tijiiiiiiti ^j) Cljarlcfi ^pra5;tte ^arsent A MANUAL OF THE TREES OF NORTH AMERICA, EX- CLUSIVE OF MEXICO. With over 600 illustrations drawn by Charles Edward Faxon. In one octavo volume. $6.00, 7tet, postpaid. THE SILVA OF NORTH AMERICA; OR A DESCRIPTION OF THE TREES WHICH GROW NATURALLY IN NORTH AMERICA, EXCLUSIVE OF MEXICO. With about 740 plates, drawn from Nature, by Charles Edward Faxon, de- scribing 567 species belonging to the Forest Flora of North America, exclusive of varieties. 14 volumes. 4to, |'35o.oo, 7iet. {Sold only by subscription for the e^itire set.) TREES AND SHRUBS. Illustrations of New or Little Known Ligneous Plants. Prepared chiefly from material at the Ar- nold Arboretum of Harvard University, and edited by Charles Sprague Sargent. Issued in 4to Parts, four Parts to a Volume. With Plates, by Charles Edward Faxon. Each Part, $5.00, net. Volume I. now ready. THE FOREST FLORA OF JAPAN. With illustrations. 4to, $7.50, net. HOUGHTON, MIFFLIN AND COMPANY Boston and New York TREES OF NORTH AMERICA 1 PRINCIPAL TREE REGIONS OF NOETH AMERICA A ^Wth Eastern C South Eastern B IS^orth ^"estern A B ISTorth Eastern & JSTorth. Western D Tropical Florida E Texas-Mexican Boundary F Eocky Mountains Q Oregon & California H Kew Mexico & Ai-izona Mexican Boundary MANUAL OF THE TREES OF NORTH AMERICA (EXCLUSIVE OF MEXICO) BY CHARLES SPRAGUE SARGENT Director of the Arnold Ai-boretum of Harvard University Author of The Silva of North America WITH SIX HUNDRED AND FORTY-FOUR ILLUSTRATIONS FROM DRAWINGS BY CHARLES EDWARD FAXON LIBRARY NEW YORK BOTANICAL GARDEN BOSTON AND NEW YORK HOUGHTON, MIFFLIN AND COMPANY 1905 COPYRIGHT IQ05 BY CHARLES SPRAGUE SARGENT ALL RIGHTS RESERVED Published March^ iqo§ To M. R. S., THE WISE AND KIND FRIEND OF THIRTY YEARS, THIS BOOK IS DEDICATED WITH GRATITUDE AND AFFECTION viii TKEFACE Oak in that region need occupy himself only with those species which in the conspectus of the genus Quercus or Pinusare followed by the letter (A), while a person wishing to determine an Oak or a Pine-tree in Oregon or California may pass over all species which are not followed by (G), the letter which represents the Pacific coast region south of the state of Washington. The sign of degrees (°) is used in this work to represent feet, and the sign of min- utes (') inches. The illustrations which accompany each species and important variety are one half the size of nature, except in the case of a few of the large Pine cones, the flow- ers of some of the Magnolias, and the leaves and flower-clusters of the Palms. These are represented as less than half the size of nature in order to make the illustrations of uniform size. These illustrations are from drawings by Mr. Faxon, in which he has shown his usual skill and experience as a botanical draftsman in bringing out the most important characters of each species, and in them will be found the chief value of this Manual. For aid in its preparation I am indebted to him and to my other associates, Mr. Alfred Rehder and Mr. George R. Shaw, who have helped me in compiling the most difficult of the keys. C. S. Sargent. Arnold Arboketum, Jamaica Plain, Mass. January, 1905. TABLE OF CONTENTS PAGE Map of North America (exclusive of Mexico) showing the eight re- gions into which the country is divided according to the prevailing character of the trees ...... Frontisjjiece Synopsis of Families of Plants ....... xi Analytical Key of FAivnLiES of Plants, based on the character of their leaves ........... xvi Manual of Trees Gymnospermae .......... 1 Angiospermse . . . . . . . . . .102 Monocotyledons . . ... . . . . , . 102 Dicotyledons .......... 125 Apetalse 125 Petalae 315 Polypetalae ........... 315 Gamoj^etalse .......... 718 Glossary of Technical Terms 815 Index 819 SYNOPSIS OF THE FAMILIES OF PLANTS DESCRIBED IN THIS BOOK Class I. GYMNOSPERMiB. Resinous trees ; stems formed of bark, wood, or pith, and increasing in diam- eter by the annual addition of a layer of wood inside the bark ; flowers uni- sexual ; stamens numerous ; ovules and seeds 2 or many, borne on the face of a scale, not inclosed in an ovary ; embryo with 2 or more cotyledons ; leaves straight-veined, without stipules. I. Conif erae (p. 1). Flowers usually monoecious ; ovules 2 or several ; fruit a woody cone (in Juniperus berry-like) ; cotyledons 2 or many ; leaves needle-shaped, linear or scale-hke, persistent {deciduous in Larix and Taxodium). II. Taxaceae (p. 97). Flowers dioecious, axillary, solitary ; ovules 1 ; fruit surrounded by or inclosed in the enlarg-ed fleshy aril-like disk of the flower ; cotyledons 2 ; leaves linear, alternate, persistent. Class 11. ANGIOSPERMiE. Carpels or pistils consisting of a closed cavity containing the ovules and becoming the fruit. Division I. MONOCOTYLEDONS. Stems with woody fibres distributed irregularly through them, but without pith or annual layers of growth ; parts of the flower in 3's ; ovary superior, 3-celled ; embryo with a single cotyledon ; leaves parallel-veined, persistent, without stipules. HI. Palmae (p. 102). Ovule solitary ; fruit baccate or drupaceous, 1 or rarely 2 or 3-seeded ; leaves alternate, pinnate, flabellate or orbicular, persistent. IV. LiliacBce (p. 115). Ovules numerous in each cell ; fruit 3-celled, capsular or bac- cate ; leaves linear-lanceolate. Division II. DICOTYLEDONS. Stems formed of bark, wood, or pith, and increasing by the addition of an annual layer of wood inside the bark ; parts of the flower mostly in 4's or 5's ; embryo witli a pair of opposite cotyledons ; leaves netted-veined. Subdivision 1. Apetal.^. Flowers without a corolla and sometimes with- out a calyx. Section 1. Flowers in unisexual aments {female flowers of Juglans and Quercus solitary/ or in spikes) ; ovary inferior {superior in Leitneriacece) wlien a calyx is present. V. Juglandaceae (p. 125). Flowers monoecious; fruit a nut inclosed in an indehiscent (Juglans) or 4-valved (Hicoria) fleshy or woody shell ; leaves alternate, unequally pinnate, without stipules, deciduous. XU SYNOPSIS OF THE FAMILIES VI. Myricaceee (p. 146). Flowers monoecious or diceeious ; fruit a dry drupe, covered with waxy exudations ; leaves simple, alternate, resinous-punctate, persistent. VII. Leitneriaceae (p. I.jO). Flowers diu3cious, the staminate without a calyx; ovary superior ; fruit a compressed oblong drupe ; leaves alternate, simple, without stipules, deciduous VIII. Salicaceae (p. l.">2). Flowers diceeious, without a calyx. Fruit a 2-4-valved capsule. Leaves simple, alternate, with stipules, deciduous. IX. Betulaceae (p. 189). Flowers moncecious ; fruit a nut at the base of an open leaf- like involucre (Carpinus), in a sack-like involucre (Ostrya), in the axil of a scale of an anient (Betula), or of a woody strobile (Alnus) ; leaves alternate, simple, with stipules, deciduous. X. Fagaceee (p. 210). Flowers monoecious ; fruit a nut more or less inclosed in a woody often spiny involucre ; leaves alternate, simple, with stipules, deciduous (in some species of Quercus and in Castanopsis and Pasania persistent). Section 2. Flowers unisexual (j^erfect in Ulmiis) ; calyx regular, the stamens as many as its lobes and opposite them ; ovary superior, l-cellecl ; seed 1. XI. Ulniaceae (p. 287). Fruit a compressed wing-ed samara (Ulmus) or a drupe (Celtis) ; leaves simple, alternate, with stipules, deciduous. XII. Moracese (p. 302). Flowers in ament-like spikes or heads; fruit drupaceous, inclosed in the thickened calyx and united into a compound fruit, oblong and succulent (Morus), large, dry and g'lobose (Toxylon), or immersed in the fleshy receptacle of the flower (Fieus) ; leaves simple, alternate, with stipules, deciduous (persistent in Ficus). Section 3. Flowers usually perfect ; calyx 5-lobed ; ovary superior, 1-celled ; fruit a nutlet inclosed in the thickened calyx ; leaves simjile, persistent. XIII. Polygonaceae (p. 311). Leaves alternate, their stipules sheathing- the stems. XIV. Nyctaginaceae (p. 313). Leaves alternate or opposite, without stipules. Subdivision 2. Petals. Flowers with both calyx and corolla {without a corolla in Lauraceoe, in Liquidamhar in Hamamelidacece, in Cercocarjous in Rosacece, in EuphorhiacecB, in some species of Acer, in Reynosia, Con- dalia, and Krugiodendron in Rhamnacece, in Fremmitodendron in Sterculia- cece, in Chytracidia in Myrtacece, and in Conocarpus in Combretacece). Section 1. Polypetalae. Corolla of separate petals. A. Ovary superior {partly inferior in Haniamelidacece ; inferior in Malus, Sorhus, Cratcegus, and Amelanchier in Rosacece). XV. Magnoliaceae (p. 315). Flowers perfect ; sepals and petals in 3 or 4 rows of 3 each ; fruit cone-like, composed of numerous cohering carpels ; leaves simple, alternate, their stipules inclosing the leaf -buds, deciduous or rarely persistent. XVI. Anonaceae (p. 326). Flowers perfect ; sepals 3 ; petals 6 in 2 series ; fruit a pulpy berry developed from 1 or from the union of several carpels ; leaves simple, alter- nate, without stipules, deciduous or persistent. XVII. Lauraceae (p. 329). Flowers perfect or unisexual; corolla 0; fruit a 1-seeded drupe or berry ; leaves simple, alternate, punctate, without stipules, persistent (deciduous in Sassafras). XVIII. Capparidaceae (p. 338). Flowers perfect ; sepals and petals 4 ; fruit baccate, elongated, dehiscent; leaves alternate, simple, without stipules, persistent. XIX. Hamamelidaceae (p. 339). Flowers perfect or unisexual ; sepals and petals 5 (corolla 0 in Liquidamhar) ; ovary partly inferior ; fruit a 2-celled woody capsule opening at the summit ; leaves simple, alternate, with stipules, deciduous. SYNOPSIS OF THE FAMILIES XUl XX. Platanaceae (p. 343). Flowers monoecious, in dense unisexual capitate heads; fruit an akene ; leaves simple, alternate, with stipules, deciduous. XXI. Rosaceee (p. 348). Flowers perfect ; sepals and petals 5 (petals 0 in Cercocar- pus) ; ovary inferior in Mains, Sorbus, Cratcegus, and Amelanchier ; fruit a drupe (Hetero- meles, Frunus, and Chrysobalanus), a capsule (Vauquelinia and Lyonothamnus), an akene (Cercocarpus), or a pome (Mains, Sorbus, Cratfeg-us, and Amelanchier) ; leaves simple or pinnately compound, alternate [opposite in Lyonothamnus), with stipules, deciduous or persistent. XXII. Leguminosae (p. 533). Flowers perfect, regular or irregular; fruit a legume; leaves compound, or simple (Dalea), alternate, with stipules, deciduous or persistent. XXIII. Zygophyllaceae (p. 578). Flowers perfect; calyx 5-lobed ; petals 5; fruit capsular, becoming fleshy ; leaves opposite, pinnate, with stipules, persistent. XXIV. Rutaceae (p. 580). Flowers unisexual or perfect ; fruit a capsule (Fagara), a samara (Ptelea), of indehiscent wing-ed 1-seeded carpels (Helietta), or a drupe (Amyris) ; leaves alternate or opposite, compound, glandular-punctate, without stipules, persistent or rarely deciduous (0 in Canotia). XXV. Simarubaceae (p. 589). Flowers dioecious, calyx 5-lobed; petals 5; fruit drupaceous ; leaves alternate, equally pinnate, without stipules, persistent. XXVI. Burseraceae (p. 591). Flowers perfect ; calyx 4 or 5-parted ; petals 5 ; fruit a drupe ; leaves alternate, compound, without stipules, deciduous. XXVII. Meliaceae (p. 593). Flowers perfect ; calyx 5-lobed ; petals 5 ; fruit a 5-celled dehiscent capsule ; leaves alternate, equally pinnate, without stipules, persistent. XXVIII. Euphorbiaceae (p. 594). Flowers perfect; calyx 4-G-parted (Drypetes), 3- lobed (Hippomane), or 0 (Gymnanthes) ; petals 0 ; fruit a drupe (Drypetes and Hippomane), or a 3-lobed capsule (Gymnanthes). XXIX. Anacardiaceae (p. 601). Flowers usually unisexual, dioecious or polygamo- dioecious ; fruit a dry drupe ; leaves simple or compound, alternate, without stipules, decid- uous (persistent in one species of Rhus). XXX. Cyrillaceae (p. 610). Flowers perfect; calyx 5-8-lobed; petals 5-8; fruit an indehiscent capsule ; leaves alternate, without stipules, persistent (more or less deciduotis in Cyrilla). XXXI. Aquifoliaceae (p. 613). Flowers polygarao-dioecious ; calyx 4 or 5-lobed; petals 5 ; fruit a drupe, with 4-8 1-seeded nutlets ; leaves alternate, simple, with stipules, persistent or deciduous. XXXII. Celastraceae (p. 619). Flowers perfect, polygamous or dioecious; calyx 4 or 5-lobed ; petals 4 or 5 ; fruit a drupe, or a capsule (Evonymus) ; leaves simple, opposite or alternate, with or without stipules, persistent (deciduous in Evonymus). XXXIII. Aceraceae (p. 624). Flowers dioecious or monoeeiously polygamous ; calyx usually 5-parted ; petals usually 5, or 0 ; fruit of 2 long-winged samara joined at the base ; leaves opposite, simple or rarely pinnate, without or rarely with stipules, deciduous. XXXIV. Hippocastanaceae (p. 643). Flowers perfect, irregular; calyx 5-lobed; petals 4 or 5, unequal ; fruit a 3-celled 3-valved capsule ; leaves opposite, digitately com- pound, long-petiolate, without stipules, deciduous. XXXV. Sapindaceae (p. 649). Flowers polygamous ; calyx 4 or 5-lobed ; corolla of 4 or 5 petals ; fruit a berry (Sapindus and Exothea), a drupe (Hj'pelate), or a 3-celled capsule (Ungnadia) ; leaves alternate, compound, without stipules, persistent, or deciduous (Ungnadia) . XXXVI. Rhamnaceae (p. 657). Flowers usually perfect ; calyx 4 or 5-lobed ; petals 4 or 5 (0 in Beynosia, Condalia, and Krugiodendron) ; fruit drupaceous ; leaves simple, alternate (mostly opposite in Beynosia and Krugiodendron) , with stipules, persistent (deciduous in some species of Bhamnus). XXXVII. Tiliaceae (p. 669). Flowers perfect; sepals and petals 5 ; fruit a nut-like berry ; leaves simple, alternate, mostly oblique at the base, with stipules, deciduous. XIV SYNOPSIS OF THE FAMILIES XXXVIII. Sterculiacece (p. CT6). Flowers perfect; calyx 5-lobed ; petals 0 ; fruit a 4 or 5-valved dehiscent capsule ; leaves simple, alternate, with stipules, persistent. XXXIX. Theaceae (p. 677). Flowers perfect ; sepals and petals 5 ; fruit a 5-celled woody dehiscent capsule, loeulicidally dehiscent ; leaves simple, alternate, without stipules, persistent or deciduous. XL. Canellaceae (p. 680). Flowers perfect; sepals 3 ; petals 5 ; filaments united into a tube ; fruit a berry ; leaves simple, alternate, without stipules, persistent. XLI. Koeberliniaceae (p. 681). Flowers perfect ; sepals and petals 4, minute ; leaves bract-like, alternate, without stipules, caducous. XLII. Caricaceae (p. 082). Flowers unisexual or perfect; calyx 5-lobed ; petals 5; fruit baccate ; leaves palmately lobed or digitate, alternate, without stipules, persistent. B. Ovary inferior {partly i7if67%or in Rhizophora). XLIII. Cactaceee (p. 684). Flowers perfect ; petals and sepals numerous ; fruit a berry ; leaves usually wanting-. XLIV. Rhizophoraceae (p. 691). Flowers perfect; calyx 4-parted ; petals 4 ; ovary partly inferior ; fruit a 1-celled 1-seeded berry perforated at the apex by the germinating embryo ; leaves simple, opposite, entire, with stipules, persistent. XLV. Myrtaceae (p. 693). Flowers perfect; calyx usually 4-lobed, or reduced to a single body forming a deciduous lid to the flower (Chytraculia) ; petals usually 4 {0 in Chytraculia) ; fruit a berry ; leaves simple, opposite, pellucid-punctate, without stipules, persistent. XLVI. Combretaceae (p. 700). Flowers perfect or polygamous; calyx 5-lobed; petals 5 (0 in Conocarpus) ; fruit drupaceous ; leaves simple, alternate or opposite, without stipules, persistent. XL VII. Araliaceae (p. 704). Flowers perfect or polygamous ; sepals and petals usu- ally 5 ; fruit a drupe ; leaves twice pinnate, alternate, with stipules, deciduous. XLVIII. Cornaceae (p. 706). Flowers perfect or polygamo-dioecious ; calyx 4 or 5- toothed ; petals 4 or 5 ; fruit a fleshy drupe ; leaves simple, opposite {alternate in one species ofCornus), without stipules, deciduous. Section 2. Gamopetalse. Corolla of united petals (divided in Elliottia in Ericacece, 0 in some species of Fraxinus in Oleacece.) A. Ovary superior (inferior m Vaccinium in Ericacece, partly inferior in Symplocacece and Styracece). XLIX. Ericaceae (p. 718). Flowers perfect; calyx and corolla 5-lobed {in Elliottia corolla of 4 petals) ; {ovary inferior in Vaccinium) ; fruit capsular, drupaceous or baccate ; leaves simple, alternate, without stipules, persistent {deciduous in Elliottia and Oxydendrum). L. Myrsinaceae (p. 733). Flowers perfect; calyx and corolla 5-lobed; stamens 5; fruit a drupe ; leaves simple, alternate, entire, without stipules, persistent. LI. Theophrastaceae (p. 735). Flowers perfect, with staminodia ; sepals and petals 5 ; stamens 5 ; fruit a berry ; leaves simple, opposite or alternate, entire, without stipules. LII. Sapotaceae (p. 736). Flowers perfect ; calyx 5-lobed ; corolla 5-lobed {6-lobed in Mimusops), often with as many or twice as many internal appendages borne on its throat ; fruit a berry ; leaves simple, alternate, without stipules, persistent {deciduous in some species of Bumelia). LIII. Ebenaceae (p. 748). Flowers perfect, dioecious, or polygamous ; calyx and co- rolla 4-lobed ; fruit a 1 or several seeded berry ; leaves simple, alternate, entire, without stipules, deciduous. LIV. Symplocaceae (p. 752). Flowers perfect; calyx and corolla 5-lobed; ovary partly inferior ; fruit a drupe ; leaves simple, alternate, without stipules, deciduous ; pubes- cence simple. SYNOPSIS OF THE FAMILIES XV LV. Styraceee (p. 754). Flowers perfect ; calyx 4-tootlied ; corolla 4-lobed or divided nearly to the base ; ovary partly inferior ; fruit a drupe ; leaves simple, alternate, without stipules, deciduous ; pubescence mostly scurfy or stellate. LVI. Oleaceae (p. 757). Flowers perfect or polygamo-dioecious ; calyx 4-lobed [0 in some species of Fraxinus) ; corolla 2-6-parted {0 in some species of Fraxinus); fruit a winged samara (Fraxinus) or a fleshy drupe (Chionanthus and Osmanthus) ; leaves pinnate (Fraxinus) or simple, opposite, without stipules, deciduous {persistent in Osmanthus). LVII. Borraginaceae (p. 781). Flowers perfect or polygamous ; calyx and corolla 5-lobed ; fruit a drupe ; leaves simple, alternate, scabrous-pubescent, without stipules, per- sistent or tardily deciduous. LVIII. Verbenaceae (p. 787). Flowers perfect; calyx 5-lobed; corolla 4 or 5-lobed; fruit a drupe or a 1-seeded capsule ; leaves simple, opposite, without stipules, persistent. LIX. Bignoniaceae (p. 791). Flowers perfect; calyx bilabiate; corolla bilabiate, 5- lobed ; fruit a woody capsule (Catalpa and Chilopsis) or a berry (Crescentia) ; leaves sim- ple, opposite {sometimes alternate in Chilopsis), without stipules, deciduous {persistent in Crescentia). B. Ovary inferior (^partly superior in Sambucus in Caprifoliacece). LX. RubiaceSB (p. 798). Flowers perfect; calyx and corolla 4 or 5-lobed; fruit a cap- sule (Exostema and Pinckneya), a drupe (Guettarda), or nut-like (Cephalanthus); leaves simple, opposite, or in verticils of -3 (Cephalanthus), with stipules, persistent {deciduous in Pinckneya and Cephalanthus). LXI. Caprifoliaceae (p. 804). Flowers perfect; calyx and corolla 5-lobed; fruit a drupe; leaves unequally pinnate (Sambucus) or simple (Viburnum), opposite, without stipides, deciduous. ANALYTICAL KEY TO THE FAMILIES OF PLANTS INCLUDED IN THIS BOOK, BASED ON THE CHARACTER OF THE LEAVES 1. Leaves opposite. *Leaves simple. -^Leaves persistent. a Leaves with stipules. Leaves entire or sometimes slightly crenate or serrate. Leaves emarginate at the apex, very short-stalked, 1^-2' long. Leaves obovate, gradually narrowed into the petioles. Gyminda in CelastraceaB (p. 621). Leaves oval to oblong, rounded or broadly cuneate at the base {rarely alter- nate). Reynosia and Krugiodendron in Rhamnaceae (pp. 658, 660). Leaves obtusish, 3i'-5' long. Rhizophoraceae (p. 691). Leaves acute or acuminate. Exostema and Guettarda in Rubiaceae (pp. 800, 803). Leaves serrate {usually compound). Lyonothamnus in Rosaceae (p. 350). aa Leaves without stipules. Petioles with 2 large glands ; leaves obtuse, l^'-2^' long. Laguncularia in Combretaceae (p. 703). Petioles not glandular. Leaves furnished on the under side with dark glands, obtuse to acute, aromatic ; petioles short. Myrtacese (p. 693). Leaves without glands on the under side. Leaves obtuse or emarginate, rarely acute. Leaves green and glabrous beneath, obovate to oblong-ob ovate, l'-l|' long {sometimes alternate). Nyctagiiiaceae (p. 313). Leaves pubescent or cauescent beneath, generally obovate-oblong, 2'-4' long. Verbenaceae (p. 787). Leaves acute or acuminate, glabrous. Osmanthus in Oleaceae (p. 779). -4--t-Leaves deciduous. a Leaves without lobes. b Leaves serrate. Winter-buds with several opposite outer scales ; leaves puberulous beneath. Evonymus in Celastraceae (p. 619). Winter-buds enveloped by 2 large scales ; leaves glabrous, or ruf ous-tomentu- • lose along the midribs beneath. Viburnum in Caprif oliaceae (p. 804). hh Leaves entire. c Leaves without stipules. Leaves oval to oblong. Winter-buds small, with several pairs of opposite scales. Fraxinus anomala and Chionanthus in Oleaceae (pp. 765, 777). Winter-buds enveloped by 2 opposite scales. Cornus in Cornaceae (p. 712). ANALYTICAL KEY TO THE FAMILIES xvii Leaves broadly ovate, cordate at the base, acuminate, 5'-12 long, on long petioles. Catalpa in Bignouiacese (p. 792). Leaves linear to linear-lanceolate, short-stalked or sessile {sometimes alternate). Chilopsis in Bignoniaceae (p, 791). cc Leaves with persistent stipules, entire, Pinckneya and Cephalantlius in Rubiaceae (pp. 798, 802). aa Leaves palmately lobed. Aceraceae (p. 624). **Leaves compound. -•-Leaves persistent, with stipules. Leaves equally pinnate ; leaflets entire. Zygophyllaceae (p. 578). Leaves unequally pinnately parted into 3-8 linear-lanceolate segments {sometimes entire). Lyonothamnus in Rosacese (p. 350). Leaves trifoliate. Helietta and Amyris in Rutaceae (pp. 585, 588). -1- -^-Leaves deciduous. Leaves unequally pinnate or trifoliate. Winter-buds with 1 or 2 pairs of obtuse outer scales, usually puberulous. Leaflets 3-5, incisely serrate ; primary veins extending to the teeth. Acer Negundo in Aceraceag (p. 641). Leaflets usually many, rarely 3 or 1, crenate-serrate or entire, the veins arching and uniting within the margin. Fraxinus in Oleaceae (p. 758). Winter-buds with many opposite acute glabrous scales ; leaflets sharply serrate ; branches with thick pith. Sambucus in Caprifoliaceae (p. 805). Leaves digitate, with 5-7 sharply serrate leaflets ; terminal buds large. Hippocastanaceae (p. 643). 2. Leaves alternate. *Leaves simple. -i-Leaves persistent. a Leaves crowded at the end of simple or sparingly branched stems, parallel-nerved, without stipules. Leaves flabellate, stem simple. Thrinaz, Coccothrinax, Sabal, Wash- ingtonia, Serenoa in Palmae (pp. 103-111). Leaves linear-lanceolate, stem often branched. Lillaceae (p. 115). aa Leaves scattered singly or in fascicles along the branches. h Leaves linear or scale-like, without stipules. Leaves linear, flattened, light green beneath ; branchlets remaining green 2-4 years. Taxaceae (p. 97). Leaves scale-like, needle-shaped or flattened ; marked by white bands of stomata. Coniferae (p. 1). 66 Leaves orbicular to lanceolate, c Leaves palmately lobed. Leaves stellate-pubescent, about 1^' in diameter, with stipules. Sterculiaceae (p. 676). Leaves glabrous, l°-2° in diameter, without stipules. Caricaceae (p. 682), cc Leaves not lobed. d Branches spinescent. Leaves clustered at the ends of the branches, at least 2'-3' long. Bucida in Combretaceae (p. 702). Leaves scattered, not more than i'-l' long, generally obovate, mucronate, glabrous and green or brownish tomentulose beneath, Condalia in Rhamnaceas (p, 657). Leaves fascicled on lateral branchlets obtuse or emarginate, pale and gla- brous beneath, Bumelia angustifolia in Sapotaceae (p, 744). dd Branches not spinescent. e Leaves serrate or lobed. XVlll ANALYTICAL KEY TO THE FAMILIES yjuice watery. g IStipules present. /i Primary veins extending' straight to the teeth. Pasaiiia and some species of Quercus in Fagaceae (pp. 224, 220). hh Primary veins arching and united within the margin. Leaves 3-nerved from the base. Ceanothus in Rhamnaceae (p. 065). Leaves not o-nerved. Leaves acute. Leaves sinuately dentate, with few spiny teeth, glabrous. Ilex opaca in Aquifoliaceae (p. 014). Leaves serrate. Vauquelinia, Heteromeles, and Prunus Carolin- iaua and Prunus ilicif olia in Rosaceae (pp. o40, 358, 527, 530). Leaves obtuse, sometimes mucronate. Leaves spinose-serrate, g-labrous. Rhamnus crocea in Rhamnaceae (p. 602). Leaves crenate {often entire), oval to oblong. Hex vomitoria in Aquifoliaceae (p. 010). hhh Primary veins extending straight to the teeth. Cercocarpus in Rosaceae (p. 504). gg Stipules wanting-. Leaves resinous-dotted, aromatic. Myricaceae (p, 140). Leaves not resinous-dotted, crenately serrate, gradually narrowed into short stout petioles ; bark red-brown. Gordonia Lasianthus in Theaceae (p. 078). _// Juice milky. Hippomane and Gymnanthes in Euphorbiaceae (pp. 598, 599). €e Leaves entire {rarely sparingly toothed on vigorous hranchlets). i Stipules present. j Stipules connate, at least at first. Stipules persistent, forming a sheath surrounding the branch above the node; leaves obtuse. Polygonaceae (p. 311). Stipules deciduous, enveloping the young leaf before unfolding. Leaves ferrugineous-tomentose beneath. Magnolia fcetida in Magnoliaceae (p. 310). Leaves glabrous beneath, with milky juice. Ficus in Moraceae (p. 308). jj Stipules free. k Juice milky. Drypetes and Gymnanthes in Euphorbiaceae (pp. 595, 599). kk Juice watery. / Leaves obtuse or emarginate at the apex. Leaves with ferrugineous scales beneath, their petioles slender. ' Capparidaceae (p. 338). Leaves without ferrugineous scales. Leaves rarely 2'-3' long, standing on the branch at acute angles. Chrysobalanus in Rosaceae (p. 532). ' Leaves rarely more than 1 ' long, spreading (sometimes 3-nerved). Ceanothus spinosus in Rhamnaceae (pp. 067). ANALYTICAL KEY TO THE FAMILIES xix U Leaves acute. Petioles with 2 glands. Conocarpus in Combretaceae (p. 700). Petioles without glands. Leaves and branchlets more or less pubescent, at least while young. Leaves fascicled except on young branchlets. Cercocarpus in Rosacese (p. 504). Leaves not fascicled. Winter-buds minute, with few pointed scales. Ilex Cassine in Aquifoliaceas (p. 615). Winter-buds conspicuous, with numerous scales. Castanopsis, Pasania, and Quercus in FagaceaB (pp. 222, 224, 226). Leaves and branchlets glabrous. Prunus (Cherry Laurels), in Rosaceae (p. 527). ii Stipules wanting. m Leaves aromatic when bruised. Leaves resinous-dotted. Myricaceae (p. 146). Leaves not resinous-dotted. Leaves obtuse, obvate, glabrous. Canellaceae (p. 680). Leaves acute. Leaves mostly rounded at the narrowed base, glabrous. Anona in Anonaceae (p. 328). Leaves more or less wedge-shaped at the base. Persea, Ocotea, and Umbellularia in Lauraceae (pp. 329, 332, 334). mm Leaves not aromatic. n Leaves acute or acutish. Leaves obovate, gradually narrowed into short petioles. Leaves 2'-2|' long. Schaefferia in CelastraceaB (p. 622). Leaves at least 6'-8' long. Crescentia in Bignouiaceae (p. 796). Leaves elliptic to oblong or ovate. Leaves rough above, pubescent below, subcordate to cuneate at the base. Ehretia and Cordia in Borraginaceae (pp. 781, 785). Leaves smooth above. Winter-buds scaly. Rhododendron, Kalmia, Xolisma, Arbutus in Ericaceae (pp. 720, 722, 726, 727). Winter-buds naked. Leaves more or less pubescent below. Sideroxylum, Dipholis, Chrysophyllum (with milky juice), in Sapotaceae (pp. 737, 738, 745). Leaves glabrous beneath, marked by minute black dots. Myrsinaceae (p. 733). nn Leaves obtuse or emarginate at the apex. o Leaves rounded or cordate at the base, emarginate, their 'petioles slender. Leaves reniform to broadly ovate, cordate ; juice watery. Cercis in Leguminosae (p. 551). Leaves elliptic to oblong, rounded at base ; juice milky or vdscid. XX ANALYTICAL KEY TO THE FAMILIES Leaves eniarf^-inate ; petioles slender, mfoxis-tonientiilose. Mimusops ill Sapotaceae (p. 740). Leaves obtuse at the apex ; petioles stout, grayish-tomen- tulosc or j^labrons. Rhus integiifolia in Anacardiaceae (p. 609). 00 Leaves cuneate at the base. Petioles slender, ^' long. Bourreria in Borraginaceae (p. 784). Petioles short and stout. Leaves coriaceous, with thick revolute margins {sometimes oppo- site). Theophrastaceae (p. 735). Leaves subcoriaceous, slightly revolute. Leaves oval to obovate ; branches spreading. Vaccinium in Ericaceae (p. 731). Leaves obovate-oblong to oblong--lanceolate ; branches upright {sometimes decirfuous in Cyrilla). Cyrillaceae (p. GIO). -♦•-••Leaves deciduous. *+Leaves conspicuous. a Leaves entire, sometimes 3 or 4-lobed. b Stipules present. Juice milky. Moraceae (p. 302). Juice watery. Stipules connate, enveloping the young leaves. Magnoliaceae (p. 315). Stipules distinct. Branches spineseent, leaves glandular, caducous (crenateJy serrate on vigorous shoots). Dalea in Leguminosae (p. 570). Branches not spineseent ; leaves without glands. Winter-buds with a single pair of connate scales. Salix in Salicaceae (p. 166). Winter-buds with several pairs of imbricate scales ; branchlets without terminal buds. Celtis Mississippiensis in Ulmaceae (p. 300). bb Stipules wanting. c Leaves broad, oval to lanceolate. Branchlets bright green and lustrous for the first 2 or 3 years ; leaves sometimes 3-lobed, aromatic. Sassafras in Lauraceae (p. 335). Branchlets brown or gray. Leaves acute or acuminate. Leaves 10'-12' long, obovate-oblong, acuminate, glabrous, emitting a disagreeable odor. Asimina in Anonaceae (p. 326). Leaves smaller. Leaves glabrous, or pubescent below at maturity. Petioles very slender l'-2' long ; leaves elliptic, acuminate. Cornus alternifolia in Cornaceae (p. 717). Petioles short. Branchlets without lenticels, light reddish brown. Elliottia in EricaceaB (p. 719). Branchlets with small lenticels. Branchlets with terminal buds. Nyssa in Cornaceae (p. 707). Branchlets without terminal buds. Diospyros Virginiana in Ebenaceae (p. 749). Leaves tomentose below, elliptic to lanceolate-oblong. Leitneriaceae (p. 150). ANALYTICAL KEY TO THE FAMILIES XXI Leaves obtuse or acute. Branchlets not spinescent. Leaves glabrous at maturity, their petioles slender. Cotinus in Anacardiaceas (p. 601). Leaves pubescent below at maturity ; their petioles short and thick. Diospyros Texana in Ebenaceae (p. 750). Branchlets spinescent ; leaves often fascicled on lateral branchlets. Bumelia in Sapotaceae (p. 740). cc Leaves linear, fascicled and scattered on the young branches, or 2-ranked in Taxodium. Larix and Taxodium in Coniferae (pp. 34, 70). aa Leaves serrate or pinnately lobed. d Stipules present. e Winter-buds naked. Leaves oblique at the base, the upper side rounded or subcordate, ob- ovate, coarsely toothed. Hamamelis in Hamamelidaceae (p. 341). Leaves equal at the base, cuneate, finely serrate or crenate. Rhamnus Caroliniana and Rhamnus Purshiana in Rhamnaceae (pp. 663, 664). ee Winter-buds covered by scales. Winter-buds with a single pair of connate scales. Primary veins arching and uniting within the margins ; leaves sim- ply serrate or crenate, sometiraies entire. Salix in Salicaceae (p. 166). Primary veins extending to the teeth, leaves doubly serrate, often slightly lobed. Alnus in Betulaceae (p. 208). eee Winter-buds with several pairs of imbricate scales. Terminal buds wanting, branchlets prolonged by upper axillary buds. Leaves distinctly oblique at the base. Ulmaceae (p. 287). Leaves slightly or not at all oblique at the base. Carpinus, Ostrya, and Betula in Betulaceae (pp. 180, 191, 194). Terminal buds present. Primary veins arching and uniting within the margin {extending to the margin in the lobed leaves of Malus). Winter-buds resinous ; leaves crenate, usually truncate at the base ; petioles slender. Populus in Salicaceae (p. 152). Winter-buds not resinous. Malus, Amelanchier, Prunus in Rosaceae (pp. ,351, 360, 509). Primary veins extending to the teeth or to the lobes. Leaves lobed or remotely dentate or crenate ; lobes not serrate, but occasionally coarsely toothed. Fagus, Castanea, Quercus in Fagaceae (pp. 217, 219, 226). Leaves doubly or simply serrate, or lobed, with serrate lobes ; branches often furnished with spines. Malus and Crataegus in Rosaceae (pp. 351, 363). dd Stipules wanting, y* Leaves not lobed. Leaves subcoriaceous. Leaves obovate, acute. Gordonia Altamaha in Theaceae (p. 679). XXll ANALYTICAL KEY TO THE FAMILIES Leaves oblong, najrowed at the ends, sometimes nearly entire. Symplocaceae (p. 752). Leaves membranaceous. Leaves oblong' or lanceolate, acuminate, glabrous or puberulous while young, turning scarlet in the autumn. Oxydendrum in Ericaceae (p. 724). Leaves ovate to elliptical, stellate-pubescent while young, turning yellow in the autumn. Styraceae (p. 754), ^Leaves palmately lobed. Stipules large, foliaceous, united ; branchlets without terminal buds. Platanaceae (p. 343). Stipules small, free, caducous ; branchlets with terminal buds. Liquidambar in Hamamelidaceae (p. 339). •M.-M- Leaves inconspicuous or wanting ; sj)iny or prickly trees. Branches or stems succulent, armed with numerous prickles. Cactaceae (p. 684). Branches rigid, spinescent. Leaves minute, narrowly obovate. Branchlets bright green. Koeberliniaceae (p. 681). Branchlets red-brown. Dalea in Leguminosae (p. 570). Leaves scale-like. Canotia in Celastraceae (p. 623). **Leaves compound. -*■ Leaves 3-foliolate, without stipules. Leaves persistent ; leaflets entire. Hypelate in Sapindaceae (p. 654). Leaves deciduous, strongly scented and bitter ; leaflets serrate or entire, acute. Ptelea in Rutaceae (p. 587). -••Leaves pinnate. a Leaves twice pinnate ; stipules present. Branches and stem armed with scattered prickles ; leaves 2°-4° long ; leaflets serrate, 2'-3'long. Araliaceae (p. 704). Branches unarmed, or armed with axillary or stipular spines ; leaflets entire or crenate-serrate. Zygia, Lysiloma, Acacia, Leucaena, Gymnocladus, Gle- ditsia in Leguminosae (pp. 535, 538, 540, 545, 553, 555). aa Leaves equally pinnate. Stipules wanting ; leaves persistent ; leaflets entire. Leaflets 2-4, generally oblong-obovate. Exothea in Sapindaceae (p. 653). Leaflets 6-12. Leaflets obtuse, 6-12. Leaflets 8-12, 2'-3' long ; leaves occasionally opposite. Simarubaceae (p. 589). Leaflets 6-8, 1'-li' long. Fagara coriacea in Anacardiaceae (p. 584). Leaflets acuminate, 6-8. Meliaceae (p. 593). Stipules present ; leaves deciduous or persistent. Prosopis, Parkinsonia, Cercidium, Eysenhardtia, Olneya in Leguminosae (pp. 547, 559, 562, 569, 575). aaa Leaves unequally pinnate. 6 Stipules present. Leaflets sharply serrate ; leaves deciduous ; winter-buds resinous. Sorbus in Rosaceae (p. 356). Leaflets entire or crenately serrate ; leaves deciduous (persistent in Eysenhardtia, Olneya, and in Sophora secundijiora). Gleditsia, Sophora, Cladrastis, Robinia, Olneya, Ichthy- omethia in Leguminosae (pp. 555, 564, 567, 571, 575, 577). ANALYTICAL KEY TO THE FAMILIES xxiii hb Stipules wanting. c Leaves clustered at the apex of simple stout stems, parallel-nerved, persistent. Roystonea and Pseudophcenix in Palmae (pp. 112, 114). cc Leaves scattered on branched stems. d Leaves persistent. Leaflets long-stalked (sometimes nearly sessile in Fagara flava). Leaflets ovate-oblong, wedge-shaped at the base. Fagara flava in Rutaceae (p. 583). Leaflets broadly ovate, usually rounded or subeordate at the base. Metopium in Anacardiaceae (p. 603). Leaflets sessile or nearly so. Petiole and rachis winged. Leaflets crenate, obovate, about ^' long ; branches prickly. Fagara Fagara in Rutaceae (p. 581). Leaflets entire, oblong, usually acute, 3'-4' long ; branches unarmed. Sapindus Saponaria in Sapindaceae (p. 650). Petiole and rachis not winged ; leaflets acuminate, 7-19. Sapindus marginatus in Sapindaceae (p. 651). dd Leaves deciduous. Leaflets long-stalked, entire, acute, 3-7. Burseraceae (p. 591). Leaflets sessile or nearly so. Branches prickly ; leaflets crenate. Fagara Clava-Herculis in Rutaceae (p. 582). Branches unarmed. Juice milky or viscid ; leaflets serrate or entire ; rachis sometimes winged. Rhus in Anacardiaceae (p. 604). Juice watery ; rachis without wings. Leaflets entire, acuminate, 7-9. Sapindus Drummondi in Sapindaceae (p. 652). Leaflets serrate or crenate. Winter-buds large and scaly or naked ; leaves aromatic. Juglandaceae (p. 125). Winter-buds minute, globose, scaly ; leaflets 5-7, ovate, not aro- matic. Ungnadia in Sapindaceae (p. 655). TREES OF NORTH AMERICA (Exclusive of Mexico) Class 1. GYMNOSPERM^, Ovules and seeds borne on the face of a scale, not inclosed in an ovary ; resinous trees, with stems increasing in diameter by the annual addition of a layer of wood inside the bark. I. CONIFER-ai. Trees, with narrow or scale-like generally persistent clustered or alternate leaves and usually scaly buds. Flowers appearing in early spring, mostly sur- rounded at the base by an involucre of the more or less enlarged scales of the buds, unisexual, monoecious (dlmcious in Juniioerus)^ the staminate consisting of numerous 2-celled anthers, the pistillate of scales bearing on their inner face 2 or several ovules, and becoming at maturity a woody cone or rarely a berry. Seeds with or without wings ; seed-coat of 2 layers ; embryo axile in copious albumen ; cotyledons 2 or several. Of the thirty-one genera scattered over the surface of the globe, but most abundant in northern temperate regions, thirteen occur in North America. CONSPECTUS OF THE NORTH AMERICAN GENERA. Scales of the pistillate flowers in the axils of persistent bracts ; ovules and seeds borne directly on the scales. Abietine^. Scales of the pistillate flower numerous, spirally arranged ; ovules 2, inverted ; seeds attached at the base in shallow depressions on the inner side of the scales, falling from them at maturity and usually carrying away a scarious wing ; leaves fascicled or scattered [deciduous in Larix). Fruit maturing in two or rarely in three seasons. Leaves fascicled, needle-shaped. Leaves in axillary 1-5-leaved clusters, inclosed at the base in a membranaceous sheath ; cone-scales thick and woody, much longer than their bracts. 1. Pinus. Fruit maturing in one season. Leaves in many-leaved clusters on short spur-like branchlets, deciduous ; cone- scales thin, usually shorter than their bracts. 2. Laris. Leaves scattered, linear. * Cones pendulous, the scales persistent on the axis. Branchlets roughened by the persistent leaf -bases ; leaves deciduous in dry- ing ; bracts shorter than the cone-scales. Leaves sessile, 4-sided, or flattened and stomatiferous above. 3. Picea. Leaves stalked, flattened and stomatiferous below, or angular. 4. Tsuga. 2 TREES OF NORTH AMERICA Branchlets not roughened by leaf-bases. Leaves stalked, flattened ; bracts of the cone 2-lobed, aristate, longer than the scales. 5. Pseudotsuga. Cones erect, theix scales deciduous from the axis, longer or shorter than the bracts. Leaves sessile, flat or 4-sided. 0. Abies. Scales of the pistillate flowers without bracts ; ovules and seeds borne on the face of minute scales adnate to the base of the flower-scales, enlarging and forming the scales of the cone. Taxodi^. Scales of the pistillate flowers numerous, spirally arranged, forming a woody cone ; ovules erect, 2 or many under each scale ; leaves linear, alternate, often of 2 forms {deciduous in Taxodium). Ovules and seeds numerous under each scale ; leaves persistent. 7. Sequoia. Ovules and seeds 2 under each scale ; leaves mostly spreading in 2 ranks, decidu- ous. 8. Taxodium. CuPKESSiNBiE. Scales of the pistillate flower few, decussate, forming a small cone, or rarely a berry ; ovules 2 or many under each scale ; leaves decussate or in 3 ranks, often of 2 forms, usually scale-like, mostly adnate to the branch, the earliest free and subulate. Fruit a cone ; leaves scale-like. Cones oblong, their scales oblong, imbricated or valvate ; seeds 2 under each scale, maturing the first year. Scales of the cone 6, the middle ones only fertile ; seeds unequally 2-winged. 9. Libocedrus. Scales of the cone 8-12 ; seeds equally 2-winged. 10. Thuya. Cones subglobose, the scales peltate or wedge-shaped, maturing in one or two years ; seeds few or many under each scale. Fruit maturing in two seasons ; seeds many under each scale. 11. Cupressus. Fruit maturing in one season ; seeds 2 under each scale. 12. Chamaecyparis, Fruit a berry formed by the coalition of the scales of the flower ; ovules in pairs or solitary ; flowers dioecious ; leaves decussate or in 3's. Leaves subulate or scale-like, often of 2 forms. 13. Juniperus. 1. PINUS, Duham. Pine. Trees or rarely shrubs, with deeply furrowed and sometimes laminate or with thin and scaly bark, hard or often soft heartwood often conspicuously marked by dark bands of summer cells impregnated with resin, pale nearly white sapwood, and large branch-buds formecj during summer. Leaves needle-shaped, clustered, the clusters borne on rudimentary branches in the axils of scale-like primary leaves, inclosed in the bud by numerous scales lengthening and forming a more or less persistent sheath at the base of each cluster. Staminate flowers clustered at the base of leafy growing shoots of the year, each flower surrounded at the base by an involucre of 3-6 scale- like bracts, composed of numerous^sessile anthers, imbricated in many ranks and sur- mounted by crest-like nearly orbicular connectives ; the pistillate subterminal or lateral, their scales in the axils of non-accrescent bracts. Fruit a woody cone matur- ing at the end of the second or. rarely of the third season, composed of the hardened and woody scales of the flower more or less thickened on the exposed surface (the apophysis), with the ends of the growth of the previous year appearing as terminal or dorsal brown protuberances or scars (the umbo). Seeds usually obovate, shorter or CONIFERS 6 longer than their wings; outer seed-coat crustaceous or thick, hard, and bony, the inner membranaceous; cotyledons 3-18, usually much shorter than the inferior radicle. Pinus is widely distributed through the northern hemisphere from the Arctic Circle to the West Indies, the mountains of Central America, the Canary Islands, northern Africa, Bermuda, the Philippine Islands, and Sumatra. About eighty species are recognized. Of exotic species the so-called Scotch Pine, Pinus sylvestris, L., of Europe and Asia, the Swiss Stone Pine, Pinus Cembra, L., and the Austrian Pine and other forms of Pinus Laricio, Poir., from central and southern Europe, are often planted in the northeastern states, and Pinus Pinaster, Ait., of the coast region of western France and the Mediterranean Basin is successfully cultivated in central and southern California. Pinus is the classical name of the Pine-tree. The North American species can be conveniently grouped in two sections, Soft Pines and Pitch Pines. SOFT PINES. Wood soft, close-grained, light-colored, the sapwood thin and nearly white ; sheaths of the leaf-clusters deciduous ; leaves with one fibro-vascular bundle. Leaves in 5-leaved clusters. Cones long-stalked. Cones bright green at maturity, becoming light yellow-brown, their scales thin, with terminal unarmed umbos. White Pines. Seeds shorter than their wings ; leaves 4' long or less. Leaves slender, flexible. Cones h'-Q' long. 1. P. Strobus (A). Leaves stout, more rigid. Cones o'-lV long. 2. P. monticola (B, G). Cones 12'-18' long. 3. P. Lambertiana (G). Seeds longer than their wings ; leaves slender, ?i^'-^' long. Cones 5'-9' long, their scales strongly reflexed at the apex. 4. P. strobiformis (H). Cones short-stalked. Cones green or purple at maturity, becoming yellow-brown, their scales thick with terminal sometimes pointed umbos. Seeds much longer than their wings ; leaves 2' long or less, stout and rigid. Stone Pines. Cones .S'-IO' long, their scales opening at maturity and losing their seeds. 5. P. flexilis (F). Cones I'-S' long, their scales remaining closed at maturity. 6. P. albicaulis (B, F, G). Cones purple at maturity, their scales thick, the dorsal umbos armed with slender prickles ; seeds shorter than their wings ; leaves in crowded clusters, incurved, less than 2' long. Foxtail Pines. Cones armed with minute incurved prickles. 7. P. Balfouriana (G). Cones armed with long slender piickles.' 8. P. aristata (F, G). Leaves in 1-4-leaved clusters. Cones globose, green at maturity, becoming- light brown, their scales few, concave, much thickened, only the middle scales seed-bearing; seeds large and edible, their wings rudimentary ; leaves 2' or less, often incurved. Nut Pines. Leaves stout, usually in 4-leaved clusters. 9. P. quadrifolia (G). Leaves slender, usually in 3-leaved clusters. 10. P. cembroides (H). Leaves stout, in 2-leaved clusters. 11. P. edulis (F). Leaves stout, usually in 1-leaved clusters. 12. P. monophylla (F, G). TREES OF NORTH AMERICA 1. Leaves in 5-leaved clusters. *Cones long-stalked, their scales thin, unarmed. -»- Wings longer than the seeds. 1. Pinus Strobus, L. White Pine. Leaves soft bluish green, whitened on the ventral side by 3—5 bands of stomata, 3'-5' long, mostl}^ turning yellow and falling in September in their second season, or persistent until the following June. Flowers: stami- nate yellow, pistil- late bright pink, with purple scale margins. Fruit fully grown by July 1st of the sec- ond season, 6'-ll' long, opening and discharging its seeds in September ; seeds narrowed at the ends, Y long, red-brown mottled with black, about one fourth as long as their wings. A tree, while young with slender horizontal or slightly ascending branches in regular whorls usually of 5 branches; at maturity often 100°, occasionally 250° high, with a tall straight stem 3°-4° or rarely 6° in diameter; wOien crowded in the forest with short branches forming a narrow head, or rising above its forest companions with long lateral branches sweeping upward in graceful curves, the upper branches ascending and forming a broad open irregular head, and slender branchlets coated at first with rusty tomentum, soon glabrous, and orange-brown in their first winter. Bark on young stems and branches thin, smooth, green tinged with red, lustrous during the sunmier, becoming V-2' thick on old trunks and deeply divided by shal- low fissures into broad connected ridges covered with small closely appressed pur- plish scales. Wood light, not strong, straight-grained, easily worked, light brown often slightly tinged with red ; largely manufactured into lumber, shingles, and laths, used in construction, for cabinet-making, the interior finish of buildings, woodenware, matches, and the masts of vessels. Distribution. Newfoundland to Manitoba, through the northern states to Penn- sylvania, Illinois, and Iowa, and along the Alleghany Mountains to eastern Kentucky and Tennessee and northern Georgia, forming nearly pure forests on sandy drift soils, or more often in small groves scattered in forests of deciduous-leaved trees on fertile well-drained soil, also on the banks of streams, river flats, or rarely in swamps. Largely planted as an ornament of parks and gardens in the eastern states, and in many European countries, where it grows with vigor and rapidity. CONIFERS 5 2. Pinus monticola, D. Don. White Pine. Leaves blue-green, glaucous, whitened by 2-6 rows of ventral and often by dorsal stomata. Flowers : staminate yellow; pistillate pale purple. Fruit 12'-18' long, shedding its seeds late in the summer or in early autumn; seeds narrowed at the ends, I' long, pale red-brown mottled with black, about one third as long as their wings. A tree, often 100° or occasionally 150° high, with a trunk frequently 4°-5° or rarely 7°-8° in diameter, slender spreading slightly pendulous branches clothing young stems to the ground and in old age forming a narrow open often unsymmetri- cal pyramidal head, and stout tough branchlets clothed at first with rusty pubescence, dark orange-brown and puberulous in their first and dark red-purple and glabrous in their second season. Bark of young stems and branches thin, smooth, light gray, becoming on old trees |'-1^' thick and divided into small nearly square plates by deep longitudinal and cross fissures covered by small closely appressed purple scales. "Wood light, soft, not strong, close, straight-grained, light brown or red; sometimes manufactured into lumber, used in construction and the interior finish of buildings. Distribution. Scattered through mountain forests from the basin of the Columbia River in British Columbia to Vancouver Island, along the western slopes of the Rocky Mountains to northern Montana, on the mountains of northern Idaho and Washington, on the coast ranges of Washington and Oregon, and on the Cascade and Sierra Nevada ranges southward to the Kern River valley, California ; most abundant and of greatest value in northern Idaho on the bottom-lands of streams tributary to Lake Fend Oreille; reaching the sea-level on the southern shores of the Straits of Fuca, and elevations of 10,000° on the California Sierras. Often planted as an ornamental tree in Europe, and occasionally in the eastern United States where it grows more vigorously than any other Pine-tree of western America. 3. Pinus Lambertiana, Dougl. Sugar Pine, Leaves stout, rigid, 3^ '-4' long, marked on the two faces by 2-6 rows of stomata; deciduous during their second and third years. Flowers : staminate light 3'ellow, pistillate pale green. Fruit fully grown in August and opening in October, ll'-18' or rarely 21' long; seeds l|'-5' long, dark chestnut-brown or nearly black, and half 6 TREES OF NORTH AMERICA the leiif^th of their finu daik brown obtuse wiiil>lon<;r-conical, acute, oblique at the base, sessile, usually erect and stron<'ly incurved, l.\'--' loi>j;< dull piiiplo or yreon when fully grown, beeoniing light yellow and lustrous, with thin still' scales armed with minute incurved often deciduous prickles ; seeds nearly triangular, full and nmnded on the sides, '^ long, with an almost black roughcnrd shell and wings broadest at the middle, full and rounded at the apex, ^' long, ^' wide. A tree, frequently 70° high, with a straight trunk sometimes free of brunches for '20"-,'U)'' and rarely exceeding 2'^ in diameter, long spreading branches form- ing an open symmetrical head, and slender tough ilexible pale yellow-green branch- lets turning dark purple during their first winter and darker the following year; often not more than 2()''-3(r tall, with Ji stem 10'-12' in diameter ; generally fruiting when only a few years old ; sometimes shrubby with several low slender stems. Bark of the trunk thin, dark brown slightly tinged with red, very irregu- larly divided into narrow rounded connected ridges se})arating on the surface into small thick closely appressed scales. "Wood light, soft, not strong, close-grained, clear pale brown or rarely orange color, with thick nearl}' white sapwood ; used for fuel and occasionally for railway-ties and posts ; occasionally manufactured into lumber. Distribution. From Nova Scotia to the valley of the Athabasca River and down the jNlackenzie to about latitude ()o° north, ranging southward to the coast of Maine, ri(i 29 northern New Hampshire and Vermont, northern New York, the southern shores of Lake Michigan, northern Illinois, and central ISIinnesota ; abundant in central Michigan, covering tracts of barren lands ; common and of large size in the region north of Lake Superior ; most abundant and of its greatest size west of Lake AVinni- peg and north of the Saskatchewan, here often spreading over great areas of sandy sterile soil. 28. Finns glabra. "Walt. Spruce Fine. Cedar Fine. Leaves soft, slender, dark green, l^'-3' long, marked by numerous rows of sto- mata, deciduous at the end of their second and in the spring of their third year. Flowers : staminate in short crowded clusters, yellow; pistillate raised on slender slightly ascending peduncles. Fruit single or in clusters of 2 or 3, retlexed on short stout stalks, subglobose to oblong-ovate, ^'-2' long, becoming reddish brown and rather lustrous, with thin slightly concave scales armed with minute straight or incurved usually deciduous prickles; seeds nearly triangular, full and rounded on CONIFERiE 29 the sides, \' long, with a thin dark gray shell mottled with black and wings broadest below the middle, |' long, ]' wide. A tree, usually 80°-100o or occasionally 120° high, with a trunk 2°-2^''-' or rarely 3i° in diameter, comparatively small horizontal branches, and slender flexible branch- lets at first light red more or less tinged with purple, ultimately dark reddish brown. Bark ^'-f thick, slightly and irregularly divided by shallow fis- sures into flat connected ridires broken into small closely appressed light reddish brown scales. Wood light, soft, not strong, brittle, close- grained, light brown, with thick nearly white sap- wood ; occasionally used for fuel and rarely manu- factured into lumber. Distribution. Valley of the lower Santee River, South Carolina to middle and northwestern Florida, and to central Mississippi and the swamps of Bayou Fiialia, eastern Louisiana ; usually growing singly or in small groves; attaining its largest size and often occupying areas of considerable extent in northwestern Florida. f^K^ do 29. Pinus echinata. Mill. Yellow Pine. Short-leaved Pine. Leaves in clusters of 2 and of 3, slender, flexible, dark blue-green, 3'-5' long, be- ginning to fall at the end of their second season and dropping irregularly until their fifth year. Flowers : staminate in short crowded clusters, pale purple ; pistillate iji Pi^ 31 5 b^^l , ^ ' ^ clusters of 2 or 3 on stout ascending stems, pale rose color. Fruit ovate to oblong- conical, subsessile and nearly horizontal or short-stalked and pendant, generally clustered, l^'-2^' long, becoming dull brown, with thin scales nearly flat below and rounded at the apex, armed with short straight or somewhat recurved frequently 30 TREES OF NORTH AMERICA deciduous prickles; seeds nearly triangular, full and rounded on the sides, about ^^^' long, with a thin pale brown hard shell conspicuously mottled with black, their wings broadest near the middle, ^' long, \' wide. A tree, usually 80°-100° occasionally 120° high, with a tall slightly tapering trunk 3°-4° in diameter, a short pyramidal truncate head of comparatively slender branches, and stout brittle pale green or violet-colored branchlets covered at first with a glau- cous bloom, becoming dark red-brown tinged with purple before the end of the first season, their bark beginning in the third year to separate into large scales. Bark of the trunk |'-1' thick and broken into large irregularly shaped plates covered with small closely appressed light cinnamon-red scales. Wood very variable in quality, and in the thickness of the nearly white sapwood, heavy, hard, strong and usually coarse-grained, orange-colored or yellow-brown; largely manufactured into lumber. Distribution. Staten Island, New York, to North Florida and to West Virginia and eastern Tennessee, and through the Gulf states to eastern Louisiana, and southern Missouri to eastern Texas; most abundant and of its largest size west of the Mississippi River. 30. Pinus Virginiana, Mill. Jersey Pine. Scrub Pine. Leaves in remote clusters, stout, gray-green, l^'-3' long, marked by many rows of minute stomata, gradually and irregularly deciduous during their third and fourth years. Flovrers : staminate in crowded clusters, orange-brown; pistillate on opposite spreading peduncles near the middle of the shoots of the year, gener- ally a little below and alternate with 1 or 2 lateral branchlets, pale green, the scale- tips tinged with rose color. Fruit oblong-conical, often curved, dark green and lus- trous, with thin nearly flat scales, bright red-brown umbos and stout or slender persistent prickles, 2'-3' long, becoming dark red-brown, opening in the autumn and slowly shedding their seeds, turning dark reddish brown, and remaining on the branches for three or four years; seeds nearly oval, full and rounded, \' long, with a thin pale brown rough shell, their wings broadest at the middle, ^' long, about l' wide. A tree, usually 30°-40° high, with a short trunk rarely more than 18' in diame- ter, long horizontal or pendulous branches in remote whorls forming a broad open often flat-topped pyramid, and slender tough flexible branchlets at first pale green or green tinged with purple and covered with a glaucous bloom, becoming purple CONIFERS 31 and later light gray-brown ; toward the western limits of its range a tree frequently 100° tall, with a trunk 2lo-3° in diameter. Bark of the trunk ^'-h' thick, broken by shallow fissures into flat plate-like scales separating on the surface into thin closely appressed dark brown scales tinged with red. "Wood light, soft, not strong, brittle, coarse-grained, durable in contact with the soil, light orange color, with thick nearly white sapwood ; often used for fuel and occasionally manufactured into lumber. Distribution. Long Island, New York, southward generally near the coast to the valley of the Savannah River, Georgia, to northeastern Alabama and through eastern and middle Tennessee and Kentucky to southern Indiana ; usually small in the Atlantic states and only on light sandy soil, spreading rapidly over exhausted fields ; attaining its largest size west of the Alleghany Mountains on the low hills of southern Indiana. 31. Pinus clausa, Sarg. Sand Pine. Spruce Pine. Leaves slender, flexible, dark green, 2'-3^' long, marked by 10-20 rows of sto- mata, deciduous during their third and fourth y^ars. Flowers : staminate in short crowded spikes, dark orange color; pistillate lateral on stout peduncles. Fruit ovoid-conical, often oblique at the base, usu- ally clustered and reflexed, 2'- 3^' long, nearly sessile or short- stalked, with concave scales armed with short stout straight or recurved deciduous prickles, becoming dark reddish brown in the autumn; some of the cones opening at once, others re- maining closed for three or four years before liberating their seeds, ultimately turning to an ashy gray color; others still un- opened becoming enveloped in the growing tissues of the stem and branches and finally entirely covered by them ; seeds nearly triangular, compressed, i' long, with a black slightly roughened shell, their wings widest near or below the middle, ^' long, about \' wide. A tree, usually 15°-20° high, with a stem rarely a foot in diameter, generally clothed to the ground with wide-spreading branches forming a bushy flat-topped head, and slender tough flexible branchlets, pale yellow-green when they first appear, becoming light orange-brown and ultimately ashy gray ; occasionally growing to the height of 70°-80° with a trunk 2° in diameter. Bark on the lower part of the trunk ^'— ^' thick, deeply divided by narrow fissures into irregularly shaped generally oblong plates separating on the surface into thin closely appressed bright red-brown scales; on the upper part of the trunk and on the branches thin, smooth, ashy gray. Wood light, soft, not strong, brittle, light orange color or yellow, with thick nearly white sapwood; occasionally used for the masts of small vessels. Distribution. Coast of the Gulf of Mexico from southern Alabama to Peace l^icj.33 32 TREES OF NORTH AMERICA Creek, Florida, seldom extending more than thirty miles inland ; eastern Florida from the neighborhood of St. Augustine to New River, occupying a narrow belt usually not more than a mile or two wide, and covering sandy wind-swept plains ; growing to its largest size on the east coast of Florida near the head of Halifax River. 32, Pinus muricata, D. Don. Prickle-cone Pine. Leaves in crowded clusters, thick, rigid, dark yellow-green, 4'-6' long, beginning to fall in their second year. Flo"wers: staminate in elongated spikes, orange- colored ; pistillate short-stalked, whorled, 2 whorls often being produced on the shoot of the year. Fruit ovate-oblong, oblique at the base, sessile, in clusters of 3-5 or sometimes of 7, 2'-3^' but usually about 3' long, becoming light chestnut-brown and lustrous, with scales much thickened on the outside of the cone, those toward its base produced into stout mammillate incurved knobs sometimes armed with stout flattened spur-like spines incurved above the middle of the cone and recurved toward its apex, and on the inside of the cone slightly flattened and armed with stout or slender straight prickles; often remaining closed for several years and usu- ally persistent on the stem and branches during the entire life of the tree without becoming imbedded in the wood ; seeds nearly triangular, ^' long, with a thin nearly black roughened shell, their wings broadest above the middle, oblique at the apex, nearly V long and 1' wide. A tree, usually 40°-50° but occasionally 90° high, with a trunk 20-3° in diame- ter, thick spreading branches covered with dark scaly bark, in youth forming a regular pyramid, and at maturity a handsome compact round-topped head of dense tufted foliage, and stout branchlets dark orange-green at first, turning orange- brown more or less tinged with purple. Bark of the lower part of the trunk often 4'-6' thick and deeply divided into long narrow rounded ridges roughened by closely appressed dark purplish brown scales. Wood light, very strong, hard, rather coarse-grained, light brown, with thick nearly white sapwood ; occasionally manu- factured into lumber. Distribution. California coast region from Mendocino County southward, usually in widely separated localities to Tomales Point, north of the Bay of San Francisco, CONIFERS 33 and from Monterey to San Luis Obispo County; in Lower California on Cedros Island, and on the coast between Ensanado and San Quintan; of its largest size and the most common Pine-tree on the coast of Mendocino County. 33. Pinus pungens, Michx. Table Mountain Pine. Hickory Pine. Leaves in clouded clusters, rigid, usually twisted, dark blue-green, li'-2^' long, deciduous during their second and third years. Flowers : staminate in elongated loose spikes, yellow; pistillate clustered, long-stalked. Fruit oblong-conical, oblique at the base by the greater development of the scales on the upper than on the lower side, sessile, deflexed, in clusters usually of 3 or 4, or rarely of 7 or 8, 2'-3|' long, becoming light brown and lustrous, with thin tough scales armed with stout hooked spines incurved above the middle of the cone and recurved below it, those on the inner side of the cone slightly thickened, and on the outer, especially near the base of the cone, produced into much thickened mammillate knobs, opening as soon as ripe and gradually shedding their seeds, or often remaining closed for two or three years longer, and frequently persistent on tlie branches for eighteen or twenty years; seeds almost triangular, full and rounded on the sides, nearly ^' long, with a thin conspicuously roughened light brown shell, their wings widest below the middle, gradually narrowed to the ends, 1' long, ^' wide, A tree, when crowded in the forest occasionally 60° high, with a trunk 2°-3° iu diameter, and a few short branches near the summit forming a narrow round-topped head ; in open ground usually 20°-30° tall, and often fertile when only a few feet high, with a short thick trunk frequent- ly clothed to the ground, and long horizontal branches, the lower pendulous toward the extremi- ties, the upper sweep- ing in graceful up- ward curves and forming a flat-topped often irregular head, and stout branchlets, light orange color when they first appear, soon growing darker and ultimately dark brown. Bark on the lower part of the trunk |'-1' thick and broken into irregularly shaped plates separating on the surface into thin loose dark brown scales tinged with red, higher on the stem, and on the branches dark brown and broken into thin loose scales. Wood light, soft, not strong, brittle, very coarse- grained, pale brown, with thick nearly white sapwood ; somewhat used for fuel, and in Pennsylvania manufactured into charcoal. Distribution. Dry gravelly slopes and ridges of the Appalachian Mountains from Pennsylvania to North Carolina and eastern Tennessee, sometimes ascending to elevations of 3000°, with isolated outlying stations in Virginia, eastern Pennsyl- vania, and western New Jersey; often forming toward the southern limits of its range pure forests of considerable extent. 34 TREES OF NORTH AMERICA ***Leaves in 5-leaved clusters. Seeds shorter than their wings. 34. Pinus Torreyana, Torr. Torrey's Pine. Leaves forming great tufts at the ends of the branches, stout, dark green, conspicuously marked on the 3 faces by numerous rows of stomata, 8'-13' long. Flowers from January to ]\Iarch ; staniinate yellow, in short dense heads ; pistillate PiQ c36 subterminal on long stout peduncles. Fruit broadly ovate, spreading or deflexed, on long stalks 4'-6' in length, becoming bright chestnut-brown, with thick scales armed with minute spines ; mostly deciduous in their fourth year and in falling leaving a few of the barren scales on the stalk attached to the branch ; seeds oval, more or less angled, |'-1' long, dull brown and mottled on the lower side, light yellow- brown on the upper side, with a thick hard shell, nearly surrounded by their dark brown wings often nearly 1' long. A tree, usually 30°-40° high, with a short trunk about 1° in diameter, or occa- sionally 50°-60° tall, with • a long straight slightly tapering stem 2^° in diameter, stout spreading and often ascending branches, and ver^'^ stout branchlets bright green in their first season, becoming light purple and covered with a metallic bloom the following year, ultimately nearly black. Bark of the trunk |'-1' thick, deeply and irregularly divided into broad flat ridges covered by large thin closely appressed light red-brown scales. Wood light, soft, not strong, coarse-grained, light yellow, with thick yellow or nearly white sapwood; occasionally used for fuel. The large edible seeds are gathered in large quantities and are eaten raw or roasted. Distribution. Only in a narrow belt a few miles long on the coast near the mouth of the Soledad River just north of San Diego, and on the island of Santa Rosa, Cali- fornia; the least widely distributed Pine-tree of the United States. 2. LARIX, Adans. Larch. Tall pyramidal trees, with thick sometimes furrowed scaly bark, heavy heartwood, thin pale sapwood, slender remote horizontal often pendulous branches, elongated leading branchlets, short thick spur-like lateral branchlets, and small subglobose buds, their inner scales accrescent and marking the lateral branchlets with promi- CONIFERS 35 nent ring-like scars. Leaves awl-shaped, triangular and rounded above, or rarely 4-angled, spirally disposed and remote on leading shoots, on lateral branchlets in crowded fascicles, each leaf in the axil of a deciduous bud-scale, deciduous. Flowers solitary, terminal, the staminate globose, oval or oblong, sessile or stalked, on leaf- less branches, yellow, composed of numerous spirally arranged anthers with connec- tives produced above them into short points, the pistillate appearing with the leaves, subglobose, composed of few or many green nearly orbicular stalked scales in the axes of much longer mucronate usually scarlet bracts. Fruit a woody ovoid-oblong conical or subglobose short-stalked cone composed of slightly thickened suborbicular or oblong-obovate concave scales, shorter or longer than their bracts, gradually de- creasing from the centre to the ends of the cone, the small scales usually sterile. Seeds nearly triangular, rounded on the sides, shorter than their wings; the outer seed-coat crustaceous, light brown, the inner membranaceous, pale chestnut-brown and lustrous; cotyledons usually 6, much shorter than the inferior radicle. Larix is widely distributed over the northern and mountainous region of the north- ern hemisphere from the Arctic Circle to the mountains of Pennsylvania and Oregon in the Xevr World, and to central Europe, the Himalayas, central China, and Japan in the Old World. Nine species are recognized. Of the exotic species the European Larix Larix, Karst., has been much planted for timber and ornament in the northeast- ern states, where the Japanese Larix Kcempferi, Sarg., also flourishes. Larix is the classical name of the Larch-tree. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Cones small, subglobose ; their scales few, longer than the bracts. Leaves triang-ular. 1. L. Americana (A B, F). Cones elongated ; their scales numerous, shorter than the bracts. Young branchlets pubescent, soon becoming glabrous ; leaves triangular. 2. L. occidentalis (B, G). Young branchlets tomentose ; leaves 4-angled. 3. L. Lyallii (B, F). 1. Larix Americana, Michx. Tamarack. Larch. Leaves linear, triangular, rounded above, prominently keeled on the lower surface, f'-iy long, bright green, conspicuously stomatiferoiis when they first appear; turn- ing yellow and falling in September or October. Flowers : staminate subglobose and sessile, pale yellow ; pistillate oblong, with light-colored bracts produced into elongated green tips, and nearly orbicular rose-red scales. Fruit on stout incurved stems, oblong, rather obtuse, I'-f long, composed of about 20 scales slightly erose on their nearly entire margins, rather longer than broad and twice as long as their bracts, bright chestnut-brown at maturity, usually falling during their second year; seeds \' long, about one third as long as their light chestnut-brown wings broadest near the middle and obliquely rounded at the apex. A tree, 50°-60° high, with a trunk 18'-20' in diameter, small horizontal branches forming during the early life of the tree a narrow regular pyramidal head always characteristic of this tree when crowded in the forest, or with abundant space sweep- ing out in graceful curves, often becoming contorted and pendulous and forming a broad open frequently picturesque head, and slender leading branchlets often covered at first with a glaucous bloom, becoming light orange-brown during their first win- ter and conspicuous from the small globose dark red lustrous buds. Bark of the trunk \'-^' thick, separating into thiu closely appressed rather bright reddish brown 36 TREES OF NORTH AMERICA scales. Wood heavy, hard, very strong, rather coarse-grained, very durable, light brown; largely used for the upper knees of small vessels, fence-posts, telegraph-poles, and railway-ties. Distribution. At the north often on well-drained uplands, southward in cold deep swamps which it often clothes with forests of closel}' crowded trees, from Labrador to the Arctic Circle, ranging west of the Rocky Mountains to latitude 65° 35' north, and southward through Canada and the northern states to northern Pennsylvania and Preston County, West Virginia, northern Indiana and Illinois, and central Minnesota, and along the eastern foothills of the Rocky Mountains to about latitude 53°; very abundant in the interior of Labrador, where it is the largest tree ; common along the margins of the barren lands stretching beyond the sub- Arctic forest to the shores of the Arctic Sea; attaining its largest size north of Lake Winnipeg on low benches which it occasionally covers with open forests; rare and local toward the southern limits of its range. Often planted as an ornamental tree in the northeastern states, growing rapidly and attaining in cultivation a large size and picturesque habit. 2. Larix occidentalis, Nutt. Tamarack. Leaves triangular, rounded on the back, conspicuously keeled below, rigid, sharp- pointed, I'-lf long, about ^' wide, light pale green, turning pale yellow early in the autumn. Flowers: staminate oblong, pale yellow; pistillate oblong, nearly ses- sile, with orbicular scales and bracts produced into elongated tips. Fruit oblong, short-stalked, I'-l-^' long, with numerous thin stiff scales nearly entire and some- times a little reflexed on their margins, much shorter than their bracts, more or less thickly coated on the lower surface below the middle with hoary tomentum, and standing after the escape of the seeds at right angles to the axis of the cone, or often becoming reflexed; seeds nearly y long, with a pale brown shell, one half to two thirds as long as the thin fragile pale wings broadest near the middle and obliquely rounded at the apex. A tree, sometimes 250° high, with a tall tapering naked trunk 6°-8° in diame- ter, or on dry soil and exposed mountain slopes usually not more than 100° tall, surmounted by a short narrow pyramidal head of small branches clothed with scanty CONIFERS 37 foliage, or occasionally by a, larger crown of elongated drooping branches, stout branchlets covered when they first appear with soft pale pubescence, usually soon glabrous, bright orange-brown in their first year, ultimately becoming dark gray- brown, and dark chestnut-brown winter-buds about ^' in diameter. Bark of young stems thin, dark-colored and scaly, becoming near the base of old trunks 5' or 6' thick and breaking into irregularly shaped oblong plates often 2° long and covered with thin closely appressed light cinnamon-red scales. "Wood very heavy, exceedingly hard and strong, close-grained, very durable in contact with the soil, bright light red, with thin nearly white sapwood; largely used for railway -ties and fence-posts, and manufactured into lumber used in cabinet-making and the interior finish of buildings. Distribution. Moist bottom-lands and on high benches and dry mountain sides generally at elevations between 2000° and 7000° above the sea-level, usually singly or p-ic, ^,S in small groves, through the basin of the upper Columbia River from southern British Columbia to the western slopes of the continental divide of northern Montana, and to the eastern slopes of the Cascade INIountains of Oregon; most abundant and of its largest size on the bottom-lands of streams flowing into Flat Head Lake in northern Montana, and in northern Idaho. Occasionally planted in the eastern states and in Europe, but in cultivation showing little promise of attaining a large size or becoming a valuable ornamental or timber- tree. 3. Larix Lyallii, Pari. Tamarack, Leaves 4-angled, rigid, short-pointed, pale blue-green, I'-l^' long. Plo"wers : staminate oblong, with pale yellow anthers; pistillate ovate- oblong, with dark red or occasionally pale yellow-green scales and dark purple bracts abruptly contracted into elongated slender tips. Fruit ovate, rather acute, 1^-2' long, subsessile or raised on slender stalks coated with hoary tomentum, with dark reddish purple or rarely green erose scales, fringed and covered on their lower surface with matted hairs and at maturity spreading nearly at right angles and finally much reflexed, much shorter than their dark purple very conspicuous long-tipped bracts; seeds full and rounded on the sides, ^' long and about half as long as their light red lustrous wings broadest near the base with nearly parallel sides. A tree, usually 40°-o0'^ but occasionally 75° high, with a trunk generally 18'-20' but rarely 3°-4° in diameter, and remote elongated exceedingly tough persistent 38 TREES OF NORTH AMERICA branches sometimes pendulous, developing very irregularly and often abruptly ascend- ing at the extremities, stout branchlets coated with hoary toinentum usually persist- ent until after their second winter, ultimately becoming nearly black, and prominent winter-buds with conspicuous long white matted hairs fringing the margins of their scales and often almost entirely covering the bud. Bark of young trees and of the branches thin, rather lustrous, smooth, and pale gray tinged with yellow, becoming loose and scaly on larger stems and on the large branches of old trees, and on fully grown trunks ^-f thick and slightly divided by shallow fissures into irregularly shaped plates covered by thin dark red-brown loosely attached scales. Wood heavy, hard, coarse-grained, light reddish brown. Distribution. Near the timber-line on mountain slopes at elevations of 4000°- 5200°, from southern Alberta on the eastern slope of the Rocky Mountains and the interior of southern British Columbia, southward along the Cascade Mountains of Pic^ (59 northern Washington to Mt. Stewart at the head of the north fork of the Yakima River, and along the continental divide to the middle fork of Sun River, forming here a forest of considerable size at elevations of 7000°-8000°, and to Pend d'Oreille Pass, iMontana. 3. PICEA, Link. Spruce. Pyramidal trees, with tall tapering trunks often stoutly buttressed at the base, thin scaly bark, soft pale wood containing numerous resin canals, slender whorled twice or thrice ramified branches, their ultimate divisions stout, glabrous or pubescent, and leaf-buds usually in 3's, the 2 lateral in the axils of upper leaves. Leaves linear, spirally disposed, extending out from the branch on all sides or occasionally appear- ing 2-ranked by the twisting of those on its lower side, mostly pointing to the end of the branch, entire, articulate on prominent persistent rhombic ultimately woody bases, keeled above and below, 4-sided and stomatiferous on the 4 sides, or flattened and stomatiferous on the upper or occasionally on the lower side, persistent from seven to ten years, deciduous in drying. Flowers terminal or in the axils of upper leaves, the staminate usually long-stalked, composed of numerous spirally arranged anthers with connectives produced into broad nearly circular toothed crests, the pis- tillate oblong, oval or cylindrical, with rounded or pointed scales, each in the axis of an accrescent bract shorter than the scale at maturity. Fruit an ovoid or oblong- CONIFERiE 39 cylindrical pendant cone, crowded on the upper branches or in some species scattered over the upper half of the tree. Seeds ovoid or oblong, usually acute at the base, much shorter than their wings ; outer seed-coat crustaceous, light or dark brown, the inner membranaceous, pale chestnut-brown ; cotyledons 4-15. Picea is widely distributed through the colder and temperate regions of the north- ern hemisphere, some species forming great forests on plains and high mountain slopes. Eighteen species are now recognized, ranging from the Arctic Circle to the slopes of the southern Appalachian Mountains and to those of northern New Mexico and Arizona in the New World, and to central and southeastern Europe, the Caucasus, the Himalayas, western China and Japan. Of exotic species the so-called Norway Spruce, Picea Abies, Karst., one of the most valuable timber-trees of Europe, has been largely planted for ornament and shelter in the eastern states, where the Cau- casian Picea orientalis, Carr., and some of the Japanese species also flourish. Picea was probably the classical name of the Spruce-tree. CONSPECTUS OF THE NORTH A31ERICAN SPECIES. Leaves 4-8idecl, -with stomata on the 4 sides. Cone-scales rounded at the apex. Cone-scales stiif and rigid at maturity ; branehlets pubescent. Cones ovate on strong-ly incurved stalks, persistent for many years, their scales erose or dentate ; leaves blue-^reen. 1. P. Mariana (A B, F). Cones ovate-oblong, early deciduous, their scales entire or denticulate ; leaves dark yellow-green. 2. P. rubens (A). Cone-scales soft and flexible at maturity ; branehlets glabrous. Cones oblong-cylindrical, slender, their scales entire ; leaves blue-green. 3. P. Canadensis (A B, F). Cone-scales oblong or rhoraboidal, narrowed to the truncate or acute apex ; leaves blue- green. Cones oblong-cylindrical or oval ; branehlets pubescent ; leaves soft and flexible. 4. P. Engelmanni (F, B, G). Cones oblong-cylindrical ; branehlets glabrous ; leaves rigid, spinescent. 5. P. Parryana (F). Leaves flattened, usually with stomata only on the upper surface. Cone-scales rounded, entire ; branehlets pubescent. Cones oblong-cylindrical, leaves obtuse, with stomata only on the upper svirface. 6. P. Breweriana (G). Cone-scales oblong-oval, rounded, denticulate above the middle ; branehlets glabrous. Cones cylindrical-ovoid, leaves acute or acuminate, with stomata occasionally on the lower surface. 7. P. Sitchensls (B, G). 1. Leaves 4-sided. * Cone-scales rounded at the apex, -i- Branehlets pubescent. 1. Picea Mariana, B., S. 8c P. Black Spruce. Leaves slightly incurved above the middle, abruptly contracted at the apex into short callous tips, pale blue-green and glaucous at maturity, \'-\' long, hoary on the upper surface from the broad bands of stomata, and lustrous and slightly stoma- tiferous on the lower surface. Flowers : staminate subglobose, with dark red anthers ; pistillate oblong-cylindrical, with obovate purple scales rounded above, and oblong purple glaucous bracts rounded and denticulate at the apex. Fruit ovate, 40 TREES OF NORTH AMERICA pointed, gradually narrowed at the base into short strongly incurved stalks, ^'-1^' long, with rigid puberulous scales rounded or rarely somewhat pointed at the apex and more or less erose on the notched pale margins, turning as they ripen dull gray- brown and becoming as the scales gradually open and slowly discharge their seeds almost globose ; sometimes remaining on the branches for twenty or thirty years, the oldest close to the base of the branches near the trunk ; seeds oblong, nar- rowed to the acute base, about ^' long, very dark brown, with delicate pale brown wings broadest above the middle, very oblique at the apex, about ^' long and ^' wide. A tree, usually 20°-30° and occasionally 100° high, with a trunk 6'-12' and rarely 3° in diameter, and comparatively short branches generally pendulous with upward curves, forming an open irregular crown, light green branchlets coated with pale pubescence, soon beginning to grow darker, and during their first winter light cinna- mon-brown and covered with short rusty pubescence, their thin brown bark gradu- ally becoming glabrous and beginning to break into small thin scales during their second year ; at the extreme north sometimes a low semiprostrate shrub ; fre- quently cone-bearing when only 2°-3° high. Winter-buds ovate, acute, light reddish brown, puberulous, about ^' long. Bark \'-^' thick and broken on the surface into thin rather closely appressed gray-brown scales. Wood light, soft, not strong, pale yellow-white, with thin sapwood; probably rarely used outside of Manitoba and Saskatchewan, except in the manufacture of paper pulp. Spruce-gum, the resinous exudations of the Spruce-trees of northeastern America, is gathered in considerable quantities principally in northern New England and Canada, and is used as a mas- ticatory. Spruce-beer is made by boiling the branches of the Black and Red Spruces. Distribution. At the north on well-drained bottom-lands and the slopes of barren stony hills, and southward in sphagnum-covered bogs, swamps and on their borders, from Labrador to the valley of the Mackenzie River in about latitude 65° north, and, crossing the Rocky Mountains, through the interior of Alaska to the valley of White River ; southward through Newfoundland, the maritime provinces, eastern Canada and the northeastern United States to Pennsylvania, and along the Alleghan^^Moun- tains to northern Virginia; and from the eastern foothills of the Rocky Mountains in Alberta, through Assiniboia, northern Saskatchewan and northern Manitoba, to central Wisconsin and Michigan ; very abundant at the far north and the largest coniferous tree of Saskatchewan and northern Manitoba, covering here large areas CONIFERS 41 and growing to its largest size ; common in Newfoundland and all the provinces of eastern Canada except southern Ontario ; in the United States less abundant and usually only in cold sphagnum swamps. Occasionally planted as an ornamental tree, the Black Spruce is short-lived in cul- tivation and one of the least desirable of all Spruce-trees for the decoration of parks and gardens. 2. Picea rubens, Sarg. Red Spruce. Leaves more or less incurved above the middle, acute or rounded and furnished at the apex with short callous points, dark green often slightly tinged with yel- low, very lustrous, marked on the upper surface by 4 rows of stomata and on the lower less conspicu- ously by 2 rows of stomata on each side of the prominent mid- rib, ^'— I' long, nearly ^ig' wide. Flowers: staminate oval, al- most sessile, bright red; pistillate ob- long-cylindrical, with thin rounded scales reflexed and slightly erose on their margins, and obovate bracts rounded and lacini- ate above. Fruit on very short straight or incurved stalks, ovate-oblong, gradually narrowed from near the middle to the acute apex, 1^-2' long, with rigid puberu- lous scales entire or slightly toothed at the apex ; bright green or green somewhat tinged with purple when fully grown, becoming light reddish brown and lustrous at maturity, beginning to fall as soon as the scales open in the autumn or early winter, and generally disappearing from the branches the following summer ; seeds dark brown, about ^' long, with short broad wings full and rounded above the middle. A tree, usually 70°-80° and occasionally 100° high, with a trunk 2°-3° in dia- meter, branches long-persistent on the stem and clothing it to the ground, forming a narrow rather conical head, or soon disappearing below from trees crowded in the forest, stout pubescent light green branchlets, becoming bright reddish brown or orange-brown during their first winter, glabrous the following year, and covered in their third or fourth year with scaly bark. Winter-buds ovate, acute, \'-^' long, with light reddish brown scales. Bark Y~k' thick, and broken into thin closely appressed irregularly shaped red-brown scales. Wood light, soft, close-grained, not strong, pale slightly tinged with red, with paler sap wood usually about 2' thick; largely manufactured into lumber in the northeastern states, Pennsylvania, and western Virginia, and used for the flooring and construction of houses, for the sounding-boards of musical instruments, and in the manufacture of paper pulp. Distribution. Well-drained uplands and mountain slopes, often forming a large part of extensive forests, from Prince Edward Island and the valley of the St. Lawrence southward to the coast of Massachusetts, along the interior hilly part of 42 TREES OF NORTH AMERICA New England and New York, and the Alleghany Mountains to the high peaks of North Carolina. Occasionally planted in the eastern states and in Europe as an ornamental tree, but growing in cultivation more slowly than any other Spruce-tree. -H — hBranchlets glabrous. 3. Picea Canadensis, B., S. & P. • White Spruce. Leaves crowded on the upper side of the branches by the twisting of those on the lower side, i-sided, incurved, acute or acuminate and terminating in rigid callous tips, pale blue and hoary when they first appear, becoming dark blue-green or pale blue, marked on each of the 4 sides by 3 or 4 rows of stomata, ^-f long. Flowers: staminate pale red, soon appearing yellow from the thick covering of pollen ; pis- tillate oblong-cylindrical, with round nearly entire pale red or yellow-green scales, broader than long, and nearly orbicular denticulate bracts. Fruit nearly sessile or borne on short thin straight stems, oblong-cylindrical, slender, slightly narrowed to the ends, rather obtuse at the apex, usually about 2' long, pale green sometimes tinged with red when fully grown, becom- ing at maturity pale brown and lustrous, with nearly orbicu- lar scales, rounded, truncate, and slight- ly emarginate, or rarely narrowed at the apex, and very thin, flexible and elastic at maturity, usually deciduous in the autumn or dur- ing the following winter; seeds about i' long, pale brown, with narrow wings gradually widened from the base to above the middle and very oblique at the apex. A tree, with disagreeable smelling foliage, sometimes 150° higU, with a trunk 3°-4° in diameter, but east of the Rocky Mountains and especially toward the south- eastern limits of its range rarely more than 60°-70° tall, with a trunk not more than 2° in diameter, long comparatively thick branches densely clothed with stout rigid laterals sweeping out in graceful upward curves, and forming a broad-based rather open pyramid often obtuse at the apex, stout glabrous branchlets orange- brown during their first autumn and winter, gradually growing darker grayish brown. Winter-buds broadly ovate, obtuse, covered by light chestnut-brown scales with thin often refiexed ciliate margins. Bark I'-i' thick, separating irregularly into thin plate-like light gray scales more or less tinged with brown on the surface. Wood light, soft, not strong, straight-grained, light yellow, with hardly distinguish- able sap wood; manufactured into lumber in the eastern provinces of Canada and in Alaska, and used in construction, for the interior finish of buildings, and for paper pulp. Distribution. Banks and borders of streams and lakes, ocean cliffs, and in the ri^ 42 CONIFERJE 43 north the rocky slopes of low hills, from Labrador along the northern frontier of the forest nearly to the shores of the Arctic Sea, reaching Behring Strait in 66° 44' north latitude, and southward down the Atlantic coast to southern Maine, northern New Hampshire, Vermont, and New York, northern Michigan and Wisconsin, the Black Hills of Dakota, and through the interior of Alaska and along the Rocky Mountains to northern Montana. Often planted in Canada, northern New England, and northern Europe as an ornamental tree; southward suffering from heat and dryness. ** Cone-scales oblong or rhomhoidal. -*-Branchlets pubescent. 4. Picea Engelmanni, Engelm. White Spruce. Engelmann Spruce. Leaves soft and flexible, with acute callous tips, slender nearly straight or slightly incurved on vigorous sterile branches, stouter shorter and more incurved, on fer- piC, 45 tile branches, l'-l|^' long? marked on each face bj^ 3-5 rows of stomata, covered at first with a glaucous bloom, soon becoming dark blue-green or pale steel-blue. Flo"wers : staminate dark purple; pistillate bright scarlet, with pointed or rounded and more or less divided scales, and oblong bracts rounded or acute or acuminate and denticulate at the apex or obovate-oblong and abruptly acuminate. Fruit oblong-cylindrical, oval, gradually narrowed to the ends, usually about 2' long, sessile or very short-stalked, produced in great numbers on the upper branches, hori- zontal and ultimately pendulous, light green somewhat tinged with scarlet when fully grown, becoming light chestnut-brown and lustrous, with thin flexible slightly concave scales, generally erose-dentate or rarely almost entire on the margins, usually broadest at the middle, wedge-shaped below, and gradually contracted above into a truncate or acute apex, or occasionally obovate and rounded above; mostly deciduous in the autumn or early in their first winter soon after the escape of the seeds ; seeds obtuse at the base, nearly black, about ^ long and much shorter than their broad very oblique wings. A tree, with disagreeable smelling foliage, often 150° high, with a trunk 4°-5° in diameter, spreading branches produced in regular whorls and forming a narrow compact pyramidal head, gracefully hanging short lateral branches, and compara- tively slender branchlets pubescent for three or four years, light or dark orange- 44 TREES OF NORTH AMERICA brown or gray tinged with brown during their first winter, their bark beginning to separate into small flaky scales in their fourth or fifth year. Winter-buds coni- cal or slightly obtuse, with pale chestnut-brown scales scarious and often free and sliglitly reflexed on the margins. Bark of the trunk ^'— |' thick, light cinnamon-red, and broken into large thin loose scales. "Wood light, soft, not strong, close-grained, pale yellow tinged with red, with thick hardly distinguishable sapwood; largely manu- factured into lumber used for the construction of buildings; also employed for fuel and charcoal. The bark is sometimes em])loyed in tanning leather. Distribution. High mountain slopes, often forming great forests from the moun- tains of Alberta and British Columbia, southward over the interior mountain sys- tems of the continent to northern New Mexico and Arizona, from elevations of 5000° at the north up to 11,500° at the south, and westward through Montana and Idaho to the Cascade Mountains of Washington and Oregon; attaining its greatest size and beauty north of the northern boundary of the United States. Occasionally planted as an ornamental tree in the New England states and north- ern Europe, where it grows vigorously and promises to attain a large size; usually injured in western Europe by spring frosts. —I — i-Branchlets glabrous. 5. Picea Parryana, Sarg. Blue Spruce. Leaves strongly incurved, especially those on the upper side of the branch, stout, rigid, acuminate and tipped with long callous sharp points, 1 -1|' long on sterile branches, often not more than half as long on the fertile branches of old trees, marked on each side by 4-7 rows of sto- mata, dull bluish green on some individuals and light or dark steel-blue or silvery white on oth- ers, the blue colors grad- ually changing to dull blue-green at the end of three or four years. Flo^wers: staminate yel- low tinged with red ; pis- tillate with broad oblong or slightly obovate pale green scales truncate or slightly emarginate at the denticulate apex, and acute bracts. Fruit produced on the upper third of the tree, sessile or short-stalked, oblong- cylindrical, slightly narrowed at the ends, usually about 3' long, green more or less tinged with red when fully grown at midsummer, becoming pale chestnut-brown and lustrous, with flat tough rhomboidal scales flexuose on the margins, and acute, rounded, or truncate at the elongated erose apex ; seeds ^' long or about half the length of their wings, gradually widening to above the middle and full and rounded at the apex. A tree, usually 800-100° or occasionally 150° high, with a trunk rarely 3° in dia- CONIFERS 45 meter and occasionally divided into 3 or 4 stout secondary stems, rigid horizontal branches disposed on young trees in remote whorls and decreasing regularly in length from below upward, the short stout stiff branchlets pointing forward and making flat-topped masses of foliage, on old trees short and remote, with stout pendant lateral branches forming a thin ragged pyramidal crown and stout rigid glabrous branchlets, pale glaucous green, becoming bright orange-brown during the first winter and ultimately light grayish brown. Winter-buds stout, obtuse or rarely acute, \'-^' long, with thin pale chestnut-brown scales usually reflexed on the mar- gins. Bark of young trees gray or gray tinged with cinnamon-red and broken into small oblong plate-like scales, becoming on the lower part of old trunks f'-l^' thick and deeply divided into broad rounded ridges covered with small closely ap- pressed pale gray or occasionally bright cinnamon-red scales. Wood light, soft, close-grained, weak, pale brown or often nearly white, with hardly distinguishable sapwood. Distribution. Banks of streams or on the first benches above them singly or in small groves at elevations between 6500° and 10,000° above the sea; Colorado and eastern Utah northward to the Wind River Mountains of Wyoming. Often planted as an ornamental tree in the eastern and northern states and in western and northern Europe, especially individuals with blue foliage; very beauti- ful in early life but in cultivation soon becoming unsightly from the loss of the lower branches. 2. Leaves flattened. * Cone-scales rounded at the apex. 6. Picea Breweriana, Wats. Weeping Spruce. Leaves abruptly narrowed and obtuse at the apex, straight or slightly incurved, rounded and obscurely ridged and dark green and lustrous on the lower surface, flat- tened and conspicuously marked on the upper surface by 4 or 5 rows of stomata on each side of the prominent midrib, f '-1|^' long, Jg'- ■^-^' wide. Flowers : staminate dark purple; pistillate oblong-cylindrical, with obovate scales rounded above and re- flexed on the entire margins and oblong bracts laciniately divided at their rounded or acute apex. Fruit oblong, gradually narrowed from the middle to the ends, acute 46 TREES OF NORTH AMERICA at the apex, rather oblique at the base, suspended on straight slender stalks, deep rich purple or green more or less tinged with purple wiien fully grown, becoming light orange-brown, 2'-4' long, with thin broadly ovate Hat scales longer than broad, rounded at the apex, opening late in the autumn after the escape of the seeds, often becoming strongly reflexed and very flexible; usually remaining on the branches until the second winter; seeds acute at the base, full and rounded on the sides, ^' long, dark brown, and about one quarter the length of their wings broadest toward the full and rounded apex. A tree, usually 80°-100° high, with a trunk 2°-3° in diameter above the swell- ing of its enlarged and gradually tapering base, and furnished to the ground with crowded branches, those at the top of the tree short and slightly ascending, with com- paratively short pendulous lateral branches, those lower on the tree horizontal or pendulous and clothed with slender flexible whip-like laterals often 7°-8° long and not more than ^ thick and furnished with numerous long thin lateral branchlets, their ultimate divisions slender, coated with fine pubescence persistent until their third season, bright red-brown during their first winter, gradually growing dark gray-brown. Winter-buds conical, light chestnut-brown, ^' long and ^' thick. Bark of the trunk |'-|' thick, broken into long thin closely appressed scales dull red-brown on the surface. Wood heavy, soft, close-grained, light brown or nearly white, with thick hardly distinguishable sapwood. Distribution. Dry mountain ridges and peaks near the timber-line on both slopes of the Siskiyou Mountains on the boundary between California and Oregon, forming small groves at elevations of about 7000° above the sea; on a high peak west of Marble Mountain in Siskiyou County, California; on the Oregon coast ranges at the head- waters of the Illinois River at elevations of 4000°-5000°. *^ Cone-scales oblong-oval, denticulate above the middle. 7. Picea Sitchensis, Carr. Tideland Spruce. Sitka Spruce. Leaves standing out from all sides of the branches and often nearly at right angles to them, frequently bringing their white upper surface to view by a twist at their base, straight or slightly incurved, acute or acuminate, with long callous tips slightly rounded, green, lustrous, and occasionally marked on the lower surface with 2 or 3 rows of small conspicuous stomata on each side of the prominent midrib, flattened, obscurely ridged and almost covered with broad silvery white bands of numerous rows of stomata on the upper surface, ^-l^^' long and yb'-jV wide. Flo"wers : staminate at the ends of the pendant lateral branchlets, dark red ; pistil- late on rigid terminal shoots of the branches of the upper half of the tree, with nearly orbicular denticulate scales, often slightly truncate above and completely hidden by their elongated acuminate bracts. Fruit cylindrical-oval, short-stalked, yellow-green often tinged with dark red when fully grown, becoming lustrous and pale yellow or reddish brown, 2^'-4' long, with thin stiff oblong-oval scales rounded toward the apex, denticulate above the middle, and nearly twice as long as their lan- ceolate denticulate bracts, deciduous mostly during their first autumn and winter; seeds full and rounded, acute at the base, pale reddish brown, about \' long, with narrow oblong slightly oblique wings \'-\' in length. A tree, usually about 100° high, with a conspicuously tapering trunk often 3° - 4° in diameter above its strongly buttressed and much-enlarged base, occasionally 200° tall, with a trunk 15° - 16° in diameter, horizontal branches forming an open CONIFERS 47 loose pyramid and on older trees clothed with slender pendant lateral branches frequently 2°-3° long, and stout rigid glabrous brauchlets pale green at first, becoming dark or light orange-brown during their first autumn and winter and finally dark gray - brown ; at the extreme northwestern limits of its range occa- sionally reduced to a low shrub. Winter- buds ovate, acute, or conical, ^'-|' long, with pale chestnut - brown acute scales, often tipped with short points and more or less reflexed above the mid- dle. Bark y-|' thick and broken on the surface into large thin loosely attached dark red-brown or on young trees sometimes bright cinnamon-red scales. Wood light, soft, not strong, straight-grained, light brown tinged with red, with thick nearly white sapwood; largely manufactured into lumber used in the interior finish of buildings, for fencing, boat-building, cooperage, wooden-ware, and packing-cases. Distribution. Moist sandy, often swampy soil, or less frequently at the far north on wet rocky slopes, from the eastern end of Kadiak Island southward through the coast region of Alaska, British Columbia, Washington, and Oregon to Mendocino County, California. Often planted in western and central Europe and occasionally in the middle Atlan- tic states as an ornamental tree. pic, 4-6 4. TSUGA, Carr. Hemlock. Tall pyramidal trees, with deeply furrowed astringent bark bright cinnamon-red except on the surface, soft pale wood, nodding leading shoots, slender scattered hori- zontal often pendulous branches, the secondary branches three or four times irregu- larly pimiately ramified, with slender round glabrous or pubescent ultimate divisions, the whole forming graceful pendant masses of foliage, and minute winter-buds. Leaves flat or angular, obtuse and often emarginate or acute at the apex, spirally disposed, usually appearing almost 2-ranked by the twisting of their petioles, those on the upper side of the branch then much shorter than the others, abruptly nar- rowed into short petioles jointed on ultimately woody persistent bases, with stomata on the lower surface ; on one species not 2-ranked, and of nearly equal length, with stomata on both surfaces. Flowers solitarv, the staminate in the axils of leaves of the previous year, globose, composed of numerous subglobose anthers, with connec- tives produced into short gland-like tips, the pistillate terminal, erect, with nearly circular scales slightly longer or shorter than their membranaceous bracts. Fruit an ovate-oblong, oval, or oblong-cylindrical obtuse usually pendulous nearly sessile green or rarely purple cone becoming light or dark reddish brown, with concave sub- orbicular or ovate-oblong scales thin and entire on the margins, much longer than 48 TREES OF NORTH AMERICA their minute bracts, persistent on the axis of the cone after the escape of the seeds. Seeds furnished with resin-vesicles, ovate-oblong, compressed, nearly surrounded by their much longer obovate-oblong wings; outer seed-coat crustaccous, light brown, the inner membranaceous, pale chestnut-brown, and lustrous ; cotyledons 3-G, much shorter than the inferior radicle. Tsuga is confined to temperate North America, Japan, central and western China, and the Himalayas ; seven species have been distinguished. Tsuga is the Japanese name of the Ilendock-tree. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Leaves flat, obtuse or emarginate at the apex, with stomata only on the lower surface ; cones ovate-oblong' or oval. Cones stalked. Cone-scales orbicular-oblong, about as wide as long, their bracts broad and truncate. 1. T. Canadensis (A). Cone-scales oblong, much longer than wide, their bracts obtusely pointed. 2. T. Caroliniana (A). Cones sessile. Cone-scales oblong, longer than broad, often abruptly contracted near the middle, their bracts gradually narrowed to an obtuse point. 3. T. heterophylla (B, F, G). Leaves convex or keeled above, bluntly pointed, with stomata on both surfaces ; cones ob- long-cyndrical. Cone-scales oblong-obovate, longer than broad, much longer than their acuminate short-pointed bracts. 4. T. Mertensiana (B, F, G). 1. Tsuga Canadensis, Carr. Hemlock. Leaves oblong, rounded and rarely emarginate at the apex, dark yellow-green, lustrous and obscurely grooved especially toward the base on the upper surface, marked on the lower surface by 5 or 6 rows of stomata on each side of the low broad midrib, y— |' long, about ^q' wide, deciduous in their third season from dark orange-colored persistent bases. Flo'wers : staminate light yellow ; pistillate pale green, with broad bracts coarsely laciniate on the margins and shorter than their scales. Fruit on slender puberulous stalks often |' long, ovate-oblong, acute, ^'-f long, with orbicular oblong scales almost as wide as long, and broad truncate bracts slightly laciniate on the margins, opening and gradually losing their seeds during the winter and mostly persistent on the branches until the following spring ; seeds ^^g' long, usually with 2 or 3 large oil-vesicles, nearly half as long as their wings broad at the base and gradually tapering to the rounded apex. A tree, usually 60°-70°, and occasionally 100° high, with a trunk 2°-4° in diame- ter, gradually and conspicuously tapering toward the apex, long slender horizontal or pendulous branches, persistent until overshadowed by other trees and forming a broad-based rather obtuse pyramid, and slender light yellow-brown pubescent branchlets, growing darker during their first winter and glabrous and dark red- brown tinged with purple in their third season. Winter-buds obtuse, light chest- nut-brown, slightly puberulous, about ^Ig' long. Bark of the trunk ^'-f thick, deeply divided into narrow rounded ridges covered with thick closely appressed scales varying from cinnamon-red to gray more or less tinged with purple. Wood light, soft, not strong, brittle, coarse-grained, difficult to work, liable to wind-shake and splinter, not durable when exposed to the air, light brown tinged with red, with thin CONIFERiE 49 somewhat darker sapwood; largely manufactured iuto coarse lumber employed for the outside finish of buildings. The astringent inner bark affords the largest part of the material used in the northeastern states and Canada in tanning leather. From the young branches oil of hemlock is distilled. Distribution. Scattered through upland forests and often covering the northern slopes of rocky ridges and the steep rocky banks of narrow river-gorges from Nova Scotia to eastern Minnesota, and southward through the northern states to New- castle County, Delaware, southern Michigan, southwestern Wisconsin, and along the Appalachian Mountains to northwestern Alabama; most abundant and frequently ric, 1X1 an important element of the forest in New England, northern New York, and west- ern Pennsylvania; attaining its largest size near streams on the slopes of the high mountains of North Carolina and Tennessee. Largely cultivated with numerous seminal varieties as an ornamental tree in the northern states, and in western and central Europe. 2. Tsuga Caroliniana, Engelm. Hemlock. Leaves retuse or often emarginate at the apex, dark green, lustrous and conspic- uously grooved on the upper surface, marked on the lower surface by a band of 7 or 8 rows of stomata on each side of the midrib, ^-f ' long, about ^ wide, decidu- ous from the orange-red bases during their fifth year. Flowers: staminate tinged with purple; pistillate purple, with broadly ovate bracts, scarious and erose on the margins and about as long as their scales. Fruit on short stout stalks, oblong, I'-l^' long, with oblong scales gradually narrowed and rounded at the apex, rather abruptly contracted at the base into distinct stipes, thin, concave, puberulous on the outer surface, twice as long as their broad pale bracts, spreading nearly at right angles to the axis of the cone at maturity, their bracts rather longer than wide, wedge-shaped, pale, nearly truncate or slightly pointed at the broad apex ; seeds 1' long, with numerous small oil-vescicles on the lower side, and one quarter as long as the pale lustrous wings broad or narrow at the base and narrowed to the rounded apex. A tree, usually 40°-50°, or occasionally 70° high, with a trunk rarely exceeding 2° in diameter, short stout often pendulous branches forming a handsome compact pyramidal head, and slender light orange-brown pubescent branchlets, usually becoming glabrous and dull brown more or less tinged with orange during their 50 TREES OF NORTH AMERICA third year. Winter-buds obtuse, dark chestnut-brown, pubescent, nearly ^' long. Bark of the trunk f -1;^' thick, red-brown, and deeply divided into broad flat con- nected ridges cov- ered with thin closely appressed plate-like scales. "Wood light, soft, not strong, brit- tle, coarse-grained, pale brown tinged with red, with thin nearly white sap- wood. D is tribution. Rocky banks of streams usually at elevations between 2500° and 3000° on the Blue Ridge from southwestern Virginia to northern Georgia, generally singly or in small scattered groves of a few individuals. Often planted as an ornamental tree in the northern states, and occasionally in western Europe. 3. Tsuga heterophylla, Sarg. Hemlock. ' Leaves rounded at the apex, conspicuously grooved, dark green and very lus- trous on the upper surface, marked below by broad white bands of 7-9 rows of stomata, abruptly contracted at the base into slender petioles, ^'-f long and -^-\^ wide. Flowers: staminate yellow; pistillate purple and puberulous, witli broad bracts gradually narrowed to an obtuse point and shorter than their broadly ovate Piq ^9 slightly scarious scales. Fruit oblong-oval, acute, sessile, f '-1' long, with slightly puberulous scales longer than broad, often abruptly narrowed near the middle, and CONIFERS 51 tlark purple puberulous bracts rounded and abruptly contracted at the apex; seeds y long, with occasional oil- vesicles, one third to one half as long as their narrow- wings. A tree, frequently 200" high, with a tall trunk 6°-10° in diameter, and short slender usually pendulous branches forming a narrow pyramidal head, and slender pale yellow-brown branchlets ultimately becoming dark reddish brown, coated at first with long pale hairs, and pubescent or puberulous for five or six years. Win- ter-buds ovate, bright chestnut-brown, about -^q' long. Bark on young trunks thin, dark orange-brown, and separated by shallow fissures into narrow flat plates broken into delicate scales, becoming on fully grown trees I'-l^' thick and deeply divided into broad flat connected ridges covered with closely appressed brown scales more or less tinged with cinnamon-red. Wood light, hard and tough, pale brown tinged with yellow, with thin nearly white sapwood ; stronger and more durable than the wood of the other American hemlocks; now largely manufactured into lumber used principally in the construction of buildings. The bark is used in large quantities in tanning leather; from the inner bark the Indians of Alaska obtain one of their principal articles of vegetable food. Distribution. Southeastern Alaska, southward near the coast to Marin County, California, extending eastward over the mountains of southern British Columbia, northern Wasliington and Idaho, to the western slopes of the continental divide, and through Oregon to the western slopes of the Cascade Mountains, sometimes ascend- ing in the interior to elevations of 6000° above the sea ; most abundant and of its largest size on the coast of Washington and Oregon; often forming a large part of the forests of the northwest coast. Frequently planted as an ornamental tree in temperate Europe. 4. Tsuga Mertensiana, Sarg. Mountain Hemlock. Patton Spruce. Leaves standing out from all sides of the branch, remote on leading shoots and crowded on short lateral branchlets, rounded and occasionally obscurely grooved or on young plants sometimes conspicuously grooved on the upper surface, rounded and slightly ribbed on the lower surface, bluntly pointed, often more or less curved, stomatiferous above and below, with about 8 rows of stomata on each surface, light bluish green or on some individuals pale blue, t^'-l' long, about ^-^' wide, abruptly 52 TKEES OF NORTH AMERICA narrowed into nearly straight or slightly twisted petioles articulate on bases as long or rather longer than the petioles, irregularly deciduous during their third and fourth years. Flo"wers : staniinate borne on slender pubescent drooping stems, violet- purple; pistillate erect, with delicate lustrous dark purple or yellow-green bracts gradually narrowed above into slender often slightly reflexed tips and much longer than their scales. Fruit sessile, cylindrical-oblong, narrowed toward the blunt apex and somewhat toward the base, erect until more than half grown, pendulous or rarely erect at maturity, |'-3' long, with thin delicate scales usually as broad as long, and gradually contracted from above the middle to the wedge-shaped base, rounded at the slightly thickened more or less erose margins, puberulous on the outer surface, usually bright bluish purple or occasionally pale yellow-green, four or five times as long as their short-pointed dark purple or brown bracts ; seeds light brown, ^ long, often marked on the surface next their scales with 1 or 2 large resin-vesicles, with wings nearly ^' long, broadest above the middle, gradually narrowed below, slightly or not at all oblique at the rounded apex. A tree, usually 70°-100° but occasionally 150° high, with a slightly tapering trunk 4°-5° in diameter, gracefully pendant slender branches furnished with drooping frond-like lateral branches, their ultimate divisions erect and forming an open pyramid surmounted by the long drooping leading shoots, and thin flexible or some- times stout rigid branchlets light reddish brown and covered for two or three years with short pale dense pubescence, becoming grayish brown and very scaly. Winter- buds acute, about ^' long, the scales of the outer ranks furnished on the back with conspicuous midribs produced into slender deciduous awl-like tips. Bark of the trunk I'-iy thick, deeply divided into connected rounded ridges broken into thin closely appressed dark cinnamon scales shaded with blue or purple. "Wood light, soft, not strong, close-grained, pale brown or red, with thin nearly white sapwood; occasionally manufactured into lumber. Distribution. Exposed ridges and slopes at high altitudes along the upper border of the forest from southeastern Alaska, southward over the mountain ranges of British Columbia to the Olympic Mountains of Washington, and eastward to the western slopes of the Selkirk Mountains in the interior of southern British Colum- bia, northern Montana, northern Idaho, the Powder River Mountains, and along the Cascade Mountains of Washington and Oregon, on the mountain ranges of northern California, and along the Sierra Nevada to the canon of the south fork of King's River, California; in Alaska occasionally descending to the sea-level, and toward the southern limits of its range often ascending to elevations of 10,000°. Often planted as an ornamental tree in western and central Europe, and rarely in the eastern United States. 5. PSEUDOTSUGA, Carr. Pyramidal trees, with thick deeply furrowed bark, hard strong wood, with spirally marked wood-cells, slender usually horizontal irregularly whorled branches clothed with slender spreading lateral branches forming broad flat-topped masses of foliage, ovate acute leaf-buds, the lateral buds in the axils of upper leaves, their inner scales accrescent and marking the branchlets with ring-like scars. Leaves linear, flat, rounded and obtuse or acuminate at the apex, straight or incurved, grooved on the upper side, marked on the lower side by numerous rows of stomata on each side of the prominent midrib, spreading nearly at right angles with the branch. Flowers CONIFERS 53 solitary, the staminate axillary, scattered along the branches, oblong-cylindrical, with numerous globose anthers, their connectives terminating in short spurs, the pis- tillate terminal or in the axils of upper leaves, composed of spirally arranged ovate rounded scales much shorter than their acutely 2-lobed bracts, with midribs pro- duced into elongated slender tips. Fruit an ovate-oblong acute pendulous cone maturing in one season, with rounded concave rigid scales persistent on the axis of the cone after the escape of the seeds, and becoming dark red-brown, much shorter than the 2-lobed bracts with midribs ending in rigid woody linear awns, those at the base of the cone without scales and becoming linear-lanceolate by the gradual sup- pression of their lobes. Seeds nearly triangular, full, rounded and dark-colored on the upper side and pale on the lower side, shorter than their oblong wings infolding the upper side of the seeds in a dark covering; outer seed-coat thick and crusta- ceous, the inner thin and membranaceous; cotyledons 6-12, much shorter than the inferior radicle. Pseud otsuga is confined to western North America and Japan. Three species are recognized. Pseudotsuga, a barbarous combination of a Greek with a Japanese word, indicates the relation of these trees with the Hemlocks. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Leaves usually rounded and obtuse at the apex, dark yellow-green or rarely blue-green ; cones small, their bracts much exserted. 1. P. mucronata (B, E, F, G, H), Leaves acuminate at the apex, bluish gray ; cones large, their bracts slig-htly exserted. 2. P. macrocarpa (G). 1. Pseudotsuga mucronata, Sudw. Douglas Spruce. Red Fir. Leaves straight or rarely slightly incurved, rounded and obtuse at the apex, or acute on leading shoots, |'-1^' long, Ye'-yV ^ic^^, dark yellow-green or rarely light or dark bluish green, usually persistent until their eighth year. Flo"wers : stami- nate orange-red ; pistillate with slender elongated bracts deeply tinged with red. Fruit pendant on long stout stems, 2'-4r^' long, with thin slightly concave scales rounded and occasionally somewhat elongated at the apex, usually rather longer than broad, when fully grown at midsummer slightly puberulous, dark blue-green below, purplish toward the apex, bright red on the closely appressed margins, and pale green bracts becoming slightly reflexed above the middle, j~i' wide, often extending ^' beyond the scales; seeds light reddish brown and lustrous above, pale and marked below with large irregular white spots, \' long, nearly ^' wide, almost as long as their dark brown wings broadest just below the middle, oblique above and rounded at the apex. A tree, often 200° high, with a trunk 3°-4° in diameter, frequently taller, with a trunk 10°-12° in diameter, but in the dry interior of the continent rarely more than 80°-100° high, with a trunk hardly exceeding 2°-3° in diameter, slender crowded branches densely clothed with long pendulous lateral branches, forming while the tree is young an open pyramid, soon deciduous from trees crowded in the forest, often leaving the trunk naked for two thirds of its length and surmounted by a compara- tively small narrow head sometimes becoming flap-topped by the lengthening of the upper branches, and slender branchlets pubescent for three or four years, pale orange color and lustrous during their first season, becoming bright reddish brown and ulti- mately dark gray-brown. Winter-buds ovate, acute, the terminal bud often ^' long 54 TREES OF NORTH AMERICA and nearly twice as large as the lateral buds. Bark on young trees smooth, thin, rather lustrous, dark gray-brown, usually becoming on old trunks 10'-12' thick, and divided into oblong plates broken into great broad rouuded and irregularly connected ridges separating on the surface into small thick closely appressed dark red-brown scales. Wood light red or yellow, with nearly white sap wood ; very variable in density, quality, and in the thickness of the sap wood; largely manufactured into lumber in British Columbia, western Washington and Oregon, and used for all kinds of con- struction, fuel, railway-ties, and piles. The bark is sometimes used in tanning leather. Distribution. From about latitude 55° north in the Rocky Mountains and from the head of the Skeena River in the coast range, southward through all the Rocky Moun- tain system to the mountains of western Texas, southern New Mexico and Arizona, and of northern Mexico, and from the eastern base of the Rocky Mountains to the Pacific coast, but absent from the arid mountains in the great basin between the Wahsatch and the Sierra Nevada ranges; most abundant and of its largest size near the sea-level in the coast region of southern British Columbia and of Washington and Oregon, and on the western foothills of the Cascade Mountains; ascending on the California Sierras to elevations of 5500° above the sea. Often planted for timber and ornament in temperate Europe, and for ornament in the eastern and northern states, where only the form from the interior of the con- tinent flourishes. 2. Pseudotsuga maorocarpa, Mayr. Hemlock. Leaves acute or acuminate, terminating in slender rigid callous tips, apparently 2-ranked by the conspicuous twist at their base, incurved above the middle, j-l\' long, about ^Ig' wide, dark bluish gray. Flowers : staminate pale yellow, inclosed for half their length in conspicuous involucres of the lustrous bud-scales; pistillate with pale green bracts tinged with red. Fruit produced on the upper branches and occasionally on those down to the middle of the tree, short-stalked, 4'-6y long, with scales near the middle of the cone l^'-2' across, stiff, thick, concave, rather broader than long, rounded above, abruptly wedge-shaped at the base, puberulous on the outer surface, often nearly as long as their comparatively short and narrow bracts with broad midribs produced into short flattened flexible tips; seeds full and rounded CONIFERS 55 on both sides, rugose, dark chestnut-brown or nearly black and lustrous above, pale reddish brown below, ^' long, -|' wide, with a thick brittle outer coat and wings broadest near the middle, about ^' long, nearly \' wide, and rounded at the apex. A tree, usually 40°-50° and rarely 80" high, with a trunk 3°-4° in diameter, remote elongated branches pendulous below, furnished with short stout pendant f'C, ^Z or often erect laterals forming an open broad-based symmetrical pyramidal head, slender branchlets dark reddish brown and pubescent during their first year, be- coming glabrous and dark or light orange-brown and ultimately gray-brown. "Win- ter-buds ovate, acute, usually not more than 1' long, often nearly as broad as long. Bark 3' -6' thick, dark reddish brown, deeply divided into broad rounded ridges covered with thick closely appressed scales. "Wood heavy, hard, strong^ close-grained, not durable; occasionally manufactured into lumber; largely used for fuel. Distribution. Steep rocky mountain slopes in southern California at elevations of 3000^-5000'^ above the sea, often forming open groves of considerable extent, from the Santa Inez Mountains in Santa Barbara County to the Cuyamaca Mountains. 6. ABIES, Link. Fir. Tall pyramidal trees, with bark containing numerous resin-vesicles, smooth, pale, and thin on young trees, often thick and deeply furrowed in old age, pale and usually brittle wood, slender horizontal wide-spreading branches in regular remote 4 or 5-branched whorls, clothed with twice or thrice forked lateral branches forming flat- topped masses of foliage gradually narrowed from the base to the apex of the branch, the ultimate divisions stout, glabrous, or pubescent, and small globose or oblong win- ter branch-buds usually thickly covered with resin, or in one species large and acute, with thin loosely imbricated scales. Leaves linear, sessile, on young plants and on lower sterile branches flattened and mostly grooved on the upper side, or in one species 4-sided, rounded and usually emarginate at the apex, appearing 2-ranked by a twist near their base or occasionally spreading from all sides of the branch, only rarely stomatiferous above, on upper fertile branches and leading shoots usually crowded, more or less erect, often incurved or falcate, thick, convex on the upper side, or quadrangular in some species and then obtuse, and acute at the apex and 56 TREES OF NORTH AMERICA frequently stomatiferous above; persistent usually for eight or ten years, in fallin"' leaving small circular scars. Flowers axillary, from buds formed the previous sea- son on branchlets of the year, surrounded at the base by conspicuous involucres of enlarged bud-scales, the staminate very abundant on the lower side of branches above the middle of the tree, oval or oblong-cylindrical, with yellow or scarlet anthers sur- mounted by short knob-like projections, the pistillate usually on the upper side only of the topmost branches, or in some species scattered also over the up])er half of the tree, erect, globose, ovoid or oblong, their scales imbricated in many series, obovate, rounded above, cuneate below, much shorter than their acute or dilated mucronate bracts. Fruit an erect ovoid or oblong cylindrical cone, its scales closely imbricated, thin, incurved at the broad apex and generally narrowed below into long stipes, decreasing in size and sterile toward the end of the cone, falling at maturity with their bracts and seeds from the stout tapering axis of the cone long-persist- ent on the branch. Seeds furnished with large conspicuous resin-vesicles, ovoid or oblong, acute at the base, covered on the upper side and infolded below on the lower side by the base of their thin wings abruptly enlarged at the oblique apex; seed-coat thin, of 2 layers, the outer thick, coriaceous, the iitner membranaceous; cotyledons 4-10, much shorter than the inferior radicle. Abies is widely distributed in the New World from Labrador and the valley of the Athabasca River to the mountains of North Carolina, and from Alaska through the Pacific and Rocky Mountain regions to the highlands of Guatemala, and in the Old World from Siberia and the mountains of central Europe to southern Japan, central China, the Himalayas, Asia Minor, and the highlands of northern Africa. Twenty- five species are now recognized. Several exotic species are cultivated in the north- ern and eastern states; of these the best known and most successful as ornamental trees are Abies Nordmanniana, Spach, of the Caucasus, Ahies Cilicica, Carr., of Asia Minor, Abies Cephalonica, Loud., a native of Cephalonia, Abies Veitchi, Lindl., SLud Abies homolepis, S. & Z., of Japan, Abies Picea, Lindl., of the mountains of south- ern and central Europe, and Abies Pinsapo, Boiss., of the Spanish Sierra Nevada. Abies is the classical name of the Fir-tree. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Leaves flat and grooved above, with stomata on the lower and sometimes on the upper sur- face, rounded and often notched, or on fertile branches frequently acute at the apex. Leaves dark green and lustrous above, pale below. Cones purple. Bracts of the cone-scales much longer than their scales, reflexed. 1. A. Fraseri (A). Bracts of the cone-scales shorter or rarely slightly longer than their scales. 2. A. balsamea (A). Bracts of the cone-scales gradually narrowed into long slender tips half the length of their scales ; leaves crowded, silvery white below. 3. J^. amabilis (B, G). Cones green. Bracts of the cone-scales laciniate and short-pointed at the apex ; leaves conspicu- ously notched on fertile branches. 4. A. grandis (B, G). Leaves pale blue-green. Cones purple. Bracts of the cone-scales rounded, emarginate and long-pointed at the apex ; leaves obtusely pointed and occasionally notched, and on fertile branches thickened and acute- at the apex. 5. A. lasiocarpa (B, F, G). CONIFERS 57 Cones purple, green, or yellow. Bracts of the cone-scales short-pointed ; leaves more or less erect by the twist at their base, on fertile branches often falcate, thickened and keeled above. G. A. concolor (F, G, H). Bracts of the cone-scales produced into elongated rigid, flat tips many times longer than the obtusely pointed scales ; leaves acuminate, dark yellow-green above, white below, similar on sterile and fertile branches ; winter-buds large, with thin loosely imbricated scales. 7. A. venusta (G). Leaves often 4-sided, blue-green, usually glaucous, with stomata on all surfaces, bluntly pointed or acute, incurved and crowded on fertile branches ; cones purple. Leaves of sterile branches flattened and distinctly grooved above. Bracts of the cone-scales rounded and fimbriate above, long-pointed, incurved, light green, much longer than and covering their scales. 8. A. nobilis (G). Leaves of sterile branches 4-sided. Bracts of the cone-scales acute or acuminate or rounded above, with slender tips shorter or longer than their scales. 9. A. magnifica (G). 1. Leaves flat. ^Leaves dark green. -i-Cones purple. 1. Abies Fraseri, Poir, Balsam Fir. She Balsam. Leaves obtusely short-pointed or occasionally slightly emargiuate at the apex, dark green and lustrous on the upper surface, marked on the lower surface by PlCi c5g) wide bands of 8-12 rows of stomata, 1' to nearly V long, about ^V wide. Flowers : starainate yellow tinged with red; pistillate with scales rounded above, much broader than long and shorter than their oblong pale yellow-green bracts rounded at the broad apex terminating in a slender elongated tip. Fruit oblong-ovate or nearly oval, rounded at the somewhat narrowed apex, dark purple, puberulous, about 2^' long, with scales twice as wide as long, at maturity nearly half covered by their pale yellow-green reflexed bracts; seeds 1' long, with dark lustrous wings much ex- panded and very oblique at the apex. A tree, usually 30°-40° and rarely 70° high, with a trunk occasionally 2^° in diame- ter, and rather rigid branches forming an open symmetrical pyramid and often dis- 58 TREES OF NORTH AMERICA appearing early from the lower part of the trunk, and stout branchlets pubescent for three or four years, pale yellow-brown during their first season, becoming dark reddish brown often tinged with purple, .and obtuse orange-brown winter-buds. Bark of the trunk y-^' thick, and covered with thin closely appressed bright cinnamon-red scales, generally becoming gray on old trees. Wood light, soft, not strong, coarse-grained, pale brown, with nearly white sapwood; occasionally manufactured into lumber. Distribution. Appalachian Mountains from southwestern Virginia to western North Carolina and eastern Tennessee, often forming forests of considerable extent at elevations between 4000° and G000° above the sea-level. Occasionally planted in the parks and gardens of the northern states and of Enrope, but short-lived in cultivation and of little value as an ornamental tree. 2. Abies balsamea, Mill. Balsam Fir. Leaves dark green and lustrous on the upper surface, silvery white on the lower surface, with bauds of 4-8 rows of stomata, ^' long on cone-bearing branches to IV P'Cic^H- long on the sterile branches of young trees, straight, acute or acuminate, with short or elongated rigid callous tips, spreading at nearly right angles to the branch on young trees and sterile branches, on the upper branches of older trees often broadest above the middle, rounded or obtusely short-pointed at the apex, occasionally emarginate on branches at the top of the tree. Flowers: staminate yellow, more or less deeply tinged with reddish purple; pistillate with nearly orbicular purple scales much shorter than their oblong-obovate serrulate pale yellow-green bracts emarginate with a broad apex abruptly contracted into a long slender recurved tip. Fruit oblong-cylindrical, gradually narrowed to the rounded apex, puberulous, dark rich purple, 2'-4' long, with scales usually longer than broad, generally almost twice as long but rarely not as long as their bracts; seeds about ^' long and rather shorter than their light brown wings. A tree, 50°-60° high, with a trunk usually 12'-18', or rarely 30' in diameter, spread- ing branches forming a handsome symmetrical open broad-based pyramid, the lower branches soon dying from trees crowded in the forest, and slender branchlets pale yellow-green and coated with fine pubescence at first, becoming light gray tinged with red, and often when four or five years old with purple. Winter-buds nearly globose, ^'-\' in diameter, with lustrous dark orange-green scales. Bark on old trees often ^' thick, rich brown, much broken on the surface into small plates covered CONIFERS 59 with scales. "Wood light, soft, not strong, coarse-grained, perishable, pale brown streaked with yellow, with thick lighter colored sapwood; occasionally made into lumber principally used for packing-cases. From the bark of this tree oil of fir used in the arts and in medicine is obtained. Distribution. From the interior of the Labrador peninsula northwestward to the shores of the Lesser Slave Lake, southward through Newfoundland, the maritime provinces of Canada, Quebec and Ontario, northern New England, northern New York, northern Michigan and Minnesota to northern and central Iowa; and along the Appalachian Mountains from western Massachusetts and the Catskills of New York to the high mountains of southwestern Virginia; common and often forming a considerable part of the forest on low swampy ground ; on well-drained hillsides sometimes singly in forests of spruce or forming small almost impenetrable thickets; near the timber-line on the mountains of New England and New York reduced to a low almost prostrate shrub. Often planted in the northern states in the neighborhood of farmhouses, but usually short-lived and of little value as an ornamental tree in cultivation; formerly but now rarely cultivated in European plantations. 3. Abies amabilis, Forbes. White Fir. Leaves deeply grooved, very dark green and lustrous on the upper surface, sil- very white on the lower, with broad bauds of 6 or 8 rows of stomata between the prominent midribs and recurved margins, on sterile branches obtuse and rounded, or notched or occasionally acute at the apex, j-l\' long, ^ -yL wide, often broadest above the middle, erect by a twist at their base, very crowded, those on the upper side of the branch much shorter than those on the lower and usually parallel with and closely appressed against it, on fertile branches acute or acuminate, with callous tips, occasionally stomatiferous on the upper surface near the apex, |'-f' long, on vigorous leading shoots acute, with long rigid points, closely appressed or recurved near the middle, about f long and nearly i' wide. Flowers: staminate red; pistil- late with broad rounded scales and rhombic dark purple lustrous bracts erose above the middle and gradually contracted into broad points. Fruit oblong, slightly nar- rowed to the rounded and often retuse apex, deep rich purple, puberulous, 3^'-6' long, with scales I'-l^ wide, nearly as long as broad, gradually narrowed from the rounded apex and rather more than twice as long as their reddish rhombic or oblong- GO TREES OF NORTH AMERICA obovate bracts terminatin ofteu begiuning to bear cones when only 1° or 2° tall, with a trunk rarely more than 1'^ in diameter, ascending branches, and comparatively stout bright reddish brown branchlets, becoming purple and ultimately dark reddish brown. Bark bright reddish brown, about \' thick, and divided by shallow fissures into fiat ridges separating on the surface into long thread-like scales. "Wood soft, very coarse-grained, pale reddish brown. Distribution. Sandy barrens of Mendocino County, California, in a narrow belt, beginning about three quarters of a mile from the ocean, and extending inland for three or four miles from Ten-Mile Run on the north to the Navarro on the south. 5. Cupressus Macnabiana, A. Murr. Cypress. Leaves acute or rounded at the apex, rounded and conspicuously glandular on the back, deep green, often slightly glaucous, usually not more than y^^' long. Flo"wers in March and April, the staminate nearly cylindri- cal, obtuse, with broadly ovate rounded connectives; pistillate subglobose, with broadly ovate scales short- pointed and rounded at the apex. Fruit oblong, sub- sessile or raised on a slen- der stalk, I'-l' long, dark reddish brown more or less covered with a glau- cous bloom, slightly puber- ulous, especially along the margins of the 6 or rarely 8 scales, their prominent bosses thin and recurved on the lower scales, and much PICj 79. CONIFERS 81 thickened, conical, and more or less incurved on the upper scales ; seeds dark chestnut-brown, usually rather less than yY long, with narrow wings. A bushy tree, rarely 30^^ high, with a short trunk 12'-15' in diameter, slender branches covered with close smooth compact bark, bright purple after the falling of the leaves, soon becoming dark brown; more often a shrub with numerous stems 6°-12° tall forming a broad open irregular head. Bark thin, dark reddish brown, broken into brown flat ridges, and separating on the surface into elongated thin slightly attached long-persistent scales. Wood light, soft, very close-grained. Distribution. California, dry hills and low slopes, Mt. -^tna, in central Napa County through Lake County to Red Mountain on the east side of Ukiah Valley, Mendocino County, and in Trinity County between Shasta and Whiskeytown. Occasionally cultivated in western and southern Europe as an ornamental tree. 12. CHAMiECYPARIS. Tall resinous pyramidal trees, with thin scaly or deeply furrowed bark, nodding leading shoots, spreading branches, flattened, often deciduous or ultimately terete branchlets 2-ranked in one horizontal plane, pale fragrant durable heartwood, thin nearly white sapwood, and naked buds. Leaves scale-like, ovate, acuminate, with slender spreading or appressed tips, opposite in pairs, becoming brown and woody before falling, on vigorous sterile branches and young plants needle-shaped or linear- lanceolate and spreading. Flowers minute, moncecious, terminal, the two sexes on separate branchlets, the staminate oblong, of aiumerous decussate stamens, with short filaments enlarged into ovate connectives decreasing in size from below upward and bearing usually 2 pendulous globose anther-cells; the pistillate subglobose, composed of usually 6 decussate fertile peltate scales bearing at the base of the ovu- liferous scales 2-5 erect bottle-shaped ovules. Fruit an erect globose cone maturing at the end of the first season, surrounded at the base by the sterile lower scales of the flowers, formed by the enlargement of the ovule-bearing scales, abruptly dilated, club-shaped and flattened at the apex, bearing the remnants of the flower-scales as short prominent points or knobs; persistent on the branches after the escape of the seeds. Seeds 1-5, erect on the slender stalk-like base of the scale, subcyliudrical and slightly compressed ; seed-coat of 2 layers, the outer thin and membranaceous, the inner thicker and crustaceous, produced into broad lateral wings; cotyledons 2, longer than the superior radicle. Chamaecyparis is confined to the Atlantic and Pacific coast regions of North America, and to Japan and Formosa. Six species are distinguished. Of exotic species the Japanese Retinosporas, ChamcEcyparis ohtusa, Endl., and Chamcecyparis pisifera, Endl., with their numerous abnormal forms are familiar garden plants in all tem- perate regions. Chamcecyparis, is from X"M'*'> oJi the ground, and KvirdpiaaoSf cypress. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Bark thin, divided into flat ridges. Branchlets slender, often compressed ; leaves dull blue-green, usually conspicuously glandular. 1. C. thyoides (A, C). Branchlets stout, slightly flattened or terete ; leaves dark blue-green, usually without glands. 2. C. Nootkateusis (B, G). Bark thick, divided into broad rounded ridges. Branchlets slender, compressed ; leaves bright green, conspicuously glandular. 3. C. Lawsoniana (G). 82 TREES OF NORTH AMERICA 1. Chameecyparis thyoides, Britt. "White Cedar. (Cupressus thyoides, Sllva N. Am. x. 111.) Leaves closely appressed or spreading at the apex, especially on vigorous leading shoots, keeled and glandular or conspicuously glandular-punctate on the back, dark dull blue-green, at the north becoming russet-brown during the winter, t^g'-V long, dying during the second season and then persistent for many years. FloTvers : stami- nate composed of 5 or G pairs of stamens, with ovate connectives rounded at the apex, dark brown below the middle, nearly black toward the apex; pistillate subglobose, with ovate acute spreading pale liver-colored scales and black ovules. Fruit globose, ^' in diameter, sessile on a short leafy branch, light green covered with a glaucous bloom when fully grown, then bluish purple and very glaucous, finally becoming dark red-brown, its scales terminating in ovate acute, often reflexed bosses; seeds 1 or 2 under each fertile scale, ovate, acute, full and rounded at the base, sightly com- pressed, gray-brown, about ^ long, with wings as broad as the body of the seed and dark red-brown. A tree, 70°-80° high, with a tall trunk usually about 2 and occasionally 3°-4° in diameter, slender horizontal branches forming a narrow spire-like head, 2-ranked compressed branchlets disposed in an open fan-shaped more or less deciduous spray, the persistent gradually becoming terete, light green tinged with red, light reddish brown during the first winter, and then dark brown, their thin close bark separating slightly at the end of three or four years into small papery scales. Bark |'-1' thick, light reddish brown, and divided irregularly into narrow flat connected ridges often spirally twisted round the stem, separating on the surface into elongated loose or closely appresse.d plate-like scales. Wood light, soft, not strong, close-grained, slightly fragrant, light brown tinged with red; largely used in boat-building and cooperage, for woodenware, shingles, the interior finish of houses, fence-posts, and railway-ties. Distribution. Cold swamps usually immersed during several months of the year, often forming dense pure forests, from southern Maine southward only near the coast to northern Florida, and westward to the valley of the Pearl River, Mis- sissippi; most abundant south of Massachusetts Bay; comparatively rare east of Boston and west of Mobile Bay. CONIFERS 83 Occasionally planted as an ornamental tree in the eastern states and in the coun- tries of temperate Europe. 2. Chamaecyparis Nootkatensis, Lamb. Yello-w Cypress, Sitka Cypress. (Cupressus Nootkatensis, Silva N. Am. x. 115.) Leaves rounded, eglandular or glandular-pitted on the back, dark blue-green, closely appressed, about \' long, on vigorous leading branchlets somewhat spreading and often i' long, with more elongated and sharper points ; begin- nins: to die at the end of their second year and usually falling dur- inon the third season. Flowers : staminate on lateral branchlets of the previous year, com- posed of 4 or 5 pairs of stamens, with ovate rounded slightly erose light yellow connec- tives ; pistillate clus- tered near the ends of upper branchlets, dark liver color, the fertile scales bearing 2^ ovules each. Fruit ripening in September and October, subglobose, nearly l' in diameter, dark red- brown, with usually 4 or 6 scales tipped with prominent erect pointed bosses and frequently covered with conspicuous resin-glands; seeds 2-4 under each scale, ovate, acute, slightly flattened, about ^' long, dark red-brown, with thin light red-brown wings often nearly twice as wide as the body of the seed. A tree, frequently 120° high, with a tall trunk 5°-6° in diameter, horizontal branches forming a narrow pyramidal head, stout distichous somewhat flattened or terete light yellow branchlets often tinged with red at first, dark or often bright red-brown during their third season, ultimately paler and covered with close thin smooth bark. Bark ^-f' thick, light gray tinged with brown, irregularly fissured and separated on the surface into large thin loose scales. Wood hard, rather brittle, very close-grained, exceedingly durable, bright clear yellow, with very thin nearly white sapwood; fragrant, wath an agreeable resinous odor; used in boat and shipbuilding, the interior finish of houses, and the manufacture of furniture. Distribution. Southwestern Alaska, and southward over the highlands and coast mountains of Alaska and British Columbia, and along the Cascade Mountains of Washington and Oregon to the valley of the Santiam River, extending eastward to the head-waters of the Yakima River on the eastern slope of the range; most abun- dant and of its largest size near the coast of Alaska and northern British Columbia, ranging from the sea-level up to elevations of 3000° ; at high elevations on the Cas- cade Mountains sometimes a low shrub. Occasionally cultivated, with its numerous abnormal forms, as an ornamental tree in the middle Atlantic states and in California, and commonly in the countries of western and central Europe. 84 TREES OF NORTH AMERICA 3. Chamaecyparis Lawsoniana, A. Murr. Port Oiford Cedar. Law^son Cypress. (Cupressus Lawsoniana, Silva N. Am. x. 110.) Leaves bright green, conspicuously glandular on the back, usually not more than ^^' long on lateral branchlets, on leading shoots often spreading at the apex, \' to nearly ^' long; usually dying, turning bright red-brown and falling during their third year. Flowers : starninate with bright red connectives bearing usually 2 pol- len-sacs; pistillate with dark ovate acute spreading scales, each bearing 2-4 ovules. Fruit clustered on the upper lateral branchlets and produced in great profusion, ripening in September and October, globose, about \' in diameter, green and glaucous when full grown, red-brown and often covered with a bloom at maturity, its scales with thin broadly ovate acute reflexed bosses ; seeds 2-4 under each fertile scale, ovate, acute, slightly compressed, \' long, light chestnut-brown, with broad thin wings. A tree, often 200° high, with a tall trunk frequently 12° in diameter above its abruptly enlarged base, a spire-like head of small horizontal or pendulous branches clothed with remote fiat spray frequently 6'-8' long. Bark often 10' thick at the f-\c, 75 base of old trees and 3'-4' thick on smaller stems, dark reddish brown, with 2 dis- tinct layers, the inner \'-\' thick, darker, more compact, and firmer than the outer, divided into great broad-based rounded ridges separated on the surface into small thick closely appressed scales. "Wood light, hard, strong, very close-grained, abound- ing in fragrant resin, durable, easily worked, light yellow or almost white, with hardly distinguishable sapwood ; largely manufactured Into lumber used for the interior finish and flooring of buildings, railway-ties, fence-posts, and ship and boat- building, and on the Pacific coast almost exclusively for matches. The resin is a powerful diuretic. Distribution. Usually scattered in small groves from the shores of Coos Bay, southwestern Oregon, south to the mouth of the Klamath River, California, ranging inland usually for about thirty miles; also near Waldorf, in Josephine County, Ore- gon, on the slopes of the Siskiyou Mountains, and on the southern flanks of Mt. Shasta; most abundant north of Rogue River on the Oregon coast and attaining its largest size on the western slopes of the Coast Range foothills, forming between Point CONIFERS 85 Gregory and the mouth of the Coquille River a nearly continuous forest belt twenty miles long. Often cultivated with the innumerable forms originated in nurseries, in the middle Atlantic states and California, and in all the temperate countries of Europe. 13. JUNIPERUS, L. Juniper. Puno-ent aromatic trees or shrubs, with usually thin shreddy bark, soft close-grained durable wood, slender branches, and scaly or naked buds. Leaves sessile, in whorls of 3, persistent for many years, convex on the lower side, concave and stomatiferous above, linear-subulate, sharp-pointed, without glands; or scale-like, ovate, opposite in pairs or ternate, closely imbricated, appressed and adnate to the branch, glandular on the back, becoming brown and woody on the branch, but on young plants and vigor- ous shoots often free and awl-shaped. Flowers minute, dicecious, axillary or terminal on short axillary l^anches from buds formed the previous autumn on branches of the year; the staminate solitary, oblong-ovate, with numerous stamens decussate or in 3's, their filaments enlarged into ovate or peltate yellow scale-like connectives bearing near the base 2-6 globose pollen-sacs; the pistillate ovoid, surrounded at the base by many minute scale-like bracts persistent and unchanged under the fruit, composed of 2-6 opposite or ternate pointed scales alternate with or bearing on their inner face at the base on a minute ovuliferous scale 1 or 2 ovules. Fruit a berry-like succulent fleshy blue, blue-black, or red strobile formed by the coalition of the flower- scales, inclosed in a membranaceous epidermis covered with a glaucous bloom, ripening during the first, second, or rarely during the third season, smooth or marked by the ends of the flower-scales, or by the pointed tips of the ovules, closed, or open at the top and exposing the apex of the seeds. Seeds 1-12, ovate, acute or obtuse, terete or variously angled, often longitudinally grooved by depressions caused by the pres- sure of resin-cells in the flesh of the fruit, smooth or roughened and tuberculate, light chestnut-brown, marked below by the large conspicuous usually 2-lobed hilum; seed-coat of 2 layers, the outer thick and bony, the inner thin, membranaceous or crustaceous; cotyledons 2, or 4-6, about as long as the superior radicle. Juniperus is widely scattered over the northern hemisphere from the Arctic Cir- cle to the highlands of Mexico, Lower California, and the West Indies in the New -World, and to the Azores and Canary Islands, northern Africa, Abyssinia, the moun- tains of east tropical Africa, Sikkim, central China, and the mountains of southern Japan in the Old World. About thirty-five species are now distinguished. Of the exotic species cultivated in the United States the most common are European forms of Juniperus communis, L., with fastigiate branches, and dwarf forms of Juniperus Sabina, L., and of Juniperus recurva, D. Don, of the Himalayas. Juniperus is the classical name of the Juniper. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Flowers axillary; stamens decussate; ovules 3, alternate with the scales of the flower, their tips persistent on the fruit ; seeds usually 3 ; leaves in 3's, awl-shaped, rigid, free and jointed at the base, without glands ; buds scaly. Fruit subglobose, bright blue covered with a glaucous bloom ; leaves spreading, dark yellow-green, channeled and white glaucous on the upper surface. 1. J. communis (A, B, F). Flowers terminal, on short axillary branchlets ; stamens decussate or in 3's ; ovules in the 86 TREES OF NORTH AMERICA axils of small fleshy scales, often enlarged and conspicuous on the fruit; seeds 1-12; leaves in 3's or opposite, mostly scale-like, crowded, closely appressed and adnate on the branches, free and awl-shaped on vigorous shoots and young plants ; buds naked. Fruit large, reddish brown^ with dry fibrous sweet flesh. Seeds single or few ; cotyledons 4-6. Fruit usually oblong ; seeds 1 or 2 ; leaves in 3's, rounded at the apex, conspicu- ously glandular on the back ; branchlets stout. 2. J. Calif ornica (G). Fruit mostly globose ; seeds usually solitary ; leaves in 3's or in pairs, acute or acuminate, without glands ; branchlets slender. 3. J. Utaheiisis (F, G). Seeds 4-12 ; cotyledons 2. Fruit oblong or globose ; leaves in pairs, glandular, often slightly spreading at the acute or acuminate apex; branchlets slender. 4. J. flaccida (F). Fruit globose ; seeds usually 4 ; leaves in pairs, acute, glandular ; branchlets slen- der ; bark thin, broken into small oblong plates. 5, J. pachyphlaea (E, F, H). Fruit small (large in 6), blue or blue-black {rarely copper color in 7), with resinous juicy flesh ; seeds 1-4 ; cotyledons 2. Fruit subglobose or oblong, the flesh filled with large resin-glands ; seeds 2 or 3 ; leaves in 3's, conspicuously glandular ; branchlets stout. 6. J. occidentalis (B, G). • Fruit globose or oblong ; seeds 1 or rarely 2 ; leaves usually without glands ; branchlets slender. 7. J. monosperma (F). Fruit globose ; seeds 1-4 ; leaves obtuse or rarely acute, keeled and glandular ; branchlets slender. 8. J. sabiiioides (C). Fruit subglobose ; seeds 1-4 ; leaves acute, acuminate, or rarely obtuse, glandu- lar ; branchlets stout, often erect. 9. J. Virginiaiia (A, C). Fruit small, subglobose ; seeds usually 2 ; leaves in pairs, acute or acuminate, glandular ; branchlets very slender ; pendulous. 10. J. Barbadensis (C). Fruit subglobose, maturing the second season ; seeds usually 2 ; leaves acute or acuminate; branchlets rigid, often erect. 11. J. scopulorum (B, F). 1. Leaves awl-shaped, rigid, free and jointed at the base. 1. Juniperus communis, L. Juniper. Leaves in ternate whorls, spreading nearly at right angles to the branchlets, linear- lanceolate, acute and tipped with sharp slender points, articulate and truncate at the base, thickened, rounded, obscurely ridged, dark green and lustrous on the lower surface, snowy white and covered with stomata on the upper surface, y-^' long, about ^' wide, turning during winter a deep rich bronze color on the lower surface, per- sistent for many years. Flowers : staminate composed of 5 or 6 whorls each of 3 stamens, with broadly ovate acute and short-pointed connectives, bearing at the very base 3 or 4 globose anther-cells; pistillate surrounded by 5 or 6 whorls of ternate leaf-like scales, composed of 3 slightly spreading ovules abruptly enlarged and open at the apex, with 3 minute obtuse fleshy scales below and alternate with them. Fruit maturing in the third season, subglobose or oblong, tipped with the remnants of the enlarged points of the ovules, about \' in diameter, with soft mealy resinous sweet flesii and 1-3 seeds; often persistent on the branches one or two years after ripening; seeds ovate, acute, irregularly angled or flattened, deeply penetrated by numerous prominent thin-walled resin-glands, about \' long, the outer coat thick and bony, the inner membranaceous. In America only occasionally tree-like and 20°-30° tall, with a short eccentric ir- regularly lobed trunk rarely a foot in diameter, erect branches forming an irregular CONIFERiE 87 open head, slender brauehlets, smooth, lustrous, and conspicuously 3-angled between the short nodes during their first and second years, light yellow tinged with red, gradually growing darker, their dark red-brown bark separating in the third season into small thin scales, and ovate acute buds about ^ long and loosely covered with scale-like leaves ; more often a shrub, with many short slender stems prostrate at the base and turning upward and forming a broad mass sometimes 20° across and 3° or 4° high; at high elevations and in the extreme north prostrate, with long de- cumbent stems (var. Sibirica, Rydb.). Bark about ^^g' thick, dark reddish brown, separating irregularly into many loose papery persistent scales. Wood hard, close- grained, very durable in contact with the soil, light brown, with pale sapwood. In northern Europe the sweet aromatic fruit of this tree is used in large quantities to impart its peculiar flavor to gin ; occasionally employed in medicine. Distribution. Southern Greenland to the highlands of Pennsylvania, northern Nebraska, along the Rocky Mountains to western Texas, New Mexico, and Arizona, and on the Pacific coast from Alaska to northern California, only becoming truly arborescent in America on the limestone hills of southern Illinois ; in the Old World widely distributed through all the northern hemisphere from arctic Asia and Europe to the Himalayas and the mountains of the Mediterranean Basin. Often planted, especially in some of its pyramidal and dwarf forms, in the eastern United States and in the countries of western, central, and northern Europe. 2. Leaves scale-like, closely appressed and adnate to the branches. *Fruit large, reddish brown. -t-Seeds single or few. 2. Juniperus Californioa, Carr. Juniper. Leaves usually in 3's, closely appressed, thickened, slightly keeled and conspicu- ously glandular-pitted on the back, rounded at the apex, distinctly cartilaginously fringed on the margins, light yellow-green, about ^' long, dying and turning brown on the branch at the end of two or three years; on vigorous shoots linear-lanceolate, rigid, sharp-pointed, j-^' long, whitish on the upper surface. Flovrers from January to March; staminate of 18-20 stamens, disposed in 3's, with rhomboidal 88 TREES OF NORTH AMERICA short-pointed connectives; scales of the pistillate flower usually 6, ovate, acute, spreading, obliter- ated or minute on the fruit. Fruit ripening in the au- tumn of the second season, globose or oblong, ^'-|' long, reddish brown, with membranaceous f'WZ a loose epidermis cov- ered with a thick glaucous bloom, thin fibrous dry sweet flesh, and 1 or 2 large seeds; seeds ovate, acute, sharp- pointed, irregularly lobed and angled, with a thick shell, the outer coat hard and bony, the inner thin, white, and cartilaginous, and 4-6 cotyledons. A conical tree, occasionally 40° high, with a straight large-lobed unsymmetrical trunk l°-2° in diameter; more often shrubby, with many stout irregular usually con- torted stems forming a broad open head. Bark thin and divided into long loose plate-like scales ashy gray on the outer surface and persistent for many years. Wood soft, close-grained, durable in contact with the soil, light brown slightly tinged with red, with thin nearly white sap wood ; used for fencing and fuel. The fruit is eaten by Indians fresh or ground into flour. Distribution. Dry mountain slopes and plains from the valley of the lower Sac- ramento River southward through the California coast-ranges to Lower California, spreading inland along the southern coast mountains to their union with the Sierra Nevada, and northward along the western slopes of the sierras to the neighborhood of Kernville; also on the desert slopes of the Tehachapi Mountains, or the north- ern foothills of the San Bernardino Mountains, and on the eastern slopes of the San Jacinto and Cuyamaca ranges. 3. Juniperus Utahensis, Lemm. Juniper. Leaves opposite or occasionally in 3's, rounded, mostly without glands on the back, acute or often acuminate, light yellow-green, rather less than i' long, persistent for many years, the elongated and long-pointed leaves of young shoots passing gradually into the. acerose leaves of more vigorous shoots and seedling plants. Flowers : staminate with 18-24 opposite or ternate stamens, their connectives rhomboidal; scales of the pistillate flower acute, spreading, often in pairs. Fruit ripening during the autumn of the second season, subglobose or oblong, marked by the more or less prominent tips of the flower-scales, reddish brown, with a thick firm epidermis cov- ered with a glaucous bloom and closely investing the thin dry sweet flesh, ^'-j long, with 1 or rarely 2 seeds; seeds ovate, acute, conspicuously acutely angled, marked nearly to the apex by the hilum, ye'-^' long, with a hard bony shell, a membranaceous pale brown inner seed-coat, and 4-6 cotyledons. A bushy tree, rarely exceeding 20° in height, with a short usually eccentric trunk CONIFERJE 89 sometimes 2° in diameter, generally divided near the ground by irregular deep fis- sures into broad rounded ridges, many erect contorted branches forming a broad open head, slender light yellow-green branchlets covered after the falling of the leaves with thin light red-brown scaly bark; more often with numerous stems spreading from the ground and frequently not more .than 8°-10° high. Bark about \' thick, ri<. 78 ashy gray or sometimes nearly white, and broken into long tliin persistent scales. Wood light brown, slightly fragrant, with thick nearly white sapwood ; largely used locally for fuel and fencing. The fruit is eaten by Indians fresh or ground and baked into cakes. Distribution. In the desert region between the Rocky Mountains and the Sierra Nevada, where it is the most abundant and most generally distributed tree, from the western foothills of the Wahsatch Mountains in eastern Utah to southeastern Cali- fornia, northern Arizona, western Colorado, and southern Wyoming; in central Nevada often descending into the valleys and forming open stunted forests at ele- vations of about 5000°; more abundant and of larger size on arid slopes to eleva- tions of 8000° above the sea in dense nearly pure forests. -« — *- Seeds j^-12. 4. Juniperus flaocida, Schlecht. Juniper. Leaves opposite, long-pointed, and sometimes slightly spreading at the apex, rounded and conspicuously glandular on the back, light yellow-green, about \' long, turning cinnamon-red and dying on the branch; on vigorous young shoots ovate- lanceolate, sometimes ^ long, with elongated rigid callous tips. Flo"wers: stami- nate slender, composed of 16-20 stamens, with ovate pointed connectives promi- nently keeled on the back; pistillate with acute or acuminate spreading scales. Fruit globose or oblong, irregularly tuberculate, dull red-brown, more or less covered with a glaucous bloom, marked by the numerous reflexed tips of the flower- scales, ^'-f' long, with a close firm epidermis and dry mealy flesh ; seeds 4-12, often abortive and distorted, about \' long, with 2 cotyledons. A tree, occasionally 30° high, with gracefully spreading branches and long slender drooping branchlets, covered after the leaves fall with thin bright cinnamon-brown bark separating into thin loose papery scales; often a shrub. 90 TREES OF NORTH AMERICA ;V\ T'^ 79 Distribution. In the United States only on the slopes of the Chisos Mountains in southwestern Texas; common in northeastern Mexico, growing at elevations of 6000°-8000° on the hills east of the Mexican table-lands. Occasionally cultivated in the gardens of southern France and Algeria. 5. Juniperus pachyphlaea, Torr. Juniper. Checkered-bark Juniper. Leaves in pairs, appressed, rounded and apiculate at the apex, thickened, obscurely keeled and glandular on the back, bluish green, rather less than 1' long; on vigorous shoots and young branchlets linear-lanceolate, tipped with slender elongated points, and pale blue-green like the young branchlets. Flowers opening in February and March, the staminate stout, ^ long, with 10 or 12 stamens, their connectives broadly ovate, obscurely keeled on the back, short-pointed; scales of the pistillate flower ovate, acuminate, and spreading. Fruit ripening in the autumn of the second season, globose or oblong, irregularly tuberculate, about ^' long, usually marked pic, SO with the short tips of the flower-scales, occasionally opening and discharging the seeds at the apex, dark red-browm, more or less covered with a glaucous bloom, especially during the first season and then occasionally bluish in color, with a thin .epidermis closely investing the thick dry mealy flesh, and usually 4 seeds; seeds acute, conspicuously ridged and gibbous on the back, with a thick shell, a pale inner seed-coat, and 2 cotyledons. CONIFERS 91 A tree, often o0°-60° high, with a short trunk 3° -5° in diameter, long stout spreading branches forming a broad-based pyramidal or ultimately a compact round- topped head, and slender branchlets covered after the disappearance of the leaves with thin light red-brown usually smooth close bark occasionally broken into laro-e thin scales. Bark |'-4' thick, dark brown tinged with red, deeply fissured and divided into nearly square plates V-2' long, and separating on the surface into small thin closely appressed scales. Wood light, soft, not strong, brittle, close-grained, clear light red often streaked with yellow, with thin nearly white sapwood. The fruit is gathered and eaten by Indians. Distribution. Dry arid mountain slopes usually at elevations of 4000°-6000° above the sea, from the Eagle and Limpio mountains in southwestern Texas, west- ward along the desert ranges of New Mexico and Arizona, south of the Colorado plateau, extending northward to the lower slopes of many of the high mountains of northern Arizona and southward into Mexico. ** Fruit small [large in G'], blue or blue-black j seeds 1-J^. 6. Juniperus occidentalis, Hook. Juniper. Leaves in 3's, closely appressed, acute or acuminate, rounded and conspicuously glandular on the back, gray-green, about \' long. Flowers : staminate stout, obtuse, with 12-18 stamens, their connectives broadly ovate, rounded, acute or apiculate and Piq ^\ scarious or slightly ciliate on the margins; scales of the pistillate flower ovate, acute, spreading, mostly obliterated from the fruit. Fruit subglobose or oblong, \'-\' long, with a thick firm blue-black epidermis coated with a glaucous bloom, thin dry flesh filled with large resin-glands, and 2 or 3 seeds ; seeds ovate, acute, rounded and deeply grooved or pitted on the back, flattened on the inner surface, about \' long, with a thick bony shell, a thin brown inner seed-coat, and 2 cotyledons. A tree, occasionally 60° high, with a tall straight trunk 2°-3° in diameter, more often hardly exceeding 20° in height, with a short trunk sometimes 10° in diameter, enormous branches, spreading at nearly right angles and forming a broad low head, and stout branchlets covered after the leaves fall with thin bright red-brown bark broken into loose papery scales; frequently when growing on dry rocky slopes and 92 TREES OF NORTH AMERICA toward the northern limits of its range shruhby, with many short erect or semi- prostrate stems. Bark about ^' thick, bright cinnamon-red, divided by broad shallow fissures into wide liat irregularly connected ridges separating on the surface into thin lustrous scales. "Wood light, soft, very close-grained, exceedingly durable, light red or brown, with thick nearly white sapwood ; used for fencing and fuel. The fruit is gathered and eaten by the California Indians. Distribution. ISIountain slopes and high prairies of western Idaho and western Washington and Oregon, along the summits and upper slopes of the Sierra Nevada of California, southward to the San Bernardino Mountains; attaining its greatest trunk diameter on the wind-swept peaks of the California sierras, usually at eleva- tions between 6000° and 10,000° above the sea. 7. Juniperus monosperma, Sarg. Juniper. Leaves in pairs or rarely in 3's, often slightly spreading at the apex, acute or occasionally acuminate, much thickened and rounded on the back, usually without or occasionally with obscure dorsal glands, gray-green, rather less than ^' long, turn- ing bright red-brown before falling; on vigorous shoots and young plants ovate, acute, tipped with long rigid points, thin, conspicuously glandular on the back, often ^' long. Flowers : staminate with 8-10 stamens, their broadly ovate, rounded, or pointed con- nectives slightly erose on the margins; pistillate with spreading pointed scales. Fruit globose or oblong, ^'-\' long, dark blue or occasionally copper color, with a thick firm epidermis covered with a thin glaucous bloom, thin resinous flesh, and 1 or rarely 2 or 3 seeds; seeds broadly ovate, often 4-angled, somewhat obtuse at the' apex, with numerous slender grooves between the ridges, a comparatively thin brittle shell, and 2 cotyledons. A tree, occasionally 40°-50° high, with a stout much-lobed and buttressed trunk sometimes 3° in diameter, short stout branches forming an open very irregular head, and slender branchlets covered after the falling of the leaves with light red- brown bark spreading freely into thin loose scales. Bark thin, ashy gray, divided into irregularly connected ridges, broken into long narrow persistent shreddy scales. Wood heavy, slightly fragrant, light reddish brown, with nearly white sapwood and eccentric layers of annual growth; largely used for fencing and fuel. The fruit is CONIFERS 93 ground into flour and baked by the Indians, who use the thin strips of fibrous bark in making saddles, breechcloths, and sleeping-mats. Distribution. Along the eastern base of the Rocky Mountains from the divide between the Platte and Arkansas rivers in Colorado to western Texas, spreading over the Colorado plateau, over the mountain ranges of Nevada, southern New Mexico and Arizona, and southward into northern Mexico; often covering, with the Nut Pine, in southern Colorado and Utah, and in northern and central New Mexico and Arizona, great areas of rolling hills 6O00°-700O° above the sea-level; reaching its largest size in northern Arizona. 8. Juniperus sabinoides, Nees. Cedar. Rock Cedar. Leaves in pairs, thickened and keeled on the back, obtuse or acute at the apex, mostly without glands, rather more than -^q' long, dark blue-green; on vigorous young shoots and seedling plants lanceolate, long-pointed, rigid, i -^' long. Flowers : staminate with 12-18 stamens, their connectives ovate, obtuse, or slightly cuspidate; scales of the pistillate flower ovate, acute, and spreading, very conspicuous when the fruit is half grown, becoming obliterated at its maturity. Fruit subglobose, \'-^' in diameter, dark blue, with a thin epidermis covered with a glaucous bloom, sweet resinous flesh, and 1 or rarely 2 seeds; seeds broadly ovate, acute, slightly or Fic, 83 conspicuously ridged, rarely tuberculate, nearly 1' long and 1' thick, with a small hilum, a thin outer seed-coat, a membranaceous dark brown inner coat, and 2 coty- ledons. A tree, occasionally 100° but generally not more than 20°-30° high, with a short or elongated slightly lobed trunk seldom exceeding a foot in diameter, small spread- ing branches forming a wide round-topped open and irregular or a narrow pyramidal head, slender sharply 4-angled branchlets becoming terete after the falling of the leaves, light reddish brown or ashy gray, with smooth or slightly scaly bark; often a shrub, with numerous spreading stems. Bark on young stems and on the branches gray tinged with red, covered with a network of flat plates, scaly on the surface and separated on the margins into thin pale shreds, becoming on old trees \'-^' thick, brown tinged with red, and divided into long narrow slightly attached scales per- sistent for many years and clothing the trunk with a loose thatch-like covering. 94 TREES OF NORTH AMERICA Wood light, hard, not strong, slightly fragrant, brown streaked with red; largely used for fencing, fuel, telegraph-poles, and railway-ties. Distribution. From Brazos County over the low limestone hills of western and southern Texas, and southward into Mexico; forming great thickets and growing to its largest size on the San Bernardo River; much smaller farther westward, and usually shrubby at the limits of vegetation on the high mountains of central Mexico. 9. Juniperus Virginiana, L. Red Cedar. Savin. Leaves in opposite pairs, acute or acuminate with short slender points or occa- sionally obtuse, rounded and glandular or eglandular on the back, about Jg' long, dark blue-green or glaucous, at the north turning russet or yellow-brown during the winter, beginning in their third season to grow hard and woody, and remaining two or three years longer on the branches; on young plants and vigorous branches linear- lanceolate, long-pointed, light yellow-green, without glands, ^'-f ' long. Flovrers : dioecious or very rarely monoecious; staminate with 10 or 12 stamens, their connec- tives rounded and entire, with 4 or occasionally 5 or 6 pollen-sacs; scales of the pistillate flower violet color, acute and spreading, becoming obliterated from the fruit. Fruit subglobose, Y-^' in diameter, pale green when fully grown, dark blue and covered with a glaucous bloom at maturity, with a firm epidermis, thin sweet- ish resinous flesh, and 1 or 2 or rarely 3 or 4 seeds; seeds acute and occasionally apiculate at the apex, marked below with a comparatively small 2-lobed hilum, i'-i' long, with a thick bony outer coat, a pale brown membranaceous inner coat, and 2 cotyledons. A tree, occasionally 100° high, with a trunk 3°-4° in diameter, often lobed and eccentric, and frequently buttressed toward the base, generally not more than 40°- 50° tall, with short slender branches horizontal on the lower part of the tree, erect above, forming a narrow compact pyramidal head, in old age usually becoming broad and round-topped or irregular, and slender 4-angled branchlets terete after the dis- appearance of the leaves and covered with close dark brown bark tinged with red or gray. Bark ^'-j thick, light brown tinged with red, and separated into long narrow scales fringed on the margins, and persistent for many years. "Wood light, close- grained, brittle, not strong, dull red, with thin nearly white sapwood, very fragrant, easily worked; largely used for posts, the sills of buildings, the interior finish of CONIFERS 95 houses, the lining of closets and chests for the preservation of woolens against the attacks of moths, and largely for pails and other small articles of woodenware. A decoction of the fruit and leaves is used in medicine, and oil of red cedar distilled from the leaves and wood as a perfume. Distribution. Dry gravelly slopes and rocky ridges, often immediately on the sea- coast, from southern Nova Scotia and New Brunswick to the coast of Georgia, the interior of southern Alabama and Mississippi, and westward to the valley of the lower Ottawa River, eastern Dakota, eastern Nebraska and Kansas, the Indian Ter- ritory and eastern Texas, not ascending the mountains of New England and New York nor the high southern Alleghanies; in middle Kentucky and Tennessee, and northern Alabama and Mississippi, covering great areas of low rolling limestone hills with nearly pure forests of small bushy trees. Often cultivated in the northern and eastern states as an ornamental tree and occasionally in the gardens of western and central Europe. 10. Juniperus Barbadensis, L. Red Cedar. Leaves opposite in pairs, narrow, acute or gradually narrowed above the middle and acuminate, marked on the back by conspicuous oblong glands. Flo'wers open- ing in early March, staminate elongated, ^' to nearly ^' long, with 10 or 12 stamens, their connectives rounded, entire, and bearing usually 3 pollen-sacs; pistillate with scales gradually narrowed above the middle, acute at the apex, and obliterated from the ripe fruit. Fruit subglobose, dark blue, covered when ripe with a glaucous bloom, usually about 1' in diameter, with a thin epidermis, sweet resinous flesh, and usually 2 seeds. A tree, sometimes 50° high, with a trunk occasionally 2° in diameter, small branches erect when the tree is crowded in the forest, spreading when it has grown in open ground and forming a broad flat-topped head often 30° or 40° in diameter, long thin secondary branches erect at the top of the tree and pendulous below, and slender 4-angled pendulous branchlets becoming light red-brown or ashy gray at the end of four or five years after the disappearance of the leaves. Bark thin, light red-brown, separating into long thin scales. Wood light, close, straight-grained, 96 TREES OF NORTH AMERICA fragrant, dull red; formerly exclusively used in the manufacture of the best lead pencils. Distribution. Inundated river swamps from southern Georgia, southward to the shores of the Indian River, Florida, and on the west coast of Florida from the north- ern shores of Charlotte Harbor to the valley of the Appalachicola River, often forming great thickets under the shade of larger trees; common on the Bahamas, San Do- mingo, the mountains of Jamaica, and Antigua. Often planted for the decoration of squares and cemeteries in the cities and towns in the neighborhood of the coast from Florida to western Louisiana, and now often naturalized on the Gulf coast; occasionally cultivated in the temperate countries of Europe, and in cultivation the most beautiful of the Junipers. 11. Juniperus scopulorum, Sarg. Red Cedar. Leaves opposite in pairs, closely appressed, acute or acuminate, marked on the back by obscure elongated glands, dark green, or often pale and very glaucous. Flowers : staminate with about 6 stamens, their connectives rounded and entire, bearing 4 or 5 anther-sacs ; scales of the pistillate flower spreading, acute or acumi- nate, and obliterated from the mature fruit. Fruit ripening at the end of the second season, nearly globose, \'-^' in diameter, bright blue, with a thin epidermis covered with a glaucous bloom, sweet resinous flesh, and 1 or usually 2 seeds; seeds acute, prominently grooved and angled, about y^' long, with a thick bony outer coat and a small 2-lobed hilum. A tree, 30°-40° high, with a short stout trunk sometimes 3° in diameter, often divided near the ground into a number of stout spreading stems, thick spread- ing and ascending branches covered with scaly bark, forming an irregular round- topped head, and slender 4-angled branchlets becoming at the end of three or four years terete and clothed with smooth pale bark separating later into thin scales. Bark dark reddish brown or gray tinged with red, divided by shallow fissures into narrow flat connected ridges broken on the surface into persistent shredded scales. Distribution. Scattered often singly over dry rocky ridges, except near the coast usually at elevations of more than 6000° above the sea, from the eastern foot- TAXACE^ 97 hill resrion of the Rockv Mountains from Alberta to western Texas, and westward to the coast of British Columbia and Washington and to eastern Oregon, Nevada, and northern Arizona. II. TAXACEiE. Slightly resinous trees and shrubs, producing when cut vigorous stump shoots, with fissured or scaly bark, light-colored durable close-grained wood, slender green branchlets, linear-lanceolate entire rigid acuminate sharp-pointed spirally disposed leaves, usually appearing 2-ranked by a twist in their short compressed petioles and persistent for many years, and small ovate acute buds. Flowers opening in early spring from buds formed the previous autumn, dicEcious, axillary and solitary, surrounded by the persistent decussate scales of the buds, the staminate composed of numerous filaments united into a column, each filament surmounted by several more or less united pendant pollen- cells ; the pistillate of a single erect ovule, becoming in fruit a seed with a hard bony shell, raised upon or more or less surrounded by the enlarged and fleshy aril-like disk of the flower; embryo axile, in fleshy ruminate or uniform albumen ; cotelydons 2, shorter than the superior radicle. Of the ten genera widely distributed over the two hemispheres, two occur in North America. CONSPECTUS OF THE NORTH AMERICAN GENERA. Filaments dilated into 4 pollen-sacs united into a half ring ; fruit drupe-like ; albumen riiminate. 1. Tumion. Filaments dilated into a globose head of 4-8 connate pollen-sacs ; fruit berry-like, scarlet ; albumen uniform. 2. Taxus. 1. TUMION, Raf. Glabrous fcetid or pungent aromatic trees, with fissured bark and verticillate or opposite spreading or drooping branches. Leaves thin, long-pointed, abruptly con- tracted at the base, slightly rounded on the back, grooved below, with a broad sto- matiferous groove on each side of the midvein, revolute and slightly thickened on the margins, dark green and lustrous on the upper surface, often pale on the lower surface. Flowers : the staminate crowded in the axils of adjacent leaves, oval or oblong, composed of 6 or 8 close whorls each of 4 stamens, subverticillately arranged on a slender axis ; filaments stout and expanded above into 4 globose yellow pollen- sacs united into a half ring, their connectives produced above the cells ; the pistillate less numerous and scattered, sessile, the ovule surrounded by and finally inclosed in an ovate urn-shaped fleshy sac, and becoming at maturity an ovoid or obovate drupe-like green or purple fruit pointed at the apex, separating when ripe from the basal scales persistent on the short stout stalk, covered with a thick leathery outer coat closely investing the seed. Seed ovoid, acute at the ends, apiculate at the apex, marked at the base by the large dark hilum ; seed-coat thick and woody, its inner layer folded into the thick white albumen. Tumion is now confined to Florida, western California, Japan, and central and northern China. Four species are recognized. Of the exotic species the Japanese Tumion nuciferum, Greene, is occasionally cultivated in the eastern states. Tumion is from 6{>fjiiov, a name given by the ancients to some kind of Yew-tree. 98 TREES OF NORTH AMERICA CONSPECTUS OF THE NOKTH AMERICAN SPECIES. Leaves slig-htly rounded on the back, pale on the lower surface ; fruit more or less deeply tinged with purple ; leaves, branches, and wood fcBtid. 1. T. taxifolium (C). Leaves nearly Hat, green below, elongated ; fruit green slightly tinged with purple ; leaves, branches, and wood pungent-aromatic. 2. T. Californicum (G). 1. Tumion taxifolium, Greene. Stinking Cedar. Torreya. Leaves slightly falcate, 1^' long, about |' wide, somewhat rounded, dark green and lustrous above, paler and marked below with broad shallow grooves. Flow^ers appearing in March and April; staminate with pale yellow anthers; pistillate broadly ovate, with a dark purple fleshy covering to tlie ovule, i' long, and inclosed at the base by broad thin rounded scales. Fruit fully grown at midsummer, slightly obovate, dark purple, I'-l^ long, |' broad, with a thin leathery covering, a light red-brown seed furnished on the inner surface of the brittle woody coat with 2 opposite longitu- dinal thin ridges extending from the base toward the apex, and conspicuously rumi- nate albumen penetrated by the brown inner seed-coat. A tree, occasionally 40° high, with a short trunk l°-2° in diameter, whorls of spreading slightly pendulous branches forming a rather open pyramidal head tapering from a broad base. Bark 1' thick, brown faintly tinged with orange color, and irregularly divided by broad shallow fissures into wide low ridges slightly rounded on the back and covered with thin closely appress6d scales. Wood hard, strong, clear bright yellow, with thin lighter colored sapwood; largely used for fence-posts. Distribution. Limestone soil on bluffs along the eastern bank of the Appalachi- cola River, Florida, from River Junction to the neighborhood of Bristol, Gadsden County. Occasionally cultivated in the northern states and in' western Europe. 2. Tumion Californicum, Greene. California Nutmeg. Leaves slightly falcate, nearly flat, dark green and lustrous on the upper, some- what lighter and marked with deep narrow grooves on the lower surface, tipped with slender callous points, l'-3^' long, -^q'-^' wide. Flowers appearing in March and TAXACE^ 99 April; staminate with broadly ovate acute scales; pistillate nearly ^' long, with oblong ovate ronnded scales. Fruit ovate or oblong-ovate, I'-l^' long, light green more or less streaked with purple. . A tree, oO°-70° but occasionally 100° high, with a trunk l°-2° or rarely 4° in diameter, and whorls of spreading slender slightly pendulous branches forming a handsome pyramidal and in old age a round-topped head. Bark ^'-^' thick, gray-brown tinged with orange color, deeply and irregularly divided by broad fis- sures into narrow ridges covered with elongated loosely appressed plate-like scales. Wood light, soft, close-grained, clear light yellow, with thin nearly white sap wood; occasionally used for fence-posts. Distribution. Borders of mountain streams, California, nowhere common but widely distributed from Mendocino County to the Santa Cruz Mountains in the coast region and along the western slopes of the Sierra Nevada from Eldorado to Tulare County at elevations of 3000^-5000° above the sea; most abundant and of its largest size on the northern coast ranges. Rarely cultivated as an ornamental tree in western Europe. 2. TAXUS, L. Yew. Trees or shrubs, with brown or dark purple scaly bark, and spreading usually hori- zontal branches. Leaves flat, often falcate, gradually narrowed at the base, dark green, smooth and keeled on the upper surface, paler, papillate, and stomatiferous on the lower surface, their margins slightly thickened and revolute. Flowers : the staminate composed of a slender stipe bearing at the apex a globular head of 4—8 pale yellow stamens consisting of 4-6 conical pendant pollen-sacs peltately con- nate from the end of a short filament; the pistillate sessile in the axils of the upper scale-like bracts of a short axillary branch, the ovule erect, sessile on a ring-like disk, ripening in the autumn into an ovate-oblong seed gradually narrowed and short-pointed at the apex, marked at the base by the much-depressed hilum, about ^' long, entirely or nearly surrounded by but free from the now thickened succulent translucent sweet scarlet aril-like disk of the flower closed or open at the apex; seed-coat thick, of two layers, the outer thin and membranaceous or fleshy, the inner much thicker and somewhat woody; albumen uniform. 100 TREES OF NORTH AMERICA Taxus with six species, which can be distinguished only by their leaf characters and habit, is widely distributed through the northern hemisphere, and is found in east- ern North America where two species occur, in Pacific North America, Mexico, Europe northern Africa, western and southern Asia, China and Japan. Of the exotic species the European, African, and Asiatic Taxus baccata, L., and its numerous varieties, is often cultivated in the United States, especially in the more temperate parts of the country, and is replaced with advantage by the hardier Taxus cuspidata, S. & Z., of eastern Asia in the northern states, where the native shrubby Taxus Canadensis, Marsh, with monoecious flowers is sometimes cultivated. Taxus, from rd^os, is the classical name of the Yew-tree. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Leaves short, yellow-green. Leaves elongated, usually falcate, dark green. 1. T. brevifolia (G). 2. T. Floridana (C). 1. Taxus brevifolia, Nutt. Yew. Leaves ^-f' long, about ^^g' wide, dark yellow-green above, rather paler below, with stout midribs, and slender yellow petioles ^^' long, persistent for four or five years. Flovrers and fruit as in the genus. A tree, usually 40°-50° but occasionally 70°-80° high, with a tall straight trunk l°-2° or rarely 4^° in diameter, frequently unsymmetrical, with one diameter much exceeding the other, and irregularly lobed, with broad rounded lobes, and long slender horizontal or slightly pendulous branches forming a broad open conical head. Bark about ^' thick and covered with small thin dark red-purple scales. "Wood heavy, hard, strong, bright red, with thin light yellow sapwood; used for fence-posts and by the Indians of the northwest coast for paddles, spear-handles, bows, and other small articles. Distribution. Banks of mountain streams, deep gorges, and damp ravines, grow- ing usually under large coniferous trees; nowhere abundant, but widely distributed usually in single individuals or in small clumps from Queen Charlotte Islands and the valley of the Skeena River, southward along the coast ranges of British Colum- bia, Washington, and Oregon, where it attains its greatest size, along the coast ranges of California as far south as the Bay of Monterey, and along the western slopes of TAXACE^ 101 the Sierra Nevada to Tulare County at elevations between 5000° and 8000° above the sea-level, ranging eastward in British Columbia to the Selkirk Mountains, and over the mountains of Washington and Oregon to the western slopes of the conti- nental divide in Montana; in the interior much smaller than near the coaist and often shrubby in habit. Occasionally cultivated in the gardens of western Europe. 2. Taxus Floridana, Chapm. Yew. Leaves usually conspicuously falcate, |' to nearly 1' long, yV"?' wide, dark green above, pale below, with obscure midribs and slender petioles about ^q' long. Flowers appearing in March. Fruit ripens in October. A bushy tree, rarely 25° high, with a short trunk occasionally 1° in diameter, and numerous stout spreading branches; more often shrubby in habit and 12°-15° f\(, 90 tall. Bark ^ thick, dark purple-brown, smooth, compact, occasionally separating into large thin irregular plate-like scales. Wood heavy, hard, very close-grained, dark brown tinged with red, with thin nearly white sapwood. Distribution, River bluffs and ravines on the eastern bank of the Appalachicola River, in Gadsden County, western Florida, from Aspalaga to the neighborhood of Bristol. 