•? J >!ilsgJri» in i INI n B 3 Mn 571 xii. v r A- r m \,&£F KEY, BASED UPON LEAVES. 7 h2 Shrubs or very small trees. . .DWABF CHINQUAPIN OAK (Q. prinoides) . d5 Margin both serrate or serrate-dentate and lobed in the same Ivs., though the lobed Ivs. may be on vigorous shoots only, and the latter Ivs, are not considered in these further descriptions. e Fruit a small pome (apple) f With 1-5 bony, 1-seeded nutlet-like carpels; email trees and shrubs with thorny branches; Ivs. g Obovate (large ones more elliptical) entire, cuneate b., rounded or acute a.; petioles short, winged above and glandless; h Leaves lustrous dark -green ab., thick; fr. globose-oblong, y% in., dull red; nutlets 1-3 COCK-SPUR THORN (Crataegus crus-galli) . l\- Leaves dull gray-green ab., more membranaceous ; fr. subglobose, Mi~l in., dull red or yellow with white dots. DOTTED THORN (C. punctata) . g2 Obovate-oblong, wider and short cuneate b., petioles longer and winged ab. h Irregularly serrate-dentate, acute or blunt-pointed and slightly, if at all, lobed, dark green and smooth ab. ; fr. scarlet or orange, % in. or less ; nutlets usually 5 SOUTHERN THORN ( C. viridis ) . h2 Crenate-serrate or with short crenate toothed lobes, rounded or obtuse a.; fr. oblong-globose, % in., dark red or orange, black dotted, with 2-3 nutlets MARGARETTA THORN (C. Margaretta). hs With short acute-toothed lobes or doubly serrate-dentate, obtuse to acute a., pubescent bn. 2-5 in.; petioles glandular; fr. oblong- globose, */£ in.; nutlets 2-3 with ventral cavities. PEAR THORN (C. tomentosa). g3 Obovate-orbicular, rounded or obtuse a., coriaceous, coarsely and irregu- larly serraterdentate, or very slightly lobed; thorns 2%-4 in.; fr. lustrous crimson, %-% in., subglobose, on erect stems; nutlets with deep ventral cavities. . . .LONG-SPINE THORN (Crataegus macracantha ) . g* Leaves broad-ovate; h Waxy-coated, slightly 5-angled and flattened subglobose, apple-green becoming purplish red; Ivs. subcordate b., acute, with 3 or 4 pairs short pointed lobes, thickish WAXY THORN ( C. pruinosa ) . h2 Fruit pubescent at least at the ends, i Subglobose, %-l in., in small drooping villous clusters; calyx-lobes large and deciduous; nutlets 4 or 5; Ivs. truncate or subcordate b., with appressed pubescence ab., pubescent bn. RED-FRUITED THORN (C. mollis). 12 Obovoid-oblong, in erect compact clusters with prominent and per- sistent calyx-lobes and tube; Ivs. rounded b., acute or obtuse a. CHAMPLAIN THORN (C. Champlainensis) . hs Smooth and lustrous, about % in.; Ivs. scabrous ab.; fr. i Orange red with pale dots, obovoid, calyx-lobes enlarged and per- sistent; Ivs. thickish RED-FRUITED THORN (C. submolis) . i- Bright scarlet with dark dots; Ivs. membranaceous. SCARLET THORN (C. pedicellata) . g5 Triangular-ovate, 1^-3 in., truncate b., acute or acuminate a,, lustrous dark green ab., coarsely serrate-dentate and incisely 3-5-lobed. WASHINGTON THORN (C. cordata). HOUGH'S AMERICAN WOODS. abcd5ef g« Oval to orbicular. h Membranaceous, hairy on veins bn., i Rounded or obtuse a. and b., sharply serrate with 2-3 short lobes, glabrous yellow-green ab., paler and concave bn. PBINGLE'S THORN (C. Pringlei). 12 Acute or acuminate a., rounded b., sharply serrate-dentate, and with 3 or 4 pairs short lobes, scabrous ab., pubescent on veins bn. HOLME'S THORN (C. Holmesiana). h2 Coriaceous, finely doubly serrate-dentate. SCARLET THORN (C. coccinea). f2 With 5 papery usually 2-seeded carpels; small flat waxy fragrant apples; Ivs. g Tomentose or pubescent bn., oblong-ovate to oval, h Crenate-serrate and usually with short crenate lobes; fr. stems slender and glabrate PRAIRIE CRAB ( Pyrus loensis ) . h2 Crenate and very much wrinkled; fr. stems short. SOULARD CRAB (Pyrus Soulardi). g2 Glabrous throughout, with long slender stems; fr. hard translucent long- stemmed and calyx-lobes. h Deciduous; fr. yellowish, red-cheeked, scarcely waxy and but little hollowed at b. ; Ivs. ovate-oblong serrate or sometimes entire, not lobed SIBERIAN CRAB (Pyrus baccata) . h2 Persistent in fruit; fr. yellow-green, waxy, deeply hollowed at b., very sour; Ivs. triangular ovate to trucate or subcordate b., acute a., serrate-dentate and usually with few short lobes. FRAGRANT CRAB (Pyrus coronaria) . e2 Fruit a juicy syncarp (blackberry-like), edible; Ivs. with arcuate lateral veins, the lowermost pair branching; Ivs. f Lustrous ab., glabrous bn., broad-ovate, coarsely serrate; fr. pinkish white. WHITE MULBERRY (Morus alba). f2 Dull dark green and rough ish ab., pubescent and strongly reticulate bn., orbicular ovate; petioles glabrate; fr. purple-black. RED MULBERRY (Morns rubra) . e3 Fruit a globular head with seeds exserted on red fleshy stipes ; Ivs. rough ab., under surface and petioles velvety-pubescent. PAPER MULBERRY (Broussonetia papyrifera). 6 Margin crenate-serrate; e Leaves opposite, mostly f Oblong, tapering b., acuminate; small trees and shrubs; Ivs. g Glabrous bn., 2-3 in.; inhabits wet lowlands; fr. drupe. SWAMP PRIVET (Forestiera acuminata). g2 Pubescent bn., 2-5 in., membranaceous and very finely crenate-serrate; an upland tree; fr. fleshy capsule. BURNING BUSH (Euonymus atropurpureus) . f2 Broadrovate to oval, l%-5ys in., rounded' b., obtuse to acute a., the lateral veins very prominent and arcuate; fr. drupe-like. BUCKTHORN (Rhamnus cathartim} . e2 Leaves alternate, b c d6 e2 f KEY, BASED UPON LEAVES. 9 f Lance-ovate, rounded or apiculate a.; fr. a small fit waxy-coated apple. NARROW LEAF CRAB (Pyrus angustifolia) . f2 Lance-oblong, finely rugose ab., glaucous bn.; fr. a small capsule with cotton-tufted seeds GLAUCOUS WILLOW (Salix discolor). fs Lance-obovate, 4-6 in., cuneate b., acute or acuminate a., very lustrous ab., thick and with short stems; fr. dry drupe. SWEET LEAF (Symplocos tinctoria). f* Rhombic-lanceolate to ovate, with long slender stems, cuneate to nearly rounded b., acuminate a.; a tree of the eastern foot-hills of the Rocky Mountains; fr. capsule. . .LANCE-LEAF COTTONWOOD (Populus acuminata). fs Ovate, cuneate to rounded b., acute to acuminate, strongly reticulate, whitish and often rusty bn.; fr. capsule. BALSAM POPLAR (Populus lalsamifera) . fe Heart-shaped, 3-8 in., with long round stems; fr. capsule; Ivs. g Acuminate, whitish and often rusty bn. BALM-OF-GILEAD (Populus candicans). g2 Obtuse to subacute a., hairy bn. and on stems. SWAMP POPLAR (Populus heterophylla ) . t~ Ovate-oblong, 1-3 in., rounded or obtuse and more or less inequilateral b.; fr. coriaceous drupe PLANER-TREE (Planera aquatica) . fs Oblong, 2-4 in., acute or rounded both ends, lustrous and veins impressed ab., obscurely crenate-serrate ; a very small tree or shrub of the southern states; fr. drupe-like YELLOW BUCKTHORN (Rhamnus Caroliniana) . f» Obovate, 4-8 in., obtuse or acute b., acute or acuminate a., regularly crenate; fr. an acorn Cow OAK (Quercus Michauxii). fio Deltoid-ovate, truncate or wide cordate b., acute or short-acuminate, stems long and laterally compressed; fr. capsule. COTTONWOOD (Populus deltoides). fn Orbicular-ovate, 1-2 in., rounded to subcordate b., obtuse to acute or apiculate a., glabrous and fragrant; fr. drupe. PERFUMED CHERRY (Prunus Mahaleb). d7 Margin crenate or crenulate ; Ivs. e Lance-obovate, l%-3 in., cuneate b., rounded, obtuse or notched a.; fr. drupe- like SWAMP HOLLY ( Ilex decidua) . e2 Oblong, 1-2 in., thick, evergreen; fr. a bright red drupe-like berry; fr. drupe-like YAUPON (Ilex vomitoria) . e3 Suborbicular, l%-3 in., rounded or obtuse b., abruptly acute or short acumi- nate, finely crenate; petioles long and compressed laterally; fr. capsule. QUAKING ASP (Populus tremuloides) . e* Broad-deltoid or rhombic, blade commonly wider than long, cuneate to truncate b.. short acuminate or acute a.; petioles long, laterally com- pressed; fr. capsule; branches f Spreading BLACK POPLAR (Populus nigra). f2 Strictly upright LOMBARDY POPLAR (Populus dilatata) . d« Margin dentate, e Finely dentate, mostly oblong, acute or obtuse b., acuminate a., with prominent arcuate veins; fr. dry winged drupe. SILVER-BELL TREE (Mohrodendron Carolinum). e- Coarsely dentate, broad-ovate to orbiculer; petioles 10 HOUGH'S AMERICAN WOODS. abcd8e2 f Laterally compressed and long, blades rounded b., acute or short acuminate a., glabrous and firm (white velvety when young) ; fr. capsule. LARGE-TOOTH POPLAR (Populus grandidentata) . f2 Terete, slender and short, blades mostly rounded or obtuse both ends, membranaceous ; fr. drupe-like. WESTERN SERVICEBERRY (Amelanchier alnifolia). d9 Margin sinuate or sinuate-dentate, e Lanoe-oblong to ovate, obtuse to subcordate b., bluntly acute a., with 10-16 pairs of straight lateral veins ROCK OAK ( Quercus Primis ) . e2 Obovate-oblong. cuneate b., rounded or obtuse a., 6-8 pairs of lateral veins. whitish bn SWAMP WHITE OAK (Quercus platanoides) . e3 Oval-obovate, rounded or subcordate b., rounded to acute or apiculate a., membranaceous; petioles short and thick; fr. woody capsule. WITCH HAZEL (Hamamelis Virginia). e4 Suborbicular (on vigerous shoots 3-5-lobed) 2-4 in., dark green ab., white velvety tomentose bn. on stems, etc.; fr. capsule. . . .ABELE (Populus alba). di° Margin lobed; fruit a e Small apple, containing a single 2-seeded bony nutlet; branchlets thorny and Ivs. with 1-3 pairs of wide-spreading lobes. HAWTHORN (Crataegus Oxyacantha) . e2 Narrow upright cone, made up of closed carpels; Ivs. with one or two pairs of wide-spreading entire lobes and turcate or with wide sinus at apex. TULIP TREE (Liriodendron tulipifera) . e3 Acorn; Ivs. pinnately lobed and f Lobes bristle-tipped; acorns maturing in the autumn of the second year; sinuses g Narrow at bottom; lobes wide at base and narrowing towards apex; Ivs. h Oval to ovate, lobes 4-5 pairs, each lobe with i One to three sharp teeth; fruit j Scarcely 14 enveloped by its shallow saucer. RED OAK (Quercus rubra) . j2 Half enveloped by its deep saucer. GRAY OAK (Q. borealis) . i2 Entire, triangular and wide-spreading. SWAMP SPANISH OAK (Quercus pagodaefolia) . h2 Obovate and lobes generally in i Four pairs, symmetrically arranged, the larger lobes 1-4 toothed. YELLOW OAK (Q. velutina). i2 One to three pairs, j Not symmetrically arranged, lobes scarcely dentate and those of some Ivs. finger like SPANISH OAK ( Q. digitata ) . j2 Symmetrically arranged and generally in k Two pairs; shrubs or very small trees. BEAR OAK (Quercus nana) . k2 A single pair of wide-spreading lobes near a., or scarcely lobed and very wide at a. ; a medium-size tree. BLACK JACK OAK ( Q. Marilandica ) . g2 Sinuses wide, rounded and deep; lobes narrow, widening toward the apex, the larger with 1-4 spreading teeth or sometimes toothed lobes; acorn bcd10e3f KEY, BASED UPON LEAVES. 