,-.-,. • '• THE LIBRARY OF THE UNIVERSITY OF CALIFORNIA Biology BEQUEST OF Alice R. Hilgard /y^ x (!ZJe^4**>ts&?& x^ / S- Pv *<- FLORA OF THE SOUTHERN UNITED STATES FLORA OP THE SOUTHERN UNITED STATES CONTAINING ABRIDGED DESCRIPTIONS OF THE FLOWERING PLANTS AND FERNS OP TENNESSEE, NORTH AND SOUTH CAROLINA, GEORGIA, ALABAMA, MISSISSIPPI, AND FLORIDA : ARRANGED ACCORDING TO THE NATURAL SYSTEM. A. W. CHAPMAN, M.D THE FERNS BY DANIEL C. EATON. NEW YORK: IVISON, PHINNEY, & CO., 48 & 50 WALKER STREET. 1860. Entered according to Act of Congress, in the year 1860, by A. W. CHAPMAN in the Clerk's Office of the District Court for the Northern District of Florida. GIFT University Press, Cambridge : Electrotyped and^Printed by Welch, Bigelow, & Co. BIOLOGY TO THE REV. MOSES A. CURTIS, D. D., OF NORTH CAROLINA, THIS VOLUME IS DEDICATED, BY HIS OBLIGED FRIEND, THE AUTHOR. PREFACE. THE object of this work is to present to students and to prac- tical botanists a systematic arrangement of the Phaenogamous and higher Cryptogamous Plants of the Southern portion of the United States. My original design did not contemplate so wide a field ; but was limited to an enumeration of the plants of the Carolinas, Georgia, and Florida, — to which, chiefly, my attention has been directed during the last thirty years. But, influenced by the solicitations of friends, and by the apparent need of a more general work, I have extended my plan, so as to embrace all the States south of Virginia and Kentucky, and east of the Mississippi River. The plan of the work is nearly the same as that adopted by PROFESSOR GRAY, in his excellent Manual of the Botany of the Northern United States. For the benefit of those students who may not have a more per- fect treatise at hand, I have prefixed to the Flora a very concise Sketch of the Elements of Botany, and also a Glossary of Botan- ical Terms. But I would earnestly recommend, to those who may use this work, the admirable Botanical Series* of the author * I. How Plants Grow: Botany for Young People. Illustrated by 500 wood engravings. 75 cents. II. Lessons in Botany and Vegetable Physiology. 360 illustrations drawn from nature. $ 1.00. IE. Structural and Systematic Botany. 1,300 cuts. 82.00. These works are published by Ivison, Phinney, & Co., of New York. VI PREFACE. above named; especially, his First Lessons in Botany, in which the general principles of Botany and Vegetable Physiology are fully explained. I acknowledge with gratitude the kindness of those friends, and correspondents who have, in various ways, aided me in my labors. To the REV. MOSES A. CURTIS, of North Carolina, to whom I am permitted to dedicate this volume, especial acknowledgments are due, for valuable information derived from a long and instruc- tive correspondence, for the generous contribution of new and rare specimens, and for important assistance rendered me in every part of my work. To PROFESSOR ASA GRAY, of Harvard University, I am under peculiar obligations; not only for the privilege of consulting his valuable . library, and his extensive herbarium, which contained many plants previously unknown to me, but also for the benefit of his advice in all matters of doubt and difficulty, and for innumer- able acts of kindness, bestowed in every way. To MR. DANIEL C. EATON, of New Haven, who is making the FERNS a subject of special study, I am greatly indebted for this first and very careful elaboration of the Southern plants of that interesting family. I embrace the opportunity to say to those who have aided me hitherto, that, if they will continue to favor me with their discov- eries, I indulge the hope of preparing a future edition of this work, which shall be more worthy of their approbation. APALACHICOLA, FLORIDA, Mjpch. 26, 1860. CONTENTS. PAOB INTRODUCTION . • • . • ... . ,• ix SKETCH OF THE ELEMENTS OP BOTANY . . .' . ix GLOSSARY OF BOTANICAL TERMS . . . . . xviii ABBREVIATIONS OF THE NAMES OF AUTHORS . . . xxv SIGNS USED IN THIS WORK . V . . . xxvi DIRECTIONS TO THE STUDENT ... . . xxvii ARTIFICIAL ANALYSIS OF THE NATURAL ORDERS . . xxlx FLORA. — PH^ENOGAMOUS OR FLOWERING PLANTS . . . 1 CRYPTOGAMOUS OR FLOWERLESS PLANTS . . 585 INDEX ••«-.. 608 < INTKODUCTION. I. SKETCH OF THE ELEMENTS OF BOTANY. 1. Vegetable Tissue. 1. PLANTS are primarily composed of minute membranous vesicles or cells, which are endowed with the power of reproduction, and through which, al- though closed and destitute of visible pores or openings, the juices of the plant are readily transmitted. 2. Variously modified, these cells form the Elementary Tissues ; viz. Cellular Tissue or Parenchyma, Woody Tissue or Woody Fibre, and Vascular Tissue or Vessels and Ducts, 3. Cellular Tissue, which exists in all plants, and of which those of the lower orders are wholly composed, consists of cells aggregated together, and cohering by their contiguous surfaces. 4. Woody Tissue is composed of slender and elongated cells, with firm and thickish walls, collected in threads or bundles. 6. Vascular Tissue is made up of larger cells, either in the form of continuous tubes, or forming such by the union of their extremities. In some of these, the walls are marked with dots, lines, or hands ; whila in others they are lined with spirally coiled fibres which are capable of being unrolled. The latter are called Spiral Vessels, and exist only in plants which bear proper flowers. 6. Of these tissues are formed the Organs of plants ; viz. Organs of Vegetation, consisting of the Root, Stem, and Leaves, and Organs of Reproduction, consisting of the Flower and Fruit. 2. The Root. 7. The Root, or Descending Axis, is that part of the plant which grows down- ward, commonly penetrating the soil, from the moisture of which it imbibes nourishment. It branches indefinitely and without order, but bears no other appendages. Its ultimate branches are called Rootlets. 8. Roots which descend immediately from the embryo are termed Primary Roots. They are called Tap-Roots, when they consist of one thick and fleshy piece ; fascicled or clustered, when of several fleshy branches springing from a common centre ; tuberous when the branches become greatly enlarged and filled with starchy matter ; and fibrous, when all the parts are slender and thread-like. X INTRODUCTION. 9. But roots under favorable circumstances are developed from other parts of the plant. These are called Secondary Roots. 10. Aerial Roots are those which spring from the stem or branches above ground. In some, as in many Endogenous Plants, they proceed from the lower joints of the stem ; in others, as the Mangroves and Fig-trees of South Florida, they descend from the branches, and at length, penetrating the soil, form new stems in all respects similar to that of the parent tree. The tendril-like roots of some climbing stems are also of this class. 11. Epiphytes or Air-Plants, of which the Tillandsia and Epidendrum are ex- amples, are those which are borne on the trunks or branches of trees, but draw their nourishment from the air. 12. Parasites, like Air-Plants, grow on other plants ; but their roots, pene- trating the substance of the supporting plant, feed upon its juices. Some, as the Mistletoe and Dodder, fix themselves upon the trunk or branches ; others, like the Beech-drop, upon the root. 3. The Stem. 13. The Stem, or Ascending Axis, is that part of the plant which grows up- ward into the air and light, bearing leaves and flowers. It exists, under various modifications, in all flowering plants ; but in those which are said to be stemless or acaulescent, it is very short, or concealed in the ground. 14. It consists of a succession of leaf-bearing points, or Nodes, separated by naked joints, or Internodes. The growing points, which are protected by reduced leaves in the form of scales, are called Buds. These are terminal, when they ter- minate the axis ; axillary, when they spring from the axil of the leave's ; that is, from the point where the upper surface of the leaf joins the stem ; and adventi- tious, when they are developed from any other part. 15. Simple stems grow by the development of the terminal bud alone ; branch- ing stems expand indefinitely from the axillary buds also. The ultimate divis- ions of the branches are called branchlets. 16. The jointed stem of Grasses and similar plants is a Culm. 17. The thick and simple stem of the Palmetto is a Caudex. 18. A Rhizoma, or RootstocJc, is a perennial stem, commonly creeping on the ground, or beneath its surface, developing annually a bud at the apex, while the older portion decays. 19. A Tuber is a subterranean branch, excessively thickened by the deposition of starchy matter, and furnished with minute scales, having concealed buds (eyes) in their axils. 20. A Corm is a solid globular subterranean stem, filled with starchy matter, with a bud at the apex and roots below. 21. A Bulb is a short subterranean stem, made up of the thickened bases of leaves, in the form of persistent scales. It is tunicated or coated, when the scales are large and wrapped one within the other ; and scaly, when these are small and imbricated. Small aerial bulbs, such as are borne in the axil of the leaves of the Tiger-Lily, and among the flowers of the Onion, are called Bulblets. 22. A Stolon is a branch which bends to the- earth, strikes root, and forms a new plant. ELEMENTS OF BOTANY. 23. A Runner is a thread-like prostrate branch, producing roots and a tuft of leaves at its extremity. 24. Spines, or Thorns, arc imperfectly developed, leafless branches, with hard tips. 25. Tendrils are the thread-like spirally coiled branches of weak and slender plants, by means of which they attach themselves to other and stronger objects for support. Leaf-stalks and parts of the inflorescence are occasionally convert- ed into tendrils. 26. Plants which die down to the ground at the close of the season, or after maturing seed, are called Herbs, or Herbaceous Plants. Those with woody stems, lasting from year to year, when of humble size, are called Shrubs, and when reaching an elevation of twenty feet or more, Trees. * » 4. Internal Structure of Stems. 27. The stems of Phaenogamous Plants are composed of cellular tissue, woody tissue, and vessels ; and upon the arrangement of the latter are founded the two divisions of Exogenous and Endogenous Plants. 28. Exogenous stems consist of a central column, called the Pith ; an external covering, called the Bark ; and a middle portion, called the Wood. 29. Their Pith is a mass of cellular tissue, enclosed in a thin sheath of spiral vessels, termed the Medullary Sheath. 30. Their "Wood is composed of one or more layers of woody and vascular tissue, traversed by thin plates of cellular tissue, called the medullary rays, and annually increased, in all perennial stems, by the addition of a new layer to the outside of that of the previous year. The new wood is called the Alburnum, or Sap-wood, and the older and harder portion, the Duramen, or Heart-wood. 31. The Bark, like the wood, is made up of layers. The inner bark, or Liber, is composed chiefly of woody fibre. Between it and the wood, in the growing season, is secreted a thin mucilage, called the Cambium, in which the new layers of wood and bark are developed. Surrounding the inner bark is the Green bark, consisting of cellular tissue filled with Chlorophyll, or the green matter of veg- etables. Covering the whole is a thin membrane of cellular tissue, called the Epidermis, or Cuticle. 32. Endogenous stems exhibit no distinction of pith, wood, and bark ; but are composed of threads or bundles of woody tissue, irregularly embedded in cellular tissue. They increase in diameter by the formation of new bundles, which are chiefly directed to the centre of the stem. 5. The Lea-res. 33. Leaves are expanded appendages of the stem, developed from axillary and terminal buds. They consist of loose cellular tissue, supported by a net- work of woody and vascular tissue, called veins or ribs, and protected by the epidermis. In them the fluids received from the root, and what they imbibe from the air, through minute openings in the epidermis, called stomata, are con- verted into the proper food of the plant. 34. In the bud, they are folded, plaited, or coiled in various ways. This is termed their Vernation. XU INTRODUCTION. 35. A complete leaf comprises the Blade, the Stalk, and a pair of Stipules ; but these three parts are not always present in one leaf. 36. The Blade, Limb, or Lamina, is the expanded part, and presents a great variety of forms. It is simple, when it consists of a single piece, however cut or divided ; and compound^ when of two or more distinct pieces (leaflets), which separate by a joint. 37. The Stalk, or Petiole, connects the blade with the stem. When it is wanting, the leaf is said to be sessile. The stalk of a leaflet is called a PetioMe. 38. The Stipules are appendages of various forms, placed one on each side at the base of the petiole. They are separate, or else united with the petiole, or with each other, when they occasionally form a sheath (Ochrea) around the stem above. The stipules of a leaflet are called Stipels. 39. The manner in which the veins are distributed through the leaf is called Venation. 40. There are two modes of venation ; viz. parallel-veined, or nerved, when several simple veins, or ribs, run parallel from the base of the blade to its apex ; and reticulated, or netted-veined, when the veins divide into numerous primary and secondary branches (veinlets}, which again unite to form a kind of network. 41. The latter mode embraces both the pinnately veined, or feather-veined leaf, where the petiole is continued through the middle of the blade, giving off at in- tervals lateral veins ; and the palmately veined or ribbed leaf, when it divides at the apex into three or more strong branches. 42. The manner in which leaves are divided corresponds with that of their venation. 43. A simple pinnately veined leaf becomes pinnatiftd, when the incisions (sinuses) extend about half-way to the midrib, or continuation of the petiole ; and pinnately divided, when they extend down to the midrib. A compound pin- nately veined leaf is, of course, pinnate, with the separate leaflets arranged on each side of the common petiole. When this is terminated by a leaflet, the leaf is said to be odd-pinnate, or unequally pinnate, and when it is wanting, abruptly pinnate. 44. So, also, the palmately veined leaf becomes palmately cleft or divided, when the incisions are directed toward the base of the blade. "When the divis- ions consist of separate leaflets, it becomes palmately compound. 45. Floral leaves, or those from the axils of which the flowers are developed, are called Bracts; and those which are borne on the flower-stalk, Bractlets. 6. The Flower. 46. A Flower consists of those parts, or organs, which are concerned in the production of seed. Like the leaf, of which its parts are a modification, it is developed from an axillary or terminal bud. 47. The manner in which the flowers are arranged on the stem or branches is termed the Inflorescence. 48. There are two modes of inflorescence ; viz. the indefinite, or centripetal, where the flowers all arise from axillary buds, the lowest or outermost expand- ing first, while the axis elongates indefinitely from the terminal bud ; and the definite^ or centrifugal, where the flowers arise from the terminal bud, first, of the main axis, and successively from that of the branches. ELEMENTS OP BOTANY. xiii 49. When the flowers arise from the axil of the ordinary leaves of the stem, they are said to be axillary ; but oftener, they are disposed in a more or less obvious cluster, each arising from the axil of a greatly reduced leaf, or Bract. 50. The stalk of a solitary flower, or of a cluster of flowers, is termed the Peduncle; or, when it proceeds from the root, a Scape; and that of each indi- vidual of a cluster is called a, Pedicel. The main axis of a cluster, or that portion of the common peduncle which bears the flowers, is called the Rachis. 51. The indefinite inflorescence includes the Spike, Ament, Spadix, Raceme, Corymb, Umbel, Head, and Panicle ; the definite, the Cyme and its modifications. 52. The Spike consists of a more or less elongated rachis, with the flowers sessile, or nearly so, in the axils of the bracts. 53. The Ament, or Catkin, is the scaly deciduous spike of the Pine and Willow. 54. The Spadix is a spike with the flowers borne on a thick and fleshy rachis. It is naked, as in the Golden-club, or enclosed in a hood, called the Spathe, as in the Indian Turnip. 55. The Raceme presents the elongated rachis of the spike, but the flowers are raised on pedicels. 56. The Corymb is a short raceme, with the lower pedicels elongated, so as to bring their flowers to the same level as the upper ones. 57. The Umbel is a modification of the raceme, but with the rachis so much contracted, that the pedicels (rays) apparently spring from a common centre. When the umbel is compound, the partial umbels are termed Umbellets. 58. A Head is an umbel with sessile flowers. The crowded bracts of this and the preceding are collectively termed the Involucre, and those of the umbellets, the Involucel. 59. When the pedicels of a raceme or corymb are transformed into branches, either simple or successively divided, the inflorescence becomes a Panicle. 60. When the further growth of the axis is arrested by a single terminal flower, and from the axils below branches are developed, each terminated by a flower, and bearing branches in the same manner, the inflorescence is said to be cymose or centrifugal. But it presents several peculiar forms, occasioned either by the imperfect development, or by the entire suppression of some of its parts. Some, as the true Cyme, are short and expanded ; others are elongated, like the spike or raceme. In all, the flowers expand successively from the summit, downward, or from the centre, outward. 61. The Flower consists, commonly, of one or more whorls of leaves, called the Floral Envelopes, — of which the outer one is termed the Calyx, and the inner one the Corolla, — an inner whorl of thread-like organs, called the Stamens, and one or more central organs, called the Pistils. These are inserted on the apex of the axis, which here takes the name of Torus, or Receptacle. 62. The Floral Envelopes are sometimes wanting ; but the stamens and pis- tils, being the fertilizing organs, are, in all perfect flowers, always present. 63. The Calyx is composed of leaves (Sepals), usually of a greenish color, which are distinct, or united by their margins. When the floral envelopes con- sist of a single whorl only, it is always a calyx. b Xiv INTRODUCTION. 64. The Corolla is usually of a thinner texture than the calyx, and variously colored. Its leaves (Petals), when of the same number as the sepals, always alternate with them. They are also often united by their contiguous margins, to form a monopetalous corolla, 65. When the calyx and corolla are so nearly alike as not to be readily dis- tinguished, they are collectively termed the Perianth. 66. A flower is complete when all its parts are present ; incomplete, when the floral envelopes, or a part of them, are wanting ; perfect, when the stamens and pistils are borne in the same flower ; imperfect, or diclinous, when they are borne in separate flowers ; regular, when the sepals or petals are of uniform shape and size ; and irregular, when they are unlike in shape or size. 67. Imperfect flowers are further distinguished into monoecious, when those fur- nished with stamens (staminate or sterile flowers) and those furnished with pistils (pistillate or fertile jftowers ) are borne on the same plant ; dioecious, when they are borne on separate plants ; and polygamous, when both perfect and imperfect flow- ers are borne on the same or different individuals. 68. The manner in which the parts of the floral envelopes are arranged with respect to each other in the bud is termed their ^Estivation. They are valvate, when their contiguous margins meet, without overlapping ; induplicate, when these project inwardly ; reduplicate, when they project outwardly ; imbricated, when the margins of one overlap the adjacent margins of the two next within ; convolute, or twisted, when one edge of each piece covers the margin of the one next before it, and the other edge is covered by the margin of the one next after it ; and plaited, when the parts are folded lengthwise. 7. The Stamens. 69. A Stamen consists of a sac, called the Anther, and, usually, a stalk, called the Filament, by which it is supported. 70. They are hypogynous, when they are inserted on the receptacle ; perigynous, when on the calyx ; epigynous, when on the ovary ; epipetalous, when on the co- rolla; and gynandrous, when they are united with the style. They are, also, often combined with each other, either into one set (monadelphous), or into two, three, or more sets (diadelphous, triadelphous, &c.). 71. The Anther is composed, commonly, of two united cells, which open in various ways, and discharge a yellow, fertilizing powder, called the Pollen. The part which connects the cells is the Connective. 72. It is erect, or innate, when fixed by its base to the apex of the filament ; adnate, when fixed to the filament by its whole length ; versatile, when fixed by the middle to the apex of the filaments on which it turns as on a pivot ; introrse, when it faces inwardly toward the pistils ; and extrorse, when it faces outwardly toward the petals. Occasionally, they are united into a tube (syngenesious). 73. Between the stamens and the pistils is often a fleshy expansion, called the Disk. 8. The Pistils. 74. The Pistils occupy the centre of the flower. They are inserted, singly or in a whorl, on the receptacle ; or, when this is elongated or enlarged, they cover its surface. 9 ELEMENTS OF BOTANY. XV 75. A Pistil consists of three parts, — the Ovary, the Style, and the Stigma. 76. The Ovary is the lower and hollow portion, containing the Ovules, or ru- diments of seeds. ' 77. The Style is an extension of the ovary, commonly of its apex, which sup- ports th$ stigma. 78. The Stigma is commonly the apex of the style, or, when this is wanting, of the ovary, denuded of the epidermis. 79. When the pistil is composed of a single piece, or carpel, it is simple; but, oftener, it is compound, consisting of two or more carpels, united by their margins, or by their sides, which then form partitions or dissepiments, that divide the pistil into as many cells as there are carpels. 80. The line next the axis, or which corresponds to the united margins of a folded leaf, is called the Ventral Suture ; and that which corresponds to the mid- rib, the Dorsal Suture. 81. The Ventral Suture bears the ovules; and the line of their attachment is called the Placenta. This is central or axile, when it occupies the centre of the pistil, and parietal, when it is borne on its walls. 82. The Ovule is connected with the placenta by a cord, called the Funiculus. It consists of a central body, called the Nucleus, enclosed in two sacs, each with an opening at the apex, called the Foramen. The outer sac is termed the Primine, and the inner one the Secundine. The point where these parts unite is called the Chalaza. 83. The Ovule is orthotropous when the chalaza is next the placenta, and the apex at the opposite extremity ; campylotropous, when it curves on itself, so as to bring the apex near the chalaza ; anatropous, when it is inverted on its cord, to which it adheres ; the true apex pointing to the placenta, while the chalaza, or true base, points in an opposite direction ; and amphitropous, when it is half in- verted on its cord, its axis running parallel with the placenta. The adhering portion of the cord in the last two cases is termed the Raphe. 9. The Fruit. 84. The Fruit is the ovary, with its contents, brought to maturity. But dur- ing this process it sometimes undergoes important changes, either by the obliter- ation or abortion of some of its cells, partitions, or ovules, or by the formation of false partitions, or by various changes effected in its walls, or in the parts which surround them. 85. In some, the walls, or Pericarp, remain closed ; in others, they open, or are dehiscent in various ways, oftener splitting regularly into separate pieces, called Valves. 86. Many terms are employed to designate the different kinds of fruit, but only the following are in general use. 87. A Follicle is a simple fruit, opening along the ventral suture only; as the fruit of the Milkweed. 88. A Legume is a simple- fruit; opening at both sutures ; as in the Pulse Fam- ily. When it is divided across into closed joints, it is a Lament. 8.9. A Capsule is a dry compound fruit, opening in various ways. When it opens at the dorsal sutures, or into the cells, the dehiscence is said to be loculicidal; XVI INTRODUCTION. and septicidal, when it opens at the ventral suture, or through the partitions. When it opens transversely, the upper portion falling off entire, like a lid, the dehiscence is circumscissile. 90. A Silique is a slender two-valved capsule, with two parietal placenta con- nected by a persistent false partition. A short and broad silique is a Silide. These are peculiar to the Mustard Family. 91. A Pepo is the fleshy indehiscent fruit of the Gourd Family, with the seeds often embedded in the pulpy placenta. 92. A Pome is the indehiscent fruit of the Apple or Quince tribe, where the cells are enclosed in the enlarged and fleshy tube of the calyx. 93. A Berry is an indehiscent fruit, with the seeds embedded in soft pulp. 94. A Drupe consists of one or more hard or bony cells, called the Puta- men, covered with a fleshy or pulpy coat, called the Sarcocarp ; as the Peach, Holly, &c. 95. An Acheniwn is a small, dry, one-seeded, indehiscent fruit, the walls of which do not adhere to the enclosed seed. When these are closely united, it becomes a Caryopsis; or when the walls are thin and bladder-like, and open irregularly, a Utricle. 96. A Nut is a dry, indehiscent fruit, with hard or bony walls ; as the Acorn and Hickory-nut. 97. A Samara is a dry, indehiscent fruit, with its walls expanded into a wing ; as that of the Maple and Elm. 98. The collective fruit of the Pine is called a Cone or Strobile. 10. The Seed. 99. The Seed is the matured ovule, and contains the Embryo, or the rudiment of a future plant. The outer coat, or Integument, is called the Testa. It varies greatly in texture, and is occasionally furnished with hairs, which either cover the entire seed, or form a tuft ( Coma) at one or both extremities. 100. The terms employed in describing the ovule are chiefly applicable to the seed. The foramen of the ovule, which is closed in the seed, becomes the M- cropyle, and is always opposite the radicle of the embryo. The scar left on the seed by the separation of the cord is the Hilum. It is sometimes enveloped in a false covering, originating, during its growth, from the cord or from the pla- centa. This is called the Aril 101. The Testa includes either the embryo alone, or an additional nutritive substance, called the Albumen. 102. The Embryo consists of the Radicle, the Plumule, and the Cotyledons. 103. The Kadicle is the first joint of the stem. In germination, it elongates at one end to form the root, and at the other, from a minute bud (Plumule), to form the stem. It is inferior when it points to the base of the pericarp, and su- perior when it points to its summit. 104. The Cotyledons are the seed-leaves. The embryo of the Exogenous Plants bears two of these, placed opposite (rarely three or more in a whorl), while that of Endogenous Plants bears only one. Hence the former are called dicotyledonous, and the latter monocotyledonous. 105. When the embryo is exposed to the combined influence of air, heat, and moisture, it develops into a growing plant. This is termed Germination. ELEMENTS OF BOTANY. XV11 106. The preceding considerations refer solely to »Phamogamous Plants, or those which bear flowers, consisting of stamens and pistils, and produce seeds, which contain an embryo, or a rudiment of a future plant. 107. But there are plants of a lower grade, which do not bear flowers furnished with ordinary stamens and pistils, nor seeds containing an embryo, but in place of seeds they produce minute powdery bodies, called Spores. These are termed 11. Cryptogamous or Flowerless Plants. 108. The stems of the higher orders of Cryptogamous Plants — and these only are embraced in this work — exhibit nearly the same anatomical structure as those of Phsenogamous Plants. But they grow only from the apex, without any perceptible increase of diameter, and therefore are termed Acrogens or Point- growers, 109. The different orders presenting no common type, the habit, the mode of inflorescence, and the process of fertilization, so far as it is known, being different in all of them, the characteristics of each are more conveniently explained in the body of the work, and need not be enumerated here. 13. Classification* 110. Classification consists in the arranging of plants possessing like structure, habits, £c., into groups, designating them by proper names, and defining them by appropriate characters. 111. An assemblage of individuals which are so essentially alike as to indicate their descent from a common parent, and which preserve their characteristics when propagated from seed, is termed a Species. But circumstances connected with the growth of an individual may produce some deviation from its ordinary state, and it then becomes a Variety. 112. When the pistil of one species is fertilized by the pollen of another allied species, the result is a Hybrid. 113. An assemblage of species agreeing with one another in structure and ap- pearance constitutes a Genus. In the same manner, although with fewer points of agreement, genera are collected into Orders, or Families, and these, in turn, into 114. But each of these may include members that agree in some important points, which are not common to the others. Of such are formed the intermedi- ate divisions of Subgenera, Suborders, and Subclasses. 115. There are two modes or systems of classification; the Artificial System of Linnaeus, and the Natural System of Jussieu. 116. In the Artificial System, the Classes and Orders are founded on the num- ber, position, and connection of the stamens and pistils, regardless of any other relationship. In the Natural System, every part of the plant is taken into consid- eration ; and the Orders embrace those genera which agree with each other in the greatest number of important particulars. The latter system is now in almost universal use, and is the one adopted in this work. GLOSSARY OF BOTANICAL TEEMS. *** The numbers annexed to the names, or their definition, refer to the paragraphs of the preceding Sketch ; but those preceded by " Flora, p." refer to the pages of the Flora. Abortive : not fully developed. Abruptly pinnate, 43. Accumbent: Flora, p. 24. Achenium, 95. Achlamydeous : without floral envelopes. Acrogens: Flora, p. 585. Acuminate : tapering into a slender point. Acute : pointed. Adherent : growing fast to another body. Adnate : same as Adherent. Adnate Anthers, 72. Aerial Roots, 10. ^Estivation, 68. Air-Plants, 11. Aggregate : crowded together. Albumen, 101. Alburnum, 30. Alternate : scattered ; one after another. Alveolate : deeply pitted. Ament, 53. Amentaceous : bearing aments. Amphitropous, 83. Anatropous, 83. Androgynous : containing both staminate and pistillate flowers. Angiospermae : Flora, p. 1. Annual : lasting only one year. Annular : disposed in, or forming, a ring or circle. Anterior: applied to that part of an axil- lary flower which is farthest removed from the main axis. Anther, 71. Apetalous : without petals. Apiculate : tipped with a short abrupt point. Appendage : something added to a part. Appressed : lying near to ; pressed against. Aquatic : growing in water. Arborescent: tree-like. Areolation : spaces between the leaf-veins. Aril, 100. Arilled: covered with an aril. Armed: furnished with thorns, prickles, &c. Articulated: divided into joints; connect- ed by a joint. Ascending: ) curving outward and up- Assurgent: } ward. Attenuated : gradually narrowed. Auriculate: eared; bearing small lateral lobes. Awl-shaped : narrow and sharp-pointed. Awn : a rigid bristle-like appendage. Awned : bearing an awn. Axil : the point where the upper surface of the leaf joins the stem. Axillary : borne in the axil. Axis : the central line of a body; the part around which others grow. Baccate : berry-like ; juicy. Barbed: bearing rigid points which are directed backward. Bark, 31. Basal : belonging to the base. Beaked : ending in a stout point. Bearded : bearing tufts or lines of hairs. Bell-shaped : expanding from a short and rounded base, into a spreading border. Berry, 93. Bidentate : two-toothed. Biennial : lasting two years. Bifid : two-cleft. Bifoliolate : bearing two leaflets. Biglandular : bearing two glands. Bilabiate : two-lipped. Bipinnate : twice pinnate. Biternate : twice ternate. Bladders : small sacs filled with air. Blade : the expanded portion of a leaf,&c. Boat-shaped: see Carinate. Brachiate : with pairs of opposite branches spreading at right angles. Bract, 45. Bracted: furnished with bracts. Bractlet, 45. Bristle : a rigid hair. Bristly: beset with, or like, bristles. Brush-shaped: divided at the apex into numerous hairs or filaments. Bud, 14. Bulb, 21. Bulbous: shaped like a bulb. Bulblet, 21. GLOSSARY. xix Caducous : falling away early. Csespilfcse : growing in a tuft. Callous: thickened. Calyx, 63. Cambium, 31. Campanulate : see Bell-shaped. Campylotropous, 83. Capillary : hair-like. Capsule, 89. Capsular: relating to, or with the char- acters of a capsule. Carinate : keeled ; bearing on the back a sharp longitudinal ridge. Cariopsis, 95. Carpel : a single pistil, or one of the parts 01 a compound pistil. Carpellary : pertaining to a carpel. Carpophore: Flora, p. 157. Cartilaginous : hard and tough. Caruncle : an appendage of the hilum. Caudate: tailed. Caudex, 17. Caulescent: furnished with a stem. Cauline : pertaining to the stem. Cell : one of the cavities of the fruit or of the anther, £c. Celled: divided into cells. Cellular Tissue, 3. Centrifugal Inflorescence, 48. Centripetal Inflorescence, 48. Chaff: thin scales or bracts. Chaffy : furnished with chaff, or of the texture of chaff. Chalaza, 82. Channelled : with a deep longitudinal furrow. Character : a phrase employed to distin- guish a genus, &c. from all others. Chartaceous : of the texture of paper. Chlorophyll : the green matter of leaves, &c. Ciliate: fringed with a row of hairs. Circinate : rolled inward at the apex. Circumscissile, 89. Cirrhose : bearing tendrils ; tendril-like. Clasping : enclosing by its base, as a leaf the stem. Clavate: club-shaped. Claw : the stalk of a petal. Clawed : raised on a claw. Climbing: clinging to other objects for support. Club-shaped : terete and gradually thick- ened upward. Clustered: crowded. Coated Bulb, 21. Cobwebby: bearing fine loose hairs. Cochleate: coiled like a snail-shell. Coherent: growing together. Column : the axis of a compound pistil ; the united stamens of the Mallow Fam- ily ; the united stamens and pistil of the Orchis Family. Commissure: Flora, p. 157. Comose : bearing a coma, 99. Compound: composed of similar simple parts, 36. Compressed : flattened. Cone : the scaly fruit of the Pine. Confluent: running together. Conglomerate: heaped together. Conical: cone-shaped. Connate: growing together at the bas(\ as opposite leaves around the stem. Connective, 71. Connivent: brought near together. Continuous: in one piece; not jointed. Contorted: twisted; bent. Contorted aestivation: see Convolute. Contracted : narrowed ; not spreading. Convolute, 68. Cordate: heart-shaped. Coriaceous : of the texture of leather. Corm, 20. Corneous : hard like horn. Corniculate : bearing a horn or spur. Corolla, 64. Corymb, 66. Corymbose : branched like a corymb ; arranged in corymbs. Costate : ribbed. Cotyledons, 104. Creeping : prostrate, and rooting. Crenate : having sharp notches on the edge separated by rounded teeth. Crenulate : slightly crenate. Crested : bearing an elevated ridge. Crown: an appendage of the corolla at the base of the limb. Crowned : bearing anything at the apex. Cruciform : shaped like a cross. Crustaceous : hard and brittle, like a shell. Cryptogamous Plants, 107. Cucullate: see Hooded. Culm, 16. Cuneate : wedge-shaped. Cup-shaped: shaped like a bowl or cup. Cuspidate : ending abruptly in a sharp point. Cuticle 31. Cylindrical: round and of nearly equal thickness. Cyme, 60. Cymose : arranged in a cyme. Decandrous: having ten stamens. Deciduous : falling off at, or before, the close of the season. Declining: leaning to one side. Decompound : several times divided. Decumbent: prostrate, but ascending at the summit. Decurrent: with the edges extending be- low the main point of attachment. Definite : few ; a number easily counted. Definite Inflorescence, 48. Deflexed : bent downward. Dehiscence : the manner in which closed Dehiscent : opening regularly. Deltoid : triangular. Dentate : having sharp notches on the edge separated by coarse and spreading teeth. Denticulate: slightly toothed. INTRODUCTION. Depressed: flattened horizontally. Descending: directed downward. Diadelphous : collected in two sets. Diandrous : having two stamens. Dichlamydeous : having both calyx and corolla. Dichotomous : forked. Diclinous, 66. Dicotyledonous : having two cotyledons. Didymous: twin. Didynamous : having four stamens, with two of them longer than the others. Diffuse: loosely spreading. Digitate : when the apex of the petiole bears five or more leaflets. Dimorphous : of two forms. Dioecious, 67. Discoid: Flora, p. 184. Disk, 73. Also the central part of the head of composite flowers. Dissected : divided into many lobes. Distichous : two-ranked ; placed on oppo- site sides of the axis. Distinct: separate. Divaricate : widely spreading. Divided : parted nearly to the base. Dorsal : pertaining to back or outside. Dorsal Suture, 80. Downy: bearing soft short hairs. Drupe, 94. Drupaceous : with the characters of a drupe. "Duramen, 30. Dwarf: below the common size. Eared: see Auriculate. Echinate : beset with prickles. Elliptical : in outline twice as long as wide, broadest in the middle, and rounded at each end. Elongated: unusually long; extended. Emarginate : notched at the apex. Embryo, 102. Emersed : raised out of water. Endocarp : the inner layer of the pericarp. Endogenous (stems), 32. Enneandrous : having nine stamens. Ensiform : sword-shaped. Entire : with margins not toothed or di- vided. Epigynous, 70. Epiphytes, 11. Equilateral : equal-sided. Equitant (leaves) : two-ranked, with their bases clasped one within the other, and their sides facing the horizon. Erose : with the margin irregularly scal- loped, as if gnawed. Evergreen : lasting through the winter. Exogenous, 28. Exserted : protruding out of the surround- ing parts. Exstipulate: without stipules. Extrorse Anthers, 72. Falcate : scythe-shaped. Family, 113. Fan-shaped : folded or plaited like a fan. Farinaceous : mealy. Fascicle > a cluster. Fascicled: collected in a cluster. Fastigiate : rising to the same level ; flat- Feather-veined, 41. Female (flowers) : bearing only pistils. Ferruginous : of the color of iron-rust. Fertile : bearing fruit. Fibre, 4. Fibrous Roots, 8. Fiddle-shaped : oblong in outline, and contracted in the middle. Filament, 69. Any thread-like part. Filamentose : bearing or composed of threads. Filiform: thread-like. Fimbriate : with the margin cut into a fringe. Fistulous : hollow. Fleshy : soft and juicy. Flexuous: zigzag; bent outward and in- ward. Floating: resting on the surface of the water. Floccose : bearing tufts of deciduous hairs. Flora : a systematic description of the plants of a country. Floral : belonging to the flowers. Floret : one of the flowers of a cluster. Flower, 61. Flowering Plants, 106. Flowerless Plants, 107. Foliaceous: leaf-like. Foliolate : bearing leaflets. Follicle, 87. Follicular : like a follicle. Forked : divided into two branches. Free: separate; disconnected. Fringed: see Ciliate. Frond : the leaf of a Fern. Fructification : the fruiting state. Fruit, 84. Frutescent: shrubby. Fugacious : continuing for a short time. Fulvous: tawny. Funiculus, 82. Funnel-shaped : gradually dilated upward from a tubular base. Furrowed : grooved lengthwise. Fusiform : spindle-shaped ; broadest in the middle, and tapering at each end. Geminate: by pairs. Geniculate : bent abruptly. Genus, 113. Germination, 105. Gibbous : puffed out. Glabrous : free from roughness, or hairs. Glands : small knobs or excrescences. Glandular: bearing glands. Glaucous : covered with a minute whitish powder. Glomerate : collected in a close cluster. GLOSSARY. xxi GlumaceoTis : glume-like, or bearing glumes. Glumes : the scale-like bracts, &c. of grasses and sedges. Granular: covered with grains. Gymnospermous Plants: Flora, p. 431. Gynandrous, 70. Habit: the general appearance of a plant. Habitat : the native situation of a plant. Hairs : hair-like appendages of the cuticle. Hairy: furnished with hairs. Hastate or Halberd-shaped : dilated at the base into two spreading lobes. Heart-shaped : ovate, with a sinus at the base. Heptandrous : having seven stamens. Herb, 26. Herbaceous, 26 ; of the color and texture of a leaf. Herbarium : a collection of dried plants. Hilum, 100. Hirsute : beset with coarse hairs. Hispid : beset with rigid hairs. Hoary: grayish- white. Homogeneous : uniform in substance. Hooded : rolled inward or arched. Horn : an appendage like a horn. Horny : of the texture of horn. Hyaline : thin and nearly transparent. Hybrid, 112. Hypogynous, 70. Imbricated, 68. Imperfect (flowers), 66. Incised: cut into notches or lobes. Included : enclosed ; opposed to Exserted. Incumbent: Flora, p. 24. Incurved: bending inward. Indefinite : numerous; not readily counted. Indefinite Inflorescence, 48. Indehiscent: not opening. Indigenous : native to a country. Induplicate : folded inward. Indusium: Flora, p. 586. Inferior: below, 103. Inflated: puffed out, as if distended with air. Inflexed: bent inward. Inflorescence, 47. Innate (anther), 72. Inserted on: used in the sense of growing from a part. Insertion : the mode of attachment. Internodes, 14. Interrupted : not continuous ; not jointed. Interruptedly pinnate : with smaller leaf- lets between the Larger ones. Intervals : Flora, p. IpY Introrse (anthers), 72.' Introduced : brought from another coun- try. Inverted : turned upside down. Involucel, 58. Involucre, 58. Involute : with the margins rolled inward. Irregular (flowers), 66. Jointed : separating across into pieces ; furnished with joints. Keel: a sharp longitudinal ridge on the ^ back of an organ ; Flora, p. 86. Keeled: see Carinate. Kidney-shaped : heart-shaped, but the width greater than the length. Labellum: the odd petal (lip) of the Or- chis Family. Labiate: divided into an upper and lower lobe or lip. Laciniate : divided into irregular lobes. Lamellate : formed of thin plates. Lamina: the blade of a leaf, &c. Lanceolate : lance-shaped. Lanuginous: woolly. Lateral: placed at, or pertaining to the side. Leaf, 33. Leathery: see Coriaceous. Legume, 88. Lenticular: like a double-convex lens. Liber, 31. Ligulate: strap-shaped. Ligula: Flora, p. 545. Limb : the expanded part of a leaf, &c. Linear : long and narrow, with parallel margins. Lip : see Labellum and Labiate. Lobe : one of the parts of a divided body. Loculicidal, 89. Lunate : crescent-shaped. Lyrate : pinnatifid, with the upper lobes enlarged. Marginal : borne on, or pertaining to, the edge or margin. Medullary Rays, 30. Medullary Sheath, 29. Membranous : of the texture of mem- brane. Mericarp : Flora, p. 157. Micropyle, 100. Midrib: the prolongation of the petiole through the limb of a leaf. Monadelphous, 70. Monandrous : bearing one stamen. Moniliform : bearing short joints ; like a string of beads. Monochlamydeous : bearing only one row of floral envelopes. Monocotyledonous, 104. Monoecious, 67. Monopetalous : with the petals united into one piece. Monosepalous : with the sepals united into one piece. Mucronate: tipped with an abrupt slen- der point. Muricate : beset with hard wart-like pouits. Naturalized : introduced, but propagat- ing freely by seed. XX11 INTRODUCTION. Necklace-shaped: see Moniliform. Nectary: any honey-bearing part. Nerved (leaves), 40. Netted-veined, 40. Neutral (flowers): without stamens and pistils. Nodding: turning outward or downward. Nodes, 14. Nodose : knotty. Nut, 96. • Nutlet: same as Achenium. Obcordate : inversely heart-shaped. Oblanceolate : inversely lance-snaped. Oblique : unequal-sided. Oblong: narrower than Elliptical, with nearly parallel margins. Obovate: egg-shaped, frith the narrow end downward. Obtuse: blunt; not pointed. Ochrea, 38. Octandrous : having eight stamens. One-sided : borne one side of the axis. Opaque: dull. Opposite : placed directly against each other, as leaves on the stem; placed before, as stamens before the petals. Orbicular: circular. Organs, 6. Orthotropous, 83. Oval: same as Elliptical. Ovary, 76. Ovate: egg-shaped. Ovoid : a solid with an oval outline. Ovule, 76. Palate : a prominence at the throat of some bilabiate flowers. Palea: Flora, p. 545. Palmate: hand-shaped; when the lobes or divisions spread from a common centre. Palmately-veined, 41. Panicle, 59. Papery : of the texture of paper. Papilionaceous (flower): Flora, p. 86. Papillose : studded with minute wart-like prominences. Pappus : the limb of the calyx of com- posite flowers. Parallel-veined, 40. Parasitical : supported and nourished by other plants. Parietal, 81. Parted : divided nearly to the base. Partial : pertaining to the parts of a com- pound organ. Pectinate : cut into fine parallel lobes. Pedate : nearly as palmate, but with the lateral lobes divided. Pedicel, 50. Pedicelled : raised on a pedicel. Peduncle, 50. Peduncled: raised on a peduncle. Peltate : fixed to the stalk at a point within the margins. Pendent: hanging, drooping. Pendulous : somewhat drooping. Penicillate: see Brush-shaped. Pentandrous : having five stamens. Pepo, 91. Perennial : lasting from year to year. Perfect Flowers, 66. Perfoliate : growing around the stem. Perianth, 65. Pericarp : the walls of the fruit. Perigynium : Flora, p. 532. Perigynous, 70. Persistent : remaining late, as opposed to deciduous. Personate : bearing a palate. Petal, 64. Petaloid : petal-like ; colored like a petal. Petiole : the stalk of a leaf. Petioled : borne on a petiole. Petiolule : the stalk of a leaflet. Petiolulate : raised on a petiolule. Phsenogamous Plants, 106. Pilose : beset with stiff straight hairs. Pinnse: the primaiy divisions of a pin- nately compoundleaf. Pinnate, 43. Pinnately divided, 43. Pinnules: the secondary divisions of a pinnately compound leaf. Pistil, 74. Pith, 29. Pitted : marked with fine indentations. Placenta, 81. Plaited, 68 ; folded lengthwise. Plumose : feathery. Plumule, 103. Pollen, 71. Pollinia: the pollen-masses of the Milk- weed. Polyandrous : bearing many stamens. Polypetalous and Polysepalous : applied to a corolla or calyx with separate petals or sepals. Polymorphous : of various forms. Pome, 92. Prickles : sharp and rigid appendages of the cuticle. Prickly: beset with prickles. Primine, 82. Prismatic : angular, with flat sides. Process : a prominence or projection. Procumbent : resting on the ground. Produced: prolonged. Proliferous: where a cluster of flowers arises out of another cluster. Prostrate: see Procumbent. Pubescence : hairiness in general. ' Pubescent: hairy or downy. Pulverulent : covered with fine powder. Punctate: dotted. Pungent : ending in an abrupt hard point. Pyramidal : pyramid-shaped. Pyriform : pear-shaped. Quinate : bearing five leaflets. Raceme, 55. Rachis, 60. GLOSSARY. xxiii Rays 57 > ^e marSmal flowers a head or cyme • the partial stalks of an umbel. Radiate 'or Radiant: bearing rays; di- vergino- from a centre. Radical :°near or belonging to the root. Radicle, 103. Raphe, 83. Receptacle. 61. Reclining: leaning or falling to one side. Renewed! : } bent graduaUv backward' Refracted: bent abruptly backward, as if broken. Regular: of uniform shape and size. Reniform: see Kidney-shaped. Repand: wavy. Resupinate : turned upside down. Reticulate : disposed in little spaces, like network. Revolute: rolled backward. Rhizoma, 18. Rhombic or Rhomboidal : diamond- shaped. Ribs, 33 ; longitudinal ridges. Ribbed: bearing ribs. Root, 7. Rootlet, 7. Rootstock, 18. Rostrate: beaked. Rotate: wheel-shaped; with a short tube and a spreading limb. Rudimentary : imperfectly developed. Rugose : uneven ; wrinkled. Ruminated (albumen) : divided into lobes. Runcinate : same as lyrate, but with the lobes directed backward. Runner, 23. Sagittate : arrow-shaped. Samara, 97. Scabrous: rough. Scales : reduced leaves, or any small and thin appendage. Scaly: beset with scales; of the texture of scales. Scape, 50. Scarious : very thin and colorless. Scurfy : covered with minute scales. Secund: one-sided. Seed, 99. Segment: one of the parts of a divided leaf, &c. Sepal, 63. Septicidal, 89. Serrate : with the margin cut into teeth like a saw. Serrulate : finely serrate. Sessile : not raised on a stalk. Setaceous : bristle-like. Sheath: the base of a leaf when it is wrapped round the stem. Sheathing : enclosing the stem like a sheath. Shield-shaped : see Peltate. Shrub, 26. Silicle and Silique, 90. Silky: clothed with fine appressed shin- ing hairs. Silvery: white and shining. Simple: of one piece. Sinuate : with the margins cut into rounded incisions (sinuses) which are separated by rounded lobes. Solitary : standing alone. Sorus : the fruit cluster of ferns. Spadix, 64. Spathe, 54. Spatulate : dilated into a broad and rounded summit, from a slender base. Species, 111. Specific : pertaining to a species. Spike, 52. Spikelet: a small spike, or a branch of a spike. Spindle-shaped: see Fusiform. Spine, 24. Spiny : armed with spines ; spine-iike. Spiral Vessels, 5. Sporangia: Flora, p. 585. Spores: Flora, p. 585. Spur: a hollow appendage of the calyx or the corolla. Spurred: furnished with a spur. Squarrose : covered with spreading scales. Stamen, 69. Staminate : bearing stamens. Standard: Flora, p. 86. Stellate or Stellar : radiating from a common centre. Stem, 13. Stemless, 13. Sterile: unfruitful; imperfect. Stigma, 78. Stigmatic : belonging to the stigma. Stipe: the stalk of an ovary or of a fern- leaf. ' Stipel 38. Stipellate: furnished with stipels. Stipule, 38. Stipulate : furnished with stipules. Stolon, 22. Stoloniferous : bearing stolons. Stomata, 33. Strap-shaped : long and flat, with par- allel margins. Striate : marked with fine furrows. Strigose : bristly with rigid appressed hairs. Strobile, 98. Style, 77. Subulate : awl-shaped. Sulcate: marked with deep furrows. Suspended: hanging. Suture, 80. Syngenesious, 72. System, 115. Tap-root, 8. Tendril, 25. Terete: cylindrical; round. Ternate : of three leaflets ; three in a whorl. xxiv INTRODUCTION. Testa : the covering of the seed. Tetramerous : in parts of four. Tetrandrous : having four stamens. Thorn, 24. Throat: the orifice of a tubular corolla, calyx, &c. Tomentose : clothed with a close velvety pubescence. Toothed: see Dentate. Top-shaped : like an inverted cone. Torose, or Torulose: knotted; knobby. Torus, 61. Tree, 26. Triandrous : having three stamens. Tribe : a subdivision of an order. Trichotomous : dividing into three branches. Trifoliolate : bearing three leaflets. Truncate : ending abruptly, as if cut off. Tube : the united part of a calyx or co- rolla. Tuber, 19. Tubercle : a wart-like appendage ; Flora, p. 604. Tubercled : bearing tubercles, or crowned with a tubercle. Tuberous : like a tuber. Tubular: shaped like a tube. Tumid: swelled; thickened. Tunicated Bulb, 21. Twin : in pairs ; a pair united. Twining : rising by coiling around a support. Umbel, 57. Umbelled: arranged in an umtel. Umbellet, 57. Unarmed : destitute of thorns, prickles,&c. Uncinate : hooked. Undulate : wavy. Unequally pinnate, 43. Unguiculate : clawed. Unifoliolate : bearing a single leaflet. Urceolate : urn-shaped ; pitcher-shaped. Utricle, 95. Utricular : formed like a utricle. Valve, 85. Valvate, 68 : opening by valves. Variety, 111. Vascular Tissue, 5. Vaulted : arched. Veins, 33. Veiny : furnished with reticulated veins. Veinlets : the ultimate branches of veins. Venation, 39. Ventral Suture, 80. Ventricose : inflated. Vernation, 34. Versatile, 72. Vertical : with the edges directed upward and downward, and the sides facing the horizon. Vessels, 2. Vexillum : Flora, p. 86. Villous : woolly. Virgate : wand-like ; long and slender. Viscid : clammy ; glutinous. Vittse : Flora, p. 157. Waxy : like beeswax. Wedge-shaped : broad at the summit, and tapering regularly to the base. Wheel-shaped: see Rotate. Whorl : a collection of parts arranged in a ring or circle. Whorled : disposed in a whorl. Wing : Flora, p. 86 ; any thin expansion. Winged : furnished with wings. Wood, 30. Woody : of the texture of wood. Woody Fibre or Woody Tissue, 4. Woolly : clothed with long and dense soft hairs. ABBREVIATIONS OF THE NAMES OF AUTHORS. Adans. = Adanson. Good. = Goodenough. Ait. Alton. Griseb. Grisebach. All. Allioni. Gronov. Gronovius. Andr. Andrews. Haw. Haworth. Am. Arnott. H. B. K. Humboldt, Bonpland, and Aubl Aublet. Hoff. Hoffmann. [Kunth. BaUw. Baldwin. Boole. Hooker. Bartr. Bartram. Houst. Houston. Beauv. Palisot de Beauvois. Huds. Hudson. Benth. Bentham. Jacq. Jacquin. Bigel Bigelow. Juss. Jussieu. Boerh. Boerhaave. L. or Linn. Linnaeus. Brongn. Brongniart. Lag. Lagasca. Buckl. Buckley. Lam. Lamark. Cass. Cassini. Lehm. Lehmann. Catesb. Catesby. VHerit. L'Heritier. Cav. Cavanilles. Lindl Lmdley. Chapm. Chapman. Marsh. Marshall. Chois. Choisy. Mart. Martius. Darl. Darlington. Mey. Meyer. DC. De Candolle. MlcTix. Michaux. A. DC. Alphonse de Candolle. Michx.f. Michaux the younger. Desf. Desfontaines. Mitt. Miller. Desv. Desveaux. Mcench. Moenchausen. Dew. Dewey. Muhl. Muhlenberg. Dili. Dillenius. Murr. Murray. Ehrh. Ehrhart. NecTc. Necker. Ell. EUiott. Nees. Nees von Esenbeck. Endl Endlicher. Nutt. Nuttall. Engelm. Engelmann. Panz. Panzer. Fisch. Fischer. Pers. Persoon. Forsl. Forster. Plum. Plumier. Gcert. Gsertner. Pair. Poire t. Gaud. Gaudin. Raf. Kafinesque. Ging. Gingins. R.Br. Robert Brown. Gmel Gmelin. R.$S. Koemer & Schultes. €• XXVI INTRODUCTION. Rich. Salisb. Schk. Schrad. Schreb. Schw. Scop. Shuttlw. Suttiv. Torr. Richard. Salisbury. Schkuhr. Schrader. Schreber. Schweinitz. Scopoli. Shuttleworth. Sullivant. Torrey. Tourn. Trin. Tuck. Vent. Wahl Wang. Walt. Wattr. Wendl. Willd. Tournefort. Trinius. Tuckerman. Ventenat. Wahlenberg. Wangenheim. Walter. Wallroth. Wendland. Willdenow. IV. SIGNS USED IN THIS WORK. (1) An annual plant. (D A biennial plant. 1|. A perennial plant. 