102 TREES OF NORTH AMERICA Class 2. ANGIOSPERM^. Carpels or pistils consisting of a closed cavity containing the ovules and becoming the fruit. Division I. Monocotyledons. Stems with woody fibres distributed irregularly through them, but without pith or annual layers of growth. Parts of the flower in 3's : ovary superior ; embryo with a single cotyledon. Leaves parallel- veined, alternate, long-persistent, without stipules. III. PALMiE. PALMS. Trees, growing by a single terminal bud, with stems covered with a thick rind, usually marked below by the ring-like scars of fallen leaf-stalks, and clothed above by their long-persistent sheaths ; occasionally stemless. Leaves clustered at the top of the stem, plaited in the bud, fan-shaped or pinnate, their rachises sometimes reduced to a narrow border, long-stalked, with petioles dilated into clasping sheaths of tough fibres (vaginas)^ on fan-shaped leaves, furnished at the apex on the upper side with a thickened concave body (llgule). Flowers minute, perfect or unisexual, in the axils of small thin mostly decid- uous bracts, in large compound clusters (spadix) surrounded by boat-shaped bracts (sjyathes) ; sepals and petals free or more or less united ; stamens usually 6 ; anthers 2-celled, introrse, opening longitudinally ; ovary 3-celled, with a single ovule in each cell ; styles 1—3. Fruit a drupe or berry ; embryo cylindrical in a cavity of the hard albumen near the circumference of the seed. Of the 130 genera now usually recognized and chiefly inhabitants of the tropics, seven have arborescent representatives in the United States. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT GENERA. Leaves fan-shaped. Leaf-stalks unarmed. Calyx and corolla united into a short 6-lobed cup. Fruit white, drupaceous ; albumen even. 1. Thrinax. Fruit black, baccate ; albumen channeled. 2. Coccothrinax. Perianth of a distinct calyx and corolla. Filaments subulate, united below into a slender cup adnate to the base of the corolla ; fruit baccate. 3. Sabal. Leaf -stalks armed with marginal spines. Filaments slender, free ; fruit baccate. ' 4. Washingtbnia. Filaments triangular, united into a cup adnate to the base of the corolla ; fruit dru- paceous. 5. Serenoa. Leaves pinnate. ' Flower-clusters produced on the stem below the leaves ; fruit violet-blue. 6. Roystonea. Flower-clusters produced from among the leaves; fruit bright orange-scarlet. 7. Pseudophoenix. PALM^ 103 1. THRINAX, Sw. Small unarmed trees, with stems covered with pale gray rind. Leaves orbicular, or truncate at the base, thick and firm, usually silvery white on the lower surface, divided to below the middle into narrow acuminate parted segments with thickened margins and midribs; rachises narrow borders, with thin usually undulate margins; ligules thick, concave, pointed, lined while young with hoary tomentum ; petioles com- pressed, rounded above and below, thin and smooth on the margins, with large clasp- ing bright mahogany-red sheaths of slender matted fibres covered with thick hoary tomentum. Spadix interfoliar, stalked, its primary branches short, alternate, flat- tened, incurved, with numerous slender rounded flower-bearing branchlets; spathes numerous, tubular, coriaceous, cleft and more or less tomentose at the apex. Flowers opening in May and June, and occasionally irregularly in the. autumn, solitary, per- fect ; perianth 6-lobed ; stamens inserted on the base of the perianth, with subulate filaments thickened and only slightly united at the base, or nearly triangular and united into a cup adnate to the perianth, and oblong anthers; ovary 1-celled, grad- ually narrowed into a stout columnar style crowned by a large funnel-formed flat or oblique stigma; ovule basilar, erect. Fruit a globose drupe with juicy bitter ivory white flesh easily separable from the thin-shelled tawny brown nut. Seed free, erect, slightly flattened at the ends, with an oblong pale conspicuous subbasilar hilum, a short-branched raphe, a thin coat, and uniform albumen more or less deeply pene- trated by a broad basal cavity ; embryo lateral. Thrinax is confined to the tropics of the New World and is distributed from south- ern Florida through the West Indies to the shores of Central America. Seven or eight species are now generally recognized. The wood of the Florida species is light and soft, with numerous small fibro-vascu- lar bundles, the exterior of the stem being much harder than the spongy interior. The stems are used for the piles of small wharves and turtle crawls, and the leaves for thatch, and in making hats, baskets, and small ropes. Thrinax, from dpiva^, is in allusion to the shape of the leaves. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Flowers on elongated pedicels ; perianth obscurely lobed ; filaments subulate, barely united at the base ; stigma oblique. 1. T. Floridana (D). Flowers on short pedicels ; lobes of the perianth ovate, acuminate ; filaments nearly trian- gular, united below into a cup ; stigma flat. Seeds pale chestnut-brown ; spadix about 6° long ; leaves 3°-4° in diameter. 2. T. Keyensis (D). Seeds dark chestnut -brown ; spadix less than 3° long ; leaves not over 2° in diameter. 3. T. microcarpa (D). 1. Thrinax Floridana, Sarg. Thatch. Leaves 21°-3° in diameter, rather longer than broad, yellow-green and lustrous on the upper surface, silvery white on the lower surface, with long-pointed, bright orange-colored ligules |' long and broad; their petioles 4°-4^° long, pale yellow-green or orange color toward the apex, coated at first with hoary deciduous tomentum, much thickened and tomentose toward the base. Flowers: spadix 3°-3^° long, . the primary branches 6'-8' long and ivory-white, flower-bearing branches l^'-2' in length. Flowers on slender pedicels nearly \' long, ivory-white, very fragrant, with 104 TREES OF NORTH AMERICA an obscurely-lobed perianth, much exserted stamens barely united at the base, and an oblique stigma. Fruit |' in diameter, somewhat depressed at the ends; seeds f^.9i from 1' to nearly ^ "^ diameter, dark chestnut-brown, penetrated almost to the apex by the broad basal cavity. A tree, with a slightly tapering stem 20°-30° high and 4'-6' in diameter, clothed to the middle and occasionally almost to the ground with the sheaths of dead leaf- stalks. Distribution. Florida, dry coral ridges and sandy shores of keys from Long Key to Torch Key, and on the mainland from Cape Romano to Cape Sable. 2. Thrinax Keyensis, Sarg. Thatch. Leaves rather longer than broad, 3°-4° long, the lowest segments parallel with the petiole or spreading from it nearly at right angles, light yellow-green and lustrous on the upper surface, with bright orange-colored margins, below coated while young with deciduous hoary tomentum and pale blue-green and more or less covered with silvery white pubescence at maturity, with thick pointed ligules 1' long and wide, lined at first with hoary tomentum; their petioles flattened above, obscurely PALM^ 105 ridged ou the lower surface, tomentose while young, pale blue-green, 3°-4° long. Flowers: spadix usually about 6° long, spreading and gracefully incurved, with spathes more or less coated with hoary tomentum, large compressed primary branches, and short bright orange-colored flower-bearing branches. Flowers on short thick disk-like pedicels, about -|' long, white, slightly fragrant, with a tubular perianth, the lobes broadly ovate and acute, stamens with nearly triangular filaments united at the base, and a flat stigma. Fruit Jg' to nearly l' in diameter; seeds brown, y^ in diameter, penetrated only to the middle by the basal cavity. A tree, with a stem often 25° high and 10'-14' in diameter, raised on a base of thick matted roots 2°-3° high and 18'-20' in diameter, and a broad head of leaves, the upper erect, the lower pendulous and closely pressed against the stem. Distribution. Dry sandy soil close to the beach on the north side of the largest of the Marquesas Keys, and on Crab Key, a small island to the westward of Torch Key, one of the Bahia Honda group, Florida; on the Bahamas. 3. Thrinax microcarpa, Sarg. Silver-top Palmetto. Brittle Thatch. Leaves 2°-3° across, pale green above, silvery white below, more or less thickly coated while young with hoary tomentum, especially on the lower surface, divided near the base almost to the rachis, with orbicular thick concave ligules lined with a thick coat of white tomentum; their petioles thin and flexuose. Flowers: spadix elongated, with short compressed erect branches slightly spreading below, numerous slender pendulous flower-bearing branches, and long acute spathes deeply parted at the apex, coriaceous and coated above the middle with thick hoary tomentum. Flowers on short thick disk-like pedicels, with a cupular perianth, the lobes broadly ovate and acute, stamens with thin nearly triangular exserted filaments slightly united at the base and oblong anthers becoming reversed and extrorse at maturity, and a deep orange-colored ovary narrowed above into a short thick style dilated into a large funnel-formed stigma. Fruit globose, i' in diameter; seeds subglobose, bright to dark chestnut-brown, depressed, penetrated nearly to the middle by the broad basal cavity. A tree, rarely more than 30° high, with a trunk 8'-10' in diameter. Distribution. Dry coral soil, on the shores of Sugar Loaf Sound, and on No Name and Bahia Honda kevs, Florida. 106 TREES OF NORTH AMERICA 2. COCCOTHRINAX, Sarg. Small unarmed trees, with simple or clustered stems or rarely stemless. Leaves orbicular, or truncate at the base, pale or silvery white on the lower surface, divided into narrow obliquely-folded segments acuminate and divided at the apex; rachises narrow; ligules thin, free, erect, concave, pointed at the apex; petioles compressed, slightly rounded and ridged above and below, thin and smooth on the margins, gradually enlarged below into elongated sheaths of coarse fibres forming an open network covered while young by thick hoary tomentum. Spadix interfoliar, panicu- late, shorter than the leaf-stalks, its primary branches furnished with numerous short slender pendulous flower-bearing secondary branches; spathes numerous, papery, cleft at the apex. Flowers solitary, perfect, jointed on elongated slender pedicels; perianth cup-shaped, obscurely-lobed ; stamens 9, inserted on the base of the perianth, with subulate filaments enlarged and barely united at the base, and oblong anthers; ovary 1-celled, narrowed into a slender style crowned by a funnel-formed oblique stigma; ovule basilar, erect. Fruit a subglobose berry raised on the thickened torus of the flower, with thick juicy black flesh. Seed free, erect, depressed-globose, with a thick hard vertically-grooved shell deeply infolded in the bony albumen; hilum subbasilar, minute; raphe hidden in the folds of the seed-coat; embryo lateral. Coccothrinax is confined to the tropics of the New World. Two species, of which one is stemless, inhabit southern Florida, and at least two other species are scat- tered over several of the West Indian islands. Coccothrinax, from k6kkgs and Thrinax, is in allusion to the berry-like fruit. 1. Coccothrinax jucunda, Sarg. Brittle Thatch. Leaves nearly orbicular, the lower segments usually parallel with the petiole, thin and brittle, 18'-24:' in diameter, divided below the middle of the leaf or toward its base nearly to the ligule, with much-thickened bright orange-colored midribs and mar- gins, pale yellow-green and lustrous on the upper surface, bright silvery white and coated at first on the lower surface with hoary deciduous pubescence, with thin undu- late obtusely short-pointed dark orange-colored rachises, thin concave crescent-shaped often oblique slightly undulate short-pointed and light or dark orange-colored ligules PALM^ 107 I' wide, y deep, their petioles slender, pale, yellow-green, 2^°-3° long. Flovrers : spadix 18'-24' long, with flattened stalks, slender much-flattened primary branches 8'-10' long and light orange-colored slender terete flower-bearing branches 1^-3' long, and pale reddish brown spathes coated toward the ends with pale pubescence. Flowers opening in June and irregularly also in the autumn on ridged spreading pedicels 4' long, with an orange-colored ovary surmounted by an elongated style dilated into a rose-colored stigma. Fruit ripening at the end of six months, from ^'-¥ in diameter, bright green at first when fully grown, becoming deep violet color, with succulent very juicy flesh, ultimately black and lustrous; seeds light tawny brown. A tree, with a stem slightly enlarged from the ground upward, 15°-25° high, 4'-6' thick, covered with pale blue rind, and surmounted by a broad head of leaves at first erect, then spreading and ultimately pendulous. Wood used for the piles of small wharves and turtle crawls. The soft tough young leaves are* made into hats and baskets. Distribution. Dry coral ridges and sandy flats from the shores of Bay Biscayne along many of the southern keys to the Marquesas group, Florida. 3. SABAL, Adans. Palmetto. Unarmed trees, with stout columnar stems covered with red-brown rind. Leaves flabellate, tough and coriaceous, divided into many narrow long-pointed parted segments plicately folded at the base, often separating on the margins into narrow threads; rachises extending nearly to the middle of the leaves, rounded and broadly winged toward the base on the lower side, thin and acute on the upper side; ligules adnate to the rachises, acute, concave, with thin incurved entire margins; petioles rounded and concave on the lower side, conspicuously ridged on the upper side, acute and entire on the margins, with elongated chestnut-brown shining sheaths of stout fibres. Spadix interfoliar, stalked, decompound, with a flattened stem, short branches, slender densely flowered ultimate branches, and numerous acuminate spathes, the outer persistent and becoming broad and woody. Flowers solitary, perfect, calyx tubular, unequally lobed, the lobes slightly imbricated in the bud; corolla deeply lobed, with narrow ovate-oblong concave acute lobes valvate at the apex in the bud; stamens 6, those opposite the corolla-lobes rather longer than the others, with subu- late filaments united below into a shallow cup adnate to the tube of the corolla and ovate anthers, their cells free and spreading at the base; ovary of 3 carpels, 3-lobed, 3-celled, gradually narrowed into an elongated 3-lobed style truncate and stigmatic at the apex; ovule basilar, erect. Fruit a small black 1 or 2 or 3-lobed short-stemmed berry with thin sweet dry flesh. Seed depressed-globose, marked on the side by the prominent micropyle, with a shallow pit near the minute basal hilum, a thin seed-coat, and a ventral raphe; embryo minute, dorsal, in horny uniform albumen penetrated by a hard shallow basal cavity filled by the thickening of the seed-coat. Sabal belongs to the New World, and is distributed from the Bermuda Islands and the south Atlantic and Gulf states of North America, through the West Indies to Venezuela and Mexico. Of the eight species now recognized four inhabit the United States; of these two are small stemless plants. The generic name is of uncertain origin. 108 TREES OF NORTH AMERICA CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Spadix short ; fruit subglobose, 1-celled ; seed-coat light chestnut color. 1. S. Palmetto (C). Spadix elongated ; fruit often 2 or 3-lobed, with 2 or 3 seeds ; seed-coat dark chestnut- brown. 2. S. Mexicana (E). 1. Sabal Palmetto, R. & S. Cabbage Tree. Cabbage Palmetto. Leaves 5°-6° long and 7°-8° broad, dark green and lustrous, deeply divided into narrow parted recurved segments, with ligules 4' long; their petioles 6°-7° long and 1^' wide at the apex. Flowers : spadix 2°-2l° long, with slender incurved branches, slender ultimate divisions, and thin secondary spathes flushed with red at the apex and conspicuously marked by pale slender longitudinal veins. Flowers in the axils of minute deciduous bracts much shorter than the perianth, opening in June. Fruit ripening late in the autumn, subglobose or slightly obovate, gradu- ally narrowed at the base, 1-seeded, about ^' in diameter ; seeds light bright chestnut- colored, ^' broad. A tree, with a trunk often 30°-40° high, and 2° in diameter, broken by shallow irregular interrupted fissures into broad ridges, with a short pointed knob-like under- ground stem surrounded by a dense mass of contorted roots often 4° or 5° in diameter and 5° or 6° deep, from which tough light orange-colored roots often nearly ^' in diameter penetrate the soil for a distance of 15° or 20°, and a broad crown of leaves at first upright, then spreading nearly at right angles with the stem, and finally pendu- lous. Wood light, soft, pale brown, with numerous hard fibro-vascular bundles, the outer rim about 2' thick and much lighter and softer than the interior. In the south- ern states the trunks are used for wharf-piles, and polished cross sections of the stem sometimes serve for the tops of small tables; the wood is largely manufactured into canes. From the sheaths of young leaves the bristles of scrubbing-brushes are made. The large succulent leaf-buds are cooked and eaten as a vegetable, and coarse hats, mats, and baskets are made from the leaves. Pieces of the spongy bark of the stem are used as a substitute for scrubbing-brushes. Distribution. Sandy soil in the immediate neighborhood of the coast from Smith Island at the mouth of Cape Fear River, North Carolina, to Key Largo, PALM^ 109 Florida, and along the Gulf coast to the mouth of the Appalachicola River; most abundant and of its largest size on the west coast of the Florida peninsula. Occasionally cultivated for ornament in the cities of the south Atlantic states. 2. Sabal Mesiicana, Mart. Palmetto. Leaves dark yellow-green and lustrous, 5°-6° long, often 7° wide, divided nearly to the middle into narrow divided segments, with thickened pale margins sepa- rating into long thin fibres, with ligules about 6' long, their petioles 7°-8° long, 1^' wide at the apex. Flowers : spadix 7°-8° long, with stout ultimate divisions. Flowers in Texas appearing in March or April in the axils of persistent bracts half as long as the perianth. Fruit ripening early in the summer, globose, often 2 or 3-lobed; seeds nearly ^' broad and Y wide, dark chestnut-brown, with a broad shallow basal cavity and a conspicuous orange-colored hilum. A tree, with a trunk 30°-o0° high, often 2i° in diameter, and a broad head of erect ultimately pendulous leaves. Wood light, soft, pale brown tinged with red, with thick light-colored rather inconspicuous fibro-vascular bundles, the outer rim V thick, soft, and light-colored. On the Gulf coast the trunks are used for wharf -piles, and on the lower Rio Grande the leaves for the thatch of houses. Distribution. Rich soil of the bottom-lands near the mouth of the Rio Grande in Texas, and southward in Mexico in the neighborhood of the coast. Frequently planted as a street tree in the towns on the lower Rio Grande. 4. WASHINGTONIA. H. Wendl. Trees, with stout columnar stems and broad crowns of erect and spreading finally pendulous leaves. Leaves flabellate, divided nearly to the middle into many narrow deeply parted recurved segments separating on the margins into numerous slender pale fibres ; rachises short, slightly rounded on the back, gradually narrowed from a broad base, with concaved margins furnished below with narrow erect wings, and slender and acute above; ligules elongated, oblong, thin and laciniate on the margins; petioles elongated, broad and thin, flattened or slightly concave on the upper side, rounded on the lower, armed irregularly with broad thin large and small straight or hooked spines confluent iuto a thin bright orange-colored cartilaginous margin, 110 TREES OF NORTH AMERICA gradually enlarged at the base into thick broad concave bright chestnut-brown sheaths composed of a network of thin strong iibres. JSpadix interfoliar, stalked, elongated, paniculate, with pendulous flower-bearing ultimate divisions and numerous long spathes. Flowers perfect, jointed on thick disk-like pedicels; calyx tubular, scarious, thickened at the base, gradually enlarged and slightly lobed at the apex, the lobes imbricated in the bud; corolla funnel-formed, with a fleshy tube inclosed in the calyx and about half as long as the lanceolate lobes, thickened and glandular on the inner surface at the base, imbricated in the bud; stamens inserted on the tube of the corolla, with free filaments thickened near the middle and linear-oblong anthers; ovary 3-lobed, 3-celled, with slender elongated flexuose styles stigmatic at the apex; ovules lateral, erect. Fruit a small ellipsoidal short-stalked black berry with thin dry flesh. Seed free, erect, oblong-ovate, concave above, with a flat base depressed in the centre, a minute sublateral liilum, a broad conspicuous rachis, a minute lateral micropyle, and a thin pale chestnut-brown inner coat closely investing the simple horny albumen; embryo minute, lateral, with the radicle turned toward the base of the fruit. • Two species of Washingtonia are known: one inhabits the interior dry region of southern California and the adjacent parts of Lower California, and the second the mountain canons of western Sonora and southern Lower California. The genus is named for George Washington. 1. Washingtonia filamentosa, O. Kuntze. Desert Palm. Fan Palm. Leaves 5°-6° long and 4°-5° wide, light green, slightly tomentose on the folds, their petioles 4°-6° long and about 2' broad at the apex, with sheaths 16'-18' long and 12'-14' wide, and ligules 4' long and cut irregularly into long narrow lobes. Flowers: spadix 10°-12° long, 3 or 4 being produced each year from the axils of upper leaves, the outer spathe inclosing the bud, narrow, elongated, and gla- brous, those of the secondary branches coriaceous, yellow tinged with brown, and laciniate at the apex. Flowers slightly fragrant, opening late in May or early in June. Fruit produced in great profusion, ripening in September, 1' long; seeds Y long, 1' thick. A tree, occasionally 75° high, with a trunk sometimes 50°-60° tall and 2°-3° in diameter, covered with a thick light red-brown scaly rind and clothed with a thick PALM^ 111 thatch of dead pendant leaves descending in a regular cone from the broad crown of living leaves sometimes nearly to the ground. "Wood light and soft, with numerous conspicuous dark orange-colored fibro-vascular bundles. The fruit is gathered and used as food by the Indians. Distribution. Often forming extensive groves or small isolated clumps in wet usually alkali soil in depressions of the Colorado Desert in southern California, sometimes extending for several miles up the caiions of the San Bernardino and San Jacinto mountains, and in Lower California. Now largely cultivated in southern California, southern Europe, and other tem- perate regions. 5. SERENOA, Hook. f. Unarmed trees and shrubs, with tall often clustered stems, or on one species with subterranean stems. Leaves semiorbicular, truncate at the base, coriaceous, divided from the apex to below the middle into numerous parted segments ob- liquely folded at the base; rachises short, acute; ligules thin, concave, abruptly short-pointed, with a broad thin dark red deciduous border; petioles slender, flat on the upper, rounded and ribbed on the lower surface, denticulate on the margins, with thin light mahogany-red sheaths of slender fibres. Spadix interfoliar, pani- culate, elongated, with a slender compressed stem and numerous slender elongated gracefully drooping flat branches coated with hoary tomentum, slender terete flower- bearing secondary branches, and flattened clavate spathes furnished at the apex with a thin red-brown border. Flowers perfect, sessile, solitary, or in 2 or 3-flow- ered clusters; calyx unequally lobed, the lobes valvate in the bud; corolla parted nearly to the base, its divisions valvate in the bud, oblong, thick, concave, acute, grooved on the inner surface with 2 or 3 deep depressions; stamens with nearly triangular filaments united below into a cup adnate to the tube of the corolla, and short-oblong anthers ; ovary of 3 carpels, free below, united above into a long slen- der style tipped with a minute stigma; ovule erect from the bottom of the cell. Fruit a 1-seeded black drupe, the outer coat thin and fleshy, the inner orange- brown, resinous, fibrous, and strong-smelling, closely investing the pale brown thin- shelled nut. Seed erect, with a hard chestnut-brown coat, lighter-colored with a conspicuous mark on the ventral side, a small subbasilar hilum, and an elongated ventral raphe; embryo lateral in homogeneous albumen. Serenoa, with two species, is confined to the south Atlantic and Gulf region of North America. One species is arborescent, the other is a low shrub often occupying wide areas of sandy barren soil from South Carolina to Louisiana. Serenoa commemorates the botanical labors of Sereno Watson. 1. Serenoa arborescens, Sarg. Leaves about 2° in diameter, light yellow-green on the upper surface, blue-green on the lower surface, divided nearly to the base into numerous lobes, slightly thick- ened at the pale yellow midribs and margins, their petioles 18'-24' long, armed with stout flattened curved orange-colored teeth. Flowers: spadix 3°-4° long, with a slender much-flattened stalk, panicled lower branches 18'-20' in length, and 6-8 thick firm pale green conspicuously ribbed spathes deeply divided and dilated at the apex into a narrow membranaceous border. Flowers solitary toward the ends of the branches and in 2 or 3-flowered clusters at their base, with a light chest- nut-brown calyx and a pale yellow-green corolla. Fruit globose, |' in diameter; 112 TKEES OF NORTH AMERICA seeds subglobose, somewhat flattened below, with a pale vertical mark on the lower side, and a minute hilum joined to the mieropyle by a pale band. A tree, from 30°-40° high, with 1 or several clustered erect inclining or occa- sionally semiprostrate stems 3' -4' in diameter, covered almost to the ground by the closely clasping bases of the leaf-stalks and below with a thick pale rind. Distribution. Low undrained soil covered for many months of every year in water from l'-18' deep, occasionally occupying almost exclusively areas of several acres in extent or more often scattered among Cypress-trees or Royal Palms, in the swamps and along the hummocks adjacent to the Chokoloskee River and its tribu- taries in southwestern Florida. 6. ROYSTONEA, Cook. Royal Palm. Unarmed trees, with massive stems enlarged near the middle, and terminating in long slender bright green cylinders formed by the densely imbricated sheaths of the leaf-stalks. Leaves equally pinnate, with linear-lanceolate long-pointed un- equally cleft plicately-f olded pinnae inserted obliquely on the upper side of the rachis, folded together at the base, with thin midribs and margins; rachises convex on the back, broad toward the base of the leaf and acute toward its apex; petioles semi- cylindrical, gradually enlarged into thick elongated green sheaths. Spadix large, decompound, produced near the base of the green part of the stem, with long pendulous branches and 2 spathes, the outer semicylindrical and as long as the spadix, the inner splitting ventrally and inclosing the branches of the spadix. Flowers monoecious, in a loose spiral, toward the base of the branch in 3-flowered clusters, with a central staminate and smaller lateral pistillate flowers, higher on the branch the staminate in 2-flowered clusters; calyx of the staminate flower of minute broadly ovate obtuse scarious sepals imbricated in the bud, much shorter than the corolla; petals nearly equal, valvate in the bud, ovate or obovate, acute, slightly united at the base, coriaceous; stamens 6, 9, or 12, with subulate filaments united below and adnate to the base of the corolla, and large ovate-sagittate anthers, the cells free below; ovary rudimentary, subglobose or 3-lobed; pistillate flowers much smaller, ovoid-conical; sepals obtuse; corolla erect, divided to the middle into acute PALM^ 113 erect lobes incurved at the apex; starainodia 6, scale-like, united into a cup adnate to the corolla; ovary subglobose, obscurely 2 or 3-lobed, 2 or 3-celled, gibbous, the cells crowned with a 3-lobed stigma becoming subbasilar on the fruit; ovule ascending. Fruit a short-stalked drupe with thin crustaceous flesh. Seed oblong-reniform, marked by the conspicuous fibrous reticulate branches of the raphe radiating from the narrow basal hilum, and covered with a thin crustaceous coat; embryo minute, cylindrical, lateral, in uniform albumen. Roystonea is confined to the tropics of the New World, where two or three species occur. The genus as here limited was named for General Roy Stone of the United States army. 1. Roystonea regia, Cook. Royal Palm. (Oreodoxa regia, Silva N. Am. x. 31.) Leaves 10°-12° long, closely pinnate, the pinnae 2^°-3° long, 1^' wide near the base of the leaf, and gradually decreasing in size toward its apex, deep green with slender conspicuous veins, and covered below with minute pale glandular dots, their petioles almost terete, concave near the base, with thin edges separating irregularly into pale fibres, and enlarged into bright green cylindrical clasping bases 8° or 9° long and more or less covered with dark chafipy scales. Flo"wers : spadix about 2° long, with a nearly terete peduncle and slightly ridged primary and secondary branches compressed above, abruptly enlarged at the base, and simple slender flexuose long- pointed flower-bearing brauchlets 3'-6' long, pendant and closely pressed against the secondary branches. Flowers opening in Florida in January and February, the staminate nearly ^' long and rather more than twice as long as the pistillate. Fruit oblong-obovate, full and rounded at the apex, narrowed at the base, violet-blue, about ^' long, with a thin outer coat and a light red-brown inner coat, loose and fibrous on the outer surface, and closely investing the thin light brown seed. A tree, 80°-100° high, with a trunk rising from an abruptly enlarged base, grad- ually tapering from the middle to the ends and often 2° in diameter, covered with light gray rind tinged with orange color, marked with dark blotches and irregularly broken into minute plates, the green upper portion 8°-10° long, and a broad head of gracefully drooping leaves. Wood of the interior of the stem spongy, pale brown, 114 TREES OF NORTH AMERICA much lighter than the hard exterior rim, containing numerous dark conspicuous fibro- vascular bundles. The outer portion of the stem is made into canes, and the trunks are sometimes used for wharf-piles and in construction. Distribution. Florida, hummocks on Rogue River twenty miles east of Caximbas Bay, Long's Key, and the shores of Bay Biscay ne near the mouth of Little River; common in the West Indies and Central America. Largely cultivated as an ornamental tree in tropical countries, and often planted to form avenues, for which its tall pale columnar stems and noble heads of graceful foliage make it valuable. 7. PSEUDOPHCENIX, H. Wendl. A tree, with a slender stem abruptly enlarged at the base or tapering from the middle to the ends, covered with thin pale blue or nearly white rind, and conspicu- ously marked by the dark scars of fallen leaf -stalks. Leaves erect, abruptly pinnate, with crowded linear-lanceolate acuminate leaflets increasing in length and width from the ends to the middle of the leaf, thick and firm in texture, dark yellow-green above, pale and glaucous below; rachises convex on the lower side, concave on the upper side near the base of the leaf, with thin margins, becoming toward the apex of the leaf flat and narrowed below and acute above, marked on the sides at the base with dark gland-like excrescences; petioles short, concave above, with thin entire margins separating into slender fibres, gradually enlarged into broad thick sheaths of short brittle fibres. Spadix interfoliar, compound, pendulous, stalked, much shorter than the leaves, with spreading primary branches, stout and much flattened toward the base, slender and rounded above the middle, furnished at the base with a thickened ear-like body, slender secondary branches, short thin rigid densely flow- ered ultimate divisions, and compressed light green double spathes eroded on their thin dark brown margins. Flowers unknown. Fruit a stalked globose 2 or 3-lobed orange-scarlet thin-fleshed drupe marked by the lateral style and surrounded below by the withered remnants of a 3-lobed calyx, oblong reflexed petals, and 6 slender spreading staminodia tipped with abortive anthers; peduncle abruptly enlarged at the base, articulate from a persistent cushion-like body furnished in the centre with LILIACE^ 115 a minute point penetrating a cavity in the base of the peduncle. Seed subglobose, free, erect, with a basal hilum and a thin light red-brown coat marked by the pale conspicuous ascending 2 or 3-branched raphe; embryo minute, basal, in uniform horny albumen. PseudophoBnix with a single species inhabits the keys of southern Florida, and the Bahamas. The generic name is in allusion to a fancied resemblance to Phoenix, a genus of Palms. 1. Pseudophoenix Sargenti, H. Wendl. Leaves 5°-6° long, with pinnae often 18' long and V wide near the middle of the leaf, becoming at its extremities not more than half as long and wide; their petioles 6'-8' in length. Flovrers : spadix 3° long and 2\° wide. Fruit ripening in May and June, ^'-f in diameter on a peduncle ^ long; seeds \' in diameter. Distribution. Florida, east end of Elliott's Key, and east end of Key Largo near the southern shore, here forming a grove of 200 or 300 plants. Occasionally cultivated in the gardens of southern Florida. IV. LILIACE-53. (yucce.) Leaves, alternate, linear-lanceolate. Flowers in terminal panicles ; sepals and petals nearly similar, subequal, withering-persistent ; ovary with more or less deeply introduced dorsal partitions ; ovules numerous, 2-ranked in each cell ; embryo subulate, obliquely placed across the seed ; cotyledon arched in germination. Yuccse as here limited consists of two American genera, Hesperaloe, with two species, low plants of Texas and Mexico, and Yucca. 1. YUCCA, L. Trees, with simple or branched stems prolonged by axillary naked buds, dark thick corky bark, light fibrous wood in concentric layers, and large stout horizontal roots. Leaves involute in the bud, at first erect, usually becoming reflexed, abruptly narrowed above the broad thickened clasping base, usually widest near the middle, concave on the upper surface, involute toward the horny usually sharp-pointed apex, convex and often slightly keeled toward the base on the lower surface, the margins serrulate or filamentose, light or dull green. Flowers fertilized by insects and open- ing for a single night, on slender pedicels in 2 or 3-flowered clusters or singly at the base of the large compound panicle furnished with conspicuous leathery white or slightly colored bracts, those at the base of the pedicels thin and scarious; perianth cup-shaped, with thick ovate-lanceolate creamy white segments more or less united at the base, usually furnished with small tufts of white hairs at the apex, those of the outer rank narrower, shorter, and more colored than the more delicate petal-like segments of the inner rank; stamens 6, in 2 series, free, shorter than the ovary {as long in 1), white, with club-shaped fleshy filaments, obtuse and slightly 3-lobed at the apex, and cordate emarginate anthers attached on the back, the cells opening longitudinally, curling backward and expelling the large globose powdery pollen- grains; ovary oblong, 6-sided, sessile or stalked, with nectar-glands within the par- titions, dull greenish white, 3-celled, gradually narrowed into a short or elongated 116 TREES OF NORTH AMERICA 3-lobed ivory-white style forming a triangular stigmatic tube. Fruit oblong or oval, more or less distinctly 6-angled, 6-celled, usually beaked at the apex, baccate and indehiscent or capsular and 3-valved, the valves finally separating at the apex; peri- carp of 2 coats, the outer at maturity thick, succulent and juicy, thin, dry and leathery, or thin and woody. Seeds compressed, triangular, obovate or obliquely ovate or orbicular, thick, with a narrow 2-edged rim, or thin, with a wide or narrow brittle margin; seed-coat thin, black, slightly rugose or smooth; embryo in plain or rarely ruminate hard farinaceous oily albumen; cotyledon much longer than the short radicle turned toward the small oblong white hilum. Yucca is confined to the New World and is distributed from Bermuda and the eastern Antilles, through the south Atlantic and Gulf states, and through New Mex- ico and northward along the eastern base of the Rocky Mountains to South Dakota, westward to middle California, and southward through Arizona, Mexico, and Lower California to Central America. About thirty species with many varieties and probable hybrids are recognized. Of the species which inhabit the territory of the United States nine assume the habit and attain the size of small trees. The root-stalks of Yucca are used as a substitute for soap, and ropes, baskets, and mats are made from the tough fibres of the leaves. Many of the species are cultivated, especially in countries of scanty rainfall, for their great clusters of beautiful flowers, or in hedges to protect gardens from cattle. The generic name is from the Carib name of the root of the Cassava. CONSPECTUS OF THE ARBORESCENT SPECIES OF THE UNITED STATES. Flower-clusters usually sessile, or short-stalked. Fruit pendulous, with thick succulent flesh ; seeds thick ; albumen ruminate. Segments of the perianth slightly united at the base. Panicle glabrous or puberulous. Ovary stipitate. Leaves sharply toothed on their horny margins, smooth, dark green, slightly con- cave. 1. Y, aloifolia (C). Ovary sessile. Leaves concave, blue-green, rough on the lower siirfaee. 2. Y. Treculeana (E). Leaves concave above the middle, smooth, light yellow-green. Style elongated. 3. Y. macrocarpa (E, H). Style short. 4. Y. Mohavensis (G, H). Panicle coated with hoary tomentum. Leaves concave, smooth, light yellow.-green. 5. Y. Schottii (H). Segments of the perianth united below into a narrow tube. ■ Leaves flat, smooth, dark green. 6. Y. Faxoniana (E). Fruit erect or spreading, the flesh becoming thin and dry at maturity ; seeds thin ; albu- men entire. Leaves concave above the middle, blue-green, sharply serrate. 7. Y. arborescens (F, G). Leaves thin, flat or concave toward the apex, rough on the lower surface, dull or glaucous green, more or less plicately folded. 8. Y. gloriosa (C). Flower-clusters long-stalked ; fruit capsular, erect, finally splitting between the carpels and through their backs at the apex ; seeds thin ; albumen entire. Leaves thin, flat, filamentose on the margins, smooth, pale yellow-green. 9. Y. radiosa (E, H). LILIACE^ 117 1. Fruit with thick succulent flesh. * Segments of the flower slightly united at the base. 1. Yucca aloifolia, L. Spanish Bayonet. Leaves 18'-32' long, l^-^i' wide, erect, rigid, conspicuously narrowed above the light green base, widest above the middle, slightly concave on the upper surface, smooth, dark rich green, with stiff dark red-brown spines and horny finely and ir- regularly serrate margins; long-persistent. Flowers from June until August on stout pedicels, in nearly sessile glabrous or slightly pubescent panicles 18'-24' long; perianth V-l\' in length and 3' or 4' across when fully expanded, the segments ovate, thick and tumid toward the base, those of the outer rank rounded and often marked with purple at the apex, the inner acuminate and short-pointed; stamens as long or sometimes a little longer than the light green ovary raised on a short stout stipe. Fruit ripening from August to October, elongated, elliptical, hexagonal, 3'-4' long, l^'-l^' thick, light green when fully grown, and in ripening turning dark purple, the outer and inner coats forming a thick succulent mass of bitter- sweet juicy flesh, finally becoming black and drying on its stalk; seeds \'-y broad, about -^q' thick, with thin narrow ring-like borders to the rim. A tree, occasionally 25° high, usually much smaller, with an erect or more or less inclining simple or branched trunk slightly swollen at the base, and rarely more than 6' in diameter; sometimes with numerous clustered stems. Bark near the base of the trunk thick, rough, dark brown, marked above by scars left by falling leaves. Distribution. Sand dunes of the coast from North Carolina to eastern Louisi- ana ; west of the Appalachicola River attaining its largest size and sometimes ranging inland through Pine forests for thirty or forty miles. A common garden plant in all countries with a temperate climate, and long natu- ralized in some of the West Indian islands and on the Gulf coast of Mexico. Forms with leaves variously striped with white, yellow, and red are frequent in cultivation. 2. Yucca Treculeana, Carr. Spanish Bayonet. Spanish Dagger. Leaves 2^°-4° long, 2'-3^' wide, slightly or not at all contracted above the dark red lustrous base, concave, stiff, rigid, dark blue-green, rough on the lower sur- 118 TREES OF NORTH AMERICA face, nearly smooth on the uj)per, with short stout dark red-hrown spines and dark brown margins roiigliened by minute deciduous teeth and idtimately separating into slender dark fibres; persistent for many years, the dead leaves hanging closely appressed against the trunk below the terminal crown of closely imbricated living leaves. Flow^ers in March and April on slender pedicels, in dense many-tlowered glabrous or puberulous panicles 2°-4° long and raised on short stout stalks; peri- anth l'-2' long, 2'-4' in diameter when fully expanded, with narrow elongated ovate- lanceolate to ovate segments, |' wide, acute, thin and delicate, furnished at the apex with conspicuous tufts of short pale hairs; filaments slightly papillose, about as long as the prismatic ovary gradually narrowed above and crowned by the deeply divided stigmatic lobes. Fruit ripening in the summer, S'-l' long, about V thick, dark reddish brown or ultimately black, with thin succulent sweetish flesh; seeds about 1' broad, nearly Jg' thick, with narrow borders to the rim. A tree, occasionally 25°-30° high, with a trunk sometimes 2° in diameter and numerous stout wide-spreading branches; usually smaller and often forming broad low thickets 4°-5° tall. Bark on old trunks j-^' thick, dark red-brown and broken into thin oblong plates covered by small irregular closely appressed scales. "Wood light brown, fibrous, spongy, heavy, difficult to cut and work. Distribution. Shores of Matagorda Bay, southward through western Texas into Nuovo Leon, and through the valley of the Rio Grande to the eastern base of the mountains of western Texas; forming open stunted forests on the coast dunes at the mouth of the Rio Grande ; farther from the coast often spreading into great im- penetrable thickets. Cultivated as an ornamental plant in the gardens of central and western Texas, and occasionally in those of southern Europe. 3. Yucca macrocarpa, Coville. Spanish Dagger. Leaves ll°-2° long, l'-2' wide, gradually narrowed from the dark red lustrous bases to above the middle, rigid, concave, yellow-green, rough on the lower surface and frequently also on the upper surface, with stout elongated dark spines and thick- ened margins separated into stout gray filaments. Flo"wers in March and April in densely flowered sessile or short-stalked glabrous or occasionally pubescent panicles; perianth usually about 2' long, with acuminate segments, those of the outer and LILIACEJi 119 inner rows nearly of the same size; stamens shorter than the elongated style. Fruit 3'-4' long, about 1^' thick, abruptly contracted at the apex into a stout point, nearly black when fully ripe, with sweet succulent flesh; seeds about ^' wide, ^' thick, with narrow borders to the rim. A tree, rarely exceeding 15° in height, with a usually simple stem 6'-8' in diameter, and often clothed to the ground with living leaves. Bark dark brown and scaly. Distribution. Arid plains from western Texas to eastern Arizona and southward in Chihuahua. 4. Yucca Mohavensis, Sarg. Spanish Dagger. Leaves 18'-20' long, about 1^' wide, abruptly contracted above the dark red lus- trous base, gradually narrowed upward to above the middle, thin and concave except pi^.'io^ toward the slightly thickened base of the blade, dark green, smooth on both sur- faces, with stout rigid sharp-pointed tips and entire bright red-brown margins soon separating into numerous long thick pale filaments. Flowers from March to 120 TREES OF NORTH AMERICA May on slender erect ultiniiitely. drooping pedicels I'-IV long, in densely flowered sessile or short-stemmed panicles 12'-18' in length ; perianth l'-2' long, the seg- ments nuited at the base into a short tnbe, thickened and hood-shaped at the apex, those of the outer rank often deeply flushed with purple, but little longer than the less prominently ribbed usually wider and thinner segments of the inner rank; stamens with more or less pilose fllaments nearly as long as the short style. Fruit ripening in August and September, 3'-4' long, about 1^' thick, usually much con- stricted near the middle, abruptly contracted at the apex into a short stout point, dark dull brown or nearly black, with flesh often nearly ^' thick; seeds ^' wide, rather less than ^' thick, with narrow borders to the rim. A tree, rarely exceeding 15° in height, with a trunk usually simple or occasionally furnished with short spreading branches, and 6'-8' in diameter, usually sur- rounded by a cluster of shorter more or less spreading stems and often clothed to the ground with living leaves. Bark dark brown and scaly. Wood soft, spongy, light brown. Distribution. Southern Nevada and northwestern Arizona across the Mohave Desert to the California coast, extending northward to the neighborhood of Monterey, California, and southward into northern Lower California; common and attaining its largest size on the Mohave Desert, and sometimes ascending arid mountain slopes to elevations of 4000° above the sea. 5. Yucca Schottii, Engelm. Spanish Dagger. Leaves 2i°-3° long, about 1^ wide, gradually narrowed upward from the com- paratively thin lustrous red base to above the middle, flat except toward the apex, smooth, light yellow-green, with long rigid sharp light red points and thick entire red-brown margins finally separating into short thin brittle threads. Flowers from July to September in erect stalked tomentose panicles; perianth l'-l|' long, the broad oval or oblong-obovate thin segments pubescent on the outer surface toward the base and furnished at the apex with conspicuous clusters of white tomentum; stamens about two thirds as long as the ovary, with filaments pilose at the base, and only slightly enlarged at the apex. Fruit ripening in October and November, obscurely angled, 3^'-4' long, about 1^' thick, often narrowed above the middle, with LILIACE^ 121 a stout thick point, and thin sweet succulent flesh; seeds ^' broad, about \' thick, with thin conspicuous marginal rims. A tree, in Arizona rarely 18°-20° high, with a trunk often crooked or slightly inclining and simple or furnished with 2 or 3 short erect branches, covered below with dark brown scaly bark, roughened for many years by persistent scars of fallen leaves, and clothed above by the pendant dead leaves of many seasons. Distribution. Dry slopes of the mountain ranges of Arizona near the Mexican boundary, usually at elevations between 5000° and 6000°, and southward through Sonora. **Segments of the flowers united below into a narrow tube. 6. Yucca Faxoniana, Sarg., nov. nom. Spanish Dagger. ( Yucca macrocarpa, Silva N. Am. x. 13.) Leaves 2-|°-4° long, 2^' -3' wide, abruptly contracted above the conspicuously thickened lustrous base, widest above the middle, flat on the upper surface, thick- ened and rounded on the lower surface toward the base, rigid, smooth and clear dark green, with short stout dark spines and brown entire margins breaking into numer- al (^. 106 ous stout gray or brown fibres short and spreading near the apex of the leaf, longer, more remote, and forming a thick cobweb-like mass at their base. Flowers appear- ing in April on thin drooping pedicels, in dense many-flowered glabrous panicles 3°-4° long, with elongated pendulous branches; perianth 2\' long, the segments thin, concave, widest above the middle, narrowed at the ends, united at the base into a short tube, those of the outer rank being about half as wide as those of the inner rank and two thirds as long; stamens much shorter than the ovary, with slender filaments pilose above the middle and abruptly dilated at the apex; ovary con- spicuously ridged, light yellow marked with large pale raised lenticels, and gradually narroAved into an elongated slender style. Fruit ripening in early summer, slightly or not at all angled, abruptly contracted at the apex into a long or short hooked beak, 3'— 4' long, V-iy thick, light orange-colored and lustrous when first ripe, becoming nearly black, with thick succulent bitter-sweet flesh; seeds ^ long, about 1' thick, with narrow nearly obsolete margins to the rim. A tree, often 40° high, with a trunk sometimes 2° in diameter above the broad 122 TREES OF NORTH AMERICA abruptly enlarj^ed base, imbranched or divideU into several short branches, and covered above by a thick thatch of the pendant dead leaves of many seasons; fre- quently smaller and until ten or twelve years old clothed from the ground with erect living leaves. Bark near the base of old trees dark reddish brown, ^'-^' thick, broken on tlie surface into small thin loose scales. Distribution. Common on the high desert plateau of southwestern Texas. 2. Fruit with thin dry Jlesh, 7. Yucca arborescens, Trel. Joshua Tree. Leaves 5'-8' or on young plants rarely 10'-12' long, \'-\' wide, rigid, crowded in densely imbricated clusters, lanceolate, gradually tapering from the bright red- brown lustrous base, bluish greeu and glaucous, smooth or slightly roughened, con- P'^. 107 cave above the middle, with sharp dark brown points, and thin j^ellow margins armed with sharp minute teeth; persistent for many years. Flowers appearing from March until the beginning of May, the creamy white closely imbricated bracts of the nearly sessile pubescent panicle forming before its appearance a conspicuous cone-like bud 8' or 10' long ; perianth globose to oblong, l'-2' long, greenish white, waxy, dull or lustrous, its segments slightly united at the base, keeled on the back, thin below the middle, gradually thickened upward into the concave incurved rounded tip, those of the outer rank rather broader, thicker, and more prominently keeled than those of the inner rank, glabrous or pubescent; stamens about half as long as the ovary, with filaments villose-papillate from the base; ovary conical, 3-lobed above the middle, bright green, with narrow slightly developed septal nectar- glands and a sessile nearly equally 6-lobed stigma. Fruit ripening in May or June, spreading or more or less pendant at maturity, oblong-ovate, acute, slightly 3-angled, 2'-4' long, l^'-2' broad, light red or yellow-brown, the outer coat becoming dry and spongy at maturity; seeds nearly ^ long, rather less than y^' thick, with broad well-developed margins to the rim and large conspicuous hilums. A tree, 30°-^0° high, with a trunk 2°-3° in diameter, rising abruptly from a broad thick basal disk, stout tough roots descending deeply into the soil, and stout branches spreading into a broad, often symmetrical head formed by the continued forking of the branches at the base of the terminal flower-clusters; until 8°-10° LILIACE^ 123 high the stem simple and clothed to the ground with leaves erect until after the ap- pearance of the first flowers, then spreading at right angles and finally becoming reflexed. Bark I'-l^ thick, deeply divided into oblong plates frequently 2° long. "Wood light, soft, spongy, difficult to work, light brown or nearly white; sometimes cut into thin layers and used as wrapping material or manufactured into boxes and other small articles. The seeds are gathered and eaten by the Indians. Distribution. Southwestern Utah to the western and northern rim of the Mo- have Desert in California; most abundant and of its largest size on the foothills on the desert slope of the Tehachapi Mountains. 8. Yucca gloriosa, L. Spanish Dagger. Leaves 2°-2|^° long, gradually narrowed above the broad base and then gradually broadened to above the middle, thin, flat or slightly concave toward the apex, frequently longitudinally folded, dull often glaucous green, roughened on the under surface especially above the middle, with stout dark red points, and pale margins serrulate toward the base of the leaf, with minute early deciduous teeth, or occa- sionally separating into thin fibres. Flo'wers in October, in pubescent or glabrate panicles, 2°-4° long, on stout stalks sometimes 3°-4° in length, their large creamy white bracts forming before the panicle emerges a conspicuous egg-shaped bud 4'-6' long; perianth when fully expanded 3^'— 4' across, its segments thin, ovate, acute, or lance-ovate, often tinged with green or purple, slightly united at the base, pubescent at the apex; stamens about as long as the ovary, with hispid or slightly papillose filaments and deeply emarginate anthers; ovary slightly lobed, 6-sided, light green, gradually narrowed into the elongated spreading stigmatic lobes. Fruit very rarely produced, prominently 6-ridged, pendulous, 3' long, 1' in diameter, cuspidate, raised on a short stout stipe, with a thin leathery almost black outer coat; seeds ^' wide and about jq' thick, with a smooth coat. A tree, with a trunk occasionally 6°-8° high and 4'-6' in diameter, simple or rarely furnished with a few short branches and usually clothed to the base with pend- ant dead leaves; in cultivation often becoming much larger, with a stout trunk covered with smooth light gray bark, and erect or in one form (var. recurvifolia, Eugelm.) pendulous leaves. y: 124 TREES OF NORTH AMERICA Distribution. Sand dunes and the borders of beaches of the South Carolina seacoast. Often cultivated with many forms in the gardens and pleasure-grounds of all temperate countries. 3. Fruit a capsule. 9. Yucca radiosa, Trel. Spanish Dagger. ( Yucca constricta, Silva N. Am. x. 27.) Leaves 20-30' long, l'-^' wide, rigid, gradually narrowed from the thin base, tapering toward the apex, or sometimes somewhat broadest at the middle, thin, flat on the upper surface, slightly thickened and rounded on the lower surface toward F the base, smooth, pale yellow-green, with slender stiff red-brown points, and thick- ened entire pale margins soon splitting into long slender filaments. Flowers in May and June on slender spreading more or less recurved pedicels, in glabrous much- branched panicles 4°-6° long, raised on stout naked stems 3°-7° in length ; perianth ovate and acute in the bud, when fully expanded 3|^'-4' across, its segments united at the base into a short slender distinct tube, ovate or slightly obovate, those of the outer rank usually acute, not more than half as broad as those of the inner rank; stamens as long or a little longer than the ovary, with slender nearly terete filaments; ovary sessile, almost terete, pale green, abruptly contracted into the stout elongated style. Fruit an erect oblong capsule rounded and obtuse at the ends, tipped by a short stout mucro, conspicuously 3-ribbed, with rounded ridges on the back of the carpels, l^'-2' long, I'-l^' wide, with a thin firm light brown ligneous outer coat closely adherent to the lustrous light yellow inner coat, in ripening split- ting from the top to the bottom between the carpels and through their backs at the apex; seeds ^ wide and about jL' thick, with a smooth coat and thin brittle wide margins to the rim. A tree, with a tough much-branched underground stem penetrating deep into the soil and a trunk often 10°-12° high and 7'-8' in diameter, covered above with a thick thatch of the pendant dead leaves of many years, simple, or branched with numerous short stout branches densely covered with leaves at first erect, then spreading nearly at right angles, and finally pendulous. Bark dark brown, irregu- JUGLANDACE^ 125 larly fissured, broken into thin plates, about ^' thick. Wood light, soft, spongy, pale brown or yellow. Distribution. High desert plateaus from southwestern Texas to southern Arizona, southward into northern Mexico; most abundant and of its largest size on the eastern slope of the continental divide in southern New Mexico and along the northern rim of the Tucson Desert in Arizona. Division II. Dicotyledons. Stems formed of bark, wood, or pith, and increasing by the addi- tion of an annual layer of wood inside the bark. Parts of the flower mostly in 4's and 5's ; embryo with a pair of opposite cotyledons. Leaves netted-veined. Subdivision 1. Apetalae. Flowers without a corolla and some- times without a calyx. Section 1. Flowers in unisexual aments (^female flowers of Juglans and Querciis soUtaty or in spikes^ ; ovary inferior (^siqjerior in Leitneviacece) when calyx is present. V. JUGLANDACEiE. Aromatic trees, with watery juice, terete branchlets, scaly buds, the lateral buds usually superposed, 2-4 together, and alternate unequally pinnate decid- uous leaves with elongated grooved petioles, and without stipules, the leaflets increasing in size from the lowest upward, penniveined, sessile, short-stalked or the terminal usually long-stalked. Flowers monoecious, opening after the un- folding of the leaves, the staminate in lateral aments and comj^osed of a 3—6- lobed calyx in the axil of and adnate to an ovate acute bract, and numerous stamens inserted on the inner and lower face of the calyx in 2 or several rows, with short distinct filaments and oblong anthers opening longitudinally ; the pistillate in a spike terminal on a branch of the year and composed of a 1-3- celled ovary subtended by an involucre free toward the apex and formed by the union of an anterior bract and 2 lateral bractlets, a 1 or 4-lobed calyx inserted on the ovary, a short style with 2 plumose stigmas stigmatic on the inner face, and a solitary erect orthotropous ovule. Fruit a nut inclosed in an indehiscent or 4-valved husk, its walls and partitions more or less penetrated by internal longitudinal cavities filled with dry powder. Seed solitary, 2-lobed from the apex nearly to the middle, light brown, its coat thin, of 2 layers, with- out albumen ; cotyledons fleshy and oily, sinuose or corrugated, 2-lobed ; radicle short, superior, filling the apex of the nut. Of the six genera of the Walnut family two occur in North America. CONSPECTUS OF THE NORTH AMERICAN GENERA. Aments of staminate flowers simple, sessile, or short-stalked ; husk of the fruit indehiscent ; nut sculptured ; pith In plates. 1. Juglans. Aments of staminate flowers branched, long-stalked ; husk of the fruit 4-valved ; nut not sculptured ; pith solid. 2. Hicoria. 126 TREES OF NORTH AMERICA 1. JUGLANS, L. Walnut. Trees, with furrowed scaly bark, durable dark-colored wood, stout branchlets, laminate pith, terminal buds with 2 pairs of opposite more or less oj^en scales often obscurely pinnate at the apex, those of the inner pair more or less leaf-like, and ob- tuse slightly flattened axillary buds formed before midsummer and covered with 4 ovate rounded scales, closed or open during winter. Leaves with numerous leaflets, and terete petioles leaving in falling large conspicuous elevated obcordate 3-lobed leaf-scars displaying 3 equidistant U-shaped clusters 6f dark fibro-vascular bundle- scars; leaflets conduplicate in the bud, ovate, acute or acuminate, mostly unequal at the base, with veins arcuate and united near the margins. Aments of the stami- nate flowers many-flowered, elongated, solitary or in pairs from lower axillary buds of upper nodes, appearing from between persistent bud-scales in the autumn and remain- ing during the winter as short cones covered by the closely imbricated bracts of the flowers; calyx 3-6-lobed, its bract free only at the apex; stamens 8-40, in 2 or several ranks, their anthers surmounted by a conspicuous dilated truncate or lobed con- nective; pistillate flowers in few-flowered spikes, their involucre villous, free only at the apex and variously cut into a laciniate border (corolla ?) shorter than the erect calyx-lobes; ovary rarely of 3 carpels; stigmas club-shaped, elongated, fimbriately plumose. Fruit ovoid, globose or pyriform, cylindrical or obscurely 4-angled, with a fleshy indehiscent glabrate or hirsute husk; nut ovoid or globose, more or less flat- tened, hard, thick-walled, longitudinally and irregularly rugose, the valves alternate with the cotyledons, and more or less ribbed along the dorsal sutures and in some species also on the marginal sutures. Seed more or less compressed, gradually nar- rowed or broad and deeply lobed at the base, with conspicuous dark veins radiating from the apex and from the minute basal hilum. Juglans is confined to temperate North America, the West Indies, South America from Venezuela to Peru, Persia, northwestern India, northern China, Manchuria, and Japan. Ten species are known. Of exotic species Juglans regia, L., an inhabitant probably of Persia and northwestern India, is cultivated in the middle Atlantic and southern states and largely in California for its edible nuts, which are an important article of commerce. The wood of several species is valued for the interior finish of houses and for furniture. Juglans, from Jupiter and glands, is the classical name of the Walnut-tree. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Fruit racemose ; nut prominently 4-ribbed at the sutures, 2-celled at the base ; heartwood light brown. Leaflets 11-17, oblong-lanceolate. 1. J. cinerea (A). Fruit usually solitary or in pairs ; nut without sutural ribs, 4-celled at the base ; heartwood dark brown. Leaflets 15-23, ovate-lanceolate ; nut prominently and irregularly ridged, with often interrupted ridges. 2. J. nigra (A, C.) Leaflets 9-23, lanceolate to ovate-lanceolate ; nut deeply grooved. 3. J. rupestris (C, E, H). Leaflets 11-17, ovate-lanceolate ; nut obscurely grooved. 4. J. Californica (G.) 1. Juglans cinerea, L. Butternut. Leaves 15'-30' long, with stout pubescent petioles, and 11-17 oblong-lanceolate acute or acuminate leaflets 2'-3' long, l^'-2' wide, finely serrate except at the JUGLANDACE^ 127 unequal rounded base, glandular and sticky as they unfold, at maturity thin, yellow- green and rugose above, pale and soft-pubescent below, turning yellow or brown and falling early in the autumn. Flowers : staminate in thick aments 3'-5' long, calyx usually 6-lobed, light yellow-green, puberulous on the lower surface, ^'long, their bracts rusty-pubescent, acute at the apex; stamens 8-12, with nearly sessile dark brown anthers and slightly lobed connectives; pistillate in 6-8-flowered spikes, con- stricted above the middle, about ^' long, their bracts and bractlets coated with sticky white or pink glandular hairs and rather shorter than the linear-lanceolate calyx- lobes; stigmas bright red, ^' long. Fruit in 3-5-fruited drooping clusters, cylindri- cal, obscurely 2 or rarely 4-ridged, ovate-oblong, coated with rusty clamm}^ matted hairs, li'-2y long; nut ovate, abruptly contracted and acuminate at the apex, with 4 prominent and 4 narrow less conspicuous ribs, light brown, deeply sculptured between the ridges into thin broad irregular longitudinal plates, 2-celled at the base and 1-celled above the middle, with a narrow pointed apical cavity; seed sweet, very oily, soon becoming rancid. A tree, occasionally 100° high, with a tall straight trunk 2°-3° in diameter, and sometimes free of branches for half its height; more frequently divided 20° or 30° above the ground into many stout limbs spreading horizontally and forming a broad low symmetrical round-topped head, and dark orange-brown or bright green rather lustrous branchlets coated at first with rufous pubescence, covered more or less thickly with pale lenticels, gradually becoming puberulous, brown tinged with red or orange in their second year and marked by light gray leaf-scars with large black fibro-vas- cular bundle-scars and elevated bands of pale tomentum separating them from the lowest axillary buds. Winter-buds : terminal ^'-f long, V wide, flattened and obliquely truncate at the apex, their outer scales coated with short pale pubescence; axillary ovate, flattened, rounded at the apex, 1' long, covered with rusty brown or pale pubescence. Bark of young stems and of the branches smooth and light gray, becoming on old trees f'-l' thick, light brown, deeply divided into broad ridges separating on the surface into small appressed plate-like scales, that of young trunks and branches smooth and light gray. Wood light, soft, not strong, coarse-grained, light brown, turning darker with exposure, with thin light-colored sapwood com- posed of 5 or 6 layers of annual growth ; largely employed in the interior finish of 128 TREES OF NORTH AMERICA houses, and for furniture. Tlie inner bark possesses mild cathartic properties. Sugar is made from the sap, and the green husks of the fruit arc used to dye cloth yellow or oraufre color. Distribution. Rich moist soil near the banks of streams and on low rocky hills, soutiiern New Brunswick and the valley of the St. Lawrence River in Ontario to eastern Dakota, southeastern Nebraska, central Kansas, northern Arkansas, and Delaware, and on the Appalachian Mountains to northern Georgia and northern Alabama; most abundant and of its largest size northward. 2. Juglans nigra, L. Black Walnut. Leaves l°-2° long, with pubescent petioles, and 15-23 ovate-lanceolate leaflets 3'-3^' long, I'-iy wide, often unequal at the base, long-pointed, sharply serrate except at the more or less rounded unequal base, thin, bright yellow-green, lustrous and glabrous above, soft-pubescent below, especially along the slender midribs and primary veins, turning bright clear yellow in the autumn before falling. Flovrers : staminate in stout puberulous aments 3'-5' long, rotund, 6-lobed, with nearly orbicu- lar lobes concave and pubescent on the outer surface, their bracts ^' long, nearly triangular, coated with rusty brown or pale tomentum; stamens 20-30, arranged in many series, with nearly sessile purple and truncate connectives; pistillate in 2-5- flowered spikes, ovate, gradually narrowed at the apex, ^ long, their bracts and bractlets coated below with pale glandular hairs and green and puberulous above, sometimes irregularly cut into a laciniate border, or reduced to an obscure ring just below the apex of the ovary; calyx-lobes ovate, acute, light green, puberulous on the outer, glabrous or pilose on the inner surface; stigmas yellow-green, tinged on the margins with red, ^-f long. Fruit solitary or in pairs, globose, oblong or slightly pyriform, light yellow-green, roughened by clusters of short pale articulate hairs, 1^-2' in diameter; nut oval or oblong, slightly flattened, 1^-1^' in diameter, dark brown tinged with red, deeply divided on the outer surface into thin or thick often interrupted irregular ridges, 4-celled at the base and slightly 2-celled at the apex; seed sweet, soon becoming rancid. A tree, frequently 100° and occasionally 150° high, with a straight trunk often clear of branches for 50°-60° and 4°-6° in diameter, thick limbs spreading gradually and forming a comparatively narrow shapely round-topped head of mostly upright JUGLANDACEJE 129 rigid branches, and stout branchlets covered at first with pale or rusty matted hairs, dull orange-brown and pilose or puberulous during their first winter, marked with raised conspicuous orange-colored lenticels and elevated pale leaf-scars, gradually growing darker and ultimately light brown. "Winter-buds : terminal ovate, slightly flattened, obliquely rounded at the apex, coated with pale silky tomentum, y long, with usually 4 obscurely pinnate scales; axillary i' long, tomentose, their outer scales opening at the apex during the winter. Bark of young stems and branches light brown and covered with thin scales, becoming on old trees 2'-3' thick, dark brown slightly tinged with red, and deeply divided into broad rounded ridges broken on the surface into thick appressed scales. Wood heavy, hard, strong, rather coarse- grained, very durable, rich dark brown, with thin lighter colored sap wood of 10-20 layers of annual growth; largely used in cabinet-making, the interior finish of houses, gun-stocks, and in boat and shipbuilding. Distribution. Rich bottom-lands and fertile hillsides, western Massachusetts to southern Ontario, southern Michigan and Minnesota, central and northern Nebraska, eastern Kansas, and southward to western Florida, central Alabama and Mississippi, and the valley of the San Antonio River, Texas; most abundant in the region west of the Alleghany Mountains, and of its largest size on the western slopes of the high mountains of North Carolina and Tennessee, and on the fertile river bottom-lands of southern Illinois and Indiana, southwestern Arkansas, and the Indian Territory; largely destroyed for its valuable timber, and now rare. Occasionally cultivated as an ornamental tree in the eastern United States, and in western and central Europe. « 3. Juglans rupestris, Engelm. "Walnut. Leaves 7'-15' long, with slender scurfy-pubescent petioles and 9-23 ovate-lanceo- late leaflets unequal on the two edges, coarsely or finely crenulate-serrate nearly to the rounded or unequal base, dark yellow-green and glabrous, 2^-5' long, i'-l^' wide, thin, dark yellow-green and glabrous, or pubescent on the lower surface, especially along the stout yellow midribs and primary veins, turning yellow before falling in the autumn. Flowers: staminate in slender aments 2|'-4' long, 3-5-lobed, nearly orbicular, light yellow-green, glabrous or slightly pubescent on the lower surface, short-stalked, their bracts ovate-lanceolate, acute, coated with thick pale 130 TREES OF NORTH AMERICA tomeiituni; stamens about 20, with nearly sessile yellow anthers and dark conspicu- ous slightly lobed connectives; pistillate in few-llowcred sjjikes, narrowed at the ends, coated with pah' or rufous tonicntuui, -1'-^' long, their bract and braetlets green above, puberulous at the apex on the outer surface, and irregularly divided into a laciniate border rather shorter than the ovate acute calyx-lobes puberulous on the outer surface; stigmas green, tinged with red, ^' long. Fruit globose or rarely oblong, V-IV i'l diameter, with a thin husk glabrate or coated with short rufous hairs; nut globose, without ridges, often compressed at the ends and sometimes flattened laterally, dark reddish brown to black, deeply grooved, with longitudinal simple or forked grooves, 4-celled at the base, 2-celled at the apex; seed small and sweet, retaining its flavor for a long time. A tree, 50° high, with a short trunk occasionally 5° in diameter, sometimes divided near the ground or usually 10°-15° above it into several stout nearly upright branches forming a narrow head, or in moist soil frequently spreading a few feet above the division of the trunk and becoming pendulous at the extremities, and branclilets coated at first with pale or light brown scurfy pubescence or tomentum often persistent for two or three years, orange-red in their first winter, marked by mau}^ small pale lenticels, and ultimately pale or nearly white; often a shrub send- ing up from the ground a cluster of stems only a few feet tall. Winter-buds: ter- minal \'-^' long, compressed, narrowed and often oblique at the apex, covered with rusty or pale tomentum; axillary ^' long, compressed, coated with pale pubescence. Bark of young trunks and of the branches smooth, pale, often nearly white, becoming on old trees V thick, deeply furrowed and broken on the surface into thin appressed scales. Wood heavy, hard, not strong, rich dark brown, with thick* nearly white sap wood. Distribution. Limestone banks of the streams of central and western Texas, here shrubby or rarely more than 30° high; common and of larger size in canons of the mountains of New Mexico and Arizona south of the Colorado plateau; in northern Mexico. Occasionally cultivated in the eastern United States, and hardy as far north as Massachusetts; and rarely in Europe. 4. Juglans Californica, Wats. Walnut. Leaves 6'-9' long, with slender puberulous petioles, and 11-17 ovate-lanceolate often somewhat falcate long-pointed leaflets l^'-3' long, ^-f wide, coarsely serrate except at the rounded or subcordate or wedge-shaped base, thin, light green, glabrous or furnished on the under surface with tufts of pale hairs in the axils of primary veins. Flovrers: staminate in slender puberulous aments 2'-3' long, calyx elongated, light green, coated like its bract on the outer surface with rufous pubescence, divided into 5 or 6 acute lobes, short-stalked ; stamens 30^0, with yellow anthers and short connectives bifid at the apex; pistillate broadly ovate or subglobose, glabrate or puberulous, -|' long, the free border of their bract and braetlets ring-like, nearly entire and much shorter than the broad ovate pubescent calyx-lobes; stigmas yellow, ^ long. Fruit globose, |'-1^' in diameter, with a thin dark-colored husk coated with soft pubescence; nut nearly globose, without ridges, slightly compressed, sometimes flat- tened at the ends, dark brown, obscurely grooved, with remote shallow grooves, 4-celled at the base, imperfectly 2-celled at the apex; seed large and sweet, retaining its flavor for several months. A tree, rarely 60° high, with a trunk 18'-20' in diameter, and stout pendulous •JUGLANDACE^ 131 branches forming a graceful symmetrical romid-topped head, and slender branchlets covered while young with rufous scurfy tomentum, dark reddish brown, puberulous, and marked during their first winter with pale scattered lenticels and small elevated obscurely 3-lobed leaf-scars, becoming darker and gradually glabrous in their second year and ultimately nearly white; often much smaller, sometimes shrubby in habit. Winter-buds: terminal acute, compressed, more or less oblique at the apex, coated with pale tomentum, ^' long; axillary usually solitary, nearly globose, ^q' long, and covered with thick pale rufous tomentum. Bark of young stems and upper branches smooth, pale or nearly white, becoming on old trunks ^'-^' thick, dark brown or nearly black, deeply divided into broad irregular ridges separating on the surface into thin appressed scales. Wood heavy, hard, rather cross-grained, dark brown, often mottled, with thick pale sapwood of 8-10 layers of annual growth. Distribution. Banks of streams and bottom-lands in the California coast region, usually twenty or thirty miles from the sea, from the valley of the lower Sacramento River to the southern slopes of the San Bernardino Mountains. Often cultivated in California as a shade-tree and as stock on which to graft varieties of Juglans regia, L. 2. HICORIA, Raf. Hickory. Trees, with smooth gray bark becoming on old trunks rough and scaly, strong hard tough brown wood, tough terete flexible branches, solid pith, buds covered with few valvate or with numerous imbricated scales, the axillary buds often stalked and sometimes solitary. Leaves often glandular-dotted, their petioles sometimes per- sistent on the^ branches during the winter, and in falling leaving large elevated ob- long or semiorbicular more or less 3-lobed emarginate leaf-scars displaying small marginal clusters and central radiating lines of dark fibro-vascular bundle-scars; leaflets involute in the bud, ovate or obovate, usually acuminate, thick and firm, serrate, mostly unequal at the base, with veins forked and running to the margins, turning clear bright yellow in the autumn. Aments of the staminate flowers ternate, slender, solitary or fascicled in the axils of leaves of the previous year or at tlie base of branches of the year from the inner scales of the terminal bud, the lateral branches 132 TREES OF NORTH AMERICA in the axils of lanceolate acute persistent bracts; calyx usually 2 rarely 3-lobed, its bract free nearly to the base and usually much longer than the ovate rounded calyx-lobes; stamens 3-10, in 2 or 3 series, their anthers ovate-oblong, emarginate or divided at the a])ex, pilose or hirsute, as long or longer than their slender con- nectives; pistillate flowers sessile, in 2-10-flowered spikes, with j)erianth-like involu- cres, slightly -l-ridged, une(pially 4-lobed at the apex, villous on the outer surface, the bract much longer than the bractlets and single calyx-lobe ; stigmas short, papillose-stigmatic. Fruit ovoid, globose or pyriform, with a lliiii oi- thick husk becoming hard and woody at maturity, 4-valved, the sutures alternate with those of the nut, sometimes more or less broadly winged, splitting to the base or to the mid- dle; nut oblong, obovate or subglobose, acute, acuminate, or rounded at the apex, tipped by the hardened renmants of the style, narrowed and usually rounded at the base, cylindrical or compressed contrary to the valves, the wall thin and brittle or thick, hard, and bony, smooth or variously rugose or ridged on the outer surface, -l-celled at the base, 2-celled at the apex. Seed compressed, variously grooved on the back of the flat or concave lobes, sweet or bitter. Hicoria is confined to the temperate region of eastern North America from the valley of the St. Lawrence River to the highlands of Mexico. Of the twelve species, eleven inhabit the territory of the United States. The generic name is formed from the popular name of these trees. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Bud-scales few, valvate, the inner strap-shaped and only slightly accrescent ; fruit more or less broadly winged at the sutures ; shell of the nut thin and brittle, with large cavities {thick in 4)' Aments of staminate flowers nearly sessile, usually on branches of the previous year. Leaflets 13-15, oblong-lanceolate, more or less falcate ; nut ovate-oblong, cylin- drical; kernel sweet. 1. H. Pecan (A, C). Leaflets 7-11, lanceolate, often falcate ; nut oblong, compressed ; kernel bitter. 2. H. Texana (C). Aments of staminate flowers long-stalked on branches of the year or of the previous year. Leaflets 7-11, lanceolate or oblong-lanceolate ; nut often broader than long, slightly 4-angled ; kernel bitter. 3. H. minima (A, C). Leaflets 7-11, ovate-lanceolate to lanceolate-obovate ; nut ellipsoidal, cylindrical, thick-shelled ; kernel sweet. 4. H. myristicaef ormis (C). Leaflets 7-13, lanceolate, more or less falcate ; nut compressed, rugose, prominently ridged ; kernel bitter. 5. H. aquatica (C). Bud-scales numerous, imbricated, the inner becoming much enlarged, often highly colored and much reflexed and twisted before falling ; aments of staminate flowers at the base of branches of the year, long-stalked ; fruit without sutural wings {sometimes slightly winged in 11) ; shell of the nut thick and bony, wnth minute cavities. Bark separable from old trunks in long loose plates. Branehlets light red-brown ; nut pale or nearly white. Leaflets 5-7, ovate to oblong-lanceolate or obovate ; nut thick or thin-shelled ; branehlets stout. 6. H. ovata (A, C). Leaflets usually 5, lanceolate ; nut thin-shelled ; branehlets slender. 7. H. Carolinae-septentrionalis (C). Branehlets pale orange color. Leaflets 5-9, obovate or oblong-lanceolate, puberulous on the lower surface ; nut ovate, thick-walled, prominently 4-angled, dull white to light reddish brown. 8. H. laciniosa (A, C). JUGLANDACE^ 133 Bark closely furrowed, rarely exfoliating' in plate-like scales. Leaflets 7-9, oblong-lanceolate to obovate-lanceolate, more or less tomentose on the lower surface, very fragrant ; nut globose or oblong, often long-pointed, 4:-ridged toward the apex, thick-shelled, reddish brown. 9. H. alba (A, C). Leaflets usually 5-T, oblong to obovate-lanceolate, glabrous or villous-pubescent ; fruit pyriform or globose ; husk usually thin, slightly ridged at the sutures ; nut oblong-oval or globose, thick or thin-shelled. 10. H. glabra (A, C). Leaflets 5-9, lanceolate to oblanceolate, pubescent and covered below while young with silvery peltate scales ; fruit subglobose to pyriform ; husk thin ; nut angled, thick-shelled. 11. H. villosa (A, C). 1. Bud-scales few y valvule. 1. Hicoria Pecan, Britt. Pecan. Leaves 12'-20' long, with slender glabrous or pubescent petioles, and 9-17 lanceolate to oblong-lanceolate more or less falcate long-pointed coarsely often doubly serrate leaflets rounded or wedge-shaped at the unequal base, sessile, with the exception of the terminal leaflet, or short-stalked, thin and firm, dark yellow- green and glabrous or pilose above, and pale and glabrous or pubescent below, 4'-8' long, V-S' wide, with narrow yellow midribs and conspicuous veins. Flowers: staminate in slender puberulous clustered aments 3'-5' long, from buds formed in the axils of leaves of the previous year or occasionally on shoots of the year, sessile or short-stalked; calyx light yellow-green and hirsute on the outer surface, with broadly ovate acute lobes rather shorter than the oblong or obovate bract, and nearly sessile yellow anthers; pistillate oblong, narrowed at the ends, slightly 4-angled and coated with yellow scurfy pubescence. Fruit in clusters of 3-11, pointed, 4-winged and angled, l'-2i' long, -j'-l' broad, dark brown and coated with clusters of yellow articulate hairs, with a thin hard and brittle husk splitting at maturity nearly to the base and often persistent on the branch during the winter after the discharge of the nut; nut ovoid to ellipsoidal, nearly cylindrical or slightly 4-angled toward the pointed apex, rounded and usually apiculate at the base, bright reddish brown, with irregular black markings, l'-2' long, with thin brittle walls and papery partitions; 134 TREES OF NORTH AMERICA seed sweet, retl-brown, its nearly Hat lobes grooved t roiu near the base to the apex by 2 deep longitudinal grooves. A tree, 100°-170° high, with a tall massive trunk occasionally C° in diameter above its enlarged and buttressed base, stout slightly spreading branches forming in the forest a narrow symmetrical and inversely pyramidal head, or with abundant room a broad round-topped crown, and branehlets at first slightly tinged with red and coated with loose pale tomentum, becoming glabrous or puberulous in their first winter, and marked with numerous oblong orange-colored lenticels and with large oblong concave leaf-scars surrounded by a broad thin membranaceous border embracing the lower axillary bud. Winter-buds acute, compressed, covered with clusters of bright yellow articulate hairs and pale tomentum, terminal ^' long; axillary ovate, often stalked, especially the large upper one. Bark I'-l^' thick, light brown tinged with red, and deeply and irregularly divided into narrow forked ridges broken on the surface into thick appressed scales. Wood heavy, hard, not strong, brittle, coarse- grained, light brown tinged with red, with thin light brown sapwood; less valuable than that of most Hickories, and used chiefly for fuel, and occasionally in the manu- facture of wagons and agricultural implements. The nuts, which vary in size and shape and in the thickness of their shells and in the quality of the kernels, are an important article of commerce. Distribution. Low rich ground in the neighborhood of streams from the valley of the Mississippi River in Iowa, through southern Illinois and Indiana, western Kentucky and Tennessee, to central Mississippi and Alabama, and through Missouri and Arkansas to southeastern Kansas, the Indian Territory, western Louisiana and the valley of the Concho River, Texas, reappearing on the mountains of Mexico; most abundant and of its largest size in southern Arkansas, the Indian Territory, and eastern Texas. Occasionally planted as a shade-tree, especially in the southern states, and now largely for its nuts in orchards of trees raised from selected seeds or by grafts of trees producing nuts of the largest size and best quality. 2. Hicoria Texana, Le Conte. Bitter Pecan. • Leaves 10'-12' long, with slender petioles, and 7-11 lanceolate acuminate finely serrate leaflets, hoary-tomentose at first, and more or less villous in the autumn, thin and firm, dark yellow-green, nearly glabrous above, pale yellow-green and puberulous below, 3' -5' long, about 1^' wide, the terminal leaflet gradually narrowed to the acute base and short-stalked, the lateral often falcate, unsymmetrical at the base, subsessile or short-stalked. Flowers: staminate in villous aments 2'-3' long; calyx light yellow-green and villous on the outer surface, with oblong-ovate rounded lobes, much shorter than the ovate acuminate bract; pistillate oblong, slightly 4-an- gled, villose. Fruit in few-fruited clusters, oblong or oblong-obovate, apiculate at the apex, slightly 4-winged at the base, dark brown, more or less covered with artic- ulate hairs, l|^'-2' long, with a thin husk; nut oblong-ovate or oblong-obovate, com- pressed, acute at the ends, short-pointed at the apex, apiculate at the base, obscurely 4-angled, bright red-brown, rough and pitted and usually 1^-1^' long, with a thin brittle shell, thin papery walls, and a low basal ventral partition; seed very bitter, bright red-brown, flattened, its lobes rounded and slightly divided at the apex, longitudinally grooved and deeply penetrated on the outer face by the prominent reticulated folds of the inner surface of the shell of the nut. A tree, sometimes 100° high on the bottoms of the Brazos River, with a tall straight JUGLANDACE^ 135 trunk 3° in diameter, and ascending branches, or on the borders of prairies in low- wet woods usually lo°-25° tall, with a short trunk 8'-10' in diameter, small spreading branches forming a narrow round-topped head; and slender branchlets coated at first with thick hoary tomentum sometimes persistent until the autumn, bright red-brown and marked by occasional large pale lenticels during their first winter and by the large concave obcordate leaf-scars nearly surrounding the lowest axillary buds, becoming darker in their second season and dark or light gray-brown in their third year. Winter-buds covered with light yellow articulate hairs, ter- minal oblong, acute or acuminate, somewhat compressed, about Y lor^g? ^^^d rather longer than the upper lateral bud. Bark ^'-f thick, light reddish brown, and rough- ened by closely appressed variously shaped plate-like scales. Wood close-grained, tough and strong, light red-brown, with pale brown sapwood. Distribution. Bottom-lands and low wet woods of eastern Texas for a distance of 100 to 150 miles from the coast. 3. Hicoria minima, Britt. Bitternut. Swamp Hickory. Leaves 6'-10' long, with slender pubescent or hirsute petioles, and 5-9 lanceolate to oblong or ovate-lanceolate or obovate long-pointed sessile leaflets coarsely serrate except at the equally or unequally wedge-shaped or subcordate base, thin and firm, dark yellow-green and glabrous above, lighter and pubescent below, especially along the midribs, 4'-6' long, |'-1^' wide. Flowers: staminate in slightly pubescent aments 3'-4' long, with a slender peduncle often 1' in length, usually on branches of the previous year or rarely from the base of shoots of the year; calyx coated with rufous hairs like its ovate acute bract; stamens 4, with ovate yellow anthers deeply emarginate at the apex; pistillate ^' long, slightly 4-angled, covered with yellow scurfy tomentum. Fruit f -1^' long, obovate to subglobose, 4-winged from the apex to about the middle, with a thin husk, more or less thickly coated with yellow scurfy pubescence; nut ovate or oblong, often broader than long, compressed and marked at the base with dark lines along the sutures and alternate with them, depressed or obcordate, and abruptly contracted into a long or short point at the apex, gray tinged with red or light reddish brown, with a thin brittle shell; seed bright reddish brown, very bitter, much compressed, deeply rugose, with irregular cross-folds. 136 TKKES OF NORTH AMEKICA A tree, often 100" liigli, with a tall straij^lit trunk 2°-3° in diameter, stout spreadinj:^ branches forniinfj a broad handsome head, and slender branchlets marked with oblon*:^ pale lentieels, bri- !34 narrowed above, with large laciniately lobed nearly sessile stigmas. Fruit pedicel- late, oblong-ovate, acute, thin- walled, slightly pitted, about \' long, 3 or rarely 2-valved; seeds oblong-obovate, rounded at the apex, light brown, about ^' in length. A tree, usually about 40° high, with a trunk 12'-18' in diameter, stout spreading ascending branches forming a compact round-topped head, and slender terete or slightly 4-angled pale yellow-brown branchlets roughened for two or three years by SALIC ACE^ 161 the elevated oval horizontal leaf-scars. Winter-buds aeumiuate, resinous, about ^' long, with 6 or 7 light chestnut-brown lustrous scales. Bark on young stems and large branches smooth, nearly white, becoming on old trunks pale gray-brown, about ^' thick, deeply divided into broad flat ridges. Distribution. Banks of streams in the arid eastern foothill region of the Rocky Mountains ; Assiniboia to western Nebraska, eastern Wyoming, and southern Colo- rado. Sometimes planted as a shade-tree in the streets of cities in the Rocky Mountain region. 7. Populus trichocarpa, Hook. Black Cotton^wood. Balsam Cotton-wood. Leaves broadly ovate to oblong-rhombic, gradually narrowed and usually short- pointed or rarely acute at the apex, broad, rounded or slightly cordate or occasion- ally slightly narrowed and wedge-shaped at the base, finely erenately serrate, coated at first with rufous or pale pubescence, becoming thick and firm, dark rich green, glabrous or puberulous and lustrous above, pale and rusty or silvery white and con- spicuously reticulate-venulose below, 3'-4' long, l^'-3' broad ; their petioles slender, terete, puberulous, l'-2' long. Flo^wers : aments stalked, the staminate densely flow- ered, 1^-2' long, 1^' thick, with slender glabrous stems, the pistillate loosely flowered, 2^'-3' long, with stout hoary-tomentose stems becoming 4'-5' long before the fruit ripens, their scales dilated at the apex, irregularly cut into numerous filiform lobes, glabrous or slightly puberulous on the outer surface; disk of the staminate flower broad, slightly oblique; stamens 40-60, with slender elongated filaments longer than the large light purple anthers; disk of the pistillate flower deep cup-shaped, with irregularly crenate or nearly entire revolute margins; ovary subglobose, coated with thick hoary tomentum, with 3 nearly sessile broadly dilated deeply lobed stigmas. Fruit subglobose, nearly sessile, pubescent or rarely almost glabrous, thick-walled, 3-valved; seeds obovate, apiculate at the gradually narrowed apex, light brown, puberulous toward the ends, ^V long. A tree, often 200° high, with a trunk 7°-8° in diameter, heavy upright branches forming a broad open head, and stout branchlets terete or slightly angled while young, marked by many orange-colored lenticels, coated at first with deciduous rufous or pale pubescence, light or dark orange-colored and lustrous during their 162 TREES OF NORTH AMERICA first year, gradually becoming dark gray, and roughened by the greatly enlarged and thickened elevated leaf-scars. "Winter-buds resinous, fragrant, ovate, long- pointed, frequently curved above the middle, |' long and ^' broad, vv^ith 6 or 7 light orange-brown slightly puberulous scales scarious on the margins. Bark l^'-2^' thick, ashy gray, deeply divided into broad rounded ridges broken on the surface into thick closely appressed scales. "Wood light, dull brown, with thin nearly white sap wood; largely used in Oregon and Washington for the staves of sugar barrels and in the manufacture of woodenware. Distribution. In open groves by the banks of streams; southern Alaska, south- ward to western Oregon, along the mountains and islands of western California to the southern slopes of the San Bernardino Mountains, and eastward through British Columbia to the valley of the Columbia River; of its largest size near the level of the sea in all the coast region north of California; southward and beyond the influence of the ocean often not more than 30-°40° tall ; sometimes ascending to elevations of 6000° above the sea on the western slope of the Sierra Nevada of central California; the largest of the broad-leaved trees of British Columbia, Wash- ington, and Oregon. 8. Populus Mexicana, Wesm. Cotton"wood. Leaves rhombic and long-pointed, especially on young trees, or broadly deltoid and acute or acuminate, broadly or acutely cuueate or truncate or slightly cordate at the base, or often rounded at the apex and much broader than long, usually coarsely and irregularly crenately serrate except at the base and toward the apex, the broad and rounded leaves finely crenulate-serrate above the middle, as they un- fold dark red, covered below with pale pubescence, puberulous above, ciliate on the margins, thin, terete, glandular, with bright red caducous glands, soon becoming glabrous, and at maturity subcoriaceous, bright yellow-green, very lustrous, 2'-3' long and somewhat narrower or much broader than long, with slender yellow mid- ribs and obscure primary veins; their petioles terete, at first puberulous, soon gla- brous, l^'-2' long. Flowers: staminate aments dense, cylindrical, I'-l^' long; pis- tillate aments slender, many-flowered, l^'-2' long, 3'-4' long before the fruit ripens; SALICACE^ 163 disk of the staminate flower broad, oblong; stamens numerous; disk of the pistillate flower deep cup-shaped, nearly entire; ovary ovate, rounded at the apex, slightly 3 or 4-angled, short-stalked, nearly inclosed in the cup-shaped membranaceous disk. Fruit on short stout pedicels, round-ovoid, buff color, slightly 3 or 4-lobed, deeply pitted, thin-walled, about ^' long. A tree, sometimes 80° high, with a trunk 3°-4° in diameter, gracefully spread- ing and ascending branches forming a broad open head, and slender branchlets, pale green and more or less pubescent or villose at first, soon becoming glabrous, and light yellow-brown during their first season. Winter-buds narrow, acute, light orange-brown, puberulous toward the base of the outer scales, the terminal about ^' long, and two or three times as large as the much-compressed oblong lateral buds. Bark pale gray or rarely white, and deeply divided into broad flat ridges. Distribution. Banks of mountain streams; southern Arizona and southwestern New Mexico; widely distributed through northern Mexico. Often planted as a shade-tree in Mexican cities. **Leaf-stalks compressed laterally. 9. Populus deltoidea. Marsh. Cottonvrood. Leaves deltoid or broadly ovate, acuminate, with entire points, or rarely rounded at the apex, truncate, slightly cordate or occasionally abruptly wedge-shaped at the entire base, coarsely crenately serrate above, with incurved glandular teeth, as they unfold gummy, fragrant with a balsamic odor, covered more thickly below than above with soft white caducous hairs, and tomentose on the margins, at maturity thick and firm, light bright green and lustrous, paler on the lower than on the upper surface, 3'-5' long and broad, with stout yellow midribs often tinged with red toward the base, raised and rounded on the upper side, and conspicuous primary veins; their petioles slender, pilose at first, soon glabrous, compressed laterally, yellow more or less tinged with red, 2^-3^' long. Flowers: aments short-stalked, the staminate densely flowered, 3'-4' long, ^' thick, with stout glabrous stems, the pistillate sparsely flowered, thin-stemmed, often becoming a foot long before the fruit ripens, their scales scarious, light brown, glabrous, dilated and irregularly divided at the apex 164 TREES OF NORTH AMERICA into filiform lobes ; disk of the staniinate flower broad, oblique, slightly thickened and revolute on the margins ; stamens 60 or more, with short filaments and large dark red anthers; disk of the pistillate flower broad cup-shaped; ovary subglobose, with 3 or 4 nearly sessile dilated or laciniately lobed stigmas. Fruit oblong-ovate, rather abruptly contracted and acute at the apex, slightly pitted, thin-walled, \'-^' long, dark green, 3 or 4-valved, its stem j-^' long ; seeds oblong-obovate, rounded at the apex, light brown, about ^■^' long. A tree, sometimes 100° high, with a trunk occasionally 7°-8° in diameter, divided often 20°-30° above the ground into several massive limbs spreading gradually and becoming pendulous toward the ends, and forming a graceful rather open head frequently 100° across, or on young trees nearl}"^ erect above and spreading below almost at right angles with the stem, and forming a symmetrical pyramidal head, and stout branchlets marked with long pale lenticels, terete or, especially on vigor- ous trees, becoming angled in their second year, with thin more or less prominent wings extending downward from the two sides and the bases of the large 3-lobed leaf- scars. Winter-buds very resinous, ovate, acute, the lateral much flattened, 1' long, with 6 or 7 light chestnut-brown lustrous scales. Bark thin, smooth, light yellow tinged with green on young stems and branches, becoming on old trunks l^'-2' thick, ashy gray, and deeply divided into broad rounded ridges broken into closely ap- pressed scales. Wood dark brown, with thick nearly white sap wood, warping badly in drying and difficult to season. Distribution. Banks of streams, often forming extensive open groves; Province of Quebec and the shores of Lake Champlain, through western New England and New York, Pennsylvania west of the Alleghany Mountains, and the Atlantic states south of the Potomac River to western Florida, and westward to the base of the Rocky Mountains from southern Alberta to northern New Mexico; westward passing into the var. occidentalis, Rydb., with deltoid more abruptly acuminate and more coarsely toothed leaves with longer points, and broader at the base, and the com- mon Cottonwood in the region along the eastern base of the Rocky Mountains from Alberta to New Mexico and through western Texas. Comparatively rare and of smaller size in the east and in the coast region of the south Atlantic and east Gulf states, and the largest and one of the most abundant trees along the streams between the Appalachian and the Rocky Mountains, marking their course over the midconti- nental plateau to the extreme limit of tree-growth, and growing to its largest size as far west as the 100th meridian. Often planted for shelter and ornament on the treeless plains and prairies between the Mississippi River and the Rocky Mountains, and as an ornamental tree in the eastern United States, and largely in western and northern Europe. 10. Populus Fremontii, Wats. Cottonwood. Leaves deltoid or reniform, generally contracted into broad short entire points, or rarely rounded or emarginate at the apex, truncate, ^lightly cordate or abruptly wedge-shaped at the entire base, coarsely and irregtdarly serrate, with few or many incurved gland-tipped teeth, coated like the petioles when they unfold with short spreading caducous pubescence, at maturity thick and firm, bright green and lus- trous, 2'-2|' long, 21'-3' broad, with thin yellow midribs and 4 or 5 pairs of slender veins; their petioles flattened, yellow, l^'-3' long. Flowers: staminate aments densely flowered, l^'-2' long, nearly ^' broad, with slender glabrous stems; the pistillate sparsely flowered, with stout glabrous or puberulous stems, 2' long, becom- SALICACE^ 165 iiig before the fruit ripens 4' or 5' long , their scales light brown, thin and scarious, dilated and irregularly cut at the apex into filiform lobes; disk of the stamiuate fK,. OS flower broad, oblique, slightly thickened on the entire revolute margins; stamens 60 or more, with large dark red anthers; disk of the pistillate flower cup-shaped; ovary ovate or ovate-oblong, with 3 broad irregularly crenately lobed stigmas. Fruit ovate, acute or obtuse, slightly pitted, thick-walled, 3 or rarely 4-valvecl, ^'-^' long, its stalk stout, from ^'-^' loiig; seeds ovate, acute, light brown, and nearly 1' long. A tree, occasionally 100° high, with a short trunk o°-6° in diameter, and stout spreading branches pendulous at the ends and forming a broad rather open graceful head, and slender terete branchlets light green and covered at first with short pale caducous pubescence, becoming light yellow before winter, dark or light gray more or less tinged with yellow in their second year, and only slightly roughened by the small 3-lobed leaf -scars. Winter-buds ovate, acute, with light green lustrous scales, ■the terminal usually about ^' long and usually two or three times as large as the lateral buds. Bark on young stems light gray-brown, tbin, smooth or slightly fissured, becoming on old trees l^'-2' thick, dark brown slightly tinged with red, and deeply and irregularly divided into broad connected rounded ridges covered with small closely appressed scales. Wood light brown, with thin nearly white sapwood. Distribution. Banks of streams ; valley of the upper Sacramento River south- ward through western California to Lower California and eastward to central Ne- vada, southern Utah, southern Colorado, and western Texas. Often planted in southern California as a shade-tree, and for the fuel produced quickly and abundantly from pollarded trees. 11. Populus Wislizeni, Sarg. Cotton-wood. Leaves broadly deltoid, abruptly short-pointed, truncate or sometimes cordate at the broad entire base, coarsely and irregularly crenately serrate except toward the entire apex, coriaceous, glabrous, yellow-green and lustrous, 2'-2^' long, usually about 3' wide, with slender yellow midribs, thin remote primary veins and conspicuous reticulate veinlets; their petioles slender, glabrous, l^'-2' long. Flowers: aments 2'-4' long, the pistillate becoming 4'-5' long before the fruit ripens, their scales scarious, light red, divided at the apex into elongated filiform lobes; disk of the 166 TREES OF NORTH AMERICA staminate flower broad and oblique; stamens numerous, with large oblong anthers and short filaments; disk of the pistillate flower cup-shaped, irregularly dentate, inclosing to the middle the long-stalked ovary full and rounded at the apex, with 3 broad crenulate lobed stigmas raised on the short branches of the style. Fruit oblong-ovate, thick-walled, acute, 3 or 4-valved, slightly ridged, buff color, ^' long, on slender pedicels ^-f in length and placed rather remotely on the slender gla- brous rachis of the ament. A large tree, with wide-spreading branches, stout light orange-colored glabrous branchlets, and acute lustrous buds. Bark pale gray-brown, deeply divided into broad flat ridges. Distribution. The common Cottonwood in the valley of the Rio Grande of western Texas and New Mexico, and the adjacent parts of Mexico. 2. SAUX, L. W'illow. Trees or shrubs, with watery juice, scaly bark, soft wood, slender terete tough branchlets often easily separated at the joints, and winter-buds covered by a single scale of 2 coats, the inner membranaceous, stipular, rarely separable from the outer, inclosing at its base 2 minute opposite lateral buds alternate with 2 small scale-like caducous leaves coated with long pale or rufous hairs. Leaves variously folded in the bud, alternate, simple, lanceolate, obovate, rotund or linear, penni- veined; their petioles sometimes glandular at the apex, and more or less covering the bud, in falling leaving U-shaped or arcuate elevated leaf-scars displaying the ends of 3 small equidistant fibro-vascular bundles; stipules oblique, serrate, small and deciduous, or foliaceous and often persistent, generally large and conspicuous on vigorous young branches, leaving in falling minute persistent scars. Flowers in sessile or stalked aments, terminal and axillary on leafy branchlets; scales of the ament lanceolate, concave, rotund or obovate, entire or glandular-dentate, of uniform color or dark-colored toward the apex, more or less hairy, deciduous or persistent; disk of the flower nectariferous, composed of an anterior and posterior or of a single posterior gland-like body; stamens 3-12 or 2, inserted on the base of the scale, with slender filaments free or rarely united and usually light yellow, glabrous or hairy toward the base, and small ovate or oblong anthers generally rose-colored before SALICACE^ 167 anthesis, becoming orange or purple; ovary sessile or stipitate, conical, obtuse to subulate-rostrate, glabrous, tomentose or villous, with an abbreviated style divided into 2 short recurved retuse or 2-parted stigmas; ovules 4-8 on each of the 2 placentas. Fruit an acuminate 1-celled capsule separating at maturity into 2 re- curved valves. Seeds minute, narrowed at the ends, dark chestnut-brown or nearly black ; cotyledons oblong. Salix inhabits the banks of streams and low moist ground, the alpine summits of mountains, and the Arctic and sub-Arctic regions of the northern hemisphere, ran- ging southward in the New World, with a few species, through the West Indies and Central America to the Andes of Chili, and in the Old World to Madagascar, southern Africa, the Himalayas, Burmah, the Malay peninsula, Java, and Sumatra. Of the 160 or 170 species which are now recognized about seventy are found in North America. Of these twenty-one attain the size and habit of trees, the others being small and sometimes prostrate shrubs. Of exotic species, Salix alba, L., and Salix fra- gilis, L., important European timber-trees, are now generally naturalized in the northeastern states. The flexible tough branches of several species are used in mak- ing baskets; the bark is rich in tannic acid and is used in tanning leather and yields salicin, a bitter principle valuable as a tonic. Many of the species are cultivated as ornamental trees. Salix is the classical name of the Willow-tree. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Scales of the aments of uniform color ; aments usually on leafy branches. Stamens 3 or more ; aments terminal. Petioles without glands. Leaves green on both surfaces, narrowly lanceolate, long-pointed, often falcate. 1. S. nigra (A, C, E, G, H). Leaves pale below, lanceolate or ovate-lanceolate. Leaves silvery white below, short-petiolate. 2. S. longipes (A, C, H). Leaves pale or glaucous below, slender-petiolate. 3. S. amygdaloides (A, B, F). Leaves pale blue-green, lanceolate to oblong-lanceolate, acute or acuminate, minutely denticulate or nearly entire, coriaceous, subpersistent. Leaves pale or glaucous below. 4. S. laevigata (G). Leaves often falcate, silvery white below, distinctly serrulate. 5. S. Bonplandiana (H.) Petioles glandular ; leaves lanceolate, taper-pointed. Leaves pubescent as they unfold, pale or glaucous below. 6. S. lasiandra (B, F, G). Leaves glabrous, coriaceous, dark green and lustrous above, pale below. 7. S. lucida (A). Stamens 2 ; aments terminal and axillary ; leaves linear-lanceolate. Leaves denticulate, usually green on both surfaces, mostly glabrous. 8. S. fluviatilis (A, B, C, E, F, G, H). Leaves entire or nearly so, light yellow-green, villous below, with lustrous pale hairs. 9. S. sessilifolia (B, G). Leaves small, entire or nearly so, pale gray-green and puberulous. 10. S. taxifolia (H). Scales of the aments dark-colored at the apex ; aments on short branches, with leaves usually reduced to scales ; stamens 2, 168 TREES OF NORTH AMERICA Capsules glabrous. Leaves acute. Leaves ovate or lanceolate, glaucous and conspicuously reticulate-veined below. 11. S. balsamifera (A). Leaves oblanceolate to lanceolate-oblong, pale or glaucous below. 12. S. lasiolepis (G, H). Leaves acuminate, lanceolate to oblanceolate. Leaves glabrous and glaucous below ; branchlets glabrous. 13. S. cordata var. Mackenzieana (F, G)- Leaves pale, often silvery white below, pubescent, at least while young ; branch- lets pubescent. 14. S. Missouriensis (A). Capsules pubescent {glabrous in 10). Leaves glabrous or nearly so at maturity {pubescent sometimes in 15) ; style short. Leaves elliptic-oblong to lanceolate, acute, with a usually twisted apex, serrate or sometimes entire. Leaves usually glabrous, glaucous below ; pedicel of the ovary shorter than the scale ; branchlets glabrous or rarely puberulous. 15. S. discolor (A). Leaves pubescent or tomentose below, often nearly glabrous at maturity ; pedicel of the ovary much longer than the scale ; branchlets pubescent. 16. S. Bebbiana (A, B, F). Leaves obovate to oblong, obtuse to acute, entire or nearly so ; style elongated. Leaves yellow-green. 17. S. Nuttallii (F, G). Leaves glaucous below. 18. S. amplifolia (B). Leaves pubescent or tomentose below. Leaves hoary-tomentose below, elliptic to oblong-obovate ; capsule glabrous; aments thick. 19. S. Hookeriana (B, G). Leaves densely covered below with a shiny white tomentum ; aments slender. Leaves oblong-obovate to oblanceolate ; stamens united. 20. S. Sitchensis (B, G). Leaves elliptic-lanceolate to obovate ; stamens distinct. 21. S. Alaxensis (B). 1. Scales of the aments of uniform color. * Stamens 3 or more ; aments terminal. -hPetioles without glands. 1. Salix nigra, Marsh. Black Willow. Leaves involute in the bud, lanceolate, gradually narrowed above into long taper- ing usually curved tips, wedge-shaped or rounded below, finely serrate, thin bright light green, rather lustrous, with obscure reticulate veins, glabrous or often pubes- cent on the under side of the midribs and veins and on the short slender petioles, 3'-6' long, ^'-f wide, sometimes conspicuously scythe-shaped (vRr.falcata, Torr.); at the north turning light yellow before falling in the autumn; stipules semicordate, acuminate, foliaceous, persistent, or ovoid, minute, and deciduous. Flowers : aments terminal on leafy branches, narrowly cylindrical, l'-3' long, with short yellow scales rounded at the apex and coated on the inner surface with pale hairs; stamens 3-5, with filaments hairy toward the base; ovary ovate, long-stalked, glabrous, gradually narrowed above the middle to the apex, with nearly sessile thick slightly divided stigmatic lobes. Fruit ovate-conical, short-stalked, glabrous, about 1' long, light reddish brown. A tree, usually 30°-40° high, with usually several clustered stout stems, occa- SALICACE^ 169 sionally 120° high, with a trunk 3° in diameter, stout spreading upright branches forming a broad somewhat irregular handsome open head, and rather bright reddish brown to pale orange-colored brancblets, glabrous or coated at first with pale pubes- cence or snowy tomentum and easily separated at the joints. Winter-buds acute, about \' long. Bark I'-l^' thick, dark brown or nearly black or light brown tinged with orange color, and deeply divided into broad flat connected ridges separating freely into thick plate-like scales and becoming shaggy on old trunks. Wood light, soft, weak, light reddish brown, with thin nearly white sapwood. Distribution. Low moist alluvial banks of streams and lakes; southern New Brunswick and the northern shores of Lakes Huron and Superior to southern Florida, and to eastern Dakota, Nebraska, Kansas, and the Indian Territory; through west- ern Texas, southern New Mexico and Arizona, and southward in Mexico; along the western foothills of the Sierra Nevada, and northward in western California to the valley of the Sacramento River and the eastern base of the Coast Range in Caloosa County ; the largest and most conspicuous native Willow of eastern North America; most abundant in the basin of the Mississippi River, and of its largest size in southern Indiana and Illinois and in the valley of the lower Colorado River in Texas; rare in California. 2. Salix longipes, Anders. Black Willow. (Salix Wardi, and Salix occidentalism Silva N. Am. ix. 107, 109.) Leaves involute in the bud, finely and unequally serrate, lanceolate to ovate-lance- olate, often slightly falcate, rounded or cordate at the base, obliquely long-pointed, 4:'-7' long, I'-l^' wide, or linear-lanceolate, acute, rounded or auriculate at the base and often less than ^' wide, often puberulous, becoming glabrous and bright light green above, silvery white below, pubescent along the under side of the midribs and veins, their petioles broad, flat, sometimes f long; stipules foliaceous, reniform, rhomboidal or oblong, obtuse, serrate above the middle, frequently ^' long, some- times persistent. Flowers: aments terminal on leafy glabrous or hoary-pubescent branches, narrowly cylindrical, the staminate 3' or 4' long, rather longer than the pistillate, their scales ovate, obtuse, villous, orange- yellow; stamens 3-7, with fila- ments furnished at the base with numerous long slender hairs ; anthers yellow; ovary 170 TREES OF NORTH AMERICA globose, ovate or ovate-conical, long-stalked, with nearly sessile slightly divided stigmatic lobes. Fruit globose-conical, about \' long, light reddish brown, minutely glandular. A tree, occasionally 30*^ high, with a trunk 6'-8' in diameter, slender spreading slightly drooping branches, and slender branchlets not easily separated at the joints, hoary-pubescent sometimes into their second year, becoming in their first winter red- dish brown and gray tinged with brown the following year; usually smaller, fre- quently shrubby in habit. Winter-buds bright chestnut-brown, lustrous, about Y^g' long. Bark '^'-^' thick, dark reddish brown or nearly black, deeply ridged and crosschecked, covered by small closely appressed plate-like scales. Wood dark red- brown, with thin nearly white sapwood. Distribution. Rocky or gravelly banks and beds of streams; near the city of Washington, near Lexington, Kentucky, central Tennessee and western Illinois, cen- tral Missouri, and southward to southern Florida, the Indian Territory, southern Texas, and New Mexico; very abundant and a conspicuous feature of vegetation in the Ozark region of southwestern Missouri and in northwestern and western Arkansas. 3. Salix amygdaloides, Anders. Peach Willow. Almond Willow. Leaves revolute in the bud, lanceolate to ovate-lanceolate, frequently falcate, wedge-shaped or gradually rounded and often unequal at the base, gradually or abruptly narrowed into long slender points, finely serrate, slightly puberulous when they unfold, becoming at maturity thin and firm in texture, light green and lustrous above, pale and glaucous below, 2i'-4' long, f -1^' wide, with stout yellow or orange- colored midribs, prominent veins and reticulate veinlets; their petioles elongated, slender, nearly terete; stipules reniform, serrate, often 1' broad on vigorous shoots, usually caducous. Flo"wers: aments elongated, cylindrical, slender, arcuate, stalked, pubescent or tomentose, 2'-3' long, on leafy branches; their scales yellow, sparingly villous on the outer, densely villous on the inner face, the staminate broadly ovate, rounded at the apex, the pistillate oblong-obovate, narrower, caducous; stamens 5-9, with free filaments slightly hairy at the base; ovary oblong-conical, long-stalked, glabrous, with a short style and emarginate stigmas. Fruit globose-conical, light reddish yellow, about \' long. SALICACE.E 171 A tree, sometimes 60°-70° high, with a single straight or slightly inclining trunk rarely more than 2° in diameter, straight ascending branches, and slender glabrous branchlets marked with scattered pale lenticels, dark orange color or red-brown and lustrous, becoming in their first winter light orange-brown. "Winter-buds broadly ovate, gibbous, dark chestnut-brown, very lustrous above the middle, light orano-e-browu below, \' long. Bark i'-|' thick, brown somewhat tinged with red, and divided by irregular fissures into flat connected ridges separating on the surface into thick plate-like scales. Wood light, soft, close-grained, light brown, with thick nearly white sapwood. Distribution. Banks of streams; near Montreal and in Cayuga County, New York, to the valley of the Saskatchewan, southward to Ohio and Missouri, and westward over the great plains and through the Rocky Mountains from southwestern Texas to Oregon, Washington, and British Columbia; comparatively rare in the east; abundant in the lower Ohio valley; the common arborescent Willow on the streams flowing eastward from the Rocky Mountains and in all the central mountain region of the continent. 4. Salix laevigata, Bebb. Black Willo-w. Leaves involute in the bud, obovate, gradually narrowed and wedge-shaped at the base, narrowed and rounded or acute and mucronate at the apex, with slightly revolute obscurely serrate margins, on sterile branches lanceolate or oblong-lanceolate, acute or acuminate; in one form narrow, long-pointed, and falcate (yar. angustifolia, Bebb); when they unfold light blue-green and coated on the lower surface with long pale or tawny deciduous hairs, at maturity glabrous, dark blue-green and lustrous above, paler and glaucous below, 3'-T long, f'-l^' wide, with broad flat yellow midribs, their petioles broad, grooved, puberulous, rarely ^' long; stipules ovate, acute, finely serrate, usually small and caducous. Flowers: aments cylindrical, slender, lax, elongated, 2'-4' long, on leafy branches; their scales peltate, dentate at the apex, covered with long pale hairs, the staminate obovate, rounded, the pistillate narrower and more or less truncate ; stamens usually 5 or 6, with free filaments hairy at the base; ovary conical, acute, rounded below, rather short-stalked, glabrous, with broad spreading eraarginate stigmatic lobes. Fruit elongated, conical, long- 172 TREES OF NORTn AMERICA T'Ci. i^^ stalked, nearly ^ in length, or in one form globose-conical and short-stalked (var. C07igesta, Bebb). A tree, 40°-50° high, with a straight trunk nearly 2° in diameter, slender spread- ing branches, and slender light or dark orange-colored or bright red-brown branch- lets coated at first with hoary deciduous pubescence; often much smaller, with an average height of 20°-30°. Winter-buds ovate, somewhat obtuse, pale chestnut- brown, ^'-i' long. Bark |'-1' thick, dark brown slightly tinged with red and deeply divided into irregular connected flat ridges broken on the surface into thick closely appressed scales. Wood light, soft, light brown tinged with red, with thick nearly white sapwood. i Distribution. Banks of streams; western California from the Oregon boundary to the southern borders of the state, ascending to elevations of 3000° on the western slopes of the Sierra Nevada. 5. Salix Bonplandiana, H. B. K. Willo-w. Leaves involute in the bud, 4'-6' long, |'-f ' wide, linear-lanceolate to oblong- lanceolate, gradually narrowed and often unequal at the wedge-shaped base, acumi- nate, with long slender points, obscurely serr9,te, with glandular teeth, or entire, with revolute margins, thick and firm, reticulate-venulose, yellow-green and lustrous above, silvery white below, with broad yellow midribs, falling irregularly during the winter; their petioles stout, grooved, reddish; stipules ovate, rounded, slightly undulate, thin and scarious, Y~¥ broad, often persistent during the summer. FloTvers: aments on leafy branches, cylindrical, erect, slender, short-stalked, the staminate I'-l^' long and somewhat longer than the pistillate; their scales broadly obovate, rounded at the apex, light yellow, villose on the outer face and glabrous or slightly hairy above the middle on the inner face; stamens usually 3, with free filaments slightly hairy at the base; ovary slender, oblong-conical, short-stalked, glabrous, with nearly sessile much-thickened club-shaped stigmas, surrounded below by a large irregular cup-shaped glandular disk. Fruit ovate-conical, rounded at the base, light reddish yellow. A tree, rarely more than 30° high, with a trunk 12'-15' in diameter, slender erect and spreading branches often pendulous at the ends, forming a broad round- topped head, and slender glabrous branchlets marked with occasional pale lenticels, SALICACE^ 173 licrht yellow, becoming light or dark red- brown and lustrous, and paler orange- brown in their second year. Winter-buds narrowly ovate, long-pointed, more or less falcate, bright red-brown, lustrous, \' long. Bark ^'-j thick, dark brown or F'^ lU-ih nearly black, and deeply divided by narrow fissures into broad flat ridges separating on the surface into closely appressed scales. Distribution. Banks of streams in the canons of the mountains of southern Arizona; through central and southern Mexico. —I — hPetioles glandular. 6. Salix lasiandra, Benth. Black Willow. Leaves involute in the bud, linear-lanceolate, long-pointed, gradually rounded at the narrowed base, finely serrate, when they unfold pilose on the upper surface and pubescent or tomentose on the lower, at maturity dark green and lustrous above, pale or glaucous below, 4'-5' long, ^'-V wide, with broad orange-colored midribs; their petioles glabrous or pubescent, \'-^' long, furnished at the apex with 2 or more large dark glands; stipules semilunar, glandular-serrate, small and deciduous, or on vigorous shoojts large and foliaceous. Flowers : aments terminal, erect, cylindrical, l^'-2' long, on leafy branches, the staminate sometimes ^' in diameter and nearly twice as broad as the pistillate, their scales obovate, yellow, more or less villous below the middle, glandular-dentate, scales of the pistillate anient narrower and sometimes nearly entire ; stamens 5-9, with free filaments hairy at the base; ovary cylindrical, short-stalked, glabrous, with a short style and spreading slightly emarginate stigmas. Fruit light reddish brown, about ^ long. A tree, often 60° high, with a trunk 2°-3° in diameter, straight ascending branches forming an open irregular head, rather stout branchlets, at first dark purple, reddish brown or yellow, pilose, with scattered hairs, or pubescent or tomentose or often covered with a glaucous bloom, becoming at the end of the first season dark pur- ple, bright red-brown, or light orange color ; toward the southern limits of its range and in the interior of the continent much smaller, sometimes shrubby. Winter- buds broadly ovate, acute, light chestnut-brown and lustrous above the middle, pale 174 TREES OF NORTH AMERICA at the base, ]' long. Bark ^'-f' thick, dark brown slightly tinged with red aud divided by shallow fissures into broad Hat scaly ridges broken by cross fissures into oblong plates. Wood light, soft, brittle, light brown, with lighter colored or often nearly white sapwood. Distribution. River banks and the shores of lakes; California west of the Sierra Nevada; in western Oregon, Washington, and southern British Columbia often re- placed by the var. Lyallii, Sarg., with leaves tapering from a rounded or subcordate base, usually white below and often 7'-8' long, more glandular petioles, and narrow and less hairy scales of the pistillate ament, and in western Oregon and Washington one of the commonest trees on river banks, with tall clustered stems ; in the interior from the sierras of northern California to northern Montana, Colorado, and northern New Mexico by the var. caudata, Sudw., with smaller thicker and more coriaceous often more or less falcate leaves, wedge-shaped at the base, green above and below, with thicker and more densely flowered staminate aments, yellow branchlets, and larger often villous winter-buds. 7. Salix lucida, Muehl. Shining Willow. Leaves involute in the bud, lanceolate, gradually or abruptly narrowed and wedge-shaped or rounded at the base, acute at the apex, with long tapering points, finely serrate, 3'-5' long, I'-l^' wide, covered when they unfold with scattered pale caducous hairs, at maturity coriaceous, smooth and lustrous, dark green above, paler below, with broad yellow midribs, and slender primary veins arcuate and united near the margins; their petioles stout, yellow, puberulous, glandular at the apex, with several dark or yellow conspicuous glands, ^'-^' long ; stipules nearly semicircular, glandular-serrate, membranaceous, \'-\' broad, often persistent during the summer. FloTvers: aments erect, tomentose, on stout puberulous peduncles terminal on short leafy branches, the staminate oblong-cylindrical, densely flowered, about 1^' broad, the pistillate slender, elongated, l^'-2' long, of ten persistent until late in the season; their scales oblong or obovate, rounded, entire, erose or dentate at the apex, light yellow, nearly glabrous or coated on the back with pale hairs, often ciliate on the margins; stamens usually 5, with elongated free filaments slightly hairy at the base; SALICACE^ 175 ovary narrowly cylindrical, long-stalked, elongated, glabrous, with nearly sessile emarginate stigmas. Fruit cylindrical, about ^' long, lustrous. A tree, occasionally 25° high, with a short trunk 6'-8' in diameter, erect branches forming a broad round-topped symmetrical head, and stout glabrous branchlets dark orange color and lustrous in their first season, becoming darker and more or less tinged with red the following year; usually smaller and shrubby in habit. Winter- buds narrowly ovate, acute, light orange-brown, lustrous, about ^' long. Bark thin, smooth, dark brown slightly tinged with red. Distribution. Banks of streams and swamps ; Newfoundland to the shores of Hudson's Bay and northwestward to the valley of the Mackenzie River and the eastern base of the Rocky Mountains, southward to southern Pennsylvania and west- ward to eastern Nebraska; very abundant at the north, rare southw^ard. **Stamens 2; aments terminal and axillary. 8. Salix fluviatilis, Nutt. Sand Bar Willow. Leaves involute in the bud, linear-lanceolate or often somewhat falcate, gradually narrowed at the ends, long-pointed, dentate, with small remote spreading callous glandular teeth, 2'-6' long, ^'-^' wide, when the}' unfold coated below with soft lus- trous silky hairs, at maturity thin, glabrous, light yellow-green, darker on the upper than on the lower surface, with yellow midribs, slender arcuate primary veins, and slender reticulate veinlets, their petioles grooved, \'-\' long; stipules ovate-lance- olate, foliaceous, about ^' long, deciduous. Flowers: aments on stout peduncles covered with soft silky pale pubescence, the pistillate oblong-cylindrical, about V long, I' broad, terminal or axillary on short or elongated lateral branches, the staminate cylindrical, elongated, 2' or 3' long, about ^' broad, terminal on leafy branches; their scales obovate-oblong, entire, erose or dentate above the middle, light yellow-green, densely villous on the outer surface, slightly hairy on the inner; stamens 2, with free filaments slightly hairy at the base; ovary oblong-cylindrical, acute, short-stalked, glabrous or pubescent, with large sessile deeply lobed stigmas. Fruit light brown, glabrous or villous, about ^' long. A tree, usually about 20° high, with a trunk only a few inches in diameter, spread- 176 TREES OF NORTH AMERICA ing by stoloniferous roots into broad thickets, short slender erect branches, and slender glabrous light or dark orange-colored or purplish red branchlets, growing darker after their first season; occasionally 60°-70" high, with a trunk 2° in diame- ter; often a shrub not more than 5°-6° tall. "Winter-buds narrowly ovate, acute, chestnut-brown, about ^' long. Bark ^'-\' thick, smooth, dark brown slightly tinged with red and covered with small closely appressed irregularly shaped scales. Wood light, soft, light brown tinged with red, with thin light brown sapwood. Distribution. River banks and sand-bars; shores of Lake St. John and the Island of Orleans in the Province of Quebec, southward through western New England to the valley of the Potomac River, northwestward to within the Arctic Circle in the valley of the Mackenzie River and to British Columbia and California, and southward through the basin of the Mississippi River to northern Mexico and Lower California; exceed- ingly common in the valley of the Mississippi, attaining its largest size in southern Indiana and Illinois and in southern Arkansas; gradually becoming smaller and less common toward the Atlantic seaboard; abundant in all the prairie region of British America and lining the banks of streams flowing eastward through the central plateau of the continent, where it is the commonest Willow; common in Texas west of the valley of the Pecos River; rare in New Mexico and Arizona south of the Colorado plateau; common in the region adjacent to the Pacific coast from Lower California to northern British Columbia. From western Texas to northern California often replaced by the var. argyrophylla, Sarg., with leaves and capsules covered with silky pale tomentum, and by the var. exigua, Sarg., with very short linear leaves. 9. Salix sessilifolia, Nutt. Willow. Leaves involute in the bud, lanceolate or linear-lanceolate, often slightly falcate, narrowed at the ends, long-pointed at the apex, entire or dentate above the mid- dle, covered as they unfold with hoary tomentum, at maturity light yellow-green, glabrous or puberulous above, villous below, with silky lustrous white hairs, l^'-5' long, j-^'-^ wide, with yellow midribs and obscure arcuate veins; their petioles stout, pubescent, rarely more than ^ ^^ng; stipules acute, hoary pubescent, about ^ long, deciduous. Flowers: aments cylindrical, densely flowered, terminal and axillary on leafy branches, 3' long on the pistillate plant, not more than one half as long and SALICACE^ 177 broader on the starainate plant; their scales obloug-obovate, erose and denticulate above the middle, pale yellow-green and villous on the back, with pale silky hairs, those of the staniinate anient rather broader than those of the pistillate; stamens 2, with free glabrous filaments; ovary oblong-cylindrical, short-stalked, villous, crowned with a nearly sessile bifid stigma. Fruit elongated, cylindrical, bright red- brown, more or less villous, about \' long. A tree, occasionally 30^ high, with a trunk 1° in diameter, slender erect branches forming a narrow head, and slender branchlets coated at first with hoary pubescence o-radually deciduous during the summer, becoming reddish brown; or often, espe- cially at the south, reduced to a tall or a low shrub. Winter-buds narrow, ovate, acute, nearly |' long. Bark nearly ^' thick, dark brown, slightly fissured and cov- ered with thick irregular closely appressed scales. Wood light, soft, close-grained, light red, with thin nearly white sapwood. Distribution. Banks of streams from the shores of Puget Sound, southward through western Washington and Oregon and along the western slopes and foothills of the Sierra Nevada to the valleys and foothills of the coast ranges of southern California, where it is one of the commonest Willows. 10. SaUx taxifoUa, H. B. K. Willow. Leaves Involute in the bud, linear-lanceolate, narrowed at the ends, acute, slightly falcate and mucronate at the apex, entire and obscurely dentate above the middle, coated as they unfold with long soft white hairs, at maturity pale gray-green, slightly puberulous, ^'-Ij' long, -12'-^' wide, with slender midribs, thin arcuate veins, and thickened slightly re volute margins; their petioles stout, puberulous, rurelj ^^'l^ng; stipules ovate, acute, scarious, minute, caducous. Flowers: aments densely flowered, oblong-cylindrical or subglobose, j'— |' long, terminal, or terminal and axillary on the staminate plant, on short leafy branches; their scales oblong or obovate, rounded or acute and sometimes apiculate at the apex, coated on the outer surface with hoary tomentum and pubescent or glabrous on the inner; stamens 2, with free filaments hairy below the middle; ovary ovate-conical, short-stalked or subsessile, villous, with pale hairs, with nearly sessile deeply emarginate stigmas. Fruit cylindrical, long- pointed, bright red-brown, more or less villous, short-stalked, about ^ long. 178 TREES OF NORTH AMERICA A tree, often 40°-50° high, with a trunk 18' in diameter, erect and drooping branches forming a broad open head, and slender branchlets covered during their first season with hoary tomentum, becoming light reddish or purplish brown and much roughened by the elevated persistent leaf-scars. Winter-buds ovate, acute, ri^. 145) dark chestnut-brown, puberiilous, about ^^g' long and nearly as broad as long. Bark of the trunk |'-1' thick, light gray-brown, and divided by deep fissures into broad flat ridges covered by minute closely appressed scales. Distribution. Near El Paso, Texas, and along mountain streams in southern Ari- zona, southward through Mexico to Guatemala, and in Lower California. 2. Scales of the aments dark-colored at the apex, stamens 2. "^Capsule glabrous. 11. Salix balsamifera, Barr. Willo"w. Leaves involute in the bud, ovate to ovate-lanceolate, acute or acuminate, broad and rounded and usually subcordate at the base, finely serrate, with glandular teeth, balsamic particularly while young, when they unfold thin, pellucid, red and coated below with long slender caducous hairs, at maturity thin and firm, dark green above, pale and glaucous below, 2'-4' long, I'-l^' wide, with yellow midribs and conspicuous reticulate veinlets; their petioles reddish or yellow, y-\' long; stipules often want- ing or on vigorous shoots foliaceous, broadly ovate and acute. Flo^vers: aments cylindrical, I'-l^' long, on long slender leafy branches; their scales obovate, acute, rose-colored, coated with long white hairs; stamens 2, with free filaments and reddish ultimately yellow anthers; ovary narrow, long-stalked, gradually contracted above the middle, with nearly sessile emargiuate stigmas. Fruit ovate-conical, long-stalked, ^' long, dark orange color. Usually a shrub, often making clumps of crowded slender erect stems generally destitute of branches except near the top, rarely arborescent, with a height of 25°, a trunk 12'-14' in diameter, erect branches, and comparatively stout reddish brown branchlets becoming olive-green in their second year and marked with narrow slightly raised leaf-scars. Winter-buds acute, much-compressed, bright scarlet, very lustrous, about \' long. Bark thin, rather smooth, dull gray. SALICACE^ 179 Distribution. Cold wet bogs; coast of Labrador to northern Maine, northern New Hampshire and New York, and westward to the valley of the Saskatchewan, and to northern Michigan and Minnesota; known to become arborescent only near Fort Kent on the St. John River, Maine. 12. Salix lasiolepis, Benth. White Willow. Leaves involute in the bud, oblanceolate to lanceolate-oblong, often inequilateral and occasionally falcate, gradually or abruptly wedge-shaped or rounded at the base, acute or acuminate or rarely rounded at the apex, entire or remotely serrate, pilose above and coated below with thick hoary tomentum when they unfold, at maturity thick and subcoriaceous, conspicuously reticulate-venulose, dark green and glabrous above, pale or glaucous and pubescent, or puberulous below, 3'-6' long, ^'-V wide, with broad yellow midribs and slender arcuate veins forked and united within the slightly thickened and revolute margins; their petioles slender, ^'-^' long; stipules ovate, acute, coated with hoary tomentum, minute and caducous, or sometimes foli- aceous, semilunar, acute or acuminate, entire or denticulate, dark green above, pale 180 TREES OF NOUTII AMERICA below, persistent. Flo'wers: lunents erect, cylindrical, slightly flexuose, densely llowered, nearly sessile, on short tonientose branelilets, 1^' lonj,'-, the staminate ^ thick, and nearly twice as thick as the pistillate; their scales ohlonj^-obovate, rounded or acute at the apex, dark-colored, clothed with long crisp white hairs, persistent under the fruit; staniens 2, with elongated glabrous filaments more or less united below the middle; ovary narrow, cylindrical, acute and long-pointed, dark green, glabrous, with a short style and broad nearly sessile stigmas. Fruit oblong, cylindrical, light reddish brown, about ^ long. A tree, 20°-30°, or occasionally 50° high, with a trunk 12'-18' in diameter, slender erect branches forming a loose open head, and stout branchlets coated at first with hoary tomentum, bright yellow or dark reddish brown and puberulous or pubescent during their first year, becoming darker and glabrous in their second season; or often at the north and at high elevations a low shrub. Winter-buds ovate, acute, com- pressed, cojitracted laterally into thin wing-like margins, light brownish yellow, glabrous or puberulous. Bark on young stems and on the branches thin, smooth, light gray-brown, becoming on old trunks dark, about ^ thick, roughened by small lenticels and broken into broad flat irregularly connected ridges. "Wood light, soft, close-grained, light brown, with thick nearly white sapwood; in southern California often used as fuel. Distribution. Banks of streams in low moist ground; valley of the Klamath River southward through western California to Lower California, and on the moun- tains of southern Arizona; one of the commonest and most variable of the California Willows, growing at the south at low altitudes as a large tree; on the western slopes of the Sierra Nevada and in Arizona reduced to a many-stemmed shrub. 13. Salix cordata, var. Mackenzieana, Hook. Willo"w. Leaves involute in the bud, lanceolate to oblanceolate, gradually narrowed or wedge-shaped or rounded at the base, long-pointed, occasionally slightly falcate above the middle, finely and obscurely crenately serrate or entire, reddish and pilose with caducous pale hairs when they unfold, at maturity thin and firm in texture, dark green above, pale below, 2'-3' long, about ^' wide, with slender yellow midribs, arcuate veins, and obscure reticulate veinlets; their petioles thin, yellow, SALICACE^ 181 about y long; stipules reniform, conspicuously veiued, about ^^' broad, usually persistent during the season. Flowers: aments densely flowered, oblong, cylindrical, erect, often more or less curved, about 1^' long, terminal on short branches ; their scales oblong-obovate, acute, dark-colored, glabrous except at the base, persistent under the fruit; stamens 2, with elongated free glabrous filaments; ovary cylindri- cal, long-stalked, elongated, gradually narrowed into a slender style, with spreading emarginate stigmas. Fruit elongated, light brown slightly tinged with red, about i' long. A small tree, with a slender trunk and upright branches forming a narrow shapely head, and slender branchlets marked with scattered lenticels, glabrous or slightly puberulous and often tinged with red at first, soon becoming yellow and lustrous, growing lighter colored in tlieir second year. Winter-buds ovate, rounded on the back, compressed and acute at the apex, bright orange color, about 1' long. Distribution. Shores of Great Slave Lake southward through the region at the eastern base of the Rocky Mountains to northern Idaho, and to Lake County, California, and now regarded as a western form of the shrubby Salix cordata, Muehl., one of the commonest and most variable of American Willows, ranging from the Arctic Circle to the northern United States, and from the shores of the Atlantic Ocean to British Columbia and California. 14. Salix Missouriensis, Bebb. Willow. Leaves involute in the bud, lanceolate or oblanceolate, gradually narrowed from above the middle to the wedge-shaped or rounded base, acuminate and long-pointed at the apex, finely serrate, with glandular teeth, coated with pale hairs on the lower surface and pilose on the upper surface when they unfold, soon becoming nearly gla- brous, at maturity thin and firm, dark green above, pale and often glaucous below, 4'-6' long, I'-iy wide, with slender veins often united near the margins and connected by reticulate coarse veinlets; their petioles stout, pubescent, or tomentose, ^'— I'long; stipules foliaceous, semicordate, pointed or rarely reniform and obtuse, serrate, with incurved teeth, dark green and glabrous on the upper side, coated on the lower with hoary tomentum, reticulate-venulose, often ^' long, deciduous or persistent during the season. Flowers: aments oblong-cylindrical, erect, densely flowered. 182 TREES OF NORTH AMERICA appearing early in February on short leafy branches, the staminate ly long and nearly \' wide and rather longer than the more slender pistillate aments becoming at maturity lax and 3' -4' long ; their scales oblong-obovate, light green, and clothed on the outer surface with long straight silvery hairs; stamens 2, with elongated free glabrous filaments; ovary cylindrical, short-stalked, beaked, glabrous, with a short style and spreading entire or slightly emarginate stigmas. Fruit narrow, long- pointed, light reddish brown, long-stalked. A tree, 40°-50° high, with a tall straight trunk 10'-12' or rarely 18' in diameter, rather slender upright slightly spreading branches forming a narrow open symmet- rical head, and slender branchlets marked by small scattered orange-colored lenticels, light green and coated during their first year with thick pale pubescence, becoming reddish brown and glabrous or puberulous in their second winter. Winter-buds ovate, rounded on the back, flattened or acute at the apex, reddish brown, hoary- tomentose, nearly V long. Bark thin, smooth, light gray slightly tinged with red, and covered with minute closely appressed plate-like scales. Wood dark red-brown, with thin pale sapwood; durable, used for fence-posts. Distribution. Deep sandy alluvial bottom-lands of the Missouri River in western Missouri, through northeastern Kansas, and from the neighborhood of St. Louis to northwestern Iowa. ** Capsule pubescent (glabrous in 19). ~*-Leaves glabrous or nearly so at maturity (pubescent sometimes in 15). 15. Salix discolor, Muehl. Glaucous Willo-w. Leaves convolute in the bud, oblong or oblong-obovate or rarely lanceolate, gradu- ally narrowed at the ends, remotely crenulate-serrate, as they unfold thin, light green often tinged with red, pubescent above and coated with pale tomentum below, at maturity thick and firm, glabrous, conspicuously reticulate-venulose, bright green above, glaucous or silvery white below, 3'-5' long, |'-1^' wide, with broad yellow midribs and slender arcuate primary veins; their petioles slender, ^'-1' long; stipules foliaceous, semilunar, acute, glandular-dentate, about \' long, deciduous. Flowers : aments appearing late in winter or in very early spring, erect, terminal on abbre- SALICACE^ 183 viated branches coated with thick white tomentmn, with leaves reduced to minute deciduous scales, obloug-cyliudrical, about V long and -|' thick, the staniinate soft and silky before the flowers open and densely flowered ; their scales oblong-obovate, dark reddish brown toward the apex, covered on the back with long silky silvery white hairs; stamens 2, with elongated glabrous filaments; ovary oblong-cylindrical, long- stalked, narrowed above the middle, villous, with a short distinct style and broad spreading entire stigmas. Fruit cylindrical, more or less contracted above the middle, long-pointed, light brown, coated with pale pubescence. A tree, rarely more than 25° high, with a trunk about 1° in diameter, stout as- cending branches forming an open round-topped head, and stout branchlets marked by occasional orange-colored lenticels, dark reddish purple and coated at first with pale deciduous pubescence; more often shrubby, with numerous tall straggling stems. Winter-buds semiterete, flattened and acute at the apex, about f ' long, dark red- dish purple and lustrous. Bark ^' thick, light brown tinged with red, and divided by shallow fissures into thin plate-like oblong scales. Wood light, soft, close-grained, brown streaked with red, with lighter brown sapwood. Distribution. Moist meadows and the banks of streams and lakes; Nova Scotia to Manitoba, and southward to Delaware, southern Indiana and Illinois, and north- eastern Missouri; common. 16. Salix Bebbiana, Sarg. Willow. Leaves conduplicate in the bud, oblong-obovate to oblong-elliptical or lanceolate, gradually narrowed and wedge-shaped or rounded at the base, acuminate and short- pointed or acute at the apex, remotely and irregularly serrate usually only above the middle, or rarely entire; when they unfold pale gray-green, glabrous or villous, and often tinged with red on the upper surface and coated on the lower with pale tomen- tum or pubescence, at maturity thick and firm, dull green and glabrous or puberulous above, blue or silvery white and covered with pale rufous pubescence below, espe- cially along the midribs, veins, and conspicuous reticulate veinlets, l'-3' long, ^'-1' wide; their petioles slender, often pubescent, reddish, \'-^' long; stipules foliaceous, semicordate, glandular-dentate, sometimes nearly 1' long on vigorous shoots, decid- uous. Flowers: aments erect and terminal on short leafy branches; their scales 18-i TKEES OF NORTH AMERICA ovate or oblong, rounded at the apex, broader on the stanilnate than on the pistillate plant, yellow below, rose color at the apex, villose, witli long pale silky hairs, per- \ sistent under the fruit; staniinate cylindrical, obovate, narrowed at the base, densely Howered, |'-1' long, ^-4' broad; i)i.stillate oblong-cylindrical, loosely flowered, about 1' long; stamens 2, with free glabrous filaments; ovary cylindrical, villous, with long silky white hairs, gradually narrowed at the apex into broad sessile entire or emar- ginate spreading yellow stigmas. Fruit elongated-cylindrical, gradually narrowed into a long thin beak, and raised on a slender stalk sometimes ^' long. A bushy tree, occasionally 25° high, with a short trunk G'-8' in diameter, stout ascending branches forming a broad round head, and slender branchlets coated at first with hoary deciduous tomentum, varying during their first winter from reddish purple to dark orange-brown, marked by scattered raised lenticels and roughened by conspicuous elevated leaf-scars, growing lighter colored and reddish brown in their second year; usually much smaller and often shrubby in habit. "Winter-buds oblong, gradually narrowed and rounded at the apex, full and rounded on the back, bright light chestnut-brown, nearly 1' long. Bark thin, reddish or olive-green or gray tinged with red, and slightly divided by shallow fissures into appressed plate- like scales. Distribution. Borders of streams, swamps, and lakes, hillsides, open woods and forest margins, usually in moist rich soil; valley of the St. Lawrence River to the shores of Hudson's Bay, the valley of the Mackenzie River within the Arctic Circle, Cook Inlet, Alaska, and the coast ranges of British Columbia, forming in the region west of Hudson's Bay almost impenetrable thickets with twisted and often inclin- ing stems; common in all the northern states, ranging southward to Pennsylvania and westward to Minnesota, through the Rocky Mountain region from western Idaho and northern Montana to the Black Hills of Dakota and western Nebraska, and southward through Colorado to northern Arizona; ascending as a low shrub in Colorado to elevations of 10,000°. 17. Salix Nuttallii, Sarg. Black Willow. Leaves involute in the bud, oblong-obovate, gradually Jiarrowed and wedge- shap'ed at the often unequal base, acute or abruptly acuminate, with short or long points, or broad and rounded at the apex, entire or remotely and irregularly cre- nately serrate, pilose above and coated below with pale pubescence or tomentum when they unfold, at maturity thin and firm, dark yellow-green and lustrous above, pale and glabrous or pilose below, l^'-4' long, ^'-1^' wide, with broad yellow pubescent midribs and slender veins forked and arcuate within the slightly thickened and revo- lute margins and connected by conspicuous reticulate veinlets, their petioles slender, puberulous, \'-^' long; stipules foliaceous, semilunar, glandular-serrate, ^'-^ long, caducous. Flovsrers: aments oblong-cylindrical, erect, nearly sessile, on short tomen- tose branches, the staniinate about 1' long and rather more than ^' thick, the pistillate 1^' long, about |' thick, their scales oblong, narrowed at the ends, acute at the apex, dark-colored, covered with long white hairs, persistent under the fruit; stamens 2, with free glabrous filaments; ovary cylindrical, short-stalked, long-pointed, coated with hoary pubescence, with broad nearly sessile emarginate stigmas. Fruit light reddish brown, covered with pale pubescence, about |' long. A tree, occasionally 30° high, with a short trunk rarely exceeding 1° in diameter, slender pendulous branches forming a rather compact round-topped shapely head, and stout branchlets marked by scattered yellow lenticels, coated at first with pale SALICACE^ 185 early deciduous pubescence, becoming bright yellow or dark orange color, and in their second year dark red-brown and much roughened by the conspicuous leaf-scars. "Winter-buds ovate, acute, nearly terete or slightly flattened, with narrow lateral wing-like margins, light or dark orange color, glabrous or pilose at the base, about V long. Bark thin, dark brown slightly tinged with red, and divided into broad flat ridges. Wood light, soft, close-grained, light brown tinged with red, with thick nearly white sapwood. * Distribution. Borders of mountain streams usually at high elevations; southern Assiniboia and the banks of the Columbia River in British Columbia, southward through the Rocky Mountain region to northern New Mexico and Arizona; in Cali- fornia on the Sierra Nevada and on the San Bernardino Mountains as a low shrub pi^ iJ6 up to elevations of 10,000° above the sea. In the Pacific coast region from Alaska to Santa Barbara, California, represented by the var. brachystachys, Sarg., a tree sometimes 70° high, with a tall trunk often 2^' in diameter, stouter branches, larger pubescent winter-buds, larger obovate leaves, and rather shorter pistillate aments; the most abundant Willow of western Washington and Oregon, and of its largest size in swamp and bottom-lands near the shores of Puget Sound. 18. Salix amplifolia. Gov. Willow. Leaves revolute in the bud, oval to broadly obovate, rounded or broadly pointed at the apex, gradually or abruptly narrowed at the cuneate base, dentate-serrulate or entire, densely villous when they unfold, with long matted white hairs, at maturity nearly glabrous, pale yellow-green above, slightly glaucous below, 2^-2^ long, V-\\' wide, with midribs broad and hoary-tomentose toward the base of the leaf and thin and glabrous above the middle; their petioles slender, tomentose. FloTvers: aments appearing about the middle of June, stout, pedunculate, tomentose, on lateral leafy branchlets, the staminate l^'-2' long and shorter than the pistillate, their scales oblanceolate or lanceolate, dark brown or nearly black, covered with long pale hairs; stamens 2, with slender elongated glabrous filaments; ovary ovate-lanceolate, short- stalked, glabrous or slightly pubescent, gradually narrowed into the elongated slender style crowned with a 2-lobed slender stigma. Fruit ovoid-lanceolate, glabrous, short-stalked, \' long. 186 TREES OF NORTH AMERICA A tree, occasionally 25° high, with a trunk a foot in diameter, and stout branch- lets conspicuously roughened by the large elevated U-shaped leaf-scars, and marked by occasional pale lenticels, coated at first with thick villous pubescence, becoming during their second and third years dark dull reddish purple. Distribution. Sand dunes on the shores of Yakutat Bay and Disenchantment Bay, Alaska. -i — ^Leaves pubescent or tomentose below. 19. Salix Hookeriana, Hook. Willow. Leaves oblong to oblong-obovate, gradually narrowed and wedge-shaped or rounded at the base, acute or abruptly acuminate, with short points, or rarely rounded and frequently apiculate at the apex, coarsely crenately serrate, especially those on vigorous shoots, or entire, when they unfold villous, with pale hairs, or tomentose above and clothed below with silvery white tomentum, at maturity thin and firm, bright yellow-green and lustrous, nearly glabrous or tomentose on the upper surface, pale and glaucous and tomentose or pubescent on the lower surface, SALIC ACE^ 187 especially along the midribs and slender arcuate primary veins and conspicuous reticulate veinlets, 2'-6' long, I'-l^' wide; their petioles stout, tomentose, ^'-^' long. Flo'wers: aments oblong-cylindrical, erect, rather lax, often more or less curved, about 1^' long, on short tomentose branchlets, the staminate |' thick and rather thicker than the pistillate; their scales oblong-obovate, yellow, coated with long pale hairs, the staminate rounded above and rather shorter than the more acute scales of the pistillate ament persistent under the fruit; stamens 2, with free elongated glabrous filaments; ovary conical, stalked, with a slender stalk about one third as long as the scale, gradually narrowed above, with a slender elongated bright red style and broad spreading entire stigmas. Fruit oblong-cylindrical, narrowed above, about Y long. A tree, occasionally 30° high, with a trunk 1° in diameter, and stout branchlets marked by large scattered orange-colored lenticels, covered during their first season with hoary tomentum and rather bright or dark red-brown and pubescent in their second summer; more often shrubby, with numerous stems 4'-8' thick and lo°-20° high; frequently a low bush, with straggling almost prostrate stems. Win- ter-buds ovate, acute, nearly terete, dark red, coated with pale pubescence, about i' long. Bark nearly ^ thick, light red-brown, slightly fissured and divided into closely appressed plate-like scales. Wood light, soft, close-grained, light brown tinged with red, with thin nearly white sapwood. Distribution. Borders of salt marshes and ponds and sandy coast dunes; Van- couver Island southward along the shores of Puget Sound and the Pacific Ocean to southern Oregon. 20. Salix Sitchensis, Bong. Willow. Leaves conduplicate in the bud, oblong-obovate to oblanceolate, entire or dentate, with remote minute spreading glandular teeth, gradually narrowed and wedge-shaped at the base, acute or acuminate, or rounded and short-pointed, or rounded at the apex, when they unfold pubescent or tomentose on the upper surface, and coated on the lower with lustrous white silky pubescence or tomentum persistent during the first season or sometimes deciduous from the leaves of vigorous young shoots, at maturity thin and firm, dark green, lustrous and glabrous above, with the excep- tion of the pubescent midribs, 2'-5' long, f '-1^' wide, with conspicuous slender veins 188 TREES OF NORTH AMERICA arcuate and united within the margins and prominent reticulate veinlets; their petioles stout, pubescent, rarely ^' long; stipules foliaceous, semilunar, acute or rounded at the apex, glandular-dentate, coated below with hoary tomentum, often ^' long, caducous. Flowers: aments cylindrical, densely flowered, erect on short tomentose branches, the staminate l^'-2' long and ^' broad, the pistillate 2^ '-3' long, and ^' broad; their scales yellow or tawny, the staminate oblong-obovate, rounded at the apex, covered with long white hairs, much longer than the more acute pubescent scales of the pistil- late anient; stamen 1, with an elongated glabrous filament, or very rarely 2, with filaments united below the middle or nearly to the apex; ovary short-stalked, ovate, conical, acute, and gradually narrowed into the elongated style, with entire or slightly emarginate stigmas. Fruit ovate, narrowed above, light red-brown, about Y long. * A much-branched tree, occasionally 25°-30° high, with a short contorted often inclining trunk sometimes 1° in diameter, and slender branchlets coated at first with hoary tomentum, pubescent and tomentose and dark red-brown or orange color during their first winter, becoming darker, pubescent or glabrous, and sometimes covered with a glaucous bloom in their second season; more often shrubby and 6°-15° tall. Winter-buds acute, nearly terete, light red-brown, pubescent or puberulous, about Y long. Bark about ^' thick and broken into irregular closely appressed dark brown scales tinged with red. Wood light, soft, close-grained, pale red, with thick nearly white sapwood. Distribution. Banks of streams and low moist ground; Cook Inlet and Kadiak Island, Alaska, southward in the neighborhood of the coast to Santa Barbara, Cali- fornia. 21. Salix Alaxensis, Gov. Feltleaf Willow. Leaves revolute in the bud, elliptical-lanceolate to obovate, acute or occasionally rounded at the apex, gradually narrowed below into short thick petioles, coated above as they unfold with thin pale deciduous tomentum and covered below with a thick mass of snowy white lustrous hairs persistent on the mature leaves, entire, often somewhat wrinkled, dull yellow-green above, 2'-4', long, I'-l^' wide, with broad yellow midribs; stipules linear-lanceolate to filiform, entire, ^'-f long, usually persistent until midsummer. Flowers: aments appearing in June when the leaves are nearly fully grown, stout, erect, tomentose, stalked, on lateral pendulous branchlets. BETULACE^ 189 the staminate I'-l^' long, much shorter than the pistillate; their scales oblong-ovate, rounded at the apex, dark-colored, and coated with long silvery white soft hairs; stamens 2, with slender elongated filaments; .ovary acuminate, short-stalked, covered with soft pale hairs, gradually narrowed into the elongated slender style with 2-lobed stigmas. Fruit nearly sessile, ovate, acuminate, covered with close dense pale tomentum, ^' long. A tree, sometimes 30° high, with a trunk 4'-6' in diameter, and stout branchlets thickly coated at first with matted white hairs, becoming in their second year gla- brous, dark purple, lustrous, marked by large elevated pale scattered lenticels and much roughened by large U-shaped leaf-scars; often shrubby and in the most exposed situations frequently only a foot or two high, with semiprostrate stems. Distribution. Coast of Alaska from the Alexander Archipelago to Cape Lis- bourne, and eastward to the valley of the Mackenzie River and to the shores of Coronation Gulf; the only arborescent Willow in the coast region west and north of Kadiak Island; attaining its largest size from the Shumagin Islands eastward. IX. BETULACEiE. Trees, with sweet watery juice, without terminal buds, their slender terete branchlets marked by numerous pale lenticels and lengthening by one of the upper axillary buds formed in early summer, and alternate simple penniveined usually doubly serrate deciduous stalked leaves, obliquely plieately folded along the primary veins, their petioles in falling leaving small semioval slightly oblique scars showing three equidistant fibro-vascular bundle-scars ; stipules inclosing the leaf in the bud, fugacious. Flowers vernal, appearing with or before the unfolding of the leaves, or rarely autumnal, moncecious, the stami- nate 1-3 together in the axils of the scales of an elongated pendulous lateral ament and composed of a 2— 4-parted membranaceous calyx and 2-20 sta- mens inserted on a receptacle, with distinct filaments and 2-celled erect extrorse anthers opening longitudinally, or without a calyx, the pistillate in short lateral or capitate aments, with or without a calyx, a 2-celled ovary, nar- rowed into a short style divided into two elongated branches longer than the scales of the ament and stigmatic on the inner face or at the apex, and a single ana- tropous pendulous ovule in each cell of the ovary. Fruit a small mostly 1-celled 1-seeded nut, the outer layer of the shell light brown, thin and membranaceous, the inner thick, hard, and bony. Seed solitary by abortion, filling the cavity of the nut, suspended, without albumen, its coat membranaceous, light chestnut- brown ; cotyledons thick and fleshy, much longer than the short superior radi- cle turned toward the minute hilum. Of the six genera, all confined to the northern hemisphere, five are found in North America; of these only Corylus is shrubby. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT GENERA. Scales of the pistillate ament deciduous ; nut wingless, more or less inclosed in an involucre formed by the enlargement of the bract and bractlets of the flower ; staminate flowers solitary in the axjls of the scales of the ament ; calyx 0 ; pistillate flowers with a calyx. Staminate aments covered during the winter : involucre of the fruit flat, 3 -cleft, foli- aceous. 1. Carpinus. Staminate aments naked during the winter : involucre of the fruit bladder-like, closed. 2. Ostrya. 190 TREES OF NORTH AMERICA Scales of the pistillate ament persistent and forming a woody strobile ; nut without an in- volucre, more or less broadly winged ; staminate flowers 3-6 together in the axils of the scales of the ament ; calyx present ; pisl^llate flowers without a calyx. Pistillate amenta solitary, their scales 3-lobed, becoming thin, brown, and woody, de- ciduous; stamens 2; filaments 2-branched, each division bearing a half -anther ; winter-buds covered by imbricated scales. 3. Betula. Pistillate aments racemose, their scales erose or 5-toothed, becoming thick, woody, and dark-colored, persistent ; stamens 1-3 or 4 ; filaments simple ; wings of the nut often reduced to a narrow border ; winter-buds without scales. 4. Alnus. 1. CARPINUS, L. Hornbeam. Trees, with smooth close bark, hard strong close-grained wood, elongated conical buds covered by numerous imbricated scales, the inner lengthening after the open- ing of the buds. Leaves open and concave in the bud, ovate, acute, often cordate; stipules strap-shaped to oblong-obovate. Flowers : staminate in aments emerging in very early spring from buds produced the previous season near the ends of short lateral branchlets of the year and inclosed during the winter, and composed of 3-20 stamens crowded on a pilose receptacle adnate to the base of a nearly sessile ovate acute coriaceous scale longer than the stamens; filaments short, slender, 2-branched, each branch bearing a 1-celled oblong yellow half-anther hairy at the apex; pistillate in lax semierect aments terminal on leafy branches of the year, in pairs at the base of an ovate acute leafy deciduous scale, each flower subtended by a small acute bract with two minute bractlets at its base; calyx adnate to the ovary and dentate on the free narrow border. Nuts ovate, acute, compressed, conspicuously longitudinally ribbed, bearing at the apex the remnants of the calyx, marked on the broad base by a large pale scar and separating at maturity in the autumn from the leaf-like 3-lobed conspicuously serrate green involucres formed by the enlargement of the bract and bractlets of the flowers and inclosing only the base of the nuts, fully grown at mid- summer and loosely imbricated into a long-stalked open cluster. Carpinus is confined to the northern hemisphere, and is distributed from the Province of Quebec through the eastern United States to the highlands of Central America in the New World, and from Sweden to southern Europe, Asia Minor, the temperate Himalayas, central China and Japan in the Old World. Ten or twelve species are recognized; one only is American. Of the exotic species, the European and west Asian Carpinus Betulus, L., is frequently planted as an ornamental tree in the northeastern United States, where some of the species of eastern Asia promise to become valuable. Carpinus is the classical name of the Hornbeam. 1. Carpinus Caroliniana, "Walt. Hornbeam. Blue Beech. Leaves often somewhat falcate, long-pointed, sharply doubly serrate, with stout spreading glandular teeth, except at the rounded or wedge-shaped often unequal base, pale bronze-green, and covered with long white hairs when they unfold, at maturity thin and firm, pale dull blue-green above, light yellow-green and glabrous or puberulous below, with small tufts of white hairs in the axils of the veins, 2'-4' long, I'-lf wide, with slender yellow midribs, numerous slender veins deeply impressed and conspicuous above, and prominent cross veinlets, turning deep scarlet and orange color late in the autumn; their petioles slender, terete, bairy, about ^ long, bright red while young; stipules ovate-lanceolate, acute, pubescent, hairy on the BETULACE^ 191 margins, bright red below, light yellow-green at the apex, ^'long. Flovrers: stam- inate aments 1^' long when fully grown, with broadly ovate acute boat-shaped scales green below the middle, bright red above; pistillate aments ^'-f long, with ovate acute hairy green scales; styles scarlet. Fruit: nuts ^' long, their involucres short-stalked, with one of the lateral lobes often wanting, coarsely serrate, but usually on one margin only of the middle lobe, I'-l^' long, nearly 1' wide, on slender terete pubescent red-brown stems 5'-C' long. A bushy tree, rarely 40° high, with a short fluted trunk occasionally 2° in diameter, long slightly zigzag slender tough spreading branches pendulous toward the ends, and furnished with numerous short thin lateral branches growing at acute angles, and branchlets at first pale green coated with long white silky hairs, orange- brown and sometimes slightly pilose during the summer, becoming dark red and lustrous during the first winter and ultimately dull gray tinged with red. Winter- buds ovate acute, about ^' long, with ovate acute chestnut-brown scales white and scarious on the margins. Bark light gray-brown, sometimes marked with broad dark brown horizontal bands, y^'— f' thick. Wood light brown, with thick nearly white sap wood; sometimes used for levers, the handles of tools, and other small articles. Distribution. Borders of streams and swamps, generally in deep rich moist soil; southern and western Quebec to the northern shores of Georgian Bay, southward to Cape Malabar and the shores of Tampa Bay, Florida, and westward to northern Minnesota, eastern Nebraska and Kansas, the Indian Territory, and eastern Texas; reappearing on the mountains of southern Mexico and Central America; common in the eastern and central states, most abundant and of its largest size on the western slopes of the southern Alleghany ISIountains and in southern Arkansas and Texas. 2. OSTRYA, Scop. Hop Hornbeam. Trees, with scaly bark, heavy hard strong close-grained wood, and acute elongated winter-buds formed in early summer and covered by numerous imbricated scales, the inner lengthening after the opening of the bud. Leaves open and concave in the bud; their petioles slender, nearly terete, hairy; stipules strap-shaped to oblong- obovate. Flowers: staminate in long clustered sessile or short-stalked aments de- 192 TREES OF NORTH AMERICA veloped in early summer from lateral buds near the ends of short lateral branchlets of the year and coated while young with hoary tomcntum, naked and conspicuous during the winter, and composed of 3-14 stamens crowded on a pilose receptacle adnate to the base of an ovate concave scale rounded and abruptly short-pointed at the apex, ciliate on the margins, longer than the stamens; filaments short, 2-branched, each branch bearing a 1-celled half-anther hairy at the apex; pistillate in erect lax aments terminal on short leafy branches of the year, in pairs at the base of an elongated ovate acute leaf-like ciliate scale persistent until midsummer, each flower inclosed in a hairy sack-like involucre formed by the union of a bract and 2 bractlets; calyx adnate to the ovary, denticulate on the free narrow border. Nuts ovate, acute, flattened, obscurely longitudinally ribbed, crowned with the remnants of the calyx, marked at the narrow base by a small circular pale scar, inclosed in the much enlarged pale membranaceous conspicuously longitudinally veined reticu- late-venulose involucres of the flower, short, pointed and hairy at the apex, hirsute at the base, with sharp rigid stinging hairs, imbricated into a short strobile fully grown at midsummer, and suspended on a slender hairy stem. Ostrya is widely distributed in the northern hemisphere from Nova Scotia to Texas, northern Arizona, and to the highlands of southern Mexico and Guatemala in the New World, and through southern Europe and southwestern Asia and in northern Japan in the Old World. Of the four species now recognized two are American. Ostrya is the classical name of the Hop Hornbeam. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Leaves oblong-lanceolate, acuminate or acute at the apex. Leaves oval or obovate, acute or rounded at the apex. 1. O. Virginiana (A, C). 2. O. Knowltoni (F). 1. Ostrya Virginiana, K. Koch. Hop Hornbeam. Ironwood. Leaves oblong-lanceolate, gradually narrowed into long slender points or acute at the apex, narrowed and rounded, cordate or wedge-shaped at the often unequal base, sharply serrate, with slender incurved callous teeth terminating at first in tufts of caducous hairs, when they unfold light bronze-green, glabrous above and coated below on the midribs and primary veins with long pale hairs, at maturity thin and BETULACE^ 193 extremely tough, dark dull yellow-green above, light yellow-green and furnished with conspicuous tufts of pale hairs in the axils of the veins below, 3'-5' long, l^'-2' wide, with slender midribs impressed and puberulous above, light yellow and pubes- cent below, and numerous slender veins forked near the margins, turning clear yellow before falling in the autumn; their petioles about V long; stipules rounded and often short-pointed at the apex, ciliate on the margins, with long pale hairs, hairy on the back, about ^' long and |' broad. Flo-wers : staminate aments about 1' long during their first season, with light red-brown rather loosely imbricated scales narrowed into long slender points, becoming when the flowers open 2' long, with broadly obovate scales rounded and abruptly contracted at the apex into short points, ciliate on the margins, green tinged with red above the middle, light brown toward the base; pistillate aments slender, about \' long, on thin hairy stems, their scales lanceolate, acute, light green, often flushed with red above the middle, hirsute at the apex, decreasing in size from the lowest. Fruit : nuts '^' long, about ^' wide, rather abruptly narrowed below the apex, their involucres in clusters l^'-2' long and f'-l' wide, on slender stems about 1' in length. A tree, occasionally o0°-60° high, with a short trunk 2° in diameter, usually not more than20°-30° tall, with a trunk 18'-20' thick, long slender branches drooping at the ends and forming a round-topped or open head frequently 50° across, and slender, very tough branchlets, light green, coated with pale hairs when they first appear, becoming light orange color and very lustrous at midsummer, dark red-brown and lustrous during their first winter, and then gradually darker brown and losing their lustre. Winter-buds ovate, light chestnut-brown, slightly puberulous, ^' long. Bark about Y thick, broken into thick narrow oblong closely appressed plate-like light brown scales slightly tinged with red on the surface. Wood strong, hard, tough, durable, light brown tinged with red or often nearly white, with thick pale sapwood of 40-50 layers of annual growth; used for fence-posts, handles of tools, mallets, and other small articles. Distribution. Dry gravelly slopes and ridges often in the shade of oaks and other large trees; Island of Cape Breton and the shores of the Bay of Chaleur, through the valley of the St. Lawrence River, and along the northern shores of Lake Huron to western Ontario, northern Minnesota, the Black Hills of Dakota, eastern and northern Nebraska, eastern Kansas and southward to northern Florida and eastern Texas; most abundant and of its largest size in southern Arkansas and Texas. 2. Ostrya Kno"wltoni, Gov. Iron-wood. Leaves oval to obovate, acute or rounded at the apex, gradually narrowed and often unequal at the rounded wedge-shaped rarely cordate base, sharply serrate, with small triangular callous teeth, covered with loose pale tomentum when they un- fold, at maturity dark yellow-green and pilose above, pale and soft-pubescent below, l'-2' long, I'-l^' wide, with slender yellow midribs slightly raised on the upper side, few slender primary veins connected by obscure reticulate veinlets, turning dull yellow in the autumn before falling; their petioles ^'—|' loiig; stipules pale yellow- green, often tinged with red toward the apex, ^' long, about ^' wide. Flovrers: staminate aments on stout stalks covered with rufous tomentum and sometimes ^' long, rarely sessile, about ^ long during their first season, with dark brown puber- ulous scales gradually contracted into long slender subulate points, becoming when the flowers open I'-l^' long, with broadly ovate concave scales abruptly narrowed into nearly triangular points, yellow-green near the base, bright red above the mid- 194 TREES OF NORTH AMERICA die; pistillate aments about \' long, with ovate-lanceolate light yellow-green puber- ulous scales ciliate on the margins. Fruit: nuts \' long, gradually narrowed at the apex, their involucres 1' long, nearly glabrous at the apex, sometimes slightly stained with red toward the base, in clusters I'-l^' long and about |' broad, on stems ^' long. A tree 20°-30° high, with a trunk 12'-18' in diameter, usually divided 1° or 2° above the ground into 3 or 4 stout upright stems 4'-5' thick, slender pendulous often much contorted branches forming a narrow round-topped symmetrical head, and slender branchlets dark green and coated with hoary tomentum when they appear, dark red-brown and pubescent during their first summer, becoming light cinnamon- brown, glabrous, and lustrous in the winter, and ultimately ashy gray. Winter- buds ovate, dark red-brown, about -|' long. Bark internally bright orange color, I' thick, separating into loose hanging plate-like scales light gray slightly tinged with red, l'-2' long and 1' or 2' wide. Wood light reddish brown, with thin sap- wood. Distribution. Only on the southern slope of the canon of the Colorado River in Arizona at elevations of 6000°-7000° above the sea near Talfrey, seventy miles north of Flagstaff. 3. BETULA, L. Birch. Trees, with smooth resinous bark marked by long longitudinal lenticels, often sep- arating freely into thin papery plates, becoming thick, deeply furrowed, and scaly at the base of old trunks, short slender branches more or less erect and forming on young trees a narrow symmetrical pyramidal head, becoming horizontal and often pendu- lous on older trees, tough branchlets, short stout spur-like 2-leaved lateral branchlets much roughened by the crowded leaf-scars of many years, and elongated winter- buds covered by numerous ovate acute scales, and fully grown and bright green at midsummer. Leaves open and convex in the bud, often incisely lobed; stipules ovate and acute or oblong-obovate, scarious. Flowers in 3-flowered cymes, the lateral flowers of the cyme subtended by bractlets adnate to the base of the scale of the ament; staminate aments long, pendulous, solitary or clustered, appearing in summer or> autumn in the axils of the last leaves of a branchlet of the year or near the ends of the short lateral branchlets, erect and naked during the winter, their scales in the spring broadly ovate, rounded, short-stalked, yellow or orange-color below the middle BETULACE^ 195 and dark chestnut-browu and lustrous above; staminate flowers composed of a mem- brauaceous 4:-lobed calyx often 2-lobed by suppression, the anterior lobe obovate, rounded at the apex, as long as the stamens, much longer than the minute posterior lobe, and of 2 stamens inserted on the base of the calyx, with short 2-branched filaments, each branch bearing an erect half-anther; pistillate aments oblong or cylindrical, terminal on the short spur-like lateral branchlets, their scales closely imbricated, oblong-ovate, 3-lobed, light yellow, often tinged with red above the middle, accrescent, becoming brown and woody at maturity, and forming sessile or stalked erect or pendulous short or elongated strobiles usually ripening in the autumn, deciduous with the nuts from the slender rachis; calyx of the pistillate flower 0; ovary sessile, compressed, with styles stigmatic at the apex. Nut minute, oval or obovate, compressed, bearing at the apex the persistent stigmas, marked at the base by a small pale scar, the outer coat of the shell produced into a marginal wing interrupted at the apex. Betula is widely distributed from the Arctic Circle to Texas in the New World, and to southern Europe, the Himalayas, China, and Japan in the Old World, some species forming great forests at the north, or covering high mountain slopes. Of the twenty-eight or thirty species now recognized thirteen are found in North America; of these ten are trees. Of exotic species the European and Asiatic Betula alba, L., in a number of forms is a common ornamental tree in the northern states, where several of the Birch-trees of eastern Asia also flourish. Many of the species produce wood valued by the cabinet-maker, or used in the manufacture of spools, shoe-lasts, and other small articles. The thin layers of the bark are impervious to water and are used to cover buildings, and for shoes, canoes, and boxes. The sweet sap pro- vides an agreeable beverage. Betula is the classical name of the Birch-tree. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Strobiles oblong'-ovoid, nearly sessile, erect, the lateral lobes of their scales broad and slightly divergent ; wing not broader than the nut ; leaves with 9-11 pairs of veins; bark of young branches aromatic. Leaves heart-shaped or rounded at the base ; scales of the strobiles glabrous ; bark dark brown, not separating into thin layers. 1. B. lenta (A, C). Leaves wedge-shaped or slightly heart-shaped at the base ; scales of the strobiles pubescent ; bark yellow or silvery white, separating into thin layers. 2. B. lutea (A). Strobiles oblong or cylindrical, erect, spreading or pendant, on slender peduncles ; wing broader than the nut ; leaves with 5-9 pairs of veins. Strobiles oblong, erect, ripening in May or June, their scales pubescent, deeply lobed, the lateral lobes erect. Leaves rhombic-ovate, glaucescent and more or less silky-pubescent beneath; bark light reddish brown, separating freely into thin persistent scales. 3. B. nigra (A, C). Strobiles cylindrical, pendant or spreading. Scales of the strobiles pubescent, with recurved lateral lobes, the middle lobe trian- gular, nearly as broad as long ; leaves long-pointed, their petioles slender, elon- gated. Leaves triangular to rlioniboidal, bright green and lustrous ; bark chalky white, not separable into thin layers. 4. B. populifolia (A). 196 TREES OF NORTH AMERICA Leaves ovate, wedge-shaped to truncate or rounded at the base, dull blue-green ; bark white tinged with pink, lustrous, not easily separable into thin layers. 5. B. ccerulea (A). Scales of the strobiles with ascending or spreading lateral lobes, the middle lobe usually acuminate, longer than broad ; leaves acute or acuminate, their petioles more or less stout. Bark separating freely into thin layers. Bark creamy white and lustrous. Leaves ovate, dull dark green ; scales of the strobiles glabrous. 6. B. papyrifera (A, F). Bark reddish brown to grayish white ; scales of the strobiles ciliate. Leaves ovate, mostly rounded or cordate at the broad base ; scales of the strobiles puberulous. 7. B, occidentalis (B). Leaves ovate, cuneate ; scales of the strobiles glabrous except on the mar- gins ; young branches not or only slightly glandular. 8. B. Kenaica (B). Leaves rhomboidal to deltoid ; scales of the strobiles glabrous except on the margins ; young branchlets thickly covered with glands. 9. B. Alaskana (A, B). Bark not separable into thin layers, dark brown ; scales of the strobiles glabrous or puberulous. Leaves ovate, truncate or rounded at the broad base, dull green. 10. B. fontinalis (B, F, G). 1. Strobiles oblong-ovoid, erect; wing not broader than the nut ; leaves with 9-11 pairs of veins. 1. Betula lenta, L. Cherry Birch. Black Birch. Leaves ovate to oblong-ovate, acute or acuminate, gradually narrowed and often unequal at the cordate or rounded base, sharply serrate, with slender incurved teeth, when they unfold light green, coated on the lower surface and the margins with long white silky hairs, and slightly hairy on the upper surface, at maturity thin and membranaceous, dark dull green above, light yellow-green below, with small tufts of white hairs in the axils of the veins, 2 ^'-6' long, 1^-3' wide, with yellow midribs and primary veins prominent and hairy on the lower surface, and obscure reticulate BETULACE^ 197 cross veinlets, turning bright clear yellow late in the autumn; their petioles stout, hairy, deeply grooved ou the upper side, |'-1' long; stipules ovate, acute, light green or nearly white, scarious and ciliate above the middle. Flo"wers: staminate aments during the winter about |' long, nearly ^ thick, with ovate acute apiculate scales bright red-brown above the middle and light brown below, becoming 3'-4' long; pis- tillate aments ^'-f ' long, about |^' thick, with ovate pale green scales rounded at the apex; styles light pink. Fruit: strobiles oblong-ovoid, sessile, erect, glabrous, I'-l^' long, about ^' thick; nut obovate, pointed at the base, rounded at the apex, about as broad as its wing. A tree, with aromatic bark and leaves, 70°-80° high, with a trunk 2°-o° in diame- ter, slender branches finally spreading almost at right angles, becoming pendulous toward the ends and gradually forming a narrow round-topped open graceful head, and branchlets light green, slightly viscid and pilose when they first appear, soon turning dark orange-brown, lustrous during the summer, bright red-brown in their first winter, becoming darker and finally dark dull brown slightly tinged with red. Winter-buds ovate, acute, about ^' long, with ovate acute light chestnut-brown loosely imbricated scales, those of the inner ranks becoming -^'-f' long. Bark on young stems and branches close, smooth, lustrous, dark brown tinged with red, and marked by elongated horizontal pale lenticels, becoming on old trunks ^'-f ' thick, dull, deeply furrowed and broken into large thick irregular plates covered with closely appressed scales. Wood heavy, very strong and hard, close-grained, dark brown tinged with red, with thin light brown or yellow sapwood of 70-80 layers of annual growth; largely used in the manufacture of furniture and for fuel, and occa- sionally in ship and boatbuilding. Oil used medicinally as a flavor is distilled from the wood, and beer is obtained by fermenting the sugary sap. Distribution. Rich uplands from Newfoundland and the valley of the Saguenay River to northwestern Ontario, and central Iowa, and southward to Delaware, south- ern Indiana and Illinois, and along the Alleghany Mountains to western Florida, central Kentucky and Tennessee; a common forest tree at the north, and of its largest size on the western slopes of the southern Appalachian Mountains. 2. Betula lutea, Michx. Yellow Birch. Gray Birch. Leaves ovate to oblong-ovate, acuminate or acute at the apex, gradually narrowed to the rounded cuneate or rarely heart-shaped usually oblique base, sharply doubly serrate, when they unfold bronze-green or red and pilose, with long pale hairs above and on the under side of the midribs and veins, at maturity dark dull green above, yellow-green below, S'-4^' long, l^'-2' wide, with stout midribs and primary veins covered below near the base of the leaf with short pale or rufous hairs, turning clear bright yellow in the autumn before falling; their petioles slender, pale yellow, hairy, I'-l' long; stipules ovate, acute, light green tinged with pink above the middle, about ^' long. Flowers: staminate aments during the winter f'-l' long, about ^' thick, with ovate rounded scales light chestnut-brown and lustrous above the middle, ciliate on the margins, becoming 3'-3y long and i-' thick; pistillate aments about f'long, with acute scales, pale green below, light red and tipped with clusters of long white hairs at the apex, and pilose on the back. Fruit: strobiles erect, sessile, short-stalked, pubescent, V-l^ long, about |' thick; nut oval or obovate, about 1' long, rather broader than its wing. A tree, with slightly aromatic bark and leaves, occasionally 100° high, with a trunk 3°^° in diameter, spreading and more or less pendulous branches forming 198 TREES OF NORTH AMERICA a broad round-topped head, and branclilets at first green and covered witli long pale hairs, liglit orange-bi'own and pilose during their first summer, becoming glabrous and light brt)\vn slightly tinged with orange, and ultimately dull and darker. Win- ter-buds about Y long, somewhat viscid and covered with loose pale hairs during the summer, becoming light chestnut-brown, acute, and slightly j)uberulous in winter. Bark of young stems and of the branches bright silvery gray or light orange color, very lustrous, separating into thin loose persistent scales more or less rolled on the margins, becoming on old trees ^' thick, reddish brown, and divided by narrow irregu- lar fissures into large thin plates covered with minute closely apprcssed scales. Wood heavy, very strong, hard, close-grained, light brown tinged with red, with thin nearly white sapwood ; largely used in the manufacture of furniture, button and tassel moulds, boxes, the hubs of wheels, and for fuel. Distribution. Moist uplands, in rich soil, and one of the largest deciduous-leaved trees of northeastern America; Newfoundland and along the northern shores of the Gulf of St. Lawrence to the valley of Rainy River, and southward to northern Dela- ware and northern Minnesota, and along the Alleghany Mountains to the high peaks of North Carolina and Tennessee; very abundant and of its largest size in the east- ern provinces of Canada and in northern New York and New England ; small and rare in southern New England and southward. 2. Strobiles oblong or cylindrical ; wing broader than the nut ; leaves with 5-9 pairs of veins. *Strobiles oblong, erect, ripening in May or June. 3. Betula nigra, L. Red Birch. River Birch. Leaves rhombic-ovate, acute, abruptly or gradually narrowed and wedge-shaped at the base, doubly serrate, on vigorous young branches often more or less laciniately cut into acute doubly serrate lobes, when they unfold light yellow-green and pilose above and coated below, especially on the midribs and petioles, with thick white tomentum, at maturity thin and tough, l^'-3' long, l'-2' wide, deep green and lustrous above, glabrescent, pubescent, or ultimately glabrous below, except on the stout midribs and remote primary veins, turning dull yellow in the autumn ; their BETULACE^ 199 petioles slender, slightly flattened, tomentose, about ^ long; stipules ovate, rounded or acute at the apex, pale green, covered below with white hairs. Flowers: stami- nate aments clustered, during the winter about ^' long and -^^' thick, with ovate rounded dull chestnut-brown lustrous scales, becoming 2'-3' long and ^' thick; pistil- late aments about ^' long, with bright green ovate scales pubescent on the back, rounded or acute at the apex, and ciliate, with long white hairs. Fruit ripening in May and June; strobiles cylindrical, pubescent, I'-l-^' long, ^' thick, erect on stout tomentose peduncles ^ long; nut ovate or oval, ^' long, pubescent or puberulous at the apex, about as broad as its thin puberulous wing ciliate on the margin. A tree, 80°-90° high, with a trunk often divided 15°-20° above the ground into 2 or 3 slightly diverging limbs, and sometimes 5° in diameter, slender branches forming in old age a narrow irregular picturesque crown, and branchlets coated at first with thick pale or slightly rufous tomentum gradually disappearing before winter, becoming dark red and lustrous, dull red-brown in their second year, and then gradually growing slightly darker until the bark separates into the thin flakes of the older branches; or often sending up from the ground a clump of several small spreading stems forming a low bushy tree. Winter-buds ovate, acute, about ^' long, covered in summer with thick pale tomentum, glabrous or slightly puberulous, lustrous and bright chestnut-brown in winter, the inner scales strap-shaped, light brown tinged with red, and coated with pale hairs. Bark on young stems and large branches thin, lustrous, light reddish brown or silvery gray, marked by narrow slightly darker longitudinal lenticels, separating freely into large thin papery scales persistent for several years, and turning back and showing the light pink-brown tints of the freshly exposed inner layers, becoming at the base of old trunks from f'-l' thick, dark red-brown, deeply furrowed and broken on the surface into thick closely appressed scales. Wood light, rather hard, strong, close-grained, light brown, with pale sapwood of 40-50 layers of annual growth; used in the manufacture of furniture, woodenware, wooden shoes, and in turnery. Distribution. Banks of streams, ponds, and swamps, in deep rich soil often inundated for several weeks at a time; northeastern Massachusetts, Long Island, New York, southward to western Florida through the region east of the Alleghany Mountains except in the immediate neighborhood of the coast, through the Gulf 200 TREES OF NORTH AMERICA states to the valley of the Trinity River, Texas, and through the Mississippi valley to the Indian Territory, eastern Kansas, the bottom-lands of the Missouri River, in eastern Nebraska, central Minnesota, southern Wisconsin, and Ohio; the only semiaquatic species and the only species ripening its seeds in the spring or early summer; attaining its largest size in the damp semitropical lowlands of Florida, Louisiana, and Texas, and the only Birch-tree of such warm regions. Often cultivated in the northeastern states as an ornamental tree, and growing rapidly in cultivation, **Strohiles cylindrical, pendant or spreading. * -i-Scales of the strobiles pubescent, with recurved lateral lobes, the middle lobe nearly as broad as long • leaves long-pointed, their petioles slender, elongated. 