11 h Oblong and with i Very shallow saucer-like cup. SOUTHERN RED OAK (Quercus Texana). 12 Deep top-shaped cup about half enveloping the acorn. HILL'S OAK (Q. ellipsoidalis ) . h2 Subglobose, half enveloped by its deep turbinate cup of closely appressed scales SCARLET OAK ( Q. coccinea } . hs Flattened-globose to almost hemispheric, with shallow saucer-shaped or slightly top-shaped cup PIN OAK ( Q. palustris). f2 Lobes rounded or bluntly pointed and acorns maturing in the autumn of the first year; Ivs. g Obovate-oblong, under surface h Glabrous, larger lobes long and narrow, acorn about one-third invested by the cup WHITE OAK ( Q. alba ) . h2 \Yhite-tomentose, lobes shorter and more triangular; acorn nearly enveloped by its thin-edged cup OVER-CUP OAK (Q. lyrata] . g- Broad-obovate with h 1 or 2 pairs of rounded lobes, the one next the apex much the largest and commonly trucate or with wide sinus at apex. POST OAK (Q. minor). h2 3 or 4 pairs — deeply lyrate pinnatified; acorns generally large with fringed cup BUR OAK ( Q. macrocarpa ) . <*2 MAIN RIBS SEVERAL PALMATELY VEINED; cl Leaves alternate icith e 5-7 deep lobes — star-shaped; fr. globose head of capsules. SWEET GUM (Liquidanbar Styraciflita). e2 3-5 short lobes; b. of leaf-stem enveloping the new leaf-bud; fr. globose head of akenes SYCAMORE (Platanus occidentalism e3 Not lobed, entire, orbicular-cordate; fr. pod. REDBUD (Cercis Canadensis). <12 Leaves opposite; fr. samaras in pairs united at base. e Large or medium-size trees with rather firm Ivs. ; f Sinuses rounded at bottom and lobes entire or nearly so; sinuses g Moderately deep; Ivs. pale and glabrous bn., without stipules. SUGAR MAPLE (Acer Saccharum). g- Shallow; Ivs. green and pubescent bn., edges drooping; stipules often present BLACK MAPLE ( A. nigrum ) . f2 Sinuses pointed at bottom and lobes more or less toothed; Ivs. g Deeply 5-lobed with narrow sinuses SILVER MAPLE (A. dasycarpum ) . g2 Moderately 3-5-lobed with wide sinuses; under surface pale and h Glabrate; rather thin, subcordate b RED MAPLE (A. rubrum). h- Moderately hairy, especially along the veins, firm, mostly tapering and entire b. obovate-orbicular, small and sometimes without lobes. CAROLINA MAPLE (A. Carolinum). h3 Velvety pubescent, thick, wide-orbicular: a southern tree. DRUMMOXD MAPLE (A. Drummondii). o= Small trees or tall shrubs with membranaceous leaves; lobes h Doubly serrate: lv*. 12 HOUGH'S AMERICAN WOODS. abc'd'e* i Acuminate, 3-lobed at a. only, eastern. STRIPED MAPLE (A. Pennsylvanicum) . 12 Acute or obtuse, 3-5-lobed, or even 3-parted or 3-foliate, western. DWARF MAPLE (A. glabrum) . h2 Coarsely serrate-dentate, pubescent bn. MOUNTAIN MAPLE (A. spicatum). b2 Without well-marked blade and petiole (latter present, but very small in leaves of Hemlocks ) ; c LEAVES LINEAR AND IN FLAT 2-BANKED SPRAYS, d Sessile, e Deciduous, soft, light green (those of fruiting-branchlets scale-like) ; fr. sub- globose cones BALD CYPRESS (Taxodium distichum) . e2 Evergreen, more rigid, dark green ab., whitish and keeled bn., leaving a flat or depressed scar when breaking away from branchlet; cones erect, 2 to 3% in. long and falling apart at maturity. f Bracts of cone shorter than scales BALSAM FIR (Abies balsamea) . £2 Bracts longer than the scales, exserted and reflexed. FRASER'S FIR (Abies Fraseri) . d2 With very small appressed petioles, e Leaves obtuse or rounded a.; cones less than 1 in. and with suborbicular scales which expand but little at maturity HEMLOCK (Tsuga Canadensis) . e2 Leaves notched or rounded a.; cones more than 1 in. and oblong scales expanding widely at maturity. . .CAROLINA HEMLOCK (Tsuga Caroliniana) . c2 LEAVES SCALE-LIKE IMBRICATED AND CLOSELY APPRESSED OR AWL-SHAPED, in four ranks and making a conspicuously d Flat 2-edged branchlet; cones y2 in. or less, with few leathery scales, 4 only being fertile ARBOR VITAE ( Thuya occidentalis) . d2 ^-angled branchlet; fr. e Sublogobose cones, % in., with peltate, valvate scales. WHITE CEDAR ( Cha:naecyparis thyoides ) . e2 Fleshy, dark blue and glaucous berries (really modified cones) ; f Leaves of two kinds, both scale like and awl-shaped; buds naked; fr. g .Maturing in autumn of first season RED CEDAR (J. Virginiana) . g2 Maturing in autumn of second season. ROCKY MOUNTAIN RED CEDAR (J. scopulorum) . f2 Leaves all awl-shaped, buds scaly COMMON JUNIPER (J. communis) . c3 LEAVES NEEDLE-SHAPED; FRUIT A CONE; d Leaves not in fascicles (scattered), short, stiff, pointing every way, ridged above and below (4-sided), with woody and persistent bases; e Branchlets pubescent and foliage f Yellowish-green; cones 1^-2 in., oblong-cylindrical, on stalks which are slightly if at all incurved; cones with subentire scales. RED SPRUCE (Picea rubens). f2 Blue-green; cones %-!% in., with incurved stalks; cones with erose mar- gined scales BLACK SPRUCE (Picea Marinana) . e2 Branchlets glabrous; cones oblong-cylindrical; about f 2 in. long, with nearly orbicular scales, truncate and entire at apex. WHITE SPRUCE (Picea Canadensis)* b2c3de2 KEY, BASED UPON LEAVES. 13 f2 2y2-4 in. long, with rhoniboidal, flexuose scales, narrow erose-dentate and elongated at apex BLUE SPBUCE (P. Parryana) . d2 Leaves in fascicles, e Evergreen, quite stiff and in fascicles of f 2 each, a raembranaceous sheath inclosing the base of each fascicle, about g 1 in. long, sheaths very short JACK PINE (P. divaricata). g2 Iy2-2y2 in. long; sheaths % in. or less; branchlets smooth and purple. JEBSEY PINE (P. Virginiana). gs 3-5 in. long; branchlets rough. h Cones lVg~2 in., narrow ovoid, scales armed with weak prickles. YELLOW PINE (P. echinata). h2 Cones 3-4 in., broad-ovoid, scales armed with very thick stout prickles. TABLE-MOUNTAIN PINE (P. pungens). g* 5-6 in. long, thick and with smooth-bossed cones. RED PINE (P. resinosa). f2 3 each and 3-6 in. long; cones l%-3 in PITCH PINE (P. rigida). g& 5-8 in. long; cones h 2-3 in., globular-ovoid, persisting closed on the branches for some years. POND PINE (P. serotina). h2 3-5 in., narrow-ovoid, opening and discharging its seeds the year of maturity; resin-ducts in leaves near surface. LOBLOLLY PINE (P. Taeda). g6 8-15 in., resin-ducts not near surface; cones cylindrical-ovoid, 6-10 in. long, breaking away from branch within its b. LONG-LEAF PINE (P. palustris). fs Both 2 and 3 each ; Rocky Mountain trees. ROCK PINE (P. ponderosa scopulorum). f* 5 each, slender, 3-5 in.; cones 4-6 in., curved-cylindrical, with stems. WHITE PINE (P. Strobus). e- Deciduous, soft, short and in fascicles of many each (scattered on shoots of the season ) TAMABACK ( Larix Americana ) . 2 COMPOUND LEAVKS; b Pinnately compound, c ALTERNATE AND d Entire; e Leaflets 3, subsessile, obovate-oblong, remotely crenate-serrate; fr. samara. HOP-TREE (Ptelea trifoliata). e2 Leaflets 7-9, short-stemmed, ovate to suborbicular and alternately arranged; fr. pod YELLOW WOOD ( Cladrastis lutea) . e3 Leaflets 9-13, short-stemmed, ovate-oblong, abruptly acuminate; fr. shining white drupelet POISON SUMACH (Rhus rernix) . e* Leaflets 11-21, short-stemmed, oblong, obtuse or rounded b., rounded and notched or bristle-tipped a.; fr. pod. » f Petioles and branchlets glabrous LOCUST (Robinia Pseudacacia) . f2 Petioles and branchlets viscid CLAMY LOCUST (R. viscosa) . es 12-25, short-stemmed, lance-falcate; fr. drupe. WESTERN SOAPBERRY (Sapindus Drummondii). d2 Entire, but remotely serrate toward a.; stem winged between the leaflets; fr. crimson drupelets DWARF SUMACH (Rhus capallina). 