0 The length in feet; as, " 2° long," two feet long. ' The length in inches; as, "2' long," two inches long. " The length in lines; as, " 2" long," two lines long. (*) Placed at the end of a specific character, denotes that the species is not well known. Two adjectives connected by a hyphen denote a form intermediate between the two; as, "ovate-lanceolate," between ovate and lanceolate. Two figures connected by a dash, as " stem 4°- 6° long," denote that the length of the stem varies from four to six feet. n. sp. ) indicate that the species, or genus, is new, or has not been previously n. gen. ) characterized. V. DIRECTIONS TO THE STUDENT. HAVING acquired a general knowledge of the principles of botany, and of the meaning of the peculiar terms employed in the science, the student proceeds to study or analyze plants, with a view to determine their names, and the place the} occupy in the system. His chief difficulty, at the outset, will be to ascertain to which one of the 164 natural orders or families contained in this work the plant he may have in hand belongs. Were he to attempt to compare it with the characters of each order successively, the task would be tedious and discouraging. To obviate this, and to enable him to refer any unknown plant directly to its proper place in the Flora, some guide, such as is supplied by the following An- alysis of the Natural Orders, will be necessary. One or two examples will best explain its use. Suppose we have in hand a flowering branch of the Linden-Tree or Bass- wood. Turning to the Analysis on page xxix., we compare it, first, with the SERIES of PELENOGAMOUS PLANTS, with which we find it to agree in having flowers. Then, dividing the branch across, we see if it is made up of pith, wood, and bark ; if the leaves are netted-veined ; and if the floral envelopes are in fours or fives. Exhibiting these peculiarities, it doubtless belongs to the CLASS OF DICOTYLEDONOUS PLANTS ; although, in consequence of the minuteness of the seed, we have not been able to ascertain the number of the cotyledons. We next see if the ovules are contained in an ovary. This being clearly the case, it comes under the SUBCLASS of ANGIOSPERMOUS PLANTS. The double floral envelopes, and the separate petals of the corolla, carry it to the POLYPET- ALOUS DIVISION. Our attention is next directed to the insertion of the stamens and petals, — whether on the calyx, or hypogynous. In our plant they are hypogynous. Then, if the stamens are more than twice as many as the petals. They are so in ours. Then, if the leaves are opposite or alternate. In ours they are alter- nate. Then, if the ovaries are more than one, or solitary and 1 -celled, or soli- tary and 2 - many-celled. In ours they are solitary and 5-celled; bringing it under the last alternative. Then, if the stamens are in any way connected XXV111 INTRODUCTION. with the petals, or free from them. la ours they are free. Lastly, whether they are united into a tube, or in clusters, or are all separate. In ours they are ere united in five clusters, and the sepals are deciduous. This brings our plant to the natural order, TILIACEJE, 59, — the number referring to the page of the Flora where the order is described. Turning to that page, and comparing our plant with the character of the order, we notice their agreement. We then proceed to find the name of the genus. This is readily done, in this instance, by comparing the plant with the two genera comprised in this order. With the first it will be found to agree in every particular, and therefore we need not carry it further. We find, then, the plant in question to be a species of the genus TILIA, so named by Tournefort, and commonly called Linden or Basswood. Again, suppose the plant under consideration to be the common Bear-Grass. Having flowers, it is, of course, Phcenogamous. But, cutting across the stem, we find, in the place of pith, wood, and bark, a white mass of cellular tissue, stud- ded with minute points, which are the ends of the divided threads of woody fibre ; the veins of the leaf run parallel from the base to the apex ; the floral envelopes are in two rows of three each ; and the embryo, if examined, will be found to have but one cotyledon. In these respects, our plant differs widely from the Class of Dicotyledonous Plants, and we therefore turn to its alterna- tive, the CLASS of MONOCOTYLEDONOUS PLANTS, on page xxxvii. of the Anal- ysis, which, we observe, includes plants possessing these characters. 'Our plant, having the floral envelopes double, and not glumaceous, falls under the second heading, marked with two stars ( *= •* ). Proceeding as in the former example, and carefully comparing the plant with the analysis that follows, we see, first, if the ovary is adherent with, or free from, the perianth. In ours it is free. Then, if the perianth is single, or double. In ours it is double. Then, if the calyx and corolla are alike or unlike. In ours they are alike. Then, if the leaves of the perianth are glume-like, or otherwise. In ours they are not glume-like. Then, if the leaves are netted-veined or par- allel-veined. In ours they are parallel-veined. Then, if the capsule is 1 -celled, or 3 - 6-celled. In ours it is 6-celled. Lastly, if the anthers are introrse or ex- trorse. In ours they are introrse. This brings us to the natural order LILIACE.E, described on page 480 of the Flora. It contains ten genera, belonging to three tribes, the characters of which are briefly given in the Synopsis. Our plant, by its capsular fruit, the separate divisions of the perianth, and leafy stem, comes under the third tribe, TULIPA- CEJE. Of the two sections, marked with a star ( * ), our plant belongs to the second ; having a Palm-like stem. No. 10, Yucca, alone remains ; and to it our plant must belong. Turning to page 485, where this genus is more fully described, we find it to embrace four species, divided into two sections based upon the character of the stem and capsule. The short stem (excluding the scape) and dry capsule of our plant belong to the former. It contains but one species, Y. filamentosa, L., which we therefore find to be the botanical name of the plant in question. VI. ARTIFICIAL ANALYSIS OF THE NATURAL ORDERS. SERIES I. PHJENOGAMOUS OR FLOWERING PLANTS. Plants furnished with flowers, consisting of stamens and pistils, and producing seeds which contain an embryo plant. CLASS I. DICOTYLEDONOUS OR EXOGENOUS PLANTS. Stem composed of bark and pith, with an interposed layer of woody fibre and vessels, and increasing in diameter, in all perennial stems, by the annual deposition of a new layer between the wood and bark. , Leaves netted-veined, commonly articulated with the stem. Floral en- velopes usually in fours or fives. Cotyledons two, rarely more. SUBCLAS* I. ANGIOSPERMOUS EXOGENOUS PLANTS. Ovules contained in an ovary, and fertilized by the action of the pollen, through the medium of a stigma. Cotyledons two. DIVISION I. POLYPETALOUS EXOGENOUS PLANTS. Floral envelopes double, consisting of both calyx and corolla ; the latter of separate petals. * Stamens and petals free from the calyx, hypogynous or nearly so. •t- Stamens more than twice as many as the petals. Leaves opposite, entire. Page Leaves dotted. Stamens separate. Stigma small. HYPERICACE^I, 38 Leaves dotless. Stamens united below. Stigma radiate-peltate. CLUSIAC1L3E, 42 Leaves alternate. Ovaries more than one, each 1-celled. Stems woody. Petals 6 or more, in two or more rows. Petals imbricated in the bud. Anthers 4-celled. Dioecious vines. MENISPERMACE.E, 15 Anthers 2-celled. Flowers perfect. MAGNOLIACE^, 12 Petals valvate in the bud. Fruit pulpy. Albumen ruminated. ANONACE^!, 14 Herbs. Ovaries embedded in the top of the large receptacle. NELUMBIACE.E, 18 Ovaries borne on the receptacle. Sepals and petals deciduous. RANUNCULACE^E, 2 Sepals and petals persistent. CABOMBACE^E, 18 XXX INTRODUCTION. Ovary solitary, 1-celled. Placenta central. Sepals 2, deciduous. Anthers introrse. PORTULACACE^E, 43 Sepals 5, persistent. Anthers extrorse. DROSERACE^, 38 Placentae parietal. Calyx persistent. Capsule 3-valved : placentae 3. CISTACE^E, 35 Calyx deciduous. Juice colored. Leaves simple, lohed. PAPAVERACEJE, 21 Juice watery. Placenta 1. Leaves 2 - 3-ternate. CIMICIFUGE^I, 2 Juice watery. Placentae 2. Leaves simple or trifoliolate. CAPPARIDACE^E, 31 Ovary solitary, 2 - many -celled. Stamens connected with the base of the petals. Stamens united in a column. Sepals valvate. MALVACEAE, 52 Stamens united in a ring. Sepals imbricated. CAMELLIACE^:, 60 . Stamens free from the petals. Stamens united into a tube. Sepals persistent. CLUSIACE^l, 42 Stamens united in clusters. Sepals deciduous. TILIACE^E, 59 Stamens separate. Ovary 5-celled. Leaves tubular. SARRACENIACE^E, 20 Ovary many-celled. Leaves flat. NYMPH fflACEJE, 19 •i- -t- Stamens twice as many as the petals. Ovaries more than one. Flowers dioecious. Fruit a drupe. Trees, with pinnate leaves. SIMARUBACE^, 67 Flowers perfect. Fruit dry, indehiscent, 1 - 3-seeded. Aquatic herbs. CABOMBACE.33, 18 Fruit a many-seeded follicle. Fleshy herbs. CRASSULACE.E, 149 Ovary solitary, 1-celled. Leaves alternate. Fruit a legume. Leaves stipulate. LEGUMINOS^, 86 Leaves opposite. Fruit a capsule, with parietal placentae. Leaves entire, dotted. HYPERICACELS:, 38 Fruit a capsule, with a free central placenta. Leaves dotless. CARYOPHYLLACE^;, 45 Fruit a drupe. Shrubs, with trifoliolate dotted leaves. BURSERACE2E, 67 Fruit a berry. Herbs, with two peltate lobed leaves. BERBERIDACE.E, 16 Ovary solitary, 2-celled. 9 Flowers irregular : stamens monadelphous. Capsule 2-seeded. POiYGALACE^I, 82 Flowers regular : stamens separate. Capsule long, many-seeded. TILIACE2E, 59 Ovary solitary, 3-celled. Shrubs, with alternate leaves. Flowers monoecious. Fruit 3-seeded, 3-valved. Stamens united. EUPHORBIACE^I, 399 Flowers perfect. Fruit 3-seeded, 3-winged, indehiscent. CYRILLACK3E, 272 Fruit many-seeded, 3-valved. ER1CACKE, 257 Ovary solitary, 4-celled. Stamens 8. Style single. Low fleshy root-parasites, with scale-like leaves. MONOTROPE^I, 258 A shrub, with alternate leaves and bractless flowers. CYRILLACE^E, 272 Styles 4. Flowers cymose. Capsule 4-lobed, spreading. CRASSULACE^l, 149 Ovary solitary, 5-celled. Stamens 10. Style single. Stamens monadelphous. Leaves alternate, pinnate. CEDRELACE^E, 62 Stamens separate. Leaves opposite, pinnate. ZYGOPHYLLACEJ3, 63 Stamens separate. Leaves alternate, simple. PYROLEJE, 258 Styles 5. Cells of the fruit separating into 1-seeded nutlets. GERANIACE^E, 6 Cells of the fruit united. Leaves trifoliolate. OXALIDACE^E, 6 Ovary solitary, 7-celled. Anthers opening by terminal pores. ERICACEAE, 257 Ovary solitary, 10- 12-celled. Leaves opposite, abruptly pinnate. ZYGOPHYLLACE.E, 63 +-4-4- Stamens exceeding the petals in number, but not twice as many. Ovary 1-celled. Petals 4 : stamens 6. Sepals 2. Flowers irregular. Embryo minute in fleshy albumen. FUMARIACE2E, 22 Sepals 4. Flowers regular. Embryo large. Albumen none. CAPPARIDACK&, 31 Ovary 2-celled. Petals 3. Stamens 8, monadelphous. Anthers 1-celled. POLYGALACEJE, 82 Petals*. Stamens 6. Fruit a silique or silicle. CRUCIFER^l, 23 ARTIFICIAL ANALYSIS OF THE NATURAL ORDERS. Ovary 3-cclled. Leaves opposite. , Petals 5. Stamens 9. Leaves simple, dotted. HYPERICACE2E, 38 Petals 4-5. Stamens 7. Leaves palmately 7-foliolate. SAPINDACEjiE 78 Ovary 3 - 4-celled. Leaves alternate. Petals 5-8. Stamens 10. Fruit indehiscent, 3 - 4-winged. CYRLLLACE2E, 272 •^ •*-•*- •*- Stamens (the fertile ones) as many as the petals. Ovaries more than one. Flowers monoecious. Stamens united into a 5-lobed disk. SCIIIZANDREyE, 12 Flowers dioecious. Anthers 4-celled. Leaves simple. MENISPERMACEJ5 15 Anthers 2-celled. Leaves pinnate, dotted. RUTACE.E, 66 Flowers perfect. Style terminal. Ovules pendulous. RANTJNCULACE^E, 2 Style lateral. Ovules erect. SURIANACE^E, 149 Ovary solitary, 1 -celled. Flowers irregular. Fruit a legume. Albumen none. LEGUMINOS^E, 86 Capsule 3-valved. Albumen fleshy. "VTOLACES!, 32 Flowers regular. Flowers monoecious ; the fertile ones apetalous. Fruit utricular. EUPHORBIACE2E, 399 Flowers perfect. Stamens opposite the petals. Anthers opening by uplifted valves. BERBERIDACE^E, 16 Anthers opening lengthwise. Stamens and petals 3. Stigmas many-parted. CISTACE^E, 35 Stamens and petals 5. Leaves a pair, opposite. Capsule 3-valved, few-seeded. PORTULACACE^, 43 Leaves alternate, numerous. Capsule 2-valved. BYTTNERIACE^E, 58 Leaves at the base of a naked stem. Fruit a utricle. PLUMBAGINACE^l, 278 Stamens alternate with the petals. Leaves opposite, dotted, exstipulate. Albumen none. KYPERICACE^E, 38 Leaves opposite or whorled, dotless, stipulate. Albumen present. ILLECEBRE2E, 45 Leaves alternate. Capsule 1-celled. Leaves compound. Fruit a legume. MIMOSE-ZE, 88 Leaves simple. Stamens with sterile ones between. PARNASSIACE^E, 37 Sterile stamens none. DROSERACE^E, 36 Ovary solitary, 2-celled. Trees or shrubs. Fruit a double samara. Leaves simple, opposite. ACERACE^I, 80 Fruit a single samara. Leaves trifoliolate, alternate. RUTACEJ3, 66 Fruit a berry. Leaves palmately 5-foliolate. VITACE^E, 70 Fruit a drupe. Flowers perfect, racemose. Stamens 5. CYRILLACE^I, 272 Flowers dioecious, clustered. Stamens 2. EMPETRACEJE, 410 Ovary solitary, 3-celled. Stamens united, the alternate ones sterile. GALACINE^!, 268 Ovaries 4-celled, aggregated into a head. Dioecious. BATIDACE^!, 411 Ovary 5-celled. Style single. Petals stalked. BYTTNERIACEJ3, 58 Ovary 5-celled, or falsely 10-celled. Styles 5. Petals sessile. LINAGES, 62 4- H- -i- •»- H- Stamens fewer than the petals. Stamens 2. Petals 4, cruciform. Fruit a silicic. CRUCIFER^, 23 Stamens 2 -3. Petals 5. Flowers regular. Leaves opposite. CARYOPHYLLACE&, 45 Stamens 4. Petals 5. Flowers irregular. Leaves alternate. KRAMERIACE.E, 86 * * Stamens and petals inserted on the calyx, or on a more or less perigynous disk. 4- Calyx not adherent to the ovary. •H- Stamens as many as the petals. Stamens monadelphous around the stalk of the ovary. PASSIFLORACEJE, 147 Stamens separate, opposite the petals. Calyx truncate. Ovules 2 in each cell. Woody vines. VTTACE^E, 70 Calyx valvate. Ovules single in the cells. Trees or shrubs. RHAMNACEJE, 72 XXX11 INTRODUCTION. Stamens separate, alternate with the petals. Herbs. Leaves alternate. Calyx deciduous. Capsule 1-celled. Leaves opposite. Calyx persistent. Capsule 2 - 4-celled. Trees or shrubs. Fruit a double samara. Leaves opposite. Styles 2. Fruit a drupe. Ovary 1-celled. Albumen none. Ovary 2 - 5-celled. Seeds with albumen. ) Fruit a capsule. Capsule fleshy. Seeds arilled. ) Capsule 3-celled, inflated. Leaves trifoliolate. Capsule 2-celled, 2-beaked. Leaves simple. TURNERACE^!, 146 LYTHRACE^E, 133 ACERACE^;, 80 ANACARDIACE^I, 68 CELASTRACE.E, 75 STAPIIYLEACE2E, 77 ESCALLONIE^, 151 •H- -H- Stamens more numerous than the Ovaries more than one. Leaves alternate, stipulate. Leaves alternate, exstipulate. Succulent herbs. Leaves opposite, exstipulate. Sepals and petals numerous. Ovary solitary, 1-celled. Fruit a drupe. Style arising from the base of the ovary. Style terminal. Ovules pendulous. Fruit a legume. Flowers mostly irregular. Ovary solitary, 2 - 5-celled. Style single. Leaves simple, opposite or whorled. Leaves compound, dotted. Petals valvate. Leaves compound, dotless. Petals imbricated. Styles 2. Leaves alternate. Fruit a capsule. Leaves opposite. Fruit a double samara. Styles 2-3, each 2 - 3-parted. Capsule 2 - 3-celled. Styles 3, entire. Petals clawed. Fruit a drupe. petals. ROSACES, 117 CRASSULACE^l, 149 CALYCANTHACE^, 129 CHRYSOBALANEJ3, 118 AMYGDALE.E, 118 LEGUMINOS^, 86 LYTHRACE^, 133 BURSERACE^!, 67 SAPINDACE^I, 78 SAXIFRAGACE.E, 151 ACERACE^E, 80 EUPHORBIACE^E, 399 MALPIGIIIACE^, 81 Herbs. Ovary 1-celled. •i- •<- Calyx adherent to the ovary. Capsule and 2-lobed calyx circumscissile. PORTULACACE^I, 43 Capsule 3-valved. Calyx 5-parted. Leaves rough. LOASACE.E, 146 Ovary 2 - 6-celled. Style single. Anthers opening by a terminal pore. Leaves ribbed. MELASTOMACE^I, 131 Anthers opening lengthwise. Leaves ribless. Styles or stigmas 2 or more. Flowers umbelled. Fruit dry, separating into 2 pieces. Fruit berry-like, of 2 - 5 nutlets. Flowers not umbelled. Flowers perfect. Fruit capsular. Leaves alternate. Flowers monoecious. Fruit nut-like. Leaves whorled. Shrubs or trees. Leaves opposite. Fruit dry, variously dehiscent, many-seeded. Fruit indehiscent, 1 - 2-seeded. Stipules between the petioles. Stipules none. Leaves dotted. Stamens numerous. Leaves dotless. Stamens 4. Ovary 2-celled. Leaves dotless. Stamens 10. Ovary 1-celled. Leaves alternate. Flowers umbelled. Leaves compound. Flowers not umbelled. Leaves stipulate. Fruit fleshy or baccate, indehiscent. Fruit dry, woody, 2-valved. Leaves exstipulate. Flowers dioecious. Drupe baccate. Sterile flowers apetalous. ONAGRACEJ3, 137 UMBELLIFER^I, 157 ARALIACE^I, 166 SAXIFRAGACEJ3, 151 HALORAGE^;, 137 HYDRANGEA, 151 RHIZOPHORACE^:, 135 MYRTACE^l, 130 CORNACE^:, 167 COMBRETACEJE, 136 ARALIACE.E, 166 POME^, 118 IIAMAMELACE^, 156 CORNACE.E, 167 ARTIFICIAL ANALYSIS OP THE NATURAL ORDERS. Flowers perfect. Ovary 3-celled. Fruit a 2-winged nut. » Ovary 2 - 5-celled. Fruit a 1 - 5-seeded berry. } STYRACACEJ3, 270 Ovary 1-celled, with two parietal placentae. GROSSULACE^!, 145 Ovary 1-celled, with numerous placentae. CACTACK&, 144 DIVISION II. MONOPETALOUS EXOGENOUS PLANTS. Floral envelopes double, consisting of both calyx and corolla ; the latter of more or less united petals. * Calyx free from the ovary. •»- Flowers regular. •H- Fertile stamens fewer than the lobes of the corolla. Fruit a 1-seeded fleshy drupe. Evergreen shrubs or trees. OLEACEJE, 368 Fruit separating into 2-4 nutlets. Ovary 4-lobed ; the style rising from between the lobes. LABIATE, 310 Ovary not lobed ; the style terminal. VERBENACE.E, 305 Fruit a 2-celled capsule. Capsule circumscissile. Leaves alternate, radical. PLANTAGINACEJ5, 277 Capsule 2-valved. Corolla-lobes imbricated in the bud. SCROPHULARIACE^, 287 Corolla-lobes twisted in the bud. ACANTHACK3E, 302 •H- ++ Fertile stamens as many as the lobes of the corolla and opposite them. Herbs. Capsule 1-celled, many-seeded. PRIMULACHS:, 279 Trees or shrubs, rarely herbs. Anthers introrse. ^Calyx plaited, glandular. Fruit a utricle. PLTTMBAGINACE^, 278 Calyx not plaited. Fruit a drupe. Embryo transverse. MYRSINACRffi, 276 Anthers extrorse. Ovary 1-celled. Flowers racemose. THEOPHRASTACE^E, 276 Ovary 3 - 8-celled. Flowers clustered. SAPOTACE^E, 274 «-» -H- -H. Fertile stamens as many as the lobes of the corolla and alternate with them. Ovaries 2, separate. Juice milky. Stamens united with the stigmas into a mass. ASCLEPIADACEJE, 361 Stamens separate and free from the stigma. APOCYNACE.32, 358 Juice not milky. Stems creeping. Utricle 1-seeded. DICHONDRILS:, 341 Ovary solitary. Fruit indehiscent. Leaves opposite. Ovary 2-celled. Drupe 1-seeded. Corolla-lobes long. OLEACEJE, 368 Ovary 4-celled. Drupe 4-seeded. Corolla-lobes short. VERBENACE^!, 305 Leaves alternate. Flowers dioecious. Fruit baccate, 4 - 9-seeded. AQUIFOLIACE^!, 268 Flowers perfect. Ovary 2-celled. Corolla plaited or valvate. SOLANACEJ5, 347 Ovary 4-celled. Corolla mostly imbricated in the bud. BORRAGINACEJE, 328 Fruit a capsule. Capsule circumscissile. Flowers on a scape. PLANTAGINACEJE, 27f Capsule dehiscent by valves. Ovary 1-celled. Leaves lobed, hairy or pubescent. HYDROPHYLLACE^, 333 Leaves entire, smooth. GENTIANACRS!, 352 Ovary 2 -5-celled. Stipules membranous or annular between the opposite leaves. LOGANIKffi, 173 INTRODUCTION. Stipules none. Capsule few-seeded. Stems twining. Leaves alternate. , CONVOLVULACE2E, 340 Stems twining. Leaves none. ) Stems not twining. Leaves opposite or alternate. POLEMONIACK&I, 837 Capsule many-seeded. Style single. Capsule 2-celled. Corolla plaited in the bud. SOLANACE^I, 347 Capsule 2-celled. Corolla imbricated in the bud. SCROPHULARIACE^E, 287 Capsule 5-celled. Stamens elongated. ERICACEAE, 257 Styles 2. Capsule 2-celled. HYDROLEACEJE, 336 ++ -H- -w- -H- Stamens more numerous than the lobes of the corolla. Leaves compound, stipulate. Fruit a legume. MIMOSE^!, 88 Leaves simple. Flowers dioecious. Ovary 8-celled. Fruit a berry. EBENACE^E, 273 Flowers perfect. Stamens numerous. Stamens united into a column. Anthers 1-celled. MALVACEAE, 52 Stamens united in a ring or in clusters at the base. CAMELLIACE^), 60 Flowers perfect. Stamens twice as many as the corolla-lobes. Corolla-lobes imbricated in the bud. Capsule many-seeded. ERICACEJ3, 257 Corolla-lobes valvate in the'bud. Drupel-seeded. OLACACILE, 61 •i- H- Floivers irregular. Stamens 6. Calyx of 2 sepals. Capsule 1-celled. FUMARIACEJE, 22 Stamens (the fertile ones) 2 or 4. Ovary 1-celled. Stamens 2. Corolla spurred. LENTIBULACE^!, 282 Stamens 4. Fruit 1-seeded, reflexed. PHRYME^E, 306 Stamens 4. Fruit many-seeded. Leaves scaly. OROBANCHACE^, 286 Ovary 2-celled. Albumen copious. Corolla imbricated in the bud. SCROPHULARIACE^, 287 Albumen none. Placenta with hooked appendages. Corolla twisted in the bud. ACANTHACE^, 302 Placenta not appendaged. Capsule large. BIGNONIACEJE, 284 Ovary 4-celled. Ovary 4-lobed ; the style rising from between the lobes. LABIATE, 310 Ovary not lobed. Style terminal. VERBENACE^E, 305 / ' * * Calyx more or less adherent to the ovary. Anthers united. Anthers contorted. Vines climbing by tendrils. CUCURBITACE.E, 148 Anthers straight. Flowers in a raceme. Fruit a many-seeded capsule. LOBELIACEJ3, 253 Flowers in a raceme. Fruit a 1 - 4-seeded drupe. RUBIACEJE, 172 Flowers in a head. Fruit a dry achenium. COMPOSITE, 184 Anthers separate. Leaves opposite or whorled. Leaves connected by stipules, or whorled. RUBIACE^, 172 Stipules none. Stamens as many as the lobes of the corolla. CAPRIFOLIACE^, 16 Stamens fewer than the lobes of the corolla, VALERIANACE^E, 183 Anthers separate. Leaves alternate. Herbs. Corolla-lobes valvate in the bud. Capsule opening at the sides. CAMPANTILACE^, 25 Corolla-lobes imbricated in the bud. Capsule valvate. PREMTJLACE^E, 279 Shrubs. Flowers irregular. Stigma within a ciliate cup. GOODENIACE^!, 255 Flowers regular. Anthers opening by a terminal chink. VACCINIE^l, 257 Flowers regular. Anthers opening lengthwise. STYRACACE.3E, 270 ARTIFICIAL ANALYSIS OP THE NATURAL ORDERS. XXXV DIVISION in. APETALOUS EXOGENOUS PLANTS. Floral envelopes single, consisting of a calyx only, or altogether wanting. * Amentaceous trees or shrubs. Flowers monoecious or dioecious. •i- Sterile flowers only in aments. Leaves simple, stipulate. Involucre scaly. Seed entire. CUPULIFERJE, 420 Leaves pinnate, exstipulate. Involucre none. Seed 4-lobed. JUGLA.NDACE.ffi, 418 Both the sterile and fertile flowers in aments. Aments globose. Calyx none. Fruit 2-beaked, 2-valved, many-seeded. Sterile aments spiked. Fruit nut-like, 1-seeded, hairy. Aments single. Aments oblong or linear. Ovary 1-celled. Drupe 1-seeded. Stipules none. Capsule 2-valved, many-seeded. Seed comose. Ovary 2-celled. Fruit dry, angled or winged. Fruit enclosed in the 'confluent berry-like calyx. * * Flowers not in aments, •>- Calyx and corolla none. HAMAMELACEJ2, 156 PLATANACE^E, 417 MYRICACE^!, 426 SALICACE.ffi, 429 BETULACE^l, 428 MORACKE, 414 SAURURACE^E, 397 Ovaries 3-4, united below. Flowers perfect, spiked. Ovary single. ~j Involucre none. Capsule 4-celled. Aquatic. CALLITRICHACEJE, 398 Involucre spathe-like. Styles 2. Leaves alternate, parted. PODOSTEMACE^E, 399 Involucre 8 - 12-parted. Style one. Leaves whorled, forked. CERATOPHYLLACE^E, 398 Involucre 4 - 5-toothed, cup-like, containing one fertile flower and several sterile ones, each reduced to a single stamen. EUPHORBIACRiE, 399 •i- -i- Calyx herbaceous or coroUa-like. Ovaries more than one. Stamens inserted on the calyx. Leaves stipulate. Stamens hypogynous. Stipules none. Embryo minute. Embryo and seeds large, curved. Ovary solitary. Calyx adherent to the ovary. Ovary 1-celled. Fruit a 2-valved, many-seeded capsule. Fruit indehiscent, 1-seeded. Anthers (and stigma) sessile. Tree parasites. Anthers on filaments. Drupe berry-like. Stigma decurrent. Drupe dry. Albumen copious. Drupe dry. Albumen none. Ovary 6-celled, many-ovuled. Calyx tubular. Ovary 4-celled, many-ovuled. Stigma capitate. ) Ovary 3-celled, 3-ovuled. Stigmas 3. Leaves dissected. ) Ovary 2 - 3-celled. Capsule 2-valved. Leaves alternate. Fruit a berry. Leaves opposite. Calyx free from the ovary. Ovary 1-celled. Ovules and seeds numerous. Vines. Fruit berry-like. Stems erect. Capsule circumsciesile. ROSACES, 117 RANUNCULACE^;, 2 HENISPERMACILE, 15 SAXIFRAGACE^E, 151 LORANTHACE^E, 397 CORNACEJ5, 167 SANTALACE^E, 395 COMBRETACE^l, 136 ARISTOLOCHIACE^l, 371 ONAGRACE^!, 137 HAMAMELACE^!, 156 MYRTACEJE, 130 PASSIFLORACKE, 14T CELOSLELE, 379 XXXV111 INTRODUCTION. Herbs. Stamens 6. Leaves 3 in a whorl. Flower single. TRILLIACE^!, 475 Leaves alternate, sheathing. COMMELYNACEJE, 497 Stamens 3. Flowers perfect, solitary. Stem leafy. MAYACACE^!, 498 Flowers perfect, capitate. Scape leafless. XYRIDACE2E, 499 Stamens 3 or 4. Flowers monoecious, capitate. Scape leafless. ERIOCAULONACE^l, 602 * * * Flowers glumaceous, i. e. with scale-like bracts, in place of proper floral envelopes. Bracts single. Sheaths closed. Fruit an achenium. CYPERACEJS, 504. Bracts by pairs. Sheaths open. Fruit a caryopsis. GRAMINE^, 545 SERIES II. CRYPTOGAMOUS OR FLOWERLESS PLANTS. Plants destitute of proper flowers, and producing, in place of seeds, minute bodies (spores) which do not contain an embryo. CLASS III. ACROGENS. Plants with a distinct stem containing woody and vascular tissue, growing from the apex only. Fructification borne on the under side of a peltate scale. EQUISETACEJE, 585 Fructification borne on the back or margins of the leaves (fronds). FILICES, 585 Fructification borne in the axil of small leaves or bracts. LYCOPODIACE^, 600 Fructification borne at the base of the leaves. HYDROPTERIDES, 602 FLORA OF THE SOUTHERN UNITED STATES SERIES I. PILENOGAMOUS OR FLOWERING PLANTS. VEGETABLES furnished with flowers, consisting of stamens and pistils, and usually floral envelopes of some kind, and producing seeds which contain an embryo. CLASS I. DICOTYLEDONOUS OB EXOGENOUS PLANTS. Stem composed of bark and pith, which are separated by an interposed layer of woody fibre and vessels, and increas- ing in diameter, in all perennial stems, by the annual depo- sition of new layers between the wood and bark. Leaves reticulate-veined, commonly articulated with the stem. Floral envelopes usually in fours or fives. Cotyledons two, rarely more. SUBCLASS 1. ANGIOSPERM^. Ovules enclosed in an ovary, and fertilized by the action of the pollen, through the medium of a stigma. Cotyledons two. DIVISION I. POLYPETALOUS EXOGENOUS PLANTS. Floral envelopes double, consisting of both calyx and corolla ; the latter of separate petals. 1 2 RANUNCULACEJE. (CROWFOOT FAMILY.) ORDER I. RANUNCULACE^E. (CROWFOOT FAMILY.) Herbs or climbing shrubs, with a watery acrid juice. Leaves com- monly divided, their petioles dilated at the base, without stipules. Flowers regular or irregular. Sepals 3-15, distinct, often colored. Petals 5-15, deciduous, often wanting. Stamens hypogynous, indefi- nite. Ovaries distinct, numerous, rarely few or solitary, 1 -celled, 1- many-ovuled. Fruit dry or baccate. Embryo minute at the base of fleshy or horny albumen. Synopsis of the Genera. TEIBE I. C!LEMATIDE.ffi. Sepals valvate in the bud, colored. Petals stamen-like or none. Style elongated, persistent. Fruit an achenium. — Chiefly Tines. Leaves opposite. 1. ATRAGENE. Petals small and stamen-like. 2. CLEMATIS. Petals none. TRIBE II. ANEMONES. Sepals imbricated in the bud, colored. Petals none. Ovules solitary. Fruit an achenium. — Herbs. Floral leaves often whorled, forming an involucre. 3. ANEMONE. Involucre leaf-like and distant from the long-peduncled flowers. 4. HEPATICA. Involucre calyx-like and close to the flower. 5. THALICTRTJM. Flowers panicled and without an involucre (except in No. 1). Achenia ribbed or inflated. Leaves compound. 6. TRAUTVETTERIA. Flowers corymbed. Involucre none. Achenia 4-angled. Seed erect. Leaves simple, lobed. TRIBE III. RANUSfCUIjE-^E. Sepals imbricated in the bud, mostly herbaceous. Petals manifest. Ovules solitary. Fruit an achenium. — Herbs. Leaves alternate. 7. MYOSURUS. Sepals spurred at the base. Achenia spiked. Leaves radical, linear. 8. RANUNCULUS. Sepals spurless. Achenia capitate. Stems leafy. TSIBE IV. HELLEBORINEJE. Sepals imbricated in the bud, colored. Petals of various forms, or none. Fruit a 1 - many-seeded follicle. Leaves alternate. 9. CALTIIA. Petals none. Follicle many-seeded. Sepals yellow. Leaves simple. 10. ISOPYRUM. Petals none. Follicle few-seeded. Sepals white. Leaves compound. 11. AQUILEGIA. Sepals 5, regular. Petals 5, spur-shaped, hollow. Follicle many-seeded. Leaves compound. 12. DELPHINIUM. Sepals 5, irregular ; the outer one spurred. Petals 4, small ; two of them spurred, the others stalked. Follicle many -seeded. Leaves lobed. 13. ACONITUM. Sepals 5, irregular ; the outer one large, hooded, and enclosing two long- stalked, hooked petals ; the other petals stamen-like or wanting. Follicle many-seeded. Leaves lobed. 14. ZANTHORHIZA. Flowers regular. Sepals and petals 5; the latter 2-lobed. Follicle 1-2-seeded. Shrubby. Leaves compound. TRIBE V. CIMICIPTJGEJE. Sepals imbricated in the bud, colored. Petals small and flat, or none. Fruit a follicle or berry. — Herbs. Leaves alternate. 15. HYDRASTIS. Petals none. Ovaries numerous, forming a head of 1 - 2-seeded berries. Stems 1-flowered. Leaves simple, lobed. 16. ACT JE A. Petals 4-8, entire. Ovary solitary, forming a many-seeded berry. Flowers in short oblong racemes. Leaves compound. 17. CIMICIFUGA. Petals 3-5, 2-cleft. Ovaries 1-8, forming many-seeded follicles. Ra- cemes elongated. Leaves compound. RANUNCULACE^E. (CROWFOOT FAMILY.) 3 1. ATRAGENE, L. Sepals 4, colored, membranaceous, spreading, valvate in the bud, deciduous. Petals numerous, stamen-like. Stamens indefinite. Ovaries numerous, 1-ovuled. Achenia capitate, bearing the persistent styles in the form of long plumose-beard- ed tails. Seed suspended. — Shrubby vines, climbing by the petioles. Leaves opposite, compound, from scaly buds. Flowers solitary, showy. 1. A. Americana, Sims. Leaves in opposite pairs, ternate; leaflets stalked, ovate, acute, entire or toothed, sometimes slightly cordate ; peduncles opposite ; sepals oblong-ovate. — Mountains of North Carolina and northward. April -May. — Flowers 2' -3' in diameter, purple. 2. CLEMATIS, L. VIRGIN'S-BOWER. Petals none. Persistent styles naked or plumose. Otherwise as Atragcne. — Herbs or shrubby vines. Leaves simple or compound, opposite. Buds not scaly. Flowers solitary or panicled, often polygamous or dioecious. * Flowers solitary, nodding : calyx thick or leathery. •*- Stems erect, mostly simple, herbaceous. 1. C. OChroleuca, Ait. -Silky-pubescent; leaves ovate or roundish, en- tire, reticulate, nearly sessile, at length smooth above ; tails of the achenia (l£' long) plumose. — Upper districts of Georgia and northward. May- June. — Stems 1° high. Flowers yellowish, 1' long. 2. C. Baldwin!!, Torr. & Gray. Stems mostly simple, slender, slightly pubescent ; leaves oblong, varying to linear-lanceolate, entire, or with three often divided lobes; peduncles elongated ; tails of the achenia (2f-3' long) very slen- der, plumose. — South Florida. — Stems 1° - 1 £° high. Peduncles 8' - 10' long. Flowers purple, yellowish within, the sepals woolly on the margins. •»- •*- Stems climbing, herbaceous. 3. C. OVata, Pursh. Smooth ; stems erect or climbing ; leases broadly ovate, short-petioled, reticulate, glaucous beneath, the lowest sometimes com- pound or cordate ; sepals ovate, acuminate, pubescent on the margins ; tails of the achenia very long, plumose. — Mountains of Georgia, Carolina, and Ten- nessee.— Flowers purple1?, inclined. — Probably a form of the next. ( * ) 4. C. Viorna, L. Smoothish; leaves pinnate; leaflets 5 - 7, oval, or ob- long-ovate, mostly acute, somewhat membranaceous, entire or 2-3-lobed, the lowest pair often ternate ; calyx ovate ; sepals ovate, tapering into a short re- curved point, not margined, rather longer than the stamens ; tails of the achenia ( 1 £' long) plumose. — River-banks. May -August. — Flowers nodding. Sepals thick, reddish purple, 1' long. 5. C. crispa, L. Stem sparingly pubescent ; leaves pinnate ; leaflets 5-7 ovate, thin, 3-lobed or ternate ; those of the upper leaves entire, of the low- est lanceolate or linear ; calyx campanulate ; sepals lanceolate, acuminate, twice as long as the stamens, the margins broad and wavy ; tails of the achenia (!' long) rigid ; silky-pubescent. (C. Walteri,P«rsfi. C. cylindrica, Sims. C. line- 4 RANUNCULACE^E. (CROWFOOT FAMILY.) ariloba, DC., an early state, when all the leaflets are linear.) — Swamps and banks of rivers. May and June. — Stems 2° - 4° high, somewhat shrubby at the base. Flowers 1'- 1£' long, pale bluish-purple. 6. C. reticulata, Walt. Smooth; leaves pinnate; leaflets 7-9, oval, entire or 2 - 3-lobed, obtuse or mucronate, coriaceous, strongly reticulated ; calyx ovate ; sepals ovate-lanceolate, with spreading tips, not margined, longer than the stamens ; tails of the achenia (1^' long) slender, plumose. — Dry sandy soil, Florida to South Carolina. May- July. — Calyx downy, dull purple. * * Flowers panided : calyx thin, spreading, white: stems woody. 7. C. Virginiana, L. Smooth ; leaves ternate ; leaflets ovate or cordate- ovate, lobed or toothed ; panicle trichotomous, many-flowered, leafy ; flowers dioecious or polygamous ; sepals obovate, smoothish ; tails of the achenia long, plumose. — Swamps and meadows. July. — Leaflets 2' -3' long. 8. C. Catesbyana, Pursh. Pubescent ; leaves biternate ; leaflets ovate, mostly cordate, 3-toothed or lobed ; panicle leafy, many-flowered, the branches divaricate, opposite, 3 - 5-flowered ; flowers dioecious ; sepals oblong, hoary ; tails of the achenia plumose. — Dry sandy soil, near the coast, Florida to South Carolina, and westward. July. — Stem climbing high. Leaves and flowers smaller than the last. 9. C. holosericea, Pursh. Silky-pubescent ; leaves ternate ; leaflets oblong-lanceolate, entire ; flowers dioecious, in paniculate corymbs ; sepals lin- ear, longer than the stamens ; tails of the achenia very long, plumose. — South Carolina, Walter. — Flowers small, white. ( * ) 3. ANEMONE, L. WIND-FLOWER. Sepals 4 -20, colored, imbricated in the bud, deciduous. Petals none. Sta- mens indefinite. Filaments filiform. Ovaries numerous. Ovule solitary. Achenia capitate, compressed, pointed by the short, naked or woolly, straight or hooked, persistent style. Seed suspended. — Perennial herbs, with naked stems, bearing at the summit 2-3 opposite or whorled and divided leaves, which form an involucre remote from the flower. Radical leaves lobed or divided. 1. A. nemorosa, L. (Wooo ANEMONE.) Smooth or pubescent ; stem 1 -flowered ; leaves of the involucre 3, long-petioled, 3-parted, the divisions ovate- lanceolate, lobed and toothed, longer than the peduncle ; sepals 4-6, oval, white ; achenia 15-20, pointed by the hooked persistent style. — Open woods along the mountains and northward. March -April. — Stems 4' -6' high. Radical leaf solitary. 2. A. Caroliniana, Walt. (CAROLINA ANEMONE.) Stem slender, 1-flowered ; peduncle many times longer than the small, sessile, 3-leaved, 3-toothed involucre ; radical leaves 2 -3, long-petioled, ternate, deeply parted, lobed and toothed ; sepals 14-20, oblong, white ; achenia numerous in a cylin- drical-oblong head, woolly. — North Carolina and westward. March. — Stems 6' - 12' high. Flowers 1 ' in diameter. RANUNCULACE^E. (CROWFOOT FAMILY.) 5 3. A. Virginiana, L. (VIRGINIA ANEMONE.) Stem hairy or woolly, at length many-flowered ; peduncles elongated, the earliest one simple ; lateral ones several times forking, and bearing a 2-leavcd involucre and a single flower at each joint ; proper involucre 3-leaved, the leaves long-petioled, 3-parted, with ovate or oblong lobed and toothed divisions ; sepals 5, oval, greenish, acute ; achenia numerous, in an oblong head, woolly. — Open woods in the upper dis- tricts, and northward. July - September. — Plant 2° - 3° high. Flower 8"- 9" in diameter. Eadical leaves 3-4, similar to the involucre. 4. HEPATIC A, Dill. LIVER-LEAF. Flowers and fruit as Anemone. Involucre close to the flower, 3-leaved, resem- bling a calyx ; its leaves sessile, ovate, entire. — A low, perennial herb, with scape-like, 1-flowered stems, and 3-lobed, long-petioled, cordate, persistent, radi- cal leaves. 1. H. triloba, Chaix. Lobes of the leaves rounded, entire ; stems hairy; flowers purplish or white ; achenia oblong, hairy. — Shady woods, Florida and northward. February - March. — Stems 3' - 6' high. 5. THALICTRUM, Toura. MEADOW-RUE. Sepals 4 -10, imbricated in the bud, colored, spreading, deciduous. Petals none. Stamens numerous. Filaments filiform, clavate or flattened. Ovaries 3-15, 1-ovuled. Achenia sessile or stalked, furrowed or inflated, pointed by the sessile persistent stigma or short style. Seed suspended. — Perennial herbs. Leaves compound. * Flowers polygamous or dioecious : sepals shorter than the stamens : stir/ma elon- gated: achenia nearly sessile, ribbed: leaves alternate, decompound: involucre none : /lowers small, panicled. 1. T. dioicum, L. Stems erect; leaves long-petioled; leaflets thin, roundish, crenately 5 - 7-lobed, smooth ; flowers numerous ; sepals greenish ; stamens and stigma filiform ; achenia sessile, or (in var. STIPITATUM, Torr. — Leaves undivided. 4. R. alismssfolius, Geycr. Smooth ; stems ascending, rooting at the lower joints ; leaves lanceolate, acute, denticulate or entire ; petals longer than the calyx ; achenia in globose heads, tumid, slender-beaked. (R. Flammtila, Ell. &c.) — Muddy banks and ditches, chiefly in the upper districts. May- July. — Stems 1° - 2° long. Leaves 2' - 4' long. Flowers 3" - 5" wide. 5. R. pusillus, Poir. Smooth ; stems several, erect ; lowest leaves ovate or roundish, the others lanceolate or linear, entire or denticulate ; flowers mi- nute ; petals 1-5, as long as the calyx ; achenia in globular heads, barely pointed. (R. oblongifolius, Ell., a broader-leaved form.) — Muddy banks, Geor- gia to North Carolina and westward. March and April. — Stem 6' -12' high. Leaves 1' long. Flowers 2" wide. Stamens 5-9. •<- -i- Leaves (at least those of the stem) ternately lobed or divided. ++ Petals small, not exceeding the calyx. 6. R. abortivus, L. Smooth ; lowest leaves orbicular, cordate, undivided, crenate, those of the stem 3 - 5-parted, with wedge-shaped toothed divisions ; the uppermost sessile, 3-parted ; petals shorter than the calyx ; achenia in glo- bose heads, pointed with a very short recurved beak. — Low grounds. "March and April. — Stem 1° - 1 £° high. 8 RANUNCULACE^E. (CROWFOOT FAMILY.) 7. B. recurvatus, Poir. Hirsute ; leaves all pctioled, 3 - 5-lobed ; the lobes wedge-shaped, sharply toothed ; petals minute, shorter than the calyx. ; achenia in globose heads, pointed with a long and slender recurved beak. — Low grounds. April and May. — Stem 1° - 2° high. 8. B. sceleratus, L. Smooth ; leaves 3-parted, with the divisions wedge- shaped, obtusely lobed and toothed ; the uppermost sessile ; petals as long as the calyx ; achenia in oblong or cylindrical heads, pointless. — Ditches and swamps, Charleston (Elliott). Introduced from Europe. April and May. — Stems thick, 1° high. 9. B. Pennsylvanicus, L. Hirsute ; leaves temate ; leaflets long- stalked, 3-parted, the divisions lanceolate, acutely lobed and toothed ; petals shorter than the calyx ; achenia in oblong heads, pointed with a broad straight beak. — Low grounds in the upper districts. June. — Stem 2° - 3° high. Pe- tioles elongated, very hairy. •w- -w- Petals much larger than the calyx : achenia in globose heads. 10. B. Purshii, Richardson. Stem floating ; immersed leaves divided into very numerous capillary segments, cmersed ones reniform, 3 - 5-parted, the lobes variously divided ; sepals reflexed ; achenia pointed with a short straight beak. — In still water, North Carolina and northward. May -July. — Stems 2° -4° long. 11. B. repens, L. Smooth or hairy ; leaves ternate, or the earliest ones 3-lobed ; leaflets 3-lobed, toothed ; achenia strongly margined, pointed with the broad and straight or slightly-curved beak ; stems erect or prostrate, often bear- ing long runners. — Rich soil, chiefly in the upper districts. Var. y in the river swamps of the low country. March and April. Var. /S. hispidus. Hirsute; stem erect; leaves ample; peduncles long, with the hairs appressed. (R. hispidus, MX. R. Marilandicus and tomentosus, Poir: the latter a form with softer pubescence.) Var. y. nitidus. Smooth or nearly so; stem prostrate (l°-2°long); leaves and flowers smaller. (R. nitidus, MM.) 12. B. palmatUS, Ell. Hirsute with appressed hairs ; leaves small (!' wide), ternate or 3-parted, with the divisions ovate, sparingly toothed, those of the upper leaves lanceolate and entire ; achenia strongly margined, straight-beaked. (R. Carolinianus, DC.) — Swamps in the pine barrens, Middle Florida to South Carolina, rare. — April and May. Stems 1° high. 13. B. bulbosus, L. Hairy; stem erect (1°-1|° high) from a bulb-like base ; leaves ternate ; leaflets 3-parted, with toothed lobes ; those of the upper leaves lanceolate, entire ; flowers large (lf wide) ; achenia pointed with a short recurved beak. — Low grounds in the upper districts. Introduced. May. 14. B. acriS, L. Hairy; stem tall (2° -3°), branched above; leaves 3-parted, the divisions deeply cut into three wedge-shaped or lanceolate, acutely- toothed lobes ; the uppermost 3-parted, with linear entire lobes ; achenia pointed with a short recurved beak. — Low waste places, sparingly introduced from Europe. RANUNCULACE^E. (CROWFOOT FAMILY.) 9 9. CALTHA, L. MARSH MARIGOLD. Sepals 4-10, regular, flat, colored, imbricated in the bud, deciduous. Petals none. Stamens numerous; filaments filiform. Ovaries 5-15, many-ovuled. Stigma sessile. Follicles capitate or whorled, sessile, spreading, many-seeded. Perennial, smooth herbs, with cordate or reniform undivided leaves, and showy yellow flowers. 1. C. palustris, L. var. parnassifolia, Ton-. $• Gr. Stem 1-leaved, 1 -flowered; radical leaves long-petioled, broadly reniform, sharply toothed ; se- pals oblong. (C. ficarioides, Pursh.) — Cedar swamps, South Carolina (Pursh), Tennessee, and northward. 10. ISOPYBUM, L. Sepals 5 - 6, regular, ovate, colored, imbricated in the bud, deciduous. Petals 5 and minute, or none. Stamens numerous. Ovaries 2-20. Ovules few or many, in 1 - 2 rows. Style short, subulate. Follicles sessile, membranaceous. Seed horizontal. — Perennial, smooth herbs, with alternate compound leaves, and solitary white flowers. 1. I. biternatum, Torr. & Gr. Stem (6' -12' high) slender, sparingly branched ; radical leaves biternate, on long petioles ; stem-leaves ternate, nearly sessile ; leaflets ovate and obovate, obtusely 3-lobed ; petals none ; ovaries 1 - 5 ; follicle 2-seeded. (Enemion biternatum, Raf.) — Shady woods, West Florida and westward. April. — Root commonly bearing small tubers. The plant re- sembles Thalictrum anemonoides in general appearance. 11. AQUILEGIA, L. COLUMBINE. Sepals 5, regular, ovate, colored, imbricated in the bud, deciduous. Petals 5, prolonged downward into hollow spurs. Stamens indefinite. Filaments filiform, elongated. Ovaries 5, many-ovulcd. Follicles sessile, connivent, many-seeded, tipped with the elongated, filiform, persistent styles. Seeds horizontal. — Erect, perennial, branching, leafy herbs, with alternate ternatcly-compound leaves ; those of the root long-petioled. Flowers showy, nodding, solitary, or somewhat corymbed. 1. A. Canadensis, L. Stems 2° high, smooth or slightly pubescent ; radical leaves biternate, stem-leaves ternate, short-petioled ; leaflets roundish or obovate, crenately lobed ; flowers scarlet, yellow within ; stamens and styles exserted. — Rocky woods, West Florida and northward in the upper districts. April and May. 12. DELPHINIUM, L. LARKSPUR. Sepals 5, irregular, colored, imbricated in the bud, deciduous ; the outermost larger, and produced backward into a hollow spur ; the others flat. Petals 4, dissimilar ; the two upper with spurs which are received in the spur of the sepal, the two lower stalked ; sometimes (as in the annual Larkspur) all united. Stamens numerous, included ; filaments subulate. Ovaries 1-5, 1 -celled, many- 10 KANUNCULACF^E. (CROWFOOT FAMILY.) ovulcd. Style subulate. Follicles sessile, short-pointed. Seeds in two rows, horizontal. — Erect herbs, with alternate petioled and palmately divided leaves, and showy flowers in terminal racemes or panicles. 1. D. azureum, Michx. Stem mostly simple, downy; leaves 3 - 5-parted, the divisions cleft into 3 - 5-linear, toothed or entire, acute lobes ; racemes many- flowered ; pedicels and follicles erect ; spur slightly curved, twice as long as the calyx. (D. virescens, Nutt., with wider-lobed leaves, and larger greenish flow- ers.)— Rich soil, Florida and northward. May. U- — Stems l°-2° high. Leaves 2' - 3' wide. Sepals sky-blue, or sometimes whitish, tipped with brown. Lower petals 2-cleft, bearded. 2. D. tricorne, Michx. Stem simple, downy ; leaves as in No. 1 ; ra- ceme few-flowered ; pedicels and follicles diverging ; spur straight, as long as the calyx. — Mountains of North Carolina and northward. April and May. 1J. . — Root tuberous. Stems 1° high. Raceme 6 -12-flowered. Sepals blue. Lower petals' 2-cleft and bearded. 3. D. exaltatum, Ait. Stem tall, branching and hairy above; leaves large, the lower 3 - 5-parted, the divisions cleft into 2-3-lanceolate or oblong coarsely-toothed lobes, the upper 3-parted with sparingly toothed or entire lobes ; racemes many-flowered ; pedicels diverging ; follicles erect ; spur straight, rather longer than the calyx. — Mountains of North Carolina and northward. June- August. 1J.. — Stem 2° - 4° high. Leaves 4' -6' wide. Sepals blue. Lower petals 2-cleft and bearded, brownish. D. CONSOLIDA, L., the common annual Larkspur of the gardens, is becom- ing naturalized in some places. 13. ACONITUM, L. MONKSHOOD. WOLFSBANE. Sepals 5, irregular, colored, imbricated in the bud, deciduous ; the outermost large and helmet-shaped, the two lateral rounded, the lower smaller and oblong. Petals 2 or 5, the two upper long-stalked, produced backward into a short in- curved spur, the three lower minute or wanting. Stamens numerous ; filaments short, subulate. Ovaries 3-5, 1 -celled, many-ovuled. Style subulate. Follicles sessile, short pointed. Seed horizontal, rugose. — Erect or trailing, perennial herbs, with alternate, palmately divided leaves, and showy flowers in terminal racemes or panicles. 1. A. uncinatum, L. Stem smooth, vine-like, erect; leaves 3-5-cleft, with the lobes ovate-lanceolate, coarsely toothed ; raceme few-flowered ; flowers large, blue ; upper sepal helmet-shaped. — Shady banks of streams among the mountains and northward, rare. June and July. — Stem 2° - 6° long. Leaves rather rigid. 2. A. reclinatum, Gray. Stem smooth, reclining ; leaves deeply 3-7- clcft ; the lobes cuneate, acutely toothed ; racemes numerous, few - many-flow- ered, flowers white ; upper sepal elongated-conical, soon becoming horizontal. — High mountains of North Carolina. July and August. — Stems 4° - 8° long. Leaves thin. RANUNCULACE^E. (CROWFOOT FAMILY.) 11 14. ZANTHORHIZA, Marshall. Sepals 5, regular, lanceolate-ovate, colored, imbricated in the bud, deciduous. Petals 5, small, gland-like, 2-lobed, short-stalked. Stamens 5-10: filaments short. Ovaries 5-10, 1-celled, 2-ovuled. Style subulate, incurved, at length dorsal. Follicles sessile, gibbous. Seed solitary, pendulous. — A smooth trailing shrub with yellow roots. Leaves pinnate, long-petioled. Leaflets 3-5, ovate and lanceolate-ovate, incisely lobed and toothed from near the acute base. Flowers small, in slender compound racemes, appearing before (below) the leaves, dark purple. 1. Z. apiifolia, L'Her. — Shady banks, Florida, and along the mountains of Georgia and northward. March and April. — Stems 2° -3° high. 15. HYDBASTIS, L. Sepals 3, ovate, membranaceous, colored, imbricated in the bud, caducous. Petals none. Stamens numerous: filaments filiform. Ovaries 12-20, fleshy, 1-celled, 2-ovuled, ripening into 1-2-seeded, capitate, bright crimson berries. Style short. Stigma 2-lipped. — Stem erect from a thick, knotted rhizoma, simple, 1-flowered, leafy above. Leaves broadly cordate, palmately 5-7 cleft, the lobes toothed and sen-ate ; radical one solitary, long-petioled. Stem-leaves 2-3, the uppermost sessile under the stalked, greenish- white flower. 1. H. Canadensis, L. — Rich shaded soil along the mountains of Georgia and Carolina, and northward. April and May. — Stem 1° high. Leaves 4' -9' wide, hairy when young. 16. ACTJEA, L. BANEBEREY. Sepals 3 - 5, ovate, colored, imbricated in the bud, caducous. Petals 4 -10, spatulate, entire. Stamens numerous ; the filaments filiform. Ovary solitary, 1-celled, becoming a many-seeded berry in fruit. Stigma sessile, 2-lobcd. Seed horizontal. — Perennial herbs. Stems simple, bearing one or two twice or thrice ternately compound leaves, and a single oval or oblong raceme of small white flowers. 1. A. alba, Bigel. Smooth, or nearly so ; leaves large, 2 - 3-ternate ; leaf- lets thin, ovate or cordate-ovate, acutely toothed ; pedicels of the fruit very thick, red ; berry white. (A. pachypoda, Ell.) — Rocky woods along the mountains of South Carolina (Elliott), and northward. May. — Plant 2° high. 17. CIMICIPUGA, L. BUGBANE. Sepals 4-5, ovate or orbicular, colored, imbricated in the bud, caducous. Petals 1-8, small, stalked, 2-lobed. Stamens very numerous: filaments fili- form, elongated. Ovaries 1-8, 1-celled, becoming many-seeded follicles in fruit. — Perennial herbs, with large temately compound leaves, and white flowers in elongated slender racemes. * Ovary mostly single: stigma large, depressed: seeds horizontal, smooth. 1. C. racemosa, Ell. (BLACK SNAKEROOT.) Leaves thrice ternate; leaflets ovate or ovate-lanceolate, sharply serrate, the terminal ones mostly 12 MAGNOLIACE^S. (MAGNOLIA FAMILY.) 3-lobed ; racemes elongated, downy ; follicle broadly ovate, sessile. — Woods in the upper districts and northward. July. — Stem 3° - 8° high. Leaflets 2' long. Racemes 6' - 12' long. Flowers fetid. * * Ovaries 3 - 8 : stigma minute : seeds vertical, chaffy. 2. C. COrdifolia, Pursh. Leaves twice ternate ; leaflets rigid, ovate or cordate-ovate, 2 - 3-lobed, incised and serrate ; racemes panicled, elongated ; follicles oblong, sessile. — Mountains of North Carolina. September. — Stem 3° -4° high. (») 3. C. Americana, Michx. Leaves thrice ternate ; leaflets thin, ovate, incisely toothed and serrate, the terminal one 3-cleft or 3-parted ; racemes pani- cled, elongated; follicles obovate-oblong, slender-stalked. — Alleghany Moun- tains, from Georgia northward. August and Sept. — Stems 3° -4° high. ORDER 2. MAGNOLJACEJE. (MAGNOLIA FAMILY.) Aromatic trees or shrubs, with simple, alternate, petioled leaves, and regular, solitary, hypogynous flowers. Sepals and petals mostly simi- lar, imbricated in three or more rows in the bud. Stamens distinct or united. Anthers adnate. Ovaries numerous, imbricated or whorled, 1 - 2-ovuled. Fruit fleshy, baccate, or samara-like, distinct, or confluent in cone-like heads. Seed dry or baccate. Embryo minute, at the base of fleshy albumen. Synopsis* SUBORDER I. WINTEREJE. Flowers perfect. Stamens numerous, separate. Ovaries in a single whorl, 1-ovuled, becoming coriaceous follicles in fruit. — Erect shrubs. Leaves entire. Stipules none. 1. ILLICIUM. Leaves evergreen. Flowers nodding. SUBORDER II. SCHIZ ANDRE JE. Flowers monoecious. Stamens united. Ovaries im- bricated in a head, 2-ovuled, becoming scattered berries in fruit. — Climbing shrubs. Leaves deciduous, often toothed. Stipules none. 2. SCHIZANDRA. Stamens 5, united into a 5-lobed disk. SUBORDER III. MAGWOLiIEJE. Flowers perfect. Stamens numerous, separate. Ova- ries imbricated in a head, 2-ovuled. Fruit fleshy or somevrhat woody, in cone-like heads or spikes Chiefly trees. Leaves entire. Stipules large. 3. MAGNOLIA. Fruit fleshy, dehiscent, persistent on the receptacle. Anthers introrse. 4. LIRIODENDRON. Fruit woody, indehiscent, samara-like, deciduous. Anthers extrorse. 1. ILLICIUM, L. ANISE-TREE. Flowers perfect. Sepals 3 or 6. Petals 9-30, in rows of three, spreading. Stamens numerous, with short filaments. Anthers introrse. Ovaries 6 or more in a single whorl, sessile, 1-celled, 1-ovuled. Style subulate, recurved. Folli- cles coriaceous, spreading, at length 2-valved. Seed ascending. — Smooth anise- scented shrubs. Leaves evergreen, entire, mostly clustered at the summit of the branches, petioled. Stipules none. Peduncles in terminal clusters, 1 -flowered, nodding. MAGNOLIACE^E. (MAGNOLIA FAMILY.) 13 1. I. Ploridanum, Ellis. Leaves oblong-lanceolate, acuminate; petals 20-30, lanceolate and linear, widely spreading, dark purple. — Sandy swamps, Florida and westward. May. — Shrub 6° - 10° high. Leaves somewhat fleshy. Flowers flat, 1' in diameter. 2. I. parviflorum, Michx. Leaves lanceolate, acute ; petals 6-12, ovate or roundish, concave, yellow. — Southern districts of Georgia and East Florida. May and June. — Flowers smaller than in No. 1. 2. SCHIZANDRA, Michx. Flowers monoecious. Sepals 5-6, ovate, concave, greenish. Petals 5-6, obovate-oblong, crimson. Stamens 5 : filaments united, forming a circular, 5- lobed disk : anther-cells widely separated. Ovaries numerous, 1 -celled, 2-ovuled, imbricated in a head, in fruit forming 1 - 2-seeded berries, which are scattered on the greatly elongated filiform receptacle. — A climbing shrub ; with alternate, oblong, membranaccous, deciduous leaves, and small long-peduncled flowers, from axillary buds. Stipules none. 1. S. COCCinea, Michx. Leaves acuminate, long-petioled,3'-4'long, often somewhat toothed ; uppermost flowers mostly staminatc ; berries oval, red. — Shady woods, Florida to South Carolina and westward. May and June. — Stem climbing high. 3. MAGNOLIA, L. UMBRELLA-TREE. CUCUMBER-TREE. Flowers perfect. Sepals 3, caducous. Petals 6-9, concave, spreading, de- ciduous. Stamens very numerous : anthers introrse. Ovaries numerous, im- bricated, 1 -celled, 2-ovuled, forming in fruit a cone-like head of fleshy, 2-seeded, persistent follicles, opening on the back. Seeds berry-like, suspended by a slender cord of spiral vessels. — Aromatic trees or shrubs. Leaves alternate or clustered at the summit of the branches. Flowers large, solitary, terminal. Stipules large, adnate to the petiole, at length deciduous. * Leaves perennial. 1. M. grandiflora, L. (MAGNOLIA.) Leaves coriaceous, oblong, or ob- ovate, smooth and glossy above, rusty-pubescent beneath, flat or concave ; petals mostly 9, obovate, concave, clawed. — Light fertile soil in the middle and lower districts, South Carolina and westward. April and May. — A large tree. Leaves 6' -12' long. Flowers 6' -9' wide, white, changing to brown. Cone of fruit oval, 3' -4' long. 2. M. glauca, L. (SWEET BAY.) Leaves coriaceous, lanceolate and oblong, silky-pubescent, at length smooth above, glaucous beneath; petals 9, obovate, concave. — Swamps, Florida and northward. May and June. — A shrub or small tree. Leaves mostly deciduous northward, 4' - 6' long. Flowers 2' wide, white, very fragrant. Cone of fruit oval, 1'- 1^' long. * * Leaves deciduous, acute at the base. 3. M. Umbrella, Lam. Leaves clustered at the summit of the branches, obovate-oblong, acute, downy beneath, at length smooth ; petals 9, oblong-lan- 2 14 ANONACE^E. (CUSTARD-APPLE FAMILY.) ceolate, acute. (M. tripetala, Michx. ) — Rich s6il in the upper districts. May and June. — A small tree, with irregular branches. Leaves l°-l£° long, on short petioles. Flowers 4' - 6' wide, white. Cone of fruit oblong, 4' - 6' long, rose-colored. 