4. Betula populifolia, Marsh. Gray Birch. "White Birch. Leaves nearly triangular to rhomboidal, long-pointed, coarsely doubly serrate, with stout spreading glandular teeth except at the broad truncate or slightly cordate or wedge-shaped base, thin and firm, dark green and lustrous and somewhat rough- ened on the upper surface early in the season by small pale glands in the axils of the conspicuous reticulate veinlets, 21'-3' long, l^'-2^' wide, with stout yellow midribs covered with minute glands, and raised and rounded on the upper side, and obscure yellow primary veins, turning pale yellow in the autumn; their petioles slender, terete, covered with black glands, often stained with red on the upper side, I'-l' long; stipules broadly ovate, acute, membranaceous, light green slightly tinged with red. Flcwers : staminate aments usually solitary or rarely in pairs, l^'-l^' long, about i' thick during the winter, becoming 2^'-4' long, with ovate acute apiculate scales; pistillate aments on glandular peduncles about ^ long, slender, about ^' long, with ovate acute pale green glandular scales, Fruit: strobiles cylin- drical, pubescent, obtuse at the apex, about f long and ^' thick, pendant or spreading on slender stems; nut oval or obovate, acute or rounded at the base, a little narrower i than its obovate wing. A short-lived tree, 20'-30' or exceptionally 40° high, with a trunk rarely 18' in diameter, short slender often pendulous more or less contorted branches usually BETULACE^ 201 clothing the stem to the ground and forming a narrow pyramidal pointed head, and brauchlets roughened by small raised leuticels, resinous-glandular when they first appear, like the unfolding leaves, gradually growing darker, bright yellow and lustrous before autumn like the young stems, bright reddish brown during the first winter, and ultimately white near the trunk; often growing in clusters of spreading stems springing from the stumps of old trees. "Winter-buds ovate, acute, pale chestnut-brown, glabrous, about \' long. Bark about ^ thick, dull chalky white on the outer surface, bright orange on the inner, close and firm, with dark triangular markings at the insertion of the branches, becoming at the base of old trees thicker, nearly black, and irregularly broken by shallow fissures. Wood light, soft, not strong, close-grained, not durable, light brown, with thick nearly white sapwood; used in the manufacture of spools, shoe-pegs and wood pulp, for the hoops of bar- rels, and largely for fuel. Distribution. Dry gravelly barren soil or on the margins of swamps and ponds; Nova Scotia and the valley of the lower St. Lawrence River southward to northern Delaware, and westward through northern New England and New York, ascending sometimes to altitudes of 1800°, to the southern shores of Lake Ontario; rare and local in the interior, very abundant in the coast region of New England and the middle states; springing up in great numbers on abandoned farm-lands or on lands stripped by fire of their original forest covering; most valuable in its ability to grow rapidly in sterile soil and to afford protection to the seedlings of more valuable and less rapidly growing trees. 5. Betula coerulea, Blanch. Blue Birch. Leaves ovate, long-pointed, broadly or narrowly concave-cuneate at the entire often unequal base, sharply mostly doubly serrate above, with straight or incurved glandular often apiculate teeth, covered above when they unfold with pale deciduous glands, at maturity dull bluish green on the upper surface, pale yellow-green on the lower, and sparingly villose along the under side of the slender yellow midribs and primary veins, 2'-21' long, I'-l^' wide, their petioles slender, f-l\' long, yellow more or less deeply tinged with red. Flowers: staminate aments usually in pairs, or singly or in 3's, ll'-2' long, about j\' thick, with ovate rounded short-pointed 202 TREES OF NORTH AMERICA scales; pistillate aments slender, about J' long, with acuminate pale green much re- flexed scales. Fruit: strobiles cylindrical, pubescent, slightly narrowed at the obtuse apex, about 1' long and ^' thick, pendant on slender peduncles \'-^' in length; nut oval, much narrower than its broad wing. A tree, rarely more than 30° high, with a trunk 8'-10' in diameter, small ascend- ing finally spreading branches, and slender branchlets marked by numerous small raised pale lenticels, purplish and sparingly villous when they first appear, soon glabrous, becoming bright red-brown; often forming clumps of several stems. Bark thin, white tinged with rose, lustrous, not readily separable into layers, the inner bark light orange color. Distribution. Moist slopes, Stratton and Windham, Vermont, at elevations of about 1800° (W. H. Blanchard), Haystack Mountain, Aroostook County, Maine (M. S. Fernald) ; the American representative of the European Betula pendula, Roth., and probably widely distributed over the hills of northern New England and eastern Canada. Apparently passing into a form with larger leaves often rounded and truncate at the broad base and 3'-3^' long and 2' wide, stouter staminate aments, and strobiles frequently 1^' long and \' thick (var. Blanchardi, Sarg. nov. nom. fig. 168 A). This under favorable conditions is a tree 60°-70° high, with a trunk 18' in diameter, and possibly when better known may be considered a distinct species; common with Betula ccerulea at Windham and Stratton, Vermont (H. W. Blanchard), and on a hill near the coast in Washington County, Maine (M L. Fernald'). -I — t- Scales of the strobiles unth ascending or spreading lateral lobes, the middle lobe longer than broad ; leaves acute or acuminate. ++Bark creamy white to reddish broum, separating freely into thin layers. 6. Betula papyrifera. Marsh. Canoe Birch. Paper Birch. Leaves ovate, acute or acuminate, with short broad points, coarsely usually doubly and often very irregularly serrate except at the rounded abruptly wedge- shaped, gradually narrowed, or deeply cordate (var. cordifolia, Fern.) base, bright green, glandular-resinous, pubescent and clothed below on the midribs and primary veins and on the petioles with long white hairs when they unfold, at maturity thick BETULACE^ 203 and firm, dull dark green and glandless or rarely glandular on the upper surface, light yellow-green and glabrous or puberulous, with small tufts of pale hairs in the axils of the primary veins and covered with many black glands on the lower sur- face, 2'-3' long, 1^-2' wide, with slender yellow midribs marked, like the remote primary veins, with minute black glands, turning light clear yellow in the autumn; their petioles stout, yellow, glandular, glabrous or pubescent, ^'-f long; stipules ovate, acute, ciliate on the margins, with pale hairs, light green. Flo'wers : stami- nate aments clustered, during the winter f -1^ long, about ^' thick, with ovate, acute scales light brown below the middle, dark red-brown above, becoming 3^'-4' long, and about ^ thick; pistillate aments I'-l^ long, about ^q' thick, with light green lanceolate scales long-pointed and acute or rounded at the apex; styles bright red. Fruit : strobiles cylindrical, glabrous, about 1^' long and ^' thick, hanging on slender stalks; nut oval, about J^' long, much narrower than its thin wing. A tree, usually 60°-70° tall, with a trunk 2°-3° in diameter, becoming in old age, or when crowded by other trees, branchless below and supporting a narrow open head of short pendulous branches, and brauchlets at first light green, slightly viscid, marked by scattered orange-colored oblong lenticels and covered with long pale hairs, dark orange color and glabrous or pubescent during the summer, becoming dull red in their first winter, gradually growing dark orange-brown, lustrous for four h^- 170 or five years and ultimately covered with the white papery bark of older branches. Winter-buds ovate, acute, about ^' long, pubescent below the middle and coated with resinous gum at midsummer, dark chestnut-brown, glabrous and slightly resin- ous during the winter, their inner scales becoming strap-shaped, rounded at the apex, about ^' long and ^ wide. Bark on young trunks and large limbs thin, creamy white, lustrous on the outer surface, bright orange color on the inner, marked by long narrow slightly darker colored raised lenticels, separating into thin papery lay- ers pale orange color when first exposed to the light, becoming on old trunks for a few feet above the ground sometimes ^' thick, dull brown or nearly black, sharply and irregularly furrowed and broken on the surface into thick closely appressed scales. "Wood light, strong, hard, tough, very close-grained, light brown tinged with red, with thick nearly white sapwood; largely used for spools, shoe-lasts, pegs, and in turnery, the manufacture of wood-pulp, and for fuel. The tough resinous durable bark im- pervious to water is used by all the northern Indians in their canoes and for baskets, 204 TREES OF NORTH AMERICA bags, drinking-cups, and other small articles, and often to cover their wigwams in winter. Distribution. Rich wooded slopes and the borders of streams, lakes, and swamps, scattered through forests of other trees; Labrador to the southern shores of Hud- son's Bay and Great Slave Lake, and soutliward to Long Island, New York, north- ern Pennsylvania, central Michigan, central Iowa, northern Nebraska, the Black Hills of Dakota, northern Montana and northwestern Washington; common in the maritime provinces of Canada and north of the Great Lakes, and in northern New England and New York; small and comparatively rare in the coast region of south- ern New England and southward; not common in the Rocky Mountain region; on the highest mountains of New England the var. cordifolia (Fig. 170) is common as a small tree or shrub, and also occurs northward and on the Rocky Mountains. Often planted in the northeastern states as an ornamental tree. 7. Betula occidentalis. Hook. Birch. Leaves ovate, acute, usually rounded, occasionally cordate or rarely cuneate at the broad base, coarsely and generally doubly serrate, with straight or incurved glandular teeth, while young light yellow-green, covered with dark reddish resinous viscid glands, and villous along the midribs and veins, with long white hairs often also in large persistent tufts in the axils of the primary veins, and at maturity thin and firm in texture, marked by the scars of the fallen glands, dull dark green above, pale yellow-green below, and puberulous on both sides of the stout yellow midribs and slender primary veins, 3'-4' long, l^'-2' wide ; their petioles stout, glandular, at first tomentose, ultimately pubescent or puberulous, about |' long ; stipules oblong- obovate, rounded or acute and apiculate at the apex, ciliate on the margins, puber- ulous, glandular-viscid, about \' long, \'-\' wide. Flowers: staminate aments dur- ing the winter about |' long and \' thick, with ovate scales rounded or abruptly narrowed and acute at the apex, puberulous on the outer surface, ciliate on the margins, becoming 3'-4' long and about \' wide ; pistillate aments about V long and yV thick, with acuminate bright green scales. Fruit : strobiles cylindrical, pu- berulous, spreading, 1|^'-1^' long, \'-y thick, on stout peduncles f in length, their scales ciliate on the margins ; nut oval, about ■^' long, and nearly as wide as its wings. BETULACE^ 205 A tree, 100°-120° high, with a trunk 3°-4° iu diameter, comparatively small branches often pendulous on old trees, and pale orange-brown branchlets more or less glandular and coated with long pale hairs when they first appear, becoming bright orange-brown and marked by numerous minute pale lenticels and pubescent or puberulous during their first winter and nearly destitute of glands, and in their second year orange-brown, glabrous, and very lustrous. Winter-buds acute, bright orange-brown, ^-^ long, their light brown inner scales sometimes becoming |^' long. Bark thin, marked by large oblong horizontal raised lenticels, dark orange-brown, very lustrous, separating freely into thin papery layers displaying in falling the bright orange-yellow inner bark. Distribution. Banks of streams and lakes ; southwestern British Columbia and northwestern Washington ; nowhere common and probably of its largest size on the alluvial banks of the lower Fraser River, and on the islands of Puget Sound. 8. Betula Kenaica, Evans. Red Birch. Black Birch. Leaves ovate, acute or acuminate, broadly cuneate or somewhat rounded at the entire base, irregularly coarsely often doubly serrate above, puberulous on the upper c, \j& surface and ciliate on the margins when they unfold, at maturity glabrous, dark dull green above, pale yellow-green below, l^'-2' long, I'-lf ' wide, with slender yel- low midribs and 5 pairs of thin primary veins ; their petioles slender, |'-1' long. Flowers : staminate aments clustered, V long, with ovate acute scales apiculate at the apex, puberulous on the outer surface ; pistillate aments ^'-^' long, about ^q' wide, on slender glandular pubescent peduncles ^'-f long, with acuminate light green strongly reflexed scales; styles bright red. Fruit : strobiles cylindrical, gla- brous, 1' long, their scales ciliate on the margins; nut oval, somewhat narrower than its thin wing. A tree, 30°-40° high, with a trunk 12'-2(y in diameter, wide-spreading branches, stout branchlets marked by numerous small pale lenticels, bright red-brown during 2 or 3 years, gradually becoming darker. Bark thin, more or less furrowed, very dark brown or nearly black near the base of the trunk, grayish white or light red- dish brown and separating into thin layers higher on the stem and on the branches. 206 TREES OF NORTH AMERICA Distribution. Coast of Alaska from Cook Inlet southward to the head of the Lynn Caual. 9. Betula Alaskana, Sarg. White Birch. Leaves rhoniboidal to deltoid-ovate, long-pointed, truncate, rounded or broadlj' cuneate, or on leading shoots occasionally cordate at the entire base, coarsely and often doubly glandular-serrate above, when they unfold yellow-green and covered with resinous glands, lustrous and villous above and slightly pnberulous below, at maturity thin, dark green above, pale and yellow-green below, l^'-3' long, I'-l^' wide, with slender midribs and primary veins pubescent or ultimately glabrous be- low ; their petioles often bright red, somewhat hairy at first, finally glabrous, about 1' long; stipules oblong, gradually narrowed and rounded at the apex, villous partic- ularly toward the margins. Flowers : staminate aments clustered, sessile, 1' long, ^' thick, with ovate acuminate scales pnberulous on the outer surface, bright red, with yellow margins; pistillate aments slender, cylindrical, glandular, 1' long, ^' thick, on stout peduncles nearly ^' long. Fruit : strobiles glabrous, pendulous or spread- ing, I'-l^' longj V~h' thick, their scales ciliate on the margins; nut oval, narrower than its broad wing. A tree, usually 30°-40°, occasionally 80°, high, with a trunk 6'-12' in diameter, slender erect and spreading or pendulous branches, and glabrous bright red-brown branchlets more or less thickly covered during their first year with resinous glands sometimes persistent until the second or third season. Winter-buds ovate, obtuse at the gradually narrowed apex, about ^ long? with light red-brown shining outer scales sometimes ciliate on the margins, and oblong rounded scarious inner scales hardly more than l' long when fully grown. Bark thin, marked by numerous elon- gated dark slightly raised lenticels, dull reddish brown or sometimes nearly white on the outer surface, light red on the inner surface, close and firm, finally separable into thin plate-like scales. Distribution. Valley of the Saskatchewan northwestward to the valley of the Yukon, growing sparingly near the banks of streams in forests of coniferous trees and in large numbers on sunny slopes and hillsides; the common Birch-tree of the Yukon basin. BETULACE^ 207 ++++ Bark dark browns not separable into thin layers. 10. Betula fontinalis, Sarg. Black Birch. Leaves broadly ovate, acute, sharply and often doubly serrate, except at the rounded abruptly wedge-shaped truncate subcordate and often unequal base, and sometimes slightly laciniately lobed, pale green, pilose above, and covered by conspicu- ous resinous glands when they unfold, at maturity thin and firm, dark dull green above, pale yellow-green, rather lustrous and covered by minute glandular dots be- low, l'-2' long, I'-l' wide, with slender pale midribs, remote glandular veins, and rather conspicuous reticulate veinlets, turning dull yellow in the autumn before falling; their petioles stout, puberulous, light yellow, glandular-dotted, flattened on the upper side, often flushed with red, y-^' long; stipules broadly ovate, acute or rounded at the apex, slightly ciliate, bright green soon becoming pale and scarious. Flcwers: staminate aments clustered, ^'-f long and ^^' thick during the winter, with ovate acute light chestnut-brown scales pale and slightly ciliate on the margins, becoming 2'-2^' long, and about \' thick, with apiculate scales; pistillate aments short-stalked, about I' long, with ovate acute green scales; styles bright red. Fruit: strobiles cylindrical, rather obtuse, puberulous or nearly glabrous, I'-l^' long, erect or pendu- lous on slender glandular stalks, \' to nearly |' long; nut ovate or obovate, puberulous at the apex, much narrower than its wing. A tree, occasionally 30° -40° high, with a trunk 12'-18' in diameter, slender spreading gracefully pendulous branches forming an open feathery head, and branch- lets light green and much roughened at first by large lustrous resinous glands persistent until the second season, soon becoming dark orange color, rather bright red-brown during their first winter, dark reddish brown or bronze color and very lustrous the following summer, and marked by conspicuous pale lenticels; more commonly shrubby, with many thin spreading stems forming open clusters, 15°-20° high, often much lower, and frequently crowded in almost impenetrable thickets. Winter-buds oval to ovate, acute, very resinous, chestnut-brown, i' long. Bark about \' thick, dark bronze color, very lustrous, marked by pale brown longitudinal lenticels becoming on old trunks often 6'-8' long and \' wide. "Wood soft and 208 TREES OF NORTH AMERICA strong, light brown, with thick lighter colored sapwood; sometimes used for fuel and fencing. Distribution. Moist soil near the banks of streams in mountain canons; gen- erally distributed, altiiough nowhere very common, from the basin of the upper Fraser and Peace rivers in Britisli Columbia, southward to the valleys of Mt. Shasta and the eastern slopes of the northern Sierra Nevada, California, eastward through Alberta and along the valley of the Saskatchewan, and southward along the Rocky Mountains and the interior ranges of Nevada, Utah, and northern New Mexico, extending eastward in the United States to the Black Hills of Dakota, northwestern Nebraska, and the eastern base of the Rocky Mountains in Colorado. 4. ALNUS, L. Alder. Trees and shrubs, with astringent scaly bark, soft straight-grained wood, naked stipitate winter-buds formed in summer and nearly inclosed by the united stipules of the first leaf, becoming thick, resinous, and dark red. Leaves open and convex in the bud, falling without change of color; stipules of all but the first leaf ovate, acute, and scarious. Flowers vernal or in one species autumnal, in 1-3-flowered cymes in the axils of the peltate short-stalked scales of stalked aments formed in summer or autumn in the axils of the last leaves of the year or of those of minute leafy bracts; staminate aments elongated, pendulous, paniculate, naked and erect during the winter, each staminate flower subtended by 3-5 minute bractlets adnate to the scales of the anient, and composed of a 4-parted calyx, 1-3 or usually 4 stamens inserted on the base of the calyx opposite its lobes, with short simple filaments; pistillate aments ovoid or oblong, erect, stalked, produced in summer in the axils of the leaves of a branch developed from the axils of an upper leaf of the year, and below the staminate inflorescence, inclosed at first in the stipules of the first leaf, emerging in the autumn and naked during the winter, or remaining covered until early spring; pistillate flowers in pairs, each flower subtended by 2-4 minute bractlets adnate to the fleshy scale of the anient becoming at maturity thick and woody, obovate, 3-5-lobed or truncate at the thickened apex, forming an ovoid or subglobose strobile persistent after the opening of its closely imbricated scales; calyx 0; ovary compressed; nut minute, bright chestnut-brown, ovate to oblong, flat, bearing at the apex the remnants of the style, marked at the base by a pale scar, the outer coat of the shell produced into lateral wings often reduced to a narrow membranaceous border. Alnus inhabits swamps, river bottom-lands, and high mountains, and is widely and generally distributed through the northern hemisphere, often forming the most conspicuous feature of vegetation on mountain slopes, ranging at high altitudes southward in the New World through Central America to Colombia, Peru, and Bolivia, and to upper Assam and Japan in the Old World. Of the eighteen or twenty species now recognized nine are North American; of these six attain the size and habit of trees. Of the exotic species, Alnus glutinosa, Gaert., a common European, North African, and Asiatic timber-tree, was introduced many years ago into the northeast- ern states, where it has become locally naturalized. The wood of Alnus is very durable in water, and the astringent bark and strobiles are used in tanning leather and in medicine. Abius is the classical name of the Alder. BETULACEJE 209 CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Flowers opening- in spring- with or after the leaves ; stamens 4 ; pistillate aments inclosed during- the winter ; nut furnished with a broad wing. Leaves ovate, sinuately lobed, lustrous on the lower surface. 1. A. Sitchensis (B, F, G). Flowers opening- in winter or early spring before the unfolding of the leaves ; pistillate aments usually naked during the winter. Wing of the nut broad. Leaves ovate or elliptical, rusty-pubescent on the lower surface ; pistillate aments often inclosed during the winter ; stamens 4. 2. A. Oregoua (B, G). Wing of the nut reduced to a narrow border. Leaves oblong-ovate, glabrous or puberulous on the lower surface ; stamens 4. 3. A. tenuifolia (B, F, G). Stamens usually 2 or 3. Leaves ovate or oval, pale and slightly puberulous on the lower surface. 4. A. rhombifolia (B, F, G). Leaves oblong-lanceolate, acute, pale and sometimes puberulous on the lower sur- face. 5. A. oblongifolia (H). Flowers opening in autumn from aments of the year ; stamens 4 ; wing of the nut reduced to a narrow border. Leaves oblong-ovate or obovate, dark green and lustrous above, pale yellow-green below. 6. A. maritima (A). 1. Flowers opening in spring with or after the leaves : pistillate aments inclosed during the winter. 1. Alnus Sitchensis, Sarg. Alder. Leaves ovate, acute, full and rounded and often unsymmetrical and somewhat oblique, or abruptly narrowed and cuneate at the base, divided into numerous short acute lateral lobes, sharply and doubly serrate, with straight glandular teeth, glandu- lar-viscid as they unfold, at maturity membranaceous, yellow-green on the upper surface, pale and very lustrous on the lower surface, glabrous, or villous along the under side of the stout midribs, with short brown hairs also forming tufts in the axils of the numerous slender primary veins, 3'-6' long, l^'-4' wide ; their petioles stout, 210 TREES OF NORTH AMERICA grooved, abruptly enlarged at the base, |'-f' long; stipules oblong to spatulate, rounded and apiculate at the apex, puberulous, about \' long. Flo"wers: staminate aments in pairs in the axils of the upper leaves sometimes reduced to small bracts, and single in the axil of the leaf next below it, sessile, during the winter about 4' long and ^' thick, with dark red-brown shining puberulous apiculate scales, becoming when the flowers open from spring to midsummer 4' or 5' long, with a puberulous light red rachis and ovate acute apiculate 3-flowered scales; calyx-lobes rounded, shorter than the 4 stamens; pistillate aments in elongated panicles, inclosed during winter in buds formed the previous summer in the axils of the leaves of short lateral brauchlets, long-pedunculate, ^ long, 1' thick. Fruit: strobiles on slender peduncles in elongated sometimes leafy panicles 4'-6' long, oblong, ^'-f long, about ^' thick, their truncate scales thickened at the apex; nut oval, about as wide as its wings. A tree, sometimes 40° high, with a trunk 7'-8' in diameter, short small nearly horizontal branches forming a narrow crown, and slender slightly zigzag branchlets puberulous and very glandular when they first appear, bright orange-brown and lustrous and marked by numerous large pale lenticels during their first season, much roughened during their second year by the elevated crowded leaf-scars, becom- ing light gray. Winter-buds acuminate, dark purple, covered especially toward the apex with close fine pubescence, about ^' long; often a shrub only a few feet tall spreading into broad thickets. Distribution. Northwest coast from the borders of the Arctic Circle to Oregon; common in the valley of the Yukon and eastward through British Columbia to Al- berta, and through Washington and Oregon to the western slopes of the Rocky Moun- tains; at the north with dwarf Willows, forming great thickets; in southeastern Alaska often a tall tree on rich moist bottom-lands near the mouths of mountain streams, or at the upper limits of tree growth a low shrub; very abundant in the valley of the Yukon on the wet banks of streams and often arborescent in habit ; in British Co- lumbia and the United States generally smaller, growing usually only at elevations of more than 3000° above the sea, and often forming thickets on the banks of streams and lakes. 2. Flowers opening in winter or early spring before the unfolding of the leaves j pistil- late aments usually naked during the winter. 2. Alnus Oregona, Nutt. Alder. Leaves ovate to elliptical, acute, abruptly or gradually narrowed and wedge- shaped at the base, crenately lobed, dentate, with minute gland-tipped teeth, and slightly revolute on the margins, covered when they unfold with pale tomentum, at maturity thick dark green and glabrous or pilose, with scattered white hairs above, clothed below with short rusty pubescence, 3'-5' long, If '-3' broad, or on vigorous branches sometimes 8'-10' long, with broad midribs and primary veins green on the upper side and orange-colored on the lower, the primary veins running obliquely to the points of the lobes and connected by conspicuous slightly reticulate cross vein- lets; their petioles orange-colored, nearly terete, slightly grooved, ^'— |' long; stipules ovate, acute, pale green flushed with red, tomentose, ^'-j long. Flo"wers: stami- nate aments in red-stemmed clusters 2'-3' long, during the winter 1^' long, 1' thick, with dark red-brown lustrous closely appressed scales, becoming 4'-6' long and ^' thick, with ovate acute orange-colored glabrous scales; calyx yellow, with ovate rounded lobes rather shorter than the 4 stamens; pistillate aments in short BETULACE^ 211 racemes usually inclosed during the winter in buds formed during the early summer and opening in the early spring, |^'-^' long, about -^^' thick, with dark red acute scales; styles bright red. Fruit: strobiles raised on stout orange-colored peduncles sometimes ^' long, ovate or oblong, i'-l' long, i'-l' wide, with truncate scales much thickened toward the apex ; nut orbicular to obovate, surrounded by a membrana- ceous wing. A tree, usually 40°-50°, occasionally 80° high, with a trunk sometimes 3^° in diameter, slender somewhat pendulous branches forming a narrow pyramidal head, and slender branchlets marked by minute scattered pale lenticels, light green and coated at first with hoary tomentum sometimes persistent until their second year, becoming during the first winter bright red and lustrous and ultimately ashy gray. Winter-buds about ^' long, dark red, covered with pale scurfy pubescence. Bark rarely more than 1' thick, close, roughened by minute wart-like excrescences, pale gray or nearly white, with a thin outer layer, and bright red-brown inner bark. Wood light, soft, brittle, not strong, close-grained, light brown tinged with red, with thick nearly white sap wood; in Washington and Oregon largely used in the manufacture of furniture; by the Indians of Alaska the trunks are hollowed into canoes. Distribution. Southeastern Alaska southward, near the coast to the canons of the Santa Inez Mountains, California; common along the banks of streams, and of its largest size near the shores of Puget Sound. 3. Alnus tenuifolia, Nutt. Alder. Leaves ovate-oblong, acute or acuminate, broad and rounded or cordate, or occa- sionally abruptly narrowed and wedge-shaped at the base, usually acutely laciniately lobed and doubly serrate, when they unfold light green often tinged with red, pilose on the upper surface and coated on the lower with pale tomentum, at maturity thin and firm, dark green and glabrous above, pale yellow-green and glabrous or puberu- lous below, 2'^' long, l^'-2^' wide, with stout orange-colored midribs impressed on the upper side and slender primary veins running to the points of the lobes; their petioles stout, slightly grooved, orange-colored, ^'-V long; stipules ovate, acute, thin, and scarious, ^' long, about ^' wide, covered with pale pubescence. Flowers: stami- 212 TREES OF NORTH AMERICA nate anients 3 or 4 in number in slender-stemmed racemes, nearly sessile or raised on stout peduncles often ^' long, during the winter light purple, |'-1' long and \' thick, becoming l^'-2' long; calyx-lobes rounded, shorter than the 4 stamens; pistillate aments naked during the winter, dark red-brown, nearly ^' long, with acute apiculate loosely imbricated scales, only slightly enlarged when the flowers open. Fruit : strobiles ovate-oblong, ^-^^ long? their scales much thickened, trun- cate and 3-lobed at the apex; nut nearly circular to slightly obovate, surrounded by a thin membranaceous border. A tree, occasionally 30° tall, with a trunk 6'-8' in diameter, small spreading slightly pendulous branches forming a narrow round-topped head, and slender branch- lets marked at first by a few large orange-colored lenticels and coated with fine pale or rusty caducous pubescence, becoming light brown or ashy gray more or less -^-f*»J*v| P'^ 7^ deeply flushed with red in their first winter and ultimately paler; more often shrubby, with several spreading stems, and at the north and at high elevations frequently only 40-50 tall. "Winter -buds \'-^' long, bright red, and puberulous. Bark rarely more than \' thick, bright red-brown, and broken on the surface into small closely ap- pressed scales. Distribution. Banks of streams and mountain canons from Francis Lake in latitude 61° north, to the valley of the lower Fraser River, British Columbia, east- ward along the Saskatchewan to Prince Albert, and southward through the Rocky Mountains to northern New Mexico; on the Sierra Nevada of southern California, and in Lower California; the common Alder of mountain streams in the northern interior region of the continent; very abundant on the eastern slopes of the Cascade Mountains, and on the southern California sierra, forming great thickets at 6000°- 7000° above the sea along the head-waters of the rivers of southern California flowing to the Pacific Ocean; the common Alder of eastern Washington and Oregon, and of Idaho and Montana; very abundant and of its largest size in Colorado and northern New Mexico. 4. Alnus rhombifolia, Nutt. Alder. Leaves ovate or oval or sometimes nearly orbicular, rounded or acute at the apex, especially on vigorous shoots, gradually or abruptly narrowed and wedge-shaped at BETULACE^ 213 the base, finely or sometimes coarsely and occasionally doubly serrate, slightly thick- ened and reflexed on the somewhat undulate margins, when they unfold pale green and covered with deciduous matted white hairs, at maturity dark green and lustrous on the upper suface, frequently marked, especially on the midribs, with minute glan- dular dots, light yellow-green and slightly puberulous below, 2'-3' long, 1^-2' wide, with stout yellow midribs and primary veins; their petioles slender, yellow, hairy, flattened and grooved on the upper side, ^'-f' long; stipules ovate, acute, scarious, puberulous, about \' long. Flo"wers: staminate aments in slender-stemmed pubescent clusters, usually short-stalked, during the summer dark olive-brown and lustrous, I'-l' long and about y^ thick, beginning to lengthen late in the autumn before the leaves fall, fully grown and 4'-6' long and \' thick in January, with dark orange- brown scales, and deciduous in February before the appearance of the new leaves; calyx yellow, 4-lobed, rathe'r shorter than the 2 or occasionally 3 or rarely single stamen; pistillate aments in short pubescent racemes emerging from the bud in December, their scales broadly ovate and rounded. Fruit: strobiles oblong, ^'— j' long, with thin scales slightly thickened and lobed at the apex, fully grown at mid- summer, remaining closed until the trees flower the following year; nut broadly ovate, with a thin acute margin. A tree, frequently 70°-80° high, with a tall straight trunk 2°-3° in diameter, long slender branches pendulous at the ends, forming a wide round-topped open head, and slender branchlets marked by small scattered lenticels, at first light green and coated with pale caducous pubescence, soon becoming dark orange-red and glabrous, and darker during the winter and following summer. Winter-buds nearly ^' long, very slender, dark red, and covered with pale scurfy pubescence. "Wood light, soft, not strong, brittle, close-grained, light brown, with thick lighter colored often nearly white sapwood. Distribution. Banks of streams from northern Idaho to the eastern slope of the Cascade Mountains of Washington and southwestern Oregon and southward over the coast ranges and along the western slopes of the Sierra Nevada to the mountains of southern California; the common Alder of the valleys of central California, and the only species at low altitudes in the southern part of the state. 214 TREES OF NORTH AMERICA 5. Alniis oblongifolia, Toir. Alder. (Alnuif acuminata, Silva, N. Am. ix. 79.) Leaves oblong-lanceolate, acute or rarely obovate and rounded at the apex, grad- ually narrowed and wedge-shaped at the base, sharply and usually doubly serrate, more or less thickly covered, especially early in the season, with black glands, dark yellow-green and glabrous or slightly puberulous above, pale and glabrous or puber- ulous below, especially along the slender yellow midribs and veins, with small tufts of rusty hairs in the axils of the primary veins, 2'-3' long, about 1^' wide; their petioles slender, grooved, pubescent, |' long; stipules ovate-lanceolate, brown and scarious, about \' long. Flowers: staminate aments in short stout-stemmed racemes, during the winter light yellow, ^'-f long and about -^-^' thick, becoming when the flowers open at the end of February before the appearance of the leaves 2'-2^' long, with ovate pointed dark orange-brown scales; calyx 4-lobed; stamens 3 or occa- sionally 2, with pale red anthers soon becoming light yellow; pistillate aments naked during the winter, ^' to nearly i' long, with light brown ovate rounded scales; stigmas bright red. Fruit : strobiles 1-1' long, with thin scales slightly thickened and nearly truncate at the apex; nut broadly ovate, with a narrow membranaceous border. A tree, in the United States rarely more than 20°-30° high, with a trunk some- times 8' in diameter, long slender spreading branches forming an open round-topped head, and slender branchlets slightly puberulous when they first appear, light orange- red and lustrous during their first winter, and marked by small conspicuous pale lenticels, becoming in their second year dark red-brown or gray tinged with red and much roughened by the elevated leaf-scars. Winter-buds acute, bright red, lus- trous, glabrous, ^' long. Bark thin, smooth, light brown tinged with red. Distribution. Banks of streams in canons of the mountains of southern New Mexico and Arizona at elevations of 4000°-6000° above the sea; and on the moun- tains of northern Mexico. BETULACE^ 3. Flowers opening in autumn from aments of the year. 215 6. Alnus maritima, Nutt. Alder. Leaves oblong, ovate, or obovate, acute, acuminate, or rounded at the apex, grad- ually narrowed and wedge-shaped at the base, remotely serrate, with minute in- curved glandular teeth, and somewhat thickened on the slightly undulate margins. when they unfold, light green tinged with red, hairy on the midribs, veins, and petioles, and coated above with pale scurfy pubescence, at maturity dark green, very lustrous, and covered below by minute pale glandular dots, 3'-4' long, l^'-2' wide, with stout yellow midribs and primary veins prominent and glandular on the upper side and slightly puberulous below; their petioles stout, yellow, glandular, flattened and grooved on the upper side, ^'-f' long; stipules oblong, acute, about \ long, dark reddish brown, caducous. Flowers: aments appearing in July ou branches of the year and fully grown in August or early in September; staminate in short scurfy-pubescent glandular-pitted racemes on slender peduncles sometimes ^' in length from the axils of upper leaves; pistillate usually solitary from those of the lower leaves; staminate aments covered at first with ovate acute dark green very lustrous scales slightly ciliate on the margins and furnished at the apex with minute red points, at maturity l^'-2^' long, y to nearly ^' thick, with dark orange- brown scales raised on slender stalks, and bright orange-colored stamens; pistillate aments on stout pubescent peduncles, bright red at the apex and light green below before opening, wath ovate acute scales slightly ciliate on the margins, about |' long when the styles protrude from between the scales, beginning to enlarge the follow- ing spring. Fruit attaining full size at midsummer and then stalked, broadly ovate, rounded and depressed at the base, gradually narrowed to the rather obtuse apex, about I' long and '^ broad, with thin lustrous scales slightly thickened and crenately lobed at the apex, turning dark reddish brown or nearly black and opening late in the autumn and remaining on the branches until after the flowers unfold the follow- ing year; nut oblong-obovate, gradually narrowed and apiculate at the apex, with a thin membranaceous border. A tree, occasionally 30° high, with a tall straight trunk 4'-5' in diameter, small spreading branches forming a narrow round-topped head, slender slightly zigzag 216 TREES OF NORTH AMERICA braiichlets, light green and hairy at first, pale yellow-green, very lustrous, slightly puberulous, marked with occasional small orange-colored lenticels, and glandular, with minute dark glandular dots during their first summer, becoming dull light orange or reddish brown in the winter, and ashy gray often slightly tinged with red the following season; more often shrubby, with numerous slender spreading stems 15°-20° tall. "Winter-buds acute, dark red, coated with pale lustrous scurfy pubes- cence, about ^' long. Bark ^' thick, smooth, light brown or brown tinged with gray. Wood light, soft, close-grained, light brown, with thick hardly distinguish- able sapwood. Distribution. Banks of streams and ponds in southern Delaware and Maryland, and on the banks of the Red River in the Indian Territory. Occasionally cultivated as an ornamental tree in the eastern states and hardy as far north as Massachusetts. X. FAGACEiE. Trees, with watery juice, slender terete branchlets marked by numerous usu- ally pale lenticels, alternate stalked penni veined leaves, and narrow mostly deciduous stipules. Flowers monoecious, the staminate in unisexual heads or aments, composed of a 4— 8-lobed calyx, and 4 or 8 stamens, with free simple filaments and introrse 2-celled anthers, the cells parallel and contiguous, open- ing longitudinally ; the pistillate solitary or clustered, in terminal unisexual or bisexual spikes or heads, subtended by an involucre of more or less united imbricated bracts becoming woody and partly or entirely inclosing the fruit, and composed of a 4— 8-lobed calyx adnate to the 3-7-celled ovary with as many styles as its cells and 1 or 2 pendulous anatropous ovules in each cell. Fruit a nut 1-seeded by abortion, the outer coat cartilaginous, the inner membrana- ceous or bony. Seed filling the cavity of the nut, without albumen ; seed-coat membranaceous ; cotyledons fleshy, including the minute superior radicle ; hilum basal, minute. The six genera of this widely distributed family are represented in the North American silva with the exception of Nothofagus, separated from Fagus to receive the Beech-trees of the southern hemisphere. CONSPECTUS OF THE NORTH AMERICAN GENERA. Staminate flowers fascicled in g-lobose-stalked heads ; the pistillate in 2-4-flowered clusters. Nut triangular. 1. FagUS. Staminate flowers in slender aments. Pistillate flowers in 2-5-flowered clusters below the staminate, in bisexual aments. Fruit inclosed in a prickly burr. Leaves deciduous ; ovary 6-eelled ; fruit maturing in one season ; branchlets length- ening by an upper axillary bud ; bud-scales 4. 2. Castanea. Leaves persistent ; ovary 3-celled ; fruit maturing at the end of the second season ; branchlets lengthening by a terminal bud ; bud-scales numerous. 8. Castanopsis. Fruit inclosed only partly in a shallow cup covered by slender recurved scales united only at the base, free above. 4. Pasania. Pistillate flowers solitary, in few-flowered unisexual spikes. Fruit more or less inclosed in a cup covered by thin or thickened scales, closely ap- pressed or often free toward its rim. 5. Quercus. FAGACE^ 217 1. FAGUS, L. Beech. Trees, with smooth pale bark, hard close-graiued wood, and elongated acute bright chestnut-brown buds, their inner scales accrescent and marking the base of the branchlets with persistent ring-like scars. Leaves convex and plicate along the veins in the bud, thick and firm, deciduous; their petioles short, nearly terete, in falling leaving small elevated semioval leaf-scars, with marginal rows of minute fibro-vascular bundle-scars; stipules linear-lanceolate, infolding the leaf in the bud. Flowers vernal after the unfolding of the leaves; staminate short-pedicellate, in globose many-flowered heads on long drooping bibracteolate stems at the base of the shoots of the year or from the axils of their lowest leaves, and composed of a subcampanulate 4— 8-lobed calyx, the lobes imbricated in aestivation, ovate and rounded, and 8-16 stamens inserted on the base of and longer than the calyx, with slender filaments and oblong green anthers; pistillate in 2-4-flowered stalked clusters in the axils of upper leaves of the year, surrounded by numerous awl-shaped hairy bracts, the outer bright red, longer than the flowers, deciduous, the inner shorter and united below into a 4-lobed involucre becoming at maturity woody, ovoid, thick-walled, and covered by stout recurved prickles, inclosing the usually 3 nuts and ultimately separating into 4 valves; calyx urn-shaped, villous, divided into 4 or 5 linear-lanceolate acute lobes, its 3-angled tube adnate to the 3-celled ovary surmounted by 3 slender recurved pilose styles green and stigmatic toward the apex and longer than the involucre; ovules 2 in each cell. Nut ovate, unequally 3-angled, acute or winged at the angles, concave and longitudinally ridged on the sides, chestnut-brown and lustrous, tipped with the remnants of the styles, marked at the base by a small triangular scar, with a thin shell covered on the inner surface with rufous tomentum. Seed dark chestnut-brown, suspended with the abortive ovules from the tip of the hairy dissepiment of the ovary pushed by the growth of the seed into one of the angles of the nut; cotyledons sweet, oily, plano-convex. Fagus as here limited is confined to the northern hemisphere, with a single American species and four or five Old World species; of these one is widely dis- tributed through Europe to southwestern Asia, and the others are confined to eastern temperate Asia. Of exotic species, the European Fagus sylvatica, L., an important timber-tree, is frequently planted for ornament in the eastern states in several of its forms, especially those with purple leaves, and with pendulous branches. The wood of Fagus is hard and close-grained. The sweet seeds are a favorite food of swine, and yield a valuable oil. Fagus is the classical name of the Beech-tree. 1. Fagus Americana, S-weet. Beech. Leaves remote at the ends of the branches and clustered on short lateral branchlets, oblong-ovate, acuminate, with long slender points, coarsely serrate, with spreading or incurved triangular teeth except at the gradually narrowed wedge- shaped rounded or cordate base, when they unfold pale green and clothed on the lower surface and margins with long pale lustrous silky hairs, at maturity dull dark bluish green above, light yellow-green and very lustrous below, with tufts of long pale hairs in the axils of the veins, 21'-5' long, l'-3' broad, with slender yellow midribs covered above with short pale hairs, and slender primary veins running obliquely to the points of the teeth, turning bright clear yellow in the autumn; their petioles hairy, \'-\' long; stipules ovate-lanceolate on the lower leaves, strap-shaped 218 TREES OF NORTH AMERICA to linear-lanceolate on the upper, brown or often red below the middle, membrana- ceous, lustrous, I'-l^' long. Flowers opening when the leaves are about one third grown; staminate in globose heads 1' in diameter, on slender hairy peduncles about 2' long; pistillate in usually 2-flowered clusters, on short clavate hoary peduncles i'-f long. Fruit: involucres about |' in length, on stout hairy club-shaped peduncles i'_|.' long, fully grown at midsummer, and puberulous, dark orange-green, and cov- ered by slender straight or slightly recurved prickles red above the middle, be- coming at maturity in the autumn light brown, tomentose, with much recurved pubescent prickles, persistent on the branch after opening late into the winter; nut about f ' long. A tree, usually 70°-80° but exceptionally 120° high, sending up from the roots numerous small stems sometimes extending into broad thickets round the parent tree, in the forest with a long comparatively slender stem free of branches for more than half its length, and short branches forming a narrow head, in open situations short-stemmed, with a trunk often 3°-^° in diameter, and numerous limbs spreading gradually and forming a broad compact round-topped head of slender slightly drooping branches clothed with short leafy laterals, and branchlets pale green and coated with long soft caducous hairs when they first appear, olive-green or orange- colored during their first summer and conspicuously marked by oblong bright orange lenticels, gradually growing red, bright reddish brown during their first winter, darker brown in their second season and ultimately ashy gray. Winter- buds puberulous, especially toward the apex, |' to nearly V long, about ^' broad, the inner scales hirsute on the inner surface and along the margins and when fully grown often 1' long, lustrous, brown above the middle, and reddish below. Bark \'~^' thick, with a smooth light steel gray surface. Wood hard, strong, tough, very close-grained, not durable, difficult to season, dark or often light red, with thin nearly white sapwood of 20-30 layers of annual growth; largely used in the manu- facture of chairs, shoe-lasts, plane-stocks, the handles of tools, and for fuel. The sweet nuts are gathered and sold in the markets of Canada and of some of the western and middle states. Distribution. Rich uplands and mountain slopes, often forming nearly pure FAGACEiE 219 forests, and southward on the bottom-lands of streams and the margins of swamps; valley of the Restigouche River, the northern shores of Lake Huron and northern Wisconsin, southward to western Florida, and through southern Illinois and south- eastern jNIissouri to the valley of the Trinity River, Texas; one of the most widely distributed trees of eastern North America; of its largest size in the forests on intervale lands in the basin of the lower Ohio River, and on the slopes of the southern Alleghany Mountains. Often planted in the northern states as an ornamental tree. 2. CASTANEA, Adans. Chestnut. Trees or shrubs, with astringent juice, furrowed bark, porous brittle wood, terete branchlets without terminal buds, axillary buds covered by 2 pairs of slightly im- bricated scales, the outer lateral, the others accrescent, becoming oblong-ovate and acute and marking the base of the branch with narrow ring-like scars, stout perpen- dicular tap-roots; producing when cut numerous stout shoots from the stump. Leaves convolute in the bud, ovate, acute, coarsely serrate, except at the base, with thin veins running to the points of the slender glandular teeth, deciduous; their petioles leav- ing in falling small elevated semioval leaf-scars marked by an irregular marginal row of minute fibro-vascular bundle-scars; stipules ovate to linear-lanceolate, acute, scarious, infolding the leaf in the bud, caducous. Flowers moncecious, opening in early summer, unisexual, strong-smelling; the staminate, in 3-7-flowered cymes, in the axils of minute ovate bracts, in elongated simple deciduous aments first appearing with the unfolding of the leaves from the inner scales of the terminal bud and from the axils of the lower leaves of tlie year, composed of a pale straw-colored slightly puberulous calyx deeply divided into 6 ovate rounded segments imbricated in the bud, and 10-20 stamens inserted on the slightly thickened torus, with filiform filaments incurved in the bud, becoming elongated and exserted, and ovoid or globose pale yellow anthers; the pistillate scattered or spicate at the base of the shorter persist- ent androgynous aments from the axils of later leaves, sessile, 2 or 3 together or soli- tary within a short-stemmed or sessile involucre of closely imbricated oblong acute bright green bracts scurfy-pubescent or tomentose below the middle, subtended by a bract and 2 lateral bractlets, each flower composed of an urn-shaped calyx, with a short limb divided into 6 obtuse lobes, minute sterile stamens shorter than the calyx-lobes, an ovary 6-celled after fecundation, with 6 linear spreading white styles hairy below the middle and tipped by minute acute stigmas, and 2 ovules in each cell, attached on its inner angle, descending, semianatropous. Fruit maturing in one season, its involucre inclosing 1-3 nuts, globose or oblong, pubescent or tomentose and densely spiny on the outer surface, with elongated ridged bright green ultimately brown branched spines fascicled between the deciduous scales, coated on the inner surface with lustrous pubescence, splitting at maturity into 2-4 valves; nut ovate, acute, crowned by the remnants of the style, bright chestnut-brown and lustrous, tomentose or pubescent at the apex, cylindrical, or when more than 1 flattened, marked at the broad base by a large conspicuous pale circular or oval thickened scar, its shell lined with rufous or hoary tomentum. Seed usually solitary by abor- tion, dark chestnut-brown, marked at the apex by the abortive ovules, with thick and fleshy more or less undulate ruminate sweet farinaceous cotyledons. Castanea is confined to the northern hemisphere, and is widely distributed through eastern North America, southern Europe, northern Africa, western Asia, and central 220 TREES OF NORTH AMERICA and northern China and Japan. Four species are distinguished. Of the exotic species, the European Castanea Castanea, Karsten, a tree frequently cultivated in Europe and Japan for its large sweet seeds which are an important article of food in the countries of southern Europe and in eastern Asia, has been occasionally planted in the middle states. Of the American species two are trees, and one, Castanea alnifolia, Nutt., is a low shrub. Castanea produces coarse-grained wood very durable in contact with the soil, and rich in tannin, Castanea is the classical name of the Chestnut-tree. • CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Leaves oblong-lanceolate, long-pointed, green and glabrous on both surfaces ; nuts 2 or 3 in each involucre, flattened. 1. C. dentata (A, C). Leaves oblong, acute, silvery white and pubescent on the lower surface ; nut solitary, cylin- drical. 2. C. pumila (A, C). 1. Castanea dentata, Borkh. Chestnut. Leaves oblong-lanceolate, acute and long-pointed at the apex, gradually narrowed and wedge-shaped at the base, when they unfold puberulous on the upper surface and clothed on the lower with fine cobweb-like tomentum, at maturity thin, glabrous. dark dull yellow-green above, pale yellow-green below, 6'-8' long, about 2' wide, with pale yellow midribs and primary veins, turning bright clear yellow late in the autumn; their petioles stout, slightly angled, puberulous, \' long, often flushed with red ; stipules ovate-lanceolate, acute, yellow-green, puberulous, about \' long. Floor- ers : staminate aments about y long when they first appear, green below the middle and red above, becoming when fully grown 6'-8' long, with stout green puberulous stems covered from the base to the apex with crowded flower-clusters; androgynous aments, slender, puberulous, 2^'-5' long, with 2 or 3 irregularly scattered involucres of pistillate flowers near their base. Fruit: involucres attaining their full size by the middle of August, 2'-2\' in diameter, sometimes a little longer than broad, some- what flattened at the apex, glabrous and covered on the outer surface with crowded fascicles of long slender glabrous much-branched spines, opening with the first frost and gradually shedding their nuts; nuts usually much compressed, ^-V wide, FAGACE^ 221 usually rather broader than long, coated at the ap3x or nearly to the middle with thick pale tomentum, the interior of the shell lined with thick rufous tomentura; seed very sweet. A tree, occasionally 100^ high, with a tall straight columnar trunk 3°-4° in diame- ter, or often when uncrowded by other trees with a short trunk occasionally 10°-12° in diameter, and usually divided not far above the ground into 3 or 4 stout horizon- tal limbs forming a broad low round-topped head of slightly pendulous branches frequently 100° across, and branchlets at first light yellow-green sometimes tinged with red, somewhat angled, lustrous, slightly puberulous, soon becoming glabrous and olive-green tinged with yellow or brown tinged with green and ultimately dark brown. Winter-buds ovate, acute, about \' long, with thin dark chestnut-brown scales scarious on the margins. Bark from 1-2' thick, dark brown and divided by shallow irregular often interrupted fissures into broad flat ridges separating on the surface into small thin closely appressed scales. Wood light, soft, not strong, liable to check and warp in drying, easily split, reddish brown, with thin lighter colored sapwood of 3 or 4 layers of annual grow^th; largely used in the manufacture of cheap furniture and in the interior finish of houses, for railway-ties, fence-posts, and rails. The nuts, which are superior to those of the Old World Chestnut in sweetness and flavor, are gathered in great quantities in the forest and sold in the markets of the eastern cities. Distribution. Southern Maine to the valley of the Winooski River, Vermont, and southern Ontario, along the southern shores of Lake Ontario to southern Michi- gan, southward to Delaware and southeastern Indiana, and along the Alleghany Mountains to central Alabama and Mississippi, and to central Kentucky and Ten- nessee; very common on the glacial drift of the northern states and, except at the north, mostly confined to the Appalachian hills; attaining its greatest size in western North Carolina and eastern Tennessee. Occasionally planted in the eastern states as an ornamental and timber tree, and for its nuts, of which several varieties are now recognized. 2. Castanea pumila. Mill. Chinquapin. Leaves oblong-oval to oblong-obovate, acute, coarsely serrate, with slender rigid spreading or incurved teeth, gradually narrowed and usually unequal and rounded or wedge-shaped at the base, when they unfold tinged with red and coated above with pale caducous tomentum and below with thick snowy white tomentum, at ma- turity rather thick and firm in texture, bright yellow-green on the upper surface, hoary or silvery-pubescent on the lower, 3'-5' long, l-j'-2' wide, turning dull yel- low in the autumn; their petioles stout, pubescent, flattened on the upper side, j—^' long; stipules light yellow-green, pubescent, those of the 2 lowest leaves broad, ovate, acute, covered at the apex by rufous tomentum, on later leaves ovate-lanceo- late, often oblique and acute, becoming linear at the end of the branch. Flo"wers : staminate aments -|' long when they first appear, pubescent, green below, bright red at the apex, becoming when fully grown 4'-6' long, with stout hoary tomentose stems and crowded or scattered flower-clusters; androgynous aments silvery tomentose, 3'-4' long; involucres l-flowered, scattered at the base of the ament or often spicate and covering its lower half, sessile or short-stalked. Fruit : involucres I'-l^ in di- ameter, with thin walls coated on the inner surface with pale silky hairs, tomentose and covered on the outer surface with crowded fascicles of slender spines tomentose toward the base, or with scattered clusters of stouter spines; nut ovate, cylindrical, 222 TREES OF NORTH AMERICA rounded at the slightly narrowed base, gradually narrowed and pointed at the apex, more or less coated with silvery white pubescence, dark chestnut-brown, very lus- trous, I'-l' long, y broad, with a thin shell lined with a coat of lustrous hoary tomentum, and a sweet seed. A round-topped tree, rarely 50° high, with a short straight trunk 2°-3° in diame- ter, slender spreading branches, and branchlets coated at first with pale tomentum becoming during their first winter pubescent or remaining tomentose at the apex, f^Kk. 'S3 bright red-brown, glabrous, lustrous, olive-green or orange-brown during their second season and ultimately darker; usually a shrub spreading into broad thickets by prolific stolons, with numerous intricately branched stems often only 4° or 5° tall. Winter-buds ovate, or oval, about ^' long, clothed when they first appear in summer with thick hoary tomentum, becoming red during the winter and scurfy- pubescent. Bark ^'-1' thick, light brown tinged with red, slightly furrowed and broken on the surface into loose plate-like scales. Wood light, hard, strong, coarse-grained, dark brown, with thin hardly distinguishable sapwood of 3 or 4 layers of annual growth; used for fence-posts, rails, and railway-ties. The sweet nuts are sold in the markets of the western and southern states. Distribution. Dry sandy ridges, rich hillsides and the borders of swamps; southern Pennsylvania to northern Florida and the valley of the Neches River, Texas; usually shrubby in the region east of the Alleghany Mountains ; arborescent west of the Mississippi Kiver; most abundant and of its largest size in southern Arkansas and eastern Texas. 3. CASTANOPSIS, Spach. Trees, with scaly bark, astringent wood, and winter-buds covered by numerous imbricated scales. Leaves convolute in the bud, 5-ranked, coriaceous, entire or dentate, penniveined, persistent; stipules obovate or lanceolate, scarious, mostly caducous. Flowers in 3-flowered cymes, or the pistillate rarely solitary or in pairs, in the axils of minute bracts, on slender erect aments from the axils of leaves of the year; the staminate on usually elongated and panicled aments, and composed of a campanulate 5 or6-lobed or parted calyx, the lobes imbricated in the bud, usually 10 or 12 stamens inserted on the slightly thickened torus, with elongated exserted filiform FAGACE^ 223 filaments and oblong anthers, and a minute hirsute rudimentary ovary; the pistillate on shorter simple or panicled aments or scattered at the base of the staminate inflorescence, the cymes urrounded by an involucre of imbricated scales; calyx urn-shaped, the short limb divided into 6 obtuse lobes; abortive stamens inserted on the limb of the calyx and opposite its lobes; ovary sessile on the thin disk, 3-celled after fecundation, with 3 spreading styles terminating in minute stigmas, and 2 ovules in each cell attached to its interior angle. Fruit maturing at the end of the second season, its involucre inclosing 1-3 nuts, ovoid or globose, sometimes more or less depressed, rarely obscurely angled, dehiscent or indehiscent, covered by stout spines, tuberculate or marked by interrupted vertical ridges; nut more or less angled by mutual pressure when more than 1, often pilose, crowned with the remnants of the style, marked at the base by a large conspicuous circular depressed scar, the thick shell tomentose on the inner surface. Seed usually solitary by abortion, bearing at the apex the abortive ovules; cotyledons plano-convex, fleshy, farinaceous. Castanopsis inhabits California with one species, and southeastern Asia where it is distributed with about twenty-five species from southern China to the Malay Archi- pelago and the eastern Himalayas. Castanopsis, from Kacrrava and o-^is, in allusion to its resemblance to the Chestnut- tree. 1. Castanopsis chrysophylla, A. DC. Chinquapin. Golden-leaved Chestnut. Leaves lanceolate or oblong, gradually narrowed at the ends or sometimes ab- ruptly contracted at the apex into short broad points, entire, with slightly thickened revolute margins, when they unfold thin, coated below with golden yellow persistent scales and above with scattered white scales, at maturity thick and coriaceous, dark green and lustrous above, 2'-6' long, ^' to nearly 2' broad, with stout midribs raised and rounded on the upper side, turning yellow at maturity and falling gradually at the end of their second or in their third year; their petioles \'-y long; stipules ovate, rounded or acute at the apex, brown and scarious, puberulous, \'-\' long. Flovrers appearing irregularly from June until February in the axils of broadly ovate apiculate pubescent bracts on staminate and androgynous scurfy stout-stemmed 224 TRKES OF NORTH AMERICA aments 2'-2^' lonj; and crowded at the ends of tlie bnuiclies; calyx of the stanii- nate Hower coated on the onter snrface with hoary tonientnni, divided into hroiully ovate ronnded h)bes nmcli shorter than tlie slender stamens; calyx of the pistillate flower oblonj^-canipanulate, free from the ovary, clothed with hoary tomentnm, divided at the apex into short ronnded lobes, rather shorter than the minnte abortive stamens, with red anthers; ovary conical, hirsnte, with elongated slightly spreading thick pale stigmas. Fruit : involucres globose, dehiscent, irregularly 4-valved, sessile, solitary or clustered, tomentose and covered on the outer surface by long stout or slender rigid spines I'-l^' in diameter, containing 1 or occasionally 2 nuts; nuts broadly ovate, acute, obtusely 3-angled, light yellow-brown and lustrous; seeds dark purple-red, sweet and edible. A tree, 100°-150° high, with a massive trunk 5°-10° in diameter, frequently free of branches for 80°, stout spreading branches forming a broad compact round- topped or conical head, and rigid branchlets coated when they first appear with bright golden-yellow scurfy scales, dark reddish brown and slightly scurfy during their first winter, and gradually growing darker in their second season; generally much smaller and sometimes, especially at high elevations and southward, reduced to a low shrub, with slender diverging stems. Winter-buds fully grown at mid- summer, usually crowded near the end of the branch, ovate or subglobose, with broadly ovate apiculate thin and papery light brown scales slightly puberulous on the back, ciliate on the scarious often reflexed margins, the terminal bud about ^ long and broad and rather larger than the often stipitate axillary buds. Bark l'-2' thick and deeply divided into rounded ridges 2'-3' broad, broken into thick plate- like scales, dark red-brown on the surface and bright red internally. Wood light, soft, close-grained, not strong, light brown tinged with red, with thin lighter colored sapwood of 50-60 layers of anntial growth ; occasionally used in the manufacture of ploughs and other agricultural implements. Distribution. Valley of the Columbia River, Oregon, southward along the west- ern slopes of the Cascade Mountains, and in California along the western slopes of the Sierra Nevada and through the coast ranges to the elevated valleys of the San Jacinto Mountains, sometimes ascending to elevations of 4000° above the sea; usu- ally shrubby at high elevations and on the California coast ranges south of the Bay of San Francisco; of its largest size in the humid coast valleys of northern California. Occasionally cultivated in the gardens of temperate Europe. 4. PASANIA, Orst. Trees, with astringent properties, stellate pubescence, deeply furrowed scaly bark, hard close-grained brittle wood, stout branchlets, and winter-buds covered by few erect or spreading foliaceous scales. Leaves convolute in the bud, petiolate, persist- ent, entire or dentate, with stout midribs, primary veins running obliquely to the points of the teeth, or on entire leaves forked and united near the margins, and retic- ulate veinlets; stipules oblong-obovate to linear- lanceolate, those of the upper leaves persistent and surrounding the buds during the winter. Flowers in erect unisexual and in bisexual tomentose aments from the axils of leaves of the year, from the inner scales of the terminal bud or from separate buds in the axils of leaves of the previous year; staminate in 3-fiowered clusters in the axils of ovate rounded bracts, the lateral flowers subtended by similar but smaller bracts, each flower composed of a 5-lobed FAGACE^ 225 tomentose calyx, with nearly triangular acute lobes, 10 stamens, with slender elon- gated filaments and small oblong or emarginate anthers, and an acute abortive hairy ovary; pistillate scattered at the base of the upper aments below the staminate flowers, solitary, in the axils of acute bracts, furnished with minute lateral bractlets, and composed of a G-lobed ovate calyx, with rounded lobes, inclosed in the tomen- tose involucral scales, 6 stamens, with abortive anthers, an ovate-oblong 3-celled ovary, 3 elongated spreading light green styles thickened and stigmatic at the apex, and 2 anatropous ovules in each cell. Fruit an oval or ovate nut maturing at the end of the second season, 1-seeded by abortion, surrounded at the base by the accrescent woody cupular involucre of the flower, marked at the base by a large pale circular scar, the thick shell tomentose on the inner surface. Seed red-brown, filling the cavity of the nut, bearing at the apex the abortive ovules; cotyledons thick and fleshy, yellow and bitter. Pasania is intermediate between the Oaks and the Chestnuts, and, with the excep- tion of one California species, is confined to southeastern Asia, where it is distributed with many species from southern Japan and southern China through the Malay Peninsula to the Indian Archipelago. Pasania is from the vernacular name of one of the Java species. 1. Pasania densiflora, Orst. Tan Bark Oak. Chestnut Oak. (^Quercus densiflora, Silva N. Am. viii. 183.) Leaves oblong or oblong-obovate, rounded or acute or rarely cordate at the base, occasionally rounded at the apex, repand-dentate, with acute callous teeth, or entire, with thickened revolute margins, coated when they unfold with fulvous tomentum and glandular on the margins, with dark caducous glands, at maturity pale green, lustrous and glabrous or covered with scattered stellate pubescence on the upper surface, rusty-tomentose on the lower, ultimately becoming glabrous above and glabrate and bluish white below, 3'-5'long, |'-3' wide, with midribs raised and rounded on the upper side, thin or thick primary veins and fine conspicuous reticulate veinlets, persistent until the end of their third or fourth years; their petioles stout, rigid, tomentose, ^'-f ' long; stipules brown and scarious, hirsute on the outer surface. Flo^wers in early spring and frequently also irregularly during 226 TREES OF NORTH AMERICA the autumn; aments stout-steramed, 3'-4' long; staminate flowers crowded, hoary- tomentose in the bud, their bracts toinentose. Fruit solitary or often in pairs, on a stout tomentose peduncle ^'-1' long; nut full and rounded at the base, gradually narrowed and acute or rounded at the apex, scurfy-pubescent when fully grown, becoming light yellow-brown, glabrous and lustrous at maturity, |-'-l' long, ^'-1' broad, its cup sliallow, tomentose, with lustrous red-brown hairs on the inner surface, and covered by long linear rigid spreading or recurved light brown scales coated with stellate hairs, frequently tipped, especially while young, with dark red glands and often tomentose near the base of the cup. A tree, usually 70°-80° but sometimes nearly 100° high, with a trunk 3°-6° in diameter, stout branches ascending in tbe forest and forming a narrow spire-like head, or in open positions spreading horizontally and forming a broad dense sym- metrical round-topped crown, and branchlets coated at first with a thick fulvous tomentiim of stellate hairs often persistent until the second or third year, becoming dark reddish brown and frequently covered with a glaucous bloom ; or sometimes reduced to a shrub, with slender stems only a few feet high (var. echinoides, Sarg.). Winter-buds ovate, obtuse, \'-y long, often surrounded by the persistent stipules of the upper leaves, with tomentose loosely imbricated scales, those of the outer ranks linear-lanceolate, increasing in width toward the interior of the bud, those of the inner ranks ovate or obovate and rounded at the apex. Bark f'-l^ thick, deeply divided by narrow fissures into broad rounded ridges broken into nearly square plates covered by closely appressed light red-brown scales. "Wood hard, strong, close-grained, brittle, reddish brown, with thick darker brown sap wood; largely used as fuel. The bark is exceedingly rich in tannin and is largely used for tanning leather. . Distribution. Valley of the Umpqua River, Oregon, southward through the coast ranges to the Santa Inez Mountains, California, and along the western slope of the Sierra Nevada up to elevations of 4000° above the sea to Mariposa County; very abundant in the humid coast region north of San Francisco Bay and of its largest size in the Redwood forest of Napa and Mendocino counties; southward and on the Sierras less abundant and of smaller size. 5. QUERCUS, L. Oak. Trees or shrubs, with astringent properties, stellate pubescence, scaly or dark and furrowed bark, hard and close-grained or porous brittle wood, slender branchlets marked by pale lenticels and more or less prominently 5-angled. Winter-buds clus- tered at the ends of the branchlets, with numerous membranaceous chestnut-brown slightly accrescent caducous scales closely imbricated in 5 ranks, in falling marking the base of the branchlet with ring-like scars. Leaves 5-ranked, lobed, dentate or entire, often variable on the same branch, membranaceous or coriaceous, the primary veins prominent and extending to the margins or united within them and connected by more or less reticulate veinlets, deciduous in the autumn or persistent until spring or until their third or fourth year; their petioles in falling leaving slightly elevated semiorbicular more or less obcordate leaf-scars broader than high, marked by the ends of numerous scattered fibro- vascular bundles ; stipules obovate to lanceo- late, scarious, caducous, or those of upper leaves occasionally persistent throtigh the season. Flowers vernal with or after the unfolding of the leaves; staminate solitary, in the axils of lanceolate acute caducous bracts, or without bracts, in graceful pen- FAGACE^ 227 dulous clustered aments, from separate or leafy buds iu the axils of leaves of the previous year, or from the axils of the inner scales of the terminal bud or from those of the leaves of the year; calyx campanulate, lobed or divided to the base into 4-7, usually G, membranaceous lobes; stamens 4-6, rarely 2, or 10-12, inserted on the slightly thickened torus, with free filiform exserted filaments and ovate-oblong or subglobose glabrous or rarely hairy 2-celled usually yellow anthers; pistillate soli- tary, subtended by a caducous bract and 2 bractlets, in short or elongated few- flowered spikes from the axils of leaves of the year; calyx urn-shaped, with a short campanulate 6-lobed limb, the tube adnate to the incompletely 3 or rarely 4 or o-celled ovary inclosed more or less completely by an accrescent involucre of imbri- cated scales, becoming the cup of the fruit; styles as many as the cells of the ovary, short or elongated, erect or incurved, dilated above, stigmatic on the inner face or at the apex only, generally persistent on the fruit; ovules anatropous or semianatropous, 2 in each cell. Fruit a nut {acorn) maturing in one or in two years, ovoid, globose, or turbinate, short-pointed at the apex, 1-seeded by abortion, marked at the base by a large conspicuous circular scar, with a thick shell, glabrous or coated on the inner surface with pale tomentum, more or less surrounded or inclosed in the accrescent cupular involucre of the flower (cup), its scales thin or thickened, loosely or closely imbricated. Seed marked at the base or at the apex or rarely on the side by the abortive ovules; cotyledons thick and fleshy, usually plano-convex and entire. Quercus inhabits the temperate regions of the northern hemisphere and high altitudes within the tropics, ranging in the New World southward to the mountains of Colombia and in the Old World to the Indian Archipelago. Two hundred and seventy-five species have been described; fifty-two are North American; of these five are shrubs. Of exotic species, the European Quercus pedunculata, Ehrh., and Quercus sessilijiora, Salisb., have been frequently cultivated as ornamental trees iu the eastern United States, where, however, they are usually short-lived and unsatis- factory. Many of the species are important timber-trees; their bark is often rich in tannin and is used in tanning leather, and all produce wood valuable for fuel and in the manufacture of charcoal. Quercus is the classical name of the Oak-tree. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. 1. Fruit maturing at the end of the second season {except 22) ; shell of the acorn silky- tomentose on the inner surface ; leaves or their lobes bristle-tipped. Black Oaks. *Stamens usually 4-6 ; styles elong-ated, finally recurved ; abortive ovules basal. -•-Leaves deciduous in their first autumn or winter. •M-Leaves pinnately lobed, convolute iu the bud. Leaves green on both sides. Cup saucer-shaped ; leaves g-labrous, with exception of axillary tufts of hairs ; winter-buds glabrous or puberulous. Cup broad and thick. Leaves dull green above, pale yellow-green below, oblong-obovate to oblong, the lobes tapering gradually from broad bases and acute and usually dentate at the apex. 1. Q. rubra (A). Cup thin and narrow ; leaves lustrous. Leaves obovate, sinuate-lobed by deep wide sinuses, the spreading lobes acute or obtuse, usually coarsely repand-dentate. 2. Q. palustris (A, C). Leaves oval or obovate, glabrous, sinuately lobed, their lobes usually acute and entire. 3. Q. Georgiana (C). 228 TREES OF NORTH AMERICA Cup turbinate or hemispherical {sometimes saucer-shaped in C), Scales of the cup small, closely appressed ; leaves lustrous, glabrous with the exception of axillary tufts of hairs ; winter-buds glabrous or puberu- lous. Leaves oval to obovate-orbicular, deeply 5-7-lobed, dark green and lustrous on the upper surface. 4. Q. ellipsoidalis (A). Leaves obovate, truncate or abruptly wedge-shaped at the base, deeply lobed, with broad rounded sinuses, tte lobes sinuate-dentate at the usually broad apex. 5. Q. Texana (A, C). Leaves oblong or obovate, deeply lobed, with broad rounded sinuses, the slender lobes coarsely repand-dentate toward the apex, glabrous. G. Q. coccinea (A). Scales of the cup large, more or less loosely imbricated, forming a free margin ; leaves usually pubescent below. Winter-buds tomentose ; leaves ovate or obovate, slightly or deeply lobed, with broad or narrow nearly entire or dentate lobes, more or less pubescent below. 7. Q. velutina (A, C). Winter-buds glabrous or puberulous. Leaves oblong or obovate, deeply lobed, the lobes tapering, acute, or broad and obovate at the apex, repand-dentate or entire, gla- brous or pubescent below. 8. Q. Californica (G). Leaves oblong-obovate or triangular, distinctly cuneate, deeply lobed, with acute spreading often falcate lobes, glabrous or rusty-pubes- cent below, short-stalked. 9. Q. Catesbaei (C). Leaves whitish or grayish tomentulose below. Leaves mostly acutely 5-lobed, obovate, with short broad lobes. 10. Q. nana (A). Leaves with elongated mostly falcate lobes. Leaves oblong or obovate, fulvous or pale pubescent below, the lobes usually elongated and falcate, or broad and 3-lobed at the apex. 11. Q. digit ata (A, C). Leaves oval to oblong, deeply 5-11-lobed, the lobes acuminate, mostly falcate, white -tomentose below. 12. Q. pagodaefolia (A, C). Leaves widening upward, often abruptly dilated at the broad sinuate or obscurely 3-5-lobed apex. Leaves broadly obovate, rusty-pubescent below. 1.3. Q. Marilandica (A, C). Leaves obovate-spatulate or narrowly wedgershaped, glabrous. 14. Q. nigra (C). I I I I Leaves lanceolate to oblong or lanceolate-obovate, usually entire, involute in the bud. Willow Oaks. Leaves glabrous. Leaves lanceolate, narrowed and acute at the ends. 15. Q. Phellos (A, C). Leaves oblong to oblong-obovate, dark green and lustrous above, somewhat paler below. 10. Q. laurifolia (C). Leaves tomentulose or pubescent below, oblong-lanceolate to oblong-obovate. Leaves pale blue-green, coated below with hoary tomentum. 17. Q. brevifolia (C). Leaves dark green and lustrous above, pubescent below. 18. Q. imbricaria (A). -•• -i-Leaves persistent until the appearance of those of the following year, revolute in the bud {involute in 21). Leaves lanceolate, oblong-lanceolate or elliptical, entire or spinose- FAGACE^ 229 toothed toward the apex, covered below with pale or fulvous toraen- tum. 19. Q. hypoleuca (E, H). Leaves oblong-lanceolate, entire or sinuate-dentate, dark green and lustrous. 20. Q. Wislizeni (G). Leaves oval to oblong-obovate, rounded or acute at the apex, mostly entire, with thickened revolute margins, involute in the bud. 21. Q. myrtifolia (C). Leaves oval, orbicular to oblong, entire or sinuately spinose-toothed, convex on the upper surface ; fruit maturing at the end of the first season. 22. Q. agrifolia (G). **Stamen3 usually 6-8 ; styles dilated j abortive ovules basal or lateral ; leaves persistent, involute in the bud. Leaves oblong, acute or cuspidate, entire or dentate or sinuate-toothed, fulvous- tomentose and ultimately pale on the lower surface. 23. Q. chry solepis (G, H). Leaves oblong-lanceolate, acute, crenate-dentate or entire, conspicuously veined, pubescent or tomentose below. 24. Q. tomentella (G). 2. Fruit maturing at the end of the first season ; shell of the acorn glabrous on the inner surface {hoary-tomentose in -^7) ; abortive ovules basal ; stamens 6-8 ; styles dilated. White Oaks. *Leaves and their lobes usually without bristle-tips, except on vigorous shoots, yellow- green, deciduous in their first autumn or winter, convolute in the bud {conduplicate in 25 and 23). -t-Leaves lyrate or sinuate-pinnatifid, rarely nearly entire. Leaves glabrous, obovate-obloug, obliquely 3-9-lobed or pinnatifid, pale below, conduplicate in the bud. 25. Q. alba (A, C). Leaves pubescent beneath. Leaves oblong-obovate, deeply lobed, usually stellate-pubescent above, pale below, conduplicate in the bud. 26. Q. lobata (G) Leaves obovate or oblong, coarsely pinnatifid-lobed. 27. Q. Garryana (B, G) Leaves obovate or oblong-lanceolate, lobed or pinnatifid. 28. Q. Gambelii (F) Leaves oblong-obovate, usually 5-lobed, stellate-pubescent above ; anthers hir sute. 29. Q. minor (A, C) Leaves entire or slightly sinuate-lobed toward the apex, oblong or oblong' obovate ; anthers hirsute. 30. Q. Chapmani (C) Leaves white-tomentulose beneath. Leaves obovate or oblong, lyrately pinnatifid or deeply sinuate-lobed or divided cup fringed by the awned scales. 31. Q. macrocarpa (A, C) Leaves obovate-oblong, deeply 5-9-lobed or pinnatifid ; nut often nearly inclosed in its Clip. 32. Q. lyrata (C) -t--*- Leaves coarsely sinuate-toothed. Chestnut Oaks. Fruits on peduncles much longer than the petioles ; leaves obovate or oblong- obovate, generally sinuate-dentate or lobed, pubescent, and usually hoary on the lower surface. 33. Q. platanoides (A, C). Fruits on peduncles about as long or shorter than the petioles. Leaves obovate or oblong-obovate, wedge-shaped or rounded at the broad or narrow base, tomentose or pubescent, and often silvery white below. 34. Q. Michauxii (A, C). Leaves obovate or oblong to lanceolate, acuminate, with rounded or acute teeth. 35. Q. Prinus (A). Fruits sessile or nearly so ; leaves oblong to lanceolate, acute or acuminate, or broadly obovate, puberulous and pale, often silvery white on the lower surface. 36. Q. acuminata (A, C). 230 TREES OF NORTH AMERICA **Leaves often dentate or spinesoent, or sometimes entire. -♦•Leaves deciduous in their first autumn or winter, blue-green, convolute in the bud. Leaves obovate or oblong-, undulate-lobed or entire, pale, and often silvery white and pubescent on the lower surface. 87. Q. breviloba (C). Leaves oblong-, sinuate-dentate, entire, pinnatifid-lobed or spinesoent, pubescent below. 38. Q. undulata (F, H). Leaves oblong-, lobed, spinescent or entire, pubescent below. 39. Q. Douglasii (G). -t--i-Leaves mostly persistent until the appearance of those of the following- spring, revolute in the bud {convolute in 4^), Leaves blue-green. Fruit solitary or in pairs. Cup hemispherical or turbinate, inclosing about one third of the acorn, raised on a short peduncle or nearly sessile. Leaves oblong-obovate, usually obtuse and rounded at the apex, entire or remotely dentate. 40. Q. Engelmanni (G). Leaves ovate, oval or obovate, usually cordate, entire or remotely spinulose-dentate. 41. Q. oblongifolia (E, H). Leaves oblong'-lanceolate or broadly obovate, cordate or rounded at the base, spinose-dentate, pubescent and conspicuously reticulate- venulose on the lower surface. 42. Q. Arizonica (H). Cup saucer-shaped, inclosing- about one fourth of the acorn, sessile ; leaves ovate or ovate-oblong or oval, entire or remotely spinose-dentate. 43. Q. Toumeyi (H). Fruits several on a long- and slender peduncle. Leaves broadly obovate, cordate, usually rounded and obtuse at the apex, repandly spinose-dentate, coarsely reticulate-venulose. 44. Q. reticulata (H). Leaves dark green. Leaves oblong or obovate, entire, sinuate-toothed or lobed, pubescent and often pale below, convolute in the bud. 45. Q. dumosa (G). Leaves oblong, elliptical or obovate, entire or remotely spinose-dentate, pale or silvery white on the lower surface ; anthers hirsute. 46. Q. Virginiana (C). Leaves oblong-lanceolate, entire or repand-serrate, coriaceous ; inner sur- face of the shell of the acorn hoary-tomentose. 47. Q. Emoryi (F, H). 1. Fruit maturing at the end of the second season (except 22); shell of the acorn tomen- tose on the inner surface ; leaves or their lobes bristle-tipped. Black Oaks. * Stamens usually Jf-—6 • abortive ovules basal. —h Leaves deciduous in their first autumn or winter. ++ Leaves pinnately lobed. 1. Quercus rubra, L. Red Oak. Leaves obovate or oblong, acute or acuminate, abruptly or gradually wedge- shaped or rounded at the broad or narrow base, usually divided about half way to the midribs by wide oblique sinuses rounded at tlie bottom into 11 or sometimes into 7 or 9 acute oblique ovate lobes tapering from broad bases and mostly sinuately 3-toothed at the apex, with elongated bristle-pointed teeth, or sometimes oblong- obovate, gradually narrowed and wedge-shaped at the base, and sinuately lobed, with broad acute usually entire or slightly dentate lobes, when they unfold pink, covered with soft silky pale pubescence on the upper surface and below with thick white tomentum, soon glabrous, and at maturity thin and firm, dark green, dull and gla- FAGACE^ 231 brous above, pale yellow-green, glabrous or rarely puberulous and sometimes fur- nished with small tufts of rusty hairs in the axils of the veins below, 5'-9' long, 4'-6' broad, falling early in the autumn after turning dull or sometimes bright orange- color or brown; their petioles stout, yellow or red, l'-2' long. Flowers: staminate in pubescent ameuts 4'-5' long; calyx deeply divided into 4 or 5 narrow ovate rounded lobes shorter than the stamens; pistillate on short glabrous peduncles, their invo- lucral scales broadly ovate, dark reddish brown, shorter than the conspicuous linear acute bract of the flower and as long as the lanceolate acute calyx-lobes; stigmas bright green. Fruit solitary or in pairs, sessile or stalked; acorn ovate or oval, with a broad base, gradually narrowed and rounded at the apex, f '-1^' long, ^'-1' wide, usually inclosed only at the base in the thick shallow saucer-shaped cup reddish brown and puberulous within, and covered by thin closely appressed ovate acute bright red-brown puberulous scales. A tree, usually 70°-80° or occasionally 150° high, with a trunk 3°-4° in diameter, and stout branches spreading gradually artd usually forming a comparatively narrow round-topped head, or growing at right angles to the stem into a broad round-topped crown, and slender lustrous branchlets bright green and covered when they first appear with pale scurfy caducous pubescence, dark red during their first winter, be- coming more or less tinged with orange-green in their second and third years and ultimately dark brown. Winter-buds ovate, gradually narrowed at the acute apex, about y long, with thin ovate acute light chestnut-brown scales. Bark on young stems and on the upper part of the limbs of large trees smooth, light gray, becoming on older trunks I'-l^' thick, dark brown tinged with red, and divided into small thick appressed plates scaly on the surface. "Wood heavy, hard, strong, close-grained, light reddish brown, with thin darker colored sapwood; used in construction, for the interior finish of houses, and in furniture. Distribution. Nova Scotia and southern New Brunswick through Quebec to the northern shores of Lake Huron and to Lake Naraekagon, southward to middle Ten- nessee and Virginia, and along the high Appalachian Mountains to northern Georgia, and westward to eastern Nebraska and central Kansas; rare and of small size toward the northern limits of its range; abimdant in southern Nova Scotia, Quebec, and Ontario; one of the largest and most common trees of the forests of the northern 232 TREES OF NORTH AMERICA states, and of its largest size in the region north of the Ohio River; less common and usually of smaller size southward. Often planted as an ornamental or shade tree in the northeastern states and in the countries of western and northern Europe; generally more successful in Europe than other American Oaks. 2. Quercus palustris, Muench. Pin Oak. Swamp Spanish Oak. Leaves obovate, narrowed and wedge-shaped or broad and truncate at the base, divided by wide deep sinuses rounded at the bottom into 5-7 lobes, the terminal lobe ovate, acute, 3-toothed toward the apex or entire, the lateral lobes spreading or oblique, sometimes falcate, especially those of the lowest pair, gradually tapering and acute at the dentate apex or obovate and broad at the apex, when they unfold light bronze-green stained with red on the margins, lustrous and puberulous above. h^. (g'7 coated below and on the petioles with pale scurfy pubescence, at maturity thin and firm, dark green and very lustrous above, pale below, with large tufts of pale hairs in the axils of the primary veins, 4'-6' long, 2'-4' wide, with stout midribs and con- spicuous primary veins, late in the autumn turning gradually deep scarlet; their petioles slender, yellow, ^'-2' long. Flowers :,staminate in hairy aments 2'-3' long; calyx puberulous and divided into 4 or 5 oblong rounded segments more or less laciniately cut on the margins, shorter than the stamens; pistillate on short tomentose peduncles, their involucral scales broadly ovate, tomentose, shorter than the acumi- nate calyx-lobes; stigmas bright red. Fruit sessile or short-stalked, solitary or clus- tered; acorn nearly hemispherical, about ^' in diameter, light brown, often striate, inclosed only at the base in a thin saucer-shaped cup dark red-brown and lustrous within, and covered by closely appressed ovate light red-brown thin puberulous scales. A tree, usually 70°-80° high, with a trunk 2°-3° in diameter, often clothed with small tough drooping branches, or when crowded in the forest sometimes 120° high, with a trunk 60°-70° tall and 4°-5° in diameter, slender branches beset with short- ridged spur-like laterals a few inches in length, forming while young a broad sym- metrical pyramidal head, becoming open and irregular, with rigid and more pendu- lous branches often furnished with small drooping branchlets, and slender tough FAGACE^ 233 branchlets dark red and covered at first by short pale silvery tomentum, soon be- coming green and glabrous, lustrous, dark red-brown or orange color in their first -winter, growing darker in their second year and ultimately dark gray-brown. Winter-buds ovate, gradually narrowed and acute at the apex, about i' long, with imbricated light chestnut-brown scales puberulous toward the thin sometimes ciliate margins. Bark of young trunks and branches smooth, lustrous, light browu fre- quently tinged with red, becoming on older trunks f'-l^ thick, light gray-brown, generally smooth and covered by small closely appressed scales. Wood heavy, hard, strong, coarse-grained, light brown, with thin rather darker colored sapwood; sometimes used in construction, and for shingles and clapboards. Distribution. Borders of swamps and river-bottoms in deep moist rich soil; valley of the Connecticut River in western Massachusetts to southern Missouri, and southward to the valley of the lower Potomac River, Virginia, central Kentucky, southwestern Tennessee, northern Arkansas and the eastern borders of the Indian Territory; rare and of small size in New England; exceedingly common on the coast plain south of the Hudson River; of its largest size and very abundant on the bot- tom-lands of the streams of the lower Ohio basin. Often cultivated as an ornamental tree in the northeastern states and in the coun- tries of western and central Europe. 3. Quercus Georgiaua, M. A. Curtis. Leaves convolute in the bud, oval or obovate, gradually narrowed and wedge- shaped at the base, divided generally about half way to the midribs by wide or nar- row oblique sinuses rounded at the bottom into 3-7 lobes, the terminal lobe ovate, acute, or rounded and entire or frequently furnished with 1 or 2 small lateral teeth, the lateral lobes oblique or spreading, mostly triangular, acute and entire, or those i of the upper or of the middle pair often broad and repand-lobulate at the oblique ends, sometimes gradually 3-lobed at the broad apex and narrowed and entire below, or equally 3-lobed, with broad or narrow spreading lateral lobes, or occasionally pinnatifid, when they unfold bright green tinged with red, ciliate on the margins and coated on the midribs, veins, and petioles with loose pale stellate pubescence, at maturity thin, bright green and lustrous above, paler below, and glabrous or fur- 234 TREES OF NORTH AMERICA nished with tufts of hairs in the axils of the primary veins, usually about 2|' long and 1^' wide, turning dull orange and scarlet in the autumn before falling; their petioles slender, ^'-f' long. Flowers: staminate in slender glabrous or pubescent aments 2'-3' long; calyx divided into 4 or 5 broadly ovate rounded segments rather shorter than the stamens; pistillate on short glabrous slender stalks, their involucral scales rather shorter than the acute calyx-lobes, pubescent or puberulous; stigmas bright red. Fruit short-stalked; acorn ellipsoidal or subglobose, ^'-^ long, light red-brown and lustrous, inclosed for one third to nearly one half its length in a thick cup-shaped cup light red-brown and lustrous on the inner surface, and cov- ered by thin ovate bright light red-brown truncate erose scales. Distribution. Central Georgia, on Stone Mountain, Dekalb County, and on a few other granite hills between the Yellow and Oconee rivers in the region south and east of Stone Mountain. 4. Quercus ellipsoidalis, E. J. Hill. Black Oak. Leaves oval to obovate-orbicular, acute or acuminate, truncate or broadly cune- ate at the base, deeply divided by wide sinuses rounded at the bottom into 5-7 oblong lobes repandly dentate at the apex, or often, especially those of the upper piQ. 18'9 pair, repandly lobulate, when they unfold slightly tinged with red and hoary-tomen- tose, soon becoming glabrous with the exception of small tufts of pale hairs in the axils of the principal veins, at maturity thin and firm, bright green and lustrous above, paler and sometimes entirely glabrous below, 3'-5' long, 2^-4' wide, with stout midribs and primary veins and prominent reticulate veinlets, late in the autumn turning yellow or pale brown more or less blotched with purple; their peti- oles slender, glabrous or rarely puberulous, l^'-2' long. Flowers: staminate in puberulous aments l^'-2' long; calyx membranaceous, campanulate, usually tinged with red, 2-5-lobed or parted into oblong-ovate or rounded segments, glabrous or slightly villous, fringed at the apex with long twisted hairs, about as long as the 2-5 stamens with short filaments and oblong anthers; pistillate on stout tomentose 1-3- flowered peduncles, red, their involucral scales broad, hairy, oblong, acute; calyx campanulate, 4-7ilobed, ciliate on the margins. Fruit short-stalked or nearly ses- sile, solitary or in pairs; acorn ellipsoidal, cylindrical to subglobose, chestnut-brown, FAGACE^ 235 often striate and puberulous, inclosed for one third to one half its length in a turbi- nate or cup-shaped cup gradually narrowed at the base, thin, light red-brown, pu- berulous on the inner surface, and covered by narrow ovate obtuse or truncate brown pubescent closely appressed scales. A tree, 60°-70° high, with a short trunk rarely 3° in diameter, much forked branches ascending above and often pendulous low on the stem, forming a narrow oblong head, and slender branchlets covered at first with matted pale hairs, bright reddish brown during their first winter, becoming dark gray-brown or reddish brown in their second season. Wiiiter-buds ovate, obtuse, or acute, sometimes slightly angled, about ^long, with ovate or oval red-brown lustrous slightly puberulous outer scales ciliate on the margins. Bark thin, light yellow internally, close, rather smooth, divided by shallow connected fissures into thin plates, dark brown near the base, dull above, gray-brown and only slightly furrowed on the large branches. Distribution. In the neighborhood of Chicago, Illinois, to eastern Iowa and southeastern Minnesota. 5. Quercus Texana, Buckl. Red Oak. Leaves obovate, truncate or abruptly or rarely gradually wedge-shaped at the base, divided by wide or narrow oblique sinuses rounded at the bottom into usually 7 rarely 9 or sometimes 5 lobes, the terminal lobe oblong, dentate or entire toward the acute apex, with two spreading lateral teeth, the lateral lobes contracted below the broad apex or occasionally tapering from the base and coarsely repand-dentate above the middle, when they unfold light red and covered with pale scurfy pu- bescence, at maturity thin and firm, bright green, lustrous and glabrous above, paler, r^ with large tufts of pale hairs in the axils of the primary veins below, 2l'-6' long, 2'-5' wide, with slender red or yellow midribs, late in the autumn turning gradually dark vinous red or brown, or often falling with only a slight change of color; their petioles slender, nearly terete, reddish, l'-2' long. Flovrers : staminate in slender slightly pubescent aments 2'-3' long; calyx thin, villous on the outer surface, divided into 4 or 5 acute laciniately cut segments ; pistillate on short hoary-tomentose pe- duncles, their involucral scales brown tinged with red, pubescent; stigmas bright red. Fruit sessile or stalked, usually solitary; acorn oval, abruptly narrowed and 236 TREES OF NORTH AMERICA rounded at the base, full and rounded or gradually or abruptly narrowed and rounded at the apex, puberulous, light reddish brown, sometimes conspicuously striate, with broad dark bands, ^'-1^' long, inclosed for one thii'd to nearly one half its length in a turbinate or deeply cup-shaped cup light reddish brown and puberulous within, covered by thin closely imbricated ligiit brown scales rounded at the ends and hoary- tomentose, except on their red-brown margins. A tree, occasionally nearly 200° high, with a trunk free of branches for 80°-90°, and 7°-8° in diameter above the nmch enlarged buttressed base, comparatively small branches spreading into a narrow head, and stout brittle branchlets coated at first with hoary pubescence, soon glabrous and bright green, lustrous, orange or reddish brown during their first winter, becoming ashy gray or dark brown the fol- lowing year; often much smaller toward the western limits of its range in Texas and usually 30°-40° tall; sometimes reduced to a shrub. "Winter-buds ovate or obovate, full and abruptly rounded at the apex, ^'-\' long, with thin closely imbri- cated dark brown scales. Bark of young stems and branches thin, smooth, light gray, becoming on old trunks f'-l^' thick, light brown tinged with red, and divided into broad ridges broken into thick square plate-like scales. Wood heavy, hard, close-grained, light reddish brown; now often manufactured into lumber in the Mississippi valley and considered more valuable than that of the eastern Red Oak. Distribution, Northeastern Iowa and central Illinois, through southern Illinois and Indiana and western Kentucky and Tennessee to the valley of the Appalachi- cola River, Florida, northern Georgia, central South Carolina, and the coast plain of North Carolina, and through southern Missouri, Arkansas, and Louisiana to the mountains of western Texas; most abundant and of its largest size on the low bot- tom-lands of the Mississippi basin, often forming a considerable part of lowland forests; less abundant in the eastern Gulf states; in western Texas on the low lime- stone hills and on bottom-lands in the neighborhood of streams. 6. Quercus coccinea, Moench. Scarlet Oak. Leaves oblong-obovate or oval, truncate or wedge-shaped at the base, deeply divided by wide sinuses rounded at the bottom into 7 or rarely 9 lobes repand-den- tate at the apex, the terminal lobe ovate, acute, and 3-toothed, the middle division the largest and furnished with 2 small lateral teeth, the lateral lobes obovate, oblique or spreading, sometimes falcate, usually broad and oblique at the coarsely toothed apex, when they unfold bright red covered with loose pale pubescence above and below with silvery white tomentum, green at the end of a few days, at maturity thin and firm, bright green, glabrous and very lustrous above, paler and less lustrous and sometimes furnished with small tufts of rusty pubescence in the axils of the veins below, 3'-6' long, 2^'-4' broad, with yellow midribs and primary veins, late in the autumn turning brilliant scarlet; their petioles slender, terete, l^'-2^' long. Flo"wers: staminate in slender glabrous aments 3'-4' long; calyx pubescent, bright red before opening, divided into 4 or 5 ovate acute segments shorter than the stamens; pistillate on pubescent peduncles sometimes ^ long, bright red, their in- volucral scales ovate, pubescent, shorter than the acute calyx-lobes. Fruit sessile or stalked, solitary or in pairs; acorn oval, oblong-ovate or hemispherical, truncate or rounded at the base, rounded at the apex, ^-1' long, |'-f ' broad, light reddish brown and occasionally striate, inclosed for one third to one half its length in a deeply cup- shaped or turbinate thin cup light reddish brown on the inner surface, and covered by closely imbricated oblong-ovate acute light reddish brown slightly puberulous scales. FAGACE^ 237 A tree, 70°-80° high, with a trunk 2°-3° in diameter, comparatively small branches spreading gradually and forming a rather narrow open head, and slender branchlets coated at first with loose scurfy pubescence, soon pale green and lustrous, light red or orange-red in their first winter and light or dark brown the following year; usu- ally much smaller. Winter-buds oval or ovate, gradually narrowed at the acute apex, ^'-\' long, dark reddish brown, and pale-pubescent above the middle. Bark of young stems and branches smooth, light brown, becoming on old trunks |^'-1' thick and divided by shallow fissures into irregular ridges covered by small light brown scales slightly tinged with red. Wood heavy, hard, strong, coarse-grained, light or reddish brown, with thicker darker colored sapwood. Distribution. Light dry usually sandy soil; valley of the Androscoggin River, Maine, through southern New Hampshire and Vermont and central New York to southern Ontario, westward through central Michigan and Minnesota to southeastern Nebraska, and southward to the District of Columbia and northern Illinois, and along the Alleghany Mountains to North Carolina; very abundant in the coast region from Massachusetts Bay to southern New Jersey; less common in the inte- rior, growing on dry gravelly uplands, and on the prairies skirting the western mar- gins of the eastern forest. Occasionally planted in the northeastern states and in Europe as an ornamental tree valued chiefly for the brilliant autumn color of the foliage. 7. Quercus velutina, Lam. Black Oak. Yello-w-bark Oak. Leaves ovate or oblong, rounded, wedge-shaped or truncate at the base, mostly 7-lobed and sometimes divided nearly to the middle by wide rounded sinuses into narrow obovate more or less repand-dentate lobes, or into elongated nearly entire mucronate lobes tapering gradually from a broad base, the terminal lobe oblong, elongated, acute, furnished with small lateral teeth, or broad, rounded, and coarsely repand-dentate, or slightly divided into broad dentate lobes or sinuate-dentate, bright crimson when they unfold, and covered above by long loose scattered white hairs and below with thick pale or silvery white tomentum, hoary-pubescent when half grown, and at maturity thick and firm or subcoriaceous, dark green and lustrous above, below yellow-green, brown or dull copper color and more or less pubescent or glabrous with the exception of tufts of rusty hairs in the axils of the principal 238 TREES OF NORTH AMERICA veins, 3'-12' long and 2'-10' wide, but usually 5'-6' long and 3'^' wide, with stout midribs and primary veins, late in the autumn turning dull red, dark orange color, or brown, and falling gradually during the winter; their petioles stout, yellow, gla- brous or puberulous, 3'-G' long. Flowers: staminate on tomentose or pubescent aments 4'-6' long; calyx coated with pale hairs, with ovate acute lobes; pistillate on short tomentose peduncles, their involucral scales ovate, shorter than the acute calyx-lobes; stigmas bright red. Fruit sessile or short-stalked, solitary or in pairs; nut ovate-oblong, obovate, oval or hemispherical, broad and rounded at the base, full and rounded at the apex, light red-brown, often striate, frequently coated with soft rufous pubescence, ^'-|' long, inclosed for about one half its length in the thin deeply cut-shaped turbinate cup dark red-brown and puberulous on the inner surface. covered by thin light chestnut-brown acute hoary scales closely appressed at the base of the cup, loosely imbricated above the middle, with free scarious tips forming a fringe-like border to its rim. A tree, often 70°-80° and occasionally 150° high, with a trunk 3°^° in diameter, slender branches spreading gradually into a narrow open head, stout branchlets coated at first with pale or fulvous scurfy tomentum, becoming in their first winter glabrous, dull red or reddish brown, growing dark brown in their second year or brown slightly tinged with red. Winter-buds ovate, strongly angled, gradually narrowed and obtuse at the apex, hoary-tomentose, \'-^' long. Bark of young stems and branches smooth, dark brown, deep orange color internally, becoming f -1^' thick on old trunks, and deeply divided into broad rounded ridges broken on the surface into thick dark brown or nearly black closely appressed plate-like scales. Wood heavy, hard, strong, coarse-grained, bright brown tinged with red, with thin lighter colored sapwood; of little value except as fuel. The bark abounds in tannic acid and is largely used in tanning, as a yellow dye, and in medicine. Distribution. Dry gravelly uplands and ridges; coast of southern Maine to northern Vermont, southern and western Ontario and central Minnesota, and south- ward to northern Florida, southern Alabama and Mississippi, southeastern Nebraska, eastern Kansas, the Indian Territory and eastern Texas; one of the commonest Oaks on the gravelly drift of southern New England and the middle states; often forming a large part of the forest growth in the foothill regions of the southern Appalachian FAGACE^ 239 Mountains; abundant in all parts of the Mississippi basin, and of its largest size in the valley of the lower Ohio River; the common species of the Black Oak group reaching the south-Atlantic and Gulf coast, and here generally scattered on dry ridges through the maritime Pine belt. Quercus velutina, which is more variable in the form of its leaves than the other North American Black Oaks, is easily recognized by the bright yellow color of the inner bark, in early spring by the deep red color of the unfolding leaves, becoming pale and silvery in a few days, and by the large tomentose winter-buds. From west- ern Missouri to northwestern Arkansas a form occurs (var. Missouriensis, Sarg., nov. var.^ with the mature leaves stellate-pubescent above, and coated below and on the petioles and summer brauehlets with rusty pubescence, and with broader more loosely imbricated hoary-tomentose cup-scales. 8. Quercus Californica, Coop. Black Oak. Leaves oblong or obovate, truncate, wedge-shaped or rounded at the narrow base, 7 or rarely o-lobed by wide and deep or shallow and oblique sinuses rounded at the bottom, the terminal lobe ovate, 3-toothed at the acute apex, the lateral lobes taper- ing gradually from the base or broad and obovate, coarsely repand-dentate, with acute pointed teeth, or rarely entire, when they unfold dark red or purple and pilose above and coated below and on the petioles with thick silvery white tomentum, at maturity thick and firm, lustrous, dark yellow-green and glabrous or rarely stellate- pubescent above, light yellow-green or brownish and glabrous or pubescent, or occa- sionally hoary-tomentose below, 3'-6' long, 2'-4' wide, turning yellow or brown in the autumn before falling; their petioles slender, yellow, l'-2' long. Flo"wers : staminate in hairy aments 4'-5' long; calyx pubescent, divided into 4 or 5 ovate acute segments shorter than the stamens, with bright red anthers; pistillate on short tomentose peduncles, their involucral scales ovate, coated like the acute calyx-lobes with pale tomentum; stigmas dark red. Fruit short-stalked, solitary or clustered; acorn oblong, oval or obovate, broad and rounded at the base, full and rounded or gradually narrowed and acute at the puberulous apex, I'-l^' long, about |' broad, light chestnut-brown, often striate, inclosed for one fourth to two thirds its length in the deep cup-shaped cup light brown and puberulous on the inner surface, and covered by thin ovate-lanceolate lustrous light chestnut-brown scales, sometimes 240 TREES OF NORTH AMERICA rounded and thickened on the back toward the base of the cup, their tips elongated thin and erose on the margins, often forming a narrow fringe-like border to the rim of the cup. A tree, occasionally 100° high, with a trunk 3°-4° in diameter, stout spreading brandies forming an open round-topped head, and branchlets coated at first witli thick hoary caducous tomentum, bright red or brown tinged with red, and usually glabrous or pubescent or puberulous during their first winter, becoming dark red- brown in their second year; frequently much smaller and at high elevations a small shrub. Winter-buds ovate, gradually narrowed and acute at the apex, about \' long, with closely imbricated pale chestnut-brown scales ciliate on the thin scari- ous margins and pubescent toward the point of the bud. Bark of young stems and branches smooth, light brown, becoming on old trunks I'-l^ thick, dark brown slightly tinged with red or nearly black, divided into broad ridges at the base of old trees and broken above into thick irregular oblong plates covered by minute closely appressed scales. Wood heavy, hard, strong, very brittle, bright red, with thin lighter colored sapwood; occasionally used as fuel. Distribution. Valleys and mountain slopes ; basin of the Mackenzie River in western Oregon, southward over the California coast ranges, and along the western slopes of the Sierra Nevada up to elevations of 7000°-8000° to the Cuyaraaca Moun- tains near the southern boundary of California; rare in the immediate neighborhood of the coast; the largest and most abundant Oak-tree of the valleys of southwestern Oregon and of the Sierra Nevada, sometimes forming groves of considerable extent in coniferous forests; of its largest size at elevations of about 6000° above the sea. 9. Querous Catesbaei, Michx. Turkey Oak. Leaves oblong or obovate or nearly triangular, gradually narrowed and wedge- shaped at the base, deeply divided by wide rounded sinuses into 3 or 5 or rarely 7 pK^. ]94- lobes, the terminal lobe ovate, elongated, acute and entire or repand-dentate, or obovate and coarsely equally or irregularly 3-toothed at the apex, the lateral lobes spreading, usually falcate, entire and acute, tapering from their broad bases, and broad, oblique, and repand-lobulate at the apex; or 3-toothed at the broad apex and gradually narrowed to the base, coated when they unfold with rufous articulate FAGACE^ 241 hairs, and when fully grown thick and rigid, bright yellow-green and lustrous above, paler, lustrous, and glabrous below, with large tufts of rusty hairs in the axils of the veins, 3'-12' long, I'-IO' wide, but usually about 5' long and broad, with broad yel- low or red-brown midribs, turning brown or dull yellow before falling in the autumn; their petioles stout, grooved, ^'-f long. Flowers: staminate in slender hairy red- steramed aments 4'-5' long; calyx puberulous and divided into 4 or 5 ovate acute lobes; pistillate on short stout tomentose peduncles, their involucral scales bright red, pubescent, hairy at the margins; stigmas dark red. Fruit short-stalked, usually solitary; acorn oval, full and rounded at the ends, about 1' long and |' broad, dull light brown, covered at the apex by a thin coat of snow-white tomentum, inclosed for about one third its length in a thin turbinate cup often gradually narrowed into a stout stalk-like base, light red-brown, lustrous, and puberulous on the inner surface, covered by ovate-oblong rounded scales extending above the rim of the cup and down over the upper third of the inner surface, and hoary-pubescent except on their thin bright red margins. A tree, usually 20°-30°, or occasionally 50°-60° high, with a trunk rarely exceed- ing 2° in diameter, stout spreading more or less contorted branches forming a nar- row open irregular generally round-topped head, and stout branchlets coated at first with stellate articulate hairs, nearly glabrous and deep red when the leaves are half grown, dark red in their first winter, gradually growing dark brown; generally much smaller and sometimes shrubby. Winter-buds elongated, acute, ^' long, with light chestnut-brown scales erose on the thin margins, and coated, especially toward the point of the bud, with rusty pubescence. Bark ^'-V thick, red internally, dark gray tinged v/ith red on the surface, and at the base of old trunks becoming nearly black, deeply and irregularly furrowed and broken into small appressed scales. Wood heavy, hard, strong, rather close-grained, light brown tinged with red, with thick lighter colored sapwood; largely used for fuel. Distribution. Dry barren sandy ridges and sandy bluffs and hummocks in the neighborhood of the coast; North Carolina to Cape Malabar and the shores of Peace Creek, Florida, and to eastern Louisiana; comparatively rare tow'ard the western limits of its range, and most abundant and of its largest size on the high bluff-like shores of bays and estuaries in South CarMina and Georgia. 10. Quercus nana, Sarg. Bear Oak. Scrub Oak. Leaves obovate or rarely oblong, gradually or abruptly wedge-shaped at the base, divided by wide shallow sinuses into 3-7, usually 5, acute lobes, the terminal lobe ovate, elongated, rounded and 3-toothed or acute and dentate or entire at the apex, the lateral lobes spreading, mostly triangular and acute, or those of the upper pair broad, oblique and repand-lobulate, or broad at the apex, slightly 3-lobed and entire below, or deeply 3-lobed above and sinuate below, or occasionally oblong to oblong-obovate and entire, with undulate margins, dull red and puberulous or pubescent on the upper surface and coated on the lower and on the petioles with thick pale tomentum when they unfold, when half grown light yellow-green, lus- trous, slightly pubescent above and tomentose below, with conspicuous tufts of silvery white hairs in the axils of the veins, at maturity thick and firm, dark green and lustrous above, covered below with pale or silvery white pubescence, 2'-o' long, l^'-3' wide, with stout yellow midribs and slender primary veins, turning dull scarlet or yellow before falling in the autumn; their petioles slender, glabrous, or pubescent, I'-l^' long. Flowers: staminate in hairy aments I'-o' long, and often 242 TREES OF NORTH AMERICA persistent until midsummer; calyx red or green tinged with red and irregularly divided into 3-5 ovate rounded lobes shorter than the stamens, with bright red ultimately yellow anthers; pistillate on stout tomentose peduncles, their involucral scales ovate, about as long as the acute calyx-lobes, red, and tomentose; stigmas P-'^' ^9J- dark red. Fruit produced in great profusion, sessile or stalked, in pairs or rarely solitary; acorn ovoid, broad, flat or rounded at the base, gradually narrowed and acute or rounded at the apex, about ^' long and broad, light brown, lustrous, usually faintly striate, inclosed for about one half its length in the cup-shaped or saucer- shaped cup often abruptly enlarged above the stalk-like base, thick, light reddish brown and puberulous within, and covered by thin ovate closely imbricated red- brown puberulous scales acute or truncate at the apex, the minute free tips of the upper scales forming a fringe-like border to the cup. A tree, occasionally 18°-20° high, with a trunk 5'-6' in diameter, with slender spreading branches usually forming a round-topped head, and slender branchlets dark green more or less tinged with red and hoary-pubescent at first, during their first winter red-brown or ashy gray and pubescent or puberulous, becoming glabrous and darker in their second year and ultimately dark brown or nearly black; more frequently an intricately branched shrub, with numerous contorted stems 3°-10° tall. Winter-buds ovate, obtuse, about ^' long, with dark chestnut-brown rather loosely imbricated glabrous or pilose scales. Bark thin, smooth, dark brown, covered by small closely appressed scales. Distribution. Dry sandy barrens and rocky hillsides; coast of eastern Maine southward through eastern and southern New England to eastern Pennsylvania and along the Alleghany Mountains to southern Virginia, and westward to the shores of Lake George and the valley of the Hudson River; common in eastern and southern New England, in the Pine barrens of New Jersey, and in eastern Pennsylvania. 11. Quercus digitata, Sudw. Spanish Oak. Leaves oblong or obovate, generally narrowed and wedge-shaped or abruptly wedge-shaped or rounded and slightly narrowed at the base, sometimes divided by deep wide sinuses rounded at the bottom into 3, 5, or 7 lobes, the terminal lobe FAGACE^ 243 generally much elongated, often falcate, acute, entire or repand-dentate at the apex, the lateral lobes oblique and spreading or often falcate, gradually narrowed from a broad base, acute, and entire ; or oblong-obovate and divided at the broad apex by wide or narrow sinuses broad and rounded at the bottom into 3 rounded or acute entire or dentate lobes, and entire and gradually narrowed below into an acute or rounded base, the two forms usually occurring on different but sometimes on the same tree; hanging closely appressed against the stem when they unfold, when fully grown thin and firm, dark green and lustrous above, coated below with soft close pale or rusty pubescence, 6'-7' long and 4'-5' wide, obscurely reticulate-venulose, with stout tomentose midribs and primary veins, turning brown or dull orange color in the autumn before falling; their petioles slender, flattened, l'-2' long. Flowers: staminate in tomentose aments, 3-5' long; calyx thin and scarious, pubescent on the outer surface, divided into 4 or 5 ovate rounded segments; pistillate on stout tomen- tose peduncles, their involucral scales coated with rusty tomentum, as long or rather shorter than the acute calyx-lobes; stigmas dark red. Fruit sessile or short-stalked; acorn subglobose to ellipsoidal, full and rounded at the apex, truncate and rounded at the base, about ^' long, bright orange-brown, inclosed only at the base or some- times for one third its length in a thin saucer-shaped cup flat on the bottom or gradually narrowed from a stalk-like base, or deep and turbinate, bright red-brown and puberulous on the inner surface, covered by thin ovate-oblong reddish scales acute or rounded at the apex and pale-pubescent except on the margins. A tree, usually 70°-80° high, with a trunk 2°-3° in diameter, stout spreading branches forming a broad round-topped open head, and stout branchlets coated at first, like the young leaves, with a thick rusty or orange-colored clammy tomentum of articulate hairs, dark red or reddish brown and pubescent or rarely glabrous during their first winter, becoming in their second year dark red-brown or ashy gray. Winter-buds ovoid or oval, acute, ^'-\' long, with bright chestnut-brown puberulous or pilose scales ciliate, with short pale hairs. Bark |'-1' thick, dark brown, and divided by shallow fissures into broad ridges covered by thin closely appressed scales. Wood hard, strong, not durable, coarse-grained, light red, with thick lighter colored sap wood ; sometimes used in construction, and largely as fuel. The bark is rich in tannin, and is used in tanning leather and occasionally in medicine. Distribution. Southern New Jersey southward to central Florida, through the Gulf states to the valley of the Brazos River, Texas, through Arkansas and south- 244 TREES OF NORTH AMERICA western Missouri to central Tennessee and Kentucky, and southern Indiana and Illinois; in the north Atlantic states only in the neighborhood of the coast and com- paratively rare; very common in the south Atlantic and Gulf states on dry hills between the coast plain and the Appalachian Mountains; less abundant in the south- ern maritime Pine belt. 12, Quercus pagodcefolia, Ashe. Swamp Spanish Oak. Red Oak. Leaves oval to oblong, acuminate, gradually narrowed and cuneate, or full and rounded or rarely truncate at the base, deeply divided by wide sinuses rounded at the bottom into 5-11 acuminate usually entire repand-dentate lobes often falcate and spreading at right angles to the midrib or pointed toward the apex of the leaf, when they unfold coated with pale tomentum, thickest on the lower surface, and dark red on the upper surface, at maturity dark green and very lustrous above, pale and tomentose below, 6'-8' long and 5'-6' wide, with stout midribs usually puberu- lous on the upper side, slender primary veins arched to the points of the lobes, and conspicuous reticulate veinlets, turning bright clear yellow before falling in the autumn; their petioles stout, pubescent or tomentose, 1^ '-2' long. Flowers: stami- nate in clustered slender villous aments 2'-3' long; calyx thin, scarious, pubescent on the outer surface, more or less deeply tinged with red, divided into 4 or 5 rounded segments; pistillate on 1-3-flowered tomentose peduncles, their involucral scales hoary-tomentose, about as long as the acute calyx-lobes; stigmas dark red. Fruit short-stalked or nearly sessile; acorn ovate to subglobose, light yellow-brown, puber- ulous toward the rounded apex, about f ' in diameter, inclosed for nearly one half its length in a flat or slightly turbinate cup thin, slightly lobed on the border, glabrous on the inner surface, and covered by oblong rather loosely imbricated scales pale- pubescent except on their dark margins. A tree, sometimes 120° high, with a trunk 4°-5° in diameter, heavy branches forming in the forest a short narrow crown, or in more open situations wide-spread- ing or ascending and forming a great open head, and slender branchlets hoary tomentose at first, tomentose or pubescent during their first winter, and dark reddish brown and puberulous during their second year. Winter-buds ovoid, acute, often prominently 4-angled, about \' long, with light red-brown puberulous scales some- times ciliate at the apex. Bark about 1' thick and roughened by small rather closely appressed plate-like light gray or gray-brown scales. Wood light reddish FAGACE^ 245 brown, with thiu nearly white sap wood; largely manufactured into lumber in the Mississippi valley and valued almost as highly as white oak. Distribution. Rich bottom-lands and the alluvial banks of streams; southwest- ern Virginia to northern Florida, and through the Gulf states and Arkansas to southern Missouri, western Tennessee and Kentucky, and southern Illinois and Indiana; most abundant and one of the largest and most valuable timber-trees in the river swamps of the Yazoo basin, Mississippi, and of eastern Arkansas. 13. Quercus Marilandica, Muench. Black Jack. Jack Oak. Leaves broadly obovate, rounded or cordate at the narrow base, usually 3 or rarely 5-lobed at the broad and often abruptly dilated apex, with short or long, broad or narrow, rounded or acute, entire or dentate lobes, or entire or dentate at the apex, sometimes oblong-obovate, undulate-lobed at the broad apex and entire below or ^■1(^.(93' equally 3-lobed, with elongated spreading lateral lobes broad and lobulate at the apex, when they unfold coated with a clammy tomentum of articulate hairs, and bright pink on the upper surface, at maturity thick and firm or subcoriaceous, dark yellow-green and very lustrous above, yellow, orange color, or brown and scurfy- pubescent below, usually 6'-7' long and broad, with thick broad orange-colored mid- ribs, turning brown or yellow in the autumn before falling; their petioles stout, yellow, glabrous or pubescent, ^'-f long. Flowers: staminate in hoary aments 2'-4' long; calyx thin and scarious, tinged with red above the middle, pale-pubescent on the outer surface, divided into 4 or 5 broad ovate rounded lobes; anthers apicu- late, dark red; pistillate on short rusty-tomentose peduncles coated like their involucral scales with thick rusty tomentum; stigmas dark red. Fruit, solitary or in pairs, usually pedunculate; acorn oblong, full and rounded at the ends, rather broader below than above the middle, about |^' long, light yellow-brown and often striate, the shell lined with dense fulvous tomentum, inclosed for one third to nearl}' two thirds its length in a thick turbinate light brown cup puberulous on the inner surface, and covered by large reddish brown loosely imbricated scales often ciliate and coated with loose pale or rusty tomentum, the upper scales smaller, erect, inserted on the top of the cup in several rows, and forming a thick rim round its inner surface, or occasionally reflexed and covering the upper half of the inner surface of the cup. A tree, 20°-30°, or occasionally 40°-o0° high, with a trunk rarely more than 18' 246 TREES OF NORTH AMERICA in diameter, short stout spreading often contorted branches forming a narrow com- pact round-topped or sometimes an open irregular head, aii4 stout branchlets coated at first with a thick pale tomentum of articulate and stellate hairs, light brown and scurfy-pubescent during their first summer, becoming reddish brown and glabrous or puberulous in the winter, and ultimately brown or ashy gray. Winter-buds ovate or oval, prominently angled, light red-brown, coated with rusty brown hairs, about V long. Bark I'-l^' thick, and deeply divided into nearly square plates l'-3' long covered by small closely appressed dark brown or nearly black scales. 'Wood heavy, hard, strong, dark rich brown, with thick lighter colored sapwood; largely used as fuel and in the manufacture of charcoal. Distribution. Dry sandy or clay barrens; Long Island, New York, through northern Ohio and Indiana to southeastern Nebraska, central Kansas, and the Indian Territory, and southward to the shores of Matanzas Inlet and Tampa Bay, Florida, and to the valley of the Nueces River, Texas; rare in the north; very abundant southward; west of the Mississippi River often forming on sterile soils a great part of the forest growth; of its largest size in southern Arkansas and eastern Texas. 14. Quercus nigra, L. Water Oak. Leaves usually oblong-obovate, gradually narrowed and wedge-shaped at the base, enlarged sometimes abruptly at the broad generally rounded or sometimes pointed entire or slightly or deeply 3-lobed apex, or often acute at the ends, and on upper branchlets sometimes linear-lanceolate to linear-obovate, acute or rounded at the apex, divided above the middle by deep wide rounded sinuses into elongated lanceo- late acute entire lobes, or pinnatifid above the middle, when they unfold thin, light green more or less tinged with red, and covered by fine caducous pubescence, with conspicuous tufts of pale hairs in the axils of the veins below, at maturity thin dull bluish green, paler below than above, glabrous or with axillary tufts of rusty hairs, usually about 2i' long and 1^ wide, or on fertile branches sometimes 6' long and 2^' wide, falling gradually during the winter; their petioles stout, flattened, \'-^' long. Flovrers : staminate in red hairy-stemmed aments 2'-3' long; calyx thin and scarious, covered on the outer surface with short hairs, deeply divided into 4 or 5 ovate rounded segments; pistillate on short tomentose peduncles, their involucral scales a little shorter than the acute calyx-lobes and coated with rusty hairs; stigmas deep red. Fruit usually solitary, sessile or short-stalked; acorn ovoid, broad and flat FAGACE^ 247 at the base, full and rounded at the pubescent apex, light yellow-brown, often striate, y-|' long and nearly as broad, usually inclosed only at the base in a thin saucer- shaped cup, or occasionally for one third its length in a cup-shaped cup, coated on the inner surface with pale silky tomentum and covered by ovate acute closely ap- pressed light red-brown scales clothed with pale pubescence except on their darker colored margins. A tree, occasionally 80° high, with a trunk 2°-3^° in diameter, numerous slender branches spreading gradually from the stem and forming a symmetrical round-topped head, and slender glabrous branchlets light or dull red during their first winter, becoming grayish brown in the second season. "Winter-buds ovate, acute, strongly angled, covered by loosely imbricated dark red-brown puberulous scales slightly ciliate on the thin margins. Bark ^'— |' thick, with a smooth light brown surface slightly tinged with red and covered by smooth closely appressed scales. Wood heavy, hard, strong, close-grained, light brown, with thick lighter colored sapwood; little valued except as fuel- Distribution. High sandy borders of swamps and streams and the rich bottom- lands of rivers; southern Delaware southward to Cape Malabar and the shores of Tampa Bay, Florida, ranging inland through the south Atlantic states to the base of the Appalachian Mountains, west through the Gulf states to the valley of the Colo- rado River, Texas, through the eastern borders of the Indian Territory, and through Arkansas to southeastern Missouri and to central Tennessee and Kentucky. Commonly planted as a shade- tree in the streets and squares of the cities and towns of the southern states. ++++Leaves lanceolate to oblong or laticeolate-obovate, usually entire. Willow Oaks. 15. Quercus Phellos, L. Willovr Oak. Leaves ovate-lanceolate or rarely lanceolate-obovate, often somewhat falcate, gradually narrowed and acute at the ends, and entire, with slightly undulate margins, when they unfold light yellow-green and lustrous on the upper surface, coated on the lower with pale caducous pubescence, at maturity glabrous, light green and rather lustrous above, dull and paler or rarely hoary-pubescent below, conspicuously reticu- late-venulose, 2^-5' long, ^-1' wide, with slender yellow midribs and obscure pri- mary veins forked and united about half way between the midribs and margins, turning pale yellow in the autumn before falling; their petioles stout, about ^' long. Flowers : staminate in slender-stemmed aments 2'-3' long; calyx yellow, hirsute, with 4 or 5 acute segments; pistillate on slender glabrous peduncles, their involucral scales brown covered by pale hairs, about as long as the acute calyx-lobes; stigmas bright red. Fruit short-stalked or nearly sessile, solitary or in pairs; acorn hemi- spherical, light yellow-brown, coated with pale pubescence, inclosed only at the very base in the thin pale reddish brown saucer-shaped cup silky-pubescent on the inner surface and covered by thin elongated ovate truncate hoary-pubescent scales dark red-brown on the margins. A tree, occasionally 70°-80° high, with a trunk 2° or rarely 4° in diameter, small branches spreading into a comparatively narrow open or conical round-topped head, and slender glabrous reddish brown branchlets roughened by dark lenticels, becom- ing in their second year dark brown tinged with red or grayish brown; usually much smaller. Winter-buds ovate, acute, about ^' long, with dark chestnut-brown scales pale and scarious on the margins. Bark ^'— |' thick, light red-brown slightly 248 TREES OF NORTH AMERICA tinged with red, generally smooth but on old trees broken by shallow narrow fissures into irregular plates covered by small closely appressed scales. "Wood heavy, strong, not hard, rather coarse-grained, light brown tinged with red, with thin lighter colored sapwood; occasionally used in construction, for clapboards and the fellies of wheels. Distribution. Low wet borders of swamps and streams and rich sandy uplands; Staten Island, New York, to northeastern Florida, through the Gulf states to the valley of the Sabine River, Texas, and through Arkansas and southeastern Missouri to central Tennessee and southern Kentucky; in the Atlantic states usually confined to the maritime plain; less common in the middle districts, rarely extending to the Appalachian foothills. Occasionally planted as a shade-tree in the streets of southern towns, and rarely in western Europe. Quercus Rudkini, Britt., a supposed hybrid between Quercus Phellos and Quercus Marilandica, is common on Staten Island and in southern New Jersey. Quercus heterophylla, Michx. f. This is perhaps a hybrid between Quercus Phellos and Quercus velutina. It was first FAGACE^ 249 known in the eighteenth century from an individual growing in a field belonging to John Bartram on the Schuylkill River, Philadelphia. What appears to be the same form has since been discovered in a number of stations from New Jersey to Texas, and it is possible that Quercus heterophylla may, as many botanists have believed, best be considered a species. 16. Quercus laurifolia, Michx. Water Oak. Leaves oblong-oval to oblong-obovate, sometimes falcate, gradually narrowed and acute or rarely rounded at the ends, entire, with slightly thickened often undu- late margins, or on vigorous branches of young trees frequently unequally lobed. r i(^.202 with small almost triangular lobes, when they unfold green tinged with dark red and slightly puberulous, at maturity thin, green, and very lustrous above, light green and less lustrous below, usually 3'-4:' long and |' wide, with conspicuous yellow mid- ribs, falling irregularly during the winter; their petioles stout, yellow, rarely more than \' long. Flowers: staminate in red-stemmed hairy aments 2'-3' long; calyx thin and scarious, pubescent on the outer surface, deeply divided into 4 ovate rounded lobes; pistillate on stout glabrous peduncles, their involucral scales brown and hairy, about as long as the acute calyx-lobes; stigmas dark red. Fruit sessile or subsessile, generally solitary; acorn nearly ovoid to hemispherical, broad and slightly rounded at the base, full and rounded at the puberulous apex, dark brown, becoming striate in drying, with brown and dark olive-green stripes, about \' long, inclosed for about one fourth its length in a thin saucer-shaped cup red-brown and silky-pubescent on the inner surface, and covered by thin ovate light red-brown scales rounded at the ends and pale-pubescent except on their darker colored margins. A tree, occasionally 100° high, with a tall trunk 3°^° in diameter, and compara- tively slender branches spreading gradually into a broad dense round-topped shapely head, and slender glabrous branchlets dark red when they first appear, dark red- brown during their first winter, becoming reddish brown or dark gray in their second season. Winter-buds broadly ovate or oval, abruptly narrowed and acute at the apex, Ye'-y long, with numerous thin closely imbricated bright red-brown scales ciliate on the margins. Bark of young trees \'-V thick, dark brown more or less tinged with red, roughened by small closely appressed scales, becoming at the base 250 TREES OF NORTH AMERICA of old trees V-2' thick, nearly black, and divided by deep fissures into broad flat ridges. Wood heavy, very strong and hard, coarse-grained, liable to check badly in drying', dark brown tinged with red, with thick lighter colored sapwood; probably used only as fuel. Distribution. Sandy banks of streams and swamps and rich hummocks in the neighborhood of the coast; Dismal Swamp, Virginia, southward to the shores of Mosquito Inlet and Cape Romano, Florida, and along the Gulf coast to Louisiana; nowhere abundant, but most common and of its largest size in eastern Florida. 17. Quercus brevifolia, Sarg. Blue Jack. Leaves oblong-lanceolate to oblong-obovate, gradually narrowed and wedge- shaped or sometimes rounded at the base, acute or rounded and apiculate at the apex, entire, with slightly thickened undulate margins, or at the ends of vigorous sterile branches occasionally 3-lobed at the apex and variously lobed on the margins, when they unfold bright pink and pubescent on the upper surface, coated on the lower with thick silvery white tomentum, at maturity firm in texture, blue-green, lustrous, conspicuously reticulate-venulose above, pale-tomentose below, 2'-5' long, ■|'-1^' wide, with stout yellow midribs and remote obscure primary veins forked and united within the margins, deciduous late in the autumn or in early winter; their petioles stout, \'-^' long. Flovrers : staminate in hoary-tomentose aments 2'-3' long; calyx pubescent, bright red, furnished at the apex with a thick tuft of silvery white hairs before opening, divided into 4 or 5 ovate acute segments, becoming yel- low as it unfolds; stamens 4 or 5; anthers apiculate, dark red in the bud, becoming yellow; pistillate on short stout tomentose peduncles, their involucral scales about as long as the acute calyx-lobes and coated with pale tomentum; stigmas dark red. Fruit produced in great profusion, sessile or raised on a short stem rarely ^' long; acorn ovate, full and rounded at the ends, subglobose, about y long, often striate, and hoary-pubescent at the apex, inclosed only at the bottom or for one half its length in a thin saucer-shaped or cup-shaped cup bright red-brown and coated with lustrous pale pubescence on the inner surface, and covered by thin closely imbricated ovate- oblong scales hoary-tomentose except on the dark red-brown margins. A tree, usually 15°-20° high, with a trunk 5'-6' in diameter, stout branches form- FAGACE^ 251 ing a narrow irregular head, and thick rigid branchlets coated at first with a dense fulvous hoary tomentum of articulate and stellate hairs, soon becoming glabrous or puberulous, dark brown sometimes tinged with red during their first winter and darker in their second year; or occasionally 50° high, with a trunk 18'-20' in diame- ter, and a broad round-topped shapely head. Winter-buds ovate, acute, with numer- ous rather loosely imbricated bright chestnut-brown scales ciliate on the margins, often I' long on vigorous branches, frequently obtuse and occasionally much smaller. Bark f '-1^' thick, and divided into thick nearly square plates l'-2' long, and cov- ered by small dark brown or nearly black scales slightly tinged with red. Wood hard, strong, close-grained, light brown tinged with red, with thick darker colored sap wood; probably used only as fuel. Distribution. Sandy barrens and upland ridges; North Carolina south to Cape Malabar and the shores of Peace Creek, Florida, and westward along the Gulf coast to the valley of the Brazos River, Texas; in the Atlantic and middle Gulf states usually confined to a maritime belt 40-50 miles wide; extending across the Florida peninsula, and in Texas ranging inland to the neighborhood of Dallas in about lati- tude 33. 18. Querous imbricaria, Michx. Shingle Oak. Laurel Oak. Leaves oblong-lanceolate to oblong-obovate, apiculate and acute or rounded at the apex, gradually narrowed and wedge-shaped or rounded at the base, entire, with f^\(j.^(DM- slightly thickened revolute often undulate margins, or sometimes more or less 3- lobed, or on sterile branches occasionally repand-lobulate, when they unfold bright red, soon becoming yellow-green, covered with scurfy rusty pubescence on the upper surface and hoary-tomentose on the lower, at maturity thin, glabrous, dark green, and very lustrous above, pale green or light brown and pubescent below, 4'-6' long, |'-2' wide, with stout yellow midribs, numerous slender yellow veins arcuate and united at some distance from the margins, and reticulate veinlets, late in the autumn before falling turning dark red on the upper surface; their petioles stout, pubescent, rarely more than ^' long. Flowers: staminate in hoary-tomentose aments 2'-3' long; calyx light yellow, pubescent, and divided into 4 acute segments; pistillate on slender tomentose peduncles, their involucral scales covered with pale pubescence 252 TREES OF NORTH AMERICA and about as long as the acute calyx-lobes; stigmas greenish yellow. Fruit solitary or in pairs, on stout peduncles nearly ^' long; acorn nearly as broad as long, full and rounded at the ends, dark chestnut-brown, often obscurely striate, -^'-f long, in- closed for one third to one half its length in a thin cup-shaped or turbinate cup bright red-brown and lustrous on the inner surface, and covered by thin ovate light red-brown scales rounded and acute at the apex and pubescent except on their darker colored margins. A tree, usually 50°-C0° high, with a trunk rarely exceeding 3° in diameter, or rarely 100° high, with a long naked stem 3°-4° in diameter, slender tough horizontal or somewhat pendulous branches forming a narrow round-topped picturesque head, and slender branchlets dark green, lustrous, and often suffused with red when they first appear, soon glabrous, light reddish brown or light brown during their first winter and dark brown in their second year. "Winter-buds ovate, acute, about ^' long, obscurely angled and covered by closely inibricated light chestnut-brown lustrous scales erose and often ciliate on the margins. Bark on young stems and on their branches thin, light brown, smooth, and lustrous, becoming on old trunks f -1^-' thick, and slightly divided by irregular shallow fissures into broad ridges covered by close slightly appressed light brown scales somewhat tinged with red. Wood heavy, hard, rather coarse-grained, light brown tinged with red, with thin lighter colored sapwood; occasionally used in construction, and for clapboards and shingles. Distribution. Rich uplands and the fertile bottom-lands of rivers; Lehigh County, Pennsylvania, westward through southern Michigan and Wisconsin to northern Mis- souri and northeastern Kansas, southward to the District of Columbia, and along the Alleg-hanv Mountains to northern Georgia and Alabama, middle Tennessee and north- ern Arkansas; comparatively rare in the east; one of the most abundant Oaks of the lower Ohio basin; probably growing to its largest size in southern Indiana and Illinois. Occasionally planted as an ornamental tree in the northern states, and hardy as far north as Massachusetts. Quercus Leana, Nutt., scattered usually in solitary individuals from the District of Columbia and western North Carolina to southern Michigan, central and northern Illinois and southeastern Missouri, is believed to be a hybrid between this species and Quercus velutina. ** Leaves persistent until the appearance of those of the following year. 19. Quercus hypoleuca, Engelm. Leaves lanceolate or oblong-lanceolate to elliptical, occasionally somewhat fal- cate, acute and often apiculate at the apex, wedge-shaped or rounded or cordate at the narrow base, entire or repandly serrate above the middle, with occasionally small minute rigid spinose teeth, or on vigorous shoots serrate-lobed, with oblique acute lobes, when they unfold light red, covered with close pale pubescence above and coated below with thick hoary tomentum, at maturity thick and firm, dark yellow- green and lustrous on the upper surface, covered on the lower with thick silvery white or fulvous tomentum, 2'-4' long, ^'-1' wide, with thickened revolute margins, turning yellow or brown and falling gradually during the spring after the appear- ance of the new leaves; their petioles stout, flattened, pubescent or tomentose, \'-\' long. Flo"wers : staminate in slender aments 4'-5' long; calyx thin and scarious, slightly tinged with red, covered with pale hairs and deeply divided into 4 or 5 J FAGACE^ 253 broadly ovate rounded lobes; anthers acute, apieulate, bright red becoming yellow; pistillate mostly solitary, sessile or short-stalked, their iuvolucral scales and calyx- pi^.2o; lobes thin, scarious, and soft-pubescent; stigmas dark red. Fruit sessile or borne on a stout peduncle ^' long, usually solitary; acorn ovate, acute or rounded at the nar- row hoary-pubescent apex, dark green and often striate when ripe, becoming light chestnut-brown in drying, l'-|' long, the shell lined with white tomentum, inclosed for about one third its length in a turbinate thick cup pubescent on the inner sur- face, and covered by thin broadly ovate light chestnut-brown scales rounded at the apex and clothed, especially toward the base of the cup, with soft silvery pubescence. A tree, usually 20°-30° or sometimes 60^ high, with a tall trunk 10'-15' in diame- ter, slender branches spreading into a narrow round-topped inversely conical head, and stout rigid branchlets coated at first with thick hoary tomentum disappearing during the first winter, becoming light red-brown often covered with a glaucous bloom and ultimately nearly black; frequently a shrub. Winter-buds ovate, obtuse, about I' long, with thin light chestnut-brown scales. Bark |'-1' thick, nearly black, deeply divided into broad ridges broken on the surface into thick plate-like scales. "Wood heavy, very strong, hard, close-grained, dark brown, with thick lighter colored sapwood. Distribution. Scattered but nowhere abundant through Pine forests on the slopes of canons and on high ridges usually from 6000°-7000° above the sea on the moun- tains of western Texas, and of New Mexico and Arizona south of the Colorado plateau; in northern Chihuahua and Sonora. 20. Quercus Wislizeni, A. DC. Live Oak. Leaves narrowly lanceolate to broadly oval, mostly oblong-lanceolate, acute or rounded and generally apieulate at the apex, rounded or truncate or gradually nar- rowed and wedge-shaped at the base, entire, serrulate or serrate or sinuate-dentate, with spreading rigid spinescent teeth, when they unfold thin, dark red, ciliate, and covered with pale scattered stellate hairs, at maturity thick and coriaceous, glabrous and lustrous, dark green on the upper and paler and yellow-green on the lower surface, usually I'-l^' long and about |' wide, with obscure primary veins and con- spicuous reticulate veinlets, gradually deciduous during their second summer and 254 TREES OF NORTH AMERICA autumn; their petioles coated at first with hoary tomentum, usually pubescent or puberulous at maturity, \' to nearly 1' long. Flo"wers: staminate in hairy aments 3'-4' long; calyx tinged with red in the bud, deeply divided into broadly ovate cili- ate glabrous light yellow lobes shorter than the 3-C stamens; pistillate sessile or short-stalked, their involucral scales and peduncle hoary-tomentose. Fruit sessile, short-stalked or occasionally spicate; acorn slender, oblong-oval, abruptly narrowed at the base, pointed and pilose at the apex, |'-1^' long, about ^' wide, light chestnut- brown, often striate, the shell lined with a scanty coat of pale tomentum, more or less inclosed in the thin turbinate sometimes tubular cup ^-1' deep, or rarely cup-shaped and shallow, light green and puberulous within, and covered by oblong- lanceolate light brown closely imbricated thin scales, sometimes towards its base thickened and rounded on the back, usually pubescent or puberulous, especially above the middle, and frequently ciliate on the margins. A tree, usually 70°-80° high, with a short trunk 4°-6° in diameter, stout spread- ing branches forming a round-topped head, and slender rigid branchlets coated at first with hoary tomentum or covered with loose scattered stellate pubescence, puber- ulous or glabrous and rather light brown daring their first season, gradually grow- ing darker in their second year; usually much smaller and sometimes reduced to an intricately branched shrub, with numerous stems only a few feet tall. Winter- buds ovate or oval, acute, Y~\' ^^^S^ with closely imbricated light chestnut-brown ciliate scales. Bark on young trees and large branches thin, generally smooth and light-colored, becoming on old trunks 2'-3' thick, and divided into broad rounded often connected ridges separating on the surface into small thick closely appressed dark brown scales slightly tinged with red. Wood heavy, very hard, strong, close- grained, light brown tinged with red, with thick lighter colored sapwood; sometimes used for fuel. Distribution. Lower slopes of Mt. Shasta southward through the coast region of California to the Santa Lucia Mountains, and to Santa Rosa and Santa Cruz Islands, and along the slopes of the Sierra Nevada to the Tejon Pass; as a shrub on the desert slopes of the San Bernardino, San Jacinto and Cuyamaca mountains, and on San Pedro Martir in Lower California; nowhere common as a tree, but most abundant and of its largest size in the valleys of the coast region of central California at some FAGACE^ 255 distance from the sea, and on the foothills of the Sierra Nevada; very common as a shrub in the canons of the desert slopes of the mountains of southern California; near the coast and on the islands small and mostly shrubby. Quercus Morehus, Kell., a supposed hybrid between this species and Quercus Cali- fornica, occurs in Lake County, California. 21. Quercus myrtifolia, "Willd. Scrub Oak. Leaves oval to oblong-obovate, acute and apiculate or broad and rounded at the apex, gradually narrowed and wedge-shaped or broad and rounded or cordate at the base, entire, with much thickened revolute sometimes undulate margins, or on vigorous shoots sinuate-dentate and lobed above the middle, when they unfold, thin, dark red, coated below and on the petioles with clammy rusty tomentum and covered above with stellate pubescence, at maturity thick and coriaceous, lustrous, dark green, glabrous, and conspicuously reticulate-venulose on the upper surface, paler, yellow-green, or light orange-brown, glabrous or pubescent, on the lower surface, with tufts of rusty hairs in the axils of the veins, \'-2' long and \'-V wide, falling gradually during their second year; their petioles stout, pubescent, yellow, rarely more than \' long. Flowers: staminate in hoary stellate pubescent aments V-l\' long; calyx coated on the outer surface with rusty hairs and divided into 5 ovate acute thin segments shorter than the 2 or 3 stamens; pistillate sessile or nearly sessile, solitary or in pairs, their involucral scales tomentose and tinged with red. Fruit solitary or in pairs, sessile or short-stalked; acorn subglobose or ovate, acute, \'-\' long, dark brown, lustrous and often striate, puberulous at the apex, the shell lined with a thick coat of rusty tomentum, inclosed for one fourth to one third its length in a saucer-shaped or turbinate cup light brown and puberulous within, and covered by closely imbricated broad ovate light brown pubescent scales ciliate on the margins and rounded at their broad apex. A slender tree, rarely 20° high, with a trunk 4'-5' in diameter, with short spread- ing branches and slender branchlets coated at first with a thick pale fulvous tomen- tum of articulate hairs usually persistent during the summer, light brown more or less tinged with red or dark gray, and pubescent or puberulous during their first winter, becoming darker and glabrous in their second season; more often au intri- 256 TREES OF NORTH AMERICA cately branched shrub, with slender rigid stems 3°-4° or rarely 15°-20° high and l'-3' in diameter. Winter-buds ovate or oval, gradually narrowed to the acute apex, with closely imbricated dark chestnut-brown slightly puberulous scales. Bark thin and smooth, becoming near the ground dark and slightly furrowed. Distribution. Dry sandy ridges on the seashore and islands from South Carolina to eastern Florida and from the shores of Bay Biscay ne to eastern Louisiana; most abundant on the islands off the coast of Alabama and Mississippi, often covering large areas with low impenetrable thickets; probably only arborescent near the mouth of the Appalachicola River, Florida. 22. Quercus agrifolia, N^e. Live Oak. Encina. Leaves oval, orbicular or oblong, rounded or acute and apiculate at the apex, rounded or cordate at the base, entire or sinuate-dentate, with slender rigid spinose teeth, when they unfold tinged with red and coated with caducous hoary tomentum, at maturity subcoriaceous, convex, dark or pale green, dull and obscurely reticulate riQ.2(Dg above, paler, rather lustrous, glabrous, or stellate-pubescent below, with tufts of rusty hairs in the axils of the principal veins, or sometimes covered above with stel- late hairs and coated below with thick hoary pubescence, varying from |'-4' long and from ^'-3' wide, with thickened strongly revolute margins, falling gradually during the winter and early spring; their petioles stout or slender, pubescent or glabrous, ^'-V long. Flowers: staminate in slender hairy aments 3'-4' long; calyx bright pnrple-red in the bud, sometimes furnished with a tuft of long pale hairs at the apex, glabrous or glabrate, divided nearly to the base into 5-7 ovate acute segments reddish above the middle; pistillate sessile or short-stalked, their involucral scales bright red and covered with thick hoary tomentum, or glabrous or puberulous; stigmas bright red. Fruit sessile or nearly so, solitary or in few-fruited clusters; acorn elongated, ovate, abruptly narrowed at the base, gradually narrowed to the acute puberulous apex, light chestnut-brown, f '-1^ long, ^-f ' broad, the shell lined with a thick coat of pale tomentum, inclosed for one third its length or only at the base in a thin turbinate light brown cup coated on the inner surface with soft pale silky pubescence, and covered by thin papery scales rounded at the narrow apex, and slightlv puberulous, especially toward the base of the cup. FAGACE^ 257 A tre?, occasionally 80°-90° high, with a short trunk 3°-4° or rarely 6°-7° in diameter, dividing a few feet above the base into numerous great limbs often resting on the ground and forming a low round-topped head frequently 150° across, and slender dark gray or brown branchlets tinged with red, coated at first with hoary toraentum persistent until the second or third year; or sometimes the trunk, rising to the height of 30*^ or 40°, is crowned by a narrow head of small branches; often much smaller; frequently shrubby in habit, with slender stems only a few feet high. Winter-buds globose and usually about Jg' long, or ovate-oblong, acute, and some- times on vigorous shoots nearly ^' in length, with thin broadly ovate closely imbri- cated light chestnut-browai glabrous or pubescent scales. Bark of young stems and branches thin, close, light brown or pale bluish gray, becoming on old trunks 2'-3' thick, dark brown slightly tinged with red, and divided into broad rounded ridges separating on the surface into small closely appressed scales. "Wood heavy, hard, close-grained, very brittle, light brown or reddish brown, with thick darker colored sapwood; valued and largely used for fuel. Distribution. Usually in open groves of great extent from Mendocino County, California, southward through the coast ranges and islands to Mt. San Pedro Martir, Lower California; less common at the north; very abundant and of its largest size in the valleys south of San Francisco Bay; frequently covering with semiprostrate and contorted stems the sand dunes on the coast in the central part of the state; in southwestern California the largest and most generally distributed Oak-tree between the mountains and the sea, often covering low hills and ascending to elevations of 2800° in the caiions of the San Gorgonio Pass. Occasionally cultivated as an ornamental tree in temperate western and southern Europe. ** Stamens usually 6-8 ; stigmas dilated ; abortive ovules basal or lateral • leaves persistent. 23. Quercus chrysolepis, Liebm. Live Oak. Maul Oak. Leaves oblong-ovate to elliptical, acute or cuspidate at the apex, cordate, rounded or wedge-shaped at the base, mostly entire on old trees or often dentate or sinuate- h^- ^09 dentate on young trees, with 1 or 2 or many spinescent teeth, the two forms often appearing together on vigorous shoots, clothed when they unfold with a thick tomen- 258 TREES OF NORTH AMERICA turn of fulvous articulate hairs soon deciduous from the upper and more gradually from the lower surface, at maturity thick and coriaceous, bright yellow-green and glabrous above, more or less fulvous-tomentose below during their first year, ulti- mately becoming glabrate and bluish white, 1'^' long, |'-2' wide, with thickened revolute margins; deciduous during their third and fourth years; their petioles slender, yellow, rarely ^' long. Fio"wers: staminate in slender tomentose aments 2'-4' long; calyx light yellow, pubescent, divided usually into 5-7 broadly ovate acute ciliate lobes often tinged with red above the middle; pistillate sessile or subsessile or rarely in short few-flowered spikes, their broadly ovate involucral scales coated with fulvous tomentum; stigmas bright red. Fruit usually solitary, sessile or short-stalked; acorn oval or ovate, acute or rounded at the full or narrow slightly puberuious apex, light chestnut-brown, i -2' long and about as broad, the shell lined with a thin coat of loose tomentum, with abortive ovules scattered irregu- larly over the side of the seed, inclosed only at the base in a thin hemispherical or in a thick turbinate broad-rimmed cup pale green or dark reddish brown within, and covered by small triangular closely appressed scales, with short free tips clothed with hoary pubescence, or often hidden in a dense coat of fulvous tomentum. A tree, usually not more than 40°-50° high, with a short trunk 3°-5° in diameter, dividing into great horizontal limbs sometimes forming a head 150° across, and slender rigid or flexible branchlets coated at first with thick fulvous tomentum, becoming during their first winter dark brown somewhat tinged with red, tomentose, pubescent, or glabrous, and ultimately light brown or ashy gray; occasionally in sheltered canons producing trunks 8°-9° in diameter; on exposed mountain sides forming dense thickets 15°-20° high; and on high subalpine slopes a low prostrate shrub (var. vaccinifolia, Engelm.), with small leaves and acorns and thin shallow cups covered by thin red-brown slightly pubescent scales. Winter-buds broadly ovate or oval, acute, about ^ long, with closely imbricated light chestnut-brown usually puberuious scales. Bark f '-1^' thick, light or dark gray-brown tinged with red, and covered by small closely appressed scales. "Wood heavy, very strong, hard, tougli, close-grained, light brown, with thick darker colored sap wood; used in the manufacture of agricultural implements and wagons. Distribution. Southern Oregon, along the California coast ranges and the western slopes of the Sierra Nevada to the San Bernardino and San Jacinto mountains, and on Mt. San Pedro Martir in Lower California; on the high summits of the moun- tain ranges of southern Arizona, New Mexico, and northern Sonora, and here usually small or shrubby; of its largest size in the canons of the coast ranges of central California and on the foothills of the Sierra Nevada, ascending to eleva- tions of 8000°-9000° above the sea; in its Alpine shrubby form covering great areas with dense thickets; near the southern boundary of California usually shrubby, with rigid branches, rigid coriaceous oblong or semiorbicular spinose-dentate leaves, sub- sessile or pedunculate fruit, with ovate acute acorns 1-1^' long, their shell lined with thick or thin pale tomentum, and purple cotyledons (Q. chrysolepis, var. Pal- meri, Engelm.). 24. Quercus tomentella, Engelm. Leaves oblong-lanceolate, acute, sometimes cuspidate or occasionally rounded at the apex, broad and rounded or gradually narrowed and abruptly wedge-shaped at the base, remotely crenate-dentate, with small remote spreading callous tipped teeth, or entire, when they unfold light green tinged with red, covered above with scat- FAGACEJE 259 tered pale stellate hairs and below and on the petioles with thick hoary tomentum, at maturity thick and coriaceous, dark green, glabrous and lustrous on the upper surface, pale and covered with stellate hairs on the lower surface, 2'-4' long, l'-2' wide, with thickened strongly revolute margins, and pubescent midribs, gradually deciduous during their third season; their petioles stout, pubescent, about ^' long. Flo"wers: staminate in pubescent aments 2^'-14' long, calyx light yellow, stellate- pubescent, divided iuto 5-7 ovate acute lobes; pistillate subsessile or in few-flowered hc,.2/0 spikes on short or elongated pubescent peduncles, their involucral scales like the calyx coated with stellate hairs; stigmas red. Fruit subsessile or short-stalked; acorn oval, broad at the base, full and rounded at the apex, about 1^' long and f wide, inclosed only at the base in a cup-shaped shallow cup thickened below, light brown and pubescent on the inner surface, and covered by thin ovate acute scales, with free chestnut-brown tips more or less hidden in a thick coat of hoary tomentum. A tree, 30°-4:0°, or occasionally 60° high, with a trunk l°-2° in diameter, spread- ing branches forming a shapely round-topped head, and slender branchlets coated at first with hoary tomentum, becoming light brown tinged with red or orange color. Winter-buds ovate, acute or obtuse, nearly y long, with many loosely imbricated light chestnut-brown scales more or less clothed with pale pubescence. Bark thin, reddish brown, broken into large closely appressed scales. Wood heavy, hard, close-grained, compact, pale yellow-brown, with lighter colored sapwood. Distribution. Deep narrow canons and high wind-swept slopes of Santa Rosa, Santa Cruz, and Santa Catalina islands, California; on Guadaloupe Island off the coast of Lower California. 2. Stamens usually 6-8 ; stigmas dilated ; fruit maturing at the end ofthejirst season; shell of the acorn glabrous on the inner surface Qioary-tomentose in J/J) ; abortive ovules basal. White Oaks. *Leaves or their lobes usually without bristle tips except on vigorous shoots. -i-Leaves deciduous in their first autumn or winter. ++Leaves lyrate or sinuate-pinnatifd, rarely entire. 25. Quercus alba, L. White Oak. Leaves obovate-oblong, acute or rounded at the apex, gradually narrowed and wedge-shaped at the base, divided into usually 7 oblique broad or narrow mostly 260 TREES OF NORTH AMERICA entire lobes, the lateral lobes sometimes slightly lobed, when they unfold bright red above, pale below and coated with soft pubescence, soon becoming silvery white and very lustrous, at maturity thin, firm, glabrous, bright green and lustrous or dull above, pale or glaucous below, 5'-9' long, 2'-^' broad, with stout bright yellow mid- ribs, conspicuous primary veins, turning late in the autumn deep rich vinous red, gradually withering and sometimes remaining on the branches nearly through the winter; their petioles stout, glabrous, ^' V long. FIo^vers: staminate in hirsute or nearly glabrous aments 2|'-3' long; calyx bright yellow and pubescent, with acute lobes; pistillate bright red, their involucral scales broadly ovate, hirsute, about as long as the ovate acute calyx-lobes. Fruit sessile or raised on a slender peduncle l'-2' long, the two forms sometimes appearing on the same branch; acorn ovoid to oblong, rounded at the apex, lustrous, |' long, green when fully grown, becoming light chestnut-brown, inclosed for about one fourth its length in the cup-shaped cup p/(7.^// coated with pale or light brown tomentum, its scales at the base much thickened, united and produced into short obtuse membranaceous tips, and thinner toward the rim of the cup. A tree, 80°-100° high, with a trunk 3°-4° in diameter, tall and naked in the forest, short in the open, and surmounted by a broad round-topped head of stout limbs spreading irregularly, small rigid branches, and slender branchlets at first bright green, often tinged with red, and coated with a loose mass of long pale or ferrugine- ous deciduous hairs, reddish brown during the summer, bright red and lustrous or covered with a glaucous bloom during their first winter, becoming ultimately ashy gray. "Winter-buds broadly ovate, rather obtuse, dark red-brown, about ^' long. Bark light gray slightly tinged with red or brown, or occasionally nearly white, broken into thin appressed scales, becoming on old trunks sometimes 2' thick and divided into broad flat ridges. "Wood strong, very heavy, hard, tough, close-grained, durable, light brown, with thin light brown sap wood; used in shipbuilding, for con- struction and in cooperage, the manufacture of carriages, agricultural implements, baskets, the interior finish of houses, cabinet-making, for railway-ties and fences, and largely as fuel. FAGACE^ 261 Distribution. Sandy plains and gravelly ridges, rich uplands, intervales, and moist bottom-lauds, sometimes forming nearly pure forests; southern Maine to southwestern Quebec, westward through southern Ontario, the lower peninsula of Michigan, and southern Minnesota to southeastern Nebraska and eastern Kansas, and southward to northern Florida and the valley of the Brazos River, Texas; most abundant and of its largest size on the western slopes of the southern Alleghany Mountains, and on the bottom-lands of the lower Ohio basin. 26. Quercus lobata. Nee. White Oak. Valley Oak. Leaves oblong to obovate, deeply 7-11 obliquely lobed, rounded at the narrowed apex, narrowed and wedge-shaped or broad and rounded or cordate at the base, the lateral lobes obovate, obtuse or retuse, or ovate and rounded, thin, 21-3' or rarely 4' long, l'-2' broad, dark green and stellate-pubescent above, pale and pubescent below, with stout pale midribs, and conspicuous yellow veins running to the slightly thickened and revolute margins; their petioles stout, hirsute, 1'-^' long. Flowers: staminate in hirsute aments 2'-3' long; calyx light yellow and divided into 6 or 8 acute pubescent ciliate lobes; pistillate solitary, sessile or rarely in elongated few- flowered spikes, their involucral scales broadly ovate, acute, coated with dense pale tomentum, about as long as the narrow calyx-lobes. Fruit solitary or in pairs, nearly sessile; acorn conical, elongated, rounded or pointed at the apex, 1^-2^^' long. r bright green and lustrous when fully grown, becoming bright chestnut-brown, usu- ally inclosed for about one third its length in the cup-shaped cup coated with pale tomentum on the outer surface, usually irregularly tuberculate below, all but the much-thickened basal scales elongated into acute ciliate chestnut-brown free tips longest on the upper scales and forming a short fringe-like border to the rim of the cup. A tree, often 100° high, with a trunk generally 3°-4°, but sometimes 10° in diam- eter, divided near the ground or usually 20°-30° above it into great limbs spread- ing at wide angles and forming a broad head of slender branches hanging gracefully in long sprays and sometimes sweeping the ground; less frequently with upper limbs growing almost at right angles with the trunk and forming a narrow rigid head of 262 TREES OF NORTH AMERICA variously contorted erect or pendant branches, and slender branchlets coated at first with short silky canescent pubescence, ashy gray, light reddish brown, or pale orange- brown and slightly pubescent in their first winter, becoming glabrous and lighter colored during their second year. Winter-buds ovate, acute, usually about \' long, with orange-brown pubescent scales scarious and frequently ciliate on the margins. Bark |'-1^' thick and covered by small loosely appressed light gray scales slightly tinged with orange or brown, becoming at the base of old trees frequently 5'-6' thick and divided by longitudinal fissures into broad flat ridges, broken horizontally into short plates. "Wood hard, fine-grained, brittle, light brown, with thin lighter colored sapwood ; used only for fuel. Distribution. Valleys of western California between the Sierra Nevada and the ocean from the upper Sacramento to the Tejon Pass; most abundant and forming open groves in the central valleys of the state. 27. Quercus Garryaua, Hook. White Oak. Leaves obovate to oblong, pointed at the apex, wedge-shaped or rounded at the base, coarsely pinnatifid-lobed, with slightly thickened revolute margins, coated at first with soft pale lustrous pubescence, at maturity thick and firm or subcoriaceous. f^/(,. 2JJ dark green and lustrous and glabrous above, light green or orange-brown and pubes- cent or glabrate on the lower surface, 4'-6' long, 2'-5' broad, with stout yellow mid- ribs, and conspicuous primary veins spreading at right angles, or gradually diverging from the midrib and running to the points of the lobes, sometimes turning bright scarlet in the autumn; their petioles stout, pubescent, ^'-1' long. Flowers: stami- nate in hirsute aments; calyx glabrous, laciniately cut into ovate acute slightly ciliate or linear-lanceolate much elongated segments; pistillate sessile and coated with pale tomentum. Fruit sessile or short-stalked; acorn oval to slightly obovate and obtuse, I'-l^' long and ^-1' broad, inclosed at the base in a shallow cup-shaped or slightly turbinate cup puberulous and light brown on the inner surface, pubescent or tomen- fose on the outer, and covered by ovate acute scales with pointed and often elon- gated tips, thin, free, or sometimes thickened and more or less united toward the base of the cup, decreasing from below upward. A tree, usually 60°-70° or sometimes nearly 100° high, with a trunk 2°-3° in FAGACEJS 263 diameter, stout ascending or spreading branches forming a broad compact head, and stout branchlets coated at first with thick pale rufous pubescence, pubescent or tomentose and light or dark orange color during their first winter, becoming gla- brous and rather bright reddish brown in their second year and ultimately gray; or frequently at high elevations, or when exposed to the winds from the ocean, reduced to a low shrub. Winter-buds ovate, acute, ^'-^' long, densely clothed with light ferrugineous tomentum. Bark ^'-V thick, divided by shallow fissures into broad ridges separating on the surface into light brown or gray scales sometimes slightly tinged with orange color. Wood strong, hard, close-grained, frequently exceedingly tough and valuable, light brown or yellow, with thin nearly white sap- wood ; in Oregon and Washington used in the manufacture of carriages and wagons, in cabinet-making, shipbuilding, and cooperage, and largely as fuel. Distribution. Valleys and the dry gravelly slopes of low hills; Vancouver Island and the valley of the lower Fraser E,iver southward through western Washington and Oregon and the California coast-valleys to the Santa Cruz Mountains; rare and local and the only Oak-tree in British Columbia; abundant and of its largest size in the valleys of western Washington and Oregon, and ascending in its shrubby forms to considerable elevations on the western slopes of the Cascade Mountains; abundant in northwestern California; less common and of smaller size southward. 28. Quercus Gambelii, Nutt. White Oak. Shin Oak. Leaves broadly obovate to oblong-lanceolate, rounded at the narrow apex, wedge- shaped or sometimes narrowed and rounded or broad and cordate at the base, variously lobed or pinnatifid, the lobes entire, emarginate, or lobed, when they unfold coated below with thick white tomentum and above with scattered stellate pubes- cence, at maturity thick and firm, glabrous and rarely stellate-pubescent, lustrous and dark yellow-green or dull yellow-green above, and paler and soft-pubescent h(q.2.ia- below, 3'-5' long, l'-5' wide, with prominent pale midribs hirsute below and occa- sionally above, primary veins running to the points of the lobes, secondary veins arcuate and united near the margins, and conspicuous veinlets, turning scarlet or orange-colored in the autumn; their petioles stout, glabrous, \'-^' long. Flowers: staminate in slender hirsute aments ; calyx yellow, divided into 5 or 6 acute lobes; 2G4 TREES OF NORTH AMERICA pistillate bright red, sessile or sliort-stalUtd, solitary or in elongated few-flowered spikes, their invojueral scales ovate, rounded, eoated with soft pale tonientuni, about as long as the acute calyx-lobes. Fruit sessile or pediinetdate; acorn oval, broad at the base, obtuse and rounded or sonietinies narrowed and acute at the apex, usually about I' long and |' wide, frecales closely imbricated in 2 ranks, increasing in size from without inward and gradually passing into the stipules of the lower leaves. Bark V-iy thick, 300 TREES OF NORTH AMERICA light brown or silvery gray, broken on the surface into thick appressed scales, and sometimes roughened by irregular wart-like excrescences or ridges also found on the large branches. Wood heavy, rather soft, not strong, coarse-grained, clear light yellow, with thick lighter colored sapwood; largely used for fencing and in the manufacture of cheap furniture. Distribution. Valley of the St, Lawrence River near Montreal, westward to southern Ontario, and in the United States from the shores of Massachusetts Bay to northwestern Nebraska, North Dakota, southern Idaho, eastern Washington and Oregon, western Washington, Nevada, New Mexico, and southward to the shores of Bay Biscayne and Cape Romano, Florida, and to Missouri and eastern Texas; rare east of the Hudson River, more abundant in western New York and the middle states, and of its largest size on the rich bottom-lands of the lower Ohio basin ; grow- ing usually in rich moist soil and often, especially in the east, on dry gravelly or rocky hillsides; west of the Rocky Mountains, a small tree or shrub rarely 30° high, with thick rigid scabrous reticulate leaves, exceedingly rare and only on the banks of streams. A dwarf shrubby form found usually on the rocky banks of streams with stems 4°-10° tall and small usually rugose leaves is not uncommon in the south Atlantic states, ranging westward to Missouri, Colorado, Utah, and Nevada (var. pumila, Gray). \ Often planted as a shade and ornamental tree in the states between the Mississippi River and the Rocky Mountains and occasionally in the eastern states and in Europe. 2. Celtis Mississippiensis, Bosc. Sugarberry. Hackberry. Leaves ovate to oblong-lanceolate, long-pointed, more or less falcate, unequally rounded or very oblique or unequally wedge-shaped at the base, entire or occasion- ally serrate, with minute incurved teeth, or rarely furnished above the middle with 1 or 2 broad sharp teeth, when they unfold light yellow-green and nearly glabrous or coated with pale pubescence, at maturity firm, smooth, glabrous, dark green on the upper and pale on the lower surface, 3'-4' long, f'-3' wide, with nar- row yellow midribs and slender veins arcuate and united near the margins and con- nected by conspicuous reticulate veinlets; their petioles slender, \'-^' long; stipules linear-strap-shaped, coated with soft white hairs. Flowers on slender hirsute ped- icels; calyx divided into 5 ovate lanceolate glabrous or puberulous scarious lobes ULMACEiE 301 furnished at the apex with tufts of long white hairs. Fruit ovate, \'-^' long, bright orange-red, with thin dry flesh and a smooth light brown nut. A tree, G0°-80° high, with a short trunk 2°-3° in diameter, spreading sometimes pendulous branches forming a broad and often graceful head, and branchlets light green, glabrous or covered with pale pubescence when they first appear, bright red- dish brown, rather lustrous, and marked by oblong pale lenticels and narrow elevated horizontal leaf-scars showing the ends of 3 fibro-vascular bundles during their first winter; often much smaller and sometimes shrubby. Winter-buds ovate, pointed, Yq'-^' long, with chestnut-brown puberulous scales. Bark ^'-f thick, light blue- green, and covered with prominent excrescences. Wood rather soft, not strong, close-grained, light yellow, with thick lighter colored sap wood; confounded com- mercially with the wood of Celtis occidentalis and used for the same purposes. Distribution. Rich bottom-lands and the banks of streams or occasionally dry limestone hills from southern Indiana and Illinois through Kentucky, Tennessee, and Alabama to the shores of Bay Biscayne, Florida, and through Missouri, Arkansas, and Texas to Nuevo Leon; also in Bermuda; very abundant and of its largest siiie in the basin of the Lower Ohio River; the common species in central and western Kentucky and Tennessee; rare in the Gulf states; exceedingly common west of the Mississippi River, especially in Arkansas, Louisiana, and Texas, and in Nuevo Leon. In Texas gradually passing into a form with thicker and more conspicuously reticu- late-venulose leaves. This is Celtis Mississippiensis, var. reticulata, Sarg. Leaves broadly ovate, acute or acuminate, rounded or cordate and usually oblique and very unequal at the base, entire or rarely furnished above the middle with few large teeth, thick and coriaceous, dark green and glabrous or scabrate above, pale f-i«,. ^^j yellow-green, glabrous or hirsute, and covered by a network of prominent yellow veinlets below. Fruit Y-^' long, dark orange-red. A small bushy tree, 40°-o0° high, with stout branches, a short trunk covered with smooth blue-gray bark roughened by prominent excrescences usually interrupted or broken into short lengths; in arid regions often a low shrub. Distribution. Texas, in the neighborhood of Dallas, southward to the Rio 302 TREES OF NORTH AMERICA Grande, and westward through New Mexico and Arizona to southern Utah and Kevada, and the western rim of the Colorado Desert in California; and in Lower California; in eastern Texas usually on dry limestone hills; westward only near the banks of streams in mountain canons. XII. MORACEiE. Trees or shrubs, with milky juice^ scaly or naked buds, and stalked alter- nate simple leaves with stipules. Flowers monoecious or dioecious, in ament- like spikes or heads on the outside of a receptacle or on the inside of a closed receptacle ; calyx of the staminate flower 3 or 4-lobed or parted ; stamens 1-4 inserted on the base of the calyx ; calyx of the pistillate flower of 3—5 partly united sepals ; ovary 1-2 celled ; styles 1 or 2 ; ovule pendulous. Fruits dru- paceous, inclosed in the thickened calyx of the flower and united into a com- pound fruit. The Mulberry family is widely distributed with fifty-four genera confined largely to the warmer parts of the world. Three genera only, all arborescent, are indigenous in North America, although Broussonetia papyri- fera, Vent., the Paper Mulberry, a tree related to the Mulberry and a native of eastern Asia, and the Hop and the Hemp are more or less generally natural- ized in the eastern and southern states. CONSPECTUS OF THE NORTH AMERICAN GENERA. Flowers on the outside of the receptacle ; buds scaly. Flowers in ament-like spikes; compound fruit oblong and succulent. 1. Morus. Staminate flowers racemose, the pistillate capitate ; compound fruit dry and globose. 2. Toxylon. Flowers on the inside of a closed receptacle ; buds naked ; compound fruit subglobose to ovoid, succulent. 3. Ficus. 1. MORUS, L. Mulberry. Trees or shrubs, with slender terete unarmed branches prolonged by one of the upper axillary buds, scaly bark, and fibrous roots. Winter-buds covered by ovate scales closely imbricated in 2 ranks, increasing in size from without inward, the inner accrescent, marking in falling the base of the branch with ring-like scars. Leaves conduplicate in the bud, alternate, serrate, entire or 3-lobed, 3-5-nerved at the base, membranaceous or subcoriaceous, deciduous; stipules inclosing their leaf' in the bud, lateral, lanceolate, acute, caducous. Flowers monoecious or dioecious, the staminate and pistillate on different branches of the same plant or on different plants, minute, vernal, in pedunculate clusters from the axils of caducous bud-scales or of the lower leaves of the year, the staminate in elongated cylindrical spikes; calyx deeply divided into 4 equal rounded lobes; stamens 4, inserted opposite the lobes of the calyx under the minute rudimentary ovary; filaments filiform, incurved in the bud, straightening elastically and becoming exserted; anthers attached on the back below the middle, introrse, 2-celled, the cells reniform, attached laterally to the orbicular connective, opening longitudinally; the pistillate sessile, in short- oblong densely flowered spikes; calyx 4-parted, the lobes ovate or obovate, thick- ened, often unequal, the 2 outer broader than the others, persistent; ovary ovoid flat, sessila, included in the calyx, crowned by a central style divided nearly to the base into 2 equal spreading filiform villous white stigmatic lobes; ovule suspended from the apex of the cell, campylotropous; micropyle superior. Drupes ovate or HORACES 303 obovate, crowned with the remnants of the styles, inclosed in the succulent thick- ened and colored perianth of the tiower and more or less united into a more or less juicy compound fruit (syncarp); flesh subsucculent, thin; walls of the nutlet thin or thick, crustaceous. Seed oblong, pendulous; testa thin, membranaceous; hilum minute, apical; embryo incurved in thick fleshy albumen; cotyledons oblong, equal; radicle ascending, incumbent. Morus with six or seven species is confined to eastern temperate North America, the elevated regions of Mexico, Central America and western South America, western Asia, Indo-China, Japan, and the high mountains of the Indian Archipelago. Two species occur in North America. The most valuable species, Morus alba, L., a native of northern China and Japan, and largely cultivated in many countries for its leaves, which are the best food of the silkworm, has been planted in large quantities in the eastern United States; and Morus nigra, L., probably a native of Persia, has been introduced into the southern and Pacific states for its large dark-colored juicy fruit. Morus produces straight-grained durable light brown or orange-colored valuable wood, and sweet acidulous and refreshing fruits. Morus is the classical name of the Mulberry-tree. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Leaves coated below with pale pubescence ; lobes of the stigma long- ; fruit oblong", dark purple. 1. M. rubra (A, C). Leaves glabrous or pubescent on the lower surface ; lobes of the stigma short ; fruit sub- globose or short ovate, nearly black. 2. M. celtidifolia (C, E, H). 1. Morus rubra, L, Red Mulberry. Leaves ovate, oblong-ovate or semiorbicular, \l£i the southern Alleghany Mountains from North Carolina and southeastern Kentucky to middle and western Florida, southern Alabama, northern Mississippi, and the valley of the Pearl River, Louisiana, and in central Arkansas. Occasionally cultivated as an ornamental tree in the eastern states, and in the temperate countries of Europe; hardy as far north as eastern Massachusetts. 5. Magnolia tripetala, L. Umbrella-tree. Elkwood. Leaves obovate-lanceolate, narrowed at the ends, acute or bluntly pointed at the apex, when they unfold nearly glabrous above, covered below with thick silky caducous tomentum, at maturity membranaceous, glabrous, 18'-20' long, 8'-10' wide, with thick prominent midribs and numerous slender primary veins, falling in the autumn with little change of color; their petioles stout, V-1^' long. Flo"wers on slender glabrous peduncles covered with a glaucous bloom and 2'-2^' long, cup- shaped, creamy white, 4'-5' deep; sepals narrowly obovate, 5'-6' long, 1^', wide, thin, light green, becoming reflexed; petals 6 or 9, concave, coriaceous, ovate, short- pointed, erect, those of the outer row 4—5' long and sometimes 2' wide, much longer and broader than those of the inner rows; filaments bright purple. Fruit ovate, glabrous, 2^'-4' long, rose color when fully ripe; seeds obovoid, ^' long. A tree, 30°— 40° high, with a straight or often inclining trunk rarely more than 18' in diameter, stout irregularly developed contorted branches wide-spreading nearly at right angles with the stem or turning up toward the ends and growing parallel with it, and stout brittle branchlets green during their first season, becoming in their first winter bright reddish brown, very lustrous, and marked by occasional minute scattered pale lenticels, and by the large oval horizontal slightly raised leaf-scars, with scattered fibro-vascular bundle-scars, and brown during their second and gray during their third season; generally much smaller, sometimes surrounded by several stems springing from near the base of the trunk and growing into a large bush 322 TREES OF NORTH AMERICA surmounted by the head of the central stem. "Winter-buds: terminal, acute or bluntly pointed, purple, glabrous, covered with a glacous bloom, usually about V long; axillary globose, the color of the branch. Bark i' thick, light gray, smooth, and marked by many small bristle-like excrescences. Wood light, soft, close- grained, not strong, light brown, with creamy white sapwood of 35-40 layers of annual growth. Distribution. Deep rather moist rich soil along the banks of mountain streams or the margins of swamps, and widely distributed in the Appalachian Mountain region, but nowhere very common; valley of the Susquehanna River, Pennsylvania, to southern Alabama, middle Kentucky and Tennessee, northeastern Mississippi, and in central and southwestern Arkansas, extending in the south Atlantic states nearly to the coast; of its largest size in the valleys along the western slopes of the Great Smoky Mountains in Tennessee. Often cultivated as an ornamental tree in the northern States, and in northern and central Europe. 6. Magnolia Fraseri, Walt. Mountain Magnolia. Long-leaved Cucumber- tree. Leaves obovate-spatulate, acute or bluntly pointed at the apex, cordate and con- spicuously auriculate at the base, bright green and often marked on the upper surface when young with red along the principal veins, glabrous, 10'-12' long, 6'-7' wide, or on vigorous young plants sometimes of twice that size, falling in the autumn without change of color; their petioles slender, 3'-4' long. Flowers on stout glabrous pedun- cles covered with a glaucous bloom and I'-l^ long, creamy white, sweetly scented, 8'-10' in diameter; sepals narrowly obovate, rounded at the apex, 4'-5' long, de- ciduous almost immediately after the opening of the bud, shorter than the 6 or 9 obovate acuminate membranaceous spreading petals contracted below the middle, those of the inner rows narrower and conspicuously narrowed below. Fruit oblong, glabrous, bright rose-red when fully ripe, 4'-5' long, l^'-2' wide, the mature carpels ending in long subulate persistent tips; seeds obovoid, compressed, |' long. MAGNOLIACE^ 323 A tree, 30°-40^ high, with a straight or inclining trunk 12'-18' in diameter, often undivided for half its length or separating at the ground into a number of stout diver- ging stems, regular wide-spreading or more or less contorted and erect branches, and stout brittle branchlets soon becoming bright red-brown, lustrous, marked by numer- ous minute pale lenticels and in their first winter by the low horizontal leaf-scars with crowded compressed fibro- vascular bundle-scars, and grayish in their second year. Winter-buds: terminal, glabrous, purple, l^'-2' long, l' wide; axillary, minute, and obtuse. Bark rarely more than ^ thick, dark brown, smooth, covered by small excrescences, or on old trees broken into minute scales. Wood light, soft, close-grained, not strong, light brown, with thick creamy white sap wood of 30-40 layers of annual growth. Distribution. Valleys of the streams of the southern Appalachian Mountains from southwestern Virginia to northern Georgia and Alabama, eastern Tennessee and north- ern Mississippi ; probably most abundant and of its largest size on the upper waters of the Savannah River in South Carolina. Often cultivated as an ornamental plant in the eastern states, and occasionally in the temperate countries of Europe ; hardy as far north as eastern Massachusetts. 