14: HOUGH'S AMERICAN WOODS. a2 bed* ds Entire, but with 1-4 glandular teeth at b.; fr. twisted samara. TREE-OF-HEAVEN (Ailanthus glandulosa) . d* Serrate; e Leaflets 3-11, the lateral sessile, and successively larger towards the terminal one; fr. a nut enveloped in a 4-valved woody husk; leaflets f 3-5, lanceolate; nut small, compressed, g 4-angled; husk rather thick and parting to b. SOUTHERN SHELL-BARK HICKORY (H. Carolinae-Septentrionalis). g2 Scarcely angled, husk rough, very thin and splitting with difficulty if at all NORTHERN HICKORY ( H. borealis ) . f2 5, lance-ovate to obovate; fr. with very thick husk splitting freely to b. SHAG-BARK HICKORY (H, ovata,). f 3 Both 5 and 7 ; fruit g More or less compressed pyriform; husk thin and tardily dehiscent; nut quite smooth and thick-shelled PIG-NUT HICKORY (H. ylabra) . g2 Subglobose with husk splitting freely; nut small, h Thin-shelled SMALL-FRUITED HICKORY (H. microcarpa) . h2 Thick-shelled PALE-LEAF HICKORY (H. villosa) . f* 7-9, mostly obovate and large; fr. with thick free-splitting husk and thick- shelled ribbed nuts; petioles and new growths g Densely hirsute; bark with rough firm ridges (not shaggy) ; nut globular or little compressed MOCKER-NUT HICKORY (H. alba) . g2 Glabrous or pubescent; bark shaggy with long strips; nut very large, compressed KING-NUT HICKORY ( H. laciniosa ) . fs 7-11, lanceolate to narrow obovate, the lower ones somewhat falcate; fr. with elevated sutures; nut with thin shell and generally bitter cornel. g Nut smooth, whitish and little compressed. BITTER-NUT HICKORY (H. minima). g2 Very rugose, ridged and compressed, brownish. WATER HICKORY (H. aquatica). f« 9-11 lance-ovate, falcate; fr. cylindrical-oblong, husk thin. PECAN (H. Pecan). e2 Leaflets 9-15, subsessile (except the terminal one) with reddish stems; fr. very small berry-like apples in loose cymose clusters; leaflets f Acuminate, glabrous and teeth scarcely spreading; leaf-buds glutinous. AMERICAN MOUNTAIN ASH (Sorbus Americana). f2 Acute or obtuse a. g Leaf-buds with rusty appressed hairs; Ifts. glabrate ab.; teeth spreading. LARGE-FRUITED MOUNTAIN ASH (8. scopulina) . g2 Leaf-buds whitish tomentose; Ifts. pubescent. ROWAN TREE (Sorbus Aucuparia) . es Leaflets 11-19 and f Sessile, viscid-pubescent as is all new growth; fr. nut with indehiscent husk BUTTERUNT (Juglans cinerea) . f2 Petiolulate, glabrous and leaf-stems spiny bn. ; fr. capsule. PRICKLY ASH (Xanthoxylum Clava-Herculis) . e* Leaflets 13-25, f Lance-ovate and green bn.; twigs glabrate; a large tree; fr. nut with indehiscent husk BLACK WALNUT (Juglans nigra) . f2 Lanceolate, pale pubescent bn.; twigs velvety; a small tree; fr. drupelets with crimson hair STAG-HORN SUMACH (Rhus hirta) . a* b c* KEY, BASED UPON LEAVES. 15 c2 LEAVES OPPOSITE; LEAFLETS d 3-7, entire at base, serrate or serrate lobed above; fr. samaras obliquely winged and in pairs jointed together at b Box ELDER (Acer ~Negundo). d2 5-11 and fr. a straight samara with terminal wing. e Samara with seed-bearing portion flattened and wing extending the entire length f Lateral leaflets sessile; calyx in the fertile flowers none. BLACK ASH (F. nigra). f2 Lateral leaflets stalked; calyx present g Samara obovate to spatulate; twigs terete. WATER ASH (F. Caroliniana). g2 Samara elliptic to spatulate; twigs 4-sided. BLUE ASH (F. quadrangulata) . e'- Samara with seed-bearing portion subterete; wing not extending to base; leaflets stalked; calyx present in fertile flower f Wing almost entirely terminal — slightly if at all decurrent on body g Leaves and branchlets glabrous or nearly so. WHITE ASH (F. Americana). g2 Leaves beneath and branchlets pubescent. BILTMOBE ASH (F. Biltmoreana) . f2 Wing decurrent somewhat on sides of body but not to base g Wing of samara spatulate h Branchlets and leaves glabrous or nearly so; leaves green beneath. GREEN ASH (F. lanceolata). h2 Branchlets and petioles velvety pubescent i Samara less than 2 in. long; calyx small. RED ASH (F. Pennsylvanica) . i2 Samara mostly 2 in. long or more; calyx enlarged. PUMPKIN ASH (F. profunda). g2 Wing of samara long-linear DARLINGTON ASH (F. Darlingtonii). b2 Palmately compound; fr. large coriaceous capsule; leaflets membranaceous and usually c 7, lance-obovate, cuneate, apiculate a., wrinkled. HORSE CHESTNUT (Aesculus Hippocastanum) . c2 5 (sometimes 6 or 7) d Oval or oblong, subsessile or acute or short acuminate a. OHIO BUCKEYE (Aesculus glabra) . d2 Obovato-oblong, short-stemmed, acuminate. SWEET BUCKEYE (Aesculus octandra). a 3 DECOMPOUND LEAVES; b Evenly bipinnate, with 8-12 pairs of pinnae each with many oblong oblique leaflets about % in. long; fr. pod MIMOSA TREE (Albizzia Julibrissin) . b? Irregularly bipinnate or sometimes ternate, single leaflets taking the place of some ' pinnae; petioles c Armed with prickles; fr. many small dark purple berries. HERCULES CLUB (Aralia spinosa). c2 Unarmed; fr. large broad pods with large seeds and sweet pulp. COFFEE-TREE (Gymnocladus doicus). 16 HOUGH'S AMERICAN WOODS. a4 a* BOTH COMPOUND AND DECOMPOUND LEAVES, the former often in fascicles, tree armed with large branching thorns; fr. a shining c Long contorted and twisted linnear many-seeded pod. HONEY LOCUST (Gleditsia triacanthos ) . c2 Short, oblique-ovate, 1-seeded pod. WATEB LOCUST (Gleditsia aquatica) . A SYSTEMATIC STUDY OF THE SPECIES WHOSE WOODS ARE REPRESENTED IN THE ACCOMPANYING SECTIONS. The timbers comprised in the series which this text is designed to accom- pany belong to what are known, botanically speaking, as Flowering and mostly Exogenous Plants. At the outset, therefore, we will, once for all, define these groups; and, as the characters herein given are equally true of all the species enumerated in the following pages, they need not be repeated in the further definition of the various sub-groups and species. FLOWERING OR PH^ENOGAMOUS PLANTS. Plants producing flowers which consist essentially of stamens and pistils, the latter bearing ovules or seeds. In distinction from the Flowering Plants are the Floicerless or Cryptogamous Plants, comprising the rest of the vegetable kingdom, from the very simply organized Slime Moulds and Bacteria up to the highly organized Ferns and Club-Mosses. But in the study of timbers this group is unimportant, as only in a few rare cases do any of its representatives attain the dimensions of trees. Those exceptions are the Tree-Ferns of tropical countries — gigantic ferns, which sometimes attain the height of fifty or sixty feet, with straight shafts quite like tree trunks and tops consisting of a bunch of enormous plume-like fronds. They, however, are of practically no value as timber. EXOGENOUS OR DICOTYLEDONOUS PLANTS. Flowering plants whose stems consist of a central column of pith sur- rounded by wood in concentric layers, and this in turn by bark; the stems increasing in thickness by the addition of a new layer each year to the wood externally and to the bark internally. Leaves mostly netted-vein. First leaves of the embryo (cotyledons) two and opposite, or (in the 18 HOUGH'S AMERICAN WOODS. Conifers) several in a whorl. Parts of the flower in fours or fives, very rarely in threes. A second class of Flowering Plants and comprising the rest of the group is the Endo- genous or Monocotyledonous Plants, characterized by having stems in which the wood occurs as threads or bundles running through a cellular, pith-like tissue so that a trans- verse section exhibits the wood as dots and not in concentric rings. Leaves mostly parallel-veined. Embryo with single cotyledon, or rarely two, and then alternate and unequal. Parts of the flower generally in threes. In southern United States and else- where in or near the tropics trees are found, such as the Palms, etc., which belong to this class, but none that we have to do with at present. Exogenous plants are subdivided into two well-marked groups or sub- classes — Angiospermce and Gymnospermce. The former includes by far the greater part of the Flowering Plants, and most of the species repre- sented in "American Woods " are representatives of it. ANGIOSPEKM/E. Flowering, exogenous plants in which there is a complete pistil — with stigma and closed ovary — containing ovules which develop into seeds at maturity. This sub-class comprises many groups of plants known as Orders, and such as are represented by plants which attain the dimensions of trees, within the limits of the United States, we purpose to consider in the follow- ing pages : ORDER ILICINEAE: HOLLY FAMILY. Leaves simple, mostly alternate, coriaceous, ex-stipulate and mostly evergreen. Flowers small, white or greenish, axillary, 4-8 numerous and sometimes dioecious; calyx minute, free, imbricated in the bud; corolla regular, cleft or almost parted, hypogynous, imbricated in the bud; stamens as many as the divisions of the corolla, alternate with them and attached to their base; anthers adnate, opening lengthwise; ovary free from the calyx, 4-8-celled, with a single suspended ovule in each cell; stigmas 4-8 or united into one, nearly sessile. Fruit drupaceous, with 4-8 anatropous seeds containing large fleshy albu- men and minute embryo. Trees and shrubs of over one hundred species, some of considerable economic value. GENUS ILEX, L. Teaves alternate. Flowers lateral, single or clustered and usually perfect (but many are abortive), usually 4 (but sometimes 5-8) numerous; calyx persistent; petals distinct or scarcely united at the base, obtuse, oval or obovate, spreading; stigmas separate or united. Fruit a drupe-like berry, and usually red or purple. Trees and shrubs of about one hundred sixty species of which thirteen inhabit eastern North America (none the western side of the continent} and five of these are trees. (Ilex is an ancient Latin name, but originally applied to a species of Oak.) 276. ILEX CASSINE — CASSENA HOLLY. 