4. M. acuminata, L. Leaves scattered, oval, acuminate, downy beneath; petals 6-9, oblong-ovate, obtuse. — Upper districts, in rich shaded soil. June and July. — A large tree. Leaves 6' - 9' long. Flowers 3' - 4' wide, dull yellow and greenish. Cone of fruit cylindrical, 2' - 3' long. * * * Leaves deciduous, auriculate or cordate at the base. 5. M. cor data, Michx. Leaves oval or roundish, slightly cordate, acute, white-downy beneath; petals 6-9, oblong, acute. — Upper districts in rich shaded soil. April and May. — A small tree. Leaves 4' - 6' long. Flowers 4' - 5' wide, yellow. Cone of fruit oblong, 3' long. 6. M. Praseri, Walt. Leaves clustered at the summit of the branches, spatulate-obovate, smooth on both surfaces, cordate and 2-eared at the base, on slender petioles ; petals oblong, obtuse, narrowed and unguiculate at the base. (M. auriculata, Lam. M. pyramidata, Bartr.) — Rich woods, Florida to Ten- nessee and westward. May and June. — A small tree. Leaves 8' -12' long. Flowers 6' wide, white and fragrant. 7. M. macrophylla, Michx. Leaves clustered at the summit of the branches, oblong-obovate, cordate or slightly eared at the base, glaucous be- neath ; petals oblong, obtuse, the inner row narrower. — Shady woods in light soil, Florida to Tennessee : rare. April and May. — A shrub or small tree. Leaves l^°-3° long. Flowers 8' -12' wide, white, fragrant. Cone of fruit ovate. 4. LIRIODENDHON, L. TULIP-TREE. WHITE POPLAR. Flowers perfect. Sepals 3, reflexed. Petals 6, erect. Stamens numerous: anthers extrorse. Ovaries numerous, imbricated, 1 -celled, 2-ovuled, forming in fruit a cone-like head of samaraform, indehiscent, 1 -2-seeded, deciduous carpels. •*- A large tree. Leaves angled, truncated. Stipules large, free from the petiole, deciduous. Flowers large, terminal. 1. L. Tulipifera, L. Leaves smooth, on slender petioles, mostly rounded at the base, somewhat 3-lobed ; the middle lobe appearing as if cut off, leaving a shallow notch; flowers bell-shaped, greenish-yellow, striped or tinged with orange. — Low grounds, Florida and northward. May - June. ORDER 3. ANONACEJS. (CUSTARD-APPLE FAMILY.) Trees or shrubs, with simple, alternate and entire, feather-veined leaves, and solitary, axillary, perfect, hypogynous flowers. Sepals 3. Petals 6, in two rows, deciduous, valvate in the bud. Stamens numerous. An- thers adnate, extrorse, on very short filaments. Ovaries few or many, MENISPERMACEjE. (MOONSEED FAMILY.) 15 distinct or cohering in a mass, baccate in fruit. Seed anatropous, large. Embryo minute, at the base of ruminated albumen. 1. ASIMINA, Aclans. TAPAW. CUSTARD- APPLE. Petals thick ; the three outer ones larger and spreading. Stamens very nu- merous, crowded on the globular receptacle. Ovaries 3- 15, sessile, 1 -celled, few-many-ovuled, baccate in fruit. Seeds horizontal, enclosed in a thin succu- lent aril. — Shrubs or small trees. Leaves deciduous. Flowers nodding. * Flowers appearing with or before the leaves. 1. A. triloba, Dunal. Leaves oblong-obovate, acuminate, covered with a rusty pubescence, as also the branches when young, at length glabrous ; outer petals round-ovate, dark purple, 3-4 tunes as long as the hairy sepals. (Uvaria triloba, Tarr.fr Gray.) — Banks of rivers, Florida and northward. March and April. — A shrub or small tree. Leaves 8' -12' long. Flowers !'-!£' wide. Fruit oblong, yellow and pulpy when mature, edible. 2. A. parviflora, Dunal. Leaves oblong-obovate, abruptly pointed, and like the branches rusty-pubescent, at length smooth ; outer petals oblong-ovate, twice as long as the calyx. (Uvaria parviflora, Tarr. fr Gray. ) — Dry sandy soil, Florida to North Carolina and westward. March and April. — Shrub 2° - 5° high. Leaves 4' - 6' long, thicker than those of the preceding. Flowers $ wide, rusty-pubescent, greenish-purple. Fruit oblong or pear-shaped, fleshy, few- 3. A. grandiflora, Dunal. Leaves oblong or oblong-obovate, obtuse, rigid, densely pubescent like the branches when young, becoming smoothish above ; outer petals large, round-obovate, many times longer than the sepals ; fruit small, obovate, 1 - few-seeded. (A. cuneata, Shuttl.) — Sandy pine barrens, Georgia and East Florida. March and April. — A small shrub. Leaves 2' -3' long. Outer petals two inches or more in length, yellowish-white. * * Flowers from the axils of present leaves. 4. A. pygmsea, Dunal. Smooth or nearly so throughout ; leaves coria- ceous, oblanceolate or oblong-wedge-shaped, obtuse ; outer petals oblong-obo- vate, many times longer than the sepals, pale-yellow, the inner ones purple within ; fruit cylindrical, pulpy, few-seeded. (A. secundiflora and probably A. reticulata, Shuttl , the latter a pubescent form, with smaller (!' - 2') oblong leaves and smaller flowers.) — Dry pine barrens, Florida and the lower districts of Georgia. May - July. — Shrub ^° - 3° high. Leaves 2' - 6' long, rarely 1 ' wide. Flowers |'-3' wide. ORDER 4. MENISPERMACE^E. (MOONSEED FAMILY.) Climbing shrubby vines, with alternate palmately veined and often lobed leaves, on slender petioles, and small polygamous or dioecious flow- ers, in axillary racemes or panicles. Stipules none. Sepals and petals mostly alike, in two or more rows, imbricated in the bud. Stamens 6 or 1C BERBERIDACEJE. (BARBERRY FAMILY.) more, hypogynous. Anthers 2-4-celled, opening longitudinally. Ova- ries 3 -8, drupaceous in fruit. Seed and embryo curved, the latter large, in thin albumen. Synopsis. 1. COCCULUS. Sepals, petals, and stamens 6- Anthers 4-celled. 2. MENISPERMUM. Sepals and petals 4-8. Stamens 12-24. Anthers 4-celled. 3. CALYCOCARPUM. Sepals 6. Petals none. Stamens 12. Anthers 2-celled. 1. COCCULUS, DC. Flowers dioecious or polygamous. Sepals and petals 6, each in two rows. Stamens 6 : anthers 4-celled, abortive in the fertile flower. Ovaries 3-6, 1-celled, 1-ovulcd. Stigma subulate, recurved. Drupe baccate, campy lotropous. Nut reniform, rugose. -Seed conformed to the cavity of the nut. Embryo semi- circular. — Leaves ovate or slightly cordate, entire or angularly 3-lobed. 1. C. Carolinus, DC. — Woods and thickets, Florida to North Carolina, and westward. June -August. — Pubescent. Stem twining, 10° -15° long. Leaves very acute, rather rigid. Kacemes of the fertile flowers simple, of the sterile compound. Flowers white. Drupe red. 2. MENISPERMUM, L. MOONSEED. Flowers dioecious. Sepals and petals 4-8. Stamens 12-24: anthers 4-celled. Ovaries 2-4. Stigma dilated, spreading. Otherwise as in Cocculus. — Leaves rounded, angular or lobed, slightly cordate and peltate at the base. Flowers white, panicled. .1. M. Canadense, L. — Banks of rivers, chiefly in the upper districts. July. — Stem twining. Sterile panicles elongated. Drupe black. 3. CALYCOCARPUM, Nutt. Flowers dioecious. Sepals 6. Petals none. Stamens 12 : anthers 2-celled ; those of the fertile flower abortive. Ovaries 3, 1-ovulcd. Stigma radiate, many- cleft. Drupe oval. Nut smooth, excavated on the inner face. Embryo curved, foliaceous. — Leaves round-cordate in outline, palmately 3 - 5-lobed. Flowers whitish, in compound racemes. 1. C. Lyoni, Nutt. (Menispermum Lyoni, Pursh.) — Banks of the Apa- lachicola River, Florida, to Tennessee. May and June. — Pubescent. Stem twining 20° -50° high. Leaves 4' - 7' wide, with acuminate lobes, the lateral lobes wavy or angled. Drupe 1' long, globose. ORDER 5. BERBERIDACEJE. (BARBERRY FAMILY.) Herbs or shrubs, with alternate, petiolate, mostly divided leaves, and perfect, regular hypogynous flowers. Sepals and petals in two or more rows of 2 - 4 each, imbricated in the bud, deciduous. Stamens opposite BERBERIDACEJE. (BARBERRY FAMILY.) 17 the petals when of the same number. Anthers 2-celled, opening by up- lifted valves (or lengthwise in Podophyllum). Fruit baccate or capsular. Embryo in the axis of fleshy albumen. Synopsis. * Anthers opening by uplifted valves. 1. BERBERIS. Stamens 6. Leaves bristly-serrate. Shrubs. 2. CAULOPHYLLUM. Stamens 6. Leaves compound. Herb. 3. DIPHYLLEIA. Stamens 6. Leaves peltate, deeply 2-cleft and lobed. Herb. 4. JEFFERSONIA. Stamens 8. Scape 1-flowered. Leaves 2-parted. Herb. * * Anthers opening longitudinally. 5. PODOPHYLLUM. Stamens 12 or more. Flower solitary in the fork of the two peltate, lobed leaves. 1. BERBERIS, L. BARBERRY. Sepals 6, orbicular. Petals 6, obovate, often biglandular near the base. Stamens 6, irritable. Stigma circular, depressed. Fruit a 1 - 9-seeded berry. Seeds erect. — Shrubs with yellow wood. Leaves bristly serrate, often reduced to branching spines. Flowers racemose, yellow. Berries acid. 1. B. Canadensis, Pursh. (AMERICAN BARBERRY.) Smooth, spiny; leaves obovate, bristly-serrate ; racemes nodding, 6 - 8- flowered ; petals notched ; berries oval, red. — Tipper districts of Georgia and northward. May and June. — .Shrub 2° -3° high, with dotted branches. 2. CAULOPHYLLUM, Michx. BLUE COHOSH. Sepals 6, ovate-oblong. Petals 6, thick and gland-like, shorter than the se- pals. Stamens 6. Style short. Stigma minute, unilateral. Ovary thin, early ruptured by the two growing seeds, withering. Seeds globose, drupe-like, stalked. Albumen horny. — A smooth perennial herb, with large ternately-compound leaves, and small yellowish-green flowers in a terminal raceme or panicle. 1. C. thalictroides, Michx. (Leontice thalictroides, L.) — Mountains of South Carolina (Elliott) and northward. April. — Plant l°-2° high, glau- cous when young. Radical leaf 3-ternate, on a long petiole ; those of the stem (mostly two) sessile, the upper one biternate. Leaflets obovate-wedge-shaped, 2 - 3-lobed. Panicle few-flowered. Seeds glaucous. 3. DIPHYLLEIA, Michx. Sepals 6, caducous. Petals 6, oval, flat, larger than the sepals. Stamens 6. Stigma circular, depressed, slightly 2-lobed. Fruit baccate, 2 -4-seeded. Seeds erect. — A smooth perennial herb, with two large, alternate, peltate, deeply 2-cleft, lobed and serrate leaves, and a terminal cyme of white flowers. 1. D. cymosa, Michx. — Margins of streams on the mountains of North Carolina. May and June. — Stem l°-2° high. Leaves often 2° in diameter, the divisions 5 - 7-lobed. Berries blue. '2* 18 CABOMBACE^E. ( WATER-SHIELD FAMILY.) 4. JEFFERSONIA, Barton. TWIN-LEAF. Sepals 4, petal-like, caducous. Petals 8, oblong. Stamens 8. Stigma nearly sessile, 2-lobed. Capsule coriaceous, obovate, many-seeded, opening transversely on the back, near the summit Seeds numerous, furnished with a fleshy lacini- ated aril. — A low stemless perennial herb, with long-petioled, 2-partcd leaves, and naked scapes, bearing a single white flower. 1. J. diphylla, Pers. — Rich shady woods, Tennessee and northward. April. — Lobes of the leaves half-ovate, entire or toothed. Scapes 6' - 12' high. Flowers 1' wide. 5. PODOPHYLLUM, L. MAY-APPLE. Sepals 6, caducous. Petals 6-9, obovate. Stamens twice as many (in our species) as the petals. Anthers opening longitudinally. Stigma large, peltate, sessile. Fruit baccate, many-seeded. Seeds enveloped in a pulpy aril. — A low perennial herb, with the naked stem terminated by two large peltate, 5 - 9-parted, lobed and toothed leaves, with a solitary nodding flowef in the fork. 1. P. peltatum, L. (MANDRAKE.) — Rich woods, Florida and north- ward. April and May. — Stems 1° high, the barren ones terminated by a single centrally peltate leaf, smooth. Leaves 4' -6' wide. Flowers 1' wide, greenish. Berry l'-2' long, ovoid, yellow, fragrant. ORDER 6. NELUMBIACE^. (NELUMBO FAMILY.) Aquatic herbs, with large circular centrally peltate floating leaves, and solitary hypogynous flowers on long peduncles. Sepals and petals sim- ilar, in several rows, imbricated in the bud, deciduous. Stamens indefi- nite, the slender filaments prolonged above the linear, adnate, introrse anthers. Ovaries separate, 1 -celled, 1-ovuled, imbedded in the flat sum- mit of the large obconical torus, forming large globular nuts in fruit. Stigma nearly sessile, peltate. Seeds suspended. Embryo large. Al- bumen none. 1. NELUMBITJM, Juss. NELUMBO. Characters of the order. 1. N. luteum, Willd. (WATER CHINQUEPIN.) — Lakes and still water, Florida, near Tallahassee, and northward and westward. Not common. July. — Rhizoma large, creeping. Leaves l°-2° wide, depressed in the centre. Flowers 5' - 6' wide, pale yellow. Appendage of the anthers linear. ORDER 7. CABOMBACE^E. (WATER-SHIELD FAMILY.) Aquatic perennial herbs, with peltate or dissected leaves, and solitary hypogynous flowers on long axillary peduncles. Sepals 3-4, colored NYMPH^EACEJE. ( WATER-LILY FAMILY.) 19 inside. Petals 3-4, withering-persistent. Stamens 6-18 : anthers ad- nate, extrorse. Ovaries 2 -18. Ovules suspended. Capsule indehiscent, 1-3-seeded. Embryo minute, at the base of fleshy albumen. 1. CABOMBA, Aublet. Sepals and petals 3. Stamens 6. Ovaries 2-4. Capsule 1-3-seccled. — Stems filiform, branching. Submerged leaves opposite, divided into numerous filiform flattened segments ; floating ones peltate, entire. Flowers small, in the axils of the floating leaves. 1. C. Caroliniana, Gray. Floating leaves oblong-linear ; flowers white. (Nectris aquatica, Nutt.) — Ponds and still water, Florida to North Carolina, and westward. June - August. — Stems 2° - 4° long. 2. BRASENIA, Schrebcr. WATER-SHIELD. Sepals 3-4, purple inside. Petals 3-4, linear, persistent. Stamens 12 - 18 : anthers cxsertecl. Ovaries 4-18. Capsule 1-2-seeded. — Leaves all peltate and entire, alternate, oval, on long petioles. Flowers axillary, on elongated peduncles, dull purple. 1. B. peltata, Pursh. (Hydropeltis purpurea, Miclix.) —Ponds and slow- flowing streams, Florida and northward. July. — Stem, petioles, and lower surface of the leaves coated with a gelatinous, viscid exudation. Leaves 2' -3' wide. ORDER 8. NYMPIOEACE^E. (WATER-LILY FAMILY.) Aquatic herbs, with peltate or cordate, entire, floating leaves, and soli- tary white or yellow flowers on long peduncles. Sepals 4-6, colored inside. Petals numerous, hypogynous or perigynous, imbricated in tho bud. Stamens numerous. Ovary many-celled. Ovules numerous, in- serted on the partitions. Stigmas radiate or peltate. Fruit baccate, many-seeded. Embryo included in a sac at the extremity of farinaceous albumen. Toum. WATER-LILY. i Sepals 4, green outside. Petals oblong, inserted into the thin torus which envelops the ovary, the inner ones passing into stamens. Stamens numerous, inserted above the petals, the outer ones petal-like : anthers adnate, introrse. Ovary many-celled. Stigmas as many as the cells, linear, radiating around a globular central gland. Berry globose. Seed enclosed in a membranaceous aril. — Leaves orbicular, cleft at the base to the centre, floating. Flowers on elongated, often spiral peduncles. 1. "N. odorata, Ait. (POND-LILY.) Rhizoma large, creeping; leaves 6' -12' wide, entire, the sinus narrow and the lobes acute, or else with an open 20 SARRACENIACE^E. (PITCHER-PLANT FAMILY.) sinus and obtuse lobes. (N. reniformis, Walt.) — Ponds and still water, Florida and northward. May- June. — Flowers white, 2'- 4' wide, fragrant, expanding in the morning. Petioles and peduncles occasionally villous. 2. NUPHAR, Smith. YELLOW WATER-LILY Sepals 5-6, obovate, yellow. Petals 10-20, stamen-like, hypogynous. Sta- mens numerous, at length recurved, -persistent. Ovary cylindrical, many-celled. Stigma sessile, circular. Berry oblong. Seeds smooth, without arils — Leaves cordate or sagittate, floating or erect. Flowers yellow, erect 1. "N. advena, Ait. (BONNETS. SPATTER-DOCK.) Leaves thickish, cordate, smooth or downy beneath, often emcrscd and erect, on stout petioles ; sepals 6, the outer ones rounded ; petals numerous, thick and fleshy, truncate. — In still water, common, flowering through the summer. 2. N. sagittsefolia, Pursh. Leaves thin, floating, on slender petioles, ob- long, sagittate, smooth ; lobes at the base expanding ; sepals 6 ; petals trans- formed into stamens. — In still water near the coast, Georgia to North Carolina ; rare. Juno- August. — Leaves 1° long, 2' wide. ORDER 9. SARRACENIACE^E. (PITCHER-PLANT FAMILY.) Perennial marsh herbs, with hollow pitcher or trumpet-shaped leaves, and a naked or bracted scape, bearing few or solitary nodding hypogynous flowers. Sepals 5, colored, persistent. Petals 5, imbricated in the bud, deciduous, rarely wanting. Stamens numerous : anthers adnate, introrse. Ovary 5-celled, many-ovuled. Placentae central. Style single, 5-cleft, or umbrella-shaped. Capsule 5-celled, many-seeded. Embryo minute at the base of fleshy albumen. 1. SARRACENIA, L. TRUMPET-LEAF. SIDE-SADDLE FLOWER. Calyx 3-bracted. Petals obovate, drooping or incurved. Style umbrella- shaped, 5-angled ; the angles emarginate, and bearing the minute hooked stig- mas beneath. Capsule globose, rough, loculicidally 5-valved. — Scape bractless, 1 -flowered. Flowers large, purple or yellow. Leaves 1 -winged, hairy within, and usually containing water and dead insects. * Flowers purple. 1. S. purpurea, L. (HUNTSMAN'S CUP.) Leaves short, spreading, the tube inflated, contracted at the throat, broadly winged ; lamina reniform, erect, hairy within, often purple-veined. — Mossy swamps, Florida and northward. April and May. — Leaves 4' - 6' long. Scapes 1° high. 2. S. Psittacina, Michx. (PARROT-BEAKED PITCHER-PLANT.) Leaves short, spreading ; tube slender, broadly winged, marked with white spots, and reticulated with purple veins ; lamina globose, inflated, incurved-beaked, almost closing the orifice of the tube. — Pine barren swamps, Florida and Georgia. April and May. — Leaves 2' - 4' long. Scapes 1° high. PAP AVERAGES. (POPPY-FAMILY.) 21 3. S. rubra, Walt. (RED-FLOWERED TRUMPET-LEAP.) Leaves elon- gated, erect, slender, narrowly winged, paler above, and reticulated with purple veins; lamina ovate, erect, beak-pointed, tomentosc within; flowers reddish- purple. — Sandy swamps in the middle districts, Georgia to North Carolina and westward. May. — Leaves 10'- 18' long, shorter than the scapes. 4. S. Drummondii, Groom. Leaves elongated, erect, trumpet-shaped, narrowly winged ; lamina erect, rounded, short-pointed, hairy within, and like the upper portion of the tube white, variegated with reticulated purple veins. — Pine barren swamps, Florida to the middle districts of Georgia and westward. April. — Leaves 2° long. Scapes longer than the leaves. Flowers 3' wide. # * Flowers yellow. 5. S. flava, L. (TRUMPET-LEAF. WATCHES.) Leaves large, erect, trumpet-shaped, narrowly winged ; lamina yellow, erect, orbicular, slender- pointed, tomentose within, reddish at the base, or reticulated with purple veins. — Low pine barrens, Florida to North Carolina and westward. April and May. — Leaves yellowish, 2° long. Lamina 3' - 4' wide. Scapes as long as the leaves. Flowers 4'- 5' wide. 6. S. variolaris, Michx. (SPOTTED TRUMPET-LEAF.) Leaves erect, trumpet-shaped, broadly winged, spotted with white near the yellowish summit ; lamina ovate, concave, arching over the orifice of the tube, hairy and reticulated with purple veins within. — Low pine barrens, Florida to North Carolina and westward. May. — Leaves 6' -12' long, longer than the scapes. Flowers 2' wide. ORDER 10. PAPAVERACE^E. (POPPY-FAMILY.) Herbs with colored juice, alternate exstipulate leaves, and solitary hy- pogynous flowers. Sepals 2-3, caducous. Petals 4-12, imbricated in the bud, deciduous. Stamens numerous. Anthers introrse. Ovary 1-celled, with parietal placentas. Capsule many-seeded. Embryo mi- nute, at the base of oily or fleshy albumen. 1. ARGEMONE, L. MEXICAN POPPY. Sepals 2-3, hooded or horned. Petals 4-8. Stigmas 4-7, free, radiate. Capsule oblong-obovate, hispid, opening at the summit by 3 - 6 valves, which separate from the filiform persistent placentae. Seeds globular, crested, pitted. — Glaucous herbs with yellow juice, sessile, pinnatifid, bristly leaves, and showy white or yellow flowers. 1 . A. Mexicana, L. Annual ; leaves pinnatifid-lobed, bristly and prickly, blotched with white ; flowers white or yellow ; calyx bristly. — Waste places, apparently native in South Florida. April and May. — Stem branching, l°-2° high. 22 FUMARIACE.E. (FUMITORY FAMILY.) 2. SANGUINARIA, L. PUCCOON. BLOOD-ROOT. Sepals 2. Petals 8-12. Stigmas 2. Capsule 2-valved, the valves separat- ing from the filiform persistent placentae. Seeds crested — A stemless peren- nial herb, with orange-colored juice. Rhizoma thick. Leaves reniform, with 5-7 wavy or toothed lobes. Flowers white, solitary at the summit of the naked scape, fugacious. 1. S. Canadensis, L, — Rich woods, Florida and northward. March.— Scape 4' - 6' high. Flowers 1' wide, appearing with the leaves. The CORN-POPPY (PAPAVER DUBIUM, L.) is occasionally met with in grain fields and around dwellings. ORDER 11. FUMARIACEJS. (FUMITORY FAMILY.) Smooth herbs with watery juice, alternate compound dissected leaves, without stipules, and irregular flowers. Sepals 2. Petals 4 ; the two outer or one of them spurred or gibbous at the base ; the two inner callous at the apex, and cohering over the stigma. Stamens 6, commonly united in two sets of three each, placed opposite the outer petals, hypogynous : anther of the middle stamen 2-celled, of the lateral ones 1-celled. Capsule 1-celled and 2-valved, with two parietal placentae, or 1-seeded and indehiscent. Embryo minute in fleshy albumen. Synopsis. 1. ADLTJMIA. Petals united, persistent. — A tender vine. 2. DTCENTRA. Petals connivent, deciduous ; the two outer ones gibbous at the base. - Stem- less herbs. 3. CORYDALIS. Petals distinct, deciduous, one of the outer ones gibbous at the base. — Caulescent herbs. 1. ADLUMIA, Raf. Sepals minute. Petals united, free at the summit ; the two outer ones gibbous at the base, withering-persistent. Capsule linear-oblong, 4- 8-seeded. Seeds reniform, not crested. Stigma 2-crested. — A smooth biennial vine. Leaves bi- ternate, with tendril-like petioles. Flowers pale violet, in axillary and drooping panicles. 1. A. Cirrhosa, Raf. (Corydalis fungosa, Vent. )— Mountains of North Carolina and northward. July - September. — Stem 8° -15° long. Leaflets thin, obovate, 2 - 3-lobed. Corolla thick and spongy. 2. DICENTRA, Bork. DUTCHMAN'S BREECHES. Sepals minute. Petals conniving, but scarcely united, deciduous or withering ; the two outer ones spurred or gibbous at the base. Filaments slightly united in two sets. Stigma 2-crested. Capsule 10-20-seeded. Seeds crested. — CKUCUTERJE. (MUSTARD FAMILY.) 23 Stemless perennial herbs, with ternately-compound and dissected leaves. Flow- ers racemose, nodding. 1. D. Cucullaria, DC. Rhizoma granular, bulb-like; scape simple, 4 - 10-fiowered, longer than the (1 -3) long-petioled linear-lobed leaves ; corolla whitish, with two divergent, wing-like spurs, longer than the pedicel ; inner petals minutely crested. — Rich woods, North Carolina and northward. April. — Scape 6' -9' high. 2. D. eximia, DC. Rhizoma granular, scaly ; raceme compound, many- flowered, shorter than the (3-8) oblong-lobed leaves ; corolla rose-color, 2-gibbous at the base ; inner petals conspicuously crested ; stigma 2-horned at the apex. — Mountain rocks, North Carolina and northward. June - September. — Scape 8' -12' high. Bracts purplish. 3. COBYDALIS, Vent. Sepals minute. Petals separate, deciduous ; one of the outer ones sac-like at the base. Filaments united nearly to the summit, with a gland at the base. Stigma 2-lobed. Capsule many-seeded. Seed crested. — Caulescent, annual or biennial herbs, with bipinnate dissected leaves, and flowers in lateral and termi- nal racemes. 1. C. aurea, Willd. Stems diffuse ; racemes simple ; capsule knotted, drooping ; crest of the seeds scalloped ; flowers yellow. — Banks of the Apa- lachicola River (and as an annual weed in gardens), Florida to Mississippi and northward. March .and April. — Stems 6' -12' long. Leaves finely dis- sected. 2. C. glauca, Pursh. Stems erect ; racemes compound ; capsule even, erect, crest of the seeds entire , flowers whitish, tinged with yellow and reddish. — Mountains of North Carolina and northward. May. — Plant glaucous, 1° - 2° high. Divisions of the leaves coarser than the last. ORDER 12. CRUCIFER^E. (MUSTARD FAMILY.) Herbs with pungejat watery juice, alternate exstipulate leaves, and reg- ular hypogynous racemose or corymbose flowers, on bractless pedicels. Fruit a silique or silicle. — Sepals 4, deciduous. Petals 4, regular, placed opposite each other in pairs, their spreading limbs forming a cross. Sta- mens 6 (rarely fewer), two of them shorter. Capsule 2-celled by a mem- branaceous partition which unites the two marginal placentaa, from which the two valves separate at maturity, or indehiscent and nut-like, or sepa- rating into 1 -seeded joints. Seeds campylotropous, without albumen, filled with the large embryo, which is curved or folded in various ways, or straight only in Leavenworthia. (The genera are distinguished chiefly by the fruit and seed ; the flowers being nearly similar throughout the order.) 24 CRUCIFER^E. (MUSTARD FAMILY.) Synopsis. I. SILIQUOS^E. Fruit a silique, few -many-seeded. * Cotyledons flattened, parallel with the partition, one edge applied to the ascending radicle (accumbent). t- Valves of the fruit nerveless. 1. NASTURTIUM. Silique short, nearly terete. Seeds in two rows in each cell. 2. IODANTIIUS. Silique elongated, terete. Seeds in a single row in each cell. 3. CARDAMINE. Silique linear, compressed. Seeds wingless, in a single row. 4. DENTARIA. Silique lanceolate, compressed. Seeds wingless, in a single row. 5. LEAVENWORTHIA. Silique oblong. Seeds winged. Embryo straight. •»- ••- Valves of the fruit 1-nerved. 6. ARABIS. Silique linear, elongated : valves flattened. * * Cotyledons flat, with one edge turned toward the partition, and the back of one of them applied to the ascending radicle (incumbent). 7. SISYMBRIUM. Silique sessile, nearly terete. 8. WAREA. Silique stalked, compressed. Petals on long claws. II. SILICULOSJE. Fruit a silicic. * Silicle compressed parallel with the broad partition, or globular. •*- Cotyledons accumbent. 9. DRABA. Silicle oval or oblong, many-seeded valves 1 - 3-nerved. 10. YESICARIA. Silicle orbicular, few-seeded : valves nerveless. •i- *- Cotyledons incumbent. 11. CAMELINA. Silicle obovoid : valves 1-nerved. * * Silicle compressed contrary to the narrow partition. Cotyledons incumbent, rarely accumbent. 12. SENEBIERA. Valves of the silicic globular, rugose : seeds' solitary. 13. LEPIDIUM. Valves of the silicic boat-shaped : seeds solitary. 14. CA£SELLA. Valves of the silicic boat-shaped : seeds numerous. HE. LOMENTACE2E. Fruit separating transversely into joints. 15. CAKILE. Fruit 2-jointed. 1. NASTURTIUM, K. Br. WATER-CRESS. Silique nearly terete, linear or oblong, or short and silicle-like, usually curved upward ; the valves nerveless. Seeds numerous, small, in two rows in each cell, not margined. Cotyledons accumbent. — Herbs. Leaves $innately-lobed. Flow- ers white or yellow, small. 1. N". tanacetifolium, Hook. & Arn. Smooth; stems diffuse; leaves pinnately divided, with pinnatifid or toothed lobes ; silique oblong-linear, pointed with the short style, twice as long as the pedicel. (Sisymbrium, Walt. S. Wai- ten, Ell.) — Damp soil, East Florida to South Carolina, and westward. March and April. — Stems 6'- 12' long. Flowers minute, yellow. 2. N. sessiliflorum, Nutt. Smooth ; stem stout, erect, branching ; leaves oblong-obovate, pinnatifid toward the base, toothed above, obtuse ; silique linear- oblong, pointed with the very short and thick style, four or five times as long as the pedicel. — Banks of the Apalachicola River, Florida and westward. Febru- ary - April. CL) — Stem 1° - 2° high. Flowers minute, yellow. CRUCIFER^E. (MUSTARD FAMILY.) 25 3. N. palustre, DC. Smooth or hairy ; stem erect, branching ; leaves clasping, pinnatifid, with toothed lobes ; silique short, ovate or oblong-ovate, pointed with the distinct and rather slender style, barely half as long as the spreading pedicel. — Wet places, North Carolina and westward. June -August. — Stem l°-2° high. Flowers small, yellowish. 4. "N. lacustre, Gray. Smooth ; stem sparingly branched ; immersed leaves pinnately divided into very numerous capillary segments, emersed ones lanceolate, serrate ; silique 1 -celled, obovate, pointed with the slender style, shorter than the spreading pedicel. — Rivers and cool springs, West Florida, thence northward and westward. July. — Stem l°-3° long. Flowers conspicuous, white. 5. ]N". officinale, R. Br. (WATER-CRESS.) Stems spreading and root- ing ; leaves pinnate, with the leaflets roundish or oblong and nearly entire ; silique linear (6'' -8" long), on slender spreading pedicels; petals white, twice the length of the calyx. — Ditches, &c., Florida and northward. Intro- duced. 2. IODANTHUS, Torr. & Gray. Silique linear, elongated, terete ; the valves nerveless. Seeds in a single row in each cell, not margined. Cotyledons accumbent. Claws of the violet-purple petals longer than the calyx. — A smooth perennial, with ovate-oblong pointed and toothed leaves, the lowest sometimes lyrate-pinnatifid, and showy flowers in panicled racemes. 1. I. hesperidoides, Torr. & Gray. (Hespcris pinnatifida, Mchx.) — Banks of rivers, Tennessee and northward. May and June. — Stem l°-3° high. Pods 1' or more long, curving upward. 3. CABDAMINE, L. Silique linear, flattened ; the valves nerveless, usually opening clastically from the base. Seeds several, wingless, disposed in a single row in each cell, sus- pended by filiform stalks. Cotyledons accumbent. — Herbs. Leaves often un- divided, Flowers purple or white. * Perennials. 1. C. rotundifolia, DC. Smooth; root fibrous; stem erect, simple, soon bearing from the root or upper axils long and leafy runners ; leaves oval or orbicular, often cordate, wavy or toothed, the lowest long-petioled and some- times sparingly pinnatifid ; silique subulate, spreading ; seeds oval. — Cool springs, in the upper districts and northward. May and June. — Stem 6' -12' high. Runners at length 2° - 3° long. Flowers conspicuous, white. 2. C. rhomboidea, DC. Smooth ; root tuberous ; stem simple, erect, without runners ; leaves long-petioled, round-cordate, with wavy margins ; the uppermost oblong-ovate, toothed, sessile ; silique linear-lanceolate, pointed with the slender style; seeds round-oval. — Cool springs, West Florida and north- ward. April and May. — Stem 12'- 18' high. Flowers white, larger than in No. 1. 3 26 CRUCIFER^:. (MUSTARD FAMILY.) * * Annuals. 3. C. spathulata, Michx. "Radical leaves petiolate, spathulate, entire, pubescent with branching hairs ; stem-leaves linear Stem decumbent, silique linear, straight, spreading and slightly reflexcd, pointed with the sessile stigma." (DC.) — High mountains of Carolina (Michaux). ( *) 4. C. Ludoviciana, Hook. Low; stems branching and hairy at the base; leaves lanceolate, pinnatifid with numerous oblong or linear sparingly toothed lobes, those of the root tufted ; silique broadly linear, erect-spreading, pointed with the sessile stigma ; seeds orbicular, margined. — Waste places near dwellings, Florida to North Carolina and westward. March and April. — Stems 4' -6' high. Flowers small, white. 5. C. hirsuta, L. Smooth or hairy ; stem erect ( 1° - 2° high), branching ; leaves pinnatifid, with numerous oval or oblong sparingly toothed lobes, those of the upper leaves linear and entire ; silique narrow-linear, erect, pointed with the nearly sessile stigma; seeds oval, minute, marginless. — Var. VIRGINICA. (C. Virginica, Michx.) Smaller (6' -10' high); lobes of the leaves linear or filiform. — Wet (the variety in dry) soil, Florida and northward. March and April. — Flowers small, white. 4. DENT ARIA, L. TOOTHWORT. Silique lanceolate, flattened. Seeds ovate, disposed in a single row in each cell, on flattened stalks, not margined. — Perennial herbs, wkh creeping fleshy roots, and simple stems, bearing at the summit 2-3 palmately-divided leaves, and a single raceme of large white or purple flowers. Radical leaves on long petioles. 1. D. diphylla, Michx. Root not jointed ; stem-leaves 2, opposite or near- ly so, ternately divided; leaflets ovate or ovate-lanceolate, coarsely toothed; those of the root similar ; racemes many-flowered, longer than the leaves ; flow- ers white. — Rich shady woods, along the mountains and northward. April. — Stem 8' -12' high. Root pungent. 2. D. laciniata, Muhl. Root jointed ; stem-leaves mostly 3, whorled, ternately divided; leaflets lanceolate or linear, lobed and toothed; the lateral ones 2-paited j those of the root similar or sometimes wanting ; racemes few - many-flowered, often shorter than the leaves ; flowers white or pale purple. — Banks of rivers in shady places, Florida and northward. Feb. - April. — Stem 4' -12' high. 3. D. heterophylla, Nutt. Root jointed; stem -leaves 2, small, opposite, 3-parted ; leaflets linear, toothed or entire ; root-leaves ternate, with large ovate crenately-lobed and toothed leaflets ; racemes few-flowered ; flowers rather small, purple. — Shady woods, North Carolina and northward. April. — Stem 6' - 12' high. 4. IX multifida, Muhl. Root tuberous ; stem-leaves mostly 3, whorled, 2 - 3-ternately divided into very narrow segments ; flowers white. — Shady woods in the upper districts, Alabama and northward. Stems 6' - 8' high. Leaves often as finely divided as those of the Carrot, sometimes approaching some of the forms of No, 2, but with smaller flowers, and longer petioles and pedicels. CKUCIFERJE. (MUSTARD FAMILY.) 27 5. LEAVENWORTHIA, Torr. Silique oblong or oblong-linear, compressed, often contracted between the seeds. Seeds in a single row in each cell, orbicular, flat, winged. Embryo straight or nearly so. — Small annual or biennial herbs, with short 1 -few-flow- ered stems, pinnatifid leaves, and yellow, white, or purplish flowers, on elongated pedicels. 1 . L. aurea, Torr. Leaves mostly radical, with 4-8 oblong toothed lobes, the terminal one larger and rounded; raceme at length 4-10-flowered; style manifest ; embryo straight. — On flat rocks in the upper districts of Alabama and westward. — Plant 2' - 6' high. Flowers yellow. 2. L. Michauxii, Torr. Leaves as in No. 1 ; flowers mostly solitary, on radical peduncles ; style almost none ; embryo slightly curved. (Cardamine uni- flora, Michx.) — Rocks, Alabama and Tennessee. — Flowers purplish or white. 6. ABABIS, L. Silique elongated, linear, flattened ; valves 1-nerved. Seeds numerous, in a single row in each cell, roundish, usually winged or margined. Cotyledons ac- cumbent. — Chiefly annual or biennial herbs. Radical leaves mostly pinnatifid ; those of the stem sessile and often cordate or sagittate at the base. Flowers white or rose-colored, in terminal racemes. 1. A. hirsuta, Scop. Rough-hairy; stems mostly simple, erect, rigid, very leafy ; radical leaves oblanceolate, obtuse, mostly entire ; those of the stem lanceolate or oblong, clasping, sparingly toothed; silique pedicelled, narrow- linear, erect, pointed with the sessile stigma ; seeds narrow-margined. — Rocky or sterile soil, Tennessee and northward. May. ® — Stems l°-2° high, often several from one root. Leaves %'-l' long. Flowers small, the greenish-white petals rather longer than the calyx. 2. A. patens, Sulliv. Downy with spreading hairs, erect (1° -2° high); stem-leaves oblong-ovate, acutish, coarsely toothed or the uppermost entire, half- clasping by the heart-shaped base ; petals (bright-white) twice the length of the calyx ; pedicels slender, spreading ; silique slender and curving upward, tipped with a distinct style. — Rocky banks near Nashville, Tennessee, and northward. May. — Silique 1 £' - 2' long. 3. A. dentata, Torr. & Gray. Pubescent and roughish; stems slender, diffusely branched, erect or ascending ; leaves obtuse, unequally and sharply toothed, the lowest (2' -5' long) oblong-obovate, tapering into a slender petiole; the others smaller, oblong, clasping and auriculate at the base ; racemes at length elongated ; siliques scattered, narrow-linear, widely spreading, on short pedicels ; petals whitish, scarcely exceeding the calyx. — Tennessee and northward. May. — Plant about 1° high. Silique 1' long. 4. A. lyrata, L. Stem smooth, branching from the base ; radical leaves tufted, pinnatifid, ciliate, those of the stem linear or lanceolate and entire ; silique pedicelled, very narrow, erect-spreading, pointed with the short style ; seeds with- out margins. — Mountains of North Carolina and northward. April -June. — Stems 4' - 10' high. Flowers white, the petals twice the length of the calyx. 28 CRUCIFERJE. (MUSTARD FAMILY.) 5. A. Canadensis, L. Stem stout, simple, nearly smooth above ; leaves thin, downy, lanceolate, slightly toothed, sessile by a narrow base, the lowest coarsely or pinnatifid-toothed ; siliques curved, drooping, on rough pedicels; seeds winged. (A. falcata, Michx.) — Dry or rocky places in the upper districts. May and June. — Stems 2° -3° high. Silique 2' -3' long. Flowers white. Petals oblong-linear, not twice the length of the hairy calyx. 6. A. Isevigata, DC. Smooth and glaucous ; stem erect ; leaves linear or lanceolate, entire or sparingly toothed, sagittate and clasping at the base ; pedicels short; petals (whitish) narrow, slightly exsertcd ; silique elongated, narrow-linear, recurved-spreading ; seed winged. — Rocky places, North Caro- lina, Tennessee, and northward. May. — Stem l°-2° high. Silique 2' -3' long. 7. SISYMBRIUM, L. HEDGE-MUSTARD. Silique linear or oblong, terete or somewhat angled, with 1 -3-nerved valves. Seeds in a single row in each cell, oblong, marginless. Cotyledons linear-oblong, incumbent. — Herbs with simple or pinnately divided leaves. Flowers in ra- cemes, small, white or yellow. 1. S. canescens, Nutt. Pubescent and somewhat hoary ; stem simple or sparingly branched; leaves bipinnatifid, with small mostly toothed lobes; ra- cemes at length elongated ; silique shorter than the spreading pedicel. (Carda- mine? multifida, DC.) — Waste ground, Florida, northward and westward. March and April. @ — Stem l°-2° high. Flowers small, greenish-white. 2. S. Thaliana, Gaud. Stem slender, branching, hairy at the base ; leaves hairy, toothed or entire, the lowest obovate or oblanceolate, tufted, the others small and scattered ; siliques linear, erect-spreading, twice as long as the pedi- cels.— Rocks and sterile soil, Georgia and northward. Introduced. March and April. @ — Stem 4'- 8' high. Flowers white. 3. S. Oflacinale, Scop. Stem tall (2° -3°), branching, and with the run- cinate leaves pubescent ; silique subulate, nearly sessile, appressed to the rachis. — "Waste grounds in the upper districts, and northward. Introduced. May- Sept. (1) — Flowers pale yellow. 8. WAREA, Nutt. Silique linear, flattened, long-stalked, recurved ; the valves 1-nerved. Seeds in a single row in each cell. Cotyledons oblong, flat, incumbent. — Smooth and erect branching annuals. Leaves entire. Flowers showy, in corymb-like racemes. Petals long-clawed, white or purple. 1. W. amplexifolia, Nutt. Leaves oval and slightly clasping; petals oval, bright-purple ; silique linear. — Sand hills, Florida. September. — Stem l°-2° high. 2. W. cuneifolia, Nutt. Leaves wedge-lanceolate; petals obovate, white or rarely purple; silique narrow-linear. — Sand hills, Florida and Georgia. September. — Stem l°-2° high. CKUCIFER^. (MUSTARD FAMILY.) 29 9. DRABA, L. Silicle oblong or oval, flattened parallel with the broad partition. Seeds nu- merous in two rows in each cell, compressed, wingless. Cotyledons accumbent. — Small herbs with entire or toothed leaves, and yellow or white flowers in ter- minal racemes. § 1. DRABA. — Petals entire. 1. D. brachycarpa, Nutt. Annual; minutely downy ; stems leafy, sim- ple or branched ; radical leaves round-ovate, stalked, those of the stem oblong- linear ; silicic oval, as long as the pedicel. — Middle districts of Georgia, in dry soil, and westward. March and April. — Stem 2' - 6' high. Silicle 2"- 3" long. Flowers white. 2. D. Caroliniana, Walt. Annual ; stems leafy and hispid at the base, smooth above ; leaves tufted, spatulate-obovate, hispid ; silicle linear-oblong, two or three times as long as the pedicel. — Sandy fields, Georgia and north- ward. February - April. — Stems 1'- 3' high. Silicle 4" -6" long. Flowers white. 3. D. CUneifolia, Nutt. Annual ; leaves obovate, wedge-shaped, or the lowest spatulate, toothed ; raceme somewhat elongated in fruit (l'-3'), at length equalling the naked peduncle ; petals emarginate, much longer than the calyx ; silicles oblong-linear, minutely hairy, longer than the horizontal pedicels. — West Florida (Nuttall) and westward. March and April. 4. D. ramosissima, Desv. Perennial; stems diffuse, pubescent ; leaves linear-lanceolate or the lowest oblanceolate and crowded, coarsely toothed ; ra- cemes corymbose-branched ; silicle lanceolate, flat, twisted, hairy ; style slender. — Mountains of North Carolina and northward. April and May. — Stems 4' - 8' long. Flowers white. § 2. EROPHILA. — Petals 2-cleJl. 5. D. verna, L. Stems naked, slender (2' -4' high) ; leaves radical, ob- long ; silicles oblong, smooth, shorter than the pedicels, scattered ; flowers small, white. — Waste places, chiefly in the upper districts. Introduced. (I). 10. VESICARIA, Lam. Silicle globular and inflated, or more or less flattened parallel to the orbicular partition ; the hemispherical or convex thin valves nerveless. Seeds few or sev- eral, flat. Cotyledons accumbent. Filaments toothless. — Low herbs, pubescent or hoary with stellate hairs. Flowers mostly yellow. 1. V. Lescurii, Gray. Somewhat pubescent, but green ; stems dif- fusely ascending from a biennial root ; leaves oblong or oval, sparingly toothed, those of the stem half-clasping by a sagittate base ; racemes elongated, many- flowered ; pedicels ascending ; filaments inflated at the base ; style half the length of the hispid orbicular or broadly oval flattened silicle ; seeds wing-mar- gined, one to four in each cell. — Hills near Nashville, Tennessee. April and May. — Flowers golden yellow. 3* 30 CRUCIFEILE. (MUSTARD FAMILY.) 11. CAMELINA, Grant/. Silicic ovoid or pear-shaped, flattened parallel to the broad partition ; valves 1 -nerved. Seeds numerous, oblong. Cotyledons incumbent. Style slender. — Flowers small, yellow. 1. C. saliva, Crantz. Leaves alternate, sagittate; silicic large. — Fields, North Carolina, and northward. Introduced. (l). 12. SENEBIERA, Poir. Silicic didymous, compressed contrary to the narrow partition ; the cells glob- ular, 1-seeded, crested or pitted, indehiscent, at maturity separating from the par- tition. Cotyledons incumbent. — Annual or biennial diffuse strong-scented herbs, with pinnatcly lobed or divided leaves, and minute white flowers, in short ra- cemes, opposite the leaves. Stamens 2, 4, or 6. 1. S. pinnatifida, DC. Stem prostrate; leaves deeply pinnatifid, with the numerous lobes toothed on the upper edge ; silicic pitted, emarginate at both ends. — Waste places, Florida to North Carolina. March -May. — Racemes many-flowered. 2. S. CoronopUS, Poir. Stem prostrate; leaves deeply pinnatifid, with the lobes entire, toothed, or pinnatifid ; silicles not emarginate, the margins crested. — Waste places. Introduced. March and April. 13. LEPIDIUM, L. PEPPERGRASS. Silicic rounded or obcordate, compressed contrary to the narrow partition ; valves carinate : cells 1-seeded. Cotyledons accumbent and incumbent. Petals sometimes wanting. Stamens 2, 4, or 6. — Leaves entire, toothed, or pinnately divided. Flowers minute, in terminal racemes. 1. L. Virginicum, L. Smooth; stem erect, much branched; leaves lanceolate, sharply toothed, the lowest tapering and mostly pinnatifid toward the base ; silicic orbicular, wingless ; cotyledons accumbeut ; stamens mostly two. — Waste places, very common. March -June. (I) — Stem 1° - 2° high. 14. CAPSELLA, Vent. SHEPHERD'S PURSE. Silicic triangular-wedge-shaped, flattened contrary to the narrow partition, many-seeded ; valves wingless. Cotyledons incumbent. — An annual herb, with the radical leaves clustered and pinnatifid ; those of the stem clasping and often entire. Racemes elongated. Silicic shorter than the spreading pedicel. Flowers white. 1. C. Bursa-pastoris, Moench. — Waste ground, Florida and northward. March and April. Introduced. 15. CAKILE, Tourn. Silicic 2-jointed; the joints thick, 1-celled, 1-seeded. Seed of the upper joint erect, of the lower suspended. Cotyledons accumbent. — Fleshy sea-side annu- als, with pinnatifid or lobed leaves, and white or purple flowers in racemes op- posite the leaves. CAPPARIDACE^E. (CAPER FAMILY.) 31 1. C. maritima, Scop., var. 88qualis. Smooth; stem much branched, prostrate ; leaves oblong, irregularly toothed or pinnatifid, narrowed intc ,a petiole as long as the limb ; flowering racemes short and corymb-like, fruiting ones elongated ; petals wedge-obovatc, emarginatc ; mature silicic linear, 8-ribbed, the upper joint ovate-lanceolate, slightly compressed, beak-pointed, one third longer than the cylindrical lower one ; cotyledons linear, 3-anglcd. (C. sequa- lis, L'Her.) — Drifting sands along the coast. May -August. — Stems l°-2° long. Flowers pale purple. ORDER 13. CAPPARIDACE^E. (CAPER FAMILY.) Herbs, shrubs, or trees, with acrid watery juice, alternate, simple or palmately-compound leaves, and regular hypogynous flowers. Stipules spiny or wanting. — Sepals 4, imbricated or valvate in the bud. Petals 4, mostly clawed. Stamens 6 or numerous. Ovary 1-celled : ovules am- phitropous or campylotropous, attached to the two parietal placentas. Fruit silique-like, and 2-valved or indehiscent. Seeds reniform, without albumen. Embryo curved. Synopsis. * Calyx 4-sepalous. — Herbs. 1. POLANISIA. Stamens 8 - 32, free. Torus short. Style filiform. 2. CLEOME. Stamens 6. free. Torus short. Stigma sessile. 3. GYNANDROPSIS. Stamens G. Filaments partly united with the stipe of the ovary. * * Calyx 4-parted. — Shrubs. 4. CAPPARIS. Stamens numerous, free. Leaves entire. 1. POLANISIA, Raf. Petals clawed. Stamens 8-32: filaments free, unequal, filiform. Torus short, bearing a truncated or emarginate gland on the upper side. Ovary sessile or short-stipitate. Style filiform. Capsule silique-like, many-seeded. — Annual clammy herbs, with palmately trifoliolate petioled leaves, and racemose flowers. 1. P. tenuifolia, Torr. & Gray. Stem slender, erect, branching ; leaflets filiform, longer than the petiole ; petals oval, entire, short-clawed, unequal ; sta- mens 12-15; capsule linear, smooth, short-stipitate, pointed with the persistent style ; seeds minute, circular. — Georgia (Le Conte) and South Florida (Blodgett). — Stem l°-2° high. Flowers white. 2. CLEOME, L. Petals long-clawed, nearly equal, entire. Stamens 6. Filaments filiform, elongated, 1-3 often shorter, rarely all abbreviated. Torus short, hemispherical. Stigma sessile. Capsule silique-like, stipitate or almost sessile, many-seeded. — Herbs with palmately 3 -7-foliolate leaves, and bracted racemose flowers. Stip- ules, when present, spiny. 32 VIOLACE^E. (VIOLET FAMILY.) 1. C. pungens, Willd. Clammy-pubescent; leaves 5 - 7-foliate, long- petioled ; leaflets lanceolate, acute, serrulate ; lower bracts trifoliolate, the upper ones simple, cordate-ovate ; stipules spiny ; capsule smooth, shorter than the elon- gated stipe ; seeds rugose. — "Waste places, Florida and westward. May - August. Introduced. © — Stem 2° - 4° high. Petioles more or less spiny. Flowers showy, purple, changing to white. 3. GYNANDROPSIS, DC. Petals clawed, imbricated or open in the bud. Stamens 6 ; the filaments ad- nate to the lower half of the elongated stipe of the ovary. Stigma sessile. Capsule silique-like, many-seeded. — Herbs with palmately 3 - 5-foliolate leaves, and racemose bracted flowers. 1. G. pentaphylla, DC. Clammy-pubescent; leaves 5-foliate, the lower ones and bracts 3-foliolate ; leaflets oblong-obovate, nearly entire ; flowers white, open in the bud ; capsules hispid ; seeds warty. — Waste places, Florida to North Carolina. Naturalized. May -August. © — Stem 2° -3° high. 4. CAPPABIS, L. CAPER-TREE. Sepals partly united, imbricated or valvate in the bud, often glandular at the base. Petals imbricated in the bud. Stamens numerous. Torus small. Ovary long-stipitate. Stigma sessile. Fruit fleshy, globose or silique-like, many- seeded. — Shrubs or trees, with simple entire coriaceous leaves, spiny or adnate stipules, and mostly showy flowers. 1. C. Jamaicensis, Jacq, Leaves oblong, emarginate, smooth above, the lower surface, like the flowers and flattened branches, dotted and covered with minute scales ; flowers terminal, by pairs, on short 4-angled peduncles ; sepals ovate, valvate in the bud, scarcely shorter than the oval white petals ; filaments 20 - 24, long, villous at the base; capsule long (6'- 8'), cylindrical, torulose, downy, long-stipitate. ( Colicodendron anceps, Shuttl.) — South Flor- ida. — Shrub 8° - 10° high. 2. C. cynophallophora, L. Leaves oblong, obtuse, reticulate-veined, glabrous like the flowers and branches ; peduncles 4-angled, few-flowered ; se- pals rounded, imbricated in the bud, much shorter than the obovate white petals ; filaments very long (2'), smooth; capsule (6' -8' long) smooth, torulose, short- stipitate, pulpy within. — South Florida. — Shrub 6° - 8° high. ORDER 14. VIOL.ACE7E. (VIOLET FAMILY.) Herbs or shrubs. Leaves alternate, simple, involute in the bud. Stip- ules persistent. Flowers irregular, axillary, on bracted peduncles, nod- ding. Sepals 5, persistent, imbricated in the bud. Petals 5, hypogynous, obliquely convolute in the bud. Stamens 5, alternate with the petals, connivent. Anthers adnate, introrse, Style single. Capsule 1-celled, loculicidally 3-valved, many-seeded: valves each bearing a placenta in the middle. Embryo straight, in fleshy albumen. VIOLACEJE. (VIOLET FAMILY.) 33 1. VIOLA, Tourn. VIOLET. HEART'S-EASE. Sepals nearly equal, produced at the base into a free appendage. Petals un- equal, the lower one produced into a sac or spur at the base. Stamens short • the broad filaments membranaceous and prolonged above the anthers ; the two anterior ones spurred on the back. Stigma often beaked. — Low herbs. Pe- duncles 1 -flowered. § 1. Leaves and peduncles arising from a subterranean rhizoma, without apparent stems : perennials, flowering in early spring, the later flowers apetalous. * Flowers blue or purple* 1. V. CUCUllata, Ait. Smooth or pubescent ; leaves long-petioled, all undivided, varying from cordate-ovate to reniform, serrate, the sides at the base involute when young ; the later ones acutish ; lateral petals bearded ; stigma beakless. — Low ground, common. — Flowers blue, often variegated with white. 2. V. palmata, L. Downy or hairy, rarely smooth ; earliest leaves entire, cordate or reniform; later ones variously 3- 9-lobed, the central lobe always largest, lanceolate or oblong, the lateral ones spreading ; flowers large, with the lateral and lower petals bearded. — Dry soil, common. — Flowers purple or blue. 3. V. Villosa, Walt. Downy ; leaves prostrate, short-petioled, orbicular or broadly cordate, crenate, purple- veined ; peduncles mostly shorter than the leaves, flowers small. — Dry sandy or gravelly soil, Florida to North Carolina. — Flowers pale blue. 4. V. sagittata, Ait. Smoothish; leaves cordate-oblong, acute, toothed and somewhat sagittate at the base, the earliest ones rounded, short-petioled ; lateral petals bearded. — Damp pastures in the upper districts and northward. — Flowers larger than in the last, deep blue. 5. V. pedata, L. Smoothish ; leaves all 7 - 9-parted, the divisions linear- lanceolate, entire or toothed, narrowed downward ; petals beardless. — Dry sandy soil in the middle and upper districts, and northward. — Flowers large, deep blue or purple. * * Flowers white. 6. V. primulsefolia, L. Smooth or hairy ; leaves oblong, mostly acute, crenate, cordate or abruptly decurrent on the winged petiole ; petals often acute, the lower ones bearded and striped with purple. — Low grounds, common. — Rhizoma slender, and commonly bearing long leafy runners. Flowers small. 7. V. lanceolata, L. Smooth or pubescent ; leaves lanceolate or linear, narrowed into the long and winged petioles ; flowers beardless. — Low pine bar- rens. Florida and northward. — Rhizoma like the last. 8. V. blanda, Willd. Minutely pubescent; rhizoma slender; leaves small, orbicular-cordate, crenate, shorter than the peduncles ; flowers small, beardless, sweet-scented, the lower petal striped with purple. — Low ground and meadows, North Carolina and northward. — Petioles slender, wingless. Leaves rarely acute. 34 VIOLACE^E. (VIOLET FAMILY.) * # # Flowers yellow, 9. V. rotundifolia, Michx. Nearly smooth ; leaves broadly cordate, longer than the short petioles ; lateral petals bearded. — Mountains of North Carolina and northward. — Rhizoma slender, bearing runners. Leaves flat on the ground. Petals striped with purple. § 2. Leaves and flowers Lome on manifest stems : perennials. * Stems leafy throughout. 10. V. Muhlenbergii, Torr. Primary stems erect, the later ones pros- trate ; leaves broadly cordate or reniform, crenate and roughened with minute elevated points, the uppermost acute ; stipules fringed ; spur obtuse, half as long as the pale purple petals ; lateral petals bearded. — Damp shades in the upper districts and northward. Var. multicaulis, Torr. & Gray. Stems all prostrate and creeping;' leaves smaller, roundish, obscurely crenate, purple-veined. — Dry rocks and hills in the lower districts. March and April. — Stems slender, 4' - 6' long. 11. V. Stricta, Ait. Stems ascending ; leaves cordate, serrate, rough- ened as in No. 10, the uppermost often acute ; stipules large, fringed ; spur thick, shorter than the large cream-colored petals ; lateral petals bearded, the lower striped with purple. — Mountains of Georgia and northward. April. — Stems 10' - 12' high. Peduncles elongated. 12. V. Canadensis, L. Tall ; leaves large, broadly cordate, acuminate, coarsely serrate, longer than the peduncles ; stipules nearly entire ; spur very short; petals white, externally purplish, the lateral ones bearded. — Rich soil along the mountains of North Carolina and northward. May - August. — Stems l°-2° high. * * Stems leafy at the summit : stipules entire. 13. V. liastata, Michx. Smooth or hairy ; leaves rhombic-ovate, hastate - 3-lobed, or the lower ones 3-parted (V. tripartita, Ell.}, serrate and commonly acute ; flowers small, yellow ; lateral petals bearded, the lowest striped with purple ; spur very short. — Shaded hill-sides, Florida and northward. April and May. — Stem 6'- 12' high. Stipules small. 14. V. pubescens, Ait. Downy or woolly ; leaves broadly cordate, coarsely serrate, mostly acute ; stipules large ; spur very short ; flowers yellow, the lower petals veined with purple, bearded. — Dry rocky soil in the upper dis- tricts, and northward. April. — Stems 6' - 12' high. Capsules sometimes villous. § 3. Stems leafy : root annual. 