7. Magnolia pyramidata, Pursh. Leaves obovate-spatulate, the apex usually abruptly narrowed into a short blunt point, auriculate at the base, with more or less spreading lobes, thin, glabrous, light yellow-green on the upper, pale and glaucous on the lower surface, particularly while young, o^'-8^' long, from 3l'-4^' wide, with slender yellow midribs, numerous slender forked primary veins" and conspicuously reticulate veinlets; their petioles slender, 1^'- 21' in length. Flowers creamy white, 31'-4' in diameter when fully expanded; sepals oblong-obovate, abruptly narrowed to the short pointed apex, much shorter than the oblong-acuminate petals gradually narrowed from near the middle to the base. Fruit oblong, 2'-2^' long, bright rose color, the mature carpels ending in short incurved persistent tips; seeds ovate, compressed. A slender tree, 20°-30° high, with ascending branches, slender branchlets bright red-brown and marked by small pale lenticels and by the small low oval leaf -scars, with many crowded fibro-vascular bundle-scars, later becoming ashy gray. 324 TREES OF NORTH AMERICA Distribution. Low rich soil near the streams of the coast region from southern Georgia through western Florida to southern Alabama. Occasionally cultivated as an ornamental tree in western Europe. 2. LIRIODENDRON, L. Trees, with deeply furrowed brown bitter bark and slender branchlets marked by elevated leaf-scai:s and narrow stipular rings, and compressed obtuse winter-buds, their scales membranaceous stipules joined at the edges, accrescent, strap-shaped, often slightly falcate, oblique at the unequal base, tardily deciduous after the unfold- ing of the leaf. Leaves recurved in the bud by the bending down of the petiole near the middle, bringing the apex of the blade to the base of the bud, sinuately 4-lobed, heart-shaped, truncate or slightly wedge-shaped at the base, truncate at the apex by a broad shallow sinus and minutely apiculate. Flowers appearing after the unfold- ing of the leaves, cup-shaped, conspicuous, inclosed in the bud in a 2-valved stipu- lar membranaceous caducous spathe; sepals spreading or reflexed, ovate-lanceolate, concave, greenish white, early deciduous; petals erect, rounded at the base, early deciduous; filaments filiform, half as long as the linear 2-celled extrorse anthers adnate to the outer face of the connective terminating in a short fleshy point; pistils imbricated on the elongated sessile receptacle into a spindle-shaped column; ovary inserted by a broad base; style narrowly acuminate, laterally flattened, appressed; stigmas short, recurved at the summit; ovules 2, suspended from near the middle of the ventral suture. Fruit a narrow light brown cone formed of the closely im- bricated dry and woody indehiscent carpels consisting of a laterally compressed 4-ribbed pericarp, the lateral ribs confluent into the margins of the large wing-like lanceolate compressed style marked vertically by a thin sutural line, the carpels deciduous when ripe in the autumn from the slender elongated axis of the fruit persistent on the branch during the winter. Seeds suspended, 2 or single by abor- tion; testa thin, coriaceous, and marked b}'^ a narrow prominent raphe; embryo mi- nute at the base of the fleshy albumen, its radicle next the hilum. Liriodendron, widely distributed in North America and Europe during the crusta- ceous period, is now represented by two species, one in eastern North America, the other in central China. Liriodendron, from Xipiov and SevSpov, is descriptive of the lily-like flower. MAGNOLIACE^ 325 1. Liriodendron Tulipifera, L. Yello-w Poplar. Tulip-tree. Leaves dark green and shining on the upper, paler on the lower surface, 5'-6' long and broad, turning clear yellow in the autumn before falling; their petioles slender, angled, 5'-6' long. Flowers l^'-2' deep, on slender peduncles f'-l' long. Fruit 2^'-3' long, about ^' wide, ripening late in September and in October, the mature carpels l'-l-|' long and about ^ wide. A tree, sometimes nearly 200° high, with a straight trunk 8°-10° in diameter, destitute of branches for 80°-100° from the ground, short, comparatively small branches forming a narrow pyramidal, or in old age a broader spreading head, and slender branchlets light yellow-green and often covered with a glaucous bloom dur- ing their first summer, reddish brown, lustrous, and marked by many small pale len- ticels and roughened by the elevated orbicular or semiorbicular leaf-scars marked by numerous small scattered fibro-vascular bundle-scars during their first winter, and dark gray during their third year. Winter-buds dark red covered by a glaucous bloom, the terminal ^' long, much longer than the lateral buds. Bark thin and scaly on young trees, becoming deeply furrowed, brown, and l'-2' thick. Wood light, soft, brittle, not strong, easily worked, light yellow or brown, with thin creamy white sapwood; largely manufactured into lumber used in construction, the interior finish of houses, boatbuilding, and for shingles, brooms, and woodenware. The intensely acrid bitter inner bark, especially of the root, is used domestically as a tonic and stim- ulant, and hydrochlorate of tulipiferine, an alkaloid separated from the bark, pos- sesses the property of stimulating the heart. Distribution. Deep rich rather moist soil on the intervales of streams or on mountain slopes; Rhode Island to southwestern Vermont, and westward to the southern shores of Lake Michigan, southward to northern Florida, southern Alabama and Mississippi, and in southeastern Missouri and northeastern Arkansas; most abundant and of its largest size in the valleys of the lower Ohio basin, and on the lower slopes of the high mountains of North Carolina and Tennessee. Often cultivated as an ornamental tree in the eastern states, and in western »and central Europe. 326 TREES OF NORTH AMERICA XVI. ANGNACE^ffi. Trees or shrubs, with watery juice, slender terete branclilets marked by conspicuous leaf-scars, and Heshy roots. Leaves alternate, condujjlicate in the bud, entire, feather-veined, i)etiolate, without stipules. Flowers i)erfect, soli- tary, axillary or oj)posite the leaves; sej)als 3, valvate in the bud; petals 6, in 2 series, imbricated or valvate in the bud ; stamens numerous, inserted on the subglobose or hemispherical receptacle, with distinct filaments shorter than their lieshy connectives terminating in a broad iruncate glandular ai)pendage ; anthers introrse, 2-celled, opening longitudinally ; pistils inserted on the sum- mit of the receptacle ; ovary 1 -celled ; ovules 1 or many, anatro2)ous. Fruit baccate or compound. Seeds inclosed in an aril ; seed-coat thin, crustaceous, smooth, brown, and lustrous ; albumen ruminate, deeply j^enetrated by the folds of the inner layer of the seed-coat ; embryo minute ; radicle next the hilum. Two of the forty-eight or fifty genera of the Custard-apple family, confined almost exclusively to the tropics and more numerous in the Old World than in the New, occur in North America. CONSPECTUS OF THE NORTH AMERICAN GENERA. Petals imbricated in the bud ; ovules numerous ; fruit developed from one pistil. 1. Asimina. Petals valvate in the bud ; ovule solitary ; fruit developed from several confluent pistils. 2. Anona. 1. ASIMINA, Adans. Trees or shrubs, emitting a heavy disagreeable odor when bruised, with minute buds covered with cinereo-pubescent caducous scales, and branclilets marked by conspicuous leaf -scars. Leaves membranaceous, feather-veined, reticulate-venulose, deciduous. Flowers pedunculate, nodding, purplish, bad-smelling; sepals ovate, smaller than the petals, green, deciduous; petals imbricated in the bud, hypogynous, sessile, ovate or obovate-oblong, reticulate-veined, accrescent, the three exterior alternate with the seJDals, spreading, those of the interior row opposite the sepals, erect, and much smaller than those of the outer row; stamens linear-cuneate, densely packed on the receptacle; filaments shorter than the fleshy connective; anther-cells separated on the connective; pistils sessile on the summit of the receptacle, projecting from the globular mass of stamens; ovary 1-celled; style oblong, slightly recurved toward the apex and stigmatic along the margin; ovules 4-20, horizontal, 2-ranked on the ventral suture, the raphe toward the suture. Fruit baccate, sessile or stipitate, oval or oblong, smooth. Seeds in 1 or 2 ranks, ovate, apiculate, compressed, marked at the base by a large pale hilum. Asimina is confined to eastern North America. Six species are distinguished; of these one is a small tree ; the others are low shrubs of the south Atlantic and Gulf regions. Asimina is from Asiminier, the old colonial name of the French in America for the Pawpaw. 1. Asimina triloba, Dunal. Paw^pa-w. Leaves obovate-lanceolate, sharp-pointed at the apex, gradually and regularly narrowed to the base, when they unfold covered below with short rusty brown cadu- cous tomentum and slightly pilose above, and at maturity light green on the upper surface, pale on the lower surface, 10'-12' long, 4'-6' wide, with prominent midribs ANONACE^ 327 and primary veins. Flo"wers nearly 2' across when fully grown, on stout club- shaped peduncles I'-l^' long and covered with long scattered rusty brown hairs; sepals ovate, acnmiuate, pale green, densely pubescent on the outer surface; petals green at first, covered with short appressed hairs, gradually turning brown and at maturity deep vinous red and conspicuously venulose, those of the outer row broadly ovate, rounded or pointed at the apex, reflexed at maturity above the middle and 2 or 3 times longer than the sepals, those of the inner row pointed, erect, their base concave, glandular, nectariferous, marked by a broad band of a lighter color. Fruit attached obliquely to the enlarged torus, oblong, nearly cylindrical, rounded or some- times slightly pointed at the ends, more or less falcate, often irregular from the imperfect development of some of the seeds, 3'-5' long, V-1^' in diameter, greenish- yellow, becoming when fully ripe in September and October dark brown or almost black, with thick semitransparent sweet and luscious flesh; seeds separating read- ily from the aril, 1' long, 1' broad, ovate, and rounded at the ends. A shrub or low tree, sometimes 35°^0° high, with a straight trunk rarely exceed- ing a foot in diameter, small spreading branches, and slender light brown branchlets t'd- 261 tinged with red and marked by longitudinal parallel or recticulate narrow shallow grooves. Winter-buds acuminate, flattened, i' long, and clothed with rusty brown hairs. Bark rarely more than i' thick, dark brown, marked by large ash-colored blotches, covered by small wart-like excrescences and divided by numerous shallow reticulate depressions. Wood light, soft and weak, coarse-grained, spongy, light yellow shaded with green, with thin darker colored sapwood of 12-20 layers of an- nual growth. The inner bark stripped from the branches in early spring is used by fishermen of western rivers for stringing fish. The sweet and luscious wholesome fruit is sold in large quantities in the cities and towns in those parts of the country where the tree grows naturally. Distribution. Deep rich moist soil; western New Jersey to the northern shores of Lake Ontario, and eastern central Pennsylvania, westward to southern Michigan, eastern Nebraska, eastern Kansas, and southward to middle Florida, and to the val- ley of the Sabine River, Texas; comparatively rare in the region adjacent to the Atlantic seaboard; very common in the Mississippi valley, forming the thick forest undergrowth on rich bottom-lands, or thickets many acres in extent. 328 TREES OF NORTH AMERICA Occasionally cultivated in the eastern states, and precariously hardy as far north as eastern Massachusetts ; interesting as the most northern representative of the Custard-apple family and its only species extending far beyond the tropics. 2. ANONA, L. Trees or shrubs, with glandular often reticulated bark, terete branchlets marked by conspicuous leaf-scars, and often pubescent during their first season. Leaves coriaceous, often glandular-punctate, persistent or tardily deciduous. Flowers nod- ding on bracted peduncles; calyx small, 3-lobed, green, deciduous; petals 6 in 2 series, valvate in the bud, hypogynous, sessile, ovate, concave, 3-angled at the apex, thick and fleshy, white or yellow, the exterior alternate with the sepals, those of the inner row opposite the sepals and often much smaller than those of the outer row; stamens club-shaped, densely packed on the receptacle; filaments shorter than the fleshy connective; anther-cells confluent; pistils sessile on the receptacle, free or united; ovary 1-celled; style sessile or slightly stipitate, oblong; stigmatic on the inner face, ovule 1, erect; raphe ventral. Fruit compound, many-celled, fleshy, ovate or globose, many-seeded. Seeds ovate to elliptical; cotyledons appressed. Of the fifty species of Anona widely distributed in the tropics of the two worlds, a single species reaches the coast of southern Florida. Of exotic species, Aiiona muricata, L., the Soursop, and Anona reticulata, L., of the West Indies, and Anona Cherimolia, Mill., of western tropical America, are now occasionally cultivated as fruit-trees in Florida. Anona is the name given by early authors to the Soursop. 1. Anona glabra, L. Pond Apple. Leaves oval or oblong, acute, tapering or rounded at the base, bright green on the upper, paler on the lower surface, coriaceous, 3'-5' long, l^'-2' broad, with prominent midribs; their stout petioles ^' long. Flowers nodding on short stout f-|G. ^62 peduncles thickened at the ends, opening in April from an ovoid 3-angled bud; calyx 3-lobed, with broadly ovate acute divisions; petals connivent, acute, concave, pale yellow or dirty white, those of the outer row marked on the inner surface near the LAURACE^ 329 base by a bright red spot, and broader and somewhat longer than those of the inner row. Fruit ripening in November, broadly ovate, truncate or depressed at the base, rounded at the apex, 3'-o' long, 2'-3^' broad, light green when fully grown, becom- ing yellow and often marked by numerous dark brown blotches when fully ripe, with a thick elongate fibrous torus and light green slightly aromatic insipid flesh of no comestible value; seeds i' long, slightly obovate, turgid, rounded at the ends, their margins contracted into a narrow wing formed by the thickening of the outer coat. A tree, 30°-4:0° high, with a short trunk often 18' in diameter above the swell of the thickened tapering base sometimes enlarged into spreading buttresses, stout wide-spreading often contorted branches, slender branchlets brown dr yellow during their first season, becoming in their second year brown and marked by small scat- tered wart-like excrescences. Bark ^' thick, dark reddish brown, divided by broad shallow fissures separating on the surface into numerous small scales. Wood light, soft, not strong, light brown streaked with yellow. Distribution. Florida from Cape Malabar to the shores of Bay Biscayne, and on the west coast from Peace Creek to the Caloosa River; in shallow fresh water ponds, on swampy hummocks, or on the borders of fresh water streams flowing from the everglades; of its largest size on the shores of Bay Biscayne near the Miami River, growing in the shade of larger trees; on the Bahama Islands and on several of the Antilles. XVII. LAURACEiE. Aromatic trees and shrubs, with slender terete branchlets, naked or scaly buds, and alternate punctate leaves without stipules. Flowers small, perfect or polygamo-dicecious, yellow or greenish ; calyx 6-lobed, the lobes in 2 series, imbricated in the bud ; corolla 0 ; stamens 9 or 12, inserted on the base of the calyx in 3 or 4 series of 3's, distinct, those of the fourth series sterile; anthers 4-celled, superposed in jDairs, opening from below upward by persistent lids ; ovary 1-celled ; stigma discoid or capitate ; ovule solitary, suspended from the apex of the cell, anatropous. Fruit a 1-seeded berry ; seed without albumen ; testa thin and membranaceous, of 2 coats ; embryo erect ; cotyledons thick and fleshy ; radicle superior, turned toward the hilum, included between thick and fleshy cotyledons. The Laurel family with about forty genera, confined mostly to the tropics, is represented in North America by six genera ; of these four are arborescent. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT GENERA. Leaves entire, persistent ; stamens 12. CaUTc-lobes persistent under the fruit. . 1. Persea. Calyx-lobes deciduous. Flower cyniose in axillary or subterminal panicles. 2. Ocotea. Flowers in axillary many-flowered umbels inclosed before anthesis in an involucre of deciduous scales. 3. Unibellularia. Leaves entire or lobed, deciduous ; stamens 9 ; flowers dicecious in few-flowered drooping- racemes. 4. Sassafras. 1. PERSEA, L. Trees, with naked buds. Leaves revolute in the bud, alternate, scattered, penni- veined, subcoriaceous, rigid, tomentose or rarely glabrous, persistent. Flowers per- 330 TREES OF N OUT 11 AMERICA feet, vernal, in 2 or ^i-Howered c^'ines in short axillary or axillary and terminal panicles on slender peduncles from axils of the leaves of the year, pedicellate, their pedicels bibracteolate near the middle, the lateral flowers of the ultimate divisions of the inflorescence in the axils of small deciduous lanceolate acute bracts; calyx campanulate, divided nearly to the base into 6 lobes, those of the outer series shorter than the others, enlarged and persistent under the fruit; stamens 12, in 4 series, about as long as the inner lobes of the calyx; filaments flattened, longer than the anthers, hirsute, those of the third series furnished near the base with '2 nearly sessile orange-colored glands rounded on the back and slightly 2-lobed on the inner face; anthers ovate, flattened, erect, those of the outer series introrse or subintrorse, those of the third series extrorse or laterally dehiscent, the upper cells rather larger than the lower; staminodia large, sagittate, stipitate, 2-lobed on the inner face, beaded at the apex; ovary sessile, subglobose, glabrous, narrowed into a slender simple style gradually enlarged at the apex into a discoid obscurely 2-lobed stigma. Fruit ripening in the autumn, oblong-obovate to subglobose, more or less fleshy, surrounded at the base by the enlarged spreading persistent lobes of the calyx. Seed globose, pendulous, without albumen; testa thin and membrana- ceous, separable into 2 coats, the outer cartilaginous, grayish brown, the inner gray or nearly white, closely adherent to the thick dark red cotyledons. About fifty species of Persea are distinguished. With the exception of one species of the Canary Islands they are confined to the New World, where they are dis- tributed from the coast region of the southern United States to Brazil and Chili. Persea Persea, Cockerell, the Avocado or Alligator Pear, a native of the Antilles and cultivated for its edible fruit in all tropical countries, is now sparingly naturalized in southern Florida. Many species yield hard dark-colored handsome wood valued in cabinet-making. Persea was the classical name of a tree of the Orient, transferred by Plumier to one of the tropical species of this genus. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Peduncles short ; leaves oblong to oblong-lanceolate, obscurely veined, glabrous ; branch- lets puberulous. 1. P. Borbonia (C). Peduncles elongated ; leaves oval to lanceolate, conspicuously veined, tomentose on the lower surface ; branchlets tomentose. 2. P. pubescens (C). 1. Persea Borbonia, Spreng. Red Bay. Leaves oblong to oblong-lanceolate, entire, often slightly contracted into long points rounded at the apex, gradually narrowed below, when they unfold thin, pilose, and tinged with red, and at maturity thick and coriaceous, bright green and lustrous above, pale and glaucous below, 3'^' long, f -1^' wide, with thickened revo- lute margins, narrow orange-colored midribs, remote obscure primary veins arcuate near the margins, and thin closely reticulated veinlets, unfolding early in the spring, gradually turning yellow a year later and falling during their second spring and summer; their petioles stout, rigid, red-brown, ^'-f long, flattened and somewhat grooved on the upper side, in falling leaving small circular leaf-scars displaying the ends of a single fibro-vascular bundle. FloxArers: peduncles glabrous, \'-V long; calyx pale j^ellow or creamy white, about \' long, with thin lobes ciliate on the mar- gins, the outer broadly ovate, rounded and minutely apiculate, puberulous, about LAURACE.E 331 half as long as the oblong-lauceolate acute lobes of the inner series covered within by long pale hairs. Fruit ^' long, dark blue or nearly black, very lustrous ; flesh thin and dry, not readily separable from the ovate slightly pointed seed, A tree, 60°-70° high, with a trunk 2^-3' in diameter, stout erect branches forming a dense shapely head, thick fleshy yellow roots, and branchlets mauy-augled, light brown, glabrous or coated with pale or rufous pubescence when they first appear, becoming in their second year terete and dark green; usually much smaller. Winter-buds coated with thick rufous tomentum, ^' long. Bark ^'-^' thick, dark red, deeply furrowed and irregularly divided into broad flat ridges separating on the surface into small thick appressed scales. Wood heavy, hard, very strong, rather brittle, close-grained, bright red, with thin lighter colored sapwood of 4 or 5 layers of annual growth; occasionally used for cabinet-making, the interior finish of houses, and formerly in ship and boatbuilding. Distribution. Borders of streams and swamps in rich moist soil, or occasionally in dry sandy loam in forests of the Long-leaved Pine ; coast region from Virginia to the shores of Bay Biscayne and Cape Romano, Florida, along the Gulf coast to the valley of the Brazos River, Texas, and northward through Louisiana to southern Arkansas. 2. Persea pubescens, Sarg. Swamp Bay. Leaves oval or lanceolate, entire, often narrowed toward the apex into long points, gradually narrowed at the base, when they unfold dark red, thin, and tomen- tose, at maturity thick and coriaceous, pale green and lustrous above, pale and pubescent and rusty-tomentose on the midribs and primary veins below, 4'-6' long, I'-iy wide, with thick conspicuous veins and slightly revolute margins, persistent until after the beginning of their second year and then turning yellow and falling gradually; their petioles stout, rusty-tomentose, ^'-f' long. Flowers: peduncles tomentose, 2'-3' long; calyx pale yellow or creamy white, often nearly ^' long, with thick firm lobes coated on the outer surface with rusty tomentum, those of the outer series broadly ovate, abruptly pointed at the apex, pubescent on the inner surface, about half as long as the ovate lanceolate lobes of the inner series, slightly thickened at the apex, and hairy within. Fruit nearly black, |' long. 332 TREES OF NORTH AMERICA A slender tree, occasionally 30°-40° high, with a trunk rarely exceeding a foot in diameter, and stout branclilets terete or slightly angled while young, coated when they first appear with rusty tomentum reduced in their second season to fine pubes- cence persistent until the end of their second or third year. Bark rarely exceeding Y in thickness, dull brown, irregularly divided by shallow fissures, the surface separating into thick appressed scales. Wood heavy, soft, strong, close-grained, orange color streaked with brown, with thick light brown or gray sapwood of 36-40 layers of annual growth. Distribution. Pine-barren swamps, almost to the exclusion of other plants, in the immediate neighborhood of the coast of the south Atlantic and Gulf states from North Carolina to Mississippi. 2. OCOTEA, Aubl. Aromatic trees. Leaves scattered, alternate or rarely subopposite, penniveined, coriaceous, rigid, glabrous or more or less covered with pubescence. Flowers gla- brous or tomentose on slender bibracteolate pedicels from the axils of lanceolate acute minute bracts, in cymose clusters in axillary or subterminal stalked panicles; calyx-tube campanulate, the 6 lobes of the limb nearly equal, deciduous; stamens 12, in 4 series, those of the inner series reduced to linear staminodia, with minute abortive anthers; filaments inserted on the tube of the calyx; those of the outer series opposite its exterior lobes, shorter or sometimes rather longer than the anthers, glabrous or hirsute, furnished in the third series near the base with two conspicuous globose stalked yellow glands; anthers oblong, flattened, 4-celled, introrse in the 2 outer series, extrorse, subextrorse, or very rarely introrse in tlie third series, in the pistillate flower rudimentary and sterile; ovary ovate, glabrous, more or less immersed in the tube of the calyx, gradually narrowed into a short erect style dilated at the apex into a capitate obscurely lobed stigma; in the staminate flower linear-lanceolate, effete or minute, sometimes 0; raphe ventral; micropyle superior. Fruit nearly inclosed while young in the thickened tube of the calyx, exserted at maturity, surrounded at the base by the cup-like truncate or slightly lobed calyx- tube; pericarp thin and fleshy. Seed ovate, pendulous; testa thin, membranaceous. Ocotea with nearly two hundred species is confined principally to the tropical LAURACE^ 333 region of the New World from southern Florida to Brazil and Peru, with Old World representatives in the Canary Islands, South Africa, and the Mascarene Islands. One species grows naturally in Florida. Ocotea produces hard strong durable beautifully colored wood often employed in cabinet-making. The name is derived from the native name of one of the species of Guiana. 1. Ocotea Catesbyaua, Sarg. Leaves oblong-lanceolate, entire, slightly contracted above into long points rounded at the apex, when they unfold thin, membranaceous, light green tinged with red, and sometimes puberulous on the low^er surface, and at maturity thick and coriaceous, dark green and lustrous above, pale below, 3'-6' long, l'-2' wide, with thickened slightly revolute margins, broad stout midribs, slender remote primary veins arcuate and united near the margins and connected by coarsely reticulate conspicuous veinlets; their petioles broad, flat, Y-^' long. Flowers perfect, appear- ing in early summer in elongated panicles, their stalks slender, glabrous, light red, solitary or 2 or 3 together from the axils of the leaves of the year or from those of the previous year, and 3'^' long; calyx nearly 1' across when expanded, pubescent on the outer surface, tomeutose on the inner surface, about twice as long as the stamens; filaments of the 2 outer series slightly hirsute at the base and shorter than their introrse anthers; filaments of the third series as long or longer than their extrorse anthers. Fruit ripening in the autumn, ovate or subglobose, ^' long, lus- trous, dark blue or nearly black, the thickened cup-like tube of the calyx truncate or obscurely lobed and bright red like the thickened pedicels; flesh thin and dry; seed with a thin brittle red-brown coat, the inner layer lustrous on the inner surface and marked by broad light-colored veins radiating from the small hilum; embryo ^' long, light red-brown. A tree, 20°-30° high, with a trunk rarely exceeding 18' in diameter, slender spreading branches forming a narrow round-topped head, and thin terete branchlets glabrous and dark reddish brown when they first appear, soon becoming lighter colored, and in their second year light brown or gray tinged with red and often marked by minute pale lenticels, and in their second or third year by small semi- 334 TREES OF NORTH AMERICA orbicular leaf-scars, displaying a single central fibro-vascular bundle-scar. Bark about ^' thick, dark reddish brown, and roughened on the otherwise smooth surface by numerous small excrescences. Wood heavy, hard, close-grained, rich dark brown, with thick bright yellow sapwood of 20-30 layers of annual growth. Distribution. Shores and islands of Florida south of Cape Canaveral on the east coast and of Cape lioniano on the west coast; comparatively common except on some of the western keys, and most abundant and of its largest size on the rich wooded hummocks adjacent to Bay Biscayne; also in the Bahamas. 3. UMBELLULARIA, Nutt. A pungent aromatic tree, with dark brown scaly bark, slender terete branchlets marked in their second and third years by small semicircular or nearly triangular elevated leaf-scars displaying a horizontal row of minute fibro-vascular bundle-scars, naked buds, and thick fleshy brown roots. Leaves alternate, involute in the bud, lanceolate or ovate-lanceolate, acute or rounded at the narrow apex, cuneate or some- what rounded at the base, entire, with thickened slightly revolute margins, petiolate, coated when they appear on the lower surface with pale soft pubescence and puber- ulous on the upper surface, at maturity thick and coriaceous, dark green and lus- trous above, dull and paler below, with slender light yellow midribs, and remote, obscure, arcuate veins more or less united near the margins, and connected by conspicuous reticulate veinlets. Flowers in axillary stalked many-flowered umbels, inclosed in the bud by an involucre of 5 or 6 imbricated broadly ovate or obovate pointed concave yellow caducous scales, the latest umbels subsessile at the base of terminal leaf-buds; pedicels slender, puberulous, without bractlets, from the axils of obovate membranaceous puberulous deciduous bracts decreasing in size from the outer to the inner; calyx divided almost to the base into 6 nearly equal broadly obovate rounded pale yellow lobes spreading and reflexed after anthesis; stamens inserted on the short slightly thickened tube of the calyx; filaments flat, glabrous, pale yellow, rather shorter than the anthers, those of the third series furnished near the base with 2 conspicuous stipitate orange-colored orbicular flattened glands; anthers oblong, flattened, light yellow, those of the first and second series introrse, those of the second and third series extrorse ; stamens of the fourth series reduced to minute ovate acute yellow staminodia; ovary sessile, ovate, often more or less gib- bous, glabrous, abruptly contracted into a stout columnar style rather shorter than the lobes of the calyx and crowned by a simple capitate discoid stigma. Fruit ovate, surrounded at the base by the enlarged and thickened truncate or lobed tube of the calyx, yellow-green sometimes more or less tinged with purple; pericarp thin and fleshy. Seed ovate, light brown; testa separable into 2 coats, the outer thick, hard, and woody, the inner thin and papery, closely investing the embryo, chestnut-brown, and lustrous on the inner surface. Umbellularia consists of a single species. The generic name, a diminutive of Umbella, relates to the character of the inflo- rescence. 1. Umbellularia Californica, Nutt. California Laurel. Spice-tree. Leaves 2'-5' long, ^-1^' wide, unfolding in winter or early in the spring and continuing to appear as the branches lengthen until late in the autumn, beginning to fade during the summer, turning to a beautiful yellow or orange color and falling one LAUKACE^ 335 by one during their second season, or often remaining on the branches until the sixth year; their petioles ^'-1' long. Flowers appearing in January before the unfolding of the young leaves on pedicels sometimes V in length. Fruit about V long, in pl^ 266 clusters of 2 ur 3, on elongated thickened stalks, persistent on the branch after the fruit ripens and falls late in the autumn; seeds germinating soon after they reach the ground, the fruit remaining below the surface of the soil and attached to the young plant until midsummer. A tree, 80°-90° high, with a trunk 4°-5° in diameter, sometimes tall and straight but usually divided near the ground into several large diverging stems, stout spread- ing branches forming a broad round-topped head, and branchlets light green and coated with soft pale pubescence when they first appear, soon becoming glabrous and yellow-green, and in their second and third years light brown tinged with red; at high elevations above the level of the sea and in southern California much smaller and often reduced to a low shrub. Bark f -1' thick, dark brown tinged with red, separating on the surface into thin appressed scales. Wood heavy, hard, strong, close-grained, light rich brown, with thick lighter colored sap wood of 30-40 layers of annual growth ; the most valuable wood produced in the forests of Pacific North America for the interior finish of houses and for furniture. The leaves yield by distillation a pungent volatile oil, and from the fruit a fat containing umbellulic acid has been obtained. Distribution. Valley of Rogue River, Oregon, through the California coast ranges and along the high western slopes of the Sierra Nevada to the southern slopes of the San Bernardino Mountains up to elevations of 2500°; usually near the banks of watercourses and sometimes on low hills; common where it can obtain an abundant supply of water; most abundant and of its largest size in the rich valleys of southwestern Oregon, forming with the Broad-leaved Maple a considerable part of the forest growth. 4. SASSAFRAS, Nees. Sassafras. Aromatic trees, with thick deeply furrowed dark red-brown bark, scaly buds, slender light green lustrous brittle branchlets containing a thick white mucilaginous pith and marked by small semiorbicular elevated leaf-scars displaying single bori- 336 TREES OF NORTH AMERICA zontal rows of minute fibro-vascular bundle-scars, and stout spongy stoloniferous roots covered by thick yellow bark. Flower-bearing buds terminal, ovate, acute, with 9 or 10 imbricated scales increasing in size from without inward, the 3 outer scales ovate, rounded, often apiculate at the apex, keeled and thickened on the back, pale yellow-green below, dull yellow-brown above the middle, loosely imbricated, slightly or not at all accrescent, deciduous at the opening of the bud, much smaller than the thin accrescent light yellow-green scales of the next rows turning dull red before falling, and obovate, rounded at the apex, cuneate below, concave, coated on the outer surface with soft silky pubescence, glabrous or lustrous on the inner sur- face, reflexed, |' long, nearly ^' broad, tardily deciduous, the 2 inner scales folia- ceous, lanceolate-acute, light green, coated on the outer surface with delicate pale hairs, glabrous on the inner surface, infolding the leaves; sterile and axillary buds much smaller. Leaves involute in the bud, ovate or obovate, entire or often 1-3- lobed at the apex, the lobes broadly ovate, acute, divided by deep broad sinuses, gradually narrowed at the base into elongated slender petioles, feather-veined, with alternate veins arcuate and united or running to the points of the lobes, the lowest parallel with the margins, conspicuously reticulate-venulose, mucilaginous, deciduous, as they unfold light green and somewhat pilose above, with scattered white hairs, ciliate, clothed below with a loose pubescence of long lustrous white hairs, at ma- turity membranaceous, dark dull green above, pale and glabrous or pubescent below. Flowers opening in early spring with the first unfolding of the leaves, the males and females usually on different individuals, in lax drooping few-flowered racemes in the axils of large obovate bud-scales, their pedicles slender, rarely forked and 2-flowered, without bracts, pilose, from the axils of linear acute scarious hairy deciduous bracts, or that of the terminal flower often without bracts; calyx pale yellow-green, divided nearly to the base into narrow obovate concave lobes spreading or reflexed after anthesis, those of the inner row a little larger than the others; stamens 9, inserted in 3 series on the somewhat thickened margin of the shallow concave calyx-tube, those of the outer series opposite its outer lobes; filaments flattened, elongated, light yellow, those of the inner series furnished at the base with 2 conspicuous orange-colored stipitate glands rounded on the back, obscurely lobed on the inner face; anthers oblong, flattened, truncate or slightly emarginate at the apex, rounded or wedge-shaped at the base, orange-colored, introrse, in the female flower reduced to flattened ovate pointed or slightly 2-lobed dark orange-colored stipitate stami- nodia, or occasionally fertile and similar to or a little smaller than those of the staminate flower; ovary ovate, light green, glabrous, nearly sessile in the short tube of the calyx, narrowed into an elongated simple style gradually enlarged above into a capitate oblique obscurely lobed stigma. Fruit an oblong dark blue lustrous berry surrounded at the base by the enlarged and thickened obscurely 6-lobed or truncate scarlet limb of the calyx, raised on a much elongated scarlet stalk thickened above the middle; pericarp thin and fleshy. Seed oblong, pointed, light brown; testa thin, membranaceous, barely separable into 2 coats, the inner coat much thinner than the outer, dark chestnut-brown, and lustrous. Sassafras is confined to temperate eastern North America and to China, where a species, not now distinguishable from the American tree but still imperfectly known, has recently been discovered. Sassafras was first used as a popular name for this tree by the French in Florida. LAURACE^ 337 1. Sassafras Sassafras, Karst. Sassafras. Leaves 4:'-6' long, 2'-4' wide, turning in the autumn delicate shades of yellow or orange more or less tinged with red; their petioles |'-1^' long. Flowers ^ long when fully expanded, in racemes about 2' long. Fruit ripening in September and October, |' long, on stalks l^'-2' in length, separating when ripe from the thick calyx-lobes persistent with the stalks of the fruit on the branches until the beginning of winter. A tree, occasionally 80°-90° high, with a trunk nearly 6° in diameter, short stout more or less contorted branches spreading almost at right angles and forming a narrow usually fiat-topped head, and slender branchlets light yellow-green and coated when they first appear with pale pubescence, soon glabrous, bright green and lustrous, gradually turning reddish brown at the end of two or three years; frequently not more than 40°-o0° tall; at the north generally smaller and often shrubby. Winter-buds ^'-f ' long. Bark of young stems and branches thin, red- dish brown, divided by shallow fissures, becoming on old trunks sometimes 1^' thick, dark red-brown, and deeply and irregularly divided into broad flat ridges sepa- rating on the surface into thick appressed scales. "Wood soft, weak, brittle, coarse- grained, very durable in the soil, aromatic, dull orange-brown, with thin light yellow sap wood of 7 or 8 layers of annual growth; largely used for fence-posts and rails, in the construction of light boats, ox-yokes, and in cooperage. The roots and especially their bark are a mild aromatic stimulant, and oil of sassafras, used to perfume soap and other articles, is distilled from them. Gumbo filet, a powder prepared from the leaves by the Choctaw Indians of Louisiana, gives flavor and consistency to gumbo soup. Distribution. Usually in rich sandy well-drained soil, southern Maine and east- ern Massachusetts, through southern Vermont, southern Ontario, central Michigan, and southeastern Iowa to eastern Kansas and the Indian Territory, and southward to central Florida and the valley of the Brazos River, Texas; in the south Atlantic and Gulf states often taking possession of abandoned fields. Occasionally cultivated in the eastern states as an ornamental tree. 338 TREES OF NORTH AMERICA XVIII. CAPPARIDACE^. Annual or perennial herbs, trees, or shrubs, with acrid often pungent juices, alternate or rarely opposite leaves, and regular or irregular usually perfect flowers in terminal cymes or i-acemes, or solitary, numerous ovules inserted in two rows on each of the two placentas, capsular or baccate 1-celled fruit, and seeds without albumen. A family of thirty-four genera, mostly confined to the warmer parts of the world and widely distributed in the two hemispheres. Of the seven genera which occur in North America only one has an arbores- cent representative. 1. CAPPARIS, L. Trees, with naked buds. Leaves conduplicate in the bud, entire, feather-veined, coriaceous, persistent, without stipules. Flowers regular, in terminal cymes; sepals 4, valvate in the bud, glandular on the inner surface; petals 4, inserted on the base of the short receptacle; stamens numerous, inserted on the receptacle, their filaments free, elongated, much longer than the introrse 2-celled anthers opening longitudi- nally; ovary long-stalked, 2-celled, with 2 parietal placentas; stigmas sessile, orbic- ular; ovules campylotropous. Fruit baccate, siliquiform (in the North American species) separating into 3 or 4 valves. Seeds reniform, numerous, surrounded by pulp; seed-coat coriaceous; embryo convolute; cotyledons foliaceous, fleshy. Capparis, with more than one hundred species, mostly tropical, is found in the two hemispheres, the largest number of species occurring in Central and South America. Two of the West Indian species reach the shores of southern Florida, the most north- ern station of the genus in America; of these one is arborescent. Capparis, from Kdmrapis, the classical name of Capparis spinosa, L., is derived from the Persian kabor, capers, the dried flower-buds of that species. 1. Capparis Jamaicensis, Jacq. Leaves oblong-lanceolate, rounded and emarginate at the apex, slightly revolute, coriaceous, light yellow-green, smooth and lustrous on the upper surface, covered on h^ s6a the lower by minute ferrugineous scales, 2'-3' long, l'-l|' broad, with prominent midribs and inconspicuous primary veins. Flowers 1^ in diameter, opening in Florida HAMAMELIDACE^ 339 in April and May from obtuse or acute 4-angled buds; sepals ovate, acute, lepidote on the outer surface, furnished on the inner with a small ovate gland, recurved when the flower is fully expanded, and about half the size of the roundish white petals turning purple in fading; stamens 20-30, with purple filaments villose toward the base, l^'-2' long; anthers yellow; ovary raised on a slender stipe about 1^' long. Fruit 9'-12' long, terete, sometimes slightly torulose, pubescent-lepidote, the long stalk appearing jointed by the enlargement of the pedicel and torus below the inser- tion of the stipe; seed light brown, 11' long. A small slender shrubby tree, 18°-20° high, with a trunk sometimes o'-6' in diameter, and thin angled branchlets dark gray, smooth or slightly rugose, and cov- ered with minute ferrugineous scales. Bark rarely more than ^' thick, slightly fissured, the dark red-brown surface broken into small irregularly shaped divisions. Wood heavy, hard, close-grained, yellow faintly tinged with red, with lighter colored sapwood of about 15 layers of annual growth. Distribution. Florida coast from Cape Canaveral to the southern keys; generally distributed, but nowhere abundant; common on several of the Antilles. XIX. HAMAMELIDACEiE. Trees or shrubs, with watery juice, slender terete branchlets, naked or scaly buds, and fibrous roots. Leaves alternate, petiolate, stipulate, deciduous. Flowers perfect or unisexual ; calyx 4-parted or 0 ; j^etals 4 or 0 ; stamens 4-8 ; anthers attached at the base, introrse, 2-celled ; ovary inserted in the bottom of the receptacle, 2-celled ; ovules 1 or many, anatropous, suspended from an axile placenta ; micropyle superior ; raphe ventral. Fruit a woody capsule opening at the summit. Seed usually 1 ; embryo surrounded by fleshy albumen ; cotyledons oblong, flat, longer than the terete radicle turned toward the hilum. The Witch Hazel family with eighteen genera is confined to eastern North America, southwestern, southern, and eastern Asia, the Malay Archi- pelago, Madagascar, and South Africa. Of the three North American genera two are arborescent. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT GENERA. Flowers usually unisexual, capitate, without petals, the pistillate without sepals ; capsules consolidated by their bases into a globose head ; seed with a terminal wing- ; leaves pal- mately lobed. 1. Liquidambar. Flowers usually perfect, with calyx and corolla ; carpels not consolidated into a head ; seed without a wing-. 2. Hamamelis. 1. LIQUIDAMBAR, L. Trees, with balsamic juices, scaly bark, terete often winged branchlets, scaly buds, and fibrous roots. Leaves plicate in the bud, alternate, palmately lobed, glandular- serrate, long-petiolate ; stipules lanceolate, acute, caducous. Flowers monoecious or rarely perfect in capitate heads surrounded by involucres of 4 deciduous bracts, the staminate in terminal racemes, the pistillate in solitary long-stalked heads from the axils of upper leaves; staminate flowers without a calyx and corolla; stamens indefinite, interspersed with minute scales; filaments filiform, shorter than the oblong obcordate anthers opening longitudinally; pistillate flowers surrounded by long- awned scales, the whole confluent into globular heads; calyx obconic, its limb short 340 TREES OF NORTH AMERICA or nearly obsolete; stamens usually 4, inserted on tlic summit of the calyx; anthers minute, usually rudimentary or abortive, rarely fertile; ovary partly inferior, of '2 united carpels terminating^ in elongated subulate recurved persistent styles stigmatic on the inner face; ovules numerous. Capsules armed with the hardened incurved elongated styles, free above, septicidally dehiscent at tlie apex, consolidated by their bases into a globose head; pericarp thick and woody; endocarp thin, corneous, lustrous on the inner surface. Seeds usually solitary or 2 by the abortion of many ovules, compressed, angulate; seed-coat opaque, crustaceous, produced into a short membranaceous obovate terminal wing rounded at the oblique apex. Liquidambar with about four species is confined to the eastern United States, to southern and central Mexico, Central America, southwestern Asia, middle and southeastern China, and Formosa. The species produce hard straight-grained hand- some dark-colored wood and valuable balsamic exudations. Liquid storax, an opaque grayish brown resin, is derived from Liquidambar orientalis, Mill., a native of Asia Minor. 1. Liquidambar Styraciflua, L. Sw^eet Gum. Bilsted. Leaves generally round in outline, truncate or slightly heart-shaped at the base, deeply 5-7-lobed, with acutely pointed divisions finely serrate, with rounded appressed teeth, when they unfold pilose on the lower surface, soon becoming t^c, ^Cog glabrous with the exception of large tufts of pale rufous hairs in the axils of the principal veins, at maturity thin, bright green, smooth and lustrous, 6'-7' across, with broad primary veins and finely reticulate veinlets, exhaling when bruised a pleasant resinous fragrance, in the autumn turning deep crimson; their petioles slender, covered at first near the base with rufous caducous hairs, and 5'-6' long; stipules entire, glabrous, |'-^' long. FloTvers: staminate in racemes 2'-3' long, covered with rufous hairs, in heads stalked toward the base of the raceme and nearly sessile above, y in diameter and surrounded by ovate acute deciduous hairy bracts much larger than the lanceolate acute bracts of the female inflorescence ^' across and conspicuous from the broad stigmatic surfaces of the recurved and contorted styles. Fruit I'-IV in diameter, persistent during the winter, the carpels opening in the autumn; seed l' long and rather longer than its wing, with a light brown coat conspicuously marked by oblong resin-ducts. HAMAMELIDACE^ 341 A tree, 80°-140° high, with a straight trunk 4°-5° in diameter, slender branches forming while the tree is young a pyramidal head, and in old age a comparatively small oblong crown, and slender brauchlets containing a large pith, slightly many- angled, covered when they first appear with caducous rufous hairs, light orange color to reddish brown in their first winter, marked by occasional minute dark lenticels and by large arcuate leaf-scars showing the ends of 3 conspicuous fibro- vascular bundles, developing in their second season corky wings appearing on the upper side of lateral branches in 3 or 4 parallel ranks and irregularly on all sides of vertical branches and increasing in width and thickness for many years, sometimes becoming 2'-3' broad and 1' thick. Winter-buds acute, \' long, and covered by ovate acute minutely apiculate orange-brown scales rounded on the back, those of the inner rows accrescent, tipped with red, and about 1' long at maturity. Wood heavy, hard, straight, close-grained, not strong, bright brown tinged with red, with thin almost white sap wood of 60-70 layers of annual growth; used for the outside finish of houses, in cabinet-making, for street pavement, wooden dishes, and fruit boxes. Distribution. Fairfield County, Connecticut, to southeastern Missouri, south- ward to Cape Canaveral and the shores of Tampa Bay, Florida, and through Ar- kansas and the Indian Territory to the valley of the Trinity River, Texas, reappearing on the mountains of central and southern Mexico and on the highlands of Guatemala; in the maritime region of the south Atlantic states and in the basin of the lower Mississippi Eiver one of the most common trees of the forest, covering rich river bottom-lands usuall}' inundated every year; in the northern and middle states on the borders of swamps and low wet swales; at the north rarely more than 60°-70° tall, with a trunk usually not more than 2° in diameter. Unsurpassed in the brilliancy of the autumnal colors of the leaves; and often planted as an ornamental tree in the eastern states. 2. HAMAMELIS, L. Witch Hazel. Trees or shrubs, with scaly bark, terete zigzag branchlets, naked buds, and fibrous roots. Leaves involute in the bud, unsymmetrical at the base, crenate-toothed, the primary veins conspicuous and nearly parallel with the margins; stipules acute, infolding the bud, deciduous. Flowers autumnal, perfect, in terminal 3-tiowered clusters on axillary simple peduncles furnished near the middle with 2 acute decid- uous bractlets, each flower surrounded by 2 or 3 ovate acute bracts, the outer slightly united at the base into a 3-lobed involucre ; calyx 4-parted, persistent on the base of the ovary, the lobes reflexed; petals inserted on the margin of the cup- shaped receptacle, alternate with the sepals, strap-shaped; stamens 8, inserted in 2 rows on the margin of the receptacle, the 4 opposite the lobes of the calyx fertile, the others reduced to minute strap-shaped scales; filaments free, shorter than the calyx, prolonged into a thickened pointed connective; anthers elliptical, opening laterally from without by persistent valves; ovary of 2 carpels, free at their apex, inserted in the bottom of the receptacle, partly superior; styles subulate, spreading, stigmatic at the apex, persistent; ovule solitary. Fruit a capsule, 2-beaked at the apex, the thick and woody outer layer splitting from above loculicidally before the opening of the thin crustaceous inner layer. Seed oblong, acute, suspended; testa crustaceous, chestnut-brown, shining, forcibly discharged when ripe by the contrac- tion of the edges of the valves of the bony endocarp; embryo surrounded by thick 342 TREES OF NORTH AMERICA fleshy albumen ; cotyledons oblong, foliaceous, longer than the radicle turned toward the oblong depressed hilum. Hamamelis is confined to eastern North America and eastern Asia, with one American and two or three Asiatic species. The name is from a/u-a, at the same time with, and fxr]\is an Apple-tree, and was applied by the ancients to the Medlar or some similar tree. 1. Hamamelis Virginiana, L, Witch Hazel. Leaves obovate, acuminate, long-pointed or sometimes rounded at the apex, very unequal at the base, the lower side rounded or subcordate, the upper usually wedge- shaped and smaller, irregularly and coarsely serrate-toothed above the middle, entire or dentate below, when they unfold with veins, especially on the lower surface, petioles, and stipules coated with stellate ferrugineous pubescence, at maturity mem- branaceous, dull dark green and glabrous or pilose above, lighter colored, lustrous, and pubescent or puberulous on the stout midribs and 6 or 7 pairs of primary veins below, 4'-6' long, 2'-2^' broad, turning delicate yellow color in the autumn ; their stipules lanceolate, acute, coriaceous, ^'-^' long. Flowers from buds appearing in August on short recurved peduncles developed from the axils of leaves of the year, covered like the acute bracts and bractlets with dark ferrugineous pubescence, opening from the middle of September to the middle of November; calyx in the autumn coated on the outer surface with thick pale pubescence, orange-brown on the inner surface, the rounded lobes ciliate on the margins; petals bright yellow, l^'-f long, falling like the stamens as soon as the ovules are fertilized; ovary remaining during the winter without enlarging and surrounded and protected by the pubescent calyx. Fruit ripening in the autumn, usually 2 from each flower-cluster, discharging its seeds when the flowers of the season are expanding, ^' long, pubescent, dull orange-brown and surrounded for half its length by the large persistent calyx bearing at its base the blackened remnants of the floral bracts; seed Y long. A tree, occasionally 25°-30° high, .with a short trunk 12'-14' in diameter, spread- ing branches forming a broad open head, and slender flexible branchlets coated at first with scurfy rusty stellate hairs, gradually disappearing during the summer, and in their first winter glabrous or slightly puberulous, light orange-brown and marked PLATANACE^ 343 by small white dots, becoming in their second year dark or reddish brown; usually a stout shrub sending up from the ground numerous rigid diverging stems 5°-20° tall. Winter-buds acute, slightly falcate, light orange-brown, covered with short fine pubescence, \'-^' long. Bark i' thick, light brown, generally smooth but broken into minute thin appressed scales disclosing in falling the dark reddish purple inner bark. Wood heavy, hard, very close-grained, light brown tinged with red, with thick nearly white sap wood of 30—40 layers of annual growth. The bark and leaves are slightly astringent and although not known to possess essential properties are largely used in the form of fluid extracts and decoctions and in homoeopathic practice. Pond's Extract being made by distilling the bark in diluted alcohol. Distribution. Nova Scotia, New Brunswick, and the valley of the St. Lawrence River to southern Ontario, Wisconsin and eastern Nebraska, and southward to north- ern Florida and eastern Texas, growing usually on the borders of the forest in low rich soil or on the rocky banks of streams; of its largest size and probably only arbo- rescent on the slopes of the high Alleghany Mountains in North and South Carolina and Tennessee. Occasionally cultivated as an ornamental plant in the northern states, and in western and northern Europe. XX. PLATANACEiE. Trees, with watery juice, thick deeply furrowed scaly bark exfoliating from the branches and young trunks in large thin plates, terete zigzag pithy branch- lets prolonged by an upper axillary bud, and fibrous roots. Winter-buds axillary, conical, large, smooth, and lustrous, nearly surrounded at the base by the narrow leaf-scars displaying a row of conspicuous dark fibro-vascular bundle-scars, covered by 3 deciduous scales, the 2 inner accrescent, strap- sha})ed, rounded at the apex at maturity, marking in falling the base of the branchlet with narrow ring-like scars, the outer scale surrounding the bad and splitting longitudinally with its expansion, the second light green, covered by a gummy fragrant secretion and usually inclosing a bud in its axil, the third coated with long rufous hairs. Leaves longitudinally plicate in vernation, alternate, broadly ovate, cordate, truncate, or wedge-shaped and decurrent on the petiole at the base, more or less acutely 3-7-lobed, and occasionally furnished with a more or less enlarged basal lobe, the lobes entire, dentate, with minute remote callous teeth, or coarsely sinuate-toothed, penniveined, the veins arcuate and united near the margins and connected by inconspicuous reticulate veinlets, clothed while young like the petioles, stipules, and young branchlets with caducous stellate sharp-pointed branching hairs, pale on the lower and rufous on the upper surface, long-petiolate, turning brown and withering in the autumn before falling ; their petioles abruptly enlarged at the base and inclosing the buds, stipules membranaceous, laterally united below into a short tube surrounding the branchlet above the insertion of their leaf, acute, more or less free above, dentate or entire, thin and scarious on flowering shoots, broad and leaf -like on vigorous sterile branchlets, caducous, marking the branchlet in falling with narrow ring-like scars. Flowers minute, appearing with the unfolding of the leaves in dense unisexual pedunculate solitary or spicate heads, the staminate and pistillate heads on separate peduncles or rarely united on the same peduncle ; staminate heads dark red on axillary peduncles ; pistillate heads light green tinged with red, on long terminal peduncles, the 344 TREES OF NORTH AMERICA lateral heads in the spicate clusters sessile and embracing at maturity the peduncle, usually persistent on the branches during the winter ; calyx of the staniinate flower divided into 3-6 minute scale-like sepals slightly united at the base, about half as long as the 3-6 cuneiform sulcate scarious pointed petals ; stamens as many as the divisions of the calyx, opposite them, with short nearly obsolete filaments, and elongated clavate 2-celled anthers, their cells opening longitudinally, crowned by a capitate pilose truncate connective ; calyx of the pistillate flower divided into 3-6, usually 4, rounded sej)als much shorter than the acute petals ; stamens scale-like, elongated-obovate, pilose at the apex ; ovaries as many as the divisions of the calyx, superior, sessile, oblong, surrounded at the base by long ridged jointed pale hairs persistent round the fruit, gradually narrowed into long simple bright red styles papillose-stigmatic to below the middle along the ventral suture ; ovules 1 or rarely 2, suspended laterally, orthotropous. Heads of fruit composed of elongated obovate akenes rounded and obtuse or acute at the apex, surmounted by the persistent styles, 1-seeded, light yellow-brown ; pericarp thin, coriaceous. Seed elongated, oblong, suspended ; testa thin and firm, light chestnut-brown ; embryo erect in thin fleshy albumen ; cotyledons oblong, about as long as the elongated cylin- drical erect radicle turned toward the minute apical hilum. A family of a single genus. 1. PLATANUS, L. Plane-tree. Characters of the family. A genus of six or seven species of eastern and western North America, Mexico, Central America, and of southwestern Asia, all resembling each other except in the form of the lobes of the leaves and the amount of pubescence on their lower surface, in the pointed or obtuse apex of the akene, and in the number of heads of pistillate flowers on their peduncle. Of the exotic species, the Old World Platanus orientalis, L., now a common street tree in all the countries of temperate Europe, has been used as a shade-tree in the eastern states and in California. Platanus is the classical name of the Plane-tree. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Leaves broadly ovate, shallowly 3-5-lobed, the lobes mostly serrulate-toothed, truncate or rarely wedge-shaped at the base ; head of fruit usually solitary. 1. P. occidentalis (A, C). Leaves deeply 5-lobed, the lobes entire, remotely and obscurely dentate or rarely sinuate- toothed, truncate or rarely slightly cordate or wedge-shaped at the base ; heads of fruit racemose. 2. P. racemosa (G). Leaves deeply 3-7-lobed, the lobes elongated, slender, entire or rarely remotely dentate, deeply cordate or rarely wedge-shaped or truncate at the base ; heads of fruit racemose. 3. P. Wrightii (H). 1. Platanus occidentalis, L. Sycamore. Button-wood. Leaves broadly ovate, more or less 3-5-lobed by broad shallow sinuses rounded at the bottom, the lobes broad, acuminate, sinuate-toothed, with long straight or curved remote acuminate teeth, or entire, with undulate margins, truncate or slightly cordate, or wedge-shaped and decurrent on the petioles at the base, thin and firm, bright green on the upper surface, paler on the lower, glabrous with the exception of a coat of pale pubescence along the midribs and principal veins PLATANACE^ 345 below, 4'-7' long and broad, or twice as large on vigorous shoots and then frequently furnished with dentate basal lobes, with stout yellow midribs and veins ; their petioles stout, terete or slightly angled, puberulous; stipules I'-l^' long, entire or sinuate- toothed. Flowers: peduncles coated with pale tomentum, bearing 1 and sometimes 2 heads of flowers. Fruit: heads 1' in diameter, on slender glabrous stems 3'-6' in length; akene about |' long and truncate or obtusely rounded at the apex. A tree, occasionally 140°-170° high, with a trunk sonietimes 10°-11° in diameter above its abruptly enlarged base, often divided near the ground into several large secondary trunks, or rising 70°-80°, with a straight column-like shaft free of branches and with little diminution of diameter, massive spreading limbs forming a broad open irregular head sometimes 100° in diameter, their extremities usually erect or more or less pendulous, and slender branchlets coated at first like the leaves, peti- oles, and stipules with thick pale deciduous tomentum, during their first summer dark green and glabrous, marked by minute oblong pale lenticels, becoming dark orange- brown and rather lustrous during their first winter and light gray in their second year. "Winter-buds ^'-f ' long. Bark of young trunks and large branches rarely more than ^' thick, dark reddish brown, broken into small oblong thick appressed plate- like scales, smooth, light gray, and separating higher on the tree into large thin scales, in falling exposing large irregular surfaces of the pale yellow, whitish, or greenish inner bark, becoming at the base of large trunks 2'-3' thick, dark brown, and divided by deep furrows into broad rounded ridges covered by small thin ap- pressed scales. Wood the favorite material for tobacco boxes, ox-yokes, and butcher's blocks, and now largely used for furniture and the interior finish of houses. Distribution. Borders of streams and lakes on rich bottom-lands; southeastern New Hampshire, northern Vermont and the northern shores of Lake Ontario, west- ward to eastern Nebraska and Kansas, and southward to northern Florida, central Alabama and Mississippi, and the valley of the Brazos River, and through Texas to the valley of the Devil's River, everywhere common but most abundant and of its largest size on the bottom-lands of streams in the basin of the lower Ohio and Mis- sissippi rivers. The most massive if not the tallest deciduous-leaved tree of North America. Rarely planted in the eastern states or in Europe as an ornamental tree. 346 TREES OF NORTH AMERICA 2. Platanus raceniosa, Nutt. Sycamore. Plane-tree. Leaves 3-5-lol)ed to below the middle, with acute or acuininate lobes, entire, dentate, with remote callous tipped teeth, or occasionally coarsely sinuate-toothed, and broad sinuses acute or rounded at the bottom, usually cordate or sometimes truncate and wedge-shaped or decurrent on the petioles at the base, thick and firm, light green above, paler and more or less thickly coated below with pale pubescence most abundant along the midribs and primary veins, 6'-10' long and broad; their petioles stout, pubescent, l'-3' long; stipules I'-l^' long, entire or dentate, often per- sistent until the spring. Flo'wers: peduncles hoary-pubescent, bearing usually 4 or 5 heads of staminate flowers and 2-7 heads of pistillate flowers, a head of the staminate flowers occasionally appearing on the pistillate peduncles above the heads of fertile flowers. Fruit: heads ^' in diameter, on slender zigzag glabrous or pubes- cent stems 6'-9' long; akene acute or rounded at the apex, \' long, tomentose while young, becoming glabrous. A tree, occasionally 100°-120° high, with a trunk sometimes 9° in diameter above the broad tapering base, erect and free of branches for half its height, more often dividing near the ground into secondary stems erect, inclining, or prostrate for 20°-30° at their base, thick heavy more or less contorted spreading branches form- ing an open irregular round-topped head, and branchlets coated at first with thick pale deciduous tomentum, light reddish brown, and marked by numerous small lenticels in their first winter, becoming gradually darker in their second and third years; usually smaller and generally 70°-80° tall, with a trunk 2°-4° in diameter. Winter-buds nearly i' long. Bark at the base of old trunks 3'-4' thick, dark brown, deeply furrowed, with broad rounded ridges separating on the surface into thin scales, thinner, smooth, and pale, or almost white higher on the trunk and on the branches. Distribution. Valley of the lower Sacramento River, California, southward through the interior valleys and coast ranges; and on Mount San Pedro Martir in Lower California; an inhabitant of the banks of streams; exceedingly common in all the valleys of the California coast range from Monterey to the southern borders of the state, and ascending the southern slopes of the San Bernardino Mountains to elevations of 3000°. PLATANACE^ 347 3. Platanus Wrightii, "Wats. Sycamore. Leaves divided by narrow sinuses to below the middle and sometimes nearly to the centre into 3-7 but usually into 3-5 elongated acute lobes entire or dentate, with callous-tipped teeth, or occasionally furnished with 1 or 2 lateral lobes, sometimes deeply cordate by the downward projection of the lower lobes, or often truncate or wedge-shaped at the base, thin and firm in texture, light green and glabrous above, covered below with pale pubescence, 6'-8' long and broad, with slender ribs, and primary veins connected by conspicuous reticulate veinlets; their petioles stout, gla- brous or puberulous, 1^-3' long. Flowers: peduncles hoary-tomentose, bearing 1-4 heads of flowers. Fruit: heads on slender glabrous stems 6'-8' long, about ^' in diameter; akenes glabrous, ^ ^^^gt truncate at the apex. A tree, 'often 60°-80° high, with a straight trunk 4°-5° in diameter, gradually tapering and free of brandies for 20°-30°, or with a trunk divided at the ground into 2 or 3 large stems usually more or less reclining and often nearly prostrate for 15°-20°, thick contorted branches, the lowest growing almost at right angles to the trunk and 50°-60° long, the upper usually erect at first, finally spreading into a broad open handsome head, and slender branchlets coated at first with thick pale tomentum, becoming glabrous or slightly puberulous during their first winter, marked by minute scattered lenticels, and light brown tinged with red or ashy gray, and gradually darker in their second or third year. Winter-buds hardly more than ^' long. Bark at the base of the trunk dark, 3'-4' thick, deeply and irregu- larly divided into broad ridges, and covered on the surface with small appressed scales, thinner and separating into large scales 10°-15° above the ground, and gradu- ally passing into the smooth much thinner creamy white bark faintly tinged with green of the upper branches. Distribution. Banks of streams in the mountain canons of southwestern New Mexico and southern Arizona; and in Son'ora; the largest and one of the most abundant of the deciduous-leaved trees on all the mountain ranges of southern Xew Mexico and Arizona, extending from the mouths of canons up to elevations of 5000° -6000° above the sea. 348 TREES OF NORTH AMERICA XXI. ROSACEiE. Trees or shrubs, witli watery juices, terete braiiclilets, scaly Imds, and alter- nate leaves {opposite in Li/oNotha?n/iits), with stipules. Flowers ])erfect ; calyx 5-lobetl ; petals 5 {0 in Cercocarj)i(s), imbricated in the bud, inserted with the numerous distinct stamens on the edge of a disk lining the calyx-tube ; anthers introrse (extrorse in Vauquelinia), 2-celled, the cells opening longitudinally ; ovary superior in Lyonothamnus and Heteromeles, often gartly superior in Amelanchier ; ovules 2 in each cell {1 in Cercocarjnis, Jf in Lyonothamnus), anatropous. Seeds without albumen {alhnminous in LyonothaTiinus). A family of about ninety genera chiefly confined to the temperate parts of the world and producing many of the most valuable fruits, including the apple, pear, quince, strawberry, raspberry, and blackberry. Of the six tribes into which the genera of the family are grouped, five have arborescent representatives in North America. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT GENERA. Tribe 1. Spir^OIDE^. Fruit a woody capsule. Flowers in terminal cyraose corymbs ; calyx-lobes persistent ; ovary 5-celled ; ovules ascending ; mature carpels adherent below and opening- down the back ; albumen 0 ; leaves simple. 1. Vauquelinia. Flowers in terminal cymose corymbs ; calyx-lobes deciduous ; ovary 2-celled ; ovules 4 in each cell, pendulous ; mature carpels opening- on the ventral and partly on the dorsal suture ; albumen thin ; leaves opposite, simple or pinnately divided. 2. Lyonothamnus. Tribe 2. Pomoide^. Fruit a pome composed of the thickened and succulent calyx-tube inclosing- the papery or bony carpels ; stipules free from the petioles. Mature carpels papery. Carpels as many as the styles. Flowers in simple terminal cymes on short spur-like lateral branchlets ; ovary 3-5-celled ; styles more or less united below ; leaves simple ; winter-buds small. 3. Malus. Flowers in broad compound terminal cymes ; ovary 2-4, usually 3-celled ; styles distinct ; fruit subglobose ; leaves unequally pinnate ; winter-buds larg-e. 4. Sorbus. Flowers in larg-e terminal corymbose panicles ; ovary nearly superior, 2-celled ; styles distinct ; fruit obovoid. 5. Heteromeles. Carpels becoming at maturity twice as many as the styles ; flowers in erect or nod- ding racemes ; ovary inferior or partly superior ; styles 2-5, more or less united below ; fruit subglobose or pyriform ; leaves simple, deciduous. 6. Amelanchier. Mature carpels bony ; flowers in terminal cymose corymbs ; ovary 1-5-eelled ; styles distinct ; fruit globose to pyriform ; leaves simple, deciduous. 1. Crataegus. Tribe 3. CERCOCARPEiE. Carpels free from the persistent calyx, becoming akenes. Flowers axillary, solitary ; petals 0 ; ovary 1 or rarely 2-celled ; ovule 1 ; fruit tipped with the elongated persistent plumose style ; leaves simple, persistent. 8. Cercocarpus. Tribe 4. Prunoide^. Fruit a 1-seeded drupe ; ovary 1-celled ; style terminal ; ovules pendulous. Flowers in fascicled umbels or racemes ; leaves simple, deciduous or persistent. 9. Prunus. ROSACEA 349 Tribe 5. Chrysobalanoide^. Fruit a 1-seeded drupe ; ovary 1-celled ; style lateral, ovules ascending-. Flowers in axillary or terminal eymose panicles ; leaves simple, persistent. 10. Chrysobalanus. 1. VAUQUELINIA, Corr. Trees or shrubs, with slender terete branehlets, and scaly bark. Leaves alternate or rarely opposite, lanceolate, serrate, long-petiolate, reticulate-veined, coriaceous, persistent; stipules minute, acute, deciduous. Flowers on slender bibracteolate pedi- cels, in compound terminal leafy eymose corymbs; calyx short-turbinate, coriaceous, o-lobed, the lobes ovate, obtuse or acute, erect, persistent; petals 5, orbicular or oblong, white, becoming reflexed, persistent; stamens 15-25, inserted in 3 or 4 series, equal or semiequal, those of the outer row opposite the petals; filaments subulate, exserted, persistent; anthers versatile, extrorse; carpels 5, opposite the sepals, inserted on the thickened base of the calyx-tube and united below into a 5-celled ovoid tomentose ovary crowned with 5 short spreading styles dilated into capitate stigmas; ovules subbasilar, ascending, prolonged at the apex into thin membra- naceous wings; raphe ventral; micropyle superior. Fruit a woody ovoid 5-celled tomentose capsule inclosed at the base by the remnants of the flower, the mature carpels adherent below and at maturity splitting down the back. Seeds 2 in each cell, ascending, compressed; testa membranaceous, expanded into a long terminal membranaceous wing; embryo filling the cavity of the seed; cotyledons flat; radicle straight, erect. Vauquelinia is confined to the New World and is distributed from Arizona and Lower California to southern Mexico. Three species are distinguished; of these one inhabits the mountain ranges of southern Arizona. The generic name is in honor of the French chemist Louis Nicholas Vauquelin (1763-1829). 1. Vauquelinia Californica, Sarg. Leaves narrowly lanceolate, acuminate or rarely rounded at the apex, abruptly wedge-shaped or slightly rounded at the base, and remotely serrate, with minute glandular teeth, when they unfold puberulous above and densely tomentose below, at maturity coriaceous, bright yellow-green and glabrous on the upper and tomentose 350 TREES OF NORTH AMERICA on the lower surface, lA'-3' long, \'-^' wide, with thick conspicuous midribs grooved on the upper side, and numerous thin primary veins connected by reticulate veinlets, deciduous in spring or early summer; their petioles tlnck, ^'—^' long. Flo"wer8 appearing in June, ^ in diameter, in hoary-tomentose panicles 2'-3' across; petals oblong; inner surface of the disk pilose. Fruit fully grown by the end of August, ^' long, persistent on the branches after opening until the spring of the following year; conspicuous from the contrast of the bright red faded petals and the white silky pubescence of the calyx and carpels; seed y^^' long, and one third as long as its wing. A tree, 18°-20° high, with a slender often hollow trunk 5'-G' in diameter, rigid upright contorted branches, and slender branchlets at first bright reddish brown and more or less thickly covered with hoary tomentum, becoming light brown or gray in their second year and marked by large elevated leaf-scars; or more often a low shrub. Bark about -^q' thick, dark red-brown, and broken on the surface into small square persistent plate-like scales. Wood very heavy, hard, close-grained, dark rich brown streaked with red, with 14 or 15 layers of annual growth. Distribution. Mountain ranges of southern Arizona, Sonora, and Lower Califor- nia; arborescent and of its largest size in Arizona on the Santa Catalina Mountains at elevations of about 5000° above the sea; on the bottoms and rocky sides of gulches, or on grassy slopes. 2. LYONOTHAMNUS, Gray. A tree or shrub, with scaly bark exfoliating in long strips, stout terete pubescent ultimately glabrous branchlets, and scaly buds. Leaves opposite, long-petiolate, lanceolate, acuminate, rounded or wedge-shaped at the base, entire, finely crenulate- serrate or serrulate-lobulate below the middle, or sometimes irregularly pinnately parted into 3-8 linear-lanceolate remote lobulate segments, coriaceous, transversely many-veined, dark green above, paler and more or less pubescent below, persistent; stipules lanceolate, acute, minute, caducous. Flowers on slender pedicels, in broad com- pound terminal pubescent cymose corymbs, with minute acute persistent bracts and bractlets; calyx-tube hemispherical, with 1-3 bractlets, tomentose on the outer sur- face, the lobes nearly triangular, slightly keeled, apiculate, persistent; disk 10-lobed. ROSACE.E 351 with a slightly thickened margin; petals 5, orbicular, sessile, white; stamens 15, inserted in pairs opposite the petals and singly opposite the sepals; filaments subu- late, incurved, as long as the petals; anthers oblong, 2-celled, the cells opening longitudinally; carpels 2, inserted in the bottom of the calyx-tube, forming a superior glandular-hairy ovary; styles 2, spreading; stigmas capitate, truncate; ovules 4 in each cell, suspended; micropyle superior; raphe ventral. Fruit of 2 woody ovate glandular 4:-seeded carpels, dehiscent on the ventral and partly dehiscent on the dorsal suture. Seeds ovate-oblong, pointed at the ends; seed-coat light brown, thin and membranaceous; hilum orbicular, apical; raphe broad and wing-like; cotyle- dons oblong-acuminate, twice as long as the straight radicle directed toward the hilum. Lyonothamnus is represented by a single species found only on the islands off the coast of southern California. Lyonothamnus, in honor of its discoverer, William S. Lyon. 1. Lyonothamnus floribundus, Gray. Iron-wood. Leaves 4'-8' long, y wide when entire, or 4' wide when pinnately divided, when they unfold covered below with hoary deciduous tomentum, at maturity dark green and lustrous above and yellow-green, glabrous, or pubescent below, with orange-colored midribs. Flowers in June and July, \'-\' in diameter, in clusters varying from 4'-8' across. Fruit ripens in August and September, ^^' long. A bushy tree, rarely 30°^0° high, with a single straight trunk 8'-10' in diame- ter, and slender branches at first pale orange color and coated with deciduous pubes- cence, becoming at the end of their first season bright red and lustrous; usually shrubby, with several tall stems, or in exposed situations a low bush. Bark \' thick, dark red-brown, and composed of numerous thin papery layers, forming after exfoliating long loose strips persistent on the stem. Wood heavy, hard, close- grained, bright clear red faintly tinged with orange. Distribution. Steep slopes of caiions in dry rocky soil on the islands of Santa Catalina, Santa Cruz, and San Cleraente, California; most abundant and of its largest size on the northern shores of Santa Cruz; on Santa Catalina much smaller and rarely arborescent. 3. MALUS, Hall. Apple. Trees, with scaly bark, slender terete branchlets, small obtuse buds covered by imbricated scales, those of the inner ranks accrescent and marking the base of the branchlet with conspicuous ring-like scars, and fibrous roots. Leaves involute in the bud, simple, often incisely lobed, petiolate, deciduous, the petioles in falling leaving narrow horizontal scars marked by the ends of three equidistant fibro-vascular bun- dles; stipules free from the petioles, filiform, early deciduous. Flowers in simple terminal cymes, with filiform deciduous bracts and bractlets, on short lateral spur- like often spinescent branchlets; calyx-tube urn-shaped, 5-lobed, the lobes imbricated in the bud, acuminate, becoming reflexed, persistent and erect on the fruit or decid- uous; petals rounded, contracted below into stalk-like bases, white, pink or rose color; stamens usually 20 in 3 series, those of the outer series opposite the petals; carpels 3-5, usually 5, alternate with the petals, united into an inferior ovary; styles united at the base; ovules 2 in each cell, ascending; raphe dorsal; micropyle infe- rior. Fruit a pome with homogeneous flesh, and papery carpels joined at the apex, free in the middle; seeds 2, or by abortion 1 in each cell, ovate, acute, erect, without 352 TREES OF NORTH AMERICA albumen; seed-coat cartilaginous, chestnut-brown, and lustrous; embryo erect; cotyle- dons plano-convex, Heshy; radicle short, inferior. Mains is confined to North America, where four species occur, and to southeastern, northeastern, and eastern Asia. Of exotic species, Malus Malus, Britt., the Apple- tree, of uncertain origin, but probably a native of some of the countries of south- western or central Asia, is now widely naturalized in northeastern North America. Several of the species of eastern Asia and their hybrids are cultivated for their handsome Howers, or for their fruits, the crab apples of the orchard. Malus is the classical name of the Apple-tree. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Calyx-lobes persistent; fruit depressed-globose, hollowed at the base, leaves convolute in the bxid. Mature leaves glabrous or nearly so. Leaves oblong, lanceolate, or oval, acute at the base, crenulate-serrate or nearly entire, subcoriaceous. 1. M. angustifolia (A, C).-f'o. Leaves ovate, truncate or subcordate at the base. 2. M. coronaria (A). Mature leaves tomentose below, ovate to oblong, narrow at the base. .3. M. loensis (A, C). Calyx-lobes deciduous ; fruit oblong, full and rounded at the base ; leaves ovate-lanceolate, serrulate, often 3-lobed, conduplieate in the bud. 4. M. rivularis (B, G). 1. Malus angustifolia, Michx. Crab Apple. Leaves lanceolate-oblong, acute or rounded and apiculate at the apex, acute at the base, coarsely crenulate-serrate above the middle, or sometimes nearly entire, more or less coated when they first appear with pale tomentum below and pilose above, at maturity subcoriaceous, dark green and lustrous on the upper surface, paler and glabrous or nearly so on the lower surface, l^'-3' long, about I'-l^' wide, with slen- der midribs and obscure primary veins; their petioles slender, rigid, glabrous or puberulous, f'-l' long; stipules rose color, ^' long. Flowers 1' in diameter, very fragrant, on slender glabrous or hoary-tomentose pedicels I'-l^' long, in few-flow- ered clusters; calyx-tube glabrous, pubescent or tomentose, the lobes narrow, acumi- nate, with rigid tips, and boary-tomeutose on the inner surface; petals distinct, / ROSACEA 353 narrowly obovate, rounded above, undulate and sometimes irregularly dentate at the base of the blade, white, pink, or rose color; ovary and the lower part of the styles densely hoary-tomentose. Fruit depressed-globose, f'-l' in diameter, pale yellow-green, very fragrant when fully ripe, with hard acid flesh. A tree, rarely 30"^ high, with a short trunk 8'-10' in diameter, rigid branches forming a broad open head, and young branchlets clothed at first with pale caducous pubescence, becomnig in their first winter brown slightly tinged with red, and in their second year light brown and marked by occasional orange-colored lenticels. Winter-buds Jg' long, chestnut-brown, slightly pubescent. Bark ^'-\' thick, dark reddish brown, and divided by deep longitudinal fissures into narrow ridges broken on the surface into small persistent plate-like scales. Wood heavy, hard, close- grained, light brown tinged with red, with thick yellow sapwood; occasionally em- ployed for levers, the handles of tools and other small objects. The fruit is used for preserves. Distribution. Allegheny County, Pennsylvania, and southern Delaware, through the coast region of the south Atlantic states to the valley of the Chattahoochee River, Florida, through the Gulf states to the valley of the Red River, Louisiana, and northward to middle Tennessee; in the Atlantic states in forest glades, usually in the neighborhood of streams; in the Gulf states often in the sandy soil of dry depressions of the Pine-covered uplands. 2. Malus coronaria, Mill. Crab Apple. Fragrant Crab. Leaves ovate or sometimes almost triangular, usually acute, often truncate or subcordate and occasionally acute at the base, incisely serrate, with glandular teeth. Fk^.^'JJ often 3-lobed, especially on vigorous shoots, when they unfold red-bronze, coated below with pale tomentum and pilose above, at maturity membranaceous, bright green on the upper surface, paler, glabrous or sometimes slightly pilose on the lower surface, 3'-4' long, l^'-2^' wide, with broad midribs and primary veins, and con- spicuous veinlets, turning yellow in the autumn before falling; their petioles slender, l-^'-2' long, at first tomentose or pubescent, ultimately glabrous, often glandular near the middle, with 2 dark glands; stipules acuminate, ^' long. Flovrers 1^-2' across when expanded, in 5 or 6-flowered umbels, on slender pedicels, very fragrant; calyx-tube coated with thick white tomentum, its lobes elongated, acute, ending in 354 TREES OF NORTH AMERICA rigid subulate points, hoary-tonientose on the inner surface; petals white or rose color, obovate, of ten crenately serrate or undulate at the apex, sometimes irregularly and unequally dentate below; ovary and base of the styles hirsute. Fruit on long slender stems, 1-1^' in diameter, green when fully grown, yellow-green and some- what translucent at maturity, very fragrant and covered with a waxy exudation. A tree, 25°-30° higli, with a trunk 12'-14' in diameter, dividing 8°-10° above the ground into several stout spreading branches forming a wide open head, and branchlets hoary-tomentose when they first appear, glabrous or slightly pubescent, bright red-brown, and marked by occasional small pale lenticels in their first winter, and developing in their second year stout, spur-like, somewhat spinescent lateral branchlets. Winter-buds minute, obtuse, with bright red scales scarious and ciliate on the dark margins. Bark ^' thick, longitudinally fissured, the outer layer sepa- rating into long narrow persistent red-brown scales. "Wood heavy, close-grained, not strong, light red, with yellow sap wood of 18-20 layers of annual growth; used for levers, the handles of tools, and many small domestic articles. Distribution. Rich rather moist soil in forest glades, often forming wide thick- ets; less commonly on dry limestone hills; valley of the Humber River, Ontario, westward along the northern shores of Lake Erie, and southward through western New York and Pennsylvania to the District of Columbia, and along the Alleghany Mountains to central Alabama, and westward to northern Missouri. Often planted as an ornamental tree in the eastern and northern states. 3. Malus loensis, Britt. Crab Apple. Leaves ovate, oval, or oblong, acute or rounded at the apex, usually acute or narrowed and rounded at the base, crenately serrate, and on vigorous shoots wedge- shaped at the broad base and usually incisely lobed, with acute coarsely serrate lobes, when they unfold hoary-tomentose below and nearly glabrous above, and at maturity thick and firm, dark green and lustrous on the upper surface, pale yellow- green and tomentulose on the lower surface, 3'-4' long, ll'-2^' wide, with slender remote primary veins, turning yellow in the autumn before falling; their petioles stout, covered at first with hoary tomentum, becoming tomentulose, I'-l^' long. Flo"wers 1^-2' across when expanded, in few-flowered clusters, on hoary-tomen- tose pedicels I'-l^' long; calyx coated with thick matted snow-white hairs, the ROSACEA 355 acute lobes toraentose on the inner surface; petals white or rose color, obovate; ovary and base of the styles hirsute. Fruit l^'-l^' in diameter, greenish yellow, fragrant, on stout tomentose or villose stalks I'-l^' long. A tree, 20°-30^ high, with a trunk 12'-18' in diameter, stout spreading branches forming a wide open head, and branchlets hoary-tomentose when they first appear, glabrous or slightly pubescent, bright red-brown and marked by occasional small pale lenticels in their first winter, the lateral branchlets usually spinescent. Winter- buds minute, obtuse, pubescent above the middle. Bark ^ thick, covered with long narrow persistent red-brown scales. Distribution. Minnesota and Wisconsin, Illinois and western Kentucky to east- ern Nebraska, Missouri, Kansas, the Indian Territory, Louisiana, and Texas; the common Crab Apple of the Mississippi basin. The Bechtel Crab, a form with large double rose-colored flowers, is often culti- vated in the eastern and central states as an ornament of gardens. Malus Soulardi, Britt., the Soulard Crab, with ovate, elliptic, or obovate usually obtuse leaves rugose and tomentose on the lower surface, and larger fruit, occurring occasionally from Minnesota to eastern Texas, is believed to be a natural hybrid between the common Apple-tree and Malus loensis. 4. Malus rivularis, Roem. Crab Apple. Leaves ovate-lanceolate, acute or acuminate, wedge-shaped or rounded at the base, sharply serrate, with appressed glandular teeth, occasionally obscurely 3-lobed, when they unfold pubescent on the lower and puberulous on the upper surface, at maturity thick and firm, dark green and glabrous above, pale and slightly pubescent p/(,.27C) below, l'-3' long, ^^'-1^ wide, with prominent midribs and primary veins and con- spicuous reticulate veinlets, before falling in the autumn turning bright orange and scarlet; their petioles stout, rigid, pubescent, I'-l^' long; stipules narrowly lanceo- late, acute, ^'— I' long. Flowers \' in diameter, on slender pubescent pedicels, in short racemose many-flowered cymes; calyx-tube narrowly obconic, glabrous or pu- berulous, the acute lobes minutely apiculate, hoary-tomentose on the inner surface, deciduous from the mature fruit; petals orbicular to obovate, erose or undulate on the margins; styles 2-4, glabrous. Fruit obovate-oblong, \'-^' long, yellow-green, light yellow flushed with red or sometimes nearly red ; flesh thin and dry. 356 TREES OF NORTH AMERICA A tree, 30°-40° high, with a trunk 12'-18' in diameter, and sknider branchlets coated at first with long pale hairs soon deciduous or persistent until the autumn, becoming bright red and lustrous, and later dark brown and marked by minute remote pale leutieels; often a shrub with numerous slender stems. Winter-buds obtuse, ^' long, chestnut-brown, the inner scales at maturity lanceolate, usually bright red and nearly ^' in length. Bark y thick, and covered by large thin loose light red-brown plate-like scales. Wood heavy, hard, very close, light brown tinged with red, with lighter colored sap wood of 20-30 layers of annual growth; used for mallets, mauls, the handles of tools, and the bearings of machinery. The fruit has a pleasant subacid flavor. Distribution. Deep rich soil in the neighborhood of streams, often forming almost impenetrable thickets of considerable extent; Aleutian Islands southward along the coast and islands of Alaska and British Columbia to Sonoma and Plumas counties, California; of its largest size in the valleys of Washington and Oregon. Occasionally cultivated as an ornamental plant in the eastern states, and in western Europe. 4. SORBUS, L. Mountain Ash. Trees or shrubs, with smooth aromatic bark, stout terete branchlets, large buds covered by imbricated scales, the inner accrescent and marking the base of the branchlet by conspicuous ring-like scars, and fibrous roots. Leaves alternate, pinnate in the American species, the pinnpe conduplicate in the bud, serrate, deciduous; stipules free from the petioles, foliaceous. Flowers in broad and terminal leafy cymes; calyx-tube urn-shaped, 5-lobed, the lobes imbricated in the bud, persist- ent; petals rounded, abruptly narrowed below, white; stamens usually 20 in 3 series, those of the outer series opposite the petals; carpels 2-5, usually 3; styles usually 3, distinct; ovules 2 in each cell, ascending; raphe dorsal; micropyle infe- rior. Fruit a small subglobose red or orange-red pome with acid flesh, and papery carpels free at the apex. Seeds 2, or by abortion 1, in each cell, ovate, acute, erect; seed-coat cartilaginous, chestnut-brown, and lustrous; embryo erect; cotyledons plano-convex, flat; radicle short, inferior. Sorbus is widely distributed through the northern and elevated regions of the northern hemisphere with three or four species in North America of which one is arborescent. Of exotic species, Sorbus Aucuparia, L., the European Mountain Ash, is often cultivated as an ornamental tree in Canada and the northern states and has become sparingly naturalized northward. Sorbus is the classical name of the Pear or of the Service-tree. 1. Sorbus Americana, Marsh. Mountain Ash. Leaves 6'-8' long, with slender grooved dark green or red petioles, often with tufts of dark hairs at the base of the petiolules, and 13-17 lanceolate acute taper- pointed leaflets unequally wedge-shaped or rounded and entire at the base, sharply serrate above, with acute often glandular teeth, sessile or short-stalked, or the terminal leaflet on a stalk sometimes y long; when they unfold slightly pubescent below, at maturity membranaceous, glabrous, dark yellow-green on the upper and pale on the under surface, 2'-3' long, ^'-f wide, with prominent midribs and thin veins, turning bright clear yellow before falling in the autumn; stipules broad, nearly triangular, variously toothed, caducous. Flo"wers appearing after the leaves are fully grown, \' in diameter, on short stout pedicels, in flat cymes 3'-4' across, with EOSACE^ 357 acute minute caducous bracts and bractlets; calyx broadly obconic and puberulous, with short, nearly triangular lobes tipped with minute glands and about half as long as the nearly orbicular creamy white petals. Fruit \' in diameter, subglobose or slightly pyriform, bright red, with thin flesh; seeds pale chestnut color, rounded at the apex, acute at the base, about ^' long. A tree, 20°-30° high, with a trunk rarely more than a foot in diameter, spreading slender branches forming a narrow round-topped head, and stout branchlets pubes- cent at first, soon glabrous, becoming in their first winter brown tinged with red, and r marked by the large leaf-scars and by oblong pale remote lenticels, and darker in their second year, the thin papery outer layer of bark then easily separable from the bright green fragrant inner layers; more often a tall or sometimes a low shrub, with numerous stems. Winter-buds acute, ^'-f long, with dark vinous red acumi- nate scales rounded on the back, more or less pilose, covered with a gummy exuda- tion, the inner scales hoary-tomentose in the bud. Bark 1' thick, with a smooth light gray surface irregularly broken by small appressed plate-like scales. "Wood close-grained, light, soft and weak, pale brown, with lighter colored sapwood of 15- 20 layers of annual growth. The astringent fruit is employed domestically in infu- sions and decoctions, and in homoeopathic remedies. Distribution. Borders of swamps and rocky hillsides; Newfoundland to Mani- toba and southward through the maritime provinces of Canada, Quebec and Ontario, the elevated portions of the northeastern United States and the region of the Great ^akes to the high mountains of Virginia and North Carolina; probably of its largest size on the northern shores of Lakes Huron and Superior; in the United States, except in New England, more often a shrub than a tree; on the Alleghany Mountains usually low, wath narrower leaflets and smaller fruit than northward. Of its various forms the most distinct is Sorbus Americana, var. decora, Sarg., nov. nom. (Pyrus Americana, var. decora, Silva N. Am. xiv. 101.) Leaves 4' -6' long, with stout usually red petioles often furnished with tufts of dark hairs at the base of the petiolules, and 7-13 oblong-oval to lance-ovate leaflets 358 TREES OF NORTH AMERICA blunt and rounded, abruptly short-pointed or acuminate at the apex, pubescent below as they unfold, at maturity glabrous, dark bluish green on the upper surface and pale on the lower surface. Flowers ^ i" diameter, in rather narrower clusters, appear- ing eight to ten days later than those of the type. Fruit subglobose, bright scarlet, often ^' in diameter. A tree, occasionally 30° high, with a trunk sometimes a foot in diameter, and spreading branches forming a round-topped handsome head. Distribution. Coast of Labrador to the northern shores of Lake Superior and Minnesota, southward to the mountains of northern New Hampshire, Vermont, and New York. Distinct in its extreme forms but apparently connected with Sorbus Americana by many intermediate forms. Often cultivated in Canada and the northeastern states as an ornamental tree, especially the var. decora, which is the most beautiful of the Mountain Ashes when the large and brilliant fruits cover the branches in autumn and early winter. 5. HETEROMELES, Roem. A tree, with smooth pale aromatic bark, stout terete branchlets pubescent or puberulous while young, acute winter-buds covered by loosely imbricated red scales, and fibrous roots. Leaves oblong-lanceolate, acute at the ends, sharply and remotely serrate, with rigid glandular teeth, or rarely almost entire, dark green and lustrous above, paler below, petiolate, with stout petioles often furnished near the apex with 1 or 2 slender glandular teeth, feather-veined, with broad midribs and conspicuous reticulate veinlets; stipules free from the petioles, subulate, I'igid, minute, early de- ciduous. Flowers on short stout pedicels, in ample tomentose terminal corymbose leafy panicles, their bracts and bractlets acute, minute, usually tipped with small glands, caducous; calyx-tube turbinate, tomentose below, glabrate above, the lobes short, nearly triangular, spreading, persistent; disk cup-shaped, obscurely sulcate; petals flabellate, erose-denticulate or emarginate at the apex, contracted below into short broad claws, thick, glabrous, pure white; stamens 10, inserted in 1 row with the petals in pairs opposite the calyx-lobes; filaments subulate, incurved; anthers oblong-ovate, emarginate, carpels 2, adnate to the calyx-tube, and slightly united into a subglobose tomentose nearly superior ovary; styles distinct, slightly spreading. ROSACEA 359 enlarged at the apex into broad truncate stigmas; ovules 2 in each cell, ascending; raphe dorsal ; micropyle inferior. Fruit obovoid, fleshy, the thickened calyx-tube connate to the middle only with the membranaceous carpels coated above with long white hairs filling the cavity closed by the infolding of the thickened persistent calyx- lobes, their tips erect and crowning the fruit. Seed usually solitary in each cell, ovate, obtuse, slightly ridged on the back; seed-coat membranaceous, slightly punc- tate, light brown; hilum orbicular, conspicuous; embryo filling the cavity of the seed; cotyledons plano-convex; radicle short, inferior. The genus is represented by a single species of western North America. The generic name, from erepos and ixrj\ov,is in reference to its difference from related genera. 1. Heteromeles arbutifolia, Roem. Tollon. Toyon. Leaves appearing with the flowers in early summer, 3'-4' long, I'-l^' wide, usu- ally persistent during at least two winters; their petioles ^-f long. Flowers open- ing from June to August in clusters 4'-6' across and often more or less hidden by young lateral branchlets rising above them. Fruit ripening in November and Decem- ber, mealy, astringent, and acid, remaining on the branches until late in the winter. A tree, sometimes 30° high, with a straight trunk 12'-18' in diameter, dividing a hcj.^s^s few feet above the ground into many erect branches forming a handsome narrow round-topped head, and slender branchlets covered at first with pale pubescence, in their first winter dark red and slightly puberulous, ultimately becoming darker and glabrous. "Winter-buds i' long. Bark f'-^' thick, light gray, with a generally smooth surface roughened by obscure reticulate ridges. "Wood very heavy, hard, close-grained, dark red-brown, with thin lighter colored sapwood of 7 or 8 layers of annual growth. The fruit-covered branches are gathered in large quantities and used in California in Christmas decorations. Distribution. Usually in the neighborhood of streams or on dry hills and espe- cially on their northern slopes and often on steep sea-cliffs ; California coast region from Mendocino County to Lower California; most common and of its largest size on the islands off the California coast; on the foot hills of the Sierra Nevada and on the San Bernardino Mountains up to elevations of 2000° above the sea and usually 360 TREES OF NORTH AMERICA shrubby ; very abundant and forming groves of considerable extent on the island of Santa Catalina. Occasionally cultivated as an ornamental plant in California, and rarely in the countries of southern Europe. 6. AMELANCHIER, Med. Trees or shrubs, with scaly bark, slender terete branchlets, acute buds, with imbri- cated scales, those of the inner rows accrescent and bright-colored, and fibrous roots. Leaves alternate, conduplicate in the bud, simple, entire or serrate, penniveined, petiolate, deciduous; stipules free from the petioles, linear, elongated, rose color, caducous. Flowers in erect or nodding racemes, on slender bibracteolate pedicels developed from the axils of lanceolate acuminate pink deciduous bracts; calyx-tube campannlate or urceolate, the lobes acute or subulate, recurved, persistent; disk green, entire or crenulate, nectariferous; petals white, obovate-oblong, spatulate or ligulate, rounded, acute, or truncate at the apex, gradually contracted below into short slender claws; stamens usually 20, inserted in 3 rows, those of the outer row opposite the petals; filaments subulate, persistent on the fruit; anthers oblong; ovary inferior or superior, more or less adnate to the calyx-tube, glabrous or puberulous above, 5- celled, each cell incompletely divided by a false partition; styles 2-5, connate below, spreading and dilated above into broad truncate stigmas; ovules 2 in each cell, erect; micropyle inferior. Fruit globose or pyriform, dark blue, open at the summit, the cav- ity surrounded by the lobes of the calyx and the remnants of the filaments; flesh sweet, rather juicy; carpels membranaceous, free or connate, glabrous or villous at the apex. Seeds 10 or often 5 by the abortion of 1 of the ovules in each cell, ovate- elliptical; seed-coat coriaceous, dark chestnut-brown, mucilaginous; embryo filling the cavity of the seed; cotyledons plano-convex; radicle inferior. Amelanchier is widely distributed through the temperate, northern, and the moun- tainous regions of eastern and western North America, and occurs in southern Eu- rope, northern Africa, southwestern Asia, central China and in Japan. Several spe- cies, still imperfectly known, occur in North America; of these three are arborescent. The fruit of all the species is more or less succulent and edible, and many species are cultivated in gardens for the beauty of their early and conspicuous flowers. CONSPECTUS OF THE NORTH AMERICAN ABORESCENT SPECIES. Leaves ovate to ovate-oblong', acute or acuminate at the apex, cordate or rounded at the base, dark red-brown and pilose when they unfold, soon glabrous. 1. A. Canadensis (A, C). Leaves oblong' to elliptical, acute or rounded at the apex, hoary-tomentose below when they unfold, becoming glabrous at maturity. 2. A. obovalis (A, C). Leaves broadly ovate to orbicular, obtuse or rarely acute, hoary-tomentose below when they unfold, becoming glabrous. 3. A. alnifolia (A, B). 1. Amelanchier Canadensis, T. & G. Shad Bush. Service Berry. Leaves ovate to ovate-oblong, acute, cordate or rounded at the base, finely serrate, with straight incurved rigid subulate teeth, when they unfold dark red-brown and pilose, with scattered deciduous white hairs, at maturity thick and firm, glabrous, dark green and dull above, pale below, 3'-4' long and I'-l^' wide, with prominent midribs and slender veins, turning bright clear yellow in the autumn before falling; their petioles slender, ^'-V long. Flcwers appearing when the leaves are about one third ROSACEA 361 grown on slender pedicels ^'-1' long, in erect or nodding glabrous racemes 3'-4' long; calyx campanulate, with lanceolate acute lobes, villous on the inner surface ; petals strap-shaped or slightly obovate, rounded or acute at the apex, thin, ^' to nearly 1' long, ^'-\' wide. Fruit ripening in early summer, depressed-globose, ^'—^' broad, on elongated slender stems conspicuously marked by the scars of the fallen bractlets, bright red when fully grown, becoming dark purple and covered with a glaucous bloom when ripe; seeds ^ long, with a dark red-brown opaque coat. A tree, sometimes 40°-50° high, with a tall trunk 12'-18' in diameter, small spreading branches forming a narrow oblong round-topped head, and slender branch- lets, at first light green and glabrous or slightly puberulous, dark red marked by numerous pale lenticels in their first winter, later becoming dark brown or reddish brown. Winter-buds i' long, with pale chestnut-brown ovate apiculate slightly pubescent scales, those of the inner ranks becoming lanceolate, acute, bright red above the middle, ciliate, with silky hairs, and sometimes 1' long when fully grown. Bark y-^' thick, pale red-brown, divided by shallow fissures into narrow longitudi- nal ridges, and covered by small square persistent scales. Wood heavy, exceedingly hard, strong, close-grained, dark brown often tinged with red, with thick lighter colored sap wood of 40-50 layers of annual growth; occasionally used for the handles of tools and other small implements. Distribution. Upland woods in rich soil; Newfoundland, through the maritime provinces of Canada, and westward along the shores of the Great Lakes, ranging southward to northern Florida and westward to Minnesota, eastern Nebraska, east- ern Kansas, and southern Arkansas. A form with acuminate leaves cordate or rarely rounded at the base and pale-tomentulose below even at maturity (var. tomentula, Sarg., nov. var.) is referred provisionally to this species. Vermont (Ferrisburg, C. E. Faxon, June, 1881) to Ontario, and to Delaware, central Georgia, Missouri, and eastern Louisiana. Often cultivated as an ornament of gardens. 2. Amelanchier obovalis, Ashe. Shad Bush. Service Berry. Leaves oblong to broadly elliptical, acute or rounded at the apex, finely serrate, with slender incurved teeth except at the rounded or subcordate base, when they 362 TREES OF NORTH AMERICA unfold villose above and coated below with hoary tomentum, at maturity thin and glabrous, dark dull green on the upper surface, paler on the lower surface, l^'-2' long, f'-l' wide, with slender midribs and primary veins, turning yellow in the autumn before falling; their petioles slender, ^'-f long. Flo"wers appearing when the leaves are about one third grown, on slender pedicels ^'-f ' long, in erect or nodding villose racemes soon becoming glabrous, and l^'-2^' long; calyx campanulate, at first tomentose, soon glabrous, with linear acute lobes villose on the inner surface, and oblong-obovate petals about |' long and ^^' wide. Fruit ripening early in the summer, depressed-globose, about ^' in diameter, bright red when fully grown, becoming dark purple and covered with a glaucous bloom; seeds i' long, with a dark red-brown opaque coat. A tree, sometimes 25°-30° high, with a single stem, erect branches forming a dense round-topped head, and slender branchlets covered when they first appear with hoary tomentum, soon glabrous, and bright red-brown and marked by numerous minute pale lenticels in their first winter, later becoming darker; often with numerous f^i^'2§ll spreading stems forming a broad tall bush. Winter-buds ^' long, pale chestnut- brown, and pubescent above the middle. Bark \'-^' thick, pale reddish brown and scaly, with small persistent scales. Distribution. Borders of streams and swamps in low wet soil ; Nova Scotia and New Brunswick to Ontario, and northward to the valley of the Mackenzie River in latitude 65° north, and southward through the northern states and along the Alleghany Mountains to Virginia and westward to Minnesota; as a small shrub with narrower petals in the coast region of the south Atlantic and Gulf states from North Carolina to Alabama. A large-fruited variety is occasionally planted in the middle west for its juicy agreeably subacid fruit. 3. Amelanchier alnifolia, Nutt. Service Berry. Leaves broadly ovate to orbicular, obtuse or rarely acute, rounded or subcordate at the base, sharply and coarsely serrate above the middle, with incurved rigid teeth, when they unfold floccose-tomentose below and often pilose above, soon becoming ROSACEA 363 glabrous and at maturity membranaceous to subcoriaceous, dark green on the upper aud pale on the lower surface, I'-l^' long and broad, with slender midribs; their peti- oles slender, ^' long; stipules linear, acute, red-brown, sometimes V long. Flowers on short pedicels, in erect villose racemes I'-l^' long* with acute colored bractlets; calyx cup-shaped, floccose-tomentose or soon glabrous, with linear acute lobes villose on the inner surface; petals narrowly oblong to obovate, rounded or acute at the apex, ^'-1' long; glabrous. Fruit subglobose, dark blue or almost black, with a glaucous bloom, sweet and juicy, ^' to nearly V in diameter; seeds ^' long, with a lustrous red- brown coat. A tree, occasionally 20° high, with a single straight trunk 6'-10' in diameter, and slender branches green, glabrous, pilose, with long pale hairs, or pubescent when they first appear, in their first winter bright red or plum color, glabrous or rarely puberu- lous, and marked by small pale lenticels; more often a shrub, with clustered slender stems. "Winter-buds acute, ^ long, with chestnut-brown glabrous occasionally pilose scales, those of the inner ranks becoming ovate, acute, brightly colored, coated with pale silky hairs, -^'-f' long. Bark about ^' thick, smooth or slightly fissured, and light brown slightly tinged with red. "Wood heavy, hard, close-grained, light brown. The nutritious pungent fruit is an important article of food with the Indians of southwestern America, who gather and dry it in large quantities. Distribution. Valley of the Yukon River in about latitude 62° 50', southward through the coast ranges to northern California, and eastward to Saskatchewan, Manitoba, the western shores of Lake Superior, and to northern Michigan; of its largest size on the islands and rich bottom-lauds of the lower Columbia River and on small prairies in the neighborhood of Puget Sound. 7. CRAT-aiGUS. Hawthorn. Trees or shrubs, with usually dark scaly bark, rigid terete more or less zigzag branchlets marked by oblong mostly pale lenticels, and by small horizontal slightly elevated leaf-scars, light green when they first appear, becoming red or orange-brown and lustrous or gray, rarely unarmed or armed with stout or slender short or elon- gated axillary simple or branched spines generally similar in color to that of the branches or trunk on which they grow, often bearing while young linear elongated 364 TREES OF NORTH AMERICA caducous bracts, and usually producing at their base one or rarely two buds often developing the following year into a branch, a leaf, or a cluster of ilowers, or some- times lengthening into a leafy branch. Winter-buds small, globose or subglobose, covered by numerous imbricated scales, the outer rounded and obtuse at the apex, bright chestnut-brown and lustrous, the inner accrescent, green or rose color, often glandular, soon deciduous. Leaves conduplicate in the bud, simple, generally serrate, sometimes 3-nerved, often more or less lobed, especially on vigorous leading branch- lets, membranaceous to coriaceous, petiolate, deciduous; stipules often glandular- serrate, linear, acuminate, frequently bright-colored, deciduous, or on vigorous branchlets often foliaceous, coarsely serrate, usually lunate and stalked and mostly persistent until autumn. Flowers pedicellate, in few or many-flowered simple or com- pound cymose corymbs terminal on short lateral leafy branchlets, with linear usually bright-colored often glandular caducous bracts and bractlets leaving prominent gland- like scars, the lower branches of compound corymbs usually from the axils of upper leaves; branches of the inflorescence mostly 3-flowered, the central flower opening before the others; calyx-tube usually obconic, 5-lobed, the lobes acute or acuminate and usually gland-tipped, rarely foliaceous, glandular-serrate or entire, green or red- dish toward the apex, reflexed after the flowers open, persistent and often enlarged on the fruit, or deciduous; disk thin or fleshy, entire, lobed or slightly sulcate, concave or somewhat convex; petals imbricated in the bud, orbicular, entire or somewhat erose or rarely toothed at the apex, white or rarely rose color, spreading, soon deciduous; stamens often variable in number in the same species by imperfect development, but normally 5 in 1 row and alternate with the petals, or 10 in 5 pairs in 1 row alternate with the petals, or 15 in 2 rows, those of the outer row in 5 pairs opposite the sepals and alternate with and rather longer than those of the inner row, or 20 in 3 rows, those of the inner row shorter and alternate with those of the 2d row, or 25 in 4 rows, those of the 4th row alternate with those of the 3d row; filaments broad at the base, subulate, incurved, often persistent on the fruit; anthers pale yellow to nearly white, or pink to light or dark rose color or purple; ovary composed of 1-5 carpels inserted in the bottom of the calyx-tube and united with it ; styles free, with dilated truncate stigmas, persistent on the mature carpels; ovules ascending; raphe dorsal; micropyle inferior. Fruit subglobose,. ovate, short-oblong or pear-shaped, scarlet, orange-colored, red, yellow, blue, or black, generally open and concave at the apex; flesh usually dry and mealy; nutlets 1-5; united below, more or less free and slightly spreading above the middle, thick-walled, rounded, acute, or acuminate at the apex, full and rounded or narrowed at the base, rounded or conspicuously ridged and grooved on the back, flattened, or nearly round when only 1, their ventral faces plane or plano-convex or penetrated by longitudinal cavities or hollows. Seed solitary by abortion, erect, compressed, acute, with a membranaceous light chestnut-brown coat; embryo filling the cavity of the seed; cotyledons plano-convex, radicle short, inferior. Crataegus is most abundant in eastern North America, where it is distributed from Newfoundland to the mountains of northern Mexico, and is represented by a large number of arborescent and shrubby species. A few species occur in the Rocky Mountain and Pacific-coast regions, and in China, Japan, Siberia, central and south- western Asia, and in Europe. The genus is still very imperfectly known in North America, and in the absence of sufficient information concerning them several ar- borescent species are necessarily excluded from the following enumeration. The beautiful and abundant flowers and showy fruits make many of the species desirable ROSACEiE • 365 ornaments of parks and gardens, and several are cultivated. Of exotic species, the Old World Cratcegus Oxyacantha, L., early introduced into the United States as a hedge plant, has now become naturalized in many places in the northeastern and middle states. Crataegus produces heavy hard tough close-grained red-brown heart wood and thick lighter colored usually pale sap wood ; useful for the handles of tools, mal- lets, and other small articles. The number of the stamens, although it differs on the same species within certain usually constant limits, and the color of the anthers, which appears to be specifically constant with two exceptions, afford the most satisfactory characters for distinguish- ing the species in the different groups. Cratcegus, from Kparos, is in reference to the strength of the wood of these trees. CONSPECTUS OF THE NATURAL GROUPS OF THE NORTH AMERICAN ARBORESCENT SPECIES. 1. Nutlets without ventral cavities. *Veins of the leaves extending to the points of the lobes only. -*-Petioles short, glandless or with occasional minute glands ; leaves obovate to ob- long, cuneate at the base. -M-Corymbs many-flowered. Leaves coriaceous or subcoriaceous, rarely thin, dark green and shining above, usually serrate only above the middle, their veins thin except on vigorous shoots ; fruit mostly globose to short-oblong, g-'-l' long, with thin bright usually greenish flesh ; nutlets 1-3, thick, usually obtuse and rounded at the ends, prominently ridged on the back. I. Crus-galli (page 367). Leaves membranaceous or subcoriaceous, mostly acute, their veins promi- nent; fruit oblong to globose, often conspicuously punctate, g-'-l' long; flesh dry and mealy ; nutlets 2-5, prominently ridged on the back. II. Punctatae (page 388). •t-t-++ Corymbs few-flowered; flowers appearing with or before the unfolding of the leaves ; "stamens 20-25 ; anthers large, dark rose color. III. -Slstivales (page 399). -t- -t-Petioles elongated, slender, glandless or with occasional minute glands ; leaves membranaceous to subcoriaceous, acute or acuminate at the ends, on one species broad at the base; corymbs many-flowered ; fruit subglobose to oblong, g'-f long. IV. Virides (page 400). -»• -+ -t- Petioles elongated, usually slender, glandular only at the apex (in Intricatce and BracteatcB sparingly glandular throughout). ■^Leaves mostly broad at the base ; corymbs many-flowered {few-flowered in one species of Dilatatce)'. Fruit subglobose to short-oblong, i'-f ' in diameter, red or green, often slightly 5-angled, pruinose ; nutlets 5, grooved on the back ; stamens 20 ; anthers rose color ; leaves blue-green, subcoriaceous, nearly glabrous. V. Pruinosae (page 411). Fruit short-oblong to obovate, scarlet, 4^'-|' long, globose and greenish red in one species ; flesh succulent, sometimes juicy ; anthers rose color or purple ; leaves membranaceous, at maturity glabrous below. VI. Tenuifoliae (page 413). Fruit subglobose, oblong or pyriform, crimson, scarlet, or rarely yellow, usually about 1' in diameter; flesh thick, succulent, often edible; nut- lets usually 5, occasionally 4, thin, pointed at the ends, mostly obscurely 366 TREES OF NORTH AMERICA p;Tooved or ridij^ed on the back ; corymbs tonientose or pubescent ; leaves membranaceous to subcoriaceous, broad, rounded or cuueate at the base, at maturity usually pubescent or tomentose below. VII. Molles (page 422). Fruit oblong-, scarlet, i'-f ' long ; flesh succulent ; nutlets o-5, prominently grooved and usually ridged on the back ; corymbs glabrous or tomen- tose ; leaves membranaceous or rarely subcoriaceous, oblong, more or less acutely lobed ; anthers rose or purple. VIII. Flabellatae (page 442). Fruit sxibglobose to short-oblong, crimson or red tinged with green, about I' long, its calyx enlarged and prominent ; nutlets 5, prominently ridged on the back ; corymbs rarely few-flowered; stamens 20 ; anthers rose color ; leaves membranaceous, on vigorous shoots as broad or broader than long. IX. Dilatatae (page 455). •^ -^Leaves cuneate at the base. Corymbs many-flowered ; leaves subcoriaceous ; fruit subglobose, rarely ob- long, i'-|' long ; nutlets 2 or 3, obtuse at the ends, conspicuously ridged on the back ; corymbs glabrous or tomentose ; leaves dark green and lustrous above. X. Coccineee (page 459). Corymbs few-flowered {many-flowered in one species of Bracteatce) ; leaves membranaceous. Fruit subglobose to oblong, rarely more than ^' long, greenish or yellow- ish ; nutlets 3-5, rounded at the ends, conspicuously ridged on the back ; leaves subcoriaceous, yellow-green. XI. Iiitricatae (page 462). Fruit subglobose, rarely more than ^' long, red or orange-red ; nutlets 3-5, slightly grooved on the back ; stamens 20 ; anthers rose color ; leaves incisely lobed. XII. PulcherrimaB (page 466). Fruit subglobose to short-oblong, i'-f ' long; nutlets 3-5, narrowed at the ends, prominently ridged on the back ; corymbs in one species few- flowered, villose ; bracts lar^e and conspicuous ; calyx-lobes foliaceous; stamens 20 ; anthers yellow ; leaves coriaceous to subcoriaceous, dark green and lustrous, their petioles sparingly glandular through their whole length. XIII. Bracteatce (page 468). -H- -*- -1- -1- Petioles, leaves and corymbs conspicuously glandular ; corymbs few-flowered ; fruit subglobose to short-oblong or pyriform, ^'-f long, green, orange, or red, flesh usually hard and dry ; branchlets conspicuously zigzag. XIV. Flavae (page 471). **Veins of the leaves extending to the points of the lobes and to the sinuses ; corymbs many-flowered ; stamens 20. Fruit depressed-globose to oblong, not more than ^' long, scarlet ; nutlets 2-5, obtuse at the ends, prominently ridged on the back ; anthers rose color or purple. « XV. Microcarpae (page 486). Fruit subglobose, -^'—k' in diameter, blue or blue-black ; nutlets 3-5, obtuse at the ends slightly ridged on the back; leaves dark green and lustrous. XVI. Brachyacanthae (page 489). 2. Nutlets with longitudinal cavities on their ventral faces. Fruit pyriform to subglobose or short-oblong, J'—J' long, lustrous, orange or scarlet ; nutlets 2 or 3, obtuse at the ends, prominently ridged on the back ; leaves membranaceous to subcoriaceous, mostly pubescent below. XVII. Tomentosae (page 491). Fruit short-oblong to subglobose, ^' long, black ; nutlets 5, obtuse at the ends, obscurely ridged on the back ; stamens 20 ; leaves subcoriaceous. XVIII. DouglasianaB (page 502). EOSACEiE 367 I. CRUS-GALLI. Corymbs, leaves, and young branehlets slightly hairy while young, soon becoming glabrous {glabrous while young in 1, 6, 8, and 11). Stamens 10. Anthers rose color or purple. Leaves glabrous, obovate-cuneif orm, coriaceous, their veins within the parenchyma ; fruit short-oblong to subglobose, dull red often covered with a glaucous bloom. 1. C. Crus-galli (A). Leaves oblong to ovate, usually acute, coriaceous ; fruit short-oblong to subglobose, dark crimson, lustrous. 2. C. Canbyi (A). Leaves obovate, usually short-pointed at the broad apex, subcoriaeeous ; fruit short-oblong to obovate, bright scarlet. 3. C. Peoriensis (A). Leaves oblong-obovate to oval, or broadly ovate, their petioles glandular, with minute stipitate glands ; fruit short-oblong to subglobose, orange-red, villose until nearly fully grown. 4. C. fecunda (A). Anthers yellow. Leaves oval to elliptic, acute or acuminate, subcoriaeeous; fruit short-oblong, green tinged with red. 5. C. regalis (C). Leaves glabrous, obovate, acute, acuminate, or rounded at the apex, subcoriaeeous ; fruit short-oblong, dull dark crimson. 6. C. Arduennae (A). Leaves obovate to oblong-cuneiform, rounded or acute at the apex, subcoriaeeous ; fruit subglobose to obovoid, dull red, or green flushed with red. 7. C. algens (A, C). Leaves ovate to obovate, acute, comparatively thin, dull green above ; fruit sub- globose, flattened at the ends, dark dull crimson. 8. C. erecta (A). Leaves oval to oblong-obovate, acute or acuminate, comparatively thin; fruit short-oblong, full and rounded at the ends, bright scarlet. 9. C. acutif olia (A). Stamens 20. Anthers rose color ; leaves obovate to elliptic, broad and rounded or acute at the apex, coriaceous ; fruit short- oblong, green tinged with dark red. 10. C. Bushii (C). Anthers yellow ; leaves obovate to oblanceolate, acute or rounded at the apex, sub- coriaceous ; fruit globose to subglobose, red. 11. C. arborea (C). Corymbs, leaves, and branchlets more or less villose or pubescent throughout the season. Stamens 10. Anthers rose color ; leaves broadly obovate to elliptic coriaceous, scabrous above ; fruit globose, bright orange-red, with a yellow cheek. 12. C. Sngelmauni (A). Anthers yellow {doubtful in 13 and 14-) Leaves oval, oblong-obovate or elliptic, acute, thin to subcoriaeeous ; fruit globose to subglobose, orange-red. 13. C. denaria (C). Leaves obovate to obovate-cuneif orm, rounded or acute at the apex, thin ; fruit short- oblong, dark red, more or less pruinose. 14. C. signata (C). Leaves broadly oval to oblong, rounded or acute or short-pointed at the apex, coriaceous ; fruit subglobose, dull green tinged with red or cherry-red. 15. C. Palmeri (C). Stamens 20. Anthers rose color. Leaves oblong-obovate, acute, coriaceous, scabrate ; fruit short-oblong, dull green tinged with red, slightly pruinose. 16. C. edita (C). Leaves oblong to obovate-cuneif orm, rounded and obtuse or occasionally acute at the apex, coriaceous, glabrous or scabrate above ; fruit globose to subglobose or short-oblong, dark red. 17. C tersa (C). 368 TREES OF NORTH AMERICA Anthers yellow. Leaves oblong-obovate, rounded or gradually narrowed at the apex, subcoriaceous, pale below ; fruit subglobose, orange color, with a red clieek. 18. C. berberifolia (C). Leaves cuneate, oblong or obovate-cuneiform, rounded and obtuse or rarely acute at the apex, coriaceous', glabrate or slightly scabrous above ; fruit subglobose, orange or yellow, with a red clieek. 19. C. edura (C). Leaves oblong to obovate-cuneiform, rounded or acute at the apex, subcoriaceous, glabrous or glabrate above, pale below ; fruit oval to short-oblong, yellow. 20. C. crocina (C). Leaves oblong to obovate-cuneiform, rounded or obtuse or rarely truncate at the apex, coriaceous, scabrate above ; fruit globose to subglobose, bright red or scarlet. 21. C. fera (C). Leaves obovate, acute, thin to subcoriaceous ; fruit subglobose to short-oblong, somewhat flattened at the apex, bright orange-red. 22. C. Mohri (C). 1. Glabrous at maturity. *Stamens 10. —h Anthers rose color or purple. 1. Crataegus Crus-galli, L. Cock-spur Thorn. Leaves glabrous, obovate, acute or rounded at the apex, cuneate and gradually narrowed to the slender entire base, sharply serrate above, with minute appressed usually gland-tipped teeth, when they unfold tinged with red, membranaceous and nearly fully grown when the flowers open about the 1st of June, and at maturity thick and coriaceous, dark green and lustrous above, pale below, reticulate-veined, l'-4' long, \'-V wide, with slender midribs, and primary veins within the parenchyma, turning bright orange and scarlet in the autumn before falling; their petioles stout, wing-margined toward the apex, ^'-f long; on vigorous shoots acute or accu- minate, coarsely serrate, often 5'-6' long. Flowers f in diameter, on slender pedicels, in many-flowered glabrous corymbs; calyx-tube narrowly obconic, glabrous, the lobes linear-lanceolate, entire or minutely glandular-serrate; stamens 10; anthers rose color; styles usually 2, surrounded at the base by tufts of pale hairs. Fruit ROSACEA 369 ripening late in October and persistent on the branches until spring, short-oblong to subglobose, ^' long, dull red often covered with a glaucous bloom; flesh dry and mealy; calyx little enlarged; nutlets usually 2, full and rounded at the ends, pro- minently ridged on the back, with a high rounded grooved ridge, 1' long. A tree, sometimes 25° high, with a trunk a foot in diameter, and stout rigid spread- ing branches forming a broad round-topped head, glabrous, light brown or gray branchlets armed with stout straight or slightly curved sharp-pointed chestnut-brown or ashy gray spines 3'-4:' long and becoming on the trunks and large branches 6'-8' long and furnished with slender lateral spines. Distribution. Usually on the slopes of low hills in rich soil; valley of the St. Lawrence River near Montreal, southward to Delaware and along the Appalachian foothills to North Carolina, and westward through western New York and Pennsyl- vania to southern Michigan. A form, yar. pyracanthifolia, Ait., with narrower elliptical to obovate leaves acute or rounded at the apex, and slightly pubescent while young on the upper side of the midribs, and with rather smaller flowers and smaller bright red fruit, is not rare in eastern Pennsylvania and northern Delaware; a form, var. salicifolia, Ait., cultivated in European gardens, but not known in a wild state, with thinner narrower and more elongated lanceolate or oblanceolate leaves, should also probably be referred to this species. A form, var. oblongata, Sarg., with rather brighter colored oblong fruit often 1' long, and nutlets acute at the ends, is not rare near Wilmington, Delaware, and at Durham, Bucks County, Pennsylvania. A form, var. capillata, Sarg., with thinner leaves, slightly villose corymbs, and 1 or rarely 2 nutlets, occurs near Wilmington, Delaware. Often cultivated as an ornamental plant and for hedges in the eastern United States, and very frequently in the countries of eastern and northern Europe. 2. Crataegus Canbyi, Sarg. Leaves oblong-ovate to ovate or rarely obovate, acute or rarely rounded at the apex, gradually narrowed, cuneate and entire at the base, and coarsely and often doubly serrate above the middle, more than half grown when the flowers open about the 1st of May and then glabrous or very rarely with a few scattered hairs on the upper side of the midribs and on the corymbs, at maturity coriaceous, glabrous, dark 370 TREES OF NORTH AMERICA green and very lustrous above, pale and dull below, 2'-2^' long, I'-l^' wide, with thick pale midribs and 4 or 5 pairs of remote primary veins conspicuous on the lower surface; their petioles more or less winged above, glandular, with scattered dark red persistent glands, red below the middle, ^'-f' long; on vigorous leading shoots often deeply and irregularly divided into broad acute lobes, and frequently 3'^' long and 2' wide. Flowers |' in diameter, on long slender pedicels, in broad loose many- flowered long-branched corjanbs; calyx-tube narrowly obconic, the lobes entire or serrate, with minute scattered glandular teeth; stamens usually 10, occasionally 12 or 13; anthers, small, rose color; styles 3-5. Fruit ripening in October but per- sistent until after the beginning of winter, on elongated slender stems, in loose many-fruited drooping clusters, short-oblong to subglobose, full and rounded at the ends, with a distinct depression at the insertion of the stalk, lustrous, dark erimson, marked by occasional large pale dots, ^-f' long; calyx-lobes reflexed, closely appressed, often deciduous before the fruit ripens; flesh thick, bright red, very juicy; nutlets 3-5, prominently ridged, with broad rounded ridges, bright chestnut- brown, about ^' long. A bushy tree, sometimes 20° high, with a trunk 12'-18' in diameter, large ascend- ing wide-spreading branches forming a broad open irregular head occasionally 30°-35° in diameter, and branchlets armed with thick usually straight chestnut- brown spines f -1^' long. Distribution. Hedges and thickets, Wilmington, Delaware, to the shorei ef Chesapeake Bay, Maryland, and to eastern Pennsylvania. 3. Crataegus Peoriensis, Sarg. Leaves obovate, short-pointed or occasionally rounded at the broad apex, gradu- ally narrowed, cuneate and entire below, sharply and often doubly serrate usually f'/q.ZSS only above the middle, sometimes irregularly lobed, with short broad terminal lobes, when they unfold villose above, especially toward the base of the midribs, and bright bronze color, becoming at maturity thick and firm, glabrous, dark green and very lustrous above, pale below, l^'-2' long, |' wide, with 4 or 5 pairs of thin pri- mary veins conspicuous on the under side and extending obliquely from the slender midribs to the ends of the lobes; their petioles usually about ^' long, more or less ROSACEA 371 wing-margined and slightly glandular above the middle, and covered at first with short pale deciduous hairs; on vigorous shoots deeply divided into broad acute lateral lobes, 2'-3' long, and 1^' wide, with lunate, coarsely glandular-serrate stip- ules, sometimes 1' long. Flowers cup-shaped, about |' in diameter, on slender elongated pedicels, in broad loose compound many-flowered glabrous corymbs; calyx- tube narrowly obconic, the lobes narrow and acuminate, entire or irregularly gland- ular-serrate, pubescent below the middle on the inner surface; stamens 10; anthers small, rose color; styles 2 or 3, surrounded at the base by a narrow ring of pale tomentum. Fruit ripening early in October, on slender elongated pedicels, in drooping many-fruited clusters, oblong or obovate, full and rounded at the ends, slightly depressed at the insertion of the stalk, bright scarlet, marked by many small dark dots, ^'-f long; calyx-lobes enlarged, erect, incurved, and persistent; flesh thick, nearly white, firm and dry; nutlets 2 or 3, prominently ridged on the back, about ^' long. A nearly glabrous tree, 20°-25° high, with a trunk occasionally 1° in diameter, stout spreading branches forming a broad flat-topped symmetrical head, and branch- lets armed with straight or slightly curved thin dull chestnut-brown spines 2'-2^' long. Distribution. Open woods, the moist borders of streams and depressions in the prairie, and on hillsides in clay soil. Short and Peoria counties, Illinois. 4. Crataegus fecunda, Sarg. Leaves oblong-obovate to oval, or broadly ovate, acute or rarely rounded and short-pointed at the apex, gradually or abruptly narrowed below, and coarsely and usu- ally doubly serrate except toward the base, when they unfold dark green, lustrous and roughened above by short pale appressed caducous hairs and pale yellow-green r/ about f wide ; calyx small, with spreading appressed lobes mostly deciduous from the ripe fruit; flesh thin, hard, slightly juicy, green or greenish yellow; nutlets 3 or 4, thin, acute or obtuse at the ends, very prominently ridged on the back, with a high broad deeply grooved ridge, about ^ long. A tree, 20°-25° high, with a tall straight trunk often a foot in diameter, covered with dark brown scaly bark, stout wide-spreading branches forming a broad symmet- rical round or flat-topped head, slender straight branchlets light orange-green and sparingly villose at first, becoming light orange-brown during their first season, light or dark gray-brown the following year, and armed with numerous stout slender ROSACEA 391 straight orange-brown shining spines l^'-2' long, long persistent on the branches and trunk, finally ashy gray, and becoming sometimes a foot long, with long slender lateral spines. Distribution. Dry limestone hills and !bw moist bottom-lands, Bucks and Dela- ware counties, eastern Pennsylvania. 25. CrataBgus collina, Chapm. Leaves obovate to oval or occasionally to rhomboidal, acute, gradually narrowed or broadly cuneate at the entire base, and irregularly and often doubly serrate above^ with glandular incurved or straight teeth, when they unfold bright red and covered with soft pale hairs most abundant along the under side of the midribs and principal veins, less than one third grown when the flowers open at the end of April, and at maturity subcoriaceous, yellow-green on the upper surface, paler on the lower sur- face, glabrous with the exception of a few hairs on the under side of the stout yellow midribs and 4 or 5 pairs of slender primary veins, 1^-2' long, I'-l^' wide; their petioles slender, villose, soon glabrous, more or less winged toward the apex, ^'-l' long; on vigorous shoots frequently divided into short broad acute lateral lobes, more coarsely dentate and often 3' long and 2\' wide, with stout broadly winged petioles generally light red like the lower side of the base of the midribs. Flowers I' in diameter, on long stout pedicels, in broad many-flowered villose corymbs; calyx- tube broadly obconic, villose particularly toward the base, the lobes gradually nar- rowed from broad bases, acuminate, usually glabrous on the outer surface, villose on the inner surface, finely glandular-serrate, with dark glands, bright red toward the apex; stamens usually 20; anthers large, pale yellow; styles 5. Fruit ripening in September, on stout elongated pedicels, in few-fruited erect or drooping puberulous clusters, globose but sometimes rather broader than long, dull red, marked by small pale dots, \'-\' in diameter; calyx enlarged, prominent, the lobes closely appressed, glandular-serrate, mostly persistent; flesh yellow, dry and mealy; nutlets 5, broad and rounded at the ends, ridged and often grooved on the back, about \' long. A tree, usually 15°-20° but occasionally 25° high, with a tall straight stem often buttressed at the base, frequently armed with numerous large much-branched spines sometimes 6'-8' long, stout wide-spreading branches forming a handsome flat-topped 392 TREES OF NORTH AMERICA symmetrical head, and branclilets tinged with red and villose, with long matted silky white hairs, when they first appear, soon puberulous, and furnished with stout lustrous spines 2'-3' long. Distribution. Hillsides in rich soil iTi the foothill region of the southern Appa- lachian Mountains from soutiiwestern Virginia to central (ieorgia and Avestward to middle Tennessee and central Alabama, ascending to elevations of 2500° above the sea. 26. Cratcegus amnicola, Beadl. Leaves obovate, oval or ovate, acute or acuminate at the apex, gradually narrowed and concave-cuneate at the entire base, coarsely sometimes doubly serrate above, with straight or incurved glandular teeth, and incisely lobed above the middle, with short acute or acuminate lobes, when they unfold deeply tinged with red and covered with short pale mostly caducous hairs, about half grown and sparingly villose on the midribs and veins when the flowers open late in April or early in May, and at maturity subcoriaceous, bright green, glabrous, l^'-l^ long, X'-l\' wide, and on vigorous shoots sometimes 2' long and 1^' wide, turning in the autumn yellow, orange, red, and brown ; their petioles slender, broadly wing-margined at the apex, spar- ingly villose at first, becoming glabrous, sometimes slightly glandular, \'-^' long. Flo"wers about f in diameter, on elongated slender slightly villose pedicels, in narrow compound many-flowered villose corymbs; calyx-tube narrowly obconic, glabrous or with a few scattered hairs at the base, the lobes narrow, acuminate, glandular-serrate, glabrous; stamens 20; anthers nearly white; styles 3-5. Fruit on slender elongated glabrous pedicels, in drooping few-fruited clusters, subglobose, dull red, about ^' in diameter; calyx enlarged, with elongated coarsely serrate re- flexed conspicuous lobes; flesh yellow, thin, and firm; nutlets 3-5, rounded or slightly grooved on the back, nearly ^ long. A tree, occasionally 25° high, with a trunk 8'-12' in diameter, spreading or ascend- ing branches forming a large wide head, and branchlets villose at first, with long matted white hairs, soon glabrous, becoming orange-brown and ultimately ashy gray, and unarmed, or armed with stout spines l^'-2' long. Distribution. Low moist woods and the borders of streams, southeastern Ten- nessee, northwestern Georgia, and northeastern Alabama; common. ROSACEiE 393 27. Crataegus fastosa, Sarg. Leaves broadly oval to ovate, rounded or acute at the apex, concave-cuneate or rounded at the entire base, coarsely doubly serrate above, with straight glandular teeth, and rarely on vigorous shoots slightly lobed, with broad acute lobes, when they unfold covered above with long pale hairs and provided below with large tufts of snow-white toraentum in the axils of the primary veins, when the flowers open from the 20th to the 2oth of April dark yellow-green and nearly glabrous on the upper surface and still tomentose in the axils of the veins below, and at maturity subcori- aceous, glabrous, yellow-green and lustrous above, pale yellow-green below, l|'-2' long, l'-2' wide, with prominent light yellow midribs deeply impressed on the upper side, and usually 3-5 pairs of primary veins; their petioles slender, slightly wing- margined toward the apex, at first densely villose, becoming puberulous, ^'-f' long. , Flowers about |' in diameter, on slender pedicels, in compact many-flowered glabrous corymbs, with large conspicuous oblong-obovate and acute to lanceolate r'^.(3?2 coarsely glandular-serrate bracts and bractlets usually persistent until after the petals fall; calyx broadly obconic, the lobes abruptly narrowed at the base, slender, acuminate, coarsely glandular-serrate, glabrous on the outer, villose on the inner surface; stamens 20; anthers pale yellow; styles 5, surrounded at the base by a broad ring of pale tomentum. Fruit ripening from the middle to the end of Octo- ber, on thin reddish pedicels, in few-fruited drooping clusters, subglobose to short- oblong, dull orange-red, marked by large pale dots, |' in diameter; calyx enlarged, with spreading serrate lobes villose on the upper side, mostly deciduous from the ripe fruit; flesh thin, yellow-green, dry and mealy; nutlets 3-5, thin, narrowed at the ends, obscurely ridged on the back, with a broad low often grooved ridge, about tV long. A tree, 18°-20° high, with a short trunk 8'-12' in diameter, covered with dark brown or nearly black scaly bark, small ascending branches forming an irregular open head, and slender nearly straight branchlets, dark orange-green tinged with red when they first appear, becoming before autumn bright reddish brown and very lustrous, and dull reddish brown the following year, and armed with numerous stout nearly straight bright chestnut-brown shining spines 1^' to 2' long. Distribution. Low woods near Fulton, Arkansas, in the valley of the Red River; not common. 394 TREES OF NORTH AMERICA 28. Crataegus verruculosa, Sarg., n. sp. Leaves obovate to rlioinboidal, acute or rarely rounded at the apex, cuneate and entire at the base, and sharply often doubly serrate above, with straight or incurved glandular teeth, when they unfold dark red, covered above by short pale hairs and below by long matted white hairs most abundant on the midribs and veins, about half grown when the flowers open from the 1st to the 10th of May and then thin, dark yellow-green, and scabrate on the upper surface and paler and pubescent on the lower surface, and at maturity subcoriaceous, dark green, lustrous, and nearly smooth above, pale and still pubescent below on the stout midribs and conspic- uous primary veins extending very obliquely toward the end of the leaf, 1^-2' long, I'-lj wide; their petioles stout, wing-margined at the apex, at first villose, becoming pubescent or puberulous, \'-^ long; on vigorous shoots often broadly ovate to oval, sharply doubly serrate, with straight teeth, sometimes slightly lobed above the middle, with short acute lobes, and frequently 3' long and 2' wide. Flo"wers |' in diameter, on long slender villose pedicels, in broad lax com- pound 6-12 usually 9-flowered villose corymbs, with reddish purple minutely gland- ular caducous bracts and bractlets; calyx-tube broadly obconic, thickly covered with matted pale hairs, the lobes gradually narrowed from broad bases, slender, acute, tinged with red at the apex, sparingly glandular-serrate, pubescent; stamens 20; anthers pale rose color; styles 3-5 surrounded at the base by a broad ring of long pale hairs. Fruit ripening the 1st of October, on stout pubescent pedicels, in drooping few-fruited clusters, subglobose, somewhat flattened and pubescent at the ends, dark red; calyx prominent, with more or less deciduous lobes; nutlets 3-5, narrowed and acute at the ends, rounded and very irregularly ridged and sometimes obscurely grooved on the back, about \' long. A tree, 20°-25° high, with a tall trunk 10'-12' in diameter, thick spreading branches forming a broad compact round-topped symmetrical head, and stout nearly straight branchlets thickly covered with matted pale hairs when they first appear, be- coming reddish or orange-brown, nearly glabrous and roughened by minute tubercles at the end of their first season, gray-brown the following year, and armed with numer- ous straight stout or slender dark chestnut-brown very lustrous spines |'-1' long. Distribution. Springfield, Missouri; not rare. ROSACEA 395 29. Crataegus sordida, Sarg. Leaves rhomboidal, acute, or occasionally obovate and very rarely rounded at the apex, cuneate and entire below, serrate above, with narrow straight or incurved glandular teeth, and occasionally irregularly divided above the middle into short acute lobes, about half grown when the flowers open the first week of May and then membranaceous, bright green, lustrous and glabrous with the exception of a few short caducous hairs on the upper surface, particularly along the midribs and principal veins, and at maturity subcoriaceous, dark green and lustrous above, paler below, generally about 1^' long and 1^' wide ; their petioles stout, slightly winged toward the apex, at first villose, soon glabrous, about ^' long, often bright red in the autumn; on vigorous shoots sometimes oblong or oval, coarsely dentate, usually divided above the middle into short acute lobes, 3'-4' long, 2'-2y wide, and decurrent on the stout glandular petioles. Flo-wers I'-l^' in diameter, on slender pedicels, in few-flowered compact slightly villose corymbs; calyx-tube narrowly obconic, the lobes narrow, acuminate, villose on the inner surface; petals dull sordid white ; stamens 20; anthers small, rose color; styles 2 or 3, sur- rounded at the base by a narrow ring of pale hairs. Fruit ripening and falling the middle of September, on short pedicels, in few-fruited drooping clusters, globose, ^'~^' in diameter, dark dull red; calyx prominent, with elongated coarsely serrate appressed or incurved lobes; flesh thin, yellow, dry and mealy; nutlets 2 or 3, broad, rounded and ridged on the back, with a low rounded ridge, ^' long, A slender tree, 20°-25° high, with a tall trunk S'-G*" in diameter, often armed with long-branched spines, small ascending branches forming a narrow oval head, and slender nearly straight branchlets, at first dark orange-green and villose, with long scattered pale hairs sometimes persistent until autumn, and furnished with numerous thin nearly straight bright chestnut-brown shining spines 1-2-^' long, or often unarmed. Distribution. Low woods and the gravelly banks of streams; Ripley County, southeastern Missouri. 30. Crataegus Brazoria, Sarg. Leaves oval to obovate, acute or acuminate, gradually narrowed, cuneate and entire at the base, and coarsely and irregularly glandular-serrate above, with straight 396 TREES OF NORTH AMERICA spreading teeth, when they unfold coated with hoary tomentum and often bright red, nearly fully grown and covered with short soft pale hairs most abundant on the under side of the thin midribs and 3 or 4 pairs of primary veins when the flowers open from the middle to the end of March, and at maturity thin and firm in texture, gla- brous, dark green and lustrous above, paler below, 2'-2y long and l^'-l^' wide; their petioles slender, more or less winged toward the apex, at first tomentose, be- coming glabrous or pnberulous, ^'-f long; on vigorous shoots broadly ovate or oblong, full and rounded or broadly cuneate at the base, very coarsely dentate, 5' long and 2^' wide. Flowers |' in diameter, on slender elongated pedicels, in broad slightly villose 7 or 8-flowered corymbs; calyx-tube narrowly obconic, coated with long matted pale hairs, the lobes narrow, acuminate, obscurely glandular-serrate or nearly entire, villose on both surfaces; stamens 20; anthers small, dark red; styles 5, surrounded at the base by a thin ring of hoary tomentum. Fruit ripening after the 1st of October, in spreading or drooping few-fruited clusters, subglobose and often rather longer than broad, bright canary-yellow, marked by occasional dark dots, \'-^' long; calyx prominent, the lobes usually deciduous before the fruit ripens; flesh thin, light yellow, rather dry but sweet and edible, nutlets 5, rounded and grooved on the back, ^' long. A tree, 20°-2o° high, with a tall straight trunk 8'-10' in diameter, numerous ascending branches forming a handsome symmetrical round-topped head, and . branchlets covered when they first appear with matted pale hairs, soon glabrous, and unarmed or occasionally armed with long thin gray spines. Distribution. Low rich woods near the banks of the Brazos Kiver, Brazoria, Texas. 31. Crataegus Dallasiana, Sarg. Leaves oblong, acute, acuminate or rounded at the apex, gradually narrowed to the concave-cuneate entire base, coarsely doubly serrate above, with straight glandu- lar teeth, and usually slightly lobed above the middle, coated below with thick hoary tomentum and villose above as they unfold, nearly fully grown and villose or tomen- tose below when the flowers open early in April, and at maturity thin but firm in texture, dark yellow-green, glabrous and lustrous on the upper surface, pale and pubescent on the lower surface along the slender midribs and 3 or 4 pairs of thin ROSACEiE 397 arching veins, l|'-2y long and 1|^'-1^' wide; their petioles slender, wing-raargined toward the apex, hoary-tomentose early in the season, becoming glabrous, about ^' long. Flowers about |' in diameter, on long slender hairy pedicels, in many-flow- ered densely villose compound corymbs; calyx-tube narrowly obconic, densely coated with long matted pale hairs, the lobes slender, acuminate, tipped with minute red glands, sparingly and irregularly glandular-serrate, villose; stamens 20; anthers light rose color; styles 5. Fruit ripening at midsummer, on stout erect slightly hairy pedicels, in few-fruited clusters, subglobose, dull dark red, f'-^' in diameter; calyx prominent, with spreading lobes bright red on the upper side at the base; nutlets 5, acute at the narrowed ends, thin, rounded and grooved, with a broad shal- low groove, or irregularly ridged on the back, ^-y%' long, A tree, 20°-25° high, with a tall trunk 4'-6' in diameter, covered with pale bark, slightly erect branches forming an open irregular head, and slender somewhat zig- zag branchlets thickly coated at first with hoary tomentum, reddish brown and lustrous before autumn, ultimately ashy gray, and armed with straight slender gray spines l^'-l^' long. Distribution. Forest-covered bottom-lands of the small tributaries of the Trinity River, Dallas County, Texas; not common. 32. Crataegus Lettermani, Sarg. Leaves obovate, acute or acuminate or rounded and short-pointed at the apex, gradually narrowed from near the middle and cuneate at the mostly entire base, coarsely and often doubly serrate above, with straight or incurved glandular teeth, frequently slightly and irregularly divided above the middle into 3 or 4 pairs of short acute lobes, strongly plicate when they unfold and covered with a thick coat of pale tomentum, nearly half grown, roughened above by short pale hairs and pubescent below when the flowers open early in May, and at maturity thick and firm in tex- ture, bright yellow-green and scabrous above, pale and pubescent below along the stout midribs and 4 or 5 pairs of primary veins, and about 2' long and 1\' wide; their petioles stout, more or less winged above the middle, at first tomentose, becoming pubescent or nearly glabrous, usually about |' long; on vigorous shoots broadly oval, acute or acuminate, more coarsely serrate, 2^'-3' long, 2'-2^' wide, with broad lunate 398 TREES OF NOKTH AMEKICA coarsely glandular-serrate stipules frequently ^' in length. Flovirers about |' in diameter, in compact many-tiowered thick-branched tomentose coi'ynibs; calyx-tube narrowly obconic and tomentose, the lobes narrow, acuminate, finely glandular-ser- rate, villose; stamens 10; anthers small, pale yellow; styles 5, surrounded at the base by a broad ring of hoary tomentum. Fruit ripeinng early in October, on stout pubescent pedicels, in few-fruited spreading or drooping clusters, subglobose or occasionally slightly obovate, full and rounded and puberulous at the ends, dull orange-red, marked by large pale dots, about ^' in diameter; calyx broad, the lobes enlarged, coarsely glandular-serrate, reflexed, often deciduous before the fruit ripens; flesh thin, dry and mealy; nutlets 5, prominently ridged on the back, with a high rounded ridge, dark brown, ^' long. A tree, 18°-20° high, with a trunk 6'-8' in diameter, with thin dark brown or nearly black bark separating freely into small plate-like scales, and often armed with thin much-branched spines frequently T-S' long, small erect branches forming a wide open head, and branchlets coated when they first appear with hoary tomentum, dull red-brown, villose or pubescent during their first season, and furnished with stout straight bright red-brown shining spines l^'-2' long. Distribution. Low rich soil inundated during several weeks in winter, among Oaks and Hickories; near Allenton, Missouri. 33. Crataegus pratensis, Sarg. Leaves oblong-obovate, acute or rounded at the apex, gradually narrowed below from near the middle to the cuneate and entire base, sharply and often doubly ser- rate usually only above the middle, with straight or incurved teeth tipped early in the season with minute dark red caducous glands, and often more or less deeply divided toward the apex into short broad acute lobes, when they unfold bright bronze-yellow or dark red, and covered with short pale hairs, almost smooth and nearly fully grown when the flowers open at the end of May, and at maturity glabrous, thick and firm, dark green and lustrous above, pale below, 1^-2' long, V-1^' wide, with thin midribs and 4 or 5 pairs of primary veins extending obliquely toward the end of the leaf and raised and prominent below; their petioles slender, glabrous, more or less winged toward the apex, usually about ^ long; on vigorous shoots often oval or broadly ovate, frequently 3' long and 21' wide, with foliaceous lunate stalked coarsely glandular- ROSACEA 399 dentate stipules often V in length. Flo"wers y in diameter, on slender elongated pedicels, in broad loose many-flowered compound corymbs pubescent or puberulous at first but soon glabrous ; calyx-tube narrowly obconic, coated toward the base with long matted pale hairs, the lobes narrow, acuminata, coarsely glandular-serrate, gla- brous on the outer surface, villose on the inner surface; stamens 10; anthers small, rose color; styles 2 or 3, surrounded at the base by a narrow ring of pale tomentum. Fruit ripening early in October and remaining on the branches until November, on elongated pedicels, in loose drooping many-fruited clusters, globose, bright scarlet, slightly pruinose, marked by occasional large pale dots, about ^' in diameter; calyx prominent, with much enlarged coarsely glandular-serrate lobes, often deciduous be- fore the fruit becomes entirely ripe; flesh thin, yellow, dry and mealy; nutlets 2 or 3, thick and broad, rounded and conspicuously ridged on the back, with a prominent grooved ridge, about ^' long. A tree, occasionally 20° high, with a tall trunk 3'-7' in diameter, often armed with long slender much-branched ashy gray spines, spreading branches forming a round- topped symmetrical head, and branchlets occasionally slightly villose when they first appear, soon glabrous, and furnished with numerous thin straight or slightly curved shining chestnut-brown spines 2'-2^' long. Distribution. Open woods near the banks of small streams in the prairie region of Stark and Peoria counties, Illinois. III. ^STIVALES. 34. Crataegus eestivalis, T. & G. May Haw. Apple Haw. Leaves elliptical to oblong-cuneiform, acute or rounded at the apex, gradually narrowed and entire below, irregularly sinuate-toothed or angled above the middle, or crenately serrate, with minute gland-tipped teeth, when they unfold covered above with deciduous pale hairs and coated below with dense hoary tomentum rufous on the midribs and veins, and at maturity subcoriaceous, dark green, lustrous, glabrous or sometimes scabrate above and clothed below, especially along the broad midribs and primary veins, with thick rusty pubescence, 1^-2' long and ^'-1' wide; their petioles at first rusty-tomentose, becoming pubescent, \'-l' long; on vigorous shoots 400 TREES OF NORTH AMERICA sometimes unequally 3-lobed by deep narrow lateral sinuses. FloTvers appearing with the unfolding of the leaves in February and early Mareli, 1' in diameter, on long slender pedicels, in 2-5-tlowered simple glabrous corymbs; calyx-tube broadly obconic to subglobose, glabrous, the lobes nearly triangular, entire or minutely glandular-serrate, often flushed with red toward the apex. Fruit ripening in May, on slender pedicels, in 1-3-fruited clusters, depressed-globose, very fragrant, bright red, dotted with pale spots, ^'-f in diameter; calyx prominent, with enlarged in- curved mostly persistent lobes; flesh thick, juicy, subacid; nutlets 3-5, rounded at the ends, prominently ridged, with a high narrow or rounded and slightly grooved ridge, 1' long. A tree, 20°-30° high, v^dth a trunk 12'-18' in diameter, sometimes tall and straight or divided close to the surface of the ground into several large upright stems forming a round compact bushy head, and branchlets covered at first with rufous or occasionally pale hairs, becoming at the end of their first season glabrous, lustrous, bright red or sometimes light brown, and often unarmed or armed with stout straight shining spines I'-l^ long. The fruit is gathered in large quantities and is made into preserves and jellies. Distribution. Moist sandy soil near the margins of streams and Pine-barren ponds, often submerged during several weeks in winter; northern Florida and through the Gulf states to southern Arkansas and the valley of the Sabine River, Texas; comparatively rare in the Atlantic states; most common and of its largest size in western Louisiana and eastern Texas. IV. VIRIDES. Stamens 20. Anthers pale yellow {color not known in 4^). Fruit not exceeding ^ in diameter. Leaves ovate to oblong'-obovate, acute or acuminate, or sometimes rounded at the apex ; fruit depressed-globo^se, bright scarlet or orange. 35. C. viridis (A, C). Leaves ovate, acute, often broadly cuneate at the base ; fruit subglobose. orange-red. 36. C. ovata (A). Leaves oval or ovate, acute, rounded or broadly cuneate at the base ; fruit globose, yellow-green flushed with red. 37. C. vulsa (C). ROSACEA 401 Leaves oblong'-ovate to semiorbicular, acute, often sliort-pointed or rarely rounded at the apex, subcoriaeeous ; fruit short-oblong to obovate or globose, dull orange color. 38. C. glabriuscula (C) Leaves oval to rhomboidal, acute or acuminate ; fruit subglobose to short-oblong bright orange-red. 39. C. blanda (C). Fruit i'-f ' in diameter. Leaves lanceolate to oblong-obovate, acuminate ; fruit short-oblong, dull brick red covered with a glaucous bloom. 40. C. nitida (A). Leaves obovate to oval or rhomboidal, acute or rarely rounded at the apex ; fruit subglobose to short-oblong, dark crimson. 41. C. mitis (A). Leaves ovate, acute, usually broad and rounded at the base ; fruit subglobose to short- oblong, dark red. ^ 42. C. atrorubens (A). Anthers purple or rose color. Leaves obovate, oval or ovate, acute ; fruit globose to subglobose, red ; anthers bright purple. 43. C. ingens (C). Leaves broadly obovate, oval or ovate, acute or acuminate ; fruit globose or depressed- globose ; anthers pale rose color. 44. C. penita (C.) Stamens usually 10, occasionally 12-20 ; anthers bright red ; leaves oblong-obovate to oval, usually acute or acuminate j f ryit subglobose to short-oblong, bright orange-red. 45. C. micracantha (C). *Stamens 20. -^Anthers pale yellow. 35. Crataegus viridis, L. Leaves ovate to oblong-obovate, acute or acuminate or sometimes rounded at the apex, gradually narrowed to the cuneate wedge-shaped base, finely serrate above, with incurved glandular teeth, and sometimes 3-lobed toward the apex, especially on vigorous shoots, tinged with red and slightly hairy above when they unfold, nearly fully grown when the flowers open, and at maturity membranaceous to subcoriaeeous, dark green and lustrous on the upper surface, paler on the lower surface, with large Nsfi~^ axillary tufts of pale hairs, l'-3' long, \'-'^\' wide, with thick midribs and conspicu- ous primary veins ; often turning brilliant scarlet late in the autumn before falling; their petioles slender, I'-l^ long. Flo"wers ^' in diameter, on long slender pedicels, in many-flowered glabrous corymbs ; calyx-tube narrowly obconic, glabrous, the lobes 402 TKEES OF NORTH AMERICA lanceolate, entire; stamens 20; anthers pale yellow; styles 2-5, usually 5, surrounded at the base by conspicuous tufts of pale hairs. Fruit ripening in the autumn and mostly persistent on the branches through the winter, on long slender pedicels, in drooping many-fruited clusters, depressed-globose, bright scarlet or orange, \'-\' in diameter; calyx little enlarged, the lobes often deciduous from the ripe fruit; flesh thin and dry; nutlets usually 5, narrowed and rounded at the ends, rounded and slightly grooved or ridged on the back, ^^g'-^' long. A tree, 20°-35° high, with a straight often fluted trunk 8°-12° tall and 18'-20' in diameter, covered with gray or pale orange-colored bark, spreading branches forming a round rather compact head, and slender glabrous bi'anchlets ashy gray to light red- brown in their first winter, and unarmed or occasionally armed with slender sharp pale spines |'-1' long. Distribution. Borders of streams and swamps in low moist soil; valley of the Savannah River, South Carolina, to western Florida, through the Gulf states and northward to the neighborhood of St. Louis, Missouri, and to the valley of the Colo- rado River, Texas; rare in the east; abundant and of its largest size in western Louisiana and eastern Texas, often forming great thickets. 36. Crataegus ovata, Sarg., n. sp. Leaves ovate, acute, broadly or acutely concave-cuneate at the entire base, coarsely often doubly serrate above, with glandular teeth, and occasionally slightly divided into short lateral lobes, nearly fully grown when the flowers open early in May and then dark green, very smooth and glabrous above with the exception of a few short scattered hairs near the base of the midribs, paler below, with small per- sistent axillary tufts of white hairs, and at maturity membranaceous, 2-21' long and 1^-2' wide, with slender yellow midribs and primary veins; their petioles slender, slightly winged at the apex, rose-colored in the autumn, about f long; on vigorous shoots rounded or truncate at the broad base, coarsely serrate and sonietimes 3' long and broad. Flowers about 1' in diameter, on long slender pedicels, in broad loose many- flowered glabrous compound corymbs; calyx-tube narrowly obconic, glabrous, the lobes broad, acute, entire or coarsely glandular-serrate toward the apex, glabrous; styles 5. Fruit ripening in October, on elongated pedicels, in long drooping clusters, ROSACEA 403 subglobose or a little longer than broad, orange-red, \'--^^ long; calyx enlarged, with elono-ated closely appressed lobes sometimes deciduous from the ripe fruit; flesh thin, dry and mealy; nutlets 5, acute at the ends, rounded or slightly ridged on the back, about y\' long. A tree, 25°-30° high, with a tall trunk sometimes a foot in diameter, covered with smooth gray bark, slender glabrous branchlets light reddish brown and lustrous dur- ing their first year, becoming grayish brown in their second season, and unarmed or armed with occasional dark purple slender slightly curved shining spines 1' long. Distribution. Low moist soil on the banks of the River Desperes, St. Louis, Missouri (John D. Kellogg, October 1901, May 1902). 37. Crataegus vulsa, Beadl. Leaves oval or ovate, acute, full and rounded or broadly cuneate at the entire base, irregularly and often doubly serrate above, with straight or incurved gland- tipped teeth, and often divided into several short acute lateral lobes, when they unfold dark bronze-red and pilose, with scattered caducous hairs, and with tufts of pale h^.(322 often persistent hairs in the axils of the principal veins, nearly fully grown when the flowers open late in April, and at maturity thin, bright green on the upper surface, paler ou the lower surface, about 2' long and 1^' wide, with slender midribs and 4 or 5 pairs of thin pale yellow primary veins, turning in the autumn yellow or brown; their petioles slender, somewhat villose at first, soon becoming glabrous, about ^' long; on vigorous shoots broadly ovate, acute or acuminate, full and rounded or occasionally truncate and broadly cuneate at the base, more coarsely dentate and more deeply lobed, often 3' long and 2-^' wide, with stout winged glandular petioles and narrow falcate acuminate glandular stipules. Flo"wers |' in diameter, on slen- der pedicels, in compact compound 3-10-flowered glabrous corymbs, with linear acu- minate glandular red bracts and bractlets; calyx-tube broadly obconic, glabrous, the lobes gradually narrowed from broad bases, acuminate, entire or occasionally ob- scurely serrate toward the apex, glabrous; stamens 20; anthers pale yellow; styles 3-5, surrounded at the base by a thin ring of pale hairs. Fruit ripening at the end of September or early in October, on slender pedicels, in few-fruited drooping clus- ters, globose, yellow-green flushed with red, y in diameter, the calyx prominent, with 404 TREES OF NORTH AMERICA closely appressed lobes; flesh yellow-green, thin, dry and mealy; nutlets 3-5, thin, rounded, sometimes slightly ridged and grooved on the back, about ^^' long. A tree, occasionally 20"^ high, with a tall trunk 5'-0' in diameter, covered with thin fissured bark separating into liglit gray scales tinged with brown, and often armed with long compound spines, ascending or spreading branches forming an oval usually compact symmetrical head, and slender nearly straight glabrous branchlets furnished with thin nearly straight bright chestnut-brown shining spines I'-l^' long; sometimes a shrub, with numerous stems. Distribution. l\icli moist soil in the neighborhood of streams; northwestern Georgia and northeastern Alabama. 38. Crataegus glabriuscula, Sarg. Leaves oblong-ovate to semiorbieular, acute or often short-pointed or rarely rounded at the apex, gradually narrowed from below the middle to the slender en- tire base, coarsely and often doubly serrate usually only above the middle, with broad straight gland-tipped teeth, and sometimes divided toward the apex into 2 or 3 short acute lobes, nearly fully grown when the flowers open the 1st of April, and then membranaceous and slightly pilose above, with scattered hairs most abundant along the base of the midribs, and at maturity subcoriaceous, hard and firm, dark green and lustrous on the upper surface, pale on the lower surface, l^'-2' long, |'-1' wide, with thin light yellow midribs and primary veins extending obliquely toward the end of the leaf, conspicuous secondary veins and reticulate veinlets; their petioles slender, wing-margined, |' long; on vigorous shoots often ovate, broadly cuneate at the base, much more coarsely dentate and more frequently lobed, 2'-2^' long and wide, their stipules foliaceous, lunate, coarsely glandular-serrate, sometimes 1' broad. Flowers about 1' in diameter, on long slender glabrous pedicels, in few-flowered rather compact glabrous corymbs; calyx-tube broadly obconic, glabrous, the lobes short, gradually narrowed from broad bases, entire, villose on the upper surface; stamens 20; anthers nearly white; styles 5. Fruit ripening in September and often persistent until late into the winter, on long slender pedicels, in compact many- fruited drooping clusters, short-oblong to obovate or nearly globose, dull orange color, marked by minute dark dots, about \' long; calyx enlarged, conspicuous, with spreading or closely appressed lobes, dull red on the upper side at the base, often KOSACE^ 405 deciduous before the fruit ripens; flesh very thin, yellow, dry and hard; nutlets 5, rounded and sometimes obscurely grooved on the back, about ^q' long. A tree, 20°-25° high, with a tall straight trunk often a foot in diameter, covered with thin dark brown scaly bark, long ascending branches forming a narrow head, and slender nearly straight branchlets unarmed or armed with occasional slender straight chestnut-brown lustrous spines |'-1' long. Distribution. Bottom-lands of the Trinity River and its branches near Dallas, Texas, in forests of Elms and Nettle-trees. 39. Crataegus blanda, Sarg. Leaves oval to rhomboidal, acute or acuminate, and occasionally slightly lobed toward the apex, broadly cuneate or concave-cuneate at the entire base, coarsely crenately serrate above the middle, with gland-tipped teeth, coated with soft pale hairs when they unfold, fully grown when the flowers open about the 1st of May, and then membranaceous, dark green and lustrous above and glabrous below with the exception of large axillary tufts of snow-white tomentum, and at maturity sub- coriaceous, yellow-green and lustrous on the upper surface, paler on the lower sur- face, 1^-2' long, I'-iy wide, with slender midribs and 2 or 3 pairs of thin primary veins extending very obliquely toward the end of the leaf; their petioles slender, slightly winged above, at first villose along the upper side, soon becoming gla- brous, I'-l' long; on vigorous shoots often broadly ovate, full and rounded at the base, more deeply lobed above the middle, 2'-2i' long and l|'-2' wide. Flowers i' in diameter, on slender elongated pedicels, in broad many-flowered compound glabrous corymbs, with linear entire bracts and bractlets; calyx-tube broadly ob- conic, glabrous, the lobes gradually narrowed from broad bases, acuminate, entire or obscurely dentate, glabrous; stamens 20; anthers canary-yellow; styles 5. Fruit ripening about the middle of October, on slender pedicels, in many-fruited droop- ing clusters, subglobose to short-oblong, bright orange-red, ^' in diameter ; calyx prominent, with spreading lobes usually deciduous from the ripe fruit ; flesh thin, yellow, dry and mealy ; nutlets 5, thin, narrowed at the ends, deeply grooved on the back, ^' long. An unarmed tree, 25°-30° high, with a tall trunk 10'-12' in diameter, covered with dark brown or nearly black bark divided by shallow fissures and broken on the 406 TKEES OF NOllTH AMERICA surface into small plate-like scales, stout ascending branches forming a broad irreg- ular head, and nearly straight glabrous branchlets dark orange-green at first, be- coming dull red-brown during their lirst season and darker brown the following year. Distribution. Dry uplands and low rolling hills near Fulton, Arkansas, in the valley of the Red River. 40. Crataegus nitida, Sarg. Leaves lanceolate to oblong-obovate, acuminate, abruptly or gradually narrowed and cuneate at the entire base, coarsely serrate above, with straight or incurved glandular teeth, and often more or less divided into 2 or 3 pairs of broad acute lobes, when they unfold dark red and slightly villose along the upper side of the midribs, with scattered caducous hairs, nearly fully grown when the flowers open early in May, and at maturity thick and coriaceous, dark green, very lustrous on the upper surface, pale and dull on the lower surface, 2 '-3' long, and I'-l^' wide, with prominent midribs usually red on the lower side and few thin prominent pri- mary veins generally extending to the points of the lobes, turning in the autumn rich orange color through shades of bronze and orange-red; their petioles stout, gland- ular, more or less winged above, villose while young on the upper side, soon becom- ing glabrous, ^'-f long; on vigorous shoots more deeply lobed and frequently 5' long and 21' wide, with lunate stipitate coarsely glandular stipules occasionally ^' long. Flowers |' in diameter, on slender elongated pedicels, in broad compound many-flowered glabrous corymbs; calyx-tube narrowly obconic, glabrous, the lobes slender, elongated, acuminate, entire or sparingly glandular-serrate; stamens 15- 20; anthers pale yellow; styles 2-5. Fruit ripening at the end of October, on slender elongated pedicels, in many-fruited drooping clusters, oblong, full and rounded at the ends, pruinose, with a glaucous bloom, marked by small dark dots, ^'-|' long and about ^ thick; calyx only slightly enlarged, the lobes dark red at the base on the upper side, usually erect, often deciduous before the fruit ripens; flesh thick, yellow, dry and mealy; nutlets 2-5, rounded and ridged on the back, with a broad low rounded ridge, light-colored, ^' long. A tree, 30° high, with a tall straight trunk sometimes 18' in diameter, covered with close dark bark broken into thick plate-like scales, stout spreading lower ROSACEiE 407 branches and erect upper branches forming a broad often irregular head, and slender glabrous branchlets bright orange-brown and lustrous during their first and second seasons, becoming pale reddish brown in their third year, and ultimately ashy gray, and unarmed or armed with occasional straight thin bright chestnut-brown lustrous spines I'-l^' long. Distribution. Bottoms of the Mississippi River, Illinois, opposite the city of St. Louis; common. 41. CraEBtgus mitis, Sarg., n. sp. Leaves obovate to oval or rhomboidal, acute or rarely rounded at the apex, gradually narrowed and concave-cuneate at the entire base, and coarsely serrate above, with straight glandular teeth, nearly fully grown when the flowers open during the first week of May, and then light yellow-green above, paler below, and glabrous with the exception of a few short hairs on the upper side of the midribs, and at maturity subcoriaceous, dark green and lustrous on the upper surface, pale yellow- green on the lower surface, 1^-21' long, V-1^' wide, with prominent midribs and slender primary veins; their petioles stout, wing-margined at the apex, occasionally glandular, with minute glands, 1^-1^ long. Flo-wers ^'-|' in diameter, on long slender pedicels, in compact compound 8-15-flowered glabrous corymbs, with red glandular bracts and bractlets; calyx-tube narrowly obcouic, glabrous, the lobes abruptly narrowed from broad bases, acuminate, finely glandular-serrate below the F'^32^ middle, with minute stipitate red glands; stamens 20; anthers yellow; styles 2-4:, usually 3. Fruit ripening the middle of October, on slender pedicels, in many- fruited drooping clusters, subglobose to short-oblong, full and rounded at the ends, dark crimson marked by occasional large dark dots, -j'-f' long, about ^' wide; calyx only slightly enlarged, the lobes serrate, closely appressed, often deciduous from the ripe fruit; flesh thick, pale orange color, and juicy ; nutlets usually 3, thick, full and rounded at the ends, prominently ridged on the back, with a broad high rounded deeply grooved ridge, about ^' long. A tree, 2o°-30° high, with a tall trunk sometimes a foot in diameter, covered with dark scaly bark, large spreading branches forming a broad round-topped head, and glabrous branchlets dull light reddish brown during their first season, becoming 408 TREES OF NORTH AMERICA dark brown or ashy gray, aud armed with stout straight or slightly curved dull red- brown or purplish spines usually about 1^' long. Distribution. Low moist rich soil on the bottoms of the Mississippi River near the village of Kahokia, Illinois, a few miles south of East St. Louis (John D. Kellogg, October 1902, May 1903). 42. Crataegus atrorubens, Ashe. Leaves ovate, acute, usually full and rounded or sometimes broadly cuneate or truncate at the entire base, coarsely and usually doubly serrate above, and often divided into 2 or 3 pairs of short acute lobes, about half grown when the flowers open late in April or early in May and then slightly roughened above by short scattered white hairs, and furnished below with conspicuous axillary tufts of pale toraentum, and at maturity thin, glabrous, dark dull green and smooth on the upper surface, light yellow-green on the lower surface, about 2' long and 1^' wide, or on leading shoots frequently 3' long, and 2\' wide, with thin midribs and 4 or 5 pairs of slender primary veins; their petioles slender, nearly terete, more or less densely villose at first, soon becoming glabrous, I'-l^' long. Flo"wers about |' in diameter, on slender elongated villose pedicels, in broad loose compound glabrous or villose corymbs; calyx-tube narrowly obconic, coated throughout or only at the base with hoary to- mentum, the lobes short, acute, finely glandular-serrate, villose particularly on the inner surface; stamens 20; styles 4 or 5, surrounded at the base by a narrow ring of pale tomentum. Fruit ripening and falling early in October, on slender pedicels, in drooping few-fruited clusters, subglobose to short-oblong, full and rounded at the ends, dark red; calyx somewhat enlarged, with spreading lobes usually deciduous before the fruit ripens; nutlets 4 or 5, thin, rounded and sometimes obscurely grooved on the back, about ^-^ long. A tree, sometimes 30° high, with a tall trunk 12'-18' in diameter, covered with dark red-brown scaly bark, thin erect and spreading branches forming a compact rather narrow head, and slender glabrous branchlets marked by occasional dark lenticels, dark green more or less tinged with red when they first appear, becoming dark chestnut-brown and very lustrous and bright reddish brown in their second year, and usually unarmed. Distribution. Rich bottom-lands of the Mississippi River, East St. Louis, Illinois; not common. ROSACEA 409 —I — t- Anthers purple or rose color. 43. Crataegus iugens, Beadl. Leaves obovate-oval or ovate, broadly or narrowly wedge-shaped at the entire base, crenately serrate above, and often slightly lobed toward the acute apex, about half grown when the flowers open at the end of April or early in May and then roughened above by short rigid hairs and villose below along the midribs and remote slender veins extending very obliquely to the points of the lobes, and at maturity subcoriaceous, dark green and scabrate on the upper surface, paler and nearly gla- brous on the lower surface, l^'-2' long, l^'-l^' wide, turning in the autumn yellow, orange, red, or brown; their petioles stout, narrowly wing-margined to the middle, pubescent while young, becoming glabrous, about |' long; on vigorous shoots more deeply lobed and often 3'-3|' long, and 2' wide, with stout broad-winged petioles sometimes 1^' in length. Flowers |^'— |' in diameter, on slender hairy pedicels, in many-flowered compact hairy corymbs; calyx narrowly obconic, coated, especially toward the base, with matted pale hairs, the lobes slender, elongated, acute, gland- ular, with bright red glands, glabrous on the outer, sparingly villose on the inner surface; stamens 20; anthers bright purple; styles 3-5. Fruit ripening in October, T'Vc^ss ^Cii^- on stout puberulous pedicels, in few-fruited drooping clusters, globose to subglobose, red, about f in diameter; calyx little enlarged, with reflexed appressed nearly gla- brous lobes; flesh firm; nutlets 3-5, rounded or slightly grooved and ridged on the back, 1 long. A tree, sometimes 25° high, with a trunk a foot in diameter, spreading branches forming a wide round-topped head, and unarmed branchlets covered at first with matted pale hairs, soon becoming glabrous. Distribution. Moist woods and the low banks of streams; southeastern Tennes- see and northwestern Georgia. 44. Crataegus penita, Beadl. Leaves broadly obovate, oval, or ovate, acute or acuminate at the apex, broadly or acutely concave-cuneate at the entire base, sharply often doubly serrate above, with glandular mostly straight teeth, and often slightly lobed above the middle, 410 TREES OF NORTH AMERICA deeply tinged with red and covered with pale hairs when they unfold, nearly fully grown when the flowers open about the 1st of May and then smooth above and glabrous below with the exception of axillary tufts of pale hairs, and at maturity subcoriaceous, dark green and lustrous on the upper surface, paler on the lower surface. If -2' long, I'-lf ' wide, with prominent midribs and slender primary veins, turning orange, yellow, and brown in the autumn; their petioles slender, covered while young like the upper side of the base of the midrib with pale deciduous hairs, ^'-|' long; on vigorous shoots often rounded or subcordate at the base, more or less deeply lobed and 2l'-3' long and broad, with stout broadly winged glandular petioles. Flo'wers about f in diameter, on elongated glabrous or sparingly hairy pedicels, in compact few-flowered nearly glabrous corymbs; calyx broadly obconic, glabrous, the lobes gradually narrowed from broad bases, slender, acuminate, entire, or fur- nished with occasional minute glandular teeth, slightly villose on the inner surface; stamens 20; anthers white faintly tinged with pink; styles 3-5. Fruit ripening in October, on elongated slender pedicels, in few-fruited drooping clusters, globose or depressed-globose, red, about \' in diameter, with firm flesh ; calyx enlarged, with spreading or reflexed lobes, villose on the upper side; nutlets 3-5, narrowed and acute at the ends, rounded and broadly grooved on the back, about ^' long. A tree, 18°-20° high, with a short trunk sometimes 10' in diameter, stout ascend- ing or spreading branches forming a wide head, unarmed branchlets puberulous while young, soon glabrous, and becoming light reddish brown. Distribution. Low moist woods and the banks of streams; southeastern Ten- nessee. ** Stamens usually 10; anthers bright red. 45. Crataegus micracantha, Sarg. Leaves oblong-obovate to oval, acute, acuminate, or rarely rounded at the apex, gradually or abruptly narrowed from above or below the middle to the cuneate en- tire base, coarsely crenulate-serrate and occasionally 3-lobed above, with short broad acute lateral lobes, when they unfold villose on the upper and hoary-tomentose on the lower surface, more than half grown when the flowers open about the middle of May and then membranaceous and slightly villose above, with short scattered pale hairs, and at maturity thin but firm in texture, dark yellow-green, lustrous, and smooth ROSACEiE 411 above, paler and tomentose below along the slender midribs and 3 or 4 pairs of very obscure primary veins, 2'-2^' long, I'-ll^' wide; their petioles slender, more or less wing-margined toward the apex, tomentose early in the season, becoming glabrous or pubescent, ^'-1' long; on leading shoots often broadly rhomboidal to obovate, acuminate, frequently deeply 3-lobed or divided into 2 oj 3 pairs of short lateral lobes, usually 2^'-3' long. Flowers cup-shaped, \' in diameter, on long slender pedicels thickly coated with matted white hairs, in broad lax many-flowered com- pound hairy corymbs; calyx-tube narrowly obconic, villose, the lobes linear, acumi- nate, entire, slightly villose, tipped with minute dark glands; stamens usually 10, occasionally 12, 15, or 20; anthers small, deep bright red; styles 5. Fruit ripening the middle of October, on slender pubescent pedicels, in drooping many-fruited clus- ters, subglobose to short-oblong, full and rounded at the ends, bright orange-red. lustrous, marked by occasional large pale dots, about ^' long; calyx prominent, with a short villose tube, and spreading erect hairy lobes often deciduous from the ripe fruit; flesh thin, yellow, dry and mealy; nutlets 5, thin, acute at the narrowed ends, rounded and sometimes slightly grooved on the back, about -^^' long. An unarmed tree, sometimes 25° high, with a tall trunk 8-12' in diameter, covered with light or dark brown bark separating freely into thin narrow scales, stout spread- ing branches forming a broad flat-topped handsome head, and slender nearly straight branchlets coated until after the flowering time with thick hoary tomentum, bright red-brown and puberulous during their first season, becoming light or dark dull reddish brown the following year. Distribution. Common in low woods in rich moist soil near Fulton, Arkansas, in the valley of the Red River. V. PRUINOS-51. Leaves elliptical ; fruit subglobose, green, and pruinose when fully grown, becoming dark purple-red and very lustrous ; anthers large, deep rose color. 46. C. pruinosa (A, C). Leaves ovate, acute or acuminate ; fruit oblong, dull russet green ; anthers small, light rose color. 47. C. Georgiana (C). 46. Crataegus pruinosa, K. Koch. Leaves elliptical, acute, gradually or abruptly narrowed and cuneate at the en- tire base, irregularly and often doubly serrate above, with glandular straight or 412 TREES OF NORTH AMERICA incurved teeth, aud divided in 3 or 4 pairs of short acute or acuminate lateral lobes, when they unfold bright red and glabrous with the exception of a few short caducous hairs on the upper side of the base of the midribs, nearly fully grown when the flowers open from the middle to the end of May and then membranaceous and bluish green, and at maturity subcoriaceous, dark blue-green and often glaucous above, pale below, I'-l^' loiig? |'-1' wide, with slender midribs and 3 or 4 pairs of thin primary veins running to the points of the lobes, late in the autumn turning dull orange color; their petioles slender, glandular, slightly winged at the apex, I'-l^ long, often bright red in early spring and in the autumn; on vigorous shoots broadly ovate, often rounded at the base, more coarsely dentate and more deeply lobed, fre- quently 2^' long and wide, with stouter and more broadly winged petioles. Flowers I'-l' in diameter, on long slender pedicels, in few-flowered glabrous corymbs; calyx- tube broadly obconic, glabrous, the lobes gradually narrowed from wide bases, long- pointed, finely glandular-serrate below the middle; stamens 20; anthers large, deep rose color; styles 5, surrounded at the base by a thick band of hoary toraentum. Fruit on long thin light green ultimately bright red pedicels, in few-fruited drooping clusters, 5-angled, apple green, and covered with a glaucous bloom until nearly fully ripe, at maturity late in October subglobose but rather broader than long, barely angled, ^'-f in diameter, dark purple-red, marked by many small dull dots, very lustrous; calyx prominent, with a long well-developed tube and enlarged usually erect lobes often deciduous before the fruit ripens; flesh thick, light yellow, sweet, dry and mealy; nutlets 5, light-colored, acute at the apex, narrowed and rounded at the base, deeply grooved on the back, 1' long. A tree, lo°-20° high, with a stem a few inches in diameter, spreading horizontal branches forming a broad open irregular head, and branchlets armed with numerous stout straight light chestnut-brown spines V-1^' long; often shrubby, with several intricately branched stems. Distribution. Slopes of low hills often in limestone soil; southwestern Vermont, southward to the foothill region of the southern Appalachian Mountains, and west- ward to central Illinois and Missouri. ROSACEA 413 47. Crataegus Georgiana, Sarg. Leaves ovate, acute or acuminate at the apex, full and rounded or broadly cune- ate at the base, finely and often doubly serrate, with straight or incurved gland- tipped teeth, and divided into numerous short acute lateral lobes, glabrous with the exception of a few pale caducous hairs on the upper surface and bronze-yellow when they unfold, nearly half grown when the flowers open about the 20th of April and then thin, dark yellow-green above, pale below, and at maturity thin but firm in texture, dark blue-green on the upper surface, pale on the lower surface, l^'-2' long, I'-l^' wide, with slender yellow midribs and 3 or 4 pairs of thin primary veins; their petioles slender, often short- winged at the apex, usually about f long; on leading shoots often 3' long and 2' wide, sometimes deltoid and usually much more deeply lobed. Flowers |' in diameter, on slender pedicels, in usually 5-7-flowered compact glabrous corymbs; calyx-tube broadly obconic, glabrous, the lobes gradually narrowed from broad bases, acuminate, entire or obscurely and irregularly serrate, glabrous; stamens 20; anthers small; light rose color; styles 5; surrounded at the base by a narrow ring of pale tomentum. Fruit ripening and falling early in October,, on slender pedicels, in drooping few-fruited clusters, oblong, full and rounded at the ends, often obscurely 5-angled, dull russet-green, f'-^' long; calyx-lobes only slightly enlarged, mostly deciduous before the fruit ripens, leaving a well-defined ring at the summit of the short calyx-tube; flesh thin, light green, dry and hard; nutlets 5, thin, rounded and irregularly grooved on the back, about ^ long. A tree, sometimes 2o°-30° high, with a tall trunk 10'-12' in diameter, stout wide- spreading branches forming a broad symmetrical round-topped head, and branchlets armed with straight or slightly curved thin bright chestnut-brown lustrous spines rarely more than 1^' long. Distribution. Low rich river bottoms and meadows in the neighborhood of Rome, Georgia. VI. TENUIFOLL5I. Stamens 5-10. Fruit obovate ; leaves oblong'-ovate, acuminate, dark blue-green. Stamens usually 5 ; anthers pink ; fruit brig-ht reddish purple ; leaves mostly sca- » brate ; calyx-lobes entire or sparingly glandular ; spines more than 1' long-. 