19 276. ILEX CASSINE, L. CASSENA HOLLY. DAHOON. HENDERSON- WOOD. Ger., Cassena Stechpalme; Fr., Houx de Cassena; Sp., Acebo de Oassena. SPECIFIC CHARACTERS: — Lea res persistent, oblanceolate or obovate, 1^-3 in. long, cuneate at base, obtuse or acute or emarginate (sometimes rounded or retuse) at apex with revolute and entire margins or very remotely and sharply appressed serrate near apex, thick, shining dark green above, paler and pubes- cent on midribs beneath; petioles short, stout and usually pubescent. Flowers white, scarcely l/2 in. broad, in hairy pedunculate clusters from the axils mainly of the leaves of the year, the staminate 3-9-flowered and the pistillate usually 3-flowered, common peduncles nearly 1 in. long; calyx lobes acute, ciliate. Fruit red drupes ripening in autumn and persisting until spring, subglobose, *4 in. in diameter; nutlets prominently ribbed. The Cassena Holly, or simply Cassina as it is more often called, is a handsome small tree occasionally attaining the height of 20 or 30 feet (8 m.), with rather broad rounded top and a trunk that may be 12 to 18 inches (0.50 m.) in diameter. The bark of trunk is of a brownish gray color and quite smooth, being but slightly fissured lengthwise with age. In many localities, especially in the northern part of its range, it is known only as a shrub. HABITAT. — The coast region from southeastern Virginia south- ward to southern Florida, and westward to southern Louisiana, grow- ing in swamps and moist localities and reaching its largest dimensions in Georgia, Alabama and Florida. PHYSICAL PROPERTIES. — The wood is rather light but tough, close- grained, easily worked and of a creamy-white color. Specific Gravity, 0.4806 ; Percentage of Ash, 0.91 ; Relative Approximate Fuel Value, 0.4762; Coefficient of Elasticity, 64192; Modulus or Rupture, 572; Resistance to Longitudinal Pressure, 349 ; Resistance to Indentation, 113; Weight of a Cubic Foot in Pounds, 29.95. USES. — The trunks are not found abundantly of large enough size to give the wood special commercial value, though possessed of quali- ties quite similar to those of the common Holly (/. opaca) and suit- able for the uses to which that is applied. Its shiny evergreen foliage 20 HOUGH'S AMERICAN WOODS. and bright red berries entitle it to recognition as an ornamental species of value for localities sufficiently moist to meet its require- ments. MEDICINAL PROPERTIES of an emetic nature are said to exist in the leaves, and on account of this they were formerly employed by the Indians together with the leaves of the I. vomitoria, in their " black drink," for medicinal and ceremonial purposes. ORDER RHAMNACE^: BUCKTHORN FAMILY. Leaves simple, mostly alternate and often 3-nerved; stipules small, mostly deciduous. Flowers small, greenish, mostly perfect; calyx 4-5-lobed valvate; petals 4-5 inserted on the calyx; disk annular and lining the calyx-tube or none; stamens opposite the petals and inserted with them on the edge of the fleshy disk ; anthers introrse, versatile; ovary superior, 2-5-celled with 1 anatropous ovule in each cell; style columnar with terminal stigma. Fruit a drupe or drupe-like, tipped with the remnants of the style; seed usually with albumen. Trees and shrubs with watery bitter juice and of about five hundred seventy-five species, grouped in forty-five genera. They are natives of warm and temperate regions, and six of the genera have aborescent representatives in the United States, Rhamus only being represented in the northeastern states. GENUS RHAMXUS, L. Leaves mostly alternate and deciduous or persistent, petiolate, conduplicate in the bud. Flowers perfect or polygamous in small axillary cymes, racemes or panicles; calyx campanulate, 4-5-lobed; petals 4-5, emarginate and hooded around the stamen or none; stamens 4-5 with very short filaments; ovary ovoid, free from the disk; style 3-4-cleft or lobed. Fruit a drupe with succulent flesh and 2-4-nutlets each containing a single erect grooved seed with large foliaceous cotyledons and scant albumen. Trees and shrubs with bitter bark and often spinescent branches, of about seventy species, inhabiting chiefly northern temperate and tropical regions. Five or six species are indigenous to the United States and at least one or two others are naturalized from Europe. (The name is the classical Green name of the European Buckthorn.} 277. RHAMNUS CATHARTICA, L. COMMON OR EUROPEAN BUCKTHORN. WAYTHORN. Ger., Stechdorn; Fr., Nerprun; Sp., Ramno carliartico. SPECIFIC CHARACTERS: — Leaves opposite, deciduous, broad ovate or oval, iy>-3 in. long, mostly rounded or obtuse at base, obtuse or acute, finely crenate serra'te, glabrous, with 2-4 pairs of prominent veins running from near the base nearly to the apex; winter buds scaly. Flowers (May- June) about % in. wide, in 2-5 axillary clusters, 4 numerous; petals very narrow. Fruit subglobose, black, about */4 in. across, very bitter and containing 3 or 4 nutlets; seed silicate on the back. 277. KHAMNDS OATHARTICA — BUCKTHORN. 21 A small tree, under most favorable conditions only attaining the height of 25 or 30 feet (9 m.), with bushy rounded or -spreading top of many crooked spiny branches and small stiff branchlets. Its trunk is short, rarely over 1 ft. (0.30 m.) in diameter and vested in a dark gray bark, rough with firm longitudinal or reticulate ridges. It is much more common as a shrub than a tree of the above dimensions. HABITAT. -- The native home of this species is Europe and northern and western Asia, but it has become thoroughly naturalized in localities in this country, as the result of its introduction for hedges and ornamental purposes. PHYSICAL PROPERTIES. — Wood heavy, hard, strong, firm, very durable, of yellowish or pinkish brown color, with thin whitish sap- wood, and of markedly characteristic grain. USES. — The qualities of the wood would suggest its usefulness in turnery, for small articles of wooden-ware, tool handles, etc., where hardness and strength are prime requisites, but owing to its scarcity in desirable size it is not of commercial importance. The chief use- fulness of the Buckthorn lies in its value for hedges, its very ramose habit with stiff spiny branches making it an effective barrier. Its attractive foliage, close clusters of small black berries and hardy nature make it popular for shrubberies and ornamental planting. MEDICINAL PROPERTIES of a cathartic nature exist in the bark of this species, but it is not now as much used in medicine as it was formerly. ORDER HIPPOCASTANACE-ZE: HORSE-CHESTNUT FAMILY. Leaves deciduous, opposite, petiolate, digitately compound, with 3-9 serrate leaflets, and without stipules. Flowers appearing after the leaves, conspicuous, polygamous, in showy terminal cymes or panicles, only the lowermost flowers generally fertile; pedicel jointed; calyx campanulate with 5 unequal lobes, imbricated in the bud; petals 4-5, unequal, clawed; disk hypogenous, annular; stamens 5-8, usually 7, unequal with elongated filiform filaments and introrse 2-celled anthers longitudinally dehiscent; ovary sessile, 3-celled, with 2 ovules in each cell; style slender, elongated, curved, and with terminal stigma. Fruit a coriaceous 3-valved 1-2-seeded capsule, loculicidally dehiscent; seeds large, round or irregularly hemispherical with smooth shining brown coat, large pale hilum, large thick unequal cotyledons, 2-leaved plumule and remaining underground in germination. Trees and a few shrubs with ill-scented bark, large branchlets and buds, and of about eighteen species natives of North America and Asia and grouped in two genera, Aesculus and Billia, the latter a genus of Mexico and Central America. GENUS AESCULUS, L. A genus of t«n or twelve species of which four native and one naturalized arc represented among the trees of America. The characters are those of the family. The name is the classical name of a kind of oak and transferred to this genus. 22 HOUGH'S AMERICAN WOODS. 278. AESCULUS OCTANDRA, MARSH. YELLOW BUCKEYE. SWEET BUCKEYE. Ger., Gelbe Rosskastanie ; Fr., Marronnier jaune; Sp., Castano de caballo amarillo. SPECIFIC CHARACTERS : — Leaves with petioles 4-6 in. long and usually 5 (some- times 6 or 7) obovate-oblong or elliptical leaflets, cuneate at base the lowermost oblique, acuminate, serrate,' pubescent at first but finally nearly glabrous and dark green above, duller and hairy tufted in the axils beneath. Flowers (April- May) 1}& in. long, yellow, in loose pubescent panicles 5-7 in. long; petals 4, unequal, longer than the calyx; stamens usually 7, shorter than the petals; ovary pubescent. Fruit about 2 in. long smoothish, with pale brown seed about l1/^ in. long. Var. hybrida (de C.) Sarg. (var. purpurascens Gray ) has pink or purple flowers and under surface of the leaflets, petioles, etc., pale pubescent. The Yellow Buckeye is the largest of our native Buckeyes, as it occasionally attains the height of 90 or 100 feet (30 m.), or more, and may have a trunk diameter of 3 or 4 feet (1m.) but is usually a tree of more medium size. When growing in the open it develops a rounded or oblong top of rather dense foliage, and the bark of trunk is of a dark gray-brown color exfoliating in large rounded or irregular scales. HABITAT. — The Allegany Mountain region from western Pennsyl- vania to northern Georgia and westward to Iowa, Kansas and eastern Texas, growing in rich, moist soil. PHYSICAL PROPERTIES. — Wood light, soft, quite tough and strong, close-grained, easily worked and of a yellowish white color with abundant lighter sap-wood. Specific Gravity, 0.4274 ; Percentage of Ash, 1.00; Relative Approximate Fuel Value, 0.4231; Weight of a Cubic Foot in Pounds, 26.64. USES. — The qualities of this wood, like that of the allied Fetid Buckeye, make it peculiarly suitable for use in the manufacture of artificial limbs, splints and other articles of wooden-ware where light- ness is an important requisite. It is said that flour made from the nuts of this tree is excellent for paste which possesses an adhesive power greater than that of ordinary paste. The tree though occasionally planted for ornamental purposes is not as popular as the introduced Horse-chestnut (Ae. Hippo- castanum). 