15. V. tricolor, L., var. arvensis, DC. Stems branching ; lowest leaves roundish, the upper lanceolate, entire ; stipules leafy, pinnatifid ; flowers small, yellow and purple. — Cultivated ground. Introduced. — Stem 6' high. 2. SOLE A, Ging. Sepals not produced at the base. Petals unequal, the lowest one gibbous at the base and 2-lobed at the apex, the others smaller. Stamens with the filaments united and produced above the anthers, the two lower ones glandular at the CISTACE^E. (ROCK-ROSE FAMILY.) 35 base. Style hooked at the summit. — An upright simple hairy perennial herb, with numerous ovate-lanceolate, acuminate and entire leaves, and 1-3 short- stalked greenish nodding flowers in each axil. 1 . S. concolor, Ging. — Mountains of Carolina and northward, in deep shades. June and July. ( Viola concolor, Pursh.) — Stem 1°- 2° high. Leaves short-petioled. ORDER 15. CISTACEJS. (ROCK-ROSE FAMILY.) Herbs or low shrubs, with entire leaves, and regular mostly polyandrous flowers. — Sepals 5, persistent, the two outer ones smaller, the three inner twisted in the bud. Petals mostly 5, twisted contrary to the sepals in the bud, rarely wanting. Stamens few or numerous, distinct, hypogynous. Anthers innate. Ovary 1-celled. Style single. Capsules 3- 5-valved, bearing as many parietal placentae each in the middle of the valve, few or many-seeded. Seeds orthotropous. Embryo curved, in mealy albumen. Synopsis. 1. IIELIANTHEMUM. Style none. Stigma capitate. Embryo nearly annular. 2. LECUEA. Style none. Stigmas plumose. Embryo nearly straight. 3. HUDiONIA Style filiform Stigma minute. Embryo coiled. 1. HELIANTHEMUM, Tourn. ROCK-ROSE. Petals 5, corrugated in the bud, sometimes wanting. Stigma sessile or nearly so, capitate, 3-lobed. Capsule 3-valved. Embryo curved nearly into a ring. — Low herbs or partly shrubby plants, with fugacious yellow flowers. * Floivers perfect : petals conspicuous : stamens indefinite : capsule many-seeded. 1. H. Carolinianum, Michx. Hirsute; leaves lanceolate, denticulate, acute, short-petioled, the lowest obovate, crowded ; flowers large, solitary, borne above the axils. — Dry sandy soil, Florida to North Carolina and westward. March and April. — Stems 6' -12' high, ascending from a shrubby base. Flowers 1' wide. 2. H. arenicola, sp. n. Hoary ; leaves small, lanceolate, obtuse, entire, with the sides revolute ; flowers solitary, or 2 - 4 in terminal umbellate clusters, on slender pedicels. — Drifting sands near the coast, West Florida. March and April. — Stems shrubby and branched at the base, all but the short (2' -6') flowering stems buried in the sand. Flowers £' wide. * * Flowers of two kinds : the earliest as in the last section, the later ones smaller, clustered, with small petals, or none, fewer stamens, and few-seeded capsules. 3. A. COrymbosum, Michx. Tomentose, stems erect, shrubby at the base ; leaves lanceolate, obtuse, entire, hoary beneath, with the sides revolute ; flowers nearly sessile in a cymose cluster at the summit of the stem, the perfect ones long-ped uncled ; sepals woolly. — Dry sands near the coast, Florida to North Carolina. April. — Stems 1° high. Capsule smooth. 36 DROSERACE.&. (SUNDEW FAMILY.) 4. H. Canadense, Michx. Stems erect, at first nearly simple, downy or smooth ; leaves lanceolate, downy, or nearly smooth above ; flowers axillary, the perfect ones large, solitary, the later apetalous ones clustered or sometimes wanting. (H. rosmarinifolium, Ph. 1 H. ramuliflorum, Michx.) — Dry sterile soil, Florida and northward. April. — Stems 1° high. Perfect flowers an inch wide. 2. LECHEA, L. Petals 3, persistent, not longer than the sepals. Stamens 3-12. Stigmas 3, sessile, plumose. Capsule globose, 3-valved, incompletely 3-celled, 6-seeded. Embryo slightly curved. — Perennial herbs, with small greenish flowers in racemes or panicles. 1. L. major, Michx. Villous; leaves alternate, opposite, or whorled, el- liptical, those on the prostrate radical branches roundish ; flowers on short pedi- cels, densely crowded in short simple or compound axillary racemes. (L. villosa, Ell.) — Dry sterile soil, Florida and northward. July and August. — Stem 2° high, brandling toward the summit. Capsules as large as a pin's head. 2. L. minor, Lam. Rough with appressed scattered hairs ; the young branches and calyx more or less hoary ; stems paniculately branched above ; leaves scattered, linear ; flowers loosely racemose, on distinct, often appressed pedicels. (L. racemulosa and L. tenuifolia, Michx.) — Dry sandy soil, common. July and August. — Stems £° - 2° high. Capsules larger than in No. 1. Rad- ical branches often wanting. 3. HUDSONIA, L. Petals 5, larger than the sepals, fugacious. Stamens 9-30. Style filiform. Stigma minute. Capsule oblong, 1-celled, 3-valved, with 2-6 erect seeds at- tached near their base. Embryo coiled. — Low tufted shrubs, with minute hoary, subulate, imbricated leaves, and yellow flowers at the summit of the branches. 1. H. montana, Nutt. Stems 2/-4' high; leaves loosely imbricated; pedicels longer than the flowers ; calyx campanulate; sepals acuminate. — Table Rock, North Carolina. ORDER 16. DROSERACE^. (SUNDEW FAMILY.) Low glandular-hairy marsh herbs, with circinate tufted radical leaves, and regular hypogynous white or purplish flowers, borne on a naked scape. Sepals 5, persistent. Petals 5, withering. Stamens 5- 15, distinct : an- thers extrorse. Ovary 1-celled, many-ovuled, with 3 or 5 parietal pla- centae. Styles separate or united. Capsule loculicidally 3-5-valved. Seeds anatropous. Embryo minute at the base of fleshy albumen. 1. DBOSEBA, L. SUNDEW. Stamens 5. Styles 3-5, deeply 2-parted ; the divisions 2 - many-lobed. Cap- sule 3-valved, many-seeded. — Leaves dewy with glandular hairs. Scape often forking. Flowers racemose, secund. TARNASSIACE^E. (PARNASSIA FAMILY.) 37 1. D. filiformis, Raf. Rhizoma thick, creeping; leaves erect, filiform, elongated, smooth at the base ; scape smooth, many-flowered ; flowers large, bright purple ; calyx hairy ; seeds oblong, dotted. — Low pine barrens, Florida and northward. April. 1J. - - Scapes 1 ° - 1 £° high. Flowers 1 ' or more wide. 2. D. longifolia, L. Rhizoma long and slender ; leaves linear-spatulatc, gradually narrowed into the long and smooth petiole, the upper ones erect ; scape smooth, declined at the base, 8 - 12-flowered ; calyx obovate ; seeds oblong. (D. foliosa, Ell.) — Sandy swamps, oftencr in water, Florida and northward. May and June, ty — Scapes 4' -6' high. Flowers small, white. 3. D. capillaris, Poir. Rhizoma short or none; leaves spatulate, nar- rowed into the long and smoothish petiole ; scape slender, smooth, erect, 9 - 20- flowered ; calyx obovate ; seeds oval, finely furrowed and granular. „ (D. brevi- folia, var. major, Hook.) — Boggy ponds, Apalachicola, Florida, to South Car- olina (Bosc.). April and May. © or )J. — Scape 6' -15' high. Leaves 2' -3' long. Flowers pale rose-color. 4. D. rotundifolia, L. Rhizoma none ; leaves orbicular, abruptly con- tracted into the hairy petiole ; scape erect, smooth, 6 - 10-flowered ; calyx ovoid; seeds covered with a loose membranaceous coat. — Mossy swamps, Florida and northward. May and June. ® — Scapes 6' -9' high. Leaves 2' long. Flowers Avhite. 5. D. brevifolia, Pursh. Glandular-pubescent throughout ; rhizoma none ; leaves short, wedge-shaped ; scape erect, 3 - 6-flowered ; calyx oval ; seeds ovoid, minutely glandular. — Low sandy pine barrens, Florida to North Carolina. April, (l) — Scapes 3' - 6' high. Leaves £' long. Flowers %' wide, white. 2. DIO1OEA, Ellis. FLY-TRAP. Stamens 10-15. Styles united. Stigmas 5, fimbriate. Capsule 1-celled, opening irregularly. Placenta at the base of the cell, many-seeded. — A smooth perennial herb, with the habit of Drosera. Leaves spreading, on broadly-winged, spatulate petioles, with the limb orbicular, notched at both ends, and fringed on the margins with strong bristles ; sensitive ! Flowers in a terminal umbel-like cyme, white, bractcd. 1. ID. ULUSCipula, Ellis. — Sandy bogs in the pine barrens of North Car- olina and the adjacent parts of South Carolina. April and May. — Scape 1° high, 8 -10-flowered. Flowers 1' wide. — For an interesting account of this remarkable plant, see Curtis's Plants of Wilmington, in the Boston Journal of Natural History, Vol. I. 1834. ORDER 17. PARNASSIACE-&2. (PARNASSIA FAMILY.) Perennial smooth herbs, with ovate or reniform chiefly radical and entire leaves, on long petioles, and large solitary flowers terminating the scape-like, 1-leaved stem. — Sepals 5, persistent. Petals 5, ovate or obo- 4 38 HYPERICACFwE. (ST. JOHN'S- WORT FAMILY.) vate, veiny, imbricated in the bud, deciduous. Fertile stamens 5, alter- nating with the petals : anthers introrse. Sterile ones in sets of 3 - 15 more or less united filaments, placed opposite each petal. Ovary 1-celled, with 3-4 parietal placentae. Stigmas 3-4, sessile, placed over the pla- centae. Capsule loculicidally 3-4-valved at the apex, many-seeded. Seeds anatropous, winged, without albumen. Embryo straight, cylindrical. 1. PABNASSIA, Tourn. GRASS OF PARNASSUS. Characters same as the order. 1. P. Caroliniana, Michx. Leaves broadly ovate or cordate-ovate ; cau- line one near the base of the stem, clasping ; petals oval, sessile, with impressed greenish veins ; sterile stamens by threes, distinct almost to the base, 2-3 times as long as the recurved fertile ones. — Damp soil, Florida and northward. Oc- tober and November. — Stem 12'- 18' high. Flowers 1' wide. 2. P. asarifolia, Vent. Leaves reniform ; cauline one near the middle of the stem, clasping; petals broadly ovate, short-clawed; sterile stamens by threes. — High mountains of North Carolina. August and September. — Flow- ers larger than in No. 1. ORDER 18. HYPERICACE^E. (ST. JOHN'S-WORT FAMILY.) Herbs or shrubs, with opposite entire dotted leaves, without stipules, and regular hypogynous, mostly yellow flowers. — Sepals 4-5, imbricated in the bud, persistent. Petals 4-5, convolute or imbricated in the bud, deciduous. Stamens mostly numerous, and often united at the base into 3-5 sets : anthers introrse. Styles 2-5, often united, persistent. Cap- sule 1-celled, with strictly parietal placentae, or 2 - 5-celled by the meeting of the placentae at the axis, septicidally 2 - 5-valved. Seeds very numer- ous, minute, anatropous, without albumen. Synopsis. * Petals convolute in the bud. 1. ASCYRUM. Sepals and (yellow) petals 4. 2. HYPERICUM. Sepals and (yellow) petals 5- Stamens without interposed glands. * * Petals imbricated in the bud. 3. ELODEA. Sepals and (rose-colored) petals 6. A gland between the sets of stamens. 1. ASCYBUM, L. ST. PETER'S-WORT. Sepals 4, the two outer ones much larger (except No. 5). Petals 4, convolute in the bud, oblique. Stamens numerous. Styles 2-4, distinct or united. Cap- sules 2-4-valved, 1-celled, with 2-4 parietal placentae. — Smooth shrubs with 2-edged branches. Flowers mostly solitary, yellow. * Pedicels 2-bracted : styles shorter than the ovary. 1. A. Crux-Andreas, L. Leaves linear-oblong, obtuse, narrowed at the base ; outer sepals oval, rather obtuse, the inner ones minute ; petals oblong, HYPEIUCACE^E. (ST. JOIIN's-WORT FAMILY.) 39 often acute, approximate in pairs ; styles 2 ; capsule as long as the sepals. — Sterile soil, Florida and northward. June - September. — Shrub 1°- 3° high. Leaves 1' long. Branches opposite. 2. A. Stans, Michx. Leaves oval-oblong, obtuse, closely sessile ; outer sepals orbicular-cordate, obtuse ; the inner ones lanceolate, acute ; petals obovate ; styles 3 or 4 ; capsule shorter than the sepals. — Var. OBOVATUM, Torr. fr Gray, is a dwarf state, with obovate leaves, and obtuse inner sepals. — Damp soil, Florida and northward. July- September. — Shrub 2°- 3° high. Leaves and flowers larger than in No. 1 . * * Pedicels bractless : styles longer than the ovary. 3. A. amplexicaule, Michx. Leaves and outer sepals cordate-ovate, clasping ; inner sepals lanceolate, as long as the outer ones ; petals obovate ; styles 3 ; capsule ovoid, barely half as long as the sepals. — Damp soil near the coast, Florida, Georgia, and westward. April - September. — Shrub 2° - 3° high. Branches many times forking. 4. A. pumilum, Michx. Dwarf ; leaves oblong-ooovatc, obtuse ; outer sepals round-ovate, the inner ones minute ; petals obovate ; pedicels long and slender, reflexcd in fruit ; styles 2, united. — Dry gravelly soil, Florida, Georgia, and westward. March and April. — Stems 3' - 6' long, diffuse. Leaves 4" - 6" long. 5. A. microsepalum, Torr. & Gray. Leaves very numerous, small, oblong-linear, narrowed at the base, obtuse ; flowers somewhat corymbose ; se- pals small and equal. — Flat pine barrens, Florida and Alabama. March and April. — Shrub bushy, 1° - 2° high. Leaves 6"- 9" long. Flowers 1' wide. 2. HYPEKICUM, L. ST. JOHX'S-WORT. Sepals 5, similar. Petals 5, oblique, convolute in the bud. Stamens mostly numerous, and commonly collected in 3 - 5 sets, without intervening glands. Styles 3-5, distinct or united. Capsule 1 - 5-celled. — Herbs or shrubs. Flow- ers mostly cymose, yellow. § 1. Stamens numerous. * Capsules-celled: styles united ': shrubs. 1. H. prolificum, L. Branches 2-edged, the barren ones elongated ; leaves lance-oblong, obtuse or mucronate, narrowed at the base ; cymes axillary and terminal, often few-flowered ; capsule oblong, rarely 4 - 5-celled. — Varies with a more branching stem, smaller and narrower leaves, and smaller and more numerous flowers. (H. galioides, Ph.) — Swamps and banks of rivers in the niddle and upper districts. July and August. — Shrub 2° - 3° high. Leaves l'-2' long, paler beneath. 2. H. Buckleyi, M. A. Curtis. Low, widely branching from the base ; leaves oblong, obtuse, narrowed at the base, paler beneath ; flowers solitary, ter- minal, on rather long and bracted pedicels ; sepals obovate ; style and stamens long and slender. — Mountains of Georgia and North Carolina. — Shrub 8'- 12' high. Flowers 1' wide. 40 HYPERICACE^E. (ST. JOHN'S-WORT FAMILY.) * * Capsule3-celled: styles separate : petals black-dotted : herbs. 3. H. perforatum, L. Stem much branched, slightly 2-edged ; cymes corymbose, many-flowered ; leaves elliptical or linear-oblong, obtuse, with pel- lucid dots ; sepals lanceolate, acute. — Old fields, sparingly naturalized. June- August. — Stem 1°- 2° high, bearing runners at the base. Flowers 1' wide, deep yellow. 4. H. maculatum, Walt. Stem terete, sparingly branched above ; leaves oblong-cordate, obtuse, clasping, marked with pellucid dots ; cymes many-flow- ered, corymbose ; sepals lanceolate, acute ; styles twice as long as the ovary. — Dry pine barrens, Florida to North Carolina. June -August. — Stem 2° -3° high. Leaves I'-lJ' long, rigid. Flowers small. 5. H. COrymbosum, Muhl. Leaves thin, oblong, slightly clasping ; se- pals ovate ; styles as long as the ovary ; otherwise nearly as the last. — Moun- tains of North Carolina, northward and westward. July. — Stem l°-2° high. Leaves l'-2' long. * %• * Capsule 1-celled, or partially 3-celled by the introversion of the placentce. -*- Shrubs : leaves evergreen. •*-*• Cymes leafy. 6. H. fasciculatum, Lam. Lowest leaves obovate, the others narrow- linear, with revolute margins, and numerous smaller ones clustered in the axils ; cymes mostly 3-flowered, lateral and terminal ; sepals like the leaves, mostly shorter than the obovate one-angled petals. — Var. ASPALATHOIDES has very short (2" -3") and wider leaves and sepals, the latter one third as long as the smaller petals. — Margins of pine barren ponds, Florida to North Carolina and west- ward. July and August. — Shrub 2° -6° high. Leaves 6" -12" long, con- spicuously dotted, glossy. Capsule oblong-linear. 7. H. galioides, Lam. Leaves linear-oblanceolate, obtuse, tapering to the base, glossy above, rigid ; those in the axils clustered ; cymes lateral and ter- minal, few-flowered, or the terminal ones compound ; sepals equal, linear, acute, shorter than the petals ; capsules acute. — Pine barrens, Florida to South Caro- lina and westward. Var. ambiguum. (H. ambiguum, Ell.? Torr. $- Gray.) Leaves oblanceo- late, mucronate, pale and thin ; sepals unequal, lanceolate, narrowed at the base, longer than the petals. — River swamps, Florida. Juty and August. — Stems 30-40 high. Branches often elongated. Leaves l'-l|' long. 8. H. myrtifolium, Lam. Leaves cordate-oblong and partly clasping, mostly obtuse, glaucous ; cymes few-flowered, terminal ; sepals leaf-like, ovate, acute, as long as the obovate petals ; stamens very numerous ; capsule conical- ovate. (H. glaucum, Michx.) — Pine barren ponds, Florida to South Carolina and westward. May - September. — Shrub 1° - 2° high, with spreading terete branches. Leaves thick, 1' long. Flowers 1' wide. 9. H. aureum, Bartram. Leaves oblong, mucronate, narrowed at the base, wavy on the margins, glaucous beneath ; flowers very large, mostly solitary at the summit of the 2-edged branches ; sepals leaf-like, shorter than the thick and tardily deciduous petals ; stamens very numerous ; capsule ovate, much smaller IIYPERICACE^E. (ST. JOHN's-WORT FAMILY.) 41 than the calyx. (II. amoenum, Pursh.) — Banks of the Flint River, Georgia to Tennessee, and westward. June -August. — Stem 2° high, diffusely branched. Leaves 2' -3' long. Flowers 2' wide, with recurved orange- colored petals. •*-*• ++ Cymes lea/less, bracted. 10. H. nudiflorum, Michx. Branches 4-angled ; leaves oblong, obtuse, narrowed at the base, paler beneath ; cymes terminal, pedunclecl, 5- 15-flowered ; bracts subulate ; buds globose ; petals oval, twice as long as the oval sepals ; capsule ovate, longer than the calyx. — Low grounds, Florida and northward. July and August, — Shrub 2° -3° high. Leaves thin, i'-2' long. Flowers £' wide. Petals recurved. 11. H. cistifolium, Lam. Branches 2-eclged ; leaves rigid, linear-oblong, sessile ; cymes terminal, compound, many-flowered ; bracts subulate ; buds ovate ; petals spreading, obovate, twice as long as the oblong, unequal sepals ; capsule 3-lobed, ovate, longer than the sepals. (H. rosmarinifolium, Ell.) — Pine barren swamps, near the coast, Florida to South Carolina and westward. July- September. — Shrub 2° - 3° high. Leaves very numerous, 1 ' long. Flow- ers £' wide. Valves of the capsule strongly impressed on the back. 12. H. fastigiatum, Ell. " Branches somewhat compressed ; leaves nar- row-lanceolate, very acute ; corymbs terminal, many-flowered, fastigiate ; styles united. — Pine barrens of Scriven County, Georgia. May -July. — Shrub 3° high. Leaves 3' long, narrowed but connate at the base. Flowers very numer- ous." Elliott. ( * ) -i— -i— Herbs : styles distinct. 13. H. graveolens, Buckl. Stem smooth, terete, nearly simple ; leaves oblong-ovate, obtuse, clasping ; cymes lateral and terminal, many-flowered ; petals oblong-obovate, much longer than the lanceolate acute sepals ; stamens collected in three sets, as long the petals ; styles slender, twice as long as the ovary. — Mountains of North Carolina. July and August. — Stem 2° - 3° high. Leaves 2' long. Flowers large. 14. H. pilosum, Walt. Downy; stem terete, mostly simple, slender; leaves small, lance-ovate, acute, erect, sessile ; cymes compound ; styles short. (II. simplex, Mich.) — Wet pine barrens, Florida to North Carolina and west- ward. July and August. ® ? — Stems l°-2° high. Leaves £' long. Flowers 5" -6" wide. 15. H. angulosum, Michx. Smooth; stem 4-angled, branching ; leaves ovate-lanceolate, acute, sessile; cymes leafy, many-flowered, the branches often simple ; sepals ovate, shorter than the petals, longer than the ovate capsule. — Varies (H. acutifolium, Ell.) with larger shining leaves, compound and nearly leaf- less cymes, and more crowded flowers. — Pine barren ponds (the var. in dry soil), Florida to North Carolina and westward. June - August. — Stem 2° -3° high. Leaves 6"- 12" long. Flowers small. Styles longer than the capsule. § 2. Stamens 5-20 : capsule strictly l-celled : styles separate : annuals. * Flowers in cymes. 16. H. mutilum, L. Stems slender, branching above, 4-angled, leaves oblong or roundish, obtuse, clasping, 5-nerved ; cymes leafy at the base ; sepals 4* 42 CLUSIACE^. (BALSAM-TREE FAMILY.) lanceolate, mostly longer than the small petals, and equalling the (green) ovoid capsule; stamens 6-12. (H. parviflorum, Muhl. H. quinquenervium, Walt.) — Ditches and low grounds, common. June-August. — Stem 1° high. Branches of the cyme filiform. Flowers very small, remote. 17. H. Canadense, L. Stems simple or branched, 4-anglod ; leaves lin- ear or linear-lanceolate, the upper ones acute, sessile ; sepals lanceolate, acute, longer than the petals, shorter than the oblong (brown) capsule. — Wet sandy places, Florida and northward. June -Oct. — Stem 4' -12' high, with the branches erect. Flowers small, copper-yellow. Stamens 5 -10. * * Flowers scattered on the slender branches : leaves minute. 18. H. Sarothra, Michx. Stem much branched ; branches erect, filiform ; leaves minute, subulate, bract-like; flowers small, sessile; sepals scarcely half as long as the lanceolate purple capsule. — Sandy old fields. Florida and north- ward. June - August. — Stems 6' - 12' high. Stamens 5 - 10. 19. H. Drummondii, Torr. & Gray. Stem much branched ; leaves lin- ear or the lower ones oblong, acute, appressed ; sepals barely shorter than the ovate capsule; flowers pedicelled. — Dry barren soil, Florida, South Carolina, and westward. July and August. — Stems and branches stouter than the last. Stamens 10-20. 3. ELODEA, Adans. Sepals 5. Petals 5, equal-sided, imbricated in the bud. Stamens mostly 9, and united in sets of three, with a scale-like gland between each set. Styles 3, distinct. Capsule 3-celled, 3-valved, many-seeded. Smooth perennial herbs. Flowers rose-color, in contracted lateral and terminal cymes. 1. E. Virginica, Nutt. Leaves oblong or oval, cordate, clasping, con- spicuously dotted beneath ; stamens united below the middle.. — Swamps, Florida and northward. July and August. — Stems terete, l°-2° high. 2. E. petiolata, Pursh. Leaves oblong, narrowed at the base, short-peti- oled, obscurely dotted beneath; stamens united above the middle. — "With the preceding. July and August. — Stem 2° high. ORDER 19. CL,USIACE^E. (BALSAM-TREE FAMILY.) Trees or shrubs, with resinous yellow juice, opposite coriaceous entire dotless leaves articulated with the stem, and regular hypogynous flowers. Sepals 3-6. Petals 4-9. Stamens mostly numerous, distinct or variously united. Ovary 1 - many-celled, few - many-ovuled. Style single, often none. Fruit capsular, baccate, or drupaceous. Seeds without albumen. Embryo straight. Cotyledons thick, distinct or united. 1. CLITSIA, L. Calyx 2-bracted, of 6 imbricated, colored sepals. Petals 4-9. Stamens nu- merous, the filaments united at the base into a thick and fleshy tube. Ovary PORTULACACE^. (PURSLANE FAMILY.) 43 5-15-cellcd. Ovules numerous, fixed to a central column. Stigma large, radiate-peltate. Capsule coriaceous, globose-angled, 5-15-celled; the valves separating from the central column at maturity. Seeds numerous, ovate. — Par- asitical tropical trees, with thick, opposite, entire and shining leaves, and chiefly polygamous, cymose, showy flowers. 1. C. flava, L. Leaves short-stalked, obovate, obtuse or emarginate, finely veined ; flowers polygamous, single or by threes, on short axillary and terminal peduncles; sepals rounded ; petals 4, oval, thick, yellow and unequal; stamens short and thick; stigma about 12-rayed; capsule pear-shaped, 12-seeded, the seeds imbedded in soft pulp. — South Florida. — A small tree. 2. CANELLA, P. Brown. Sepals 3, rounded, concave, imbricated in the bud, persistent. Petals 5, hy- pogynous, oblong, convolute in the bud, deciduous. Stamens united into a tube. Anthers 15 (21 Endl.}, adnate, linear. Ovary 3-celled. Style cylindri- cal. Stigmas 3. Berry globose, 1 - 3-celled, mostly 2-seeded. Seeds globose- reniform. Embryo minute, in fleshy albumen. — A large tree. Leaves alter- nate, near the ends of the branches, obovate, emarginate, glabrous, on short petioles. Racemes compound, shorter than the leaves, terminal. Pedicels 1- flowered. Flowers small, purple. (The proper place of this genus is undeter- mined, but it has been referred to this order.) 1. C. alba, Swartz. — South Florida. August. — Tree aromatic. Leaves 2' long. Berry black. ORDER 20. PORTTJJLACACEy~E. (PURSLANE FAMILY.) Succulent plants, with entire leaves and regular hypogynous or peri- gynous flowers. Sepals 2-5. Petals 3-6, imbricated in the bud, some- times wanting. Stamens as many as the petals and opposite them, or indefinite. Styles 3 -6, mostly united below, stigmatic along the inside. Capsule 1 - 5-celled, few - many-seeded. Seeds campylotropous, erect from the base of the cell, or attached to a central placenta. Embryo slen- der, curved around mealy albumen. Synopsis. * Sepals 2. Petals 5 -6. 1. CLAYTONIA. Petals and stamens 5. Capsule 3-valved, 3- 6-seeded. 2. TALINUM. Petals 5. Stamens 10-30. Capsule 3-valved, many-seeded. 3 PORTULACA. Petals 5 -6. Stamens 8 -20. Capsule circumscissile. * * Sepals 5. Petals none. 4. SESUVIUM. Stamens 5 -60, inserted on the calyx. Capsule circumscissile. 1. CLAYTONIA, L. SPRING-BEAUTY. Sepals 2, free, persistent. Petals 5, hypogynous. Stamens 5, inserted on the claws of the petals. Style 3-cleft. Capsule 1-celled, 3-valved, 3 -6-seeded. — 44 PORTULACACE^E. (PURSLANE FAMILY.) Smooth herbs, with a simple stem bearing two opposite leaves, and terminated with a loose raceme of pale rose-colored, veiny flowers. 1. C. Virginica, L. Leaves long (3'- 6'), linear, acutish ; petals mostly emarginate, but sometimes acute. — Damp rich soil in the upper districts. March. — Plant 4' - 10' long. 2. C. Caroliniana, Michx. Leaves short (l'-2'), ovate-lanceolate or oblong, tapering at the base, obtuse ; petals obtuse. — Mountains of North Caro- lina and northward. March and April. — Smaller than the last. 2. TALINUM, Adans. Sepals 2, free, deciduous. Petals 5, hypogynous. Stamens 10-30. Style 3-lobed. Capsule 3-celled at the base, 3-valved, many-seeded. — Smooth and fleshy herbs, with alternate leaves and cymose flowers. 1. T. teretifolium, Pursh. Stem thick, leafy; leaves linear-cylindrical ; cymes on long peduncles ; petals purple, fugacious. — Rocks, North Carolina and northward. June - Aug. 1J. — Stems 2' - 4' long. Peduncles 5' - 8' long. 3. PORTULACA, Tourn. PURSLANE. Sepals 2, united and cohering with the ovary below, the upper portion circum- scissile and deciduous with the upper part of the capsule. Petals 4-6, inserted with the 8-20 stamens on the calyx. Style 3 - 8-parted. Capsule globose, 1 -celled, many-seeded. — Low, fleshy herbs, with terete or flat, mostly alternate leaves, and fugacious yellow or purple flowers. 1 . P. Oleracea, L. Leaves flat, cuneate, naked in the axils ; flowers yel- low ; stamens 10-12. — Cultivated ground everywhere. — Stem prostrate. 2. P. pilosa, L. Leaves linear, obtuse, with a tuft of hairs in the axils ; flowers purple ; stamens about 20. — Key West, Florida. 4. SESUVIUM, L. SEA PURSLANE. Sepals 5, free, united at the base, persistent, colored within. Petals none. Stamens 5, or numerous, inserted on the calyx. Styles 3-5. Capsule 3-5- celled, many-seeded, circumscissile. — Prostrate and fleshy maritime plants, with nearly opposite and entire leaves, and axillary purplish flowers. 1. S. portulacastrum, L. Leaves lanceolate and oblong, acute, on winged and clasping petioles ; flowers pedicelled ; sepals fleshy, lanceolate, mu- cronate, purple within ; stamens numerous. — Sandy or muddy places along the coast, Florida and northward. May - December. 1J. — Stems diffuse, creep- ing, forming mats which are sometimes 6° in diameter. 2. S. pentandrum, Ell. Leaves spatulate-obovate, obtuse, on slightly winged and clasping petioles ; flowers sessile ; sepals ovate-lanceolate, stamens 5. — Muddy saline coves, Florida to North Carolina. May - November. (1) ? — Stems (often erect) and flowers smaller than in the preceding. CARYOPHYLLACE^E. (PINK FAMILY.) 45 ORDER 21. CARYOPHYLLACE^E. (PINK FAMILY.) Herbs with tumid joints, entire opposite or whorled, often connate leaves, and regular hypogynous or perigynous cymose flowers. Stipules dry and searious, or none. — Sepals 4-5, imbricated in the bud, persistent. Petals 4-5, often stamen-like or none. Stamens as many as the sepals and op- posite them (except Mollugo), or twice as many, or by abortion fewer. Ovary free, 1 - 5-celled, with the amphitropous or campylotropous ovules attached to a central placenta. Styles 2-5, distinct or partly united, stigmatic along the inner side. Fruit valvate or indehiscent, 1 - many- seeded. Embryo curved, or forming a ring around mealy albumen. Synopsis. TRIBE I. HjL.ECEBRE^E. Sepals distinci or united below. Petals often stamen- like or wanting. — Leaves with scarious stipules. * Fruit indehiscent, 1-seeded (utricle). 1. PARONYCHIA. Sepals united at the base. Stamens inserted on the base of the sepals. • Style long. Utricle included. 2. ANYCHIA. Sepals distinct. Stamens inserted on the base of the sepals. Style very short. Utricle partly exserted. 3. SIPIIONYCHIA. Sepals united into a tube below the middle. Stamens inserted on the tube of the calyx. Style long. * * Fruit valvate, few - many-seeded. •i- Leaves opposite. 4. STIPULICIDA. Stem-leaves minute ; the lowest spatulate. Flowers in terminal clusters. 5. SPERGULARIA. Leaves all linear. Flowers solitary, axillary. •i- •*- Leaves whorled. 6. SPERGULA. Styles 5. Stamens 5 - 10. Capsule 5-valved. 7. POLYCARPON. Styles 3. Stamens 3 -5. Capsule 3- valved. TRIBE II. MOI^IiUGIlVE^E. Stamens alternate with the sepals, when of the same number ; when three, alternate with the cells of- the ovary. — Stipules none. 8. MOLLUGO. Capsule 3-celled. Leaves whorled. TRIBE III. ALSINEJE. Sepals separate or nearly so. Stamens opposite the sepala when of the same number. Ovary sessile. — Stipules none. * Valves of the capsule as many as the styles. 9. S AGIN A. Styles and valves 4-5. 10. ALSINE. Styles and valves 3. * * Valves or teeth of the capsule twice as many as the styles. 11. ARENARIA. Valves of the capsule 2-4, each soon 2-cleft- Petals entire. 12. STELL ARIA. Valves of the capsule 6 - 10. Petals 2-cleft. 13. CERASTIUM. Capsule 8-10-toothed. TRIBE IV. SILENE^E. Sepals united into a tube. Petals and stamens inserted on the stipe of the ovary. — Stipules none. 14. SILENE. Styles 3. Capsule 6- toothed. 15. SAPONARIA. Styles 2. Capsule 4 -toothed. 16. AGROSTEMMA. Styles 5. Capsule 5-toothed. 46 CARYOPHYLLACE^E. (PINK FAMILY.) 1. PAKONYCHIA, Tourn. Sepals 5, united at the base, concave and mucronate or awned at the apex. Petals bristle-like or tooth-like, alternate with the 5 stamens, and inserted with them on the base of the calyx. Style long, 2-cleft. Utricle included. Seed resupinate. Radicle superior or ascending. — Low herbs, with conspicuous sil- very stipules, and minute flowers in loose or compact cymes. 1. P. dichotoma, Nutt. Smooth; stems slender, erect; leaves linear- subulate ; those of the barren stems imbricated ; cymes fastigiate, diffuse ; se- pals lineai*, 3-ribbed, slender-pointed; petals minute, bristle-like. (Anychia argyrocoma, Ell) — Rocks on the mountains of North Carolina, and westward. July - Nov, 1J. — Stems 6' - 1 2' high. 2. P. argyrocoma, Nutt. Minutely pubescent ; stems tufted, ascending ; leaves linear, acute ; cymes capitate, the flowers concealed by the large silvery stipules ; sepals lanceolate, hairy, slender-pointed ; petals minute, tooth-like. — Mountains of Georgia and North Carolina. July -Sept. 1J. — Stems 6' -10' high. Stipules nearly as long as the leaves. 3. P. herniarioides, Nutt. Rough-pubescent ; stems prostrate, diffusely- branched ; leaves oval or oblong, mucronate ; flowers axillary, solitary, sessile ; sepals subulate, with a short and spreading point. (Anychia herniarioides, Michx.) — Dry sand ridges in the middle districts, Georgia to North Carolina. July - Oct. CD — Stems 4' - 6' long, Leaves 3" - 4" long. 4. P. Baldwin!!. Finely pubescent ; stems prostrate, diffusely-branched ; branches alternate, one-sided, filiform; leaves lanceolate or ovate-lanceolate, acute, narrowed into a petiole ; cymes diffuse, naked ; sepals oblong, 3-ribbed, ciliate, short-pointed ; petals bristle-like, as long as the stamens ; utricle equal- ling or rather longer than the sepals; style 2-cleft to the middle. (Anychia Baldwinii, Torr. $* Gray.) — Dry sandy soil, Florida and Georgia. July -Oct. © and (2) — Stems l£°-3° long. Upper leaves sometimes alternate. 2. ANYCHIA, Michx. Sepals 5, distinct, slightly mucronate at the apex. Petals none. Stamens 2-3, inserted on the base of the calyx. Style very short. Stigmas spreading. Utricle exserted. Seed erect. Radicle inferior. — An erect slender annual, with forking setaceous spreading branches. Leaves thin, oblong, obtuse, nar- rowed at the base. Flowers minute, solitary or clustered in the forks of the branches, greenish. 1. A. dichotoma, Michx. (Queria Canadensis, L.) — Barren hills, South Carolina and northward. July and August. — Stem 4' - 10' high. 3. SIPHONYCHIA, Torr. & Gray. Sepals 5, united to the middle, concave and petal-like above, obtuse or mu- cronate. Petals 5, bristle-like, inserted with the 5 stamens on the throat of the calyx. Style slender, 2-cleft. Utricle included. Seed resupinate. Radicle superior. — Erect or diffusely prostrate herbs. Cymes dense-flowered. Flowers white. CARYOPHYLLACE^E. (PINK FAMILY.) 47 1. S. Americana, Torr. & Gray. Stems prostrate, diffuse, pubescent in lines; leaves lanceolate, narrowed at the base; the radical ones larger and crowded ; flowers obovate, solitary in the forks of the stem, and clustered at the end of the branches ; sepals rounded and incurved at the apex, the tube bristly with hooked hairs; petals minute. (Herniaria Americana, Nutt. Paronychia urceolata, Shuttl ) — Sandy banks of rivers, Florida to South Carolina, and westward. June -Oct. (l) or (2) — Stems l°-3° long. Leaves sometimes falcate and incrustcd with brownish particles. Stipules small. 2. S. diffusa, n. sp. Pubescent; stems prostrate, diffusely-branched; leaves lanceolate, obtuse, narrowed at the base ; flowers small, in compact, rectangular cymes, terminating all the branches ; sepals linear, slightly concave and mucro- nate at the apex, the tube bristly with hooked hairs ; petals bristle-like. — Dry sandy pine barrens, Florida. June -Oct. Q) — Stems 1° long. Stipules con- spicuous, on young plants half as long as the leaves, at length 2-partcd. Cymes very numerous. 3. S. erecta, n. sp. Stems smooth, clustered, erect, rigid, mostly simple ; leaves erect, linear, acute, pubescent on the margins, those of the barren stems imbricated ; cyme compound, rectangular, fastigiate, compact ; sepals lanceolate, smooth, acutish, or obscurely mucronate at the apex, the tube smooth and fur- rowed ; petals bristle-like, half as long as the stamens. — Sands along the west coast of Florida. June -Nov. 1J. — Root Avoody. Steins G'- 12' high. Stip- ules half as long as the leaves. 4. S. Rugelii. Annual; stem erect, successively forking, clothed with a short and rather dense pubescence, as also the leaves and bracts ; leaves oblance- olate, abruptly pointed, shorter than the internodes, the upper ones linear ; stip- ules |-£ as long as the leaves, soon 2-4-parted; cymes numerous, terminal, rather loosely flowered ; calyx-tube short, pubescent, the linear-lanceolate divis- ions conspicuously mucronate, white ; petals bristle-like ; style included. (Pa- ronychia Rugelii, Shuttl.) — East Florida. — Stems 1° high, at length diffuse ? 4. STIPULICIDA, Michx. Sepals 5, emarginate, white-margined. Petals 5, spatulate, 2-toothed near the base, fonger than the sepals, withering-persistent. Stamens 3, opposite the inner sepals. Style very short, 3-parted. Capsule 1-celled, 3-valvcd, many- seeded. — A small perennial, with an erect forking stem. Stem-leaves minute, subulate, with adnate pectinate stipules. Radical leaves spatulate, clustered, growing from a tuft of bristly stipules. Flowers white, in terminal clusters. 1. S. setacea, Michx. — Low sandy pine barrens, Florida to North Caro- lina. April - June. — Stem 3' - 6' high, the branches spreading and curving. 5. SPERGULARIA, Pcrs. Sepals 5. Petals 5, oval, entire. Stamens 2-10. Styles 3-5. Capsule 3 - 5-valved ; the valves when 5, alternate with the sepals. — A low maritime htrb, with opposite fleshy leaves, and conspicuous scarious stipules. Flowers axillary, solitary, rose-colored. 48 CARYOPHYLLACE.E. (PINK FAMILY.) 1. S. rubra, Pers. — Sands or marshes along the coast, Florida and north- ward. April and May. £D — Stems prostrate, much branched. Leaves linear, longer than the joints. Seed with or without a membranaceous margin. 6. SPERGULA, L. SPURREY. Sepals 5. Petals 5, entire. Stamens 5 or 10. Styles 5. Capsule 5-valved, the valves opposite the sepals. Embryo forming a ring around the albumen. — Leaves Avhorled. Flowers cymose, white. 1. S. arvensis, L. Stem erect; leaves fleshy, narrow-linear, several in a whorl; cyme loose, long-peduncled ; fruiting pedicels reflexed ; stamens 10; seeds rough. — Cultivated fields, Florida and northward : introduced. (J) . 7. POLYCARPON, L. Sepals 5, carinate. Petals 5, emarginate, shorter than the sepals. Stamens 3-5. Styles 3, very short. Capsule 3-valved. — Low annuals, with whorled leaves, and minute flowers, in terminal cymes. 1. P. tetraphyllum, L. Stems (3' -6') forking, diffuse; leaves spatti- late-obovate, the lower ones 4 in a whorl, the upper opposite; sepals acute; stipules conspicuous. — Near Charleston. Introduced. May and June. 8. MOLLUGO, L. Sepals 5. Petals none. Stamens 5 and alternate with the sepals, or 3 and alternate with the cells of the ovary. Styles 3, short. Capsule 3-valved, 3-cclled, many-seeded. — Prostrate diffusely-branched annuals. Leaves whorled. Flow- ers white, on slender axillary peduncles. 1. M. verticillata, L. Smooth; leaves spatulatc-lanceolate, unequal, in whorls of 4 - 8 ; fruiting peduncles reflexed ; stamens 3. — Cultivated ground, common. Introduced. May -August. 9. SAGI3STA, L. Sepals 4-5. Petals 4-5, entire, or wanting. Stamens 4 - 10. Styles 4-5, alternate with the sepals. Capsule 4 - 5-valved ; the valves entire, opposite the sepals. — Small herbs, with filiform forking stems, subulate leaves, and solitary flowers. 1. S. Elliottii, Fenzl. Smooth; stems erect or ascending, tufted ; pedun- cles erect; petals and sepals 5, equal, obtuse; stamens 10. (Spergula dccum- bens, Ell.) — Damp cultivated ground, common. April -June. (1) — Stems 2' -6' high. Peduncles 2-3 times as long as the sharp-pointed leaves. 10. ALSINE, Tourn. Sepals 5. Petals 5. Stamens 10. Styles 3. Capsule 1-celled, 3-valved, the valves entire, opposite the inner sepals. — Low slender herbs, with linear or sub- ulate leaves, and white cymose or solitary flowers. CARYOPHYLLACE^E. (PINK FAMILY.) 49 1. A. squarrosa, Fenzl. Stems tufted; leaves subulate, rigid, those of the glandular flowering stems distant, of the sterile stems imbricated, with spreading tips ; sepals ovate, obtuse, shorter than the capsule. (Arcnaria squar- rosa, Michx.) — Dry sand-hills, West Florida and northward. April and May. 1J. — Stems 6'- 10' high. Cymes few-flowered. Pedicels rigid. 2. A. glabra, Gray. Smooth ; stems filiform, sparingly branched ; leaves tender, narrow-linear, obtuse, spreading ; cyme few-flowered, spreading ; sepals oblong, obtuse, faintly 3-ribbed, as long as the capsule. ( Arenaria glabra, MicJix.) — Mountains of North Carolina. July. ty ? — Stems tufted, 4' - 6' high. Cymes leafy. Pedicels setaceous. Leaves ^'-1' long. 3. A. patula, Gray. Minutely pubescent; stem filiform, diffusely branched from the base; leaves narrow-linear, spreading; cyme spreading, few -many- flowered ; pedicels very slender ; petals spatulate, emarginate, twice the length of the lanceolate acute 3-5-nerved sepals. (Arenaria patula, Michx.) — Rocks around Knoxville, Tennessee, and northward. — Stems 6'- 10' high. 4. A. Michauxii, Fenzl. Smooth ; stems tufted, erect or diffuse, straight ; leaves linear-subulate, erect, spreading or recurved, much clustered in the axils ; cymes spreading or contracted ; petals oblong-obovate, twice as long as the rigid ovate acute 3-ribbed sepals. (Arenaria stricta, J^fichx.) — Rocks and barren soil, Georgia and northward. May and June. — Stems 3' - 10' high. 5. A. brevifolia. Stems smooth, not tufted, erect, filiform, simple, 2-5-flowercd; leaves minute (l"-2"), erect, lance-subulate; sepals oblong, obtuse, as long as the capsule ; petals twice as long as the sepals. (Arenaria brevifolia, Nutt.) — Rocks in the upper districts of Georgia. (T) — Stems 2' -4' long, bearing 3 or 4 pairs of leaves. Flowers small, on filiform peduncles. 11. ARENARIA, L. SANDWORT. Petals 1-5, or none. Styles 2-4. Capsule opening above by as many valves as there are styles, each valve soon splitting into two pieces. Otherwise like Alsine. 1. A. diffusa, Ell. Downy; stem elongated, prostrate, alternately short- branched ; leaves lanceolate ; peduncles longer than the leaves, lateral, re- flexed in fruit ; petals 1-5, shorter than the sepals, often wanting. (Stellaria elongata, Nutt. Micropetalon lanuginosum, Pers.) — Shady banks, Florida to North Carolina and westward. May- October. 1J. — Stems 1° -4° long. 2. A. serpyllifolia, L. Downy; stems diffusely branched; leaves small, ovate, acute, the lowest narrowed into a petiole ; flowers cymose ; petals much shorter than the lanceolate acuminate sepals. — "Waste places, Florida and north- ward. Introduced. April and May. © — Stems 6'- 12' long. Leaves £' long. 12. STELLARIA, L. CHICKWEED. STARWORT. Sepals 4 - 5. Petals 4-5, 2-cleft, or 2-parted. Stamens 3-10. Styles 3-5, opposite the sepals. Capsule 1 -celled, opening by twice as many valves as there are styles, many-seeded. — Stems weak. Flowers white, on terminal peduncles, becoming lateral in fruit. 5 50 CARYOPHYLLACE^E. (PINK FAMILY.) 1. S. pubera, Michx. Perennial; stems erect or diffuse, forking, hairy in lines ; leaves oblong, acutish, narrowed at the base, sessile ; petals longer than the sepals. — Shady rocks in the upper districts and northward. April and May. — Stems 6' - 12' high. Flowers showy. 2. S. media, Smith. Annual; steins prostrate, forking, pubescent in lines; leaves ovate or oblong, acute, the lower ones petioled ; petals shorter than the sepals. — Yards and gardens. March and April. Introduced. 3. S. prostrata, Baldw. Smooth or nearly so ; stems forking, prostrate ; leaves ovate, acute, all on slender petioles, the lower ones often cordate ; petals twice as long as the sepals ; seeds rough-edged. — Damp shades, Georgia, Flor- ida, and westward. March and April. Qj — Stems l°-2° long. Petiole mostly longer than the limb. 4. S. uniflora, "Walt. Smooth ; stems erect from a prostrate base ; leaves remote, narrow-linear, sessile; peduncles very long (2' -4'), erect; petals obcor- date, twice as long as the calyx. — lliver swamps, South Carolina and North Carolina. May. ® ? — Stems 6' -12' high. Leaves 1' long. — Perhaps a species of Alsinc. 13. CERAlSTIUM, L. MOUSE-EAR. Sepals 4 -5. Petals 4 -5, obcordate or 2-cleft. Stamens 10. Styles 4-5. Capsule cylindrical, 8 - 10-toothed, many-seeded. — Herbs. Flowers Avhite, soli- tary or cymose, peduncled. * Petals not longer than the sepals. 1. C. VUlgatlim, L. Villous and somewhat clammy ; stems ascending ; leaves oval, remote, the lowest obovatc ; cymes crowded in the bud, spreading in fruit ; sepals lanceolate, acute, as long as the peduncles, and half as long as the slender capsule. — Fields, Florida and* northward. April and May. (J) — Stems 6' -12' high. 2. C. viSGOSUm, L. Hairy and clammy ; stems ascending ; leaves lance- oblong, obtuse, the lowest wedge-shaped ; cymes loose in the bud ; sepals oblong- ovate, obtuse, shorter than the peduncles. — Fields, Florida and northward. April and May. ® — Flowers and capsules larger than in No. 1. * * Petals longer than the sepals. 3. C. arvense, L. Hairy or downy ; stems numerous, naked above ; leaves narrowly or broadly lanceolate ; cymes rather few-flowered ; petals obcordate, twice as long as the oblong sepals. — Rocky or dry soil, chiefly in the upper districts. May and June. 1J. — Stems G'- 12' high. Leaves seldom 1' long. Flowers ^' wide. Capsule rather longer than the calyx. 4. C. nutans, Raf. Clammy-pubescent ; stems tufted, furrowed ; leaves lanceolate ; cymes ample, many-flowered ; petals oblong, emarginate, rather longer than the oblong sepals. — Low grounds, North Carolina and Tennessee, and northward. (3) — Stems 1° high. Peduncles long. Capsule curved, three times as long as the calyx. CARYOPHYLLACEvE. (PINK FAMILY.) 51 14. SILENE, L. CATCHFLY. Sepals united into a 5-toothed tube. Petals 5, long-clawed, inserted with the 10 stamens on the stipe of the ovary, commonly crowned with two scales at the base of the limb. Styles 3. Capsule 1-celled, or 3-cellcd at the base, opening by 6 teeth, many-seeded. — Leaves mostly connate. Flowers cymose, often showy. * Perennials : flowers showy. -»- Petals gash-fimbriate, crownless. 1. S. Stellata, Ait. Leaves in whorls of four, lance-ovate, acuminate, the uppermost opposite ; flowers white, in a large spreading panicle ; calyx in- flated, ball-shaped. — Dry woods in the upper districts, and northward. June- August. — Stems 2° -3° high, downy, branching above. *2. S. ovata, Pursh. Eough-pubescent ; leaves largo (4' -5'), opposite, oblong-ovate, acuminate ; flowers white, in a contracted lanceolate panicle ; calyx tubular. — Mountains of Georgia and Carolina. July. — Stems stout, 2° -4° high. 3. S. Baldwin!!, Nutt. Villous ; stems low, slender, bearing runners at the creeping base ; leaves opposite, spatulate ; the upper ones oblong, sessile ; cymes few-flowered ; flowers very large, white or pale rose-color, on slender ped- icels ; calyx tubular. — Low shady woods, Georgia and Florida. April and May. — Stems 6' - 12' high. Leaves thin. Flowers 2' wide. •»- H- Petals emarginate or 2-cleft, crowned. 4. S. Virginica, L. Clammy-pubescent; leaves abruptly pointed, the low- est ones clustered, spatulate-obovate, on fringed petioles, the upper small, remote, lanceolate, sessile ; cymes loosely few-flowered ; calyx tubular-club-shaped, ob- long and nodding in fruit ; petals crimson, lanceolate, 2-cleft. — Rich open woods, chiefly in the upper districts. June and July. — Stems l°-2° high. Flowers 1' wide. 5. S. regia, Sims. Viscid-pubescent and roughish ; stem tall (3° - 4°) and erect, branched; leaves ovate -lanceolate, the upper ones acuminate; flowers large, bright scarlet, short-stalked, clustered and forming a strict panicle ; calyx long, cylindrical, striate, dilated in fruit ; petals oblanceolate, generally entire ; stamens and style exserted. — Prairies of Alabama and westward. July. 6. S. rotundifolia, Nutt. Hairy and viscid; stems weak, decumbent, branched; leaves thin, roundish, abruptly acuminate at each end, the lowest obovate ; flowers few, large, bright scarlet ; calyx cylindrical ; petals 2-cleft, with the lobes cut-toothed. — Shady rocky banks, Tennessee and northward. June- August. — Stems 2° long. Flowers showy. 7. S. Pennsylvanica, Michx. Clammy-pubescent; stems low, clus- tered ; lowest leaves spatulate-obovate, the upper lance-oblong, mostly obtuse ; cymes dense-flowered ; calyx club-shaped, erect ; petals white or rose-color, ob- ovate, emarginate or entire. — Rocky hills, chiefly in the upper districts and northward. March and April. — Stems 6' - 12' high. 52 MALVACEAE. (MALLOW FAMILY.) * * Annuals : flowers small, crowned, expanding at night. 8. S. Antirrhina, L. Stem slender, smoothish, clammy below the upper joints ; leaves linear, acute, sessile, the lowest lanceolate, nan-owed into a petiole ; flowers panicled ; calyx smooth ; petals obcordate, rose-colored. — Dry old fields, Florida and northward. May and June. — Stems 6' - 2° high, simple or branched. Flowers minute. 9. S. quinquevulnera, L. Hairy ; stem branching ; leaves spatulate, the upper ones linear; flowers in 1-sided racemes; calyx hairy; petals rounded, entire, pink or crimson with a paler border. — Near Charleston. Naturalized. — Stem 1° high. 15. SAPONARIA, L. SOAPWORT, Calyx tubular, terete, 5-toothed. Petals long-clawed. Stamens 10. Styles 2. Capsule sessile or short-stiped, 1-celled, or 2-celled at the base, 4-toothed at the apex. — Cymes dense-flowered. 1. S. officinalis, L. Perennial; stems stout, erect, smooth ; leaves ovate, connate, strongly 3-ribbed ; petals crowned, white or rose-color, mostly double. — Waste places. Naturalized. — Stems 1° - 2° high. 16. AGROSTEMMA, L. CORN-COCKLE. Calyx tubular, with 5 elongated linear deciduous lobes. Petals 5, entire, crownless. Stamens id. Styles 5. Capsule 1-celled, 5-toothed. — Annual or biennial pubescent herbs, with linear leaves, and showy purple flowers on elon- gated peduncles. 1. A. GithagO, L. Plant (l°-2° high) whitened with long appressed hairs ; stem forking ; petals obovate, emarginate, shorter than the lobes of the calyx. — Grain fields. Introduced. June and July. (J) — Peduncles 4' - 6' long. Flowers 1' wide. ORDER 22. MAL.VACEJE. (MALLOW FAMILY.) Mucilaginous herbs or shrubs, with palmately veined alternate stipulate leaves, and regular monadelphous flowers on jointed peduncles. — Sepals 5, united at the base, valvate in the bud, persistent, often with a calyx- like involucel. Petals 5, convolute in the bud. Stamens numerous, united into a column which is continuous with the claws of the petals: anthers 1-celled, opening transversely. Ovaries united into a ring, or forming a several-celled capsule. Styles separate or united. Seeds kidney-shaped. Albumen scarce or none. Embryo large, curved, Ivith leafy cotyledons. Pubescence commonly stellate. Pollen grains hispid, Synopsis. TRIBE I. MA1.VE.33. — Carpels as many as the stigmas, 1 -few-seeded, disposed in a circle around a central axis, separating at maturity from the axis and from each other. An- thers borne at the apex of the column. MALVACEAE. (MALLOW FAMILY.) 53 * Carpels 1 -seeded. ••- Stigmas occupying the inner face of the styles. 1. MALVA. Carpels beakless. No process within. 2. CALLIRRHOJE. Carpels beaked, and bearing a dorsal process above the seed within. •t- -i- Stigmas capitate. 3. MALVASTRUM. Involucel 2 - 3-leaved. Ovule peritropous-ascending. Radicle inferior. 4. SIDA. Involucel none. Ovule resupinate-pendulous. Radicle superior. * * Carpels 2 -few-seeded. 5. ABUTILON. Carpels 1-celled. Involucel none. 6. MODIOLA. Carpels transversely 2-celled. Involucel 3-leaved. TRIBE. II. TJRENE-^E. —Carpels half as many as the stigmas, separating at maturity. Anthers borne above the middle of the column. 7. PAVONIA. Carpels 5, dry, 1-seeded. Involucel 5 - 15-leaved. TRIBE III. IIIBISCEJE. — Carpels as many as the stigmas, united and forming at ma- turity a loculicidal capsule. Column bearing the anthers throughout, or from above the middle. 8. KOSTELETZKYA. Cells of the depressed capsule 1-seeded. 9. HIBISCUS. Cells of the globose or oblong capsule few - many-seeded. 1. MALVA, L. MALLOW. Involucel 3-leaved, persistent. Petals obcordate. Styles 9 - 20, filiform, stig- matic on the inner face. Carpels broadly reniforra, beakless, 1-seeded, indehis- cent, disposed in a circle around the central axis, from which they separate at maturity. Embryo nearly annular. Radicle inferior. — Herbs. Leaves round- ed. Flowers axillary, not yellow. 1. M. rotundifolia, L. Stems several, prostrate; leaves long-pctioled, round-cordate, crenate and crenately-lobed ; flowers single or clustered, Avhite veined with purple ; carpels even. — Around dwellings. Introduced. Ij. . 2. CALLIRRHOE, Nutt. Involucel 1 - 3-lcaved and persistent, or none. Petals wedge-shaped, entire, or crenate. Styles as in Malva. Carpels numerous, with a short and naked beak, and a ligulate dorsal process below the beak within. Embryo curved. Radicle inferior. — Perennial herbs. Leaves palmatcly-lobed, or angled. Flow- ers showy, purple or whitish. 1. C. triangulata, Gray. Rough-pubescent; stem ascending from a perpendicular rhizoma, branching above; leaves triangular, coarsely and une- qually crenate, the lowest ones long-petioled and cordate, the upper 3 - 5-lobcd ; flowers approximate, panicled, longer than the pedicels ; involucel 3-leaved, the leaves linear ; carpels at length 2-valved. (Malva triangulata, Leavenworth.) — Dry soil in the upper districts of Alabama to North Carolina and northwestward. July. — Stem 2° - 3° high. Flowers 1 ' - 1 £' wide, purple. 2. C. Papaver, Gray. Rough with scattered appressed and rigid hairs ; stems low, simple ; leaves 3 - 5-parted ; the lobes oblong or lanceolate, toothed or entire ; flowers few, solitary, axillary, long-peduncled ; involucel 1 - 3-leaved, or none; petals finely crenate ; carpels indehiscent. — Rich open woods. Georgia, 5* 54 MALVACEAE. (MALLOW FAMILY.) Florida, and westward. May - September. — Stems 1° high. Flowers purple, 2-' wide, on peduncles which are sometimes 1° long. 3. C. alcaeoid.es, Gray. Strigose-pubescent ; stems slender (1° high); lower leaves triangular-cordate, incised ; the upper 5 - 7-parted, laciniate, the uppermost divided into linear segments ; flowers corymbose, on slender pedun- cles (rose-color or white) ; involucel none ; carpels obtusely beaked, crested and strongly wrinkled on the back. (Sida alcasoides, Michx.) — Barren oak lands, Tennessee. 3. MALVASTRUM, Gray. Involucel 1-3-leaved or none. Styles 5-20. Stigmas capitate. Carpels beaked or beakless, 1 -seeded. Seed ascending. Embryo curved or annular. Radicle inferior. — Herbs or shrubby plants, rough with rigid hairs. Flowers yellow. 1 . M. tricuspidatum, Gray. Perennial or shrubby ; stem branching ; leaves ovate or oblong-ovate, serrate, acute, petioled ; stipules lanceolate ; flow- ers in leafy spiked racemes ; petals obliquely truncated ; carpels 10-12, more or less distinctly 3-toothed or awned at the apex. — South Florida. — Stems 1° high. Involucel 3-leaved. 2. M. angustum, Gray. Annual ; stem erect, branching ; leaves lanceo- late, sparingly serrate, short-petiolcd ; stipules bristle-like ; flowers axillary, mostly solitary ; involucel setaceous, 2 -3-leaved; carpels 5, circular, awnless, at length 2-valved. (Sida hispida, Pursh. ? Ell. ?) — South Carolina and west- ward. — Stems 6'- 12' high. Calyx enlarged in fruit. 4. SIDA, L. Involucel none. Calyx angular. Styles 5 -15. Stigmas capitate. Ovaries 1 -celled. Carpels erect, mostly 2-valved and 2-beaked at the apex, separating at maturity from each other, and from the central axis. Seed resupinate, sus- pended, 3-angled. Embryo curved. Radicle superior. — Branching herbs or shrubs, with chiefly undivided leaves, and small yellow or reddish flowers in their axils. * Leaves, at least the lower ones, cordate : carpels 5. 1. S. spinosa, L. Annual, minutely pubescent; branches erect; leaves oblong-ovate, acute, serrate, the slender petioles often with a tubercular spine at the base, the lower ones cordate ; stipules setaceous, half as long as the petioles ; flowers single or clustered, on short erect peduncles ; carpels faintly reticulated, each pointed with two erect subulate spines. — "Waste places, Florida and north- ward. July - September. — Stems 1° - 2° high. Flowers £' wide, yellow. 