48. C. apiomorpha (A). 414 TKEES OF NORTH AMERICA Stamens 10; anthers bright reddisli purple; fruit crimson or pnri)lis]i ; leaves smooth; spines h'-^' long. 41). C. paucispina (A), Fruit short-oblong-, dark criinson : loaves oval or ovato, dark groon ;iih1 Kc-ibralc above; stamens usually f> ; antliors dark rod-j)urple. ;">(). C. pentandra (A). Fruit subglobose, often broader than high, red or greenish yellow, with a rosy cheek ; leaves ovate, dark yellow-green, smooth or scabrate above; stamens 10; anthers piirple. 51. C. silvicola (C). Stamens usually 20. Leaves broadly ovate to oval, dark dull g-reen and smooth above ; fruit short-oblong to obovate, crimson, anthers dark purple. 52. C. lucorum (A). Leaves ovate, yellowish to bluish green and smooth above ; fruit subglobose to broad- obovate, dark red to reddish purple ; anthers pale rose color. 58. C. depilis (A). Leaves ovate, bright green and scabrate above ; fruit subglobose, scarlet, with a glaucous bloom ; anthers purple. 54. C. basilica (A). Leaves rhomboidal to broadly ovate or rarely obovate, light yellow green ; fruit short- oblong, bright cherry-red ; anthers rose color. 55. C. lacera (C). *Stamens 5-10. \ 48. Crataegus apiomorpha, Sarg. Leaves oblong-ovate, acuminate, rounded or rarely ciineate at the entire often unsymmetrical base, finely doubly serrate above, with slender glandular teeth, and slightly divided above the middle into 4 or 5 pairs of triangular acute lobes, about half grown when the flowers open early in May and then membranaceous, light yel- low-green and tinged with red or bronze color, and covered above with short white hairs and pale and glabrous below, and at maturity thick and firm in texture, dark blue-green and smooth and lustrous or .sometimes dull and scabrate on the upper surface, pale blue-green on the lower surface, l^'-2^' or on leading shoots often 3' long, ll'-l^' wide, with stout midribs and primary veins arching obliquely to the points of the lobes; their petioles slender, slightly winged at the apex, of ten sparingly glandular, f'-l' long. Flowers ^'-f ' in diameter, on short villose or glabrous pedi- cels, in compact many-flowered usually hairy compound corymbs; bracts and bract- lets linear to oblong-obovate, finely glandular-serrate, with stipitate dark red or purple glands, turning red before falling, mostly persistent until after the flowers ROSACEA 415 open; calyx-tube narrowly obconic, glabrous, the lobes abruptly narrowed at the base, slender, acuminate, entire or sparingly glandular on the margins; stamens 5- 10, usually 5; anthers pink; styles 3-5, surrounded at the base by tufts of pale hairs. Fruit ripening the 1st of September and soon falling, on slender pedicels, in few- fruited drooping clusters, obovate or rarely short-oblong, bright reddish purple, marked by small scattered pale dots, f'-|' long, ^'-^' wide; calyx much enlarged, with spreading lobes, their tips mostly deciduous from the ripe fruit; flesh thin, yellow, juicy, pleasantly acid; nutlets 3-5, thin, rounded and ridged on the back, with a low ridge, about \' long. A tree, sometimes 25° high, with a trunk 6' in diameter and 3°-6° long, covered with dark gray bark separating into thin plates, in falling disclosing the yellow inner bark, numerous ascending branches forming an oblong or pyramidal crown, and slen- der branchlets dark dull red-brown during their first season, becoming dark gray- brown the following year, and unarmed or armed, with slender nearly straight dull red-brown ultimately ashy gray spines I'-l^' long; or often shrubby, with numerous stems spreading into small clumps. Distribution, Dry open places, borders of woods, and the margins of the high banks of streams; common and generally distributed in the neighborhood of Chicago, Illinois. 49. Crataegus paucispina, Sarg. Leaves oblong-obovate, acuminate, rounded, concave-cuneate to truncate or sub- cordate at the entire base, sharply doubly serrate above, with straight glandular T'V SM teeth, and deeply divided into 4 or 5 pairs of acute lateral lobes spreading or point- ing toward the apex of the leaf, about half grown when the flowers open early in May and then light yellow-green and slightly roughened above by short white hairs and paler and glabrous below, and at maturity membranaceous, dark blue-green and scabrate on the upper surface, pale blue-green on the lower surface, 2i'-3' long, 1^- 2^' wide, with slender yellow midribs and thin primary veins extending obliquely to the points of the lobes; their petioles slender, usually without glands, tinged with purple in the autumn, f '-1^' long. Flcwers |'-|' in diameter, on slender hairy pedi- cels, in broad 12-20-flowered slightly villose compound corymbs, with linear to oHong-obovate glandular red bracts and bractlets mostly persistent until after the 416 TREES OF NORTH AMERICA flowers open; calyx-tube narrowly obconic, glabrous, the lobes narrow, acuminate, glandular-serrate, with small dark red stipitate glands, glabrous on the outer, pubes- cent on the inner surface; stamens 10; anthers bright reddish purple; styles 4 or 5, surrounded at the base by tufts of pale hairs. Fruit ripening during the first half of September and soon falling, on slender glabrous pedicels, in drooping clusters, obovate to subglobose, crimson or purplish, marked by numerous small pale dots, slightly pruinose, ^'— |' long, about ^' wide; calyx small, with reflexed and appressed or erect and incurved serrate lobes dark red on the upper side below the middle, often deciduous from the ripe fruit; flesh thin, yellow, juicy, acid, and edible; nut- lets 4 or 5, thin, narrowed and acute at the ends, rounded and slightly grooved or obscurely ridged on the back, about ^' long. A tree, sometimes 25° high, with a trunk 4'-6' in diameter and often 6° long, covered with dark gray or nearly black bark separating into thin plate-like scales, numerous branches forming a round-topped head, and slender glabrous branchlets dark yellow-green when they first appear, becoming dark reddish brown at the end of their first season, olive-green in their second year, and ultimately dark gray- brown, and armed with small straight light red-brown shining spines ^'— |' long. Distribution. Woods and river banks in dry clay soil; May wood, near Chicago, Illinois. 60. Crataegus pentandra, Sarg. Leaves oval or ovate, acuminate, broadly cuneate or rarely rounded at the entire base, divided above the middle into numerous short acute or acuminate lobes, and coarsely and often doubly serrate, with straight or incurved teeth tipped with small dark glands, nearly fully grown and very thin when the flowers open at the end of May, and at maturity membranaceous, dark green and roughened above by short rigid pale hairs, pale and glabrous below, 2'-2^' long, l^'-2' wide, with slender yellow midribs and thin primary veins extending to the points of the lobes; their petioles slender, often winged toward the apex, glandular, with minute dark glands, usually about 1' long; on vigorous shoots more deeply lobed and often 4' long and 3' wide, their stipules foliaceous, lunate, very coarsely glandular-serrate, often ^' long. Flowers |'-|' in diameter, on elongated slender pedicels, in compact com- pound few-flowered glabrous corymbs; calyx-tube narrowly obconic, glabrous, dark ROSACEA 417 red, the lobes linear-lanceolate, entire or finely glandular-serrate; stamens usually 5, occasionally 6-10; anthers large, dark red-purple; styles 3, surrounded at the base by a thin ring of hoary tomentum. Fruit ripening about the middle of September and soon falling, on stout pedicels, in drooping narrow clusters, short-oblong, full and rounded at the ends, dark crimson, lustrous, marked by minute pale dots, usually about -|' long and ^' thick; calyx enlarged and persistent, the lobes elongated, strongly incurved, often deciduous before the fruit ripens ; flesh thick, dry and nealy; nutlets 3, thick, narrowed and acute at the ends, prominently ridged on the back, with a high broad ridge, y long. A tree, rarely more than 15° high, with a straight trunk 5'-6' in diameter, cov- ered with thin bark separating into papery lustrous pale scales, stout branches forming a broad open head irregular in outline, and slender glabrous branchlets bright chestnut-brown during their first season, becoming ashy gray the following year, and armed with many thick straight or curved bright chestnut-brown or red- brown spines I'-l^' long. Distribution. Low hills and limestone ridges; southern and southwestern Ver- mont. 51. Crataegus silvicola, Beadl. Leaves ovate, acute or acuminate at the apex, full and rounded at the entire base, sharply and often doubly serrate above, with gland-tipped teeth, and slightly and irregularly divided into short acute lateral lobes, when they unfold dark red and coated with short soft pale hairs most abundant on the upper surface, about half grown when the flowers open at the end of April and then nearly glabrous, and at maturity thin, dark yellow-green and smooth or scabrous above, pale and glabrous below, or occasionally villose along the under side of the slender midribs and 3 or 4 pairs of thin primary veins extending to the points of the lobes, about 2' long and ll'-l|' wide; their petioles slender, glandular, about 1' long; on vigorous shoots often del- toid, and truncate or cordate at the base, more coarsely serrate and more deeply lobed, and frequently 2^' long and broad. Flowers about f in diameter, on slender pedicels, in compact few-flowered thin-branched compound glabrous corymbs, with linear glandular bright red caducous bracts and bractlets ; caylx-tube narrowly ob- conic and glabrous, the lobes gradually narrowed, acuminate, glabrous, entire or 418 TREES OF NORTH AMERICA glandular-serrate; stamens 10; anthers large, pnrple; styles 3-5, surrounded at the base by a narrow ring of pale hairs. Fruit ripening at the end of September and soon falling, on short pedicels, in erect few-fruited clusters, subglobose and often a little broader than long, red or greenish yellow, with a rosy cheek, about ^' in diam- eter; calyx little enlarged, with spreading lobes usually deciduous before the fruit ripens; flesh thin, yellow, dry and mealy; nutlets 3-5, thick, prominently ridged ^ and grooved on the back, with a high broad ridge, about \' long. " A tree, sometimes 30° high, with a tall straight trunk G'-8' in diameter, covered with close or slightly fissured bark broken into small gray or red-brown scales, and often armed with long stout branched gray spines, ascending or spreading branches 1 forming a narrow irregular or round-topped head, and slender branchlets dark green tinged with red and covered with long pale scattered white hairs when they first appear, soon becoming glabrous, bright red-brown during their first year, and ulti- mately ashy gray, with few or many thin straight or somewhat curved bright chest- nut-brown spines 1^' to nearly 2' long; or in the dry soil of upland forests usually a shrub, with numerous stems. Distribution. Low moist flat woods; northern Alabama and northwestern and central Georgia, and occasionally on the drier uplands of the surrounding country; common. **Stamens usually 20. 52. Crataegus lucorum, Sarg. Leaves broad-ovate to obovate or rarely oval, broadly cuneate or full and rounded at the entire base, coarsely serrate above, with straight teeth tipped with large per- sistent bright red finally dark glands, and deeply divided above the middle into 3 or 4 pairs of wide acute or acuminate lobes, rather more than a third grown when the flowers open early in May and then light yellow-bronze color, covered on the upper surface with short soft pale hairs and glabrous on the lower surface, and at maturity membranaceous, smooth, dark dull green and glabrous above, pale yellow-green below, about 2' long and 1^' wide, with slender yellow midribs and 3 or 4 pairs of thin primary veins extending obliquely to the points of the lobes; their petioles slen- der, glandular, often somewhat winged toward the apex, I'-l^' long; on vigorous ROSACEA 419 shoots usually ovate and rounded at the broad base, more deeply lobed and some- times 3' long and broad. Flowers |' in diameter, on thin pedicels, in narrow com- pact few«»flowered small villose corymbs; calyx broadly obconic, glabrous, the lobes narrow, actiminate, coarsely glandular-serrate, villose on the upper surface ; stamens 20; anthers small, dark purple; styles 4 or 5. Fruit ripening about the middle of September and soon falling, on short stout pedicels, in erect few-fruited slightly vil- lose clusters, pear-shaped until nearly fully grown and then short-oblong or somewhat obovate, full and rounded at the ends, crimson, lustrous, marked by small pale dots, ^'-f long; calyx enlarged, the lobes elongated, coarsely glandular-serrate, villose above, closely appressed, often deciduous before the fruit ripens; flesh thick, yellow, dry and mealy; nutlets 4 or 5, thin, rounded, and sometimes obscurely ridged on the back, about \' long. A tree, 20°-2o° high, with a tall straight trunk 6'-8' in diameter, covered with close dark red-brown bark, slender ascending branches forming a narrow open head, and thin branchlets dark green and somewhat villose when they first appear, becom- ing dull orange-brown in their first summer and ultimately dark gray-brown, and armed with straight or slightly curved bright red-brown lustrous spines I'-l^ long. Distribution. Rich moist soil along the margins of Oak groves on the banks of sloughs; Barrington, Illinois. 53. Crataegus depilis, Sarg., n. sp. Leaves ovate, acute or acuminate, rounded or broadly cuneate and often unsym- metrical at the entire base, sharply doubly serrate above, with straight glandular teeth, and often divided into 4 or 5 pairs of short acute lobes, when they unfold deeply tinged with red and covered above with fine short caducous hairs, nearly half grown when the flowers open during the second week of May, and at maturity membranaceous, glabrous, smooth, yellowish to bluish green on the upper surface, pale on the lower surface, l^'-2' long, I'-l^ wide, and on vigorous shoots often 2i' long and 1^' wide, with slender midribs and 5 or 6 pairs of thin primary veins, turn- ing yellowish and brown or russet color in the autumn; their petioles slender, gla- brous, sparingly glandular, with minute glands, ^'-V long; stipules linear, acuminate, glandular-serrate, reddish, caducous. Flowers |' in diameter, on slender pedicels. 420 TREES OF NORTH AMERICA in broad compound glabrous 8-12-flovvered corymbs, with linear or oblong glandular bracts and bractlets; calyx narrowly obconic, glabrous, the lobes lanceolate, gland- ular-serrate, deeply tinged with purple; stamens 20; anthers pale rose color; styles 4 or 5. Fruit ripening early in September and soon falling, on slender pedicels, in drooping few-fruited clusters, subglobose to broad-obovate, dark red to reddish purple, lustrous, ^'— f' long, -I'-f wide; calyx only slightly enlarged, the lobes re- flexed, glandular-serrate, and red on the upper side toward the base ; flesh thick, yellow, sweet, juicy, and slightly acid; nutlets 4 or 5, full and rounded at the apex, narrowed and acute at the base, and prominently but irregularly ridged on the back, with a high sometimes grooved ridge, ^'-yV long. A tree, 20°-25° high, with a trunk 4'-8' in diameter and 6°-9° long, covered with dark gray or gray-brown flaked bark, spreading branches forming an oblong or rounded open head, and slender glabrous branchlets bright red-brown and very lus- trous during their first summer, becoming light gray-brown the following year, and armed with stout or slender nearly straight spines f -1^' long. Distribution. Rich clay or gravelly soil in pastures and on the borders of woods; northeastern Illinois, at Lake Forest, Glendon, and New Lenox {E. J. Hill). 54. Crataegus basilica, Beadl. Leaves ovate, acute or acuminate, broadly cuneate or rounded at the entire or crenate base, sharply and often doubly serrate above, with straight slender glandular teeth, and divided into numerous short acute lateral lobes, more than half grown when the flowers open early in May and then roughened above by short pale hairs F'i^Sd9 and glabrous below, and at maturity thin but firm in texture, bright green and sca- brate above, paler below, 2^'-3' long, 1^-2' wide, with slender yellow midribs and thin veins arching to the points of the lobes, turning yellow and brown in the autumn; their petioles slender, slightly winged at the apex, I'-l^' long. Flowers ^'-|' in diameter, on elongated slender pedicels, in 6-15-flowered glabrous com- pact corymbs; calyx-tube broadly obconic, glabrous, the lobes slender, acuminate, glabrous, entire or occasionally serrate; stamens 15-20; anthers purple; styles 3-5. Fruit ripening and falling early in September, on slender pedicels, in few-fruited ROSACEA 421 drooping clusters, subglobose, scarlet, covered with a glaucous bloom, and ^-f in diameter; flesh soft, sweet, and edible; nutlets 3-5, narrowed and acute at the ends, prominently ridged on the back, with a high broadly grooved ridge, j-jq' long. A tree, sometimes 20° high, with a trunk 7'-8' in diameter, covered with dark gray or brown scaly bark, ascending or slightly spreading branches forming a narrow irregular head, and stout branchlets armed with numerous slender bright chestnut- brown lustrous ultimately gray spines 2'-2^' long. Distribution. Open woods and the borders of fields and roads, western North Carolina, usually at elevations of 2000°-3000° above the sea. 55. Crataegus lacera, Sarg. Leaves rhomboidal to broadly ovate or rarely obovate, acute at the apex, broadly cuneate and entire at the base, divided above the middle into numerous acute lobes, A/xrj& and coarsely often doubly serrate above, with straight glandular teeth, when they unfold coated below with thick hoary tomentum and villose above, nearly fully grown when the flowers open about the 20th of April and then glabrous on the lower sur- face and covered on the upper surface with short scattered pale hairs, and at ma- turity glabrous, light yellow-green, paler below than above, thin but firm in texture, about ly long and ly wide, with thin yellow midribs and few remote primary veins; their petioles slender, villose, becoming glabrous or puberulous, slightly winged at the apex, often red toward the base, \'-^' long; on vigorous shoots broadly ovate, often deeply 3-lobed, very coarsely serrate, 3'— 4' long and broad, with lunate long-pointed coarsely glandular-serrate stipules sometimes ^' in length. Flo"wers ^' in diameter, on long slender pedicels, in sparingly villose few-flowered compound corymbs; calyx-tube narrowly obconic, glabrous, the lobes linear-lanceolate, elon- gated, coarsely glandular-serrate, glabrous on the outer surface, villose on the inner surface; stamens 20; anthers small, rose color; styles 4 or 5. Fruit ripening toward the end of October, on short stout glabrous pedicels, in erect few-fruited clusters, short-oblong, full and rounded at the ends, bright cherry-red, lustrous, marked by occasional large dark dots, about ^' long; calyx only slightly enlarged, with small nearly triangular villose spreading lobes mostly deciduous before the fruit ripens; flesh thick, orange color; nutlets 3-5, thin, broad, narrowed at the ends, only slightly ridged on the rounded back, light brown, ^q' long. 422 TREES OF NORTH AMERICA A slender tree, 25°-30° high, with a tall trunk 4'-5' in diameter, covered with pale scaly bark, small short branches forming a narrow head, and slender branchlets dark olive-green and villose when they first appear, becoming light red-brown and glabrous during their first summer, and ultimately dull light gray, and armed with thin straight bright chestnut-brown lustrous spines f'-lf long. Distribution. Low rich forest glades near Fulton, on the Red River, Arkansas. . VII. MOLLES. Stamens 20. Anthers pale yellow {color unknown in 59). Leaves mostly broad and rounded at the base. Leaves broadly ovate, thick and firm ; fruit short-oblong to subglobose, scarlet, pu- bescent, ripening in August and September. 56. C. mollis (A, C). Leaves oblong-ovate, membranaceous ; fruit obovate-oblong, dull dark red, slightly villose or pubescent, ripening in October. 57. C. sera (A). Leaves oblong-ovate to oval, thick and leathery ; fruit short-oblong or rarely obovate, bright crimson, very lustrous, slightly tomentose, ripening at the end of October. 58. C, Arkansana (C). Leaves broadly ovate, thin ; fruit depressed-globose, red, ripening in August and September. 59. C. gravida (C). Leaves mostly narrowed at the base. Leaves ovate to oval, membranaceous ; fruit subglobose, often broader than high, crimson, lustrous, pubescent, ripening late in September. 60, C. Treleasei (C). Leaves ovate, thin and firm ; fruit short-oblong to subglobose, crimson, lustrous, slightly villose, ripening early in October. 61. C. Canadensis (A). Leaves oblong-obovate to oval, thin and firm, dark green and lustrous above ; fruit short-oblong to subglobose, scarlet, ripening after the middle of October. 62. C. Berlandieri (C). Anthers rose color. Leaves mostly broad at the base. Leaves ovate, firm and rigid, dark yellow-green, bright and lustrous ; fruit short- oblong to obovate, bright cherry-red, lustrous, ripening at the end of September. 63. C. corusca (A). Leaves ovate to suborbicular, thin and firm, dark yellow-green and smooth above ; fruit subglobose to short-ovate, bright yellow, ripening at the end of September. 64. C. Kelloggii (A). Leaves mostly narrowed at the base. Leaves broadly ovate, thick and firm, dark green and lustrous above ; fruit short- oblong to slightly obovate, bright scarlet, puberulous at the apex, ripening at the end of October. , 65. C. Texana (C). Leaves ovate to obovate, membranaceous, dark green and scabrate above, canescent below ; fruit subglobose, dark red and glabrous, ripening after the middle of October. ^Q. C. quercina (C). Leaves oval to broadly ovate, thin and firm, lustrous, scabrate above ; fruit obovate, bright cherry-red, ripening in October. , 67. C. pyriformis (C). Leaves ovate to suborbicular, subcoriaceous, dark blue-green, lustrous and scabrate above ; fruit subglobose to short-oblong, dark crimson, slightly hairy at the ends, ripening late in October. 68. C. lanuginosa (C). Leaves oblong-ovate, membranaceous, dark yellow-green and scabrate above ; fruit short-oblong, crimson or reddish yellow, lustrous, ripening the middle of October. 69. C. induta (C). Stamens 10. Anthers yellow-; leaves mostly broad and rounded at the base. ROSACEA 423 Leaves usually ovate, rarely oval, membranaceous, dark green and smooth above ; fruit subglobose, bright crimson, villose, ripening the middle of August and soon falling. 70. C. Arnoldiana (A). Leaves ovate, subcoriaceous, glabrous and conspicuously blue-green above ; fruit obovate or oblong, bright scarlet, villose or pubescent, ripening early in Septem- ber, long persistent on the branches. 71. C. Champlainensis (A). Leaves ovate, membranaceous, dark yellow-green and scabrate above ; fruit obovate, bright orange-red, lustrous, puberulous at the base, ripening and falling early in September. 72. C. sub mollis (A). Anthers rose color. Leaves ovate, mostly broadly cuneate at the base, membranaceous, yellow-green, smooth and glabrous above ; fruit obovate to short-oblong, crimson, lustrous, slightly villose. 73. C. anomala (A). Leaves oval, rounded or broadly cuneate at the base, membranaceous, light green and scabrous above ; fruit short-oblong, light crimson, lustrous, villose at the ends, ripening and falling late in September. 74. C. EUwangeriana (A). *Stamens 20. -i-Anthers pale yellow. 56. Crataegus mollis, Scheele. Red Ha-w. Leaves broadly ovate, acute, usually cordate or rounded at the broad base, coarsely and generally doubly serrate, with straight glandular teeth, and more or less deeply divided into 4 or 5 pairs of acute lateral lobes, when they unfold covered above with short pale hairs and hoary-tomentose below, about half grown when the ^i^S.c^^f flowers open early in May and then membranaceous, light yellow-green and hairy above and pubescent or tomentose below, and at maturity thick and firm in texture, dark yellow-green and slightly rugose on the upper surface and paler and pubescent or puberulous on the lower surface along the stout midribs and 4 or 5 pairs of pri- mary veins extending to the points of the lobes, 3'-4' long and broad; their petioles stout, terete, at first tomentose, ultimately pubescent or nearly glabrous, often slightly glandular, with small dark caducous glands, I'-iy long; on vigorous shoots more deeply lobed, with a deeper basal sinus, and frequently 5'-6' long and broad, with foliaceous coarsely serrate lunate stipules sometimes 1' in length. Flowers 1' in diameter, on stout pedicels, in broad compound many-flowered tomentose corymbs, 424 TREES OF NORTH AMERICA with conspicuous bracts and bractlets; calyx-tube narrowly obconic, hoary-tomentose, the lobes narrow, acuminate, coarsely glandular-serrate, with bright red glands, vil- lose on the outer, tomentose on the inner surface; stamens 20; anthers large, light yellow; styles 4 or 5, surrounded at the base by a broad ring of hoary tomentum. Fruit ripening late in August and early in September, on stout pedicels, in drooping few-fruited villose clusters, short-oblong to subglobose, full and rounded at the ends, more or less pubescent, scarlet marked by occasional large dark dots, ^'-l' in diam- eter; calyx prominent, hairy, with large erect and incurved lobes usually deciduous before the fruit ripens; flesh thick, yellow, subacid, dry and mealy; nutlets 4 or 5, thin, rounded and obscurely ridged on the back, light brown, ^' long. A tree, sometimes 40° high, with a tall trunk often 18' in diameter, heavy wide- spreading smooth ashy gray branches forming a broad round-topped and often sym- metrical head, and stout branchlets covered at first with a thick coat of long white matted hairs, villose during their first season, becoming glabrous in their second year, and armed with occasional straight thick bright chestnut-brown shining spines l'-2' long. Distribution, Low rich soil usually on the bottom-lands of streams; northern Ohio to eastern Dakota, eastern Nebraska, and eastern Kansas. 57, Crataegus sera, Sarg. Leaves oblong-ovate, acute or acuminate, rounded, truncate, or slightly cordate at the broad base, irregularly divided into 4 or 5 pairs of short acute lateral lobes, and sharply and sometimes doubly serrate nearly to the base, with straight glandular teeth, unfolding about the 1st of May with the opening of the flowers and then covered above with short soft white hairs and tomentose below, and at maturity membranaceous, dark yellow-green and glabrous on the upper surface, pubescent on the lower sur- face, 2'-4' long, 2i'-3' wide, with slender midribs appressed above and thin remote primary veins extending to the points of the lobes; their petioles slender, tomentose, ultimately pubescent, I'-l^' long; on vigorous shoots more deeply lobed and often 4'-5' long and 3'-4' wide. Flowers |' in diameter, on stout pedicels, in compact compound many-flowered tomentose corymbs; calyx-tube broadly obconic, coated with broad matted pale hairs, the lobes broad, acute or acuminate, glandular-ser- rate, with large dark glands, tomentose on the outer surface and villose on the inner ROSACEA 425 surface; stamens 20; anthers pale yellow; styles 4, or usually 5. Fruit ripening about the 1st of October, on stout puberulous pedicels, in drooping few-fruited clusters, obovate or oblong, dull dark red, marked by small pale dots, usually slightly villose or pubescent at the ends, |' long, ^' wide ; calyx enlarged, coarsely glandular-serrate, with erect and incurved lobes often deciduous before the ripening of the fruit; flesh thick, dry and mealy ; nutlets usually 5, or 4, thin, light brown, irregularly grooved on the back, with a broad shallow groove, \' long. A tree, 30°-40° high, with a tall straight trunk 12-18' in diameter, thick branches forming a broad round-topped symmetrical head, and branchlets hoary-tomentose at first, becoming light red-brown and puberulous and ultimately pale orange-brown, and armed with occasional straight or slightly curved chestnut-brown bright lustrous spines 1^-1^' in length. Distribution. Low moist ground in the neighborhood of streams; Belle Isle in the Detroit liiver, Michigan, and near Chicago and Joliet, Illinois. 58. Crataegus Arkansana, Sarg. Leaves oblong-ovate or oval, acute, rounded, broadly cuneate or truncate at the base, usually divided above the middle into 3 or 4 pairs of short broad acute lobes, and serrate sometimes to the base, with short straight glandular teeth, when the flowers open about the middle of May nearly one third grown and coated with soft white hairs most abundant on the under surface of the midribs and veins, and at maturity thick and leathery, dull dark green and glabrous on the upper surface, pale yellow-green on the lower surface, 2'-3' long, l|'-2' wide, with stout light yellow midribs and primary veins slightly villose below, conspicuous secondary veins and reticulate veinlets, late in October and November turning bright clear yellow; their petioles stout, deeply grooved, more or less winged toward the apex, glandular, with minute usually deciduous dark glands, at first tomentose, ultimately glabrous or puberulous, turning dark red after midsummer, I'-l^' long; on vigorous shoots broadly ovate, rounded or truncate at the base, often 4' long and 3^ wide, with folia- ceous lunate coarsely glandular-dentate stipules almost 1' long. Flowers nearly 1' in diameter, on short stout pedicels, in broad rather compact many-flowered villose compound corymbs; calyx-tube narrowly obconic, coated with long matted pale hairs, 426 TREES OF NORTH AMERICA the lobes short, acute, very coarsely glandular-serrate, glabrous or slightly villose; stamens 20; anthers large, pale yellow; styles 5. Fruit ripening at the end of Octo- ber and falling gradually at the end of several weeks, on stout villose pedicels, in few-fruited drooping clusters, oblong or rarely obovate, full and rounded and slightly tomentose at the ends, bright crimson, very lustrous, marked by few large dark dots, I'-l' long, about f thick; calyx little enlarged, with small linear-lanceolate coarsely glandular-serrate erect and persistent lobes; flesh thick, yellow, subacid; nutlets 5, small in comparison to the size of the fruit, thin, rounded or slightly and irregu- larly ridged on the back, ^' long. A tree, 20° high, with a tall straight stem, thick'slightly ascending wide-spreading branches forming a broad open irregular head, and stout branchlets dark green and covered when they appear with long pale hairs, becoming orange-brown, glabrous, and very lustrous in their first winter, and unarmed, or armed with occasional straight light chestnut-brown shining spines gradually narrowed from broad bases, ^4' in length. Distribution. Bottom-lands of the White River near Newport, Arkansas; hardy as far north as eastern Massachusetts, and unsurpassed late in the autumn in the beauty of its large brilliant abundant fruits long persistent on the branches. 59. Crataegus gravida, Beadl. Leaves broadly ovate, acute, rounded or truncate at the base, and coarsely and often doubly serrate, with incurved glandular teeth, and slightly incisely lobed, when they unfold roughened above by short pale hairs and hoary-tomentose below, nearly half grown when the flowers open about the 1st of May, and at maturity thin, firm, dark green, lustrous and scabrate above, paler and pubescent or pu- berulous below, particularly on the slender midribs and veins, l|'-2^' long, about ly wide, turning in the autumn yellow, orange, and brown; their petioles slender, tomentose, about ^'-V long. Flowers about f ' in diameter, on short hoary-tomen- tose pedicels, in narrow crowded many-flowered compound hoary-tomentose corymbs; calyx-tube broadly obconic, covered with matted pale hairs, the lobes gradually nar- rowed from broad bases, acuminate, glandular-serrate, villose; stamens 20; styles 5. Fruit ripening in August and September, on elongated tomentose pedicels, in few- ROSACEA 427 fruited drooping clusters, depressed-globose, red; flesh thin, yellow, dry and mealy; calyx enlarged, the lobes conspicuously serrate, puberulous on the upper surface, reflexed and closely appressed, sometimes deciduous from the ripe fruit; nutlets 5, thin, narrowed and rounded at the base, acute at the apex, rounded and obscurely grooved on the back, about ■^-^' long. A tree, sometimes 20° high, with a trunk 8'-10' in diameter, heavy wide-spreading branches forming a broad round-topped head, and stout branchlets covered at first with a thick coat of matted pale hairs, orange-red and puberulous at the end of their first season, glabrous and reddish brown the following year, and armed with slender nearly straight spines about 1^' long. Distribution. Limestone hills in the neighborhood of Nashville, Tennessee. 60. Crataegus Treleasei, Sarg. Leaves ovate to oval, concave-cuneate or rounded at the narrow base, sharply doubly serrate above, with straight glandular teeth, and slightly divided into 3 or 4 pairs of narrow acuminate lateral lobes, unfolding with the opening of the flowers at the end of April or early in May and then light yellow-green tinged with bronze color, lustrous and covered above with short shining caducous white hairs and hoary- tomentose below, and at maturity membranaceous, light yellow-green and scabrate on the upper surface, paler and pubescent on the lower surface, particularly along the slender midribs and 4 or 5 pairs of thin primary veins extending obliquely to the points of the lobes, l|'-2^' long, 1^-2' wide; their petioles slender, more or less wing- margined at the apex, villose early in the season, pubescent in the autumn. Flovrers 1' in diameter, on short stout pedicels covered with matted pale hairs, in 3-10-flow- ered compact compound or rarely simple villose corymbs; calyx-tube broadly ob- conic, covered with matted pale hairs, the lobes glabrous, narrowed from the base, with wide rounded sinuses between them, slender, acuminate, tipped with small red glands, and glandular-serrate, with stipitate red glands; stamens 20; anthers pale yellow; styles 4 or 5, usually 5. Fruit ripening at the end of September, on stout erect villose pedicels, in few-fruited clusters, subglobose or often broader than high, crimson, lustrous, marked by numerous large pale dots, pubescent at the ends, and ^'-|' in diameter; calyx prominent, with a short villose tube, and reflexed appressed 428 TREES OF NORTH AMERICA villose lobes often deciduous from the ripe fruit; flesh thick, light yellow, dry and mealy; nutlets 4 or 5, thin, full and rounded at the apex, narrowed and acute at the base, grooved with a broad shallow groove and sometimes irregularly ridged on the back, about ^\' long. A tree, 20°-25° high, with a tall trunk sometimes 6' in diameter, slender branches forming a narrow open head, and thin nearly straight branchlets thickly covered at first with long lustrous white hairs, dull light reddish brown and puberulous at the end of their first season, becoming dark gray-brown, and armed with stout straight or slightly curved dark purple shining spines usually about 1^' long, or unarmed. Distribution. Banks of small streams in moist soil from Doe Run to Bismarck, St. Francois County, Missouri. 61. Crataegus Canadensis, Sarg. Leaves ovate, short-pointed, slightly lobed usually only above the middle, with short broad acute lobes, and coarsely and frequently doubly serrate to the broadly cuneate or on leading shoots truncate base, with spreading glandular teeth, coated above in early spring with soft white hairs, and below with dense hoary tomentum, about one third grown when the flowers open at the end of May, and at maturity thin and firm in texture, blue-green, glabrous or scabrate on the upper surface, pale and pubescent on the lower surface along the midribs and primary veins, 2'-2i' long, 1^' to nearly 3' wide ; their petioles slender, glandular, often more or less winged above, at first tomentose, ultimately nearly glabrous, |'-1'' long. Flowers about |' in diam- eter, in broad loose tomentose corymbs ; calyx-tube broadly obconic, villose, with T'^^ <5^6 long matted hairs, the lobes lanceolate, villose, and glandular, with large red stipitate glands ; stamens 20 ; anthers small, nearly white ; styles 5, surrounded at the base by a thin ring of pale tomentum. Fruit ripening early in October and falling grad- ually until after midwinter, on stout pedicels, in erect slightly villose few-fruited clus- ters, short-oblong to subglobose, crimson, lustrous, marked by large scattered pale dots, slightly hairy toward the ends, ^'-f ' long, ^'-^' wide ; calyx prominent, the lobes gradually narrowed from broad bases, elongated, glandular, villose, spreading or reflexed, often deciduous before the fruit ripens; flesh thin, pale yellow, dry and mealy; nutlets 5, thin, rounded and irregularly ridged on the back, \' long. ROSACEA 429 A tree, 18°-30° high, with a trunk 6'-8' in diameter, stout spreading branches forming a broad round-topped symmetrical head, and branchlets dark green and covered with matted pale hairs when they first appear, soon becoming light orange- brown and very lustrous, and armed with numerous stout straight or slightly curved dark chestnut-brown shining spines 2'-2i' long. Distribution. Limestone ridges near the St. Lawrence River at Chateaugay, Caughnawaga, and La Tortue in the Province of Quebec. 62. Crataegus Berlandieri, Sarg. Leaves oblong-obovate or oval, acute or acuminate, gradually narrowed, cuneate and entire below the middle, unequally divided above into numerous acute or acuminate lobes, and coarsely and often doubly serrate above, with broad straight or incurved glandular teeth, when the flowers open from the middle to the end of March coated above with short pale caducous hairs and below with thick hoary tomentum, and at maturity thin and firm in texture, glabrous, dark green, very lustrous on the upper surface, pale and pubescent on the lower surface, and usually about 3' long and 2' wide, with slender midribs, remote primary veins extending to the points of the lobes, conspicuous secondary veins and reticulate veinlets; their petioles more or less winged toward the apex, tomentose at first, becoming pubes- cent, ^'-f long; on vigorous shoots often 5' long and 3' wide, with rounded acute lobes, and foliaceous lunate coarsely glandular-dentate stipules frequently ^' in length. Flowers ^' in diameter, on stout elongated hoary-tomentose pedicels, in broad loose many-flowered compound tomentose corymbs, with oblong-obovate to lanceolate finely glandular-serrate villose conspicuous bracts and bractlets; calyx- tube broadly obconic, covered with thick pale tomentum, the lobes broad, acute, very coarsely glandular-serrate, tomentose on the outer surface and villose on the inner surface; stamens 20, anthers yellow; styles 5, surrounded at the base by tufts of white hairs. Fruit ripening after the middle of October, on slender elongated pedi- cels, in loose drooping clusters, short-oblong to subglobose, scarlet, about ^' long; calyx much enlarged, with coarsely serrate villose lobes erect and persistent; flesh thin, yellow, dry and mealy; nutlets 5, rounded and occasionally obscurely grooved on the back, about ^' long. 430 TREES OF NORTH AMERICA A tree, 15°-20° high, with a tall straight stem 8'-10' in diameter, covered with thin dark brown furrowed bark, spreading branches forming a broad open head, and branchlets hoary-tomentose at first, soon puberulous, dull reddish brown or yellow- brown by midsummer, becoming ashy gray late in the autumn, and armed with few straight gray spines about 1' in length. Distribution. Low rich woods on the bottom-lands of the Brazos River at Co- lumbia and Brazoria, Texas. — « — i- Anthers rose color. 63. Crataegus corusca, Sarg. Leaves ovate, acute, truncate, rounded or slightly cordate at the broad base, reg- ularly divided into 4 or 5 pairs of short acute lateral lobes, and doubly serrate, with straight glandular teeth, when they unfold covered above with short soft pale hairs and glabrous below, about one third grown when the flowers open the middle of May, and at maturity thin but firm and rigid in texture, glabrous, dark yellow-green and very bright and shining above, pale yellow-green below, 2'-2^' long and wide, with h^ m-s A^- slender pale midribs and primary veins; their petioles slender, nearly terete, villose at first, soon becoming glabrous and dark red below the middle, l^'-2^' long; o" vig- orous shoots frequently divided into narrow acute lateral lobes, and often 3^'-4' long and wide, with lunate coarsely dentate stipules ^'-f' broad. Flowers |' in di- ameter, on stout villose pedicels, in compact narrow compound many-flowered corymbs covered with matted pale hairs; calyx-tube narrowly obconic, glabrous or villose below, the lobes narrowed from broad bases, acute, coarsely glandular-serrate, villose on the inner surface; stamens 20; anthers small, pale pink; styles 4 or 5. Fruit be- ginning to ripen and fall about the middle of September and continuing to fall until the end of October, on stout pedicels, in glabrous few-fruited clusters, oblong or obovate, bright cherry-red, lustrous, marked by dark scattered pale dots, f -f long, 2 ~l' wide; calyx little enlarged, the lobes gradually narrowed, slightly glandular- serrate, usually deciduous before the fruit ripens; flesh thick, yellow, dry and mealy; nutlets 4 or 5, dark-colored, rounded on the back, 1' long. A tree, 18°-20° high, with a tall trunk 8'-10' in diameter, wide-spreading branches ROSACEA 431 forming a handsome symmetrical head, and stout branchlets dark green and coajied with matted pale hairs when they first appear, becoming light red-brown, and light orange-brown and very lustrous in their second year, and armed with thick nearly straiglit bright chestnut-brown spines often 3' in length. Distribution. Sandy shores of Lake Zurich, Lake County, Illinois. C4. Crataegus Kelloggii, Sarg. Leaves broadly ovate to suborbicular, rounded and often short-pointed at the apex, rounded, broadly cuneate or truncate at the entire base, coarsely serrate above, with straight gland-tipped teeth, and divided usually only above the middle into several short broad acute or acuminate lobes, about half grown when the flowers open during the last week of April and then very thin, yellow-green, covered above with short pale hairs and pubescent below along the midribs and veins, and at matu- rity thin but firm in texture, dark yellow-green, glabrous and smooth on the upper surface, pale and glabrous on the lower surface with the exception of a few hairs near the base of the thin yellow midribs and of the 4 or 5 pairs of slender prominent primary veins arching to the points of the lobes, 2'-2^' long, 1|'-2|' wide, and often broader than long; their petioles slender, slightly winged at the apex, villose while young, with long matted white hairs, becoming glabrous, and |'-1' long. Flowers ■|' in diameter, on slender hairy pedicels, in compact 5-10-flowered villose compound corymbs, with oblong-obovate to linear acuminate glandular bracts and bractlets mostly persistent until the flowers open; calyx-tube broadly obconic, slightly hairy at the base, glabrous above, the lobes slender, acuminate, glandular, with minute dark red stipitate glands, or entire, glabrous on the outer, sparingly villose on the inner surface; stamens 20; anthers pale rose color; styles 5. Fruit ripening at the end of September and soon falling, on long slender glabrous pedicels, in few-fruited drooping cbasters, subglobose to short-ovate, bright yellow, marked by many small pale dots, f'-l' in diameter; calyx small, with spreading reflexed lobes slightly vil- lose toward the apex and often deciduous from the ripe fruit; flesh thin, yellow, dry and mealy; nutlets 5, rounded and very slightly grooved on the back, about ^' long. ¥ A tree, 20°-25° high, with a tall trunk 4-5' in diameter, covered with nearly black 432 TREES OF NORTH AMERICA deeply furrowed bark, erect branches, and nearly straight branchlets dark green tinged with red and slightly villose when they first appear, bright red-brown and lustrous at the end of their first season, becoming dark dull reddish brown the fol- lowing year, and unarmed, or armed with slender nearly straight bright chestnut- brown shining spines usually about V long. Distribution. Banks of the Desperes River, St. Louis, Missouri; not common. 65. Crataegus Texana, Buckl. Leaves broadly ovate, acute or rarely rounded at the apex, broadly concave-cune- ate, and on leading shoots sometimes truncate or slightly cordate at the entire base, coarsely and doubly glandular-serrate above, and usually divided above the middle into 4 or 5 pairs of wide acute lobes, covered above when they unfold with short soft pale hairs and below with a thick coat of hoary tomentum, more tban half grown when the flowers open late in March, and at maturity thick and firm, dark green and lustrous above, pale and pubescent or tomentose below, particularly on the stout midribs, primary veins, prominent secondary veins, and reticulate veinlets, 3'-4' long, 2^'-3' wide; their petioles stout, deeply grooved, more or less winged above, at first tomentose, ultimately nearly glabrous, ^'-f' long. Flo"wers |' in diam- eter, on elongated slender pedicels, in broad open many-flowered compound to- mentose corymbs, with oblong or oblong-obovate acute conspicuous villose bracts and bractlets often 1^' in length; calyx-tube broadly obconic, coated with pale tomentum, the lobes foliaceous, gradually narrowed from broad bases, acuminate, coarsely gland- ular-serrate, and villose, with long matted pale hairs; stamens 20; anthers large, dark red; styles 5, surrounded at the base by a narrow ring of pale tomentum. Fruit ripening toward the end of October, in drooping many-fruited tomentose ulti- mately glabrous clusters, pear-shaped and tomentose until nearly grown, and when fully ripe short-oblong or slightly obovate, rounded at the ends, bright scarlet, marked by occasional large pale dots, puberulous at the apex, |'-1' long; calyx enlarged, with glandular-serrate usually erect lobes, dark red at the base on the upper side, often deciduous before the ripening of the fruit; flesh thick, yellow, sweet, and edi- ble ; nutlets 5, thick, slightly grooved on the back, \'-^' long. A tree, often 30° high, with a tall trunk sometimes a foot in diameter, thick branches ascending while the tree is young, forming an open irregular crown and ROSACEJE 433 spreading iu old age into a broad symmetrical round-topped head, and branchlets dark bronze-green and covered with long matted white hairs when they first appear, becoming dull reddish brown and ultimately pale ashy gray, and armed with occa- sional thin nearly straight bright chestnut-brown lustrous spines usually about 2' long, or often unarmed. Distribution. Rich bottom-lands, central and western Texas. 66. Crataegus quercina, Ashe. Leaves oval to obovate, usually acute or occasionally rounded at the apex, full and rounded and gradually or abruptly narrowed to the entire base, irregularly doubly serrate above, with slender glandular teeth, when they unfold conspicuously plicate, often dark red and coated with long soft pale hairs and covered below with a thick coat of silvery white shining tomentum, about one third grown when the flowers open from the middle to the end of March, and at maturity thin but firm in texture, dark green, lustrous and scabrous above, pale and pubescent or tomentose below, 2'-2^' long and broad, with slender midribs, 4 or 5 pairs of thin primary veins, and conspicuous reticulate veinlets; their petioles stout, tomentose, about ^' long; on leading shoots broadly ovate or oblong-oval, full and rounded at the base, somewhat divided into 3 or 4 pairs of short acute lobes, frequently 4' long and broad, with foliaceous lunate coarsely glandular-dentate stipitate stipules |' long. Flo"wers |' in diameter, on long slender tomentose pedicels, in broad many-flowered lax hoary- tomentose corymbs, with oblong-obovate glandular-serrate villose bracts and bract- lets; calyx-tube narrowly obconic, hoary-tomentose, the lobes short, acute, coarsely glandular-serrate, and tomentose; stamens 20; anthers small, dark red; styles 5, surrounded at the base by tufts of long snow-white hairs. Fruit ripening after the middle of October, on slender nearly glabrous pedicels, in few-fruited tomentose spreading clusters, subglobose but often rather longer than broad, full and rounded at the ends, tomentose until nearly fully grown, glabrous at maturity, dark red, marked by numerous large pale dots, about ^' in diameter; calyx prominent, with short spreading often deciduous lobes; flesh thin, light yellow, hard and dry, gener- ally shrivelling before the fruit falls ; nutlets 5, rounded and ridged on the back, about Y long. A tree, remarkable for the lustre of its white tomentum, occasionally 25° high, 434 TREES OF NORTH AMERICA with a tall trunk 6-8' in diameter, covered with light gray scaly bark, becoming near the base of old trees deeply furrowed and nearly black, ascending branches forming a broad symmetrical head, and branchlets coated when they first appear with hoary tomentum, becoming light red-brown and more or less villose during their first season, glabrous and rather darker in their second year, and armed with numerous straight or slightly curved chestnut-brown shining spines usually I'-l^' long. Distribution. Sandy bottom-lands in open Live Oak forests on the Brazos River, Columbia, Texas. 67. Crataegus pyriformis, Britt. Leaves oval or broadly ovate, acute and often short-pointed at the apex, grad- ually narrowed and concave-cuneate at the entire base, sharply and sometimes doubly serrate above, with straight glandular teeth, and often slightly and irreg- ularly lobed above the middle, fully grown when the flowers open about the 10th of May and then membranaceous, light yellow-green, roughened above by short rigid pale hairs and pubescent on the lower surface, particularly along the slender mid- ribs and 5 or 6 pairs of remote primary veins, and at maturity thin and firm, lus- trous and scabrous above, pale and pubescent below, generally about 3' long and 2' wide ; their petioles slender, winged at the apex, tomentose, ultimately pubescent, I'-l^' long; on vigorous shoots usually ovate, coarsely serrate, more deeply lobed and frequently 4'-5' long and 3'^' wide, with foliaceous lunate acuminate villose coarsely serrate stipules sometimes ^ in length. Flowers 1' in diameter, on elongated slen- der tomentose pedicels, in broad compound many-flowered lax corymbs ; calyx-tube narrowly obconic, villose, the lobes narrow, acuminate, glandular-serrate, and covered more or less thickly with pale hairs; stamens 20; anthers pale rose color; styles 4, or usually 5, surrounded at the base by a broad ring of pale tomentum. Fruit ripening in October, on long slender pubescent pedicels, in drooping few-fruited clusters, ob- ovate, full and rounded at the ends, bright cherry-red, lustrous, marked by occasional large pale dots, about f long, 1' wide, the calyx prominent, with linear glandular- serrate closely appressed lobes often deciduous before the fruit ripens; flesh thin, light yellow, juicy; nutlets 4, usually 5, deeply divided along the back into 2 rounded ridges, dark brown, -I' long. ROSACEA 435 A tree, 25°-30° high, with a trunk a foot in diameter, spreading branches form- ing a broad symmetrical head, and branchlets light green and villose when they first appear, with long matted pale hairs, dull red-brown and pubescent in their first sea- son, becoming glabrous the following year, and armed with occasional thin nearly straight bright chestnut-brown shining spines usually about 1^' long. Distribution. Rich bottom-lands of the streams of Ridley County, southeastern Missouri. 68. Crataegus lanuginosa, Sarg. Leaves ovate to suborbicular, acute or rounded and short-pointed at the apex, broadly cuneate or rounded at the entire base, coarsely and sharply doubly serrate above, with glandular teeth, and often irregularly divided above the middle into short broad acute lateral lobes, less than half grown when the flowers open during the last week of April and then dark green and villose above and covered below with a thick coat of hoary tomentum, and at maturity subcoriaceous, dark blue- green, lustrous, and scabrate on the upper surface, yellow-green and tomentose on the lower surface, l^'-2' long, I'-l^' wide, with thick midribs and 3-5 pairs of stout primary veins extending obliquely to the points of the lobes ; their petioles stout, tomentose, ^'-f long; on vigorous shoots often broad, ovate, very coarsely glandu- lar-serrate, rounded or truncate at the base, frequently 3' long and broad, their stip- ules lunate, coarsely serrate, subcoriaceous, ^'-^' long. Flowers ^' in diameter, on short stout pedicels covered with long matted pale hairs, in compact many* flowered hoary-tomentose corymbs, with large glandular-serrate conspicuous bracts and bractlets persistent until the flowers open; calyx-tube broadly obconic, hairy, the lobes short, broad, acute, glandular, with minute stipitate glands, densely villose on the outer, slightly villose on the inner surface; stamens 20; anthers rose color; styles 5, surrounded at the base by large tufts of snow-white hairs. Fruit ripening at the end of October, on short tomentose erect pedicels, in few-fruited clusters, subglobose to short-oblong, full and rounded and slightly hairy at the ends, ^' in diameter; calyx enlarged, with villose coarsely serrate usually erect spreading or incurved persistent lobes, bright red on the upper side near the base; flesh thin, orange color, dry and mealy; nutlets 5, thin, rounded and very irregularly ridged on the back, about \' long. 436 TREES OF NORTH AMERICA A tree, sometimes 25° high, with a stout trunk covered with pale bark, spreading and erect branches, and stout zigzag branchlets light green and villose at first, dull red-brown and sparingly villose or pubescent at the end of their first year, becoming dark or light gray-brown, and armed with many long straight purple shining ulti- mately ashy gray spines l^'-3^', usually about 2-f long. Distribution. Southwestern Missouri; common near Webb City; well distin- guished by the distinctly blue color of the small leaves, and by the dark crimson hard fruits and the remarkable development of the spines unusual in this group. 69. Crataegus induta, Sarg. Turkey Apple. Leaves oblong-obovate, acute, cuneate, rounded or rarely truncate at the broad entire base, very coarsely and doubly serrate above, with glandular teeth, and slightly and irregularly divided into broad acute lateral lobes, about one third grown when the flowers open from the middle to the end of April and then thin, light yellow- green and roughened above by short lustrous white hairs and hoary-tomentose below, and at maturity thin, dark yellow-green and scabrate on the upper surface, pale and tomentose or pubescent on the lower surface, particularly along the stout midribs and 4 or 5 pairs of prominent primary veins, 3^-4' long, 2^'-3' wide ; their petioles slender, more or less wing-margined at the apex, glandular, hoary-tomentose while young, becoming sparingly villose in the autumn, l^'-l^ long. Flo-wers |' in diameter, on slender tomentose pedicels, in broad many-flowered hoary-tomentose compound corymbs; calyx-tube narrowly obconic, thickly coated with long densely matted white hairs, the lobes small, acuminate, glandular-serrate, villose; stamens 20; anthers small, rose color; styles 5, surrounded at the base by a broad ring of snow-white hairs. Fruit ripening the middle of October, on stout villose pedicels, in few-fruited clusters, short-oblong, full and rounded and villose at the ends, crimson or reddish yellow, lustrous, marked by small pale dots, |'-2' in diameter; calyx prominent, with a short tomentose tube and much enlarged coarsely glandular-ser- rate hairy erect incurved lobes often deciduous from the ripe fruit; flesh thick, orange-colored, with an astringent subacid flavor; nutlets 5, thin, rounded and slightly grooved on the back, y^g'-f ' long. A tree, sometimes 26° high, with a trunk often a foot in diameter, covered with ROSACEJE 437 thick dark brown furrowed bark, large spreading and ascending branches forming an open irregular head, and stout branchlets covered at first with long matted white hairs, light orange-brown, lustrous, and puberulous at the end of their first season, becoming ashy gray or liglit grayish brown the following year, and armed with very numerous stout nearly straight dark purple shining spines usually about 2^ long. Distribution. Dry upland woods, valley of the Red River near Fulton, Arkansas; common. **Stamens 10. -i- Anthers yellow. 70. Crataegus Arnoldiana, Sarg. Leaves broadly ovate or rarely oval, acute, regularly divided above the middle into numerous short acute lobes, and coarsely doubly serrate, with straight glandular teeth except at the rounded truncate or occasionally cuneate base, when they unfold coated with dense matted pale hairs, about half grown when the flowers open at the end of May or early in June and then roughened above by stout stiff hairs and soft- pubescent below, and at maturity membranaceous, smooth, very dark green and lus- trous above, paler below, 2'-3' long and broad, slightly villose on the under side of the slender midribs and thin prominent remote primary veins extending to the points of the lobes; their petioles slender, at first densely villose, becoming puberulous, I'-l^' long. Flowers about |^' in diameter, on slender pedicels, in broad compound many-flowered tomentose corymbs; calyx-tube broadly obconic, densely tomentose, the lobes narrow, elongated, acuminate, glandular-serrate, villose on both surfaces; stamens 10; anthers large, pale yellow; styles 3-5, usually 3 or 4, surrounded at the base by a broad ring of thick hoary tomentum. Fruit ripening about the middle of August and mostly falling before the first of September, on stout pedicels, in erect spreading or rarely drooping few-fruited villose clusters, subglobose but rather longer than broad, bright crimson marked by many large pale dots, villose, par- ticularly toward the ends, with long scattered white hairs, f long; calyx little enlarged, with elongated coarsely glandular-serrate wide-spreading lobes often de- ciduous before the fruit ripens; flesh thick, bright yellow, subacid; nutlets 3 or 4, 438 TREES OF NORTH AMERICA light-colored, prominently ridged on the back, with a high rounded ridge, about \' long. A tree, 15°-20° high, with a short trunk 10'-12' in diameter, stout ascending branches forming a broad open irregular head, and slender very zigzag branchlets clothed at first with long matted pale hairs, becoming dark orange-brown and very lustrous before midsummer, glabrous or puberulous during their first winter, bright orange-brown or gray-brown during their first season, and armed with numerous stout straight or slightly curved bright chestnut-brown shining spines 2i'-3' long. Distribution. Thickets on a dry bank in the Arnold Arboretum and in the valley of the Mystic River at Medford, Massachusetts. Often cultivated in the parks and gardens in the neighborhood of Boston; very conspicuous and easily recognized in winter by its ascending remarkably zigzag branchlets. 71. Cratcegus Champlainensis, Sarg. Leaves ovate, acute, rounded, truncate, slightly cordate or broadly cuneate at the base, usually divided into 2 or 3 pairs of short narrow acute lobes, and coarsely and frequently doubly serrate, with glandular teeth, roughened above by short pale hairs and villose below when they unfold, nearly fully grown when the flowers open early in June, and at maturity thick and firm in texture, conspicuously blue-green and glabrous above, light yellow-green and somewhat pubescent below on the slen- der midribs and remote primary veins, 2'-2^' long and I'-l^' wide; their petioles slender, more or less tomentose at first, usually becoming glabrous and light red below the middle before autumn, and |'-1' long. Flowers |' in diameter, on short slender villose pedicels, in compact few-flowered compound densely villose corymbs; calyx-tube narrowly obconic, coated with thick hoary tomentum, the lobes lanceolate, finely glandular-serrate, tomentose on the outer surface, usually only below the mid- dle, villose on the inner surface; stamens 10; anthers small, light yellow; styles 5, surrounded at the base by tufts of pale hairs. Fruit ripening early in September and usually remaining on the branches during the remainder of the year, on short pedicels, in compact erect villose clusters, obovate or oblong, bright scarlet, marked by scat- tered pale dots, more or less villose or pubescent toward the ends; calyx prominent, persistent, with a long tube, the lobes gradually narrowed from broad bases, acumi- ROSACEA 439 nate, finely glandular-serrate, villose, dark red on the upper side below the middle, spreading or erect; flesh thick, yellow, dry and mealy; nutlets 5, broadly ridged on the back, f^' long. A tree, 15°-20° high, with a tall stem 8'-10' in diameter, covered with deeply fis- sured bark separating into thin loose plate-like scales, stout wide-spreading branches forming a broad round-topped often symmetrical head, and slender somewhat zigzag branchlets coated at first with hoary tomentum, soon becoming glabrous and light chestnut-brown and lustrous, and armed with straight or slightly curved chestnut- brown spines l^'-2' long. Distribution. Limestone ridges; valley of the St. Lawrence Kiver near Montreal, southward through the Champlain valley. 72. Crataegus submollis, Sarg. Leaves ovate, acute, gradually narrowed and cuneate at the nearly entire base, coarsely doubly serrate above, with straight glandular teeth, and divided into 3 or 4 pairs of short acute lobes, half grown at the end of May or early in June when the flowers open and then roughened above by short stiff pale hairs and soft-pubescent below, particularly along the midribs and veins, and at maturity membranaceous, dark yellow-green and scabrous above, pale below, 3'-3^' long, 2'-2^' wide, with thick yellow midribs and remote primary veins puberulous on the lower side; their petioles stout, nearly terete, more or less winged at the apex, at first tomentose, puberulous at maturity, often bright red toward the base, V-2' long; on vigorous shoots broadly ovate, cuneate, rounded, truncate, or occasionally slightly cordate at the base, often 4' long and 3'-3^' wide, with lunate coarsely glandular-dentate stipules frequently nearly V long. Flo"wers 1' in diameter, on long slender pedicels, in broad many-flowered tomentose compound corymbs; calyx-tube narrowly obconic, covered with a thick coat of long matted white hairs, the lobes gradually narrowed from broad bases, acute, glandular, with large red stipitate glands, glabrous or villose on the outer surface; stamens 10; anthers small, pale yellow; styles 3-5, surrounded at the base by a narrow ring of long white hairs. Fruit ripening and falling during the first half of September, on elongated slender villose pedicels, in broad gracefully drooping many-fruited clusters, pear-shaped, bright orange-red, lustrous, marked by 440 TREES OF NORTH AMERICA large scattered pale dots, puberulous toward the base, about f long; calyx much enlarged, with erect coarsely glandular-serrate persistent lobes; flesh yellow, thin, subacid, dry and mealy; nutlets usually 5, rounded and slightly ridged on the back^ about ^' long. A tree, 20°-25° high, with a tall trunk occasionally a foot in diameter, ascending or spreading ashy gray branches forming a broad handsome head, and branchlets dark green and coated with hoary tomentum when they first appear, light or dark orange-brown and still slightly tomentose at midsummer, becoming glabrous, lustrous, and light red-brown or dark orange-brown, and armed with numerous thin straight or somewhat curved bright chestnut-brown shining spines 2^'-3' in length. Distribution. Rich damp hillsides and the borders of woods and roads, valley of the St. Lawrence River in the Province of Quebec to that of the Penobscot River and Gerrish Island, Maine, to the coast of eastern Massachusetts, and near Albany, New York. -» — t- Anthers rose color. 73. Crataegus anomala, Sarg. Leaves ovate, acute, divided above the middle into 5 or 6 pairs of short acute or acuminate lobes, and coarsely doubly serrate, with spreading glandular teeth except toward the broadly cuneate or occasionally rounded base, when they unfold conspic- uously plicate, scabrous above, with short appressed pale hairs, and villose below, particularly along the slender midribs and thin remote primary veins arching to the points of the lobes, about one third grown when the flowers open at the end of May, and at maturity membranaceous, light yellow-green, smooth and glabrous above, paler and villose below, 2^'-3' long, 2'-3' wide ; their petioles stout, glandular on the upper side, with scattered dark glands, f '-1' long. Flowers saucer-shaped, ^' in diameter when fully expanded, on elongated slender hairy pedicels, in broad loose many-flowered villose corymbs; calyx-tube narrowly obcouic, coated with long matted pale hairs, the lobes elongated, acuminate, coarsely glandular-serrate, pubescent on the lower surface and tomentose on the upper; stamens usually 10, occasionally 7 or 8; anthers large, bright red; styles 4 or 5, surrounded at the base by a narrow ring of pale tomentum. Fruit ripening in October, on long slender pedicels, in loose KOSACE^ 441 many-fruited slightly villose clusters, obovate to oblong, gradually narrowed to the rounded base, crimson, lustrous, marked by large pale dots, slightly villose, particu- larly toward the full and rounded apex, f '— |' long, ^'-^' wide ; calyx large and promi- nent, with elongated acuminate lobes abruptly narrowed from broad bases, dark red on the upper side, tomentose on the lower, finely glandular-serrate, spreading or closely appressed, often deciduous before the ripening of the fruit; flesh thin, light yellow, somewhat juicy; nutlets 4 or 5, thin, prominently and irregularly ridged on the back, Y~^^' ^°^S- A bushy tree, sometimes 20° high, with a short trunk 6' in diameter, covered with pale gray-brown scaly bark, stout ascending branches, and slender somewhat zigzag brauchlets at first dark green and villose, with long matted white hairs, and puberu- lous and light orange-brown during their first season, becoming glabrous and orange- brown or bright red, and armed with numerous stout straight or slightly curved bright chestnut-brown spines l^'-2' long. Distribution. Low limestone ridges near the banks of the St. Lawrence River iu the Caughnawaga Indian Reservation opposite Lachine in the Province of Quebec. 74. Crataegus Ell-wangeriana, Sarg. Leaves oval, acute, full and rounded or broadly cuneate at the entire base, irreg- ularly divided usually only above the middle into numerous short acute lobes, and coarsely and often doubly serrate, with straight or incurved glandular teeth, about half grown when the flowers open the middle of May, and then roughened above by short pale hairs and villose below along the slender midribs and primary veins, and at maturity membranaceous, light green and scabrous on the upper surface, pale and nearly glabrous on the lower surface, 2^'-3i' long and 2'-3' wide; their petioles slen- der, at first villose, finally glabrous, l^'-2' long; stipules oblong-obovate, acute, villose, coarsely glandular-serrate, ^' long, those of the upper leaves mostly persistent until after the ripening of the fruit. Flo"wers 1' in diameter, on short stout hairy pedicels, in many-flowered densely villose corymbs; calyx-tube broadly obconic and villose, the lobes elongated, lanceolate, glandular, with small pale stalked glands, villose on both surfaces; stamens 10, sometimes 8; anthers small,' rose color; styles 3-5. Fruit ripening and falling at the end of September, on slender glabrous pedicels, in droop- 442 TREES OF NORTH AMERICA ing villose many-fruited crowded clusters, oblong, full and rounded at the ends, bright crimson, very lustrous, covered at the ends with scattered pale hairs, 1' long, and ^'-f wide; calyx little enlarged, the lobes elongated, glandular-serrate above the middle, villose on the inner surface, and spreading, or erect and incurved; flesh thin, yellow, juicy and acid; nutlets 3-5, thick, pale brown, deeply and often doubly and irregularly grooved on the back, \'-^' long. A tree, sometimes 20° high, with a tall trunk often a foot m diameter, covered with pale gray scaly bark, stout ascending branches forming a broad symmetrical head, and slender zigzag branchlets dark green and covered at first with long matted pale hairs, becoming in their first summer light chestnut-brown and slightly villose, dark chestnut-brown and very lustrous in their second year, and armed with stout straight or somewhat curved dark chestnut-brown shining spines l^'-2' long. Distribution. Common in the neighborhood of liochester, New York. VIII. FLABELLATiE. Stamens 20 ; leaves yellow-green and scabrate above. Leaves ovate ; fruit obovate to short-oblong, bright red, often slightly pruinose ; anthers deep rose-purple. 75. C. Neo-Londinensis (A), Leaves oblong-ovate ; fruit obovate, crimson, lustrous ; anthers pink. 76. C. Hillii (A). Stamens 10-20, usually 10 ; leaves broadly ovate, dull dark green and scabrate above ; fruit short-oblong to slightly obovate, dull red to crimson ; anthers pinkish purple. 77. C. assurgens (A). Stamens usually 10. Fruit on short stout pedicels ; leaves yellow-green and glabrous above. Leaves oval, drooping, conspicuously concave ; fruit short-oblong, dark dull red, villose at the ends ; anthers purple. 78. C. Pringlei (A). Leaves oval to oblong-ovate ; fruit short-oblong, crimson, very lustrous ; anthers dark reddish purple. 79. C. lobulata (A). Fruit on long slender pedicels ; leaves broadly ovate to obovate or rhomboidal, dark rich green and scabrate above ; fruit short-oblong, bright scarlet and lustrous ; anthers rose color. 80. C. pedicellata (A). Stamens usually 5-7, rarely 10. Fruit short-oblong. Leaves oval or ovate, conspicuously yellow-green ; fruit short-oblong, crimson, lustrous ; anthers dark reddish purple. 81. C. Holmesiana (A). Leaves oblong-ovate, deep yellow-green, nearly smooth above ; fruit short-oblong, yellowish red, glaucous ; anthers pink. 82. C. acclivis (A). Fruit globose to obovate. Leaves broadly ovate, light yellow-green, lustrous and glabrous above ; fruit bright red or scarlet, becoming purplish ; anthers dark rose color. 83. C. delecta (A). Leaves oblong-ovate, dark yellow-green and scabrate above ; fruit crimson ; anthers pale rose color. 84. C. sertata (A). Leaves oblong-ovate, subcoriaceous, dark dull green and glabrous above ; fruit bright cherry-red, pruinose ; anthers deep rose color. 85. C. Eamesi (A). ROSACEA 443 *Stamens 20. 75. Crataegus Neo-Londinensis, Sarg., n. sp. Leaves ovate, acute or acuminate, full and rounded, truncate or broadly concave- cuneate at the wide entire or glandular base, sharply often doubly serrate above, with straight glandular teeth, and divided into numerous short narrow acuminate lateral lobes, about half grown when the flowers open the middle of May and then very thin, light yellow-green and roughened above by short white rigid hairs and paler and sparingly hairy below, and at maturity membranaceous, lax and spreading, dull yellow-green and scabrate on the upper surface, pale green and gla- brous below, or occasionally slightly hairy along the under side of the stout yellow midribs and thin remote primary veins arching to the points of the lobes, 3'^' long, 21'-3y wide, and only slightly larger on vigorous shoots; their petioles slender, nearly terete, glandular, at first slightly hairy, becoming glabrous and purplish toward the base, l'-2' long. Flowers V-\\' in diameter, on slender sparingly villose pedicels, in lax slightly drooping usually 5-12-flowered villose or nearly glabrous corymbs, with linear often slightly falcate glandular bracts and bractlets, persistent until after the flowers open; calyx-tube narrowly obconic, covered with short matted pale hairs, the lobes gradually narrowed from broad bases, acuminate, coarsely glandular-serrate below the middle, glabrous on the outer, villose on the inner sur- face; stamens 17-21, usually 20; anthers -deep rose-purple; styles 4 or 5, usually 5, surrounded at the base by a narrow ring of pale tomentum. Fruit ripening and beginning to fall early in September, on stout villose or glabrous pedicels, in large drooping few-fruited clusters, obovate or short-oblong, bright red, often slightly pru- inose, marked by numerous minute pale dots, f — |' long, \'-^' wide; calyx enlarged, prominent, with spreading or erect and incurved coarsely serrate persistent lobes, their upper surface bright red below the middle and covered above with soft white hairs; flesh thick, orange-yellow, soft, juicy and acidulous; nutlets 4 or 5, thin, nar- rowed at the ends, acute at the base, rounded at the apex, rounded and sometimes broadly grooved on the back, about ^^g' long and ^~ high. A tree, often 20° high, with a tall trunk 8'-10' in diameter, covered with light grayish brown slightly fissured bark, large spreading and drooping branches forming 444 TREES OF NORTH AMERICA an open head often 20° across, and slender branchlets olive-green and slightly hairy at first, dull red-brown and marked by many large pale lenticels during their first season, becoming light gray and rather lustrous, and armed with stout straight dark purple shining ultimately gray spines often 2' long. Distribution. Borders of woods near the shores of Fisher's Island Sound, Mum- ford's Point, Grotou (once a part of New London), and Lyme, Connecticut (C. B. Graves). 76. Crataegus Hillii, Sarg. Leaves oblong-ovate, acuminate, rounded or rarely cuneate at the broad entire base, coarsely doubly serrate above, with straight glandular teeth, and divided into numerous short acuminate lateral lobes, when they unfold coated above with short lustrous white hairs and densely tomentose below, particularly on the midribs and veins, about one fourth grown when the flowers open the middle of May and then roughened above by short hairs and still villose below, and at maturity thin but firm in texture, light yellow-green and scabrate on the upper surface, pale yellow-green on the lower surface, 2^'-3' long, 2'-2|' wide, with slender midribs often slightly hairy near the base and 4 or 5 pairs of thin primary veins extending obliquely to the points of the lobes; their petioles slender, densely villose early in the season, slightly hairy in the autumn, and f'-l^ lo"g; stipules oblong, often elongated, coarsely glandular-serrate, villose, usually persistent until the flowers open; on vigorous shoots often truncate or slightly cordate at the base, deeply lobed, with broad triangular lobes, and 3^-4' long and broad, with stout rose-colored glandular petioles and hairy lunate glandular- serrate stipules. Flowers about |' in diameter, on slender densely villose pedicels, in broad many-flowered hairy compound corymbs, their large linear to oblong bracts and bractlets occasionally persistent until midsummer; calyx-tube narrowly obconic, thickly covered with long spreading white hairs, the lobes abruptly narrowed at the base, broad, acuminate, coarsely glandular-serrate, glabrous on the outer, villose on the inner surface; stamens 20; anthers pink; styles 4 or 5, sur- rounded at the base by a narrow ring of pale tomentum. Fruit ripening from the middle to the end of September, on slender puberulous pedicels, in drooping few- fruited clusters, obovate, full and rounded at the apex, gradually narrowed to the rounded base, crimson, lustrous, marked by small pale dots, ^'-|' long, |'-^' wide; ROSACEA 445 calyx only slightly enlarged, with closely appressed coarsely serrate lobes often deciduous from the ripe fruit; flesh yellow, thin, acidulous, juicy; nutlets 4 or 5, thin, gradually narrowed and acute at the ends, irregularly ridged and sometimes grooved on the back, about |' long. A tree, 25°-30° high, with a trunk sometimes a foot in diameter and 6° or 7° long, covered with close light gray bark tinged with red and divided by shallow fissures into small plates, stout ascending branches forming an open irregular often round- topped head, and slender nearly straight branchlets densely villose when they first appear, dark orange color tinged with red and sparingly villose when the flowers open, becoming bright red-brown and lustrous at the end of their first season and dark dull reddish brown the following year, and sparingly armed with slender nearly straight red-brown shining spines l^'-2' long. Distribution. Open woods near the borders of streams in moist rich soil; north- eastern Illinois, Thatcher's Park, Glendon Park, and River Forest, near Chicago; not common. - ** Stamens 10-20, usually 10. 77. Crataegus assurgens, Sarg. Leaves broadly ovate, acuminate, rounded or rarely cuneate at the wide entire base, sharply doubly serrate above, with straight gland-tipped teeth, and slightly ""^■-V^^;^ divided into 3 or 4 pairs of small acuminate lobes, about one third grown when the flowers open the middle of May and then roughened above by short white hairs and glabrous or sparingly villose below, with persistent hairs along the slender yellow midribs, and the veins arching obliquely to the points of the lobes, and at maturity membranaceous, dull dark green and scabrate on the upper surface, light yellow- green on the lower surface, 2|'-3y long, 2^-2^' wide ; their petioles slender, villose early in the season, becoming pubescent, I'-l^' long; on vigorous shoots often deeply lobed, very coarsely serrate, sometimes 4' long and wide, with long stout glandular petioles, and foliaceous lunate acuminate coarsely glandular-serrate persistent stip- ules. Flo"wers f '-|' in diameter, on short villose pedicels, in compact 8-lo-flowered hairy corymbs, with oblong, acuminate, glandular bracts and bractlets, deciduous 446 TREES OF NORTH AMERICA with the opening of the flowers; calyx-tube narrowly obeonic, sparingly villose, the lobes elongated, narrow, acuminate, tipped with minute red glands, finely glandular- serrate, glabi'ous on the outer, pubescent on the inner surface; stamens 10-20, usually 10; anthers pinkish purple; styles 4 or 5, surrounded at the base by tufts of pale hairs. Fruit ripening from the 15th to the 20th of September, and usually falling about the 1st of October, on short glabrous pedicels, in drooping few-fruited clusters, short-oblong to slightly obovate, dull red to crimson, ^'-f long, about ^' wide; calyx sessile, with spreading closely appressed serrate usually persistent lobes; flesh thin, pale yellow or nearly white, acidulous; nutlets 4 or 5, broad, narrowed and acute at the ends, prominently ridged on the back, with a high narrow ridge, or often grooved, about \' long. A tree, sometimes 25° high, with a trunk 2'-6' in diameter and often 6°-9° long covered with close dark gray bark, ascending branches forming an oblong, open head, and slender branchlets light orange-yellow and covered when they first appear with long scattered caducous white hairs, becoming bright red-brown and lustrous, and dark gray-brown the following year, and armed with many stout usually slightly curved bright red shining spines, I'-l^ long. Distribution. River banks and low woods in rich soil; northeastern Illinois, Ley den township, Lagrange, and Thatcher's Park, near Chicago. ***Stamens usually 10, 78. Crataegus Pringlei, Sarg. Leaves oval, acute, rounded or often abruptly narrowed and cuneate at the base, occasionally irregularly lobed above the middle, with short broad acute lobes, and coarsely and often doubly serrate, with glandular teeth, as they unfold villose on both surfaces, and often more or less tinged with red, when the flowers open, usually in the last week of May, roughened above by short closely appressed pale hairs and glabrous below with the exception of a few hairs on the slender midribs and remote ^iAH^^-^ primary veins, and at maturity thin, glabrous, and bright yellow-green on the upper surface, pale below, 2'-2y long, l|'-2i' wide, usually conspicuously concave by the gradual turning down of the blades from the midribs to the margins, and drooping KOSACE^ 447 9 on long thin slender glandular petioles at first villose, ultimately glabrous, from V- 1|' long; on vigorous shoots sometimes truncate or slightly cordate at the base and frequently 3' long and broad. Flovrers about f in diameter, on stout hairy pedicels, in many-flowered compound villose corymbs; calyx-tube narrowly obcouic, villose, particularly toward the base, the lobes narrow, acuminate, coarsely glandular-serrate, villose on both surfaces or only on the inner surface; stamens 10, occasionally 5-10; anthers small, purple; styles 3-5, surrounded at the base by conspicuous tufts of pale tomentum. Fruit ripening and falling late in September or early in October, on stout pedicels, in erect villose mostly few-fruited clusters, short-oblong, dark dull red, marked by few dark dots, villose at the ends, with long scattered pale hairs, f long and I' thick; calyx little enlarged, the lobes gradually narrowed from broad bases, acuminate, glandular-serrate, often erect; flesh thick, yellow, dry and acid, with a dis- agreeable flavor; nutlets 3-5, rounded and slightly ridged on the back, ^' long. A tree, occasionally 25° high, with a tall trunk 10^-12' in diameter, with thin bark readily separating into large flakes covered with small loose dark red-brown scales, stout branches forming a wide symmetrical head, and slightly zigzag branchlets at first dark green and villose, soon becoming glabrous, chestnut-brown and lustrous, bright orange-brown during their second year, and armed with thick straight or somewhat curved chestnut-brown spines often 1^' long. Distribution. Southern New Hampshire, through southern Vermont to western Massachusetts, w^estern New York and Ontario, and through the southern peninsula of Michigan to northeastern Illinois. 79. Cratsegus lobulata, Sarg. Red Haw. Leaves oval to oblong-ovate, acute at the apex, broadly cuneate or rounded at the entire base, sharply and often doubly serrate above, with straight glandular teeth. and deeply divided into numerous narrow acute or acuminate lobes spreading or pointing to the apex or to the base of, the leaf, when they first appear and until after the opening of the flowers during the last week in May covered above with short soft pale hairs and slightly pubescent below along the slender midribs and thin primary veins arching to the points of the lobes, and at maturity thin, dark yellow- green and glabrous on the upper surface, paler on the lower surface, with occa- sional short white hairs toward the base of the midribs, 2-^'-3^' long, and 2'-2^' wide; 448 TREES OF NORTH AMERICA their petioles sleiuler, nearly terete, at first tomentose, pafticularly at the base, becoming pubescent or nearly j^hibrons and bright red, and I'-l,^' long. Flowers ^' in diameter, on elongated slender pedicels, in rather compact many-llowered tomen- tose componnd corymbs, with linear-lanceolate glandular-serrate bright red bracts and l)ractlets; calyx-tube broadly obconic, glabrous or villose toward the base, dark red, the lobes gradually narrowed from broad bases, glabrous, coarsely glandular-serrate, with large dark red stipitate glands; stamens usually 10, occasionally 5-10; anthers small, dark reddish purple; styles 3-5, sometimes surrounded at the base by a ring of pale tomentum. Fruit ripening and falling early in October, on short stout pedicels, in erect compact tomentulose clusters, short-oblong, somewhat flattened at the full and rounded ends, bright crimson, very lustrous, marked by occasional small white dots, about I' long and |' thick; calyx little enlarged, the lobes small, lanceolate, coarsely glandular-serrate, tomentose on the upper surface, erect and incurved, persistent; flesh thick, yellow, sweet and juicy; nutlets 3-5, thin, dark-colored, ridged and often grooved on the back, \' long. A tree, occasionally 35° high, with a straight trunk often a foot in diameter, cov- ered with dark red-brown fissured bark broken into small thick plate-like scales, stout generally ascending branches forming an open usually narrow irregular head, and slender branchlets, dark green and covered with matted pale hairs when they first appear, becoming bright chestnut-brown and very lustrous during their first season and light orange-brown the following year, and armed with many stout nearly straight chestnut-brown spines rarely more than V in length. Distribution. Burlington, Vermont, and southward through the Champlain val- ley, and western Massachusetts to northern Connecticut; common. 80. Crataegus pedicellata, Sarg. Leaves broadly ovate or occasionally obovate or rhomboidal, acute or acuminate, broadly cuneate or rounded at the entire base, coarsely often doubly serrate above, with spreading glandular teeth, and divided above the middle into 4 or 5 pairs of short acute or acuminate lobes, nearly two thirds grown when the flowers open during the last week in May, and then roughened above by short rigid pale hairs and gla- brous below, and at maturity membranaceous, dark rich green and scabrous on the ROSACEA 449 upper surface, pale on the lower surface, 3'-4' long and 2'-3' wide, with slender mid- ribs, and thin remote primary veins arching to the points of the lobes; their petioles slender, nearly terete, glandular, with minute scattered dark glands, at first villose, becoming glabrous, 1^'-2L' long; on vigorous shoots sometimes truncate or slightly cordate at the base; their stipules strongly falcate, stipitate, coarsely glandular-ser- rate, and often ^' long. Flowers i' in diameter, on thin elongated pedicels, in loose lax many -flowered slightly villose corymbs; calyx-tube narrowly obconic, glabrous, the lobes broad, acute, very coarsely glandular-serrate; stamens usually 10; anthers rose color; styles 5, surrounded at the base by a conspicuous ring of pale tomentum. Fruit ripening and falling during September, on long slender pedicels, in few-fruited drooping glabrous clusters, pyriform until nearly fully grown, becoming short-oblong when fully ripe, rounded at the ends, bright scarlet, lustrous, marked by numerous small dark dots, |' long and ^'-f thick; calyx large and conspicuous, the lobes much enlarged, coarsely serrate, and usually erect and incurved; flesh pale, thin, dry and mealy; nutlets 5, narrowed and acute at the ends, rounded and deeply grooved on the back, about ^' long. A tree, 18°-20° high, with a tall trunk sometimes a foot in diameter, covered with close red-brown scaly bark, comparatively slender elongated spreading or ascending branches forming a handsome symmetrical head, and thin branchlets dark chestnut- brown and slightly villose at first, becoming very lustrous and ashy gray in their second year, and armed with straight or slightly curved shining chestnut-brown spines l^'-2^ long. Distribution. Western New York and southern Ontario; common. V Stamens usually 5-7. 81. Crataegus Holmesiana, Ashe. Leaves oval or ovate, acute or acuminate at the apex, rounded or broadly cuneate at the base, coarsely and doubly serrate above the middle, with straight teeth tipped at first with prominent dark red caducous glands, and usually divided into 3 or 4 pairs of short acute or acuminate lateral lobes, when they unfold dark red, roughened by rigid pale hairs on the upper surface, and glabrous or sometimes villose on the lower surface, scabrous above, pale yellow-green and nearly half grown when the flowers 450 TREES OF NORTH AMERICA open early in May, and at maturity thick and firm, almost smooth, conspicuously yel- low-green, usually about 2' long and 1|^' wide, witli prominent midribs often bright red on the lower side toward the base, and 4-C pairs of slender primary veins arching to the points of the lobes; their stipules slender, nearly terete, glandular, glabrous or sometimes puberulous while young, l'-l|' long; on vigorous shoots often broadly ovate, truncate or slightly cordate at the base, more coarsely serrate and more deeply lobed and frequently 4' long and 3' wide. Flcwers cup-shaped, ^'-f ' in diameter, on slender elongated pedicels, in loose compound glabrous or rarely puberulous many- flowered corymbs, with oblanceolate or linear acute glandular caducous bracts and bractlets; calyx-tube narrowly obconic, glabrous, more or less deeply tinged with red, the lobes elongated, acuminate, glandular-serrate, or often nearly entire; stamens usually 5, sometimes 6-8; anthers large, dark reddish purple; styles usually 3, sur- rounded at the base by a narrow ring of pale tomentum. Fruit ripening and falling early in September, on long slender pedicels, in many-fruited drooping clusters, short- oblong, full and rounded at the ends, crimson, very lustrous, marked by occasional small dark dots, about ^' long; calyx enlarged, conspicuous, with erect and incurved glandular-serrate lobes, bright red toward the base on the upper side; flesh thin, yellow, dry and mealy, with a disagreeable flavor; nutlets usually 3, light chestnut- brown, prominently grooved and ridged on the back, with a broad rounded ridge, about \' long. A tree, often 30° high, with a tall straight trunk 10'-15' in diameter, covered with pale gray-brown or nearly white scaly bark, stout ascending branches forming an open irregular rather compact head, and stout glabrous branchlets dark green more or less tinged with red when they first appear, becoming bright chestnut-brown or orange-brown and lustrous, and ultimately ashy gray, and armed with occasional thick mostly straight bright chestnut-brown shining spines l|'-2' long. Distribution. Rich moist hillsides and the borders of streams and swamps, neighborhood of Montreal and southern Ontario to the coast of southern Maine, central and western Massachusetts, western New York, Rhode Island, and eastern Pennsylvania; most abundant and of its largest size on the hills of Worcester County, Massachusetts. In Sellersville, Bucks County, Pennsylvania, in a form of this species (var. villipes, Ashe) the young branchlets, petioles, and corymbs are often puberulous and the under surface of the leaves more or less hairy, particularly on the midribs and veins. 82. Crataegus acclivis, Sarg. Leaves oblong-ovate, acuminate, broadly cuneate or rounded at the entire base, coarsely doubly serrate above, with straight gland-tipped teeth, and deeply divided into numerous wide-spreading acuminate lateral lobes, when they unfold tinged with red, densely villose on the upper surface, pubescent along the midribs and veins below, about half grown when the flowers open during the last week of May and then light yellow-green, slightly roughened above by short white hairs and pubescent along the midribs and veins below, and at maturity membranaceous, dark yellow- green and nearly smooth above, pale yellow-green and glabrous below, 2^'-3' long, 2'-2^' wide, with stout yellow midribs and 5 or 6 pairs of primary veins extending obliquely to the points of the lobes; their petioles slender, slightly wing-margined at the apex, glandular, with numerous small dark glands, densely villose early in the season, becoming puberulous or glabrous in the autumn, l^'-2' long; on vigorous shoots broadly ovate, acuminate, cordate at the wide base, deeply divided into wide ROSACEA 451 acute lateral lobes, and often 4'-5' long and wide, with foliaceous, lunate, coarsely glandular-serrate stipules, 1^' wide, and persistent throughout the season. Flowers I"' in diameter, on slender densely villose pedicels, in broad lax many-flowered long- branched hairy corymbs, the lower peduncles from the axils of upper leaves and often several-flowered, their bracts lanceolate, glandular, large and conspicuous, per- sistent until after the flowers open ; calyx-tube narrowly obconic, covered with a thick coat of long matted hairs, the lobes slender, elongated, acuminate, serrate, with occa- sional large gland-tipped teeth, glabrous on the outer, slightly villose on the inner surface; stamens usually 5; anthers pink; styles mostly 5. Fruit ripening the middle of September and soon falling, on long slender slightly hairy pedicels, in many- fruited drooping clusters, short-oblong, full and rounded at the ends, yellowish red, glaucous, marked by occasional pale dots, about |' long and -|' wide; calyx sessile, with usually erect enlarged coarsely serrate lobes villose on the upper side and often deciduous from the ripe fruit; flesh thick, yellow, rather juicy; nutlets usually 5, narrowed and acute at the ends, ridged with a high broad ridge, or rounded and slightly grooved on the back, about |' long. A tree, 2o°-30° high, with a short trunk occasionally 4'-o' in diameter, covered with smooth light gray bark, numerous erect branches forming an oblong open very irregular head, and stout slightly zigzag branchlets coated when they first appear with long matted pale hairs, light red-brown and lustrous, marked by small pale len- ticels and pubescent at the end of their first season, becoming dull red or orange- brown the following year, and armed with stout straight or curved bright red-brown shining spines 1^-2' long. Distribution. Steep banks of the gorge of the Genesee River at Rochester, and banks of the Niagara River, Niagara Falls, New York; common. 83. Crataegus delecta, Sarg., n, sp. Leaves broadly ovate, acute or acuminate at the apex, full and rounded or broadly cuneate at the entire base, sharply often doubly serrate above, with straight gland- ular teeth, and divided usually only above the middle into numerous short acuminate lateral lobes, when they unfold tinged with red and covered with glistening white 452 TREES OF NORTH AMERICA hairs more abundant below than above, nearly half grown when the flowers open during the first half of May and then roughened on the upper surface by short white hairs and glabrous or sparingly villose on the midribs and veins below, with scattered hairs sometimes persistent throughout the season, and at maturity membranaceous, liglit yellow-green, lustrous and glabrous above, paler below, 1^-2' long and broad, with stout yellow midribs and C or 7 pairs of slender primary veins arching obliquely to the points of the lobes, turning purplish in the autumn before falling; their petioles slender, covered at first with matted pale hairs, becoming glabrous, slightly glandu- lar, often tinged with red below the middle, f'-l' long; stipules lanceolate to linear, glandular, with stipitate dark red glands tinged with red, caducous; on vigorous shoots sometimes long-pointed at the apex and slightly cordate at the base, more deeply lobed and more coarsely serrate, and often 3'-4' long and broad. Flowers I'-l' in diameter, on long slender slightly hairy pedicels; in broad villose 10-15- flowered sparingly villose corymbs, with glandular caducous bracts and bractlets; calyx- tube broadly obconic, villose or nearly glabrous, the lobes acuminate, coarsely glandular-serrate; glabrous on the outer and villose on the inner surface; stamens 5- 10, usually 5; anthers dark rose color; styles 3-5, usually 5. Fruit ripening from the first to the middle of September and soon falling, on stout glabrous pedicels, in drooping few-fruited clusters, globose to slightly obovate, bright red or scarlet, becoming purple when fully ripe, |'— |' long, f'-f wide; calyx prominent, with erect and incurved coarsely serrate lobes; flesh thick, yellow, juicy, mildly acid and edible; nutlets 3-5, usually 5, narrowed and acute at the ends, rounded and very irregularly ridged on the back, \'-^^ long. A tree, sometimes 30° high, with a trunk rarely 1° in diameter and 6°-9° long, covered by light gray slightly fissured smooth bark, spreading or ascending branches forming an oblong open head, and slender branchlets at first slightly villose, becom- ing glabrous, dull red, and ultimately gray or olive-gray, and armed with stout nearly straight spines much thickened below the middle, dark chestnut-brown and lustrous, becoming dull brown or gray, and usually l'-2' long. Distribution. Pastures, open woods or their borders; northeastern Illinois, Wauconda, Fort Sheridan, Deerfield, Lake Forest, Lockport {E. J. Hill). ROSACEA 453 84. Crataegus sertata, Sarg. Leaves oblong-ovate, acuminate, rounded, truncate, subcordate or rarely cuneate at the broad base, finely and often doubly serrate, with straight gland-tipped teeth, and deeply divided into 5 or 6 pairs of wide acuminate lobes, when they unfold coated above with short pale hairs and villose below on the midribs and veins, about half grown and villose when the flowers open during the first half of May, and at maturity membranaceous, dark yellow-green and scabrate on the upper surface, pale yellow-green and glabrous on the lower surface, 2^-3' long, l^'-2' wide, with thin yellow midribs and slender primary veins arching obliquely to the points of the lobes; their petioles slender, slightly grooved, villose early in the season, ultimately glabrous, sparingly glandular, l^'-3' long. Flowers f '-1' in diameter, on slender pedicels, in broad 10-lo-fiowered compound densely villose corymbs, with linear to linear-obovate glandular large and conspicuous caducous bracts and bractlets; calyx- tube broadly obconic, glabrous above, villose below, the lobes abruptly narrowed from the base, broad, acuminate, tipped with small red glands, coarsely glandular- serrate, glabrate on the outer, pubescent on the inner surface; stamens 5-10, usually 5; anthers pale rose color; styles 3-5, surrounded at the base by tufts of pale hairs. Fruit ripening about the middle of September and soon falling, on slender villose or pubescent pedicels, in drooping many-fruited clusters, subglobose to slightly obo- vate, full and rounded at the ends, bright red and lustrous, becoming darker or crimson when fully ripe, marked by occasional large pale dots, about ^' long and wide; calyx prominent, with enlarged mostly erect incurved serrate lobes; flesh thin, yellow, aromatic, pleasantly acid; nutlets 3-5, usually 4, thin, narrow and acute at the ends, slightly ridged on the back, with a wide or narrow ridge, -|' long. A tree, 10°-20° high, with a trunk 6'-8' in diameter, and often 4°-5° long, covered with close dark gray bark separating into long narrow thin plate-like scales, stout spreading branches forming a handsome open head, and slender nearly straight branchlets thickly coated when they first appear with matted pale hairs, light brown and lustrous at the end of their first season, and dark gray-brown the following year, and unarmed or armed with stout nearly straight or curved spines l'-2^' lo"g- Distribution. Open woods and pastures in rich moist soil; northeastern Illinois, Barrington, Mokena, Glendon Park, and Lake Zurich. 454 TREES OF NORTH AMERICA 85. Crataegus Earnest, Sarg., n. sp. Leaves obloug-ovate, acute or acuminate, concave-cuueate or rounded at the entire or glandular base, sharply often doubly serrate above, with straight glandular teeth, and divided into numerous short acute lateral lobes, about half grown when the flowers open the middle of May, and then membranaceous, light yellow-green and roughened above by short rigid white hairs and pale and glabrous below with the exception of a few hairs on the midribs and slender primary veins arching to the points of the lobes, and at maturity subcoriaceous, glabrous, dark rather dull green and smooth above, pale yellow-green below, 3'-3^' long, 2'-2^' wide; their petioles slender, wing-margined above, villose at first, becoming glabrous, I'-l^' long; on vigorous shoots usually rounded or truncate at the broad base, lyore deeply lobed, often 3^ '-4' long and 3^ wide. FloTvers about |' in diameter, on slender slightly hairy pedicels, in crowded compact 5-25, usually 15-18-flowered sparingly villose compound corymbs, with linear obovate coarsely glandular reddish bracts and bract- lets, mostly deciduous before the flowers open; calyx narrowly obconic, glabrous, the lobes slender, elongated, glandular, with large bright red stipitate glands, glabrous on the outer, slightly villose on the inner surface; stamens 5-10, usually 5-8; anthers deep rose-purple; styles 4 or 5, surrounded at the base by a narrow ring of pale pubescence. Fruit ripening early in September and soon falling, on stout glabrous pedicels, in large many-fruited drooping clusters, oblong to slightly ovate, full and rounded at the ends, bright cherry red, lustrous, pruinose, marked by few large dark dots, f -f ' long, about ^' wide ; calyx only slightly enlarged, the lobes erect and incurved, coarsely serrate, dark red on the upper side below the middle, their tips deciduous from the ripe fruit; flesh thick, pale yellow, juicy; nutlets 4 or 5, narrowed at the ends, irregularly ridged, often with a high broad ridge, and sometimes grooved on the back, about ^' long. A tree, occasionally 20° high, with a trunk a foot in diameter, ascending branches forming a narrow open head, and stout glabrous branchlets bright reddish brown and rather lustrous during their first season, becoming light gray slightly tinged with red in their second year, and armed with stout straight or slightly curved spines I'-ll' long; or occasionally shrubby, with a short trunk divided near the ground into several spreading stems. ROSACEA 455 Distribution. Rich moist ground, Stratford, Connecticut (E. H. Eames); Anso- nia, Connecticut (E. B. Harger). IX. DILATAT^ffi. Flowers in broad 6-12-flowered corymbs. Leaves broadly ovate ; fruit bright scarlet. 86. C. dilatata (A) Leaves nearly orbicular to oval ; fruit dull red, blotched with green or orange-red. 87. C. suborbiculata (A). Leaves ovate to slightly obovate ; fruit crimson, pruinose. 88. C. Hudsonica (A). Flowers in very compact 5-7-flowered corymbs ; leaves broadly ovate ; fruit usually broader than high, much flattened at the ends, dark crimson, very lustrous. 89. C. coccinioides (A). 86. Crataegus dilatata, Sarg. Leaves broadly ovate, acute, truncate, cordate, or slightly rounded at the broad base, coarsely and generally doubly and irregularly serrate above, with straight teeth tipped with large dark glands, unequally lobed, usually with 2 or 3 pairs of acute or acuminate lateral lobes, about one third grown when the flowers open at the end of May, and then light yellow-green, conspicuously plicate, roughened on the upper surface with short stiff white hairs and glabrous on the lower surface, and at maturity smooth and glabrous, dark green above, pale below, 2'-2i' long and almost as wide as long, with slender midribs and 4 or 5 pairs of thin primary veins ; their petioles slender, somewhat glandular, at first villose, soon glabrous, often dark red toward the base after midsummer, l'-2' long; on vigorous shoots often 4:'-5' long and frequently rather broader than long, their stipules foliaceous, lunate, and often ^ in length. Flowers V-l\' in diameter, on slender elongated hairy pedicels, in broad, loose, usually 8-12-flowered slightly villose corymbs, with lanceolate bracts and bractlets glandular like the inner bud-scales, with dark red glands; calyx-tube broadly obconic, covered toward the base with matted pale hairs, nearly glabrous, the lobes broad, acuminate, coarsely glandular, with large scattered red glands, glabrous on the outer and generally slightly villose on the inner surface; stamens 20; anthers large, rose color; styles usually 5, surrounded at the base by small tufts of white hairs. Fruit 456 TREES OF NORTH AMERICA ripening and falling early in September, on slender pedicels, in many-fruited drooping clusters, subglobose, bright scarlet, marked by numerous small dark dots, about 4' in diameter; the calyx much enlarged, with spreading coarsely serrate lobes bright red on the upper side toward the base; flesh thin, sweet and yellow; nutlets 5, thin, rounded, and prominently ridged on the back, about ^ long. A tree, occasionally 20° high, with a tall straight trunk covered with light gray- brown scaly bark, branches spreading into a wide round-topped symmetrical head, and slender glabrous slightly zigzag branchlets armed with few stout straight light brown shining spines l'-2' long. Distribution. Low borders of salt marshes and estuaries, Ipswich to Somer- set, Massachusetts, and on the shores of Mt. Hope Bay at Tiverton, Rhode Island. 87. Crataegus suborbiculata, Sarg. Leaves nearly orbicular to oval or rarely to oblong, short-pointed at the apex, full and rounded or broadly cuneate at the entire base, sharply and doubly serrate above, with slender straight or incurved glandular teeth, and often divided above the middle into 3 or 4 pairs of short acute lobes, when they unfold pale yellow- green, and somewhat villose on the upper surface toward the base and below in the axils of the principal veins, about one third grown when the flowers open during the first week of June, and at maturity thin but firm in texture, dull dark green above, paler below, usually about 1^' long and broad, with slender midribs and 4 or 5 pairs of thin primary veins; their petioles slender, slightly glandular, more or less winged above, f'-l' long; on vigorous shoots nearly orbicular to short-oval, more coarsely serrate and more deeply lobed, and frequently 3' long and broad, their petioles often broadly winged and conspicuously glandular. Flo"wers |' in diameter, on short stout pedicels, in compact 6-12-flowered glabrous compound corymbs; calyx broadly obconic, the lobes gradually narrowed from broad bases, elongated, acuminate, entire or occasionally obscurely denticulate; stamens 20; anthers small, rose color; styles 5, surrounded at the base by a broad ring of hoary tomentum. Fruit falling in October without becoming mellow, on short rigid pedicels, in few-fruited erect clus- ters, subglobose, often rather longer than broad, about |' in diameter, dull red more or less blotched with green, or often wholly green on one face, or scarlet in one ROSACEiE 457 form; calyx enlarged, prominent, with a broad deep cavity and nearly entire wide- spreading lobes; flesh yellow, thin, dry and hard; nutlets 5, broad and thick, nar- rower and rounded at the ends, obscurely and unequally grooved on the back, about T long- A tree, rarely more than 15°-20° high, with a well-developed trunk 5'-6' in diam- eter, stout spreading branches forming a broad low flat-topped head, and branch- lets armed with thick straight or slightly curved bright chestnut-brown shining spines l'-2' in length. Distribution. Low limestone ridges opposite Lachine near the south bank of the St. Lawrence River and on the Island of Montreal, Province of Quebec. 88. Crataegus Hudsonica, Sarg., n. sp. Leaves ovate or slightly obovate, acute, gradually and abruptly narrowed and mostly concave-cuneate at the entire base, sharply and often doubly serrate above, with straight or incurved glandular teeth, and frequently slightly divided above the middle into short acute lobes, nearly fully grown when the flowers open at the end of May, and then thin, light yellow-green, smooth and glabrous above with the excep- tion of a few short white scattered hairs along the midribs, and pale and glabrous below, and at maturity thin but firm in texture, glabrous, 2'-2i' long, li'-l|' wide, with slender yellow midribs and o or 6 pairs of thin primary veins extending obliquely to the points of the lobes; their petioles slender, wing-margined above, glandular, at first slightly hairy, becoming glabrous and rose color toward the base, f'-l' long; on vigorous shoots broadly ovate to suborbicular, full and rounded or broadly cuneate at the wide base, deeply divided into broad lateral lobes, and 2'-3' long and broad. Flowers about f in diameter, on long slender pedicels, in broad usually 10-12-flow- ered compound glabrous corymbs; calyx-tube narrowly obconic, glabrous, the lobes gradually narrowed from broad bases, acuminate, glandular-serrate often only below the middle, glabrous on the outer, slightly hairy on the inner surface; stamens 20; anthers rose color; styles 3-5. Fruit ripening early in September, in few-fruited drooping clusters, subglobose, crimson, pruinose, marked by numerous pale dots, about I' in diameter; calyx enlarged, with a deep broad cavity, and closely appressed serrate lobes villose on the upper side; flesh thick, yellow, dry and mealy; nutlets 458 TREES OF NORTH AMERICA 3-5, full and rounded at the base and narrowed and rounded at the apex, rounded and sometimes ridged on the back, with a high rounded ridge, about y^' long. A tree, sometimes 20° high, witli a tall trunk 8'-10' in diameter, covered with pale scaly bark, heavy ascending and spreading branches forming a broad open head, stout ascending glabrous branchlets dark orange color when they first appear and light orange-brown and lustrons during their first winter, and armed with numerous slender straight or slightly curved bright red-brown shining spines l^'-2' long; some- times a broad bush, with numerous stout spreading stems. Distribution. Rolling hills in the valley of the Hudson River, near Albany, New York (C. H. Peck). 89. Crataegus coccinioides, Ashe. Leaves broadly ovate, acute, full and rounded or truncate at the base, sharply and often doubly serrate, with straight glandular teeth, and divided above the middle r'^.57^ into short acute lobes, as they unfold conspicuously plicate, very lustrous, yellow- green, and villose on the lower side of the midribs, with a few short pale hairs usually persistent during the season, about half grown when the flowers open early in May, and at maturity thin but firm in texture, rather rigid, dull dark green and smooth on the upper surface, pale on the lower surface, 2^'-3' long, with thin pale yellow midribs deeply impressed above and often bright red toward the basej after midsummer, and slender primary veins arching to the points of the lobes, turn*-' ing late in October gradually bright orange and scarlet; their petioles glandular on the upper side, with minute-stalked dark red glands, at first villose, soon glabrous, often bright red or pink toward the base, ^'-V long; on vigorous shoots more or less cordate at the base and usually 3^'-4' long and broad ; their stipules lunate, coarsely glandular-serrate, foliaceous, and \'-\' long. Flowers |' in diameter, in very com- pact 5-7-flowered glabrous or slightly villose corymbs, with coarsely serrate oblong- obovate acute bracts and bractlets, conspicuously glandular, like the inner bud-scales,| with large bright red glands; calyx-tube broadly obconic, glabrous, the lobes gradu- ally narrowed from broad bases, acute and coarsely glandular-serrate; stamens 20;| anthers large, rose color; styles 5, surrounded at the base by a ring of pale tomen-| turn. Fruit ripening early in October and falling gradually during a month or six! ROSACEA 459 weeks, on stout pedicels, in few-fruited compact erect clusters, subglobose, much flattened at the ends, often obscurely angled, dark crimson, very lustrous, marked by numerous large pale dots, |' long, -|' broad ; calyx much enlarged and conspicuous, with spreading or erect lobes bright red on the upper side near the base; flesh thick, firm, subacid, more or less deeply tinged with red; nutlets 5, comparatively small, light-colored, narrowed at the ends, acute at the apex, rounded at the base, rounded and slightly ridged on the back, about ^' long. A tree, sometimes 20° high, with a stem 8'-10' in diameter, stout spreading light gray branches forming a broad handsome head, and stout nearly straight glabrous bright chestnut-brown very lustrous branchlets armed with thick dark reddish purple shining spines l^'-2' long. Distribution. Dry woods in the neighborhood of St. Louis, Missouri, to eastern Kansas. X. COCCINEiE. Stamens 10 ; leaves coriaceous. Leaves elliptical or obovate ; fruit subglobose, dark crimson ; anthers pale yellow. 90. C. coccinea (A). Leaves elliptical or ovate ; fruit short-oblong- to oblong-obovate, brig-ht carmine red ; anthers rose color. 91. C. Jonesae (A). Stamens 20 ; leaves subcoriaceous, rhomboidal to oblong-obovate ; fruit short-oblong- to sub- globose, dark dull red or rusty orange-red ; anthers pale yellow. 92. C. Margaretta (A, C). 90. Crataegus coccinea, L. Scarlet Haw. Leaves elliptical or obovate, acute or acuminate, gradually narrowed from above the middle to the cuneate and entire base, finely and often doubly serrate above, with incurved or straight teeth tipped with minute dark glands, and divided above the middle into several short acute lateral lobes, about half grown when the flowers open at the end of May, and then membranaceous, light yellow-green, covered on the upper surface with soft pale hairs, and pubescent along the under side of the thin midribs and 4 or 5 pairs of erect primary veins extending to the points of the lobes, and at maturity coriaceous, dark green, smooth and very lustrous on the upper sur- face, paler and rarely pilose on the veins below, 1^-2' long, I'-l^' wide; their petioles 460 TREES OF NORTH AMERICA slender, glandular, slightly winged at the apex, at first villose, usually becoming glabrous, often dark red toward the base, |'-1' long; on vigorous shoots oblong-ovate, oval or often nearly orbicular, more deeply lobed and frequently 2^'-3' long. Flo"wers -^'-f ' in diameter, on slender pedicels, in broad loose compound many- llowered villose or tomentose corymbs; calyx-tube broadly obconic, tomentose or villose, the lobes gradually narrowed from broad bases, acute, coarsely glandular- serrate, glabrous or villose, often bright red toward the apex; stamens 10; anthers small, pale yellow; styles 3 or 4. Fruit ripening and falling late in October, on short stout pedicels, in drooping many-fruited pilose clusters, subglobose but occa- sionally rather longer than broad, dark crimson, marked by scattered dark dots about ^' in diameter; calyx enlarged, conspicuous, the lobes bright red on the upper side, toward the base, wide-spreading or erect; flesh thin, yellow, dry and sweet; nutlets 3 or 4, full and rounded at the ends, prominently ridged on the back, with a high grooved ridge, about \' long. A bushy tree, occasionally 20° high, with a short trunk 8'-10' in diameter, cov- ered with dark red-brown scaly bark, stout ascending branches forming a broad round-topped symmetrical head, slender branchlets light green and covered with long matted pale hairs when they first appear, soon becoming glabrous, bright red-brown and lustrous during their first year, and ultimately ashy gray, and armed with many stout straight or slightly curved chestnut-brown shining spines I'-l^' long. Distribution. Slopes of low hills and the high banks of salt marshes usually in rich well drained soil; Newfoundland to Connecticut, usually in the neighborhood of the sea, and through the valley of the St. Lawrence River to western Quebec. A form, var. rotundifolia, Sarg., with glabrous young branchlets, leaves, and corymbs, is a common New England shrub ranging southward to eastern Pennsylvania. 91. Crataegus Jonesae, Sarg. Leaves elliptical to ovate, acute, gradually narrowed or broadly cuneate at the entire base, coarsely doubly serrate above, with spreading or incurved teeth tipped with deciduous dark red glands, and usually divided above the middle into 2 or 3 pairs of short acute or acuminate lobes, more than half grown when the flowers open during the first week of June, and then membranaceous and coated with soft pale ROSACEA 461 hairs most abundant on the under side of the midribs and principal veins, and at maturity thick and coriaceous, dark green and lustrous on the upper surface, pale and puberulous on the lower surface, 3'-4' long and 2'-3' broad, with stout midribs, 4-6 pairs of primary veins and conspicuous secondary veinlets; their petioles stout, more or less winged toward the apex, villose, ultimately glabrous, tinged with red below the middle, l^'-2' long, after midsummer often twisted at the base, bringing the lower surface of the leaf to the light; on vigorous shoots usually more coarsely serrate and much more deeply lobed, with broadly winged petioles, and falcate coarsely glandular-serrate stipules sometimes 1' in length. Flowers V in diameter, on long slender pedicels, in broad loose lax compound many-flowered tomentose corymbs; calyx-tube narrowly obconic and tomentose, the lobes abruptly narrowed from broad bases, elongated, acute, entire, villose; stamens 10; anthers large, rose color; styles 2, or generally 3, surrounded at the base by a narrow ring of pale tomentum. Fruit, ripening usually early in October, on slender elongated pedicels, in broad many-fruited drooping glabrous or puberulous clusters, short-oblong to oblong-obovate, full and rounded at the ends, bright carmine-red, marked by occa- sional large dots, f'-l' long, |' broad; calyx conspicuous, with enlarged and elon- gated closely appressed lobes; flesh thick, yellow, sweet and mealy; nutlets 3 or rarely 2, thick, narrowed and acute at the base, full and rounded at the apex, rounded and ridged on the back, with a high broad ridge, about ^"g' long. A tree, sometimes 20° high, with a tall trunk often a foot in diameter, covered with dark brown scaly bark, ascending or spreading branches forming a broad open irregular head, and stout branchlets at first tomentose, becoming orange-brown, glabrous, and very lustrous during their first season and light gray the following year, and armed with stout straight or curved chestnut-brown shining spines 2'-3' long and usually pointed toward the base of the branch. Distribution. Rocky shores of sounds and bays* southeastern Maine, Islesboro, and Belfast Bay to the island of Mount Desert. 92. Crataegus Margaretta, Ashe. Leaves broadly rhomboidal, oblong-obovate to rarely ovate, acute or rounded at the apex, gradually narrowed and usually entire below, coarsely often doubly crenately- serrate above, with mostly glandless teeth, and divided above the middle or frequently only at the apex into short broad rounded or acute lobes, membranaceous when the flowers open in May, and roughened above by short pale hairs and glabrous below, and at maturity firm and rather leathery in texture, or subcoriaceous, glabrous, smooth, dark green, and somewhat lustrous on the upper surface, pale on the lower surface, I'-l^' long, 1' wide, with yellow midribs and 3-5 pairs of primary veins extending very obliquely to the points of the lobes; their petioles slender, often slightly winged toward the apex, glandular at first, with minute dark red caducous glands, V~l' long; on vigorous shoots broadly ovate or semiorbicular, usually more deeply and more generally lobed, often 3' long and 2'-3' wide. Flowers about f in diame- ter, on slender elongated pedicels, in 3-12-flowered compound thin-branched slightly villose corymbs; calyx-tube narrowly obconic, slightly villose toward the base, or glabrous, the lobes gradually narrowed from below, acuminate or short-pointed at the apex, finely and irregularly glandular-serrate, glabrous, or villose on the inner surface; stamens usually 20; anthers small, light yellow; styles 2 or 3, surrounded at the base by a narrow ring of pale tomentum, and villose below the middle, with occasional long spreading hairs. Fruit ripening and falling at the end of Septem- 462 TREES OF NORTH AMERICA ber, in few-fruited drooping clusters, sliort-oblong, full and rounded at the ends, or subglobose and flattened at the ends, dull dark red or rusty orange-i-ed marked by fiw2>Jl occasional dark dots, and about ^' long; calyx only slightly enlarged, the lobes spread- ing or erect and frequently deciduous before the fruit ripens; flesh thin, yellow, dry and mealy; nutlets 2 or 3, broad and rounded at the base, acute at the apex, con- spicuously grooved and ridged on the back, with a broad rounded ridge, about ^' long. A tree, occasionally 25° high, with a straight trunk 4'-6' in diameter, covered with thin dark gray-brown bark, thin rather erect branches forming a narrow open head, and slender branchlets, orange-green, glabrous or sometimes pubescent when they first appear, becoming bright chestnut-brown and lustrous, and ashy gray or gray tinged with red during their second year, and armed with thin straight or slightly curved bright chestnut-brown spines f'-l^' long. Distribution. Banks of streams and open hillsides; Ontario, central Michigan, central Iowa, Missouri from Webster in the neighborhood of St. Louis to Springfield, and in middle Tennessee. XI. INTRICATiE. Stamens 10 ; leaves broadly ovate to oval. Fruit depressed-globose, yellow-green flushed with russet red ; anthers pale yellow ; calyx- lobes without stalked glands. 93. C. Boyiitoiii (A, C). Fruit subglobose, red or russet-red ; anthers pale rose color ; calyx-lobes with stalked glands. 94. C. Buckley i (A). Stamens 20. Leaves oval to ovate or oblong-obovate ; fruit short-oblong, dull red, often with a bright russet face ; stamens usually 5-15 ; anthers small, pale yellow. 95. C. venusta (C). Leaves oblong-ovate to elliptical or obovate; fruit subglobose to short-oblong, yellow or orange-yellow, more or less flushed with red ; anthers large, purple. 96. C. Sargenti (C). 93. Crataegus Boyntoni, Beadl. Leaves broadly ovate to oval, acute, full and rounded or cuneate at the entire glandular base, sharply and often doubly serrate above, with glandular teeth, and ROSACEA 463 frequently divided into 2 or 3 pairs of short broad acute lateral lobes, when they unfold deep bronze-red, slightly glandular and viscid, nearly fully grown when the flowers open early in May, and then membranaceous and glabrous or occasionally slightly pilose, and at maturity thick and firm, glabrous, yellow-green on the upper surface, pale on the lower surface, l'-2^' long, l'-2' wide, with thin pale yellow mid- ribs and 4-7 pairs of slender veins ; their petioles stout, glandular often to the base, with bright red glands, slightly winged above, usually about ^' long; on vigorous shoots often as broad as long, truncate or cordate at the base, and more coarsely dentate and more deeply lobed. Flo"wers about ^' in diameter, on short slender pedicels, in compact 4-10-flowered compound corymbs; calyx-tube broadly obconic, the lobes abruptly narrowed from broad bases, acute or rounded at the apex, entire or obscurely and irregularly glandular-serrate above the middle; stamens 10; anthers large, pale yellow; styles 3-5, surrounded at the base by a broad thick ring of hoary tomentum. Fruit ripening and falling early in October, on short stout pedicels, in few-fruited erect clusters, depressed-globose, more or less angled, yellow-green flushed with russet-red, marked with small dark dots, usually about 1' in diameter; calyx promi- nent, the large spreading lobes often deciduous before the fruit ripens; nutlets 3-5, acute or acuminate at the apex, rounded at the narrow base, prominently ridged on the back, with a high rounded ridge, about \' long. A tree, occasionally 20° high, with a tall straight trunk 6'S' in diameter, some- times armed with long gray compound spines, stout ascending branches forming a narrow open irregularly or occasionally a round-topped head, and glabrous branchlets furnished with many thin nearly straight light chestnut-brown spines l^'-2' long; or more often a shrub, with numerous stems. Distribution. Banks of streams, the borders of fields and upland woods in the southern Appalachian foothill region from southern Virginia to northern Georgia and Alabama, southeastern Kentucky, and Tennessee, sometimes ascending to elevations of 3000° above the sea. 94. Cratsegus Buckleyi, Beadl. Leaves broadly ovate or oval, acute, rounded or subcordate, or narrowed and con- cave-cuneate at the entire base, coarsely often doubly serrate above, with straight 464 TREES OF NORTH AMERICA glandular teeth, and more or less incisely lobed, with acuminate lateral lobes, more than half grown when the flowers open about the middle of May and then pale green and glabrous with the exception of a few caducous hairs along the upper side of the base of the midribs, and at maturity thick and firm in texture, dark green above, paler below, l|'-2' long, l|'-2' wide, and on vigorous shoots sometimes wider than long; their petioles stout, conspicuously glandular above the base, wing-margined at the apex, glabrous, ^'-^' long. Flowers about |' in diameter, on slender glabrous pedicels, in compact 3-7-flowered simple corymbs, with conspicuously glandular bracts and bractlets ; calyx-tube broadly obconic, glabrous, the lobes broad, acuminate, laciniately cut toward the apex, and glandular, with stipitate glands; stamens 10; anthers pale rose color; styles 3-5, surrounded at the base by tufts of pale hairs. Fruit ripening late in September or in October, subglobose, usually angled, red or russet red, about ^' in diameter; calyx little enlarged, with spreading or reflexed lobes; flesh thin, dry and mealy; nutlets 3-5, full and rounded at the base, rounded at the slightly narrowed apex, prominently ridged on the back, with a broad grooved ridge, about ^y long. A tree, often 25° high, with a trunk 4'-7' in diameter, and sometimes 10°-12° long, and covered with gray or often dark brown scaly bark, stout spreading or ascending branches, and thick glabrous red-brown branchlets armed with thin straight shining spines 1' long, becoming much longer and branched on the trunk and large branches. Distribution. Southwestern Virginia, through western North Carolina to eastern Tennessee; usually at elevations between 2000° and 3000° above the sea; common on wooded slopes with Oaks, Hickories, and Pines. 95. Crataegus venusta, Beadl. Leaves oval to ovate or occasionally to oblong-obovate, acute, gradually or abruptly narrowed and cuneate or rounded at the entire base, finely serrate above, with usually incurved glandular teeth, and frequently slightly and irregularly divided above the middle into 1-3 pairs of short broad acute lobes, when they unfold dark bronze color, with a. few scattered pale caducous hairs on the upper surface, about half grown when the flowers open from the 20th to the end of April, and then ROSACEiE 465 yellow-green, smooth and glabrous, and at maturity thick and firm in texture, dark dull green above, pale below, 2^' long, 1^' wide, with stout midribs and 4-7 pairs of thin primary veins, late in the autumn turning, especially those on leading shoots, deep orange or scarlet; their petioles stout, glandular, more or less winged above, i'-|^' long, and in the autumn often bright red below the middle ; on vigorous shoots generally broadly ovate, full and rounded at the base, deeply lobed, with broad lobes, and often 3^' long and 3' wide. Flowers 1' in diameter, on short pedicels, in 4:-9-flowered compact corymbs, their bracts and bractlets like the inner bud-scales coarsely glandular-serrate and bright red before falling; calyx-tube broadly obconic, the lobes gradually narrowed from broad bases, acute, coarsely glandular-serrate often only below the middle; stamens 15-20, usually 15-17; anthers small, pale yellow; styles 3-5, surrounded at the base by a ring of pale hairs. Fruit ripening and falling from the 1st to the middle of October, on stout pedicels often 1' long, in few-fruited clusters, short-oblong, full and rounded at the ends, dull red, often with a bright russet face, marked by occasional large dark dots; calyx prominent, with a long tube, and spreading lobes often deciduous before the fruit ripens; flesh thick, yellow, dry and mealy; nutlets 3-5, narrowed and acute at the base, full and rounded at the apex, thick, full and rounded on the back, about i' long. A bushy tree, often 25° high, with a short trunk a foot in diameter and armed like the large branches with innumerable stout much-branched spines frequently 6' long, and stout branchlets furnished with numerous straight or slightly curved dark chestnut-brown shining spines frequently pointing toward the base of the branch and ll'_91' loner Distribution. Open Oak and Hickory woods on the dry slopes of Red Mountain in the southern part of the city of Birmingham, Alabama. 96. Crataegus Sargenti, Beadl. Leaves oblong-ovate to elliptical or rarely to ovate, acute or acuminate at the apex, gradually or abruptly cuneate or rounded at the nearly entire base, irregularly doubly serrate above, with straight or incurved glandular teeth, and usually irregu- larly divided into 3 or 4 pairs of short broad acute or acuminate lobes, nearly fully grown when the flowers open late in April, and then subcoriaceous, pale yellow- green, and villose along the midribs, with scattered pale caducous hairs, and at 466 TREES OF NORTH AMERICA maturity lustrous, dark yellow-green above, pale below, 2'-3' long, 1^-2' wide, with thin midribs and 5-7 pairs of thin light yellow veins and conspicuous reticulate vein- lets, turning in the autumn bright yellow and red; their petioles slender, glandular, more or less broadly winged toward the apex, ^'-|' long. Flowers nearly 1' in diam- eter, on long thin slightly villose pedicels, in 2-5 usually 3-flowered simple corymbs, with coarsely glandular-serrate bracts and bractlets; calyx-tube narrowly obconic, glabrous or slightly villose, the lobes foliaceous, acute, coarsely glandular-serrate above the middle; stamens 20; anthers large, purple; styles 3-5, usually 4, sur- rounded at the base by a narrow ring of pale hairs. Fruit ripening and falling about the middle of September, often only a single fruit maturing from a flower- cluster, subglobose to short-oblong, full and rounded at the ends, yellow or orange- yellow, generally more or less flushed with red, marked by occasional large dark dots, I'— I' long; calyx prominent, with an elongated tube and closely appressed lobes; flesh yellow, thin, and firm; nutlets 3-5, usually 4, rounded at the narrow ends, prominently ridged and grooved on the back, about ^' long. An intricately branched tree, rarely more than 20° high, with a tall trunk 6'-7' in diameter, stout ascending branches forming a narrow or sometimes a round flat- topped head, and glabrous branchlets armed with thin straight or slightly curved dark chestnut-brown shining spines, f '-1|^' long, or often a large shrub, with few or many stems. Distribution. Rocky woods and bluffs in the foothill region of northern Georgia, southeastern Tennessee and northeastern Alabama; very abundant in Alabama at Valley Head and on the low ridges extending southward to the neighborhood of Birm-ingham. XII. PULCHERRIMiE. Leaves oval to ovate or nearly orbicular, their lobes acute or rounded ; fruit bright red. 97. C. opima (C). Leaves ovate to oval or obovate, their lobes acute ; fruit orange-red. 98. C. Robur (C). 97. Crataegus opima, Beadl. Leaves oval to ovate or nearly orbicular, acute, gradually or abruptly narrowed and cuneate at the entire base, finely serrate above, with incurved teeth, and usually ROSACEA 467 divided above the middle into short acute, acuminate or rounded lobes, half grown when the flowers open the middle of April, and then glabrous with the exception of a few short caducous hairs along the midribs and veins, and at maturity thin but firm in texture, light green on the upper surface, pale on the lower surface, 1^^ long, 1^' wide, with slender midribs and 5 or 6 pairs of arcuate primary veins spreading to the points of the lobes; their petioles narrowly winged at the apex, usually about f long; on vigorous shoots sometimes rounded or nearly truncate at the base and 1^'- 2^' long and broad. Flowers about |' in diameter, on short slender pedicels, in compact few-flowered glabrous compound corymbs; calyx-tube broadly obconic, glabrous, the lobes gradually narrowed from broad bases, acute, entire or sparingly glandular-serrate, tipped with dark red glands, glabrous on the outer, puberulous on the inner surface; stamens 20; anthers purple; styles 3-5, surrounded at the base by a narrow ring of snowy white tomentura. Fruit ripening about the 1st of October and then remaining on the branches for several weeks, on short stout pedicels, in compact few-fruited erect or drooping clusters, subglobose, often rather longer than wide, bright red, about y in diameter; calyx prominent, with a well-developed tube and much enlarged closely appressed lobes often deciduous with the tube before the fruit becomes entirely ripe; flesh thin, yellow, dry and mealy; nutlets 3-5, thin, slightly grooved and ridged on the back, ^' long. A tree, 20°-25° high, with a tall, slender often spiny trunk covered with ashy gray bark nearly black at the base of old trees, spreading and ascending branches forming a rounded or oval usually open head, and thin nearly straight bright red- brown glabrous branchlets becoming gray tinged with red or brown in their second season, and armed with thin nearly straight bright chestnut-brown lustrous spines, I'-ll'long. Distribution. Open woods in clay soil in the neighborhood of Greenville, Alabama; common. 98. Crataegus Robur, Beadl. Leaves ovate, oval or obovate, acute or acuminate, entire or sparingly glandular below, finely serrate above, with incurved glandular teeth, and incisely lobed above the middle, with numerous short acute lobes, nearly fully grown when the flowers open at the end of March, and then membranaceous and dark yellow-green and lustrous, 468 TREES OF NORTH AMERICA and at maturity thin but firm in texture, yellow-green, l^'-2' long, I'-l^' wide, with slender yellow midribs and thin primary veins extending very obliquely to the points M ^m^^ of the lobes, turning in the autumn orange, yellow, or brown; their petioles slender, slightly wing-margined toward the apex, sparingly glandular, ^'-V long; on vigor- ous shoots broadly ovate, cuneate or nearly truncate at the wide base, deeply divided into broad lateral lobes, often 2'-3' long arud broad, with stout broadly winged peti- oles frequently V long. Flowers l^'-l^' in diameter, on long slender pedicels, in 5-10-flowered compound glabrous corymbs, with large conspicuously glandular bracts and bractlets ; calyx-tube narrowly obconic, glabrous, the lobes gradually narrowed from broad bases, glabrous, entire or sparingly serrate; stamens 20; anthers pale purple ; styles 3-5, surrounded at the base by a narrow ring of pale hairs. Fruit ripening in September and October, on elongated, slender pedicels, in few-fruited drooping clusters, subglobose, orange-red, about ^' in diameter ; calyx-lobes decidu- ous before the maturity of the fruit, leaving a narrow ring round the shallow cavity; flesh thin and firm ; nutlets 3-5, full and rounded at the ends, barely grooved on the rounded back, ^^g' long and nearly as broad. A tree, 20°-25° high, with a trunk 4'-6' in diameter, covered with gray or brown scaly bark, spreading or ascending branches, and slender red-brown branchlets un- armed or armed with stout spines f '-1' long ; more often a large much-branched shrub, with one or more stems. Distribution. Woods and borders of fields, northwestern Florida ; common in the neighborhood of Tallahassee. XIII. BRACTEAT^. Leaves oval to broadly obovate ; corymbs many -flowered ; stamens 10-20, usually 20 ; fruit bright red or orange-red. 99. C. Harbisoni (C). Leaves broadly ovate or rarely obovate ; corymbs 3-10-flowered ; stamens 20 ; fruit bright red. 100. C. Ashei (C). 99. Crataegus Harbisoni, Beadl. Leaves oval or broadly obovate, acute at the apex, cuneate or full and rounded at the entire base, and coarsely serrate above, with straight glandular teeth, when ROSACEA 469 they unfold roughened above by stout, rigid pale hairs, and soft and pubescent below, nearly' fully grown early iu May when the flowers open, and then thin, dark yellow- green above and pale below, and at maturity thick and firm ; dark green, lustrous, and scabrate on the upper surface, pale on the lower surface, 2'-2l' long and I'-l^' wide, with stout midribs and primary veins deeply impressed on the upper side of the leaf, and conspicuous reticulate veinlets; their petioles stout, villose, more or less winged above, \'-^' long; and furnished like the base of the leaf-blade with numerous large stipitate dark glands; on vigorous shoots broadly ovate, cuneate and decurrent on their stouter petioles, 3'-4' long and 2i'-3' wide, with lunate coarsely glandular-dentate stipules frequently ^ long. Flo'wers ^' in diameter, in broad loose compound villose usually 10-12-fiowered corymbs, with broad acute conspicuous glandular-serrate bracts and bractlets; calyx-tube broadly obconic, densely villose at the base and glabrous or pubescent above, the lobes foliaceous, elongated, gradually narrowed from broad bases, acute, bright green, more or less hairy, coarsely glandular-serrate, with large stipitate dark red glands; stamens 10-20, usually 20; anthers large, light yellow; styles 3-5. Frnit ripening and falling early in October, subglobose, often rather longer than broad, bright red or orange-red, marked by numerous large dark dots; calyx enlarged, with spreading glandular lobes often deciduous before the fruit ripens; flesh yellow, thick, dry and mealy; nutlets 3-5, narrowed and rounded at the ends, sometimes prominently ridged on the back, ^' long. A tree, sometimes 25° high, with a trunk 10'-12' in diameter, covered with light gray or gray-brown bark and often armed with straight or much-branched spines, wide-spreading light gray or reddish branches forming a rather open symmetrical head, and slender branchlets coated when they first appear with long spreading white hairs, pubescent or glabrous and light red-brown or orange-brown during their first season, becoming dark or light gray the following year, and furnished with numerous usually stout straight dark reddish brown shining spines 1^-2' long. Distribution. Dry limestone hills and ridges ; ^Yest Nashville, Tennessee; common. 100. Crataegus Ashei, Beadl. Leaves broadly ovate or occasionally obovate, acute and generally short-pointed at the apex, gradually or abruptly narrowed and cuneate and usually entire at the base. 470 TREES OF NORTH AMERICA coarsely and occasionally doubly serrate above, with straight or incurved teeth tipped with small dark glands, when they unfold roughened on the upper surface with short pale hairs and pubescent below, nearly fully grown and membranaceous when the flowers open early in May, and at maturity thin but firm in texture, dark green, lus- trous and scabrate on the upper surface, pale and puberulous on the lower surface along the slender midribs and primary veins, about 2' long and 1^' wide; their petioles stout, broadly winged above, glandular, pubescent at first but ultimately nearly glabrous, about Y long; on vigorous shoots usually broadly oval or nearly orbicular, rounded or short-pointed at the apex, 2^'-3' long and 2'-2^' wide. Flowers |' in diameter, on slender hairy pedicels, in 3-10-flowered simple or compound villose corymbs, with broad conspicuous glandular bracts and bractlets; calyx-tube broadly obconic, thickly coated with long matted reflexed white hairs, the lobes foliaceous, broad, acute, nearly glabrous on the outer surface, villose on the inner surface, glandu- lar, with small stout stipitate glands; stamens 20; anthers small, yellow; styles 3-5, surrounded at the base by a narrow ring of pale hairs. Fruit ripening and falling late in September or early in October, on stout villose or glabrous pedicels, in few- fruited clusters, globose or rather longer than broad, bright red, marked by large scattered dots, more or less villose toward the ends, about 1' in diameter; calyx con- spicuous, with elongated coarsely glandular-serrate lobes, erect, incurved or reflexed; flesh thick and yellow; nutlets 3-5, thin, narrowed and acute at the ends, deeply grooved and ridged on the back, i' long. A tree, rarely more than 20° high, with a slender trunk covered with smooth light gray or red-brown bark becoming fissured and scaly on old individuals, stout ascend- ing branches forming a pyramidal or oval head, and slender branchlets coated at first with long pale matted reflexed hairs, soon becoming nearly glabrous, lustrous, orange- brown or reddish brown, and light gray or gray tinged with red during their second season, and armed with straight or slightly curved thin dark red-brown shining spines I'-l^' long. Distribution. Abandoned fields, and woods; growing usually on clay soils near Montgomery, Alabama. i ROSACEA 471 XrV. FLAViE. Stamens 20. Anthers purple or pink. Leaves elliptical to broadly obovate, yellow-green ; fruit dark orange-brown. 101. C. flava (C). Leaves ovate to nearly orbicular, bright green ; fruit globose to depressed-globose, bright red. 102. C. consanguinea (C). Leaves obovate, bright green ; fruit oval to short-oblong, orange-red ; anthers pink. 103. C. tristis (C). Leaves ovate to obovate or orbicular, bright yellow-green ; fruit pear-shaped, dark orange color, with a red cheek. 104. C. visenda (C). Leaves obovate or ovate, dark green ; fruit subglobose to short-oblong, red or orange- red. 105. C. ignava (C). Anthers yellow. {Doubtful in 109 and 114') Leaves yellow-green. Leaves obovate-cuneate, often 3-lobed at the apex ; fruit pear-shaped to subglobose, bright orange-red and lustrous ; corymbs tomentose. 106. C. Floridana (C). Leaves obovate ; fruit subglobose to short-oblong, dull brownish yellow ; corymbs glabrous. 107. C. lacrimata (C). Leaves obovate, rounded or abruptly short-pointed at the broad apex ; fruit globose to short-oblong, bright orange-red. 108. C. Ravenelii (C). Leaves obovate to obovate-cuneiform ; fruit globose, bright red. 109. C. senta (A). Leaves obovate, subcoriaceous ; fruit globose or depressed-globose, orange-yellow, with a red cheek. 110. C. panda (C). Leaves obovate to oblong-obovate, with entire slightly undulate margins ; fruit globose, red. 111. C. Integra (C). Leaves spathulate, subcoriaceous ; fruit pyriform, red. 112. C. recurva (C). Leaves obovate to oval or orbicular ; fruit subglobose to oval, orange-red or red and orange. 113. C. annosa (C). Leaves conspicuously blue-green, broadly ovate to orbicular ; fruit subglobose to short- oblong, light red, puberulous at the ends. 114. C. dispar (C). Stamens 10 ; anthers yellow ; leaves broadly obovate to oval or rhomboidal, dark yellow- green ; fruit subglobose, dull orang^red, often slightly vUlose at the ends. 115. C. aprica (A, C). ^Stamens 20. -^Anthers purple or pink. 101. Crataegus flava, Ait. Leaves elliptical to broadly obovate, acute or rarely rounded at the apex, grad- ually narrowed and cuneate at the glandular base, and coarsely doubly serrate above, with broad straight or incurved teeth tipped with large dark red stipitate glands, when they unfold bronze color, villose above, with short pale caducous hairs most abundant near the base of the midribs, and pubescent below on the midribs and veins, about half grown when the flowers open from the 10th to the 20th of April, and at maturity membranaceous, yellow-green, usually about 2' long and 1^' wide, with slender yellow midribs and 3 or 4 pairs of primary veins usually puberulous on the under side and only slightly impressed above; their petioles slender, glandular, winged nearly to the base, generally about \' long, more or less villose, and after midsummer often light red on the lower side; on vigorous shoots frequently 3' long and 2' wide, and sometimes broadly ovate, 3-lobed or divided into 2 or 3 pairs of lateral lobes, with petioles I'-l^' long, broadly winged and conspicuously glandular, 472 TREES OF NORTH AMERICA and foliaceous lunate or elli})tical coarsely glandular-serrate stipules. Flcwers about i|' in diameter, on short slender pedicels, in few-flowered simple or compound slightly villose compact corymbs, witli lanceolate acute coarsely glandular-serrate bracts and bractlets; calyx-tube broadly obconic and glabrous, the lobes wide, acute, usually laciniately divided, very glandular; stamens 20; anthers large, purple. Fruit ripening early in October and soon falling, in few-fruited drooping clusters, short-oblong, full and rounded at the ends, dark orange-brown, ^'-f' long, 1'-^ wide; calyx prominent, with a long narrow tube, and enlarged closely appressed lobes often deciduous before the fruit ripens; flesh thick, orange color, dry and mealy; nutlets 5, ridged and gradually narrowed and rounded at the ends, ridged and deeply grooved on the back, with a high narrow ridge, about ^' long. A tree, 15°-20° high, with a tall trunk 8'-10' in diameter, covered with thin dark brown bark tinged with red and divided into narrow rounded ridges, stout ascending branches forming an open and somewhat irregular head sometimes 20° across, and fto^M slender slightly zigzag glabrous branchlets dark green deeply tinged with red when they first appear, becoming dull red-brown or orange-brown during their first season, darker the following year, and ultimately dark gray-brown, and armed with thin nearly straight bright chestnut-brown spines f -1^' long. Distribution. Dry sandy soil on the sand hills of Summerville, west of the city of Augusta, Georgia, and at River Junction, Florida. 102. Crataegus consanguinea, Beadl. Leaves broadly ovate, nearly orbicular, occasionally oval or rhomboidal, acute and generally short-pointed at the apex, gradually narrowed and concave-cuneate or sometimes rounded at the entire base, finely and often doubly serrate, with glandular teeth, and frequently irregularly divided above the middle into short acute lobes, nearly fully grown when the flowers open at the end of March or early in April, and then very thin, blue-green, slightly villose, especially on the midribs and veins, and at maturity thin but firm in texture, bright green, glabrous with the exception of a few hairs on the imder side of the slender midribs, and thin primary veins extend- ing very obliquely toward the end of the leaf, about 1' long, f— |' wide, and on vigorous shoots 1^-2' long and wide; their petioles slender, glandular, wing-mar- ROSACEA 473 gined above, at first villose, becoming glabrous, ^'-f long. Flowers f in diameter, on slender elongated hairy pedicels, in simple 1-o-flowered corymbs, with oblanceo- late acuminate bright red caducous bracts and bractlets; calyx-tube broadly obconic, sparingly hairy, with long pale caducous hairs, the lobes gradually narrowed from broad bases, acute, glandular, with minute bright red glands, glabrous; stamens 20; anthers small, purple; styles 3-5, surrounded at the base by a narrow ring of short pale hairs. Fruit ripening and falling about the middle of September, on slen- der glabrous pedicels, often only a single fruit in a cluster developing, globose to depressed-globose, bright red, marked by small dark dots, nearly ^' in diameter; calyx prominent, with enlarged appressed lobes; flesh thin, yellow, dry and mealy; nut- lets 3-5, thick, narrowed and rounded at the base, full and rounded at the apex, ridged on the back, with a broad low rounded ridge, about -^q' long. A tree, often 20° high, with a tall trunk 6'-8' in diameter, covered with nearly black deeply furrowed bark brokens^into short thick closely appressed scales, wide- spreading often pendulous branches forming a broad symmetrical handsome head, and slender slightly zigzag branchlets covered when they first appear with pale caducous hairs, soon becoming bright red-brown and lustrous, and dull reddish brown in their second season, and armed with short nearly straight gray or chestnut- brown spines ^-f' long. Distribution. Dry upland Oak woods in western Florida from the neighborhood of Tallahassee to the Appalachicola River; abundant in the neighborhood of River Junction and at Aspalaga. 103. Crataegus tristis, Beadl. Leaves obovate, acute, acuminate, or rounded and often more or less undulate- lobed at the broad apex, gradually narrowed from above the middle and concave- cuneate at the glandular base, and serrate above, with blunt glandular teeth, about half grown when the flowers open at the end of April, and then slightly pilose on the upper and hairy on the lower surface along the thin midribs and in the axils of the slender veins extending obliquely to the points of the lobes, and at maturity thin but firm in texture, bright green and glabrous, l^'-l^' long, about ^' wide, turning in the autumn yellow, brown, and orange; their petioles slender, wing-margined above, 4T4 TREES OF NORTH AMERICA conspicuously glandular, slinrhtly puberulous, j^'— f long; on vigorous shoots oblong- obovate, often deeply and inegniarly divided into broad acute lateral lobes, and frequently l^'-2' long and nearly as broad. Flo-wers |'-f' in diameter, on slender villose pedicels, in simple 3-o-tlowered corymbs, with rose-colored and conspicuously glandular bracts and bractlcts; calyx-tube broadly obconic, hairy toward the base, with long scattered pale hairs, the lobes gradually narrowed from broad bases, acu- minate, glandular, with large dark red glands, and entire or coarsely serrate above the middle; stamens 20; anthers pink; styles 3-5. Fruit ripening and falling late in fi"^ (3S5 August or early in September, oval or short-oblong, orange-red, about ^' long, with soft flesh; calyx little enlarged, with recurved persistent lobes; nutlets 3-5, full and rounded at the base, gradually narrowed and acute at the apex, rounded and ridged on the back, with a broad low slightly grooved ridge, about y^g' long. A tree, sometimes 25° high, with a trunk 8'-10'in diameter, covered with dark sometimes nearly black deeply furrowed bark, stout p'fendulous branches forming a broad shapely handsome head, and slender branchlets hoary-tomentose at first, bright red-brown and puberulous at the end of their first season, becoming dark gray-brown, and armed with few slender straight spines l^'-l^' long; or often a large shrub. Distribution. Slopes of low hills, northwestern Georgia; common in the neigh- borhood of Rome. 104. Cratcegus visenda, Beadl. Leaves ovate, obovate, or orbicular, short-pointed and acute or occasionally broad and rounded at the apex, concave-cuneate and gradually narrowed at the mostly entire base, finely serrate above, with rounded teeth, glandular, with bright red glands, and divided above the middle into short acute lobes, nearly fully grown when the flowers open at the end of March, and then glabrous with the exception of a few short pale hairs on the two surfaces near the base of the midribs, and at maturity thin and firm in texture, bright yellow-green and lustrous above, pale below, glabrous, I'-l^ long, f'-l' wide, with slender midribs, and thin primary veins extending very obliquely to the points of the lobes, turning yellow, orange, or brown in the autumn; their petioles slender, broadly wing-margined above, conspicuously ROSACEA 475 glandular, sparingly villose at first, becoming nearly glabrous, -^'-f' long. Flo\wers about f in diameter, on short villose pedicels, in simple 3-6-flowered corymbs; calyx-tube broadly obconic, hairy near the base, with scattered pale hairs, gla- brous above, the lobes broad, acuminate, glandular-serrate, glabrous on the outer, pilose on the inner surface; stamens 20; anthers pale purple; styles 3-5, surrounded at the base by small tufts of white hairs. Fruit ripening and falling late in August and early in September, on stout pedicels, usually in 1 or 2-fruited clusters, pear- shaped, dark orange-colored, with a red cheek, ^'-|' long, nearly 1' wide; calyx enlarged, the lobes coarsely glandular-serrate, puberulous on the upper surface, closely appressed; flesh soft and yellow; nutlets 3-5, obtuse and rounded at the ends, rounded and slightly ridged on the back, about |' long. A tree, sometimes 30° high, with a trunk 10'-12' in diameter, covered with dark gray or brownish bark, crooked horizontal or ascending branches forming a broad irregular head, and stout often contorted branchlets villose at first, soon glabrous, dull reddish brown to ashy gray, and armed with slender straight spines ^'-f long. Distribution. Sandy soil near Bristol, Florida. 105. Cratsegus ignava, Beadl. Leaves obovate to ovate, acute, gradually narrowed from near the middle to the concave-cuneate glandular base, sharply often doubly serrate above, with glandular teeth, and usually divided toward the apex into short acute lobes, nearly fully grown when the flowers open at the end of April, and then membranaceous, glabrous with the exception of a few hairs along the midribs above and along the midribs and slen- der veins below, and at maturity subcoriaceous, bright green and lustrous on the upper surface, pale and still hairy on the lower surface, l^'-2' long and l'-l|' wide, turning in the autumn yellow and brown sometimes flushed with red; their petioles slender, wing-margined at the apex, glandular, j-^' long. Flowers about |^' in diameter, on slender glabrous pedicels, in 3-6-flowered simple corymbs, with lanceo- late conspicuously glandular reddish bracts and bractlets; calyx-tube broadly obconic, glabrous, the lobes abruptly narrowed from the base, wide, glabrous, glandular, with dark red stipitate glands, and often coarsely serrate above the middle; stamens 20; anthers large, purple; styles 3-5, surrounded at the base by a ring of pale hairs. Fruit ripening and falling at the end of September and early in October, on slender 476 TREES OF NORTH AMERICA erect pedicels, in few-fruited clusters, subglobose to short-obloiig, orange-red, marked by numerous pale dots, about f long; calyx enlarged and prominent, with spreading lobes often deciduous from the ripe fruit; flesh thick and soft; nutlets 3-5, rounded at the ends, prominently but irregularly ridged and grooved on the back, \' long. A tree, sometimes 10°-12° high, with a slender trunk covered with ashy gray fissured scaly bark often tinged with brown and frequently nearly black near the ground, stout ascending branches, and slender zigzag glabrous branchlets bright red- f5~^c390 brown during their first season, becoming dark gray-brown, and armed with many very slender red-brown lustrous ultimately ashy gray spines l'-l|' long. Distribution. Northeastern Alabama; common on Lookout Mountain above Valley Head, and at Collinsville and Gadsden. -H — i- Anthers yellow. 106. Crataegus Floridana, Sarg. Leaves obovate-cuneate, frequently 3-lobed at the apex, with short rounded lobes, gradually narrowed and cuneate at the entire base, finely serrate above, with straight or incurved teeth tipped with showy ultimately dark persistent glands, 3-nerved, with slender nerves, and numerous thin secondary veins and reticulate veinlets, slightly villose above as they unfold, nearly fully grown when the flowers open about the middle of March, and then light yellow-green and glabrous with the exception of a few persistent hairs along the upper side of the nerves and in their axils, and at maturity thick and firm, dark green and lustrous on the upper surface, pale on the lower surface, V-l^' long and about ^ wide; their petioles slender, glandular, more or less winged toward the apex, tomentose, becoming pubescent or glabrous, usually about ^' long; on vigorous shoots frequently 2' long, and sometimes divided by deep rounded sinuses into numerous narrow lateral lobes, their stipules lunate, foliaceous, pointed, coarsely glandular-serrate. Flowers about I' in diameter, on slender tomen- tose pedicels, in few usually 3-flowered simple compact corymbs; calyx-tube broadly obconic, coated with long matted white hairs, the lobes narrow, acuminate, glandular, with bright red stipitate glands, villose toward the base on the outer surface, and on the inner surface; stamens 20; anthers small, pale yellow; styles 4 or 5, surrounded ROSACEA 477 at the base by a broad ring of long shining white hairs. Fruit ripening from the middle to the end of August, on short stout pubescent pedicels, solitary or in 2 or 3-fruited drooping clusters, obovate to short-oblong, usually about ^' long, bright orange-red, lustrous, marked by numerous pale dots; calyx prominent, with an elon- gated tube puberulous on the outer surface, and reflexed glandular-serrate lobes; flesh thin, yellow, dry and mealy; nutlets 4 or 5, acute at the base, full and rounded at the apex, rounded and occasionally slightly ridged on the back, about ^' long. A tree, rarely more than 15° high, with a long straight trunk 6'-8' in diameter, covered with thick nearly black deeply furrowed bark broken into short thick plate- like scales, small drooping branches forming a handsome symmetrical head, and slender conspicuously zigzag pendulous branchlets coated at first with long pale matted hairs, becoming during their first season dark red-brown and more or less villose, and dark brown the following year, and armed with thin straight spines l^'-l' long, or unarmed. Distribution. Dry sandy soil of the Pine barrens of northeastern Florida; abun- dant in the neighborhood of Jacksonville. 107. Crataegus lacrimata. Small. Leaves obovate, rounded or acute and glandular-serrate at the apex, usually with incurved teeth, entire and glandular below, gradually narrowed from above the middle to the base, and 3-nerved, with slender yellow nerves, numerous thin second- ary veins and reticulate veinlets, when the flowers open early in April nearly fully grown, light yellow, glabrous, with the exception of small tufts of pale caducous hairs in the axils of the nerves below, and at maturity subcoriaceous, lustrous, \'-^' long, about ^' wide; their petioles slender, wing-margined toward the apex, dark orange-brown, at first puberulous, soon becoming glabrous, j'-^ long. Flowers about f in diameter, on short stout glabrous pedicels, in 3-5-flowered simple corymbs, with long linear entire caducous bracts and bractlets turning red in fading; calyx-tube broadly obconic, glabrous, the lobes gradually narrowed from broad bases, acuminate, entire, tipped with large dark glands; stamens 20; anthers large, light yellow; styles usually 3, surrounded at the base by a narrow ring of pale hairs. Fruit ripening toward the end of August, on slender pedicels, in 1 or 2-fruited clusters, subglobose to short-oblong, full and rounded at the ends, dull brownish 478 TREES OF NORTH AMERICA yellow marked by occasional dark dots, about ^' in diameter; calyx prominent, with an elongated tube, and spreading lobes usually deciduous before the fruit ripens; flesh thin, yellow, dry and mealy; nutlets 3, very broad, full and rounded at the ends, rounded and sometimes obscurely grooved on the back, about f long. A tree, occasionally 20° but usually not more than 10° high, with a tall trunk 4'-6' in diameter, covered with thick deeply furrowed black bark broken on the sur- face into thick plate-like closely appressed scales, long slender drooping branches forming a handsome symmetrical round-topped head, and thin glabrous very zigzag branchlets light orange-brown when they first appear, soon becoming reddish brown and lustrous, and dark gray-brown in their second year, and armed with many small nearly straight dark chestnut-brown spines |'-|' long. Distribution. Western Florida, Pensacola to De Funiak Springs; sometimes in moist sand; more often in dry barrens; common and often a conspicuous feature of vegetation. * 108. Crataegus Ravenelii, Sarg. Leaves obovate, rounded and abruptly short-pointed or acute at the broad some- times slightly lobed apex, gradually narrowed from above the middle to the elon- gated cuneate base, more or less undulate on the margins, and coarsely and usually doubly glandular-serrate above, with large bright red ultimately dark persistent glands, nearly fully grown when the flowers open the middle of April, and then coated with long pale caducous hairs, and at maturity thin but firm in texture, yellow-green, scabrous on the upper surface, pale and pubescent on the lower sur- face along the slender veins, l'-l|' long and about f ' wide ; their petioles slender, glandular, winged above, tomentose at first, becoming pubescent, \'-^' long; stipules linear to lunate, conspicuously glandular-serrate, tomentose, caducous; on vigorous shoots often 2' long and 11' wide, and frequently divided above the middle into 2 or 3 pairs of broad lateral lobes. Flowers about f in diameter, on slender tomentose pedicels, in few-flowered simple corymbs; calyx-tube narrowly obconic, thickly coated with long white hairs, the lobes lanceolate, villose on the outer, glabrous on the inner surface, glandular, with small red glands; stamens 20; anthers small, pale yellow; styles 5, surrounded at the base by a broad ring of pale tomentum. Fruit ripening ROSACEA 479 early in October, on short thick pedicels, in few-fruited drooping or spreading clus- ters, globose to short-oblong, bright orange-red, marked by occasional dark dots, puberulous at the ends, ^'-^' in diameter; calyx prominent, with enlarged spread- ing and appressed lobes; tlesh thick, yellow, subacid; nutlets 5, narrowed and acute at the ends, ridged on the back, with a narrow elevated ridge, i' long. A tree, 25°-30° high, with a trunk often 14' or 15' in diameter, covered with thick dark brown bark deeply divided into narrow interrupted ridges broken on the sur- face into short thick plate-like scales, heavy ascending or spreading branches forming an open irregular head, and stout zigzag brauchlets thickly coated at first with hoary tomentum, dark purple or red-brown and pubescent during their first summer, be- coming dark red-brown and glabrous the following season, and armed with thick straight dull gray-brown spines usually about 1^' long. Distribution. Sand hills near Aiken, South Carolina, and in Summerville near Augusta, Georgia. 109. Crataegus senta, Beadl. Leaves obovate or obovate-cuneiform, acute or sometimes rounded and frequently slightly divided into several short acute lobes at the broad apex, gradually narrowed from above the middle to the entire base, and serrate or doubly serrate above, with incurved conspicuously glandular teeth, when they unfold often dark red, covered above with long pale caducous hairs and villose below along the midribs and veins, nearly fully grown when the flowers open from the 1st to the 10th of May and then bright yellow-green and almost glabrous with the exception of the persistent tufts of pale hairs in the axils of the veins, and at maturity thin but firm in texture, dark green and lustrous above, paler below, usually about 1^' long and 1' wide, with orange-colored " midribs, generally 3 pairs of slender primary veins extending obliquely to the points of the lobes, and dark conspicuous reticulate veinlets, turning red, yellow, or brown in the autumn; th^ir petioles slender, glandular, wing-margined above, at first tomentose, becoming pubescent or nearly glabrous, about -I' long; on vigorous shoots broadly ovate, often nearly orbicular, more deeply lobed, with broad rounded or acute lobes, 2'-2y in diameter, their stipules lunate, coarsely glandular- dentate, sometimes ^' long. Flowers |' in diameter, on slender elongated pedicels coated with long matted pale hairs, in lax compound 3-6-flowered hairy corymbs, 480 TREES OF NORTH AMERICA with lanceolate straight or falcate glandular bracts and bractlets ; calyx-tube broadly obconic, villose particularly toward the base, the lobes narrow, elongated, acuminate, nearly glabrous, coarsely and irregularly glandular-serrate; stamens 20; styles 3-5, surrounded at the base by a broad ring of hoary tomentum. Fruit ripening and falling at the end of September or early in October, on slender slightly hairy elongated pedicels, in few-fruited drooping clusters, globose, bright red, ^'-^' in diameter; calyx enlarged, with closely appressed lobes; flesh yellow, dry and mealy; nutlets 3-5, full and rounded at the apex, narrowed and acute at the base, slightly grooved on the back, about ^' long. Distribution. Abandoned fields and open Pine woods near Asheville, North Carolina, at elevations of about 2200° above the level of the sea. 110. Crataegus panda, Beadl. Leaves obovate, rounded and short-pointed or abruptly narrowed and acute at the broad occasionally slightly lobed apex, concave-cuneate and glandular at the ^ entire base, and finely serrate above, with minute incurved glandular teeth, when they unfold tinged with red and sparingly villose, nearly fully grown when the I ROSACEA 481 flowers open the 1st of April and then roughened above by short pale rigid hairs and villose above and below on the midribs and on the veins below, and at maturity glabrous, or puberulous on the under surface of the slender midribs, subcoriaceous, light green and lustrous, glandular, I'-l^ long, f'-l' wide, with slender primary veins extending very obliquely toward the end of the leaf, turning yellow-brown or orange color in the autumn before falling; their petioles slender, slightly wing- margined at the apex, villose at first, becoming glabrous, glandular, about |' long; on vigorous shoots broadly ovate, rounded, apiculate and lobed at the apex, puberu- lous and villose along the midribs and veins on the lower surface, often 1|' long and 2' wide. Flo-wers |'-|' in diameter, on slender hairy pedicels, in compact 3-5- flowered simple corymbs; calyx-tube narrowly obconic, covered with matted white hairs, the lobes gradually narrowed from broad bases, acuminate, glandular-serrate, more or less villose; stamens 20; anthers nearly white; styles 3-5, surrounded at the base by a narrow ring of pale hairs. Fruit ripening and falling at the end of August or early in September, on stout pedicels, in erect few-fruited clusters, globose or depressed-globose, orange-yellow, with a red cheek, f'-f' in diameter; calyx slightly enlarged, with closely appressed of ten deciduous lobes; flesh thick, succulent, orange- yellow; nutlets 3-5, narrowed and acute at the ends, grooved on the rounded back, with a broad shallow groove, about ^' long. A tree, 20°-25° high, with a trunk sometimes a foot in diameter, covered with dark rough bark, crooked recurved branches forming an open irregular head, and stout branchlets covered at first with matted pale hairs, reddish brown and puberu- lous during their first season, becoming gray, and unarmed, or occasionally armed with stout spines ^'-V long. Distribution. Dry sandy soil near Tallahassee, Florida. 111. Crataegus integra, Beadl. Leaves obovate to oblong-obovate, narrowed from near the middle to the acute apex, concave-cuneate and gradually narrowed to the slender base, conspicuously gland- ular on the entire often slightly undulate margins, nearly half grown when the flowers open about the 20th of March, and then slightly hairy along the midribs and on the under side of the veins, and at maturity subcoriaceous, bright green, lustrous, and glabrous above, paler below, I'-l^' long and about f wide, with thin yellow midribs 482 TREES OF NORTH AMERICA puberulons below, slender primary veins extending very obliquely to the end of the leaf, with 1 or 2 pairs near the middle of the blade more prominent than those below and above them, turning in the autumn yellow, orange, and brown; their peti- oles slender, narrowly wing-margined above, glandular, at first hoary-tomentose, becoming pubescent or pubendous, \'-^' long; on vigorous shoots broadly obovate, short pointed at the apex, slightly undulate-lobed above the middle, conspicuously reticulate-venulose, sonietimes 1^' long and broad. Flowers f'-f in diameter, on slender elongated hoary-tomentose pedicels, in 3-5-flowered simple corymbs; calyx- tube narrowly obconic, thickly covered with matted white hairs, the lobes gradually narrowed from broad bases, acuminate, glandular, pilose on the outer, sparingly pilose on the inner surface; stamens 20; anthers pale yellow; styles 3-5, surrounded at the base by a thick ring of white hairs. Fruit ripening and falling in August, on slender erect pubescent pedicels, globose, red, about ^' in diameter; calyx deciduous; flesh thin, orange-yellow, and succulent; nutlets 3-5, narrowed and acute at the base, rounded at the apex, flat and grooved on the back, with a narrow shallow groove, about ^^' long. A tree, 12°-15° high, with a trunk sometimes 8' in diameter, covered with thick nearly black checkered bark, drooping branches forming a handsome symmetrical head, and slender very zigzag branchlets clothed at first with hoary tomentum, rather bright reddish brown and roughened by minute tubercles at the end of their first season, becoming gray or grayish brown, and unarmed, or armed with occasional short slender spines. Distribution. Sandy woods and abandoned fields; central Florida; common near Eustis. 112. Crataegus recurva, Beadl. Leaves spatulate, rounded or acute or sometimes obovate and obtusely 3-lobed at the apex, and finely glandular-serrate, with bright red glands, nearly half grown [^,.597 when the flowers open about the 20th of March and then almost glabrous above, slightly hairy near the base below, and at maturity subcoriaceous, glabrous, about 1' long and \'-^' wide, with slender yellow midribs and one pair of veins often more prominent than the others and nearly parallel with the margins of the blade, turning in the autumn yellow, orange, and brown; their petioles slender, conspicuously ROSACEA 483 glandular, villose at first, becoming glabrous, \'-^' long; on vigorous shoots broadly obovate, deeply divided into narrow lateral ascending rounded lobes, concave-cuueate at the base, with stouter midribs and veins arching to the points of the lobes, and often 1' long and |' wide. FloTvers ^'-f in diameter, on stout pedicels thickly covered with matted pale hairs, solitary or in 2-flowered simple corymbs; calyx-tube broadly obconic, pilose below, nearly glabrous above, the lobes slender, acuminate, glandular- serrate, slightly hairy on the outer, glabrous on the inner surface; stamens 20; anthers pale yellow; styles 3-5. Fruit ripening in August, erect on short stout pedicels, pyri- form, red, ^' long; calyx little enlarged, often deciduous; flesh thick and soft; nut- lets 3-5, full and rounded at the ends, rounded and obscurely grooved on the back, about \' long. A tree, 15°-18° high, with a short trunk 5'-6' in diameter, covered with gray or brownish rough bark, slender pendulous branches forming a broad symmetrical head, and slender very zigzag branchlets, villose at first, becoming bright chestnut-brown and very lustrous and ultimately dark reddish brown, and armed with numerous slen- der straight spines usually about ^' long. Distribution. Dry sandy soil, Ocala, Florida. 113. Cratcegus annosa, Beadl. Leaves obovate, oval, or oblanceolate, cuneate and glandular at the base, sharply and often doubly glandular-serrate above, and usually slightly lobed toward the short-pointed acute apex; more than half grown when the flowers open early in April and then pale yellow-green and scurfy above, with a few short pale hairs above and below near the base of the midribs, and at maturity thin and firm, bright green, 1-1^' long and f -1' wide, with prominent pale yellow midribs, and remote slender veins extending very obliquely to the points of the lobes, turning in the autumn yellow, orange, or brown; their petioles slender, narrowly winged above, conspicu- ously glandular, with large dark glands, i'-|'long; on vigorous shoots broadly ovate to obovate or suborbicular, coarsely serrate, conspicuously reticulate-venulose, some- times 2' long and broad, with broadly winged petioles and foliaceous coarsely den- tate persistent stipules often |' long. Flowers f' in diameter, on stout villose pedicels, in simple 3-5-flowered villose corymbs; calyx-tube narrowly obconic, spar- ingly villose toward the base, the lobes acute, glandular-serrate, glabrous on the 484 TREES OF NORTH AMERICA outer, puberulous ou the iuner surface; stamens 20; anthers almost white; styles 3-5, surrounded at the base by a broad ring of snow-white tomentum. Fruit ripen- ing and falling late in August or early in September, subglobose or oval, orange-red or red and orange, about ^' long; cal}TC little enlarged, the lobes puberulous on the upper side and reflexed; tlesh thick and soft; nutlets 3-5, full and rounded at the base, narrowed and rounded at the apex, rounded and ridged on the back, with a broad low rounded ridge, about ^^^' long and ^^' wide. A tree, 20°-25° high, with a trunk sometimes a foot in diameter, covered with dark rough often black bark, stout spreading or ascending branches, and thick dull red-brown ultimately dark gray or nearly black brauchlets armed with straight rather stout spines I'-l^' long. Distribution. Eastern central Alabama; common near Phcenix and Gerard. 114. Crataegus dispar, Beadl. Leaves broadly ovate or orbicular, 3-nerved, acute or rounded at the apex, gen- erally narrowed and cuneate or concave-cuneate at the glandular entire base, serrate or doubly serrate above, with straight or incurved glandular teeth, and mostly divided above the middle into short acute lobes, when they unfold coated with long matted white hairs most abundant on the lower surface, more than half grown when the flowers open about the middle of April and then blue-green and villose above and tomentose below, and at maturity thin but firm in texture, blue-green and gla- brous on the upper surface, pale and slightly pubescent on the lower surface, usually about V long and |'-1' wide, turning red, yellow, or brown in the autumn; their petioles slender, tomentose, becoming pubescent or villose, glandular, slightly wing- margined above, usually about ^' long ; stipules lunate, coarsely glandular-serrate, j^'-Y long, caducous; on vigorous shoots broadly ovate or suborbicular, full and rounded at the broad base, coarsely serrate, and often deeply divided above the middle into 3 wide acute lobes broader than long. Flo'wers about f in diameter, on slender hoary-tomentose pedicels, in simple 3-7-flowered corymbs, with narrow obovate acute glandular bracts and bractlets^^ calyx-tube narrowly obconic, coated with hoary tomentum, the lobes narrow, acute, glandular-serrate, with minute bright red glands, tomentose on the outer surface below the middle, glabrous above, tomen- tose on the inner surface; stamens 20; styles 3-5, surrounded at the base by a ring HOSACE^ 485 of pale tomentum. Fruit ripening late in August or early in September, on slender pubescent pedicels, in few-fruited clusters, subglobose to short-oblong, light red, puberulous toward the ends, about ^' in diameter; calyx prominent, with reflexed closely appressed lobes tomentose at the base; flesh thin, yellow, subacid; nutlets 3-5, broad, rounded at the ends, ridged on the back, with a broad low ridge, dark brown, ^' long. A tree, 20°-25° high, with a short trunk a foot in diameter, heavy ascending branches forming a broad irregular head, and stout zigzag branchlets at first hoary- tomentose, dark red-brown and pubescent during their first summer, becoming darker colored and glabrous the following season, and armed with thick or thin nearly straight dark red-brown ultimately gray spines l^'-2' long. Distribution. Dry sand hills near Aiken and Trenton, South Carolina, and abundant at Summerville, near Augusta, Georgia. **Stamens 10 ; anthers yellow. 115. Crataegus aprica, Beadl. Leaves broadly obovate, oval, or rhomboidal, acute and short-pointed or rounded and often somewhat lobed at the apex, gradually or abruptly narrowed and cuneate at the entire base, and serrate usually only above the middle, with small incurved teeth terminating in conspicuous rose-colored ultimately dark red persistent glands, when they unfold deep orange color, roughened above by short pale appressed hairs and sparingly villose below, particularly along the slender midribs and remote primary veins, nearly fully grown when the flowers open about the 10th of May, and at ma- turity thick and firm, glabrous, very smooth, dark yellow-green on the upper surface, paler on the lower surface, I'-l^' long, and V wide; their petioles stout, conspicuously glandular, more or less winged toward the apex, at first villose, ultimately nearly glabrous, usually bright red on the lower side toward the base after midsummer, about I' long; on vigorous shoots often nearly orbicular, frequently more deeply lobed, l^'-2' long and wide, with stout broad-margined petioles, and foliaceous lunate stipules. Flo-wers |' in diameter, on slender villose pedicels, in small 3-6-flowered compact simple corymbs; calyx-tube broadly obconic, villose at the base, glabrous 486 TREES OF NORTH AMERICA above, the lobes gradually narrowed from broad bases, acuminate, glabrous, coarsely glandular-serrate; stamens 10; anthers small, bright yellow; styles 3-5, surrounded at the base by a narrow ring of pale hairs. Fruit ripening late in the autumn, on stout glabrous or slightly villose pedicels, in erect or drooping usually 2 or 3-fruited clusters, subglobose, rarely ratlier longer than broad, about ^ i" diameter, dull orange-red, often slightly villose at the ends, marked by numerous small dark dots; calyx much enlarged, with a broad prominent deep tube and wide-spreading coarsely glandular acuminate lobes bright red at the base on the upper side; flesh thin, light yellow, sweet and rather juicy ; nutlets 3-5, full and rounded at the ends, rounded and ridged on the back, with a broad low ridge, about \' long. A tree, occasionally 20° high, with a stem 6'-8' in diameter, covered with deeply furrowed dark gray bark broken irregularly into small persistent plate-like scales, and becoming on old stems often nearly black, spreading often elongated contorted branches forming a broad open head, and slender zigzag branchlets at first dark green tinged with red and villose, soon becoming nearly glabrous, light orange- brown at midsummer, dark reddish brown or purple before winter, and ultimately ashy gray, and armed with thin nearly straight chestnut-brown spines I'-l^'long; or frequently a much-branched shrub, with several stout spreading stems. Distribution. Dry woods in the foothill region of the southern Appalachian Mountains; southwestern Virginia through western North Carolina to eastern Ten- nessee, northern Georgia and Alabama, usually at elevations between 1500° and 3500° above the sea; common. XV. MICRO CARP-ai. Fruit short-oblong ; leaves orbicular to broadly ovate, pinnately 5-7-cleft. 116. C. apiifolia (C). Fruit subglobose. Leaves broadly ovate to triangular, long-stalked. 117. C. cordata (A, C). Leaves spatulate to oblanceolate, short-stalked. 118. C. spathulata (C). 116. Crataegus apiifolia, Michx. Parsley Haw. Leaves broadly ovate to orbicular, acute, truncate, slightly cordate, or wedge- shaped at the broad base, and pinnately 5-7-cleft, with shallow acute or deep wide sinuses, and incisely lobed broad or acute segments serrate toward the apex, with spreading glandular teeth, when they unfold pilose above, with long pale hairs, and mostly glabrous below, fully grown when the flowers open late in March or early in April, and at maturity membranaceous, bright green and rather lustrous above, paler and glabrous or pilose below along the prominent midribs and primary veins, or on occasional plants pubescent on both surfaces, |'-1^' broad; their petioles slender, pubescent, becoming glabrous, I'-l^' long; on vigorous shoots often divided nearly to the midrib, with foliaceous lunate coarsely glandular-serrate short-stalked stipules sometimes ^' long. Flowers i' in diameter, on long slender hairy pedicels, in crowded densely villose compound usually 10-12-fl.owered corymbs; calyx-tube narrowly obconic, glabrous or covered with long matted pale hairs, the lobes lanceo- late, acute, glabrous, usually glandular-serrate, often tinged with red toward the apex; stamens 20; anthers bright rose color; styles 1-3. Fruit ripening in October and persistent on the branches until the beginning of winter, oblong, bright scarlet, ^' long; calyx prominent, the lobes elongated, reflexed, often deciduous from the ROSACEA 487 ripe fruit; flesh thin; nutlets 1-3, full and rounded at the ends, rounded and pro- minently ridged and grooved on the back, about ^' long. A tree, occasionally 20° high, with a trunk rarely 6'-8' in diameter, branches spreading nearly at right angles and forming a wide irregular open head, and slender more or less zigzag often contorted branchlets covered at first with long pale hairs, light red or pale orange-brown and usually puberulous in their first winter, ulti- mately light brown or ashy gray, and armed with stout straight chestnut-brown spines I'-l^' long. Distribution. Borders of streams and swamps or on hummocks in Pine barrens throuorh the coast region of the south Atlantic states from southern Virginia to cen- tral Florida, and westward to southern Arkansas and the valley of the Trinity River, Texas; most abundant and of its largest size in southern Arkansas and western Louisiana. 117. Crataegus cordata, Ait. Washington Thorn. Leaves broadly ovate to triangular, acute or acuminate, truncate, slightly wedge- shaped, rounded or cordate at the entire base, and coarsely serrate above, with acute spreading often gland-tipped teeth, and more or less incisely lobed, or often 3-lobed, tinged with red when they unfold and sparingly pilose above, with long pale cadu- cous hairs, fully grown when the flowers open at the end of May, and at maturity thin but firm, dark green and lustrous above, pale below, or rarely pubescent on the lower surface, especially on the conspicuous orange-colored midribs and primary veins, l^'-2' long, I'-l^' wide, turning late in the autumn bright scarlet and orange; their petioles slender, terete, glabrous, f'-l^ long. Flowers on slender pedicels, in rather compact many-flowered glabrous corymbs ; calyx-tube broadly obconic, glabrous, the .lobes short, nearly triangular, entire, abruptly contracted at the apex into minute points, glabrous on the outer, pubescent on the inner surface, ciliate on the margins; stamens 20; anthers rose color; styles 2-5, surrounded at the base by conspicuous tufts of pale hairs. Fruit ripening in September and October and persistent on the branches until late in the spring of the following year, depressed-globose, scarlet, lustrous, ^' in diameter; calyx deciduous from the ripe fruit, leaving a wide circular scar surrounding the persistent erect tips of the carpels; 488 TREES OF NORTH AMERICA nutlets 3-5, narrowed and acute at the base, full and rounded at the apex, rounded and obscurely ridged on the back, about ^' long. A tree, 20°-30° high, with a straight trunk sometimes afoot in diameter, generally dividing 4°-5° above the ground into slender usually upright branches forming an oblong or occasionally round-topped head, slender zigzag glabrous bright chestnut- brown lustrous branchlets, becoming dark gray or reddish brown, and armed with slender sharp spines 1^-2' long; often much smaller and sometimes a broad spread- ing bush. Distribution. Banks of streams in rich soil; valley of the upper Potomac River, Virginia, southward in the foothill region of the Appalachian Mountains to northern Georgia and Alabama, and westward through middle Tennessee and Kentucky to the valley of the lower Wabash River, Illinois, Osage, Missouri, and southeastern Missouri to northwestern Arkansas; now^here common. Often cultivated in the eastern states and in western Europe; hardy as far north as eastern Massachusetts. 118. Crataegus spathulata, Michx. Leaves spatulate to oblanceolate, rounded or acuminate and sometimes 3-lobed at the apex, gradually narrowed from above the middle to the slender concave- cuneate entire base, and crenately serrate above, nearly fully grown when the flowers open from March to May and then sparingly villose above, with long white caducous hairs, and at maturity subcoriaceous, glabrous, dark green and lustrous above, paler below, reticulate-venulose, with obscure yellow midribs and primary veins, l'-2' long, l'-l|' wide, and clustered at the ends of short lateral branchlets; their petioles slender, wing-margined to the base, l'-\' long; on vigorous shoots often deeply 3-lobed above the middle, with rounded coarsely crenately serrate lobes, narrowed below into long winged petioles, l'-2' long, and l'-l|' wide, with broad thick midribs often pilose on the lower surface, their stipules foliaceous, lunate, sharply serrate, stalked, often i' broad. Flowers, ^' in diameter, on long slender pedicels, in glabrous many-flowered narrow compound corymbs; calyx-tube broadly obconic, glabrous, the lobes short, nearly triangular, almost entire, minutely glandu- lar-apiculate ; stamens 20; anthers bright rose color; styles 2-5. Fruit ripening in ROSACEA 489 October, subglobose, bright scarlet, lustrous, about ^' in diameter; calyx only slightly enlarged, witli reflexed lobes; flesh thin, dry and mealy; nutlets 3-5, full and rounded at the apex, narrowed at the base, rounded and sometimes slightly ridged on the back, jq'-^' long. A tree, 18°-25° high, with a straight trunk occasionally 8'-10' in diameter, slender upright and spreading branches forming a broad open head, and thin zigzag gla- brous light reddish brown branchlets, unarmed, or armed with straight stout light brown spines I'-l^' long; more often a shrub, with numerous spreading stems. Distribution. Rich soil usually near the banks of streams or swamps, or low de- pressions in Pine forests; coast region of the south Atlantic states from southern Virginia to northern Florida, and through the Gulf states to the valleys of the Washita River, Arkansas, and of the Colorado River, Texas; very abundant and of its largest size on the bottom-lands of western Louisiana, eastern Texas, and southern Arkansas. XVI. BRACHYACANTHiE. Leaves lanceolate-oblong' to ovate or rhoraboidal; ovate to nearly triangular on vigorous shoots ; fruit subglobose to obovate, bright blue covered with a glaucous bloom. 119. C. brachyacantha (C). Leaves narrowly rhomboidal to oval ; lanceolate-acuminate on vigorous shoots ; fruit glo- bose, blue-black, very lustrous. 120. C. saligna (F). 119. Crataegus brachyacantha, Sarg. & Engelm. Pomette Bleue. Leaves lanceolate-oblong to ovate or rhomboidal, acute or rounded at the apex, gradually narrowed to the concave-cuneate entire base, crenulate-serrate above, with minute incurved glandular teeth, slightly puberulous when they unfold on the upper and glabrous on the under surface, nearly fully grown when the flowers open at the end of April and early in May, and at maturity subcoriaceous, glabrous, dark green and lustrous, l'-2' long, ^' to nearly 1' wide, with thin inconspicuous midribs and veins; their petioles slender, narrowly wing-margined above, -j'-f long, on vigorous shoots sometimes broadly ovate or almost triangular, wedge-shaped, truncate, or heart-shaped at the broad base, more or less deeply lobed, frequently 2^' long and 2' wide, with foliaceous broadly ovate to triangular acute stalked stipules sometimes V 490 TREES OF NORTH AMERICA long. Flo"wers ^' in diameter, on slender pedicels, in crowded glabrons niany-flovv- ered compound corymbs; calyx-tube narrowly obconic, glabrous, the lobes short, nearly triangular, gradually narrowed to the gland-tij)ped apex, entire; petals turn- ing bright orange color in fading; stamens 15-20; styles 3-5. Fruit ripening and falling the middle of August, on slender erect pedicels, in few-fruited clusters, sub- globose or rarely obovate, bright blue covered with a glaucous bloom, ^'-^' in diame- ter; calyx slightly enlarged, with spreading lobes; flesh thin; nutlets 3-5, narrowed and acute at the base, full and rounded at the apex, rounded and slightly grooved on the back, about \' long. A tree, 40°-50° high, with a tall trunk 18'-20' in diameter, covered with thick dark brown deeply furrowed scaly bark, and divided usually 5°-10° from the ground into stout spreading light gray branches forming a broad compact round-topped head, and branchlets light green and slightly pubescent at first, soon becoming glabrous and pale red-brown and ultimately ashy gray, and armed with numerous short stout generally curved or sometimes straight slender spines j'-f long and often terminal also on the lateral branchlets of vigorous shoots. Distribution. Borders of streams in rich moist soil; Texarkana, southern Arkan- sas, through western Louisiana to the valley of the Sabine River, Texas; in the neigh- borhood of Opelousas, Louisiana, surrounding with dense groves low wet prairies, and a conspicuous and beautiful feature of the arborescent vegetation. 