279. RHUS COPALLINA — DWARF SUMACH. 23 ORDER ANACARDIACE^: SUMACH FAMILY. Leaves mostly alternate and without stipules; branchlets terete and with large pith. Flowers small, regular, polygamous, dioecious or perfect; calyx lobes mostly 5; petals of same number and imbricated in the bud or none; stamens as many as the petals or twice as many ( rarely fewer ) and inserted with them on the edge of an annular hypogenous disk; filaments filiform and anthers oblong. introrse, 2-celled, longitudinally dehiscent; ovary usually 1-celled and containing a solitary anatropous ovule suspended by a slender funicle rising from the base of the ovary; styles 1-3, stigmas terminal. Fruit generally a small drupe; seed with membranous or crustaceous coat; cotyledons fleshy and containing little or no albumen. Trees and shrubs with resinous or milky juice, of about fifty genera and four hundred species mainly of warm or tropical regions. Three genera are repre- sented in the trees of the United States. GENUS RHUS, L. Leaves lostly unequally pinnate and deciduous, a few simple and persistent, alternate. Flowers mostly dioecious in compound axillary or terminal panicles; calyx mostly 5-cleft or parted and persistent; petals spreading and longer than the calyx-lobes ; stamens 5, alternate with the petals and inserted with them under the margin of the annular disk; pistil solitary, sessile, with three terminal styles. Fruit a subglobose drupelet mostly in thyrses with thin dry hairy or glabrous outer coat and a single bony or crustaceous stone; cotyledons foliaceous. Trees, shrubs and climbing vines of about one hundred twenty species, natives mainly of the warmer parts of the north and south temperate regions. Some are of great economic value, as those producing the lacquer and vegetable wax of Japan, tannin, etc., and several possess poisonous properties. Sixteen or seventeen species are natives of the United States of which about a half dozen may be considered as trees. (Rhus is the classical Greek name of the European Sumach.) 279. RHUS COPALLINA, L. DWARF SUMACH. Ger., Zwerg-Sumach; Fr., Sumac nain; Sp., Zumaque enano. SPECIFIC CHARACTERS: — Leaves deciduous, pinnate, 6-8 in. long, with pubescent petiole and rachis, the latter winged between the leaflets; leaflets ovate-lanceolate to oblong, subsessile, entire or remotely serrate towards the apex, acute or acu- minate, lustrous dark green above, paler and pubescent beneath. Flowers in midsummer, about % in. across, yellow-green, in short dense pubescent terminal panicles, 4-6 in. long; the pistillate considerably smaller. Fruit in compact erect or nodding clusters, often persisting on the branches through the entire winter; drupe about % in. across, compressed, crimson, covered with short acid hairs; stone smooth. Var. lanceolata, Gray, is a small tree of eastern Texas with narrower and more falcate leaflets and larger bunches of flowers and fruit. Var. leucantha (Jacq.) de C. is another form found in Texas (near New Braunfels) with white flowers. The Dwarf Sumach is a small tree, at its best only attaining the height of 25 or 30 ft. (9 m.) and 8 or 10 in. (0.20 m.) in diameter 24 HOUGH'S AMERICAN WOODS. of trunk and is very commonly only a shrub in habit of growth. As a tree its trunk divides into a few large crooked branches and it forms a broad open top. The bark of trunk is of a grayish black color and quite smooth, excepting for the prominent horizontal lenti- cels which break its surface. Its singular foliage and nodding clusters of crimson fruit make it easily recognizable. HABITAT. — It is a species of wide distribution, being found from southern Maine to Iowa and southward to the Gulf Coast, preferring the dry soil of gravelly hillsides and uplands, which it sometimes occupies in considerable abundance, even to the exclusion of nearly everything else. PHYSICAL PROPERTIES. — The wood is light, soft, not strong and. unlike the golden-tinted woods of most of the Sumachs, is of a light greenish brown color with thin whitish sap-wood. Specific Gravity, 0.5273; Percentage of Ash, 0.60; Relative Approximate Fuel Value, 0.5241 ; Coefficient of Elasticity, 73647 ; Modulus of Rupture, 663 ; Resistance to Longitudinal Pressure, 377 ; Resistance to Indentation, 109 ; Weight of a Cubic Foot in Pounds, 32.86. USES. — The leaves and bark are rich in tannin and largely used, in regions where abundant, for tanning and dyeing purposes. OBDEB LEGUMINOS-ZE: PULSE OB PEA FAMILY. Leaves alternate, usually compound, with stipules. Flowers regular or papilion- aceous and usually perfect; stamens 10 or many, with diadelphous (sometimes distinct) filaments and 2-celled anthers opening" longitudinally; pistil solitary, with one or several-celled superior ovary. Fruit a legume. A very large and important family of trees, shrubs and herbs of wide distribu- tion throughout all temperate and tropical regions, generally free from obnoxious properties and many of its representatives of the greatest economic importance. There are about 7,000 species grouped in nearly 450 genera, and of these seven- teen have arborescent representatives in the United States. GENUS CLADRASTIS, RAF. Leaves deciduous, odd-pinnate, with stout terete petioles enlarged at base and few large entire short-stalked leaflets; buds small, naked superposed and formed within the base of the petiole. Flowers white, papilionaceous, in terminal panicles or racemes; calyx narrow-campanulate, 5-toothed; petals with suborbicular re- flexed standard and those of the keel incurved and distinct; stamens 10, distinct, with slender filaments and uniform versatile anthers; ovary subsessile, linear and tipped with slender incurved style with terminal stigma; ovules several, suspended. Fruit a glabrous compressed linear margined tardily dehiscent legume,' containing few oblong compressed seeds with slender funicle and no albumen Trees of a single species of limited natural distribution in the Atlantic states, but widely planted for ornamental purposes. They have yellowish heart-wood somewhat watery juice and smooth bark. Another tree (Maackia Amurensis Kupr.), of eastern Asia and Japan, is referred by some writers to this genus but by others is considered to be generically distinct. (Name formed from Greek roots meaning brittle branches.) 280. CLADKASTIS LUTEA — YELLOW -WOOD 25 280. CLADRASTIS LUTEA, KOCH. YELLOW-WOOD. GOPHER-WOOD. VIRGILIA. Ger., Gelb-holtz; Fr., Bois jaune; Sp., Madera amarilla. SPECIFIC CHABACTEBS: — For botanical characters see generic description, this being the only species. • A tree of medium size, sometimes attaining the height of 50 to 60 ft. (18 m.) and a trunk diameter of 18 in. to 2 ft. (0.60 m.) or rarely somewhat surpassing those dimensions. It is one of the hand- somest of our deciduous trees, with a full rounded top of clean rich green umbrageous foliage, and when festooned with its long stems of white pea-like flowers it is an object of uncommon beauty. Its trunk is vested in a thin bark of the smoothness of Beech bark, but of somewhat darker color. HABITAT. — From Cherokee county, Xorth Carolina, westward through central Tennessee and from southern Kentucky to northern Alabama and Georgia; also in southwestern Missouri. It is a rare and local tree in this limited range, and is found mainly in rich well- drained soil along the courses of streams. PHYSICAL PROPERTIES. — Wood rather light, hard, strong, close- grained, compact and of a light-brownish yellow color with paler yellow sap-wood. Specific Gravity, 0.6278; Percentage of Ash, 0.28 ; Relative Approximate Fuel Value, 0.6260; Coefficient of Elasticity, 100226 ; Modulus of Rupture, 902 ; Resistance to Longitudinal Pres- sure, 534; Resistance to Indentation, 183; Weight of a Cubic Foot in Pounds, 39.12. USES. — Little use is made of the wood though the heart-wood is used to some extent for making a yellow dye. The chief claim of the tree to economic value is its use as an ornamental shade tree, and as such is sure to grow in public favor as its qualities become more widely known. It is hardy at least as far north as northern New York, and little effected by insect-pest or blight. ORDER HAMAMELIDACE^: WITCH HAZEL FAMILY. Leaves simple, deciduous, alternate, petiolate, with stipules. Flowers perfect or unisexual; calyx 4-lobed and with tube coherent to the ovary or none; petals 4 and perigynous or none; stamens 4 or 8 or numerous with 2-celled introrse anthers; ovary compound formed by the union below of 2 carpels, 2-celled and with 2 subulate styles; ovules 1 or many, anatropous and suspended from an 26 HOUGH'S AMERICAN WOODS. axile placenta. Fruit a woody 2-beaked capsule dehiscent at the summit; seeds 1 or several with large straight embryo and scant albumen. The Witch-Hazel family consists of trees and shrubs of about eighteen genera and thirty-five species of eastern North America, Asia, Madagascar and South Africa. Three of the genera, two of which are arborescent, are represented in North America. GENUS HAMAMELIS, L. Leaves obovate to oblong, undulate-crenate, inequilateral at base, involute in the bud, with veins conspicuous beneath; stipules infolding the bud. Flowers appear in autumn in the American species in 3-flowered clusters from the axils of the leaves, perfect, each sub-tended Ity 2-3 acute bracts; calyx 4-parted, per- sistent and adnate to base of the ovary; petals 4, strap-shaped, spirally involute in the bud, hypogenous, alternate with the sepals; stamens 8 in 2 rows on margin of receptacle, those opposite the calyx-lobes fertile, the others small and abortive; filaments very short; anthers oblong, opening by valves; ovary 2-celled, each containing a single ovule; styles 2, subulate, spreading, stigmatic at apex. Fruit a woody capsule, 2-4-lobed at apex, loculicidually dehiscent and when ripe forcibly discharging its seeds which are lustrous brown, oblong, pointed, cotyledons foliaceous. Small ti'ees and shrubs of three species, one of eastern United States, one of central China and one of China and Japan. The name is from two Greek words alluding to the flowering of the tree at the same time as the ripening of the fruit of the previous season. 