2. S. supina, L'Her. Perennial, tomentosc ; stems divided at the base into slender simple ascending or prostrate branches ; leaves all round-cordate, crenate, rounded at the apex, hoary beneath ; the slender petioles spineless at the base ; stipules minute, subulate, deciduous ; flowers solitary ; the peduncles half as long as the petioles and reflexed in fruit ; carpels downy, reticulated, almost beakless, opening irregularly near the membranaceous base. (S. ovata, Cav. S. procumbens, Swartz.) — South Florida. October. — Stems 6' -12' MALVACEAE. (MALLOW FAMILY.) 55 long ; leaves £' - 1 ' long ; the limb scarcely longer than the petiole. Flowers yellow, not half as large as in the preceding. * * Leaves not cordate : carpels 7 — 12. 3. S. Stipulata, Cav. Nearly smooth ; stem erect or curving ; leaves and branches distichous ; leaves lanceolate and oblong, acute, unequally serrate, on short petioles ; stipules linear-subulate, longer than the petioles, smooth, per- sistent; flowers single or clustered, on peduncles 3-4 times as long as the pe- tioles ; carpels 10, strongly reticulated, pointed with two short and incurved spines. (S. glabra, Nittt.) — Waste places and around dwellings, Florida. June - November, (i) or 1J. — Stems l°-3° high. Leaves 2' -3' long. Flow- ers 1' wide, yellow, expanding at mid-day. Petals obliquely obcordate. 4. S. rhombifolia, L. Downy ; stems erect, much branched ; leaves rhombic-oblong, obtuse at each end, serrate, short-petioled, pale beneath ; stip- ules setaceous, longer than the petioles, caducous ; peduncles solitary, more than half as long as the leaves ; carpels 10-12, even, pointed with a single subulate spine, indehiscent. — Around dwelling^, Florida to North Carolina and westward. July -October. ® — Stems 2° - 3° high. Leaves 2' - 3' long. Flowers yel- low, smaller than in No. 3. 5. S. ciliaris, Cav. Rough with apprcssed rigid hairs ; stems prostrate ; leaves elliptical, obtuse at both ends, serrate above the middle, smooth above, the uppermost approximate ; stipules setaceous, and like the calyx fringed with long hairs ; flowers nearly sessile in the axils of the upper leaves ; carpels 7, strongly reticulated, pointed with two minute barbed spines. — Key West. 1J. — Stems 6' long. Leaves ^'-1' long. Flowers small, red. 6. S. Elliottii, Torr. & Gray. Perennial ; stems slender, roughish, erect, with long and straight branches ; leaves smoothish, lanceolate or linear, acute, serrate, on short petioles ; stipules setaceous ; flowers large, single ; peduncles longer than the petioles ; carpels 10-12, strongly reticulated, truncate or slightly 2-pointed. (S. gracilis, Ell., not of Rich.) — Open woods, Florida to North Car- olina and westward. July - October. — Stems 1 ° - 3° high. Leaves 1 ' - 2' long. Flowers 1' wide, yellow. 7. S. Iiindheimeri, Engel. & Gray. Stem shrubby, smooth, slender, much branched ; leaves rigid, narrow-linear, obtuse, serrate, paler and downy beneath, the short petioles spineless at the base ; stipules subulate, persistent, as long as the petioles ; peduncles about as long as the leaves ; carpels 10, faintly reticu- lated, pointed with two short and broad spines. — Key West. — Steins 1° high. Leaves 1' long. Petals barely exceeding the calyx in length. 5. ABUTILON, Toum. INDIAN MALLOW. Involucel none. Stigma capitate. Ovaries 5 or more, 1-celled, 2-9-ovuled. Carpels 1 -6-seeded, partly 2-valved, tardily separating from each other or from the central axis. Radicle ascending. — Leaves cordate. Flowers yellow, white, or purplish. 1. A. AvicennSB, Gaertn. Tomentose ; leaves round-cordate, acuminate, crenate ; peduncles axillary, 1-3-flowered, shorter than the long petioles ; car- 56 MALVACE^. (MALLOW FAMILY.) pels 12-14, hairy, inflated, truncate, 3-seeded, with two long and spreading spines. — Waste places chiefly in the middle and upper districts. Introduced. (1) — Stem 2° - 5° high. Leaves 4' -6' wide. Flowers orange-red.. 2. A. Hulseanum, Torr. Stem hispidly pilose ; leaves orbicular-ovate, abruptly acuminate, velvety beneath with a whitish pubescence, roughish-tomen- tose above, crenate-dentate ; peduncles axillary in the upper leaves, several- flowered ; styles about 12. — Tampa Bay, Florida. — Leaves 3 inches or more in diameter. Flowers 1^' in diameter, purplish ; pedicels very short. 3. A. Jacquini, Don. Stem erect (2° •*• 3°), branching, smooth or soft- downy ; leaves long-petioled, cordate or oblong-cordate, acuminate, unequally crenate, velvety on both surfaces and hoary beneath, or roughish above ; pedun- cles solitary in the upper axils, 1 -flowered, about the length of the petioles, or the upper ones longer ; lobes of the calyx ovate or oblong, shorter than the yellow petals ; carpels 8-10, rigid, hairy, longer than the calyx, acute or beaked, 3-seeded. (A. peraffine, Shuttl. Lavatera Americana, L. Sida abutiloides, Jacq. S. lig- nosa, Cay.) — South Florida. — Flowers 9"- 12" wide. 4. A. crispum, Gray. Hoary-tomentose ; stem sparingly branched ; leaves round-cordate, acuminate, finely crenate ; peduncles axillary, 1-flowered, elongated, filiform, refracted after flowering ; carpels 10, beakless, inflated, cor- rugated, hispid, 2-seeded. — Key West. — Stem slender, l°-2° high. Leaves 1'- 2' long, the upper ones nearly sessile. Peduncles as long as the leaves. Flowers 4" - 6" wide, white. 6. MODIOLA, Mcench. Involucel 3-leaved, persistent. Stamens 10-20. Ovaries 14-20, transversely 2-celled, each cell 1-ovuled. Stigmas capitate. Carpels 2-valved, 2-seeded, sep- arating at maturity from each other and from the central axis, each valve tipped with a slender spine. — Prostrate herbs, with palmately divided leaves, and small axillary flowers. 1. M. multiflda, Mcench. Hirsute; stems diffuse; leaves long-petioled, cordate-ovate, more or less deeply 5 - 7-parted ; the divisions lobed and toothed ; peduncles longer than the petioles ; carpels hispid. (Malva Caroliniana, L.) — Waste places, Florida to North Carolina and westward. July - October. 1|. — Stems 1° -2° long. Earliest leaves orbicular, undivided. Petals red, as long as the calyx. 7. PAVONIA, Cav. Involucel 5 - 15-leaved, persistent. Ovaries 5, 1-celled, 1-ovuled. Stigmas 10, capitate. Carpels indehiscent or somewhat 2-valved, naked or armed at the apex with three hispid awns, separating at maturity. Embryo incurved. Rad- icle inferior. — Chiefly shrubs, with petioled stipulate leaves, and solitary flow- ers on axillary peduncles. 1 . P. Lecontei, Torr. & Gray. Stem much branched, roughish-pubes- cent ; leaves ovate or somewhat sagittate, obtusely toothed, densely pubescent MALVACEAE. (MALLOW FAMILY.) 57 and hoary beneath, rough above, longer than the petioles ; involucel of 5 - 6 ovate leaves, which are slightly united at the base ; carpels obovate, awnless, strongly reticulate. — South Georgia, collected by Leconte. — Stem 4° - 5° high. Leaves I1' long. Flowers large, pale red. 8. KOSTELETZKYA, Presl. (HIBISCUS, L. in part.) Capsule depressed, the cells 1-seeded. — Otherwise as in Hibiscus. 1. K. Virginica, Presl. Rough-hairy ; stem erect, stout, branching ; lower leaves ovate, cordate, serrate, mostly 3-lobed, the upper ones narrower and usually entire; flowers (purple) in terminal racemes. — Var. ALTHE^EFOLIA. ( Hibiscus althecefolius, ShuttL ) Densely stellate-pubescent and somewhat hoary ; leaves all undivided, ovate or ovate-lanceolate, acuminate, unequally toothed- serrate j racemes dense-flowered ; capsule hirsute. — Var. SMILACIFOLIA. (Hi- biscus smilacifolius, ShuttL) Stem more slender, smoothish below; leaves all hastate, with lanceolate serrate lobes ; racemes few-flowered. — Marshes and low grounds near the coast, Florida and northward (the varieties near Manatee, South Florida, RugeL). July - September. 1J. — Stem 2° -4° high. Flow- ers l|'-2' wide. 9. HIBISCUS, L. ROSE-MALLOW. Involucel many-leaved or many-cleft, and, like the calyx, persistent. Stigmas 5, peltate or capitate. Capsule globose or oblong, 5-celled, loculicidally 5- valved, many-seeded. — Herbs, shrubs, or trees, with petioled stipulate leaves, and large showy flowers, on axillary peduncles. * Leaves of tfie involucel forked. 1. H. aculeatus, Walt. Muricate-hispid ; leaves round-cordate, divided into 3-5 coarsely toothed and spreading lobes, the upper ones narrower and mostly entire ; flowers yellow, with a purple centre, short-peduncled ; involucel 10- 12-leaved ; capsule hispid ; seeds smooth. — Margins of swamps and ponds, Florida to South Carolina, and westward. July. )J. — Stems 2° - 6° high. Flowers 4' wide. * * Leaves of the involucel entire. •*- Perennial herbs : stipules deciduous. 2. H. Moscheutos, L. Tomentose; leaves broadly ovate, acuminate, toothed-serrate, mostly 3-lobed above the middle, rounded or slightly cordate at the base, hoary beneath ; peduncles often partly adnate to the petioles ; flowers white or pale rose-color with a crimson centre; seeds smooth. — Ponds and marshes, Georgia, northward and westward. July. — Stems 3° - 5° high. Leaves 3' -5' long. Flowers 4' - 5' wide. 3. H. incanus, Wendl. Leaves lanceolate and ovate-lanceolate, not lobed, slightly cordate, acuminate, finely serrate, hoary on both sides ; flowers pale yellow with a crimson centre, often umbelled ; peduncles mostly free from the petioles ; capsule and seeds smooth. — Ponds and marshes, Florida to South Carolina, and westward. June and July. — Stems 2° - 5° high. Leaves 3' - 6' long. Flowers 6' - 8' wide. 58 BYTTNERIACE^E. (BYTTNERIA FAMILY.) 4. H. grandiflorus, Michx. Tomentose ; leaves round-ovate, cordate, mostly 3-lobed, toothed-serrate, hoary beneath ; flowers very large, pale rose- color with a deep red centre ; peduncles free from the petioles ; capsule velvety ; seeds smooth. — Marshes near the coast, Florida, Georgia, and westward. July. — Stems several from one root, 3° - 5° high. Leaves 4 '-6' long and nearly the same in width. Flowers 10' - 12' wide. 5. H. Carolinianus, Muhl. ? Ell. Smooth ; leaves cordate-ovate, acu- minate, serrate, sometimes slightly 3-lobed ; flowers purple ; peduncles slightly adhering to the petioles ; seeds hispid. — On Wilmington Island, Georgia. July - September. — Stems 4° - 6° high. Leaves 4' - 6' long. Flowers 6' - 8'wide. ( * ) 6. H. militaris, Cav. Smooth; leaves thin, on long and slender petioles, serrate, slightly cordate, the lower ones roundish, 3-5-lobed, the upper ovate- - lanceolate, entire or somewhat hastate, with rounded lobes ; peduncles shorter than the petioles ; calyx inflated ; corolla tubular-campanulate, pale rose-color with a red centre ; seeds silky. — River-banks in the upper districts, and westward. July and August. — Stems 3° - 4° high. Leaves 3' - 5' long. Corolla 2^' long. 7. H. COCCineus, Walt. Smooth ; stem glaucous ; leaves long-petiolcd, 5-parted to the base, the lobes lanceolate, remotely toothed, with long-tapering entire tips ; corolla expanding, bright scarlet ; petals long-clawed ; seeds pu- bescent. (H. speciosus, Ait ) — Deep marshes near the coast, Florida, Georgia, and westward. July and August. — Stems 4° - 8° high. Leaves 6' - 12' long. Corolla 6' - 8' wide. Column of stamens naked below. •*- H- Trees or shrubs : stipules persistent. 8. H. Ploridanus, Sliuttl. Hispid ; leaves small, ovate, obtuse, cre- nate-serrate, often cordate, and slightly 3-lobed ; peduncles longer than the leaves ; corolla tubular-campanulate, crimson ; column of stamens exserted ; seeds woolly. ( Malvaviscus Floridanus, Nutt. ) — South Florida. — Shrub 4° - 5° high, branching. Leaves £•'-!' long. Stipules subulate. Flowers 1' long. 9. H. tiliaceus, L. Leaves orbicular-cordate, acuminate, slightly cre- nate, hoary-tomentose beneath ; stipules large, oblong, clasping ; involucel 9 - 10-toothed ; capsule tomentose ; seeds smooth. — South Florida. — A large tree. Leaves 3/ -4' long. Flowers yellow ? H. ESCULENTTJS, L. (H. Collinsianus, Nutt. ?) is the garden OKRA. H. SYKIACUS, L., the ALTHAEA, is everywhere cultivated. To this family belongs the COTTON-PLANT (GOSSYPIUM, L.), the numerous varieties of which are now referred to two species, viz. the SHORT STAPLE or UPLAND (G. ALBUM, Earn.}, and the LONG STAPLE or SEA ISLAND (G. NI- GRUM, Ham.}. ORDER 23. BYTTNERIACEJE. (BYTTNERIA FAMILY.) Chiefly trees or shrubs differing from Malvaceae in having definite stamens, of which those opposite the petals are usually sterile, 2-celled anthers, with smooth pollen-grains, and a straight embryo- — Ovary 3 - 5-celled, rarely 1-celled. TILIACE^E. (LINDEN FAMILY.) 59 1. AYENIA, L. Involucel none. Calyx 5-parted. Petals on long capillary claws, connivcnt over the stigma. Fertile stamens 5, alternating with 1-2 sterile ones, their fila- ments united into a pedicellate cup. Style single. Stigma 5-angled. Capsule 5-lobed, 5-celled, loculicidally 5-valved, the cells 1 -seeded. — Low shrubby plants, with minute axillary flowers. Capsule rough. Albumen none. 1. A. pusilla, L. Stems mostly simple, prostrate, downy; leaves (4"- 8" long) roundish or oblong, coarsely serrate ; peduncles solitary, reflexcd in fruit; capsule depressed, muricate. — South Florida. 1J. — Stems 6' - 12' long. Flowers purple. 2. WALTHERIA, L. Involucel 3-leaved, deciduous. Calyx 5-clcft. Petals 5, spatulate, convolute in the bud. Stamens 5, united below. Ovary 1 -celled, 2-ovuled. Style single. Stigma pcnicillate or tuberculate. Capsule 2-valved, 1 -seeded. Embryo in the axis of fleshy albumen. — Herbs or shrubs, with alternate leaves, and small flow- ers in axillary clusters. 1 . W. Americana, L. Stem erect, villous ; leaves ovate or oblong, acute or obtuse, serrate, plicate, tomentose on both surfaces ; heads of flowers globose, stalked, or subsessile and shorter than the petioles, the upper ones often spiked ; calyx hirsute ; flowers yellow. — South Florida. — Stem 2° - 3° high, rigid. Leaves l'-2' long. ORDER 24. TILIACE^E. (LINDEN FAMILY.) Trees, rarely herbs. Leaves alternate, with deciduous stipules. Flow- ers axillary or extra-axillary, hypogynous, polyandrous. Sepals 4-5, valvate in the bud, deciduous. Petals 4-5, convolute or imbricated in the bud. Stamens distinct or united in clusters : anthers 2-celled, the pollen grains smooth. Style single. Stigma 4- 10-lobed. Capsule 2 -5-celled, 1 - many-seeded. Seeds anatropous. Embryo in the axis of fleshy albu- men. Cotyledons flat, leafy. 1. TILIA, Tourn. LINDEN. BASSWOOD. Sepals 5. Petals 5, imbricated in the bud. Stamens numerous, united in 5 clusters, with a petal-like appendage (sterile stamen) opposite each petal. Ovary 5-celled, with 2 ovules in each cell. Stigma 5-lobed. Capsule 1-celled, 1-2- seeded. — Trees, with cordate leaves, and several-flowered axillary peduncles, which are connate below with a large ligulate veiny bract. Flowers cream-color. 1. T. Americana, L. Leaves smooth and green on both surfaces, ob- liquely cordate or truncate at the base, sharply serrate. — Mountains of Georgia and northward. June. — A large tree. Leaves 4' - 5' wide. 2. T. pubescens, Ait. Leaves hoary-tomentose on both surfaces, becom- ing smoothish above, obliquely truncate at the base, mucronate-serrate. — Rich soil, Florida to North Carolina, and westward. June. — Leaves 4' - 5' wide. 60 CAMELLIACE^E. (CAMELLIA FAMILY.) 3. T. heterophylla, Vent. Leaves larger (6' -8' wide), deep green above, white-tomentose beneath. — Mountains of North Carolina. — June and 2. CORCHORUS, L. Sepals 5. Petals 5, convolute in the bud. Stamens mostly numerous, sep- arate. Style slender. Stigma dilated, crenulate. Capsule mostly elongated, silique-like, loculicidally 2-valved, many-seeded. — Herbs or shrubby plants, with alternate serrate petioled leaves, and small yellow flowers on short pedun- cles opposite the leaves. Stipules deciduous. 1 . C. siliqilOSUS, L. Stem much branched, hairy in lines ; leaves ovate and lanceolate, smooth; peduncles 1-2-flowered; stamens numerous; capsule linear, compressed, 2-celled, many-seeded. — Near Mobile, Alabama, and Key West. — Stems 1° - 2° high. Capsule 2' long. ORDER 25. CAMELLIACE^E. (CAMELLIA FAMILY.) Trees or shrubs, with alternate exstipulate leaves, and regular hypo- gynous polyandrous showy flowers. — Sepals and petals 5-6, imbricated in the bud. Stamens numerous, united at the base into a ring, or into sets placed opposite the petals, and adnate to their bases : anthers 2-celled, introrse. Ovary 2-5-celled, 2 - many-ovuled. Styles 2-5, distinct or united. Capsule 2-5-cellcd, mostly loculicidally dehiscent Albumen scarce or none. 1. GORDONIA, Ellis. LOBLOLLY-BAY. Sepals 5, roundish, concave. Petals 5, thick, obovate, united at the base. Stamens united into 5 sets. Ovary 5-celled, with 4-8 pendulous ovules in each cell. Styles united. Capsule loculicidally 5-valved, woody. Seeds angular or winged. Flowers axillary. § 1 . GORDONIA proper. — Stamens short, inserted into the fleshy 5-lobedcup which adheres to the base of the petals ; capsule ovoid, 5-valved. — Leaves coriaceous, peren- nial. Flowers long-peduncled. 1. G. Lasianthus, L. Sepals and petals silky; leaves obovate-oblong, narrowed into a petiole, finely serrate. — Swamps in the lower districts, Florida to North Carolina, and westward. July and August. — A tree 30° - 50° high. Flowers 2' wide, white. § 2. FRANKLINIA. — Stamens long, distinct, inserted into the base of the petals; capsule glolwse, hcuUcidally 5-valved above the middle, and septicidally 5-valved below. — Leaves deciduous. 2. G. pubescens, L'Herit. Sepals and petals silky; leaves obovate- oblong, sharply serrate, white beneath ; flowers short-peduncled. — Georgia and Florida, near the coast. — A small tree. Flowers 3' wide, white. OLACACE^i. (XIMENIA FAMILY.) 61 2. STUARTIA, Catcsb. Sepals 5-6, silky, 1 - 2-bracted. Petals 5-6, obovate, crenulate, silky. Sta- mens united into a ring at the base, and adnate to the base of the petals. Ovary 5-celled, with two anatropous ovules in each cell. Styles 5, distinct or united. Capsule ovoid, woody, 5-valved ; the cells 1 - 2-seeded. — Shrubs, with alternate leaves, and large white or cream-colored flowers on short axillary peduncles. § 1. STUARTIA. — Styles united : capsule globose : seeds not margined. 1. S. Virginica, Cav. Sepals 5, roundish; petals 5, round-obovate ; leaves oval, thin, serrulate, finely pubescent. (S. Malachodendron, L.) — Shady woods, Florida to North Carolina, and westward. April and May. — Shrub 8° - 12° high. Flowers 2' -3' wide. Stamens purple. § 2. MALACHODENDRON. — Styles separate : capsule ovate, acuminate : seeds margined. 2. S. pentagyna, L'Her. Sepals and petals 5-6, the latter obovate, with jagged edges ; leaves oval, acute. — Mountains of Georgia and North Carolina. May -July. — Shrub similar to the preceding, the leaves and flowers rather larger, and longer stamens. ORDER 26. OLACACE^3. (XIMENIA FAMILY.) Trees or shrubs, with alternate entire petioled and exstipulate leaves, and regular hypogynous perfect or polygamous flowers, in axillary ra- cemes or corymbs. — Calyx truncate or 4 - 5-toothed, persistent. Petals 4-5, distinct or partly united, valvate in the bud. Stamens mostly twice as many as the petals, and inserted into their bases: anthers introrse. Ovary 1 -4-celled. Ovules few, anatropous. Style single, filiform. Fruit drupaceous, often surrounded with the enlarged calyx, 1-celled, 1-seeded. Embryo straight in the axis of fleshy albumen. 1. XIMENIA, Plum. Calyx small, 4-toothed. Petals 4, united at the base, villous within. Sta- mens 8. Ovary 4-celled, the cells 3-4-ovuled. Drape baccate; not enclosed in the calyx. — Thorny trees or shrubs. Leaves coriaceous. Flowers axillary, single or corymbose. 1. X. Americana, L. Smooth; leaves 2-3 together, oblong, obtuse, short-petioled ; peduncles 2 - 4-flowered, shorter than the leaves ; petals thick, lanceolate, spreading above, rusty-hairy within. — Key West. — Thorns stout, %> long. Leaves 2' long. Flowers small, yellow. Drupe yellow, roundish, as large as a plum. Nut white, globose. ORDER 27. AURANTIACE^E. (ORANGE FAMILY.) The ORANGE, LEMON, and LIME (species of CITRUS, Z.) are com- monly cultivated in the warmer parts of the Southern States, and the 6 62 LINAGES. (FLAX FAMILY.) BITTER-SWEET ORANGE (C. VULGARIS, Risso) is completely naturalized in some portions of South Florida. The PRIDE OF INDIA, or CHINA-TREE (MELIA AZEDERACH, L.) belongs to the allied Order MELIACE^E. ORDER 28. CEDRELACE^E. (MAHOGANY FAMILY.) Lofty trees, with hard and colored wood, pinnate exstipulate leaves, and regular hypogynous panicled flowers. — Sepals 3-5, often more or less united. Petals 3-5, convolute in the bud. Stamens twice as many as the petals, distinct or united into a tube, and inserted with the petals into an hypogynous disk. Ovary 3 - 5-celled, with few or many ovules in each cell. Style single. Capsule woody, 3 - 5-celled, 3 - 5-valved, the valves at length separating from the thick angular or winged axis. Seed anatro- pous, winged. Albumen fleshy or none. Cotyledons leafy. 1. SWIETENIA, L. MAHOGANY. Calyx 5-cleft. Petals 5. Stamens 10, united into a 10-toothed tube, which encloses the 10 anthers. Style short. Stigma 5-rayed. Capsule 5-celled, 5-valved, with the numerous suspended seeds imbricated in two rows. — A large tree, with hard reddish-brown wood. Leaves alternate, abruptly pinnate. Leaf- lets 6-10, opposite, entire, ovate-lanceolate, unequal at the base. Flowers greenish-yellow, in axillary panicles. Capsule ovate, as large as an Orange. l. S. Mahogoni, L. South Florida, ORDER 29. LINACE7E. (FLAX FAMILY.) Chiefly herbs, with entire exstipulate leaves, and regular hypogynous racemose or panicled flowers. — Sepals 4-5, imbricated in the bud, per- sistent. Petals 4-5, convolute in the bud, deciduous. Stamens 4-5, united at the base. Styles 4-5, rarely united. Capsule globose, splitting into five 2-seeded carpels, which are more or less perfectly 2-celled and 2-valved. Seeds anatropous, suspended. Cotyledons flat. 1. LINTJM, L. FLAX. Sepals, petals, stamens, and styles 5. Capsule partly or completely 10-celled, the cells 1 -seeded ; seeds compressed, oily. — Stems slender. Leaves narrow and mostly alternate. Peduncle 1 -flowered, borne above or opposite the leaves. 1. L. Virginianum, L. (WILD FLAX.) Leaves lanceolate, acute, the lower ones opposite and obtuse ; flowers scattered in corymbose racemes ; sepals smooth, ovate, acute ; styles distinct ; capsule depressed-globose, 10-celled. — Varies with glandular sepals, larger globose-ovate capsules, and linear leaves. — Sterile soil, Florida and northward. July. 1J. — Stem slender, often much branched, 2° high. Flowers yellow. ZYGOPIIYLLACE^E. (BEAN-CAPER FAMILY.) 63 2. L. Boottii, Planchon. Leaves linear, acute ; flowers scattered in cymose racemes ; sepals ovate-lanceolate, 3-nerved, fringed with glandular hairs ; styles united below the middle ; capsule imperfectly 10-celled, globose. — Diy soil, North Carolina and northward. July. — Stems l°-2° high. Flowers larger than in No. 1, sulphur-yellow. 3. L. striatum, Walt. "Flowers terminal; leaves subovate, alternate, the nerve and margins decurrent on the stem ; stem branched, striate." — South Carolina, Walter. (*) ORDER 30. OXALIDACE^S. (WOOD-SORREL FAMILY.) Chiefly herbs, with sour juice, alternate compound leaves, and regular hypogynous decandrous flowers. — Sepals 5, imbricated in the bud^ per- sistent. Petals 5, convolute in the bud, deciduous. Stamens more or less united. Styles 5, distinct. Ovary 5-celled. Capsule 5-celled, the cells few-seeded. Seeds anatropous, pendulous. Embryo straight in the axis of fleshy albumen. Cotyledons flat. 1. OXALIS, L. WOOD-SORREL. Capsule 5-lobed ; the cells loculicidally dehiscent on the back, 1 -few-seeded. Seed-coat loose and separating. — Leaves 3-foliolate. Leaflets obcordate. 1. O. violacea, L. (PURPLE WOOD-SORREL.) Stemless ; root tuber- ous ; scapes umbellately 4 - 6-flowcred ; flowers purple, nodding. — Rich woods, West Florida to North Carolina, and westward. May and June. — Scapes and petioles 5' -9' high. 2*. O. Acetocella, L. (WHITE WOOD-SORREL ) Stemless ; root creep- ing; scape 1 -flowered ; flower white, veined with red. — Mountains of North Carolina and northward. June. — Scape and petioles hairy, 2f -5' high. 3. O. Stricta, L. (YELLOW WOOD-SORREL.) Stems branching, leafy; peduncles axillary, 2 - 6-flowered, longer than the leaves ; flowers yellow ; cap- sule elongated, erect. — Dry soil, common and varying greatly. April - De- cember. © and ty — O. recurva and O. furcata, Eli, and 0. Lyoni, Ph., are forms of this. ORDER 31. ZYGOPHYLLACE^K. (BEAX-CAPER FAMILY.) Herbs, shrubs, or trees, with hard wood, opposite pinnate dotless stipu- late leaves, and regular hypogynous mostly decandrous flowers. — Sepals and petals 5-6, imbricated or convolute in the bud. Stamens distinct, often appendaged. Ovary 2 - 1 2-celled, with the styles united. Capsule composed of 2 -1 2 indehiscent carpels, which separate from each other and often from a central axis at maturity. Embryo straight. Cotyledons flat. Radicle superior. 64 GERANIACE^E. (GERANIUM FAMILY.) Synopsis. 1. TRIBULUS. Carpels 6, transversely few-celled, few-seeded. Herbs. 2. KALLSTROMIA. Carpels 10, 1-celled, 1-seeded. Herbs. 3. GUAIACUM. Carpels 2 -5, compressed, 1-seeded. Trees. 1. TKIBTJLUS, L. Sepals 5, imbricated in the bud, deciduous. Stamens 10. Ovary 5-celled, with 3-5 suspended ovules in each cell. Carpels of the fruit 5, spiny on the back, transversely divided into 2-5 one-seeded cells, separating at maturity, with- out a central axis. Albumen none. — Prostrate herbs. Leaves abruptly pinnate. Peduncles solitary, 1 -flowered. 1. T. cistoides, L. Leaves unequal ; leaflets 6 - 1 6, linear-oblong, mucro- nate, silky beneath ; peduncles as long as the leaves ; flowers large, yellow. — Key West. — Stems l°-2° long, hairy. Petals 2-3 times as long as the calyx. 2. KALLSTBOMIA, Scop. Sepals 5-6, persistent, imbricated in the bud. Stamens 10-12. Ovary 10- 12-celled, the cells 1-ovuled. Carpels of the fruit 10-12, separating from each other and from the central axis. Albumen none. — Hairy herbs, with the habit of TRIBULUS. 1 . K. maxima, Torr. & Gray. Leaves nearly equal ; leaflets 6-8, ob- liquely oblong, mucronate, the terminal pair larger ; peduncles shorter than the leaves ; petals as long as the bristly calyx, yellow ; carpels rugose on the back. — Key West and Savannah. — Stems l°-2° long. 3. GUAIACUM, Plum. Sepals 5, deciduous. Stamens 10, with naked filaments. Ovary stalked, 2 -5-celled, the cells 8-10-ovuled. Carpels of the fruit 2-5, compressed, 1- seeded. Seed-coat fleshy. Embryo straight in hard thin albumen. — Trees. Leaflets reticulate. Flowers blue or purple. 1. G. sanctum, L. Branches opposite and forking, jointed, pubescent when young ; leaflets 6 or 8, obliquely obovate or oblong, mucronate, entire ; peduncles single or clustered at the forks of the branches, 1 -flowered, shorter than the leaves ; sepals and petals obtuse ; flowers blue. — South Florida. — A small tree with white bark. Flowers ' wide. Fruit obovate. ORDER 32. GERANIACE-flE. (GERANIUM FAMILY.) Herbs or shrubby plants, with tumid joints, alternate or opposite pal- mately lobed stipulate leaves, and hypogynous and decandrous flowers. — Sepals 5, imbricated in the bud, persistent. Petals 5, convolute in the bud, deciduous. Stamens monadelphous at the base ; the 5 exterior ones shorter and often sterile. Ovaries 5, 2-ovuled, and, with the persistent BALSAMINACE^E. (BALSAM FAMILY.) 65 styles, adnate to an elongated central axis, from which they separate elas- tic-ally at maturity. Seed solitary, without albumen. Embryo convolute. 1. GERANIUM, Tourn. CRANESBILL. Flowers regular. Stamens perfect, the inner ones with a gland at the hase. Styles at maturity separating with the 1 -seeded carpels, and coiled upward, the inner face naked. — Herbs. Stems forking. Leaves palmately lobed. Pedun- cles 1-3-flowered. 1. G. maculatum, L. Perennial, erect, hairy; leaves 5-7-parted, the divisions acutely lobed and toothed ; peduncles 1 - 2-flowered, the terminal ones often umbellate ; petals large, entire, 2-3 times longer than the oblong awned sepals. — Open woods in the upper districts and northward. April and May. — Root tuberous, very astringent. Stem l°-2° high. Flowers purple, 1' wide. t 2. G. Carolinianum, L. Annual, generally prostrate, pubescent ; leaves 5-7-parted, the narrow divisions obtusely lobed and toothed ; peduncles 2-flow- ered ; petals emarginate, as long as the ovate awned sepals. — Waste places, common. March and April. — Stems forkirig, 6' -18' long. Flowers pale purple. ORDER 33. BAL.SAMINACEJE. (BALSAM FAMILY.) Smooth and succulent annual herbs, with undivided exstipulate leaves, and irregular hypogynous pentandrous flowers. — Sepals 5, colored, de- ciduous; the two inner (and upper) ones united, the lowest large and saccate. Petals 4-5, distinct or united. Stamens 5, coherent above. Ovary 5-celled, the cells 2 - several-ovuled. Fruit capsular or drupa- ceous. Seeds anatropous, without albumen. Embryo straight, with thick cotyledons. 1. IMPATIENS, L. JEWEL-WEED. Lowest sepal saccate and spurred. Petals 4, united by pairs. Filaments short, with a scale on the inner face. Capsule 5-celled, bursting elastically into 5 valves. Placenta central, persistent. — Stems branching, somewhat pellucid. — Leaves serrate. Peduncles axillary, 1 -several-flowered. Earliest flowers fruiting in the bud. 1. I. pallida, Nutt. (PALE TOUCH-ME-NOT.) Leaves ovate or oval, ob- tusely serrate, membranaceous ; flowers pale yellow ; lower sepal slightly spotted, dilated, open, tipped with a short recurved spur. — Wet shady places, Georgia and northward. July - Sept. — Stems 2° - 4° high. 2. I. fulva, Nutt. (SPOTTED TOUCH-ME-NOT.) Flowers deep orange; lower sepal conical, conspicuously spotted, tipped with a rather long recurved spur; otherwise like No. 1, but with smaller flowers. — Shady swamps, Florida and northward. July - Sept. 6* GG RUTACEJS. (RUE FAMILY.) ORDER 34. RUTACEJG. (RUE FAMILY.) Herbs, shrubs, or trees, with exstipulate simple or compound dotted leaves, and regular hypogynous perfect or unisexual flowers. — Sepals and petals 3-5. Stamens as many or twice as many as the sepals. Ovaries 2 - 5, distinct or united, stipitate or sessile on a glandular disk. Styles mostly united. Fruit commonly composed of separate 1 -celled 2-valved carpels. Embryo straight or curved, mostly in fleshy albumen. 1. ZANTHOXYLTJM, L. PRICKLY ASH. Plowers monoecious or dioecious. Sepals and petals 3-5. Stamens 3-5. Ovaries 2 - 5, sessile or stipitate, 2-ovuled. Carpels 2-valved, 1 - 2-seedcd. Seed smooth and shining. — Trees or shrubs, commonly armed with stipular prickles. Leaves unequally pinnate, the leaflets punctate with pellucid dots. Flowers small, greenish. 1. Z. Carolinianum, Lam. (TOOTHACHE-TREE.) Smooth; branches and commonly the petioles armed with long prickles ; leaves alternate, 7-9- foliolate; leaflets ovate-lanceolate, crenate-semilate, unequal-sided, shining above; panicles terminal; stamens 5; carpels 3, nearly sessile. — Var. FRUTICOSUM, Gray. Shrubby ; leaves shorter, ovate or oblong, more strongly crenate ; ova- ries always two. — Dry soil near the coast, Florida to North Carolina, and west- ward. June. — A small tree, with the pungent bark armed with warty prickles. 2. Z. Ploridanum, Nutt. (SATIN-WOOD.) Branches and petioles un- armed ; leaflets 5-7, ovate-lanceolate on the fertile plant, and elliptical, obtuse or emarginate on the sterile, slightly crenulate, and like the cymose panicle stel- late-pubescent ; stamens 4 - 5 ; carpels 1-2, obovate, stipitate ; seed solitary, obovate, black and shining. — South Florida. — Leaves l'-2' long. Cyme sessile, divided into three primary branches. Flowers minute. 3. Z. Pterota, H. B. & K. Smooth ; branches zigzag, armed with short curved prickles ; petiole winged, jointed ; leaflets 7-9, small, obovate, coria- ceous, crenate above the middle, sessile ; flowers in axillary clusters, which are single or by pairs, as long as the first joint of the petiole ; stamens 4 ; ovaries 2 ; carpels solitary, globose,f)itted, distinctly stipitate. — South Florida. — Leaf- lets £' - 1' long, those on the fertile plant narrower and smaller. Carpels small, dotted. 2. PTELEA, L. HOP-TREE. Flowers polygamous. Sepals and petals 4-5, imbricated in the bud, decidu- ous. Stamens 4-5. Ovary 2-celled, with two ovules in each cell. Style short. Stigma 2-lobed. Capsule 2-celled, 2-seeded, surrounded by a broad circular reticulated wing. — Unarmed shrubs, with trifoliolate leaves, and small greenish flowers in a terminal cyme. 1 . P. trifoliata, L. Pubescent ; leaves long-petioled ; leaflets oval or oblong, mostly acute, obscurely creuulate, paler beneath, the lateral ones unequal- BURSERACE^. (TORCH-WOOD FAMILY.) 67 sided ; filaments 4-5, densely villous below the middle, longer than the style in the sterile flowers, shorter in fertile ones. — Rocky banks, Florida and northward. May and June. — Shrub 4° - 8° high. Leaflets 2' - 4' long. Fruit 1' wide. 2. P. mollis, M. A. Curtis. "Lateral leaflets oval, the terminal ob- ovate, with an abrupt acute point, the under side, with the petioles, panicles, and young branches, clothed with a soft whitish silky villus ; cymes compact, with short branches ; style long ; filaments equalling the anthers." — Low country of North and South Carolina (Curtis). — Leaves smaller and more rigid than in No. 1, the style twice as long. Stamens 4. 3. P. Baldwin!!, Torr. & Gray. Leaves very small, glabrous ; leaflets sessile, oval, obtuse, the terminal one cuneiform at the base ; flowers tetrandrous ; style none. — East Florida. — Shrub 1° high, with numerous short and scrag^v branches. Leaflets 1' long. Flowers smaller than in No. 1. ORDER 35. SIMARTJBACEJE. (QUASSIA FAMILY.) Trees or shrubs, with bitter milky juice, pinnate exstipulate alternate and dotless leaves, and regular hypogynous perfect or polygamous flowers. — Calyx 4 - 5-parted or 4 - 5-toothed, persistent. Petals 4-5, deciduous. Stamens as many or twice as many as the petals, inserted on a hypogy- nous disk. Ovary composed of 4 - 5 distinct or united carpels, with a sol- itary anatropous suspended ovule in each. Fruit drupaceous, 1-seeded. Seeds with a meinbranaceous coat. Albumen none. Radicle superior, included in the cotyledons. 1. SIMARUBA, Aublet. QUASSIA. Flowers monoecious or dioecious. Calyx 4 - 5-toothed. Petals 4-5, spread- ing. Stamens 8- 10, with the filaments inserted on the back of a ciliate scale. Ovaries 4-5, surrounded by 8-10 scale-like rudiments of stamens. Styles con- nivent ; the stigmas spreading. Drupes 1-5. — Trees. Leaves abruptly pin- nate, with alternate and entire leaflets. Flowers small, greenish, in lateral and terminal panicles. 1. S. glauea, DC. Smooth throughout; flowers dioecious; stigmas 5, subulate, spreading ; leaflets 4-8, alternate and opposite, coriaceous, obovatc or oblong, obtuse, paler beneath ; drupe oval, mostly solitary. -- South Florida. — A larire tree. ORDER 3G. BURSERACE./E. (TORCH-WOOD FAMILY.) Trees or shrubs, with resinous juice, unequally pinnate or trifoliolate commonly dotted leaves, and small regular flowers in axillary or terminal racemes or panicles. — Calyx free from the 1 - 5-celled sessile ovary, 2 - 5-lobed, persistent. Petals 2-5, alternate with the calyx-lobes, and 68 ANACARDIACE^. (CASHEW FAMILY.) inserted under an orbicular or annular disk at the bottom of the calyx, mostly valvate in the bud. Stamens twice as many as the petals, and in- serted with them : anthers introrse. Ovules anatropous, pendulous, mostly two in each cell. Stigmas 1-5. Fruit drupaceous, dry ; the peri- carp often splitting into valves. Albumen none. Radicle superior. 1. BURSEBA, Jacquin. Flowers polygamous. Sterile Fl. Calyx 3 - 5-parted. Petals 3-5, valvate in the bud. Stamens 6 -10. Disk crenulatc. Fertile Fl. Calyx 3-partcd. Petals 3. Stamens 6. Ovary ovate, 3-celled. Style short : stigma 3-lobed. Drupe oblong, 1 -seeded ; the pericarp 3-valvcd. Cotyledons wrinkled. 1. B. gummifera, Jacquin. Leaves alternate, 3 - 9-foliolate, long-peti- oled, deciduous ; leaflets stalked, opposite, ovate, acuminate, entire, rounded or slightly cordate at the base, at length smooth on both sides ; flowers small, whitish, in axillary racemes ; drupe purplish. — South Florida. — A large tree. 2. AMYRIS, L. TORCH-WOOD. Flowers perfect. Calyx 4-partcd. Petals 4, narrowed at the base, imbricated in the bud. Stamens 8, shorter than the petals, hypogynous. Ovary 1-celled. Stigma capitate. Drupe globose, 1-seeded. Cotyledons plano-convex. — Trees or shrubs. Leaves 3 - 7-foliolate, opposite, with glandular pellucid dots. Flow- ers panicled, white. 1 . A. Floridana, Nutt. Smooth ; leaves petioled, trifoliolate ; leaflets ovate, obtuse, entire, on slender stalks ; branches of the panicle opposite ; drupe, like the flowers, dotted. — South Florida. — A shrub or small tree. Leaves 1;-1|' long, shining above. Flowers yellowish-white. ORDER 37. ANACARDIACE^. (CASHEW FAMILY.) Trees or shrubs, with milky or resinous juice, alternate exstipulate dot- less leaves, and perfect or polygamous regular flowers. — Sepals and petals 4-5, imbricated in the bud. Stamens as many as the petals, or twice as many, and inserted with them into the base of the calyx. Ovary solitary, with a single ovule ascending from the base of the cell. Style simple or 3-cleft. Fruit drupaceous. Seeds without albumen. Radicle curved. • - .- ../.... 1. RHTTS, L. SUMACH. Calyx 5-parted. Petals 5, inserted with the 5 stamens on the disk which sur- rounds the base of the ovary. Stigmas 3. Drupe dry. Radicle superior, in- curved. — Shrubs or small trees. Leaves pinnate or trifoliolate, rarely simple. Flowers small, greenish, in spikes or panicles. ANACARDIACE^:. (CASHEW FAMILY.) 69 * Flowers polygamous, in a dose terminal panicle : drupe red, hairy : leaves pinnate. (Not poisonous.) 1. R. typhina, L. Branches, petioles, and drupes villous ; leaflets 17-21, lanceolate, acuminate, serrate, smooth, pale beneath. — Dry hill-sides, Mississippi to North Carolina, and northward. June and July. — A shrub or small tree. 2. R. glabra, L. Smooth and glaucous; leaflets 17-31, oblong-lanceo- late, serrate, acuminate, white beneath. — Open woods in dry rich soil, West Florida to Mississippi, and northward. July. — A shrub 6° - 10° high. Peti- f olcs terete. 3. R. copallina, L. (SUMACH.) Branches and wing-margined petioles tomentose ; leaflets 9-21, lanceolate or ovate-lanceolate, acute or obtuse, mostly entire, smooth above, paler and downy beneath ; panicle often large and spread- ing. — Margins of fields and open woods, Florida to Mississippi, and northward. July and August. — A shrub or small tree. 4. R. pumila, Michx. Low, procumbent ; branches and petioles tomen- tose ; leaflets 11-13, oval or oblong, acute, coarsely serrate, pale and tomentose beneath. — Pine barrens, Georgia to North Carolina. — Branches 1° high. * * Flowers dioecious, in loose axillary panicles : drupe whitish, smooth : leaves pin- nate and trifoliolate. — (Juice poisonous.) 5. R. venenata, DC. (POISON ELDER.) Smooth ; leaves pinnate ; leaf- lets 7-13, ovate or oblong, abruptly acute or acuminate, entire ; panicles long- peduncled, narrow, erect. (R. Vernix, L.) — Swamps, Florida to Mississippi, and northward. July. — A shrub 8° - 12° high. 6. R. Toxicodendron, L. (Poisox OAK. POISON IVY.) Branches and petioles smooth ; leaves trifoliolate ; leaflets ovate or oblong-ovate ; panicle small, spreading. Var. 1. quercifolium, Michx. Stems low, erect ; leaflets mostly vari- ously lobed. — Dry pine barrens. Var. 2. radicans, Torr. Stems climbing by rootlets ; leaflets toothed or entire, rarely lobed, more or less pubescent. — Swamps, Florida to Mississippi, and northward. July. * * * Flowers dioecious, in loose panicles : drupe oblong, smooth, scarlet : nut char- taceous : seeds arillate : leaves pinnate. 7. R. Metopium, L. Smooth ; leaflets 3-7, coriaceous, long-stalked, ovate or elliptical, acuminate, entire ; panicle narrow, as long as the leaves ; calyx-lobes yellowish-white ; petals and stamens 5. — South Florida. — A tree 15° -20° high. * # # * Flowers dioecious, in short bracted spikes, appearing with the leaves : drupe red, hairy : leaves trifoliolate. 8. R. aromatica, Ait. Stem low, smooth ; leaflets ovate, or the termi- nal one obovate, obtuse, pubescent when young, toothed above the middle ; spikes single or clustered, spreading. — Dry open woods, West Florida to Mis- sissippi, and northward. March and April. — Shrub l°-2° high. Spikes 1' long. — Plant aromatic, not poisonous. 70 VITACE^E. (VINE FAMILY.) * Flowers perfect, in an open panicle, the pedicels mostly abortive, elongat- ing, and plumose : drupe smooth. 9. B. COtinoides, Nutt. Smooth; leaves simple, membranaceous, oval, obtuse, entire, acute at the base, the upper ones long-petioled ; panicle nearly sessile, narrow, with erect branches ; flowers minute. — Interior of Alabama, Buckley. Leaves, with the petiole, 3' -4' long. ORDER 38. VITACE^E. (VINE FAMILY.) , Climbing shrubs, with watery juice, opposite stipulate leaves, and small greenish flowers in panicled clusters opposite the leaves. — Calyx minute, truncated. Petals 4 -5, hypogynous or perigynous, valvate in the bud, deciduous. Stamens 4-5, opposite the petals: anthers introrse. Ovary 2-celled, with 2 erect collateral ovules in each cell. Style short or none : stigma slightly 2-lobed. Berry- 1-4-seeded. Seeds anatropous, bony. Embryo minute at the base of hard or fleshy albumen. Radicle inferior. — Leaves simple or compound. Tendrils opposite the leaves. Flowers perfect or polygamous, 1. VITIS, L. VINE. GRAPE. Petals distinct, or remaining united at the apex and separating at the base, inserted into a 4 - 5-lobed or cup-shaped disk which surrounds the ovary. § 1. Cissus. — Flowers perfect: petals and stamens 4-5: style conspicuous: stigma minute : leaves simple or compound. 1. V. bipinnata, Torr. & Gray. Leaves bipinnate, smoothish; leaflets small, ovate, sharply toothed; flowers somewhat cymose, on a long forking peduncle ; petals 4-5, united at the apex, separating at the base ; style conical ; disk 4 - 5-lobed ; berry 2 - 4-seeded, ( Ampelopsis bipinnata, Michx.) — Margins of swamps, Florida and northward. June and July. — Tendrils none. Leaflets 1 ' long. Berry small, black. 2. V. acida, L. Branches geniculate ; leaves trifoliolate, thick and rigid ; leaflets small, cuneate-obovate, sharply toothed at the apex; flowers in com- pound umbels ; petals 4, united at the apex, separating at the base ; style slen- der ; disk cup-shaped, entire ; berry black, 1-seeded. — Key West. — Tendrils stout and elongated. Leaflets £' long. Branchlets and peduncles flattened and elongated. Leaves and parts of the panicle separating in drying, as also in the next species. ,. 3. V. incisa, Nutt. Smooth; stem climbing, warty; leaves trifoliolate, very thick and fleshy ; leaflets stalked, wedge-shaped and entire near the base, the lateral ones 2-lobed, the middle 3-lobed, all mucronate-toothed or serrate ; berry (purple) globose-ovate, nodding, pointed with the conspicuous slender style, 1-seeded. — Sandy shores of St. Vincent's Island, West Florida and westward. Fruiting in November. — Stem 6° -12° long. Leaflets l'-3' long. Panicles cymose. Berry 5''- 6" long. Flowers not seen. VITACEJE. (VINE FAMILY.) 71 4. V. indivisa, Willd. Leaves simple, undivided, ovate, truncate, or cor- date at the base, acuminate, toothed-serrate, pubescent ; peduncles forking ; petals and stamens 5 ; style slender; disk cup-shaped; berry 1-3-sceded. — Banks of rivers, Florida to North Carolina, and westward. June. — Stem climbing high. Berry small, black. § 2. VITIS. — Mowers polygamous : petals 5, cohering at the top, free at the base: stamens 5 : style short : disk thick, 5-lobed : leaves simple, cordate, entire or variously lobed. * Leaves and branches woolly, 5. V. Labrusca, L. (FOX-GRAPE.) Leaves broadly cordate, angularly 3 -5-lobed, mucronate-serrate, very woolly when young, at length smoothish above ; fertile panicles or racemes few-flowered ; berry large. — River-swamps, Mississippi to North Carolina, and northward. May and June. — Leaves 4' -6' wide. Berry £' in diameter, purple or whitish, pleasant-flavored. 6. V. Caribsea, DC Leaves round-cordate, with a broad and shallow sinus, entire or 3-lobed, wavy-serrate, acute or acuminate, soon smooth abov«, the lower surface, like the branches, petioles, and panicles, clothed with soft ash- colored down ; panicles equalling or longer than the leaves ; pedicels smooth. (V. coriacea, Shuttl.1 a form with smaller and more rigid leaves.) — South Florida. Berry £' in diameter. 7. V. sestivalis, Michx. (SUMMER GRAPE.) Leaves broadly cordate, entire or 3 - 5-lobed, or on young plants pinnatifid, mucronate-serrate, covered with a loose cobwebby down, at length smooth or nearly so on both sides ; pani- cles long, many-flowered; berry small. — Rich woods, Florida to Mississippi, and northward. June. — Stem climbing high. Leaves 4' -7' wide. Panicle 6' -12' long, compound. Berry deep blue, very austere. * * Leaves and branches smoothish. 8. V. COrdifolia, Michx. (FROST GRAPE.) Leaves thin, broadly cor- date, entire or slightly 3-lobed, mucronate-serrate; pubescence, when present, soon vanishing ; panicles compound, many-flowered ; berry small. — River- swamps, Florida to Mississippi, and northward. May and June. — Leaves 3' - 6' wide. Berry almost black, very acid. — A form with broader incisely lobed and toothed leaves is V. riparia, Michx. 9. V. VUlpina, L. (MUSCADINE. BULLACE.) Leaves broadly cordate, toothed-serrate, smooth and glossy on both sides, or rarely, like the branches, pubescent, the sinus at the base broad and rounded, or narrow and acute ; panicle small; berry large. (V. rotundifolia, Michx.)— Banks of rivers, Florida to North Carolina, and westward. June. — Stem climbing high, with pale and smooth bark. Leaves 2' - 3' wide. Berry £'-|'m diameter, purple, pleasant- flavored. — A form with smaller leaves and berries, the latter very austere, is sometimes called the MUSTANG GRAPE. 2. AMPELOPSIS, Michx. Petals distinct, spreading, concave. Disk none. — Leaves digitate. Flowers clustered, in corymbose panicles. 72 RHAMNACE^E. (BUCKTHORN FAMILY.) 1. A. quinquefolia, Michx. (VIRGINIAN CREEPER.) — Low grounds, Florida and northward. June. — Stem climbing by lateral tendrils. Leaflets 5, oblong-obovate, serrate above the middle, smooth. Berry small, dark-blue. ORDER 39. RHAMNACE-3E. (BUCKTHORN FAMILY.) Trees or shrubs, with simple mostly stipulate leaves, and small regular perigynous greenish or whitish flowers. — Sepals 4-5, united below, val- vate in the bud. Petals alternate with the sepals, concave or hooded, sometimes wanting. Stamens opposite the petals, and inserted with them into the margin of a fleshy disk, which lines the base of the calyx. Ovary 1 - 4-celled, with a solitary erect anatropous ovule in each cell. Style single. Fruit drupaceous. Embryo large, in the axis of scanty fleshy albumen. Radicle inferior. Synopsis. * Drupe baccate, 1 - 2-celled. Ovary immersed in the disk. 1. SCUTIA. Petals 5, or none. Drupe 1-celled. Calyx adnate to the base of the ovary. 2. BERCHEMIA. Petals 5. Drupe 2-celled. Calyx free. * * Drupe baccate, separating into 2-4 nutlets. 3. SAGERETIA. Leaves opposite. Nutlets 3. Flowers spiked. 4. RHAMNUS. Leaves alternate. Seed furrowed on the back. Flowers clustered. 6. FRANGULA. Leaves alternate. Seed not furrowed. Flowers umbelled. * * * Drupe at length dry, separating into 3 nutlets. 6. CEANOTHUS. Flowers coryinbed. Calyx white. Nutlets 2-valved. 7. COLUBRINA. Flowers cymose. Calyx green. Nutlets opening at the inner angle. 8. GOUANIA. Flowers spiked. Woody vines. SCUTIA, Commers. Calyx-tube hemispherical or pitcher-shaped, with 5 acute lobes. Petals 5, in- serted into the margin of the disk, short-clawed, sometimes wanting. Ovary adhering to the disk below, 2-3-celled, with a single erect ovule in each cell. Style single, conical. Stigma 2-3-lobed. Fruit 1-celled, or separating into 2-3 one-seeded nutlets. Seeds without albumen. Radicle very short. — Shrubs, with alternate or opposite coriaceous entire 2-stipulate leaves, and small axillary flowers in simple umbels. 1 . S. ferrea, Brongn. Spineless ; mature leaves coriaceous, opposite or alternate, elliptical or obovate, emarginate, obtuse at the base, short-petioled ; stipules by pairs, ovate, minute ; flowers clustered, axillary, on short pedicels ; calyx-tube 5-angled, the lobes ovate ; ovary immersed in the thick 5-lobed disk, 2-celled, with an ascending ovule in each cell ; style very short ; stigmas 2, thick, erect; drupe 1-celled, 1 -seeded. (Rhamnus ferreus, Vahl. Zizyphus emargina- tus, Swartz.) — South Florida. — Branches opposite, whitish. Leaves pale, 1' long. RHAMNACE^E. (BUCKTHORN FAMILY.) 73 2. BERCHEMIA, Neck. SUPPLE-JACK. Calyx 5-cleft, the tube hemispherical. Petals 5, sessile, concave, as long as the calyx. Ovary free, 2-celled, half immersed in the fleshy disk. Styles united. Stigmas 2. Drupe oblong, 2-celled, 2-seeded. — Erect or twining shrubs, with alternate pin nately- veined leaves, with minute stipules, and small greenish axil- lary or panicled flowers. 1. B. VOlubilis, DC. Stem twining; leaves oblong, acute, wavy on the margins, glossy above, the simple veins oblique ; flowers in small terminal pan- icles ; drupe purple. (Zizyphus volubilis, Willd.} — Swamps, Florida to North Carolina, and westward. June. 3. SAGERETIA, Brongn. Calyx 5-cleft, the tube hemispherical, the lobes carinate within. Petals obo- vate, shorter than the calyx, concave. Ovary free, 3-celled. Stigmas 3, nearly sessile. Drupe baccate, composed of three even 1 -seeded indehiscent nutlets. Seeds not grooved. Cotyledons flat. — Slender trailing shrubs, with opposite branches and leaves, and minute whitish spiked flowers. 1. S. Michauxii, Brongn. Stem vine-like (6° -18° long), with spine- like spreading branches ; leaves (!' long) nearly sessile, ovate or oblong-ovate, acute, finely serrate, smooth and shining, persistent ; spikes slender, interrupted, mostly panicled ; petals minute ; drupe dark-purple, globose. (Rhamnus minu- tiflorus, Michx. ) — Dry sandy soil along the coast, Florida to North Carolina. September. — Drupes pleasantly acid. 4. RHAMNUS, Tourn. BUCKTHORN. Calyx 4 - 5-cleft, the tube urceolate, lined with a thin disk. Petals small, ob- ovate, concave, often wanting. Ovary free, 2-4-celled. Styles united below. Stigmas 2-4. Drupe baccate, composed of 2-4 somewhat dehiscent nutlets. Seeds grooved on the back. Raphe dorsal. Cotyledons leafy, revolute. — Shrubs, with alternate stipulate finely veined leaves, and small axillary clustered polygamous or dioecious greenish flowers. 1. R. lanceolatus, Pursh. Leaves oblong-lanceolate, acute, or those of the flowering branches oblong and obtuse, serrulate ; flowers clustered, on short pedi- cels, with long styles, or the more fruitful ones scattered on longer pedicels, and with short styles ; petals emarginate ; drupe 2-seeded. — Hills and river-banks, in the upper districts, Alabama and northward. June. — A tall shrub. Drupes black, as large as a grain of pepper. 5. FRANGULA, Tourn. Seeds not grooved. Raphe lateral. — Leaves strongly parallel- veined. Flow- ers perfect. Otherwise as in Rhamnus. 1. F. Caroliniana, Gray. (CAROLINA BUCKTHORN.) Leaves oblong, wavy and finely serrulate on the margins, the slender petioles and many-flowered short-stalked umbels pubescent ; petals 5, minute ; stigmas 3 ; drupe globose, 7 74 RHAMNACE^E. (BUCKTHORN FAMILY.) 3-seeded. (Rhamnus Carolinianus, Walt.) — Banks of rivers, Florida to North Carolina and westward. June. — A shrub or small tree. Leaves 3' - 4' long. 6. CEANOTHUS, L. JERSEY TEA. Calyx colored, 5-cleft, with the tube adnate to the ovary and persistent, the lobes connivent, deciduous. Petals 5, longer than the calyx, hooded, long-clawed. Stamens exserted. Style 3-parted. Drupe dry, composed of three 2-valved 1-seeded nutlets. Embryo in fleshy albumen. Cotyledons flat. — Shrubby plants, with alternate serrulate minutely stipulate 3-ribbed leaves, and small flowers in lateral and terminal corymbs or panicles. 1. C. Americanus, L. Branches pubescent ; leaves deciduous, variable in size, ovate or ovate-lanceolate, acute or obtuse, sharply serrate, more or less pubescent, petioled ; peduncles elongated, mostly 2-leaved above. — Dry woods, Florida to Mississippi, and northward. July. — Plant shrubby, l°-2°high. Leaves 3-ribbed, varying from f ' (C. intermedius, Ell.) to 3' long, often nearly smooth (C. herbaceus, Raf.). Flowers and pedicels white. 2. C. microphyllus, Michx. Stem erect, diffusely much-branched ; leaves perennial, small, obovate, slightly crenate, 3-ribbed, glossy above, with scattered hairs beneath ; those in the axils clustered ; corymbs small, terminal. — Dry barrens, Florida and Georgia, and westward. April and May. — Shrub l°-2° high, yellowish. Leaves 2" -3" long. Pedicels and flowers white. Drupe black. 3. C. serpyllifolius, Nutt. Decumbent, diffusely branched ; branches filiform ; leaves very small, ovate-elliptical, serrulate, obtuse, the lower surface, as wrell as the petioles, strigose ; peduncles axillary ; flowers few, in a simple corymbose head. — Near St. Mary's, Georgia. — Leaves 3" - 5" long. Pe- duncles 12-15-flowered. 7. COLUBRINA, Rich. Calyx herbaceous, with spreading lobes. Nutlets opening at the apex and down the inner angle. Embryo in thin albumen. Othenvise chiefly as in Ce- anothus. — Tropical shrubs, with alternate parallel-veined leaves, and small flowers in close axillary cymes. 1. C. Americana, Nutt. Leaves coriaceous, ovate-oblong, entire, the lower surface, as also the branches and calyx, covered with a dense rust-colored pubescence ; cyme small, shorter than the petiole ; petals spatulate, emarginate, shorter than the calyx ; drupe 3-lobed. — South Florida.'— Leaves 2' -4' long. Drupe 4" in diameter. 8. GOTTANIA, Jacquin. CHAW-STICK. Calyx 5-cleft, partly adnate to the ovary, the lobes spreading. Petals 5, shorter than the calyx, and inserted into the sinuses of the 5-lobed disk which lines its tube, hooded, and enclosing the short stamens. Ovary 3-celled, 3-ovuled. Style 3-cleft. Drupe dry, 3-lobed or 3-winged, separating from the central axis CELASTRACE^E. (STAFF-TREE FAMILY.) 75 into three valveless nutlets. Embryo in the axis of thin albumen. — Tropical, chiefly climbing shrubs, with alternate stipulate toothed leaves, and perfect or polygamous flowers in terminal spiked clusters. 1. G. Domingensis, L. Branches pubescent; leaves oblong-ovate, ta- pering into an obtuse point, serrate, petioled ; spikes elongated, bearing a tendril at the base ; drupe globose, 3-winged. — South Florida. — Leaves 2' - 4' long. Flowers minute, yellow. Lobes of the disk emarginate. ORDER 40. CEL.ASTRACEJS. (STAFF-TREE FAMILY.) Shrubs, with simple stipulate leaves, and small regular flowers. — Sepals and petals 4-5, imbricated in the bud. Stamens 4-5, alternate with the petals, and inserted with them on the disk which fills the bottom of the calyx. Ovary free, 1 - 5-celled, with 1 - several erect ovules in each cell. Styles united. Fruit capsular or drupaceous. Seeds often arilled. Embryo in the axis of the albumen. — Flowers perfect or polygamous. Synopsis. * Fruit a 1 - 2-seeded drupe. 1. MYGINDA. Ovary 4-celled. Stigmas 4. Drupe 1-seeded. Leaves opposite. Flowers perfect. 2. SCII^EFFERIA. Ovary 2-celled. Stigmas 2. Drupe 2-seeded. Leaves alternate. Flowers dioecious. * * Fruit a 3 - 6-valved capsule : seeds arilled. 3. EUONYMUS. Flowers perfect, in axillary cymes. Calyx flat. Leaves opposite. 