120. Crataegus saligna, Greene. Leaves narrowly rhombic to oval, gradually narrowed at the ends, acute or acu- minate and apiculate at the apex, entire toward the base, finely serrate above, with incurved teeth tipped with minute bright red glands, nearly fully grown when the flowers open toward the middle of June, light yellow-green, covered above with short pale hairs and pale and glabrous below, and at maturity thick and firm, dark green, glabrous and lustrous above, pale below, l^'-2' long and f-V wide, with stout mid- ribs rose color on the upper side, dark obscure forked veins, and reticulate veinlets, turning late in the autumn to brilliant shades of orange and bright scarlet; their petioles slender, about 1' long and glandular near the base, with 2 or 3 large stipi- tate dark red caducous glands; on vigorous leading shoots lanceolate, acuminate, ROSACEA 491 coarsely serrate, often irregularly and deeply divided into 2 or 3 acute lateral lobes, 3'-3^' long and 1^-1^' wide, their stipules often f long. Flo"wers about |' in diameter, on short slender pedicels, in compact glabrous few or many-flowered compound corymbs; calyx-tube glabrous, the lobes nearly triangular, entire, often bright red toward the apex; stamens 20; anthers small, yellow; styles 5. Fruit ripening toward the end of September, on stout pedicels, in compact drooping clus- ters, globose, Y i^ diameter, dull vinous red and very lustrous when fully grown, ultimately blue-black; calyx small, with reflexed persistent lobes; flesh thin, yellow, dry and sweet; nutlets 5, thick, rounded and slightly ridged on the back, ^'— ^V long. A tree, occasionally 20° high, with a short stem, and long slender spreading branches gracefully drooping at the ends, covered with bright red or reddish brown bark, separating on old trunks near the ground into long slightly attached narrow plate-like gray scales, and slender glabrous bright red lustrous branchlets armed with numerous straight slender spines f'-l^' long; often forming clumps or small thickets with numerous stems 8°-lo° tall springing from a single root. Distribution, Banks of the Cimraaron, Gunnison, White, and other Colorado streams on both slopes of the continental divide at elevations of 6000°-8000° above the sea. XVII. TOMENTOSiE. Leaves thin, with midribs and veins only slightly impressed on their upper surface ; anthers rose color or red. Mature leaves pale pubescent below. Leaves ovate to ovate-oblong- ; fruit in erect clusters, pear-shaped, orange-red ; stamens 20. 121. C. tomentosa (A, C). Leaves ovate, oval, or obovate, in drooping clusters, globose to subglobose, bright red; stamens 10. 122. C. Chapmani (A, C). Mature leaves glabrous {slightly pubescent on the midribs and veins below in 123). Stamens 20. Leaves elliptical to suborbicular, smooth above ; fruit in drooping clusters, sub- globose to short-oblong. 123. C. Gaultii (A). 492 TREES OF NORTH AMERICA Leaves elliptical, scabrate above ; fruit in erect clusters, subglobose. 124. C. vegeta (A). Stamens 10 ; leaves ovate, scabrate above ; fruit short-oblong. 125. C. Deweyana (A). Leaves subcoriaceous to coriaceous, with midribs and veins deeply impressed on their upper surface and pubescent below. Anthers rose color, kjtamens 20. Leaves elliptical, acute at the ends ; fruit globose. 12(3. C. succulenta (A). Leaves broadly oval or obovate ; fruit subglobose to short-oblong. 127. C. gemmosa (A). Stamens 10. Leaves broadly obovate or oval ; fruit globose, villose at the ends ; calyx-lobes coarsely glandular-serrate. 128. C. Illinoiensis (A). Leaves broadly obovate to oval or rhomboidal ; fruit subglobose ; calyx-lobes entire. 129. C. integriloba (A). Anthers yellow ; stamens 10 ; leaves broadly obovate to elliptical or oval ; fruit in erect clusters, globose. 130. C. macracantha (A). 121. Crataegus tomentosa, L. Leaves ovate to ovate-oblong, acute, abruptly acuminate or rarely rounded at the apex, gradually narrowed to the cuneate entire base, sharply and usually doubly serrate above, with broad spreading often glandular teeth, and often divided above the middle into several short lateral lobes, nearly fully grown when the flowers open from the 1st to the middle of June, and at maturity thin but firm in texture, gray- green, coated below with pale persistent pubescence, puberulous or ultimately gla- brous above, conspicuously reticulate-venulose, 2'-5' long, l'-3' wide, with broad midribs and primary veins, turning brilliant orange and scarlet in the autumn before falling; their petioles stout, glandular, wing-margined, ^'-f long. Flowers i' in diameter, on slender villose pedicels, in broad compound many-flowered villose corymbs; calyx-tube obconic, hoary-tomentose, the lobes lanceolate, acute, coarsely or pinnately serrate, usually glandular; stamens 20; anthers pale rose color; styles 2-5. Fruit ripening in October, on slender erect pubescent pedicels, in broad many- fruited clusters, pear-shaped or rarely subglobose, \' in diameter, erect, dull orange- ROSACEA 493 red, translucent when fully ripe, mostly persistent on the branches until the follow- ing spring; flesh thick, orange-yellow, sweet and succulent; nutlets 2 or 3, about ^' long and broad, full and rounded at the ends, rounded and prominently ridged on the back, the ventral cavities broad and deep. A tree, lo°-20° high, with a trunk o'-6' in diameter, covered with smooth pale gray or dark brown furrowed bark, slender spreading often nearly horizontal smooth grav branches forming a wide flat head, and slender branchlets covered at first with thick hoary tomentum, becoming dark orange color and puberulous in their first winter, and ashy gray in their second season, and unarmed, or armed with occasional slender straight dull ashy gray or very rarely bright chestnut-brown spines I'-l^' long. Distribution. Near Troy, New York, to eastern Pennsylvania, and westward through central New York to central Michigan, southern Minnesota, Iowa, Missouri, and eastern Kansas, and southward along the Appalachian Mountains to northern Georgia and central Tennessee. Occasionally cultivated as an ornamental tree in the gardens of western Europe. 122. Crataegus Chapmani, Ashe. ' Leaves ovate, oval, or obovate, acuminate, gradually narrowed and acute or con- cave-cuneate at the entire base, sharply serrate above, with glandular teeth, and often slightly lobed above the middle, about half grown when the flowers open early in June and then covered above with short soft pale hairs and pale-tomentose below, and at maturity dark dull green and smooth or scabrate above, pale-tomentulose below, especially along the slender yellow midribs and primary veins, 2^'-3' long, l|'-2l' wide, and on vigorous shoots sometimes 6' long and 4' wide, turning yellow or brown in the autumn before falling; their petioles stout, wing-margined at the apex, at first tomentose, becoming nearly glabrous, ^'-|' long. Flowers about |' in diameter, on long stout hoary-tomentose or pubescent pedicels, in broad compound many-flowered tomentose corymbs; calyx-tube narrowly obconic, tomentose, the lobes acuminate, glandular-serrate, sparingly villose; stamens 10; anthers rose color; styles 2 or 3. Fruit ripening the middle of September, on elongated slightly villose pedi- cels, in broad lax drooping many-fruited clusters, globose to subglobose, bright red, about 1^' in diameter; calyx only slightly enlarged, with reflexed coarsely glandular- 494 TREES OF NORTH AMERICA serrate lobes; flesh juicy, succulent, yellow; nutlets 2 or 3, about |' long and nearly as broad, thin, full and rounded at the obtuse ends, rounded and obscurely ridged on the back, the ventral cavities broad and deep. A tree, sometimes 20° high, with a short trunk C'-8' in diameter, covered with gray scaly bark, erect branches forming a broad open head, and slender branchlets at first hoary-tomentose, becoming bright red-brown and lustrous, and armed with occasional stout straight or curved bright chestnut-brown spines 1^-2' long. Distribution. Low rich soil on the banks of streams in the Appalachian region from Virginia to northern Georgia and eastern Tennessee. 123. Crataegus Gaultii, Sarg. Leaves elliptical to suborbicular, acute or rounded at the apex, concave-cuneate or rounded at the entire base, coarsely doubly serrate above, with straight glandular teeth, and occasionally divided above the middle into short acute lobes, nearly fully grown when the flowers open at the end of May and then very thin, yellow-green and sparingly villose above, pale and slightly pubescent below, and at maturity thin but firm in texture, glabrous, dark dull green on the upper surface, pale on the lower surface, 21'-3' long, 2'-2|' wide, with stout yellow midribs deeply impressed above, and 6 or 7 pairs of primary veins extending obliquely to the points of the lobes; their petioles stout, wing-margined to below the middle, villose on the upper side early in the season, with matted white hairs, becoming nearly glabrous, I'-l' long. Flo"wers I' in diameter, on long slender slightly villose pedicels, in broad many-flowered hairy compound corymbs, with 3-flowered peduncles from the axils of the 2 upper leaves, their bracts and braetlets linear, acuminate, glandular, mostly persistent until the flowers open; calyx-tube narrowly obconic, glabrous, the lobes broad, acuminate, coarsely glandular-serrate, glabrous on the outer, villose on the inner surface; sta- mens 18-20; anthers pale pink; styles 2 or 3. Fruit ripening from the middle to the end of September, on slender slightly hairy pedicels, in few-fruited drooping clusters, subglobose to short-oblong, ^'-f long; calyx prominent, with spreading ap- pressed coarsely serrate lobes; flesh thick, yellow, soft and juicy; nutlets 2 or 3, full and rounded at the ends, about ^^' long and nearly as wide, full and rounded on the back, with a high rounded ridge, the ventral cavities long, deep, and narrow. A tree, 20°-25° high, with a trunk often 10' in diameter and 6°-7° long, spread- ROSACEA 495 ing branches forming a broad round-topped head, and slender slightly zigzag glabrous light red-brown lustrous branchlets, unarmed, or armed with occasional straight slender dark purple shining spines 1^'-1|' long. Distribution. Open pastures, Milton Township, Du Page County, and Glen Ellyn and Mokena, northeastern Illinois. 124. Crataegus vegeta, Sarg. Leaves elliptical, acuminate, gradually narrowed and concave-cuneate at the entire base, finely often doubly serrate above, with straight glandular teeth, and slightly divided above the middle into numerous short acute lobes, nearly fully grown when HXDC) the flowers open at the end of May and then membranaceous, dark yellow-green and roughened above by short rigid pale hairs and densely pubescent below, and at maturity thin but firm in texture, dark dull green and scabrate on the upper surface, pale and pubescent on the lower surface along the slender midribs and 5 or 6 pairs of thin primary veins arching obliquely to the points of the lobes, 3'-4' long, l|^'-2-l' wide ; their petioles slender, broadly wing-margined at the apex, villose on the upper side early in the season, becoming glabrous and rose color in the autumn, V-f long. Flo"wers ■|'-f in diameter, on long slender villose pedicels, in usually 10-12-flowered hairy compound corymbs, with linear to linear-obovate acute glandular bracts and bractlets becoming reddish and mostly persistent until after the flowers open; cah^-tube nar- rowly obconic, villose, the lobes slender, acuminate, glandular-serrate, villose; sta- mens 20; anthers small, light pink or red; styles 2 or 3, usually 3. Fruit ripening late in September, on slender elongated rigid slightly villose pedicels, in few-fruited erect clusters, subglobose, scarlet, lustrous, marked by small pale dots, about |' in diameter; calyx prominent, with a short tube and spreading reflexed serrate lobes; flesh thin, yellow, dry and mealy; nutlets 2 or 3, ^ long and nearly as broad, full and rounded at the ends, prominently ridged on the back, with a high grooved ridge, the ventral cavities broad and deep. A tree, 20°-25° high, with a tall straight trunk sometimes 8' in diameter, stout wide- spreading branches forming a symmetrical round-topped head, and very slender nearly straight branchlets, light orange-green when they first appear, becoming bright red- brown and lustrous at the end of their first season and darker the following year, 496 TREES OF NORTH AMERICA and unarmed, or sparingly armed with slender nearly straight purple shining spines about r l()noidal, coarsely serrate, often slightly incisely lobed, coriaceous, 3' long and 2' wide, with stout broadly winged petioles. Flowers i' in diameter, on long slender pedicels, in rather compact globose many-flowered com- pound corymbs; calyx-tube broadly obconic, glabrous, the lobes linear, entire or glandular, witli minute caducous glands, glabrous on the outer, sparingly villose on the inner surface, often tinged with red; stamens 20; anthers pale yellow. Fruit ripening in September, on long pedicels, in drooping few-fruited clusters, short- oblong, full and rounded at the ends, dark crimson and marked by many large white dots when fully grown, becoming black and lustrous at maturity, Y-^' long; calyx slightly enlarged, persistent, with elongated closely appressed entire lobes slightly villose and dark red on the upper side below the middle; flesh thin, yellow, dry and mealy; nutlets 3-5, \' long, narrowed and rounded at the ends, slightly ridged on the back, the ventral cavities broad and shallow. A tree, occasionally 20° high, with a slender stem covered with dark brown scaly bark, erect branches forming a narrow rather open head, and slender bright red- brown lustrous branchlets marked by numerous pale lenticels, and unarmed, or armed with straight slender spines usually about 1' long. Distribution. Banks of mountain streams, often forming thickets; Wyoming to southwestern Colorado and western Utah; most abundant on the Wasatch Mountains of Utah. 8. CERCOCARPUS, H. B. K. Mountain Mahogany. Trees or shrubs, with scaly bark, rigid terete branches, short lateral spur-like branchlets conspicuously roughened for many years by the crowded narrow horizontal scars of fallen leaves, minute buds, the scales of the inner rows accrescent on the growing shoots and often colored. Leaves alternate, simple, entire, or serrate, coria- ceous, straight-veined, short-petiolate, persistent; stipules minute, adnate to the base of the petiole, deciduous. Flowers axillary on the short lateral branchlets, sessile or short-pedicellate, solitary or fascicled; calyx-tube long and cylindrical, abruptly ROSACEJE 505 expanded at the apex into a cup-shaped, 5-lobed deciduous limb, the lobes imbri- cated in the bud; disk thin, slightly glandular, adnate to the tube of the calyx; petals 0; stamens 15-30, in 2 or 3 rows; filaments incurved in the bud, free, short, terete; anthers oblong, pubescent or tomentose, distinct and united by a broad con- nective; ovary composed of a single carpel inserted in the bottom and included in the tube of the calyx, acute, terete, smooth, striate or sulcate, sericeous, rarely bicar- pellate; style terminal, filiform, villose or glabrate, crowned with a minute obtuse stigma; ovule solitary, subbasilar, ascending; raphe dorsal; micropyle inferior. Fruit a linear-oblong coriaceous slightly ridged angled or sulcate akene, included in the persistent tube of the calyx and tipped with the elongated persistent style clothed with long white hairs. Seed solitary, linear, acute, erect; hilum conspicuous, lateral above the oblique base; testa membranaceous; embryo tilling the cavity of the seed; cotyledons ovate-oblong, elongated, fleshy; radicle inferior. Cercocarpus is confined to the dry interior and mountainous regions of Nortk America. Five species are distinguished; of these four occur within the territory of the United States, and the fifth inhabits the mountains of southern Mexico. The heavy hard brittle wood of all the species makes valuable fuel and is occasionally used in the manufacture of small articles for domestic and industrial use. The generic name, from K^pKos and Kap-n6^, refers to the peculiar long-tailed fruit. CONSPECTUS OF SPECIES OF THE UNITED STATES. Flowers in 2-.5-flowered clusters ; leaves coarsely serrate above the middle. Leaves oval to semiorbicular, cinereo-tomentose below, sinuate-dentate ; flowers usually in 4-5-flowered clusters. !• C. TraskiaB (G). Leaves cuneate-obovate, pubescent below, glandular-serrate; flowers usually in 2-3- flowered clusters. 2. C. parvifolius (F, G). Flowers solitary or rarely in pairs ; leaves entire or occasionally slightly dentate toward the apex. Leaves entire, narrowly lanceolate, acute at the ends, pale or rufous-pubescent below. 3. C. ledifolius (B, F, G). Leaves occasionally dentate toward the apex, oblong-obovate to nearly elliptical, villose below. 4. C. breviflorus (E, H). 1. Cercocarpus Traskiae, East"w. Leaves oval to semiorbicular, rounded or acute at the apex, cuneate, rounded or occasionally somewhat cordate at the narrow base, re volute on the margins, entire below, coarsely sinuate-dentate above the middle, with slender teeth tipped with minute dark glands, when they unfold covered above with soft pale hairs and below with thick hoary tomentum, and at maturity coriaceous, dark green and lustrous on the upper surface, cinereo-tomentose on the lower surface, 1^-2' long, I'-l^' wide, with prominent primary veins running obliquely to the points of the teeth, and, like the stout midribs, conspicuously impressed on the upper side; their petioles stout, hoary- tomentose, about \' long; stipules acuminate, scarious, covered on the margins with long white hairs, \' long. Flo"wers appearing early in March, nearly sessile, in axil- lary usually l-S-flowered clusters, hoary-tomentose, \'-\' long; calyx broad, glabrous on the inner surface; anthers tomentose. Fruit: mature calyx spindle-shaped, light reddish brown, villose-pubescent, deeply cleft at the apex, ^' long; akene slightly ridged on the back, i' long, covered with long lustrous white hairs; style l^'-2' in length. 506 TREES OF NORTH AMERICA A tree, occasionally 25° high, with a trunk often inclining, usually much contorted, 2'-10' in diameter and 6°-8° long, stout wide-spreading branches, and stout branch- lets, hoary-tomentose at first, marked by numerous small scattered lenticels, bright reddish brown during two or three years, ultimately dark gray-brown and conspicu- ously roughened by the enlarged ring-like leaf-scars. Bark light gray, sometimes slightly broken by shallow fissures and marked by irregular cream-colored blotches. Distribution. Steep sides of a deep narrow arroyo on the south coast of Santa Catalina Island, California. 2. Cercocarpus parvifolius, Nutt. Leaves cuneate-obovate, rounded, obtuse or rarely acuminate, gradually con- tracted at the base, coarsely glandular-serrate above the middle, or rarely almost entire, or slightly 3-toothed or apiculate at the apex, when they unfold coated with pale pubescence, and at maturity subcoriaceous, dark yellow-green, puberulous or glabrous on the upper surface, paler, slightly pubescent, and often nearly white or i ROSACEA 507 sometimes rusty brown on the lower surface, |'-2^' long, and i' wide, with slightly thickened revolute margins, broad midribs, 4-6 pairs of conspicuous primary veins and reticulate veiulets; their petioles broad, channeled, i' to nearly i' long; stipules lanceolate, acuminate, apiculate, 1'-^' long. Flowers on slender hairy pedicels, usually in 2 or 3-flowered clusters \' long; calyx-tube slender, hoary-tomentose on the outer surface, with a narrow obtusely lobed limb. Fruit : mature calyx-tube spindle-shaped, light chestnut-brown, slightly puberulous, deeply cleft at the apex, i'-|' long; akene more or less conspicuously sulcate on the back, covered with long white hairs; style often 4'-5' in length. A bushy tree, with aromatic leaves and branches sometimes 20°-30° high, with a trunk rarely more than 10' in diameter, slender rigid upright branches, and branch- lets clothed at first with pale silky pubescence, soon glabrous, rather bright brown and marked b}' occasional oblong light-colored lenticels during their first year, be- coming dark gray or brown and covered with conspicuous ring-like leaf-scars. Bark about ylg' thick, generally smooth, divided by narrow shallow fissures and broken into small square persistent red-brown scales. Wood light red-brown, with thin light brown sapwood of about 20 layers of annual growth. Distribution. Mountain ranges of the arid portions of western North America from western Nebraska to the northern slopes of the Siskiyou Mountains, Oregon, and to western Texas and northern New Mexico; common on the California coast ranges southward to the San Jacinto Mountains; on Santa Cruz Island, California, and on the mountains of Lower California. On the California coast ranges frequently with rather larger fruit and larger and proportionally broader often glabrous leaves (var. betuloides, Sarg.). 3. Cercocarpus ledifolius, Nutt. Leaves narrowly lanceolate, acute at the ends, apiculate, entire, with thick re- volute margins, coriaceous, reticulate-veined, usually puberulous while young, at \k^.^20 maturity dark green, lustrou^and glabrous on the upper surface and more or less coated with pale or rufous pubescence on the lower surface, resinous, ^'-1' long, and l'-^' wide, with broad thick midribs deeply grooved on the upper side, and obscure 508 TEEES OF NORTH AMERICA primary veins, persistent until the end of tlieir second summer; their petioles broad, about ^' long; stipules nearly triangular, Flo'wers solitary, sessile in the axils of the clustered leaves, |' long; calyx hoary-tomentose. Fruit: mature calyx-tube almost ^' long, nearly cylindrical, rather larger above than below, 10-ribbed, ob- scurely 10-angled, slightly cleft at the apex, hoary-tomentose; akene pointed at the ends, obscurely angled, chestnut-brown, ^' long, covered with long pale or tawny hairs; style 2'-3' long, generally contracted by 1 or 2 partial corkscrew twists. A resinous slightly aromatic tree, occasionally 40° high, with a short trunk some- times 2^° in diameter, stout spreading usually contorted branches forming a round compact head, and red-brown branchlets coated at first with pale pubescence, soon becoming glabrous, frequently covered with a glaucous bloom, silver gray or dark brown in their second year, and for many years marked by the conspicuous elevated leaf-scars. Bark red-brown, divided by deep broad furrows, and broken on the sur- face into thin persistent plate-like scales, becoming on old trunks 1' thick. Wood bright clear red or rich dark brown, with thin yellow sapwood of 15-20 layers of annual growth. Distribution. Dry gravelly arid slopes at elevations of 5000°-9000° above the sea; sometimes on almost precipitous cliffs and on rocky ridges as a densely branched contorted shrub, with linear revolute leaves, and smaller flowers and fruits (var. intricatus, M. E. Jones) ; mountain ranges of the interior region of the United States from western Wyoming to the western slopes of the Rocky Mountains of Montana, the Cceur d'Alene Mountains of Idaho, the Blue Mountains of Washington and Klamath County, Oregon, and southward through the Wasatch Mountains and the ranges of the Great Basin to the eastern slopes of the Sierra Nevada, the northern slopes of the San Bernardino Mountains, California, and to the mountains of northern New Mexico and Arizona; most abundant and of its largest size on the high foothill slopes of the mountain ranges of central Nevada at elevations of 6000°-8000°. 4. Ceroocarpus breviflorus, Gray. Leaves oblong-obovate to narrowly elliptic, acute or rounded and often apiculate at the apex, gradually narrowed from above the middle and acute at the base, their margins revolute, often undulate, and entire or dentate toward the apex, with few small straight or incurved apiculate teeth, when they unfold coated with hoary tomentum, and at maturity thick, gray-green on the upper surface, pale on the lower surface, covered with soft pale hairs most abundant on the under side of the midribs and primary veins, \'-V long and usually about \' wide; their petioles stout, tomen- tose, ultimately sometimes light red, and pubescent or nearly glabrous, \'-yq' long; stipules linear-lanceolate, tomentose, about half as long as the petioles. Flo'wers appearing from March to May and often again in August, nearly sessile, solitary or in pairs in the axils of the crowded leaves; calyx-tube slender, y&'~\' lo"g"> coated on the outer surface, like the short rounded lobes, with dense white tomentum. Fruit: mature calyx-tube stalked, spindle-shaped, light red-brown, pubescent above, to- mentose toward the base, deeply cleft at the apex, about \' long; akene nearly terete, covered with long white hairs; style I'-l^' long. A tree, 20°-25° high, with a long straight trunk som.etimes 6'-8' in diameter, erect rigid branches forming a narrow open or irregular head, and slender bright red-brown lustrous branchlets marked irregularly by large scattered pale lenticels, covered at first with a thick coat of hoary tomentum, villose or pubescent for two or three years and ultimately ashy gray or gray tinged with red, the spur-like lateral ROSACEA 509 Bark about i' branchlets much roughened* by the ring-like scars of fallen leaves thick, divided by shallow fissures and broken on the surface into small light red brown scales. Distribution. In forests of Pines and Oaks on the dry ridges of the mountains of southern Arizona and Xew Mexico, and of western Texas, usually at elevations of about 5000° above the sea, and southward over the mountains of northern Mexico. 9. PRUNUS, B. & H. Plum and Cherry. Trees or shrubs, wdth bitter astringent properties, slender branchlets, marked by the usually small elevated horizontal leaf-scars, with 2 or 3 fibro-vascular bundle- scars, and small scaly buds, their scales imbricated in many rows, those of the inner rows accrescent and often colored. Leaves conduplicate or convolute in the bud, alter- nate, simple, usually serrate, petiolate, deciduous or persistent; stipules free from the petiole, usually lanceolate and glandular, often minute, early deciduous. Flowers in axillary umbels or corymbs, or in terminal or axillary racemes, appearing from separate buds before, with, or later than the leaves, or on leafy branches; cal}^ 5-lobed, the lobes imbricated in the bud; disk thin, adnate to the calyx-tube, gland- ular, often colored; petals 5, white, deciduous; stamens usually 15-20, inserted with the petals in 3 rows, those of the outer row 10, opposite the petals, those of the next row alternate with them and with those of the inner row, sometimes 30 in 3 rows; filaments filiform, free, incurved in the bud; anthers oval, attached on the back; ovary inserted in the bottom of the calyx-tube, 1-celled; style terminal, dilated at the apex into a truncate stigma; ovules 2, suspended; raphe ventral, the micropyle superior. Fruit a 1-seeded drupe; flesh thick and pulpy or dry and coriaceous; stone bony, smooth, rugose, or pitted, compressed, indehiscent. Seed filling the cavity of the nut, suspended; seed-coat thin, membranaceous, pale brown; cotyledons thick and fleshy; radicle superior. Prunus with about one hundred and twenty species is generally distributed over the temperate region of the northern hemisphere, and is abundant in North Amer- ica, eastern Asia, western and central Asia and central Europe, ranging southward in the New World into tropical America, and to southern Asia in the Old World. Of the twenty-five or thirty species which occur in the United States, eighteen are 510 TREES OF NORTH AMERICA arborescent in habit. Several of the species bear fruits which are important articles of human food ; many contain in the seeds and leaves hydrocyanic acid, to which is due their peculiar odor, and the fruit of some of the species is used to Havor cor- dials. 'The wood of Prunus is close-grained, solid, and durable, and a few of the species .are important timber-trees. Prunus is the classical name of the Plum-tree. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. 1. Flowers in sessile axillary umbels ; fruit often slightly 2-lobed by a ventral groove. Plums. Leaves conduplicate in the bud. Fruit red or orange-colored, usually destitute of bloom, i'-l' in diameter. Leaves oblong to obovate, broad, thick, and dull. Calyx-lobes glandular, glabrous on the inner surface ; stone compressed ; petioles biglandular. 1. P. nigra (A). Calyx-lobes entire, pubescent on the inner surface ; stone turgid ; petioles usu- ally without glands. 2. P. Americana (A, C, F). Leaves ovate-lanceolate to lanceolate, narrow, thin, and lustrous ; petioles glandu- lar ; stone turgid. Calyx-lobes pubescent ; leaves ovate-lanceolate. 3. P. hortulana (A, C). Calyx-lobes glabrous ; leaves lanceolate to oblong-lanceolate. 4. P. angustifolia (C). Fruit blue, covered with a glaucous bloom, l'-^' in diameter ; leaves lanceolate to oblong-ovate; petioles usually without glands. 5. P. Alleghaniensis (A). Leaves convolute in the bud. Fruit often 1' or more in diameter, red or yellow, nearly destitute of bloom; leaves broadly ovate to orbicular ; petioles mostly without glands. 6. P. subcordata (G). Fniit i;' in diameter or less. Fruit dark blue or black, covered with a glaucous bloom ; leaves ovate-lanceolate to oblong ; petioles mostly without glands. 7. P. umbellata (C). Fruit yellow, red, blue, or black, covered with a glaucous bloom ; leaves oblong to obovate ; petioles conspicuously biglandular. 8. P. tarda (C). 2. Flowers in axillary umbels or corymbs ; fruit globose, ^' in diameter or less, bright red and lustrous ; leaves conduplicate in the bud. Bird Cherries. Leaves usually oblong-lanceolate, acuminate or rarely acute. 9. P. Pennsylvanica (A, B, F). Leaves usually oblong-obovate and obtuse. 10. P. emarginata (B, F, G). 3. Flowers in terminal racemes on leafy branches of the year ; fruit globose ; leaves con- duplicate in the bud. Wild Cherries. Calyx-lobes deciduous from the fruit ; leaves broadly oval or oblong-obovate, usually abruptly acuminate. 11. P. demissa (B, F, G). Calyx-lobes persistent on the fruit. Leaves oblong or lanceolate-oblong, usually narrowly cuneate. 12. P. serotina (A, C, E, H). Leaves ovate-oblong or elliptic. 13. P. Alabamensis (C). Leaves obovate, oval or elliptic, clothed below with pale or rufous matted hairs. 14. P. australis (C). 4. Flowers racemose in the axils of persistent leaves of the previous year ; fruit globose or slightly 2-lobed ; leaves conduplicate in the bud. Cherry Laurels. Calyx-lobes rounded, with undulate margins ; stone broadly ovate, cylindrical ; leaves entire or rarely remotely spinulose-serrate. 15. P. Caroliniana (C). \ ROSACEA 511 Calyx-lobes acute, with laciniate marg-ins ; stone depressed-globose ; leaves entire. 16. P. sphaerocarpa (D). Calyx-lobes acute, entire ; stone ovate, slightly compressed. Leaves coarsely spinulose-toothed. 17. P. ilicifolia (G). Leaves entire or occasionally remotely and minutely dentate. 18. P. integrifolia (G). 1. Flowers in axillary umbels; fruit usually more than \' in diameter. Plums. 1. Prunus nigra, Ait. Red Plum. Canada Plum. Leaves obloug-ovate to obovate, abruptly contracted at the apex into long narrow points, wedge-shaped, truncate or slightly heart-shaped at the base, and doubly crenulate-serrate, with small dark glandular teeth, when they unfold faintly tinged with red and pubescent on the under surface or glabrous with the exception of con- spicuous tufts of slender white or rufous hairs in the axils of the primary veins, and at maturity thick and firm, dull dark green on the upper, pale on the lower surface, 3'-5' long and l^'-3' wide, with conspicuous pale midribs and slender veins; their peti- oles stout, \'-V long, and biglandular at the apex, with 2 large dark glands; stipules lanceolate or on vigorous shoots often 3-5-lobed, glandular-serrate, \' long, early deciduous. Flo"wers appearing in early spring with or before the leaves, \' in diam- eter, on slender glabrous dark red pedicels, ^'-f long, in 3 or 4-flowered umbels; calyx-tube broadly obconic, dark red on the outer, bright red on the inner surface, the lobes narrow, acute, glandular, glabrous or occasionally pubescent on the outer surface, reflexed after the flowers open; petals broadly ovate, rounded at the apex, more or less erose on the margins, contracted at the base into short claws, white, turning pink in fading. Fruit ripening from the middle to the end of August, oblong-c oval, I'-l^' long, with a tough thick orange-red skin nearly destitute of bloom, yellow rather austere flesh, and an oval compressed stone, 1' long, |' wide, thick-walled, acutely ridged on the ventral and slightly grooved on the dorsal suture. A tree, 20°-30° high, with a trunk sometimes 6'-Q' in diameter, divided usually o°-6° from the ground into a number of stout upright branches forming a narrow rigid head, stout slightly zigzag branchlets marked by numerous pale excrescences, 512 TREES OF NORTH AMERICA bright green, glabrous or puberulous at first, and dark brown tinged with red in their second season, and stout spiny lateral spur-like secondary branchlets. "Winter-buds acuminate, Y~'k' ^^ng, with chestnut-brown triangular scales pale and scarious on the margins. Bark about 1' thick, light gray-brown, with a smooth outer layer exfoli- ating in large thick plates of several papery layers, and in falling exposing the darker slightly fissured scaly inner bark. Wood heavy, hard, strong, close-grained, rich bright red-brown, witii thin lighter colored sapwood. Distribution. Neighborhood of streams in rich alluvial soil, or on low limestone hills in open glades, or wood borders; Newfoundland, through the valley of the St. Lawrence River to the valleys of the Rainy and Assiniboine rivers, the southern shores of Lake Manitoba, and southeastern Minnesota. Often cultivated in Canadian gardens and occasionally in those of the northern states as a fruit-tree or for the beauty of its flowers, and now sparingly naturalized along the northern borders of the United States. Varieties are propagated by pomo- logists. 2. Prunus Americana, Marsh. "Wild Plum. Leaves oval or slightly obovate, acuminate, narrowed and occasionally rounded at the base, and sharply and often doubly serrate, when they unfold nearly glabrous or furnished below with conspicuous axillary tufts of pale hairs, and at maturity thick fl^.M-2.3 and firm, more or less rugose, dark green on the upper, pale and glabrous on the lower surface, 3'^' long, and 1^' wide, with slender midribs and primary veins; their petioles slender, ^'-f long, usually without glands; stipules linear, often 3-lobed, sharply serrate, ^'— |' long, early deciduous. Flowers appearing in early spring when the leaves are nearly fully grown, V in diameter, bad-smelling, on slender gla- brous green pedicels ^-f long, in 2-5-flowered umbels; calyx-tube narrowly obconic, light red, glabrous or puberulous, green on the inside, the lobes acuminate, entire, reflexed after the flowers open, slightly pubescent on the outer, pilose on the inner surface; petals rounded and irregularly laciniate at the apex, contracted below into long narrow claws, bright red at the base, 1' long and \' wide. Fruit ripening in June at the south and from the end of August to early October at the north, subglo- bose or rarely slightly elongated, usually rather less than V in diameter, in ripening ROSACEA 513 turning from green to orange, often with a red cheek, bright red when fully ripe, destitute of bloom and more or less conspicuously marked by pale spots, with tough thick acerb skin, bright yellow succulent rather juicy acid flesh, and an oval slightly rugose stone pointed at the apex, more or less contracted at the base, f '-f long and often as thick as broad, slightly and acutely ridged on the ventral and obscurely grooved on the dorsal suture. A tree, 20°-35° high, with a trunk rarely exceeding a foot in diameter, and divided usually 4°-5° from the ground into many spreading branches often pendulous at the ends and forming a broad graceful head, branchlets at first light green, glabrous, puberulous or coated with dense pale tomentum, light orange-brown during their first winter, becoming darker and often tinged with red and marked by minute cir- cular raised lenticels, and long slender remote sometimes spinescent lateral branch- lets. "Winter-buds acute, Y-\' long, with chestnut-brown scales more or less erose on the margins, the inner scales when fully grown foliaceous, ^' long, oblong, acute, remotely serrate, with two narrow acuminate lateral lobes. Bark about ^' thick, dark brown tinged with red, the outer layer separating into large thin persistent plates. Wood heavy, hard, close-grained, strong, dark rich brown tinged with red, with thin lighter colored sapwood. The fruit is sometimes used in the preparation of jellies and preserves, and is eaten raw or cooked. Distribution. In the middle and northern states in rich soil, growing along the borders of streams and swamps, and frequently forming thickets of considerable extent; in the south Atlantic states often in river swamps; west of the Mississippi River on bottom-lands and dry limestone uplands; middle and northern New Jersey, and central New York to Nebraska; the valley of the upper Missouri River in Mon- tana, the eastern slopes of the Rocky Mountains of Colorado, and southward to the Chattahoochee region of western Florida, the valley of the Rio Grande in southern New Mexico, and the mountains of Northern New iMexico; most abundant and of its largest size in southern Arkansas and eastern Texas. West of the Mississippi River from Missouri to Texas the common form (var. lanata, Sudw.) is pubescent through the season on the under surface of the leaves, the calyx-lobes, pedicels, and branchlets, and should perhaps be considered a distinct species. Often cultivated in the eastern states as an ornamental or fruit tree. Numerous varieties are propagated by pomologists. 3. Prunus liortulana, Bailey. "Wild Plum. Leaves ovate-lanceolate, contracted at the apex into long slender points, wedge- shaped or more or less rounded at the narrow base, and finely serrate, with incurved lanceolate glandular teeth, when they unfold pilose, with slender white hairs, and at maturity glabrous above, pilose below in the axils of the primary veins and along the midribs, thin but firm, dark green and lustrous on the upper, paler on the lower surface, 4'-6' long, I'-l^' wide, with broad conspicuous orange-colored midribs, primary veins connected near the margins of the leaf, and prominent reticulate veinlets; their petioles slender, orange-colored, I'-l^' long and furnished above the middle with numerous scattered dark glands; stipules lanceolate-acuminate, gland- ular-serrate, early deciduous. Flo"wers appearing in April or early in May when the leaves are about one third grown, f'-l' in diameter, on slender puberulous pedi- cels ^' long, in 2-4-flowered umbels; calyx-tube narrowly obconic, puberulous on the outer surface, the lobes ovate, acute or rounded at the apex, glandular-serrate, 514 TREES OF NORTH AMERICA pubescent on the outer, pubescent or tomentose on the inner surface, reflexed after the unfolding of the narrowly obovate petals rounded and occasionally emarginate at the apex, contracted below into long narrow claws, entire, erose, or occasionally iCr.^2^ serrate, and pure white or often marked with orange toward the base. Fruit ripen- ing in September and October, on stout stems, globose to short-oblong, f -1' in diam- eter, with thick acid deep red or sometimes yellow skin, hard austere thin flesh, and a turgid stone f'-f long, compressed at the ends, abrnptly short-pointed at the apex, conspicuously ridge-margined on the ventral and broadly and deeply grooved on the dorsal suture, thick-walled, rugbse, and deeply pitted. A tree, 20°-30° high, with a slender often inclining trunk, frequently 6'-6' or occasionally 10'-12' in diameter, dividing usually several feet above the ground into stout spreading branches, and stout rigid branchlets marked by minute pale lenti- cels, glabrous or slightly puberulous during their first summer, rather dark brown, and usually unarmed or on vigorous trees armed with stout spinescent lateral branchlets; or often a shrub, with many stems forming thicket-like clumps. Winter- ROSACEiE 515 buds minute, obtuse, with chestnut-brown scales slightly ciliate on the margins, those of the inner ranks becoming oblong-lanceolate, acute, glandular- serrate, some- times ^' long. Bark thin, dark brown, separating into large thin persistent plates, and displaying the light brown inner layers. Distribution. Low banks of streams in rich moist soil; Maryland and Virginia to southeastern Kansas and Texas; sometimes considered a natural hybrid between Prunus Americana and Prunus angustifolia. Prunus hortidana, var. Miyieri, Bailey (f. 425), with thicker rather duller some- what obovate and more coarsely serrate leaves, is an Illinois and Missouri form or perhaps a distinct species related to Prunus Americana. Often cultivated by pomologists in many forms of garden origin. 4. Prunus angustifolia. Marsh. Chickasa-w Plum. Leaves lanceolate to oblong-lanceolate, pointed at the ends, apiculate at the apex, and sharply serrate, with minute glandular teeth, glabrous or at first sometimes furnished with axillary tufts of long pale hairs, bright green and lustrous on the upper, paler and rather dull on the lower surface, l'-2' long and ^-f wide; their petioles slender, glabrous or puberulous, biglandular near the apex, with 2 conspic- uous red glands, bright red, \'—\' long; stipules linear or lobed, glandular-serrate, y long. Flo^wers appearing before the leaves from the beginning of March at the south to the middle of April at the north, \' across, on slender glabrous pedicels \'-\' long, in 2— 4-flowered umbels; calyx-tube carapanulate, glabrous, the lobes oblong, obtuse, ciliate on the margins, with slender hairs, pale-pubescent on the inner sur- face, reflexed at maturity; petals obovate, rounded at the apex, contracted at the base into short broad claws, white or creamy white. Fruit ripening between the end of May and the end of July, globose or subglobose, about \' in diameter, bright red, rather lustrous, nearly destitute of bloom, with a thin skin, juicy subacid flesh, and a turgid rugose stone compressed at the ends, nearly 1' long, more or less thick- margined on the ventral and grooved on the dorsal suture. A tree, 15°-25° high, with a trunk rarely exceeding 8' in diameter, slender spread- ing branches, and bright red and lustrous branchlets glabrous or covered at first with short caducous hairs, becoming in their second year dull, darker and often brown, marked with occasional horizontal orange-colored lenticels, and frequently armed 516 TREES OF NORTH AMERICA with long thin spinescent lateral brauchlets; often spreading into thickets. Winter- buds acuminate, ^q' long, with chestnut-brown scales. Bark about |' thick, dark reddish brown, and slightly furrowed, the surface broken into long thick appressed scales. "Wood heavy, although rather soft, not strong, light brown or red, with lighter colored sapwood. The fruit is often sold in the markets of the middle and southern states. Distribution. Widely naturalized especially in the south Atlantic and Gulf states from southern Delaware and Kentucky to central Florida and eastern Texas, occupying the margins of fields and other waste places near human habitations usu- ally in rich soil; its origin still uncertain. A number of varieties derived from this species are cultivated as fruit-trees in the southern states. 5. Prunus Alleghaniensis, Port. Sloe. Leaves lanceolate to oblong-ovate, often long-pointed, fiuely and sharply serrate, with glandular teeth, and furnished at the base with 2 large rather conspicuous glands, when they unfold covered with soft pubescence, and at maturity puberulous on the upper and glabrous with the exception of a few hairs in the axils of the veins, or covered, especially along the broad midribs and conspicuous veins, with rufous pubescence on the lower surface, rather thick and firm in texture, dark green above and paler below, 2'-3^' long and |'-1^' wide; their petioles slender, grooved, pubescent or puberulous, \'-^' long. Flowers appearing in May with the unfold- ing of the leaves, ^' in diameter, on slender puberulous pedicels ^'-f long, in 2-4- flowered umbels; calyx-tube narrowly obconie, pubescent or puberulous on the outer surface, the lobes ovate-oblong, rounded at the apex, scarious on the margins, and coated with pale tomentum on the inner surface; petals rounded at the apex, contracted at the base into short claws, turning pink in fading. Fruit ripening the middle of August, on stout puberulous pedicels, subglobose or slightly oval to obo- vate, y-f in diameter, with thick rather tough dark reddish purple skin covered with a glaucous bloom, yellow juicy austere flesh, and a thin-walled turgid stone two thirds as thick as broad, \'-^' long, pointed at the ends, ridged on the ventral, and slightly grooved on the dorsal suture. A slender tree, occasionally 18°-20° high, with a trunk sometimes 6'-8' in diameter. ROSACEA 517 dividing into numerous erect rigid branches, and branchlets at first coated with pale caducous pubescence, becoming dark red and rather lustrous in their first winter, and ultimately nearly black, and unarmed, or sometimes armed with stout spinescent lateral spur-like branchlets. Winter-budS acuminate or obtuse, Jg' long, their inner scales accrescent, scarious, oblong, acute, |' long, bright red at the apex. Bark 1' thick, dark brown, fissured and broken on the surface into thin persistent scales. Wood heavy, hard, close-grained, brown tinged with red, with thin pale sapwood of 10-12 layers of annual growth. The fruit is made into preserves, jellies, and jams. Distribution. Low moist soil, often forming shrubby thickets sometimes of con- siderable extent, and dry ridges; slopes of Tussey's Mountain in the northwestern part of Huntingdon County, and over the main range of the Alleghany Mountains into Clearfield and Elk counties, Pennsylvania; of its largest size on limestone bluffs south of the Little Juniata River, 6. Prunus subcordata, Benth. Wild Plum. Leaves broadly ovate or orbicular, usually cordate, sometimes truncate or rarely cuneate at the base, and sharply and often doubly serrate, when they unfold puberu- lous on the upper and pubescent on the lower surface, and at maturity glabrous or pubernlous below, l'-3' long, ^-2' broad, slightly coriaceous, dark green above and pale below, with broad midribs and conspicuous veins, northward turning brilliant scarlet and orange or red and yellow in the autumn before falling; their petioles slen- der, usually with glands, ^'-f long; stipules lanceolate, acute, glandular-serrate. Flowers appearing before the leaves in March and April, |' in diameter, on slender glabrous or pubescent pedicels \'-h' long, in 2-4-flowered umbels; calyx-tube cam- panulate, glabrous or pubernlous, the lobes oblong-obovate, rounded at the apex, pu- bescent on the outer, more or less clothed with pale hairs on the inner surface, half as long as the obovate white petals rounded above and narrowed below into short claws. Fruit ripening in August and September, on stout pedicels ^'-f long, oblong, ^'-1^' long, with dark red or sometimes bright yellow skin, more or less subacid flesh, and a flattened or turgid stone, acute at the ends, ^-1' long, narrowly wing-margined on the ventral, conspicuously grooved on the dorsal suture. 518 TREES OF NORTH AMERICA A tree, 20°-25° high, with a trunk sometimes a foot in diameter, dividing 6°-8° from the ground into stout almost horizontal branches, and glabrous or pubescent bright red branchlets marked by occasiohal minute pale lentieels, becoming darker red or purple in their second year, and ultimately dark brown or ashy gray; or often a bush, with stout ascending stems 10°-12° tall, or a low much-branched shrub. Winter-buds acute, ^ long, with chestnut-brown scales, scarious on the margins, those of the inner rows ^ lo»g at maturity, oblong, acute, and generally bright red. Bark about \' thick, gray-brown, deeply fissured, and divided into long thick plates broken on the surface into minute persistent scales. Wood heavy, hard, close- grained, pale brown, with thin lighter colored sapwood of 5 or C layers of annual growth. Distribution. Dry rocky hills and open woods usually in the neighborhood of streams, sometimes forming thickets of considerable extent; southern Oregon to central California in the region west of the Cascade and Sierra Nevada Mountains, and as a low shrub in the Klamath Lake region east of the Cascade Mountains; com- mon in central California and on the foothills of the western slopes of the Sierra Nevada; of its largest size on the borders of small streams in southern Oregon and northern California; at high elevations and in arid regions usually a low shrub pro- ducing sparingly small acid fruit. 7. Prunus umbellata. Ell. Sloe. Black Sloe. Leaves obovate-lanceolate to oblong, acute at the ends or sometimes rounded or slightly cordate at the base, finely and sharply serrate, with remote incurved gland- ular teeth, and usually furnished with 2 large dark glands at the base, when they [1^.^^4-2.9 unfold bright bronze-green, with red margins, midribs, and petioles, glabrous above and pubescent or glabrous below with the exception of a few hairs along the promi- nent orange-colored midribs and primary veins, and at maturity membranaceous, dark green above, paler below, 2'-2^' long and I'-l^ wide; their petioles stout, glabrous or pubescent, about ^' long; stipules lanceolate, setaceous, glandular-ser- rate, j-^' long. FloTvers opening in March and April before the appearance of the leaves, f in diameter, on slender glabrous pedicels l' long, in 3 or 4-fiowered umbels; calyx-tube broadly obconic, glabrous or puberulous, the lobes sometimes slightly clavate at the acute red apex, scarious on the margins, and hoary-tomentose ROSACEA 519 on the inner surface ; petals linear, orbicular, contracted at the base into short claws. Fruit ripening from July to September, on slender pedicels ^' to nearly 1' long, globose, without a basal depression, about ^' in diameter, with a tough thick black skin covered with a glaucous bloom, thick acid flesh, and a flattened stone, with thin brittle walls, ^' long, j-j-q' wide and half as thick, acute at the ends, slightly rugose, conspicuously ridged on the ventral, and slightly grooved on the dorsal suture. A tree, sometimes 15°-20° high, with a short often crooked or inclining trunk 6'-10' in diameter, slender unarmed branches forming a wide compact flat-topped head, and slender branchlets more or less densely coated at first with pale pubes- cence, soon becoming glabrous, lustrous, and bright red, and in their second year dark dull brown and marked by occasional orange-colored oblong lenticels; or frequently a low shrub. Winter-buds about ^Ig' long, with acute chestnut-brown apiculate scales, those of the inner rows at maturity \' long and red at the apex. Bark 1' thick, dark brown, separating into small appressed persistent scales. Wood heavy, hard, close-grained, dark reddish brown, with thick lighter colored sapwood of about 30 layers of annual growth. The fruit is used in large quantities in making jellies and jams. Distribution. Sandy bottom-lands and along the borders of the forest of Long- leaved Pine; South Carolina to Mosquito Inlet, Florida, usually in the neighborhood of the coast, and from Tampa Bay to western Louisiana and southern Arkansas. Variable in the amount of its pubescence and slightly variable in the shape of the fruit, and passing into Prunus umbellata, var. injucunda, Sarg. A small tree, with branchlets at first hoary-tomentose, becoming pubescent and in their second season puberulous, villose pedicels, calyx, and ovary, leaves more or less tomentose below, and subglobose to short-oblong fruit. P^.^c^G Distribution. Base of Stone Mountain and Little Stone Mountain, De Kalb County, central Georgia. 8. Prunus tarda, Sarg. Sloe. Leaves oblong or occasionally somewhat obovate, acute or acuminate and short- pointed at the apex, gradually narrowed and rounded or cuneate at the base, finely 520 TREES OF NORTH AMERICA serrate, with straight or incurved teeth tipped with dark minute persistent glands, when they unfold glabrous or rarely scabrous or puberulous above and cinereo- tomentose below, and at maturity thick and firm, dark yellow-green and glabrous on the upper surface, pale and pubescent or puberulous on the lower surface, partic- ularly along the prominent light yellow midribs and thin primary veins, l^'-3' long, f'-l^' wide; their petioles stout, tomentose or ultimately pubescent, y-^' long, glandular at the apex, with 2 large round stalked dark glands, or often eglandular; stipules acicular, often bright red, about ^' long. Flowers appearing early in April with or before the leaves, about |' in diameter, on slender glabrous pedicels, in 2 or 3-flowered umbels; calyx-tube narrowly obconic, glabrous toward the base, villose above, the lobes acute, entire, villose on the outer surface, hoary-tomentose on the inner surface; petals oblong-obovate, gradually contracted below into short claws. Fruit ripening late in October or early in November, on stout rigid pedicels, short- oblong to subglobose, ^'-^' long; clear bright yellow on some trees, bright red on others, and on others purple, dark blue, or black, with tough thick skin, thick very acid flesh firmly attached to the ovoid more or less compressed very rugose stone obscurely ridged on the ventral and slightly grooved on the dorsal suture, acute and apiculate at the apex, rounded at the base. A tree, 20°-25° high, with a tall trunk 18'-20' in diameter, wide-spreading branches forming an open symmetrical head, and slender branchlets marked by small scattered dark lenticels, light-green and hoary-tomentose when they first appear, becoming glabrous, light red-brown and lustrous during their first summer and darker at the end of the second year. Winter-buds narrow, acute, the color of the branchlets, ^e'"!' long. Bark ^'— |' thick, light brown tinged with red, and divided by shallow interrupted fissures into flat ridges broken on the surface into small loose plate-like scales. Distribution. Glades and open woods in the neighborhood of Marshall, Texas, to western Louisiana and southern Arkansas. ROSACEA 521 2. Floioers in axillary umbels or corymbs; fruit \' in diameter or less. Bird Cherries. 9. Prunus Pennsylvanica, L. Wild Red Cherry. Bird Cherry. Leaves oblong-lanceolate, sometimes slightly falcate, acuminate or rarely acute, and finely and sharply serrate, with incurved teeth often tipped with minute glands, when they unfold bronze-green, pilose below and slightly viscid, soon becoming green and glabrous, and at maturity bright and lustrous on the upper, rather paler on the lower surface, 3'-4^' long and f -1^' wide, turning bright clear yellow some time before falling in the autumn; their petioles slender, glabrous or slightly pilose, ^'-1' long, and often glandular above the middle; stipules acuminate, glandular-ser- rate, early deciduous. Flowers appearing in early May when the leaves are about half grown, or at the extreme north and at high elevations as late as the 1st of July, ^' in diameter, on slender pedicels nearly 1' long, in 4 or 5-flowered umbels or corymbs ; calyx-tube broadly obconic, glabrous, marked in the mouth of the throat by a con- spicuous light orange-colored band, the lobes obtuse, red at the apex, and reflexed after the flowers open; petals ^' long, nearly orbicular, contracted at the base into |K-,.ife52 short claws, creamy white. Fruit ripening from the 1st of July to the 1st of Sep- tember, globose, \' in diameter, with a thick light red skin, thin sour flesh, and an oblong thin-walled slightly compressed stone, pointed at the apex, rounded at the base, about ^^' long, and ridged on the ventral suture. A tree, with bitter aromatic bark and leaves, 30°^0° high, with a trunk often 18'- 20' in diameter, regular slender horizontal branches forming a narrow head usually more or less rounded at the summit, and slender branchlets light red and sometimes slightly puberulous at first, soon glabrous, bright red, lustrous and covered with pale raised lenticels in their first winter, and developing in their second year short thick spur-like lateral branchlets and then covered with dull red bark marked by bright orange-colored lenticels, the outer coat easily separable from the brilliant green inner bark; at the extreme northern and western limits of its range often a low shrub. Bark of young stems and of the branches smooth and thin, bright reddish brown, becoming on old trunks ^'-^^ thick, and separating horizontally into broad persistent papery dark red-brown plates marked by irregular horizontal bands of orange-colored lenticels and broken into minute persistent scales. "Wood light, soft, 522 TREES OF NORTH AMERICA close-grained, light brown, with thin yellow sapwood. The fruit is often used domes- tically and in the preparation of cough mixtures. Distribution. Newfoundland to the shores of Hudson's Bay, and westward in British America to the eastern slopes of the coast range of British Columbia in the valley of the Frazer River, and southward through the northern states to Pennsyl- vania, central Michigan, northern Illinois, central Iowa, and to the high mountains of North Carolina and Tennessee, and on the eastern slopes of the Rocky Mountains of Colorado; common in all the forest regions of the extreme northern states, grow- ing in moist rather rich soil ; often occupying to the exclusion of other trees large areas cleared by fire of the original forest-covering; common and attaining its largest size on the western slopes of the Big Smoky Mountains in Tennessee. 10. Prunus emarginata, Walp. Wild Cherry. Leaves oblong^-obovate to oblanceolate, rounded and usuallv obtuse or sometimes acute at the apex, cuneate and furnished at the base with 1 or 2 and sometimes 3 or 4 large dark glands, and serrate, with minute subulate glandular teeth, when they unfold puberulous or pubescent on the lower surface and slightly viscid, and at maturity glabrous or pubescent below (var. villosa, Sudw.), V-3' long, ^-1^' wide, dark green above and paler below; their petioles short, stout, usually pubescent; stipules lanceolate, acuminate, glandular-serrate, deciduous. Flo"wers appearing when the leaves are about half grown, at the end of April at the level of the ocean or as late as the end of June at high elevations, |'-^ in diameter, on slender pedicels from the axils of foliaceous glabrous glandular-serrate bracts, in 6-12-flowered glabrous or pubescent corymbs I'-l^' long; calyx-tube obconic, glabrous or puberu- lous, bright orange-colored in the throat, the lobes short, rounded, emarginate, or slightly cleft at the apex, sometimes slightly glandular on the margins, reflexed after the flowers open ; petals obovate, rounded or emarginate at the apex, contracted below into short claws, white faintly tinged with green. Fruit ripening from June to August, on slender pedicels, in long-stalked corymbs often 2' long, globose, Y~¥ in diameter, more or less translucent, with a thick skin bright red at first when fully grown, becoming darker and almost black, thin bitter astringent flesh, and an ovoid turgid stone abdut ^' long, pointed and compressed at the ends, with thick brittle ROSACEJE 523 slightly pitted walls, ridged and prominently grooved on the ventral and rounded and slightly grooved on the dorsal suture. A tree, with exceedingly bitter bark and leaves, occasionally 30°-40° high, with a trunk 12'-14:' in diameter, slender rather upright branches forming a symmetrical oblong head, and slender flexible branchlets coated at first with pale pubescence, dark red-brown during their first winter, bright red, conspicuously marked by large pale lenticels in their second season, and furnished with short lateral branchlets; frequently a shrub, with spreading stems 3°-10° tall. Winter-buds acute, i' long, with chestnut-brown scales often slightly scarious on the margins, those of the inner ranks becoming acuminate, glandular-serrate above the middle, scarious, and ^' long, with bright red tips. Bark about \' thick, with a generally smooth dark brown sur- face marked by horizontal light gray interrupted bands and by rows of oblong orange-colored lenticels. Wood close-grained, soft and brittle, brown streaked with green, with paler sapwood of 8-10 layers of annual growth. Distribution. Usually near the banks of streams in low rich soil, or less com- monly on dry hillsides; valley of the upper Jocko River, Montana, on the mountain ranges of Idaho and Washington and of southern British Columbia to Vancouver Island, and southward on the coast ranges to the neighborhood of the bay of San Francisco, on the western slopes of the Sierra Nevada up to elevations of 5000°- 6000° above the sea to the head of Kern Kiver, on the Santa Lucia, San Rafael, and San Bernardino Mountains, California, and to the Washoe Mountains, Nevada, and the San Francisco peaks, Arizona; of its largest size on Vancouver Island, in west- ern Oregon and Washington, and on the Santa Lucia Mountains; on the coast ranges of middle California and on the Sierra Nevada commonly a shrub o°-8° high. 3. Flowers in terminal racemes on leafy branches of the year. Wild Cherries. 11. Prunus demissa, Walp. Choke Cherry. (Prunus Virginiajia, Silva N. Am. iv. 41, in part. ^ Leaves broadly oval to oblong-obovate, acute, acuminate, or abruptly short- pointed at the apex, subcordate, rounded, or rarely wedge-shaped at the base, and finely serrate, with slender callous teeth, when they unfold glabrous or pubescent and occasionally furnished with axillary tufts of pale hairs, and at maturity thick and firm to subcoriaceous, dark green, lustrous and glabrous above, pale or glaucous and glabrous or rarely puberulous below, 2'-4' long, l'-2' wide, with stout yellow midribs, and thin remote primary veins united at some distance from the margins, turning yellow in the autumn before falling; their petioles slender, glabrous or rarely villose, glandular near the apex, with 2 or several glands \'-^' long. Flowers opening from April at the south to the middle of June at the north, \'-\' in diam- eter, on slender glabrous or puberulous pedicels in the axils of scarious caducous bracts, in slender many-flowered erect or nodding racemes 3'-6' long; calyx-tube cup-shaped, glabrous or rarely puberulous, the lobes short, broad, obtuse, laciniate or more or less glandular on the margins, deciduous from the fruit; petals orbicular, contracted below into short claws, pure white. Fruit Y-\' in diameter, globose or occasionally somewhat elongated, nearly black, with a thick lustrous skin, dark juicy slightly astringent flesh of agreeable flavor, and an oblong-ovate stone, about \' long, acute at the apex, broadly ridged on the ventral and slightly grooved on the dorsal suture. 524 TREES OF NORTH AMERICA A tree, with strong-scented bark and leaves, rarely 30°-35° high, with a short often crooked or inclining trunk sometimes a foot in diameter, small erect or hori- zontal branches, and stout branchlets light brown or bronze-green and glabrous, puberulous, or sometimes pubescent at first, becoming light brown or brown tinged with red and marked by large oblong lenticels during their first winter, and darker brown in their second year; more often a low shrub. Winter-buds acute or obtuse, with pale chestnut-brown scales more or less scarious on the margins and rounded at the apex, those of the inner rank becoming lanceolate or ligulate, sharply and often glandular-serrate, and ^'-V long. Bark about ^' thick, slightly and irregularly fissured, broken on the surface into small persistent dark red-brown scales, and often marked by irregular pale excrescences. Wood heavy, hard, close-grained, although not strong, light brown, with thick lighter colored sap wood of 15-20 layers of annual growth. Distribution. Low valleys and slopes of mountain ranges, northern British Columbia over the mountain ranges of western North America and eastward to western Nebraska and Kansas. 12. Prunus serotina, Ehrh. Wild Black Cherry. Rum Cherry. Leaves oval, oblong to lanceolate-oblong, gradually or sometimes abruptly acumi- nate or rarely rounded at the apex, cuneate or occasionally rounded at the base, finely serrate, with appressed incurved callous teeth, and furnished at the very base with 1 or more dark red conspicuous glands, when they unfold slightly hairy below on the midribs and often bronze-green, and at maturity glabrous, thick and firm, subcoriaceous, dark green and very lustrous above, paler below, 2'-5' long, I'-l^' wide, with thin conspicuous midribs and slender veins, in the autumn turning clear bright yellow before falling; their petioles slender, ^'-f long; stipules lanceolate, acuminate, glandular-serrate, ^-f in length, early deciduous. Flowers appearing when the leaves are about half grown, from the end of March in Texas to the first week of June in the valley of the St. Lawrence River, ^ i" diameter, on slender glabrous or puberulous pedicels from the axils of minute scarious caducous bracts, in erect or ultimately spreading narrow many-flowered racemes 4^-6' long; calyx- tube cup-shaped, glabrous or puberulous, the lobes short, ovate-oblong, obtuse. ROSACEA 525 slightly laciuiate on the margins, reflexed after the flowers open, persistent on the ripe fruit; petals broadly obovate, pure white. Fruit ripening from June to Octo- ber, in drooping racemes, depressed-globose, slightly lobed, ^'-^^ in diameter, dark red when fully grown, almost black when ripe, with a thin skin, dark purple juicy, flesh of a pleasant vinous flavor, and an oblong-obovate thin- walled stone, abont 1' long, acute at the apex, gradually narrowed at the base, broadly ridged on the ventral and acute on the dorsal suture. A tree, with bitter aromatic bark and leaves, sometimes 100° high, with a trunk 4°-5° in diameter, small horizontal branches forming a narrow oblong head, and slender rather rigid glabrous branchlets at first pale green or bronze color, soon be- coming bright red or dark brown tinged with red, red-brown or gray-brown and marked by minute pale lenticels during their first winter, and bright red the follow- ing year; usually much smaller and occasionally toward the northern limits of its range shrub-like in habit. Winter-buds obtuse, or on sterile shoots acute, with bright chestnut-brown broadly ovate scales keeled on the back and apiculate at the apex, those of the inner ranks becoming scarious at maturity, acuminate, and ^'-f' long. Bark ^'-f thick, broken by reticulated fissures into small irregular plates scaly on the surface, and dark red-brown, or near the Gulf coast light gray or nearly white. f^(,M3J "Wood light, strong, rather hard, close straight-grained, with a satiny surface, light brown or red, with thin yellow sapwood of 10-12 layers of annual growth; largely used in cabinet-making and the interior finish of houses. The bark, especially that of the branches and roots, yields hydrocyanic acid used in medicine as a tonic and sedative. The ripe fruit is used to flavor alcoholic liquors. Distribution. Nova Scotia westward through the Canadian provinces to the northern shore of Lake Superior, and southward through the eastern states to the shores of Matanzas Inlet and Tampa Bay, Florida, and westward to Dakota, eastern Nebraska and Kansas, the Indian Territory and eastern Texas; on the mountain ranges of western Texas, southern New Mexico and Arizona, and southward to Co- lombia and Peru; in the United States usually in rich moist soil; once very abimdant in all the Appalachian region, reaching its greatest size on the slopes of the high Alleghany Mountains from west Virginia to Georgia and Alabama; sometimes on low sandy soil, and often in New England on rocky cliffs within reach of the spray 526 TREES OF NORTH AMERICA of the ocean; not common in the coast region of the southern states; in the south- west only in the bottoms of mountain canons at elevations of 500O°-70OO° above the level of the sea. 13. Prunus Alabamensis, Mohr. Wild Cherry. Leaves oval, broadly ovate, or occasionally obovate, acute, short-pointed or rounded at the apex, cuneate, rounded or rarely slightly obcordate at the base, and finely serrate, with incurved teeth tipped with minute or sometimes near the base of the blade with larger dark glands, when they unfold coated below and on the upper side of the midribs with fine pubescence, and at maturity thick and firm in texture, 4'-5' long, about 2' wide, dark dull green and glabrous on the upper surface, dull and covered on the lower surface with short simple or forked accrescent hairs most abundant and sometimes rufescent on the slender midribs and primary veins; their petioles stout, tomentose, becoming pubescent, eglandular or occasionally fur- nished near the apex with 1 or 2 large dark glands, ^'-^' long; stipules lanceolate, acuminate, glandular-serrate, bright red, Y ^ong, caducous. Flo'wers appearing during the first week of May, when the leaves are about half grown, ^' in diameter, on pubescent pedicels from the axils of ovate or obovate acuminate bright pink caducous bracts, in spreading or erect slender pubescent racemes 3'^' lo"g; calyx- tube broad, cup-shaped, puberulous, with short almost triangular lobes persistent on the fruit; petals white, nearly orbicular. Fruit ripening late in September, sub- globose to short-oblong, ^' in diameter, dark red or finally nearly black, with thin acid flesh, and an ovoid somewhat compressed stone pointed at the ends, ^' long, ridged on the ventral suture, with a broad low ridge, and slightly grooved on the dorsal suture. A tree, 25°-30° high, with a short trunk rarely 10' in diameter, spreading some- what drooping branches, and slender branchlets coated at first with pale tomentum, dark red-brown during their first season, becoming nearly glabrous before winter, and much darker in their second year. Bark of the trunk dark, rough, separating freely into small thin scales. Distribution. Summits of the low mountains of Central Alabama; rare and local. ROSACEA 527 14. Prunus australis, Beadl. "Wild Cherry. Leaves obovate, oval or elliptical, gradually narrowed and obtusely short-pointed or sometimes acute at the apex, rounded or sometimes cuneate at the narrowed base, and finely serrate, with slender teeth tipped with minute dark red glands, when they unfold membranaceous, pale yellow-green and glabrous above, with the exception of occasional pale hairs along the midribs, and coated below with pale or ferrugineous pubescence, and at maturity thin but firm, dark dull green above, covered below with matted rufous hairs most abundant on the thin broad midribs, and slender primary veins extending nearly to the margins of the leaf, conspicuously reticulate- venulose, 2^'~4:' long, l^'-2^' wide; their petioles stout, rusty-tomentose, biglandular at the apex, with large dark red glands, about ^' long; stipules linear to linear-lan- ceolate, glandular, bright rose color, \'-^' long. Flowers probably opening toward the end of April, on short pedicels from the axils of minute rose -colored caducous bracts, in slender spreading hoary-pubescent racemes 3-4' long; the expanded flowers not known. Fruit ripening and falling late in July, on pedicels ^' long, globose, surrounded at the base by the calyx-lobes and remnants of the stamens, dark purple when fully ripe, about ^' in diameter. A tree, sometimes 60° tall, with a trunk 12'-16' in diameter, spreading or ascend- ing branches forming an oblong head, and slender branchlets coated at first with pale pubescence, becoming puberulous, dull red-brown, and roughened by numerous small pale elevated lenticels at the end of the first season, and glabrous or puberu- lous in their second year. Bark of young stems and of the branches thin, silvery gray, and roughened by long horizontal lenticels, becoming on older trunks ^' thick, ashy gray or brownish black, deeply fissured and broken into thick persistent plate- like scales. Distribution. Clay soil at Evergreen, southern Alabama; common. 4. Flowers racemose in the axils of the persistent leaves of the previous year. Laurels. Cherry 15. Prunus Caroliniana, Ait. Wild Orange. Mock Orange. Leaves oblong-lanceolate, acuminate, mucronate, with entire thickened slightly revolute margins, or rarely remotely spinuloscTserrate, glabrous, coriaceous, dark 528 TREES OF NORTH AMERICA green and lustrous on the upper, paler on the lower surface, 2'-4y long, f -1^' wide, obscurely veined, with narrow pale midribs, persistent until their second year; their petioles stout, broad, orange-colored; stipules foliaceous, lanceolate-acuminate. Flowers appearing from February to April, on slender club-shaped pedicels from the axils of long acuminate scarious red-tipped bracts, in dense racemes shorter than leaves; calyx-tube narrowly obconic, the lobes small, thin, rounded, undulate on the margins, retlexed after the flowers open, deciduous; petals boat-shaped, minute, cream-colored; stamens exserted, orange-colored, with glabrous filaments and large pale anthers ; ovary gradually narrowed into a slender erect style enlarged above into a club-shaped stigma. Fruit ripening in the autumn, remaining on the branches until after the flowering period of the following year, oblong, short-pointed, black and lustrous, I' long, with a thick skin, thin dry flesh, and an ovate pointed nearly cylin- drical stone nearly 1' long, full and rounded at the base, with thin fragile walls, obscurely ridged on the ventral and deeply grooved on the dorsal suture. A tree, 30°-40° high, with a straight or inclining trunk sometimes 10' in diameter, slender horizontal branches forming a narrow oblong or sometimes a broad head, and glabrous branchlets marked by occasional pale lenticels, slightly angled, at first light green, becoming bright red, and in the second season light brown or gray. Winter-buds acuminate, |' long, covered with narrow pointed dark chestnut- brown scales rounded on the back. Bark about |' thick, gray, smooth or slightly roughened by longitudinal fissures, and marked by large irregular dark blotches. Wood heavy, hard, strong, close-grained, light red-brown or sometimes rich dark brown, with thick lighter colored sapwood. The partially withered leaves and young branches are often fatal to animals browsing upon them, owing to the considerable quantities of hydrocyanic acid which they contain. Distribution. Deep rich moist bottom-lands ; valley of the Cape Fear River to the shores of Bay Biscayne and the valley of the Kissimee River, Florida, and through southern Alabama, Mississippi, and Louisiana to the valley of the Guadalupe River, Texas; in the Atlantic and eastern Gulf states nowhere common, and only in the im- mediate neighborhood of the sea, rarely ranging inland more than fifteen or twenty miles ; most abundant and of its largest size in the valleys of eastern Texas, and here often forming impenetrable thickets of considerable extent. KOSACEiE 529 Often cultivated in the southern states as an ornamental plant and to form hedges. 16. Prunus sphaerocarpa, Sw. Leaves elliptical to oblong-ovate, gradually or abruptly contracted into broad obtuse points, or less commonly rounded or rarely emarginate at the apex, wedge- shaped at the base, entire, with slightly thickened undulate margins, glabrous, eglandular, subcoriaceous, yellow-green and lustrous on the upper, paler on the lower surface, obscurely veined, 2'-4y long, I'-l^ broad, persistent ; their petioles slender, orange-brown, ^' to nearly V long; stipules foliaceous, lanceolate-acuminate, entire, Y long, early deciduous. Flowers opening in Florida in November, ^' in diameter, on thin orange-colored pedicels ^'-f^ long, in slender many-flowered erect racemes shorter than the leaves; calyx-tube obconic, bright orange-colored on the outer sur- face, marked by an orange band in the throat, the lobes thin, minute, acute, laciniate on the margins, deciduous, much shorter than the obovate rounded or acuminate white petals, marked with yellow on the inner surface toward the base; contracted below into short claws, reflexed at maturity ; stamens exserted, with slender orange-colored subulate filaments and small yellow anthers; ovary sessile, contracted into a short stout style, crowded into a large club-shaped stigma. Fruit produced in Florida very sparingly, ripening either in the spring or early summer, subglobose to short-oblong, apiculate, orange-brown, j-^' long, with thin dry flesh adherent to the thin- walled cylindrical stone shghtly narrowed at the apex, obscurely ridged on the ventral suture. A glabrous tree, in Florida rarely 25°-30° high, with a trunk 5^-6' in diameter, slender upright branches and slender orange-brown branchlets, becoming ashy gray or light brown tinged with red and marked by small circular pale lenticels. Bark thin, smooth, or slightly reticulate-fissured, light brown tinged with red. Wood heavy, hard, close-grained, light clear red, with thick pale sapwood. Distribution. Rich hummock land, occasionally near the borders of small streams and ponds, and in the United States only near the shore of Bay Biscayne; through the West Indies to Brazil. 530 TREES OF NORTH AMERICA 17. Prunus ilicifolia, Walp. Islay. Leaves ovate to ovate-lanceolate, acute, rounded or emarginate at the apex, cuneate and rounded or truncate at the base, with thickened coarsely spinosely toothed margins, the stout teeth near the base of the leaf often tii)ped with large dark glands, thick and coriaceous, dark green and lustrous above, paler and yellow- green below, l'-2^' long, I'-l^' wide, with slender yellow midribs and obscure veins, deciduous during their second summer; their petioles broad, -g'-^' long; stipules acuminate, obscurely denticulate, ^ long. Flowers opening from March to May, y in diameter, on short slender pedicels from the axils of acuminate scarious bracts ^' in length and mostly deciduous before the opening of the flower-buds, in slender erect racemes l^'-3' long; calyx-tube cup-shaped, orange-brown, the lobes minute, acuminate, reflexed at maturity, deciduous, about one third as long as the obovate white petals rounded above and narrowed below into short claws; stamens slightly exserted, with slender incurved filaments and minute yellow anthers; ovary sessile, abruptly contracted into a slender style usually bent near the summit at a right angle or rarely erect, and surmounted by a large orbicular stigma. Fruit ripening in November and December, subglobose, often compressed, ^'-f in diameter, dark red when fully grown, purple or sometimes nearly black at maturity, with thin slightly acid astringent flesh easily separable from the ovate slightly compressed stone |'-|' long, short-pointed at the apex, with thin brittle walls, light yellow-brown, conspic- uously marked with reticulate orange-colored vein-like lines, with 3 orange bands radiating from the base to the apex along one suture, and a single narrow band along the other suture. A glabrous tree, 20°-30° high, with a trunk rarely 2° in diameter or more than 10°-12° long, stout spreading branches forming a dense compact head, and branch- lets at first yellow-green or orange color, soon becoming gray or reddish brown and more or less conspicuously marked by minute pale lenticels, and in their second or third years by the large leaf -scars; usually much smaller and often a shrub some- times only a foot or two high. Bark |'-^' thick, dark red-brown, and divided by deep fissures into small square plates. Wood heavy, hard, strong, close-grained, light red-brown, with thin lighter colored sapwood of 8-10 layers of annual growth; occasionally used for fuel. EOS AGILE 531 Distribution. Borders of streams and moist sandy soil in the bottoms of canons, and as a low shrub on dry hillsides and mesas from the shores of the Bay of San Francisco southward through the coast ranges of California to the foothills of the San Bernardino Mountains, and on Santa Cruz and Santa Rosa islands. Occasionally cultivated as an ornamental plant in western and southern Europe. 18. Prunus integrifolia, Sarg., nov. nom. (Prunus ilicifolia, var. integrifolia, Silva N. Am. iv. 54.) Leaves ovate to lanceolate, acuminate or abruptly narrowed into short points at the apex, wedge-shaped, truncate or rounded at the base, with thickened revolute undulate entire or occasionally, especially on vigorous shoots, remotely and minutely spinulose-dentate margins, glabrous, coriaceous, dark green and lustrous above, paler below, reticulate-venulose, 2'-3' long, and ^'-2^' wide, with stout midribs and ob- scure veins, persistent; their petioles stout, yellow, ^'-^' long. Flowers appearing from March to June, about ^ i^ diameter, on slender pedicels from the axils of acuminate caducous bracts, in crowded many-flowered glabrous racemes 3'-4' long; calyx-tube cup-shaped, orange-brown, the lobes acute, apiculate, reflexed after the flowers open, deciduous, about one third as long as the obovate petals rounded and undulate above and narrowed below into short claws; stamens slightly exserted, with incurved filaments and small yellow anthers; ovary raised on a short stipe, the style bent near the apex and terminating in a large orbicular stigma. Fruit ripening late in the autumn, on stout pedicels, in drooping few-fruited racemes, subglobose to short- oblong, dark purple or nearly black at maturity, 1'- 1^ in diameter, with thick lus- cious flesh sometimes i' thick, and easily separable from the ovate to obovate slightly compressed thin-walled stone about |' long, pointed at the apex, pale yellow-brown, conspicuously marked by reticulate orange-colored lines, and by^ 3 dark bands radi- ating from the base to the apex along one suture, and by a single narrow line on the other suture. A bushy tree, sometimes 25°-30° high, with one or several stout erect or spread- ing stems l°-3° in diameter, spreading branches forming a broad compact head, and stout branchlets light yellow-green when they first appear, becoming light and ultimately dark reddish brown, and much roughened by the large elevated leaf-scars. 532 TREES OF NORTH AMERICA Winter-buds acute or obtuse, with dark red scales. Bark of the trunk \'-^' thick and dark reddish brown. Wood heavy, hard, very close-grained, pale reddish brown, with hardly distinguishable sapwood. Distribution. Islands of southern California, in all exposures from the fertile valleys and canons at the water's edge up to elevations of 3000° on the dry interior ridges; and in Lower California. 10. chrysobAlanus, l. Trees or shrubs, with stout branchlets covered with pale lenticels, and fibrous roots. Leaves alternate, entire, coriaceous, short-petiolate, persistent; stipules mi- nute, deciduous. Flowers perfect, short-pedicellate, small, creamy white, in axillary or terminal dichotomously branched slender canescent cymes, with conspicuous de- ciduous bracts; calyx turbinate-campanulate, 5-lobed, the lobes imbricated in the bud, without bracts, deciduous; disk thin, adnate to the calyx-tube; petals 5, alter- nate with the lobes of the calyx, spatulate, deciduous; stamens (in the arborescent species) indefinite in a single continuous series, inserted with the petals on the mar- gin of the disk; filaments filiform, hairy, free or slightly united at the base; anthers ovoid, ovary sessile in the bottom of the calyx-tube, hirsute or glabrous, 1-celled; style rising from the base of the ovary, filiform, terminated by a minute truncate stigma; ovules 2, collateral, ascending; raphe dorsal, the micropyle inferior. Fruit a fleshy 1-seeded drupe with pulpy flesh, a coriaceous or crustaceous stone, 5 or 6-angled toward the base and imperfectly 5 or 6-valved, the valves reticulate-veined. Seed erect; seed-coat chartaceous, light brown; embryo filling the cavity of the seed; cotyledons thick and fleshy; radicle inferior, very short. Chrysobalanus is represented in the south Atlantic states by a shrubby species confined to the coast region from Georgia to Alabama, and by a second species occa- sionally attaining the size of a small tree, an inhabitant of the shores of southern Florida, widely distributed through the maritime regions of tropical America, and found in various forms on the coast of western tropical Africa. The generic name is from XP^'^^^ ^^^ fiaKavos, in allusion to the supposed golden fruit of one of the species. 1. Chrysobalanus Icaco, L. Cocoa Plum. Leaves broadly elliptical or round-obovate, rounded or slightly emarginate at the apex, wedge-shaped at the base, glabrous, coriaceous, obscurely reticulate-veined, dark green and lustrous on the upper and light yellow-green on the lower surface, l'-3^' long, l'-2|' wide, with broad conspicuous midribs rounded on the upper side and thin primary veins, standing on the branches at an acute angle and appearing to be pressed against them; their petioles stout, ^'-^' long; stipules acuminate, \' long. Flowers y long, on short thick club-shaped hoary-tomentose pedicels, in cymes l'-2' in length, appearing in Florida continuously during the spring and sum- mer months on the growing branches; calyx hoary-tomentose, the lobes nearly trian- gular, acute, more or less pubescent on the inner surface and about half as long as the narrow white petals; ovary hoary-pubescent; style long and slender, clothed nearly to the apex with pale hairs. Fruit nearly globose or often slightly ovoid, f'-l' in diameter, with smooth bright pink, yellow, purple, creamy white, or some- times nearly black skin, white sweet juicy flesh often \' thick, and more or less ad- herent to the stone pointed at the ends, 5 or 6-angled below the middle, \'-l\' long LEGUMINOS^ 533 and twice as long as broad, indehiscent or finally separating into 5 or 6 valves, the walls composed of a thin red-brown dry outer layer and a thick interior layer of hard woody fibre ; seed-coat lined with a thick white reticulated fibrous coat. A tree, 25°-30° high, with a long straight trunk occasionally a foot in diameter, and dark reddish brown branches glabrous or sometimes slightly pilose at first, bscoming brown or gray-brown in their second year; more often a tall broad bush with many upright spreading branches, or often in exposed situations a semiprostrate shrub l°-2° high. Bark of the trunk i' thick, with a light gray surface tinged with red, separating into long thin scales. Wood heavy, hard, strong, close-grained, light brown often tinged with red, with thin lighter colored sapwood of about 10 layers of annual growth. The insipid fruit is eaten by negroes; the seeds contain a consider- able quantity of oil; and the astringent bark, leaves, and roots have been used medi- cinally. Distribution. Usually on saline shores in Florida; Cape Canaveral to Bay Bis- cayne, and on the west coast from Caximbas Bay to the southern keys; generally shrubby; arborescent only on the islands of the Everglades near Bay Biscayne, and on the Miami River; through the West Indies to southern Brazil, and on the west coast of Africa from Senegambia to the Congo Free State. XXII. LEGUMINOS^. Trees or shrubs, with alternate usually compound leaves, regular or papil- ionaceous usually perfect flowers ; stamens 10 or indefinite, with diadelphous or distinct filaments and 2-celled anthers, the cells opening longitudinally ; ovary superior, 1 or many-celled, inserted on the bottom of the calyx. Fruit a legume. Of the four hundred and thirty genera of the Pea family now recognized and widely distributed in all temperate and tropical regions, seven- teen have arborescent representatives in the United States. CONSPECTUS OF THE NORTH AMERICAN ABORESCENT GENERA. Subfamily 1. Mimosolde^. Calyx 4-6-toothed, the teeth valvate in the bud ; petals as many as the teeth of the calyx, valvate in the bud ; ovules numerous, suspended in 2 ranks from the inner angle of the ovary, superposed, anatropous, the micropyle superior ; sta- 534 TREES OF NORTH AMERICA mens much exserted ; leaves twice pinnate ; cotyledons oval or orbicular, flat j radicle straight. Stamens numerous (more than 10) ; seeds without albumen. Filaments more or less united into a tube. Filaments united. Valves of the pods not separating at maturity from the margins. 1. Zygia. Valves of the pods separating at maturity from the persistent margins. 2. Lysiloma. Filaments free or the inner ones slightly united at the base. 3. Acacia. Stamens 10 ; filaments free ; seeds with albumen. Legume piano-compressed, dehiscent ; flowers in globose heads. 4. Leucaena. Legume terete or compressed, indehiscent ; flowers in cylindrical spikes. 5. Prosopis. Subfamily 2. C^salpinioid^. Calyx 5-lobed or toothed, the divisions usually valvate in the bud ; corolla imperfectly papilionaceous or nearly regular ; petals 5, imbricated in the bud, the upper one inside and inclosed by the others ; stamens 10 or less ; filaments free; anthers introrse ; ovules numerous {sometimes 2 in one species o/ Gleditsia) , super- posed, anatropous, the micropyle superior ; seeds albuminous. Flowers imperfectly papilionaceous ; calyx 5-toothed ; legume flat, wing-margined ; leaves simple. 6. Cercis. Flowers regular. Flowers polygamous or dioecious. Calyx-tube elongated, 5-lobed ; petals 5 ; stamens 10, shorter than the petals ; legume thick and woody ; leaves twice pinnate. 7. Gymnocladus. Calyx-tube short, 3-5-lobed ; petals 3-5 ; stamens 3-5, longer than the petals ; legume leathery ; leaves once and twice pinnate. 8. Gleditsia. Flowers perfect. Legumes linear, torulose, acuminate at the ends, the valves contracted between the seeds; rachis of the leaf spinescent. 9. Parkinsonia. Legumes oblong-compressed, rachis of the leaf not spinescent. 10. Cercidium. Subfamily 3. Papilionat^. Calyx of 5 more or less united sepals ; corolla of 5 irregular petals, papilionaceous, the upper petal (standard) larger than the others and inclosing them in the bud, usually turned backward or spreading, the 2 lateral petals (wings) oblong, exterior to the 2 lower connivent more or less united petals (keel) inclosing the stamens and pistil ; stamens 10, 9 of them united into a tube cleft on the upper side, the 10th and upper one separate, or all distinct; ovary 1 or many-celled by cross parti- tions ; ovules amphitropous, the micropyle superior ; seeds usually without albumen ; leaves once pinnate. Stamens distinct. Flowers in racemes ; legume terete, contracted between the seeds. 11. Sophora. Flowers in panicles ; legume compressed. 12. Cladrastis. Stamens diadelphous (9 and 1). Flowers in racemes. Leaves glandular-dotted. Leaves many-foliolate ; petals free and distinct. 13. Eysenhardtia. Leaves simple ; wings and keel-petals adnate to the tube of the stamens. 14. Dalea. Leaves without glandular dots. Legume compressed ; stipules becoming spinescent, persistent. 15. Robinia, Legume turgid, the valves unequally convex by the growth of the seeds ; stipules 0. 16. Olneya. Flowers in axillary panicles ; pod linear, longitudinally 4-winged. 17. Icthyomethia. LEGUMINOS^ 535 1. ZYGIA, P. Br. Trees or shrubs, with slender branches armed with the persistent spinescent stip- ules. Leaves petiolate, bipinnate, the pinnse few-foliolate, their rachises generally marked by numerous glands between the pinnse and between the leaflets. Flowers perfect or polygamous, from the axils of minute bracts, in pedunculate globose heads or oblong cylindrical spikes, their peduncles in terminal panicles or axillary fascicles; calyx campanulate, short-toothed; corolla funnel-shaped, the petals as many as the teeth of the calyx, joined for more than half their length; stamens numerous, united at the base into a tube free from the corolla; anthers minute, versatile; ovary stipi- tate, contracted into a slender filiform style, with a minute terminal stigma. Legume compressed, 2-valved, dehiscent, the valves continuous or interrupted within. Seeds compressed, suspended transversely; funicle filiform or expanded into a fleshy aril; hilum near the base of the seed; seed-coat thin or thick, marked on each of the 2 surfaces of the seed by a faint oval ring or oblong depression ; embryo filling the cavity of the seed; the radicle included or slightly exserted. Zygia with more than a hundred species is widely distributed through the tropical and subtropical regions of the two worlds, and is most abundant in tropical America. Of the four species found within the territory of the United States three are arbo- rescent. The generic name, from C^y6s, is the classical name of some other tree. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Pinnas with 1 pair of leaflets ; valves of the leg-urae much contorted after opening ; seeds surrounded by the enlarged ariloid f unicles. 1. Z*. Unguis-cati (D). Pinnaa with more than 1 pair of leaflets ; valves of the legume not contorted after opening ; funicle of the seed not enlarged and ariloid. Pinnae with 3-5 pairs of leaflets ; leg'ume short-stalked, the valves submembranaceous ; seeds not in separate compartments. 2. Z. brevif olia (E). Pinnae with 2-3 pairs of leaflets ; legume sessile, the valves thick and woody, tardily dehiscent ; seeds in separate compartments. 3. Z. flexicaulis (E). 1, Zygia Unguis-cati, Sudw. Cat's Claw. Leaves persistent, long-petiolate, with a single pair of bifoliolate pinnae, and slen- der petioles faintly grooved on the upper side, ^'-1' long, and slightly and abruptly enlarged at the base; rachis glandular between the short stout petiolules and between leaflets; leaflets obtuse, orbicular or broadly oblong, very oblique and obtuse or rarely emarginate at the apex, entire, membranaceous or somewhat coriaceous, reticulate- veined, bright green and lustrous on the npper and paler on the lower surface, •|'-2' long and ^'-1^' wide. Flowers polygamous, pale yellow, glabrous or slightly puber- ulous, opening in Florida in March and continuing to appear until midsummer, in globular heads, on slender peduncles I'-l^' long fascicled in the axils of upper leaves or collected in ample terminal panicles, their bracts lanceolate, acuminate, chartaceous, Y long, caducous ; calyx rather less than ^^' long, broadly toothed, one quarter as long as the acuminate petals barely exceeding the tube formed by the union of the fila- ments; stamens purple, ^' long; ovary glabrous, long-stalked, minute or rudimentary in the sterile flower. Fruit compressed, slightly torulose, stipitate, rounded or acute at the apex, 2'^' long* V~i' wide, the valves reticulate-veined, thickened on the mar- gins, bright reddish brown and after opening greatly and variously contorted ; seeds 536 TREES OF NORTH AMERICA irregularly obovate or sometimes nearly triangular, compressed or thickened, dark chestnut-brown, lustrous, marked by faint oval rings, ^' long, surrounded at the base by the enlarged bright red ariloid funicle; seed-coat thin, cartilaginous. A tree, sometimes 20°-25° high, with a slender trunk 7'-8' in diameter, ascending^ and spreading branches forming a low flat irregular head, and slender somewhat zig- zag branchlets at first slightly striately angled, becoming terete, light gray-brown or dark reddish brown, covered with minute pale lenticels, and armed with the straight persistent rigid stipular spines broad at the base and ^' long, or rarely minute; more often a shrub, with many vine-like almost prostrate stems. Bark of the trunk ^ thick, reddish brown and divided by shallow fissures into small square plates. Wood very heavy, hard, close-grained, rich red varying to purple, with thin clear yellow sap- wood. The bark is astringent and diuretic, and was once used in Jamaica as a cure for many diseases. Distribution. Florida, shores of Caximbas Bay and on many of the southern keys; most abundant in its arborescent form on the larger of the eastern keys, and probably of its largest size in Florida on Elliott's Key; often forming shrubby thickets; common and widely distributed through the Antilles to Venezuela and New Granada. 2. Zygia brevifolia, Sud-w. Huajillo. Leaves 2'-3' long, 2' wide, long-petiolate, with 8-12 10-20-foliolate pinnse and slender terete petioles 1' long and furnished near the middle with a dark oblong gland, when they unfold coated with pale tomentum and at maturity glabrous with the exception of the puberulous petioles and rachises, persistent or tardily deciduous; leaflets oblong-linear, obtuse or acute at the apex, oblique at the base, very short- petiolate, ^^-j' long, light green on the upper, paler on the lower surface. Flowers white to violet-yellow, in globose or oblong heads ^' in diameter, on thin pubescent peduncles bracteolate at the apex, coated at first, like the flower-buds, with thick white tomentum, developed from the axils of lanceolate acute scarious deciduous bracts, and arranged in short terminal racemes; calyx shortl}'^ 5-lobed, puberulous on the outer surface, about -^j long and one fourth the length of the puberulous petals persistent with the stamens at the base of the mature fruit; stamens nearly ^' long. Fruit ripening at midsummer and often persistent on the branches after LEGUMINOS^ 637 opening until the trees flower the following year, straight, compressed, slightly toru- lose, short-stalked, contracted at the apex into a short slender point, 4'-6' long and I' wide, its valves somewhat membranaceous, thick-margined, reddish brown on the r^ ^m- outer, yellow tinged with red on the inner surface, reticulate-veined; seeds sus- pended by slender coiled and somewhat dilated funicles, compressed, ovate to nearly orbicular, dark chestnut-brown, very lustrous, \' long, and faintly marked by large oval depressions; seed-coat thin, cartilaginous. A tree, 25°-30° high, with a trunk rarely o'-6' in diameter, slender upright branches forming a narrow irregular head, and branchlets slightly striately angled, covered with minute white lenticels, light gray and puberulous when they first ap- pear, becoming dark brown in their second year, and armed with stout rigid stipular spines sometimes ^' long and persistent for many years; more often a shrub, some- times only 2°-3° tall. Bark of the trunk smooth, light gray somewhat tinged with red, and often marked by large pale blotches. "Wood dark-colored, hard, and heavy. Distribution. Bluffs and bottom-lands of the lower Rio Grande, Texas; usually a low shrub spreading into broad clumps, but occasionally in the rich and compara- tively moist soil of the river lagoons a slender tree; in Mexico more abundant; of its largest size from the mouth of the Rio Grande to the Sierra Madre of Xuevo Leon. 3. Zygia flexicaulis, Sudw. Ebony. Leaves persistent, l^'-2' long, 2^'-3' wide, long-petiolate, with slender puber- ulous petioles glandular near the middle and furnished at the apex with small orbic- ular solitary glands, and 4-6 usually 6-foliolate pinnse, the lowest pair often the shortest, persistent; leaflets ovate-oblong, rounded at the apex, reticulate-veined, membranaceous or subcoriaceous, glabrous, dark green and lustrous on the upper surface, paler on the lower, \'-\' long, petiolules short and broad. Flo"wers light yellow or cream color, very fragrant, sessile in the axils of minute caducous bracts, appearing from June until August, in cylindrical dense or interrupted spikes 1\' long, on stout pubescent peduncles fascicled in the axils of the upper leaves of the previous year; corolla four or five times as long as the calyx and like it puberulous on the outer surface, and about as long as the tube formed by the union of the filaments; stamens 538 TREES OF NORTH AMERICA I' long; ovary glabrous, sessile. Fruit ripening in the autumn and remaining on the branches until after the flowering season of the following year, sessile, tardily dehiscent, flattened, turgid, straight or slightly falcate, oblique at the base, rounded and contracted into a short broad point at the apex, 4'-6' long, I'-l^' broad, with thick woody valves lined with a thick pithy substance inclosing and separating the seeds; seeds suspended on very short straight funicles, bright red-brown, ^' long, ^' wide, irregularly obovate, faintly marked by short oblong depressions; seed-coat thick, crustaceous. A tree, 20°-30° high, with a straight trunk 2°-3° in diameter, separating 8°-10° from the ground into short spreading branches forming a wide round head, and stout zigzag branchlets, puberulous, light green or dark reddish brown when they first appear, becoming in their second year glabrous or rarely puberulous, dark reddish brown or light gray, and armed with the persistent stipular pale chestnut-brown /^ spines \'-^' long. Wood exceedingly heavy, hard, compact, close-grained, dark rich red-brown slightly tinged with purple, with thin clear bright yellow sapwood; almost indestructible in contact with the ground and largely used for fence-posts; valued by cabinet-makers and for fuel, and considered more valuable than that of any other tree of the Rio Grande valley. The seeds are palatable and nutritious, and are boiled when green or roasted when ripe by the Mexicans, who use their thick shells as a substitute for coffee. Distribution. Shores of Matagorda Bay, Texas, to the Sierra Nevada of Nuevo Leon, and in Lower California; common on the bluffs of the Gulf coast and on both banks of the lower Rio Grande ; south of the Rio Grande one of the commonest and most beautiful trees of the region. 2. LYSILOMA, Benth. Trees or shrubs, with slender unarmed branches, abruptly bipinnate long-peti- olate persistent leaves, their petioles marked by large conspicuous glands, and small leaflets in many pairs; stipules large, membranaceous, persistent or deciduous. Flowers perfect or rarely polygamous, minute, usually white or greenish white, from the axils of minute bractlets more or less dilated at the apex, in globose LEGUMINOS^ 539 many-flowered heads, on axillary solitary or fascicled peduncles ; calyx campanulate, o-toothed; corolla funnel-shaped, of 5 petals united for more than half their length; stamens generally 12-30, exserted; filaments filiform, united at the base into a tube free from the corolla; anthers minute, ovate, versatile; ovary sessile, contracted into a slender subulate style, with a minute terminal stigma. Legume broad, straight, compressed, submembranaceous, the valves at maturity separating from the undivided margins, continuous within, their outer layer thin and papery, dark-colored, the inner rather thicker, pale yellow. Seeds compressed, transverse, suspended by long slen- der funicles, the hilum near the base; seed-coat thin, crustaceous; radicle slightly exserted. Lysiloma with about ten species inhabits tropical America from southern Florida and the Bahama Islands, the West Indies. Mexico and Lower California, to Central America and Bolivia. Several of the species produce valuable timber. The generic name, from Xixris and Awfia, refers to the separation of the valves from the margins of the legume. 1. Lysiloma Bahamensis, Benth. Wild Tamarind. (Lysiloma latisiliqua, Silva N. Am. iii. 129.) Leaves 4'-5' long, glabrous or sometimes slightly puberulous, with slender peti- oles V long, marked near the middle with an elevated gland, and 2-5 pairs of short- stalked 40-80-foliolate pinnae; their petioles enlarged and slightly glandular at the fT^-u-i+6 base; stipules foUaceous, ovate or ovate-oblong, acuminate, auriculate and semi- cordate at the base, ^' long, usually caducous; leaflets obliquely ovate or oblong, obtuse or acute, more or less united at the base by the greater development of one of the sides, sessile or short-petiolulate, entire, reticulate-veined, light green, paler on the lower than on the upper surface, ^ -|' long and ^'-\' wide. Flo-wers about Y long, in heads appearing in Florida early in April, coated before the flowers open with thick pale tomentum, and after the exsertion of the stamens |' in diameter, on peduncles |'-iy long, solitary or fascicled in the axils of upper leaves, their bracts and bractlets acute, membranaceous, caducous; calyx broadly o-toothed, pilose on the 540 TREES OF NORTH AMERICA outer surface, especially above the middle, ^' long, and half as long as the 5-lobed corolla with reflexed lobes; stamens about 20, twice as long as the corolla, united for one fourth of their length into a slender tube. Fruit stipitate, gradually narrowed and acute at the ends, 4'-5' long, 1' broad, with a slender stem V-1' long, ripening in the autumn and persistent on the branches until after the flowering period of the following year, in clusters of 2-3 on short peduncles abruptly and conspicuously enlarged at the apex; valves thin and papery, bronze-green when fully grown, becoming dark red-brown, separating slowly from the margins; seeds oval or obovate, dark brown, lustrous, ^' long, A tree, 4:0°-50° high, with a trunk 2°-3° in diameter, stout spreading branches forming a wide flat head, and glabrous or somewhat pilose branchlets, conspicuously verrucosa, bright red-brown when they first appear, becoming pale or light reddish brown in their second year. Bark of the trunk of young trees and of the branches smooth, light gray tinged with pink, becoming on old trunks \-\' thick, dark brown and separating into large plate-like scales. Wood heavy, hard, not strong, tough, close-grained, rich dark brown tinged with red, with nearly white sapwood I'-l^' thick, of 4 or 5 layers of annual growth ; in Florida occasionally used and valued for boat and shipbuilding. Distribution. Key Largo, Elliott's, Plantation, and Boca Chica keys, Florida; not common; on the Bahama Islands. 3. ACACIA, Adans. Trees or shrubs, with slender branches armed with spinescent stipules or infra- stipular spines. Leaves alternate on young branches and fascicled in earlier axils, bipinnate, with usually small leaflets, persistent. Flowers perfect or often polyga- mous, small, in the axils of minute linear bractlets more or less dilated and often peltate at the apex, in globose heads or cylindrical spikes, on axillary solitary or fasci- cled peduncles; calyx campanulate, 5 or 6-toothed; petals as many as the divisions of the calyx, more or less united; stamens numerous, usually more than 50, exserted, free or slightly and irregularly united at the base, inserted under or just above the base of the ovary ; filaments filiform ; anthers small, attached on the back, versatile ; ovary contracted into a long slender style terminating in a minute stigma. Legume nearly cylindrical or flat, indehiscent, continuous or divided within. Seeds transverse, compressed; seed-coat thick, crustaceous, marked on each face of the seed by an oval depression or ring; radicle straight, included, or slightly exserted. Acacia with more than four hundred species is widely distributed through Australia, where it is most largely represented, tropical and southern Africa, northern Africa, southwestern China, the warmer regions of southern Asia, the islands of the south Pacific, tropical and temperate South America, the West Indies, Central America and Mexico to the southwestern boundaries of the United States where ten or twelve species occur; of these four are arborescent. Acacia is astringent, and many species yield valuable tan bark. Gum arabic is produced by different Old World species; many of the species yield hard heavy durable wood, and some of the Australian species are large and valuable timber-trees. Many species are cultivated for their graceful foliage and handsome fragrant flowers. The generic name, from anaKia, relates to the spines with which the branches are usually armed. J LEGIBIINOS^ 541 CONSPECTUS OF THE ARBORESCENT SPECIES OF THE UNITED STATES. Flowers in g-lobose heads j corolla 5-lobed; ovary sessile; stipules persistent, becoming spines. Legume cylindrical, glabrous, its sutures conspicuously thickened and grooved ; seeds in 2 ranks. 1. A. Farnesiana (E). Legume flattened, pubescent, its sutures not thickened, slightly grooved ; seeds in 1 rank. 2. A. tortuosa (E). Flowers in elongated slender spikes ; corolla of 5 petals only slightly united at the base ; ovary stalked ; stipules caducous ; branchlets armed with inf rastipular spines. Legume 1' wide, straight or slightly contracted between the seeds, not becoming twisted and contorted at maturity ; seeds narrowly obovate or ovate. 3. A. "Wrightii (E). Legume ^'-f wide, often conspicuously contracted between the seeds, becoming twisted and contorted at maturity ; seeds nearly orbicular. 4. A. Greggii (E, G, H). 1. Acacia Farnesiana, "Willd. Huisache. Cassie. Leaves 1'-^ long, with 2-8, usually 4 or 5, pairs of pinnse, generally somewhat puberulous on the short petioles and rachises, in Texas mostly falling at the begin- ning of winter; pinnae sessile or short-stalked, remote or close together, with 10-25 fiq4^7 pairs of linear acute leaflets tipped with minute points, miequal at the base, sessile or short-petiolulate, glabrous or puberulous, bright green, ^-^ long. Flowers bright yellow, very fragrant, ^^g' long, opening during the summer and autumn from the axils of minute clavate pilose bractlets, in heads |' in diameter, on axillary solitary slender puberulous peduncles, most often 2 or 3 together and I'-l^ long, with two mi- nute dentate connate bracts forming an involucral cup immediately under the flower- head; calyx about half as long as the petals and like them somewhat pilose on the outer surface; stamens two or three times as long as the corolla; ovary short-stipi- tate, covered with long pale hairs. Fruit oblong, cylindrical or spindle-shaped, thick, turgid, straight or curved, slightly contracted between the seeds, short-stalked, nar- rowed at the apex into a short thick point, 2'-3' long, |'-f ' broad, dark red-purple, lustrous, and marked by broad light-colored bands along the thickened grooved sutures, the outer coat of the walls thin and papery, inclosing a thick pithy pulp- like substance surrounding the seeds, each in a separate thin-walled compartment; 642 TREES OF NORTH AMERICA seeds ovate, thick, flattened on the inner surface by mutual pressure, \' long, sus- pended transversely in 2 ranks on short straight funicles, light brown, lustrous, and faintly marked by large oval rings. A tree, 20°-30° high, with a straiglit trunk 12'-18' in diameter, separating C°-8° from the ground into numerous long pendulous branches forming a wide round spreading head, and slender terete or slightly striate angled branchlets, glabrous or at first puberulous, and armed with straight rigid terete spines developed from the persistent stipules and sometimes 1^' long. Bark of the trunk thin, reddish brown, irregularly broken by long reticulated ridges, exfoliating in large thin scales. Wood heavy, hard, close-grained, rich reddish brown, with thin pale sapwood; in India used for the knees of small vessels and in agricultural implements. Distribution. Now widely spread by cultivation through the tropical and sub- tropical regions of the two worlds and probably a native of America from western Texas to northern Chili; growing in Texas apparently naturally in the arid and almost uninhabited region between the Nueces and Rio Grande. Largely cultivated in southern Europe for its fragrant flowers used in the manu- facture of perfumery, as an ornament of gardens in all warm countries, and in India as a hedge plant. 2. Acacia tortuosa, Willd. Leaves generally less than V long, short-petiolate, with slender puberulous rachises and usually 3 or 4 pairs of pinnte, early deciduous; pinnae sessile or short-stalked, remote, with 10-15 pairs of linear somewhat falcate leaflets, acute, tipped with minute points, subsessile, light green, glabrous, 2V "le' long. Flowers minute, bright yellow, very fragrant, in the axils of clavate pilose bractlets, in heads ^'-f ' in diameter, appearing in March with or just before the unfolding leaves, on clustered or solitary slender puberulous peduncles, ^'-f long, and furnished at the apex with 2 minute connate bracts; calyx only about one third as long as the corolla, with short f^ ^^S puberulous lobes; corolla puberulous at the apex, less than one half as long as the filaments; ovary covered with short close pubescence. Fruit elongated, linear, slightly compressed, somewhat constricted between the seeds, 3'-5' long, about \' wide, dark red-brown and cinereo-puberulous; seeds in 1 series, obovate, com- pressed, dark red-brown, lustrous, about \' long, faintly marked by large oval rings. LEGUMINOS^ 543 A tree, occasionally 15°-20° high, with a straight trunk 5'-6' in diameter, stout wide-spreading branches forming an open irregular head, and slender somewhat zig- zag slightly angled reddish brown branchlets roughened by numerous minute round lenticels, villose, with short pale hairs, and armed with thin terete puberulous spines occasionally f long; in Texas usually shrubby, with numerous stems forming a sym- metrical round-topped bush only a few feet high. Bark dark brown or nearly black, and deeply furrowed. Distribution. Valley of the Rio Cibolo to Eagle Pass on the Rio Grande, Texas; and in northern and southern Mexico, the West Indies, Venezuela, and on the Gala- pagos Islands; in Texas probably arborescent only on the plains of the Rio Grande near Spofford. 3. Acacia Wrightii, Benth. Cat's Claw. Leaves l'-2' long, slightly pubescent, especially on the petioles and rachises, with 1-3 pairs of pinnse, slender petioles 1^' long, and eglandular or glandular, with small convex glands, and linear acute caducous stipules ^^g' long; pinnae short-stalked, with 2-5 pairs of obliquely obovate-oblong leaflets, obtuse, rounded, and often apic- ulate at the apex, sessile or short-petiolulate, 2 or sometimes 3-nerved, reticulate- veined, rigid, bright green and rather paler on the lower than on the upper surface, J^'-i' long. FlQ-wers light yellow, fragrant, appearing from the end of March to the end of May, on slender pubescent pedicels from the axils of minute caducous bracts, in narrow spikes. 1^' long, often interrupted below the middle, on slender fascicled pubescent or sometimes glabrous peduncles; calyx obscurely 5-lobed, pubes- cent on the outer surface, half as long as the spatulate petals slightly united at the base, and ciliate on the margins; stamens \' long; ovary long-stalked, covered with long pale hairs. Fruit fully grown early in the summer, deciduous in the autumn, slightly falcate, compressed, stipitate, oblique at the base, rounded and short-pointed at the apex, 2'^' long, V wide, with thick straight or irregularly contracted margins and thin papery walls conspicuously marked by narrow horizontal reticulate veins; seeds narrowly obovate, compressed, \' long, suspended transversely on long slender funicles, light brown, mark6d by large oval depressions. A tree, occasionally 25°-30° high, with a short trunk 10-12' in diameter, spread- 544 TREES OF NORTH AMERICA ing branches forming a low wide or irregular head, and branchlets when they first appear somewhat striately angled, glabrous, pale yellow-brown or dark red-brown, turning pale gray in their second year, and armed with occasional stout recurved infrastipular chestnut-brown spines ^ long, compressed toward the broad base and very sharp-pointed, or rarely unarmed. Bark of the trunk about ^' thick, furrowed, divided by shallow furrows into broad ridges separating on the surface into thin narrow scales. "Wood very heavy, hard, close-grained, bright clear brown streaked with red and yellow, with thin clear yellow sapwood of 6 or 7 layers of annual growth; valued and largely used as fuel. Distribution. Valley of the Guadalupe River in the neighborhood of New Braunfels, Texas, to the Sierra Madre of Nuevo Leon; most abundant and of its largest size south of the Rio Grande on dry gravelly mesas and foothills. 4. Acacia Greggii, Gray. Cat's Claw. Uiia de Gate. Leaves l'-3' long, pubescent or puberulous, with 1-3 pairs of pinnae, short slender petioles furnished near the middle with a minute oblong chestnut-brown gland, and linear stipules ^^g' long and caducous ; pinnae short-stalked, with 4-5 pairs of obovate oblique leaflets rounded or truncate at the apex and unequally con- tracted at the base into short petiolules, thick and rigid, 2-3-nerved, reticulate- veined, hoary-pubescent, j-q'—j' long. Flowers fragrant, bright creamy yellow, in dense oblong pubescent spikes, on peduncles ^'-f ' long, and fascicled usually 2 or 3 together toward the ends of the branches ; calyx obscurely 5-lobed, puberulous on the outer surface, half as long as the petals slightly united at the base and pale- tomentose on the margins; stamens ^' long ; ovary long-stalked, covered with long pale hairs. Fruit fully grown at midsummer and hanging unopened on the branches until winter or the following spring, compressed, straight or slightly falcate, obliquely narrowed at the base into a short stalk, acute or rounded at the apex, more or less contracted between the seeds, 2'-4' long, ^'— |' wide, curling and often contorted when fully ripe, the valves thin and membranaceous, thick-margined, light brown, con- spicuously transversely reticulate-veined; seeds nearly orbicular, compressed, dark brown and lustrous, ^ in diameter, marked by small oval depressions. A tree, rarely 30° high, with a trunk 10'-12' in diameter, numerous spreading branches, and striately angled puberulous pale brown branchlets faintly tinged with LEGUMINOS^ 545 red and armed with stout recurved infrastipular spines flat at the base and \' long and broad. Bark of the trunk about 1' thick, furrowed, the surface separating^into thin narrow scales. "Wood heavy, very hard, strong, close-grained, durable, rich brown or red, with thin light yellow sapwood of 5 or 6 layers of annual growth. Distribution. Dry gravelly mesas, the sides of low canons and the banks of mountain streams; valley of the Rio Grande, western Texas, through southern New Mexico and Arizona to southern California; and in northern Mexico. 4. LEUCiENA, Benth. Trees or shrubs, with slender unarmed branches. Leaves persistent, abruptly bipin- nate, with numerous piunse and small leaflets in many pairs, petiolate, their petioles often furnished with a conspicuous gland below the lower pair of pinnse; stipules minute and caducous, or becoming spinescent and persistent. Flowers minute, white mostly perfect, sessile or short-pedicellate, in the axils of small peltate bracts villose at the apex, in globose many-flowered pedunculate heads, the peduncles in axillary fascicles or in leafless terminal racemes; calyx tubular-campanulate, minutely 5-toothed; petals 5, free, acute or rounded at the apex, narrowed at the base; stamens 10, free, inserted under the ovary, exserted; filaments filiform; anthers ob- long, versatile; ovary stipitate, contracted into a long slender style, with a minute terminal slightly^dilated stigma. Legume many-seeded, stipitate, linear, com- pressed, dehiscent; the valves thickened on the margins, rigid, membranaceous, con- tinuous within, their outer coat thin and papery, dark-colored, the inner rather thicker, woody, pale brown. Seeds obovate, compressed, transverse, the hilum near the base, suspended on long slender funicles ; seed-coat thin, crustaceous, brown and lustrous; embryo inclosed on its two sides by a thin layer of horny albumen; radicle slightly exserted. Leucffiua with nine or ten species is confined to the warmer parts of America from western Texas to Peru and Venezuela, and to the islands of the Pacific Ocean from New Caledonia to Tahiti, where one species has been recognized. Of the three indigenous species found in the territory of the United States, two are arborescent. Leuccena glauca, L., a small tree or shrub, cultivated in all warm countries, and a native probably of tropical America, is now naturalized on Key West, Florida. The generic name, from A.eux'*'*''^: refers to the color of the flowers. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Peduncles bibracteolate at the apex ; leaves 10-14-pinnate ; pinnae with 15-30 pairs of leaf- lets ; stipules beeoming- spinescent, persistent. 1. L. Greggii (E). Peduncles without bracts ; leaves 30-36-pinnate ; pinnje with 30-60 pairs of leaflets ; stipules minute, caducous. 2. L. pulverulenta (E). 1. Leucaena Greggii, Wats. Leaves 6'-7' long and broad, with slender rachises furnished on the upper side with a single elongated bottle-shaped gland between the stalks of each pair of pinme; pinnse 10-14, remote, short-stalked, with 15-30 pairs of leaflets; stipules gradually narrowed into long slender points, becoming rigid and spinescent, ^ to nearly y long and persistent for two or three years; leaflets lanceolate, acute or acumi- nate, often somewhat falcate, nearly sessile or short-petiolulate, full and rounded to- ward the base on the lower margin, nearly straight on the upper margin, gray-green, 546 TREES OF NORTH AMERICA ultimately nearly glabrous, \'-^' long, about |' wide, with narrow midveins and ob- scure lateral nerves. Flo"wers on slender pedicels, in heads |'-1' in diameter, on stout peduncles 2'-3' long furnished at the apex witli 2 irregularly 3-lobed bracts, and solitary or in pairs; calyx coated with hairs only near the apex, much shorter than the spatulate glabrous more or less boat-shaped petals; ovary villose, with a few short scattered hairs. Fruit G'-8' long, |'-^' wide, narrowed below into a short stout stipe, acuminate and crowned at the apex with the thickened style, ^'-f long, cine- reo-pubescent until nearly fully grown, becoming nearly glabrous at maturity, much compressed, with narrow wing-like margins; seeds conspicuously notched by the hilum, 1' long, Y wide. A tree, 15°-20° high, with a stem 4'-5' in diameter, and stout zigzag red-brown branchlets marked by numerous pale lenticels, coated at first with short spreading lustrous yellow deciduous hairs found also on the young petioles and lower surface of the unfolding leaflets, the peduncles of the flower-heads and their bracts. Bark about f ' thick, dark brown, divided into low ridges and broken on the surface into small closely appressed persistent scales. "Wood heavy, hard, close-grained, rich brown streaked with red, with thin clear sapwood. Distribution. Mountain ravines and the steep banks of streams; western Texas from the valley of the upper San Saba River to that of Devil's River; and southward into Mexico. 2. Leucaena pulverulenta, Benth. Mimosa. Leaves 4'-7' long and 3'-4' broad, with slender petioles usually marked by a large dark oblong gland between the somewhat enlarged base and the lowest pair of pinnae, 30-36 nearly sessile crowded pinnse, each with 30-60 pairs of leaflets, and minute caducous stipules; when they unfold covered like the peduncles and flower-buds with dense hoary tomentum, and at maturity puberulous on the petioles and rachises; leaflets linear, acute, rather oblique at the base by the greater development of the upper side, sessile or very short-petiolulate, pale bright green, \'-j' long. Flowers sessile, in heads ^' in diameter, appearing in succession as the branches grow from early spring to midsummer, on slender peduncles I'-l^' long and fascicled in the axils of upper leaves; calyx one fourth as long as the acute petals and like them pilose LEGU^IINOS^ 547 on the outer surface; stamens twice as long as the petals; ovary coated with long pale hairs. Fruit conspicuously thick-margined, 4:'-14' long, long-stalked, tipped with short straight or recurved points, 2 or 3 together on a common peduncle thick- ened at the apex; seeds ^y long. A tree, o0°-60° high, with a straight trunk 18'-20' in diameter, separating 20°-30° from the ground into slender spreading branches forming a loose round head, and branchlets at first more or less striately grooved and thickly coated with pulverulent caducous tomentum, becoming at the end of a few weeks terete, pale cinnamon-brown and puberulous. Bark about \' thick, bright cinnamon-brown, and roughened by thick persistent scales. Wood heavy, hard, very close-grained, rich dark brown, with thin clear yellow sap wood of 2 or 3 layers of annual growth; considered valu- able and sometimes manufactured into lumber. Distribution. Rich moist soil of river banks and the borders of lagoons and small streams; valley of the lower Rio Grande ; in Texas only for a few miles near its mouth ; more abundant from Matamoras to Monterey in Xuevo Leon; and southward to the neighborhood of the City of Mexico. Occasionally planted as a shade and ornamental tree in the towns of the lower Rio Grande valley. 5. PROSOPIS, L. Mesquite. Trees or shrubs, with branches without terminal buds and armed with geminate supra-axillary persistent spines, and small obtuse axillary buds covered with acute apiculate dark brown scales. Leaves alternate on branches of the year and fascicled in earlier axils, deciduous, bipinnate, with many-foliolate pinnae; petioles glandular at the apex, with a minute gland, and tipped with the small spinescent rachis; stipules linear, membranaceous or spinescent, deciduous. Flowers greenish white, sessile, in axillary pedunculate spikes; calyx campanulate, 5-toothed, or slightly o-lobed, de- ciduous; petals 5, connate below the middle or ultimately free, glabrous ortomentose on the inner surface toward the apex, sometimes puberulous on the outer surface; stamens 10, free, inserted with the petals on the margin of a minute disk adnate to the calyx-tube, those opposite the lobes of the calyx rather longer than the others; filaments filiform; anthers oblong, versatile, their connective tipped with a minute deciduous gland, the cells opening by marginal sutures; ovary stipitate, villose; 548 TREES OF NORTH AMERICA style filiform, with a minute terminal stigma. Legume linear, compressed or sub- terete, straight or falcate, or contorted or twisted into a more or less regular spiral, indehiscent; the outer coat thin, woody, pale yellow, inclosing a thick spongy inner coat of sweet pulp containing the seeds placed obliquely and separately inclosed, their envelopes forming nut-like joints. Seeds oblong, compressed, the hilum near the base; seed-coat crustaceous, light brown, lustrous; embyro surrounded by a layer of horny albumen; radicle short, slightly exserted. Prosopis is distributed in the New World from southern Kansas to Patagonia, and in the Old World is confined to tropical Africa, and to southwestern and tropi- cal Asia. Sixteen or seventeen species have been distinguished. Of the three species found in the territory of the United States two are small trees. Prosopis produces hard durable wood, particularly valuable as fuel, and the pods are used as fodder. The generic name is from irpoawirls, employed by Dioscorides as a name of the Burdock. CONSPECTUS OF THE NOKTH AMERICAN ARBORESCENT SPECIES. Legume compressed or ultimately convex, pinnae 12-10-foliolate. 1. P.juliflora(C,E,G,H). Legume thick, spirally twisted ; pinnae 10-16-foliolate. 2. P. pubescens (E, F, G, H). 1. Prosopis juliflora, DC. Mesquite. Honey Locust. Leaves with 2 or rarely 4 pinnae and slender terete petioles abruptly enlarged and glandular at the base; stipules linear, acute, membranaceous, deciduous. Flowers appearing in successive crops from May to the middle of July, fragrant, about ^^2' long, on short pedicels, in slender cylindrical spikes l^'-4' long, on stout peduncles ^'-|' in length; calyx glabrous or puberulous, about one fourth as long as the narrowly oblong acute petals glabrous or puberulous on the outer surface and covered on the inner surface toward the apex with hoary tomentum; stamens twice as long as the corolla, the dark-colored connective of the anther-cells furnished at the apex with a stalked gland; ovary short-stalked, clothed with silky hairs. Fruit in drooping clusters, linear, at first flat, becoming subterete at maturity, constricted LEGUMINOS^ 549 between the 10-20 seeds, straight or falcate, contracted at the ends, 4'-9' long, ^'-^' wide; seeds about i' long. A low tree, with a large thick taproot descending frequently to the depth of 40°- 50°, and furnished with radiating horizontal roots spreading in all directions and forming a dense mat, a trunk 6'-8' in diameter, divided a short distance above the ground into many irregularly arranged crooked branches forming a loose strag- gling head, and slender branchlets at first pale yellow-green, turning darker in their second year, furnished in the axils of the leaves of their first season with short spur-like excrescences covered with chafPy scales, and armed with stout straight terete supra-axillary persistent spines ^'-2' long, or rarely unarmed; more often a shrub, with numerous stems only a few feet high. Bark of the trunk thick, dark reddish brown, divided by shallow fissures, the surface separating into short thick scales. "Wood heavy, close-grained, rich dark brown or sometimes red, with thin clear yellow sapwood; almost indestructible in contact with the soil, and largely used for fence-posts, railway-ties, the underpinnings of buildings, and occasionally in the manufacture of furniture, the fellies of wheels, and the pavements of city streets; the best fuel of the region, and largely made into charcoal. The ripe pods supply Mexicans and Indians with a nutritious food, and are devoured by most herbivorous animals. A gum, resembling gum-arabic, exudes from the stems. Distribution. Western Texas and eastern New Mexico, and on the island of Jamaica ; eastward and westward diverging into two extreme forms. These are Prosopis juliflora, var. glandulosa, Sarg. Leaves with distant linear mostly acute glabrous dark green leaflets often 2' long and V~i' wide. Flowers with a usually glabrous calyx. A round-topped tree, often 20° high, with a trunk a foot in diameter, and long gracefully drooping branches forming a symmetrical round-topped head. Distribution, Eastern Texas to southern Kansas, and southward into northern Mexico. The common Mesquite of eastern Texas; reappearing with rather shorter and more crowded leaflets in Arizona, southern California, and Lower California. 550 TREES OF NORTH AMERICA Prosopis juliflora, var. velutina, Sarg. Leaves 5'-6' long, often fascicled, cinereo-pubescent, with short petioles and 12- 22 pairs of oblong or linear-oblong obtuse or acute crowded pale green leaflets \'-^' long. Flowers in densely-flowered spikes 2'-3' long; calyx villose. ''if A tree, often 50° high, with a trunk 2° in diameter, covered with rough dark brown bark, and heavy irregularly arranged usually crooked branches. Distribution. Hot valleys of southern Arizona and Sonora. 2. Prosopis pubesoens, Benth. Screvr Bean. Screw Pod Mesquite. Leaves canescently pubescent, 2'-3' long, with slender petioles ^-f in length, and pinnae l^'-2' long and 10-16-f oliolate ; stipules spinescent, deciduous; leaflets 5IS^ oblong or somewhat falcate, acute, sessile or short-petiolulate, often apiculate, con- spicuously reticulate-veined, ^-f long, ^' wide. Flowers beginning to open in early spring, and produced in successive crops from the axils of minute scarious bracts, in dense or interrupted cylindrical spikes 2'-3' long ; calyx obscurely 5-lobed, pubescent on the outer surface, one third to one fourth as long as the narrow acute petals coated on the inner surface near the apex with thick white tomentum, LEGUMINOS^ 551 and slightly puberulous on the outer surface; ovary and young fruit hoary-tomen- tose. Fruit ripening throughout the summer and falling in the autumn, in dense racemes, sessile, twisted with from 12-20 turns into a narrow straight spiral l'-2' long; seeds -^q' long. A tree, 25°-30° high, with a slender trunk sometimes a foot in diameter, and terete branches canescently pubescent or glabrate when they first appear, becoming glabrous and light red-brown in their third year, and armed with stout spines ^'-^' long. Bark of the trunk thick, light brown tinged with red, separating in long thin persistent ribbon-like scales. Wood heavy, exceedingly hard, close-grained, not strong, light brown, with thin lighter colored sapwood of 6 or 7 layers of annual growth; used as fuel and occasionally for fencing. The sweet, nutritious legumes are used for fodder. Distribution. Sandy or gravelly bottom-lands; valley of the Rio Grande in western Texas, and through New Mexico and Arizona to southern Utah and Nevada, and to San Diego County, California, and northern Mexico; attaining its largest size in the United States in the valleys of the lower Colorado and Gila rivers, Arizona. 6. CERCIS, L. Trees or shrubs, with scaly bark, slender unarmed branchlets prolonged by an upper axillary bud, marked by numerous minute pale lenticels, and in their first winter by small elevated horizontal leaf-scars showing the ends of two large fibro- vascular bundles, and small scaly obtuse axillary buds covered by imbricated ovate chestnut-brown scales. Leaves simple, entire, 5-7-nerved, with prominent nerves, long-petiolate, deciduous; their petioles slender, terete, abruptly enlarged at the apex; stipules ovate, acute, small, membranaceous, caducous. Flowers appearing in early spring before or with the leaves on thin jointed pedicels, in simple fascicles or racemose clusters produced on branches of the previous or earlier years, or on the trunk, with small scale-like bracts often imbricated at the base of the inflores- cence, and minute bractlets; calyx disciferous, shortly turbinate, purplish, persistent, the tube oblique at the base, campanulate, enlarged on the lower side, 5-toothed, the short broad teeth imbricated in the bud; corolla subpapilionaceous ; petals nearly equal, rose color, oblong-ovate, rounded at the apex, unguiculate, slightly auricled on one side of the base of the blade, the upper one slightly smaller and inclosed in the bud by the wings encircled by the broader slightly imbricated keel- petals; stamens 10, inserted in 2 rows on the margin of the thin disk, free, decli- nate, those of the inner row opposite the petals and rather shorter than the others; filaments enlarged and pilose below the middle, persistent until the fruit is grown; anthers uniform, oblong, attached on the back near the base; ovary short-stalked, inserted obliquely in the bottom of the calyx-tube; style filiform, fleshy, incurved, with a stca: obtuse terminal stigma; ovules 2-ranked, attached to the inner angle of the c-^'ary. Legume stalked, oblong or broadly linear, straight on the upper, curveo on the lower edge, acute at the ends, compressed, tipped with the thickened remuants of the style, many-seeded, 2-valved, the valves coriaceo-membranaceous, Fir4,ny-veiued, tardily dehiscent by the dorsal and often by the wing-margined ventral ^juture, dark red-purple and lustrous at maturity. Seeds suspended transversely on ^ slender f unicles, ovate or oblong, compressed, the small depressed hilum near the apex; seed-coat crustaceous, bright reddish brown; embryo surrounded by a thin layer of horny albumen, compressed ; cotyledons oval, flat, the radicle short, straight or obliquely incurved, slightly exserted. 552 TREES OF NORTH AMERICA Cercis is confined to eastern and western North America, southern Europe, and to southwestern, central, and eastern Asia. Of the seven species now distinguished, three occur in North America. Two of these are arborescent. The generic name is from KcpKls, the Greek name of the European species, from a fancied resemblance of the fruit to the weaver's implement of that name. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Flowers in sessile clusters ; leaves ovate, acute, cordate or truncate at the base. 1. C. Canadensis (A, C). Flowers fascicled or slightly racemose ; leaves reniform. 2. C. Texensis (C). 1. Cercis Canadensis, L. Redbud. Judas-tree. Leaves broadly ovate, acute or acuminate and often abruptly contracted at the apex into short broad points, truncate or more or less cordate at the base, entire, glabrous with the exception of axillary tufts of white hairs, or sometimes more or less pubescent below, 3'-5' long and broad, turning in the autumn before falling bright clear yellow; their petioles 2'-5' long. Flo vomers ^' long, on pedicels J'-^' in length and fascicled 4-8 together. Fruit fully grown in the south by the end of May and at the north at midsummer, and then pink or rose color, 2^'-3^' long, fall- ing late in the autumn or in early winter; seeds about ^' long. A tree, sometimes 40°-50° high, with a straight trunk usually separating 10°~12° from the ground into stout branches covered with smooth light brown or gray bark, and forming an upright or often a wide flat head, and slender glabrous somewhat angled branchlets, brown and lustrous at first, becoming dull and darker the follow- ing year and ultimately dark or grayish brown. Bark of the trunk about ^' thick and divided by deep longitudinal fissures into long narrow plates, the bright red- brown surface separating into thin scales. Wood heavy, hard, not strong, close- grained, rich dark brown tinged with red, with thin lighter colored sapwood of 8-10 layers of annual growth. Distribution. Borders of streams and rich bottom-lands, forming, especially west of the Alleghany Mountains, an abundant undergrowth to the forest; valley of the Delaware River, New Jersey, southward to the shores of Tampa Bay and to northern Alabama and Mississippi, and westward to southern Ontario, eastern Nebraska, the LEGUMINOS^ 553 eastern borders of the Indian Territory, Louisiana, and the valley of the Brazos River, Texas; and on the Sierra Madre of Nuevo Leon; common and of its largest size in southwestern Arkansas, the Indian Territory and eastern Texas, and in early spring a conspicuous feature of the landscape. Often cultivated as an ornamental tree in the northeastern states, and occasionally in western Europe. 2. Cercis Texensis, Sarg. Redbud. Leaves reniform, when they appear light green and slightly pilose, and at matur- ity subcoriaceous, dark green and lustrous on the upper, paler, glabrous or pubescent on the lower surface, and 2'-3' in diameter; their petioles 1^-2' long. Flowers about ^' long, on slender pedicels ^'-f' in length and fascicled in sessile clusters, or occasionally in racemes. Fruit 2'-4' long, ^'-V wide; seeds i' long. A slender tree, occasionally 20° or rarely 40° high, with a trunk 6'-12' in diameter, and glabrous branchlets marked by numerous minute white lenticels, light reddish brown during their first and second years, becoming dark brown in their third sea- son; more often a shrub, sending up numerous stems and forming dense thickets only a few feet high. Bark of the trunk and branches thin, smooth, light gray. Wood heavy, hard, close-grained, brown streaked with yellow, with thin lighter colored sapwood of 5 or 6 layers of annual growth. Distribution. Limestone hills and ridges; neighborhood of Dallas, eastern Texas to the Sierra Madre of Nuevo Leon; common in the valley of the upper Colorado River; of its largest size on the mountains of northeastern Mexico. 7. GYMNOCLADUS, Lam. Trees, with stout unarmed blunt branches with a thick pith, prolonged by axillary buds, rough deeply fissured bark, thick fleshy roots, and minute buds depressed in pubescent cavities of the bark, 2 in the axil of each leaf, superposed, remote, the lower and smaller sterile and nearly surrounded by the enlarged base of the petiole, their scales 2, ovate, rounded at the apex, coated with thick dark brown tomentum, infolded one over the other, accrescent with the young shoots. Leaves deciduous, unequally bipinnate; pinnae many-foliolulate, with 1 or 2 pairs of the lowest reduced 554 TREES OF NORTH AMERICA to single leaflets; piniise and leaflets usually alternate; stipules foliaceous, early deciduous; leaflets membranaceous, ovate, entire, petiolulate. Flowers regular, dioecious, greenish white, long-pedicellate, the slender pedicels from the axils of long lanceolate scarious caducous bracts, bibracteolate near the middle; staniinate in a short terminal racemose corymb; pistillate in elongated terminal racemes, on pedicels much longer than those of the staminate flowers; calyx tubular, elongated, 10-ribbed, lined with a thin glandular disk, 5-lobed, lanceolate, acute, nearly equal, erect; petals 4 or 5, oblong, rounded or acute at the apex, pubescent, as long as the calyx-lobes or rather longer and twice as broad, inserted on the margin of the disk, spreading or reflexed; stamens 10, free, inserted with the petals, erect, included; filaments filiform, pilose, those opposite the petals shorter than the others; anthers oblong, uniform, small and sterile in the pistillate flower; ovary sessile or slightly stipitate, acute; styles short, erect, obliquely dilated into 2 broad lobes stigmatic on their inner surface, rudimentary or 0 in the sterile flower; ovules numerous, sus- pended from the angle opposite the posterior petals. Legume oblong, subfalcate, turgid or slightly compressed, several-seeded, 2-valved, tardily dehiscent, the thin tough woody valves thickened on the margins into narrow wings, pulpy between the seeds. Seeds ovoid or slightly obovoid, suspended by long slender funicles; seed-coat thick, bony, brown and opaque, of 3 layers; embryo surrounded by a thin layer of horny albumen; cotyledons ovate, orange-colored, thick and fleshy, the radicle short, erect. Gymnocladus, with two species, is confined to eastern North America and to south- ern China. Gymnocladus is slightly astringent and purgative, and the detersive pulp sur- rounding the seeds of the Asiatic species is used in China as a substitute for soap. The generic name, from yvfxvds and /cAaSos, relates to the stout branches destitute of spray. 1. Gymnocladus dioicus, K. Koch. Kentucky Coffee-tree. Leaves l°-3° long, 18-24' wide, obovate, 5-9 pinnate, the pinnae 6-14-foliolate, covered when they unfold with hoary tomentum except on the upper surface of the leaflets, their petioles abruptly and conspicuously enlarged at the base, at first hoary- tomentose, becoming glabrous at maturity, turning bright clear yellow in the autumn before falling; stipules lanceolate or slightly obovate, glandular-serrate toward the apex, \' long; leaflets ovate, acute, often mucronate, especially while young, wedge- shaped or irregularly rounded at the base, pink at first, soon becoming bronze-green and lustrous, glabrous on the upper surface with the exception of a few scattered hairs along the midribs, and at maturity membranaceous, obscurely veined, dark green above, pale yellow-green and glabrous below, with the exception of a few short hairs scattered along the narrow midribs, 2'-2i' long and V wide, or those replacing the lowest or occasionally the 2 lower pairs of pinnre sometimes twice as large. Flowers: inflorescence of the staminate tree 3'-4' long, the lower branches usually 3 or 4-flowered ; inflorescence of the pistillate tree 10'-12' long, the flowers on stout pedicels l'-2^' long or twice to five times as long as those of the staminate flowers; flowers hoary-tomentose in the bud; calyx §' long, conspicuously ribbed, covered on the outer surface when the flowers open with pale hairs and on the inner surface with hoary tomentum; petals keeled, pilose on the back, slightly grooved, tomentose on the inner surface; anthers bright orange color; ovary hairy. Fruit 6'-10' long, 1\'- 2' wide, dark red-brown, covered with a glaucous bloom, on stout stalks l'-2' long, LEGUMINOS^ 555 remainiug unopened on the branches throughout the winter; seeds separated by a thick layer of dark-colored sweet pulp, f ' long. A tree, 75°-110° high, with a trunk 2°-3° in diameter, usually dividing 10°-15° from the ground into 3 or 4 principal stems spreading slightly and forming a nar- row round-topped head, or occasionally sending up a tall straight shaft destitute of branches for 70°-80°, and branchlets coated at first with short dense pubescence faintly tinged with red, and bearing at their base the conspicuous orange-green obo- vate pubescent bud-scales 1' long at maturity, j-^' thick at the end of their first season, very blunt, dark brown, often slightly pilose, marked by orange-colored lenticels, and roughened by the large pale broadly heart-shaped leaf-scars displaying the ends of 3 or 4 conspicuous fibro-vascular bundles. Bark of the trunk -f'-l' thick, deeply fissured, dark gray tinged with red, and roughened by small persistent scales. Wood heavy although not hard, strong, coarse-grained, very durable in contact with the soil, rich light brown tinged with red, with thin lighter colored sapwood of 5 or 6 layers of annual growth; occasionally used in cabinet-making and for fence-posts, rails, and in construction. The seeds were formerly used as a substitute for coffee; a decoction of the fresh green pulp of the unripe fruit is used in homoeopathic practice. Distribution. Bottom-lands in rich soil; central Xew York and western Pennsyl- vania, through southern Ontario and southern Michigan to the valley of the Minnesota River, and to eastern Nebraska, eastern Kansas, southwestern Arkansas, the Indian Territory, and middle Tennessee; nowhere common. Occasionally cultivated in the gardens and parks of the eastern United States, and of northern and central Europe. 8. GLEDITSIA, L. Trees, with furrowed bark, slender terete slightly zigzag branchlets thickened at the ends and prolonged by axillary buds, thick fibrous roots, the trunk and branches often armed with stout simple or branched spines or abortive branches developed from supra-axillary or adventitious buds imbedded in the bark. Winter-buds minute, 3 or 4 together, superposed, the 2 or 3 lower without scales and covered by the scar left by the falling of the petiole, the upper larger, nearly surrounded by the base of the petiole and covered by small scurfy scales. Leaves long-petiolate, often fasci- cled in earlier axils, abruptly pinnate or bipinnate, the pinnse increasing in length b 556 TREES OF NORTH AMERICA from the base to the apex of the leaf, the lowest sometimes reduced to single leaflets, deciduous; stipules minute, caducous; leaflets membranaceous, their mar- gins irregularly crenate, without stipels. Flowers regular, polygamous, minute, green or white on short pedicels, in axillary or lateral simple or fascicled racemes, with minute scale-like caducous bracts; calyx campanulate, lined with the disk, 3-5-lobed, the narrow lobes nearly equal ; petals as many as the lobes of the calyx, nearly equal; stamens 6-10, inserted with the petals on the margin of the disk, exserted; filaments free, filiform, erect; anthers uniform, much smaller and abor- tive in the pistillate flower; ovary subsessile, rarely bicarpellary, rudimentary or 0 in the staminate flower; styles short; stigma terminal, more or less dilated, often oblique; ovules 2 or many, suspended from the angle opposite the posterior petal. Legume compressed, many-seeded, elongated, straight and indehiscent, or 1 or 2-seeded, ovate and tardily dehiscent. Seeds transverse, ovate to suborbicular, flattened, attached by long slender funicles; seed-coat thin, crustaceous, light brown; embryo surrounded by a layer of horny albumen, orange-colored; cotyledons sub- f oliaceous, compressed ; radicle short, erect, slightly exserted. Gleditsia is confined to eastern North America, where three species occur, south- western Asia, China, Japan, and west tropical Africa. It produces strong, durable, coarse-grained wood. In Japan the pods are used as a substitute for soap. The generic name is in honor of Johann Gottlieb Gleditsch (1714-1786), professor of botany at Berlin. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Legume linear-oblong, elongated, many-seeded, indehiscent. Legumes 12'-18' long, with pulp between the seeds ; ovary hoary-tomentose. 1. G. triacanthos (A, C). Legumes 4'-5' long, without pulp between the seeds. 2. G. Texana (C). Legume oval, oblique, 1 or 2-seeded, without pulp, tardily dehiscent ; ovary glabrous. 3. G. aquatica (C). 1. Gleditsia triacanthos, L. Honey Locust. Leaves 7'-8' long, 18-28-foliolulate or sometimes bipinnate, with 4-7 pairs of pinnae, those of the upper pair 4'-5' long, when they unfold hoary-tomentose, and at maturity pubescent on the petioles and rachises, the short stout petiolules, and the under surface of the midribs of the leaflets, turning in the autumn pale clear yellow; leaflets lanceolate-oblong, unequal at the base, acute or slightly rounded at the apex, remotely crenulate-serrate, dark green and lustrous above, dull yellow-green below, I'-l^' long and ^' wide. Flowers appearing in June when the leaves are nearly fully grown from the axils of leaves of previous years; staminate in short many- flowered pubescent racemes 2'-2^' long and often clustered; pistillate in slender graceful few-flowered usually solitary racemes 2^'-3^' long; calyx campanulate, narrowed at the base, the acute lobes thickened, revolute and ciliate on the margins, villose with pale hairs, rather shorter than and half as wide as the erect acute petals; filaments pilose toward the base; anthers green; pistil rarely of 2 carpels, hoary- tomentose. Fruit 12'-18' long, dark brown, pilose and slightly falcate, with straight thickened margins, 2 or 3 together in short racemes on stalks I'-l^ long, their walls thin and tough, contracting in drying by a number of corkscrew twists, and falling late in the autumn or early in winter; seeds oval, y long, separated by thick succulent pulp. LEGUMINOS^ 557 A tree, 75°-140° high, with a trunk 2°-3° or occasionally 5°-6° in diameter, slender spreading somewhat pendulous branches forming a broad open rather flat- topped head, brauchlets marked by minute lenticels, at first light reddish brown and slightly puberulous, soon becoming lustrous and red tinged with green and in their second year greenish brown, and armed with stout rigid long-pointed simple or 3-forked spines at first red and bright chestnut-brown when fully grown, or rarely unarmed. Bark of the trunk ^-f thick, divided by deep fissures into long narrow longitudinal ridges and roughened on the surface by small persistent scales. "Wood hard, strong, coarse-grained, very durable in contact with the ground, red or bright red-brown, with thin pale sapwood of 10-12 layers of annual growth; largely used for fence-posts and rails, for the hubs of wheels, and in construction. Distribution. Borders of streams and intervale lands, in moist fertile soil, usually growing singly or occasionally covering almost exclusively considerable areas; less commonly on dry sterile gravelly hills; western slope of the Alleghany Mountains of Pennsylvania, westward through Ontario and Michigan to southeastern Minnesota, eastern Nebraska and Kansas, and the Indian Territory, and southward to northern Alabama and Mississippi and to the valley of the Brazos River, Texas; attaining its largest size in the valleys of small streams in southern Indiana and Illinois; now often naturalized in the region east of the Alleghany Mountains. Often cultivated as an ornamental and shade tree in all countries of temperate climates. 2. Gleditsia Texana, Sarg. Locust. Leaves 6'-7' long, with a slender rachis at first puberulous, ultimately glabrous, and 12-22-foliolulate, or often bipinnate, usually with 6 or 7 pairs of pinnae, the lower pairs frequently reduced to single large leaflets; leaflets oblong-ovate, often somewhat falcate, rounded or acute or apiculate at the apex, obliquely rounded at the base, finely crenately serrate, thick and firm in texture, dark green and lus- trous above, pale below, ^'-V long, with short petiolules coated while young, like the base of the slender orange-colored midribs, with soft pale hairs. Flo"wers appear- ing toward the end of April, the staminate dark orange-yellow, in slender glabrous often clustered racemes lengthening after the flowers begin to open and finally 3' -4' long; calyx campanulate, with acute lobes thickened on the margins, villose-pubescent and rather shorter and narrower than the puberulous petals; stamens with slender 558 TREES OF NORTH AMERICA filaments villose near the base and green anthers; pistillate flowers unknown. Fruit 4'-5' long, V wide, straight, much compressed, rounded and short-pointed at the apex full and rounded at the broad base, thin-walled, dark chestnut-brown, puberu- lous, slightly thickened on the margins, many-seeded, without pulp; seeds oval, compressed, dark chestnut-brown, very lustrous, ^' long. A tree, 100°-120° high, with a trunk rarely exceeding 2^° in diameter, ascending and spreading branches forming a narrow head, and comparatively slender more or less zigzag branchlets roughened by numerous small round lenticels, light orange- brown when they first appear, gray or orange-brown during their first year, ashy gray the following season, and unarmed. Bark thin and smooth. Distribution. Only in a single grove on the bottom-lands of the Brazos River, near the town of Brazoria, Texas. 3. Gleditsia aquatica. Marsh. Water Locust. Leaves 5'-8' long, 12-18-foliolate, or doubly pinnate, with 3 or 4 pairs of pinnae; leaflets ovate-oblong, usually rounded or rarely emarginate at the apex, unequally wedge-shaped at the base, slightly and remotely crenate or often entire below the middle, glabrous with the exception of a few hairs on the short stout petiolules, dull yellow-green and lustrous on the upper surface, dark green on the lower surface, about 1' long and ^'-|' wide. Flowers appearing in May and June after the leaves are fully grown on short stout purple puberulous pedicels, in slender racemes 3'^' long; calyx-tube covered with orange-brown pubescence, the lobes narrow, acute, slightly pilose on the two surfaces, as long as but narrower than the green erect petals rounded at the apex; filaments hairy toward the base; anthers large, green; ovary long-stipitate, glabrous. Fruit fully grown in August, pendent in graceful racemes, obliquely ovate, long-stalked, crowned with a short stout tip, thin, V-2' long, V broad, without pulp, its valves thin, tough, papery, bright chestnut-brown, lustrous and some- what thickened on the margins; seeds 1 or 2, flat, nearly orbicular, orange-brown, i' in diameter. A tree, 50°-60° high, with a short trunk 2°-2^° in diameter, usually dividing a few feet from the ground into stout spreading often contorted branches forming a wide irregular flat-topped head, and glabrous orange-brown branchlets becoming in their second year gray or reddish brown, marked by occasional large pale lenticels, LEGUMINOS^ 559 and armed with usually flattened simple or short-branched straight or falcate sharp rigid spines 3'-5' long, about ^' broad at the base, and dark red-brown and lus- trous. Bark i' -\' thick, smooth, dull gray or reddish brown, and divided by shallow fissures into small plate-like scales. Wood heavy, very hard and strong, coarse- grained, rich bright brown tinged with red, with thick light clear yellow sapwood of about 40 layers of annual growth. Distribution. South Carolina to Matanzas Inlet, Florida, through the coast region of the Gulf states to the valley of the Brazos River, Texas, and northward through western Louisiana and southern Arkansas to middle Kentucky and Ten- nessee, the bottoms of the Mississippi at La Pointe, Saint Charles County, Missouri, and western and southern Illinois and Indiana; rare east of the Mississippi River and only in deep river swamps; very abundant and of its largest size westward on rich bottom-lands; and in Louisiana and Arkansas often occupying extensive tracts submerged during a considerable part of the year. 9. PARKINSONIA, L. Trees or shrubs, with smooth thin bark, and terete branches often armed with simple or 3-forked spines. Leaves abruptly bipinnate, alternate or fascicled from earlier axils, short-petiolate, the rachis short and spinescent, with 2-4 secondary elongated rachises bearing numerous minute opposite entire leaflets without stipels; stipules short, persistent and spinescent, or caducous. Flowers on thin elongated jointed pedicels from the axils of minute caducous bracts, in slender axillary solitary or fascicled racemes; calyx short-campanulate, 5-lobed, the lobes slightly imbricated or subvalvate in the bud, narrow, membranaceous, nearly equal, becoming reflexed, deciduous; petals bright yellow, unguiculate, much longer than the lobes of the calyx, spreading, the upper one rather broader than the others and glandular at the base of the claw; stamens 10, inserted in 2 rows on the margin of the thin disk, free, slightly declinate, those of the outer row opposite the sepals and rather longer than the others; filaments villose below the middle, the upper one enlarged at the base and gibbous on the upper side; anthers uniform, versatile; ovary short-stipi- tate, pilose, contracted into a slender filiform incurved style infolded in the bud and tipped with a minute stigma; ovules numerous, suspended from the inner angle of the ovary. Legume linear, torulose, acuminate at the ends, 2-valved, the valves thin 560 TREES OF NORTH AMERICA aud coriaceous, convex by the growth of the seeds, contracted between and beyond them, longitudinally striate. Seeds oblong, suspended longitudinally on slender fuuicles; hilum minute, near the apex; seed-coat thin, crustaceous, light brown; embryo inclosed on the sides only by thick layers of horny albumen; cotyledons oval, flat, slightly fleshy, the radicle very short and straight. Parkinsonia, with three species, is confined to the warm parts of America and to southern Africa. Two species occur within the limits of the United States. The genus is named for John Parkinson (1567-1650), an English botanical author and herbalist to James I. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Flowers in long' slender racemes ; petals imbricated in the bud ; stamens shorter than the petals; legumes 1-8-seeded 12-18' long; leaves 7'-8' long; rachises of the pinnae flat, wing-margined, 50-60-foliolate ; branches with spines. 1. P. aculeata (G, H). Flowers in short racemes ; petals valvate in the bud ; stamens long-er than the petals ; legumes 1-2 -seeded ; leaves about 1' long; rachises of the pinnae terete, 8-12-foliolate ; branches without spines. 2. P. microphylla (G, H). 1. Parkinsonia aculeata, L. Retama. Horse Bean. Leaves of two forms, short-petiolate, persistent, light green and glabrous, except for a few hairs on the lower part of the young secondary rachises, 12'-18' long; primary leaves on young branches, with 2-4 pinnae, and spinescent rachises developing into stout ridged persistent short-pointed chestnut-brown spines I'-l^ long and marked near the base by the prominent scars left by the fall of the pinnse ; their stipules per- sistent, appearing as lateral spiny branches on the spines ; secondary leaves fascicled //^^<3 from the axils of the primary leaves, with short terete spinescent rachises and 2 pinnse; pinnae flat, 7'~8' long, wing-margined, acute at the apex, with 25-30 pairs of ovate or obovate petiolulate leaflets, t^^'-|' long. Flowers appearing on the grow- ing branches during the spring and summer, and in the tropics throughout the year, in slender erect racemes 5'-6' long; petals bright yellow, the upper one marked LEGUMINOS^ 561 near the base on the inner surface with conspicuous red spots ; stamens shorter than the petals. Fruit hanging in graceful racemes, 2'-4/ long, long-pointed, dark orange-brown, slightly pilose, compressed between the remote seeds; seeds ^ long, nearly terete, with thick albumen and bright yellow embryos. A tree, 18°-30° high, with a trunk sometimes a foot in diameter, usually separating 6°-8° from the ground into slender spreading somewhat pendulous branches forming a wide graceful head, and slightly zigzag branchlets puberulous and yellow-green during their first season, becoming glabrous, gray or light orange color and rough- ened by lenticels in their second and third years. Bark of the trunk about ^' thick, brown tinged with red, the generally smooth surface broken into small persistent plate-like scales. "Wood heavy, hard, close-grained, ^with very thick lighter colored sapwood tinged with yellow. Distribution. Low moist soil, valley of the lower Rio Grande, Texas; common in northern Mexico and in the valley of the Colorado River, Arizona, and in Lower California; naturalized on Key West, the Bahamas, the West Indian islands, and in many other tropical countries. Cultivated in most warm countries as an ornament of gardens, and to form hedges. 2. Parkinsonia microphylla, Torr. Leaves 1' long, pale, densely tomentose when they unfold, pubescent at maturity, deciduous at the end of a few weeks; rachises short, rarely spinescent, or more com- monly 0; leaflets in 4-6 pairs, distant, entire, sessile, broadly oblong or nearly orbic- ular, obtuse or somewhat acute at the apex, oblique at the base, ^ long; stipules ff^ i4-(o^ caducous. Flowers opening in May or early June before the leaves, on slender pedicels, in racemes 1' or less long in the axils of leaves of the previous year, pale yellow; stamens longer than the petioles. Fruit persistent on the branches for at least a year, frequently 1 or 2, rarely 3-seeded, 2'-3' long, slightly puberulous, espe- cially toward the base, with a long acuminate often falcate apex; seeds compressed, y long, with bright green embryos. An intricately branched tree, occasionally 20°-25° high, with a trunk a foot in diameter, and stout pale yellow-green rigid branchlets terminating in stout spines, covered at first with deciduous tomentum, slightly puberulous during their first and second seasons, and often marked by the persistent scales of undeveloped 562 TREES OF NORTH AMERICA buds. Bark dark orange color, generally smooth, although sometimes roughened by scattered clusters of short pale gray horizontal ridges, becoming on old trees V thick. Wood heavy, hard, close-grained, dark orange-brown streaked with red, with thick light brown or yellow sapwood of 25-30 layers of annual growth. Distribution. Deserts of southern Arizona and adjacent regions of California, Sonora, and Lower California; known to attain the size and habits of a tree only in the neighborhood of Wickeuburg, Arizona. 10. CERCIDIUM, Tulasne. Trees or shrubs, with stout tortuous branches, covered with bright green bark and armed with slender straight axillary spines. Leaves alternate, abruptly pinnate, petiolate, early deciduous; pinnae 2 or occasionally 3, 7-8-f oliolate ; stipules incon- spicuous or 0; leaflets ovate or obovate, without stipels. Flowers in short few- flowered axillary racemes, solitary or fascicled, with minute membranaceous early deciduous bracts; calyx 5-lobed, the lobes equal, acute, reflexed at maturity, their margius scarious, slightly revolute; petals orbicular or oblong, unguiculate, bright yellow, the upper one broader and longer clawed than the others, slightly auriculate at the base of the blade, the claw conspicuously glandular at the base; stamens 10, inserted with the petals on the margin of the disk, free, slightly declinate, exserted; filaments filiform, pilose below, the upper one enlarged at the base and gibbous on the upper side; anthers uniform, ovate, versatile; ovary short-stalked, inserted at the base of the calyx-tube; styles slender, involute, infolded in the bud, with minute terminal stigmas; ovules suspended from the angle of the ovary opposite the pos- terior petal. Legume linear-oblong, compressed or somewhat turgid, straight or slightly contracted between the seeds, thickened on the margins, the ventral suture acute, or slightly grooved, tipped with the remnants of the style, tardily dehiscent, 2-valved, the valves membranaceous or subcoriaceous, obliquely veined. Seeds sus- pended longitudinally on long slender funicles, ovate, compressed, the minute hilum near the apex; seed-coat thin, crustaceous; embryo compressed, light green, covered on the sides only by a thin layer of horny albumen; cotyledons oval, flat, rather fleshy; radicle very short, erect, near the hilum. Cercidium is confined to the warmer parts of the New World, where it is dis- tributed with four or five species from the southern borders of the United States through Mexico, Central America, and Venezuela to Mendoza. Of the three species found within the territory of the United States two are small trees. Cercidium produces hard wood sometimes used as fuel. The generic name, from KepKiSiov, refers to the fancied resemblance of the legume to the weaver's instrument of that name. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Leg-ume compressed, with straight margins ; leaflets green, slightly glandular. 1. C. floridum (E). Legume somewhat turgid, the margins often slightly contracted between the seeds ; leaf- lets glaucous. 2. C. Torreyanum (G, H). 1. Cercidium floridum, Benth. Green-barked Acacia. Leaves I'-l^ long, with 2 or rarely 3 pinnae, broad pubescent petioles and rachises, and oval or somewhat obovate dull green puberulous minutely glandular leaflets LEGUMINOS^ 563 about ylj' in length, rounded or slightly emarginate at the apex, and when they un- fold covered on the lower surface with scattered white hairs; their petiolules short, stout, pubescent, appearing in April and deciduous in October. Flowers opening with the leaves, and produced in successive crops during three or four months, ¥ in diameter, on slender pedicels, in 4 or 5-flowered racemes l^'-2' long, with small acute minute membranaceous caducous bracts. Fruit compressed, oblong, straiglit or slightly falcate, acute, narrow and acutely margined on the ventral suture, gla- brous, 2 or 3-seeded, 2'-2y long, i' broad, tardily dehiscent, the valves papery, yellow tinged with brown on the outer surface, and bright orange color within; seeds i' long. A tree, 18°-20° high, with a short crooked trunk 8'-10' in diameter, stout spread- ing branches covered with thin smooth bright green bark, forming a low wide head, W^S and branchlets light or dark olive-green, slightly puberulous at first, soon glabrous, marked by occasional black lenticels, and armed with slender spines V or less long. Bark -^-^' thick, light brown tinged with red, with numerous short horizontal light gray ridge-like excrescences. Wood light, soft, close-grained, pale yellow tinged with green, with thick lighter colored sapwood. Distribution. Shores of Matagorda Bay to Hidalgo County, Texas, and in northern Mexico; not common in Texas; very abundant and a conspicuous feature of vegetation in Mexico from the mouth of the Rio Grande to the foothills of the Sierra Madre. 2. Cercidium Torreyanum, Sarg. Green-barked Acacia. Palo Verde. Leaves few and scattered, V long, at first hoary-tomentose, puberulous at matur- ity, with slender petioles and 2 pinnae, each with 2 or 3 pairs of oblong obtuse glau- cous leaflets narrowed toward the somewhat oblique base, iV~6' ^^ng, unfolding in March and April and falling almost immediately when fully grown. Flowers f in diameter, on slender pedicels, in 4 or o-flowered racemes, about V long, with small acute membranaceous caducous bracts. Fruit ripening and falling in July, 3'-4' long, 2-8-seeded, slightly turgid, often somewhat contracted between the seeds, frequently grooved on the ventral suture; seeds turgid, i' long. A low intricately branched tree, leafless for most of the year, 25°-30° high, with a short often inclining trunk 18'-20' in diameter, stout branches covered with yellow 564 TREES OF NORTH AMERICA fr^ or olive-green bark, forming a narrow upright irregular head, and glabrous slightly zigzag light yellow or pale olive-green and glaucous branchlets armed with thin straight or curved spines Y long. Bark thin, smooth, pale olive-green, becoming near the base of old trunks reddish brown, ^' thick, furrowed and separating into thick plate-like scales. "Wood heavy, not strong, soft, close-grained, light brown, with clear light yellow sapwood. Distribution. Sides of low canons and depressions, and sandhills of the desert; valley of the lower Gila River, Arizona, to the Colorado Desert of southern Cali- fornia, and southward into Sonora and Lower California. 11. SOPHORA, L. Trees or shrubs, with minute scaly buds, unarmed terete branches prolonged by an upper axillary bud, and fibrous roots. Leaves unequally pinnate, with numer- ous small or few and ample membranaceous or coriaceous leaflets; stipules minute, deciduous; stipels often 0. Flowers in terminal or axillary racemes, with linear mi- nute deciduous bracts and bractlets; calyx broadly eampanulate, often slightly tur- binate or obconic at the base, obliquely truncate, the short teeth nearly equal or the 2 upper subconnate and often somewhat larger than the others ; disk cupuliform, gland- ular, adnate to the calyx-tube; corolla papilionaceous; petals white or violet blue, unguiculate; standard obovate or orbicular, usually shorter than the keel-petals; wings oblong-oblique; keel-petals oblong, suberect, as long as the wings or rather longer, overlapping each other at the back, barely united; stamens free, or 9 of them slightly united at the base, uniform; anthers attached on the back near the middle; ovary short-stipitate, contracted into an incurved style, with a minute truncate or slightly rounded capitate stigma; ovules numerous, suspended from the inner angle of the ovary, superposed, amphitropous. Legume terete, much contracted between the seeds, woody or fleshy, usually many-seeded, each seed inclosed in a separate cell, indehiscent. Seed, oblong or oval, sometimes somewhat compressed ; seed-coat thick, membranaceous or crustaceous ; cotyledons thick and fleshy; radicle short and straight or more or less elongated and incurved. Sophora is scattered over the warmer parts of the two hemispheres, with about twenty species; of the six North American species two are small trees. Several of the species produce valuable wood, and from the pods and flower-buds of the Chinese Sophora Japonica, L., a dye is obtained used to dye white cloth yellow and blue cloth LEGUMINOS^ 565 green. This tree is often cultivated as an ornament of parks and gardens in north- ern China, the eastern United States, and in western, central, and southern Europe. The generic name is from Sophera, the Arabic name of some tree with pea-shaped flowers. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Flowers violet blue, in terminal racemes ; the upper calyx-lobes larger than the others and united ; legume woody ; seeds without albumen ; leaves coriaceous, persistent. 1. S. secundiflora (C, E, H). Flowers white, iu axillary racemes ; calyx-lobes equal ; legume fleshy ; seeds with albumen ; leaves membranaceous, deciduous. 2. S. amuis (C). 1. Sophora secundiflora, DC. Frijolito. Coral Bean. Leaves persistent, covered at first, especially on the lower surface of the leaflets, with silky white hairs, and at maturity 4'-6' long, with stout puberulous petioles slightly enlarged at the base, and 7-9 elliptical-oblong leaflets rounded, emarginate or sometimes mucronate at the apex, gradually contracted at the base into short thick (^ petiolules, coriaceolis, lustrous and dark yellow-green above, rather paler below, glabrous or sometimes slightly puberulous along the under surface of the stout mid- ribs, entire, with thickened margins, conspicuously reticulate-veined, l'-2^' long, i'_li' wide, without stipels. Flowers with a powerful and delicious fragrance, ap- pearing with the young leaves in very early spring, V long, on stout pedicels some- times 1' iu length, from the axils of subulate deciduous bracts ^' or more long, and bibracteolate, with 2 acute bractlets, in terminal 1-sided canescent racemes 2'-3' in length ; calyx campanulate, slightly enlarged on the upper side, the 3 lower teeth triangular and nearly equal, the 2 upper rather larger and united almost through- out; petals shortly unguiculate, violet blue, the broad erect standard marked on the inner surface near the base with a few darker spots; ovary coated with long silky white hairs. Fruit terete, I'-T long, ^' thick, stalked, crowned with the thickened remnants of the style, covered with thick hoary tomentum, indehiscent, 1-8-seeded, with hard woody walls ^' thick; seeds oblong, rounded, |' long, bright scarlet, with a small pale hilum and a bony seed-coat; albumen 0; cotyledons thick, orange- colored, filling the cavity of the seed; radicle short and straight. 566 TREES OF NORTH AMERICA A tree, 25°-35° high, with a straight trunk G'-S' in diameter, separating several feet from the ground into a number of upright branches forming a narrow head, and branchlets coated at first with fine hoary tomentum, becoming glabrous or nearly glabrous in their second year and pale orange-brown; more often a shrub, with low clustered stems. "Wood very heavy, hard, close-grained, orange-colored, streaked with red, with thick bright yellow sapwood of 10-12 layers of annual growth. The seeds contain a poisonous alkaloid, sophorin, with strong narcotic properties. Distribution. Borders of streams, forming thickets or small groves, in low rather moist limestone soil; shores of Matagorda Bay, Texas, to the mountain carious of New Mexico, and to those of Nuevo Leon and San Luis Potosf; of its largest size in the neighborhood of Matagorda Bay ; south and west, especially west of the Pecos River, rarely more than a shrub. 2. Sophora affinis, T. & G. Leaves deciduous, coated when they unfold with hoary pubescence, 6'-9' long, with slender puberulous petioles, and 13-19 elliptical obtuse or retuse slightly mu- cronate leaflets contracted at the base into short stout pubescent petiolules, entire or with slightly wavy thickened margins, membranaceous, pale yellow-green and gla- brous above, paler and covered with scattered hairs or nearly glabrous below, I'-l^' long, and ^' wide, with prominent orange-colored midribs, slenderprimary veins, and conspicuous reticulate veinlets. Flo"wers ^' long, appearing in early spring with the young leaves, on slender canescent pedicels nearly ^' long, from the axils of minute deciduous bracts, in slender pubescent semipendent racemes, 3'-5^ long, from the axils of the leaves at the ends of the branches ; calyx short-campanulate, abruptly narrowed at the base, somewhat enlarged on the upper side, slightly pubescent. especially on the margins of the short nearly triangular teeth; petals shortly unguiculate, white tinged with rose color; standard nearly orbicular, slightly emar- ginate, reflexed, as long and twice as broad as the ovate auriculate wings and keel- petals; ovary conspicuously stipitate, villose. Fruit ^'-3' long, indehiscent, black, more or less pubescent, crowned with the thickened remnants of the style, 4-8- seeded, or rarely 1-seeded and then subglobose, with thin fleshy rather sweet walls, persistent on the branches during the winter; seeds oval, slightly compressed, with LEGUMINOSiE 667 a thin crustaceous bright chestnut-brown seed-coat; cotyledons surrounded by a thin layer of horny albumen, bright green; radicle long and incurved. A tree, 18°-20° high, with a trunk 8'-10' in diameter, dividing into a number of stout spreading branches forming a handsome round-topped head, slender terete slightly zigzag branchlets at first orange-brown or dark brown and slightly puberu- lous, bright green marked by narrow brown ridges, and in their second year by the elevated tomentose leaf-scars. Winter-buds depressed, minute, almost surrounded by the base of the petioles, with broad scales coated on the outer surface with dark brown tomentum and on the inner surface with thicker pale tomentum, and per- sistent on the base of the growing shoot. Bark of the trunk about 1' thick, dark reddish brown, and broken into numerous oblong scales, the surface exfoliating in thin layers. Wood heavy, very hard and strong, light red in color, with thick bright clear yellow sapwood of 10-12 layers of annual growth. Distribution. Usually on limestone hills, or on the borders of streams, ravines, or depressions in the prairie, often forming small groves; valley of the Arkansas River, Arkansas, to that of the San Antonio, Texas, and westward in Texas to the upper waters of the Colorado River. 12. CLADRASTIS, Raf. A tree, with copious watery juice, smooth gray bark, slender slightly zigzag terete branchlets without terminal buds, fibrous roots, and naked axillary buds, 4 together, superposed, flattened by mutual pressure into an acuminate cone, and inclosed col- lectively in the hollow base of the petiole, the largest and upper one only devel- oping, the lowest minute and rudimentary. Leaves unequally pinnate, petiolate, with stout terete petioles abruptly enlarged at the base, 7-11-foliolate, deciduous; leaflets usually alternate, broadly oval, the terminal one rhombic-ovate, contracted at the apex into short broad points, wedge-shaped at the base, entire, petiolulate, without stipels, covered at first like the young shoots with fine silvery pubescence, or on the midribs with lustrous brown tomentum, at maturity thin, glabrous, dark yellow-green on the upper, pale on the lower surface, the midribs and numerous primary veins conspicuous, light yellow below; stipules 0. Flowers on slender pu- berulous pedicels, bibracteolate near the middle, with scarious caducous bractlets, in long gracefully nodding stalked terminal panicles, the lower branches racemose, and often springing from the axils of 1-flowered pedicels, the main axis slightly zigzag, and, like the branches, covered at first with a glaucous bloom and slightly pilose; bracts lanceolate, scarious, pale, caducous; calyx eylindrical-campanulate, enlarged on the upper side, and obliquely obconic at the base, puberulous, 5-toothed, the teeth imbricated in the bud, nearly equal, short and obtuse, the 2 upper slightly united; disk cupuliform, adnate to the interior of the calyx-tube; corolla papiliona- ceous; petals white, unguiculate; standard nearly orbicular, entire or slightly emar- ginate, reflexed above the middle, barely longer than the straight oblong wings, slightly biauriculate at the base of the blade, marked on the inner surface with a pale yellow blotch; keel-petals free, oblong, nearly straight, obtuse, slightly sub- cordate or biauriculate at the base; stamens 10, free; filaments filiform, slightly incurved near the summit, glabrous; anthers versatile; ovary linear, stipitate, bright red, villose, with long pale hairs, contracted into a long slender glabrous slightly incurved subulate style; stigma terminal, minute; ovules numerous, suspended from the inner angle of the ovary, superposed. Legume glabrous, short-stalked, linear- 568 TKEES OF NORTH AMERICA compressed, the upper margin slightly thickened, tipped with the remnants of the persistent style, 4-G-seeded, ultimately dehiscent, the valves thin and membranaceous. Seeds oblong-compressed, attached by slender fuuicles; without albumen; seed-coat thin, membranaceous, dark brown; embryo filling the cavity of the seed; cotyledons fleshy, oblong, Hat; radicle short, inflexed. The genus consists of a single species of the southern United States. Cladrastis, from «Aa8os and dpav narrowed below, narrowed and marked at the apex by the elevated pale hilum and on the inner surface by the broad conspicuous raphe. A tree, 20°-30° high, with a short trunk 5'-6' in diameter, small erect branches, and slender branchlets, light green tinged with red when they first appear, becoming in their first winter ashy gray and marked by scattered pale lenticels, and at the end of their second year by the small elevated oval leaf-scars displaying the ends of 3 fibro-vascular bundles. Winter-buds minute, acute or obtuse, chestnut-brown, and covered with pale hairs. Bark of the trunk about -^■^' thick, light brown tinged with red, the generally smooth surface separating into small irregular scales. Wood heavy, hard, brittle, close-grained, rich dark brown, with thick yellow sapwood. 598 TREES OF NORTH AMERICA Distribution. Shores of Bay Biscay ne and on many of the southern keys, Florida; common on the Bahama Islands and on several of the Antilles. 2. HIPPOMANE, L. A glabrous tree, with thick acrid juice, scaly bark, and stout pithy branchlets marked by circular raised lenticels, and oblong or semiorbicular horizontal elevated leaf-scars displaying a row of obscure fibro- vascular bundle-scars, and nearly encir- cled at the nodes by ring-like scars left by the falling of the stipules. Winter-buds ovate, acute, covered by many loosely imbricated long-pointed chestnut-brown scales. Leaves alternate, involute in the bud, tardily deciduous, broadly ovate, abruptly rounded at the apex into broad points terminating in slender mucros, rounded or subcordate at the base, remotely crenulate-serrate, with minute gland-tipped teetli, penniveined, long-petiolate, at first pilose, with occasional long pale hairs, soon be- coming glabrous, and at maturity thick and coriaceous, dark yellow-green and lus- trous above, paler and dull below, with stout light yellow midribs raised and rounded on the upper side, and slender primary veins remote, arcuate, and united at some distance from the margins and connected by conspicuous coarsely reticulate veinlets more prominent on the upper than on the lower side; their petioles elongated, slen- der, rigid, light yellow, rounded below, obscurely grooved above, marked at the apex by large orbicular dark red glands; stipules ovate-lanceolate, abruptly narrowed from broad bases, slightly laciniate near the apex, membranaceous, light chestnut- brown, caducous. Inflorescence terminal, spicate, appearing in early spring usually before the unfolding leaves, the stout fleshy rachis often bearing at the base acute sterile deciduous bracts, or 1 or 2 small leaves, the minute pistillate flowers solitary in their axils or in the axils of ovate acute lanceolate bracts furnished with 2 lateral glandular bractlets; staminate flowers minute, articulate on slender pedicels, clus- tered in 8-lo-flowered fascicles in the axils of simple bracts higher on the rachis and extending to its apex; calyx usually 3-lobed, the lobes imbricated in the bud, that of the staminate flower yellow-green, membranaceous, divided below into 3 or some- times into 2 acute lobes; calyx of the pistillate flower ovate, yellow-green, divided nearly to the base into 3 ovate acute concave divisions rounded on the back; stamens 2 or often 3, exserted, more or less connate by their filaments into a stout column, free and spreading at the apex; anthers ovoid, light yellow, surmounted by the short prolonged connective, attached on the back below the middle, erect, extrorse; ovary 6-8-celled, narrowed at the base, gradually contracted above into a short simple cylindrical style separating into 6-8 long radiating flattened abruptly reflexed lobes stigmatic on the inner face; ovule solitary in each cell. Fruit drupaceous, pome- shaped, obscurely 6-8-lobed, raised on a thickened woody stem; skin thin, light yellow-green or yellow and red ; flesh thick, lactescent, adherent to the thick-walled rugose deeply winged 6-8-celled, 6-8 seeded subglobose stone flattened at the ends, the cells divided throughout by thin dark radial plates, ultimately sepa- rable, penetrated near the summit by oblique canals filled by the funicles of the seeds. Seeds oblong-ovate, marked by a minute slightly elevated hilum and on the ventral face by an obscure raphe; seed-coat membranaceous, separable into 2 layers, the outer dark, the inner thinner, light brown; embryo surrounded by thick fleshy albumen. The genus is represented by a single species abounding in exceedingly poisonous caustic sap which produces cutaneous eruptions and when taken internally destroys the mucous membrane; formerly employed by the Caribs to poison their arrows. EUPHORBIACE^ 599 The generic name is from 'iiriros and jxavia, and was first used by the Greeks to distinguish some plant with properties excitant to horses. 1. Hippomane Mancinella, L. Manchineel. Leaves 3'-4' long, l^'-2' wide, unfolding in early spring and persistent in Flor- ida until the spring of the following year ; their petioles 2^'-4' long. Flowers opening in March before the leaves of the year; rachis of the inflorescence 4'-6' long, dark purple, more or less covered with a glaucous bloom. Fruit ripening in the autumn or early winter and often persistent on the branches until after the ap- pearance of the flowers of the following year, I'-l^' in diameter, light yellow-green, with a bright red cheek; seeds about \' long. A tree, in Florida rarely more than 12°-15° high, with a short trunk b'-& in diam- eter, long spreading pendulous branches forming a handsome round-topped head ; or in the West Indies often 50°-60° tall, with a trunk occasionally 3° in diameter. Bark of the trunk \'-\' thick, dark brown and broken on the surface into small thick appressed irregularly shaped scales, or in the West Indies sometimes smooth, light gray or nearly white. Wood light and soft, close-grained, dark brown, with thick light brown or yellow sapwood. Distribution. Sandy beaches and dry knolls in the immediate neighborhood of the ocean ; keys off the southern coast of Florida ; on the Bahama Islands, through the Antilles to the northern countries of South America, and to southern Mexico and the eastern and western coasts of Central America. 3. GYMNANTHES, Sw. Glabrous trees or shrubs, with milky juice and slender terete branches. Leaves conduplicate in the bud, petiolate, entire or crenulate-serrate, coriaceous, penni- veined, persistent ; stipules membranaceous, minute, caducous. Flowers monoecious or rarely dioecious; inflorescence buds covered with closely imbricated chestnut- brown scales, lengthening in anthesis, bearing in the upper axils numerous 3- branched clusters of staminate flowers, their branches furnished with minute ovate bracts, and in the lower axils 2 or 3 long-stalked pistillate flowers; calyx of the staminate flower minute or 0; stamens 2 or rarely 3; filaments filiform, inserted on 600 TREES OF NORTH AMERICA the slightly enharged torus, free or slightly connate at the base; anthers attached on the back below the middle, erect, ovoid, 2-celled, the cells parallel; calyx of the pistillate flower reduced to 3 bract-like scales; ovary ovate, 3-celled, narrowed into 3 recurved styles free or slightly united at the base, stigmatic on their inner face; ovule solitary in each cell. Fruit a 3-lobed capsule separating from the persistent axis into 3 2-valved 1-seeded carpels dehiscent on the dorsal and partly dehiscent on the ventral suture. Seed ovoid or subglobose, strophiolate ; seed-coat crusta- ceous; embryo erect in fleshy albumen. Gymnanthes with about ten species is confined to the tropics of the New World and is distributed from southern Florida, where one species occurs, through the West Indies to Mexico and Brazil. The generic name, from yvfxvds and &v6oSj relates to the structure of the naked flowers. 