281. HAMAMELIS VIRGINIANA, L. WITCH-HAZEL. Ger., Zauberstrauch; Fr., Noisetler des sorcieres; Sp., Bruxa- avellano. SPECIFIC CHARACTERS: — Leaves oval to obovate, short-petiolate, rounded or subcordate and very unequal at base, from rounded to acute or acuminate at apex, undulate crenate, membraneaceous, smooth dark green above, lighter and pubescent on veins beneath. Flowers nearly sessile; petals bright yellow, decidu- ous; calyx pubescent, persistent. Fruit capsules dull brown, opening elastically. The Witch-Hazel is ordinarily only a tall shrub but on the slopes of the Allegany mountains it becomes a tree 30 to 40 ft. (10 m.) in height, with rather wide top of crooked branches. Its trunk is some- times 8 to 10 in. (0.20 m.) in diameter and is vested in a thin and rather smooth grayish bark. HABITAT. — As a tree the Witch-Hazel is limited in distribution to the Allegany mountains, but as a shrub is of wide distribution, being found throughout eastern North America generally from Nova Scotia to the Gulf States and westward to the treeless plains of the middle west. It grows in moist, loose loam along the courses of streams and low-lands which are of a more or less sandy nature. PHYSICAL PROPERTIES.— Wood rather heavy, hard, compact, with 281. HAMAMELIS VIRGINIANA — WITCH HAZEL. 27 exceedingly small evenly distributed ducts and inconspicuous medul- lary rays. It is of a mottled yellowish brown color with abundant brownish white sap-wood. Specific Gravity, 0.6856 ; Percentage of Ash, 0.37 ; Relative Approximate Fuel Value, 0.6831 ; Weight of a Cubic Foot in Pounds, 42.73. USES. — Very little use is made of the wood of the Witch-Hazel, though possessed of properties that would suggest its usefulness in turnery, as for small articles of wooden ware, etc. MEDICINAL PROPERTIES. — The bark of the Witch-Hazel has long been used by the Xorth American Indians as a sedative to allay inflammations. An extract is now widely made from the bark and used very extensively in domestic practice on account of the same virtues as recognized by the Indians, and is particularly valuable in allaying inflammations in all mucous surfaces. OBDEE CORNACE^E: DOGWOOD FAMILY. Leaves deciduous, simple, variously arranged and without stipules. Flowers regular, in cymes, heads, or golitary; calyx adnate to the ovary, its limb 4-5- toothed or none; petals 4-5 or none; disk epigenous; stamens as many as the petals and inserted with them on the margin of the disk; anthers introrse, 2-celled with a solitary anatropous suspended ovule in each cell. Fruit a 1-2- seeded drupe: seed oblong with foliaceous cotyledons and copious albumen. The Dogwood Family consists of trees and shrubs of about sixteen genera and eighty-five species mainly of north temperate regions. Two genera have arbores- cent representatives in North America. GENUS NYSSA, L. Leaves alternate, petiolate, conduplicate in the bud. Flowers small, greenish, polygamo-dioecious, in capitate clusters (or the fertile ones sometimes solitary) with slender peduncles, from the axils of the lower leaves or of caducous bracts, the staminate flowers numerous: calyx minutely 5-lobed; petals 5, minute and thick or none; stamens 5-15 in the staminate flowers, exserted and inserted with the petals on the edge of the entire or lobed disk; pistillate flowers sessile at the end of the peduncle, few together, bracted; stamens included; ovary 1-2-celled and style elongated, slender, curved and stigmatic towards the apex on one side. Fruit an oblong or ovoid drupe with thin tart juicy flesh and thick-walled horny com- pressed ridged or winged stone; embryo straight. Trees of five species of which four are natives of eastern North America and the remaining one of southeastern Asia. They produce very fine grained tough wood, with contorted fibre and annual rings indistinctly indicated. The fruit is very tart and is sometimes used in conserves. (Nyssa is the name of a water nymph and applied to the genus because of its species growing in wet places. ) 28 HOUGH'S AMERICAN WOODS. 282. NYSSA AQUATICA, MAKSH. COTTON GUM. TUPELO GUM. LAKGE TUPELO. Ger., Groszer Gummibaum; Fr., Gommier grand; Sp., Tupelo grande. SPECIFIC CHARACTERS: — Leaves ovate-oblong to oval, mostly rounded or sub- cordate at base, long-acuminate, irregularly angular-dentate or entire, tomentose at firse but finally glabrous dark green above, pale and downy pubescent beneath, 5-10 in. long; petioles l1/^-21/^ in. long. Floicers appear in March and April, with long slender peduncles from the axils of bud-scales below the new leaves; the staminate in dense capitate clusters, the pistillate solitary; style revolute into a coil. Fruit on slender drooping stems, 2-4 in. long, obovoid, tipped with the remnants of the style, about 1 in. long, dark purple with pale dots, tough skin and narrow obovoid stone, compressed and with about 10 sharp wing-like longitudinal ridges. The Cotton Gum is the largest representative of its genus, as it sometimes attains the height of 100 ft. (30 m.), with straight columnar trunk 3 or 4 ft. (1 m.) in diameter above its wide flaring base. This may be of more than double that diameter at the surface of the ground, and is usually hollow. Unlike the horizontal and drooping habit of branching seen in the allied Sour Gum, the Cotton Gum is of quite upright habit of growth and its branches are less numerous than are those of that tree. The bark of trunk is of an ashen gray color and exfoliates in large irregular scales, showing but little tendency to form prominent ridges such as seen in the other species. HABITAT. — The Atlantic Coast region from the Dismal Swamp in eastern Virginia southward to central Florida and westward into eastern Texas. It also ranges up the Mississippi River valley to southeastern Missouri, and is particularly abundant in the lower Mississippi basin. It inhabits deep swamps and the margins of streams and ponds, where its base is covered with water during a con- siderable portion of the year. In the loose miry soil of these localities the exaggerated width of its base is really necessary to give it the requisite stability. PHYSICAL PROPERTIES. — Wood quite soft, light, tough, compact, difficult to split, with very small and quite uniformly distributed open ducts and exceedingly fine medullary rays. It is of a light brown color with very abundant buff-white sap-wood. Specific Gravity, 0.5194; Percentage of Ash, 0.70; Relative Approximate Fuel Value, 0.5158; Coefficient of Elasticity, 51678; Modulus or Rupture, 655; 283. OXYDENDRUM ARBOREUM SoRREL-TREE 29 Resistance of Longitudinal Pressure, 365; Resistance of Indentation, 161; Weight of a Cubic Foot in Pounds, 32.37. USES. — The Cotton Gum is the most valuable timber tree of its genus, its large columnar trunks producing lumber especially useful for boxes, fruit-crates, etc., where toughness and lightness are import- ant requisites. The wood is also used in the manufacture of wooden ware and that of the roots is used for floats, etc., as a substitute for cork, and in the manufacture of surgical tents. For the last men- tioned use few if any other woods equal it in value. ORDER ERICACE VI 140 X 237 VII 165 XII 296 XII 297 II 45 VIII 193 X 238 VII 157 X 229 II 254 II 32 VIII 178 IV 84 VI 142 VI 143 XII 285 *Taxodium distichum- *Taxus brevifolia * Thuja occidentalis * Thuja plicata (T, gigantea) *Tilia americana *Toxylon pomiferum *Tsuga canadensis Carr. ( Abies Canadensis Michx. ) Tsuga caroliniana Tsuga heterophylla Tsuga mertensiana Carr. (T. Pattoniana Engel.) . . *Tumion californicum Greene (Torreya Calif or nica Torr.) Tumion taxifoliutn Greene ( Torreya taxifolia Arn. ) . Vlmus alata *Ulmus americana *Utmu8 thomasi (U. race- mosa) *Ulmus pubescens Walt. (U. fulva Michx. ) Umbellularia calif 'arnica. . . . *Vaccinium arbor eum * V it-is aestivalis . Part V VI I IX III XII I XII IX I VII No. 119 144 24 220 3 291 21 299 223 VII 171 VI 14o V 120 XII 289 II 33 II 34 11 159 XI 258 IV 78 *Washingtonia filifera ro- busta Parish (W. fila- mentosa 0. K. ) VII 200 Xanthoxylum clava-herculis. V 106 *Yucca arborescens .. VII 175 HANDBOOK OF THE TREES OF THE NORTHERN STATES AND CANADA, EAST OF THE ROCKY MOUNTAINS. PHOTO-DESCRIPTIVE. ROMEYN BECK HOUGH, AUTHOR AND PUBLISHER HANDBOOK OPENED AT RED OAK. Observe that two pages facing each other are demoted to a species. In this way all of the trees are treated. SHIS work is ''photo-descriptive," in that the distinctive characteristics of the various species are shown in carefully made photographic illustrations. So completely has this plan been carried out. after a vast amount of experiment and field work, that the book enables one who has never studied botany to easily identify the trees by com- parison with its illustrations. It appeals alike to the amateur observer of trees, the lum- bermen and the technical botanist. Its illustrations cover the field in