4. CELASTRUS. Flowers polygamous, in terminal racemes. Calyx cup-shaped. Capsule globose. Leaves alternate. 5. MAYTENUS. Flowers axillary. Calyx flat. Capsule 3-angled. Leaves alternate. 1. MYGINDA, Jacq. Flowers perfect. Sepals 4, united below. Petals 4, roundish. Stamens 4. Ovary 4-celled, with a solitary anatropous ovule in each cell. Style short, 4-cleft. Drupe 1 -celled, 1-seeded. Seed erect. Embryo in thin albumen. Cotyledons flat. Eadicle inferior. — Tropical shrubs, with small opposite coriaceous leaves, and minute white or reddish flowers on axillary forking peduncles. l.M. Rhacoma, Swartz. Branches slender, pubescent, angled ; leaves ob- long, obtuse, crenate, nearly sessile, paler and often discolored beneath ; pedun- cles filiform, shorter than the leaves, cymosely 2 - 4-flowered ; calyx-lobes round, pubescent ; petals oval, concave, ciliate ; stigmas spreading ; drupe obovate. — South Florida. — A small shrub. Leaves £'- 1' long, glabrous. 2. M. ilicifolia, Lam. Branches terete^ pubescent; leaves smooth, round- ovate, spiny-toothed, short-petioled ; peduncles shorter than the leaves, umbel- lately 3 - 4-flowered ; calyx 4-toothed ; petals rounded ; drupe obovate, pointed with the persistent style.— South Florida. — A small shrub. Leaves £'-f long. 76 CELASTRACE^E. (STAFF-TREE FAMILY.) 3. M. ? latifolia, Swartz. Smooth ; branchlets 4-angled ; leaves opposite, coriaceous, obovate, rounded or emarginate at the apex, narrowed at the base into a short petiole, the margins revolute and obscurely crenate ; cymes axillary and terminal, shorter than the leaves, widely spreading, few-flowered, or in the more sterile plant many-flowered ; sepals roundish, much shorter than the oblong petals ; disk with four emarginate lobes alternating with the stamens ; ovary 2-celled, with a single suspended ovule in each cell ; stigma sessile, 2-lobed ; drupe ovoid, 1 -seeded; embryo large, in thin albumen. — South Florida.— Shrub 8° - 10° high. Leaves 1' long. 2. SCH^PFERIA, Jacq. Flowers dioecious. Sepals 4, barely united at the base, rounded, 3-furrowed. Petals 4, spatulate-oblong, much longer than the calyx. Stamens 4. Ovary 2-cclled. Stigmas 2, sessile. Drupe dry, 2-celled, 2-seeded. Embryo in oily albumen. Radicle inferior. — Shrubs or trees, with alternate leaves and small greenish flowers in axillary clusters. 1. S. frutescens, Jacq. Smooth; leaves obovate-oblong, entire, acute or obtuse ; flowers 3 - 5 in a cluster, the slender pedicels arising from a wart-like peduncle ; drupe globose. — South Florida. — A small tree with hard and close- grained wood. Leaves 1 £' long, pale green. 3. EUONYMUS, L. SPINDLE-TREE. Flowers perfect. Calyx flat, 4-5-clcft. Petals 4-5, spreading. Stamens 4-5, very short, inserted with the petals under the broad and fleshy disk which surrounds the ovary. Ovary 3-5-celled, with 2 erect or resupinate ovules in each cell. Style very short. Capsule 3-5-celled, loculicidally 3-5-valved. Seed enclosed in a red pulpy aril. — Erect or trailing shrubs, with 4-angled branches, opposite serrate leaves, and greenish or purplish flowers in axillary peduncled cymes. 1. E. Americanus, L. (STRAWBERRY BUSH.) Flowers greenish, pentamerous; peduncles 1 - 3-flowered ; capsule warty; leaves short-petioled, varying from ovate or obovate to linear-lanceolate, serrulate. — Low shady woods, Florida and northward. May and June. — Shrub 3° - §° high. Leaves 1'- 2' long. 2. E. atropurpureus, Jacq. Flowers purple, tetramerous ; peduncles many-flowered ; capsule smooth ; leaves oblong, on rather long petioles, serru- late. — River-banks, Florida and northward. May and June. — Shrub 8°- 12° high. Leaves 2' - 5' long. Flowers dark purple. 4. CELASTRUS, L. STAFF-TREE. Flowers somewhat dioecious. Calyx cup-shaped, 5-cleft. Petals 5, spreading. Stamens 5, inserted with the petals into the edge of the cup-shaped fleshy disk which fills the tube of the calyx, abortive in the fertile flower. Ovary 2-4- celled, the cells 2-ovuled. Style thick. Capsule, globose, commonly 3-celled STAPHYLEACE^. (BLADDER-NUT FAMILY.) 77 and 3-valvcd. Seeds 1 - 2 in each cell, enclosed in a fleshy scarlet aril. Embryo in the axis of copious fleshy albumen. — Climbing shrubs, with alternate leaves, and small greenish flowers in axillary or terminal racemes. 1. C. scandens, L. Leaves oblong-ovate or obovate, acuminate, serrate, smooth ; racemes terminating the branches, nearly simple ; capsule orange- colored. — Woods and banks of streams along the mountains of North Carolina, and northward. Juno. 6. MAYTENUS, Juss. Flowers polygamous. Calyx flat, 5-cleft. Petals 5. Stamens 5, very short, inserted with the petals under the edge of the flat circular disk which envelops the ovary. Ovary 2 - 3-celled, with a solitary erect ovule at the base of each cell. Style very short and thick. Stigma 2-3-lobed. Capsule coriaceous, 1 - 3-celled, loculicidally 2 - 3-valved, yellow within. Seeds 1-3, enclosed in a thin pulpy aril. Embryo in the axis of thin fleshy albumen. — Trees or shrubs. Leaves opposite or alternate. Flowers chiefly in axillary clusters. 1. M. phyllanthoides, Benth. Leaves fleshy, alternate, oblong-obo- vate, obscurely crenate and reticulate, glabrous ; flowers minute, clustered, ap- parently perfect; capsule obovate, 3-angled, 1 -celled, 1-3-seeded. — South Florida. — Leaves 1'- 1^' long. ORDER 41. STAPHYLEACE^E. (BLADDER-NUT FAMILY.) Erect shrubs, •with opposite pinnate stipulate leaves, and perfect regular pentandrous flowers. — Calyx 5-parted, colored. Petals and stamens 5, perigynous. Ovary 2 - 3-celled. Ovules 1 - 8 in each cell, attached to the central angle of the cell. Fruit capsular or baccate. Seeds bony, truncated at the base. Embryo straight in scanty albumen. 1. STAPHYLEA, L. BLADDER-NUT. Flowers perfect. Calyx erect, persistent. Petals obovate, erect, alternate with the sepals, imbricated in the bud. Stamens inserted with the petals into the edge of the 5-lobed disk which fills the base of the calyx. Ovary 3-celled, the cells sometimes separate above, 6 - 8-ovuled. Capsule 3-lobcd, mcmbrana- ceous, inflated, few-seeded. — Leaflets stipellate. Flowers white, in drooping compound racemes. 1. S. trifolia, L. Leaves trifoliolate ; leaflets ovate, acuminate, serrate, pubescent beneath, the terminal one long-stalked ; racemes lateral and terminal ; styles 3, connivent ; capsule reticulated, 1-3-seeded. — Damp woods, North Carolina, Tennessee, and northward. May. — Shrub 10° high. Capsules 2; long, 1' in diameter. 7* 78 SAPINDACE^E. (s OAF-BERRY FAMILY.) ORDER 42. SAPINDACE^E. (SOAP-BERRY FAMILY.) Trees or shrubs, rarely herbs, with exstipulate alternate or opposite leaves, and chiefly irregular and 7 - 9-androus flowers, imbricated in the bud. — Calyx 4-5-lobed. Petals 4-5, inserted with the stamens into a hypogynous or somewhat perigynous disk. Anthers opening lengthwise. Ovary 3-celled, the cells 1 - 2-ovuled. Seeds without albumen. Embryo mostly curved or convolute. Cotyledons incumbent, fleshy. Synopsis. TRIBE I. DODONE^S. —Ovules 2-3 in each cell. Embryo spirally coiled. Cotyledons distinct. — Leaves alternate. 1. DODON^IA. Ovules 2 in each cell. Petals none. Capsule 2 - 4-winged. TRIBE II. SAPINDEJE. — Ovules usually solitary. Embryo curved or straight. Coty- ledons distinct. — Leaves alternate. 2. HYPELATE. Ovules 2 - 3 in each cell. Petals 4-5, regular. Fruit drupaceous. 3. SAPINDUS. Ovules solitary. Petals 5, regular. Fruit baccate. 4. CARDIOSPERMUM. Ovules solitary. Petals 4, irregular. Fruit a bladder-like capsule. TRIBE III. HIPPOCASTANE.33. — Ovules 2 in each cell. Embryo roundish. Coty- ledons very thick and partly united. — Leaves opposite. 6. ^ESCULUS. Calyx 5-lobed. Petals 4 - 6, unequal. — Leaves digitate. 1. DODONJEA, L. Flowers perfect or polygamous. Calyx 3 - 5-parted. Petals none. Stamens 5-8: anthers thick, on short filaments. Ovary 3-4-celled, with 2 ovules in each cell; the upper one ascending, the lower pendulous. Styles united. Cap- sule membranaceous, 2 -4-winged, septicidally 2 -4-valved, the cells 1 - 2-seeded. Embryo spirally coiled. — Trees or shrubs, with chiefly simple leaves, and axil- lary or terminal whitish or greenish flowers. 1 . D. viscosa, L. Leaves viscid, oboyate-oblong, entire, parallel-veined ; racemes axillary and terminal, shorter than the leaves; capsule 3-winged, 3- seeded. — South Florida. — Shrubs 6° - 10° high. Flowers greenish. 2. HYPELATE, P.Browne. Calyx 3 -5-parted. Petals 4-5, regular. Stamens 6-10, inserted on the inner face of the cup-shaped disk which fills the base of the calyx. Ovary 2- celled, with 2-3 pendulous ovules in each cell. Styles united. Stigma 2-lobed. Drupe globose, 1- 2-seeded. Embryo erect.— Trees with alternate trifoliolate or abruptly pinnate leaves, and clustered or panicled polygamous flowers. 1. H. trifoliata, P.Browne. Leaves trifoliolate; leaflets obovate, coria- ceous, glabrous, entire ; panicles corymbose, slender, axillary, longer than the leaves, few-flowered; calyx 3-4-parted, pubescent within; petals 4, ciliate; drupe black, 1 -seeded. — South Florida. — A small tree, with brittle branches. Leaflets 1' long, with fine oblique parallel veins. Flowers small, white. Sta- mens 6-8. SAPINDACEJE. (SOAP-BERRY FAMILY.) 79 2. H. paniculata, Don. Leaves abruptly pinnate ; leaflets 2 or 4, ob- long, obtuse, entire, smooth, opposite ; panicles axillary and terminal, with com- pressed branches ; flowers hoary-tomentose ; calyx-lobes and petals 4, rounded; cells of the ovary 2-ovuled. (Melicocca paniculata, Juss. ?) — South Florida. Branches purplish, dotted with white. Leaflets 2' - 3' long. 3. SAPINDUS, L. SOAP-BERRY. Calyx 5-parted, deciduous. Petals 5, regular, with a scale at the base of each within. Stamens 8-10, inserted on the hypogynous disk. Styles united. Stig- mas 3. Ovary 3-celled, the cells 1-ovuled. Fruit baccate, globose or 2-3- lobed, 1-3-seeded. Seeds bony. Embryo incurved. — Trees, with abruptly pinnate leaves, and small polygamous flowers in axillary or terminal racemes or panicles. 1. S. marginatus, Wild. Petioles wingless; leaflets 9-18, opposite or Alternate, ovate-lanceolate, unequal-sided, strongly veined above ; panicles large, dense-flowered ; fruit globose. — Georgia and Florida, near the coast, and west- ward. — A tree 20° - 40° high. Flowers white. 4. CARDIOSPERMUM, L. Sepals 4, the 2 outer ones much shorter. Petals 4, irregular, each with a petal-like scale at the base within ; those of the 2 outer petals entire, the others with a crested appendage on the inner edge. Stamens 8. Disk 2-glandular. Cells of the ovary 1-ovuled. Style 3-cleft. Capsule 3-angled, 3-celled, locu- licidally 3-valved, inflated. Seed furnished with a cordate aril. — Herbs, climb- ing by tendrils. Leaves biternate. 1. C. Halicacabum, L. — South Florida, apparently native, and not un- common in cultivation. — Annual. Stem slender. Leaflets ovate-lanceolate, incisely lobed and toothed. Capsule pear-shaped, 1' in diameter. * 5. JESCULUS, L. ' HORSECHESTNTJT. BUCKEYE. Calyx 5-lobed, unequal. Petals 4- 5, unequal, clawed. Stamens 5-8, usu- ally 7, inserted on the annular hypogynous disk. Style slender. Ovary 3-celled, the cells 2-ovuled. Capsule coriaceous, 1 - 3-celled, loculicidally 2 - 3-valved, 1 - 3-seeded. Cotyledons very large and thick, partly united. — Trees or shrubs, with opposite long-petioled digitate leaves, and showy polygamous flowers, in terminal panicles. § 1. JEscuLUS proper. Fruit prickly. 1. JR. glabra, Willd. Stamens almost twice the length of the erect nearly equal pale yellow petals ; panicle oblong-ovate, loosely flowered ; leaflets 5, oval or oblong, acuminate, unequally serrulate, smooth or slightly pubescent beneath. (IE. pallida, Willd.) — Banks of rivers, Tennessee and northward. May and June. — A small tree with rough strong-scented bark. Flowers small. § 2. PA vi A. Fruit smooth. 2. JE. Pavia, L. Stamens slightly exserted; claws of the two upper 8(> ACERACE^E. (MAPLE FAMILY.) petals as long as the tubular calyx ; panicle oblong ; leaflets 5, varying from lanceolate to oval, short-acuminate, finely serrate, smooth, or nearly so, on both surfaces — Rich soil, Florida to North Carolina, and westward. March - May. — A shrub, or in the upper districts, a small tree. Flowers red. 3. JE. flava, Ait. Stamens included; claws of the lateral petals longer than the tubular-campanulate calyx ; panicle oblong, pubescent ; leaflets 5-7, obovate-oblong, acuminate, finely serrate, pubescent beneath.— Rich soil, in the middle and upper districts of Georgia to North Carolina and northward. April and May. — A shrub or small tree. Flowers pale yellow. JE. discolor, Pursh, is a form of this species with more strongly serrate leaflets, and flesh-colored or dull purple flowers. 4. JE. parviflora, Walt. Stamens 3 times as long as the corolla ; claws of the nearly similar petals longer than the obconical calyx ; panicle racemose, very long; leaflets 5 - 7, oval-obovate, tomentose beneath. (JE. macrostachya, Mchx.) — Upper districts of Georgia and South Carolina. April and May. — Shrub 3° - 9° high. Flowers white, Stamens 6 or 7. ORDER 43. ACERACE^S. (MAPLE FAMILY.) Trees or shrubs, with opposite palmately lobed or pinnate exstipulate leaves, and regular mostly polygamous or dioecious flowers, with an imbri- cated aestivation. — Calyx 4-9-lobed. Petals as many as the lobes of the calyx, or none. Stamens 4-12, inserted with the petals into a hypogy- nous disk. Ovary 2-celled, with 2 pendulous amphitropous ovules in each cell, forming in fruit a double 2-seeded samara. Styles 2. Seeds with little or no albumen. Embryo folded or spirally coiled. 1. ACER, L. MAPLE. Flowers polygamous. Petals usually 5-8, or none. Stamens 4-12. — Leaves simple, palmately lobed. Flowers clustered or racemose. * Flowers in terminal racemes, appearing after the leaves. 1. A. Pennsylvanieum, L. (STRIPED MAPLE.) Racemes simple, drooping; flowers (15-25) large ; petals obovate ; leases slightly cordate, with 3 acuminate finely serrate lobes ; samara large. (A. striatum, Lam.) — Banks of mountain streams, Georgia and northward. May. — A shrub or small tree, with striped bark. Flowers greenish. 2. A. spicatum, Lam. (MOUNTAIN MAPLE.) Racemes compound, erect ; flowers small, very numerous ; petals linear-spatulate ; leaves cordate, 3-lobed, coarsely serrate ; samara small. — With the preceding. — Shrub 6° - 10° high. Leaves pubescent beneath. * * Flowers on long and drooping umbellate or corymbose pedicels, developed from lateral and terminal buds. 3. A. saceharinum, Wang. (SUGAR MAPLE.) Leaves cordate, with 3-5 acute or acuminate sinuate-toothed lobes, paler and slightly pubescent be- MALPIGHIACE^E. (MALPIGHIA FAMILY.) 81 neath ; flowers umbellate-corymbcd, appearing with the leaves ; calyx bell-shaped, fringed on the margin, nearly as long as the stamens ; petals none. — Rich soil, chiefly in the upper districts, and northward. April and May. — A large tree. Leaves 3' -5' wide. Var. Floridanum. Leaves truncate or slightly cordate at the base, with 3-5 obtuse and obscurely 3-toothed lobes ; flowers umbellate, appearing before the leaves ; calyx short, cup-shaped, hairy, one third as long as the stamens. — Upland woods, Middle Florida. March and April. — A small tree. Leaves, flowers, and fruit scarcely half as large as in the ordinary form. * * * Flowers on short and erect clustered pedicels, developed from lateral buds, and appearing before the leaves : fruiting pedicels long and drooping. 4. A. dasycarpum, Ehrh. (SILVER MAPLE.) Leaves cordate, 3-5- lobed, sharply toothed and serrate, white beneath ; petals none ; samara large, woolly when young. — Banks of rivers, Florida to Mississippi, and northward. February and March. — A tree 30° - 50° high, with soft wood. Flowers yel- lowish. 5. A. rubrum, L. (RED or SWAMP MAPLE.) Leaves 3-5-Iobed, or undivided, smooth or pubescent, either cordate or rounded, or sometimes acute at the base, toothed and serrate, white beneath ; petals oblong or linear ; samara small, smooth. — Swamps, Florida to Mississippi, and northward. February and March. — A small tree. Flowers and fruit red. 2. NEGUNDO, Mcench. ASH-LEAVED MAPLE. Flowers dioecious. Calyx minute. Petals none. Stamens 4-5, hypogynous. — A small tree, with smooth green bark. Leaves pinnately 3 - 5-foliolate, the leaf- lets ovate or oblong, lobed or toothed. Flowers small, greenish ; the sterile ones on long and drooping clustered pedicels, the fertile ones racemose, both from lateral buds appearing with or before the leaves. 1. N. aceroides, Mrench. (Acer Negundo, L.) River-banks, Florida and northward. March and April. ORDER 44. MAL.PIGHIACEJE. (MALPIGHIA FAMILY.) Trees or shrubs, with opposite simple dotless and mostly stipulate leaves, and regular racemose or corymbose flowers on usually jointed pedicels. — Calyx 5-parted. Petals 5, alternate with the calyx-lobes, unguiculate, sometimes wanting. Stamens 10, alternate with the petals, and inserted with them into a hypogynous disk : anthers roundish. Ovary solitary, mostly 3-lobed, consisting of three more or less united carpels. Styles 3, distinct or united. Fruit composed of one to three 1-seeded cells or car- pels. Seeds pendulous, without albumen. Cotyledons thick or leafy. 82 POLYGALACEJE. (MILKWORT FAMILY.) 1. BYRSONIMA, Rich. Calyx with 10 glands at the base without. Petals 5. Stamens monadelphous at the base. Styles 3. Fruit drupaceous, 3-celled, 3-seeded. — Racemes termi- nal, simple or branched. 1. B. lucida, Rich. Smooth; stem much-branched; leaves coriaceous, wedge-obovate, obtuse, entire, short-petioled, shining above, paler beneath, vein- less ; racemes erect, bracted, simple, twice the length of the leaves ; pedicels slender, spreading ; petals yellow, orbicular-cordate, wavy, long-clawed ; drupe smooth, globose. — South Florida. — A small shrub. Leaves 1' long. Drupe as large as a grain of pepper. ORDER 45. POLYGALACE^E. (MILKWORT FAMILY.) Herbs or shrubs, with entire exstipulate leaves, and irregular hypogy- nous monadelphous or diadelphous flowers. — Anthers 1 -celled, opening by a terminal pore. Ovary 2-celled, with a single anatropous pendulous ovule in each cell. Seeds often carunculate. Embryo straight in scanty albumen. Radicle superior. 1. POLYGALA, L. MILKWORT. Sepals 5, persistent, unequal ; the two lateral ones (wings) larger and petal-like. Petals 3, more or less united ; the middle one (keel) larger, and usually crested at the apex. Stamens 8, rarely 6, united into a tube, or into two equal sets, and also with the claws of the petals. Style curved, clavate. Stigma terminal or lateral. Capsule 2-celled, 2-seeded. Seeds suspended, carunculate. — Chiefly herbs. Leaves alternate or whorled. Flowers in terminal spikes or racemes, rarely axillary, or radical and imperfect § 1. Flowers in globose or oblong more or less compact spikes. * Spikes corymbose : biennials. 1. P. cymosa, Walt. Stem tall, simple ; leaves scattered, linear, acute, the upper bract-like, the lowest long (6' -9') and crowded; corymbs simple or compound ; wings oblong, abruptly acute ; seeds minute, globose-obovate, smooth ; caruncle none. (P. corymbosa, Ell. P. acutifolia, Torr. fr Gray. P. graminifolia, Poir. P. attenuata, Nutt.) — Pine barren ponds, Florida to North Carolina, and westward. July. — Stems 2° - 4° high. Corymbs very large and compound, or small and simple. Flowers yellow, turning dark green in drying. Plant yellowish. 2. P. ramosa, Ell. Stem low, simple, or branching and leafy from the base to the summit ; leaves fleshy, lanceolate, acute, scattered, the lowest spatu- late-obovate, obtuse, crowded ; corymbs compound, fastigiate ; wings ovate- lanceolate, acuminate ; lobes of the caruncle small, roundish, embracing the base of the minute oval hairy seed. (P. corymbosa, Nutt. P. cymosa, Poir.) — Low open pine barrens, Florida to Mississippi, and northward. July- Septem- ber. — Stems 6' - 12' high. Flowers yellow, turning green in drying. POLYGALACE^E. (MILKWORT FAMILY.) 83 3. P. Baldwin!!, Nutt. Stem angled, simple ; leaves alternate, lanceolate, acute, the lowest spatulate ; corymbs compound; spikes dense; wings ovate- lanceolate, tapering into a long and slender point ; seeds very small, globose, hairy; caruncle minute. —Low pine barrens, Georgia, Florida, and westward. July and August. — Stem 1°- l£° high. Leaves £'- 1' long. Flowers white, fragrant. * * Spikes solitary : leaves alternate. •*- Flowers yellow : biennials. 4. P. lutea, L. (YELLOW BACHELOR'S-BUTTON.) Stem simple or with spreading branches ; leaves lanceolate, acute, the lowest clustered, spatulate- obovate, obtuse ; spikes dense, globose or oblong ; wings elliptical, abruptly pointed ; lobes of the caruncle nearly as long as the obovate sparse-hairy seed. — Low pine barrens, Florida to Mississippi, and northward. June - August. — Stem 6'- 12' high. Flowers orange-yellow. 5. P. nana, DC. Low ; stems divided at the base into several short pe- duncle-like branches ; leaves chiefly radical, clustered, spatulate or linear, obtuse ; spikes thick, at length cylindrical, the earliest ones sessile ; wings ovate-lance- olate, acuminate ; lobes of the caruncle half as long as the obovate hairy seed. (P. viridescens, Nutt.) — Low sandy pine barrens, Florida to South Carolina, and westward, flowering throughout the year. — Stems 2'-4; high. Spikes 1 ' - 2' long. Flowers yellow. •»- -i- Flowers purple or rose-color : annuals : stems branching. 6. P. sanguinea, L. Leaves oblong-linear, acute ; spikes ovate or round- ish, obtuse ; flowers imbricated ; wings broadly ovate, obtuse, sessile ; lobes of the caruncle rather shorter than the pear-shaped sparse-hairy seed. (P. pur- purea, Nutt,) — Low grounds, North Carolina and northward. July -Sept. — Stems 1° high. Flowers reddish-purple. Bracts persistent. 7. P. fastigiata, Nutt. Stems slender, at first simple; leaves narrow- linear, acute ; spikes globose, obtuse ; wings oblong-obovate tapering into a dis- tinct claw at the base ; caruncle as long as the stalk of the sparse-hairy pear- shaped seed. (P. sanguinea, Torr. $- Gray.) — Low pine barrens, Florida to North Carolina, and westward. July -Oct. — Stems 10' -15' high. Leaves erect. Flowers small, bright rose-color. Bracts deciduous. 8. P. Nuttallii, Carey. Leaves short, linear, obtuse ; spikes oblong, acute, dense ; wings short, elliptical, slightly clawed ; lobes of the caruncle col- lateral, one third as long as the obovate very haiiy seed. (P. sanguinea, Nutt. P. ambigua, Torr. $* Gray.) — Dry sandy soil, North Carolina and northward. August. — Stem 4' -8' high, the branches fastigiate. Spikes and greenish and purple flowers smaller than in No. 7. Bracts persistent. 9. P. Chapman!!, Torr. & Gray. Stems slender, at length sparingly branched ; leaves scattered, narrow-linear, acute ; spikes long, lanceolate, acute, loose-flowered ; wings obovate, short-clawed ; lobes of the caruncle spreading, as long as the stalked base of the pear-shaped very hairy seed. — Low pine barrens near the coast, West Florida and westward. June -August. — Stems 1°-1^° high. Spikes 1'- 2' long. Flowers bright-purple. Bracts persistent. 84 POLYGALACE^:. (MILKWOBT FAMILY.) 10. P. incarnata, L. Stem often simple, glaucous ; leaves scattered, lin- ear, fleshy, sometimes minute and subulate ; spikes lanceolate, acute, dense- flowered ; petals united into a tube which is twice as long as the elliptical wings, conspicuously crested ; caruncle spongy, as long as the stalk of the oval hairy seed. — Dry sandy soil, Florida to Mississippi, and northward. June - August. — Stem 1°- 2° high. Bracts deciduous. Flowers and often the rachis purple. 11. P. setacea, Michx. Stems simple or sparingly branched, slender; leaves minute, scale-like ; spikes oblong, dense-flowered, acute ; wings oblong, acute, as long as the petals ; caruncle and seeds as in No. 10. — Low pine bar- rens, Florida to North Carolina, and westward. May - July. — Stem 1 ° high. Spikes £'- lf long. Flowers pale rose-color or whitish. Bracts deciduous. # # * Spikes solitary : leaves whorled : flowers purple. 12. P. cruciata, L. Stem erect, 4-angled, simple or branched; leaves in fours, linear or oblong-linear, thick, obtuse, the upper ones alternate ; spikes large, ovate, becoming cylindrical, short-peduncled ; wings ovate, tapering into a long subulate point ; lobes of the caruncle linear, collateral, as long as the smoothish oval seed. — Pine-barren swamps, Florida to Mississippi, and north- ward. July - Oct. — Stem 6' - 1 2' high. Spikes 1 ' - 2' long, |' thick. Flowers pale rose-color. Bracts persistent. 13. P. brevifolia, Nutt. Stem weak, 4-angled, with long and spreading branches ; leaves thin, lanceolate or linear, acute, the lower ones in fours ; spikes small, ovate, long-peduncled ; wings lanceolate-ovate, barely pointed ; caruncle as long as the obovate hairy seed. — Bogs, Florida and northward. July - Oct. — Stem 1°- 1£° long. Spikes scarcely half as large as in the preceding. Flowers reddish-purple. Bracts persistent. 14. P. Hookeri, Torr. & Gray. Stems short, weak, much branched, 4- angled; leaves in fours, short, linear, acutish; spikes long-peduncled, ovate- lanceolate, acuminate, loose-flowered; wings erect, lanceolate-ovate, acute; caruncle as long as the ovoid sparse-hairy and viscid seed. — Low grassy pine barrens, West Florida and westward. July - Sept. — Stems 6'- 10' high. Leaves 4" - 6" long ; those of the branches mostly alternate. Flowers pale rose-color. Bracts persistent. § 2. Flowers in slender racemes or spikes. * Leaves alternate: perennials or biennials. 15. P. grandiflora, Walt. Pubescent; stems branching ; leaves lanceo- late ; flowers large, crestless, scattered in long racemes ; fruiting pedicels droop- ing ; wings large, orbicular, erect ; caruncle enclosing the stalk of the oblong hairy seed. (P. pubescens, Muhl.) — Varies with smoothish linear leaves, and smaller flowers. (P. flabellata, Shuttl.) — Dry light soil, Florida to South Car- olina, and westward. July -Sept. 1|. — Stem 1° high. Racemes 3'- 6' long, often lateral by the prolongation of the stem. Flowers bright purple, turning greenish. 16. P. polygama, Walt. Smooth; stems numerous, simple; leaves oblong-linear, the lowest spatulate or obovate ; flowers of two kinds, viz. one POLYGALACEJE. (MILKWORT FAMILY.) 85 kind showy and perfect, borne in a loose terminal raceme, the other imperfect, but fruiting, in radical (rarely axillary) spikes; wings obovate ; caruncle half as long as the obovate very hairy seed. (P. rubella, Mold.) — Wet or dry sandy barrens, Florida to Mississippi, and northward. May and June. @ Stems 6'- 12' high, very leafy. Racemes 2' -6' long. Flowers purple. 17. P. Senega, L. (SENECA SNAKEROOT.) Stems several from a thick woody root, erect or ascending, simple or branching above ; leaves numerous, lanceolate, the upper ones acute (!' long) ; spike cylindrical, pedunclcd; wings rotmd-obovate, as long as the capsule ; lobes of the caruncle linear, as long as the obovate hairy seed. — Var. LATIFOLIA, Torr. & Gray. Stem taller ( 1° - U°) ; leaves large (2' -4' long), ovate or ovate-lanceolate, acute or acuminate at each end. — Dry rocky woods in the upper districts of North Carolina and northward ; the variety in Tennessee, and northward. May and June. 1J. — Stems 8' -12' high. Spikes 1 '- 1 £' long. Flowers greenish-white. 18. P. alba, Nutt. Stems several from a somewhat woody rdbt, erect or ascending, angular, at length branched above ; leaves linear, narrowed toward the base, acute, or lowest ones obtuse ; spike long-peduncled, linear-lanceolate, acuminate ; flowers short-pedicellcd ; wings oval, rather longer than the capsule ; lobes of the caruncle shorter than the oblong-obovate very hairy seed. (P. bicolor, Kunth.) — Interior of Alabama, Buckley, and westward. — Stems £°-l°high. Spikes 1'- 3' long. Flowers white. Bracts deciduous. * * Leaves ichorled : flowers small, greenish or white, in slender spikes. 19. P. Boykinii, Nutt. Perennial; stems numerous, angled, simple or sparingly branched ; leaves 4 - 5 in a whorl, the lower ones oblong-obovate, the upper lanceolate and scattered ; spike linear, long-pcduncled ; wings obovate, as long as the capsule ; caruncle half as long as the oblong-obovate curved and very hairy seed. — Rich calcareous soil, Florida, Georgia, and westward. May- July. 1|. — Stems l°-2° high. Leaves 1'long. Spikes 2' -3' long. Flowers white. 20. P. verticillata, L. Annual ; stems low, 4-angled, much branched ; leaves 4 - 5 in a whorl, linear, acute, the upper ones scattered ; spikes lanceolate ; wings roundish, as long as the capsule ; lobes of the caruncle half as long as the oblong hairy seed. — Dry sandy soil, Florida to Mississippi, and northward. June - Aug. — Stem 4' - 8' high. Spikes £' - 1' long. Flowers greenish- white. 21. P. leptostachys, Shuttl. Annual; stems filiform or setaceous, sim- ple, or branched above, straight ; leaves remote, 4-5 in a whorl, narrow-linear or filiform, acute ; spike linear, long-peduncled ; wings oval, nearly sessile, smaller than the capsule ; caruncle half as long as the smooth curved clavate- obovate seed. — Dry sand hills, Florida. May - August. — Stems 10'- 15' high. Flowers greenish. § 3. Flowers axillary, and with imperfect radical ones, as in No. 16. 22. P. paucifolia, L. Perennial ; flowering stems erect, simple, leafy at the summit ; leaves large, ovate, alternate, narrowed into a petiole, the lower ones bract-like ; flowers (1-3) peduncled, crested, very large ; wings obovate ; 8 86 LEGUMINOS^E. (PULSE FAMILY.) lobes of the caruncle subulate, varying in length ; seeds hairy ; radical spikes bracted. — Mountains of Georgia and northward. May. — Stems 4' -6' high, from a long prostrate base. Flowers |' long, purple. ORDER 46. KRAMERIACE^E. (RHATANY FAMILY.) Silky-pubescent herbs or shrubs, with diffuse stems, alternate leaves, and irregular hypogynous purplish flowers, on axillary 2-bracted and jointed peduncles. — Sepals 5, colored, deciduous. Petals 5, shorter than the sepals; the 3 posterior ones, long-clawed, often united; the 2 anterior broad, sessile and fleshy. Stamens 4, the posterior ones distinct or united. Anthers 2-celled, opening by a terminal pore. Ovary 1-celled, 2-o\niled. Fruit 1-seeded, woody, indehiscent, armed with hispid prickles. Albumen none. Radicle concealed in the cotyledons. 1. KRAMERJA, Locfl. Characters of the order. 1. K. lanceolata, Torr. Herbaceous; stems slender, prostrate, mostly branching ; leaves lanceolate or linear, acute ; peduncles longer than the leaves, leafy-bracted above the middle ; claws of the posterior petals, and stamens, united ; fruit globose, downy, armed with few strong spreading spines. — Tampa Bay, South Florida, and westward. — Eoot long and woody. Stems 1° long. ORDER 47. L.EGUMINOSA3. (PULSE FAMILY.) Herbs, shrubs, or trees, with chiefly compound alternate stipulate leaves, and papilionaceous or regular perigynous or hypogynous flowers. — Sepals 5, more or less united. Petals 5, rarely fewer, or none. Stamens mona- delphous, diadelphous, or distinct. Ovary simple, free, forming a legume in fruit. Seeds without albumen. Leaves almost always with entire mar- gins. Synopsis* Suborder I. PAPILIONACE^E. Corolla of 5 (rarely fewer) irreg- ular petals, inserted into the base of the calyx, rarely perigynous, imbri- cated in the bud, mostly papilionaceous; viz. one upper and exterior, termed the vexillum or standard; two lateral, called wings; and two lower and interior, oftener united by their contiguous margins, forming together the keel. Stamens 10 (rarely 5), separate, monadelphous, or diadelphous (9 & 1, or 5 & 5). Legume 1-celled (sometimes partly 2-celled by the in- troversion of the sutures), or several-celled by transverse partitions. Style simple. Cotyledons thick. TRIBE I. LOTEJE. Corolla papilionaceous. Stamens 10 (except No. 8). Legume con- tinuous (not jointed). Cotyledons leafy in germination. — Stems (except No. 12) not twining, nor climbing. LEGUMINOSJE. (PULSE FAMILY.) 87 * Stamens monadelphous : anthers of 2 forms. Leaves simple, or palmately compound. 1. CKOTALARIA. Calyx 5-lobed. Legume inflated. Upper stipules decurrent. 2. LUPINUS. Calyx 2-lipped. Legume flattened. Stipules not decurrent. * * Stamens diadelphous : anthers alike. Leaves trifoliolatc, rarely palmate or pinnate, the earliest ones alternate. 3. MEDICAGO. Legume membranaceous, curved or coiled, 1 - many-seeded. Flowers racemed. 4. MELILOTUS. Legume coriaceous, straight, rugose or veined, 1 - 4-seeded. Flowers racemed or spiked. 5. TRIFOLIUM. Legume smooth, membranaceous, l-4-$eeded. Flowers capitate. 6. HOSACKIA. Legume straight, many -seeded. Peduncle 1 - 3-flowered. * * * Stamens monadelphous or diadelphous. Legume mostly 1-seeded and indehiscent. Plants dotted with small dark glands. Earliest leaves opposite. H- Legume included in the calyx. 7. PSORALEA. Corolla papilionaceous. Stamens 10, diadelphous : half of the anthers of ten imperfect. 8. PETALOSTEMON. Stamens 6, united into a cleft tube, and adnate to the claws of four of the nearly regular petals. 9. DALEA. Stamens 9 or 10, the tube partly adnate to the claws of the petals. ••- t- Legume exserted. 10. AMORPIIA. Stamens 10, monadelphous. Wings and keel none. * * * * Stamens mostly diadelphous. Legume 1 - many-seeded, 1-celled, 2-valved. Leaves pinnate. •*- Trees or shrubs. 11. ROBINIA. Legume flat and thin, margined on one edge. Trees or shrubs. 12. WISTARIA. Legume nearly terete, coriaceous, contracted between the seeds. Twining shrubs. t- H- Herbs. 13. TEPHROSIA. Calyx 5-cleft. Vexillum large. Legume compressed, many-seeded. Leaves unequally pinnate. 14. INDIGOFERA. Calyx minute, 5-cleft. Vexillum small. Legume terete or angled, 2 - many-seeded. Leaves unequally pinnate. 15. GLOTTIDIUM. Calyx truncate. Legume oblong, 2-seeded. Leaves abruptly pinnate. 16. SESBANIA. Calyx 5-toothed. Legume very long and slender, many-seeded. Leaves abruptly pinnate. ***** Stamens diadelphous. Legume 2-celled lengthwise, or 1-celled, with one of the sutures turned inward. Leaves pinnate. 17. ASTRAGALUS. Stamens 10, diadelphous. Legume tumid. TEIBE II. VICIEJE. Stamens diadelphous (9 & 1). Legume 2-valved, not jointed. Cotyledons thick and fleshy, remaining under ground in germination. — Climbing vines ; the petioles of the pinnate leaves ending in a tendril. 18. VICIA. Style filiform, bearded at the apex, or on the side facing the keel. 19. LATHYRUS. Style flattened, bearded on the side facing the vexillum. TRIBE III. HEDYSAREJE. Stamens monadelphous or diadelphous. Legume sepa- rating transversely into 1-seeded indehiscent reticulated joints, or 1-jointed. — Stems not twining. * Flowers yellow. 20. ^ESCHYNOMENE. Leaves pinnate. Stamens diadelphous (5 & 5). Flowers perfect. 21. ZORNIA. Leaves palmately compound. Legume 2 - 5- jointed. Flowers perfect. 22. STYLOSANTHES. Leaves trifoliolate. Anthers of 2 forms. Flowers monoecious. 23. CHAPMANNIA. Leaves pinnate. Anthers alike. Flowers monoecious. * * Flowers white or purplish. 24. LESPEDEZA. Legume 1-jointed. Peduncles axillary. 88 LEGUMINOS^E. (PULSE FAMILY.) 25. DESMODIUM. Legume 2 - 6-jointed, bristly. Racemes terminal. TRIBE IV. PHASEOL.E.3E. Stamens monadelphous or diadelphous (9 & 1). Leg- ume 2-valved, not jointed. Cotyledons thick and fleshy ; usually raised above ground in germination. — Chiefly twining vines. * Ovary 1-2-ovuled. 26. RHYNCHOSIA. Legume oblong. Flowers yellow. Leaves trifoliolate. * * Ovary few or many-ovuled. t- Keel spirally twisted. 27. APIOS. Leaves pinnate, not stipellate. 28. PHASEOLUS. Leaves trifoliolate, stipellate. f- *- Keel straight. Leaves trifoliolate (except one species of Galactia). •H- Legume terete, torulose. 29. VIGNA. Flowers yellow. Vexillum roundish. Stems twining. 30. ERYTHRINA. Flowers scarlet. Texillum narrow, elongated. Stems erect. •H- -H- Legume flattened. = Bracts opposite. Vexilium very large. • 31. CLITORIA. Calyx tubular, 5-toothed. Vexilium spurless at the base. 32. CENTROSEMA. Calyx short, 5-cleft. Vexilium spurred at the base. = = Bracts alternate. 33. AMPHICARP^LA. Calyx 4 - 6-toothed. Flowers of two kinds. Bracts persistent 34. GALACTIA. Calyx 4-cleft. Bracts deciduous. Legume linear. 35. CANAVALIA. Stamens monadelphous. Calyx bilabiate. Hilum linear. Legume three- ridged on the back. 36. DOLICHOS. Stamens diadelphous (9 & 1). Calyx 5-cleft. Hilum oval. TRIBE V. DAI.BERGIEJE. Stamens 10, monadelphous or diadelphous. Legume indehiscent. Cotyledons thick and fleshy. — Trees or shrubs. 37. PISCIDIA. Legume compressed, 4-winged. Leaves pinnate. TRIBE VI. SOPHORE^E. Stamens 10, separate. Legume not jointed. — Erect herbs, shrubs, or trees. * Legume dehiscent. 38. BAPTISIA. Stamens deciduous. Legume inflated, stipitate, few-seeded. Leaves simple or trifoliolate. 39. THERMOPSIS. Stamens persistent. Legume nearly sessile, flattened, many-seeded. Leaves trifoliolate. 40. CLADRASTIS. Stamens persistent. Legume flat, few-seeded. Leaves pinnate. Tree. * * Legume indehiscent. 41. SOPHORA. Legume moniliform. Leaves pinnate. Shrubs. SUBORDER IT. C^SALPINIE^S. Corolla irregular and somewhat papilionaceous, or almost regular, imbricated in the bud \ the upper petal interior. Stamens separate. Embryo straight. 42. CIRCIS. Flowers perfect, somewhat papilionaceous. Calyx 5-toothed. Leaves simple. 43. CASSIA. Flowers perfect, irregular. Calyx deeply 5-parted. Anthers dissimilar. Leaves pinnate. 44. GLEDITSCHIA. Flowers polygamous, almost regular. Calyx 3 - 5-parted. Leaves pin- nate and bipinnate. SUBORDER III. MIMOSE^E. Corolla regular, hypogynous, valvate in the bud. Stamens distinct or united, often very numerous, inserted with the petals. Embryo straight. — Leaves pinnate or 2 - 3-pmnate. Flow- ers polygamous. LEGUMINOS^E. (PULSE FAMILY.) 89 * Flowers perfect and stainiuato. Petals united. 45. MIMOSA. Filaments distinct. Legume jointed, flat. 46. SCHRANKIA. Filaments distinct. Legume not jointed, echinate. 47. PITHECOLOBIUM. Filaments united into a tube below. Legume broad and flat, mealy or pulpy within. * * Flowers perfect and neutral. Petals distinct. 48. DESMANTHUS. Sterile filaments filiform. Legume linear, many-seeded. 49. NEPTUNIA. Sterile filaments flat or petal-like. Legume oblong, few-seeded. SUBORDER I. PAPIL.IONACEJE. PULSE FAMILY. 1. CROTALARIA, L. RATTLE-BOX. Calyx 5-lobed. Vexillum cordate : keel falcate. Stamens monadelphous. Anthers alternately oblong and roundish. Capsule inflated, oblong, many- seeded. — Low herbs, with simple leaves ; the upper ones with broad decurrent inversely sagittate stipules. Racemes opposite the leaves. Flowers yellow. Legumes dark-purple. 1. C. sagittalis, L. Annual ; stems low, branching, shaggy with rust- colored spreading hairs ; leaves nearly sessile, oval or oblong, hairy ; racemes short, 2 - 3-flowered. — Barren sandy soil, Florida and northward. June and July. — Stem 3' - 6' high. Racemes 2' - 3' long. 2. C. ovalis, Pursh. Perennial ; stems several, branching, prostrate or as- cending, rough with appressed hairs ; leaves short-petioled, oval or oblong, hairy ; racemes long, 3- 6-flowered. — Dry pine barrens, Florida to North Carolina, and westward. May- July. — Stem 6' -12' high. Racemes 4' -6' long. Flowers distant. 3. C. Purshii, DC. Perennial ; stems slender, erect, roughened with scat- tered appressed hairs ; leaves thick, smooth above, the lower ones oblong, the upper linear ; racemes long, 5 - 10-flowered. — Flat grassy pine barrens, Florida to South Carolina, and westward. May and June. — Stem 12'- 18' high. Ra- cemes 6' - 12' long. Flowers distant. 2. LUPINUS, Tourn. LUPINE. Calyx 2-lipped, 5-toothed. Vexillum with the sides reflexed. Keel falcate, acute. Stamens monadelphous, with alternate anthers oblong and roundish. Capsule oblong, compressed, many-seeded ; the seeds often separated by cellular partitions. — Herbs, with simple or palmately 5 - many-foliolate leaves, and showy flowers in terminal racemes. 1 . L. perennis, L. Stem pubescent, erect ; leaves palmately 7 - 9-folio- late ; leaflets obovate-oblong, obtuse, more or less hairy ; stipules minute ; ra- cemes long, loosely many-flowered ; flowers purplish or purplish-blue, rarely white. — Var. GRACILIS (L. gracilis, Nutt.) is a more slender and hairy form, with smaller and narrower, often acute leaflets. — Dry sandy soil, Florida to Mississippi, and northward. April and May. 1J. — Stem 1°- l£° high. 2. L. villosus, Willd. — Biennial ; villous and hoary; stems thick, pros-^ trate or ascending; leaves simple, lanceolate-oblong, mostly acute, long-petioled ; 8* 90 LEGUMINOSJE. (PULSE FAMILY.) stipules linear-subulate, elongated, adnate below to the petioles ; racemes erect, densely many-flowered ; flowers pale red, the vexillum dark purple in the centre ; legume very woolly. — Dry sandy barrens, Florida to North Carolina. April. — Stems 1° - 2° long. Leaves (with the petiole) 6' -8' long. 3. L. difiustlS, Nutt. Perennial ; silky-tomentose and hoary ; stems pros- trate or erect, much branched ; leaves simple, oblong or obovate, obtuse, short- petioled ; stipules short, often wanting on the branches ; racemes many-flowered ; flowers blue, the vexillum dark purple in the centre ; legume woolly. — Dry sand-ridges, Florida to North Carolina. April and May. — (Stems 1° - 2° high. Leaves 2' -4' long. 3. MEDICAGO, L. Calyx 5-cleft ; the lobes subulate or setaceous. Corolla deciduous. Vexillum longer than the partly united wings and keel. Stamens 10, diadelphous (9 & 1), equal. Style smooth. Legume falcate or coiled, 1 -many-seeded. — Herbs or shrubs. Leaves trifoliolate. Stipules adnate to the petioles, mostly incised. Flowers yellow, in axillary spikes. 1. M. lupulina, L. Pubescent ; stem procumbent ; leaflets obovate, toothed ; stipules nearly entire ; spikes globose, many-flowered ; flowers mi- nute; legumes reniform, 1 -seeded, black. — Waste places, Florida and north- ward. Introduced. (I) — Stem l°-2° long. 4. MELILOTUS, Tourn. MELILOT. SWEET CLOVER. Calyx 5-toothed ; the teeth long and equal. Corolla deciduous. "Wings and keel cohering. Stamens diadelphous (9 & 1). Legume ovoid, coriaceous, veiny or rugose, longer than the calyx, 1 - 4-seeded, scarcely dehiscent. — Smooth herbs. Leaves trifoliolate. Leaflets often toothed. Stipules adnate to the petioles. Flowers yellow or white, in axillary racemes. 1. M. oflQ-Cinalis, Willd. Stem erect, branching ; leaflets obovate-oblong, toothed ; flowers yellow ; vexillum striped with brown, as long as the keel and wings ; legume obovate, rugose. — Cultivated ground. Introduced. © and (f) — Stems l°-3° high. Legumes drooping, 2-seeded. 2. M. .alba, Lam. Stem erect, branching ; leaflets oblong, truncate, ser- rate; racemes elongated ; flowers white ; vexillum longer than the wings and keel ; legumes ovate, rugose, 1-seeded. (M. leucantha, Koch.) — Cultivated grounds. Introduced. (2) — Legumes drooping. 5. TRIPOLIUM, L. CLOVER. Calyx 5-cleft ; the teeth subulate or setaceous. Corolla withering or persist- ent ; the keel shorter than the wings, and united with them by their claws. Sta- mens diadelphous (9 & 1). Legume smooth, membranaceous, 1-6-seeded, often shorter than the calyx, scarcely dehiscent. — Tufted or diffuse herbs. Leaves trifoliolate, the leaflets mostly toothed. Stipules adnate to the petioles. Flow- *ers (in our species) capitate. LEGUMINOS.^. (PULSE FAMILY.) 91 * Fruiting calyx erect. 1. T. pratense, L. (RED CLOVER.) Hairy; stems erect; leaflets ob- long-ovate or oval, often emarginate, slightly serrulate ; heads large, ovate ; calyx -teeth setaceous, hairy; flowers purple. — Around dwellings. Introduced, but scarcely naturalized, at least in the low country. — Stems 1°- 2° high. Leaves usually marked with a pale 3-angled spot above. 2. T. arvense, L. (RABBIT-FOOT CLOVER.) Softly pubescent ; stems erect ; leaflets linear-oblong, minutely 3-toothed ; heads oblong ; calyx-teeth se- taceous, plumose ; corolla white, with a purple spot on the wings. — Old fields, chiefly in the upper districts. Introduced. ® — Stems 8' - 12' high. * * Fruiting calyx reftexed. 3. T. reflexum, L. (BUFFALO CLOVER.) Pubescent ; stems ascending ; leaflets roundish or obcordate, toothed, the uppermost oblong ; heads globose ; calyx-tube very short, the subulate teeth long and hairy ; vexillum broadly ovate, purple; the wings and keel white; legume 3-5-seedcch — "Waste places and pastures, Florida to North Carolina, and northward. April and May. (f) and (f) — Stems 6' - 12' long. Heads large. 4. T. repens, L. (WHITE CLOVER.) Smooth; stems creeping; leaf- lets roundish or obcordate ; heads globose, long-peduncled ; calyx- teeth short ; flowers white ; legume 4-seeded. — Pastures and around dwellings. Introduced. May. 1J. — Stems G'-12' long. 5. T. procumbens, L. Pubescent; stems slender, erect or procumbent; leaflets small, thin, obovate or obcordate, toothed, the middle one stalked ; heads small, ovate; flowers yellow; legume 1-seeded. — Waste places ; more common in the upper districts. Introduced. © — Stems 6'- 12' long. 6. T. Carolinianum, Michx. Pubescent ; stems tufted, prostrate ; leaf- lets small, obcordate, slightly toothed ; heads roundish, long-peduncled ; flowers white, tinged with purple ; vexillum acute; legume 4-seedcd. — Fields and pas- tures, Florida to North Carolina, and westward. March and April. 1J. — Stems 6'- 10' long ; in shady places erect. 6. HOSACKIA, Dougl. Calyx 5-cleft. Vexillum as long as the keel and spreading wings. Stamens diadelphous (9 & 1). Legume cylindrical or compressed, smooth, wingless, many-seeded. — Herbs. Leaves trifoliolate or pinnate. Stipules mostly minute and gland-like. Peduncles 1 - several-flowered. 1. H. Purshiana, Benth. Hairy; stem much branched ; leaves trifolio- late, with oblong leaflets ; peduncle 1-flowered, longer than the leaves ; keel acute ; bracts simple ; legume linear, nearly terete. — North Carolina. — Stem 12' - 1 5' high. Flowers rose-color. 7. PSOBALEA, L. Calyx campanulate, 5-cleft, with the lobes acute. Stamens diadelphous or partly monadelphous : half of the anthers often imperfect. Legume often 92 LEGUMINOS^E. (PULSE FAMILY.) wrinkled, 1-seeded, indchiscent, included in the calyx. — Perennial usually glandular herbs. Stipules cohering with the petioles. Flowers axillary or ter- minal, purplish or white, racemose or spiked. * Leaves 1 - 3-folioIate. 1 . P. virgata, Nutt. Smoothish ; stem virgate, sparingly branched ; leaves very remote, 1- (or the lowest 2-3-) foliolate ; leaflets linear or oblong-linear, obtuse, the lower ones broader and long-petioled ; stipules setaceous ; peduncles much shorter than the leaves ; spikes dense, cylindrical ; bracts ovate, acumi- nate, and, like the calyx, glandular and hairy ; corolla violet. — Near St. Mary's, Georgia, and the adjacent parts of Florida. July. — Stem 2° high. Leaflets 2' -5' long. 2. P. melilotoides, Michx. Glandular and sparingly pubescent ; leaves trifoliolate ; leaflets oblong-lanceolate or elliptical ; stipules subulate; spikes ob- long, on peduncles 2-3 times as long as the leaves; bracts ovate, acuminate, veiny; corolla violet ; legume rugose. — Var. 1. (P. eglandulosa, Ell.) Gland- less or nearly so ; bracts ovate-lanceolate, and, like the calyx, villous. — Dry soil, Florida to Tennessee, and westward. May and June. — Stem l°-2° high. Leaflets 1'- 2' long. 3. P. Onobrychls, Nutt. Pubescent ; leaves trifoliolate ; leaflets ovate, acuminate ; racemes elongated, somewhat secund ; calyx glandular, the teeth small, obtuse, equal ; legume ovate, muricate, wrinkled transversely. — Near Spartanburg, South Carolina. June and July. — Stem 3° - 5° high. Leaves very large. 4. P. canescens, Michx. Hoary-pubescent ; lower leaves trifoliolate, the upper simple, short-petioled ; leaflets obovate, glandular ; racemes longer than the leaves, few-flowered ; calyx inflated ; flowers blue, turning greenish ; legume even. — Dry pine barrens, Florida to North Carolina. April and May. — Stem bushy, 2° high. Resembles a Baptisia, * * Leares palmately 5 -7 -foliolate. 5. P. Lupinellus, Michx. Smooth ; stem slender, declining, sparingly branched ; leaflets filiform ; racemes longer than the leaves, loose-flowered ; flowers violet ; legumes rugose. (P. Floridana, Shuttl.) — Dry pine barrens, Flor- ida to North Carolina. May and June. — Stem 2° long. Leaflets 2' -3' long. 6. P. subacaulis, Torr. & Gray. Nearly stemless ; peduncles, petioles, and calyx white with spreading hairs ; leaves 7-foliolate, long-petioled ; leaflets obovate-oblong, smoothish above, fringed on the margins and midrib beneath ; peduncles longer than the leaves, rigid ; spikes dense, ovate or oblong ; bracts ovate, acuminate ; calyx-teeth obtuse. — Rocky hills, near Nashville, Tennessee. April and May. — Leaflets 1' long. Peduncles 4' - 6' long. Flowers numerous, purple. * * i* Leaves pinnate. 7. P. multijuga, Ell. Stem branching ; leaflets numerous (9-10 pairs), oblong-lanceolate, obtuse, pubescent ; spikes oblong ; bracts small, membrana- ceous, without glands. — Abbeville District, South Carolina. — Stem 1 ° - 2° high. Leaflets small. Bracts half as long as the calyx. Flowers violet. LEGUMINOS^E. (PULSE FAMILY.) 93 8. PETALOSTEMON, Michx. Calyx nearly equally 5-toothed or 5-cleft. Petals almost regular, on filiform claws, four of them united with the tube of stamens, the fifth free, cordate or oblong, folded. Stamens 5, united into a cleft tube. Ovary 2-ovuled. Legume indehiscent, 1 -seeded, included in the calyx. — Perennial glandular herbs, with unequally pinnate leaves, and white or purple flowers in terminal spikes or heads. * Spikes solitary. 1. P. gracile, Nutt. Stems decumbent, virgate; leaflets 5-7, oblong- linear, obtuse ; spikes oval, becoming cylindrical in fruit, peduncled ; vexillum broadly cordate — Low pine barrens, Florida and westward. August. — Stems 2° long. Leaflets £' long. Flowers white. 2. P. carneum, Michx. Stems erect, much branched, very leafy j leaf- lets 5-7, linear, acute ; spikes oblong, long- peduncled ; vexillum oblong. — Dry sandy soil. Florida and Georgia, westward. — Stems 2° - 3° high. Flowers white or reddish. * * Spikes corymbose. « 3. P. corymbosum, Michx. Stems clustered, erect, very leafy ; leaflets 3-7, filiform; teeth of the calyx setaceous, plumose ; vexillum oblong. — Va- ries with more numerous (11-15) oblong leaflets which are commonly emargi- nate at the apex. — Dry pine barrens, Florida to North Carolina, and westward ; the variety in the low country of South Carolina, Curtis. Sept. and Oct. — Stems 2° high. Flowers white. 9. DALEA, L. Calyx 5-cleft. Corolla imperfectly papilionaceous ; petals clawed ; four of them united with the tube of stamens below the middle, the fifth (vexillum) free, cordate, and inserted into the bottom of the calyx. Stamens 10, united into a cleft tube. Legume 1-seeded, membranaceous, indehiscent, included in the calyx. — Mostly glandular herbs, with spiked or capitate flowers. 1. D. alopecuroides, Willd. Stem erect, smooth ; leaves pinnate, with numerous linear-oblong leaflets ; spikes dense, cylindrical, silky-villous ; corolla small, pale violet, the vexillum white. — Rich soil, Alabama, northward and westward. July. — - Stem 1° - 2° high. 10. AMORPHA, L. Calyx obconical, 5-toothed, persistent. Vexillum straight, concave. Wings and keel none. Stamens monadelphous at the base, exserted. Legume 1-2- seeded, oblong, curved, glandular-roughened, indehiscent or nearly so. — Shrubs, with unequally pinnate leaves, and numerous leaflets which are punctate with pellucid dots. Flowers blue or white, in slender racemes or spikes. 1. A. fruticosa, L. Pubescent; leaves petioled ; leaflets 15-21, oblong, obtuse or emarginate, sparingly dotted ; flowers racemed, blue ; calyx-teeth very short, nearly equal, pubescent ; legume 1 - 2-seeded. — Banks of rivers, Florida 94 LEGUMINOS^E. (PULSE FAMILY.) to Mississippi, and northward. May and June. — Shrub 6° -15° high. Leaf- lets !'-!£' long. Racemes mostly panicled. 2. A. herbacea, Walt. Pubescent or glabrous ; leaves short-petioled ; leaflets 15-35, rigid, oval or oblong, conspicuously dotted; racemes spicate, sin- gle or panicled ; calyx-teeth villous ; the two upper ones short and obtuse, the lower more or less elongated and acute ; legume 1 -seeded. (A. pumila, Michx. A. pubescens, Willd. A. Caroliniana, Crooin.) — Low pine barrens, Florida to North Carolina, and westward. June and July. — Shrub 2° - 4° high, with pur- ple branches. Leaflets smaller and more crowded than in No. 1. Flowers blue or white. 3. A. canescens, Nutt. Hoary-tomentose ; leaves sessile; leaflets nu- merous, small, elliptical, crowded ; spikes short, panicled, dense-flowered ; calyx- teeth acute, nearly equal; legume 1 -seeded. — Near Augusta, Georgia, and westward. July and August. — Shrub 1° - 2° high. Flowers bright blue. 11. ROBINIA, L. LOCUST. Calyx short, 5-toothed or 5-cleft, the two upper teeth shorter and more or less united. Vexillum large, roundish ; keel obtuse. Stamens diadelphous (9 & 1). Style bearded on the side facing the vexillum. Legume compressed, many- seeded, the seed-bearing suture margined. Seeds flat. — Trees or shrubs, often with stipular spines, unequally pinnate leaves, and showy white or rose-colored flowers in axillary racemes. 1. R. Pseudacacia, L. (LOCUST. FALSE ACACIA.) Smoothish ; spines small on the older branches, straight; leaflets 9-17, oblong-ovate, or elliptical ; racemes pendulous, oblong, many-flowered ; flowers white ; legume 4-6-seeded. — Rich soil, in the upper districts. April and May. — A tree 30°- 60° high, with hard and durable wood. Racemes 3' -5' long. Calyx spotted. Legume smooth. Flowers fragrant. 2. R. viSGOSa, Vent. Branches, petioles, peduncles, and legumes glandular- viscid ; spines very small ; leaflets 1 1 - 25, ovate and oblong, obtuse or slightly cordate at the base, paler and pubescent beneath, tipped with a short bristle ; flowers crowded in roundish erect racemes, rose-color ; legume 3 - 5-seeded. — Banks of streams, on the mountains of Georgia and Carolina. May and June. — A tree 20° - 40° high. Flowers inodorous. 3. R. hispida, L. Branches, &c. more or less bristly ; stipules very slen- der and bristle-like, deciduous ; leaflets 11-18, smooth, ovate or oblong-ovate, rounded or slightly cordate at the base, tipped with a long bristle ; flowers large, in a loose and mostly pendulous raceme, bright rose-color. — Mountains of Geor- gia and North Carolina, botli the ordinary form and the var. ROSEA, Pursh, with pubescent branches and few-flowered racemes. May. — Shrub 3° - 8° high. Var. Elliottii. Branches, &c. pubescent ; stipular spines very stout, spread- ing or recurved. (R. hispida, var. rosea, Ell)— Pine barrens in the central parts of Georgia and southward. — Shrub 3° -5° high, with thick and rigid branches. A still smaller form, scarcely a foot high (var. nana, Ell), is found at Columbia, South Carolina. LEGUMINOS^E. ( PULSE FAMILY.) 95 12. WISTARIA, Nutt. Calyx campanulate, somewhat 2-lippcd ; the upper lip broad, 2-cleft, the lower 3-cleft. Vcxillum large, with 2 parallel ridges at the base. Stamens diadclphous (9 & 1). Legume coriaceous, nearly terete, contracted between the seeds, at length 2-valved. — Twining shrubs, with unequally pinnate leaves, and showy purple flowers, in a crowded raceme. 