1. Gymnanthes lucida, Sw. Crab Wood. Leaves oblong-ovate or ovate-lanceolate, obscurely and remotely crenulate-ser- rate or often entire, when they unfold thin and membranaceous, deeply tinged w^ith red, and glandular on the teeth, with minute caducous dark glands, and at maturity thick and coriaceous, dark green and lustrous on the upper and pale and dull on the lower surface, 2'-3' long, f'-l^' wide, with broad pale midribs raised and rounded on the upper side, obscure primary veins arcuate and united near the margins and connected by prominent coarsely reticulate veinlets, appearing in Florida in early fk U-91 spring and remaining on the branches through their second summer; their petioles broad, slightly grooved, about \' long; stipules ovate, acute, light brown, clothed on the margins with long pale hairs, about ^-^' long. Flo"wers : inflorescence buds appearing in Florida late in the autumn in the axils of leaves of the year and begin- ning to lengthen in spring, the inflorescence becoming l^'-2' long, with a slender glabrous angled rachis, the scales broadly ovate, pointed, concave, rounded and thickened at the apex, puberulous and ciliate on the margins, those inclosing the male flowers connate with the flowers and persistent under the calyx, those subtend- ing the female flowers at the base of the inflorescence and not raised on their pedun- cles. Fruit produced in Florida sparingly, ripening in the autumn, slightly obovate, dark reddish brown or nearly black, ^' in diameter, covered with thin dry flesh and pendent on a slender stem 1' or more in length; seeds ovoid. ANACARDIACE^ 601 A tree, occasionally 20°-30° high, with a trunk 6'-8' in diameter and often irregu- larly ridged, the rounded ridges spreading near the surface of the ground into broad buttresses, slender erect branches forming a narrow open oblong head, and slender upright branchlets light green more or less deeply shaded with red when they first appear, becoming in their first winter light gray-brown faintly tinged with red and roughened by numerous oblong pale lenticels, ultimately ashy gray and marked at the end of their second year by the semiorbicular elevated leaf-scars displaying the ends of 4 fibro-vascular bundle-scars superposed in pairs. "Winter-buds ovate, obtuse, covered with chestnut-brown scales, about ^^g' long. Bark of the trunk dark red-brown, about ^^' thick, separating into large thin scales, in falling display- ing the light brown inner bark. Wood very heavy, hard, close-grained, rich dark brown streaked with yellow, with thick bright yellow sap wood; in Florida occasion- ally manufactured into canes, and used as fuel. Distribution. Common in low woods from the shores of Bay Biscayne to the Marquesas Keys, Florida; on the Bahama Islands, and on many of the Antilles. XXIX. ANACARDIACEiB. Trees and shrubs, with terete pithy branchlets, resinous juice, and alter- nate simple or pinnate leaves without stipules, and scaly or naked buds. Flowers regular, minute, dioecious, polygamo-dioecious, or polygamo-monoe- cious ; calyx-lobes and petals 5, imbricated in the bud ; stamens as many as the petals and alternate and inserted with them on the margin or under an hypogynous annular fleshy slightly 5-lobed disk ; filaments filiform ; anthers oblong, introrse, 2-celled, the cells opening longitudinally ; ovary 1-celled ; ovule solitary, suspended from the apex of a slender funicle rising from the base of the cell, anatropous ; micropyle superior ; styles 3, united or spread- ing; stigmas terminal. Fruit drupaceous. Seed without albumen; seed-coat thin and membranaceous ; embryo filling the cavity of the seed ; cotyledons flat, accumbent on the short radicle. The Sumach family of nearly sixty genera is mostly confined to the warmer parts of the earth's surface and contains the Mango, Pistacia, and other im- portant trees. In the flora of the United States three genera have arborescent representatives. CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES. Flowers usually dioecious by abortion ; styles lateral, spreading- ; pedicels of the abortive flowers becoming long and plumose at maturity ; fruit compressed, very oblique ; leaves simple, deciduous. 1. Cotinus. Flowers mostly dioecious ; styles terminal, short, united ; stigma 3-lobed ; fruit ovate, gla- brous ; leaves unequally pinnate, persistent. 2. Metopium. Flowers polygamo-dioecious or polygamo-monoecious ; styles terminal, spreading ; fruit usually globose, naked or clothed with acrid hairs; leaves unequally pinnate, trifoliolate or rarely simple, deciduous or rarely persistent. 3. Rhus. 1. COTINUS, L. Small trees or shrubs, with scaly bark, small acute winter-buds, with numerous imbricated s'cales, fleshy roots, and strong-smelling juice. Leaves simple, petiolate, oval, obovate-oblong or nearly orbicular, glabrous or more or less pilose-pubescent, deciduous. Flowers regular, dioecious by abortion or rarely polygamo-dioecious. 602 TREES OF NOKTH AMERICA greenish yellow, on slender pedicels accrescent after the flowering period, mostly abortive and then becoming conspicuously tonientose-villose at nifiturity, in ample loose terminal or lateral pyramidal or thyrsoidal panicles, the branches from the axils of linear acute or spatulate deciduous bracts; calyx-lobes ovate-lanceolate, obtuse, persistent; disk coherent with the base of the calyx and surrounding the base of the ovary; petals oblong, acute, twice as long as the calyx, inserted under the free margin of the disk opposite its lobes, deciduous; stamens shorter than the petals, usually rudimentary or wanting in the pistillate flower; ovary sessile, obo- vate, compressed, rudimentary in the staminate flower; styles 3, short and spreading from the lateral apex of the ovary; stigmas large, obtuse. Fruit oblong-oblique, compressed, glabrous, conspicuously reticulate-veined, light red-brown, bearing on the side near the middle the remnants of the persistent styles, the outer coat thin and dry; stone thick and bony. Cotinus is widely distributed through southern Europe and the Himalayas to northern China with a single species, and is represented in the southern United States by another species. The Old World Cotinus Cotinus, Sarg., the Smoke-tree of gardens, is often culti- vated in the United States. The generic name is from k6tij/os, the classical name of a tree with red wood. 1. Cotinus Americanus, Nutt. Chittam Wood. Leaves oval or t)bovate, rounded or sometimes slightly emarginate at the apex, gradually contracted at the base, entire, with slightly wavy revolute margins, when (,.^92 they mifold light purple and covered below with fine silky white hairs, and at matur- ity dark green on the upper surface, pale on the lower surface, and puberulous along the under side of the broad midribs and primary veins, 4'-6' long, 2'-3' wide, turning in the autumn brilliant shades of orange and scarlet; their petioles stout, ^-f long. FloTvers appearing late in April or early in May on pedicels ^'-f' long, and usually collected 3 or 4 together in loose umbels near the ends of the principal branches of puberulous terminal slender long-branched few-flowered panicles 5'-6' long and 2^'-3' broad, the staminate and pistillate on different individuals. Fruit produced very sparingly, about ^' long, on stems 2'-3' in length; sterile pedicels becoming ANACARDIACE^ 603 l^'-2' long at maturity and covered with short not very abundant rather inconspic- uous pale purple or brown hairs; seed kidney-shaped, pale brown, about -^q' long. A tree, 2o°-3o° high, with a straight trunk occasionally 12'-14' in diameter, usually dividing 12°-l'i° from the ground into several erect stems separating into wide- spreading often slightly pendulous branches, and slender branchlets purple at first, soon becoming green, brigfit red-brown and covered with small white lenticels and marked by large prominent leaf -scars during their first winter, and dark orange- colored in their second year. Winter-buds l' long and covered with thin dark red- brown scales. Bark of the trunk 1' thick, light gray, furrowed and broken on the surface into thin oblong scales. Wood light, soft, rather coarse-grained, bright clear rich orange color, with thin nearly white sapwood; largely used locally for fence- posts and very durable in contact with the soil; yielding a clear orange-colored dye. Distribution. Southern slopes of the Cumberland Mountains near Huntsville, Alabama, on the Cheat Mountains in eastern Tennessee, banks of Grand River, Indian Territory, valley of the Medina River, western Texas, and southwestern Mis- souri; nowhere common and only in small isolated groves or thickets scattered along the sides of rocky ravines or dry slopes. Occasionally cultivated in the eastern United States and hardy as far north as eastern Massachusetts, and rarely in Europe. 2. METOPIUM, P. Br. Trees or shrubs, with naked buds, fleshy roots, and milky exceedingly caustic juice. Leaves unequally pinnate, persistent; leaflets coriaceous, lustrous, long-petiolulate. Flowers dioecious, yellow-green, on short stout pedicels, in narrow erect axillary clusters at the ends of the branches, with minute acute deciduous bracts and bract- lets, the males and females on different trees; calyx-lobes semiorbicular, about half as long as the ovate obtuse petals; stamens 5, inserted under the margin of the disk; filaments shorter than the anthers, minute and rudimentary in the pistillate flower; ovary ovate, sessile, minute in the staminate flower; style terminal, short, undivided; stigma 3-lobed. Fruit ovate, compressed, smooth and glabrous, crowned with the remnants of the style; outer coat thick and resinous; stone crustaceous. Seed nearly quadrangular, compressed; seed-coat smooth, dark brown and opaque, the broad funicle covering its margin. Metopium with two species is confined to southern Florida and the West Indies. The generic name, from ^nos, was the classical name of an African tree now unknown. 1. Metopium Metopium, Small. Poison Wood. Hog Gum. (Rhus Metopium, Silva N. Am. iii. 13.) Leaves clustered near the ends of the branches, 9'-10' long, with stout petioles swollen and enlarged at the base, and 5-7 leaflets, or often 3-foliolate, unfolding in March and persistent until the following spring; leaflets ovate, rounded or usually contracted toward the acute or sometimes slightly emarginate apex, rounded or some- times cordate or wedge-shaped at the base, 3'-4' long, 2'-3' broad, with thickened slightly revolute margins, prominent midribs, primary veins spreading at right angles, numerous reticulate veinlets, and stout petiolules V-1' long? that of the ter- minal leaflet often twice as long as the others. Flowers about ^' in diameter, in clusters as long or rather longer than the leaves; petals yellow-green, marked on the 604 TREES OF NORTH AMERICA inner surface by dark longitudinal lines; stamens rather shorter than the petals. Fruit ripening in November and December, pendent in long graceful clusters, orange-colored, rather lustrous, |' long; seed about \' long. A tree, with exceedingly acrid poisonous juice, frequently 35°-40° high, with a short trunk sometimes 2° in diameter, stout spreading often pendulous branches forming a low broad head, and reddish brown branchlets marked by prominent leaf- scars and numerous orange-colored lenticels. Winter-buds large, rufous-pubescent. Bark of the trunk about ^' thick, light reddish brown tinged with orange, often marked by dark spots caused by the exuding of the resinous gum, and separating into large thin plate-like scales displaying the bright orange color of the inner bark. Wood heavy, hard, not strong, rich dark brown streaked with red, with thick light brown or yellow sapwood of 25-30 layers of annual growth. The resinous gum obtained from incisions made in the bark is emetic, purgative, and diuretic. Distribution. Shores of Bay Biscay ne and the keys of southern Florida; very abundant; also in the Bahamas, Cuba, Jamaica, and Honduras. 3. RHUS. K Trees or shrubs, with pithy branchlets, fleshy roots, and milky sometimes caustic OP watery juice. Leaves unequally pinnate, or rarely simple. Flowers mostly dioe- cious, rarely polygamous, white or greenish white, in more or less compound axil- lary or terminal panicles, the staminate and pistillate usually produced on separate plants; calyx-lobes united at the base only, generally persistent; disk surrounding the base of the free ovary, coherent with the base of the calyx; petals longer thau the calyx-lobes, inserted under the margin of the disk, opposite its lobes, deciduous; stamens 5, inserted on the margin of the disk alternate with the petals; filaments longer than the anthers; ovary ovoid or subglobose, sessile; styles 3, terminal, free or slightly connate at the base, rising from the centre of the ovary. Fruit usually glo- bose, smooth or covered with hairs; outer coat thin and dry, more or less resinous; stone crustaceous or bony. Seed ovoid or reniform, commonly transverse; cotyledons foliaceous, generally transverse; radicle long, uncinate, laterally accumbent. Rhus is widely distributed, with more than one hundred species, in the extra- tropical regions of the northern and southern hemispheres. In North America the genus is widely and generally distributed from Canada to southern Mexico and from ANACARDIACE^ 605 the shores of the Atlantic to those of the Pacific Ocean, with sixteen or seventeen species within the territory of the United States. Of these, four attain the habit of small trees. The acrid poisonous juice of Rhus vernicifera, DC, of China, furnishes the black varnish used in China and Japan in the manufacture of lacquer, and other species are valued for the tannin contained in their leaves or for the wax obtained from the fruit. The name of the genus is from 'PoCs, the classical name of the European Sumach. CONSPECTUS OF NORTH AMERICAN ARBORESCENT SPECIES. Flowers in terminal thyrsoidal panicles ; fruit globular, clothed with acrid hairs ; leaves unequally pinnate, deciduous ; branchlets without terminal buds. Sumachs. Branches and leaf -stalks densely velvety hairy; leaflets 11-31, pale on the lower sur- face ; fruit covered with long- hairs ; buds inclosed in the enlarged bases of the petioles; juice milky. 1. R. hirta (A, C). Branches and leaf -stalks pubescent ; rachis winged ; leaflets 9-21, green on the lower surface ; fruit pilose ; buds not inclosed by the petioles ; juice watery. 2. R. copallina (A, C). Flowers in axillary slender panicles ; fruit glabrous, white ; leaves unequally pinnate, decidu- ous; leaflets 7-13; branchlets with terminal buds. 3. R. Vernix*(A, C). Flowers in short compact terminal panicled racemes ; fruit pubescent ; leaves ovate, entire or serrate, simple or rarely trifoliolate, persistent. 4. R. integrifolia (G). 1. Rhus hirta, Sud-w. Staghorn Sumach. Leaves 16'-24' long, with stout petioles usually red on the upper side and covered with soft pale hairs, enlarged at the base and surrounding and inclosing the buds developed in their axils, and 11-31 oblong often falcate rather remotely and sharply serrate or rarely laciniate long-pointed nearly sessile or short-stalked leaflets rounded or slightly heart-shaped at the base, at first covered above like the petioles and young shoots with red caducous hairs, bright yellow-green until half grown, and at maturity dark green and rather opaque on the upper surface, pale or often nearly white on the lower surface, glabrous with the exception of the short fine hairs on the under side of the stout midribs, and primary veins forked near the margins, opposite, or the lower ones slightly alternate, those of the 3 or 4 middle pairs considerably longer than 606 TREES OF NORTH AMERICA those at the ends of the leaf and 2'-5' long and I'-l^' wide, turning in the autumn before falling bright scarlet with shades of crimson, purple, and orange. Flo"wers opening gradually and in succession in early summer, the pistillate a week or ten days later than the staminate, on slender pedicels from the axils of small acute pubescent bracts, in dense panicles, with pubescent stems and branchlets and acumi- nate bracts ^' to nearly 2' long and deciduous with the opening of the flowers; panicle of the staminate flowers 8'-12' long and 5'-6' broad, with wide-spreading branches and nearly one third larger than the more compact panicle of the pistillate plant; calyx- lobes acute, covered on the outer surface with long slender hairs, much shorter than the petals in the staminate flower, and almost as long in the pistillate flower; petals of the staminate flower yellow-green sometimes tinged with red, strap-shaped, rounded at the apex, becoming reflexed above the middle at matiu-ity; petals of the pistillate flower green, narrow and acuminate, with a thickened and slightly hooded apex, remaining erect; disk bright red and conspicuous; stamens slightly exserted, with slender filaments and large bright orange-colored anthers; ovary ovoid and pubescent, the 3 short styles slightly connate at the base, with large capitate stig- mas, in the staminate flower glabrous, much smaller, unusually rudimentary. Fruit fully grown and colored in August and ripening late in the autumn in dense pani- cles 6'-8' long and 2'-3' wide, depressed-globular, with a thin outer covering clothed vritli long acrid crimson hairs and a small pale brown bony stone; seed slightly reniform, orange-brown. A tree, occasionally 35°-40° high, with copious white viscid juice turning black on exposure, a slender often slightly inclining trunk occasionally 12'-14' in diameter, stout upright often contorted branches forming a low flat open head, and thick branch- lets covered with long soft brown hairs gathered also in tufts in the axils of the leaves, becoming glabrous after their third or fourth year, and in their second season marked by large narrow leaf-scars and by small orange-colored lenticels enlarging vertically and persistent for several years; more frequently a tall shrub, spreading by underground shoots into broad thickets. Winter-buds conical, thickly coated with long silky pale brown hairs, about ^' long. Bark of the trunk thin, dark brown, generally smooth, and occasionally separating into small square scales. "Wood light, brittle, soft, coarse-grained, orange-colored, streaked with green, with thick nearly white sap wood. From the young shoots pipes are made for drawing the sap of the Sugar Maple. The bark, especially that of the roots, and the leaves are rich in tannin. Distribution. Usually on uplands in good soil, or less commonly on sterile grav- elly banks and on the borders of streams and swamps; New Brunswick, through the valley of the St. Lawrence River to southern Ontario and Minnesota, and southward through the northern states and along the Alleghany Mountains to northern Georgia and to central Alabama and Mississippi; more abundant on the Atlantic seaboard than in the region west of the Appalachian Mountains. Occasionally cultivated as an ornamental plant in the United States, and very commonly in central and northern Europe. 2. Rhus copallina, L. Sumach. Leaves 6'-8' long, with slender pubescent petioles and rachises more or less broadly wing-margined between the leaflets, the wings increasing in width toward the apex of the leaf, and 9-21 oblong or ovate-lanceolate leaflets entire or remotely serrate above the middle, sharp-pointed or rarely emarginate at the apex, acute or ANACARDIACE^ 607 obtuse and often unequal at the base, the lower pairs short-petiolulate and smaller than those above the middle of the leaf, the others sessile with the exception of the terminal leaflet sometimes contracted into a long winged stalk, when they unfold dark green and slightly puberulous above, especially along the midribs, and covered below with fine silvery white pubescence, at maturity subcoriaceous, dark green and lustrous above, pale and pubescent below, ll'-2^' long and about |' wide, with slightly thickened revolute margins, prominent midribs and primary veins, turning in the autumn before falling dark rich maroon color on the upper surface. Flowers appearing from June at the south to August at the north, those of the staminate plant opening in succession during nearly a month and continuing to unfold long after the petals of the pistillate plant have fallen, on stout pubescent pedicels, ^'-\' long, in short compact pubescent panicles, the lower branches from the axils of the upper leaves, 4'-6' long, 3'-4' broad, and usually smaller on the female than on the male plant, their bracts and bractlets ovate or oblong, densely ciuereo-pilose, deciduous before the ex- pansion of the flowers; calyx puberulous on the outer surface, with ovate acute lobes one third as long as the ovate greenish yellow petals rounded at the apex, becom- ing reflexed above the middle; disk red and conspicuous; stamens somewhat longer than the petals, with slender filaments and large orange-colored anthers, in the pistillate flower much shorter than the petals, with minute rudimentary anthers; ovary ovate, pubescent, glabrous, much smaller in the staminate flower. Fruit ripening in five or six weeks and borne in stout compact often nodding pubescent clusters sometimes persistent on the branches until the beginning of the following summer, 1' across, slightly obovate, more or less flattened, with a thin bright red coat covered with short fine glandular hairs, and a smooth bony orange-brown stone; seed reniforra, smooth, orange-colored, with a broad funicle. A tree, 25°-30° high, with colorless watery juice, a short stout trunk 8'-10' in diameter, erect spreading branches, and branchlets at first dark green tinged with red and more or less densely clothed with short fine or sometimes ferrugineous pu- bescence, appearing slightly zigzag at the end of the first season from the swellings formed by the prominent leaf-scars, and then pale reddish brown, slightly puberulous and marked by conspicuous dark-colored lenticels; or at the north a low shrub rarely more than 4°-5° tall. Winter-buds axillary, minute, nearly globose, and covered with dark rusty brown tomentum. Bark of the trimk ^'-^' thick, light brown tinged 608 TREES OF NORTH AMERICA with red, and marked by large elevated dark red-brown circular excrescences, and separating into large thin papery scales. Wood light, soft, coarse-grained, light brown streaked with green and often tinged with red, with thin lighter colored sapwood of 4 'or o layers of annual growth. The leaves are rich in tannin and are gathered in large quantities and ground for curing leather and for dyeing. Distribution. Dry hillsides and ridges; widely and generally distributed from northern New England to Manitee and the shores of Caximbas Bay, Florida, and to eastern Nebraska and Kansas and ^,he valley of the San Antonio River, Texas; also in Cuba; in the United States arborescent only in southern Arkansas and eastern Texas; east of the Mississippi River rarely more than a few feet high and spreading by underground stems on gravelly sterile soil into broad thickets; varying consider- ably in the size and form of the leaflets. The most distinct and probably the most constant of these varieties is var. lanceolata, Gray, a small tree growing on the prairies of eastern Texas to the valley of the Rio Grande, often forming thickets on river bluffs or on the banks of small streams, and distinguished by its narrow acute often falcate narrow leaflets and by its larger inflorescence and fruit. It is a tree some- times 2o°-30° high, with a trunk occasionally 8' in diameter, covered by dark gray bark marked by lenticular excrescences. The flowers appear in July and August and the dull red or sometimes green fruit ripens in early autumn and falls before the beginning of winter. Occasionally cultivated as an ornamental plant in the eastern United States, and in western and northern Europe. 3. Rhus Vernix, L. Poison Dogwood. Poison Sumach. Leaves 7'-14' long, with slender usually light red or red and green petioles, and 7-13 obovate-oblong entire leaflets slightly unequal at the base and narrowed at the acute or rounded apex, bright orange color and coated, especially on the margins fi^ u-gb and under surface, with fine pubescence when they unfold, soon becoming glabrous, and at maturity 3'-4' long, l^'-2' wide, dark green and lustrous above, pale below, with prominent midribs scarlet above, primary veins forked near the margins, con- spicuous reticulate veinlets, and revolute margins, turning early in the autumn before falling to brilliant shades of scarlet or orange and scarlet. Flowers about ^' long, ANACARDIACE^ 609 appearing in early summer on slender pubescent pedicels bibracteolate near the middle, in long narrow axillary pubescent panicles crowded near the ends of the branches, with acute pubescent early deciduous bracts and bractlets; calyx-lobes acute, one third the length of the yellow-green acute petals erect and slightly re- flexed toward the apex; stamens nearly twice as long as the petals, with slender filaments and large orange-colored anthers, in the fertile flower not more than half the length of the petals, with small rudimentary anthers, ovary ovoid-globose, with short thick spreading styles terminating in large capitate stigmas. Fruit ripening in September and often persistent on the branches until the following spring, in long graceful racemes, ovate, acute, often flattened and slightly gibbous, tipped with the dark remnants of the styles, glabrous, striate, ivory-white or white tinged with yel- low, very lustrous, and about ^' long; stone conspicuously grooved, thin, membra- naceous; seed pale yellow. A tree, with acrid poisonous juice turning black on exposure, occasionally 20° high, with a trunk o'-6' in diameter, slender rather pendulous branches forming a narrow round-topped head, and slender glabrous branchlets reddish brown and covered with minute orange-colored lenticels when they first appear, orange-brown at the end of their first season, becoming light gray and marked by large elevated conspicuous leaf-scars; more often a shrub, with several slender clustered stems. Winter-buds acute and covered with dark purple scales puberulous on the back and ciliate on the margins, with short pale hairs, the terminal -g'-f' long and two or three times larger than the axillary buds. Bark of the trunk thin, light gray, smooth or sometimes slightly striate. Wood light, soft, coarse-grained, light yellow streaked with brown, with lighter colored sapwood. Distribution. Wet swamps often inundated during a portion of the year; northern New England to northern Georgia and Alabama, westward to northern Minnesota, Arkansas, and western Louisiana; common and one of the most dangerous plants of the Northern American flora. An infusion of the young branches and leaves is employed in homceopathic practice, and the juice can be used as a black lustrous durable varnish. 4. Rhus integrifolia, B. & H. Mahogany. Leaves simple or very rarely 3-foliolate, persistent, acute or rounded at the apex, with thickened revolute or spinosely toothed margins, puberulous when young, and at maturity l^'-3' long, I'-l^' wide, thick and coriaceous, dark yellow-green above, paler below, and glabrous with the exception of the stout petioles, broad thick mid- ribs, and prominent reticulate veins. Flo'wers appearing from February to April, Y in diameter when expanded, on short stout pedicels, with 2-4 broadly ovate pointed persistent scarious ciliate pubescent bracts, in short dense racemes forming hoary »= pubescent terminal panicles l'-3' in length; sepals rose-colored, orbicular, concavCi ciliate on the marg^ins, rather less than half the leng^th of the rounded ciliate reflexed rose-colored petals; stamens as long as the petals, with slender filaments and pale anthers, minute and rudimentary in the pistillate flower; ovary broadly ovate, pubes^ cent, with 3 short thick connate styles and very large 3-lobed capitate stigmas. Fruit ^' long, ovate, flattened, more or less gibbous, thick, dark red, densely pubescent; stone kidney-shaped, smooth, light chestnut-brown, with thick walls; seed flattened, pale, with a broad dark-coloi'ed funicle covering its side. A tree, rarely 30° high, with a short stout trunk 2°-3° in diameter, numerous spreading branches, and stout branchlets covered when they first appear with thick 610 TREES OF NORTH AMERICA pale pubescence disappearing in their second and tliird years, and bright reddish brown and marked by numerous small elevated lenticels; or usually a small often almost prostrate shrub. Winter-buds small, obtuse, covered with a thick coat of f)^if97 pale tomentum. Bark of the trunk \'-^' thick, bright reddish brown, exfoliating in large plate-like scales. "Wood hard, heavy, bright clear red, with thin pale sap- wood of 8-10 layers of annual growth; valued and largely used as fuel. The fruit is occasionally employed in the preparation of a cooling beverage. Distribution. Sandy sterile soil along sea beaches and bluffs in the immediate neighborhood of the ocean; Santa Barbara, California, to the shores of Magdalena Bay, Lower California, and on the Santa Barbara and Cedros islands; on the main- land usually shrubby, forming close impenetrable thickets; in more sheltered situa- tions and on the islands becoming arborescent; probably of its largest size on the shores of Todos Santos Bay, Lower California. XXX. CYRILLACE-ai. Trees or shrubs, with small scaly buds and watery juice. Leaves alternate, entire, subcoriaceous, without stipules, persistent or tardily deciduous. Flowers small, regular, perfect, on slender bibracteolate pedicels, in terminal or axil- lary racemes; calyx 5-8-lobed, persistent, the lobes imbricated in the bud ; petals 5-8, hypogynous ; stamens 5-10, hypogynous, those opposite the petals shorter than the others ; anthers oblong, introrse, 2-celled, the cells laterally dehiscent, opening longitudinally ; ovary 2-4-celled ; ovules susjjended, ana- tropous ; raphe dorsal ; micropyle superior. Fruit an indehiscent capsule. Seed suspended ; seed-coat membranaceous ; albumen fleshy, radicle superior. A family confined to the warmer parts of America, with three genera, of which two are represented by small trees in the southern states. CONSPECTUS OF THE GENERA OF THE UNITED STATES. Flowers in axillary racemes; calyx 5-lobed ; petals 5, contorted in the bud; fruit without wings, 2-celled, with 2 seeds in each cell. 1. Cyrilla. Flowers in terminal racemes ; calyx 5-8-lobed ; petals 5-8, imbricated in the bud ; fruit with 2-4 wings, 3 or rarely 4-celled, with 1 seed in each cell. 2. Cliftonia. CYRILLACE^ 611 1. CYRILLA, L. A glabrous tree or shrub, with spongy bark, slender terete branchlets conspicu- ously marked by large leaf-scars, and narrow acute winter-buds covered with chest- nut-brown scales. Leaves usually clustered near the ends of the branches, oblong or obovate-oblong, pointed, rounded, or slightly emargiuate at the apex, conspicuously reticulate-veined, short-petiolate, without stipules. Flowers on pedicels from the axils of narrow alternate persistent bracts, in slender racemes from the axils of fallen leaves or of small deciduous bracts near the extremities of the branches of the pre- vious year; calyx minute, divided nearly to the base into 5 ovate-lanceolate acute coriaceous lobes; petals 5, contorted in the bud, white or rose color, inserted on an annular disk, three or four times longer than the calyx-lobes, oblong-lanceolate, acute, concave, subcoriaceous, furnished below the middle on the inner surface with a broad glandular nectary; stamens 5, opposite the divisions of the calyx, inserted with and shorter than the petals; filaments subulate, fleshy; anther-cells united above the point of the attachment of the filament, free below; ovary free, sessile, ovoid, pointed, 2-celled; styles short, thick; stigma 2-lobed, with spreading lobes; ovules 3 in each cell, suspended from an elongated placental process developed from the apex of the cell. Fruit 2-celled, broadly ovoid, crowned with the rem- nants of the persistent style; pericarp spongy. Seeds 2 in each cell, elongated, acu- minate; embryo minute, cylindrical, 2-lobed. Cyrilla is represented by a single species of the coast region of the south Atlan- tic and Gulf states and of the Antilles and eastern tropical South America. The name commemorates the scientific labors of Domenico Cirillo (1734—1799), the distinguished Italian naturalist and patriot. 1. Cyrilla racemiflora, L. Ironwood. Leather "Wood. Leaves 2'-3' long, ^'-1' broad, with stout petioles ^-1' long, turning late in the autumn and early winter to brilliant shades of orange and scarlet and then decidu- ous, or southward persistent with little change of color until the beginning of the f^.H-9S following summer. Flowers appearing late in June or early in July, in racemes usually 6-10 together and 4'-6' long, at first erect, becoming pendulous before the 612 TREES OF NORTH AMERICA fruit ripens. Fruit ripening in August and September, rarely more than ■^' long; seeds light brown. A slender tree, oceasionall}' 30°-35° high, with a stout often eccentric trunk 10'-14' in diameter, dividing several feet above the ground into numerous wide-spreading branches, and slender branchlets bright brown during their first season and ulti- mately ashy gray; or often a broad bush sending up many slender stems 15°-20° high. Winter-buds about ^' long. Bark of the trunk rarely more than ^' thick except near the base of old trees, and covered by large thin bright red-brown scales. Wood heavy, hard, close-grained, not strong, brown tinged with red, with rather lighter colored sap wood. The spongy bark at tlie base of the trunk is pliable, absorbent, and astringent, and is recommended as a styptic. Distribution, Rich shaded river-bottoms, the borders of sandy swamps and shallow ponds of the coast Pine belt, or on high sandy exposed ridges rising above streams near the Gulf coast; North Carolina southward near the coast to about latitude 30 in the Florida peninsula, on the keys of southern Florida, and westward along the Gulf coast to the valley of the Neches River, Texas; and in Cuba, Jamaica, Demarara, and Brazil. 2. CLIFTONIA, Gaertn. f. A glabrous tree or shrub, with thick dark brown scaly bark, slender terete branch- lets marked by conspicuous leaf-scars, and small acuminate buds covered by chest- nut-brown scales. Leaves oblong-lanceolate, rounded or slightly emarginate at the apex, glandular-punctate, short-petiolate, persistent. Flowers on pedicels from the axils of large acuminate membranaceous alternate bracts deciduous before the open- ing of the flowers, in short terminal erect racemes; calyx 5-8-lobed, equal or un- equal, broadly ovate, rounded or acuminate at the apex, much shorter than the 5-8 obovate unguiculate concave white or rose-colored sepals; stamens 10, opposite and alternate with the sepals, inserted with and shorter than the petals, 2-ranked, those of the outer rank longer than the others; filaments laterally enlarged near the middle, flattened below, subulate above; disk cup-shaped, surrounding the base of the oblong 2-4- winged 2-4-celled ovary; stigma subsessile, obscurely 2-4-lobed; ovules 2 in each cell, suspended from its apex. Fruit oblong, 2-4-winged, crowned with the remnants of the persistent style, 3 or rarely 4-celled; pericarp spongy, the wings thin and membranaceous. Seed 1 in each cell, terete, tapering to the ends, suspended; cotyledons very short. Cliftonia is represented by a single species of the south Atlantic and Gulf states. The generic name is in honor of Dr. Francis Clifton (d. 1736), an English physi- cian. 1. Cliftonia monophylla, Sarg. Titi. Ironwood. Leaves l^'-2' long, ^'-V wide, bright green and lustrous on the upper, paler on the lower surface, persistent until the autumn of their second year. FloTwers fra- grant, appearing in February and March, in nodding racemes becoming erect, and conspicuous from the long exserted dark red-brown caducous bracts. Fruit about ^' long, ripening in August and September; seeds -^q'-^' long, light brown. A tree, occasionally 40°-50° high, with a stout often crooked or inclining trunk, occasionally 15'-18' in diameter and usually divided 12°-15° from the ground into a number of stout ascending branches, and slender rigid bright red-brown branchlets, becoming paler during their second and third seasons; or sometimes a shrub, with AQUIFOLIACE^ 613 numerous straggling stout or slender stems frequently only a few feet high or often 30°-40° high. Winter-buds about Y long. Bark of young stems and of large branches thin, the surface separating into small persistent scales l'-2' long, becom- ing near the base of old trees deeply furrowed, dark red-brown, 1' thick, and broken on the surface into short broad scales. Wood heavy, close-grained, moderately hard, brittle, not strong, brown tinged with red, with thick lighter colored sap- wood of 40-50 layers of annual growth ; burning with a clear bright flame, and valued as fuel. Distribution. Damp sandy peat soil in swamps almost submerged for several months in the year, or often in shallow rarely overflowed swamps; coast region of the south Atlantic states from the vallev of the Savannah River to northern Florida, and through the maritime Pine belt of the Gulf coast to eastern Louisiana. XXXI. AQUIFOLIACEiE. Trees or shrubs, with terete branchlets, scaly buds, and alternate simple entire crenate or pungently toothed petiolate persistent or deciduous leaves, with minute stipules. Flowers axillary, solitary or cymose, small, greenish, dioecious ; calyx 4— 6-lobed, the lobes imbricated in the bud, hypogynous ; petals 4-6, imbri- cated in the bud ; disk 0 ; stamens as many as and alternate with the petals and adnate to the base of the corolla ; anthers introrse, 2-celled, the cells opening longitudinally, small and sterile in the pistillate flower ; pistil compound ; ovary 4— 8-celled, minute and rudimentary in the staminate flower ; style short or 0 ; stigmas as many as the cells of the ovary, nearly confluent ; ovule generally solitary in each cell, suspended, anatropous ; raphe usually dorsal, the micro- pyle superior. Fruit a drupe, with as many indehiscent bony or crustaceous 1-seeded nutlets as carpels ; sarcocarp thin and fleshy. Seed narrowed at the ends, suspended ; seed-coat membranaceous, pale brown ; embryo minute in the apex of the copious fleshy albumen ; cotyledons plain ; the radicle superior. The Holly family with five genera is distributed in temperate and tropical regions of the two hemispheres. Of the five genera now recognized, only Ilex is important in the number of species or is widely distributed. 614 TREES OF NORTH AMERICA 1. ILEX, L. Characters of the family. Ilex with about one hundred and seventy-five species is found in all tropical and temperate regions of the world with the exception of western North America, Aus- tralia, New Zealand, Tasmania, and New Guinea, the largest number of species occurring in Brazil and Guiana. Of the thirteen species which inhabit eastern North America, five are small trees. Ilex contains a bitter principle, ilicin, and possesses tonic properties. Ilex Paraguariensis, St. Hilaire, of South America, furnishes the matd or Paraguay tea, and is the most useful of the species. The European Ilex Aquifolium, L., is a favorite garden plant, and is sometimes planted in the middle and southern United States. Ilex is the classical name of the Evergreen Oak of southern Europe. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Parts of the flower in 4's ; pedicels with bractlets at the base ; nutlets prominently ribbed on the back and sides ; leaves persistent. Leaves armed with spiny teeth ; young branchlets glabrous or sparingly pubescent. 1. I. opaca (A, C). Leaves serrate or entire. Leaves oblanceolate or obovate-oblong, mostly entire ; young branchlets pubescent ; calyx-lobes acuminate. 2. I. Cassine (C). Leaves elliptical or elliptical-oblong, coarsely crenulate-serrate ; young branchlets puberulous ; calyx-lobes obtuse. 3. I. vomitoria (C). Parts of the flower in 4's or 5's, rarely in 6's; pedicels without bractlets ; nutlets striate, many-ribbed on the back ; leaves deciduous. Leaves oblong-spatulate or lanceolate-obovate, remotely crenulate-serrate ; calyx-lobes broadly triangular. 4. I. decidua (A, C). Leaves ovate or lanceolate-oblong, sharply serrate ; calyx-lobes acute. 5. I. monticola (A). 1. Ilex opaca, Ait. Holly. Leaves elliptical to obovate-oblong, pungently acute, with thickened undulate margins and few stout spinose teeth, or occasionally quite entire, especially on the upper branches, thick, coriaceous, dull yellow-green, paler and often yellow on the lower surface, 2'-4' long, with prominent midribs and conspicuous veins, persistent on the branches for three years, finally deciduous in the spring; their petioles short, stout, thickened at the base, grooved above, slightly puberulent; stipules minute, broadly acute or nearly deltoid, persistent. Flowers appearing in spring on slender puberulous pedicels, with minute acute bractlets, in short pedunculate cymes from the axils of young leaves or scattered along the base of the young shoots, 3-9-flowered on the staminate and 1 or rarely 2 or 3-flowered on the pistillate plant; calyx-lobes acute, ciliate on the margins; stigmas broad and sessile. Fruit ripening late in the autumn, persistent on the branches during the winter, spherical or ovoid, dull red or rarely yellow, \' in diameter; nutlets prominently few-ribbed on the back and sides, rather narrower at the apex than at the base. A tree, sometimes 40°-50° high, with a trunk 2°, 3°, or exceptionally 4° in diame- ter, short slender branches forming a narrow pyramidal head, and stout branchlets covered at first with fine rufous pubescence disappearing during their first season, and becoming glabrous and pale brown. "Winter-buds short, obtuse or acuminate, \'-^ long, with narrow acuminate ciliate scales. Bark about \' thick, light gray and AQUIFOLIACE^ 615 roughened by wart-like excrescences. "Wood light, tough, not strong, close-grained, nearly white when first cut, turning brown with age and exposure, with thick rather lighter colored sap wood ; valued and much used in cabinet-making, in the interior finish of houses, and in turnery. The branches are used in large quantities for Christmas decoration. Distribution. Coast of Massachusetts, in the city of Quincy, southward gener- ally near the coast to the shores of Mosquito Inlet and Charlotte Harbor, Florida, valley of the Mississippi River from southern Indiana to the Gulf of Mexico, and through Missouri, Arkansas, and Louisiana to eastern Texas; rare and of small size east of the Hudson River and rare in the Alleghany Mountain region and the coun- try immediately west of it; most abundant and of its largest size on the bottom-lands of the streams of southern Arkansas and eastern Texas; at the north in dry rather gravelly soil often on the margins of Oak woods, southward on the borders of swampy river-bottoms, in rich humid soil. Occasionally cultivated in the eastern states as an ornamental plant. 2. Ilex Cassine, L. Dahoon. Leaves oblanceolate to obovate-oblong, acute, mucronate or rarely rounded and occasionally emarginate at the apex, gradually narrowed and cuneate at the base, revolute and entire or sometimes serrate above the middle, with sharp mucronate teeth, puberulous above and densely pubescent below when they first unfold, be- coming glabrous at maturity with the exception of scattered hairs on the lower sur- face of the broad midribs, dark green and lustrous above, pale below, l^'-3' long, and ^'-1' wide; their petioles short, stout, thickened at the base, sparingly villose. Flowers on hairy pedicels, with acute scarious bractlets, in pedunculate clusters, 3-9-flowered on the staminate plant, usually 3-fiowered on the pistillate plant, some- times nearly 1' long, from the axils of leaves of the year or occasionally of the pre- vious year; calyx-lobes acute, ciliate. Fruit ripening late in the autumn, persistent until the following spring, globose, sometimes ^' in diameter, bright or occasionally dull red or nearly yellow, solitary or often in clusters of 3's; nutlets prominently few-ribbed on the back and sides; rounded at the base, acute at the apex. A tree, 25°-30° high, with a trunk 12'-18' in diameter, and branches coated at 616 TREES OF NORTH AMERICA first with dense silky pubescence persistent until the end of the second or third year, ultimately dark brown and marked b}^ occasional lenticels; or often a low shrub. "Winter-buds minute, acute, with lanceolate scales thickly coated with pale silky pubescence. Bark of the trunk about ^' thick, dark gray, thickly covered and ^ roughened by lenticels. Wood light, soft, close-grained, not strong, pale brown, with thick nearly white sapwood. Distribution. Cold swamps and on their borders, in rich moist soil, or occasion- ally on the high sandy banks of Pine-barren streams; southern Virginia southward in J the immediate neighborhood of the coast to the shores of Bay Biscayne and Tampa Bay, Florida, and along the Gulf coast to western Louisiana; nowhere abundant on the Atlantic coast; most common in western Florida and southern Alabama; passing j through forms with elongated narrow leaves into the variety myrtifolia, Sarg. This is a low shrub or occasionally a slender wide-branched tree, with pale nearly white bark, puberulous branchlets, and crowded generally entire mucronate leaves ^'-1' long, \' wide, with strongly reflexed margins, very short petioles, and broad promi- nent midribs; an inhabitant of Cypress swamps and Pine-barren ponds or their mar- gins, in the neighborhood of the coast. North Carolina to Lotiisiana; perhaps to be considered a distinct species. 3. Ilex vomitoria. Ait. Cassena. Yaupon. Leaves elliptical to elliptical-oblong, obtuse, coarsely and remotely crenulate- serrate, coriaceous, dark green and lustrous above, pale and opaque below, l'-2' long, \'-V broad, persistent for two or three years, generally falling just before the appearance of the new growth of their third season; their petioles short, broad, and grooved. Flowers on slender club-shaped glabrous pedicels, with minute bractlets at the base, in short glabrous cymes on branchlets of the previous year, those of the staminate plant short-stemmed and many-flowered, those of the pistillate plant ses- sile and 1 or 2-flowered; calyx-lobes rounded, obtuse, often slightly ciliate; ovary contracted below the broad flat stigma. Fruit produced in great abundance, on stems not more than \' long, ripening late in the autumn or in early winter, soon deciduous, or persistent until spring, scarlet, nearly globose, about \' in diameter; nutlets obtuse at the ends, and prominently few-ribbed oii the back and sides. AQUIFOLIACE^ 617 A small much-branched tree, 20°-25° high, with a slender often inclining trunk rarely more than 6' in diameter and stout branchlets standing at right angles with the stem, slightly angled and puberulous during the first season, becoming glabrous /)Q J"02. or nearly glabrous, terete and pale gray in their second year; generally a tall shrub, with numerous stems forming dense thickets. Winter-buds minute, obtuse, with narrow dark brown or often nearly black scales. Bark of the trunk i\'-|' thick, the light red-brown surface broken into thin minute scales. Wood heavy, hard, close-grained, nearly white, turning yellow with exposure, with thick lighter colored sapwood. Distribution. Southern Virginia to the St. John's River and Cedar Keys, Flor- ida, and westward to the shores of Matagorda Bay and the valley of the upper Rio Blanco, Texas, and to southern Arkansas; in the Atlantic and east Gulf states rarely far from salt water and usually not more than 10°-15° high; of its largest size and of tree-like habit only on the rich bottom-lands of eastern Texas. The branches covered with the fruit are sold during the winter months for decorative purposes. An infusion of the leaves, which are emetic and purgative, was used by the Indians, who formerly visited the coast in large numbers every spring to drink it. 4. Ilex decidua, Walt. Leaves deciduous, except on vigorous shoots fascicled at the ends of short spur- like lateral branchlets, oblong-spatulate or spatulate-lanceolate, acuminate, obtuse, or emarginate at the apex, gradually narrowed below, remotely crenulate-serrate, 2'-3' long, ^-1' wide, membranaceous, becoming thick and firm at maturity, light green above and pale and sparingly hairy along the narrow midribs beneath; their petioles slender, grooved, pubescent, about ^' long; stipules filiform, membrana- ceous. Flowers on slender pedicels, those of the staminate plant often ^ long and longer than those of the pistillate plant, in 1 or 2-flowered glabrous cymes crowded at the ends of the lateral branches of the previous season, or rarely solitary on branchlets of the year; calyx-lobes triangular, with smooth or sometimes ciliate margins. Fruit on short stout stems, ripening in the early autumn, often remaining on the branches until the appearance of the leaves the following spring, globose or depressed-globose, orange or orange-scarlet, ^' in diameter; nutlets narrowed and rounded at the base, acute or acuminate at the apex, many-ribbed on the back. 618 TREES OF NORTH AMERICA A tree, 20°-30° high, with a slender trunk 6'-10' in diameter, stout spreading branches, and slender glabrous pale silver gray branchlets; more often a tall strag- gling shrub. Wiiiter-buds minute, obtuse, with ovate light gray scales. Bark of the trunk rarely more than ^^' thick, light brown, and roughened by wart-like excres- cences. "Wood heavy, hard, close-grained, creamy white, with rather lighter colored sap wood. Distribution. Borders of streams and swamps in low moist soil; southern Vir- ginia to western Florida in the region between the eastern base of the Appalachian f>^JOJ Mountains and the neighborhood of the coast, and through the Gulf states to the valley of the Colorado River, Texas, and through Arkansas and Missouri to southern Illinois; usually shrubby east of the Mississippi River and only arborescent in Missouri, southern Arkansas, and eastern Texas. In Florida a form (var. Curtissii, Fern.) occurs with leaves only J'-|' long and fruit about ^' in diameter. 5. Ilex monticola, Gray. Leaves deciduous, ovate to lanceolate-oblong, acute at the apex, cuneate or rounded at the base, sharply and rather remotely serrate, with minute glandular teeth, membranaceous, glabrous, or sparingly hairy along the prominent midribs and veins, 4:'-5' long, ^'-2' wide, light green above and pale below; their petioles slender, |'-^' long. Flowers appearing in June when the leaves are more than half grown, on slender pedicels ^' long on the staminate plant and much longer on the pistillate plant, in 1-2-flowered cymes crowded at the ends of lateral spur-like branchlets of the previous year, or solitary on branchlets of the year; calyx-lobes acute, ciliate; ovary contracted below the broad flat stigma. Fruit globose, bright scarlet, nearly 1' in diameter; nutlets narrowed at the ends, prominently ribbed on the back and sides. A tree, 30°-40° high, with a short trunk sometimes 10^-12' in diameter, slender branches forming a narrow pyramidal head, and more or less zigzag glabrous branch- lets pale red-brown at first, becoming dark gray at the end of their first season; more often a low shrub, with spreading stems. Winter-buds broadly ovate to sutglobose, about ^' long, with ovate keeled apiculate light brown scales. Bark of the trunk usually less than ^V thick, with a light brown surface roughened by numerous lenti- cels. Wood hard, heavy, close-grained, and creamy white. CELASTRACE.E 619 Distribution. Central anti western New York, southward along the Alleghany Mountains to northern Alabama; arborescent only on the banks of streams flowing from the Blue Ridge in North and South Carolina. XXXII. CELASTRACEiE. Trees or shrubs, with watery juice, and opposite or alternate simple per- sistent or deciduous leaves with or without stipules. Flowers regular, perfect, polygamous or dioecious, pedicellate in axillary clusters ; calyx 4-5-lobed, the lobes imbricated in the bud ; petals 4 or 5, imbricated in the bud ; stamens 4 or 5 ; anthers introrse, 2-celled, the cells opening longitudinally ; ovary 2-5- celled; ovules 2 or solitary in each cell (6 in Canotia), anatropous, or sub- horizontal Xm Canotia). Fruit a capsule or drupe. Seed with copious albu- men ; embryo axile. A family of about thirty-eight genera widely distributed over the tropical and warm temjDerate parts of the world, with four arborescent representatives in the United States. CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES. Parts of the flower in 4's. Leaves opposite, deciduous ; flowers polygamous ; fruit a fleshy 3-5-celled capsule ; seed surrounded by a colored aril. 1. Evonymus. Leaves alternate, persistent ; flowers dioecious ; fruit a drupe ; seed without an aril. Leaves often crenately serrate above the middle ; stipules minute, caducous ; fruit usually 1-seeded ; branchlets quadrangular. 2. Gyminda. i-'v* • ^ Leaves entire ; stipules 0 ; fruit 2-seeded ; branchlets terete. 3. Schaefferia. Parts of the flower in 5's, leaves 0 ; flowers perfect ; fruit a woody 5-celled capsule, the valves 2-lobed at the apex. 4. Canotia, 1. EVONYMUS, L. Small generally glabrous trees or shrubs, with usually square branchlets, bitter drastic bark, slender obtuse or acuminate winter-buds, and fibrous roots. Leaves opposite, petiolate, entire, crenate or dentate; stipules minute, caducous. Flowers perfect or polygamo-dioecious, in dichotomous axillary usually few-flowered cymes; calyx 4-lobed (in the North American arborescent species) ; disk thick and fleshy, 620 TREES OF NORTH AMERICA coherincf with and filling the short tube of the calyx, flat, 4-angled or lobed, closely surrounding and adhering to the ovary; petals inserted in the sinuses of the calyx under the free border of the disk, as many as and much longer than the calyx-lobes, spreading, deciduous; stamens as many as the petals and alternate with them, in- serted on the summit of the disk; filaments very short, subulate, erect or recurved; anthers 2-cclled, the cells nearly parallel or spreading below; ovary 4-celled; styles short, terminating in a depressed stigma; ovules usually 2 in each cell, ascending from the central angle, raphe ventral, micropyle inferior, or pendulous, the raphe then dorsal and the micropyle superior. Fruit capsular, 4-lobed and celled, fleshy, angled or winged, smooth (in the North American arborescent species), loculicidally 4-valved, the valves septiferous. Seeds 2 in each cell, or commonly solitary by abortion, ascending, surrounded by a colored aril; seed-coat chartaceous; albumen fleshy; embryo axile; cotyledons broad, coriaceous, parallel with the raphe; the radicle short, inferior. Evonymus is widely distributed through the northern hemisphere, extending south of the equator to the islands of the Indian Archipelago and to Australia. About forty species are distinguished, the largest number occurring in the tropical regions of southern Asia, and in China and Japan. Of the four species found within the ter- ritory of the United States one only is a small tree. Many of the species are rich in bitter and astringent principles, and are drastic and slightly stimulant. Many are valued as ornaments of gardens and parks. The generic name is from the classical name of one of the European species. 1. Evonymus atropurpureus, Jacq. Burning Bush. Wahoo. Leaves elliptical-ovate, acuminate, minutely serrate or biserrate, membranaceous, puberulous below, 2'-5' long, l'-2' broad, with stout midribs and primary veins, turning pale yellow in the autumn and falling in October; their petioles stout, ^'-V long. Flowers appearing from May to the middle of June, nearly |' across, with 4 rounded or rarely acute mostly entire calyx-lobes, broadly obovate undulate petals often erose on the margins, and spreading anthers, in twice or thrice dichotomous usually 7-15-flowered cymes borne on slender peduncles l'-2' long and conspicu- ously marked by the scars of minute bracts. Fruit ripening in October, usually persistent on the branches until midwinter, deeply lobed, i' across, with light purple CELASTRACEJE 621 valves; seeds sometimes gibbous on the dorsal side, broad and rounded above, nar- rowed below, ^' long, with a thin light chestnut-brown wrinkled coat and a thin scarlet aril. A tree, rarely 20°-25° high, with a trunk 4'-6' in diameter, spreading branches, and slender terete branchlets dark purple-brown at first, becoming lighter colored in the second season, often covered with small crowded lenticels, and marked by- prominent leaf-scars; more often a shrub, 6°-10° tall. Winter-buds ^' long, acute, with narrow purple apiculate scales scarious on the margins and covered by a glau- cous bloom. Bark thin, ashy gray, and covered by thin minute scales. "Wood heavy, hard, very close-grained, white tinged with orange. Distribution. Borders of woods in rich soil; western New York to Nebraska, southeastern South Dakota and eastern Kansas, and in the valley of the upper Mis- souri River, Montana, and southward to northern Florida, southern Arkansas, and the Indian Territory; arborescent only in southern Arkansas and eastern Texas. Occasionally cultivated as an ornament of gardens in the eastern United States and in Europe. 2. GYMINDA, Sarg. Trees or shrubs, with pale quadrangular branchlets and minute acuminate buds. Leaves opposite, short-petiolate, oblong-obovate, -rounded and sometimes emarginate at the apex, entire or remotely crenulate-serrate above the middle, with revolute thickened margins, feather-veined, coriaceous, persistent; stipules minute, acuminate, membranaceous, caducous. Flowers unisexual, pedicellate, in axillary pedunculate few-flowered dichotomously branched cymes bibracteolate at the apex ; calyx minute, 4-lobed, persistent, with a short urceolate tube and rounded lobes; disk fleshy, fill- ing the tube of the calyx, cup-shaped, slightly 4-lobed; petals entire, obovate, white, rounded at the apex, reflexed, much longer than the lobes of the calyx; stamens 4, opposite the sepals, inserted in the lobes of the disk, exserted, 0 in the pistillate flower; filaments slender, subulate, incurved; anthers oblong; ovary 2-celled, oblong, sessile, confluent with the disk, crowned with a large 2-lobed sessile stigma, rudimentary and deeply cleft in the staminate flower; ovule solitary, suspended from the apex of the cell; raphe dorsal; micropyle superior. Fruit drupaceous, 2-celled, 1 or 2-seeded, black or dark blue, oval or obovate, crowned with the remnants of the persistent stigma, often 1-celled by abortion; flesh thin; stone thick, crustaceous. Seed oblong, suspended; seed-coat membranaceous; albumen thin, fleshy; embryo axile; cotyle- dons ovate, foliaceous; radicle superior, next the hilum. Gyminda with a single species is distributed from southern Florida to Trinidad and southern Mexico, and is represented in Central America by what is perhaps a second species. The generic name Is formed by transposing the first three letters of Myginda, to which this plant had been referred. 1. Gyminda Grisebachii, Sarg. Leaves l^'-2' long, f'-l' broad, pale yellow-green. Flo"wers produced on shoots of the year from April to June. Fruit ripening in November, ^' long. A tree, sometimes 20°-25° high, with a trunk rarely more than 6' in diameter, and branchlets becoming terete during their third season and covered with thin slightly grooved roughened bright red-brown bark. Bark of the trunk thin, brown tinged with red, separating into thin minute scales. "Wood very heavy, hard, close-grained. 622 TREES OF NORTH AMERICA dark brown or nearly black, with thick light brown sapwood of 75-80 layers of annual growth. Distribution. Common and generally distributed over the keys of southern Florida from the Marquesas toMetacombe Key; also in Cuba, Porto Rico, Trinidad, and southern Mexico. A form (var. glaucescens, Sarg.) with smaller less coriaceous very glaucous leaves occurs in Cuba. 3. SCHiEFFERIA, Jacq. Glabrous trees or shrubs, with slender rigid terete branches and small obtuse buds. Leaves alternate, or fascicled on short spur-like branchlets, entire, obovate or spatulate, acute and minutely apiculate or gradually narrowed to the rounded or emar- ginate apex, cuneate below, persistent, without stipules. Flowers dioecious, pedi- cellate in axillary clusters from buds covered by scale-like persistent bracts; calyx 4-lobed, the lobes orbicular, persistent, much shorter than the 4 hypogynous, oblong- obtuse, white or greenish white petals; stamens 4, hypogynous, inserted under the margin of the small inconspicuous disk opposite the lobes of the calyx, wanting in the pistillate flower; filaments subulate, incurved; anthers oblong-ovate; ovary 2-celled, ovoid, sessile, free, rudimentary in the staminate flower; style very short, gradually enlarged into the large 2-lobed stigma, with spreading lobes; ovule soli- tary, ascending; raphe thin, ventral; the micropyle inferior. Fruit a small 2-seeded fleshy drupe, ovate or obovate, crowned with the remnants of the persistent style, indistinctly 2-lobed by longitudinal grooves, slightly flattened; flesh thin and tuber- culate; nutlets 2, obovate, rounded at the ends, with a thick bony shell. Seed solitary, ascending; seed-coat membranaceous; albumen fleshy; cotyledons broad, foliaceous; the radicle very short, inferior, next the hilum. Two species of SchsefPeria are recognized, one a small tree widely distributed through the Antilles and reaching the islands of southern Florida and central America, the second a little-known shrub of the arid region of western Texas and northern Mexico. The generic name is in honor of Jakob Christian Schaeffer (1718-1790), the dis- tinguished German naturalist. CELASTRACE^ 623 1. Schaeflferia frutescens, Jacq. Yellow "Wood. Box Wood. Leaves bright yellow-green, 2'-2^' long, ^'-1' wide, with thick revolute margins, appearing in Florida in April and persistent on the branches until the spring of the fol- lowing year; their petioles short and broad. Flowers opening in spring on branchlets of the year, ^' across, the staminate generally 3 or 5 together on pedicels rarely more than y long, the pistillate solitary or 2 or 3 together on pedicels rather longer than the petioles. Fruit ripening in Florida in November, slightly grooved, compressed, bright scarlet, with an acrid disagreeable flavor. A glabrous tree, 35°-40° high, with a trunk sometimes 8^-10' in diameter, erect branches, and slender many-angled branchlets pale greenish yellow during their first season, becoming light gray during the second year and then conspicuously marked by the remains of the persistent wart-like clusters of bud-scales; or often a tall or low shrub. Bark of the trunk rarely more than J^' thick, pale brown faintly tinged with red, the surface divided by long shallow fissures, and ultimately separating into long narrow- scales. Wood heavy, close-grained, bright clear yellow, with thick rather lighter colored sapwood; sometimes used as a substitute for boxwood in wood engraving. Distribution. Metacombe Key eastward along the keys, in the neighborhood of the Caloosa River, and sparingly on the reef keys, Florida; on the Bahama Islands, and widely distributed through the West Indies to Venezuela. 4. CANOTIA, Torr. A glabrous leafless tree, with light brown deeply furrowed bark, stout terete alter- nate branches terminating in rigid spines, pale green and striate, their bases and those of the peduncles surrounded by black triangular persistent cushion-like pro- cesses minutely papillose on the surface. Flowers perfect, on slender spreading pedicels joined below the middle, 3-7 together, in short-stemmed fascicles or corymbs near the ends of the branches, from the axils of minute ovate subulate bracts; calyx 5-lobed, minute, persistent, much shorter than the oblong obtuse white hypogynous petals imbricated in the bud, reflexed at maturity above the middle, deciduous; sta- mens 5, hypogynous, opposite the lobes of the calyx; filaments awl-shaped, rather shorter than the petals, persistent on the fruit; anthers oblong, cordate, introrse, 624 TREES OF NORTH AMERICA minutely apiculate, attached below the middle, grooved on the back; ovary raised upon and confluent with a fleshy slightly 10-angled gynophore, papillose-glandular on the surface, 5-celled, the cells opposite the petals, terminating in a fleshy elon- gated style; stigma slightly 5-lobed; ovules 6 in each cell, inserted in 2 ranks on its inner angle, subhorizontal; mieropyle inferior. Fruit a woody terete oblong capsule tapering at the ends, crowned with a subulate persistent style, septicidally 5-valved, the valves 2-lobed at the apex; outer coat thin, fleshy; inner coat woody. Seed soli- tary or in pairs, ascending, subovate, flattened; seed-coat subcoriaceous, papillate, produced below into a subfalcate membranaceous wing; embryo surrounded by thin fleshy albumen, erect; cotyledons oval, compressed; radicle very short, inferior. The genus is represented by a single species. The generic name is that by which this plant was known to the Mexicans of Arizona at the time of its discovery. 1. Canotia holacantha, Torr. Leaves 0. Flo"wers ^'-\' in diameter, appearing from June until October. Capsule 1' long; seed about |' long. A small shrub-like tree, sometimes 20°-30° high, with a short stout trunk rarely a foot in diameter; or often a low spreading shrub. Distribution. Dry gravelly mesas on the Arizona foothills, from the White Mountain region to the valley of Bill Williams's Fork in the northwestern part of the territory, and on Providence Mountain in southern California. XXXIII. ACERACE^. Trees or rarely shrubs, with limpid juice, terete branches, scaly buds, their inner scales accrescent and marking the base of the branchlets with ring-like scars, and fibrous roots. Leaves opposite, long-petioled, simple, palmately 3_7-lobed or pinnately 3-5-foHolulate, usually without stipules, deciduous, in falling leaving small U-shaped narrow scars showing the ends of 3 equidistant fibro-vascular bundles. Flowers regular, dioeciously or monoeciously polyga- mous, rarely perfect or dioecious, in fascicles produced from separate lateral buds appearing before the leaves or in terminal and lateral racemes or panicles ACERACEJE 625 appearing with or later than the leaves ; bracts minute, caducous ; calyx colored, generally 5-parted, the lobes imbricated in the bud ; petals usually 5, imbricated in the bud, or 0 ; disk annular, fleshy, more or less lobed, with a free margin ; stamens 4-10, usually 7 or 8, inserted on the summit or inside of the disk, hypogynous ; filaments distinct, filiform, commonly exserted in the staminate, shorter and generally abortive in the pistillate flower ; anthers ob- long or linear, attached at the base, introrse, 2-celled, the cells opening longi- tudinally ; ovary 2-lobed, 2-celled, compressed contrary to the dissepiment, wing-margined on the back ; styles 2, inserted between the lobes of the ovary, connate below and divided into 2 linear branches stigmatose on their inner surface ; ovules 2 in each cell, collateral, rarely superposed, ascending, attached by their broad bases to the inner angle of the cell, anatropous or amphitropous ; micropyle inferior. Fruit composed of 2 samaras separable from a small per- sistent axis, the nut-like carpels compressed laterally, produced on the back into large chartaceous or coriaceous reticulated obovate wings thickened on the lower margin. Seed solitary by abortion, or rarely 2 in each cell, ovate, compressed, irregularly 3-angled, ascending obliquely, without albumen ; seed-coat mem- branaceous, the inner coat often fleshy ; embryo conduplicate ; cotyledons thin, foliaceous or coriaceous, irregularly plicate, incumbent or accumbent on the elongated descending radicle turned toward the hilum. A family of two genera, one widely distributed, the other, Dipteronia, dis- tinguished by the broad wings encircling the mature carpels, and represented by a single Chinese species. 1. ACER, L. Maple. Characters of the family. Acer with sixty or seventy species is widely distributed over the northern hemi- sphere, with a single species extending south of the equator to the mountains of Java. Acer produces light close-grained moderately hard wood valued for the interior finish of houses and in turnery. The bark is astringent, and the limpid sweet sap of some of the American species is manufactured into sugar. Acer is the classical name of the Maple-tree. CONSPECTUS OF THE NORTH AMERICAN SPECIES. 1. Leaves simple. *Flowers appearing with or after the leaves from terminal buds ; fruit ripening in the autumn. Flowers with petals, appearing- after the leaves. Flowers in erect dense racemes ; leaves 3 or slightly 5-lobed. 1. A. spicatum (A). Flowers in drooping racemes. Ovary and young fruit glabrous ; leaves 3-lobed at the apex. 2. A. Pennsylvanicum (A). Ovary and young fruit hairy ; leaves deeply 5-lobed. 3. A. macrophyllum (G). Flowers in terminal pendent corymbs. Leaves palmately 7-9-lobed. 4. A. circinatum (B, G). Leaves 3-lobed or 3-parted. 5. A. glabrum (B, F, G). Flowers without petals, appearing after the leaves, in nearly sessile umbel-like ter- minal and lateral j>€ndent corymbs. Corymbs sessile. 626 TREES OF NOHTH AMERICA Leaves pale or glaucous beneath. Leaves dark green above, glabrpus beneath at maturity, their lobes coarsely toothed or rarely entire. 6. A. Sacchaium (A, C). Leaves pale pubescent beneath, their lobes short and obtuse. 7. A. Floridanum (C). Leaves green beneath. Leaves yellow-green above, more or less hirsute-pubescent, especially be- neath and on the petioles, their lobes entire or undulate, the liasal sinus often closed by the overlapping lobes. 8. A. nigrum (A). Leaves tomentulose or rarely glabrous beneath, their lobes slightly lobulate, sometimes acuminate. 9. A. leucoderme (C). Corymbs short-stalked ; leaves pale and usually pubescent beneath, o-lobed, the lobes distinctly lobulate, acute or obtuse. 10. A, grandidentatum (F, H). **Flowers appearing before the leaves in umbel-like fascicles from separate lateral buds ; fruit ripening in spring or early summer. Flowers sessile or short-stalked, without petals ; ovary and young fruit tomentose ^ leaves deeply 5-lobed. 11. A. saccharinum (A, C). Flowers on long pedicels, with petals ; ovary and young fruit glabrous ; leaves 3-5- lobed. 12. A rubrum (A, C). 2. Leaves pinnately or ternately divided ; flowers dioecious, without petals. 13. A. Negundo (A, C, F, G). 1. Leaves simple. *Flowers appearing with or after the leaves- fruit ripening in the autumn. 1. Acer spicatum, Lam. Mountain Maple. Leaves subcordate or sometimes truncate at the base, conspicuously 3-nerved, 3 or slightly 5-lobed, with gradually narrowed pointed lobes, and sharply and coarsely Ii^ J09 glandular-serrate, when they unfold puberulous on the upper and densely tomentose on the lower surface, and at maturity membranaceous, 4'-5'' long and broad, turning in the autumn to various shades of orange and scarlet; their petioles slender, enlarged at the base, 2'-3' long, often becoming scarlet in summer. FloTvers opening in June after the leaves are fully grown, on slender pedicels ^'-f in length, \' in diameter, the pistillate toward the base and the staminate at the apex of narrow many-flowered ACEKACE^ 627 long-stemmed upright slightly compound pubescent racemes; calyx-lobes narrowly obovate, yellow, pubescent on the outer surface, much shorter than the linear spatu- late pointed yellow petals; stamens 7 or 8, inserted immediately under the ovary, with slender glabrous filaments as long as the petals in the sterile flower, about as long as the sepals in the pistillate flower, and glandular anthers; ovary hoary- tomentose, reduced to a minute point surrounded by a tuft of pale hairs in the stami- nate flower; style columnar, almost as long as the petals, with short stigmatic lobes. Fruit fully grown and bright red in July, turning brown late in the autumn, almost glabrous, with more or less divergent wings about ^' long; seeds smooth, dark red brown, 1' long. A bushy tree, occasionally 25°-30° high, with a short trunk 6'-8' in diameter, small upright branches, and slender branchlets light gray and pubescent when they first appear, becoming glabrous during the summer, bright red during their first winter, gray or pale brown the following season, and blotched or streaked with green toward the base; more often a tall or low shrub. Winter-buds acute; termi- nal Y long, with bright red outer scales more or less coated with hoary tomentum, those of the inner ranks becoming at maturity V or more long and then lanceolate, pale and papery; axillary much smaller and glabrous or puberulous. Bark of the trunk very thin, reddish brown, smooth or slightly furrowed. Wood light, soft, close-grained, light brown tinged with red, with thick lighter colored sapwood. Distribution. Moist rocky hillsides usually in the shade of other trees, and really arborescent only on the western slopes of the high mountains of Tennessee and North Carolina; valley of the lower St. Lawrence River to northern Minnesota and the Saskatchewan, and southward through the northern states and along the Appa- lachian Mountains to northern Georgia. Occasionally cultivated as an ornament of parks and gardens in the northern states. 2. Acer Pennsylvanioum, L. Striped Maple. Moose Wood. Leaves rounded or cordate at the base, palmately 3-nerved, 3-lobed at the apex, with short lobes contracted into tapering serrate points, and finely and sharply doubly serrate, when they unfold thin and membranaceous, pale rose color and coated with ferrugineous pubescence, especially on the lower surface and on the petioles, and at maturity glabrous with the exception of tufts of ferrugineous hairs in the axils of the principal nerves on the two surfaces, membranaceous, pale green above, rather paler below, o'-6' long and 4'-5' wide, turning in the autumn clear light yellow; their petioles stout, grooved, 1^-2' long, with enlarged bases nearly encircling the branch. Flowers bright canary-yellow, opening toward the end of May or early in June when the leaves are nearly fully grown, on slender pedicels \'-^' long, in slender drooping long-stemmed racemes 4'-6' in length, the staminate and pistillate usu- ally in different racemes on the same plant; sepals linear-lanceolate to obovate, ^' long and a little shorter and narrower than the obovate petals; stamens 7-8, shorter than the petals in the staminate flower, rudimentary in the pistillate flower; ovary purplish brown, glabrous, in the staminate flower reduced to a minute point; style stout, united near the top, with spreading recurved stigmas. Fruit in long drooping racemes, glabrous, with thin spreading wings |' long, and marked on one side of each nutlet by a small cavity; seeds ^' long, dark red-brown, and slightly rugose. A tree, 30°-40° high, with a short trunk 8'-10' in diameter, small upright branches, and slender smooth branchlets pale greenish yellow at first, bright reddish 628 TREES OF NORTH AMERICA brown during their first winter, and. at the end of two or three years striped like the trunk with broad pale lines; or often much smaller and shrubby in habit. Winter- buds: terminal, conspicuously stipitate, sometimes almost ^' long, much longer than the axillary buds, covered by two thick bright red spatulate boat-shaped scales pro- minently keeled on the back, the inner scales green and foliaceous, becoming l|'-2' long, ^' wide, pubescent, and bright yellow or rose color. Bark of the trunk \'-^' thick, reddish brown, marked longitudinally by broad pale stripes, and roughened by many oblong horizontal excrescences. Wood light, soft, close-grained, light brown, with thick lighter colored sap wood of 30-40 layers of annual growth. Distribution. Usually in the shade of other trees, often forming in northern New England a large part of their shrubby undergrowth; shores of Ha-Ha Bay, Quebec, westward along the shores of Lake Ontario and the islands of Lake Huron to northeastern Minnesota, and southward through the Atlantic states and along the Appalachian Mountains to northern Georgia; common in the north Atlantic states, especially in the interior and elevated regions; of its largest size on the slopes of the Big Smoky Mountains, Tennessee, and of the Blue Ridge in North and South Carolina. Sometimes cultivated as an ornamental tree in the northern states, and occasion- ally in Europe. 3. Acer macrophyllum, Pursh. Broad-leaved Maple. Leaves cordate at the base by a deep narrow sinus deeply 3-5-cleft, with sinuate acuminate divisions furnished with 2 or 3 acute lobes, and prominently 3-5-nerved, puberulous when they unfold, especially on the upper surface along the principal veins, and at maturity subcoriaceous, dark green and lustrous on the upper, pale on the lower surface, 8'-12' in diameter, turning in the autumn bright orange color before falling; their petioles stout, 10'-12' long, with enlarged bases united and en- circling the stem and often furnished on the inside with small tufts of white hairs. Flo-wers bright yellow, fragrant, \' long, on slender pubescent often branched pedi- cels y-f' long, the staminate and pistillate together in graceful pendulous slightly puberulous racemes 4'-6' long, appearing in April and May after the leaves are fully grown; sepals petaloid, obovate, obtuse and a little longer and broader than the spat- ulate petals ; stamens 9-10, with long slender filaments hairy at the base, exserted ACERACE^ 629 in the staminate and included in the pistillate flower, and orange-colored anthers; ovary hoary-tomentose, reduced in the staminate flower to a minute point; styles united at the base only; stigmas long and exserted. Fruit fully grown by the 1st of July and ripening late in the autumn; carpels covered with long pale hairs, their wings 1^' long, ^' wide, slightly divergent and glabrous with the exception of a few hairs on the thickened edge; seeds dark-colored, rugose and pitted, ^' long. A tree, 80°-100° high, with a tall straight trunk 2°-3° in diameter, stout often pendulous branches forming a compact handsome head, and stout branchlets smooth and pale green at first, becoming bright green or dark red in their first winter, covered more or less thickly with small longitudinal white lenticels, and in their sec- ond summer gray or grayish brown. Winter-buds obtuse; terminal ^' long, with sl^ort broad slightly spreading dark red ciliate outer scales rounded on the back, those of the inner ranks green and foliaceous, and at maturity 1^' long, colored and puberulous; axillary buds minute. Bark of the trunk ^'-f thick, brown faintly tinged with red or bright reddish brown, deeply furrowed and broken on the surface into small square plate-like scales. Wood light, soft, not strong, close-grained, rich brown tinged with red, with thick lighter colored often nearly white sapwood of 60-80 layers of annual growth; more valuable than the wood produced by other deciduous trees of western North America, and in Washington and Oregon largely used in the interior finish of buildings, for furniture, and for axe and broom-handles. Distribution. Banks of streams or on rich bottom-lands or the rocky slopes of mountain valleys; coast of Alaska south of latitude 55° north, southward along the islands and coast of British Columbia, through Washington and Oregon west of the Cascade Mountains, and southward along the coast ranges and the western slopes of the Sierra Nevada to the San Bernardino Mountains, and to Hot Spring Valley, San Diego County, California; rarely ascending to more than 2000° above the level of the sea; most abundant and of its largest size in the humid climate and rich soil of the bottom-lands of southwestern Oregon, forming extensive forests; in Cali- fornia usually much smaller, especially on the coast ranges. Occasionally cultivated in the eastern states, and hardy as far north as eastern Pennsylvania. 630 TREES OF NORTH AMERICA 4. Acer circinatum, Pursh. Vine Maple. Leaves almost circular in outline, cordate at the base by a broad shallow sinus, or sometimes almost truncate, palmately 7-9-lobed occasionally nearly to the middle, with acute lobes sharply and irregularly doubly serrate, and conspicuously palmately nerved, with prominent veinlets, when they unfold tinged with rose color and puberu- lous, especially on the lower surface and on the petioles, and at maturity glabrous with the exception of tufts of pale hairs in the axils of the large veins, thin and membranaceous, dark green above, pale below, and 2'-7' in diameter, in the autumn turning orange and scarlet; their petioles stout, grooved, l'-2' long, clasping the stem by their large bases. Flo"wers appearing when the leaves are about half grown, in loose 10-20-flowered umbel-like corymbs pendent on long stems from the ends of slender 2-leaved branchlets, the staminate and pistillate flowers produced together; sepals oblong to obovate, acute, villous, purple or red, much longer than the greenish white broadly cordate petals folded together at the apex; stamens 6-8, with slender filaments villous at the base, exserted in the staminate flower, much shorter than the petals in the pistillate flower; ovary glabrous, with spreading lobes, in the staminate flower reduced to a small point surrounded by a tuft of pale hairs; style divided nearly to the base into long exserted stigmas. Fruit with thin wings, ly long, spreading almost at right angles, red or rose color like the carpels in early summer, ripening late in the autumn; seeds smooth, pale chestnut- brown, iH' long- A tree, rarely 30°-40° high, often vine-like or prostrate, with a trunk 10'-12' in diameter, and glabrous pale green or reddish brown branchlets frequently covered during their first winter with a glaucous bloom, and occasionally marked by small lenti- cels; often a low wide-spreading shrub. "Winter-buds l' long, rather obtuse, with thin bright red outer scales rounded on the back and obovate-spatulate inner scales, rounded at the apex, contracted into long narrow claws, bright rose-colored and more or less pubescent, especially on the outer surface, and when fully grown often 2' long and \' broad. Bark of the trunk thin, smooth, bright red-brown, marked by numerous shallow fissures. Wood heavy, hard, close-grained, not strong, light brown, sometimes nearly white, with thick lighter colored sapwood; used for fuel, the handles of axes and other tools, and by the Indians of the northwest coast for the bows of their fishing-nets. ACERACE.E 631 Distribution. Banks of streams; coast of British Columbia southward through Washington and Oregon to Mendocino County, California; one of the most abundant of the deciduous-leaved trees of Washington and Oregon up to elevations of 4000° above the sea, and of its largest size on the low alluvial soil of bottom-lands, its vine-like stems in such situations springing 4 or 5 together from the ground, spread- ing in wide curves and sending out long slender branches rooting when they touch the ground and forming impenetrable thickets of contorted and interlaced trunks, often many acres in extent; in California smaller and less abundant, growing along streams in the coniferous forest. Occasionally cultivated as an ornamental plant in Europe, and in the eastern states, and hardy as far north as eastern Massachusetts. ' 5. Acer glabrum, Torr. Dwarf Maple. Leaves glabrous, membranaceous, rounded in outline, cordate-truncate or wedge- shaped at the base, 3-5-lobed or often 3-parted or 3-foliolate, with acute or obtuse doubly serrate lobes, l'-5' in diameter, dark green and lustrous on the upper, paler on the lower surface, with conspicuous veinlets ; their petioles stout, grooved, l'-6' long, and often bright red. Flowers about ^' in length on short slender pedicels, in loose few-flowered glabrous racemose corymbs, on slender drooping peduncles from the ends of 2-leaved branchlets, the starainate and pistillate usually produced sepa- rately on different plants; sepals oblong, obtuse, petaloid, as long as the greenish yellow petals; stamens 7 or 8, with glabrous unequal filaments shorter than the greenish yellow linear petals, much shorter or rudimentary in the pistillate flower; ovary glabrous, with short obtuse lobes, rudimentary or 0 in the staminate flower; style divided to the base into 2 spreading stigmatic lobes as long as the petals. Fruit glabrous, with broad nearly erect or slightly spreading wings f — |' loirg, often rose- colored during the summer; seeds ovate, bright chestnut-brown, about ^ long. A low tree, occasionally 40° high, with a short trunk 18' in diameter, small upright branches, and slender glabrous branchlets often slightly many-angled, pale greenish brown at first, becoming bright red-brown during their first winter; usually smaller, and more often a shrub 4°-5° high. Winter-buds acute, Y long, with bright red or occasionally yellow scales, those of the inner ranks pale brown tinged with pink, tomentose on the inner surface, becoming 11' long and narrowly spatulate. Bark 632 TREES OF NORTH AMERICA of the trunk thin, smooth, and dark reddish brown. "Wood lieavy, hard, close-grained, light brown or often nearly white, with thick lighter colored sapwood. Distribution. Borders of mountain streams usually at elevations of 5000°-G000° above the sea, and northward sometimes descending to the sea-level; liead of Lynn Canal, Alaska, over the mountain ranges of western America, extending southward in California along the Sierra Nevada to the west fork of the Kaweah River, and eastward to northwestern Nebraska, the eastern slopes of the Rocky Mountains of Colorado, eastern New Mexico and Arizona; of its largest size on the coast of Van- couver Island and on the Blue Mountains of Oregon; also arborescent in some of the elevated canons of Idaho, New Mexico, and Arizona; usually shrubby. Occasionally cultivated in the eastern states, and hardy as far north as eastern Massachusetts. 6. Acer Saocharum, Marsh. Sugar Maple. Rock Maple. Leaves heart-shaped by a broad sinus, truncate or sometimes wedge-shaped at the base, 3-o-lobed, with rounded sinuses, usually acute sparingly sinuate-toothed fk^jiH- lobes, 3-5 conspicuous nerves, and reticulate veinlets, when they unfold coated below with pale pubescence, glabrous at maturity, 4'-5' in diameter, often rather coria- ceous, dark green and opaque on the upper, pale on the lower surface, turning in the autumn brilliant shades of deep red, scarlet and orange or clear yellow; their petioles slender, glabrous, 1^-3' long. Flowers appearing with the leaves on slender hairy pedicels 21' -3' long, in nearly sessile umbel-like corymbs from terminal leaf -buds and lateral leafless buds, the staminate and pistillate in separate clusters on the same or on different trees; calyx broadly campanulate, 5-lobed by the partial union of the obtuse sepals, greenish yellow, hairy on the outer surface; corolla 0; stamens 7-8, with slender glabrous filaments twice as long as the calyx in the staminate flower and much shorter in the pistillate flower; ovary obtusely lobed, pale green, covered with long scattered hairs, in the staminate flower reduced to a minute point; styles united at the base only, with 2 long exserted stigmatic lobes. Fruit ripening in the autumn, glabrous, with broad, thin, and usually divergent wings ^'-V long; seeds smooth, bright red,-brown, ^' long. A tree, 100°-120° high, with a trunk often 3°^° in diameter, rising sometimes in the forest to the height of 60°-70° without branches, or in open situations devel- ACERACE^ 633 oping- 8°-10° from the ground stout upright branches forming while the tree is young a narrow egg-shaped head, ultimately spreading into a broad round-topped dome often 70°-80° across, and slender branchlets green at first, becoming reddish brown by the end of their first season, lustrous, marked by numerous large pale oblong lenticels, and in their second winter pale brown tinged with red. Winter- buds acute, I' long, with purple slightly puberulous outer scales, and inner scales becoming 1^' long, narrowly obovate, short-pointed at the apex, thin, pubescent, and bright canary yellow. Bark of young stems and of large branches pale, smooth or slightly fissured, becoming on large trunks ^'— |' thick and broken into deep longitu- dinal furrows, the light gray-brown surface separating into small gray-brown scales. Wood heavy, hard, strong, close-grained, tough, light brown tinged with red, with thin sapwood of 30-40 layers of annual growth* largely used for the interior finish of buildings, especially for floors, in the manufacture of furniture and in turnery, in shipbuilding, shoe-lasts and pegs, and largely as fuel. Accidental forms with the grain curled and contorted, known as curly maple and bird's eye maple, are common and are highly prized in cabinet-making. The ashes of the wood are rich in alkali and yield large quantities of potash. Maple sugar is principally made from the sap of this tree. Southward passing into Acer Saccharum, var. Rugelii, Rehd. A large tree, with subcoriaceous leaves usually rather broader than long, pale or glaucous and pubescent or rarely glabrous below, cordate, with a broad open sinus, or truncate at the base, and usually 3-lobed, with open round sinuses and acuminate generally entire lobes. This is the common and frequently the only form of the Sugar Maple in the region from North Carolina and Georgia to Missouri, and it occasionally occurs northward to Michigan and Prince Edward's Island, leaves of this form sometimes appearing on the upper branches of trees bearing on their lower branches typical leaves of the northern Sugar Maple. Very frequently planted as a shade and ornamental tree in the northern states. In the streets and gardens of the towns and cities of northern Alabama and northern Georgia the variety Rugelii is largely used. 634 TREES OF NORTH AMERICA 7. Acer Floridanuni, Pax. Sugar Maple. (Acer Saccharumy var. Floridanumy Silva N. Am. xiii. 7.) Leaves rounded, truncate or slig-htly cordate at the broad base, 3-5-lobed, with short obtuse or acute entire or lobulate lobes, when they unfold sparingly hairy on the upper and hoary-tomentose on the lower surface, and at maturity membrana- ceous, dark green and lustrous above, pale and pubescent below, l^'-3' in diameter, and prominently 3-5-nerved, with stout spreading lateral veins and conspicuous reticulate veiulets, turning yellow and scarlet in the autumn before falling; their petioles slender, glabrous, or pubescent becoming glabrous, 1^-3' long, with enlarged bases nearly encircling the branchlet. Flowers appearing with the leaves on slen- der elongated sparingly hairy ultimately glabrous pedicels, in many-flowered droop- ing nearly sessile corymbs; calyx campanulate, yellow, about \' long, persistent IQ Jl6 under the fruit, the short lobes ciliate on the margin, with long pale hairs; corolla 0. Fruit green, sparingly villose until fully grown, usually becoming glabrous, with spreading occasionally erect wings \'-^' long; seeds smooth, bright red-brown, about \' long- A tree, occasionally 50°-60° high, with a trunk rarely 3° in diameter, small erect and spreading branches, and slender glabrous branchlets, light green at first, becom- ing rather light red-brown during their first season, and covered with minute pale lenticels ; usually smaller, and westward generally a low shrub. Winter-buds obtuse, about y long, with dark chestnut-brown obtuse scales and bright rose-colored linear- spatulate inner scales often 1' long when fully grown. Bark of the trunk thin, smooth, pale, becoming near the base of old trees thick, dark, and deeply furrowed. Distribution. River swamps, southern Georgia and western Florida to Louisi- ana, southern Arkansas, and eastern Texas, and westward on the banks of streams usually as a shrub to the valley of the upper Rio Cibolo, Texas, and on the Sierra Madre of Nuevo Leon. 8. Acer nigrum, Michx. Black Maple. Leaves generally 3 or occasionally 5-lobed, with acute or acuminate lobes, undulate and narrowed from broad shallow sinuses, or rarely furnished with short ACERACE^ 635 lateral spreading lobes, cordate, with a broad sinus usually more or less closed by the approximation or imbrication of the basal lobes, covered below when they unfold with hoary tomentum and above with caducous pale hairs, and at maturity thick and firm in texture, dull green on the upper surface, yellow-green and soft- pubescent, particularly along the yellow veins on the lower surface, and 5'-6' across, with drooping sides, turning bright clear yellow in the autumn ; their petioles stout, tomentose or pubescent, sometimes becoming glabrous at maturity, usually pendent, 3-5' long, much enlarged at the base, frequently nearly inclosing the buds, in fall- ing leaving narrow scars almost encircling the branchlet, and furnished in their axils with tufts of long pale hairs; stipules triangular and dentate or foliaceous, sessile or stipitate, oblong, acute, tomentose or pubescent, sometimes slightly lobed, frequently 1^' long. Flo-wers yellow, about ^' long, on slender hairy pedicels 2i'-3' long, in many-flowered nearly sessile umbel-like corymbs, the staminate and pistillate in separate or in the same clusters on the same or on different trees; calyx broadly campanulate, 5-lobed by the partial union of the sepals, pilose on the outer surface near the base; corolla 0; stamens 7 or 8, with slender glabrous filaments, in the staminate flower nearly twice as long as the calyx and in the pistillate flower shorter than the calyx; ovary obtusely lobed, pale green, covered with long scattered hairs, minute in the sterile flower. Fruit glabrous, with convergent or wide-spreading wings ^'-V long; seeds smooth, bright red-brown, y long. A tree, sometimes 80° high, with a trunk frequently 3° in diameter, stout spread- ing or often erect branches, and stout branchlets marked by oblong pale lenticels, when they first appear orange-green and pilose, with scattered pale caducous hairs, orange or orange-brown and lustrous during their first year, becoming dull pale gray- brown the following season. Winter-buds sessile, ovate, acute, \' long, with dark red-brown acute scales hoary-pubescent on the outer surface and often slightly ciliate on the margins, and yellow puberulous inner scales, ^'-1' long at maturity. Bark of young stems and of the branches thin, smooth, pale gray, becoming on old trunks thick, deeply furrowed, and sometimes almost black. Distribution. Valley of the St. Lawrence River in the neighborhood of Mon- treal, southward to the valley of Cold River, New Hampshire, through western Ver- mont, and westward through northern New York, Ontario, the southern peninsula of Michigan, Indiana, Illinois, and Iowa, to northeastern South Dakota, western 636 TREES OF NORTH AMERICA Missouri, eastern Kansas, and southward through western New York and Pennsyl- vania to southwestern Virginia, and Kentucky; comparatively rare near Montreal and in Vermont, more abundant farther west, almost entirely replacing Acer Saccha- rum in Iowa, and the only Sugar Maple of South Dakota; easily distinguished in summer by its heavy drooping leaves, and at all seasons of the year by the orange color of the branchlets. Occasionally planted in the region where it grows naturally as a shade-tree. 9. Acer leucoderme, Small. Sugar Maple. (Acer Sacchanim, var. leucoderme, Silva N. Am. xiii. 7.) Leaves usually truncate or slightly cordate at the base, more or less deeply divided into 3-5 acute caudate-acuminate lobes coarsely and sinuately dentate or undulate, when they unfold coated below with long matted pale caducous hairs, and at maturity thin, dark yellow-green above, bright yellow-green and covered below with soft close velvety pubescence, 2'-3|^' in diameter, often turning in the autumn bright scarlet on the upper surface before falling; their petioles slender, glabrous, I'-l^' long. FloTvers yellow, about ^ long, on slender, glabrous pedicels, in nearly sessile clusters; calyx campanulate, glabrous or slightly villose, with rounded ciliate lobes; corolla 0; stamens 7 or 8, their filaments longer than the calyx, much shorter than the calyx in the pistillate flower; style elongated, with short spreading lobes. Fruit villose, with long scattered pale hairs until nearly grown, becoming glabrous at maturity, the wings wide-spreading or divergent, |'-f ' long; seeds smooth, light red-brown, about ^' long. A tree, usually 20°-25° high, with a trunk a foot in diameter, occasionally 40° high, with a trunk 18'-20' in diameter, short slender branches forming a rather com- pact round-topped head, and slender glabrous branchlets dark green when they first appear, becoming bright red-brown and lustrous during their first summer, and marked by numerous small oblong pale lenticels, gradually growing darker in their second year and finally light gray-green. Winter-buds ovate, acute, dark brown, glabrous, rather more than ^^g' long, the inner scales becoming bright crimson and very conspicuous when the trees are in flower in early spring. Bark of young stems and large branches close, light gray or grayish brown, becoming near the base of old ACERACE^ 637 individuals dark brown or often nearly black and broken by deep furrows into nar- row ridges covered by closely appressed scales. Distribution. Banks of streams and rocky gorges; valley of the Yadkin River, North Carolina, to northern Georgia, eastern Tennessee, central Alabama, western Louisiana, and southern Arkansas. Occasionally planted as a shade-tree in the streets of the towns of northern Geor- gia and Alabama. 10. Acer grandidentatum, Nutt. Sugar Maple. (Acer Saccharum, var. grandidentatum, Silva N. Am. xiii. 8.) Leaves cordate or truncate at the base, with broad shallow sinuses, 3-lobed, with acute or obtuse entire or slightly 3-lobed divisions, when they unfold slightly hairy on the upper and thickly coated with dense pale tomentum on the lower surface, and at maturity thick and firm, dark green and lustrous above, pale and pubescent below, especially on the stout nerves and veins, or rarely glabrous, 2'-5' in diameter, turn- ing in the autumn before falling yellow and scarlet; their petioles stout, l'-2' long, glabrous, often red after midsummer, encircling the branchlet with their large bases villose on the inner surface. Flowers appearing with the leaves on long slender drooping villose pedicels, in short-stalked corymbs; calyx campanulate, yellow, sparingly hairy, with long pale hairs, about \' long, with broad rounded lobes, often persistent under the fruit; corolla 0; stamens 7 or 8, much longer than the calyx, in the pistillate flower shorter than the calyx; ovary usually glabrous, with long spread- ing stigmatic lobes, 0 or rudimentary in the staminate flower. Fruit often rose- colored at midsummer, green at maturity, glabrous or rarely sparingly hairy, with spreading or erect wings \'-V long; seeds smooth, light red-brown, about \' long. A tree, occasionally 30°-40° high, with a trunk 8'-10' in diameter, stout usually erect branches, and slender glabrous bright red branchlets marked by numerous small pale lenticels and nearly encircled by the narrow leaf-scars, with conspicuous bands of long pale hairs in their axils. "Winter-buds acute or acuminate, about ^-^' long, bright red-brown, with puberulous-ciliate outer scales and obovate apiculate inner scales sometimes \' long when fully grown. Bark of the trunk thin, dark brown, separating on the surface into plate-like scales. Wood heavy, hard, close- grained, bright brown or nearly white, with thick sapwood. 638 TREES OF NORTH AMERICA Distribution. Banks of mountain streams usually at elevations of 5000°-6000° above the sea; rare and local; valley of the Columbia liiver in northern Montana, Wasatch Mountains of Utah, mountains of southern Arizona and New Mexico and of western Texas, and in Coahuila. ** Flowers appearing before the leaves ; fruit ripening in the spring or early summer. 11. Acer saccharinum, L. Silver Maple. Soft Maple. Leaves truncate or somewhat heart-shaped at the base, deeply 5-lobed by narrow sinuses, with acute irregularly and remotely dentate lobes, the middle lobe often 3-lobed, 6'-7' long, nearly as broad, membranaceous, bright pale green above, silvery white and at first slightly hairy below, especially in the axils of the primary veins, turning pale yellow in the autumn before falling; their petioles slender, drooping, bright red, 4'-5' long. Flo"wers greenish yellow, opening during the first warm days of the late winter or early spring long before the appearance of the leaves, on very short pedicels, in sessile axillary fascicles on shoots of the previous year, or on short ^'--y spur-like branchlets developed the year before from wood of the preceding season, the staminate and pistillate in separate clusters, sometimes on the same and some- times on different trees, and produced from clustered obtuse buds covered with thick ovate pubescent red and green scales ciliate on the margins, with a thick fringe of long rufous hairs; calyx slightly 5-lobed, more or less pubescent on the outer sur- face, long and narrow in the staminate and short and broad in the pistillate flower; corolla 0; stamens 3-7, with slender filaments, three times as long as the calyx of the staminate flower and about as long as the calyx of the pistillate flower; ovary covered, like the young fruit, with a thick coat of pubescence, rudimentary in the sterile flower; styles united at the base only, with long exserted stigmatic lobes. Fruit ripening in April and May before the appearance of the leaves, on slender drooping pedicels, 1^-2' long, glabrous, 1^' to nearly 3' long, with thin almost straight conspic- uously falcate divergent wings sometimes |' broad, prominently reticulate-veined and pale chestnut-brown; seeds ^' long, with a pale reddish brown wrinkled coat, germinating as soon as they fall to the ground, and producing plants with several pairs of leaves before the end of the summer. A tree, 90°-120° high, with a trunk 3°-4° in diameter, generally dividing 10°-15° ACERACEiE 639 from the ground into 3 or 4 stout upright secondary stems destitute of branches for a considerable length, brittle pendulous branchlets light green and covered with len- ticels when they first appear, soon becoming darker, bright chestnut-brown, smooth and lustrous in the autumn and winter of their first year, and in their second season pale rose color or gray faintly tinged with red. Winter-buds ^ iotig> with thick ovate bright red outer scales rounded on the back, minutely apiculate, and ciliate on the margins, and acute inner scales pubescent on the inner surface, becoming pale green or yellow and about 1' long. Bark of young stems and large branches smooth and gray faintly tinged with red, becoming on old trunks -^'-f ' thick, reddish brown and more or less furrowed, the surface separating into large thin scales. Wood hard, strong, close-grained, easily worked, rather brittle, pale brown, with thick sap wood of 40-50 layers of annual growth; now sometimes used for flooring and in the manufacture of furniture. Sugar is occasionally made from the sap of this tree. Distribution. Sandy banks of streams; valley of the St. John's River, New Brunswick, to southern Ontario, southward to western Florida, and westward to eastern Dakota and Nebraska, the valley of the Blue River, Kansas, and the Indian Territory; rare in the immediate neighborhood of the Atlantic coast and on the high Appalachian Mountains ; of its largest size on the banks of the lower Ohio and its tributaries. Now often cultivated with several varieties in the eastern states, and in western and northern Europe. 12. Acer rubrum, L. Red Maple. Scarlet Maple. Leaves truncate, more or less cordate by a broad shallow sinus, rounded or wedge- shaped at the base, 3-5-lobed by acute sinuses, with irregularly doubly serrate or toothed lobes, the middle lobe often longer than the others, when they unfold pubes- cent especially beneath, and at maturity light green and glabrous on the upper and white and more or less pubescent on the lower surface, particularly along the princi- pal veins, chartaceous or sometimes almost coriaceous, l^'-6' long and rather longer than broad, turning in the early autumn to brilliant shades of scarlet or scarlet and orange; their petioles slender, 2'-4' long, red or green. Flowers opening in March and April before the appearance of the leaves, bright scarlet or dull yellowish red, 640 TREES OF NORTH AMERICA on long slender pedicels, in few-flowered fascicles on branches of the previons year, from clustered obtuse buds, the staniinate and pistillate in separate clusters on the same or on different trees; sepals oblong, obtuse, as long as and broader than the oblong or linear petals; stamens 5-8, scarlet, with slender filaments exserted in the staminate and included in the pistillate flower; ovary glabrous on a narrow slightly lobed glandular disk; styles slightly united above the base, with long ex- serted stigmatic lobes. Fruit ripening in the spring or early summer on drooping stems 3'-4' long, scarlet, dark red or brown, with thin erect wings, convergent at first, divergent at maturity, |'-1' long and \'-^' wide; seeds dark red, with a rugose coat, \' long, germinating as soon as it falls to the ground. A tree, 80°-120° high, with a tall trunk 3°-4^° in diameter, upright branches usually forming a rather narrow head, and branchlets green or dark red when they first appear, becoming dark or bright red and lustrous at the end of their first sum- mer and marked by numerous longitudinal white lenticels, and gray faintly tinged with red in their second year. "Winter-buds obtuse, \' long, with thick dark red outer scales, rounded on the back and ciliate on the margins, and inner scales be- coming f -1' long, narrowly oblong, rounded at the apex and bright scarlet. Bark of young stems and of the branches smooth and light gray, becoming on old trunks \'-~^' thick, dark gray, and divided by longitudinal ridges separating on the surface into large plate-like scales. "Wood very heavy, close-grained, not strong, light brown often slightly tinged with red, with thick rather lighter colored sapwood; used in large quantities in the manufacture of chairs and other furniture, in turnery, for wooden ware and gun-stocks. Distribution. Borders of streams, low wet swamps, and rarely on hillsides; latitude 49° north in Quebec and Ontario, southward to the Indian and Caloosa rivers, Florida, and westward to western Wisconsin, western Iowa, and the valley of the Trinity River, Texas; one of the most common and generally distributed trees of eastern North America; most abundant in the south, especially in the valley of the Mississippi River, and of its largest size in the river swamps of the lower Ohio and its large tributaries; at the north often covering low wet swamps almost to the exclusion of other trees. Passing into Acer rubrum, var. Drummondii, Sarg. An inhabitant of the deep river swamps of southern Arkansas, eastern Texas, (iq"jE^ ACERACE^ 641 and western Louisiana, with leaves usually rounded or sometimes cordate at the base, 3-lobed, with short broad lobes, and covered on the lower surface like the young shoots and the petioles with thick hoary tomentum, and bright scarlet flowers and fruit. Fruit ripening late in March and April, with large convergent wings, 2'-2^' long and ^-f broad. More distinct is Acer rubrum, var. tridens, "Wood. Red Maple. Leaves obovate, usually narrowed from above the middle to the rounded or rarely cuneate base, 3-lobed at the apex, with acute or acuminate lobes, simple or furnished with short lateral secondary lobes, remotely serrate except toward the base, with incurved glandular teeth, and often ovate by the suppression of the lateral lobes and acute, thick and firm in texture, glaucous and usually pubescent or rarely tomentose below, 2'-3' long, ll'-2i' wide. Flowers sometimes tawny yellow. Fruit usually much smaller and rarely also yellow. Distribution. Southern New Jersey southward through the coast region and middle districts to southern Florida and along the Gulf coast to eastern Texas. 2. Leaves compound. 13. Acer Negundo, L. Box Elder. Ash-leaved Maple. Leaves 3-5-foliolate, with slender petioles 2'-3' in length, enlarged at the base and often furnished with a minute fringe of deciduous white hairs, and in falling leaving large conspicuous scars surrounding the stem; leaflets ovate or oval, acute, rounded or wedge-shaped at the base, coarsely and irregularly serrate above the middle, or sometimes 3-lobed, when they unfold coated below with tomentum, and at maturity smooth or more or less pubescent, membranaceous, prominently veined, bright green, paler on the under than on the upper surface, 2'-4' long, 2'-3' broad, on stout petiolules, that of the terminal leaflet often V long or twice as long as those of the smaller lateral leaflets, turning yellow in the autumn before falling. Flowers minute, apetalous, yellow-green, the staminate and pistillate on separate trees, expanding just before or with the leaves from buds developed in the axils of the last leaves of the previous year, the staminate fascicled on slender hairy pedicels l^'-2' long, the pistillate in narrow drooping racemes; calyx 5-lobed, hairy, cam- 642 TREES OF NOKTil AMERICA pauulate in the staminate flower, much smaller in the pistillate flower and divided to the base into 5 narrow sepals; corolla 0; stamens 4-G, with slender exserted hairy filaments and long linear anthers surmounted by the point of the connective, 0 in the pistillate flower; ovary on a narrow rudimentary disk, pubescent, only j)artly inclosed by the calyx; style separating from the base into 2 long stigmatic lobes. Fruit attaining its full size early in the summer, pendent on stems l'-2' long, in graceful racemes 6'-8' in length, ripening in the autumn, deciduous from the stems persistent on the branches until the following spring, l^'-2' long, with narrow acute nutlets diverging at an acute angle, and thin reticulate straight or falcate wings undulate toward the apex; seeds narrowed at the ends, smooth bright red-brown, A tree, 50°-70° high, with a trunk 2°^° in diameter, dividing near the ground into a number of stout wide-spreading branches, and slender branchlets pale green and glabrous or slightly pubescent at first, marked in their first winter by a few dark lenticels and bright green and lustrous or sometimes pale purple, with a glau- cous bloom. Winter-buds: terminal, acute, |' long, rather longer than the obtuse lateral buds, the outer scales often rudimentary and frequently coated with pale tomentum, those of the inner pairs accrescent, becoming 1' long at maturity, decidu- ous, leaving conspicuous scars visible at the base of the branchlet for two or three years. Bark of the trunk \'-^' thick, pale gray or light brown and deeply divided into broad rounded ridges separating on the surface into short thick scales. Wood light, soft, close-grained, ' not strong, creamy white, with thick hardly distinguish- able sapwood; occasionally manufactured into cheap furniture, and sometimes used for the interior finish of houses, for wooden ware, cooperage, and paper pulp. Small quantities of maple sugar are occasionally made from this tree. Distribution. Banks of streams and lakes and the borders of swamps; western Vermont and central New York, southward to northern Florida and westward to the eastern slope of the Rocky Mountains, and to Utah, New Mexico, and eastern Arizona; rare east of the Appalachian Mountains; most common in the Mississippi basin, and of its largest size in the valley of the lower Ohio River. Westward vary- ing in the pubescence of the leaves and in the number of leaflets. An extreme form is J HIPPOC AST AN ACE^ 643 Acer Negundo, var. Californicum, Sarg. Box Elder. Leaves trifoliolate, with larger more coarsely serrate and more frequently lobed leaflets densely coated at maturity on the lower surface with pale pubescence. A tree, 50°-60° high, with darker colored bark, winter-buds covered with thick tomentum, and pubescent branchlets and ripe fruit. Distribution. Valley of the lower Sacramento River and the interior valleys of the coast ranges from the Bay of San Francisco to about latitude 35^, and in high canons on the western slopes of the San Bernardino Mountains, California; connected by intermediate forms from Arizona to Texas, the Indian Territory, and Missouri, with the eastern tree. Often planted in the United States as an ornamental tree or for wind-breaks in the treeless central part of the continent, and largely, with numerous varieties, as an ornamental tree in western and northern Europe. XXXIV. HIPPOCASTANACEiE. Trees or rarely shrubs, with stout terete branchlets conspicuously marked by triangular leaf-scars, fetid bark, thick fleshy roots, and large scaly winter-buds, the outer scales sometimes coated with resin, the inner accrescent with the young shoots and often brightly colored. Leaves opposite, digitately compound, without stipules, deciduous ; leaflets 5-9, lanceolate or ovate, serrate, pinnately veined. Flowers polygamo-moncecious, showy, white, red, or pale yellow, on stout jointed pedicels from the axils of minute caducous bracts, racemose or nearly unilateral on the branches of large terminal thyrsi or panicles, appear- ing later than the leaves, only those near the base of the branches of the inflo- rescence perfect and fertile ; calyx 5 or rarely 2-lobed, the lobes imbricated in the bud, unequal ; calyx campanulate or tubular, 5-lobed, the lobes imbricated in the bud, mostly oblique or posteriorly gibbous at the base ; disk hypogynous, annular, depressed, lobed, more or less gibbous posteriorly ; petals 4 or 5, imbricated in the bud, alternate with the lobes of the calyx, deciduous, the anterior one often abortive, unguiculate, the margins of the claw commonly involute ; stamens 6S, rarely 5, generally 7, inserted on the disk, free, unequal ; filaments filiform ; anthers elliptical, gland ular-apiculate, attached on the back 644 TREES OF NORTH AMERICA below the micUUe, introrse, 2-celleil, the contiguous cells opening longitudi- nally ; ovary sessile, oblong or lanceolate, 3-celle(i, ecliinate or glal)rous, rudi- mentary in the staniiuate flower ; style slender, elongated, generally more or less curved ; stigma terminal, entire, mostly acute ; ovules 2 in each cell, borne on the middle of its inner angle, amphitropous, the u})per ascending, the micro- pyle inferior, the lower pendulous, the micropyle superior. Fruit an echinate roughened or smooth coriaceous capsule, 3-celled and loculicidally 3-valved, the cells 1-seeded by abortion, often by suppression 1 or 2-celled, and then 1 or 2-seeded, the renmants of the abortive cells and seeds commonly visible at its maturity. Seeds without albumen, round when one is developed, or, when more than one, flattened by mutual pressure ; seed-coat coriaceous, chest- nut-brown, smooth and shiny, with a broad opaque light-colored hilum ; em- bryo filling the cavity of the seed ; cotyledons very thick and fleshy, often conferruminate, unequal, incurved on the short conical radicle, remaining under ground in germination ; plumule conspicuously 2-leaved. The Horsechestnut family is composed of the widely distributed genus -^s- culus and of Billia, Peyr., a genus of two species of Mexican and Central American trees, differing from tEscuIus in its 3-foliolate leaves. 1. iESCULUS, L. Characters of the family. ^sculus with ten or eleven species is represented in the floras of the three conti- nents of the northern hemisphere. It produces soft straight-grained light-colored wood and bitter and astringent bark. The seeds contain a bitter principle, sesculin. jEsculus Hippocastanum, L., of the mountains of Greece, the common Horsechestnut of gardens, is largely planted as an ornamental tree in all countries with temperate climates, and now occasionally grows spontaneously in the eastern states. The generic name is the classical name of an Oak-tree. CONSPECTUS OF THE ARBORESCENT SPECIES OF NORTH AMERICA. Winter-biids without resinous coating. Calyx campanulate ; leaflets mostly glabrous below. Petals nearly equal, shorter than the stamens ; fruit tuberculate. 1. iE. glabra (A, C). Petals unequal, longer than the stamens ; fruit smooth. 2. 2E. octandra (A, C). Calyx tubular ; leaflets tomentulose below ; petals unequal, shorter than the stamens ; fruit smooth. 3. iE. austrina (C). Winter-buds resinous. Calyx 2-lobed; petals nearly equal, much shorter than the stamens; fruit smooth. 4. iE. Californica (G). 1. ^sculus glabra, Willd. Ohio Buckeye. Fetid Buckeye. Leaves with slender petioles 4'-6' long, enlarged at the ends and often furnished on the upper side with clusters of dark brown chaff-like scales surrounding the base of the petiolules, and 5-7, usually 5, oval oblong or obovate acuminate leaflets grad- ually narrowed to the elongated entire base, finely and unequally serrate above, at first sessile, becoming slightly petiolulate at maturity, covered on tho lower surface like the petioles when they first appear with short soft deciduous pubescence, and at maturity glabrous with the exception of a few hairs along the under side of the con- spicuous yellow midribs and in the axils of the principal veins, yellow-green, paler HIPPOCASTANACE^ 645 on the lower than on the upper surface, 4'-6' long and 1^-2^' wide, turning yellow in the autumn before falling. Flowers pale yellow-green, mostly unilateral, ^'-V long or more than twice as long as the pedicels, appearing in April and May in clusters 5'-6' long, 2'-3' wide, and more or less densely covered with pubescence, wit^i short usually 4-6-flowered branches; calyx campanulate; petals nearly equal, puber- ulous, the thin limb about twice as long as the claw, in the lateral pair broadly ovate or oblong, and in the superior oblong-spatulate, much narrower, sometimes marked with red stripes; stamens usually 7, with long exserted curved pubescent filaments and orange-colored slightly hairy anthers; ovary pubescent, covered with long slen- der deciduous prickles thickened and tubercle-like at the base. Fruit on a stout stem I'-l' long, ovate or irregularly obovate, pale brown, l'-2' long, with thin or some- times thick valves, roughened by the enlarged persistent prickles of the ovary; seeds I'-l^' broad. A tree, occasionally 70° high, with a trunk rarely 2° in diameter, small spreading branches, and branchlets orange-brown and covered at first with short fine pubes- cence; soon glabrous, reddish brown, and marked by scattered orange-colored lenti- cels, usually much smaller, and rarely more than 30° high. Winter-buds |' long, acuminate, with thin nearly triangular pale brown scales, the outer bright red on the inner surface toward the base, the inner pair strap-shaped, prominently keeled on the back, minutely apiculate and slightly ciliate along the margins, and at maturity lV-2' long and bright yellow. Bark of young stems and of the branches dark brown and scaly, becoming on old trees |' thick, ashy gray, densely furrowed, and brokeu into thick plates roughened on the surface by numerous small scales. Wood light soft, close-grained, not strong, often blemished by dark lines of decay, nearly white, with thin dark-colored sapwood of 10-12 layers of annual growth ; used in the manu- facture of artificial limbs, wooden ware, wooden hats, and paper pulp; occasionally sawed into lumber. An extract of the bark has been used as an irritant of the cere- bro-spinal system. Distribution. Kiver-bottoms and the banks of streams in rich moist soil; western slopes of the Alleghany Mountains, Pennsylvania, to northern Alabama, and west- ward to southern Iowa, central Kansas, the Indian Territory, southern Nebraska, and eastern Kansas; nowhere abundant; most common and of its largest size in the valley of the Tennessee River in Tennessee and northern Alabama. A form (var. 646 TKEES OF NORTH AMERICA Buckleyi, Sarg.) with 6-7-foliolate leaves and narrower lanceolate more acuminate and usually more sharply and doubly serrate leaflets, ranges from Iowa to Kansas and eastern Texas. Occasionally cultivated as an ornamental plant in the eastern United States and in Europe, and hardy as far north as Massachusetts. 2. -ZEsculus octaiidra. Marsh. Sweet Buckeye. Leaves with slender glabrous or slightly pubescent petioles 4'-6' long, and 5-7 elliptical or obovate-oblong leaflets, sharply and equally serrate, short-petiolulate, glabrous above except on the midribs and veins, sometimes clothed with reddish brown pubescence, when they unfold more or less canescent-pubescent on the lower surface, becoming glabrous at maturity with the exception of a few hairs along the midribs and in the axils of the principal veins, dark yellow-green, duller on the lower than on th§ upper surface, 4'-6' long, 1^'-21' wide, turning yellow in the au- tumn before falling. Flowers opening in early spring when the leaves are about half grown, V-l\' long, pale or dark yellow, on short pedicels mostly unilateral on the branches of the pubescent clusters 5'-7' in length ; calyx campanulate, sparingly villose; petals connivent, very unequal, puberulent, the claws villose within, limb of the superior pair spatulate, minute, the long claws exceeding the lobes of the calyx, those of the lateral pair obovate or nearly round and subcordate at the base; sta- mens usually 7, rather shorter than the petals, with straight or inclining subulate villous filaments; ovary pubescent. Fruit 2'-3' long, generally 2-seeded, with thin smooth or slightly pitted pale brown valves; seeds 1^' to nearly 2^ wide. A tree, sometimes 90° high, with a tall straight trunk 2i°-3° in diameter, small rather pendulous branches, and glabrous or nearly glabrous branchlets orange-brown when they first appear, becoming in their second year pale brown and marked by numerous irregularly developed lenticels; or toward the southern and southwestern limits of its range a low shrub. Winter-buds |' long, rather obtuse, with broadly ovate pale brown outer scales rounded on the back, minutely apiculate, ciliate, with- out resin, and slightly covered with a glaucous bloom, the inner scales becoming sometimes 2' long, bright yellow or occasionally scarlet. Bark of the trunk about 1^' thick, dark brown, divided by shallow fissures and separating on the surface into small thin scales. Wood light, soft, close-grained, difficult to split, creamy niPPOCASTANACE^ 647 white, with thick hr^rdly distinguishable sapwood; used in the manufacture of arti- ficial limbs, for woodeu ware, wooden hats, paper pulp, and occasionally sawed into lumber. Distribution. Rich soil of river-bottoms and moist mountain slopes, Allegheny Couuty, Penusylvania, and southward along the mountains to the neighborhood of Auo-usta, Georgia, and northern Alabama, and westward to southern Iowa, the In- dian Territory, and western Texas; most common and of its largest size on the high mountains of Tennessee and North Carolina. A form (var. hyhrida, Sarg.) with purple or red flowers and leaves clothed on the under surface, like the petioles and inflorescence, with dense pale pubescence, and with lighter colored bark, is not rare on the Alleghany lM,ountains from West Virginia southward. Often cultivated in western and central Europe and in the eastern United States, especially the form with red flowers, as an ornament of parks and gardens. 3. ^sculus austrina. Small. Buckeye. Leaves with slender grooved villose or pubescent usually ultimately glabrous peti- oles 3'-5' long, and usually 5 oblong-obovate or elliptical acuminate leaflets, gradually narrowed from near the middle and acute at the entire base, finely or coarsely and sometimes doubly crenulate-serrate above, dark green, lustrous and glabrous except along the slender yellow midribs and veins on the upper surface, lighter colored and tomentulose on the lower surface, nearly sessile or petiolulate, 4'-5' long, l^'-2' wide. Flowers opening from the first to the middle of April, bright red, usually f'-l' long, on slender pubescent pedicels much thickened on the fruit, sometimes \' long, and mostly aggregated toward the ends of the short branches of the narrow pubes- cent inflorescence 6' -8' in length; calyx tubular, short and broad or elongated, pu- berulous on the outer surface, tomentose on the inner surface, with rounded lobes; petals shorter than the stamens, connivent, unequal, oblong-obovate, rounded at the apex, puberulous on the outer surface and glandular, with minute dark glands, those of the superior pair about half as wide as those of the lateral pair, with claws much longer than the calyx; filaments and ovary villose. Fruit ripening and falling in October, usually only a few fruits maturing on a cluster, generally pear-shaped or occasionally subglobose, mostly 2-seeded, l^'-2^' long, with very thin pale brown 648 TREES OF NORTH AMERICA slightly pitted valves; seeds light yellow-brown, sometimes 1^' in diameter, with a comparatively small liilum and a thin shell. A tree, occasionally 25°-30° high, with a straight trunk 5'-G' in diameter, stout branches forming a narrow symmetrical head, and slender brancidets marked by numerous small pale lenticels, green and puberulous at first, becoming gray slightly tinged with red during their first winter and only slightly darker in their second year; or often a shrub. Winter-buds broadly ovate, obtusely pointed, about \' long, with ovate rounded apiculate light red-brown outer scales. Bark thin, smooth, and pale. Distribution. Rich upland woods; neighborhood of Memphis, Tennessee, and southern Missouri to eastern Texas and northwestern Alabama^ 4. ^sculus Californica, Nutt. Buckeye. Leaves with slender grooved petioles 3'-4:' long, and 4-7 usually 5 oblong-lanceo- late acute leaflets narrowed and obtuse or somewhat rounded at the base, sharply serrate, 4'-6' long, l^'-2' wide, dark green above, paler below, slightly pubescent at first, becoming glabrous or nearly so, their petiolules ^'-1' long, falling early, ofte by midsummer. Flowers white or pale rose color, I'-l^' long, appearing from May to July when the leaves are fully grown, on short pedicels mostly unilateral on the long branches of the densely flowered long-stemmed pubescent cluster 3'-6' in length; calyx 2-lobed, slightly toothed, much shorter than the narrow oblong petals; stamens 5-7, with long erect exserted slender filaments and bright orange-colored anthers; ovary densely pubescent. Fruit obovate, often somewhat gibbous on the outer side, with thin smooth pale brown valves, usually 1-seeded, 2'-3' long, on a slender stalk ^'— |' in length; seeds l^'-2' broad. A tree, rarely 30°-40° high, with a short trunk 2°-3° in diameter, often much enlarged at the base, stout wide-spreading branches, and branchlets glabrous and pale reddish brown when they first appear, becoming darker in their second season; more often a shrub, with spreading stems 10°-15° high forming broad dense thickets. Winter-buds acute, covered with narrow dark brown scales rounded on the back and thickly coated with resin. Bark of the trunk about l' thick, smooth, and light gray or nearly white. Wood soft, light, very close-grained, v/hite or faintly tinged with yellow, with thin hardly distinguishable sapwood of 10-12 layers of annual growth. i SAPINDACE^ 649 Distribution. Borders of streams; valley of the upper Sacramento River, Men- doeiiio County, California, southward along the coast ranges to San Luis Obispo County, and on the western foothills of the Sierra Nevada to the northern slopes of the Tejon Pass, and in Antelope Valley, Los Angeles County; of its largest size in the canons of the coast ranges north of San Francisco Bay. Occasionally cultivated as an ornamental plant in western and southern Europe. XXXV. SAPINDACEiE. Trees or shrubs, with alternate pinnate petiolate persistent or deciduous leaves without stipules. Flowers regular or irregular, polygamo-dioecious, poly- gamo-monoecious or polygamous ; calyx of 4 or 5 sepals or lobes, imbricated in the bud ; petals 4 or 5, imbricated in the bud; disk annular, fleshy, 5-lobed, or unilateral and oblique ; stamens usually 7-10, inserted on the disk ; filaments free ; anthers introrse, 2-celled, the cells opening longitudinally ; ovary 2-4 or 3-celled ; styles terminal ; stigmas capitate or lobed ; ovule solitary or 2 in each cell, anatropous or amphitropous. Fruit a drupe or capsule. Seed usually soli- tary, without albumen ; seed-coat bony, coriaceous or crustaceous. Of the one hundred and eighteen genera of this family, which is chiefly con- fined to the tropics and is more abundant in the Old than in the New World, four have arborescent representatives in the United StateSo CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES. Fruit baccate. Fruit dark orange-color or yellow, with thin semitranslucent coriaceous flesh ; ovules 1 in each cell of the ovary ; leaflets subcoriaceous to coriaceous. 1. Sapiudus. Fruit purple, with thick juicy flesh ; ovules 2 in each cell of the ovary ; leaflets mem- branaceous, persistent. 2. Exothea. Fruit a drupe ; leaves 3-foliolate, persistent, 3. Hypelate. Fruit a 3-valved capsule ; leaves 4- or 5-, rarely 3-foliolate, deciduous. 4. Ungnadia. 1. SAPINDUS, L. Trees or shrubs, with terete branches without terminal buds, marked by large obcordate leaf-scars, showing the ends of 3 equidistant fibro-vascular bundles, small globose axillary buds often superposed in pairs, the upper bud the larger, and thick fleshy roots. Leaves equally or rarely unequally pinnate, persistent. Flowers regular, minute, polygamo-dicecious, on short pedicels from the axils of minute de- ciduous bracts, in ample axillary or terminal panicles ; sepals 4 or 5, unequal, slightly united at the base; petals 4 or 5, equal, alternate with the sepals, inserted under the thick edge of the annular fleshy entire crenately lobed disk, unguiculate, naked or furnished at the summit of the claw on the inside with a 2-cleft scale, deciduous; stamens usually 8 or 10, inserted on the disk immediately under the ovary, equal; filaments subulate or filiform, often pilose, exserted in the staminate, much shorter in the pistillate flower; anthers oblong, attached near the base; pistils 2 or 3, united; ovary sessile, entire or 2-4-lobed, 2-4-celled, narrowed into a short columnar style, rudimentary in the staminate flower; stigma 2-4-lobed, the lobes spreading; ovule solitary in each cell, ascending from below the inner angle of the cell; raphe ventral; micropyle inferior. Fruit baccate, coriaceous, 1-3-seeded, usually formed of 1 glo- bose coriaceous carpel, with the rudiments of the others remaining at its base, or of 2 or sometimes 3 carpels more or less connate by their bases and then 2-3-lobed: 650 TREES OF NORTH AMERICA Seed solitary in each carpel, obovate or globose; seed-coat bony, smooth, black or dark brown; tegmen membranaceous or fleshy; hilum oblong, surrounded by an ariloid tuft of long pale silky hairs; embryo incurved or straight; cotyledons thick and fleshy, incumbent; radicle very short, inferior, near the hilum. Sapindus is widely distributed through the tropics, especially in Asia, occasionally extending into colder regions. About forty species have been distinguished; of these three are found within the territory of the United States. Sapindus contains a detersive principle which causes the pulp of the fruit to lather in water, and makes it valuable as a substitute for soap. The bark, which is bitter and astringent, has been used as a tonic. The seeds of several of the species are strung for chaplets and bracelets and are used as buttons. The generic name, from sapo and Indus, refers to the detersive properties and use of the first species known to Europeans, a native of the West Indies. CONSPECTUS OF THE SPECIES OF THE UNUSED STATES. Leaves persistent. Rachis of the leaf interruptedly winged, with usually broad wings ; leaflets 4-9, oblong- lanceolate and acute to elliptical-ovate or oblong, tomentulose below ; petals without scales; fruit globose, orange-brown. 1. S. Saponaria (D). Rachis of the leaf without wings, narrowly margined or marginless ; leaflets 7-13, lanceo- late-oblong, acuminate, often somewhat falcate, glabrous below ; petals with scales ; fruit somewhat oblong, dorsally keeled, yellow. 2. S. marginatus (C). Leaves deciduous, their rachises without marginal borders ; leaflets 8-19, lanceolate, mostly falcate, soft-pubescent or ultimately glabrous below ; petals with scales ; fruit globose, not keeled, turning black in drying. 3. S. Drummondi (C, E). 1. Sapindus Saponaria, L. Soapberry. Leaves 6'-7' long, with broadly winged rachises, their wings narrow and often nearly obsolete below the lowest pair of leaflets, and sometimes nearly y wide below the upper pair, and usually 6-9 leaflets gradually narrowed at the base, very short- petiolulate, when they unfold glabrous on the upper surface with the exception of a few hairs on the midveins, softly pubescent on the lower surface, and at maturity rather coriaceous, yellow-green, paler and tomentulose below, prominently reticu- late-venulose, 3'-4' long and 1\' wide, with yellow midribs and primary veins, those of i SAPINDACE^ 651 the lowest pair smaller than the others; rarely reduced to a single leaflet. Flo"wers usually produced 3 together on short pedicels, in terminal panicles 7-10' in length, with angulate peduncles and branches, appearing in Florida in November ; calyx- lobes rounded, concave, ciliate on the margins, the 2 outer rather smaller than those of the inner rank; petals without scales, white, ovate, short-clawed, rounded at the apex and covered, especially toward their base, with long scattered hairs; stamens included or slightly exserted, with hairy filaments broadened at the base. Fruit ripening in spring or in early summer, globose, |'— |' in diameter, with thin orange- brown semitranslucent flesh; seeds obovate, black, ^' in diameter. A tree, sometimes 25°-30° high, with a trunk rarely exceeding 10'-12' in diameter, erect branches and slender branchlets at first slightly many-angled and puberulous, soon glabrous, orange-green and marked by white lenticels, becoming in their second season terete, pale brown faintly tinged with red. Bark of the trunk i'-^' thick, light gray and roughened by oblong lighter colored excrescences, the outer layer ex- foliating in large flakes exposing the nearly black inner bark. Wood heavy, rather hard, close-grained, light brown tinged- with yellow, with thick yellow sapwood. Distribution. Southern Florida, shores of Cape Sable, shores and islands of Caximbas Bay, Key Largo, Elliott's Key, and the shores of Bay Biscay ne; in Florida most common on Cape Sable, and of its largest size on some of the Thousand Islands; generally distributed through the West Indies to Venezuela. 2. Sapindus marginatus, "Willd. Soapberry. Leaves 6'-7' long, with slender wingless or narrowly margined or marginless rachises, and 7-13 lance-oblong acuminate more or less falcate leaflets, glabrous, dark green, and lustrous on the upper, paler and glabrous or puberulous on the fiq'jrji lower surface along the slender midnerves, sessile or very short-petiolulate, 2'-5' long, f -1^ wide, the lower usually alternate, the upper opposite. Flowers more or less tinged with red and nearly \' in diameter, on short stout tomentose pedicels, appearing in early spring in panicles 4' -5' long and usually about 3' wide, with vil- lose stems and branches; sepals rounded at the apex, villose on the outer surface toward the base, ciliate on the margins, the outer much narrower than the inner; petals ovate-oblong, short-clawed, ciliate, furnished on the inner surface near the 652 TREES OF NORTH AMERICA base with a 2-lobed villose scale. Fruit conspicuously keeled ou the back, short- oblong, about I' long, with thin light yellow translucent tlesh; seeds obovate, dark brown, A tree, rarely more than 25°-30° high, with a trunk sometimes 1° in diameter, and stout pale brown or ultimately ashy gray branchlets. Distribution. Coast of Florida from the mouth of the St. John River and Cedar Keys southward; rare and still imperfectly known. 3. Sapindus Drummondi, Hook. & Arn. Soapberry. Wild China-tree. Leaves appearing in March and April, with slender grooved puberulous rachises, without wings, and 4-9 pairs of alternate obliquely lanceolate acuminate leaflets, /^JJ^ glabrous on the upper and covered with short pale pubescence on the lower surface, rather coriaceous, prominently reticulate-venulose, pale yellow-green, 2'-3' long, ^'-|' wide, short-petiolulate, deciduous in the autumn or early winter. Flo"wers appearing in May and June in clusters 6'-9' long and 5'-6' wide, with pubescent many-angled stems and branches; sepals acute and concave, ciliate on the margins, much shorter than the white obovate petals rounded at the apex, contracted into long claws, hairy on the inner surface and furnished at the base with a deeply cleft scale hairy on the margins; filaments hairy, with long soft hairs. Fruit ripening in September and October, persistent on the branches until the following spring, gla- brous, not keeled, yellow, ^' in diameter, turning black in drying; seeds obovate, dark brown. A tree, 40°-50° high, with a trunk sometimes ll°-2° in diameter, usually erect branches and branchlets at first slightly many-angled, pale yellow-green, pubescent, becoming in their second year terete, pale gray, slightly puberulous, and marked by numerous small lenticels. Bark of the trunk ^'—^' thick, separating by deep fissures into long narrow plates broken on the surface into small red-brown scales. Wood heavy, strong, close-grained, light brown tinged with yellow, with lighter colored sap wood of about 30 layers of annual growth; splitting easily into thin strips and largely used in the manufacture of baskets used in harvesting cotton, and for the frames of pack-saddles. Distribution. Moist claj'^ soil or dry limestone uplands; western Louisiana to the SAPINDACE^ 653 valley of the Washita River, Arkansas, and southern Kansas, and through Texas to the mountain valleys of southern Xew Mexico, southern Arizona, and northern Mexico. 2. EXOTHEA, Macf. A tree, with thin scaly bark, and terete branchlets covered with lenticels. Leaves petiolate, abruptly pinnate or 3- or rarely 1-foliolate, glabrous, without stipules, per- sistent; leaflets oblong or oblong-ovate, acute, rounded or emargiuate at the apex, with entire undulate margins, obscurely veined, membranaceous, dark green and lustrous on the upper and slightly paler on the lower surface. Flowers regular, polygamo-dicecious, on short pedicels from the axils of minute deciduous bracts cov- ered with thick pale tomentum, in ample terminal or axillary wide-branched panicles clothed with orange-colored pubescence; sepals 5, ovate, rounded at the apex, ciliate on the margins, puberulous, persistent; petals 5, white, ovate, rounded at the apex, shortly unguiculate, alternate with and rather longer and narrower than the sepals; disk annular, fleshy, irregularly 5-lobed, puberulous; stamens 7 or 8, inserted on the disk, as long as the petals in the staminate flower, much shorter in the pistillate flower; filaments filiform, glabrous, anthers oblong, with a broad connective, rudi- mentary in the staminate flower; ovary sessile on the disk, conical, pubescent, 2-celled, contracted into a short thick style, rudimentary in the staminate flower, stigma large, declinate, obtuse; ovules 2 in each cell, suspended from the sum- mit of the inner angle, collateral, anatropous, raphe ventral; micropyle superior. Fruit a nearly spherical 1-seeded berry containing the riidiment of the second cell and tipped with the short remnant of the style, surrounded at the base by the per- sistent reflexed sepals; flesh becoming thick, dark purple, and juicy at maturity. Seed oblong, short to subglobose, solitary, suspended; seed-coat thin, coriaceous, orange-brown, and lustrous; embryo subglobose, filling the cavitv of the seed;;, coty- ledons fleshy, plano-convex, puberulous; radicle superior, very short, uncinate, turned toward the small hilum and inclosed in a lateral cavity of the seed-coat. The genvis is represented by a single West Indian species. The generic name is from i^wdea, in allusion to its removal from a related genus. 1. Exothea paniculata, Radlk. Iron-wood. Ink Wood. Leaves appearing in April on stout grooved petioles ^-1' long ; leaflets 4'-5' 654 TREES OF NORTH AMERICA long and l^'-2' wide. Flowers opening in Florida in April, y across when ex- panded, tlie staminate and pistillate on separate plants. Fruit fully grown by the end of June and then ^'-|' long, dull orange color, remaining on the branches dur- ing the sunnner, ripening in the autumn, and becoming juicy and dark purple at maturity; seeds ^'-f in diameter. A tree, sometimes 40°-50° high, with a trunk 12'-15' in diameter, slender upright branchlets orange-brown when they first appear, becoming reddish brown in their second year and thickly covered by small white lenticels. Bark of the trunk ^'-\' thick, the bright red surface separating into large scales. Wood very hard and ■heavy, strong, close-grained, bright red-brown, with lighter colored sapwood of 10-12 layers of annual growth; valued for piles and also used in Florida in boatbuilding, for the handles of tools, and many small articles. 3. HYPELATE, P. Br. A glabrous tree or shrub, with smooth bark and slender terete branchlets. Leaves long-petioled, the petioles sometimes narrow-winged, 3-foliolate, the terminal leaflet rather larger than the others, persistent; leaflets sessile, obovate, rounded or rarely acute or emarginate at the apex, entire, with thickened revolute margins and promi- lient midribs, coriaceous, feather-veined, the veins arcuate and connected near the margins, dark green and lustrous on the upper, bright green on the lower surface. Flowers regular, polygamo-moncecious, minute, on slender pedicels from the axils of minute deciduous bracts, in few-flowered long-stemmed wide-branched terminal or axillary panicles; calyx 5-lobed, the lobes ovate, rounded at the apex, slightly puber- ulous on the outer surface, ciliate on the margins, deciduous by a circumcissile line, petals 5, rather longer than the calyx-lobes, rounded, spreading, ciliate on the mar- gins, white; stamens 7 or 8, inserted on the lobes of the annular fleshy disk; fila- ments filiform, as long as the petals in the staminate flower, much shorter in the pistillate flower; anthers oblong, attached on the back near the bottom, the cells spreading from above downward; ovary sessile on the disk, slightly 3-lobed, 3-celled, contracted into a short stout style, rudimentary in the staminate flower; stigma large, declinate, obscurely 3-lobed; ovules 2 in each cell, borne on the middle of its inner angle, superposed, amphitropous, the upper ascending, with the micropyle in- ferior, the lower pendulous, with the micropyle superior. Fruit an ovate black drupe crowned with the remnants of the persistent style and supported on the persistent base of the disk; flesh thin and fleshy; walls of the stone thick and crustaceous. Seed solitary by the abortion of the upper ovule, suspended, obovate; seed-coat thin, slightly wrinkled; embryo conduplicate, filling the cavity of the seed; cotyledons thin, foliaceous, irregularly folded, incumbent on the long radicle. The genus with a single species is distributed from southern Florida to Cuba and Jamaica. Hypelate is the ancient name of the Butcher's Broom. 1. Hypelate trifoliata, Sw. White Ironwood. Leaves unfolding in June and persistent until their second season or longer; petioles stout, 1^-2' long, with narrow green wings; leaflets l^'-2' long, and f'-l^ wide. Flowers appearing in Florida in June, rather less than \' in diameter, in few- flowered panicles 3'-4' in length, on slender peduncles, the staminate and pistillate in separate panicles on the same tree. Fruit ripening in September, |' long, with a sweet rather agreeable flavor. SAPINDACEiE 655 A tree, sometimes 35°-40° high, with a trunk occasionally 18'-20' in diameter, and branchlets pale green when they first appear, becoming gray during their first season and bright red-brown the following year; generally much smaller. Bark of the trunk rarely ^' thick, marked by shallow depressions and numerous minute lenticels. Wood very heavy, hard, close-grained, rich dark brown, with thin darker colored sapwood of 4 or 5 layers of annual growth; very durable in contact with the soil and valued in Florida for posts; also used in shipbuilding and for the handles of tools. Distribution. Upper Metacombe and Umbrella Keys, Florida; rare ; in Cuba and Jamaica. 4. UNGNADIA, Endl. A tree or shrub, with thin pale gray fissured bark, slender terete slightly zigzag branchlets without terminal buds, marked by large conspicuous obcordate leaf-scars, small obtuse nearly globose axillary winter-buds covered with numerous chestnut- brown imbricated scales, and thick fleshy roots. Leaves long-petioled, 5 or 7 or rarely 3-foliolate, deciduous; leaflets ovate-lanceolate, acuminate, rounded or wedge-shaped, and often oblique at the base, irregularly crenulate-serrate, coated at first on the lower surface like the petioles with dense pale tomentum, pilose above, glabrous at maturity with the exception of a few hairs on the lower surface along the principal veins, pinnately veined, reticulate-venulose, the terminal one long- petiolulate, the others short-petiolulate to subsessile. Flowers irregular, polyga- mous, in small pubescent fascicles or corymbs appearing just before or with the leaves from the axils of those of the previous year, usually from separate buds, or occasionally from the base of leafy branches; calyx 5-lobed, hypogynous, oblong-lan- ceolate, somewhat united irregularly at the base only, deciduous; petals 4 by the suppression of the anterior one, or 5 and then alternate with the lobes of the calyx, hypogynous on the margin of a thickened truncate torus, unguiculate, bright rose color, deciduous, the claw as long as the lobes of the calyx, nearly erect, clothed with tomentum, especially on the inner surface, conspicuously appendaged at the summit with a fimbricated crest of short fleshy tufted hairs, the blade obovate, spread- ing, often erose-crenulate ; disk unilateral, oblique, tongue-shaped, surrounding and connate with the base of the stipe of the ovary; stamens 7-10, usually 8 or 9, inserted on the oblique edge of the disk, much exserted and unequal, the anterior ones shorter 656 TREES OF NORTH AMERICA than the others^, equal or almost so and shorter than the petals in the pistillate flower; filaments filiform; anthers oblong, attached near the base; ovary ovoid, 3-celled, pilose, raised on a long stipe, rudimentary in the staminate flower; style subulate, fili- form, elongated, slightly curved upward; stigma minute, terminal; ovules 2, borne on the inner angle of the cell near its niiddle, ascending, the micropyle inferior. Fruit a coriaceous 3-celled loculicidally 3-valved broadly ovate capsule, conspicuously stipi- tate, crowned with the remnants of the style, rugosely roughened and dark reddish brown, loculicidally 3-valved, the valves somewhat cordate, bearing the dissepiment on the middle. Seed generally solitary by abortion, almost globose; seed-coat coriaceous, very smooth and shining, dark chestnut-brown or almost black; hilum broad; tegmen thin; embryo filling the cavity of the seed; cotyledons thick and fleshy, nearly hemi- spherical, conferruminate, incumbent on the short conical descending radicle turned toward the hilum, remaining below ground in germination. Ungnadia with a single species is confined to Texas, New Mexico, and northern Mexico. The name is in honor of Baron Ferdinand von Ungnad, Ambassador of the Em- peror Rudolph 11. at the Ottoman Porte who sent seeds of the Horsechestnut-tree from Constantinople to Vienna in the middle of the sixteenth century. 1. Ungnadia speciosa, Endl. Spanish Buckeye. Leaves appearing from March to April with or just after the flowers, 6'-12' long, with stout petioles 2'-6' long, rather coriaceous leaflets, dark green and lustrous on the upper and pale and rugose on the lower surface, 3'-5' long and 1^-^' wide, the terminal leaflet on a petiolule ^-1' long. Flovrers 1' across when expanded, in crowded clusters l^'-2' long. Fruit 2' broad, opening in October, the empty pods often remaining on the branches until the appearance of the flowers the following year; seeds ^'— |' in diameter. A tree, occasionally 25°-30° high, with a trunk C'-8' in diameter, dividing at some distance from the ground into a number of small upright branches, and branchlets light* orange-brown and covered during their first season with short fine pubescence, pale brown tinged with red, glabrous and marked by scattered lenticels in their second year; more often a shrub, with numerous stems. Winter-buds about i' in diameter. Bark of the trunk rarely more than -|' thick, light gray and broken by RHAMNACE^ 657 numerous shallow reticulated fissures. Wood heavy, close-grained, rather soft and brittle, red tinged with brown, with lighter colored sapwood. The sweet seeds pos- sess powerful emetic properties and are reputed to be poisonous. Distribution. Borders of streams, limestone hills, and westward on the sides of mountain canons; valley of the Trinity River, Texas, to the Oran Mountains, New Mexico, and southward into Mexico; most common and of its largest size forty to fifty miles from the Texas coast west of the Colorado River. Occasionally cultivated as an ornamental plant in the southern United States. XXXVI. RHAMNACEiE. Trees or shrubs, with scaly or naked buds, watery bitter astringent juice, simple leaves, and minute deciduous stipules {persistent in Krugiodendron) . Flowers small, mostly greenish, perfect (polgyamo-dioecious in one species of RhaTimus) ; calyx 4-5-lobed, the lobes valvate in the bud ; petals 4-5, inserted <3n the calyx near the margin of the conspicuous disk lining the short calyx- tube, and infolding the stamens, or 0 ; stamens as many as and alternate with the calyx-lobes, free, inserted at or below the margins of the disk ; filaments slender, subulate; anthers introrse, versatile, 2-celled, the cells opening longitudinally; pistils of 2-3 united carpels; ovary 2-3, or rarely 1-celled by abortion, partly immersed in the disk; style terminal; stigma 2-4-lobed; ovules 1 in each cell, erect, anatropous; raphe ventral ; micropyle inferior. Fruit drupaceous, sup- ported on the tube of the calyx and bearing the remnants of the style. Seed usually with scanty oily albumen; embryo with broad cotyledons; radicle in- ferior, next the hilum. CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES. Fruit more or less fleshy. Fruit with a single stone ; petals 0. Sepals without crests. Leaves alternate ; branches spinescent. 1. Condalia. Leaves nearly opposite ; branches not spinescent. 2. Reynosia. Sepals crested ; leaves mostly opposite. 3. Krugiodendron. Fruit with 2 or 3 nutlets ; petals 4 or 5, or 0 ; leaves alternate. 4. Rhamnus. Fruit crustaceous, 3-lobed, separating- into 3 longitudinally 2-valved nutlets. Sepals inflexed ; petals narrowed into long- slender claws. 5. Ceanothus. Sepals spreading ; petals sessile. 6. Colubrina. 1. CONDALIA, Cav. Trees or shrubs, with ligid spinescent branches and minute scaly buds. Leaves alternate, subsessile, obovate or oblong, entire, feather-veined. Flowers axillary, solitary or fascicled, greenish white, on short pedicels; calyx with a short broadly obconical tube and o-lobed limb, the lobes ovate, acute, membranaceous, spreading and persistent; disk fleshy, flat, slightly 5-angled, surrounding the free base of the ovary; petals 0; stamens 5, inserted on the free margin of the disk between the lobes of the calyx; filaments incurved, shorter than the calyx-lobes; 1-celled, conical, grad- ually narrowed into a short thick style; stigma 3-lobed; ovule ascending from the base of the cell. Fruit ovoid or subglobose; flesh thin; stone thick-walled, crustaceous. Seed compressed; seed-coat thin and smooth; cotyledons oval, flat. Condalia with nine or ten species is confined to the New World and is distributed 658 TREES OF NORTH AMERICA from western Texas and southern California to Patagonia and Brazil. Of the six species found within the territory of the United States one is a small tree. The generic name commemorates that of Antonio Condal, a Spanish physician of the eighteenth century sent to South America on a scientific mission in 1754. 1. Condalia obovata, Hook. Purple Haw. Log Wood. Leaves often fascicled on short spinescent lateral branchlets, spatulate to oblong- cuneate, mucronate, pubescent, especially on the lower surface, when they first appear, at maturity glabrous, rather thin, pale yellow-green, I'-l^ long, and about |' wide, with conspicuous midribs and usually 3 pairs of prominent primary veins, unfold- ing in May and June and falling irregularly during the winter. Flovrers in 2-4- flowered short-stemmed fascicles, on branchlets of the year. Fruit ripening irregu- larly during the summer, ^' long, dark blue or black, with a sweet pleasant flavor. A tree, sometimes 30° high, with a trmik 6'-8' in diameter, erect rigid zigzag branchlets terminating in stout spines and covered at first with soft velvety pubes- cence, becoming glabrous before the end of the first season, pale red-brown and often covered with thin scales; more often a shrub. Bark of the trunk about |' thick, divided into flat shallow ridges, the dark brown surface tinged with red sep- arating into thin scales. Wood very heavy, hard, close-grained, light red, with light yellow sapwood of 7-8 layers of annual growth; burning with an intense heat and valued as fuel. Distribution. Western Texas from the shores of Matagorda Bay to the Rio Grande, and through the drier portions of northern Mexico; of tree-like habit and of its largest size on the high sandy banks of the lower Rio Grande and its tributaries; often covering large areas with dense impenetrable chapparal. 2. REYNOSIA, Griseb. Trees or shrubs, with rigid unarmed terete branches, and scaly buds. Leaves mostly opposite, entire, coriaceous, short-petiolate, reticulate-veined, persistent. Flowers minute, on stout pedicels bibracteate near the base and two or three times longer than the flower, in small axillary sessile umbels; calyx persistent, 5-lobed, the lobes deltoid, acuminate, spreading, petaloid, deciduous; disk fleshy; petals 0; RHAMNACE^ 659 stamens 5, inserted on the margin of the disk, rather shorter than the calyx-lobes; filaments incurved; anthers oval; ovary free from the disk, almost superior, coni- cal, 2-3-celled, contracted into a short erect thick style; stigma 2-3-lobed. Fruit drupaceous; flesh thin; stone crustaceo-membranaceous. Seed ovoid or subglobose; seed-coat very thin, conspicuously rugose and tuberculate; embryo axile in copious subcorneous ruminate albumen; cotyledons oblong. Reynosia is distributed from southern Florida and the Bahama Islands to the An- tilles. Four species are recognized; of these, one, a small tree, extends into south- ern Florida. The generic name is in honor of Alvaro Reynoso (1830-1888), the distinguished Cuban chemist and writer on agriculture and scientific subjects. 1. Reynosia septei^rionalis, Urb. Red Ironwood. Darling Plum. (^Reynosia latifolia, Silva N. Am. ii. 21.) Leaves oval or oblong, or sometimes nearly orbicular, rounded, truncate or fre- quently emarginate and usually minutely apiculate at the apex, gradually narrowed at the base into short broad petioles, very thick and coriaceous, dark green on the upper, rather paler or often rufous on the lower surface, l'-l|' long and ^' broad, with thickened revolute margins, stout broad midribs, about five pairs of primary veins spreading nearly at right angles, and numerous reticulate veinlets, unfolding in April and remaining on the branches for one and sometimes for two years. Flowers appearing in May, Jj' long. Fruit ripening in Florida in November or frequently not until the following spring, short-obovate ^' long, purple or nearly black, edible, with an agreeable flavor. A tree, 20°-25° high, with a trunk 6'-8' in diameter, stout terete rigid branchlets slightly puberulous at first, soon becoming glabrous and gray faintly tinged with red, growing darker in their second season, then often covered by small tubercles and marked by the prominent elevated leaf-scars. "Winter-buds minute, chestnut-brown. Bark of the trunk -^q'-^ thick, dark red-brown, and divided into large thick plate- like scales. Wood heavy, exceedingly hard, strong, close-grained, rich dark brown, with light brown sapwood of 15-20 layers of annual growth. Distribution. Coast and islands of southern Florida from the Marquesas group 660 TREES OF NORTH AMERICA to the shores of Bay Biscayne; common and generally distributed; also on the Ba- hama Islands. 3. KRUGIODENDRON, Urb. A small tree or shrub, with slender unarmed terete branches roughened by numer- ous small lenticels, and minute scaly buds. Leaves opposite or obliquely opposite, or sometimes alternate on lower branches, ovate or oval, often emarginate, coriaceous, entire, short-petiolate, feather-veined, persistent. Flowers greenish yellow, on short slender pedicels, in axillary simple or dichotomously branched cymes; calyx broadly obconical, 5-lobed, the lobes triangular, acute, erect or spreading, crested on the inner surface, deciduous; disk annular, broad, fleshy, 5-lobed, surrounding the base of the ovary; petals 0; stamens 5, inserted under the margin of the disk; anthers ovate or ovate-orbicular, obtuse; ovary conical, imperfec^y 2-celled ; styles short and thick, imited nearly to the apex, the branches spreading and stigmatic on the inner face; ovule ascending from the base of the cell. Fruit 1-seeded, ovate or ovoid; flesh thin ; walls of the stone thin and bony. Seed ellipsoidal, compressed, without albumen; seed-coat membranaceous; embryo filling the cavity of the seed; cotyle- dons thick and fleshy, obovate or elliptical. Krugiodendron with a single species is confined to southern Florida and the West Indies. The generic name is in honor of Leopold Krug (1833-1898), a student of the flora of the Antilles. 1. Krugiodendron ferreum, Urb. Black Iron-wood. (Rhamnidium ferreum, Silva N. Am. ii. 29.) Leaves bright green and lustrous on the upper, pale yellow-green on the lower surface, glabrous with the exception of a few scattered hairs on the upper surface and on the petioles, I'-l^' long, |'-1' wide, with entire or slightly undulate margins, persistent for two or three years; their petioles stout, Y long; stipules acuminate, persistent. Flowers on bibracteolate pedicels ^' long, in 3-5-flowered cymes on peduncles sometimes i' long, usually much shorter and often branched near the apex, on branchlets of the year; calyx about ^' long, the acuminate lobes conspicuously RHAMNACE^ 661 crested on the inner surface. Fruit generally solitary on a stem |'-^' long, ^' in lensfth, with thin black flesh. A tree, sometimes 30° high, with a trunk 8' -10' in diameter, and very slender branchlets at first green and covered with dense velvety pubescence, becoming gla- brous in their second year, and then gray faintly tinged with red and roughened by small crowded leuticels; generally much smaller and more often shrubby than arbo- rescent. Bark of the trunk about Y thick and divided into prominent rounded longi- tudinal ridges broken on the surface into short thick light gray scales. Wood exceedingly heavy, hard, strong, close-grained, brittle, rich orange-brown, with thin lighter colored sapwood. Distribution. Florida, from Cape Canaveral on the west ooast, through the southern keys to the shores of Bay Biscay ne; one of the commonest of the small trees of the region ; also on the Bahama and West Indian islands. 4. RHAMNUS, L. Trees or shrubs, with terete often spinescent branches, without terminal buds, and scaly or naked axillary buds and acrid bitter bark. Leaves alternate or rarely ob- liquely opposite, conduplicate in the bud, petiolate, feather-veined, entire or dentate. Flowers perfect or polygarao-dicecious, in axillary simple or compound racemes or fascicled cymes; calyx campanulate, 4:-5-lobed, the lobes triangular-ovate, erect or spreading, keeled on the inner surface, deciduous; disk thin below, more or less thickened above; petals 5, inserted on the margin of the disk, ovate, unguiculate, emarginate, infolded round the stamens, deciduous, or 0; stamens 4 or 5; filaments very short; anthers oblong-ovate or sagittate, rudimentary and sterile in the pistil- late flower; ovary free, ovoid, included in the tube of the calyx, 2-4-celled, rudi- mentary in the staminate flower; styles united below, with spreading stigmatic lobes or terminating in a 2-3-lobed obtuse stigma; ovule erect from the base of the cell. Fruit drupaceous, oblong or spherical; flesh thick and succulent, inclosing 2-4 sepa- rable cartilaginous 1-seeded nutlets. Seeds erect, obovate, grooved longitudinally on the back, with a cartilaginous seed-coat, the raphe in the groove, or convex on the back, with a membranaceous seed-coat, the raphe lateral next to one margin of the cotyledons; embryo large, surrounded by thin fleshy albumen; cotyledons oval, folia- ceous, with re volute margins, or flat and fleshy. Rhamnus with about sixty species is widely distributed in nearly all the temperate and in many of the tropical parts of the world with the exception of Australia and the islands of the Pacific Ocean. Of the five species indigenous to the United States three attain the size of small trees. The fruit and bark of Rhamnus are drastic, and yield yellow and green dyes. The European Rhamnus cathartica, L., the Buckthorn, has long been used as a hedge plant in northern Europe, and in eastern North America, where it has now become sparingly naturalized. The generic name is from p6.iJ.vos, the classical name of the Buckthorn. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT SPECIES. Flowers polygamo-dicBcious, in sessile umbels ; calyx 4-lobed ; petals 0 ; anthers oblong-ovate ; lobes of the stigma elongated, spreading ; fruit red ; seed grooved on the back ; seed-coat cartilaginous ; leaves often sharply toothed, persistent ; winter-buds scaly. 1. R. crocea (G). Flowers perfect, in pedunculate umbels ; calyx 5-lobed ; petals 5 ; anthers sagittate ; lobes of the stigma short and obtuse ; fruit black ; seed rounded on the back ; seed-coat mem- branaceous ; leaves deciduous ; winter-buds naked. 662 TREES OF NORTH AMERICA Pocluncles shorter than the petioles. PeJiuicles longer than the petioles. 2. R. Caroliniana (C). 3. R. Purshiana (B, G). I 1. Rhamnus crocea, Nutt. Leaves persistent, elliptical, broadly ovate or subrotund, or rarely lanceolate- acuminate, mucronate or rounded at the apex, acutely or of ten glandular-denticulate, sometimes revolute, coriaceous, yellow-green and lustrous on the upper surface, paler or frequently bronzed or copper color on the lower surface, glabrous or often puberu- lous, especially when young, on the under surface of the midribs and petioles, ^'-3' long, with prominent midribs grooved above and broad conspicuous primary veins; their petioles short and stout. Flowers polygamo-dicecious, on slender often puberu- lous pedicels ^' long, in small clusters from the axils of the leaves or of small lan- ceolate persistent bracts on shoots of the year; calyx 4-lobed, with acuminate lobes, about \' long; petals 0; stamens shorter than the calyx, with short stout incurved filaments and large ovate anthers, minute and rudimentary in the pistillate flower; ovary ovate, contracted into a long slender style divided above the middle into 2 wide-spreading acuminate stigmatic lobes, rudimentary in the staminate flower. Fruit red, obovoid, slightly grooved or lobed at maturity, \' long, with thin dry flesh and 1-3 nutlets; seeds broadly ovate, pointed at the apex, deeply grooved on the back, and ^ long, with a thin membranaceous pale chestnut-colored coat. A tree, occasionally 20° high, with a trunk 6'-8' in diameter, spreading rigid sometimes spinescent branches, and slender branchlets yellow-green and puberulous or glabrate when they first appear, becoming dark red or reddish brown and gla- brous in their second season; more frequently a low densely branched shrub, with stems a few feet high forming thickets of considerable extent. Winter-buds obtuse, barely more than J^' long, with small puberulous apiculate imbricated scales ciliate on the margins. Bark of the trunk usually iV"¥ tliick, the dark gray surface slightly roughened by minute tubercles. Distribution. Valley of the upper Sacramento River, California, southward along the Sierra Nevada to about latitude 28 on the mainland and to Guadaloupe Island, Lower California; usually an undershrub under the shade of trees and along the borders of the forest or in sheltered ravines ; sometimes appearing in exposed situ- ations on sunny hillsides in the neighborhood of streams; arborescent only in some RHAMNACE^ 663 of the interior valleys of southern California and on Cedros Island and the Santa Barbara Islands. Passing into Rhamnus crocea, var. insularis, Sarg. A form with less prominently toothed leaves, rather larger flowers, with shorter and broader calyx-lobes, a less deeply divided style, and larger fruits. This is a tree often growing to the height of 25°-30°, flowering later than thetirdinary form, and not uncommon on the islands of the Santa Barbara group and on the mountains of the adjacent mainland. A form (var. pilosa, M. K. Curr.) with narrow re volute leaves and densely pilose throughout, inhabits the Santa Maria valley of the moun- tains near San Diego. 2. Rhamnus Caroliniana, "Walt. Indian Cherry. Leaves deciduous, elliptical-oblong or broadly elliptical, acute or acuminate, wedge-shaped or somewhat rounded at the base, remotely and obscurely serrate or crenulate, densely coated when they appear with rusty brown tomentura, and at maturity membranaceous, dark yellow-green above, paler below, glabrous or some- what hairy on the lower surface, 2'-6' long, 1' to nearly 2' wide, with prominent yellow midribs and about 6 pairs of conspicuous yellow primary veins, turning yel- low in the autumn before falling; their petioles slender, pubescent, ^ to nearly V long; stipules nearly triangular. Flowers appearing from April to June when the leaves are almost fully grown, on slender pedicels about ^ ^ong, in few-flowered pubescent umbels, on peduncles varying from ^'-^' in length; calyx 5-lobed, with a narrow turbinate tube and triangular lobes; petals o, broadly ovate, deeply notched at the apex and folded round the short stamens; ovary contracted into a long co- lumnar style terminating in a slightly 3-lobed stigma. Fruit ripening in September and sometimes remaining on the branches until the beginning of winter, globose, ^' in diameter, black, with thin sweet rather dry flesh and 2-4 nutlets; seeds obtuse at the apex, rounded on the- back, reddish brown, about ^' long. A tree, 30°-40° high, with a trunk 6'-8' in diameter, small spreading unarmed branches, and slender branchlets light red-brown and puberulent or covered with a glaucous bloom when they first appear, becoming slightly angled, gray, and glabrous, and marked by the small horizontal oval leaf-scars during their second season; more often a tall shrub, with numerous stems lo°-20° high. "Winter-buds naked, hoary- 664 TREES OF NORTH AMERICA tomentose. Bark of the trunk about \' thick, slightly furrowed, ashy, gray and often marked with large black blotches. Wood rather hard, light, close-grained, not strong, light brown, with lighter colored sapwood of 5 or 6 layers of annual growth. Distribution. Borders of streams on rich bottom-lands, and on limestone ridges; Virginia to northern Florida and westward through the valley of the Ohio River to eastern Nebraska, eastern Kansas, and eastern Texas; occasionally tree-like in west- ern Florida and Mississippi, and of its largest size only in southern Arkansas and the adjacent portions of Texas; very abundant on the limestone barrens of eastern Kentucky and Tennessee. 3. Rhamnus Purshiana, DC. Bearberry. Coffee-tree. Leaves deciduous, broadly elliptical, obtuse or bluntly pointed at the apex, rounded or slightly cordate at the base, finely serrate, or often nearly entire, with undulate margins, membranaceous, villose, with short hairs on the lower surface and on the veins above, 2'-7' long, conspicuously netted-veined, with broad and prominent midribs and primary veins, turning pale yellow late in the autumn before fall- ing; their petioles stout, often pubescent, ^'-1' long; stipules membranaceous, acu- minate. FloAvers on slender pubescent pedicels \'-V long, in axillary cymes on slender pubescent peduncles |'-1' in length on shoots of the year; calyx nearly campanulate, with 5 spreading acuminate lobes; petals 5, minute, ovate, deeply notched at the apex, and folded round the short stamens; stigma 2 or 3-lobed. Fruit globose or broadly obovoid, black, y-^' in diameter, slightly or not at all lobed, with thin rather juicy flesh, and 2 or 3 obovate nutlets usually ^' long, rounded on the back, flattened on the inner surface, with 2 bony tooth-like enlargements at the base, 1 on each side of the large scar of the hilum, and a thin gray or pale yellow- green shell; seeds obtuse at the apex, rounded on the back; seed-coat thin and papery, yellow-brown on the outer surface, bright orange color on the inner surface like the cotyledons. A tree, 35°-40° high, with a slender trunk often 18'-20' in diameter, separating 10°-15° from the ground into numerous stout upright or sometimes nearly horizontal branches, and slender branchlets coated at first with fine soft pubescence, pale yel- low-green or reddish brown, and pubescent, glabrous, or covered with scattered hairs in their second season and then marked by the elevated oval horizontal leaf -scars; KHAMNACE^ 665 often shrubby and occasionally prostrate. Winter-buds naked, hoary-tomentose. Bark of the trunk rarely more than ^' thick, dark brown to light brown or gray tinged with red, broken on the surface into short thin scales. Wood light, soft, not strong, brown tinged with red, with thin lighter colored sapwood. The bark pos- sesses the drastic properties peculiar to thajt of other species of the genus, and is a popular domestic remedy in Oregon and California, and under the name of Cascara Sagrada has been admitted into the American materia medica. Distribution. Rich bottom-lands and the sides of canons, usually in coniferous forests; shores of Puget Sound eastward along the mountain ranges of northern Washington to the Bitter Root Mountains of Idaho and the shores of Flat Head Lake, Montana, and southward into northern California. Occasionally cultivated in the gardens of western Europe and of the eastern United States. 5. CEANOTHUS, L. Small trees or shrubs, with slender terete branches, without terminal buds, and small scaly axillary buds. Leaves petiolate, triple-veined from the base, or rarely pinnately veined, persistent. Flowers on colored pedicels, in umbellate fascicles col- lected in dense or prolonged terminal or axillary thyrsoid cymes or panicles, blue or white ; calyx colored, with a turbinate or hemispherical tube and 5 triangular mem- branaceous petaloid lobes; disk fleshy, thickened above; petals 5, inserted under the margin of the disk, unguiculate, wide-spreading, deciduous, the long claw infolded round the stamens; stamens 5, inserted with and opposite the petals, persistent; filaments spreading; ovary partly immersed in and more or less adnate to the disk, 3-celled, sometimes 3-angled, the angles often surmounted by a fleshy gland per- sistent on the fruit; styles short, united below; stigmas 3-lobed, with spreading lobes; ovule erect from the base of the cell; Fruit 3-lobed, subglobose, with a thin outer coat, soon becoming dry and separating into 3 crustaceous or cartilaginous longitudi- nally 2-valved nutlets. Seeds erect, obovate-lenticular, with a broad basal excrescence surrounding the hilum; seed-coat thin, crustaceous; raphe ventral; albumen fleshy; embryo axile; cotyledons oval or obovate. Ceanothus is confined to the temperate and warmer regions of North America, with about thirty species, mostly belonging to California. The leaves, bark, and 666 TREES OF NORTH AMERICA roots are astringent and tonic. Of the species of the United States three are small trees. The generic name is from Keavwdos, the classical name of some spiny plant. CONSPECTUS OF THE ARBORESCENT SPECIES OF THE UNITED STATES. Branchlets not spinose. Leaves broadly ovate to elliptical, subcordate or rounded at the base, pale and tomentose below. 1. C. arborescens (G). Leaves elliptical, acute at the base, glabrous except on the veins below. 2. C. thyrsiflorus (G). Branchlets spinose. Leaves mostly elliptical, rounded ^r subcordate at the base, glabrous. 3. C. spiuosus (G). 1. Ceauothus arboreus, Greene. i^Ceanothus velut'mus, var. arboreus, Silva N. Am. ii. 45.) Leaves broadly ovate or elliptical, acute, conspicuously glandular-crenate, dark green and softly puberulent on the upper surface, pale and densely tomentose on the lower surface, 2i'-4:' long, V-2^' wide, vs^ith prominent veins; their petioles stout, pubescent, ^'-V long; stipules subulate from a broad triangular base, ^ long. Flo"wers opening in July and August on slender hairy pedicels ^'-1' long, from the axils of large scarious caducous bracts, in ample compound densely hoary-pubescent thyrsoidal clusters 3'^' long and l^'-2' wide on leafy or naked axillary peduncles at the extremities of young branches. Fruit ^' across and black. A round-headed tree,, 20°-25° high, with a straight trunk 6'-10' in diameter, dividing 4°-5° from the ground into many stout spreading branches, and slender slightly angled pale brown branchlets covered with short dense tomentum, becoming in their second season terete, nearly glabrous, roughened with scattered lenticels and marked by large elevated leaf-scars; often a shrub. Bark of the trunk dark brown, about Y thick, and broken into small square plates separating into thick scales. Distribution. Santa Catalina, Santa Cruz, and Santa Rosa islands of the Santa Barbara group off the coast of California; most abundant and of its largest size on the northern slopes of Santa Cruz; usually shrubby on the other islands, with numerous slender stems. RHAMNACE^ 667 2. Ceanothus thyrsiflorus, Eschs. Blue Myrtle. California Xilac. Leaves oblong or oblong-ovate, minutely glandular-serrate, smooth and lustrous on the upper and paler and slightly pubescent on the lower surface, especially along the 3 prominent ribs, l'-l|' long, ^'-1' wide; their petioles stout, ^'-^' in length; stipules membranaceous, acute. Flo^wers blue or white, appearing in early spring in small pedunculate corymbs from the axils of minute deciduous bracts, and collected into slender rather loose thyrsoid clusters 2'-3' long in the axils of upper leaves or of small scarious bracts, and usually surmounted by the terminal leafy shoot of the branch. Fruit ripening from July to December, black; seeds J^' long, smooth, dark brown or nearly black. A tree, occasionally 35° high, with a trunk 12'-14' in diameter, dividing 5°-6° from the ground into many small wide-spreading branches, and conspicuously angled pale yellow-green branchlets slightly pubescent at first but soon-becoming glabrous; more often a tall or low shrub. Bark of the trunk thin, with a bright red-brown surface separating into thin narrow appressed scales. Wood close-grained, rather soft, light brown, with thin darker colored sapwood. Distribution. Shady hillsides on the borders of the forest and often in the neigh- borhood of streams; coast mountains of California from Mendocino County to the valley of the San Luis Rey River; of its largest size northward, and in the Redwood forests of the Santa Cruz Mountains; southward often a low shrub, frequently flower- ing on the wind-swept shores of the ocean when only l°-2° high. 3. Ceanothus spinosus, Nutt. Lilac. Leaves rarely 3-nerved, elliptical, full and rounded, apiculate or often slightly emarginate or gradually narrowed and pointed or rarely 3-lobed at the apex, rounded or cuneate at the base, when they unfold villose-pubescent below along the stout midribs and obscure primary veins, soon glabrous, coriaceous, usually about 1' long and |' wide; their petioles stout, ^'-^ long, at first villose, becoming nearly glabrous; on vigorous shoots sometimes ovate, conspicuously 3-nerved, irregularly serrate, with incurved apiculate teeth, or coarsely dentate and often 1^ long and |' wide; stipules minute, acute. Flowers light or dark blue, very fragrant, opening from March until May, in lax corymbs from the axils of acute pubescent red cadu- 668 TREES OF NORTH AMERICA cous bracts on upper leafy branchlets of tlie year, the whole inflorescence forming an open tl)yrsus often 5'-6' long and 3'-^' thick, and without leaves toward the apex. Fruit depressed, obscurely lobed, crestless, black, \'-l' in diameter. A tree, 18°-20° high, with a trunk 5'-G' in diameter, upright branches forming a narrow open head, and slender divaricate angled branchlets pubescent or puberulous iSH when they first appear, soon glabrous, bright green, ultimately reddish brown, fre- quently terminating in sharp leafless thorn-like points; more often shrubby. Bark of the trunk thin, red-brown, roughened by small closely appressed scales. Distribution. A common inhabitant of mountain canons near the coast of Santa Barbara, Ventura, and Los Angeles counties, California; often forming a dense undergrowth in the forest, which it enlivens for many weeks in early spring with its large clusters of bright blue flowers. 6. COLUBRINA, Brong. Trees or shrubs, with terete branches and scaly buds. Leaves petiolate, pinnately veined or triple-veined from the base, often ferrugineo-tomentose on the lower sur- face. Flowers axillary, in contracted few-flowered cymes or fascicles, yellow or greenish yellow; calyx-tube hemispherical, persistent, 5-lobed, the lobes spreading, triangular-ovate, conspicuously keeled on the inner surface, deciduous by a circum- scissile line; disk fleshy, annular, 5-angled or indistinctly 5 or 10-lobed; petals 5, inserted under the margin of the disk, shorter than the lobes of the calyx, cucullate, unguiculate, infolding the stamens; stamens 5, opposite to and inserted with the petals ; filaments incurved ; anthers ovate ; ovary surrounded by and confluent with the disk, 3-celled, subglobose, contracted into a slender 3-lobed style, the obtuse lobes stigmatic on the inner face; ovule erect, from the base of the cell. Fruit sub- globose, 3-lobed; outer coat thin and septicidally dehiscent into 3 1-seeded crusta- ceous nutlets 2-valved at the apex. Seeds erect, broadly obovate, compressed, 3- angled; seed-coat coriaceous, smooth and shining; embryo axile in thick fleshy albu- men; cotyledons orbicular, flat or incurved, thin or fleshy. Colubrina with about a dozen species is confined to the tropics, with the largest number of species in the New World. Of the four species found within the terri- tory of the United States one is arborescent in habit. TILIACE^ 669 The generic name is from coluber, a serpent, probably on account of the peculiar twisting of the deep furrows on the stems of some of the species. 1. Colubrina reclinata, Brong. Naked "Wood. Leaves persistent, elliptical, ovate or lanceolate, usually contracted at the apex into a blunt point, entire, wedge-shaped or somewhat rounded and furnished with 2 conspicuous marginal glands at the base, when they unfold in early summer thin and membranaceous, glabrous or finely puberulent on the lower surface and along the principal veins, and at maturity yellow-green, 2^'-3' long, 1^' to nearly 2' wide, with stout midribs and arcuate primary veins, persistent until their second year; their petioles slender, y long. Flo^wers in clusters rather shorter than the petioles, on shoots of the year, pubescent, soon becoming glabrate. Fruit \' in diameter and dark orange-red, ripening late in the autumn, on pedicels \' long; seeds light red- brown, 1' long. A tree, 50°-60° high, with a trunk 3°^° in diameter, divided by numerous irregu- lar deep furrows multiplying and spreading in all directions, and branchlets at first iKijH-y slightly angled, puberulent and reddish brown, soon becoming glabrate, and in their second season nearly terete, gray or light brown, and marked by numerous small light-colored lenticels. Bark of the trunk thin, orange-brown, exfoliating in large papery scales. Wood heavy, hard, very strong, dark brown tinged with yellow, with thin light yellow sapwood of 8-10 layers of annual growth. Distribution. Florida on Umbrella Key, the north end of Key Largo, and on some of the small keys south of Elliott's Key; of its largest size and forming a forest of considerable extent on Umbrella Key; also on the Bahama Islands and many of the Antilles. XXXVn. TILIACE-SI. Trees, shrubs, or herbs, with alternate simple leaves, and free stipules. Flowers regular, perfect ; sepals valvate in the bud, deciduous ; corolla bypo- gynous ; stamens numerous, with 2-celled anthers, the cells opening longitudi- nally ; pistil compound ; styles united into 1 ; stigma capitate. Fruit capsular or nut-like. Seeds with albumen ; embryo with broad foliaceous cotyledons. 670 TREES OF NORTH AMERICA The Linden family with about thirty-five genera is chiefly tropical, with more representatives in the southern than in the northern hemisphere. Of the three North American genera only Tilia is arborescent. 1. TILIA, L. Linden. Trees, with terete moderately stout branchlets, without terminal buds, large com- pressed acute axillary buds, with numerous imbricated scales, those of the inner rank accrescent, mucilaginous juice, and tough fibrous inner bark. Leaves condu- plicate in the bud, long-petiolate, 2-ranked, cordate or truncate at the oblique base, acute or acuminate, serrate, deciduous, their petioles in falling leaving large elevated horizontal leaf-scars displaying the ends of numerous fibro-vascular bundles; stip- ules ligulate, membranaceous, caducous. Flowers nectariferous, fragrant, on slender clavate pedicels, in axillary or terminal cymes, with minute caducous bracts at the base of the branches, their peduncles more or less connate with the axis of a large membranaceous light green ligulate often obovate persistent conspicuously reticulate- veined bract; sepals 5, distinct; petals 5, imbricated in the bud, alternate with the sepals, sometimes thickened and glandular at the narrow base, creamy white, decid- uous; stamens inserted on a short hypogynous receptacle; filaments filiform, forked near the apex, collected into 5 clusters and united at the base with each other and (in the American species) with a spatidate petaloid scale (^staminodium) placed opposite each petal, the branches of the filament bearing oblong extrorse half anthers; ovary sessile, tomentose, 5-celled, the cells opposite the sepals; style erect, dilated at the apex into 5 spreading stigmatic lobes; ovules 2 in each cell, ascending from the middle of its inner angle, semianatropous, the micropyle centripetal-inferior. Fruit nut-like, woody, subglobose to short-oblong or ovoid, sometimes ribbed, tomentose, 1-celled by the obliteration of the partitions, 1 or 2-seeded. Seeds obovate, semi- anatropous, ascending ; seed-coat cartilaginous, light reddish brown; embryo large, often curved, in fleshy albumen; cotyledons reniform or cordate, palmately 5-lobed, the margins irregularly involute or crumpled; radicle inferior. Tilia with eighteen or twenty species is widely distributed in the temperate re- gions of the northern hemisphere with the exception of western America, central Asia, and the Himalayas. Tilia produces soft straight-grained pale-colored light wood, largely used for the interior finish of buildings, in cabinet-making, for the sounding-boards of pianos, wood-carving and wooden ware, and in the manufacture of paper. The tough inner bark is largely manufactured into mats, cords, fish-nets, coarse cloths, and shoes. Lime-flower oil, obtained by distilling the flowers of the European species, is used in perfumery. The flowers yield large quantities of nectar, and honey made near forests of Tilia is unsurpassed in flavor and delicacy. Many of the species are planted as shade and ornamental trees, and several of the European species are now common in the gardens and parks of the eastern United States. CONSPECTUS OF SPECIES OF THE UNITED STATES. Branchlets g-labrous. Leaves glabrous. • Leaves green on both surfaces. 1. T. Americana (A, C). Leaves pale on the lower surface. Peduncles and pedicels glabrous ; staminodia entire ; leaves mostly cordate at the base. 2. T. australis (C). TILIACE^ 671 Peduncles and pedicels puberulous ; staminodia emarginate ; leaves mostly obliquely truncate at the base. 3. T. Floridana (C). Leaves pubescent or tomentulose below. Leaves more or less stellate-pubescent below, with conspicuous axillary tufts of hairs. 4. T. Michauxii (A, C). Leaves hoary-tomentulose below, without axillary tufts of hairs. 5. T. heterophylla (A, C). Branchlets stellate-pubescent ; leaves rusty-tomentulose below. (j. T. pubescens (C), 1. Tilia Americana, L. Linden. Bass "Wood. Leaves broadly oval, obliquely cordate or sometimes almost truncate at the base, contracted at the apex into slender acuminate entire points, coarsely serrate, with incurved glandular teeth, glabrous with the exception of tufts of rnsty brown hairs in the axils of the principal veins below, thick and firm, dark dull green on the upper, lighter and yellow-green and lustrous on the lower surface, 5'-6' long, 3'-4' broad, turning pale yellow in the autumn before falling; their petioles slender, l^'-2' long. l(\J^ Flo"wers opening during the first week of July; pedunculate bract 4'-5' long, I'-l^' broad, rounded or pointed at the apex, decurrent nearly to the base or to within ^'-1' of the base of the peduncle; peduncle slender, glabrous, the free portion 3^ '-4' long; pedicels slightly angled, puberulous, about ^' long; sepals ovate, acuminate, densely hairy on the inner and slightly pubescent on the outer surface, about ^ long and one third shorter than the lanceolate petals. Fruit oblong to oblong-obovate, rounded or pointed at the apex, ^'-^' long, and covered with short thick rufous tomentum. A tree, usually 60°-70°, or sometimes 120°-130° high, with a tall trunk 3°-4° in diameter, small often pendulous branches forming a broad round-topped head, slender smooth glabrous light gray or light brown branchlets marked with numerous oblong dark lenticels, becoming darker in their second and dark gray or brown and con- spicuously rugose in their third year. Winter-buds dark red, ovate, about \' long. Bark of the trunk about 1' thick, deeply furrowed, the light brown surface broken into small thin scales. "Wood light brown faintly tinged with red, with thick hardly distinguishable sapwood of 55-65 layers of annual growth; employed in the manu- facture of paper pulp, and under the name of white wood largely used in wooden ware, cheap furniture, the panels of carriages, and for the inner soles of shoes. 672 TREES OF NORTH AMERICA Distribution. Rich often moist soil, formerly often in mostly pure forests; northern New Brunswick to the eastern shores of Lake Superior, and northeastward to the southern shores of Lake Winnipeg and the valley of the Assiniboine River, and south in the United States to Virginia, along the Appalachian Mountains to Georgia and Alabama, and to eastern Dakota, eastern Nebraska, Kansas, the Indian Territory, and eastern Texas; more common northward than southward, and of its largest size on the bottom-lands of the tributaries of the lower Ohio River. Often cultivated as a shade and ornamental tree in the northeastern states, and occasionally in Europe. * 2. Tilia australis. Small. Linden. Leaves ovate, abruptly acuminate at the apex, mostly cordate by a broad shallow sinus at the oblique base, sharply serrate, with prominently glandular teeth, thin, dark green and lustrous above, glaucous beneath, sparingly hairy while young on the under side of the slender midribs and in the axils of the thin primary veins, becom- ing glabrous, 4'-6' long, 3^'-4' wide ; their petioles slender, 2'-3' in length. Flowers : pedunculate bract decurrent nearly to the base of the peduncle, glaucous, glabrous, about 3^' long and ^ wide; peduncle slender, glabrous, the free portion about 1^' long; pedicels glabrous, about \' in length; sepals narrowly ovate to ovate-lanceolate, hoary-tomentose along the margins on the inner surface and toward the apex on the outer surface, about \' long and one third shorter than the lanceolate petals; stam- inodia entire. Fruit not seen. A tree, sometimes 60° high. Distribution. Rich wooded hillsides at elevations of 800° above the sea on Warnock Mountain, Blount County, Alabama (C Mohr, 1895); still little known. 