the following five exclusive particulars : • (1) Leaves and Fruits in fresh condition, against a background ruled into square inches (a unique plan, original with the author) whereby natural sizes are at once ap- parent, and so perfect are the pictures that even minute details, as nature of surface, etc.. are distinctly shown. (2) Leafless Twigs, generallv a full season's growth, showing the characters by which the trees may be identified in winter — a revelation to those who have thought ft possible to identify trees only in summer. (3) Typical Barks Of Trees as found in field and forest with natural environment, a 1-foot rule being affixed to indicate size. They show the characters by which the wood- man knows the trees. (4) Wood Structures (transverse) of at least one species of each genus, magnified fifteen diameters, to aid in the identifying of woods. This feature is of special value to dealers and workers in woods. (5) Maps Indicating1 Distributions of the various trees. The illustrations represent 690 negatives, all made on account of scientific value, and the maps 191 line engravings. The text gives important information as to botanical char- acters, habitats, uses, etc., and carefully prepared keys and a glossary. Royal octavo, X + 470 pages. Size of page, 6f x 9^ inches. Price $6 in buckram binding ; $8 in half morocco. Expressage prepaid. Sample pages sent on request. What Critics and Patrons say of the "Handbook of the Trees." "Am greatly impressed with the very thorough man- ner in which each tree is illustrated. The half tones of trunks and foliage are exceedingly attractive. I am glad to have a copy." Gifford Pinchot, Forester, Washington, D. C. "Your HANDBOOK OF TREES is the most ideal handbook I have ever seen. The plan of illustrating each species by photographic pictures of the trunk, branchlets, leaves and fruit, accompanied by a concise description of the species, and a map showing its geographic distribution, was a happy conception, and the mechanical advantage of bringing these together on facing pages, so as to fall under the eye at once, is an additional help to all who use the book. It appeals to me as a model in treatment and execution and is by far the most convenient book I have ever seen for the ready identification of natural history objects. The time! labor and expense necessary in secur- ing fresh specimens of upwards of 200 species of trees from various parts of the country for illustration must have been very great : your success is a lastin? tribute to your patience, perseverance and photographic skill." C. Hart Merriam, Chief U. S. Biological Survey. "Just the sort of thing we want, and in every way more valuable than anything we have." Alfred Gaskill, -State Forester of N. J. " It is doubtful if any book placed before the public in recent years possesses the peculiar charm of this HANDBOOK OF THE TREES. A veritable encyclopedia of hard-won knowledge, and the manner of presentation is as beautiful and fascinating as it is scientifically accurate and generally instructive. No observer of the trees that we can recall has performed such a valuable service as Mr. Hough in his book. Never was a camera used to better purpose than in the preparation of this work. Full information is given in the text, which also contains an analytical key, glossary and index, which are the best of their kind we have ever seen. A unique feature, which should commend the work to lumbermen, timber holders, cruisers and those identified with the lumber and timber interests, is the series of magnified wood structures, designed as an aid in identifying timbers." St. Louis Lumberman. " Altogether the most interesting and most valuable book on trees that I have ever seen. It is a fine example of an excellent plan thoroughly carried out, and is worth fully double the amount you charge for it. Send me six more copies for presentation to friends in England." W. H. Boardman, Editor Railroad Gazette. " It is impossible to convey in a few words an adequate impression of the value and beauty of the 'HANDBOOK.' It is a mine of valuable information, and with it the .study of trees becomes a delightful diversion." W. T. Hornaday, Director N. Y. Zoological Park. "The most satisfactory volume I possess on the subject, out of a total of some 250 books on this and kindred subjects." Dean Alvord, New York. " The most valuable guide to its subject ever published. Mr. Hough is the author of a most facinating publica- tion called AMERICAN WOODS, which embodying the results of many years of close pursuit of knowledge in the field, is of the most exceptional excellence. * * * He has made a wholly novel entrance in the chronicle of nature and has given to the world an unexampled work. The illustrations are all presented with an invaluable guide to proportions in the method of a ruled background, giving square inches as a measure. This device of Mr. Hough's is most welcome The photographs are de- lightful to any wanderer of the woods. We shall ever be grateful to Mr. Hough for his sincere and generous help." Springfield Republican. "While prepared to see a fine work, I confess my deals are far surpassed. It is most choice. No man who loves trees should be without it. The whole ex- ecution of the work, subject-matter and illustrations are beautiful, and my family and myself are highly delighted." Dr. Jas. H. Jackson, Dansville, N. Y. " Many attempts have been made to bring into popular form such descriptions of our trees as would enable the amateur to recognize the various species at different seasons. It has remained for Mr. Romeyn B. Hcugh to produce a book that adequately accomplishes this laud- able purpose. But it does much more, it brings to the forester, lumberman, cultivator and botanist alike such a compact and comprehensive portraval of the trees as has never before been at his service. The book may be com- mended as indispensable for all students of trees." Botanical Gazette. "Admirably adapted to the average person who wants to be able to tell the trees apart with the least possible study." The Outlook. "There is nothing but praise for the work as a whole." The Nation. "A book of the utmost value. Should be in the hands of everybody who has a patriotic pride in the forests of our country." Collier's Weekly. "An extraordinarily thorough and attractive hand-book of the trees, furnished with realistic illustrations that al- most carry the scent and touch of the original." New York Times, Saturday Book Review. "Of greatest value to foresters, lumbermen, botanists, nature students and sportsmen. We cannot recommend the book too highly to those fond of nature study and the forest." Forest and Stream. "Without question the best book of its kind on the mar- ket at present. For every lover of trees and for the man who 'wants to know '. there is no other book so helpful. I cannot speak too highly of the book." Gustav Straubenmueller, Associate Supt. Schools, New York. "The most interesting work on trees that I have ever seen, and I own nearly all that have been published in the United States." John Alden, Lawrence, Mass. " A perfectly delightful book. The illustrations of the leaves, fruits, etc., are very fine indeed, while the illustra- tions of the trunks, are works of art. To every lover of trees this book will be a source of inspiration." Dr. J. N. Rose, U. S. National Herbarium. "Unique and beautiful, as well as extremely useful, it deserves a place in the library of every tree lover in the world." The Dial. "The deep and widespread interest in nature study has brought out many books, but none more thoroughly help- ful than Mr. Hough's HANDBOOK OF THE TREES. It is the work of a practical forester, scientifically accurate in his observations and record, a master of descriptive pho- tography, and withal a true lover of the tree." The Christian Advocate. " No other book that has been made — and it is safe to say no other that will be made— can take the place of this masterly production. * * * No library, public or private, is complete without it, and no school should be without it. Eight dollars may seem a large price before you have seen what it buys, but when you have seen you will wonder that it is so inexpensive." Dr. A. E. Winship, in Journal of Education. "By far the most useful book I have ever seen for libraries to give to most readers. One wholly unfamiliar with botany can easily identify the trees." Melvil Dewey, Pres. Amer. Library lust., in address before the Vermont State Library Asso- ciation. "Surely the" book should be upon the shelves of every library for the use of the lovers of trees, botanists, lum- bermen, etc. Mr. Hough comes of his love of trees by inheritance, as his father was the late Dr. Franklin B. Hough, the first U. S. Commissioner of Forestry." • Bangor Weekly Commercial. PREPARATIONS OF WOODS FOR STEREOPTICON These are transverse sections from 1-400 to 1-600 in. thick, mounted be- tween glass of standard stereopticon- slide size. 3^ x4 in., and enable the dis- play of characteristic wood structures, projected from nature itself, in a most satisfactory manner. The wood section covers a circular field generally 2f in in diameter on the slide. Price, 50 cents each; $10 per twenty-five, the purchaser's selection. Views of Typical Trees, Etc. Having rather unusual opportun- ity of studying trees in the field, on account of personally gathering the woods used in AMERI- CAN WOODS, the author is in the habit of making photographs that are of special interest in the study of trees. The. subjects selected are mainly as follows : (a) Isolated individual trees showing habit of growth, natural environ- ment, etc. (b) ^Iwrncttr- istic barks, (c) t tower* and leaves at flowering season. Fruits and mature leaves, (e) Leafless braneJilfts showing winter character. Natural sizes are always indicated and specimens shown in fresh condition. Prices : Photographs unmounted, 20 cents ; mounted, 25 cents ; stereopticon slides, 50 cents ; 25 for $10.00. MOUNTS OF WOODS FOR MICROSCOPE. These are transverse, radial and tangential sections, mostly 1-1200 in. thick, stained with methyl green and mounted in Canada balsam. These are indispensable in the study of wood technology. Prices, 50 cents each; f 10.00 per twenty-five, the purchaser's selec- tion. tyit may interest our patrons of AMERICAN WOODS to know that we carry in stock a supply of wood sections, such as are mounted in that work, and that we are pre- pared, to replace any that may become damaged or soiled. Our charge is 10 cents per specimen. The price of AMERICAN WOODS is $5.00 per part in cloth binding: $7.50 in half morocco: single specimen-pages, 25 cents: five for $1.00: twenty-five for $4.00; texts. 