1. W. frutescens, DC. Young leaves and branches silky-pubescent; leaflets 9-13, ovate-lanceolate or oblong; stipels none; racemes on short branches, dense-flowered. (Thyrsanthus frutescens, Ell.) — Margins of swamps, Florida to North Carolina, and west to Mississippi. April and May. — Leaflets 1' long. Racemes 4' -6' long, 2' -3' in diameter. Legume 1 - several-seeded. Bracts large, caducous. 13. TEPHROSIA, Pers. Calyx nearly equally 5-cleft or 5-toothed. Vexillum large, roundish, spread- ing or reflexcd, usually white within, and reddish or purple and silky without ; keel obtuse, cohering with the wings. Stamens monadelphous or diadclphous. Style smooth or laterally bearded. Legume compressed, linear, many-seeded. — Perennial herbs, with unequally pinnate leaves, with the leaflets opposite mucro- nate apd straight-veined, and white or purplish flowers. * Flowers single or by pairs in the axils of the leaves; the uppermost often crowded in a dense raceme. 1. T. Virginiana, Pers. (GOAT'S RUE.) Soft-hairy and somewhat hoary ; stems very leafy, clustered, erect, simple ; leaflets 1 1 - 25, oblong or linear-oblong, acute or obtuse, smoothish above ; flowers yellowish-white tinged Avith purple. — Dry pine ban-ens, Florida to Mississippi, and northward. June and July. — Stems 1° - 2° high, from long and slender roots. Flowers showy. * * Flowers in long-peduncled racemes opposite the leaves : vexillum pubescent externally. 2. T. spicata, Torr. & Gray. Hirsute or villous with rusty hairs ; stems simple or diffusely branched ; leaves scattered, short-petioled ; leaflets 9 - 15, oval or cuneate-oblong, rounded and strongly mucronate at the apex, smooth- ish above; racemes 2-3 times as long as the leaves, 6-10-flowered ; lobes of the calyx linear-subulate ; flowers large, white and purple. (T. paucifolia, Nutt. Galega villosa, Michx.) Varies with linear, acute, and rcflexed leaflets, the odd one elongated. — Dry soil, Florida to North Carolina, and westward. June and July. — Stems 1° -2° long. 3. T. hispidula, Pursh. Hoary-pubescent or smoothish ; stems slender, terete, erect or procumbent ; petiole shorter than the lowest leaflets ; leaflets 11- 15, small (4" -6" long), oblong, acute or obtuse, often smooth above ; peduncles slender, terete, commonly longer than the leaves, 2 - 4-flowered ; flowers small, purple. — Dry sandy soil, Florida to North Carolina, and westward. June and July. — Stems 6' -18' long. 4. T. chrysophylla, Pursh. Prostrate, rusty pubescent ; stems diffusely branched; leaves sessile or nearly so, short (l'-l|' long) ; leaflets (yellowish) 96 LEGUMINOSJ2. (PULSE FAMILY.) 5-7, cuneate-obovatc, obtuse or emarginatc, smooth above ; peduncles longer than the leaves, terete, 2- 3-flowered ; calyx-teeth short, acute. — Varies with smaller (£'- 1' long) leaves and flowers, the latter mostly solitary on the short peduncles. — Dry pine barrens, Florida, Georgia, and westward. — Stems 6'- 18' long. 5. T. ambigua, M. A. Curtis. Hoary-pubescent, or nearly smooth ; stems decumbent, angled ; leaves scattered, long-petioled (5' -6' long) ; leaflets 7-15, distant, wedge-oblong, truncate or emarginate at the apex, paler and often smooth above, purplish and strongly veined beneath ; peduncles flattened, equal- ling or exceeding the leaves, few-flowered ; calyx-teeth short, acute ; flowers white and purple. — Dry sandy soil, Florida to North Carolina. June and July. 6. T. angUStissima, Shuttl. Smooth or nearly so throughout; stems slen- der, prostrate, diffusely branched ; leaves short-petioled ; leaflets 10-15, linear, acute, mostly opposite ; racemes very slender, longer than the leaves, bearing 2-4 small scattered flowers ; calyx slightly pubescent, with triangular-ovate acute teeth. — South Florida, Rugel— Stem 1° long. Leaflets 8" -12" long, 1" wide, spreading. Corolla about 3" long. 14. INDIGOPERA, L. INDIGO. Calyx 5-cleft. Vexillum roundish. Keel with a subulate spur on each side, often elastically reflexed. Stamens diadelphous (9 & 1). Legume 1 -many- seeded. Seeds usually truncated at each end, often separated by membrana- ceous partitions. — Herbs with unequally pinnate leaves, and white, brownish, or purplish axillary flowers. Legumes drooping. * Racemes longer than the leaves, — Indigenous species. 1. I. Caroliniana, "Walt. Smoothish; stem erect, tall, branching ; leaf- lets 10-15, obovate or oblong; racemes many-flowered; calyx-teeth short, acute; flowers yellowish-brown; legume oblong, veiny, 2-seeded. — Dry pine barrens, Florida to North Carolina. July and August. 1J. — Stem 3° -5° high. Flowers small. Legume 4" -5" long. 2. I. leptosepala, Nutt. Rough hairy; stem decumbent; leaflets 7-9, obovate-oblong or cuneate ; racemes 6-15-flowered ; calyx-teeth slender-subu- late ; flowers pale-scarlet ; legume linear, even, 6 - 9-seeded. — Georgia, Nuttall, South Florida, Blodyett, and westward. — Stem 2° -3° long. Legume 1|' long, straight. * * Racemes shorter than the leaves. — Introduced species. 3. I. tinctoria, L. Stem erect; leaflets 9-11, oval, pubescent beneath; legume terete, torulose, curved. — Waste places. August. 4. I. Anil, L. Stem erect; leaflets 7 -15, oval; legume compressed, even, thickened at each suture. — Waste places. These two species were formerly cultivated in some of the States, and em- ployed in the manufacture of indigo. LEGUMINOSJE. (rULSE FAMILY.) 97 15. GLOTTIDIUM, Dcsv. Calyx campanulate, obliquely truncate, 5-toothed. Vcxillum short, reniform. Stamens diadelphous (9 & 1). Style short, incurved at the apex. Stigma acute. Legume oblong, stipitate, compressed ; the membranaccous endocarp at length separating from the coriaceous epicarp, and enclosing the two oblong seeds. — A tall smooth-branching annual, with abruptly pinnate leaves, and yel- low flowers in axillary often compound racemes. 1. G. Floridanum, DC. (Sesbania vesicaria, Spreng.} — Damp soil, Florida to South Carolina, and westward. August. — Stem 2° - 8° high. Leaf- lets numerous, oblong-linear. Legume 1' - 2' long. Plant yellowish-green. 16. SESBANIA, Pers. Calyx 2-bracted, campanulate, equally 5-toothed. Vexillum roundish. Keel obtu«c. Stamens diadelphous (9 & 1) ; the tube toothed at the base. Legume slender, elongated, knotted. — Herbs or shrubs. Leaves abruptly pinnate. Leaf- lets numerous. Flowers yellow or reddish, in axillary racemes. 1. S. macrocarpa, Muhl. Annual, smooth ; leaflets oblong-linear, ob- tuse, mucronate ; racemes shorter than the leaves, 1 -4-flowered ; legume curved, compressed, 4-sided, many-seeded. — Swamps, Florida to South Carolina, and westward. August and September. — Stem 5° -12° high. Legume 8' -12' long, pendulous. Flowers yellow and red, dotted with purple. 17. ASTRAGALUS, L. MILK-VETCH. Calyx 5-toothed ; the 2 upper teeth separated. Vexillum as long as the wings and obtuse keel. Stamens 10, diadelphous. Legume commonly turgid, few - many-seeded, usually partly or completely 2-cellcd by the introversion of one or both of the sutures. — Herbs with unequally pinnate leaves, and Axillary spiked or racemose flowers. * Legume partly or completely ^-celled by the introversion of the dorsal suture, 1. A. Canadensis, L. Tall, pubescent ; leaflets 21-31, oblong, obtuse; stipules ovate, clasping ; peduncles as long as the leaves, closely many- flowered ; calyx-teeth subulate; legume inflated, oval, terete, 2-celled. — r Mountains of Georgia and North Carolina, and northward. June -August, ty — Stem 2° -3° high. Leaflets 1' - 1^' long. Flowers |' long, pale yellow. 2. A. glaber, Michx. Stem tall, nearly smooth; leaflets 15-25, oblong- linear, pubescent beneath ; stipules minute, spreading ; spikes longer than the leaves, loosely many-flowered ; calyx-teeth broad and short ; legume curved, ob- long, flattened edgewise, 2-celled. — Dry pine barrens, Florida to North Caro- 'lina. April. 1J. — Stem 2° high. Leaflets 6" -8" long. Flowers white. 3. A. obcordatUS, Ell. Smoothish ; stems prostrate ; leaflets small, 17-25, obcordate; peduncles as long as the leaves, loosely 8-15-flowered; legumes crescent-shaped, compressed, veiny, partly 2-celled. — Dry sandy bar- rens, Florida, and the lower parts of Georgia. April- June. 1|. — Stems 6'-12' long. Leaflets 3" - 4" long. Flowers pale purple. 98 LEGUMINOS^:. (PULSE FAMILY.) 4. A. Tennesseensis, Gray. Villous with white hairs ; stems pros- trate or ascending ; leaflets about 20, oblong or linear-oblong, obtuse or emar- ginate, smooth above, more or less hairy beneath; stipules ovate-lanceolate, adnate to the petioles ; peduncles as long as the leaves ; racemes somewhat capi- tate, 10-15-flowered; calyx-teeth subulate, much shorter than the tube; legume oblong, curved, thick and fleshy, reticulate-rugose when dry, 2-celled, many- seeded, at length smoothish. — Hills near Nashville, Tennessee, Lesquereux, and Lagrange, Alabama, Prof. Hatch. March and April, ty — Stems 4' - 6' long. Flowers 8" - 9" long, apparently -purple. * *• Legume 1-celled; the ventral suture thickened and sometimes slightly injlexed. 5. A. villoSUS, Michx. Villous and hoary ; stems prostrate ; leaflets about 13, oval or oblong, commonly emarginate ; stipules lanceolate, peduncles as long as the leaves ; racemes ovate, dense-flowered ; calyx-teeth longer than the tube- legume oblong, curved, 3-angled, eAren, 1-celled. (Phaea villosa, jVutt.) — Dry pine barrens, Florida to South Carolina. April and May. 1|. — Stems 4' - 6' long. Flowers small, dull yellow. 18. VICIA, Toura. VETCH. TARE. Calyx tubular, 5-cleft, the two upper teeth usually shorter. Style filiform, hairy at the apex, or on the side facing the keel. Legume 2 - many-seeded, 2- valved. Seeds orbicular. Cotyledons thick. — Slender climbing herbs. Leaves pinnate ; the petiole terminating in a tendril. Stipules mostly semi-sagittate. Flowers axillary. * Peduncles shorter than the leaves, 1 - ^-flowered. 1. V. sativa, L. (VETCH or TARE.) Pubescent; stem simple; leaflets 10-12, varying from obovate-oblong to linear, emarginate; flowers by pairs, nearly sessile, ^ale purple ; legume linear, several-seeded. — Cultivated grounds. Introduced. © — Corolla £' long. Stem 1° -2° long. 2. V. micrantha, Nutt. Smooth ; leaflets 4-6, linear, obtuse or barely acute ; peduncles 1 - 2-flowered ; flowers minute, pale blue ; legume sabre-shaped, 4 - 10-seeded. — Banks of rivers and shaded places, West Florida to North Ala- bama, and westward. April. @ — Stems 2° - 3° long. Seeds black. * * Peduncles commonly longer than the leaves, 3 - many-flowered. 3. V. hirSUta, Koch. Hairy; leaflets 12-14, oblong-linear, truncate; peduncles 3 - 6-flowered, about as long as the leaves, calyx-teeth equal ; flowers small, bluish-white ; legume short, oblong, 2-seeded. (V. Mitchell!, Raf. Er- vum hirsutum, L.) — Cultivated ground. Introduced. April and May. 4. V. acutifolia, Ell. Smooth ; leaflets about 4, linear or rarely oblong, acute or truncate ; peduncles 4 - 8-flowered, usually longer than the leaves ; flowers pale blue, the keel tipped with purple ; legume linear, 4 - 8-seeded. — Damp soil near the coast, Florida and Georgia. March - May. 1|. — Stems angled, 2° - 4° long, branching. 5. V. Caroliniana, Walt. Smoothish; leaflets 8-12, linear or linear- oblong, obtuse or barely acute ; stipules small, subulate ; peduncles many-flow- LEGUMINOS^E. (PULSE FAMILY.) 99 ered ; calyx-teeth shorter than the tube ; flowers nearly white, the keel tipped with blue ; legume oblong, several-seeded. — Dry open woods, chiefly in the upper districts. April and May. 1J. — Stems 3° - 4° long, branching. Flowers 4" - 6" long. 19. LATHYRTJS, L. Style flattened, bearded on the side facing the vcxillum. Otherwise as in Vicia. 1. L. pusillus, Ell. Annual; leaflets 2, linear-lanceolate, acute ; stipules sagittate ; peduncles elongated, 1 - 2-flowered ; teeth of the calyx subulate-seta- ceous, nearly equal; legume long, 10-15-seeded. — Near Charleston, South Carolina, and westward. May. — A small and slender vine. Flowers purple. 2. L. venosus, Muhl. Perennial; stem stout; leaflets 10-14, oblong- ovate, obtuse; stipules lanceolate; peduncles 10-20-flowered ; flowers large, purple ; calyx-teeth very unequal. — Shady banks, Georgia to Mississippi, and northward. June and July. — Stem angled, 2° - 3° long. Leaflets 2' - 3' long. Flowers |' long. 3. L. myrtifolius, Muhl. Perennial; stem slender, 4-angled; leaflets 4-6, oblong, obtuse ; stipules large, ovate, entire ; peduncles 3 - 6-flowered ; flowers pale purple; calyx-teeth unequal. — Banks of rivers, North Carolina, and northward. July and August. — Stem 2° -4° long, often wing-angled. Leaflets 1^' long. 20. ^SCHYNOMENE, L. Calyx 2-lipped, 5-cleft or 5-toothed. Petals equal : vexillum roundish. Sta- mens diadelphous (5 & 5). Legume compressed, stipitate, separating trans- versely into 3 or more 1-seeded indehiscent joints. — Herbs or shrubs, with pin- nate leaves, and axillary yellow flowers. 1 . JE. hispida, Willd. Annual ; stem erect, muricate-hispid ; leaflets nu- merous, oblong-linear ; peduncles 3 - 5-flowered ; legume straight, linear, even along the upper suture, wavy on the lower, 6 -10-jointed, the joints nearly square, hispid. — Swamps, Florida to Mississippi, and northward. August. — Stem 2° -4° high. 2. JE. viscidula, Michx. Annual ; stem slender, prostrate, viscid-pubes- cent; leaves small; leaflets 7-9, obovate, reticulate-veined; peduncles 3-4- flowered, the pedicels long and spreading ; stipules and bracts ovate ; legume 2-3-jointed, the joints half-orbicular, hispid. — Sandy places along the coast, Florida and Georgia. August and Sept. — Stem l°-2° long. Leaves 1' long. Flowers small. 21. ZOBNIA, Gmel. Calyx 2-lipped, the upper lip emarginate, the lower 3-cleft. Corolla inserted into the base of the calyx. Stamens monadelphous, alternately shorter : anthers alternately oblong and globose. Legume compressed, with 2-5 roundish hispid joints. — Herbs. Leaves palmately 2 - 4-foliolate. Stipules sagittate. Flowers yellow, in axillary large-bracted racemes. 100 LEGUMINOS- pedicels short and bractless ; ovary smooth, or slightly pubescent on the edges ; legume small, ovoid, slender-pointed. — Sand-hills, near Aiken, South Carolina, Ravenel. June and July. — Stem 2° -3° high. Leaflets £'-|' long. Plant nearly unchanged in drying. Apparently allied to No. 3. 9. B. Lecontei, Torr. & Gray. Pubescent ; stem diffusely branched ; leaves small, short-petioled ; leaflets cuneate-obovate ; stipules subulate and ca- 112 LEGUMINOS.E. (PULSE FAMILY.) ducous, or the lower ones larger and persistent ; racemes numerous, short, few- flowered, somewhat leafy at the base ; bracts ovate-lanceolate, persistent ; flowers small, on long 2-bracted pedicels ; ovary villous ; legume smajl, ovoid, slender-pointed. — Dry sandy soil, Florida and the southern parts of Georgia. May and June. — Stem 2° high. Leaflets 1' long. Plant unchanged in drying. 10. B. Serenae, M. A. Curtis. Very smooth, branching ; leaves petioled ; leaflets oblong-obovate, cuneate ; flowers in a long loose central raceme, and in short racemes terminating the branches ; pedicels longer than the calyx in fruit ; segments of the calyx villous on the inside ; legume oblong, inflated, the stipe longer than the calyx. — Society Hill, South Carolina, Curtis. May and June. — Stem diffusely branched, 1°- 2° high. Leaflets 1' long. Legume 8" long. Allied to No. 7 and No. 1 1 . Plant unchanged in drying. H- ••- Flowers white. 11. B. alba, R. Brown. Smooth and glaucous ; branches slender, flexu- ous, horizontal ; leaves all distinctly petioled ; leaflets thin, cuncate-lanceolate or oblong, obtuse ; stipules and bracts minute, caducous ; raceme usually solitary, central, very long, those on the branches few-flowered ; legume cylindrical. — Damp soil, Florida to North Carolina, and westward. April. — Stem 2° -3° high, often purple. Leaflets 1' long. Racemes l°-3°long. Corolla ^' long. Plant unchanged in drying. 12. B. leucantha, Torr. & Gray. Smooth and glaucous ; branches spreading j leaves short-petioled ; leaflets oblong and obovate, obtuse ; stipules lanceolate, as long as the petioles, deciduous ; racemes central, and terminating the branches, long, many-flowered ; ovary smooth ; legume large, oblong, much inflated, long-stipitate. — River-banks, Florida to South Carolina, and westward. March and April. — A stouter plant than the preceding, with larger leaves and flowers, changing blackish in drying. Legumes 1 1' long. 13. B. leucophsea, Nutt Hairy or smoothish ; stem stout, angled; leaves short-pctiolcd ; leaflets varying from oblanceolate to obovate, rigid, re- ticulate, soon smooth above ; stipules and bracts leafy, ovate-lanceolate, per- sistent ; racemes stout, declined, 1 -sided ; flowers large, yellowish-white, on long and slender erect pedicels ; ovary villous ; legume ovtoid, long-pointed. (B. bracteata, Muhl.} — Dry rich oak woods, "Wrightsboro, Georgia, and westward. April. — Stem low, with widely spreading branches. Racemes 4' -12' long. Flowers 1' long, the vexillum spotted with brown. Plant turns black in drying. H— H— H— Flowers blue. 14. B. australis, R. Brown. Smooth ; leaves all short-petioled ; leaflets cuneate-obovate ; stipules leafy, lanceolate, twice as long as the petioles ; ra- cemes large, erect, many-flowered ; flowers (indigo blue) very large ; bracts deciduous; legume oblong. (B. casrulea, Nutt.) — Banks of rivers, Georgia (Pursh), and westward. June and July. — Stem 2° -3° high. Flowers 1' or more long. Legume 2' long. Plant unchanged in drying. LEGUMINOS^:. (PULSE FAMILY.) 113 39. THERMOPSIS, R. Brown. Stamens mostly persistent. Legume linear or oblong-linear, nearly sessile, flattened, many-seeded. Stipules leafy, persistent. Otherwise chiefly as in Baptisia. Flowers yellow. 1. T. Caroliniana, M. A. Curtis. Stem stout, simple, smooth ; leaves long-petioled ; leaflets membranaceous, obovate-oblong, silky beneath ; stipules very large, ovate or oblong, clasping; racemes elongated, villous, erect, rigid, many- flowered ; flowers on short pedicels ; bracts ovate, deciduous ; legumes oblong- linear, erect, straight, villous and hoary, 10-12-seeded. — Mountains of North Car- olina. May - July. — Stem 3° - 5° high. Raceme 6' -12' long. Legume 2' long. 2. T. fraxinifolia, M. A. Curtis. Stem branching, slender, smoothish ; leaves long-petioled ; leaflets oblong, narrowed at the base, often acute, smooth above, glaucous and slightly pubescent beneath ; stipules lanceolate, much shorter than the petioles , racemes erect, glabrous ; flowers on slender spreading pedi- cels ; bracts small, lanceolate, persistent ; legume linear, falcate, pubescent, spreading, short-stipitate, 10-seeded. — Mountains of North Carolina. — Stem 2° high. Legume 3' long. 3. T. mollis, M.A.Curtis. Pubescent; stem diffusely branched ; leaflets obovate-oblong ; stipules leafy, oblong-ovate, as long as the petioles ; racemes declined ; pedicels shorter than the calyx and lanceolate bracts ; legume linear, flat, short-stipitate. (Baptisia mollis, Michx.) — Rocky woods in the middle districts of North Carolina. April and May. — Stem 2° high. Legume 2' - 3' long, many-seeded. 40. CLADRASTIS, Baf. YELLOW-WOOD. Calyx 5-toothed ; the nearly equal teeth short and obtuse. Vexillum large, roundish, reflexed, scarcely longer than the oblong wings and separate keel- petals. Stamens 10, distinct ; filaments slender, incurved above. Legume short- stipitate, linear, flat, thin, marginless, 4 - 6-seeded, at length 2-valved. — A small tree, with yellow wood, pinnate leaves, and large white flowers in terminal droop- ing panicled racemes. 1. C. tinctoria, Raf. (Yirgilia lutea, Michx.) — Hill-sides, in rich soil, Tennessee and Kentucky, May. — Leaflets 7-11, oval or ovate, acute, smooth, parallel-veined, 3'- 4 'long; the common petiole tumid at the base. Stipules none. Racemes 1° long. Flowers 1' long. 41. SOPHORA, L. Calyx campanulate, obliquely truncated or 5-toothed. Stamens 10, free or cohering at the base. Style smooth. Legume moniliform, wingless, many- seeded, indehiscent. Seeds subglobose. — Trees or shrubs, with unequally pin- nate leaves. Flowers in axillary and terminal racemes. 1. S. tomentosa, L. Hoary-tomentose ; leaflets 11-17, oblong, coria- ceous, becoming smooth above ; raceme elongated ; calyx minutely 5-toothed. — South Florida, near the coast. — Shrub 4° -6° high. Flowers showy, yel- low. Legume stipitate, 5' long. 10* 114 LEGUMINOS^. (PULSE FAMILY.) SUBORDER II. CJESAL.PINIE.aE. '"* BRASILETTO FAMILY. 42. CIE-CIS, Ifcj RED-BUD. Calyx campanulate, 5-toothcd. Petals all distinct, the vexillum shorter than the wings. Stamens 10, distinct. Legume oblong, compressed, many-seeded ; the upper suture winged. — Trees, with broadly-cordate simple stipulate leaves, and reddish-purple clustered flowers appearing before the leaves. 1. C. Canadensis, L. — Rich soil, Florida to Mississipi, and northward. February and March. — Tree 15° -20° high. Flowers very numerous, from lateral buds. 43. CASSIA, L. SENNA. Calyx of 5 nearly distinct sepals. Petals 5, unequal. Stamens 5 -10. An- thers mostly of different forms, opening by two terminal pores. Legume many- seeded. Seeds often separated by cross partitions. — Herbs or shrubs. Leaves abruptly pinnate. Flowers yellow. * Stamens 10, unequal : part of the anthers abortive : sepals obtuse : stipules deciduous. 1. C. OCCidentaliS, L. Annual, smoothish ; stem stout, branching ; leaf- lets about 10, ovate or ovate-lanceolate, acute ; petiole with a globular gland at the base ; racemes 2 - 4-flowered, the upper ones crowded. — Waste places, com- mon. — Stem l°-5° high. Legume linear, erect, compressed, slightly curved, 3' -4' long. 2. C. obtusifolia, L. Annual, rougblsh ; stem slender, leaflets 6, cune- ate-obovate, with a tooth-like gland between the lowest pair ; flowers by pairs ; legume narrow-linear, 4-angled, recurved. — Waste places, Florida to North Carolina, and westward. Stem 1° - 4° high. Legume 6' - 10' long. 3. C. Marilandica, L. Perennial, smoothish; leaflets 12-18, oblong, acute ; petiole with a club-shaped gland near the base ; racemes several- flowered, the upper ones crowded, forming a compact panicle ; legume linear, slightly curved. — Rich soil, Florida to Mississippi, and northward. August. — Stem 3° - 4° high. Legume 3' - 4' long. 4. C. angUStisiliqua, Lam. ? Smooth or nearly so ; stem branched ; leaflets 6-10, oblong, mucronate, very ^oblique at the base, hairy at the base beneath, with a globular gland on the petiole or between the lowest pair of leaf- lets ; flowers in a terminal panicle, on slender pedicels ; sepals oblong-obovate ; petals yellow, veiny ; perfect stamens oblong, the larger ones curved ; legume (3'-^' long) broadly linear, flat, straight or somewhat falcate, many-seeded. — South Florida. Feb. — Leaflets 9" - 12" long. Legumes 4'' wide. 5. C. biflora, L. Shrubby; leaflets 4- 10, oblong, narrowed at the base, mucronate, with an obovoid gland between the lowest pair ; racemes 2 - 4-flow- ered, often by pairs, slender, shorter than the leaves ; fertile anthers 5 ; legume linear, flat, straight or somewhat falcate, smooth, many-seeded. — Key West. — Leaflets 1' long. Legume 3' long, 2" wide. LEGUMINOS^E. (PULSE FAMILY.) 115 * * Stamens 5 -10: anthers all perfect : sepals acute: stipules persistent. 6. C. Chamaecrista, L. Annual; stem smooth or rusty-hairy; leaflets small, numerous, linear-oblong, mucronate ; stipules acuminate, nerved ; flowers borne above the axils, large, clustered, on long pedicels ; anthers 10 ; style slen- der ; legume linear, nearly straight. — Dry barren soil, Florida to Mississippi, and northward. July and August. — Stem 1°- 1^° high. Part of the petals often purple at the base. 7. C. nictitans, L. Annual; pubescent; leaflets numerous, oblong-linear; stipules and bracts subulate ; flowers small, 2 - 3 in a cluster above the axils, on short pedicels ; petals unequal ; stamens 5, nearly equal. "Var. aspera. (C. aspera, Ell.) Hirsute; stamens 7-9, very unequal; ovary very hairy ; flowers larger. — Dry old fields, Florida to North Carolina, and westward. August. — Stem 1° high, often prostrate. Leaflets about 40, sensi- tive, like those of the preceding species. 44. GLEDITSCHIA, L. HONEY-LOCUST. Flowers polygamous. Sepals 3-5, united at the base, spreading. Petals as many, or less by the union of the 2 lower ones. Stamens 3 - 5, distinct, inserted with the petals on the base of the calyx. Legume stipitate, flat, 1 - many-seed- ed. Seeds compressed. — Thorny trees. Leaves abruptly 1 - 2-pinnate, with oblong serrate leaflets. Flowers small, greenish, in short spikes. 1. G. triacanthos, L. Leaflets lanceolate-oblong; thorns mostly com- pound ; legume very long, many-seeded, pulpy within. — Rich woods, Florida to Mississippi, and northward. June and July. — A large tree. Legume 12'- 18' long, 1' wide, twisted. 2. G. monosperma, Walt. Leaflets ovate or oblong ; thorns mostly simple ; legume short, obliquely oval, 1-seeded, not pulpy. — Deep river swamps, Florida to Tennessee, and westward. July. — A small tree. Legume 1' long. SUBORDER HI. WIIIflOSEJE. MIMOSA FAMILY. 45. MIMOSA, L. SENSITIVE-PLANT. Flowers polygamous. Calyx minute, 4-5-toothed. Petals united into a 4-5-cleft tubular-campanulate corolla. Stamens 4-15, distinct, much exsert- ed. Legume compressed, mostly jointed, 1 - many-seeded ; the broad valves separating at maturity from the persistent margins. — Herbs, shrubs, or trees. Leaves bipinnate, sensitive. Flowers white or rose-color, capitate or spiked, on axillary peduncles. 1. M. Strigillosa, Torr. & Gray. Herbaceous and rough with scattered appressed rigid hairs ; stem prostrate ; leaves long-petioled ; pinnae 5-6 pairs ; leaflets 10-14 pairs, oblong-linear; peduncles longer than the leaves ; heads of flowers elliptical ; legume oval or oblong, 1 - 3-jointed, hispid. — Banks of rivers, East Florida, and westward. July and August. — Flowers rose-color. 116 LEGUMINOS^. (PULSE FAMILY.) M. PUDICA, L., the common SENSITIVE-PLANT, is partially naturalized in sonic localities. 46. SCHRANKIA, Willd. Flowers polygamous. Calyx minute. Corolla funnel-shaped, 5-cleft. Sta- mens 8-10, distinct, exserted. Legume not jointed, prickly, 1-celled, many- seeded ; the narrow valves separating at maturity from the broad margins. — Perennial prostrate prickly herbs, with bipinnate sensitive leaves, and purple flowers in globose axillary peduncled heads. 1. S. uncinata, Willd. Stem, petioles, peduncles, and legumes thickly beset with short and thick recurved prickles ; pinnae 5-6 pairs ; leaflets 26 - 30, elliptical, reticulated with elevated veins beneath; peduncles mostly solitary, usually shorter than the leaves ; legume oblong-linear, with a short acuminate point, about as long as the peduncle ; seeds elliptical. — Dry sandy soil, Florida, and westward. June -August. — Stem 2° -4° long. Legume 2' long. 2. S. angustata, Torr. & Gray. Stem, &c. armed with scattered weak recurved prickles ; pinnae 4-6 pairs ; leaflets about 30, linear-elliptical, veinless, or nearly so, on both sides ; peduncles single or by pairs, much shorter than the leaves ; legume narrow-linear, 3-4 times as long as the peduncle, ending in a long subulate smoothish point. Var. ? brachycarpa. Stem, £c. as in No. 1 ; leaflets oblong-linear ; pedun- cles single or 2 - 4 in a cluster, the upper ones longer than the leaves ; legumes (2' -3' long) broadly linear, abruptly slender-pointed, densely armed with strong often branching prickles, about as long as the peduncle. — Dry pine barrens, Florida to North Carolina, and westward. June - August. — Stem 2° - 5° long. Legumes 4' -5' long. 47. PITHECOLOBIUM, Martins. Flowers perfect, rarely polygamous. Calyx tubular-campanulate, 4 - 5-toothed. Corolla tubular-funnel-shaped, 4 - 5-cleft. Stamens 10 or more, long exserted, monadelphous near the base. Style filiform. Legume broadly linear, com- pressed, contorted or falcate, transversely partitioned, mealy or pulpy within. Seeds lenticular. — Trees or shrubs, often armed with stipular spines. Leaves pinnate or bipinnate. Flowers chiefly capitate, axillary and terminal. 1. P. Unguis-Cati, Benth. Unarmed or spiny; leaves bipinnate; leaf- lets 4, thin, broadly and obliquely obovate, the partial petioles much shorter than the common one ; heads globose, in a loose raceme ; calyx-teeth short, ciliate ; corolla yellowish, smooth ; stamens crisped, twice as long as the corolla ; ovary smooth. (Inga Unguis-Cati, Willd.) — South Florida. — Leaflets 1 ' - 1|' long, light green. (Legume spirally twisted, 5 - 6-seeded, white, and fleshy within. McFadyen.) 2. P. Guadalupense. Unarmed ; leaves bipinnate ; leaflets 4, coria- ceous, obliquely oblong or obovate, the common and partial petioles nearly equal ; peduncles solitary, axillary, longer than the leaves, or the upper ones racemose ; calyx and corolla pubescent ; stamens 30 or more, 3-4 times as long ROSACES. (ROSE FAMILY.) 117 as the corolla; ovary pubescent; legume smooth, falcate or hooked. (Inga Guadalupensis, Desv.) — South Florida. — Leaflets 1' long, deep green. Legume 2' -4' long. Flowers yellowish. I 48. DESMANTHUS, Willd. Flowers polygamous. Calyx 5-toothed. Corolla of 5 oblong-spatulate pet* als, or tubular and 5-cleft. Stamens 5 - 10. Filaments of the lower flowers filiform, sterile. Legume linear, continuous, 2-valved. — Herbs or shrubs, with abruptly bipinnate leaves, and heads or spikes of white flowers borne on axillary peduncles. Leaves sensitive. 1. D. depressus, Humb. & Bonpl. Stems slender, prostrate, sprinkled with hairs, shrubby at the base ; pinna? 2 pairs ; leaflets oblong-linear, very ob- tuse, oblique and almost truncate at the base, hairy on the margins ; peduncles 2-4-flowered, the two upper flowers (sometimes all) perfect; stamens 10; leg- ume linear, many-seeded ; seeds angular, compressed. — South Florida. — Stems 1° - 2° long. Legume 1 ' - 1 £' long. 2. D. diflfusus, Willd. Stem somewhat shrubby, prostrate ; pinna? 4-5 paurs ; spikes few-flowered, capitate ; flowers pentandrous ; legume narrowly linear. — Key West. — Legume 2' long. 3. IX virgatus, Willd. Stem erect, rather rigid, smoothish, angled ; pinna? 1 - 7-pairs ; leaflets numerous, oblong-linear ; a rather large ovate gland below the lowest pinnae; heads few-flowered ; stamens 10; legume straight, lin- ear., 10 - 30-seeded. (D. strictus, Bertol.) — South Florida. — Stem 1° - 2° high. 49. NEPTUNIA, Lour. Sterile filaments flat, membranaceous or petal-like. Legume oblong, few- seeded ; otherwise like Desmanthus. 1. N. lutea, Benth. Stems ascending, rough with short rigid hairs ; pinna? 4-5 pairs ; leaflets numerous, linear-oblong, mucronate, fringed on the margins, veiny beneath ; stipules ovate, acuminate ; peduncles longer than the leaves, rough, minutely bracted ; heads oval or oblong, many-flowered, nodding ; petals distinct; sterile filaments 8-10, yellow, spatulate-linear ; fertile ones 10, white ; legume 5 - 8-seeded. — Damp soil near the coast, Key West to Alabama, and westward. June. 1J. — Stems 2' -3' long. ORDER 48. ROSACE^E. (ROSE FAMILY.) Herbs, shrubs, or trees, with alternate stipulate leaves, and regular flowers. — Calyx of 3 - 8 (mostly 5) more or less united sepals, and often with as many bracts. Petals as many (rarely none), inserted with the few or numerous distinct stamens on the edge of the disk which lines the tube of the calyx, mostly imbricated in the bud. Ovaries 1 - several, free, or more or less united with the calyx and with each other, 1 - few- 118 ROSACEJE. (ROSE FAMILY.) ovuled. Seeds anatropous, and, with few exceptions, without albumen. Embryo straight, with large and thick cotyledons. Fruit various. Synopsis. SUBORDER I. CHRYSOBALANEJE. Calyx bractless, free from the solitary ovary. Style single, arising from the base of the ovary. Ovules erect. Fruit a drupe. — Trees or shrubs. Leaves simple. 1. CHRYSOBALANUS. Calyx-limb persistent. Stone grooved. Low shrubs. SUBORDER II. AMYGDALE^. Calyx bractless, free from the sol- itary ovary. Style single, terminal. Ovules suspended. Fruit a drupe. Leaves simple. 2. PRUNUS. Calyx-limb deciduous. Stone even, or grooved on the margins. SUBORDER LU. ROSACEJE. Calyx 3 - 5-cleft, the lobes often alte-- nating with as many bracts, free from the 1 - several ovaries. Style lateral or terminal. Fruit a 1 - 10-seeded follicle, or a 1-seeded ache- nium. — Herbs or shrubs. Leaves mostly lobed or compound. * Fruit a 1 - 10-seeded follicle. 3. SPIR2EA. Petals obovate or roundish, imbricated in the bud. 5. GILLENIA. Petals linear-lanceolate, convolute in the bud. * * Fruit a 1-seeded achenium. •»- Fruiting calyx dry, the lobes mostly valvate in the bud. Achenia few, or numerous and collected into a head. •H- Calyx-tube contracted at the throat (except No. 4). Achenia 1-4. 4. NEVIUSIA. Petals none. Stamens indefinite. Calyx-lobes serrate. 6. AGRIMONIA. Petals 5. Stamens 5 -15. Calyx bristly. 7. SANGUISORBA. Petals none. Stamens 4. Style terminal. 8. ALCHEMILLA. Petals none. Stamens 1-4. Style lateral. •H- -H. Calyx open, bracted. Stamens and dry achenia numerous, the latter rarely 2-4. = Seeds erect. 9. GEUM. Style persistent. Achenia numerous. 10. WALDSTEINIA. Style deciduous. Achenia 2-6. = = Seeds suspended or ascending. 11. POTENTILLA. Receptacle flat or convex, dry. 12. FRAGARIA. Receptacle conical, enlarged and fleshy in fruit. ++ -H. *+ Calyx open, bractless. Stamens and juicy achenia numerous. 13. RUBUS. Achenia crowded on the conical receptacle. +- H- Calyx-tube fleshy, urn-shaped ; the lobes imbricated in the bud. Achenia numerous, inserted on the receptacle which lines the inside of the calyx-tube. 14. ROSA. Achenia dry and hairy. Prickly shrubs. ^ ^ SUBORDER IV. POME^E. Calyx including and cohering with the 1-5 ovaries, very thick and fleshy in fruit. 15. CRATJ2GUS. Fruit of 1 - 5 bony 1-seeded nutlets. 16. PYRUS. Fruit of 2 - 5 cartilaginous or membranaceous 2-seeded cells. 17. AMELANCHIER. Fruit of 3 - 5 two -seeded cells ; seeds separated by a false partition. ROSACES. (ROSE FAMILY.) 119 1. CHRYSOBALANTTS, L. Calyx bell-shaped, 5-cleft, persistent. Petals 5. Stamens about 20 ; the in- ner ones often shorter and sterile. Ovary with 2 collateral erect ovules ; the style arising from its base. Drupe 1 -seeded ; the stone grooved. — Low unarmed shrubs. Leaves nearly sessile, entire, with minute stipules. Flowers small, in axillary or terminal paniculate cymes. 1. C. Oblongifolius, Michx. Leaves somewhat coriaceous, oblong, nar- rowed downward, mucronate, smooth on both sides, or hoary-pubescent beneath, deciduous ; cymes terminal, racemose, many-flowered ; calyx pubescent ; sta- mens and ovary smooth ; drupe ovoid. — Dry sandy pine barrens, Florida, Ala- bama and Georgia. May. — Stems creeping, the flowering branches 6' - 12' high. Leaves 3' - 4' long. Flowers greenish-white, mostly abortive. 2. C. Icaco, L. ( COCOA PLUM.) Leaves short-petioled, round-obovate, mostly emarginate, smooth, coriaceous ; cymes axillary, few-flowered, shorter than the leaves ; calyx pubescent and hoary ; stamens and ovary hairy ; drupe large roundish. — South Florida. — Shrub 4° - 6° high, the stem and branches rough- ened with small white tubercles. Leaves 2' long, l£' wide. Drupe yellow, pur- ple, or black. 2. PRUNUS, L. PLUM. CHEERY. Calyx 5-cleft, deciduous. Petals -5, spreading. Stamens 15-30. Ovary with 2 collateral suspended ovules. Style terminal. Drupe fleshy; the stone even. — Trees or shrubs. Leaves simple. Flowers white. § 1. PRUNUS. (PLUM.) — Drupe glaucous: stone more or less compressed : leaves convolute in the bud: Jlowers in lateral clusters, appearing before the leaves: branches often spiny. 1. P. Americana, Marsh. Leaves thick, ovate or somewhat obovate, acu- minate, rounded or slightly cordate at the base, pubescent beneath, sharply ser- rate, on glandular petioles ; drupe large, globose. (P. hiemalis, Ell.) — Woods, Florida to Mississippi, and northward. March and April. — A small tree. Leaves 2' -3' long, smooth when old. Flowers very numerous. Plum reddish, £'-!' in diameter, pleasantly acid, ripening in September. 2. P. umbellata, Ell. Leaves thin, ovate-lanceolate or oblong, acute at both ends, or the upper ones rounded at the base, finely and sharply serrate, smooth or soft-downy beneath ; calyx-teeth emarginate, pubescent ; drupe glo- bose ; stone slightly compressed. — Dry light soil, Florida and Alabama to South Carolina. February and March. — A shrub or small tree. Branches purple, shining. Leaves I'-l^' long. Plum rarely £' in diameter, dark-purplish or black, sour and bitter, ripening in August. 3. P. Chicasa, Michx. Leaves thin, lanceolate or oblong-lanceolate, acute, smooth, minutely and sharply serrate, with the teeth glandular and in- curved ; flowers short-peduncled ; calyx smooth ; drupe yellowish-red, globose. — Old fields, forming thickets. March. — A shrub or small tree. Leaves 120 ROSACEJS. (ROSE FAMILY.) l£' - 2' long. Plum about ^' in diameter, thin-skinned and of an agreeable flavor. ' § 2. CERASUS. (CHERRY^) — Drupe not glaucous: stone globular or slightly com- pressed: leaves folded in the bud, deciduous. — Spineless shrubs or trees. * Flowers clustered. 4. P. Pennsylvanica, L. Leaves thin, ovate-lanceolate, acuminate, finely and sharply serrate, green and smooth on both sides ; flowers several in a cluster, on long peduncles ; drupe globose, light red. — Rocky woods, North Carolina, and northward. May. — A small tree. Fruit small and sour. * =* Flowers in racemes terminating leafy branches. 5. P. serotina, Ehrhart. Leaves smooth, varying from oval to ovate- lanceolate, mostly acute or acuminate, serrate, with the teeth callous and ap- pressed ; racemes long, spreading ; drupe globose, purplish-black. — Woods, Florida to Mississippi, and northward. April and May. — A tree 20° - 60° high. 6. P. Virginiana, L. Smooth throughout, or the lower surface of the leaves, branches, and racemes more or less pubescent ; leaves thin, oval, oblong or obovate, finely and sharply serrate, abruptly acute or acuminate ; racemes rather short and erect ; drupe red. (P. hirsuta, Ell. ?) — Light sandy soil, Geor- gia and northward. April. — Shrub 3° - 9° high. Leaves 1' - 3' long. Drupe astringent. § 3. LAUROCERASUS. ( CHERRY-LAUREL ) — Drupe not glaucous : stone globular : flowers in racemes from the axils of evergreen leaves. 7. P. Caroliniana, Ait. (MocK ORANGE.) Leaves coriaceous, smooth and glossy, ovate-lanceolate, acute, mostly entire ; racemes shorter than the leaves, white ; drupe ovoid, soon dry, black. — Banks of rivers, Florida to North Carolina, and westward. February and March. — A small tree. 3. SPIRJEA, L. MEADOW-SWEET. Calyx 5-cleft, persistent. Petals 5, roundish, imbricated in the bud. Stamens 10-50. Follicles 3-12, 1 - 10-seeded. Styles terminal. — Shrubs or perennial herbs, with simple or compound leaves. Flowers white or rose-color, sometimes dioecious. * Slirubs : flowers perfect. H- Flowers corymbose. 1. S. opulifolia, L. Leaves broadly ovate or cordate, 3-lobed, doubly crenate-serrate, smooth; corymbs umbellate, terminating the short branches, mostly pubescent ; follicle smooth, inflated, 2-4-seeded. — Var: FERRUGINEA, Nutt. Leaves smaller (!' long), slightly lobed, covered, like the branches, corymbs, and follicles, with a dense brownish pubescence. — Banks of streams, Florida and Alabama (the variety) to the mountains of Georgia, and northward. April and May. — Shrub 3° - 5° high, the old bark separating in turn layers. Flowers white. H— H— Flowers panicled. 2. S. tomentosa, L. Leaves simple, ovate or oblong, serrate, the lower surface, like the branches and close panicle, covered with a dense, rust-colored ROSACES. (ROSE FAMILY.) 121 pubescence ; follicles 5, not inflated, tomentose, several-seeded. — Low grounds in the upper districts of Georgia, and northward. June and July. — Stem 2° - 3° high. Flowers small, pale purple. 3. S. salicifolia, L. Smooth; panicle dense-flowered; leaves varying from lanceolate to oblong-obovate, sharply and doubly serrate ; follicles not in- flated, smooth, several-seeded. — With the preceding. June and July. — Stem 2° -5° high. Flowers white. * * Perennial herbs: leaves lobed or compound. 4. S. lobata, Murr. Flowers perfect, in long-peduncled paniculate cymes ; leaves coarse, pinnately lobed, the terminal lobe very large, reniform, 7 - 9-parted, with the divisions incisely toothed and serrate; stipules reniform, persistent; follicles 6-8, 1 - 2-seeded. — Swamps along the mountains of Georgia and North Carolina, northward. June and July. — Stem smooth, 5° - 8° high. Up- per leaves 3-lobed and sessile ; the lowest ones on Jong petioles. Flowers rose- color. Petals and sepals often in fours. 5. S. AruncilS, L. Flowers dioecious, in elongated filiform panicled racemes ; leaves thrice-pinnate ; leaflets thin, lanceolate-oblong, sharply and doubly serrate ; stipules minute or wanting ; follicles 3-5, several-seeded, re- flexed. — Woods on the mountains of Georgia, and northward. June. — Stem tall and slender. Flowers minute, white. 4. NEVIUSIA, Gray. Calyx bractless, spreading, 5-parted, with the lobes leaf-like, incisely serrate and persistent. Corolla none. Stamens indefinite, inserted in several rows on the thin disk which lines the bottom of the calyx ; filaments filiform. Ovaries 2-4, sessile : style nearly terminal, filiform. Ovule single, pendulous, anatro- pous. Achenia drupaceous. Cotyledons oval, flat. Embryo included in thin fleshy albumen. Radicle superior, inflexed-accumbent. — A shrub, with alter- nate leaves, free bristle-awl-shaped stipules, and single or clustered terminal flowers on slender peduncles. • 1. N. Alabamensis, Gray. — Shady cliffs near Tuscaloosa, Alabama. Rev. R. D. Nevius. — Shrub 2° - 5° high, with spreading branches. Leaves short-petioled, membranaceous, ovate or oblong, doubly serrate, l'-2^' long. Flowers very numerous and showy. 5. GILLENIA, Mcench. INDIAN PHYSIC. Calyx tubular-campanulate, 5-toothed. Petals 5, linear-lanceolate, unequal, inserted on the throat of the calyx, convolute in the bud. Stamens 10 - 20. Fol- licles 5, included in the calyx, 2-4-seeded. — Perennial herbs. Leaves thin, trifoliolate ; the leaflets sharply and doubly serrate. Flowers white or rose- color, in loose few-flowered corymbs. 1. G. trifoliata, Moanch. Stipules small, subulate, entire; leaflets ob- long, acuminate, rather coarsely serrate; lower peduncles elongated, flowers 11 122 ROSACE^E. (ROSE FAMILY.) white. — Rich woods in the northern parts of Alabama, and northward. June. — Stem 2° -3° high. 2. G. stipulacea, Nutt. Stipules leafy, ovate, serrate; leaflets lanceo- late, coarsely serrate, or the lowest incisely lobed ; flowers rose-color. — Moun- tains of Alabama, and northward. June. — Stem 2° - 3° high. 6. AGRIMONIA, Tourn. AGRIMONY. Calyx 5-cleft, the tube top-shaped, contracted at the throat, and armed with hooked bristles. Petals 5. Stamens 5-15, inserted on the throat cf the calyx. Achenia 2, included in the grooved and indurated calyx-tube. — Perennial herbs, with unequally pinnate leaves, leafy toothed stipules, and small yellow flowers in long spiked racemes. Fruit nodding. 1 . A. Eupatoria, L. Stem hairy ; leaflets 3-7, with smaller ones below or intermixed, oblong-obovate, hairy, sometimes white-downy beneath, coarsely serrate ; petals twice the length of the calyx. — Dry open woods, Florida to Mis- sissippi, and northward. August. — Stem 2° - 3° high. 2. A. parviflora, Ait. Stem and petioles hirsute; leaflets 9-15, with smaller ones between, lanceolate, coarsely serrate, roughish above, pubescent beneath. — Low ground, chiefly in the upper districts, Mississippi to North Car- olina, and northward. August. — Flowers and fruit smaller than in No. 1. 3. A. incisa, Torr. & Gray. Stem, petioles, and lower surface of the leaves clothed with soft 'down and long hairs intermixed ; leaflets 7-9, small (!' long), oblong or obovate, coarsely serrate, with smaller ones between; sta- mens 5. — Dry open woods, Florida, Alabama, and Georgia. August. — Stem 2° high. Flowers small. 7. SANGUISORBA, L. Calyx 4-parted, the tube 4-angled. Petals none. Stamens 4, the filaments usually thickened upward. Style terminal, slender. Stigma pencil-form. Achenia 1-2, included in the 4-winged indurated calyx-tube. — Herbs, with unequally pinnate leaves. Flowers in close heads or spikes. 1. S. Cauadensis, L. Smooth; leaflets numerous, stalked, cordate- ovate or oblong, serrate ; spikes long-peduncled, cylindrical, elongated in fruit ; stamens flattened. — Wet meadows, along the Alleghany Mountains, Georgia, and northward. September. 1J. — Stem 2° - 4° high. Lowest leaves on long petioles. Flowers white. 8. ALCHEMILLA, Tourn. Calyx 4 - 5-parted, and with as many alternate bracts ; the tube obconical, contracted at the throat. Petals none. Stamens 1-4. Style lateral. Stigma capitate. Achenia 1-4, included in the persistent calyx -tube. — Small herbs, with palmately divided leaves, and minute greenish flowers, in corymbs or clus- ters. KOSACE^E. (ROSE FAMILY.) 123 1. A. arvensiS, L. Annual, hairy; stem (l'-8'high) leafy; leaves 3- partcd, the divisions wedge-shaped, 3 - 5-lobed ; flowers in axillary sessile clus- ters ; fertile stamens 1-2. — Waste places, North Carolina and Virginia. In- troduced. — Stem branching from the base. Leaves 4" - 6" long. 9. GEUM, Lv AVENS. Calyx campanulate, deeply 5-cleft, and usually with as many bracts at the sinuses. Petals 5. Stamens and achenia numerous, the latter crowded on the conical or cylindrical dry receptacle. Styles terminal, long, persistent, jointed and hairy, or straight and smoothish. Seeds erect. — Perennial herbs, with pin- nately divided leaves. Flowers yellow, white, or purple. 1. G. album, Gmelin. Smoothish or downy ; stem slender, with spreading branches ; radical leaves pinnate, or the earliest ones nearly simple and rounded ; stem-leaves 3-parted, lobed or toothed ; petals white, as long as the calyx ; style jointed and bent near the middle, the smooth lower portion persistent and hooked ; receptacle and ovaries bristly-hairy. — Rich woods, Georgia and northward. April and May. — Stem 2° high. 2. G. geniculatum, Michx. Hairy ; leaves pinnate, 3-parted or 3-lobed, the upper ones nearly sessile ; leaflets or lobes thin, ovate and obovate, toothed and serrate ; style jointed and bent in the middle, the upper portion plumose and nearly persistent the lower pubescent, or smooth above ; heads of the hairy achenia sessile. — High mountains of North Carolina. July. — Stem 2° - 3° high. Flowers white, veiny. 3. G. radiatum, Michx. Hirsute; stem short (6' -12'), often branching; lowest leaves pinnate, the terminal leaflet large, reniform, obscurely lobed, doubly toothed, the lateral ones few and small ; stem-leaves scattered, small, sharply toothed, sessile ; flowers large ; petals obcordate, yellow ; style straight and wholly persistent, hairy at the base ; heads of achenia sessile. — Highest mountains of North Carolina. July. — Flowers 1' wide. 10. WALDSTEINIA, Willd. Calyx obconical, 5-cleft, with as many alternate bracts. Petals 5. Stamens numerous, inserted into the throat of the calyx. Achenia 2-6, dry or some- what fleshy. Style terminal, filiform, separating from the achenium by a joint. Seeds erect. — Low perennial herbs, with chiefly radical and roundish lobed leaves, and yellow flowers on scape-like stems. 1. W. fragarioides, Tratt. Smooth or hairy; leaves long-petioled, tri- foliolate or 3-parted, with broadly cuneate and crenately toothed leaflets ; scape as long as the leaves, bracted, many-flowered ; achenia 4-6, minutely hairy. — Mountain-woods, Georgia and northward. May and June. — Stem and leaves 4' - 6' high. Petals larger than the calyx. 2. W. lobata, Torr. & Gray. Hairy ; leaves cordate, crenately 3 - 5-lobed ; scape filiform, bracted, 4 - 8-flowered ; achenia mostly 2, hoary ; petals rather 124 % ROSACE^E. (ROSE FAMILY.) shorter than the calyx. (Dalibarda lobata, Baldw.) — Banks of the Flint and Chattahoochee rivers, in the middle districts of Georgia, not common. May and June. — Scape and leaves 4' - 8' high. 11. POTENTILLA, L. CINQUEFOIL. Calyx flat, 5-cleft, with as many bracts. Petals 5, obcordate or roundish. Stamens numerous. Style lateral or terminal, deciduous. Achenia collected in a head on the dry and pubescent receptacle. — Herbs or shrubby plants, with variously divided leaves. Flowers solitary or cymose. * Style terminal, or nearly so. 1. P. Norvegica, L. Annual, hair^; stem erect, branched; leaves pal- mately 3-foliolate, the leaflets obovate-oblong or lanceolate, coarsely serrate ; flowers pale yellow, in leafy cymes ; petals shorter than the calyx. — Waste places. Introduced, and sparingly naturalized. — Stem 1° - 2° high. 2. P. Canadensis, L. Perennial, hairy ; stem prostrate or ascending, simple ; leaves palmately 5-foliolate ; leaflets obovate-oblong, coarsely serrate ; flowers axillary, solitary, on long filiform peduncles ; petals yellow, obcordate, as long as the calyx. (P. simplex, Michx.) — Meadows in the upper districts, Mississippi to North Carolina, and northward. July and August. — Stem l°-3° long. * * Style lateral. f 3. P. tridentata, Ait. Stem somewhat shrubby at the base, erect or as- cending, pubescent ; leaves rigid, trifoliolate, cuneate -oblong, 3-toothed at the apex ; flowers white, in a terminal cyme. — High mountains of North Carolina. July. — Stem 5' - 10' high. Achenia and receptacle very hairy. 12. FRAGARIA, Tourn. STRAWBERRY. Flowers like Potentilla, but the dry achenia borne on the enlarged, at length pulpy and scarlet receptacle. Style lateral. — Perennial herbs with creeping runners. Leaves radical, trifoliolate. Flowers white, in terminal cymes. 1. F. Virginiana, Ehrhart. Hairy ; leaflets oblong, coarsely serrate ; scape few-flowered ; fruit roundish, the achenia imbedded in the deeply pitted receptacle. — Rich woods, Florida to Mississippi, and northward. March and April. — Scapes 4' -6' high. 13. RTJBTJS, L. BRIER. BRAMBLE. Calyx concave or flattish, 5-parted, without bracts. Petals 5, deciduous. Stamens numerous. Achenia juicy, crowded on the conical or cylindrical re- ceptacle. Style nearly terminal, deciduous — Perennial or shrubby and mostly prickly plants, with lobed or compound petioled leaves, and white or reddish flowers. * Heads of achenia hemispherical, deciduous : receptacle dry. 1. B. odoratUS, L. Shrubby, not prickly; the branches, petioles, and corymbs hispid with glandular hairs ; leaves large, broadly ovate, 3-lobed, or ROSACES. (ROSE FAMILY.)* 125 the lowest ones 5-lobed, the lobes acute or acuminate, toothed and serrate ; calyx- lobes caudate ; flowers large, rose-color ; fruit reddish. — Rocky woods on the mountains of Georgia, and northward. June - August. — Stem 3° - 4° high. Flowers 2' in diameter. 2. B. occidentalis, L. Glaucous ; stem prickly, but otherwise very smooth, bending ; leaves 3 - 5-foliolate ; leaflets thin, ovate, acuminate, coarsely serrate or sparingly toothed, white-downy beneath ; petals white, shorter than the reflexed short-caudate hoary calyx-lobes ; fruit black. — Borders of woods along the mountains, Georgia and northward. May. — Stem biennial, 5° - 8° long. * * Heads of achenia oval or oblong, persistent : receptacle juicy. 3. B. villosus, Ait. Tall, shrubby; stem erect or bending, armed, like petioles and peduncles, with stout recurved prickles, the branches and 3 - 7-folio- late leaves soft-hairy or nearly smooth ; leaflets ovate or oblong, doubly ser- rate ; racemes leafy below, bracted above ; sepals acuminate, much shorter than the obovate white petals ; fruit large, oblong, black. — Swampy thickets, common. April. — Stem 4° - 10° high. 4. B. cuneifolius, Pursh. Shrubby, armed with stout prickles; stem erect ; branches and leaves tomentose ; leaves trifoliolate, with the leaflets cune- ate-obovate, unequally serrate towards the summit, tomentose and white beneath ; racemes few-flowered ; petals white ; fruit ovoid, black. — Old fields, Florida to North Carolina, and westward. April. — Stem 2° - 4a high. Leaves and fruit smaller than in the preceding. 5. B. trivialis, Michx. Shrubby, and armed with stout straight or re- curved prickles and bristly hairs ; stem prostrate, slender ; leaves 3 - 5-foliolate, partly persistent ; leaflets smooth, oblong-ovate or obovate, acute, sharply serrate ; racemes few-flowered, leafy below, mostly longer than the leaves ; flowers large, white ; fruit black. — Dry sandy soil, Florida to North Carolina, and westward. April. 6. B. hispidus, L. Somewhat shrubby, and armed with weak bristle-like prickles ; stem slender, prostrate ; leaves trifoliolate, persistent ; leaflets obovate, obtuse, coarsely serrate, smooth ; racemes many-flowered, slender, longer than the leaves ; flowers small, white ; fruit of few large and black achenia. (R. obo- valis, Michx.) — Cold shady swamps among the mountains, Georgia and north- ward. May and June. — Fruit sour. 14. BOSA, Tourn. ROSE. Calyx 5-cleft, the urn-shaped tube becoming fleshy in fruit. Petals 5. Sta- mens numerous, inserted with the petals on the throat of the calyx. Ovaries numerous, hairy, inserted on the thin receptacle that lines the inner surface of the calyx-tube. Styles nearly included. Achenia bony. — Prickly shrubs. Leaves unequally pinnate. Stipules united with the petioles. Flowers showy. * Styles cohering, exserted. 1. B. setigera, Michx. Stem long, reclining, smooth ; leaflets 3 - 5, ovate, acuminate or acute, serrate, shining above : petioles, peduncles, and calyx glan- 11* 126 ROSACES. (ROSE FAMILY.) dular ; corymb few-flowered ; petals obcordate ; fruit globose, smooth. — Borders of swamps, Florida to South Carolina, and westward. June. — Stem 10°- 15° long. Flowers 2' - 3' wide, red. * * Styles distinct, included : floivers red or ichite. 2. R. Carolina, L. Stem erect, smooth, armed with stout recurved stipu- lar prickles ; leaflets 5-9, oblong or elliptical, acute, finely serrate, dull and smoothish above, the lower surface paler, or, like the prickly petioles and cau- date calyx-lobes; tomentose ; flowers single or corymbose ; calyx-tube and peduncles glandular-hispid. — Swamps, Florida to North Carolina, and west- ward. June. — Stem 4° - 6° high, commonly purplish. Fruit depressed-globose, glandular. 3. H. lucida, Ehrhart Stem low, erect, armed with bristles and stout stipular prickles ; leaflets mostly 5, elliptical or oblong-lanceolate, sharply ser- rate, smooth and shining above, paler and often somewhat pubescent beneath ; flowers solitary, or 2-3 together ; peduncles and calyx glandular, the latter with foliaceous, often incised lobes. (K. parviflora, Ell } —Florida to Mississippi, and northward, mostly in dry soil, common. May and June. — Stem l°-3° high. A variable species. Stem sometimes smooth. 4. R. rubiginosa, L. (EGLANTINE.) Stem erect or curving, armed with very stout prickles ; leaflets 5-7, oval or obovate, serrate, glandular beneath ; flowers mostly solitary, on hispid peduncles ; fruit obovate. (R. suaveolens, Pursh.) — Waste places in the upper districts : introduced. Branches yellowish- green. Leaves fragrant. 5. B. Isevigata, Michx. (CHEROKEE ROSE.) Stem long, trailing, smooth, the branches armed with very stout and curved prickles ; leaves ever- green, mostly trifoliolate ; leaflets smooth and shining, lanceolate, the midrib his- pid ; stipules deciduous ; flowers large, solitary, white j calyx very bristly. — Common in cultivation. 