3. Tilia Floridana, Small. Linden. Leaves ovate or ovate-oval, abruptly narrowed and acuminate at the apex, mostly obliquely truncate or unequally cuneate at the base, remotely crenulate-serrate, with glandular teeth, dark green above, pale below, glabrous with the exception of minute tufts of brownish hairs in the axils of the slender veins beneath, 4'-6' long, 3'-3y wide, their petioles 1^-1^' in length. Flowers ; pedunculate bract decurrent to within \'~\' of the base of the peduncle, puberulous, 3'-4' long, f '-1' TILIACE^ 673 fr^S^ wide; peduncle slender, puberulous, the free portion f'-l' long; pedicels puberulous, about ^' long; sepals lanceolate to linear-lanceolate, hoary-tomentulose on the outer surface, much shorter than the lanceolate petals; staminodia emarginate. Fruit not seen. A tree, 25°-30° high. Distribution. Rich woods; Lake Charm, Orange County (T. L. Mead, 1887), and in Jackson County, Florida; still little known. 4. Tilia Michauxii, Nutt, Linden. Bass Wood. Leaves broadly ovate, abruptly narrowed into short acute entire points, obliquely cordate by a broad sinus or rarely truncate at the base, sharply serrate, with long straight or incurved glandular teeth, thick, dark green and lustrous and glabrous or sparingly stellate-pubescent above, pale and more or less stellate-pubescent below, with small conspicuous axillary tufts of pale hairs, usually 5'-6' long and 3^'-4' wide, with slender orange-brown or yellow midribs and primary veins, turning yellow in the autumn before falling; their petioles stout, at first puberulous, becoming glabrous, l^'-2' long. PloTvers: pedunculate bract decurrent nearly to the base or to within ^'-f' of the base of the peduncle, narrowly obovate, tomentulose on the upper, glabrous on the lower surface, 5'-6' long; peduncle slender, glabrous, the free 674 TREES OF NORTH AMERICA portion about If long; pedicels puberulous, \'—!^' long; sepals ovate, acuminate, pale pubescent on the outer surface, coated on the inner surface with matted white hairs, about one third as long as the lanceolate to ovate petals. Fruit subglobose to short- oblong, hoary-tomentose, about ^' in diameter. A tree, 70°-80° high, with a trunk 2°-3° in diameter, small often pendulous branches forming a round-topped head, and branchlets bright red and lustrous dur- ing their first winter and reddish brown in their second season. Winter-buds \'-^' long, with pale red-brown scales. Bark of the trunk about 1' thick, deeply fur- rowed, reddish brown and covered with small thin scales. Distribution. Rich woods; valley of the St. Lawrence River near Montreal, near Rochester and Ithaca, New York, to eastern Pennsylvania, Delaware, Ohio, and southward to northern Georgia and eastern Texas; probably often confounded with Tilia pubescens, Ait., and still imperfectly known. 5. Tilia heterophylla, Vent. Linden. Bee-tree. Leaves gradually narrowed and short-pointed at the apex, obliquely truncate or cordate at the base, finely serrate, with short slender glandular teeth, membrana- ceous, bright green and pubescent while young along the midribs above, becoming I glabrous, silvery white and tomentulose on the lower surface, 4'-7' long, 4'-5' wide, with slender midribs and primary veins; their petioles slender, glabrous, 2'-3' long. Flo-wers appearing during the month of June; pedunculate bract usually decurrent to within about Y of the base of the peduncle, or sometimes to the base, generally about 4' long and |-1' wide; peduncle slender, stellate-pubescent, becoming gla- brous, the free portion 1^-2' long; pedicels slender, about \' long, nearly glabrous; sepals narrow, acuminate, puberulous on the outer, tomentulose on the inner surface, nearly \' long and one third shorter than the narrow acuminate petals. Fruit sub- globose, Y in diameter, tomentulose, with short closely appressed cinereous hairs. A tree, 50°-60° high, with a trunk 3°-4° in diameter, slender branches forming generally a narrow rather pyramidal head, and glabrous green or bright red branch- lets gradually turning brown during their second year, and marked by numerous large oblong pale lenticels. Winter-buds broadly ovate, bright red, covered with a slight glaucous bloom, |'-1' long. Bark of the trunk about ^' thick, deeply fur- rowed, the surface broken into short thin light brown scales. Wood light brown I TILIACE^ 675 faintly tinged with red, with thin hardly distinguishable sapwood of 5 or 6 layers of annual growth. Distribution. Rich wooded slopes in moist soil or near the banks of streams; often on limestone; near Ithaca, New York, southward along the Appalachian Mountains to northern Alabama, and westward to middle Tennessee, Kentucky, and southern Indiana and Illinois; most abundant and of its largest size on the high mountains of North Carolina and Tennessee. 6. Tilia pubescens, Ait. Linden. Bass "Wood. Leaves ovate, acuminate, obliquely truncate at the base, coarsely glandular-ser- rate, when they unfold dark red and coated above with matted pale hairs and hoary- tomentose below, and at maturity membranaceous, dark green, pubescent or glabrous above, rusty-tomentulose below, usually 4'-5' long, 2^'-3' wide, their petioles slender, at first tomentose, becoming glabrous, about |' long. Flo"wers appearing in May; pedunculate bract decurrent to the base of the peduncle, hardly obovate, sometimes falcate, 3'^' long, about |' wide, villose on the upper, glabrous on the lower surface; peduncle slender, stellate-pubescent, the free portion about 1^' long; pedicels short, stellate-pubescent; sepals narrow-acuminate, pale-tomentose on the outer, sparingly hairy on the inner surface, about ^ long^ and rather shorter than the narrow acumi- nate petals. Fruit subglobose to short-oblong, ^'-j' in diameter, rusty tomentose. A tree, 30°-40° high, with a trunk rarely exceeding 12'-15' in diameter, and slen- der branchlets densely rusty stellate-pubescent during their first season, becoming glabrous during their third year, red-brown, rugose and marked by occasional small lenticels. Winter-buds acuminate, dark reddish brown, covered with short rusty pubescence. Bark of the trunk ^^-f thick, furrowed and divided into numerous parallel ridges, the red-brown surface broken into numerous short thick scales. "Wood light brown faintly tinged with red, with thick hardly distinguishable sap- wood. Distribution. Coast of North Carolina southward in the neicrhborhood of the coast to northern Florida, and westward along the Gulf coast to the valley of the Rio Blanco, Texas, and southern Arkansas; not common. 676 TREES OF NORTH AMERICA XXXVIII. STERCULIACE-aJ. Trees or shrubs, with bitter astringent juice, mucilaginous bark, and alter- nate simple leaves with stipules. Flowers perfect, regular ; calyx of 5 sepals, imbricated in- the bud; corolla 0 (in Fremontodendron) ; anthers extrorse ; pistil of 5 united carpels ; ovary 5-celled ; styles united ; ovules anatropous. A family of about fifty genera mostly confined to the tropics, its most im- portant species, Theobroma Cacao, L., of the West Indies producing chocolate from the cotyledons. Sterculia platanifolia, L. f., of this family and a native of southern China, is often planted as an ornamental tree in the southern states and in California. 1. FREMONTODENDRON, Gov. A tree or shrub, with stellate pubescence and naked buds. Leaves palmately lobed, thick, prominently veined, usually rufous on the lower surface, persistent; stipules minute, deciduous. Flowers solitary, terminal or opposite the leaves, pedun- culate, subtended by 3 or rarely 5 minute caducous bracts; calyx subcampanulate, ^^ypogy^o^s, deeply 5-lobed, the lobes imbricated in the bud, petaloid, yellow, spreading, obovate, often mucronate, V long, the 3 outer a little smaller than the others, pubescent on the outer surface, with a hairy cavity at the base of the inner surface; corolla 0; stamens 5; filaments alternate with the sepals, united to the middle into a column; anthers oblong-linear, incurved at the ends, 2-celled, the cells opening longitudinally; ovary 5-celled, the cells opposite the sepals; style filiform, elongated, terminated by an acute undivided stigmatic point; ovules numerous in each cell, horizontal. Fruit an ovate acuminate 4 or 5-valved loculicidally dehiscent capsule densely coated with long matted hairs, the inner surface of the cells vil- lose-pubescent. Seeds oval; seed-coat crustaceous, puberulous, with a small fleshy marginal deciduous ariloid appendage on the chalaza; embryo straight, in thick fleshy albumen; cotyledons oblong, foliaceous, three or four times longer than the short radicle. Fremontodendron, named in honor of John C. Frdmont, the distinguished soldier and traveler, is represented by a single species. 1. Fremontodendron Californicum, Gov. Slippery Elm. Leaves usually 3-lobed, rarely entire or sometimes 5-7-lobed, 1^' in diameter; their petioles stout, ^'-f long. Flov/ers appearing in July in great profusion on short spur-like lateral branchlets. Fruit I'long; seeds very dark red-brown, about iV long. A tree, 20°-30° high, with a short trunk 12'-14' in diameter, stout rigid branches spreading almost at right angles, and stout terete branchlets thickly coated at first with rufous pubescence, becoming glabrous and light red-brown; more often a low intricately branched shrub. Bark of the trunk rarely more than ^ thick, deeply furrowed, the dark red-brown surface broken into numerous short thick scales. Wood hard, heavy, close-grained, dark brown tinged with red, with thick lighter colored sapwood. The mucilaginous inner bark is sometimes used domestically in poultices. Distribution. Lower slopes of the California mountains; western base of Mt. Shasta to Lower California; nowhere common west of the Sierra Nevada, but of its largest size on their western foothills; most abundant east of the Sierra Nevada in THEACILE 677 the region of the Mohave Desert, growing as a low shrub and sometimes forming thickets several acres in extent. Occasionally cultivated in western and southern Europe as an ornamental plant. XXXIX. THEACEiB. Trees or shrubs, with simple alternate leaves without stipules. Flowers per- fect, regular, hypogynous ; sepals and petals 5, imbricated in the bud ; stamens numerous; anthers 2-celled, the cells opening longitudinally; pistil of 3-5 united carpels ; ovary 3-5-celled ; styles as many as the cells of the ovary, partly united. Fruit capsular ; embryo with large cotyledons. The Camellia family with sixteen genera is principally confined to the tropics of the New World and to southern and eastern Asia. Two genera are represented in the flora of the southern United States, and of these Gordonia is arborescent. The most important genus, Camellia of eastern Asia contains the Tea plant. Camellia Thea, Link, and several species cultivated for the beauty of their flowers. 1. GORDONIA, Ell. Trees or shrubs, with terete branchlets, without terminal buds, slender acuminate naked axillary buds, and watery juice. Leaves pinnately veined, entire or crenate, subcoriaceous and persistent, or membranaceous and deciduous. Flowers axillary, solitary, long-stalked or subsessile; calyx subtended by 2-5 caducous bracts; sepals unequal, rounded, concave, coriaceous, persistent; petals free or slightly united, obovate, concave, white, deciduous; stamens numerous, filaments short, united at the base into a fleshy cup adnate to the base of the petals and inserted with them, or long and inserted directly on the petals; anthers introrse, yellow; ovary sessile; style elongated, erect, o-lobed at the stigmatic apex; ovules 4-8 in each cell, pendulous in 2 series from its inner angle, collateral, anatropous. Fruit a woody oblong or subglobose o-celled capsule loculicidally 5-valved, with a persistent axis angled by the projecting placentas. Seeds 2-8 in each cell, pendulous, flat, without albumen; seed-coat woody, usually produced upward into an oblong wing; embryo mostly straight or oblique, with oblong flat or oblique cotyledons; radicle short, superior. Gordonia with about ten species is confined to the south Atlantic states of North America and to tropical Asia and the Malay Archipelago. 678 TREES OF NORTH AMERICA The generic name is in honor of James Gordon (1728-1791), a well-known Loudon nurseryman. CONSPECTU« OF THE NORTH AMERICAN SPECIES. Flowers long-pedunculate ; filaments united into a cup ; capsule ovoid ; seeds winged ; leaves persistent. 1. G. Lasianthus (C). Flowers subsessile ; filaments distinct ; capsule globose ; seeds without wings ; leaves deciduous. 2. G. Altamaha (C). 1. Gordonia Lasianthus, Ell. Bay. Loblolly Bay. Leaves coriaceous, lanceolate to oblong, acute at the apex, gradually narrowed to the cuneate base, finely or remotely crenately serrate, usually above the middle only. %yj3 dark green, smooth and lustrous, 4'-5' long and l|'-2' wide, persistent; their petioles stout, wing-margined toward the apex, channeled, about ^' long. Flo"wers about 2^ in diameter, expanding in July and continuing to open successively during several weeks, on stout red peduncles thickening from below upward, and 2^'-3' long, with usually 3 or 4 ovate minute subfloral bracts; sepals ovate to oval, \' long, ciliate on the margins, with long white hairs, and covered on the outer surface with dense velvety pale lustrous pubescence; petals rounded at the apex, gradually con- tracted at the base, silky-puberulent on the back, white, 1|'-1^' long and V broad; stamens united into a shallow fleshy deeply o-lobed cup pubescent on the inner surface and adnate to the base of the petals; ovary ovate, pubescent, gradually contracted into the stout style. Fruit ovoid; seeds winged, nearly square, slightly concave on the inner and rounded on the outer surface, rugose, dotted with small pale brown excrescences, nearly ^^' long and half the length of the thin membranaqeous oblique pale brown wing pointed or rounded at the apex; embryo filling the cavity of the seed, nearly straight; cotyledons subcordate, foliaceous. A short-lived tree, 60°-75° high, with a tall straight trunk 18-20' in diameter, small branches growing upward at first and ultimately spreading into a rather nar- row compact head, and dark brown rugose branchlets marked during several years by the horizontal slightly obcordate leaf-scars; or rarely alow shrub. "Winter-buds \'-\' long, and covered with pale silky lustrous pubescence. Bark of the trunk nearly V thick, deeply divided into regular parallel rounded ridges, their dark red-brown scaly surface broken into many irregular shallow furrows. Wood light, THEACE^ 679 soft, close-grained, not durable, light red, with lighter colored sapwood of 40-50 layers of annual growth; occasionally used in cabinet-making. Distribution. Shallow swamps and moist depressions in the Pine barrens; south- ern Virginia southward near the coast to Cape Malabar and Cape Romano, Florida, and westward along the Gulf coast to the valley of the Mississippi River; most abundant in Georgia and east Florida; gradually becoming less abundant westward. 2. Gordonia Altamaha, Sarg. Franklinia. Leaves obovate-oblong, rounded or pointed at the apex, gradually narrowed to the base, long-cuneate, remotely serrate, usually above the middle only, with small glandular teeth, bright green and lustrous ou the upper, pale on the lower surface, o'-6' long, l^'-2' wide, turning scarlet in the autumn before falling; their petioles stout, wing-margined above, \'-^' long. Flowers 3'-3l' in diameter, appearing about the middle of September, on short stout peduncles at first pubescent, finally glabrous, from the axils of crowded upper leaves, and marked by the broad conspicuous scars of 2 minute lateral subfloral pubescent bracts; sepals nearly circular, ^' in diameter, ciliate on the margins, and covered on the outer surface with short lustrous silky pale hairs; petals obovate, crenulate on the margins, white, membranaceous, I'-l^' long, 1' broad, and densely coated on the outer surface with fine pubescence; fila- ments distinct, inserted on the petals; ovary conspicuously ridged, pubescent, trun- cate, and crowned with a slender deciduous style nearly as long as the stamens. Fruit globose, septicidally 5-valved from the base to the middle; seeds 6-8, or by abortion fewer in each cell, closely packed together on the whole length of the thick axile placenta, nearly i' long, angled by mutual pressure, without wings. A tree, 15°-20° high, with stout slightly angled dark red-brown branchlets cov- ered with small pale oblong horizontal lenticels, and conspicuously marked by large prominent obcordate leaf-scars, with a marginal row of large fibro-vascular bundle- scars. Winter-buds compressed, reddish brown, puberulous, y-^' long. Bark of cultivated plants smooth, thin, dark brown. Distribution. Near Fort Barrington on the Altamaha River, Georgia; not seen in a wild state since 1790, and now only known by cultivated plants. G80 TREES OF NORTH AMERICA Often cultivated in the eastern states and hardy as far north as Philadelphia, and occasionally in western and central Europe. XL. CANELLACEiE. Trees, with pungent aromatic bark, alternate pellucid-punctate entire penni- veined persistent leaves without stipules. Flowers perfect, regular, cymose ; sepals and petals imbricated in the bud ; stamens numerous, hypogynous, with filaments united into a tube inclosing the pistil, and narrow extrorse anthers adnate to the tube and longitudinally 2-oelled; pistil of 2-3 united carpels; ovary free, 1-celled, with 2-5 parietal placentas ; styles thick ; stigmas 2-5- lobed ; ovules 2 or many. Fruit a berry ; seeds 2 or several ; seed-coat thick, crustaceous ; embryo small in fleshy oily albumen. The Wild Cinnamon family with four genera and few species is confined to tropical America, south Africa, and Madagascar, a single species reaching the shores of southern Florida. 1. CANELLA, P. Br. A tree, with scaly bark, stout ashy gray branchlets conspicuously marked by large orbicular leaf-scars, and minute buds. Leaves obovate, rounded or slightly eniargi- nate at the apex, gradually narrowed to the cuneate base, petiolate, coriaceous. Flow- ers small, in many-flowered svibcorymbose terminal or subterminal panicles of sev- eral dichotomously branched cymes from the axils of upper leaves or from minute caducous bracts; sepals 3, suborbicular, concave, coriaceous, erect, their margins ciliate, persistent; petals 5, hypogynous, in a single row on the slightly convex receptacle, oblong, concave, rounded at the apex, fleshy, twice as long as the sepals, white or rose color; stamens about 20, staminal tube crenulate at the summit and slightly extended above the anthers; ovary cylindrical or oblong-conical, 1-celled. with 2 parietal placentas; style short, fleshy, terminating in a 2 or 3-lobed stigma; ovules numerous, arcuate, horizontal or descending, attached by short funi- cles, imperfectly anatropous; micropyle superior. Fruit globose or slightly ovate, fleshy, minutely pointed with the base of the persistent style, 2~4-seeded. Seeds reniform, suspended; seed-coat black and shining; embryo curved in the copious albumen; cotyledons oblong; radicle next the hilum. The genus consists of a single West Indian tree, extending into southern Florida and to Venezuela. The generic name is from canella, the diminutive of the Latin ca7ia or carina, a cane or reed, first applied to the bark of some Old World tree from the form of a roll or quill which it assumed in drying. 1. Canella Winterana, Gaertn. Cinnamon Bark. White Wood. Wild Cinnamon. Leaves contracted into short stout grooved petioles, 3V-5' long, l^'-2' wide, bright green and lustrous. Flo"wers about \' in diameter, opening in the autumn. Fruit ripening in March and April, bright crimson, soft and fleshy, ^' in diameter; seeds about ^^ long. A tree, in Florida 2o°-30° high, with a straight trunk 8'-10' in diameter, and slender horizontal spreading branches forming a compact round-headed top. Bark of the trunk \' thick, light gray, broken on the surface into numerous short thick scales rarely more than 2'-3' long and about twice as thick as the pale yellow aro- KCEBERLINIACE^ 681 matic inner bark. Wood very heavy, exceedingly hard, strong, close-grained, dark red-brown, with thick light brown or yellow sapwood of 25-30 layers of annual growth. The bitter acrid inner bark is the wild cinnamon bark of commerce. It has a pleasant cinnamon-like odor and is an aromatic stimulant and tonic. Distribution. In Florida common and widely distributed on the southern keys, usually growing in the shade of other trees. XLI. KCEBERLINIACEiB. An intricately branched almost leafless tree or shrub, with thin red-brown scaly bark, stout alternate glabrous branchlets covered with pale green bark and terminating in sharp rigid straight or slightly curved sjDines. Leaves mi- nute, early deciduous, alternate, narrowly obovate, rounded at the a23ex. Flowers perfect, on slender club-shaped puberulous pedicels from the axils of minute scarious deciduous bracts, in short umbel-like racemes below the ends of the branches ; calyx of 3 or 4 minute sepals imbricated in the bud, decidu- ous ; petals 4, convolute in the bud, hypogynous, obovate or oblong, subunguic- ulate, white, much longer than the sepals ; disk 0 ; stamens 8, free, hypogy- nous, as long as the petals ; filaments thickened in the middle, subulate at the ends ; anthers oval, attached on the back near the base, 2-celled, the cells opening longitudinally; ovary ovoid, 2-celled, contracted at the base into a short stalk and above into a simple subulate style ; stigma terminal, obtuse, slightly emarginate ; ovules numerous, adnate in several series to the fleshy placenta, horizontal or dependent, anatropous. Fruit a 2-celled berry, black at maturity, subglobose, tipped with the remnants of the pointed style ; flesh thin and succulent, the cells 1 or 2-seeded by abortion. Seed vertical, circinate- cochleate ; seed-coat crustaceous, slightly rugose, striate ; albumen thin ; embryo annular ; cotyledons semiterete ; the radicle ascending. The family is represented by a single genus. 1. KCEBERLINIA, Zucc. Characters of the family. Kceberlinia with one species is North American. The generic name is in honor of L. Koeberlin, a German botanist. 682 TREES OF NORTH AMERICA 1. Koeberlinia spinosa, Zucc. Leaves not more than y long. Flowers appearing in May and Jnne, about \' in diameter. Fruit ^^^'-^ in diameter. A bushy tree, rarely 20°-25° high, with a short stout trunk sometimes G°-8° long and a foot in diameter; more often a low branching shnib forming impenetrable thickets often of considerable extent. Wood very hard, heavy, close-grained, dark brown somewhat streaked with orange, becoming almost black on exposure, with thin yellow or nearly white sapwood of 12-15 layers of aimual growth. Distribution. Dry gravelly mesas and foothills; valley of the lower Rio Grande, Texas, westward to southern Arizona, and southward through northern Mexico. XLII. CARICACE^. Trees or shrubs, with bitter milky juice, alternate long-petiolate persistent simple or digitatoly compound leaves, without stipules. Flowers unisexual or })erfect, the perianth of the male and female flowers dissimilar ; stamens in two series, inserted on the corolla ; -filaments free ; anthers introrse. Fruit baccate. The Pawpaw family with two genera is tropical American and Mexican, a single representative of one of the genera reaching the shores of southern Florida. 1. CARICA, L. Short-lived trees, with erect simple or rarely branched stems composed of a thin shell of soft fibrous wood surrounding a large central cavity divided by thin soft cross partitions at the nodes, covered with thin green or gray bark marked by the ring-like scars of fallen leaf-stalks, and stout soft fieshj^ roots. Leaves simple, pal- mately lobed or digitate, crowded toward the top of the stem and branches, large, flaccid, subpeltately palmately nerved, and usually deeply and often compoundly lobed. Flowers regular, monoecious or polygamo-dicecious, white, yellow, or greenisli white, in axillary cymose panicles, the staminate elongated, pedunculate, and many- flowered, the pistillate abbreviated and few or usually 3-flowered, generally unisex- ual and dioecious, occasionally polygamo-dicecious, each flower in the axil of a minute CARICACE^ 683 ovate acute bract; calyx minute, 5-lobed, the lobes alternate with the petals; corolla of the staminate flower salverform, ganiopetalous, the tube elongated, o-lobed, the lobe oblong or linear, contorted in the bud; stamens 10; filaments free, those of the outer row alternate with the lobes of the corolla and elongated, the others alter- nate with them and abbreviated; anthers 2-celled, erect, opening longitudinally, often surmounted by their slightly elongated connective; ovary rudimentary, sub- ulate; pistillate flower, calyx minute, o-lobed, persistent under the fruit; corolla polypetalous, petals 5, linear-oblong, erect, ultimately spreading above the middle, deciduous; ovary free, sessile, 1-celled or more or less spuriously 5-celled; style 0 or abbreviated; stigmas 5, linear, radiating, dilated and subpalmately lobed at the apex; ovules indefinite, inserted in two rows on the placenta, anatropous, long- stalked; micropyle superior; raphe ventral; hermaphrodite flower, corolla gamo- petalous, tubular-campanulate, the lobes erect and spreading or subreflexed; stamens 10, in 2 ranks, or 5; ovary obovoid-oblong, longer than the tube of the corolla, more or less spuriously 5-celled below. Fruit slightly 5-lobed, 1-celled or more or less completely 5-celled, filled with soft pulp, many-seeded, that produced from the hermaphrodite flowers long-stalked, pendulous, usually unsymmetrical, gibbous, and smaller than that from the pistillate flowers. Seeds ovoid, inclosed in membrana- ceous silvery white sac-like arils, occasionally germinating within the fruit; seed- coat crustaceous, closely investing the membranaceous inner coat, the outer coat becoming thick, rugose, succulent, and ultimately dry and leathery; embryo in the axis of fleshy albumen; cotyledons ovate, foliaceous, compressed, longer than the terete radicle turned toward the minute pale subbasilar hilum. Carica with about twenty species is distributed from southern Florida through the West Indies to southern Brazil and Argentina, and from southern Mexico to Chili One species grows probably indigenously in Florida. The milky juice of Carica contains papain, which has the power of digesting albuminous substances, and the leaves are often used in tropical countries to make meat tender. The generic name is formed from the Carib name of one of the species. 1. Carica Papaya, L. Pawpa-w. Leaves ovate or orbicular, deeply parted into 5-7 lobes divided more or less deeply into acute lateral lobes, these secondary divisions entire or rarely lobed, the lowest lobes forming a deep basal sinus, thin, flaccid, yellow-green, 15'-24' in diameter, with broad flat yellow or orange-colored primary veins radiating from the end of the petiole through the lobes, and small secondary veins extending to the points of the lateral lobes and connected by conspicuous reticulate veinlets; their petioles stout, yellow, hollow, enlarged and cordate at the base, sometimes becoming 3°-4° long before the leaves fall. Flowers often beginning to appear on plants only 3° or 4° high and a few months old, producd continuously through- out the year, staminate in clusters on slender spreading or pendulous peduncles 4''-12' long, pistillate in 1-3-flowered short-stalked cymes; staminate flowers fra- grant, filled with nectar, their corolla f -1^' long, with a slender tube and acute lobes; anthers oblong, orange-colored, surmounted by the rounded thickened end of the connective, those of the inner row almost sessile and one third larger than those of the outer row, shorter than their flattened filaments covered, like the connectives, with long slender white hairs; pistillate flowers about 1' long, with erect petals, with- out staminodia; ovary ovoid, ivory-white, slightly and obtusely 5-angled, 1-celled, and narrowed into a short slender style crowned by a pale green stigma divided to the 684 TREES OF NORTH AMERICA base into 5 radiating lobes dilated and 3-ncrved at the apex. Fruits banging close together against the stem at the base of the leaf-stalks, obovate, ellipsoidal and obtnsely short-pointed, yellowish green to bright orange color; in sonthern Florida not more than 4' long and 'S thick, and nsually smaller, with a thick skin closely adherent to the sweet insipid flesh forming a thin layer ontside the central cavity; seeds fnll and ronnded, abont ^^' long; outer portion of the seed-coat rugose at first when the fruit is fully grown but still green, ivory-white, very succulent, and usually separable from the smooth paler chestnut-brown lustrous interior portion, the outer part turning black as the fruit ripens and becoming adherent to the inner portion closely investing the thin lustrous light red-brown inner coat. A short-lived tree, in Florida attaining a height of 12°-15°, with a trunk seldom more than 6' in diameter; in the West Indies and other tropical countries often twice as large, with a trunk occasionally dividing into a number of stout upright branches. Bark thin, light green, becoming gray toward the base of the stem. Distribution. Florida from the southern shores of Bay Biscayne on the west coast and Indian River on the east coast to the southern keys, growing sparingly in rich hummocks; common in all the West Indian islands, in southern Mexico, and in the tropical countries of South America; now naturalized in most of the warm regions of the world, where it is universally cultivated for its fruit, which is consid- ered one of the most wholesome of all tropical fruits, and has been much improved by selection. B. Ovary inferior (^partly inferior in RhizopTior'a) , XLIII. CACTACEiE. Siicculent trees or shrubs, with copious watery juice, numerous spines spring- ing from cushions of small bristles {areola}), and minute caducous alternate leaves, or leafless. Flowers large and showy, perfect, usually solitary ; calyx of numerous spirally imbricated sepals forming a tube, those of the inner series petal-like ; corolla of numerous imbricated petals, in many series ; stamens inserted on the tube of the calyx, very numerous, in several series, with slender filaments and introrse 2-celled oblong anthers, the cells opening longitudinally ; CACTACE^ 685 pistil of several united carpels ; ovary 1-cellecl, with several parietal placentas ; styles united, terminal ; stigmas as many as the placentas ; ovules numerous, horizontal, anatropous. Fruit a fleshy berry. Seeds numerous, with albumen ; cotyledons foliaceous ; radicle turned toward the hilum. The Cactus family with twenty genera and a very large number of species is most abundant in the dry region adjacent to the boundary of the United States and Mexico, with a few species ranging northward to the northern United States and southward to the West Indian islands, Brazil, Peru, and the Galapagos Islands. Two of the genera have arborescent representatives in the flora of the United States. CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES. Branches and stems columnar, ribbed, continuous ; leaves 0 ; flower-bearing- and spine- bearing- areolfe distinct ; flowers close above spine-bearing areolae ; tube of the flower elongated; seeds dark-colored. 1. Cereus. Branches jointed, tuberculate ; leaves scale-like ; flower-bearing and spine-bearing areolae not distinct ; tube of the flower short and cup-shaped ; seeds pale. 2. Opuntia. 1. CEREUS, Haw. Trees or shrubs, with columnar ribbed stems, and buds on the back of the ridges from the axils of latent leaves, geminate, superposed, the upper producing a brancli or flower, the lower arrested and developed into a cluster of spines surrounded by an elevated cushion or areola of chaffy tomentose scales. Flowers lateral, elongated, the calyx lobes forming an elongated tube, those of the outer ranks adnate to the ovary, scale-like, only their tips free, those of the inner ranks free, elongated 'petals cohering by their bases with the top of the calyx-tube, larger than its interior lobes, spreading, recurved ; stamens numerous; filaments adnate by their base to the tube of the calyx, those of the interior ranks free, the exterior united into a tube ; style filiform, divided into numerous radiating linear branches stigmatic on the inner face; stalks of the ovules long and slender, becoming thick and juicy in the fruit. Seeds with very thin albumen; embryo straight; cotyledons abbreviated, hooked at the apex; radicle conical. Cereus with about two hundred species inhabits the dry southwestern region of North America, the West Indies, tropical South America, and the Galapagos Islands. Of the numerous species found within the territory of the United States only one assumes the habit and size of a tree. The fruit of several species is edible, and the ribs of the durable woody frames of the stems of the large arborescent species are used for the rafters of houses and for fuel. Many of the species are planted in warm dry countries in hedges to protect cultivated fields, and others are popular garden plants valued for their beautiful flowers, which are sometimes nocturnal and exceedingly fragrant. The generic name relates to the candle-like form of the stem of some of the species. 1. Cereus giganteus, Engelm. Su-warro. Leaves 0. Flowers 4'-4^' long and 21' wide, opening from May to July in great numbers near the top of the stem, each surrounded on the lower side by the radial spines of the cluster below it; ovary ovoid, 1' long, rather shorter than the stout tube of the flower, and covered, like the base of the tube, by the thick imbricated green outer scale-like sepals, with small free triangular acute scarious mucronate 686 TREES OF NORTH AMERICA tips, furnished in their axils with short tufts of rufous hairs and occasionally with clusters of chartaceous spines, gradually passing into thin oblong ovate or obovate larger sepals, niucronate or rounded at the apex and closely imbricated in many ranks; petals 25-35. obovate-spatulate, obtuse, entire, thick and fleshy, creamy white, I' long and much reflexed after anthesis; stamens, with linear anthers emarginate at the ends, and filaments united for half their length to the walls of the calyx-tube, those of the exterior rows joined below into a long tube, surrounding the stout col- umnar style glandular at the base and divided at the apex into 12-15 green stigmas. Fruit ripening in August, ovate or slightly obovate, 2^' long, 1^' wide, truncate and covered at the apex by the depressed pale scar left by the falling of the flower, light red at maturity, separating into 3 or 4 fleshy valves bright red on their inner sur- face and inclosing the bright scarlet juicy mass of the enlarged funiculi and innu- merable seeds; seeds obovate, rounded, ^' long, lustrous, dark chestnut-brown. A tree, 50°-60° high, with a trunk sometimes 2° in diameter, thickest below the middle and tapering gradually toward the ends, marked by transverse superficial lines into rings 4'-8' long, representing the amount of longitudinal growth, 8-12- ribbed at the base, with obtuse ribs 4'-5' broad, and at the summit 18-20-ribbed, with obtuse deep compressed ribs, branchless or furnished above the middle with a few, usually 2 or 3, stout alternate or sometimes opposite upright branches shorter but otherwise resembling the principal stem composed of a thick tough green epidermis, a fleshy covering 3'-6' thick saturated with bitter juice, and a circle of bundles of wood fibres making, with annual layers of exogenous growth, dense tough elastic columns placed opposite the depressions between the ribs, ^'-3' in diameter and fre- quently united by branches growing at irregular intervals between them, the woody frame remaining standing after the death. of the plant and the decomposition of its fleshy covering. Areolae pale, elevated, about 1' in diameter, bearing clusters of stout straight spines with large dark fulvous bases, sulcate or angled, tinged with red, with thick stout spines in the centre of each cluster, the lowest 4 horizontal or slightly inclined downward, the lowest being the longest and stoutest and some- times 11' long and ^L' thick, the upper shorter, more slender and slightly turned upward, with a row of shorter and thinner radial spines 12-16 in number surrounding the central group. Wood of the columns strong, very light, rather coarse-grained, CACTACE^ 687 with numerous conspicuous medullary rays, and light brown tinged with yellow; almost indestructible in contact with the ground, little affected by the atmosphere and largely used for the rafters of houses, for fences, and by Indians for lances, bows, etc. The fruit is consumed in large quantities by Indians. Distribution. Low rocky hills and dry mesas of the desert; valley of Bill Wil- liams River through central and southern Arizona to the valley of the San Pedro River, and southward in Sonora. 2. OPUNTIA, Adans. Trees or usually shrubs, in the arborescent species of the United States with sub- cylindrical or clavate articulate tuberculate branches, covered with small sunken sto- mata, and containing tubular reticulated woody skeletons, and thick fleshy or fibrous roots. Leaves scale-like, terete, subulate, caducous, bearing in their axils oblong or circular cushion-like areolae of chaffy or woolly scales terminal on the branches and furnished above the middle with many short slender slightly attached sharp barbed bristles and toward the base with numerous stout barbed spines surrounded in some species, except at the apex, by loose papery sheaths. Flowers diurnal, lat- eral, produced from areolae on branches of the previous year between the bristles and spines, sessile, cup-shaped; sepals fiat, erect, deciduous; corolla rotate; petals obovate, united at the base, spreading; stamens shorter than the petals; filaments free or slightly united below; anthers oblong; style cylindrical, longer than the stamens, obclavate below, divided at the apex into 3-8 elongated or lobulate lobes stigmatic on the inner face. Fruit sometimes proliferous, covered by a thick skin, succulent and often edible, or dry, pyriform, globose or elliptical, concave at the apex, surmounted by the marcescent tube of the flower, tuberculate, areolate, or rarely glabrous, truncate at the base, with a broad umbilicus at the apex. Seeds immersed in the pulpy placentas, compressed, discoid, often margined with a bony raphe; testa pale, bony, sometimes marked by a narrow darker marginal commissure; embryo coiled around the copious or scanty albumen; cotyledons large; radicle thin, obtuse. Opuntia with about one hundred and thirty species is distributed from southern New England southward in the neighborhood of the coast to the West Indies, and through western North America to Chili, Brazil, and Argentina, the largest number of species occurring near the boundary of the United States and Mexico. Of the species of the United States three attain the size and habit of small trees. Cochineal is derived from a scale-insect which feeds on the juices of some of the Mexican species, and the fruit of several species is refreshing and is consumed in considerable quantities in semitropical countries. The large-growing species with flat branches are employed in many countries to form hedges for the protection of gardens and fields; and the branches saturated with watery juice are sometimes stripped of their spines and bristles and fed to cattle. Opuntia is the classical name of some plant which grew in the neighborhood of the city of Opus in Bceotia. CONSPECTUS OF THE ARBORESCENT SPECIES OF THE UNITED STATES. Tubercles of the branches full and rounded below the areolae. Joints pale olive color, easily separable, their tubercles broad, mammillate ; spines yel- low ; flowers pink ; fruit proliferous, usually spineless, often sterile. 1. O. fulgida (H). 688 TREES OF NORTH AMERICA Joints green or purple, their tubercles narrow, ovate ; spines white to reddish hrown ; flowers purple ; fruit yellow, sparingly spinescent, rarely proliferous. 2. O. spinosior (H). Tubercles of the branches not full and rounded below the areolae ; joints elongated, dark g-reen or purple, their tubercles elongated ; spines brown or reddish brown ; flowers g-reen, tinted with red or yellow ; fruit green, spinescent, rarely proliferous. 3. O. versicolor (H). I 1. Opuntia fulgida, Eugelm. Cholla. Leaves light green, gradually narrowed to the acuminate apex, ^'-1' long. Flowers appearing from June to September, the earliest from tubercles at the ends of the branches of the previous year, the others from the terminal tubercles of the immature fruit developed from the earliest flowers of the season, 1' in diameter when fully expanded, with ovaries nearly V long, 8-10 obtuse crenulate sepals, 5 erect stigmas, and 8 light pink petals, those of the outer ranks cuneate, retuse, crenu- late on the margins, shorter than the lanceolate acute petals of the inner ranks, the whole strongly reflexed at maturity. Fruit proliferous, oval, rounded, I'-l^' long and nearly as broad, more or less tuberculate, conspicuously marked by large pale tomentose areolae bearing numerous small bristles, usually spineless or occasionally armed with small weak spines, hanging in pendulous clusters usually of 6 or 7 and occasionally of 40-50 fruits in a cluster, one growing from the other in continuous succession, the first the largest and containing perfect seeds, the others frequently sterile, dull green when fully ripe, with dry flesh, falling usually during the first winter or occasionally persistent on the branches during the second season, and then developing flowers from the tubercles; seeds compressed, thin, very angular, J^'-l' in diameter. A tree, with a more or less flexuous trunk occasionally 12° in height and some- times a foot in diameter, a symmetrical head of stout wide-spreading branches and thick pendulous joints sometimes almost hidden by the long conspicuous spines and beginning to develop their woody skeletons during their second or occasionally during their third season, the terminal or ultimate joints ovate or ovate-cylindrical, tumid, crowded at the ends of the limbs, pale olive color, 3'-8' long, often 2' in diameter, with broad ovate-oblong tubercles, ^'-f long. Areolae of pale straw-colored CACTACE^ 689 tomentum and short slender pale bristles, each areola bearing at first 5-15 stout stellate-spreading light yellow spines of nearly equal length, f -1' long and inclosed in loose lustrous sheaths, additional spines developing in succeeding years at the upper margins of the areolae, the tubercles of old branches being sometimes furnished with from 40-60 spines persistent on the branches for 4-6 years. Bark of the trunk and of the large limbs about ^' thick, separating freely on the surface into large thin loosely attached scales varying in color from brown to nearly black on the largest stems, and unarmed, the spines mostly falling with the outer layers from branches 3'-4' thick. Wood of old trunks light, hard, pale yellow, with broad conspicuous medullary rays, well marked layers of annual growth, and a thick pith. Distribution. Plains of Arizona south of the Colorado plateau, and in the adja- cent region of Sonora; not rare; apparently most abundant and of its largest size on the mesas near Tucson, at elevations between 2000° and 3000° above the sea. 2. Opuntia spinosior. Tourney. Tassajo. Leaves terete, tapering gradually to the setulose apex, about 1' long, remaining on the branches four to six weeks. Flowers opening in April and May and remain- ing open for two or three days, 2'-2i' in diameter, with ovaries about 1' long, obovate sepals, broadly obovate dark purple petals, sensitive red stamens, and a 6-9-parted stigma. Fruits clustered at the ends of the branches of the previous year, persistent on the branches during the winter and occasionally during the following summer and then sometimes proliferous, oval or rarely globose or hemispherical, frequently 2' long and 1|' thick, with yellow acrid flesh and 20-30 tubercles very prominent during the summer, nearly disappearing as the fruit ripens and enlarges, leaving ^6o J it marked only by the small oval areolae covered with short bristlfes, and bearing numerous slender spines deciduous in December as the fruit begins to turn yellow; seeds nearly orbicular, slightly or not at all beaked, ^'-\' in diameter, and marked by linear conspicuous commissures. A tree, with an erect trunk occasionally 10° high and 5'-10' in diameter, numerous stout spreading limbs forming an open irregular head, and branches with joints 4'- 12' long, ^'-V thick, covered with a thick- epidermis varying from green to purple and usually developing woody skeletons during their second season, their tubercles prominent, compressed, ovate, ^'—^' long. Areolae oval, clothed with pale tomentum 690 TREES OF NORTH AMERICA and short light brown bristles, their spines 5-15 on the tubercles of young joints and 30-50 on those of older branches, and slender, white to light reddish brown, closely invested in white glistening sheaths, stellate-spreading, ^'-f long, those in the interior sometimes considerably longer than the radial spines. Bark of the trunk and of the larger limbs about \' thick, spineless, nearly black, broken into elongated ridges, and finally much roughened by numerous closely appressed scales. Wood light, soft, pale reddish brown, and conspicuously reticulate, with conspicuous medullary rays and well defined layers of annual growth; sometimes used in the manufacture of light furniture, canes, picture-frames, and other small articles. Distribution. Widely scattered over the mesas of southern Arizona south of the I Colorado plateau and over the adjacent regions of Sonora. 3. Opuntia versicolor, Coult. Leaves terete, abruptly narrowed to the spinescent apex, ^'-^' long, persistent on the branches four to six weeks. FloAvers opening in May, about 1^' in diameter. fK J6i with ovaries I' long, broadly ovate acute sepals, and narrow obovate petals rounded above and green tinged writh red or with yellow. Fruit usually clavate, 2'-2^' lowg> nearly 11' in diameter, with areolae generally only above the middle and usually furnished with 1-3 slender reflexed persistent spines about ^' long, or occasionally spineless, rarely nearly spherical and only about f in diameter, ripening from De- cember to February, and at maturity the same color as the joints on which it grows, usually withering, drying, and splitting open on the tree, or remaining fleshy and persistent on the branches until the end of the following summer, and sometimes through a second winter, or often becoming imbedded in the end of a more or less elongated joint; seeds irregularly angled, with narrow commissures. A tree, with an erect trunk occasionally 6°-8° high and 8' in diameter, numerous stout irregularly spreading often upright branches, and cylindrical terminal joints generally 6'-12' but sometimes 2° in length, f '-1' in diameter, covered with a thick dark green or purple epidermis, marked by linear flattened tubercles, their woody skeletons usually formed during their second season. Areolae large, oval, clothed with gray wool, generally bearing a cluster of small bristles, and slender stellate- spreading brown or reddish brown spines, with close early deciduous straw-colored RHIZOPHORACE^ 691 sheaths, 4-14 and on old tubercles 20-25 in number, the inner 1-4 in number, usu- ally deflexed and unequal in length, the longest about ^' long and longer than the radial spines. Bark of the trunk and of the large branches smooth, light brown or purple, usually unarmed, ^'—|' thick, finally separating into small closely ap- pressed black scales. Wood reticulate, hard, compact, light reddish brown and rather lustrous, with thin conspicuous medullary rays, well-defined layers of annual growth, and thick pale or nearly white sapwood. Distribution. Foothills and low mountain slopes of southern Arizona and northern Sonora; very abundant. XLIV. RHIZOPHORACE.ffl. Glabrous trees or shrubs, with terete branchlets, and usually opposite cori- aceous entire persistent leaves with interpetiolar stipules. Flowers in axillary clusters; calyx-lobes valvate in the bud, persistent; petals inserted on the tube of the calyx and as many as its lobes ; stamens inserted at the base of a conspicuous disk ; anthers 2-celled, the cells opening longitudinally ; pistil of 2-5 united carpels ; ovary 2-5-celled ; ovules usually 2 in each cell, suspended from its apex, collateral, anatropous ; raphe ventral ; micropyle superior. Fruit usually indehiscent, 1-celled and 1-seeded. The Mangrove family is tropical, with most of its fifteen genera confined to the Old World, one species of the widely distributed Rliizophora reaching the shores of southern Florida. 1. RHIZOPHORA, L. Mangrove. Trees, with pithy branchlets, thick astringent bark, and adventitious fleshy roots. Leaves ovate or elliptical, glabrous, petiolate; stipules elongated, acuminate, in- folding the bud, caducous. Flowers perfect, yellow or creamy white, sessile or pedicellate, bibracteolate, the bractlets united into an involucral cup, in pedunculate (lichotomously or trichotomously branched clusters, the base of their branches sur- rounded by an involucre of 2 ovate 3-lobed persistent bracts, or 1-flowered; calyx 4-Iobed, the lobes acute, coriaceous, ribbed on the inner surface and thickened on the margins, two or three times longer than the turbinate globose tube, reflexed at ma- turity, persistent; petals 4, induplicate in the bud, alternate with and longer than the calyx-lobes, inserted on a fleshy disk-like ring in the mouth of the calyx-tube, involute on the margins, coated on the inner surface with long pale hairs, or flat and naked, caducous; stamens 8-12; filaments short or 0; anthers attached at the base, introrse, elongated, connivent, areolate; ovary partly inferior, conical, 2-celled, contracted into two subulate spreading styles stigmatic at the apex. Fruit a conical coriaceous berry surrounded by the reflexed calyx-lobes and perforated at the apex by the germinating embryo. Seed germinating in the fruit before falling, the apex surrounded by a thin albuminous cup-like aril; seed-coat thick and fleshy; embryo surrounded by a thin layer of albumen; cotyledons dark purple; radicle elongated, clavate, and when fully grown separating from the narrow exserted woody tube inclosing the plumule and developed from the cotyledons after the ripening of the fruit. Rhizophora with three species is widely and generally distributed on the shores of tidal marshes in the tropical regions of the two hemispheres. It possesses astrin- gent properties; the bark has been used in tanning leather, in dyeing, and as a 692 TREES OF NORTH AMERICA febrifuge. The wood is hard, durable, and dark-colored. By means of the aerial germination of its seeds and in its power to develop roots from trunks and branches, liliizophora is especially adapted to maintain itself on low tidal shores and is an important factor in protecting and extending them into the ocean. Roots springing from the stems at a considerable distance above the ground and arching outward descend into the water and fix themselves in the mud beneath, while roots growing down from the branches enter the ground and gradually thicken into stems. The fully grown radicle ready to put forth roots and leaves, and often 10'-12' long, is thicker and heavier at the root end than at the other, and in detaching itself from the cotyledons and in falling the heavy end sticks in the mud, while the plumule at the other end, held above the shallow surface of the water, soon unfolds its leaves. The generic name, from piCa and (pepeiv, was used by early authors to designate various climbing plants with thickened roots. 1. Rhizophora Mangle, L. Mangrove. Leaves oval or elliptical, rounded or acute at the apex, gradually narrowed at the base, dark green and very lustrous on the upper, paler on the lower surface, 3^'-5' long, l'-2' wide, with slightly thickened margins, broad midribs, and reticulate vein- lets, persistent for one or two years; their petioles ^'-1^ long; stipules lanceolate, acute, 1^' long, deciduous as the leaf unfolds. Flo'wers produced throughout the year from the axils of young leaves, 1' in diameter, on stout 2 or 3-branched pedun- cles l^'-2' long, with pale yellow petals coated on the inner surface with long pale hairs, 8 stamens, and villose filaments. Fruit 1' long, rusty brown, slightly rough- ened with minute bosses, the hard woody thick-walled tube developed from the cotyledons protruding |'-f' from its apex after the germination of the seeds, cov- ering the plumule, and holding the dark brown radicle marked with occasional orange-colored lenticels and when fully grown 10'-12' long and \'-~^' thick near the apex. A round-topped bushy tree, with spreading branches usually 15°-20° high, form- ing almost impenetrable thickets with its numerous aerial roots or occasionally 70^- 80° high, with a tall straight trunk clear of branches for more than half its length, a narrow head, and stout glabrous dark red-brown branchlets, becoming lighter colored in their second year and then conspicuously marked by large oval slightly elevated MYKTACE^ 693 leaf-scars. Bark of young stems and of the branches smooth, light reddish brown, becoming on old trunks ^'-^' thick, and gray faintly tinged with red, the surface irregularly fissured and broken into thin appressed scales. Wood exceedingly heavy, hard, close-grained, strong, dark reddish brown streaked with lighter brown, with pale sap wood of 40-50 layers of annual growth; used for fuel and wharf -piles. Distribution. Shores of Florida from Mosquito Inlet on the east coast and Cedar Keys on the west coast to the southern islands ; most abundant south of latitude 29°, following the coast with wide thickets and ascending the rivers for many miles; on Cape Sable and the shores of Bay Biscayne sometimes growing at a little distance from the coast on ground not submerged by the tide, and here attaining its largest size, with tall straight trunks producing few aerial roots; also on Bermuda, the Bahamas, the Antilles, the west coast of Mexico, lower California, the Galapagos Islands, and from Central America along the northeast coast of South America to the limits of the tropics. XLV. MYRTACEiE. Trees or slirubs, abounding in pungent aromatic volatile oil, with minute scaly buds. Leaves opposite, simple, mostly entire, pellucid-punctate, penni- veined, persistent, the slender obscure veins arcuate and united within the thickened revohite margins ; stipules 0. Flowers perfect, regular ; calyx 4-5-lobed, the lobes imbricated in the bud, or lid-like and deciduous ; petals 2-5, imbricated in the bud, inserted on the margin of the disk, or 0 ; stamens very numerous, inserted in many ranks with the petals ; filaments slender, inflexed in the bud, exserted ; anthers introrse, 2-celled, the cells opening longitudinally ; ovary 2-4-celled ; style simple, filiform, crowned with a minute stigma ; ovules numerous or 2 or 3 in each cell, attached on a central placenta, anatropous or semianatropous ; raphe ventral ; micropyle superior. Fruit bac- cate, crowned wdth the persistent calyx-lobes, 1-4-seedecl. Seeds without albumen ; seed-coat membranaceous. The Myrtle family with seventy-two genera is chiefly tropical and Aus- tralasian, with representatives in southern Europe, extratropical Africa, and extratropical South America. Three genera are represented by small trees in the flora of southern Florida. To this family, beside the Myrtle, belong the Australian Eucalypti, large and important timber-trees largely planted in Cali- fornia, and the Guava, cultivated in Florida for its fruit. CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES. Calyx 4 or 5-lobed, with persistent lobes ; petals 4 or 5, Flowers in axillary racemes or fascicles. 1. Eugenia. Flowers in mostly dichotomoiisly branched cymes. 2. Anamomis. Calyx closed in the bud by an orbicular lid-like deciduous limb ; petals 0. 3. Chytraculia. 1. EUGENIA, L. Trees or shrubs, with hard durable wood and scaly bark. Flowers often large and conspicuous, on short bibracteolate pedicels, in axillary racemes or fascicles, with minute caducous bracts and bractlets; calyx campanulate, scarcely produced above the ovary, the limb 4 or rarely 5-lobed; petals usually 4, free and spreading; ovary 2 or rarely 3-celled; ovules numerous in each cell, semianatropous. Fruit 1-4-seeded, Seeds globose or flattened; seed-coat membranaceous or cartilaginous; embryo thick 694 TREES OF NORTH AMERICA and flesh}'; cotyledons thick, more or less conferruniinate into a homogeneous mass; radicle very short, turned toward the hilum. Eugenia with some five hundred species is common in all tropical regions, with five species reaching the shores of southern Florida; of these four are small trees. Several species are valued for their stimulant and digestive properties; some pro- duce useful timber or edible fruit, and others are cultivated for the beauty of their flowers. Cloves are the flower-buds of Eugenia aromatica, Baill., a native of the Molucca Islands; and Eugenia Jamhos, L,, the Rose Apple, of southeastern Asia, is cultivated in all tropical countries as a shade-tree and for its delicately fragrant friut. The generic name commemorates the interest in botany and gardening taken by Prince Eugene of Savoy, who built the Belvidere Palace near Vienna in the begin- ning of the eighteenth century, and made a collection of rare plants in its gardens. CONSPECTUS OF THE ARBORESCENT SPECIES OF THE UNITED STATES. Flowers in short solitary or clustered axillary racemes. Leaves ovate or obovate, rounded at the apex, short-petiolate ; fruit subglobose to short- oblong', black, \' in diameter. 1. E. buxifolia (D). Leaves ovate, contracted at the apex into broad points, distinctly petiolate ; fruit globose, black, J' in diameter. 2. E. axillaris (D). Flowers in axillary fascicles. Leaves usually broadly ovate, narrowed at the apex into short points, subcoriaceous ; fruit subglobose, rather broader than hig-h, f'-l' in diameter, becoming black at maturity. 3. E. rhombea (D). Leaves ovate-oblong, narrowed at the apex into long points, coriaceous ; fruit subglobose to obovate, \'-^' long, bright scarlet. 4. E. confusa (D). 1. Eugenia buxifolia, Willd. Gurgeon Stopper. Spanish Stopper. Leaves ovate or obovate, rounded at the apex, sessile or narrowed into short thick petioles, occasionally slightly and remotely crenulate-serrate above the middle, thick A and coriaceous, dark green on the upper, yellow-green and marked with minute black dots on the lower surface, I'-l^' long and about V broad, with narrow conspicuous midribs, usually' unfolding in November and remaining on the branches until the. MYRTACE^ 695 end of their second winter, and often turning red or partly red before falling. Flowers appearing in Florida from midsummer until early autumn, i' in diameter, on short thick pedicels, in short rufous pubescent racemes clustered in the axils of old or fallen leaves, with minute lanceolate acute persistent bracts, and broadly ovate acute bractlets immediately below the flowers; calyx glandular-punctate, pubescent on the outer surface, with 4 ovate rounded lobes much shorter than the 4 ovate white petals rounded at the apex, ciliate on the margins, and glandular-punctate. Fruit subglobose to short-oblong, black, glandular-roughened, crowned with the large calyx-lobes, usually 1-seeded and about ^' in diameter, with thin aromatic flesh; seeds ^' in diameter, with a thick pale brown lustrous cartilaginous coat and a pale olive-green embryo. A shrubby tree, in Florida rarely 20° high, with a short trunk occasionally a foot in diameter, small mostly erect branches, and terete slender branchlets coated at first with rufous pubescence, becoming at the end of a few months ashy gray or gray tinged with red, and often more or less twisted or contorted. Bark of the trunk rarely more than ^' thick, light brown tinged with red, and broken into small thick square scales. Wood very heavy, exceedingly hard, strong, close-grained, dark brown shaded with red, with thick lighter colored sapwood of 15-20 layers of annual growth; sometimes used for fuel. Distribution. Cape Canaveral to the southern keys, and from the banks of the Caloosa River to Cape Sable, Florida; one of the commonest plants on the keys, forming on the coral rock a large part of the shrubby second growth now occupying ground from which the original forest has been removed; also on the Bahamas and on several of the Antilles. 2. Eugenia axillaris, Willd. Stopper. White Stopper. (^Eugenia monticola, Silva N. Am. v. 45.) Leaves ovate, gradually or abruptly narrowed at the apex into short wide points, rounded at the narrowed base, thick and coriaceous, dark green on the upper, paler and covered with minute black dots on the lower surface, li'-2^' long, 1' wide, witli broad midribs deeply impressed above; their petioles stout, slightly winged, about y long. Flo-wers appearing at midsummer, about i' in diameter, on stout pedicels 696 TREES OF NORTH AMERICA YQ'~k' long, covered with pale white hairs, and furnished near the middle or toward the apex with 2 acute minute persistent bractlets, in short axillary racemes; calyx, glandular-punctate, covered on the outer surface with pale hairs, 4-lobed, with ovate rounded lobes shorter than the 4 ovate glandular white petals. Fruit ripening in succession from November to April, globose, black, glandular-punctate, usually 1-seeded, ^' in diameter, edible, rather juicy, with a sweet agreeable flavor; seeds subglobose, ^' in diameter, with a pale brown chartaceous coat and light olive-green cotyledons. A tree, 20°-25° high, with a trunk occasionally a foot in diameter, small branches, and terete stout rigid ashy gray branchlets often slightly tinged with red and covered with small wart-like excrescences; or toward the northern limits of its range a low shrub. Bark of the trunk about ^' thick and divided by irregular shallow fissures into broad ridges finally separating on the surface into small thin light brown scales. Wood heavy, hard, strong, very close-grained, brown often tinged with red, with thin darker colored sapwood of 5-6 layers of annual growth. Distribution. Shores of the St. John's River to the southern keys, Florida; nowhere common; on the Bahamas and on several of the Antilles. 3. Eugenia rhombea, Kr. & Urb. Stopper. {Eugenia procera, Silva N. Am. v. 47.) Leaves broadly ovate, narrowed into broad points rounded at the apex, and abruptly or gradually narrowed and cuneate at the base, when they unfold thin and light red, and at maturity subcoriaceous, conspicuously marked with black dots, olive-green on the upper and paler on the lower surface, 2'-2^' long and I'-l^' wide, with narrow midribs, unfolding in Florida in May; their petioles narrow-winged, ^'-\' long. Flowers \' in diameter, appearing in Florida in April or May on slender glandular pedicels \'-^' long and furnished at the apex with 2 lanceolate acute per- sistent bracts ciliate on the margins, in sessile axillary many-flowered clusters; calyx- tube, much shorter than the limb, divided into 4 glandular narrow lobes rounded at the apex and one half the length of the broadly ovate rounded glandular white petals. Fruit ripening in Florida from September to November, §'-!' in diameter, slightly glandular-roughened, orange color, with a bright red cheek when fully grown, be- MTRTACEiE 697 coming black at maturity; flesh thin and dry; seeds almost globose, nearly^' in diameter, with a thick pale chestnut-brown lustrous coat and olive-green cotyledons. A tree, 20°-25° high, with a trunk usually a foot in diameter, small branches, and slender terete branch! ets at first light purple and covered with a glaucous bloom, becoming ashy gray or almost white. Bark of the trunk about jY tbick, with a smooth light gray surface slightly tinged with red. Wood heavy, hard, close- grained, light brown, with hardly distinguishable sapwood. Distribution. Key West and Umbrella Key, Florida; on the Bahamas and on many of the Antilles. 4. Eugenia confusa, DC. Red Stopper. {Eugenia Garberi, Silva N. Am. v. 49.) Leaves ovate-oblong, abruptly or gradually contracted into long narrow points rounded or acute at the apex, wedge-shaped or occasionally rounded at the base, thin and light red when they unfold, and at maturity dark green and very lustrous on the upper, paler and marked with minute black dots on the lower surface, l^'-2' I fc long, I'-f' wide, with thick orange-colored midribs barely impressed above and prominent reticulate veinlets; their petioles stout, about Y long. Flo"wers barely ^ in diameter, appearing in September on slender pedicels j-^' long and furnished nfear the apex with 2 minute acute bractlets, in many-flowered axillary clusters; calyx glandular-punctate, with 4 ovate acute lobes much shorter than the 4 broadly ovate rounded white petals. Fruit ripening in March and April, subglobose to obo- vate, bright scarlet, \'~^' long, glandular-roughened, usually solitary and 1-seeded, with thin dry flesh; seeds nearly globose, about ^ in diameter, with a thin crusta- ceous light brown lustrous coat and an olive-green embryo. A tree, 50°-60° high, with a straight trunk 18'-20' in diameter, stout upright branches forming a narrow compact head, and slender terete ashy gray branchlets. Bark of the trunk about y thick, bright cinnamon-red, separating freely into small thin scales. "Wood very heavy, exceedingly hard, strong, close-grained, bright red- brown, with thick dark-colored sapwood of 50-60 layers of annual growth. Distribution. Rich hummocks near the shores of Bay Biscayne, and on Old Rhodes and Elliott's Keys, Florida; ou the Bahamas and on several of the Antilles. 098 TREES OF NORTH AMERICA 2. ANAMOMIS, Griseb. Trees, with terete slender branchlets and chartaeeons or coriaceous leaves. Flow- ers in pedunculate usually 3, sometimes 5-7, or occasionally l-flowered cymes, with axillary dichotomously branched or rarely simple peduncles furnished immediately below the apex of each division with 2 lanceolate acute deciduous bractlets; calyx ovoid, with 4 ovate acute persistent lobes; petals 4, ovate, acute, glandular-punctate, spreading after anthesis; ovary 2-4-celled; ovules numerous in each cell, attached irregularly to the central placenta, semianatropous. Fruit subglobose or more or less obliquely oblong, aromatic, 1 or sometimes 2-seeded. Seed reniform; embryo aromatic; cotyledons distinct, obovate, thick and fleshy, flat and rounded or more or less pointed, hicurved and variously infolded at the apex; radicle basilar, terete, accumbent, \-^ the length of the cotyledons. Anamomis with four or five species is confined to the West Indies, one species reaching the shores and islands of southern Florida. The generic name is from avd and a/xw/jLis, in allusion to the aromatic properties of these plants. 1. Anamomis dichotoma, Sarg. Naked Wood. Leaves ovate or obovate, acute or rounded and occasionally emarginate at the apex, cuneate at the base, entire, chartaeeons when they unfold, becoming subcori- aceous, glabrous, covered with minute black dots, I'-l^' long and ^'-f ' wide, with stout midribs; their petioles stout, enlarged at the base, coated at first with silky hairs, finally glabrous. Flowers appearing in Florida in May, 1' in diameter, in cymes produced near the ends of the branches, in the axils of leaves of the year, on slender peduncles coated with pale silky hairs, sometimes l-flowered and not longer than the leaves, more often longer than the leaves, dichotomously branched and 3-flowered, with 1 flower at the end of the principal division in the fork of its branches, or occa- sionally 5-7-flowered by the development of peduncles from the axils of the bracts of the secondary divisions of the inflorescence, each branch of the inflorescence fur- nished immediately beneath the flower with 2 lanceolate acute bracts nearly as long as the calyx-tube; calyx hoary-tomentose, with the ovate lobes rounded at the apex and much shorter than the ovate acute glandular-punctate white petals. Fruit ripening MYRTACE^ 699 in Florida in August, reddish brown, i' long, obliquely oblong, obovate or sub- globose, roughened by minute glands; flesh thin, rather dry and aromatic; seeds reniform, light brown, exceedingly fi'agrant. A tree, 20°- 25° high, with a trunk 6'- 8' in diameter, and slender terete branchlets at first light red and coated with pale silky hairs, becoming glabrous in their second year and covered with light or dark brown bark separating into small thin scales; or often a shrub, with numerous slender stems. Bark of the trunk ^^g^i' thick, with a smooth light red or red-brown surface separating into minute thin scales. Wood very heavy, hard, close-grained, light brown or red, with thick yellow sapwood of 40-50 layers of annual growth. Distribution. Rocky woods; Mosquito Inlet to Cape Canaveral, and from the banks of the Caioosa River to the shores of Cape Romano, on Key West, and in the neighborhood of Bay Biscay ne, Florida; on the Bahamas and on several of the West Indian islands. 3. CHYTRACULIA, P. Br. Aromatic trees or shrubs, with terete or angled branchlets. Leaves complanate in the bud, penniveined, petiolate. Flowers minute, in subterminal or axillary pedun- culate many-flowered panicles, their primary and secondary branches often racemose, and the ultimate branches cymose; calyx-tube turbinate, produced above the ovary, closed in the bud by a sliglitly 4 or 5-lobed. lid-like orbicular limb, opening in an- thesis by a circumscissile line, the limb at first attached laterally, finally deciduous; disk lining the tube of the calyx; petals 2-5, minute, or 0; ovary 2 or 3-celled; ovules 2 or 3 in each cell, collateral, ascending, anatropous. Fruit baccate, 2-4- seeded. Seed subglobose; seed-coat shining; cotyledons foliaceous, contortuplicate; radicle elongated, incurved. Chytraculia with seventy or eighty species is confined to tropical America, with a single species reaching southern Florida. The generic name is from x'^^P" in reference to the peculiar lid-like limb which closes the calyx before the opening of the flower. 1. Chytraculia Chytraculia, Sud-w. (^Calyptranthes Chytraculia, Silva N. Am. v. 35.) Leaves oblong or ovate-oblong, elongated and rounded or acute at the apex, gradually narrowed at the base, pellucid-punctate above, marked with dark glands below, when they unfold pink or light red and covered with pale silky hairs, and at maturity coriaceous, dark green and lustrous on the upper, coated with pale pubes- cence on the lower surface, 21^-3' long, \'-^' wide, wdth broad midribs orange-colored beneath; their petioles stout, \^-y long. Flowers sessile, 1' long, covered with rufous pubescence on the outer surface of the calyx, in subterminal and axillary long-stalked clusters 21'- 3' long and wide, with slender divaricate branches, the flowers of the ultimate divisions in 3's. Fruit oblong or nearly globose, dark reddish brown and puberulous, with thin dry flesh; seeds oblong, rounded at the ends. A tree, in Florida sometimes 20°-25° high, with a trunk 3'- 4' in diameter, small branches forming a narrow head, and slender branchlets at first w^ing-angled between the nodes and coated, like the branches of the flower-clusters, bracts, and flower- buds, with short rufous silky tomentum, becoming in their second or third year terete, thickened at the nodes, light gray tinged wath red and covered with small thin scales. Bark of the trunk about ^' thick, with a generally smooth light gray I 700 TREES OF NORTH AMERICA or almost white surface occasionally separating into irregular plate-like scales. "Wood very heavy, hard, close-grained, brown tinged with red, with lighter colored sapwood of 30-40 layers of annual growth. Distribution. Shores of Lake Worth, in the neighborhood of Bay Biscayne, and on Key West and Key Largo, Florida; on the Bahamas, on many of the Antilles and in southern Mexico. XLVI. COMBRETACEiE. Trees or shrubs, with astringent juice, naked buds, and alternate or oppo- site simple entire coriaceous persistent leaves without stipules. Flowers regu- lar, perfect, or polygamous ; calyx 5-lobed, the lobes valvate in the bud ; petals 5, valvate in the bud, inserted at the base of the calyx, or 0 ; disk epigynous ; stamens 5-10, inserted on the limb of the calyx ; filaments slender, filiform, distinct, exserted ; anthers introrse, 2-celled, the cells opening longitudinally ; ovary 1-celled ; style slender, subulate ; stigma minute, terminal, entire ; ovules usually 2, suspended from the apex of the cell, collateral, anatropous ; raphe ventral ; micropyle superior. Fruit drupaceous, often crowned with the accres- cent calyx. Seed solitary ; albumen 0 ; embryo straight, with convolute coty- ledons ; radicle minute, turned toward the hilum. Of the fifteen genera of this family, widely distributed through the tropics, three have arborescent representatives in southern Florida. CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES. Corolla 0 ; leaves alternate. Calyx deciduous ; flowers in capitate heads ; seeds winged. 1. Conocarpus. Calyx persistent ; flowers in spikes ; seeds without wings. 2. Buceras. Corolla of 5 petals ; calyx persistent ; leaves opposite. 3. Laguncularia. 1. CONOCARPUS, L. A tree or shrub, with angled branchlets. Leaves alternate, short-petiolate, nar- rowly ovate or obovate, acute, gradually contracted and biglandular at the base, glabrous or sericeous. Flowers perfect, minute, in dense capitate heads in narrow leafy terminal panicles, with acute caducous bracts and bractlets coated with pale hairs, on stout hoary-tomentose peduncles bibracteolate near the middle; calyx-tube COMBRETACEJS 701 truncate, obliquely compressed at the base, clothed with pale hairs, the limb cam- panulate, parted to the middle, the lobes ovate, acute, erect, pubescent on the outer and puberulous on the inner surface, deciduous; petals 0; disk o-lobed, hairy; stamens usually 5, inserted in 1 rank, or rarely 7 or 8 in 2 ranks; anthers cordate, minute; style thickened and villose at the base. Fruits scale-like, broadly obovate, pointed, recurved, and covered at the apex with short pale hairs, densely imbricated in ovoid reddish heads; flesh coriaceous, corky, produced into broad lateral wings; stone thin- walled, crustaceous, inseparable from the flesh. Seed irregularly ovoid; seed-coat membranaceous, pale chestnut-brown. The genus consists of a single species of tropical America and Africa. The generic name, from x'^^'o^ fiiid /capiros, is in allusion to the cone-like shape of the heads of fruits. 1. Conocarpus erecta, L. Button-wood. Leaves slightly puberulous on the lower surface when they first appear or coated with pale silky persistent pubescence (var. sericea, DC), 2'-4:' long, ^'-1^' wide, lus- trous, dark green or pale on the upper surface, paler on the lower surface, with broad orange-colored midribs, obscure primary veins, and reticulate veinlets; their petioles stout, broad, ^ long. Flowers produced throughout the year, in heads Y in diameter on peduncles ^'-1^ in length, in panicles 6'-12' long. Cones of fruit about 1' in diameter. A tree, 40°-60° high, with a trunk 20'-30' in diameter, small branches forming a narrow regular head, and slender branchlets conspicuously winged, light red-brown, usually glabrous, or silky pubescent (var. sericea, DC), becoming terete and marked by large orbicular leaf-scars in their second year; or sometimes a low shrub, wdth semiprostrate stems. Bark of the trunk dark brown, divided by irregular re- ticulating fissures into broad flat ridges broken on the surface into small thin appressed scales. Wood very heavy, hard, strong, close-grained, dark yellow-brown, wnth thin darker colored sapwood of about 10 layers of annual growth; burning slowly like charcoal and highly valued for fuel. The bark is bitter and astringent, and has been used in tanning leather, and in medicine as an astringent and tonic. Distribution. Low muddy tide-water shores of lagoons and bays; Florida, Cape Canaveral and Cedar Keys to the southern keys; of its largest size in Florida on 702 TREES OF NOKTH AMERICA Lost Man's River near Cape Sable, and at its northern limits a low shrub; common in the Antilles, on the shores of Central America and tropical South America, on the Galapagos Islands, and on the west coast of Africa. 2. BUCIDA, L. A tree or shrub, with terete often spinescent branchlets. Leaves alternate, crowded at the ends of spur-like lateral branchlets much thickened and roughened by the large elevated crowded leaf-scars, obovate to oblong-lanceolate, rounded and slightly emarginate or minutely apiculate at the apex, gradually narrowed and cuneate at the base, coriaceous, blnish green on the upper and yellow-green on the lower, sur- face, pubescent while young, especially beneath, and glabrous at maturity with the exception of rufous hairs on the under surface of the stout midribs, and on the short stout petioles. Flowers perfect, greenish white, hairy on the outer surface, sessile in the axils of minute bracts, in lax elongated axillary clustered rufous-pubescent spikes; calyx-tube ovoid, constricted above the ovary, the limb campanulate, 5-lobed, the lobes valvate in the bud, persistent; petals 0; stamens 10, in two ranks, inflexed in the bud, unequal, 5 longer than the others and inserted opposite the calyx-lobes under the hairy 5-lobed disk, the others shorter, alternate with them and inserted higher on the calyx-tube; filaments incurved near the apex; anthers minute, sagit- tate; ovary included in the tube of the calyx; style thickened and villose at the base; ovules suspended on elongated slender funiculi. Fruit ovoid, conical, oblique, and more or less falcate, irregularly 5-angled, coriaceous, light brown, puberulous on the outer surface, with thin membranaceous flesh inseparable from the crustaceous stone porous toward the interior. Seed ovate, acute; seed-coat coriaceous, chestnut- brown; cotj^ledons fleshy; radicle superior. Bucida with a single species is confined to tropical America, where it is distributed from southern Florida throuofh the West Indies to Guiana and Central America. The generic name is from /Sous, in allusion to the fancied resemblance of the fruit to the horns of an ox. 1. Bucida Buceras, P. Br. Black Olive Tree. (Terminalia Buceras, Silva N. Am. v. 21.) Leaves 2'-3' long, I'-l^' wide, their petioles y-\' in length. Flowers appearing in Florida in April, 1' long, on spikes l^'-3' in length. Fruit about \' long. COMBRETACEuE 703 A tree, with a single straight trunk, or often with a short prostrate stem 2°-3° in diameter, producing several straight upright secondary stems 40*^-50° high and 12'-18' in diameter, stout branches spreading nearly at right angles with the trunk and forming a broad head, and branchlets clothed when they first appear with short pale rufous pubescence mostly persistent for two or three years, becoming light red- dish brown and covered with bark separating into thin narrow shreds. Bark of the trunk and of the large branches thick, gray tinged with orange-brown, and broken into short appressed scales. Wood exceedingly heavy, hard, close-grained, light yellow-brown sometimes slightly streaked with orange, with thick clear pale yellow sapwood of 30-40 layers of annual growth. The bark has been used in tanning leather. Distribution. Florida, only on Elliott's Key; widely distributed in brackish marshes through the West Indies to the shores of the Caribbean Sea and the Bay of Panama. 3. LAGUNCULARIA, Gaertn. A tree, with scaly bark, terete pithy branchlets, and naked buds. Leaves oppo- site, glabrous, thick and coriaceous, oblong or elliptical, obtuse or emarginate at the apex, marked toward the margiu with minute tubercles; their petioles conspicuously biglandular. Flowers usually perfect or polygamo-moncecious, minute, flattened, greenish white, sessile, in simple terminal axillary tomentose spikes generally col- lected in leafy panicles, with ovate acute hoary-tomentose bracts andbractlets; calyx- tube turbinate, with 5 prominent ridges opposite the lobes of the limb and 5 inter- mediate lesser ridges, bracteolate near the middle, with 2 minute persistent bracts, and coated with dense pale tomentum, the limb urceolate, 5-parted to the middle, the divisions triangular, obtuse or acute, erect, persistent; disk epigynous, flat, 10- lobed, the o lobes opposite the petals broader than those opposite the calyx-lobes, hairy; petals 5, nearly orbicular, contracted into short claws inserted on the bottom of the calyx-limb, ciliate on the margins, caducous; stamens 10, inserted in 2 ranks; anthers cordate, apiculate; ovary 1-celled; style short, crowned with a slightly 2-lobed capitate stigma. Fruit 10-ribbed, coriaceous, hoary-pubescent, elongated, obovoid, flattened, crowned with the calyx-limb, unequally 10-ribbed, the 2 lateral ribs produced into narrow wings, 1-seeded; flesh coriaceous, corky toward the inte- rior, inseparable from the thin-walled crustaceous stone dark red and lustrous on the inner surface. Seed suspended, obovate or oblong; seed-coat membranaceous, dark red; radicle elongated, slightly longer and nearly inclosed by the green cotyle- dons. Laguncularia consists of a single species of tropical America and Africa. The generic name is from laguncula, in allusion to the supposed resemblance of the fruit to a flask. 1. Laguncularia racemosa, Gaertn. Buttonwood. White Mangrove. Leaves slightly tinged with red when they unfold, and at maturity dark green on the upper and lighter green or pale on the lower surface, l^'-2^' long, and I'-l^' wide; their petioles red, 1' in length. Flowers \' long, in hoary-tomentose spikes produced throughout the year from the axils of young leaves and 1^-2' long. Fruit about \' long. A tree, 30°-60° high, with a trunk 12'-20' in diameter, stout spreading branches forming a narrow round-topped head, and slender glabrous branchlets somewhat 704 TREES OF NORTH AMERICA angled at first, often marked with minute pale spots and dark red-brown, becoming in their second year terete, light reddish brown or orange color, thickened at the nodes, and marked by conspicuous ovate leaf-scars; or northward in Florida a low siirub. Bark of tiie trunk \' thick, brown slightly tinged with red, the surface broken into long ridge-like scales. Wood heavy, hard, strong, close-grained, dark yellow-brown, with lighter colored sapwood of 10-12 layers of annual growth. The bark contains a large amount of tannic acid and is sometimes used in tanning leather, and is astringent and tonic. Distribution. Muddy tidal shores of bays and lagoons; common in southern Florida from Cape Canaveral and Cedar Keys to the southern islands; of its largest size in Florida on the shores of Shark River; common in Bermuda, the Bahamas, the Antilles, tropical Mexico and Central America, tropical South America and western Africa. XLVII. ARALIACEJG. Trees, shrubs, or herbs, vrith watery juice and scaly buds. Leaves alter- nate, comjDound, petiolate, with stipules. Flowers in racemose or panicled umbels ; parts of the flower in 5's ; disk epigynous ; ovule solitary, suspended from the apex of the cell, anatropous. Fruit baccate. Seeds with albumen. The Aralia family with fifty genera is chiefly tropical, with a few genera extending beyond the tropics into the northern hemisphere, especially into North America and eastern Asia. The widely distributed and largely extra- tropical genus Aralia is represented by one arborescent species in the flora of the United States. Hedera, the Ivy, of this family, is commonly cultivated in the temperate parts of the United States, and some species of Panax and Acanthopanax from eastern Asia are found in gardens in the northeastern states. 1. ARALIA, L. Aromatic spiny trees and shrubs, with stout pithy branchlets, and thick fleshy roots, or bristly or glabrous perennial herbs. Leaves alternate, digitate or once or twice pinnate, the pinnse serrulate ; stipules produced on the expanded and clasping base of the petiole. Flowers perfect, polygarao-monoecious or polygamo-dicecious, on ARALIACE^ 705 slender jointed pedicels, small, greenish white; calyx-tube coherent with the ovary, the limb truncate, repand or minutely toothed, the teeth valvate in the bud; petals imbricated in the bud, inserted by their broad bases on the margin of the disk, ovate, obtuse or acute and slightly inflexed at the apex; stamens inserted on the margin of the disk, alternate with the petals; filaments filiform; anthers oblong or rarely ovate, attached on the back, introrse, 2-celled, the cells opening longitudi- nally; ovary 2-5-celled; styles 2-5, in the fertile flower distinct and erect or slightly united at the base, spreading and incurved above the middle, or incurved from the base and sometimes inflexed at the apex, crowned with large capitate stigmas, in the sterile flower short and united. Fruit fleshy, 2-5-seeded, laterally compressed or 3-5-angled, crowned with the remnants of the style; nutlets 2-o, orbicular, ovate or oblong, compressed, crustaceous, light reddish brown, 1-seeded. Seed compressed; seed-coat thin, light brown, adnate to the thin fleshy albumen; cotyledons ovate- oblong, as long as the straight radicle. Aralia with about thirty species is confined to North America and Asia. The generic name is of obscure meaning. 1. Aralia spinosa, L. Hercules' Club. Leaves clustered at the ends of the branches, twice pinnate, 3°-4° long, and 2^° wide, with stout light brown petioles 18'-20' in length, clasping the stem with enlarged bases and armed with slender prickles, or occasionally unarmed; pinnse unequally pinnate, usually with 5 or 6 pairs of lateral leaflets and a long-stalked terminal leaflet, and often furnished at the base with a pinnate or simple leaflet; leaflets ovate, acute, dentate or crenate, wedge-shaped or more or less rounded at the base, short-petiolulate, when they unfold lustrous, bronze-green, and slightly pilose on the midribs and primary veins, and occasionally furnished with small prickles on the mid- ribs, and at maturity membranaceous, dark green above, pale beneath, 2'-3' long, and 1^' wide, with thin midribs and slender primary veins nearly parallel with their margins, in the autumn turning light yellow before falling; stipules acute, about V long, at first pubemlous on the back and ciliate on the margins. Flo"wers appear- ing in midsummer on long slender pubescent straw-colored pedicels, in many-flow- ered umbels arranged in compound panicles, with light brown pubemlous branches 706 TREES OF NORTH AMERICA becoming purple in the autumn, forming- a terminal racemose cluster 3°-4° long, and rising solitary or 2 or 3 together above the spreading leaves; jDracts and bractlets lanceolate, acute, scarious, persistent. Flow^ers ^' long, perfect or often unisexual by the abortion of the ovary, with acute white petals inflexed at the apex, and connivent styles. Fruit ripening in August, black, i' in diameter, globose, 3-5-angled, crowned with the blackened styles, with thin purple very juicy flesh; seeds oblong, rounded at the ends, about ^■^' long. A tree, 30°-35° high, with a trunk 6'-8' in diameter, stout wide-spreading branches, and branchlets ^'-f' in diameter, armed like the branches and young trunks with stout straight or slightly incurved orange-colored scattered prickles, and nearly encircled by the conspicuous narrow leaf-scars marked by a row of prominent fibro- vascular bundle-scars, liglit orange-colored in their first season, lustrous and marked irregularly with oblong pale lenticels, becoming light brown in their second year, with bright green inner bark; more often a shrub, with a cluster of unbranched stems 6°-20° tall. "Winter-buds: terminal conical, blunt at the apex, l'-|' long, with thin chestnut-brown scales; axillary triangular, flattened, about Y long and broad. Bark of the trunk dark brown, about ^ thick, and divided by broad shallow fissures into wide rounded ridges irregularly broken on the surface. Wood close- grained, light, soft, brittle, brown streaked with yellow, with lighter colored sap- wood of 2 or 3 layers of annual growth. The bark of the roots and the berries are stimulant and diaphoretic, and are sometimes used in medicine and in domestic practice. Distribution. Deep moist soil in the neighborhood of streams; western slope of the Alleghany Mountains, Pennsylvania, to southern Indiana and southeastern Mis- souri, and southward to northern Florida, western Louisiana, and eastern Texas; probably of its largest size on the foothills of the Big Smoky Mountains in Tennes- see; also in Manchuria and Japan in slightly modified forms. Occasionally cultivated as an ornamental plant in the eastern states and in western Europe; less frequently seen in gardens than the more robust Manchurian plant. XLVIII. CORNACE^. Trees or shrubs, with terete branchlets, scaly buds, and alternate or op})0- site deciduous leaves without stipules. Flowers perfect or polygamo-dioecious ; calyx 4 or 5-toothed ; petals 4 or 5 ; stamens inserted on the margin of the epigynous disk ; anthers oblong, introrse, 2-celled, the cells opening longitudi- nally ; ovary 1 or 2-celled ; ovule solitary, suspended from the interior angle of the' apex of the cell, anatropous ; micropyle superior. Fruit drupaceous, 1 or 2-seeded. Seed oblong-ovate ; seed-coat membranaceous ; embryo in copious fleshy albumen ; cotyledons foliaceous ; radicle terete, turned toward the hilum. The widely distributed Cornel family with fifteen genera, more numerous in temperate than in tropical regions, has arborescent representatives of two genera in North America. CONSPECTUS OF THE NORTH AMERICAN ARBORESCENT GENERA. Flowers polygamo-dioecious ; petals imbricated in the bud ; stignia lateral ; leaves alternate. 1. Nyssa. Flowers perfect ; petals valvate in the bud ; stigma terminal ; leaves opposite or rarely alternate. 2. Cornus. CORNACE^ 707 1. NYSSA, I.. Trees, with alternate leaves eouduplicate in the bud, petiolate, sometimes remotely angulate or toothed, mostly crowded at the euds of the branches. Flowers polygarao- dioecious, minute, greenish white; staminate on slender pedicels from the axils of minute caducous bracts, in simple or compound clusters on long axillary peduncles bibracteolate near the middle or at the apex or sometimes without bractlets; calyx disciform or cup-shaped, the limb o-toothed; petals 5, imbricated in the bud, equal or unequal, ovate or linear-oblong, thick, inserted on the margin of the conspicuous pulvinate entire or lobed disk, erect; stamens 5, exserted; filaments filiform; an- thers oblong; ovary 0; pistillate flowers on axillary peduncles, in 2 or few-flowered clusters, sessile or nearly so, in the axils of conspicuous bracts and furnished with 1 or 2 small lateral bractlets, or solitary and surrounded by 2-4 bractlets; calyx-tube campanulate, sometimes slightly urceolate, the limb o-toothed; petals small, thick, and spreading; stamens 5-10; filaments short; anthers fertile or sterile; disk less developed than in the staminate flower, depressed in the centre; ovary 1 or 2-celled; style terete, elongated, recurved, stigmatic toward the apex or the inner face; raphe ventral. Fruit oblong, fleshy, urceolate at the apex; flesh thin, oily, acidulous; stone thick-walled, bony, terete or compressed, ridged or winged, 1 or rarely 2-celled, usually 1-seeded. Seed filling the cavity of the stone; seed-coat pale; embryo straight. Nyssa with five species is confined to the eastern United States and to southern Asia, where a single species is distributed from the eastern Himalayas to the island of Java. The American species produce tough wood, with intricately contorted and twisted grain. Nyssa, the name of a nymph, was given to this genus from the fact that one of the species grows in water. CONSPECTUS OF THE NORTH AMERICAN SPECIES. Pistillate flowers in 2 or few-flowered clusters ; fruit blue, not more than f ' long ; stone with low broad rounded ridges. Stone indistinctly ridged ; leaves linear-oblong to oval or obovate. 1. N. sylvatica (A, C). Stone prominently ribbed ; leaves oblanceolate to oblong or elliptic. 2. N. biflora (C). Pistillate flowers solitary; fruit 1' or more long; stone with prominent wings or acute ridges. Fruit red ; stone with prominent wings ; leaves oblong-oval or obovate, usually obtuse at the apex. 3. N. Ogeche (C). Fruit purple ; stone with acute ridges ; leaves oval or oblong, acute or acuminate at the apex. 4. N. aquatica (A, C). 1. Nyssa sylvatica, Marsh. Tupelo. Pepperidge. Leaves crowded at the ends of lateral branchlets or remote on vigorous shoots, linear-oblong, lanceolate, oval or obovate, acute or acuminate or sometimes con- tracted into short broad points at the apex, wedge-shaped or occasionally rounded at the base, entire, with slightly thickened margins, or rarely coarsely dentate, when they unfold coated with rufous tomentum, especially on the lower surface, or pubes- cent or sometimes nearly glabrous, and at maturity thick and firm, dark green and very lustrous above, pale and often hairy below, principally along the broad midribs 708 TREES OF NORTH AMERICA and on the primary veins, 2'-5' long, ^-3' wide, turning in the autumn before fall- ing bright scarlet on the upper surface only; their petioles slender or stout, terete or wing-margined, ciliate, ^'-1^' long, and often bright red. Flowers appearing when the leaves are about one third grown on slender pubescent or tomentose peduncles ^'-1^' long, the males in many-flowered dense or lax compound heads, the Ht 5ii females in 2 to several-flowered clusters, sessile in the axils of conspicuous often foliaceous bracts, and furnished with 2 smaller acute hairy bractlets; calyx of the staminate flower disciform ; petals thick, ovate-oblong, acute, rounded at the apex, erect or slightly spreading, early deciduous; stamens exserted in the staminate flower, shorter than the petals in the pistillate flower; stigma stout, exserted, reflexed above the middle, 0 in the staminate flower. Fruits ripening in October, 1-3 from each flower-cluster, ovoid, |^'— |' long, dark blue, with thin acrid flesh; stone light brown, ovoid, rounded at the base, pointed at the apex, terete, or more or less flattened, and 10-12-ribbed, with narrow indistinct pale ribs rounded on the back. A tree, occasionally 100° high, with a trunk sometimes 5° in diameter, many slender pendulous tough flexible branches forming a head sometimes short, cylindrical, and flat-topped, sometimes low and broad, or on trees crowded in the forest narrow, pyramidal, or conical, and sometimes inversely conical and broad and flat at the top, branchlets at first light green to orange color, and in their first winter nearly gla- brous or pale or rufous-pubescent, light red-brown marked by minute scattered pale lenticels and by small lunate leaf-scars displaying the ends of 3 conspicuous groups of fibro-vascular bundles, later becoming darker and developing short stout spur- like lateral branchlets, and long thick hard roots; generally in the northern and extreme southern states much smaller, and rarely more than 50°-60° tall. Winter- buds obtuse, ^' long, with ovate acute apieulate dark red pnberulous imbricated scales, those of the inner ranks accrescent, bright-colored at maturity, and marking the base of the branchlet with obscure ring-like scars. Bark of the trunk f'-l^' thick, light brown often tinged with red, and deeply fissured, the surface of the ridges covered with small irregularly shaped scales. Wood heavy, soft, strong, very tough, not durable, light yellow or nearly white, with thick lighter colored sapwood of 80-100 layers of annual growth; used for the hubs of wheels, rollers in glass factories, ox-yokes, wharf-piles, and sometimes for the soles of shoes. CORNACEiE 709 Distribution. Borders of swamps in wet imperfectly drained soil, and soutli- ward often on high wooded mountain slopes; valley of the Kennebec River, Maine, to southern Ontario, central Michigan, and southeastern Missouri, and southward to the shores of the Kissimee River and Tampa Bay, Florida, and to the valley of the Brazos River, Texas; of its largest size on the southern Appalachian Mountains. Occasionally cultivated as an ornamental tree in the eastern states. 2. Nyssa biflora, Walt. (^Nyssa sylvatica, var. hijiora, Silva N. Am. v. 76.) Leaves oblanceolate, oblong, elliptic or rarely ovate, acute or acuminate or occasionally rounded at the narrow apex, cuneate or rounded at the gradually nar- rowed base, and entire, when they unfold silky-villose above and hoary-tomentose beneath, soon becoming glabrous, dark yellow-green and lustrous on the upper, paler and sometimes glaucous on the lower surface, 2'-4' long and |'-1' wide, with prominent midribs and numerous slender veins; their petioles stout, ^-^' long. Flo"wers appearing when the leaves are nearly fully grown; staminate on slender villose pedicels, in many-flowered loose clusters on slender hairy peduncles I'-l^' in length; pistillate in pairs on rather stouter peduncles usually about V long; calyx of the staminate flower disciform; petals ovate-oblong, rounded at the apex, white, erect or slightly spreading, early deciduous. Fruit solitary or in pairs, on pedun- cles I'-l^' long, oval or ellipsoidal, dark blue, lustrous, about |-' long, with acrid pulp; stone oval, compressed, narrowed at the ends, and prominently ribbed. A tree, rarely more than 30° high, with a slender trunk gradually tapering up- ward from a swollen and much enlarged base, small spreading branches forming a narrow pyramidal or round-topped head, and branchlets slightly villose when they first appear, soon glabrous, and bright reddish brown in their first winter, becoming darker the following vear, and numerous erect thick roots risins" from the surface of the water. Winter-buds acute, dark red-brown, puberulous, and about \' long, the inner scales hoary-tomentose. Bark about V thick, deeply furrowed, very dark reddish brown. Distribution. Small Pine-barren ponds in the neighborhood of the coast; North Carolina to Louisiana. 710 TREES OF NORTH AMERICA 3. Nyssa Ogeche, Marsh. Ogeechee Lime. Sour Tupelo. Leaves oblong, oval or obovate, acute, rounded or rarely obtuse and apiculate at the apex, gradually or abruptly wedge-shaped or soaietimes rounded at the base, ^51J and entire, when they unfold covered on the lower surface with thick hoary tomentum and on the upper surface with short scattered pale hairs, and at maturity thick and firm, dark green, lustrous and slightly pilose above, pale below, 4'-6' long, 2'-2|' wide, with stout midribs, 9 or 10 pairs of primary veins covered on the lower side with rufous pubescence or often nearly glabrous, and obscure reticulate veinlets; their petioles stout, grooved, ^'-1' long. Flovrers greenish yellow, appearing in March and April; staminate minute, in capitate clusters on slender hairy peduncles y long, bibracteolate near the middle, and developed from the axils of the inner scales of the terminal bud, covered with long pale hairs on the outer surface of the short obscurely 5-toothed calyx and on the oblong petals rounded at the apex; filaments longer than the petals; anthers oval and conspicuously tuberculate-roughened; pistillate solitary, Y^g' long, on short stout woolly peduncles from the axils of bud-scales, and furnished at the apex with 2 acute hairy bractlets; calyx coated, like the minute rounded spreading petals, with hoary tomentum; stamens included, with short filaments, and small mostly fertile anthers; style stout, exserted, reflexed from near the base. Fruit bright or dull red, on slender tomentose stems enlarged at the apex and ^'-f' long, ripening in July and August, and sometimes persistent on the branches until after the falling of the leaves, oblong or obovate, V-iy in length, tipped with the thick- ened and pointed remnants of the style; flesh thick, juicy, very acid; stone oblong, compressed, narrowed at the ends, rounded at the base, acute at the apex, with walls produced into 10 or 12 broad thin papery white wings, about 1' long, and 1 or rarely 2-seeded. A tree, rarely 60°-70° high, with 1 or several stems occasionally 2° in diameter, spreading branches forming a narrow round-topped head, and slender branchlets coated when they first appear with rufous tomentum, light reddish brown or green tinged with red and puberulous during their first summer, turning gray or reddish brown in their first winter, and marked by large lunate or nearly triangular leaf- scars displaying the ends of 3 groups of fibro-vascular bundles; often a shrub, with CORNACE^ 711 numerous slender clustered diverging stems. "Winter-buds obtuse, ^' long, with o*'ate apiculate imbricated scales rounded on the back and clothed with thick hoary tomentum, those of the inner ranks becoming at maturity ovate-oblong or obovate, rounded at the apex, bright red, and ^'-f' long. Bark of the trunk about i-' thick, irregularly fissured, with a dark brown surface broken into thick appressed persist- ent plate-like scales. "Wood light, soft, tough, not strong, white, with thin hardly distinguishable sapwood of about 10 layers of annual growth. A preserve with an ao-reeable subacid flavor, known as Ogeechee limes, is sometimes made from the fruit in Georgia and South Carolina. The flowers abound in nectar, and are much visited by bees. Distribution. Deep often inundated river swamps or their borders; South Caro- lina in the neighborhood of the coast, through the valley of the Ogeechee River, Georgia, in northern and western Florida, and in the valley of the lower Appalachi- cola River; rare and local. 4. Nyssa aquatica. Marsh. Cotton Gum. Tupelo Gum. Leaves ovate-oblong, acute or acuminate and often long-pointed at the apex, wedge-shaped, rounded, or subcordate at the base, entire or remotely and irregularly angulate-toothed, the teeth often tipped with long slender raucros, when they unfold light red and coated below and on the petioles with pale tomentum and pubescent above, especially on the midribs, and at maturity thick and firm, dark green and lustrous on the upper, pale and more or less downy-pubescent on the lower surface, 5'-7' long and 2'-4' wide, with broad thick midribs, and 10-12 pairs of primary veins forked near the margins and connected by conspicuous cross veins; their peti- oles stout, grooved, hairy, enlarged at the base, 1^-21' long. Flowers appearing in March and April on long slender hairy peduncles in the axils of the inner scales of the terminal bud; staminate in dense capitate clusters, their peduncles furnished near the middle and occasionally at the apex with long linear ciliate bractlets; calyx-tube cup-shaped, obscurely 5-toothed, one third as long as the oblong erect petals rounded at the apex and much shorter than the stamens; pistillate solitary, surrounded by 2-4 strap-shaped scarious ciliate bractlets often i' long and more or less united below into an involucralcup; calyx-tube oblong and much longer than the ovate minute spreading petals; stamens included, with small mostly fertile anthers; 712 TREES OF NORTH AMERICA style stout, tapering, reflexed above the middle, and revoliite into aclosecoiL Fruit ripening early in the autumn, on slender drooping stalks 3'-4' in length, oblong or slif'htly obovate, crowned with the pointed remnants of the style, dark purple, marked by conspicuous scattered pale dots, and 1' long, with thick tough skin and thin acid flesh; stone obovate, rounded at the narrow apex, pointed at the base, flattened, light brown or nearly white, and about 10-ridged, the ridges acute and wing-like, with thin separable margins, and sometimes united by short intermediate ridges. A tree, 80°-100° high, with a trunk 3°-4° in diameter above the greatly enlarged tapering base, comparatively small spreading branches forming a narrow oblong or pyramidal head, stout pithy branchlets dark red and coated with pale tomentum when they first appear, soon becoming glabrous or nearly so, and in their first winter lio-ht or bright red-brown and marked by small scattered pale lenticels and by the conspicuous elevated nearly orbicular leaf-scars displaying the ends of 3 large fibro- vascular bundles, and thick corky roots. "Winter-buds: terminal nearly globose, with broad ovate light chestnut-brown scales keeled on the back and rounded and apiculate at the apex, those of the inner ranks accrescent and at maturity ovate- oblong or obovate-oblong, rounded at the apex, 1' or more long, and bright yellow; axillary minute, obtuse, nearly imbedded in the bark. Bark of the trunk about Y thick, dark brown, longitudinally furrowed, and roughened on the surface by small scales. ■Wood light, soft, not strong, close-grained, difficult to split, light brown or often nearly white, with thick sapwood sometimes composed of more than 100 layers of annual growth; used in the manufacture of wooden ware, broom-handles, and wooden shoes, and largely for fruit and vegetable boxes„ The wood of the roots is sometimes employed instead of cork for the floats of nets. Distribution. Deep swamps inundated during a part of every year; coast region of the Atlantic states from southern Virginia to northern Florida, through the Gulf states to the valley of the Nueces River, Texas, and through Arkansas and southern and southeastern Missouri to western Kentucky and Tennessee, and to the valley of the lower Wabash River, Illinois; of its greatest size in the Cypress swamps of western Louisiana and eastern Texas. 2. CORNUS, L. Dogwood. Trees and shrubs, with astringent bark, opposite or rarely alternate deciduous leaves conduplicate or involute in the bud. Flowers small, perfect, white, greenish white or yellow; calyx-tube minutely 4-toothed, the teeth valvate in the bud; disk pulvinate, depressed in the centre, or obsolete; petals 4, valvate in the bud, oblong- ovate, inserted on the margin of the disk; stamens 4, alternate with the petals; filaments slender, exserted; ovary 2-celled; style exserted, simple, columnar, crowned with a single capitate or truncate stigma; raphe dorsal. Fruit ovoid or oblong; flesh thin and succulent; nut bony or crustaceous, 2-celled, 2 or sometimes 1-seeded. Seed compressed; embryo straight or slightly incurved. Cornus with forty to fifty species is widely distributed through the three continents of the northern hemisphere, and south of the equator is represented in Peru by a single species. Of the sixteen or seventeen species of the United States four are arborescent. Cornus is rich in tannic acid, and the bark and occasionally the leaves and unripe fruit are used as tonics, astringents, and febrifuges. Of exotic species, Cornus mas, L., is often planted in the eastern states as an ornamental tree, and its edible fruit is used in Europe in preserves and cordials. The wood of Cornus is hard, close-grained, and durable, and is used in turnery and for charcoal. CORNACEiE 713 The generic name, from cornu, relates to the hardness of the wood produced by plants of this family. CONSPECTUS OF THE ARBORESCENT SPECIES OF THE UNITED STATES. Flowers greenish, in a dense cyraose head surrounded by a conspicuous corolla-like involucre of 4-6 white or rarely red scales, frona terminal buds formed the previous summer ; fruit ovoid, bright red. Heads of flower-buds inclosed by the involucre during the winter ; involucral scales 4, obcordate or notched at the apex ; leaves ovate to elliptical. 1. C. florida (A, C). Heads of flower-buds not inclosed by the involucre during the winter ; involucral scales 4-6, oblong to obovate, usually acute at the apex ; leaves ovate or rarely obovate. 2. C. Nuttallii (B, G). Flowers cream color, in a flat cymose head, without involucral scales, terminal on shoots of the year ; fruit subglobose, white or dark blue. Leaves opposite, scabrous above ; fruit white. 3. C. asperifolia (A, C). Leaves mostly alternate and clustered at the ends of the branches, smooth above; fruit dark blue. 4. C. alternifolia (A, C). 1. Cornus florida, L. Flowering Dogwood. Leaves ovate to elliptical or rarely slightly obovate, acute and often contracted into slender points at the apex, gradually narrowed at the base, remotely and ob- scurely crenulate-toothed on the somewhat thickened margins, and mostly clustered at the ends of the branches, when they unfold pale and pubescent below and puberu- lous above, and at maturity thick and firm, bright green and covered with minute appressed hairs on the upper surface, pale or sometimes almost white and more or less pubescent on the lower surface, 3'-6Mong and 1^-2' wide, with prominent light-colored midribs deeply impressed above, and 5 or 6 pairs of primary veins par- allel with their sides and connected by obscure reticulate veinlets, in the autumn turning bright scarlet on the upper surface; their petioles grooved, ^'— |' long. Flowers : head of flower-buds appearing during the summer between the upper pair of lateral leaf-buds, inclosed by 4 involucral scales remaining light brown and more or less covered with pale hairs during the winter and borne on a stout club- shaped puberulous peduncle \' long or less during the winter and becoming I'-l^ 714 TREES OF NORTH AMERICA in length; involucral bracts beginning to unfold, enlarge and grow white in early spring and when the flowers open in March at the south to May at the north, when the leaves are nearly fully grown, forming a flat corolla-like cup 3'-4' in diameter, becoming at maturity obcordate, I'-l^' wide, gradually narrowed below the middle and notched at the rounded apex, reticulate-veined, pure white, pink, or rarely bright red, deciduous after the fading of the flowers; flowers in dense many-flowered cymose heads, in the axils of broadly ovate nearly triangular minutely apiculate glabrous light green deciduous bractlets ^ in diameter; calyx terete, slightly urceolate, pu- berulous, obtusely 4-lobed, light green; corolla-lobes strap-shaped, rounded or acute at the apex, slightly thickened on the margins, puberulous on the outer surface, reflexed after anthesis, green tipped with yellow; disk large and orange-colored; style crowned with a truncate stigma. Fruit ripening in October, ovoid, crowned with the remnants of the narrow persistent calyx and with the style, bright scarlet, 1' long, Y broad, with thin mealy flesh, and a smooth thick- walled slightly grooved stone acute at the ends and 1 or 2-seeded; seeds oblong, pale brown. A bushy tree, rarely 40° high, with a short trunk 12'-18' in diameter, slender spreading or upright branches, and divergent branchlets turning upward near the ends, pale green or green tinged with red when they first appear, glabrous or slightly puberulous, bright red or yellow-green during their first winter and nearly sur- rounded by the narrow ring-like leaf-scars, later becoming light brown or gray tinged with red; frequently toward the northern limits of its range a much-branched shrub. Winter-buds formed in midsummer; the terminal covered by 2 opposite acute pointed scales rounded on the back and joined below for half their length, and accompanied by 2 pairs of lateral buds, each covered by a single scale, those of the lower pair shedding their scales in the autumn and remaining undeveloped. Bark of the trunk ^'-\' thick, with a dark red-brown surface divided into quadrangular or many-sided plate-like scales. Wood heavy, hard, strong, close-grained, brown sometimes changing to shades of green and red, with lighter colored sapwood of 30-40 layers of annual growth; largely used in turnery, for the bearings of machinery, the hubs of small wheels, barrel-hoops, the handles of tools, and occasionally for en- gravers' blocks. Distribution. Usually under the shade of taller trees in rich well-drained soil; eastern Massachusetts to southern Ontario and southeastern Kansas, and south- ward to central Florida and the valley of the Brazos River, Texas ; and on the moun- tains of northern Mexico; comparatively rare at the north; one of the commonest and most generally distributed inhabitants of the deciduous-leaved forests of the mid- dle and southern states, ranging from the coast nearly to the summits of the high Alleghany Mountains. Often planted as an ornament of parks and gardens in the eastern states. 2. Cornus Nuttallii, Aud. Dogwood. Leaves ovate or slightly obovate, acute and often contracted into short points at the apex, wedge-shaped at the base, faintly crenulate-serrate, and generally clus- tered toward the ends of the branches, when they unfold coated below with pale tomentum and puberulous above, and at maturity membranaceous, bright green and slightly puberulous, with short appressed hairs on the upper, and woolly pubescent on the lower surface, 4'-5' long, l^'-3' wide, with prominent pale midribs impressed above, about 5 pairs of slender primary veins parallel with the margins and con- nected by remote reticulate veinlets, in the autumn turning bright orange and CORNACE^ 715 scarlet before falling; their petioles stout, grooved, pubescent, ^'-|' long, with large clasping base?. Flowers : head of flower-buds appearing during the summer be- tween the upper pair of lateral leaf-buds, surrounded at the base but not inclosed by the involucral scales during the winter, hemispherical, ^' in diameter, usually nodding on a stout hairy peduncle f'-l' long; involucral scales becoming when the flowers open 1^-3' long, and l|^'-2' wide, white or white tinged with pink, narrowly oblong to obovate or sometimes nearly orbicular, acute, acuminate, or obtuse and en- tire and thickened at the apex, puberulous on the outer surface, gradually narrowed below the middle and conspicuously 8-ribbed, the spreading ribs united by reticulate veinlets; flowers in dense cymose heads from the axils of minute acuminate scarious deciduous bracts; calyx terete, slightly urceolate, puberulous on the outer surface, yellow-green, or light purple, with dark red-purple lobes; petals strap-shaped, rounded at the apex, spreading, somewhat puberulous on the outer surface, with thickened slightly inflexed margins, yellow-green; style crowned with a truncate stigma. Fruit ripening in October, in dense spherical heads of 30-40 drupes sur- i rounded at the base by a ring of abortive pendulous ovaries, ^' long, ovoid, much flattened, crowned with the broad persistent calyx, bright red or orange-colored, with thin mealy flesh, and a thick-walled 1 or 2-seeded stone obtuse at the ends and scarcely grooved ; seeds oblong, compressed, with a very thin pale papery coato A tree, 40°-60°, or exceptionally 100° high, with a trunk l°-2° in diameter, small spreading branches forming an oblong conical or ultimately round-topped head, and slender light green branchlets coated while young with pale hairs, becoming gla- brous or puberulous, dark reddish purple or sometimes green in their first winter and conspicuously marked by the elevated lunate leaf-scars, ultimately becoming light brown or brown tinged with red. Winter-buds formed in July; the terminal acute, y long, covered by 2 narrowly ovate acute long-pointed puberulous light green opposite scales accompanied by 2 pairs of lateral buds, each covered by a single scale, those of the lower pair shedding their scales in the autumn and remain- ing undeveloped, those of the upper pair clothed with pale hairs, especially toward the apex, their scales thickening, turn dark purple, lengthening in the spring with the inclosed shoots, finally becoming scarious and developing into small leaves, and in falling marking the base of the branchlets with ring-like scars. Bark of the trunk about \' thick, brown tinged with red, and divided on the surface into small 716 TREES OF NORTH AMERICA thin appressed scales. Wood heavy, exceedingly hard, strong, close-grained, light brown tinged with red, with lighter colored sapwood of 30-40 layers of annual growth; used in cabinet-making, for mauls and the handles of tools. Distribution. Usually iu moist well-drained soil under the shade of coniferous forests; valley of the lower Eraser River and Vancouver Island, British Columbia, southward through western Washington and Oregon, on the coast ranges of Cali- fornia to the San Bernardino Mountains, and on the western slopes of the Sierra Nevada; southward ascending to elevations of 4000°-5000° above the level of the sea; of its largest size near the shores of Puget Sound and in the Redwood forests of northern California. 3. Cornus asperifolia, Michx. Dogwood. Leaves ovate or oblong, gradually or abruptly contracted at the apex into long slender points, gradually narrowed or rounded and cuneate at the base, and slightly thickened on the undulate margins, when they unfold coated with lustrous silvery tomentum, and nearly fully grown when the flowers open from the middle of May in Texas to the middle of July at the north, and then dark green and roughened above by short rigid white hairs, and pale, often glaucous or rough-pubescent below, and at maturity membranaceous, scabrous on the upper, pubescent or puberulous on the lower surface, 3'-4' long and l^'-2' wide, with thin midribs and 4—6 pairs of slen- der primary veins parallel with their sides; their petioles stout, grooved, pubescent, usually about ^ long. Flowers cream color, on slender pedicels, in loose broad or narrow often panicled pubescent cymes, on peduncles frequently 1' in length; calyx oblong, cup-shaped, obscurely toothed, covered with fine silky white hairs; corolla- lobes narrowly oblong, acute, about ^ long, and reflexed after the flowers open; style thickened at the apex into a prominent stigma. Fruit ripening from the end of August until the end of October, in loose spreading red-stemmed clusters, subglo- bose, white, tipped with the remnants of the style, about ^' in diameter, with thin dry and bitter flesh; and a full and rounded stone broader than high, somewhat oblique, slightly grooved on the edge, and 1 or 2-seeded; seeds nearly y long, with a pale brown coat. A tree, sometimes nearly 50° high, with a short trunk 8'-10' in diameter, thin CORNACE^ 717 erect wand-like branches forming a narrow irregular rather open head, and slender branchlets marked by numerous small pale lenticels, light green and puberulous when they first appear, pale red, lustrous, and puberulous during their first winter, light reddish brown in their second year, and ultimately light gray-brown or gray; usually shrubby. Winter-buds acute, compressed, pubescent, sessile, or stalked, about ^' long, with 2 pairs of opposite scales, the terminal nearly twice as large as the com- pressed lateral buds. Bark of the trunk about ^' thick, and divided by shallow fissures into narrow interrupted ridges broken into small closely appressed dark red- brown scales. Wood close-grained, hard, pale brown, with thick cream-colored sap wood. Distribution. Northern shores of Lake Erie to Minnesota, eastern Nebraska and Kansas, and through Missouri and the Indian Territory to eastern Texas, Missis- sippi, Alabama, South Carolina, and Florida; probably only arborescent on the rich bottom-lands of southern Arkansas and eastern Texas. 4. Cornus alternifolia, L. Dog-wood. Leaves mostly alternate, clustered at the ends of the branches, rarely opposite, oval or ovate, gradually contracted at the apex into long slender points, wedge- shaped or occasionally somewhat rounded at the base, obscurely crenulate-toothed on the slightly thickened and reflexed margins, when they unfold coated on the lower surface with dense silvery white tomentum, and faintly tinged with red and pilose above, and at maturity membranaceous, bright yellow-green, glabrous or sparsely pubescent on the upper, pale or sometimes nearly white and covered with appressed hairs on the lower surface, 3'-o' long, 2^-3^' wide, with broad orange- colored midribs slightly impressed above, and about 6 pairs of primary veins parallel with their sides, in the autumn turning yellow or yellow and scarlet; their petioles slender, pubescent, grooved, l^'-2' long, with enlarged clasping bases. Flowers cream color, opening from the beginning of May to the end of June on slender jointed pedicels ^'-\' long, in terminal flat puberulous many-flowered cymes l|^'-2^' wide, mostly on lateral branchlets; calyx cup-shaped, obscurely toothed; corolla- lobes narrow, oblong, rounded at the apex, |' long, reflexed after anthesis; style enlarged into a prominent stigma. Fruit in loose spreading red-stemmed clusters, ripening in October, subglobose, dark blue-black, |' in diameter, tipped with the 718 TREES OF NORTH AMERICA remnants of the style rising from the bottom of a small depression, with thin and bitter flesh; and an obovoid nutlet, pointed at the base, gradually longitudinally many-grooved, thick-walled, and 1 or 2-seeded; seeds lunate, \' long, with a thin membranaceous pale coat. A flat-topped tree, rarely 25°-30° high, with a short trunk C'-8' in diameter, long slender alternate diverging horizontal branches, and numerous short upright slender branchlets pale orange-green or reddish brown when they first appear, mostly light green or sometimes brown tinged with green during their first winter, later turning darker green and marked by pale lunate leaf-scars, and small scattered pale lenticels; often a shrub, with numerous stems. Bark of the trunk about ^' thick, dark reddish brown, and smooth or divided by shallow longitudinal fissures into narrow ridges irregularly broken transversely. "Wood heavy, hard, close-grained, brown tinged with red, with thick lighter colored sapwood of 20-30 layers of annual growth. Distribution. Rich woodlands, the margins of the forest, and on the borders of streams and swamps, in moist well-drained soil; New Brunswick and Nova Scotia, westward along the valley of the St. Lawrence River to the northern shores of Lake Superior and to Minnesota, and southward through the northern states and along the Alleghany Mountains to northern Georgia and Alabama. Occasionally cultivated as an ornamental plant in the eastern states. Section 2. Gamopetalse. Corolla of united petals (^divided in Elliottia in £Jricacece ; 0 in some species of Fraxinus in OleacecB) . A. Ovary superior (inferior in Vaccinium in Ericaceae ; partly inferior in Symplocaceo2 and Styraceoe), XLIX. ERICACE-ai. Trees or shrubs, with scaly buds, and alternate simple leaves without stip- ules. Flowers perfect, regular ; calyx 4^-lobed ; corolla hypogynous, 5-lobed {of Jf 'petals in Elliottia)^ the lobes imbricated in the bud; stamens hypogy- nous, mostly free from the corolla, as many, or twice as many as its lobes ; anthers introrse, 2-celled, opening by terminal pores, often appendaged ; ovary 4-10-celled (inferior in Vaccinium) ; styles terminal, simple ; stigma ter- minal; ovules numerous, anatropous or amphitropous ; raphe ventral; micro- pyle superior. Fruit capsular, drupaceous, or baccate. Seeds with fleshy or horny albumen ; embryo small ; cotyledons small and short. The Heath family with about sixty-seven genera is widely distributed over the temperate and tropical parts of the earth's surface. Of the twenty-one genera found in the United States seven have arborescent representatives. CONSPECTUS OF THE ARBORESCENT GENERA OF THE UNITED STATES. Ovary superior. Fruit capsular. Corolla of 4 petals ; flowers in erect terminal racemose panicles ; leaves deciduous. , 1. Elliottia. Capsule septicidal, the valves in opening separating from the persistent place ntiferous axis ; calyx-lobes imbricated in the bud ; leaves persistent. ERICACE^ 719 Flowers in terminal clusters ; corolla 5-cle£t ; inflorescence-buds conical, covered with closely imbricated scales ; leaves revolute on the margins. 2. Rhododendron. Flowers in axillary clusters ; corolla saucer-shaped, with a short narrow tube and 10 pouches below the short limb, the anthers in the pouches in the bud ; inflo- rescence-buds elongated, covered with loosely imbricated scales ; leaves flat. 3. Kalmia. Capsule loculicidal, the valves in opening bearing the partitions and separating from the persistent placentiferous axis ; calyx-lobes valvate in the bud. Capsule ovoid-pyramidal; flowers in terminal panicles of secund racemes ;, anther- cells opening longitudinally from the apex to the middle ; leaves deciduous. 4. Oxydendrum. Capsule oblong ; flowers in axillary fascicles ; anthers opening below the apex by 2 oblong pores ; leaves persistent. 5. Xylosma. Fruit drupaceous ; flowers in terminal panicles ; anthers bearing a pair of reflexed awns on the back, each cell opening at the apex anteriorally by a terminal pore ; leaves per- sistent. 6. Arbutus. Ovary inferior ; fruit baccate ; flowers axillary, racemose or solitary ; anther-cells termi- nating in tubular appendages and opening by terminal pores. 7. Vaccinium. 1. ELLIOTTIA, Ell. A glabrous tree or shrub, with slender terete branchlets, scaly buds, and fibrous roots. Leaves petiolate, oblong or obloug-obovate, acute at the ends or occasionally rounded at the apex, entire, membranaceous, dark green and glabrous above, pale and villose below, particularly on the thin yellow midribs and obscure forked veins, deciduous; their petioles slender and flattened, with an abruptly enlarged base nearly covering the small axillary buds. Flowers perfect, on slender elongated pedicels, in erect terminal elongated racemose panicles, with minute acute scarious caducous bracts and bractlets; calyx short, tubular, puberulous, dark red-brown, 4-toothed, the broad apiculate teeth erose on the margins and imbricated in the bud; petals 4, imbricated in the bud, spatulate-linear, sessile; stamens 8, hypogynous, shorter than the petals; filaments broad, flattened; anthers oblong-ovate, the cells callous-mu- cronate, free at the apex of the spreading lobes, opening from above downward; disk much thickened, fleshy; ovary sessile, subglobose, 4-lobed, 4-celled, concave at the apex; style elongated, slender, gradually enlarged and club-shaped above and incurved at the apex; stigma 3-o-lobed, smaller than the thickened end of the style; ovules numerous in each cell, attached on the inner angle of a tunaid placenta, ascending, anatropous. Fruit unknown. Elliottia with a single species is confined to the southern United States. The genus is named in honor of Stephen Elliott (1771-1830), the distinguished botanist of South Carolina. 1. Elliottia racemosa, Ell. Leaves 3'-4' long, I'-l^ wide; their petioles y-^' in length. Flovrers about i' long, opening from the middle to the end of June, in clusters 7'-10' in length. A tree, 15°-20° high, with a trunk 4'-5' in diameter, short ascending branches forming a pyramidal head, and erect branchlets light red-brown and pilose when they first appear, bright orange-brown, lustrous, and nearly glabrous during their first winter, and roughened by slightly raised oblong-obovate leaf-scars with con- spicuous central fibro-vascular bundle-scars, becoming light brown slightly tinged 720 TREES OF NORTH AMERICA with red during their second season and dark gray -brown the following year; or more frequently shrubby. Winter-buds terminal, broadly ovate, acute, about ^' long, with much thickened bright chestnut-brown shining scales conspicuously white- pubescent near the margins toward the apex, the lateral smaller, ovate, compressed, rounded or short-pointed at the apex. Bark thin, smooth, pale gray. Distribution. Sandy woods in a few isolated situations in the valley of the Savannah River, near Augusta, and in Burke and Bullock counties, Georgia, ^ 2. RHODODENDRON, Maxim. Trees or shrubs, with scaly bark, terete branchlets, terminal buds formed in sum- mer, and fibrous roots. Leaves usually clustered at the ends of the branches, revo- lute and entire on the margin. Flowers in terminal umbellate corymbs from buds with numerous caducous scales ; calyx 5-parted or toothed, persistent under the fruit; corolla 5-cleft, deciduous; stamens more or less unequal, ultimately spread- ing; filaments subulate-filiform, pilose at the base; disk thick and fleshy, crenately lobed; ovary o-celled; style slender, crowned with a capitate stigma and persistent on the fruit; ovules numerous in each cell, attached in many series to an axile 2-lipped placenta projected from the inner angle of the cell, anatropous. Fruit a woody septicidal many-seeded capsule. Seed scobiform; seed-coat loose, reticulate, produced at the ends beyond the nucleus into short often laciniate appendages; embryo minute, cylindrical, axile in fleshy albumen; cotyledons oblong, shorter than the radicle turned toward the hilum. Rhododendron (including Azalea) with more than two hundred species abounds in western Thibet and on the Himalayas, southwestern China, the Malay Peninsula and Archipelago, New Guinea, northern China and Corea, Japan, the mountains of central Asia, and in eastern and western North America. Of the seventeen or eigh- teen North American species one only is arborescent. Rhododendron possesses astringent narcotic properties. It produces hard close- grained compact wood sometimes used in turnery and for fuel. Many of the species are cultivated in gardens for the beauty of their large and conspicuous flowers. The generic name is from p65ov and SevSpov, the Rose-tree. ERICACE^ 721 1. Rhododendron maximum, L. Great Laurel. Rose Bay. Leaves revolute in the bud, ovate-lauceolate or obovate-lanceolate, acute or short- poiuted at the apex, narrowed or wedge-shaped or rounded at the narrow base, when they unfold covered with a thick pale or ferrugineous tomentum of gland-tipped hairs, and at maturity glabrous, thick and coriaceous, dark green and lustrous on the upper, usually pale or whitish on the lower surface, 4'-12' long, 1^-2^' wide, with broad pale midribs and obscure reticulate veinlets, persistent two or three years; their petioles stout, ridged above, rounded below, I'-l^' long. Flowers: inflorescence-buds surrounded at first by several loose narrow leaf-like scales, and when fully grown in September cone-shaped, 1^' long and ^' broad, with many imbricated ovate scales rounded and contracted at the apex into long slender points, beginning to open late in June after the shoots of the year from buds in the axils of upper leaves have reached their full length ; flowers on slender pink pedicels covered with glandular white hairs and furnished at the base with two linear scarious bract- lets from the axils of the scales of the inner ranks of the inflorescence-buds, in 16-24-flowered umbellate clusters 4'-5' in diameter, with accrescent scarious resinous puberulous bracts, those of the outer ranks becoming 1' long and |' wide, and shorter than the lanceolate bracts of the inner ranks contracted into long slender points; calyx light green and puberulous, with rounded remote lobes; corolla prominently 5-angled or ridged in the bud, campanulate, gibbous on the posterior side, puberulous in the throat, light rose color, purplish, or white, 1' long, cleft to the middle into oval rounded lobes, with conspicuous central veins, the upper lobe marked on the inner face by a cluster of yellow-green spots, and glandular on the outer surface at the bottom of each sinus, with a conspicuous dark red gland; stamens 8-12, white, inserted on the bright green disk; filaments enlarged and flattened at the base, slightly bent inward above the middle, and bearded with stiff white hairs, the 4 or 5 short ones at the back of the flower for more than half their length and the others only near the base; ovary ovate, green, coated with short glandular pale hairs, crowned with a long slender glabrous white declining style club-shaped and inflexed at the apex and terminating in a 5-rayed scarlet stigma. Fruit dark red-brown, ovate, ^' long, glandular-hispid, ripening and shedding its seeds in the autumn, the clusters of open capsules remaining on the branches until the following summer; 722 TREES OF NORTH AMERICA seeds oblong, flattened, the coat prolonged at the ends into scarious fringed ap- pendages. A bushy tree, 30°-40° high, with a short crooked often prostrate trunk occasionally 10'-12' in diameter, stout contorted branches forming a round head, and branchlets green tinged with red and covered with dark red or slightly ferrugineous gland- ular-hispid hairs when they first appear, dark green and glabrous in their first winter, gradually turning bright red-brown in their second year, and ultimately gray tinged with red, the thin bark separating on branches four or five years old into persistent scales; more often a broad shrub, with many divergent twisted stems 10°-12° high. Winter-buds: leaf-buds conical, dark green, axillary, or terminal on barren shoots, with many closely imbricated scales; those of the inner ranks accrescent, increasing in length from the outer to the inner, and at maturity 1^' long, Y wide, gradually narrowed at the base, and terminating at the apex in a long slender point, light green, glabrous, closely held against the shoot by a resinous exudation from the glandular hairs, and in falling marking the branchlet with numerous con- spicuous narrow remote scars persistent for three or four years. Bark of the trunk about Y^g' thick, light red-brown, broken on the surface into small thin appressed scales. Wood heavy,i.sk-. The development of the torus or roce]ita(le of a flower within the calyx or within the corolla and stamens. Dis.sejtimciit. A partition in an ovary or pericarp. Dorsal. Relating to the back. Dorsal suture. The line of opening of a carpel corre- sponding to its midrib. Drupaceous. Resembling or relating to a drupe. Drupe. A stone fruit. Duct. An elongated cell or tubular vessel found espe- cially in the woody parts of plants. Efilauduldr. Without glands. Ellipsoid. An elliptical solid. Elliptical. Oval or oblong with regularly rovmded euds. Emarginatc. Notched at the apex. Emhrijo. The rudimentary plant formed in the seed. Endocarp. The inner layer of a pericarp. Endogenous. Descriptive of Endogens, monocotyle- donous plants with stems increasing by internal accessions. Epicarp, The thin filmy external layer of a peri- carp. Epigynous. Placed on the ovary. Erose. Descriptive of an irregularly toothed or eroded margin. Excurrent. Running through the apex or beyond. Exocarp. The outer layer of a pericarp. Exogenous. Descriptive of Exogens, plants with stems increasing by the addition of a layer of wood on the outside beneath the constantly widening bark. Extrorse. Directed outward, descriptive of an anther opening away from the axis of the flower. Falcate. Scythe-shaped. Fascicle. A close cluster of leaves or flowers. Fascicled. Arranged in fascicles. Feather-veined. Having veins extending from the sides of the midrib. Ferrugineous. The color of iron rust. Fibro-vascular. Consisting of woody fibres and ducts. Filament. The stalk of an anther. Filamentose. Composed of threads. Fimbriate. Fringed. Fistidose. Hollow through the whole length. Flabellate. Fan-shaped ; much dilated from a wedge- shaped base with the broader end rounded. Foliaceous. Leaf -like in texture or appearance. Foliolate. Having leaflets. Foliole. A leaflet. Fkinicle. The stalk of an ovule or seed. Gamopetalse. Plants with corollas of coalescent petals. Gamopetalous. Descriptive of a corolla of coalescent petals. Geniculate. Bent abruptly like a knee. Gibbous. Swollen on one side. Glabrate. Nearly glabrous or becoming glabrous. Glabrous. Smooth, not pubescent or hairy. Gland. A protuberance on the surface, or partly im- bedded in the surface of any part of a plant, either secreting or not. Glandular. Furnished with glands. Glaucescent. Nearly or becoming glaucous. Glaucous. Covered or whitened with a bloom. Gymnospermse. Plants with naked seeds, that is, not inclosed in a pericarp. Gynophore. The stipe of a pistil. Heartivood. The mature and dead wood of an exoge- nous stem. Hermaphrodite. With staminate and pistillate organs in the same flower, eipiivalent to perfect. II Hum. Tlie scar or i)lace of attachment of a seed. Hirsute. Hairy, with coarse or btilf hairs. Ilisjiidulous. Minutely hispid. Ilypogynous. Under or free from the pistil. Imhricfde. Overlapping, like the shingles on a roof. Incumbent. Leaning or resting upon, as the radicle against the back of one of the cotyledons. Indu}>licate. With edges folded in or turned inward. Inferior. Said of an organ placed below another, like a calyx below an ovary or an ovary below a suiMjrior calyx. Inflorescence. Flower-duster. Infrapetiolar. Below the petioles. Innate. Borne on the apex of tlie supporting part ; in an anther the counterpart of adnate. Interpetiolar. Between the petioles. Introrse. Turned inward ; descriptive of an anther opening toward the axis of the flower. Ini'erse. Inverted. Involucre. A circle of bracts surrounding a flower- cluster. Invohde. Rolled inward. Laciniate. Cut into narrow incisions or lobes. Lactescent. Yielding milky juice. Lamellate. Composed of thin plates. Laminate. Composed of plates. Lanceolate. Shaped like a lance ; narrower than ob- long and tapering to the ends, or at least to the apex Leaf. Green expansions borne by the stem in which assimilation and the processes connected with it are carried on. Leaflet. The separate division of a compound leaf. Legume. The seed vessel of plants of the Pea fam- ily, composed of a solitary carpel normally dehis- cent only by the ventral suture. Lenticels. Lenticular corky growths on young bark. Lepidote. Beset with small scurfy scales. Linear. Said of a narrow leaf several times narrower than long, with parallel margins. Lobe. The division of an organ. Lobulate. Divided into small lobes. Loculicidal. Dehiscent into the cavity of a pericarp by the back, that is through a dorsal suture. Medullary rays. The rays of cellular tissue in a trans- verse section of an exogenous stem and extending from the pith to the bark. Membranaceous. Thin and pliable like a membrane. Micropyle. The spot or point in the seed at the place of the orifice of the ovule. Midrib. The central or main rib of a leaf. Monoecious. Unisexual, with the flowers of the two sexes borne by the same individual. 3Incro. A small and abrupt tip to a leaf. Mucronate. Furnished with a mucro. Muricate. Rough, with short rigid excrescences. Naked buds. Buds without scales. Nectar. The sweet secretion of various parts of a flower. Nectariferous. Nectar-bearing. Node. The portion of the stem which bears a leaf or whorl of leaves. Nucleus. The kernel of an ovule or seed. Nut. A hard and indehiscent 1 -seeded pericarp pro- duced from a compound ovary. Nutlet. A diminutive nut or stone. Obcordate. Inverted heart-shaped. Oblanceolate. Lanceolate but tapering toward the base more than toward the apex. Obovate. Ovate with the broader end toward the apex. Obovoid. Solid ovate with the broader end toward the apex. Obpyramidal. Inversely pyramidal. GLOSSARY OF TECHNICAL TERMS 817 Obtuse. Blunt or rounded at the apex. Operculate. Furnished with a lid. Orbicular. A fiat body circular in outline. Orthotropous. Descriptive of an ovule with a straight axis much enlarged at the insertion and the ori- fice at the other end. Oval. Broadly elliptical. Ovate. Of the shape of the longitudinal section of a hen's egg, with the broad end basal. Ovoid. Solid ovate or solid oval. Ovule. The part of the flower which becomes a seed. Palmate. Lobed or divided, with the sinuses point- ing to or reaching the apex of the petiole or insertion. Panicle. A loose compound flower-cluster. Papilionaceous. Butterfly-like. Papilliform. The shape of papillae. Papillate. Bearing papillae, minute nipple-shaped papillose projections. Parietal placenta. A placenta borne on the wall of the ovary. Pedicel. The stalk of a flower in a compound inflo- rescence. Pedicellate. Borne on a pedicel. Peduncle. A general flower-stalk supporting either a cluster of flowers, or a solitary flower. Pedunculate. Borne on a peduncle. Peltate. Descriptive of a plane body attached by its lower surface to the stalk. Penniveined. Same as pinuately veined. Perfect. Said of a flower with both stamens and pistil. Perianth. The envelope of a flower consisting of calyx, corolla, or both. Pericarp. The fructified ovary. Persistent. Said of leaves remaining on the branches over their first winter, and of a calyx remaining under or on the fruit. Petal. A division of the corolla. Petiolate. Having a petiole. Petiole. The footstalk of a leaf. Petiolulate. Having a petiolule. Petiolule. The footstalk of a leaflet. Pilose. Hairy, with soft and distinct hairs. Pinnse. The primary divisions of a twice pinnate leaf. Pinnate. A leaf with leaflets arranged along each side of a common petiole. Pistil. The female organ of a flower, consisting of ovary, style, and stigma. Pistillate. Said of a unisexual flower without fertile stamens. Pith. The central cellular part of a stem. Placenta. That part of the ovary which bears the ovules. Plumule. The bud or growing part of the embryo. Pollen. The fecundating cells contained in the an- ther. Polygamo-dicecious. Said of flowers sometimes per- fect and sometimes unisexual, the 2 forms borne on different individuals. Polygamo-moncecious. Said of flowers sometimes perfect and sometimes unisexual, the 2 forms borne on the same individual. Polygamous. Said of flowers sometimes perfect and sometimes unisexual. Pome. An inferior fruit of 2 or several carpels in- closed in thick flesh. Posterior. The side of an axillary flower next the axis of inflorescence. Prickle. Outgrowth of the bark. Proliferous. Bearing offshoots. ' Puberulent. Very slightly pubescent. Puberulous. Minutely pubescent. ■ Pubescence. A covering of short soft hairs. Pubescent. Clothed with soft short hairs. Pulvinate. Cushion-shaped. Punctate. Dotted with depressions or translucent internal glands, or with colored dots. Punctulate. Minutely punctate. Raceme. An indeterminate or centripetal inflores- cence with an elongated axis and flowers on pedicels of equal length. Rachis. The axis of a spike or of a compound leaf. Radial. Belonging to a ray. Radicle. The initial stem in an embryo. Receptacle. The axile portion of a blossom bearing sepals, petals, stamens, and pistils ; the axis or rhachis of the head, spike, or other flower-cluster. Reniform. Kidney-shaped. Resupinate. Upside down. Reticulate. Netted. Retrorse. Directed backward or downward. Retuse. With a shallow notch at a rounded apex. Revolute. Rolled backward from the margins or apex. Rhaphe. The adnate cord or ridge connecting the hilum wdth the chalaza in an anatropous ovule. Rhombic. Having the shape of a rhomb. Rhomboidal. Approaching a rhombic outline ; quad- rangular with the lateral angles obtuse. Rind. The bark of some endogenous stems, like that of Palms. Rostrate. Narrowed into a slender tip. Rotate. Circular, flat and horizontally spreading. Rugose. Wrinkled. Rugulose. Slightly wrinkled. Ruminate. Looking as if chewed, like the albumen of the nutmeg. Sagittate. Shaped like an arrowhead. Samara. An indehiscent winged fruit. Sapwood. The young living wood of an exogenous stem. Scales. Thin scarious bodies, usually degenerate leaves. Scarious. Thin, dry and membranaceous, not green. Scobiform. Having the appearance of sawdust. Scorpioid. A form of unilateral inflorescence circi- nately coiled in the bud. Scurfy. Covered with small bran-like scales. Seed. The fertilized and mature ovule, the result of sexual reproduction in a flowering plant. Segment. One of the divisions into which a leaf, calyx, or corolla may be divided. Semianatropous. Same as amphitropous. Sepals. The divisions of a calyx. Septicidal. Descriptive of a capsule splitting through the lines of junction of the carpels. Septum. A partition. Serrate. Beset with teeth. Serrulate. Serrate with small fine teeth. Sessile. Without a stalk. Setose. Beset with bristles. Setulose. Beset with minute bristles. Sheath. A tubular or enrolled part or organ. Sinistrorse. Turned or directed to the left. Sinus. A recess between the lobes of a leaf. Spatulate. Oblong with the lower end attenuated. Spike. An indeterminate inflorescence with flowers sessile on an elongated common axis. Spine. A sharp-pointed woody body, commonly a modified branch or stipule. Spinescent. Ending in a spine. Spinose. Furnished with spines. Stamen. One of the male organs of a flower. Staminate. Said of unisexual flowers without pistils. Staminodium. A sterile or much reduced stamen. Stigma. The part or surface of a pistil which receives the pollen for the fecundation of the ovules. Stigmatic. Relating to the stigma. Stipe. A stalk-like support of a pistil or of a carpel. Stipel. An appendage to a leaflet analagous to the stipules of a leaf. Stipitate. Having a stipe. Stipulate. Having stipules. Stipules. Appendages of a leaf, placed one on each side of the petiole at its insertion. Stomata. Breathing pores or apertures in the epider- mis of leaves connecting internal cavities with the external air. Stomatiferous. Furnished with stomata. 818 GLOSSARY OF TECHNICAL TERMS Stone. Tlie hard endocarp of a drupe. Strobile. The same as cone. Strophiolatc. Said ot a seed bearing a stropliiole or appendage at the hiluni. Style. The attenuated portion of a pistil betweeu the ovary and the stij;uia. Subcuiddte. SUghtly cordate. Subulate. Awl-sliaped. Sulcate. Grooved or furrowed. Superior. Growing or placed above; also in a lateral nower for the side next the axis. Suture. A junction, usually a line of opening of a carpel. Syncarp. A multiple fruit. Taproot. The primary descending root, a direct con- tinuation from the radicle. Tegmen. The inner coat of a seed. Testa. The outer seed-coat. Thyrsoidal. Relating to a thyrsus. Thyrsus. A mixed inflorescence with the main axis indeterminate and the secondary or ultimate clus- ters cyniose. Toinento.se. Densely pubescent with matted wool or tomentum. Tomentulose. Slightly pubescent with matted wool. Torose. Cylindrical, with contractions or bulges at intervals. Torulose. Slightly torose. Toms. The same as the receptacle of a flower. Transverse. Horizontal. Trichotomous. Three-forked. Trifoliate. Three-leaved. Trifoliolate. Descriptive of leaves, with 3 leaflets. Truncate. As if cut off at the end. Tubercle. A small tuber or excrescence. Tuberculate. Beset with knobby excrescences. Turbinate. Top-shaped. Turgid. Swollen. Umbel. An inflorescence with numerous pedicels springing from the same point like the rays of an umbrella. Umbilicus. The hilum of a seed. Umbo. A boss or protuberaiice. U inbonatc. Bearing an umbo. Uncinate. Hooked, bent, or curved at the tip in the form of a hook. Unequally pinnate. Pinnate, witli an odd terminal leaflet. Unguieulate. Contracted at the base into a claw or stalk. Uni.sexual. Said of flowers with either the stamens or pistil 0 or abortive. Urceolate. Hollow and contracted at or below the mouth like an urn or pitcher. Utricle. A small bladdery pericarp. Valvate. Said of a flower-bud in which the parts meet without overlapping. Valve. One of the pieces into which a capsule splits. Vei7ilet. One of the ultimate or smaller ramifications of a vein. Vei7is. Ramifications or threads of fibro-vascular tissue in a leaf or other flat organ. Ventral. Belonging to the anterior or inner face of a carpel. Ventricose. Swelling unequally or inflated on one side. Vernation. The disposition of parts in a leaf-bud. Verrucose. Covered with wart-like elevations. Versatile. Said of an anther turning freely on its filament. Verticillate. Arranged in a circle or whorl round an axis. Villose. Hairy, with long and soft hairs. Whorl. An arrangement of branches or leaves in a circle round an axis. Wood. Tlie hard part of a stem mainly composed of wood-cells, wood fibre, or tissue. J INDEX Names of Classes, Subclasses, Families, and Subfamilies are in small capitals ; Latin and English names of admitted genera and species in roman type ; synonyms in italics. Abies, 55. Abies amabilis, 59. Abies balsamea, 58. Abies concolor, 62. Abies Fraseri, 57. Abies grandis, 60. Abies lasiocarpa, 61. Abies magnifica, 66. Abies magnifica,var. Shastensis, 67. Abies nobilis, 65. Abies venusta, 63. Abietinle, 1. Acacia, 540, 572. Acacia Farnesiana, 541 . Acacia, Green-barked, 562, 563. Acacia Greggii, 544. Acacia tortuosa, 542. Acacia Wrightii, 543. Acer, 625. Acer circinatum, 630. Acer Floridanum, 634. Acer glabrum, 631. Acer grandidentatum, 637. Acer leucoderme, 636. Acer macrophyllum, 627. Acer Negundo, 641. Acer Negundo, var. Califomicum, 643. Acer nigrum, 634. Acer Pennsylvanicum, 627. Acer rubrum, 639. Acer rubrum, var. Drummondii, Acer rubrum, var. tridens, 641. Acer saccharinum, 638. Acer Saccharum, 032. Acer Saccharum, var. Floridanum^ 634. Acer Saccharum, var. grandidenta- tum, 637. Acer Saccharum, var. leucoderme, 636. Acer Saccharum, var. Rugelii, 633. Acer spicatum, 626. ACERACE^, 624. .^sculus, 644. .^sculus austrina, 647. .ffisculus Californica, 648. .^sculus glabra, 644. .^sculus glabra, var. Buckleyi, 646. .lEsculus octandra, 646. jEscuIus octandra, var. hybrida, 647. Alder, 208. Almond Willow, 170. Alnus, 208. Ahius acuminata, 214. Alnus maritima, 215, Alnus oblongifolia, 214. Alnus Oregona, 210. Alnus rhombifolia, 212. Alnus Sitchenis, 209. Alnus tenuifolia, 211. Amelanchier, 360. Amelanchier alnifolia, 362. Amelanchier Canadensis, 360. Amelanchier Canadensis, var. to- mentula, 361. Amelanchier obovalis, 361. Amyris, 588. Amyris Elemifera, 588. Anacahuita, 783. Anacardiace^, 601. Anamomis, 698. Anamomis dichotoma, 698. Anaqua, 786. Andromeda femiginea, 726. Angiosperm^, 102. Anona, 328. Anona glabra, 328. Anonace^, 326. Ants' Wood, 744. Apetal^, 125. Apple, 351. Apple, Crab, 352, 353, 354, 355. Apple, Haw, 399. Apple, Pond, 328. Apple, Turkey, 436. Aquifoliace^, 613. Aralia, 704. Aralia spinosa, 705. Araliace^, 704. Arbor-vitee, 74. Arbutus, 727. Arbutus Arizonica, 730. Arbutus Menziesii, 728. Arbutus Xalapensis, 729. Ash, 758. Ash, Black, 764. Ash, Blue, 761. Ash, Green, 771. Ash, Mountain, 356, 768. Ash, Prickly, 582. Ash, Pumpkin, 772. Ash, Red, 770. Ash, Swamp, 762. Ash, Wafer, 587. Ash, Water, 762, 763. Ash, White, 767. Ash-leaved Maple, 641. Asimina, 326. Asimina triloba, 326. ' Asp, Quaking, 154. Aspen, 154. Avicennia, 789. Avicennia nitida, 790. Bald Cypress, 70, 71. Balm of Gilead, 159. Balsam, 157. Balsam Cottonwood, 161. Balsam Fir, 57, 58, 61. Balsam, She, 57. Bark, Georgia, 799. Basket Oak, 271. Bass Wood, 671, 673, 675. Bay, 678. Bay, Loblolly, 678. Bay, Red, 330. Bay, Rose, 721. Bay, Swamp, 317, 331 Bay, Sweet, 317. Bean, Coral, 5G5. Bean, Horse, 560. Bean, Indian, 793. Bean, Screw, 550. Bear Oak, 241. Bearberry, 664. Beech, 217. Beech, Blue, 190. Bee-tree, 674. Betula, 194. Betula Alaskana, 206. Betula coerulea, 201. Betula coerulea, var. Blanchardi, 202. Betula fontinalis, 207. Betula Kenaica, 205. Betula lenta, 196. Betula lutea, 197. Betula nigra, 198. Betula occidentalis, 204. Betula papyrifera, 202. Betula pap3rrifera, var. cordifolia, 202. Betula populifolia, 200. Betulace^, 189. Big Bud Hickory, 143. Big Shellbark, 141. Big Tree, 69. BiGNONIACEyE, 791. Bilsted, 340. Birch, 194, 204. Birch, Black, 196, 205, 207. Birch, Blue, 201. Birch, Canoe, 202. Birch, Cherry, 196. Birch, Gray, 197, 200. Birch, Paper, 202. Birch, Red, 198, 205. Birch, River, 198. Birch, West Indian, 592. Birch, White, 200, 206. Birch, Yellow, 197. Bird Cherries, 510. Bird Cherry, 521. Bitter Pecan, 134, 137. Bitternut, 135. Black Ash, 764. Black Birch, 196, 205, 207. Black Calabash Tree, 797. Black Cottonwood, 150, 161. Black Haw, 810, 811. Black Ironwood, 660. Black Jack, 245. Black Mangrove, 790. Black Maple, 634. Black Oak, 234, 237, 239, 286. Black Oaks, 227. Black Olive Tree, 702. Black Persimmon, 750. Black Sloe, 518. 820 INDEX Black Spruce, 39. Black Walnut, 128. Black Willow, 1G8, 100, 171, 173, 1.S4. BloUy, 314. Blue Asli, 701. Blue Beech, 10. Blue Myrtle, 007. Blue Oak, 277. Blue Spruce, 44. BORRAGINACE^, 781. Bottom Shellbark, 141. Bourreria, 784. Bourreria Havauensis, 784. Bourreria Havaueusis, var. radula, 784. Bow Wood, 307. Box Elder, 041, 043. Box Wood, 023. Brittle Thatch, 105, 106. Broad-leaved Maple, 027. Bucida, 702. Bucida Buceras, 702. Buckeye, 047, ()48. Buckeye, Fetid, 044. Buckeye, Ohio, 044. Buckeye, Spanish, 056. Buckeye, Sweet, 040. Buckthorn, 743. Bull Pine, 15, 23. Bumelia, 740. Bumelia augustifolia, 744. Bumelia lanuginosa, 741. Bumelia lanuginosa, var. rigida, 742. Bumelia lycioides, 743. Bumelia tenax, 741. Burning Bush, 620. Burr Oak, 267. Bursera, 591. Bur.T;era Siniaruba, 592. BURS5RACE.E, 591. Bush, Button, 802. Bush, Stag, 811 . Bustic, 739. Butternut, 126. Button Bush, 802. Buttonwood, 344, 701, 703. Cabbage Palmetto, 108. Cabbage Tree, 108. CACTACE.E, 684. C^SALPINIOID^, 534. Calabash Tree, Black, 797. California Laurel, 334. California Lilac, 007. California Nutmeg, 98. Calyptranthes Chytraculia, 699. Canada Plum, 511. Canella, 680. Canella Winterana, 680. CANELLACE.E, 080. Canoe Birch, 202. Canoe Cedar, 75 Canotia, 623. Canotia holacantha, 624. Capparidace^, 338. Capparis, 338. Capparis Jamaicensis, 338. Capkifoliace^, 804. Carica, 682. Carica Papaya, 683. Caricace^, 682. Carpinus, 190. Carpinus Caroliniana, 190. Cassada, 739. Cassena, 616. Cassie, 541. Castauea, 219. Castanea dentata, 220. Castanea puinila, 221. Castanopsis, 222. Ca-stanopsis chrysophylla, 223. Catalpa, 792. Catalpa Catalpa, 793. Catalpa speciosa, 795. Catalpa, Western, 795. Cat's Claw, .^)35, 543, 544. Ceanothus, 0()5. Ceanothus arboreus, 666. Ceanothus spinosus, 007. Ceanothus thyrsitiorus, 007. Ceanolhu-s vdutimcs, var. arboreus, 006. Cedar, 93. Cedar, Canoe, 75. Cedar Elm, 294. Cedar, Incense, 73. Cedar Pine, 28. Cedar, Port Orford, 84. Cedar, Red, 75, 94, 95, 96. Cedar, Rock, 93. Cedar, Stinking, 98. Cedar, White, 74, 82. Celastrace^, 619. Celtis, 298. Celtis Mississippiensis, 300. Celtis Mississippiensis, var. reticu- lata, 301. Celtis occidentalis, 299. Celtis occidentalis, var. pumila, 300. Cephalanthus, 801. Cephalanthus occidentalis, 802. Cercidium, 562. Cercidium floridum, 562. Cercidium Torreyanum, 563. Cercis, 551. Cercis Canadensis, 552. Cercis Texensis, 553. Cercocarpus, 504. Cercocarpus breviflorus, 508. Cercocarpus ledifolius, 507. Cercocarpus ledifolius, var. intri- catus, 508. Cercocarpus parvifolius, 506. Cercocarpus parvifolius, var. betu- loides, 507. Cercocarpus Traskise, 505. Cereus, 085. Cereus giganteus, 685. Chamaecyparis, 81. Chamaecyparis Lawsoniana, 84. Chamaecyparis Nootkatensis, 83. Chamfecyparis thyoides, 82. Chapote, 750. Checkered-bark Jtmiper, 90. Cherry, 509, 733. Cherry Birch, 196. Cherry, Bird, 521. Cherry, Choke, 523. Cherry, Indian, 603. Cherry Laurels, 510. Cherry, Rum, 524. Cherry, Wild, .522, 526, 527. Cherry, Wild Black, 524. Cherry, Wild Red, 521. Chestnut, 219. Chestnut, Golden -leaved, 223. Chestnut Oak, 225, 272, 273. Chestnut Oaks, 229. Chickasaw Plum, 515. Chilopsis, 791. Chilopsis linearis, 792. China-tree, Wild, 652. Chinquapin, 221, 223. Chionanthus, 777. Chionanthus Virginica, 778. Chittam Wood, 602, 741. Choke Cherry, 523. ChoUa, 688. Chrysobalanus, 532. Chrysobalanus Icaco, 532. CliryHopliylluui, 745. CliryHophylluni oliviforme, 745. ChytracuUa, c.'.i'.l. Chytraculia Cliytraculia, 699. Cinnamon Bark, 680. Cimiamon, Wild, 680. Citharexylon, 787. Citharexylon villosum, 788. Cladrastis, 567. Cladrastis lutea, 568. Clammy Locust, 574. Cliftonia, 612. Cliftonia monophylla, 612. Coccolobis, 311. Coccolobis laurifolia, 312. Coccolobis uvifera, 311. Coccothrinax, 100. Coccothrinax jucunda, 106. Cock-spur Thorn, 368. Cocoa Plum, 532. Coffee-tree, 664. Coffee-tree, Kentucky, 554. Colubrina, 668. Colubrina reclinata, 669. COMBRETACE^, 700. Condalia, 057. Condalia obovata, 658. CONIPERiE, 1. Conocarpus, 700. Conocarpus erecta, 701. Conocarpus erecta, var. sericea, 701. Coral Bean, 505. Cordia, 781. Cordia Boissieri, 783. Cordia Sebestena, 782. Cork Elm, 290. Cork Wood, 151. CORNACEiE, 706. Coi'nus, 712. Comus alternifolia, 717. Comus asperfolia, 716. Cornus florida, 713. Cornus Nuttallii, 714. Cotmus, 601. Cotinus Americauus, 602. Cotton Gum, 711. Cottonwood, 160, 162, 163, 164, 165. Cottonwood, Balsam, 101. Cottonwood, Black, 156, 161. Cottonwood, Narrow-leaved, 159. Cottonwood, Swamp, 156. Cow Oak, 271. Crab Apple, 352, 353, 354, 355. Crab, Fragrant, 353. Crab, Soulard, 355. Crab Wood, GOO. Crataegus, 363. Crataegus acclivis, 450. Crataegus acutifolia, 375. CratEegus aestivalis, 399. Crataegus algens, 374. Crataegus amnicola, 392. Crataegus annosa, 483. Crataegus anomala, 440. Crataegus apiifolia, 486. Crataegus apiomorpha, 414. Crataegus aprica, 485. Crataegus arborea, 377. Crataegus Arduennae, 373. Crataegus Arkansana, 425. Crataegus Arnoldiana, 437. Crataegus Ashei, 469. Crataegus assurgens, 445. Crataegus atrorubens, 408. Crataegus basilica, 420. Crataegus berberifolia, 383. Crataegus Berlandieri, 429. Crataegus blanda, 405. Crataegus Boyntoni, 462. INDEX 821 Crataegus brachyacantha, 489. Crataegus Brazoria, 395. Crataegiis Buckleyi, 403. Crataegus Busliii, 376. Crataegus Canadensis, 428. Crataegus Canbyi, 369. Crataegus Champlainensis, 438. Crataegus Chapmani, 493. Crataegus coccinea, 459. Crataegus coccinioides, 458. Crataegus collina, 391. Crataegus consanguinea, 472. Crataegus cordata, 487. Crataegus corusca, 430. Crataegus crocina, 385. Crataegus Crus-galli, 368. Crataegus Crus-galli, var. capillata, 369. Crataegus Crus-galli, var. oblon- gata, 369. Crataegus Crus-galli, var. pyra- canthifolia, 369. Crataegus Crus-galli, var. salicifo- lia, 369. Crataegus Dallasiana, 396. Crataegus delecta, 451. Crataegus denaria, 379. Crataegus depLlis, 419. Crataegus Deweyana, 496. Crataegus dilatata, 455. Crataegus dispar, 484. Crataegus Douglasii, 502. Crataegus Eamesi, 454. Crataegus edita, 382. Crataegus edura, 384. Crataegus EUwangeriana, 441. Crataegus Engelmanni, 378. Crataegus erecta, 375. Crataegus fastosa, 393. Crataegus fecunda, 371. Crataegus fera, 386. Crataegus flava, 471. Crataegus Floridana, 476. Crataegus Gaultii, 494. Crataegus gemmosa, 498. Crataegus Georgiana, 413. Crataegus glabriuscula, 404. Crataegus gravida, 426. Crataegus Harbisoni, 468. Crataegus Hillii, 444. Crataegus Holmesiana, 4-19. Cratr«gus Hudsonica, 457. Crataegus igiiava, 475. Crataegus lUinoiensis, 499. Crataegus induta, 436. Crataegus ingens, 409. Crataegus Integra, 481. Crataegus integriloba, 500. Crataegus Jonesae, 460. Crataegus Kelloggii, 431. Crataegus lacera, 421. Crataegus lacrimata, 477. Crataegus lanuginosa, 435. Crataegus Lettermani, 397. Crataegus lobulata, 447. Crataegus lucoriun, 418. Crataegus macracantha, 501. Crataegus Margaretta, 4G1. Crataegus micracantha, 410. Crataegus mitis, 407. Crataegus Mohri, 387. Crataegus mollis, 423. Crataegus Neo-Londinensis, 443. Crataegus nitida, 406. Crataegus opima, 466. Crataegus ovata, 402. Crataegus Palmeri, 381. Crataegus panda, 480. Crataegus paucispina, 415. Crataegus pausiaca, 390. Crataegus pedicellata, 448. Crataegus penita, 409. Crataegus pentandra, 416. Crataegus Peoriensis, 370. Crataegus pratensis, 398. Crataegus Pringlei, 446. Crataegus pruinosa, 411. Crataegus punctata, 389. Crataegus pjTiformis, 434. Cratffigus quercLna, 433. Crataegus Ravenelii, 478. Crataegus recurva, 482. Crataegus regalis, 372. Crataegus rivularis, 503. Crataegus Robur, 467. Crataegus saligna, 490. Crataegus Sargenti, 465. Crataegus senta, 479. Crataegus sera. 424. Crataegus sertata, 453. Crataegus signata, 380. Crataegus silvicola, 417. Crataegus sordida, 395. Crataegus spathulata, 488. Crataegus submollis, 439. Crataegus suborbiculata, 456. Crataegus succulenta, 497. Crataegus tersa, 383. Crataegus Texana, 432. Crataegus tomentosa, 492. Crataegus Treleasei, 427. Crataegus tristis, 473. Crataegus vegeta, 495. Crataegus venusta, 464. Crataegus verruculosa, 394. Crataegus viridis, 401. Crattegus visenda, 474. Crataegus vulsa, 403. Crescentia, 796. Crescentia cucurbitina, 797. Cucumber-tree, 319. Cucumber-tree, Larged-leaved, 320. Cucumber-tree, Long-leaved, 322. CupRESsiNi.*:, 2. Cupressus, 77. Cupressus Arizonica, 78. Cupressus Goveniana, 79. Cupressus Lawsoniana. 84. Cupressus Macnabiana, 80. Cupressus macrocarpa. 77. Cupressus Nootkatensis, 83. Cupressus pygraaea, 79. Cupressus thyoides, 82. Cypress, 77, 78, 79, 80. Cypress, Bald, 70, 71. Cypress, Deciduous, 71. Cypress, Lawson, 84. Cypress, Monterey, 77. Cypress, Sitka, 83. Cypress, Yellow, 83. Cyrilla, 611. Cyrilla racemiflora, 611. Cyrillace^, 610. Dahoon, 615. Dalea, 570. Dalea spinosa, 570. Darling Plum, 659. Deciduous Cypress, 71. Desert Palm. 110. Desert Willow, 792. Devil Wood, 779. Dicotyledons, 125. Digger Pine, 23. Diily, Wild, 747. Diospyros, 748. Diospj^ros Texana, 750. Diospyros Virginiana, 749. Dipholis, 738. Dipholis .salicifolia, 739. Dogwood, 712. Dogwood, Flowering, 713. Dogwood, Jamaica, 578. Dogwood, Poison, 608. Douglas Spruce, 53. Downward Plum, 744. Drypetes, 595. Drypetes Keyensis, 595. Drypetes lateriflora, 597. Dwarf Maple, 031. EBENACaE, 748. Ebony, 537. Ehretia, 785. Ehretia elliptica, 786. Elder, 805. Elder, Box, 641, 643. Elkwood, 321. EUiottia, 719. Elliottia racemosa, 719. Elm, 287. Elm, Cedar, 294. Elm, Cork, 290. Elm, Red, 293, 295. Elm, Rock, 290. Elm, SUppery, 293, 676. Elm, Water, 297. Elm, White, 289. Elm, Winged, 291. Encina, 256. Engelmann Spruce, 43. Ericace^, 718. Eugenia, 693. Eugenia axillaris, 695. Eugenia buxifolia, G94. Eugenia confusa, 697. Eugenia Garheri. 097. Eugenia monticola, 095. Eugenia procera, 096. Eugenia rhombea, 696. EUPHORBIACEiE, 594. Evergreen Oak, 278. Evonymus, 619. Evonymus atropui'pureus, 620. Exostema, 800. Exostema Caribaeum, 800. Exothea, 653. Exothea paniculata, 653. Eysenhardtia, 569. Eysenhardtia orthocarpa, 569. Fagace^. 216. Fagara, 581. Fagara Clava^Herculis, 582. Fagara coriacea, 584. Fagara Fagara, 581. Fagara flava, 583. Fagus, 217. Fagus Americana, 217. Fan Palm, 110. Farkleberry, 732. Feltleaf Willow, 188. Fetid Buckeye, 644. Ficus. 308. Ficus aurea, 308. Ficus populnea, 310. Fiddle Wood, 788. Fig, 308. Fig, WUd, 308, 310. Fir, 55. Fir, Balsam, 57, 58, 61. Fir. Red, 53, 65, 66, 67. Fir, Silver, 63. Fir, White, 59, 60, 62. Flowering Dogwood, 713. Foxtail Pine, 8, 9. Foxtail Pines, 3. Fragrant Crab, 353. Franklinia, 679. Fraxinus, 758. Fraxinus Americana, 767. Fraxinus Americana, var. micro- carpa, 767. \ 822 INDEX Fraxinus anomala, 7G5. Fraximis IJerliuidieriana, 709. Fraxinus liiltiiioreiuia, 773. Fraxiuus Caroliniana, 7G'2. Fraxinus coriacea, 775. Fraxinus cuspidata, 75;). Fraxinus Floridana, 7(>3. Fraxinus Grepgii, 7('>0. Fraxinus nigra, 7(54. Fraxinus Oregona, 77(). Fraxinus Pennsylvanica, 770. Fraxinus Pemisylvanica, var. lan- ceolata, 771. Fraxinus profunda, 772. Fraxinus quadrangulata, 761. Fraxinus Texensis, 7(>S. Fraxiuus velutiiia, 774. Fremontodeudron, G76. Fremontodeudron Californicum, G7G. Frijolito, 565. Friuge-tree, 778. ' Gamopetal^, 718. Geiger-tree, 782. Georgia Bark, 7'J9. Glaucous Willow, 182. Gleditsia, 555. Gleditsia aquatica, 558. Gleditsia Texaua, 557. Gleditsia triacanthos, 556. Golden-leaved Chestnut, 223. Gordonia, C77. Gordonia Altamaha, 679. Gordouia Lasianthus, 678. Grape, Sea, 311. Gray Birch, 197, 200. Gray Pine, 27. Great Laurel, 721. Green Ash, 771. Green-barked Acacia, 562, 563. Guaiacum, 579. Guaiacum sanctum, 579. Guettarda, 803. Guettarda elliptica, 803. Guiana Plum, 597. Gum, Cotton, 711. Gum Elastic, 741. Gum, Hog, 603. Gum, Sweet, 340. Gum, Tupelo, 711. Gumbo Limbo, 592. Gurgeon Stopper, 694. Gyminda, 621. GjTninda Grisebachii, 621 . Gyminda Grisebachii, var. glauce- scens, 622. Gymnanthes, 599. Gymnanthes lucida, 600. GjTnnocladus, 553. Gymnocladus dioicus, 554. Gtmnosperm^, 1. Hackberry, 299, 300. Hamamelidace.*;, 339. Hamamelis, 341. Hamamelis Virginiana, 342. Haw, Apple, 399. Haw, Black, 810, 811. Haw, May, 399. Haw, Parsley, 486. Haw, Purple, 658. Haw, Red, 447. Haw, Scarlet, 459. Hawthorn, 363. Hazel, Witch, 341. Helietta, 585. Helietta parvifolia, 586. Hemlock, 47, 48, 49, 50, 54. Hemlock, Mountain, 51. Hercules' Club, 705. HeteromeleB, 358. Heteromeles arbutifolia, 359. Hickory, 131, 145. Hickory, Big Bud, 143. Hickory, Nutmeg. 136. Hickory Pine, 9, 33. Hickory, Shagbark, 139, 140. Hickory, Shellbark, 139. Hickory, Swamp, 135. Hickory, Water, 137. Hicoria, 131. Hicoria alba, 143. Hicoria aquatica, 137. Hicoria Carolinye - septentrionalis, 140. Hicoria glabra, 144. Hicoria glabra, var. odorata, 145. Hicoria lacinio.sa, 141. Hicoria minima, 135. Hicoria myristicaeformis, 136. Hicoria ovata, 139. Hicoria Pecan, 133. Hicoria Texaua, 134. Hicoria villosa, 145. Hippocastanace.*;, 643. Hippomane, 598. Hippomane Maucinella, 599. Hog Gum, 603. Holly, 014. Honey Locust, 548, 556. Hop Hornbeam, 191, 192. Hop-tree, 587. Hornbeam, 190. Hornbeam, Hop, 191, 192. Horse Bean, 560. Horse Sugar, 752. Huajillo, 536. Huisache, 541. Hypelate, 654. Hypelate trifoliata, 654. Icacorea, 733. Icacorea paniculata, 733. Icthyomethia, 577. Icthyomethia Piscipula, 578. Ilex, 614. Ilex Casshie, 615. Ilex decidua, 617. Ilex monticola, 618. Ilex opaca, 614. Ilex vomitoria, 616. Incense Cedar, 73. Indian Bean, 793. Indian Cherry, 663. Ink Wood, 653. Ironwood, 192, 193, 351, 576, 611, 612, 653, 741, 743. Ironwood, Black, 660. Ironwood, Red, 659. Ironwood, White, 654. Islay, 530. Jack Oak, 245. Jack Pine, 27. Jacquinia, 735. Jncquinia armillaris, 735. Jacquinia Keyensis, 735. Jamaica Dogwood, 578. Jersey Pine, 30. Joe Wood, 735. Joshua Tree, 122. Judas-tree, 552. JuGLANDACE.aE, 125. Juglans, 126. Juglans Californica, 130. Juglans cinerea, 126. Juglans nigra, 128. Juglans rupestris, 129. Juniper, 85, 86, 87, 88, 89, 90, 91, 92. Juniper, Checkered-bark, 90. Juniperus, 85. JuniperuH Barbadensis, 95. Juniperus Californica, 87. Juniperus communis, 86. Juniperus communis, var. Sibirica, 87. Jimiperus flaccida, 89. • Juniperus monosperma, 92. Juniperus occidentalis, 91. Junii»eru8 pachyphla?a, 90. Juniperus sabinoides, 93. Juniperus scopulorum, 96. Juniperus Utahensis, 88. Juniperus Virginiana, 94. Kalmia, 722. Kalmia latifolia, 723. Kentucky Coffee-tree, 554. Knackaway, 786. Knob-cone Pine, 22. Koeberlinia, 681. Ka'berlinia spino.sa, 682. KCEBERLINIACE^, 681. Krugiodendron, 660. Krugiodendron ferreum, 660. Laguncularia, 703. Laguncularia racemosa, 703. Larch, 34, 35, 65. Large-leaved Cucumber-tree, 320. Larix, 34. Larix Americana, 35. Larix Lyallii, 37. Larix occidentalis, 36. LauracejE, 329. Laurel, 723. Laurel, California, 334. Laurel, Great, 721. Laurel, Mountain, 723. Laurel Oak, 251. Lawson Cypress, 84. Leaf, Sweet, 752. Leather Wood, 611. LegtjminosjE, 533. Leitnerla, 151. Leitneria Floridana, 151. LElTNERIACEiE, 150. Leucsena, 545. Leucsena Greggii, 545. Leucsena pulverulenta, 546. Libocedrus, 72. Libocedrus decurreus, 73. Lignum-vitae, 579. Lilac, 667. Lilac, California, 667. LlLIACE^, 115. Limbo, Gumbo, 592. Lime, Ogeechee, 710. Lime, Wild, 581. Linden, 670. Liquidambar, 339. Liquidambar Stjrraciflua, 340. Liriodendron, 324. Liriodendron Tulipifera, 325. Live Oak, 253, 256, 257, 284. Loblolly Bay, 678. Loblolly Pine, 19. Locust, 557, 571. Locust, Clammy, 574. Locust, Honey, 548, 556. Locust, Water, 558. Locust, Yellow, 572. Lodge Pole Pine, 27. Log Wood, 658. Long-leaved Cucumber-tree, 322. Long-leaved Pine, 17. Lyonotliamnus, 350. Lyonothamnus floribundus, 351. Lysiloma, 538. Lysiloma Bahamensis, 539. . Lysiloma latisiliqua, 539. INDEX 823 Madroua, 728, 729, 730. Magnolia, 315. Magnolia acuminata, 319. Magnolia acuminata, var. cordata, 320. Magnolia foetida, 316. Magnolia foetida, var. Exoniensis, 317. Magnolia Fraseri, 322. Magnolia glauca, 317. Magnolia glauca longifolia, 318. Magnolia macrophylla, 320. Magnolia major, 318. Magnolia, Mountain, 319, 322. Magnolia pyramidata, 324. Magnolia Thompsoniana, 318. Magnolia tripetala, 321. MAGN0LIACE.E, 315. Mahogany, 5U3, G09. Mahogany, Mountain, 504. Mains, 351. Malus angustifolia, 352. Malus coronaria, 353. Malus loensis, 354. Malus rivularis, 355. Malus Soulardi, 355. Manchineel, 599. Mangrove, G91. Mangrove, Black, 790. Mangrove, White, 703. Maple, 625. Maple, Ash-leaved, 641. Maple, Black, 634. Maple, Broad-leaved, 627. Maple, Dwarf, 631. Maple, Mountain, 626. Maple, Red, 639, 641. Maple, Rock, 632. Maple, Scarlet, 639. Maple, Silver, 638. Maple, Soft, 638. Maple, Striped, 627. Maple, Sugar, 632, 634, 636, 637. Maple, Vine. 630. Marlberry, 733. Marsh Pine, 20. Mastic, 737. Maul Oak, 257. May Haw, 399. Meliace^, 593. Mesquite, 547. Mesquite, Screw Pod, 550. Metopium, 603. Metopium Metopium, 603. Mexican Mulberry, 305. Mimosa, 546. MimosoidejE, 533. Mimusops, 746. Mimusops Sieberi, 747 Mock Orange, 527. Mockernut, 143. Mohrodendron, 754. Mohrodendron Carolinum, 755. Mohrodendron dipterum, 756. Monocotyledons, 102. Monterey Cypress, 77. Monterey Pine, 21. Moose Wood, 627. MORACE^, 302. Morns, 302. Moras celtidifolia, 305. Morus rubra, 303. Mossy Cup Oak, 267. Mountain Ash, 356, 768. Mountain Hemlock, 51. Mountain Laurel, 723. Mountain Magnolia, 319, 322. Mountain Mahogany, 504. Mountain Maple, 626. Mountain White Oak, 277. Mulberry, 302. Mulberry, Mexican, 305. Mulberry, Red, 303. Myrica, 147. Myrica Californica, 149. Myrica cerifera, 147. Myrica inodora, 148. MyricacEvE, 146. Myrsinace^, 733. Myrtace^, 693. Myrtle, Blue, 667. Myrtle, Wax, 147, 148, 149. Naked Wood, 669, 698. Nannyberry, 808. Narrow-leaved Cottonwood, 159. Norway Pine, 25. Nut Pine, 10, 11, 12. Nut Pines, 3. Nutmeg, California, 98. Nutmeg Hickory, 136. Nyctaginace^, 313. Nyssa, 707. Nyssa aquatica, 711. Nyssa biflora, 709. Nyssa Ogeche, 710. Nyssa sylvatica, 707. Nyssa sylvatica, var. biflora, 709. Oak, 226. Oak, Basket, 271. Oak Bear 241. Oak,' Black,"234, 237, 239, 286. Oak, Blue, 277. Oak, Burr, 267. Oak, Chestnut, 225, 272, 273. Oak, Cow, 271. Oak, Evergreen, 278. Oak, Jack, 245. Oak, Laurel, 251. Oak, Live, 253, 256, 257, 284. Oak, Maul, 257. Oak, Mossy Cup, 267. Oak, Mountain White, 277. Oak, Overcup, 268. Oak, Pin, 232. Oak, Post, 264. Oak, Red, 230, 235, 244. Oak, Rock Chestnut, 272. Oak, Scarlet, 236. Oak, Scrub, 241, 255, 276, 283. Oak, Shin, 263, 276. Oak, Shingle, 251. Oak, Spanish, 242. Oak, Swamp Spanish, 232, 244. Oak, Swamp White, 268, 269. Oak, Tan Bark, 225. Oak, Tvirkey, 240. Oak, Valley, 261. Oak, Water, 246, 249. Oak, White, 259, 261, 262, 263,275, 279 280. Oak, Willow, 247. Oak, Yellow, 273. Oak, Yellow-bark, 237. Ocotea, 332. Ocotea Catesbyana, 333. Ogeechee Lime, 710. Ohio Buckeye, 644. Old Field Pine, 19. Old Man's Beard, 778. Oleace^, 757. Olive Tree, Black, 702. Olneya, 575. Olneya Tesota, 576. Opuntia, 687. Opimtia fulgida, 688. Opmitia spinosior, 689. Opuntia versicolor, 690. Orange, Mock, 527. Orange, Osage, 307. Orange, Wild, 527. Oreodoxa regia, 113. Osage Orange, 307. Osmanthus, 779. Osmanthus Americanus, 779. Ostrya, 191. Ostrya Knowltoni, 193. Ostrya Virginiana, 192. Overcup Oak, 268. Oxydendrum, 724. Oxydendrum arboreum, 725. Palm, Desert, 110. Palm, Fan, 110. Palm, Royal, 112, 113. PALMiE, 102. Palmetto, 107, 109. Palmetto, Cabbage, 108. Palmetto, Silver-top, 105. Palms, 102. Palo Verde, 563. Paper Birch, 202. PAPILI0NAT.E, 534. Paradise-tree, 590. Parkinsonia, 559. Parkinsonia aculeata, 560. Parkinsonia microphylla, 561. Parsley Haw, 486. Pasania, 224. Pasania densiflora, 225. Pasania densiflora, var. echinoides, 226. Patton Spruce, 51. Pawpaw, 326, 683. Peach Willow, 170. Pecan, 133. Pecan, Bitter, 134, 137. Pepperidge, 707. Persea, 329. Per sea Borbonia, 330. Persea pubescens, 331. Persimmon, 749. Persimmon, Black, 750. Petals, 315. Picea, 38. Picea Breweriana, 45. Picea Canadensis, 42. Picea Engelmanni, 43. Picea Mariana, 39. Picea Parryana, 44. Picea rubens, 41. Picea Sitchensis, 46. Pigeon Plum, 312. Pignut, 144. Pin Oak, 232. Pinckneya, 798. Pinckneya pubens, 799. Pine, Bull, 15, 23. Pine, Cedar, 28. Pine, Digger, 23. Pine, Foxtail, 8, 9. Pine, Gray, 27. Pine,. Hickory, 9, 33. Pine, Jack, 27. Pine, Jersey, 30. Pine, Knob-cone, 22. Pine, Loblolly, 19. Pine, Lodge Pole, 27. Pine, Long-leaved, 17. Pine, Marsh, 20. Pine, Monterey, 21. Pine, Norway, 25. Pine, Nut, 10, 11, 12. Pine, Old Field, 19. Pine, Pitch, 20, 24. Pine, Pond, 20. Pine, Prickle-cone, 32. Pine, Red, 25. Pine, Rocky Mountain White, 7. Pine, Sand, 31. Pine, Scrub, 26, 30. Pine, Short-leaved, 29. 824 INDEX Pine, Slash, IS, Pine, Southern, 17. Pine, Spruce, "JS, 31, Pine, Sugar, 5. Pine, Swamp, 18. Pine, Table Mountain, 33. Pine, Torrey's, 34. Pine, Wliite, 4, 5, f), 8. Pine, i'ellow, 14, 15, 20, Piuon, 10, 11, 12. Pin us, 2. Pinus albicaulis, 8. Piuus aristata, 9. Pinus Arizonica, 14, Pinus iitteniiata, 22. Pinus P.iltouriana, 8, Pinus Caribii-a, 18. Pinus cenibroides, 10, Pinus Chihuahuana, 14. Pinus clausa, 31. Pinus contorta, 26. Piiuis contorta, var. Murrayana, 27. Pinus Coulteri, 24. Pinus divaricata, 27. Piuus echinata, 20. Piuus edulis, 11. Piuus flexilis, 7. Piuus glabra, 28. Pinus heterophylla, 18, Pinus Laiubertiana, 5. Piuus mouophylla, 12. Pinus monticola, 5. Piuus muricata, 32. Piuus palustris, 17, Pinus ponderosa, 15. Pinus ponderosa, var. Jeffreyi, 16, Pinus ponderosa, var, scopuJorum, 16. Pinus pungens, 33. Piuus quadrifolia, 10. Pinus radiata, 21 . Pinus resiuosa, 25. Piuus rigida, 20. Pinus Sabiniana. 23, Pinus serotina, 20. Pinus strobiformis, 6, Pinus Strobus, 4, Pinus Ta-da, 19. Pinus Ton-eyana, 34, Pinus Virginiaua, 30. Pisonia, 313. Pisonia lougifolia, 314. Piscmia obtusata, 314. Pitch Pine, 20, 24. Pitch Pines, 12. Planera, 296. Planera aquatica, 297. Plane-tree, 344. PLATANACE.S, 343. Plat anus, 344. Platanus occidentalis, 344. Platanus racemosa, 346. Platanus Wrightii, 347. Plum, 509. Plum, Canada, 511. Plum, Chickasaw, 515. Plum, Cocoa, 532. Plum, Darling, 659. Plum, Downward, 744. Plum, Guiana, 597. Plum, Pigeon, 312. Plum, Red, 511. Plum, Wild, 512, 513, 517. Plums, 510. Poison Dogwood, 608. Poison Sumach, 608, Poison Wood, 603. Polygon acEjE, 311, polypetal;e, 315, Pomette Bleue, 489, Pond Apple, 328. Pond Pine. 20. I'oplar, 152, 155. Poi)lar, Yellow, 325. PopuluR, 152. PopuluH acuminata, 160. Populus august ifolia, 150, Populus bal.sauiil'cra, l."»7. Pojiulus balsamifera, var. candi- Populus deltoidea, 103. Populus deltoidea, var, occiden- talis, 1(54. Populus Fremontii, 164. Populus grandidentata, 155, Populus lieterophylla, 156, Populus Mexicana, 162. Populus trenniloides, 154. Populus trichocarpa, 161, Populus Wislizeni, 165, Port Orford Cedar, 84. Post Oak, 264. Prickle-cone Pine, 32. Prickly Ash, 582. Prince Wood, 800. Prosopis, 547. Prosopis juliflora, 548. Prosopis juliflora, var. glandulosa, 549. Prosopis juliflora, var. velutina, 550. Prosopis pubescens, 550. Primus, 509. Pruuus Alabamensis, 526. Prunus Alleghanieusis, 516. Pruuus Americana, 512. Pruuus Americana, var. lanata, 513. Prunus angustifolia, 515. Prunus australis, 527. Prunus Caroliniana, 527. Prunus demissa, 523. Prunus emargmata, 522. Pruuus emarginata, var. villosa, 522. Pruuus hortulana, 513. Prunus hortulana, var. Mineri, 515, Prunus ilicifolia, 530. Prunus ilicifolia, var. integrifolia, 531. Prunus integrifolia, 531. Prunus nigra, 511. Pruuus Pennsylvanica, 521. Prunus serotina, 524. Prunus sphserocarpa, 529. Prunus subcordata, 517. Prunus tarda, 519. Prunus umbellata, 518. Prunus umbellata, var. injucunda, 510. Pru7U(s Virginiana, 523. Pseudophoenix, 114. Pseudophcenix Sargenti, 115. Pseudotsuga, 52. Pseudotsuga macrocarpa, 54. Pseudotsuga mucronata, 53. Ptelea, 587. Ptelea trifoliata, 587. Pumpkin Ash, 772. Purple Haw, 658. Pyrus Americana, var. decora, 357. Quaking Quercus, Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Asp, 154. 226. acuminata, 273. agrifolia, 256. alba, 259. Arizonica, 280. brevifolia, 250. breviloba, 275. Califomica, 239. Catesbsei, 240. Quercus Quercus Quercus 258. Quercus folia, '. Quer(;u8 Qiif/ciis Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus Quercus 286. Quercus 286. Quercus Chapmani, 266. chrysolepis, 257. chrysolepis, var. Palmeri, chrysolepis, var. vaccini- '.r,H. coccinea, 236. (Irnxijltira, '225. digitata, 242. Douglasii, 277. duinosa, 283. dumosa, var. revoluta, 284. ellipsoidalis, 234. Emoryi, 286. Kngelmanni, 278. Gambelii, 263. Garryana, 262. Georgiana, 233. heterophylla, 248. hypoleuca, 252. inibricaria, 251. laurifolia, 249. Leana, 2.52, lobata, 261. lyrata, 268. macrocarpa, 267. Marilaudica, 245. Michauxii, 271. minor, 264. myrtifolia, 255. nana, 241. nigra, 246. oblongifolia, 279. pagodsefolia, 244. palustris, 232. Phellos, 247. platanoides, 269. Prinus, 272. reticulata, 282. rubra, 230. Rudkini, 248. Texana, 235. tomentella, 258. Toumeyi, 281, , undulata, 276, velutina, 237, Virginiana, 284. Virginiana, var. maritima, Virginiana, var. minima, Wislizeni, 253, Red Ash, 770, Red Bay, 330, Red Birch, 198, 205, Red Cedar, 75, 94, 95, 96. Red Elm, 293, 205, Red Fir, 53, 65, 66, 67. Red Haw, 447. Red Ironwood, 650, Red Maple, 630, 641. Red Mulberry, 303, Red Oak, 230, 235, 244. Red Pine, 25, Red Plum, 511, Red Spruce, 41, Red Stopper, 607. Redbud, 552, 553. Redwood, 68. Retama, 560. Re5Tiosia, 658. Reynosia latifolia, 659. Reynosia septentrionalis, 659. RHAMNACEiE, 657. Rhamnidium ferreum, 660. Rhamnus, 661. Rhamnus Caroliniana, 663. Rhamnus crocea, 602. Rhamnus crocea, var. insularis, 663. Rhamnus crocea, var. pilosa, 663. INDEX 825 Rhamnus Purshiana, 664. Rhizophora, G91. Rliizophora Maugle, 692. Rhizophorace.e, 091. Rhododendron, 7 "JO. Rhododeudiou maximum, 721. Rhus, G04. Rhus copallina, 606. Rhus copallina, var. lanceolata, 608. Rhus hirta, G05. Rhus integrifolia, 609. Rhus Mf'topium, 603. Rhus Yeruix, 608. River Birch, 198. Robinia, 571. Robiuia Xeo-Mexicana, 573. Robinia Pseudacacia, 572. Robinia viscosa, 574. Rock Cedar, 93. Rock Chestnut Oak, 272. Rock Elm, 290. Rock Maple, 632. Rocky Mountain White Pine, 7. ROSACE.E, ?Ad,. Rose Bay, 721. Royal Palm, 112, 113. Roystonea, 112. Roystonea regia, 113. RUBIACE.E, 798. Rum Cherry, 521. RUTACKE, 580. Sabal, 107. Sabal Mexicana, 109. Sabal Paknetto, 108. Salicace^, 152. Salix, 166. Salix Alaxensis, 188. Salix amplifolia, 185. Salix amygdaloides, 170. Salix balsamifera, 178. Salix Bebbiana, 183. Salix Bonplandiaua, 172. Salix cordata, ISl. Salix cordata, var. Mackenzieana, 180. Salix discolor, 182. Salix fluviatilis, 175. Salix fluviatilis, var. argyrophylla, 176. Salix fluviatilis, var. exigua, 176. Salix Hookeriana, 186. Salix laevigata, IH. Salix laevigata, var. angustifolia, 171. Salix laevigata, var. cougesta, 172. Salix lasiandra, 173. Salix lasiandra, var. caudata, 174. Salix lasiandra, var. Lyallii, 174. Salix lasiolepis, 179. Salix longipes, 169. Salix lucida, 174. Salix Missouriensis, 181. Salix nigra, 168. Salix nigra, var. falcata, 168. Salix Nuttallii, 184. Salix Nuttallii, var. brachystachys, 185. Salix occideiitalis, 169. Salix sessilifolia, 176. Salix Sitchensis, 187. Salix taxifolia, 177. Salix Ward), 169. Sambucus, 805. Sambuctis Canadensis, var. Mexi- cana, 806. Sambucus glauca, 807. Sambucus Mexicana, 806. Sand Bar Willow, 175. Sand Pine. 31. SAPINDACE.E, 649. Sapindus, 649. SapinduB Dnimmondi, 652. Sapiiidus marginatus, 651. Sapindus Saponaria, 650. SAPOTACE.S;, 736. Sassafras, 335. Sassafras Sassafras, 337. Satinwood, 583. Savin, 94. Scarlet Haw, 459. Scarlet Maple, 639, 641. Scarlet Oak, 236. Schaefferia, 622. Schaefferia frutescens, 623. Screw Bean, 550. Screw Pod Mesquite, 550. Scrub Oak, 241, 255, 276, 283. Scrub Pine, 26, 30. Sea Grape, 311. Sequoia, 68. Sequoia sempervirens, 68. Sequoia Wellingtonia, 69. Serenoa, 111. Serenoa arborescens, 111. Service Berry, 360, 361, 362. Shad Bush, 360, 361. Shagbark Hickory, 139, 140. She Balsam, 57. Sheepberry, 808. Shellbark, Big, 141. Shellbark, Bottom, 141. Shellbark Hickory, 139. Shin Oak, 263, 276. Shingle Oak, 251 . Shining Willow, 174. Short-leaved Pine, 29. Sideroxylum, 737. Sideroxylum Mastichodendron, 737 . Silver Bell Tree, 755, 756. Silver Fir, 63. Silver Maple, 638. Silver-top Palmetto, 105. Simaruba, 590. Simaruba glauca, 590. SlMARUBACE^, 589. Sitka Cypress, 83. Sitka Spruce, 46. Slash Pine, 18. Slippery Elm, 293, 676. Sloe, 516, 518, 519. Sloe, Black, 518. Snowdrop Tree, 756. Soapberry, 650, 651, 652. Soft Maple, 638. Soft Pines, 3. Sophora, 564. Sophora affinis, 566. Sophora secundiflora, 565. Sorbus, 356. Sorbus Americana, 356. Sorbus Americana, var. decora, 357. Sorrel-tree, 725. Soulard Crab, 355. Sour Tupelo, 710. Sour Wood, 725. Southern Pine, 17. Spanish Bayonet, 117. Spanish Buckeye, 656. Spanish Dagger, 117, 118, 119, 120, 121, 123, 124. Spanish Oak, 242. Spanish Stopper, 694. Sparkleberry, 732. Spice-tree, 334. Spruce, 38. Spruce, Black, 39. Spruce, Blue, 44. Spruce, Douglas, 53. Spruce, Engelmann, 43. Spruce, Patton, 51. Spruce Pine, 28, 31. Spruce, Red, 41. Spruce, Sitka, 46. Spruce, Tideland, 46. Spruce, Weeping, 45. Spruce, White, 42, 43. Stag Bush, 811. Staghom Sumach, 605. Sterculiace^, 676. Stinking Cedar, 98. Stone Pines, 3. Stopper, 695. Stopper, Gurgeon, 694. Stopper, Red, 697. Stopper, Spanish, 694. Stopper, White, 695. Striped Maple, 627. Strong Back, 784. STYEACE.E, 754. Sugar, Horse, 752. Sugar Maple, 632, 634, 636, 637. Sugar Pine, 5. Sugarberry, 299, 300. Sumach, 606. Sumach, Poison, 608. Sumach, Staghom, 605. Suwarro, 685. Swamp Ash, 762. Swamp Bay, 317, 331. Swamp Cottonwood, 156. Swamp Hickory, 135. Swamp Pine, 18. Swamp Spanish Oak, 232, 244. Swamp White Oak, 268, 269. Sweet Bay, 317, 331. Sweet Buckeye, 646. Sweet Gum, 340. Sweet Leaf, 752. Swietenia, 593. Swietenia Mahagoni, 593. Sycamore, 344, 340, 347. Stmplocace^, 752. Symplocos, 752, Symplocos tinctoria, 752, Table Mountain Pine, 33, Tacmahac, 157. Tamarack, 35, 36, 37. Tamarind, Wild, 539. Tan Bark Oak, 225 Tassajo, 689. Taxace^, 97. TAXODIiE, 2. Taxodium, 70. Taxodium distichum, 71. Taxodium distichum, var. imbrica- rium, 72. Taxus, 99. Taxus brevifolia, 100. Taxus Floridana, 101. Terminalia Buceras, 702. Thatch, 103, 104. I Thatch, Brittle, 105, 106. Theace^, 677. Theophra8Tace.«, 735. Thorn, Cock-spur^ 368. Thorn, Washington, 487. Thrinax, 103. Thrinax Floridana, 103. Thrinax Keyensis, 104. Thrinax microcarpa, 105. Thuya. 74. Thuya occidentalis, 74. Thuya plicata, 75. Tideland Spruce, 46. Tilia, 070. Tilia Americana, 671. Tilia australis, 672. Tilia Floridana, 672. Tilia heterophylla, 674. Tilia Michauxii, 673. Tilia pubescens, 675. 82G INDEX TlLIACE^, CG9. Titi, GIL'. Tollou, :i5i>. Toothache-tree, 582. Toroli Wood, 588. Torreya, *J8. Torrey's Pine, 34. Toxyloii, 3(R;. Toxyloii poiuiferum, 307. Toyoii, 35y. Tsuga, 47. Tsuga Canadensis, 48. Tsuga Caroliuiana, 4i). Tsuga heterophylla, 50. Tsuga Mertensiaua, 51. Tulip-tree, 325. Tumiou. ;iT. Tumiou Californicum, 98. Tumiou taxifolium, 1)8. Tupelo, 707. Tupelo Gum, 711. Tupelo, Sour, 710. Turkey Apple, 436. Turkey Oak, 240. Ulmace^, 287. Ulmus, 287. Ulmus alata, 291. Ulmus Americana, 289. Ulmus crassifolia, 294. Ulmus fulva, 293. Ulmus serotina, 295. Ulmus Thomasi, 290. Umbellularia, 334. Umbellularia Californica, 334. Umbrella-tree, 321. Uua de Gato, 544. Ungnadia, G55. Ungnadia speciosa, 656. Vaccinium, 731. Vaccinium arboreum, 732. Valley Oak, 2C1. Vauquelinia, 349. Vauquelinia Californica, 349. VEEBENACEiE, 787. Viburnum, 808. Viburnum Lentago, 808. Viburnum prunifolium, 811. Viburnum rufidulum, 810. Vine Maple, 630. Virgilia, 568. Wafer Ash, 587. Wahoo, 291, 620. Walnut, 126, 129, 130. Walnut, Black, 128. Washington Thorn, 487. Washingtonia, 1U9. Wasliingtonia tilamentosa, 110. Water Ash, 7(;2, 7G3. Water Kim, 297. Water Hickory, 137. Water Locust, 558. Water Oak, 246, 249. Wax Myrtle, 147, 148, 149. Weeping Spruce, 45. West Indian Birch, 592. Western Catali)a, 795. White Ash, 767. White Birch, 200, 206. White Cedar, 74, 82. White Elm, 289: White Fir, 59, 60, 62. Wliite Ironwood, 654. White Mangrove, 703. White Oak, 259, 261, 262, 263, 275, 279, 280. White Oaks, 229. White Pine, 4, 5, 6, 8. White Pines, 3. White Spruce, 42, 43. White Stopper, 695. White Willow, 179. White Wood, 595, 680. Wild Black Cherry, 524. Wild Cherries, 510. Wild Cherry, 522, 526, 527. Wild China-tree, 652. Wild Cinnamon, 680. Wild Dilly, 747. Wild Fig, 308, 310. Wild Lime, 581. Wild Orange, 527. Wild Plum, 512, 513, 517. Wild Red Cherry, 521. Wild Tamarind, 539. Willow, 166. Willow, Almond, 170. Willow, Black, 168, 169, 171, 173, 184. Willow, Desert, 792. Willow, Feltleaf, 188. Willow, Glaucous, 182. Willow Oak, 247. Willow Oaks, 228. Willow, Peach, 170. Willow, Sand Bar, 175 Willow, Shining, 174. Willow, White, 179. Winged Elm, 291. Witch Hazel, 341. Wood, Ants', 744. Wood, Bass, 671, 673, 675. Wood, Bow, 307. Wood, Box, G23. Wood, Cliittani, 602, 741. Wood, Cork, 151. Wood, Crab, 600. Wood, Devil, 779. Wood, Fiddle, 788. Wood, Ink, 653. Wood, Joe, 735. Wood, Leather, 611. Wood, Log, 658. Wood, Moose, 627. Wood, Naked, 669, 698. W^ood, Poison, 603. Wood, Prince, 800. Wood, Sour, 725. Wood, Torch, 588. Wood, White, 595, 680. Wood, Yellow, 568, 623. Xanthoxylum C lava- Her culis, 582. Xanthorylum Fagara, 581. Xanthoxyhim flavum, 583. Xolisma, 726. Xolisma ferruginea, 726. Yaupon, 616. Yellow-bark Oak, 237. Yellow Birch, 197. Yellow Cypress, 83. Yellow Locust, 572. Yellow Oak, 273. Yellow Pine, 14, 15, 29. Yellow Poplar, 325. Yellow Wood, 568, 623. Yew, 99, 100, 101. Yucca, 115. Yucca aloifolia, 117. Yucca arborescens, 122. Yucca constricta, 124. Yucca Faxoniana, 121. Yucca gloriosa, 123. Yucca gloriosa, var. recurvifolia, 123. Yucca macrocarpa, 118. Yucca macrocarpa, 121. Yucca Mohavensis, 119. Yucca radiosa, 124. Yucca Schottii, 120. Yucca Treculeana, 117. Yucc.*;, 115. Zygia, 535. Zygia brevifolia, 536. Zygia flexicaulis, 537. Zygia Unguis-cati, 535. Zygophyllacble, 578. Electrotyped and pri7ited by H.O. Houghton ds' Co. Cambridge, Mass., U. S. A. MANUAL OF THE TREES OF NORTH AMERICA (EXCLUSIVE OF MEXICO) BY CHARLES SPRAGUE SARGENT Director of the Arnold Arboretum of Harvard University Author of The Sili'a of North America WITH SIX HUNDRED AND FORTY-FOUR ILLUSTRATIONS FROM DRtrriY ^" T;y CHARLES EDWARD FAXON #IEW YORK iMrTANICAL OAROEN fic, 20 Pimis rigida HOUGHTON, MIFFLIN & COMPANY 4 Park St., Boston: 85 Fifth Ave., New York MANUAL Ol THE TREES OE NOllTII AMEllICA (EXCLUSIVE OF lAlEXlCU) By CHARLES SPKAGUE SARGENT Author of " Tfie Silva of North America,'" " Trees and Shrubs,^^ etc. With 644 illustrations by C. E. Faxon. In green buckram, 8vo, $0.00, net. Postpaid. PROFESSOR Sargent's new work contains brief descriptions in plain and simple language of some 630 trees, accompanied by a figure of the leaves, fruits, and flowers of each tree, with keys lead- ing to a ready determination of the genera and species. The illustra- tions are a feature of the book. They are reproductions of drawings made by Mr. Charles E. Faxon, the artist who made the illustrations for " The Silva of North America," and exhibit in a remarkable degree his skill, knowledge, and taste, — the salient or more character- istic features of each species being shown in an admirable manner. Professor Sargent's descriptions bring out the botanical characters of each genus and species, its geographical distribution and economic value, and its relationship to other species of the same group growing in other parts of the world. The book represents in condensed form the life-work of the author and of the artist in studying, describing, and illustrating the trees of North America, which they have succeeded in making known as the trees of no other continent are known. The Manual makes available in convenient form the most essential points of the treasures of information to be found in '' The Silva of North America." It will be indispensable to every one interested in nature, but especially to all BOTANISTS, TEACHERS, FORESTERS, LANDSCAPE-GARDENERS, HORTIC ULTURISTS, NURSERYMEN, PARK SUPERINTENDENTS, AND THE OWNERS OF COUNTRY PLACES. As a convenient handbook it will serve as a guide to the trees to persons travelling in different parts of this country. Professor Sargent is, without doubt, the greatest living authority on his subject, and his new work will fill a place similar to that long held by Gray's Manual of Botany. Liriodendron Tulipifera Castanea dentata '^/C) 6q- Sequoia gigantea OKDEK BLANK Date HOUGHTON, MIFFLIN & CO. Sirs : — For the enclosed check (or money order) for $().00 please send, postpaid, a copy of Sargent's '^ Manual of Trees " to the foUowinof address. Name ■ Address i JlC^ New York Botanical Garden Library QK^.S3 Sargent, Charles Sp/Manua 3 5185 00112 4948 gen of the trees