50 cents each ROMEYN B. HOUGH COMPANY, LOWVILLE, N. Y. 276. ILEX UASSIINE L. Cassena Holly. Dahoon. Henderson-wood. TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Ger. Cassena Stechpalme, ^v. I 8p. Acebo de Cassena* Houx de Cassena* Houf h, B A., LovrvfM*, N. V., U. S. A, 276. ILEX CASSINE L. Cassena Holly. Dahoon. Henderson-wood js**Xd^m TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION Cassena Stechpalme. Houx de Cassena, Acebo de Cassena* •d* fey *om*yfi 8. H«ugn, B. A , Low\ 277. RHAMNUS CATHARTICA L. Common or European Buckthorn. Waythorn. TRANSVCHSC SECTION RADIAL SECTION TANGCNTfAt SECTION. Stechdorn* Fr. Nerprun, $P. Ramno cathartico. >ut>n«h*a and Sect 277. RHAMNUS CATHARTICA L Common or European Buckthorn* Waythorn* TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Stechdorn* Nerprun« sp. Ramno cathartico. 278. AESCULUS OCTANDRA MARSH Yellow Buckeye* Sweet Buckeye. TRANSVERSE SECTION, RADIAL SECTION, TANGENTIAL SECTION. Gelbe Rosskastanie* Fr. Marronnler jaune« Castano de caballo amarillo* and Section* mad* by tom«yn ft. H«uoh, B. A., Lowvtlt*. M. V.. U. 278. AESCULUS OCTANDRA MARSH Yellow Buckeye, Sweet Buckeye, TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. / Ger. Gelbe Rosskastanie. *v. Marronnier jaune, 8p. Castano de caballb amarillo, ~---"-i»d end »«otlon« mad* toy Romvyn B. Hoiigh, B. A., Lowvilt*, N. 279. RHUS COPALLINA L Dwarf Sumach, TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Zwerg-Sumach. FT. Sumac natn. 8p. Zumaquc £nano. 279. RHUS COPALLINA L, Dwarf Sumach* TRANSVERSE SECTION RADIAL SECTION , Zwerg-Sumach* Fr. Sumac nain. s/>. Zumaque cnano. by Homey n B. Hough, B. CLADRASTIS LUTEA KOCH Gopher-wood* Virgilia* TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Gelb-holtz* Bois jaune* Sp. Madera amarilla. id* by Rom«yn B, Hough, S. A., Lowvlll*, N. Y., 280, CLADRAS TEA KOCH Yellow-wood. Gopher-wood* Vtrgilia, TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Gelb-holtz, Bois jaun< Madera amarilla. icta by Romoyn S. Hough, B. A., L 281. HAMAMELIS VIRGINIANA L Witch-hazel. ^ TRANSVtHSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Zauberstrauch. FT. Noisetier dcs sorcieres &P. Bruxa-avellano. 281. HAMAMELIS VIRGINIANA L, Witch-hazel. TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Zauberstrauch. Fr. Noisetier des sorcieres, Sp. Bruxa-avellano. 282. NYSSA AQUATIGA MARSH Cotton Gum. Tupelo Gum. Large Tupelo. Dl TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION Grosser Gummibaum. aum. FT. Gommier grand* Tupelo grande* by Romvyn B. Houghf B. A., LowviM*, N. 282. NYSSA AQUATICA MARSH Cotton Gum* Tupelo Gum. Large Tupelo. TRANSVERSE SECTION RADIAL SECTION. / TANGENTIAL SECTION. Grosser Gummibaum, aum* Fr. Gommier grand. Tupelo grande* 283. OXYDENDRUM ARBOREUM DG>, Sorrel-Tree. Sour- Wood* TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Sauerampferbaum, fr. Arbre d'oseille, Sp. Arbol de acedera. 10* By «ofr»«yn B. Hough, ft. A. 283. OXYDENDRUM ARBOREUM DC Sorrel-Tree. Sour- Wood, TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION Sauerampferbaum. FT. Arbre d'oseille. Arbol de acedera. 284. RHODODENDRON MAXIMUM L Rose Bay. Great Laurel. •RANSVERSE SECTION RADIAL SECTION. TANGENTIAL 8ECTIO Groszer Rosenlorbe lorbe Fn« Rhododendron grand. Rhododendron grande* A., tQwvilf*, N. Y. 284. RHODODENDRON MAXIMUM Rose Bay. Great Laurel. TRANSVERSE SECTION RADIAL SECTION TANGENTIAL SECTION Groszer Rosenlorbeer. Fr. Rhododendron grand *s>. Rhododendron grande. 285. SYMPLOCOS TINCTORIA L'HER Sweet-leat. Horse-Sugar, TRANSVERSE SECTION RADIAL SECTION TANGENTIAL SECTION. Zuckerblatt Fr. Fcuille sucrcc* Hota dulca. •0e by Rom*yn B. Hough, B. A., Co 285. SYMPLOCOS TINCTORIA L'HER Sweet-leaf. Horse-Sugar. r •••••••BBBBI TRANSVERSE SECTION RADIAL SECTION / TANGENTIAL SECT! Zuckerblatt. Feuilie sucree, 286. FRAXINUS CAROLINIANA M Water Ash. ••••K TRANSVERSE SECTION RADIAL SECTION. •ANGCNTIAL SECTION Wasser-Esche* Frene d'eaa Fresno de agua. t»y Romvyn B. Hough, B. A., LowviM*. 286. FRAXINUS CAROLINIANA IV. TRANSVERSE SECTION RADIAL SECTION. / TANGENTIAL SEC1 Wasser-Esche. Fresno de agua, 287. FRAXINUS BILTMORIANA BEADLE Biltmore Ash* TRANSVERSE SECTION RADIAL SCCTfON, - AL ICCTION. Biltmore Esche. FrSne de Blitmore sp. Fresno de Biltrnore. 287. FRAXINUS BILTMORIANA BEADLE Biltmore Ash. TRANSVERSE SECTION / TANGENTIAL « ugh, B. A., L< 290. MORUS ALBA L White Mulberry, TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION Weisze Maulbeerbaurru .FT. Murier blanc, *>. Moral bianco. 291. TOXYLON POMIFERUM RAP. Osage Orange* TRANSVERSE SECTION RADIAL SECTION TANGENTIAL SECTION. Bogen-Holz, Fr. Bois d'Arc% sp. Madera de area id* by Rom«yn B. Hough, B. A., LowviU*, N. Y., U. S. A. 29 I . TOXYLON POMIFERUM RAF Osage Orange, TRANSVERSE SECTION RADIAL SECTION. / TANGENTIAL SECTION. Bogen-Hob* FT. Bois d'Arc, Madcra de arco* 292. HICORIA VILLOSA ASHE Pale-leaf Hickory. TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Zottigc Hickory. Fr. Noyer villeaux* Sp. Nogal velludo. Pu6ll«h«d »nd S*otlon» mad* by Rom*yn 8. Hough, B. A., Lowvlll*. 292. HICORIA VILLOSA ASHE Pale-leai Hickory* TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Zottige Hickory. FT. Noycr villeaux, Sp. Nogal velluda »*• by Romcyn ft. Houf n, 8. A , Lowv 293. QUERCUS LYRATA WALT Over-cup Oak. TRANSVERSE SECTION, RADIAL SECTION TANGENTIAL SECTION Uberkelch-Eiche. FT. Che ne lyre, &P. Roble de pantano. 293. QUERCUS LYRATA WAL Over-cup Oak. TRANSVERSE SECTION RADIAL SECTION. / TANGENTIAL SEC' Uberkelch-Eiche, FT. Chene lyre* Sp. Roble de pantano. 294. QUERCUS TEXANA BUCKL Southern Red Oak. Schneck's Oak, TRANSVERSE SECTION RAOIAt SECTION. = " . - TANGENTIAL SECTION. .Sudliche Rothe Eiche, fr. Chene rouge du sui Sp. Roble rojo meridional 294. QUERCUS TEXANA BUCK Southern Red Oak* Schneck's Oak. TRANSVERSE SECTION OIAL SECTION TANGENTIAL SECTION Sudliche Rothe Eiche. Fr. Chene rouge du su4 SP- Roble rojo meridional. 295, QUERCUS LAURIFOLIA MICHX, Laurel Oak* TRANSVERSE SECTION RADIAL SECTION. TANOITNTlAk SECTION. Lorbeer-Eiche, dene de laurier, Sp. Roble de laurel. &. Hough, 8, A., Lowvtf 295. QUEROUS LAURIFOLIA MICHX Laitrel Oak. TRANSVERSE SECTION, RADIAL SECTION ^^f^3IS_=- Lorbeer-Etche* rr.. Chene de laurier, $P. Roble de laurel. ly Ronn«yn 8 H»ugt>, S A , L ow\ 296. SALIX LONGIPES ANDERS Long-stalk Willow. Ward Willow. TRANSVERSE SECTION RADIAL SECTION TANGENTIAL SECTION Langstengel-Weide. FT. Saule a tigc long, sp. Sauce de tallo largo* •.tie byKomeyn B. Hough, B. A, 296, SALIX LONQIPES ANDERS Long-stalk Willow* Ward Willow. TRANSVERSE SECTION RADIAL SECTION Langstengel-Weide* FT. Saule a tige long, SP. Sauce de tallo largo. Published and sec-Hon 297. SALIX MISSOURIENSIS MUEHL, Missouri Willow* TRANSVERSE SECTION RADIAL SECTION. TANCENTIAL SECTION. Missouri Weide, Saule de Missouri* Sauce de Missouri* Publi*h*a and S-etiona mad* by Romvyn B. Houah. 8, A.. Lowville. N Y.. U. S. A. 297. SALIX MISSOURIENSIS MUEHL, Missouri Willow. TRANSVERSE SECTION RADIAL SECTION. / TANGENTIAL SECTION. Missouri Weide* FT. Saule de Missouri Sauce de Missouri. 298. PINUS PUNGENS MICHX. Table-mountain Pine. TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Tafelberg-Fichte* FT* Pin de plateau* 8p. Pino de Mesa, wl mna 8«ctton* matt* bv Rom«vn E. Houoh. 8. A Lowvtll*. N. V.. U. S. A. 298. PINUS PUNGENS MICHX Table-mountain Pine* TRANSVERSE SECTION RADIAL SECTION. TANGENTIAL SECTION. Tafelberg-Fichte. FT. Pin de plateau. &p. Pino de Mesa. 299. TSUGA CAROLINIANA ENGELM Carolina Hamlock, TRANSVERSE SECTION. RADIAL SECTION TANGENTIAL SECTION. Carolina Tanne, FT. Pruche de Caroline* SP. Abeto de Carolina, 299. TSUGA CAROLINIANA ENGELM Carolina Hamlock. TRANSVERSE SECTION RADIAL SECTION. I TANGENTIAL SEC Carolina Tanne* **>. Pruche de Caroli SP, Abeto de Carolina. id* by Rorneyn B. Houg) 300. ABIES FRASERI LINDL Eraser Fir. \ TRANSVERSE SECTION RADIAL SECTION TANGENTIAL SECTION. Oer. Eraser Tanne. Tanne. fr. Sapin de Fraser, Sp. Abeto de Fraser, 300. ABIES FRASERI LINDL Fraser £ TRANSVERSE SECTION, RADIAL SECTION. TANGENTIAL SECTION, Oer. Frascr Tanne, Fr. Sapin de Eraser, Sp. Abcto de Fraser, ^utoll»h«d and Section* m*«« t>y Romvy T Hough. R.B* A__^V-M£ x% r» v> -«i ., ^ ',; * rdi M1755S5 ^^ 810, THE * UNIVERSITY OF CALIFORNIA LIBRARY PLATES 276-300 Collate before charging before discharging. and "I ^_^_ . fr ^ >^ y > ' T-f ;' -;l^ ' ^ >A