15. CBAT^IGUS, L. HAWTHORN. Calyx urn-shaped ; the limb 5-cleft, persistent. Petals 5, orbicular, concave. Stamens few or many. Styles 1-5, distinct. Fruit fleshy, containing 1-5 bony nutlets. — Thorny shrubs or trees. Leaves simple, serrate or variously lobed. Flowers white, axillary and solitary, or in corymbs terminating short lateral branches. Stipules on the young branches linear, or lunate and ser- rate. * Corymbs compound, many-flowered. •*- Fruit small, not larger than a pea. 1. C. spatliulata, Michx. Young branches tomentose, otherwise nearly smooth and glandless throughout ; leaves small, spatulate, crenate at the sum- mit ; those on the young shoots larger and incisely lobed ; calyx-lobes very short ; styles 5 ; fruit very small, red. — River-banks, Florida to North Carolina, and west to Mississippi. April. — A small tree. Corymbs sometimes slightly pubescent. Stipules lunate on the young branches. ROSACES. (ROSE FAMILY.) 127 2. C. apiifolia, Michx. Young branches, leaves, and corymbs whitened with soft hairs ; leaves small, deltoid, pinnately 5 - 7-lobed, sharply toothed, nearly smooth when old, truncate or cordate at the base ; styles 1-3, filiform ; fruit globular, red. — River swamps, Florida to North Carolina, and westward. March and April. — A small tree. Leaves £'- 1' long. 3. C. cor data, Ait. Young branches, leaves, and corymbs softly pubes- cent, soon smoothish ; leaves large, deltoid-ovate, truncate or cordate at the base, long-petioled, 3 - 5-lobed and serrate ; spines slender ; fruit globose, red. — River-banks in the upper districts, Georgia, and northward. May and June. — A small tree. Leaves 1 ' - 3' long. Styles 5. 4. C. arborescens, Ell. Smooth; leaves thin, oval or elliptical, acuto at both ends, finely serrate, sometimes obscurely toothed near the apex, on slen- der nearly glandless petioles ; corymbs very numerous ; styles 5 ; fruit ovoid, red. — Banks of rivers, Georgia and Florida, west to Mississippi. March and April. — A small tree, with ash-colored branches. Spines stout or wanting. Leaves l'-2' long, entire at the base, sometimes hairy in the axils of the veins beneath. •*- *- Fruit large (^' - f ' long) ; leaves, $-c. mostly glandular. 5. C. Crus-galli, L. Leaves thick, oblong-obovate, smooth, shining above, finely serrate from near the glandless base ; those on the young branches some- times slightly lobed ; spines long and stout, or sometimes wanting ; corymbs smooth or nearly so ; styles 1 - 3 ; fruit pear-shaped or globose, red. — Woods, Florida to Mississippi, and northward. April and May. — A shrub or small tree. 6. C. COCCinea, L. Smooth ; leaves thin, roundish-ovate, with 3-5 short and sharply serrate lobes on each side, abruptly narrowed into the slender petiole, strongly straight-veined ; those on the young branches often truncate or slightly cordate at the base, and more strongly lobed ; spines stout ; styles 3 - 5 ; fruit large, globose or pear-shaped, bright red. (C. viridis, L. C. populifolia, Ell.) — Open dry woods, Florida to Mississippi, and northward. April and May. — A shrub or small tree. Leaves 1' - 2' long, bright green. 7. C. tomentosa, L. Leaves large (3' - 5' long), broadly ovate or oval, finely serrate, and slightly lobed above the middle, abruptly narrowed into a short margined petiole, pubescent, especially beneath, the veins straight and impressed ; corymbs large, tomentose ; styles 1 - 3 ; fruit pear-shaped, or- ange-red. Var. punctata, Gray. (C. punctata, Jacq.) Leaves smaller and smoother, more strongly furrowed by the impressed veins, and more tapering at the base ; fruit globose, dull red, dotted with white. — Woods and swampy thickets in the upper districts, Georgia and Alabama, and northward. May. — A shrub or small tree. Flowers and fruit large. * * Corymbs simple, 1 - 6-jlowered. 8. C. sestivalis, Torr. & Gray. Glandless ; leaves rigid, pubescent, be- coming smooth above, and rusty-pubescent on the veins beneath, cuneate- obovate, crenate above the middle, tapering into a short petiole ; corymbs 128 ROSACES. (ROSE FAMILY.) smooth, 3-5-flowered; styles 4-5; fruit large, globose, red. — Varies (C. lu- cida, Ell.) with smaller (!'), thinner, and smooth leaves, which are glossy above. — Margins of pine-barren ponds, Florida to South Carolina, and westward. March and April. — A small tree. Leaves 2' - 3' long. Fruit juicy, edible. 9. C. flava, Ait. Glandular ; leaves cuneate-obovate, serrate and slightly lobed near the apex, smooth, tapering into a short petiole ; corymbs smooth, 1 - 4-flowered ; styles 4 - 5 ; flowers and pear-shaped fruit large. — Shady sandy places, Florida to North Carolina, and westward. May. — Tree 15°- 20° high. Leaves 2' -3' long. Fruit greenish-yellow. 10. C. glandulosa, Michx. Branchlets, leaves, and corymbs whitened with soft hairs ; leaves opaque, cuneate, entire or glandular-serrate, tapering into a slender petiole, becoming smoothish ; those on the young branches often spar- ingly lobed ; corymbs 3 - 6-flowered, unilateral ; styles 5 ; fruit small, globose, red. (C. elliptica, Ait.) — Dry pine barrens, Florida to South Carolina, and westward. April. — A small tree, with coarse bark, and long recurved branches. Leaves 1' long. Fruit 3" - 4" long. 11. C. parvifolia, Ait. Leaves obovate, scarcely petioled, serrate, the lower surface, like the branchlets and calyx, pubescent ; spines numerous, long and slender ; flowers mostly solitary ; calyx-lobes large, serrate ; styles 5 ; fruit large, globose or pear-shaped, somewhat hairy. — Sandy soil, Florida to Missis- sippi, and northward. April and May. — A much branched shrub, 3° - 5° high. Leaves 1' long. 16. PYRUS, L. PEAR. APPLE. Calyx urn-shaped, 5-cleft. Petals 5. Stamens numerous. Styles 2 -5. Fruit fleshy or baccate, containing 2-5 cartilaginous, 2-seeded carpels. — Trees or shrubs. Flowers cymose or corymbose. * Leaves simple, glandular : fruit depressed at the base. 1. P. coronaria, L. Leaves on long and slender petioles, ovate, round- ed, or slightly cordate at the base, angled or lobed, serrate, smooth ; corymbs simple, few-flowered ; flowers rose-color, very fragrant ; styles woolly and united at the base. — Eich soil in the upper districts, Mississippi to North Carolina, and northward. April . — A small tree. Leaves 2' - 3' long. 2. P. angustifolia, Ait. Leaves lanceolate or oblong, acute at the base, serrate, short-petioled ; corymbs simple, few-flowered ; flowers rose-color, very fragrant ; styles smooth, distinct. — Open woods, Florida to Mississippi, and northward. April. — A small tree. Fruit very sour. * * Leaves simple, the midrib glandular above : fruit baccate, globose. 3. P. arbutifolia, L. Leaves oval-oblong or somewhat obovate, abruptly acute or mucronate, smooth above, except the midrib, finely serrate ; styles vil- lous at the base. Var. erythrocarpa. Stem tall (5° -10°); branchlets, cymes, and lower surface of the large (2' -4') leaves tomentose and hoary ; petals and anthers red- dish ; berries red. (Aronia arbutifolia, Ell.) CALYCANTHACE.E. (CAROLINA-ALLSPICE FAMILY.) 129 Var. melanocarpa. Stem low (2°- 4°) ; branchlets, cymes, and leaves smooth or nearly so ; leaves small ; petals white ; berries black. (Aronia me- lanocarpa, Ell.} — Swamps, Florida to Mississippi, and northward. March and April. * * * Leaves unequally pinnate : cymes compound : fruit Ixiccate. 4. P. Americana, DC. Leaflets 13-15, lanceolate, acuminate, serrate above the middle, soon smooth ; cymes large, dense ; berry small, globose or pear-shaped, scarlet. (Sorbus microcarpa, Pursh.) — Highest mountains of North Carolina. May and June. — A shrub or small tree. Fruit acid. 17. AMELANCHIER, Medic. Calyx 5-cleft. Petals 5, oblong. Stamens numerous, short. Styles 5, more or less united. Fruit baccate, containing 3-5 cartilaginous 2-seeded carpels ; seeds separated by a false partition. — Shrubs or small trees, with simple leaves, and white flowers in terminal racemes. 1. A. Canadensis, L, var. Botryapium, Torr. & Gray. Branches, leaves, and racemes tomentose when young, soon smooth ; leaves elliptical, ab- ruptly acute, finely and sharply serrate, often slightly cordate ; racemes slender, appearing before the leaves ; petals four times as long as the calyx ; fruit glo- bose, purplish. (Aronia Botryapium, Ell. ) — Woods, Florida to Mississippi, and northward. February and March. — A small tree, with smooth whitish bark. Var. rotundifolia, Torr. & Gray. Shrubby ; leaves roundish-oval, some- what acuminate, sharply serrate; racemes 6-10-flowcred ; petals small, nar- rowly oblong. (Aronia ovalis, Ell.) — Low grounds, chiefly in the upper dis- tricts, Georgia and northward. March. — Shrub 2° - 3° high. The cultivated representatives of this order are the PLUM (PRUNUS DOMES- TICUS, L.), APRICOT (P. ARMENIACA, L.), CHERRIES (P. AVIUM and P. CE- RASUS, Z/.), PEACH (PERSICA VULGARIS, Mill.}, APPLE (PYRUS MALUS, L.), PEAR (P. COMMUNIS, L.), QUINCE (CYDONIA VULGARIS, Pers.), and the ALMOND (AMYGDALUS). ORDER 49. CALYCANTHACE^E. (CAROLINA-ALLSPICE FAMILY.) Shrubs, with opposite and entire leaves, without stipules or pellucid dots. — Sepals and petals numerous and alike, united below into an ob- conical fleshy cup, imbricated in the bud. Stamens numerous, short, inserted within the petals, the inner ones often sterile. Anthers adnatc, extrorse. Ovaries several, enclosed in the calyx-tube, and inserted on its inner face, becoming 1-seeded achenia in fruit. Seeds anatropous, without albumen. Cotyledons convolute. 130 MYRTACE.E. (MYRTLE FAMILY.) l 1. CALYCANTHUS, L. SWEET-SCENTED SHRUB. Calyx -tube closed, leafy-bracted ; the lobes and petals in several rows, lanceo- late, somewhat fleshy. Stamens deciduous. Mature fruit dry, pear-shaped, enclosing the large achenia. — Aromatic shrubs, with opposite or forking branch- es, short-petioled deciduous leaves, and large brownish-purple terminal flowers. 1. C. floridus, L. Branchlets, petioles, and peduncles hoary-pubescent; leaves oval or oblong, mostly acute or acuminate, very rough on the upper surface, tomentose and hoary beneath ; sepals and petals linear-lanceolate, acute. — Banks of streams in the upper districts, North Carolina to Mississippi. April. — Shrub 4° -8° high. Leaves 2' -3' long. Flowers 1' in diameter, very fra- grant. 2. C. laevigatus, Willd. Branchlets, petioles, and peduncles pubescent or smoothish ; leaves oblong or elliptical, mostly acute or acuminate, rough on the upper surface, paler and nearly smooth beneath ; sepals and petals linear- lanceolate, acute. (C. inodorus, Ell, leaves very rough above, but shining ; flowers inodorous.) — Banks of streams, chiefly in the low country, Florida, Georgia, and westward. March and April. — Shrub 4° - 8° high. Leaves 2' - 3' long. Flowers 1^' in diameter. 3. C. glauc US, Willd. Branchlets, petioles, and peduncles smooth ; leaves large, ovate or ovate-lanceolate, acuminate, green and roughish on the upper surface, smooth and glaucous beneath ; flowers large, the sepals and petals lan- ceolate, and abruptly sharp-pointed. — Low shady woods along the mountains of Georgia and North Carolina. May and June. — Shrub 6° - 8° high. Leaves rather rigid, 4' -7' long. Flowers lj'-2' in diameter. The POMEGRANATE (PUNICA GRANATUM, L.) belongs to the allied order GRANATE^E. ORDER 50. MYRTACE^E. (MYRTLE FAMILY.) Trees or shrubs. Leaves opposite, simple, entire, dotted and commonly with an intra-marginal vein. Stipules none. — Calyx 4 - 6-cleft, valvate in the bud, the tube adherent to the compound ovary. Petals 4-6, inserted with the numerous stamens on the throat of the calyx, sometimes wanting. Filaments long, free, or variously combined. Anthers introrse, roundish, longitudinally dehiscent. Style solitary. Seeds without albu- men, fixed to a central placenta. 1. EUGENIA, Micheli. ALLSPICE. Calyx-tube roundish, the limb 4-cleft. Petals 4. Stamens distinct. Ovary 2 - 3-celled, with several ovules in each cell. Fruit baccate, roundish, 1 - 2-celled, 1-2-seeded. Cotyledons thick and united. Eadicle very short. — Flowers white, axillary, solitary, cymose, or clustered, 2-bracted. MELASTOMACE^E. (MELASTOMA FAMILY.) 131 * Flowers in axillary cymes* 1. E. dichotoma, DC. Leaves oblong-obovate, obtuse or cmarginatc, rigid, and, like the branches, roughened with appressed hairs, at length smooth- ish, the margins revolute ; peduncles twice as long as the leaves, 3 - 7-flowered, the central flowers sessile ; calyx-tube obconical, 2-bracted, downy and hoary, the lobes roundish, spreading ; petals orbicular, ciliate ; stamens numerous. — South Florida. — A small tree. Leaves 1' long. Branches compressed. * * Flowers solitary or umbellate. 2. E. procera, Poir. Smooth; leaves ovate, tapering but obtuse at the apex, abruptly contracted at the base into a short petiole ; peduncles solitary or 2-4 together, filiform, not half the length of the leaves, 1 -flowered; calyx-tube hemispherical ; petals orbicular, ciliate ; berry globose, 1 -seeded. — South Flor- ida. May. — A small tree. Leaves 1^'- 2' long. Flowers conspicuous, white and fragrant. Berry as large as a grain of pepper. * * * Flowers minute, in very short cluster-like racemes. 3. E. monticola, DC. Smooth; leaves coriaceous, ovate-oblong, some- what tapering towards the apex, but obtuse or emarginate, contracted at the base into a distinct petiole ; racemes clustered, several-flowered, shorter than the peti- ole ; stamens numerous ; berry globose. — South Florida. — Shrub 4° - 6° high. Branches compressed. Leaves 2' long. Flowers white. Berries abundant, as large as a grain of pepper, black. 4. E. buxifolia, Willd. ? Leaves smooth, coriaceous, obovate-oblong, rounded at the apex, short-petioled ; racemes single or clustered, few-flowered, about as long as the petiole ; flowers minute ; stamens few (9 - 12) or numerous ; berry 1 - 3-seeded. — South Florida. — Varies much in the size of the leaves and berries, length of the petiole, and number of stamens, and probably includes two or more species. 2. CALYPTBANTHES, Swartz. Calyx-tube obovate; the limb entire, opening across like a lid, deciduous. Petals none. Stamens numerous. Ovary 2 - 3-celled, with 2 ovules in each cell. Berry 1-celled, 1-4-seeded. Seeds roundish: testa smooth. Embryo curved ; the long and slender radicle coiled around the distinct unequal folded and contorted cotyledons. — Shrubs or trees. Peduncles axillary, many-flow- ered. 1. C. Chytraculia, Swartz. Leaves ovate and ovate-lanceolate, acumi- nate but obtuse, pubescent, becoming smooth above ; peduncles longer than the leaves, cymose-panicled, tomentose; flowers minute; berry dry, globose, 1-2- seeded. — South Florida. — A small tree. ORDER 51. MELASTOMACE^E. (MELASTOMA FAMILY.) Herbs, shrubs, or trees, with opposite 3 - 9-ribbed leaves, without dots or stipules, and showy flowers. — Calyx urn-shaped, 4 - 6-lobed, persistent, 132 HELASTOMACE^. (MELASTOMA FAMILY.) cohering with the ovary below, or with its angles. Petals 4-6, twisted in the bud, inserted with the 4-12 stamens on the throat of the calyx. An- thers adnate, often appendaged, usually opening by terminal pores. Ovary 3 - 6-celled. Ovules numerous, attached to the central placentae. Style solitary. Fruit baccate and indehiscent, or capsular and loculicidally de- hiscent. Seeds anatropous, without albumen. 1. BHEXIA, L. DEER-GRASS. Calyx-tube prolonged and narrowed above the ovary, 4-cleft. Petals 4, round- ish, deciduous. Stamens 8. Anthers 1-celled, opening by a terminal pore. Capsule 4-celled, many-seeded. — Perennial herbs. Leaves 3 - 5-ribbed. Flow- ers cymose, terminal. * Anthers long, linear, curving upward, saccate at the base, and commonly furnished, with a bristle-like appendage at the insertion of the filaments : flowers purple or whitish. 1. B. Mariana, L. Bristly; stem branched, terete or 6-angled ; leaves lanceolate, acute, short-petioled, bristly serrate ; calyx mostly smooth, cylindri- cal in flower, the neck in fruit as long as the globose capsular portion ; flowers purple. — Varies with narrower, often linear leaves, and smaller whitish flowers. (R. lanceolata, Walt.) — Swamps, Florida to Mississippi, and northward. July -Sept. — Stem l°-2° high. Leaves 3-ribbed. Flowers l£'~2' wide, hairy externally. 2. B. "Virginica, L. Bristly ; stem 4-angled, nearly simple ; leaves ovate and ovate-lanceolate, barely acute, sessile, bristly serrate, the lowest rounded ; neck of the bristly fruiting calyx shorter than the capsular portion ; the lobes ovate, acuminate. — Swamps, chiefly in the upper districts, Mississippi, and northward. July and August. — Stem 6' -12' high. Leaves 3 -5-ribbed. Flowers purple. 3. B. Stricta, Pursh. Stem tall, smooth, 4-winged, bearded at the joints ; leaves lanceolate and ovate-lanceolate, acute or acuminate, 5-ribbed, bristly ser- rate, sessile ; cyme compound ; calyx smooth, urn-shaped, the lobes lanceolate. — Margins of ponds in the pine barrens. Florida, Georgia, and westward. July and August. — Stem 2° -4° high. Leaves rugose, the lateral ribs obscure. Flowers purple. 4. B. glabella, Michx. Stem terete, smooth, mostly simple; leaves lanceolate, sessile, entire or slightly serrulate, thick, smooth and glaucous ; calyx smooth or bristly ; flowers large, bright purple. — Low pine barrens, Florida to North Carolina, and west to Mississippi. June - August. — Eoot spongy. Stem 2° -3° high. Leaves sweetish. * * Anthers short, oblong, erect, not appendaged : neck of the calyx short. •«- Flowers purple : leaves small, ovate or roundish, bristly serrulate. 5. B. ciliosa, Michx. Stem simple, smooth, 4-angled above ; leaves bristly on the upper surface, 3-ribbed ; cyme few-flowered, leafy; calyx smooth.— Bogs in the pine barrens, Florida to Mississippi, and northward. July and LYTHRACEJE. (LOOSESTRIFE FAMILY.) 133 August. Stem l°-l£° high. Leaves rarely 1' long. Flowers !'-!£' in diameter. 6. R. serrulata, Nutt. Low; stem simple, 4-anglcd, smooth; leaves smooth above ; calyx glandular-bristly ; cyme leafy, 1 - 6-flowcred. — Open flat pine barrens, near the coast, Florida, Georgia, and westward. July and August. — Stem 2' -G' high. Leaves and flowers smaller than in the preceding. -t- -»- Flowers yellow. 7. R. lutea, Walt. Stem at length much branched, 4-angled, bristly; leaves smoothish, bristly serrulate, the lower ones obovate and obtuse, the upper lanceolate and acute ; cymes numerous ; calyx short and smooth ; flowers small. — Pine-barren swamps, Florida to North Carolina, and westward. July and August. — Stem 1° high. Petals more persistent than those of the other species. ORDER 52. I/STTHRACE^E. (LOOSESTRIFE FAMILY.) Chiefly herbs, with opposite or whorled and entire leaves, -without stip- ules. Flowers mostly axillary. — Calyx tubular, persistent, 4 - 7-toothed, free from the 2 - 4-celled ovary. Petals as many as the teeth of the calyx and inserted into its throat, deciduous, sometimes wanting. Stamens as many as the petals, or 2-4 times as many, inserted below the petals. Anthers short, introrse. Style solitary. Capsule enclosed in the calyx, 1 - 4-celled, few or many-seeded. Placentae central. Seeds anatropou?, without albumen. — Sinuses of the calyx often appcndaged. Stigma capi- tate, or rarely 2-lobed. Synopsis. * Calyx regular. 1. HYPOBRYCHIA. Calyx hemispherical. Petals none. Stigma 2-lobed. Capsule 2-celled 2. AMMANNIA. Calyx campanulate. Stigma capitate. Capsule 4-celled. 3. LYTHRUM. Calyx cylindrical, striate. Capsule oblong, 2-celled. 4. NES^A. Calyx short, even. Capsule globose, 3 - 6-celled. Stamens 10. * * Calyx gibbous at the base. 5. CUPHEA. Calyx tubular, 12-ribbed. Stamens mostly 12. Capsule early ruptured. 1. HYPOBBYCHIA, M. A. Curtis. Calyx hemispherical or campanulate, 4-lobed. Petals none. Stamens 2-4. Style very short : stigma 2-lobed. Capsule globose, 2-celled. — A submerged aquatic herb, with long filiform stems, opposite crowded pellucid linear leaves, and minute sessile axillary flowers. 1. H. Nuttallii, Torr. & Gray. — Ponds and still water, West Florida to North Carolina, and westward. June -Aug. — Stems 1°- 2° long. Leaves 1' long, acute. Flowers not larger than a pin's head. 12 134 LTTHRACE^E. (LOOSESTRIFE FAMILY.) 2. AMMANNIA, Houston. Calyx globular or campanulate, 4-angled, 4-toothed, the sinuses commonly furnished with a small horn-shaped appendage. Petals 4, small, deciduous, sometimes wanting. Stamens 4, short. Stigma capitate. Capsule globular, 4-celled, many-seeded. — Low smooth annual herbs, with opposite leaves, and solitary or clustered axillary flowers. 1. A. humilis, Michx. Stem branching from the base ; leaves lanceolate, tapering into a petiole ; flowers solitary ; style very short ; petals 4, purplish. — Varies with the leaves dilated and somewhat cordate at the base, and the lower flowers clustered. (A. ramosior, MicJix.) — Ditches and muddy places, Florida to Mississippi, and northward. August and September. — Stem 6' - 12' high. 2. A. occidentalis, DC. Stem nearly simple, ascending, rooting at the base ; leaves lanceolate, narrowed into a petiole ; flowers solitary, apetalous ; calyx 8-toothed. Var. pygmsea. Stem very short (£'-!' long); sinuses of the calyx ap- pendaged, emarginate, as long as the teeth ; style short. — Key West, Dr. Blodgett. — Leaves obtuse. Stem 1 T 6-flowered. 3. LYTHRUM, L. LOOSESTRIFE. Calyx cylindrical, striate, 4 - 7-toothed, usually with minute appendages in the sinuses. Petals 4-7. Stamens as many as the petals, or twice as many, in- serted on the lower part of the calyx, nearly equal. Capsule oblong, 2-celled, many-seeded. — Herbs, with opposite or alternate leaves, and axillary purple or whitish flowers. 1. L. alatum, Pursh. Smooth; stem and virgate branches 4-angled; leaves lanceolate, acute at both ends, opposite, the uppermost alternate, and shorter than the flowers ; petals and stamens 6. — Varies with branches shorter, leaves larger (2' long), broadly lanceolate, sometimes whorled, the uppermost twice as long as the calyx. (L. lanceolatum, Ell.) — Swamps and river-banks, Florida and northward. July - September. — Stem 2° - 4° high. Flowers violet-purple. 2. L. lineare, L. Smooth ; stem 4-angled, much branched ; leaves all opposite, linear ; flowers small, whitish ; petals and stamens 6. — Brackish marshes, Florida and northward. August. — Stem 2° - 4° high. Calyx-teeth short. 4. NES^A, Commerson. Calyx hemispherical or campanulate, with 4-7 erect teeth, and as many longer and spreading horn-like appendages in the sinuses. Petals 4-7. Stamens twice as many as the petals. Capsule globose, 3 - 4-celled. — Perennial herbs or shrubby plants, with opposite or whorled leaves, and clustered pedicelled flowers in their axils. 1. N. verticillata, H.B.K. Shrubby; stems pubescent, recurved; leaves opposite and whorled, lanceolate, tomentose beneath ; peduncles short, 3 or RHIZOPHORACE^E. (MANGROVE FAMILY.) 135 several-flowered ; petals 5, showy ; stamens 10, the alternate ones shorter. (Decodon verticillatum, Ell.) — Marshes and margins of ponds, Florida and northward. August. — Stems 3° - 4° long. Flowers purple. 5. CUPHEA, Jacq. Calyx tubular, 12-ribbed, gibbous or spurred at the base on the upper side, 6-toothed, and usually with as many little appendages in the sinuses. Petals 6, unequal. Stamens 11-12, unequal. Ovary with a gland at the base next the spur of the calyx. Style filiform. Stigma 2-lobed. Capsule 1 - 2-celled, few- seeded. — Chiefly herbs, with branching stems and purplish flowers. 1. C. viscosissima, Jacq. Annual, clammy-pubescent; leaves thin, op- posite, ovate-lanceolate, long-petioled, rough ; flowers nearly sessile, borne be- tween the petioles, solitary ; petals violet-purple ; stamens 12. — Upper districts of Georgia, and northward. August. — Stem 1° high. * 2. C. aspera, n. sp. Perennial; muricate-hispid and clammy; leaves 3 -4 in a whorl, lanceolate, nearly sessile ; peduncles longer than the leaves, borne between the petioles (whorled) ; petals white or pale-purple; stamens 11. — Low pine barrens, St. Joseph's, Florida. Stem 1° - 1£° high. Leaves 1' long, rigid. Boot bearing small tubers. The CRAPE MYRTLE (LAGERSTRCEMIA INDICA, L.), originally from Eastern Asia, is common in cultivation. ORDER 53. RHIZOPHORACE-^. (MANGROVE FAMILY.) Trees or shrubs, growing in maritime swamps, with opposite, entire, co- riaceous leaves, and deciduous stipules between the petioles. — Calyx united with the ovary, 4 - 1 2-lobed, valvate or lid-like in the bud. Petals as many as the calyx-lobes and alternate with them. Stamens twice or several times as many as the petals, and inserted with them on the calyx. Ovary 2-celled with the cells 2-ovuled, or 1-celled and several-ovuled. Ovules pendulous. Fruit 1-celled, indehiscent. Albumen none. Radicle elongated. 1. RHIZOPHOBA, L. MANGROVE. Calyx-tube obovate, the limb 4-lobed, persistent. Petals 4, oblong, emargi- nate, enfolding the alternate stamens in the bud, woolly on the margins. Sta- mens 8. Anthers linear-oblong. Ovary 2-celled. Fruit encircled above the base by the persistent calyx-lobes, at length perforated at the apex by the radicle of the germinating embryo. — Flowers axillary, showy. 1. H. Mangle, L. Leaves obovate-oblong ; peduncles 2 - 3-flowered ; ger- minating embryo clavate ; flowers pale yellow. — Shallow muddy shores, South Florida, forming dense low thickets. 136 COMBRETACEJE. (COMBRETUM FAMILY.) ORDER 54. COMBRETACE.7E. (COMBRETUM FAMILY.) Tropical trees or shrubs, with entire exstipulate leaves, and axillary spiked or capitate flowers. — Calyx-tube coherent with the 1-celled, 2-5- ovuled ovary ; the limb 4 - 5-cleft, mostly deciduous. Petals 4-5, often wanting. Stamens 4-15, inserted with the petals on the calyx. Style slender : stigma simple. Fruit drupaceous or baccate, or dry and indehis- cent, often winged. Seed solitary, suspended, anatropous, without albu- men. Cotyledons convolute or variously folded. 1. LAGUNCITLARIA, Gort. Flowers in spikes. Calyx-tube obconical, the limb 5-parted, obtuse, persist- ent. Petals 5, minute. Stamens 10. Style subulate; stigma capitate. Ovary 1-celled, 2-ovuled. Drupe coriaceous, cuneate-obovate, compressed, angled, 1-seeded. Seeds germinating in the drupe. Cotyledons convolute. Kadicle elongated. — Maritime shrubs, with opposite elliptical smooth and fleshy leaves, on biglandular petioles, and small flowers, in simple or compound axillary and terminal spikes. 1. L. racemosa, Gsert. Spikes erect, rigid, hoary-tomentose, the lateral ones solitaiy, the terminal ones in threes, simple or branched ; flowers scattered ; calyx-tube obconical, furrowed, wing-angled in fruit. — South Florida. June to Aug. — A shrub or small tree, with the habit of the Mangrove. 2. L. glabriflora, Presl. Spikes spreading, slender, smooth, the lateral ones in pairs, the terminal ones in threes or fours ; flowers minute, crowded, deciduous ; calyx-tube cup-shaped, terete, even, with two opposite bractlets ap- pressed to sides. — Banks of the Manitee River, South Florida, Rugel. June. — Perhaps a sterile form of the preceding. 2. CONOCABPUS, Gaert. Flowers densely crowded in a globular head. Calyx-tube about as long as the compressed 2-ovuled ovary ; the limb 5-cleft, deciduous. Petals none. Sta- mens 5-10, exserted. Anthers cordate. Fruit coriaceous, scale-like, closely imbricated and indehiscent. Cotyledons convolute. — Trees or shrubs, with alternate entire and somewhat fleshy leaves. Heads of flowers spiked or panicled. 1. C. erecta, Jacq. Branchlets angular, smooth; leaves smooth, oblong or lanceolate, acute or acuminate, narrowed into a biglandular petiole ; heads of flowers sessile, or on short and spreading pedicels ; cone of fruit ovoid. — Var. SERICEA, DC. Branches, leaves, and panicles silky and hoary; lowest leaves mostly obovate and obtuse or emarginate ; ovary abortive. — Sandy sea-shore, Tampa Bay, Florida, and southward. January and February. — A shrub or small tree. Leaves 2' - 4' long. Heads of fruit 3" - 6" long. Flowers greenish, minute. ONAGRACE^. (EVENING-PRIMROSE FAMILY.) 137 3. TERMINALLY, L. Flowers in spikes, often polygamous. Limb of the calyx deciduous, bell- shaped, 5-cleft, with the lobes acute. Petals none. Stamens 10, in 2 rows, longer than the calyx. Ovary 2-3-ovuled. Style filiform. Drupe dry and indehiscent, 1-seeded. Seed almond-like. Cotyledons spirally convolute. — Trees or shrubs, with mostly alternate leaves, which are crowded at the summit of the branches. 1. T. Catappa, L. Leaves short-petioled, softly pubescent when young, at length smoothish, obovate, wedge-shaped but truncated or slightly cordate at the base, with a depressed gland on each side of the midrib near the base ; spikes very slender, shorter than the leaves, the upper flowers sterile ; drupe ovate, acute, compressed, with the margins somewhat winged. — South Florida. — A large tree. Leaves 4' - 8' long. Flowers minute, pale green. ORDER 55. ONAGRACEJE. (EVENING-PRIMROSE FAMILY.) Calyx adherent to the ovary, and often produced into a tube beyond it, 2-6-lobed, valvate in the bud. Petals as many as the lobes of the calyx, inserted into its throat, convolute in the bud, sometimes wanting. Stamens as many or twice as many, inserted with the petals. Ovary 2 - 4-celled. Placenta central. Style solitary: stigma capitate or 2-4-lobed. Cap- sule loculicidally dehiscent or indehiscent. Seeds anatropous, with little or no albumen. — Chiefly herbs. SUBORDER I. ONAGRACEJE. Styles slender. Fruit 4-valved (indehiscent in Gaura). Seeds attached to a central placenta, without albumen. * Calyx-tube produced beyond the ovary. 1. GAURA. Capsule nut-like, indehiscent, 1-4-seeded. 2. (ENOTHERA. Capsule 4-valved, many-seeded. * * Calyx-tube not produced beyond the ovary. 3. EPILOBIUM. Stamens 8. Petals 4. Seeds comose. 4. JUSSLEA. Stamens 8 -12. Petals 4 -6. Capsule long. Seeds naked. 6. LUDW1GIA. Stamens 4. Petals 4, or none. Capsule short, many-seeded. 6. CIBC^IA. Stamens 2. Capsule obovate, 1-2-seeded. SUBORDER II. HALORAGE.ZE. Styles very short or none. Fruit indehiscent. Seeds suspended, solitary in each cell. Albumen thin. — Flowers minute, axillary. 7. PROSERPINACA. Flowers perfect. Stamens 3. Capsule 3-angled. 8. MYRIOPHYLLUM. Flowers monoecious. Stamens 4 -8. Capsule 4-angled. 1. GAURA, L. Calyx-tube much produced beyond the ovary, the limb 3-4-lobed, rcflexed, deciduous. Petals 3-4, clawed, unequal or turned to the upper side. Stamens 12* 138 ONAGRACE^E. (EVENING-PRIMROSE FAMILY.) 6-8. Style declined : stigma 4-lobed. Ovary 3-4-celled. Fruit 3 - 4-angled, mostly 1-celled, 1 -4-seeded. — Herbs with alternate leaves, and white or purple flowers in a long-peduncled raceme or spike. 1. G. biennis, L. Soft-hairy; leaves oblong-lanceolate, acuminate, be- coming smoothish, wavy-denticulate on the margins ; petals spatulate, white ; fruit obtusely 4-angled, acuminate at both ends, sessile. — Dry soil, Georgia to Tennessee, and northward. July and August. (|) — Stem 3° - 8° high. Spikes compound. j 2. G. angUStifolia, Michx. Stem simple, or sparingly branched, closely pubescent ; leaves lanceolate, acute, coarsely-toothed, often blotched with purple ; the uppermost linear and nearly entire ; fruit nearly sessile, acute at both ends, sharply 3 -4-angled. — Dry old fields and sandy places near the coast, Florida to North Carolina, and westward. June - August. (2) — Stem 2° - 3° high. Flowers white. 3. G. filipes, Spach. Pubescent and somewhat hoary, becoming smooth- ish ; stem slender, paniculately branched ; leaves linear, toothed, wavy ; fruit ovoid, obtuse, sharply 4-angled, on slender pedicels. — Dry pine barrens, Florida to South Carolina, and westward. July - Sept. (f) ? — Stem 2° - 3° high, very leafy. 2. CENOTHEBA, L. EVENING-PRIMROSE. Calyx-tube produced beyond the ovary ; the limb 4-lobed, reflexed and decid- uous. Petals 4. Stamens 8. Stigma 4-lobed. Capsule 4-valved, many-seeded. — Herbs, with alternate leaves, and axillary or racemose chiefly yellow flow- ers. Pollen-grains triangular, connected by cobwebby hairs. * Capsule cylindrical, sessile: flowers expanding at night : annuals or biennials. 1. CE. biennis, L. Hairy, hirsute, or smoothish ; stem tall, often simple ; leaves lanceolate and ovate-lanceolate, acute, wavy and toothed or serrate on the margins ; the earliest ones sometimes pinnatifid ; spikes leafy, at length elon- gated ; calyx-tube longer than the lobes ; flowers large. (CE. muricata, Pursh. CE. grandiflora, Ait.} — Fields and waste places, everywhere. June -Sept. — Stem 2° - 4° high. Varies greatly in pubescence and size of the flower. 2. CE. sinuata, L. Hairy or downy ; stems ascending or diffuse; leaves oblong, pinnately lobed, the lowest pinnatifid ; flowers small, axillary ; calyx and capsule hairy. Passes through several intermediate forms into Var. HUMI- FITSDM, Torr. & Gray. Stems prostrate, hoary ; leaves small, lanceolate, spar- ingly toothed or entire. — Fields and waste places, common ; the variety in drifting sand along the coast. May - Sept. — Stems 2' - 2° high. * * Capsule obovate or clavate, furrowed, and more or less pedunckd : flowers ex- panding in sunshine. 3. CE. glauca, Machx. Smooth and somewhat glaucous ; leaves sessile, oblong-ovate, wavy-denticulate, acute ; racemes few-flowered, leafy ; flowers large ; capsule ovoid-oblong, 4-winged, tapering into a short pedicel. (CE. Fraseri, Pursh.) — Mountains of Georgia, North Carolina, and Tennessee. May ONAGRACE.*:. (EVENING-PRIMROSE FAMILY.) 139 -July. Ij. — Stem branching, 2° -3° high. Leaves 2' -3' long. Flowers 2 ' in diameter. 4. CE. riparia, Nutt. Stem slightly pubescent, very leafy ; leaves linear- lanceolate, remotely denticulate, narrowed into a short petiole ; raceme short, leafy at the base, elongated in fruit ; flowers large ; capsule oblong-clavate, dis- tinctly pedicellcd, slightly 4-winged, with 4 strong intermediate ribs. — Swamps and river-banks, Florida and northward. June and July. (2) — Stem 2° - 3° high. Leaves 2' - 4' long, pubescent on the midrib and margins. Flowers 2' in diameter. 5. (E. frilticosa, L. Hairy or smoothish ; stem mostly simple ; leaves lanceolate, commonly wavy and remotely denticulate on the margins ; raceme at first corymb-like, at length elongated ; flowers large ; capsule 4-winged, with in- termediate ribs, oblong-clavate, longer than the pedicel. — Fields, Mississippi to North Carolina, and northward. June -Sept. ty— Stem l°-2° high. Flow- ers 1' - 2' in diameter. 6. CE. linearis, Michx. Stem slender, smooth below, pubescent above ; the young branches hoary ; lowest leaves obovate ; the others linear-lanceolate, entire or sparingly denticulate ; raceme short, many-flowered, leafy ; capsule ob- ovate, 4-winged, with conspicuous intermediate ribs, mostly shorter than the pedicel. — Dry light soil, Florida to Mississippi, and northward. April - June. — Stem 1° - 1 £° high. Flowers 1' in diameter. 7. CE. pumila, L. Low, smoothish; leaves lanceolate, obtuse; raceme leafy ; flowers small ; capsule oblong-obovate, 4-wing-angled, nearly sessile. — Mountains of Georgia and Carolina, and occasionally also around dwellings in the low country, from seeds introduced in Northern hay. June. — Stem 6'- 12' high. Flowers £' in diameter. 8. CE. linifolia, Nutt. Low, smoothish ; stem at length much branched ; leaves very numerous, linear-filiform, the lowest spatulate ; raceme pubescent, few-flowered ; bracts shorter than the ovary ; flowers small ; lobes of the stigma coherent into a globular head ; capsule obovate, 4-angled, nearly sessile. — Gravelly hills, near Scott's mill, Warren County, Georgia, and westward. June. — Stem 6' - 12' high. Flowers 4" - 5" in diameter. 3. EPILOBIUM, L. WILLOW-HERB. Calyx-tube not prolonged beyond the ovary; the limb 4-cleft, deciduous. Petals 4. Stamens 8. Capsule elongated, many-seeded. Seeds with a tuft of long hairs at the apex. — Perennials, with alternate and opposite denticulate leaves, and chiefly white or purple flowers. 1. E. angustifolium, L. Stem tall, simple, smoothish ; leaves alternate, lanceolate, entire or wavy on the margins, paler beneath ; racemes elongated, bracted ; flowers showy ; petals obovate, purple ; stigma 4-lobed ; capsule and calyx hoary-tomentose. (E. spicatum, Lam.) — Mountains of North Carolina and northward. July. — Stem 3° - 6° high. 140 ONAGRACEJE. (EVENING-PRIMROSE FAMILY.) 2. E. COloratum, Muhl. Stem smoothish, much branched ; leaves mostly- opposite, lanceolate or ovate-lanceolate, denticulate ; raceme leafy ; flowers small, reddish; petals 2-cleft ; stigma clavate; capsule downy. (E. tetragonum, Ph., Ell.) — Swamps in the upper districts, Mississippi to North Carolina, and north- ward. August. — Stem 1 ° - 2° high. 3. E. palustre, L., var. lineare, Gray. Stem pubescent, branching above ; leaves linear, slightly denticulate, the lower ones opposite ; raceme leafy ; flowers small, white or rose-color ; stigma clavate ; capsule hoary. — Mountains of North Carolina, and northward. August. — Stem 1° - 2° high. 4. JUSSLEA, L. Calyx-tube long, 4-angled or cylindrical, not prolonged beyond the ovary ; the limb 4-6-lobed, persistent. Petals 4-6. Stamens 8-12. Capsule mostly elongated, 4 - 6-celled, many-seeded, opening irregularly at the sides. — Marsh herbs, with alternate leaves, and axillary yellow flowers. 1. J. leptocarpa, Nutt. Hairy; stem erect, at length much branched; leaves lanceolate, acute ; flowers small ; calyx-lobes mostly 6, as long as the petals ; capsule linear, cylindrical, much longer than the pedicel. — Marshes, Florida, and westward. June -Sept (J)— Stem 2° -5° high. Capsule !£'• long, slightly curved. 2. J. grandiflora, Michx. Hairy ; stem creeping at the base ; leaves lanceolate, acute ; flowers large ; calyx -lobes 5, half as long as the petals ; ovary (rarely maturing) rather shorter than the pedicel. — Marshes, South Carolina, and westward. May -August. 1|. — Stem 2° - 3° long. Flowers 2' in diam- eter. Capsule cylindrical. 3. J. decurrens, DC. Smooth; stem erect, branched, wing-angled; leaves lanceolate, acute, sessile ; flowers nearly sessile ; calyx-lobes 4, nearly as long as the petals; stamens 8; capsule 4-angled, oblong-clavate. (Ludwigia decurrens, Ell.) — Ditches, &c., Florida to North Carolina, and westward. July - Sept. © — Stem 6' - 3° high. 5. LUDWIGIA, L. SEED-BOX.^ Calyx-tube 4-angled or cylindrical, mostly short, not prolonged beyond the ovary. Petals 4, roundish or obcordate, often wanting. Stamens 4. Style short. Stigma capitate. Capsule variously dehiscent, 4-celled, many-seeded. — Perennial and mostly stoloniferous marsh herbs, with entire leaves, and yellow flowers. * Capsule cubical, indehiscent, discharging the seeds through a central pore of the convex disk : calyx-lobes deciduous : petals large : stamens and style slender : leaves alternate : flowers pedicelled. 1. L. alternifolia, L. Smoothish; stem much branched ; leaves lanceo- late, short-petioled, acute ; calyx-lobes spreading, about as long as the petals ; capsule large, wing-angled. (L. macrocarpa, Michx.) — Shady swamps, Florida ONAGRACE^E. (EVENING-PRIMROSE FAMILY.) 141 to Mississippi, and northward. August. — Stem 2° - 3° high. Flowers axillary, or the upper ones somewhat racemed. 2. L. virgata, Michx. Tomentose; stem slender, simple, or branching from the base ; leaves obtuse, sessile, the lowest oblong, the uppermost linear ; flowers in elongated leafy racemes ; petals twice as long as the reflcxed calyx- lobes ; capsule strongly 4-angled. — Low pine barrens, sometimes in rather dry places, Florida to North Carolina, and westward. July and August. — Stem 2° - 3° high. Varies considerably in pubescence, and size of the flowers and capsule. 3. L. hirtella, Raf. Hairy; stem slender, simple or sparingly branched ; leaves short, lanceolate or oblong, obtuse, sessile and rounded at the base ; flow- ers axillary ; petals twice as long as the erect or spreading calyx-lobes ; capsule strongly angled. (L. pilosa, Ell.) — Flat pine barrens, Florida to Mississippi, and northward. August. — Stem 2° - 3° high. * * Valves of the capsule separating from the concave disk, and irregularly from the persistent partitions and placenta : calyx-lobes persistent : petals small or none : sta- mens and style short : stems erect or ascending : leaves alternate : flowers sessile. -i- Petals conspicuous. 4. L. linearis, Walt. Smooth; stem (l°-3° high) virgately much branched ; leaves linear, acute ; flowers small ; capsule clavate-oblong, with 4 rounded angles, 2-3 times as long as the triangular-ovate calyx-lobes. — Ditch- es and ponds, Florida to Mississippi, and northward. July - Sept. — Bark at the base of the stem spongy. 5. L. linifolia, Poir. Smooth; stem low (6' -12'), creeping at the base, branching ; leaves linear or linear-spatulate, often obtuse ; capsule linear-cylin- drical, rather longer than the lanceolate calyx-lobes. — Ditches and swamps in the low country, Florida to North Carolina, and westward. July - Sept. •t— •»— Petals minute or wanting. 6. L. cylindriea, Ell. Smooth ; stem angled above, often much branched ; leaves long, lanceolate, obscurely denticulate, acute, tapering into a petiole; petals none ; capsules axillary, often clustered, cylindrical or obscurely 4-sided, many times longer than the small calyx-lobes. — Swamps, Florida to South Carolina, and westward. July -Sept. — Stem mostly bushy, 2° -3° high. Leaves 3' -4' long. 7. L. pilosa, "Walt. Tomentose ; stem stout, terete, much branched ; leaves sessile, lanceolate or oblong, acute; flowers in dense terminal spikes; petals mostly wanting ; capsule globose - 4-sided, about as long as the spreading calyx- lobes. (L. mollis, Ell.) — Ditches and ponds near the coast, Florida to North Carolina, and westward. July - Sept. — Stem 2° - 3° high, the branches spread- ing. Capsule whitish. ,;. . •,..„' .- 8. L. sphserocarpa, Ell. Smooth or slightly pubescent ; stem slender, angled above, short-branched ; leaves linear-lanceolate, acuminate ; flowers very small, axillary ; petals none ; capsule globose, pubescent, as long as the calyx- lobes. — Margins of ponds, Florida to Mississippi, and northward, not common. July- Sept. — Stem 2° -3° high. Capsule l"-2" long. 142 ONAGRACE^E. (EVENING-PRIMROSE FAMILY.) 9. L. capitata, Michx. Smooth; stem mostly simple, slender, angled above ; leaves long, lanceolate, acute, sessile, the lowest ones broader and ob- tuse ; flowers in a compact oblong or ovate head, the lower ones sometimes scattered ; petals minute, mostly wanting ; capsule obtusely 4-anglcd, somewhat narrower at the base, longer than the calyx -lobes. — Wet pine barrens, Florida to North Carolina. July and August. — Stem 2° - 3° high. 10. L. lanceolata, Ell.? Smooth; stem stout, terete, at length much branched ; leaves lanceolate, sessile ; flowers very numerous, in all the axils, green ; petals none ; capsule cubical, with the sides flat and the angles mar- gined, twice as long as the calyx-lobes; seeds cylindrical. — Ponds and swamps in the pine barrens, Florida and Georgia. July -Sept. — Stem l°-2° high. Flowers small. ' 11. L. alata, Ell. Smooth; stem slender, simple or sparingly branched near the summit, strongly angled ; leaves cuneate-lanceolate, obscurely denticu- late ; flowers few, near the summit of the branches, white ; petals none ; capsule cubic-obconical, with concave sides and winged angles, as long as the calyx- lobes ; seeds ovoid. — Brackish marshes, Florida to North Carolina, and west- ward. July and August. — Stem 2° - 3° high. 12. L. microcarpa, Michx. Smooth; stem low, creeping at the base, 3-angled, mostly simple ; leaves spatulate-obovate ; petals none ; capsule mi- nute, cubic-obconical, shorter than the calyx-lobes. — Muddy places, Florida to North Carolina, and westward. July and August. — Stem 6' -12' high. Cap- sule scarcely larger than a pin's head. * * * Stems creeping : leaves opposite. H- Petals none. 13. L. palustris, Ell. Smooth ; stems diffuse ; leaves obovate, tapering into a long petiole ; capsule oblong or obconical, obscurely 4-sided, longer than the calyx-lobes. — Ditches and muddy places, common. June- Sept. — Stems 6' -12' long. 14. L. spathlllata, Torr. & Gray. Pubescent and somewhat hoary; leaves spatulate-obovate ; capsule ovoid ; otherwise like the preceding. — Mar- gins of pine-barren ponds, Middle Florida. July and August. t- H- Petals 4. 1 5. L. natans, Ell. Smooth ; stems diffuse ; leaves obovate, acutish, ta- pering into a long petiole ; flowers short-pedicelled ; petals roundish, as long as the lobes of the calyx ; capsule obtusely 4-angled, narrowed at the base. — Marshes and margins of streams, Florida to North Carolina, and westward. July- Sept. — Resembles No. 13, but is every way larger. 16. L. arcuata, Walt. Smooth; leaves lanceolate, narrowed at the base, acute ; flowers on peduncles usually longer than the leaves, 2-bracted at the base ; calyx-lobes linear-lanceolate, shorter than the obovate petals ; capsule cla- vate, curved. — Muddy margins of ponds, &c., Florida to North Carolina. July. — Stems 4' - 8' long. ONAGRACE.E. (EVENING PRIMROSE FAMILY.) 143 6. CIRC.2EA, Tourn. Calyx-tube slightly produced beyond the ovary, the limb 2-cleft, deciduous. Petals 2, obcordate. Stamens 2. Style filiform. Capsule obovate, 1 - 2-celled, 1 - 2-seeded, bristly with hooked hairs. — Perennial herbs, with opposite petioled leaves, and small white or rose-colored flowers in loose terminal racemes. 1. C. Lutetiana, L. Minutely pubescent ; leaves ovate, acuminate, slight- ly toothed, usually longer than the petioles; bracts none; capsule hispid.— Damp shades along the mountains, Georgia and northward. July. — Stem l°-2° high, tumid at the joints. Fruit reflexed. Flowers reddish-white. 2. C. alpina, L. Smooth; stem low (3' -8'); leaves cordate, coarsely toothed, as long as the petioles ; pedicels minutely bracted ; capsule hairy. — With the preceding. 7. PROSERPINACA, L. Calyx-tube 3-sided, 3-lobed. Petals none. Stamens 3. Stigmas 3. Fruit bony, 3-angled, 3-celled, 3-seeded. — Herbs with pinnately dissected leaves, and minute axillary greenish flowers. 1. P. palustris, L. Leaves lanceolate, sharply serrate, the submerged ones pectinate. — Ponds and ditches, Florida to Mississippi, and northward. June -August. — Stem 1°- l£° long, ascending or floating. 2. P. pectinacea, Lam. Leaves all pectinate, the divisions filiform; fruit rugose. — With the preceding. — Stem 3'- 12' long. 8. MYBIOPHYLLUM, Vail. WATER-MILFOIL. Flowers monoecious or polygamous. Calyx 4-parted in the sterile flowers, 4- toothed in the fertile ones. Petals 4 or none. Stamens 4 or 8. Stigmas 4, recurved. Fruit bony, 4-celled, 4-lobed, indehiscent. — Aquatic perennial herbs, with the submerged leaves pinnately divided into filiform or capillary segments, and commonly whorled. Flowers minute in the axils of the upper leaves ; the uppermost sterile. * Stamens 8 : fruit even or warty. 1. M. laxum, Shuttl. Stem long, slender ; leaves 4 in a whorl ; the floral ones reduced to minute nearly entire spatulate bracts, shorter than the flowers, which thus form an interrupted almost naked spike ; fruit roughened with mi- nute warts, with the lobes obtuse. — Ponds and lakes, Middle and West Florida. — July. 2. M. verticillatum, L. Leaves in whorls of 3-4, the floral ones linear, pectinately toothed, much longer than the flowers ; fruit smooth. — Still water, Florida, and northward. July. — Stem 2° - 4° long, stouter than the last. * * Stamens 4 : fruit ridged and roughened. 3. M. heterophyllum, Michx. Stem thick; leaves 4-6 in a whorl, the floral ones crowded, ovate or lanceolate, finely and sharply serrate ; the lower 144 CACTACE.E. (CACTUS FAMILY.) ones pinnatifid ; fruit slightly roughened. — Ponds and ditches, Florida, and northward. July. 4. M. scabratum, Michx. Stem short (6' -12') ; leaves 4- 5 in a whorl, the divisions few and capillary, the floral ones linear, pectinately toothed ; fruit strongly ridged and roughened. — Shallow ponds, South Carolina, and north- ward. June and July. ORDER 06. CACTACEJE. (CACTUS FAMILY.) Succulent, shrubby, and commonly leafless and prickly plants, with globular, or columnar and angular, or flattened and jointed stems, and solitary sessile flowers. — Sepals and petals similar, imbricated in several rows, and adherent to the 1 -celled ovary. Stamens indefinite, with long filaments, inserted on the base of the petals. Style single : stigmas nu- merous. Fruit baccate. Seeds numerous, campylotropous, borne on several parietal placentas. Albumen scanty or none. 1. CEREUS, Haw. Sepals and petals united into an elongated tube above the ovary. Stamens inserted on the tube. Style filiform. Stigma many-lobed. Seeds without al- bumen.— Stems elongated, ribbed or angled; the angles bearing tufts of spines and showy flowers. 1. C. monoclonos, DC.? Stem tall, columnar, 6-8-angled, green; angles obtuse ; spines short, brownish. — Key West. — Stem 4° - 10° high. Flowers 6' long, the inner petals lanceolate, acuminate, white ; the outer ones linear, greenish, and gradually diminishing into the scales of the tube. Stigmas 10 or more, filiform, exserted. Stamens included. 2. C. triangularis, Haw. ? Stem elongated, jointed, 3 -sided, rooting at the joints ; flowers greenish externally, white within, very large ; fruit large, naked. — Key "West. — Stem, climbing over bushes. Joints 1° long. 2. OPUNTIA, Tourn. PRICKLY PEAR. Sepals and petals not united into a tube. Stamens inserted into the base of the petals. Style cylindrical. Stigma 3 - 8-lobed. Seeds with thin albumen. Stems with flat or rarely cylindrical joints. Leaves fleshy, with tufts of bristly hairs and commonly strong spines in their axils, deciduous. Flowers large, yellow. /I. O. FicUS-IndiCTlS, Haw. Stem erect, spreading; joints oval and obovate ; leaves subulate, bristly in the axils, without spines ; fruit bristly, ob- ovate, red within, edible. — South Florida. May. — Joints 1° long. 2. O. VUlgariS, Mill. Stem prostrate; joints obovate, pale; spines few and short ; fruit nearly smooth. — Dry sandy soil, Florida and northward, near the coast. June and July. GROSSULACEJE. (CURRANT FAMILY.) 145 3. O. pOlyantha, Haw. Stem erect ; joints oblong ; spines yellow, strong, unequal ; flowers numerous around the summit of the joints ; stigmas 6. — Key West, and waste places around Apalachicola, Florida. June. 4. O. Pes-Corvi, Leconte. Stems prostrate, diffuse; joints small (!'- 3'), cylindrical or somewhat flattened, easily separable, spiny ; spines by pairs, un- equal, elongated; sepals and petals 8-12, cuneate; stigmas 4; fruit small, fleshy, bristly, 1 - 2-seeded. — Barren sandy places along the coast, Florida and Georgia. May. — Stems 1 ° - 2° long. ORDER 57. GROSSULACE^E. (CURRANT FAMILY.) Spiny or unarmed shrubs, with alternate palmately veined and lobed leaves, without stipules, and with axillary racemose or clustered flowers. — Calyx-tube adherent to the ovary, the limb 5-lobed. Petals 5, small. Sta- mens 5. Ovary 1-celled, with 2 parietal placentae. Styles more or less united. Fruit a 1-celled, many-seeded berry. Seeds anatropous, with the minute embryo at the base of hard albumen. 1. KIBES, L. CURRANT. GOOSEBERRY. Character same as the order. * Stems spiny and commonly bristly : peduncles 1 — 3-flowered. 1. R. Cynosbati, L. Leaves on slender petioles, slightly cordate, round- ish, 3 -5-lobed, pubescent; peduncles 2-3-flowered; stamens and single style not longer than the broad and short calyx-tube ; petals obovate ; berry mostly prickly. — Mountains of North Carolina, and northward. July. — Stem smooth or bristly. Leaves l'-2' in diameter. 2. R. rotundifolium, Michx. Leaves small, smoothish, roundish, 3-5- lobed, often acute at the base, on slender petioles ; peduncles 1 - 2-flowered ; stamens and 2-partcd style longer than the narrow-cylindrical calyx-tube ; petals spatulate ; berry small, smooth. — Mountains of North Carolina, and northward. — Shrub 3°- 4° high, often unarmed. Leaves £' - 1' in diameter. 3. R. gracile, Michx. Axillary spine very short ; leaves on slender peti- oles, pubescent on both sides, the lobes acute, incised, and acutely toothed ; peduncles long, capillary, erect, 1 - 2-flowercd ; calyx smooth, tubtilar-campanu- late. — Mountains of Tennessee. * * Stems without spines or bristles : racemes many-flowered. 4. R. prostratum, L'Herit. Leaves long-petioled, deeply cordate, with about 5 spreading incised and serrate lobes, smootli ; racemes erect ; styld^2- cleft; berry glandular-bristly. — Mountains of North Carolina, and northward. May and June. — Stems reclining. Kacemes 3' -5' long. Leaves 2' -3' in diameter. 5. R. resinosum, Pursh. Plant clothed in every part with resinous glan- dular hairs ; leaves roundish, 3 - 5-lobed ; racemes erect ; bracts linear, longer 13 146 TUKNERACE^E. (TURNERA FAMILY.) than the pedicels ; calyx flattish ; petals obtusely rhomboidal ; fruit hirsute. Mountains of North Carolina. April and May. ( * ) ORDER 58. LOASACE^E. (LOASA FAMILY.) Herbs, commonly armed with bristly barbed and stinging hairs. Leaves alternate, exstipulate. Flowers solitary or clustered. — Calyx-tube ad- herent to the 1-celled ovary, the limb 5-parted and persistent. Petals 5 or 10, inserted on the throat of the calyx. Stamens mostly indefinite, in several parcels, inserted with the petals. Styles united. Capsule irregu- larly dehiscent. Seeds few or many, borne on 3 - 5 parietal placentae, commonly with scanty albumen. 1. MENTZELIA, Plum. Calyx-tube cylindrical or club-shaped. Petals convolute in the bud. Sta- mens commonly 30 or more, the exterior ones often dilated and sterile. Styles 3, united to the middle. Capsule 3-valved at the summit, with 3 parietal pla- centae. Cotyledons broad and flat. — Stems branching. Leaves toothed or sinuate-pinnatifid. Flowers yellow. 1. M. Floridana, Nutt. Leaves deltoid-ovate, toothed, truncate and 2- lobed at the base; stamens about 30; capsule 6-seeded. — South Florida. — Stem 1° high, Flowers small, golden-yellow. ORDER 59. TURNERACEA]. (TURNERA FAMILY.) Herbs or shrubs, with alternate simple exstipulate leaves, and solitary axillary flowers. — Calyx free from the 1-celled ovary, colored, 5-lobed, deciduous. Petals 5, inserted on the throat of the calyx, convolute in the bud. Stamens 5, inserted into the tube of the calyx below the sta- mens. Styles 3, distinct, simple, 2-cleft or 2-parted. Stigmas 3 or 6, many-parted. Placentae 3, parietal. , Capsule loculicidally 3-valved, many-seeded. Seeds anatropous, arilled. Embryo in flashy albumen. — Flowers sessile, or on bracted or jointed pedicels. 1. PIRIQUETA, Aublet. Calyx campanulate. Styles 3, 2-cleft or deeply 2-parted. Stigmas 6, many- parted. Capsule opening to the base into 3 valves. — Herbs with stellate pubes- cence. Flowers on jointed pedicels, yellow. 1. P. fulva. Hirsute with fulvous hairs, and stellate-tomentose ; stem simple or sparingly branched ; leaves lanceolate, obtuse, mostly serrate or toothed, nearly sessile; pedicels (at least the upper ones) longer than the leaves, PASSIFLORACE^:. ( PASSION-FLOWER FAMILY.) 147 often bibracteolate ; petals obovate ; styles 2-parted. (Turnera cistoidcs, Ell. P. villosa, Aub. ?) — Dry light soil, Florida to North Carolina. June and July. 1J. — Stem 1° high. Leaves 2' -3' long, the lowest ones broader. 2. P. tomentosa, H. B. K. Stellate-tomentose throughout; stem sim- ple ; leaves nearly sessile, oblong, acute or obtuse, obscurely crenate, hoary be- neath; pedicels shorter than the leaves. — South Florida. — Stem 1° high. Leaves rather rigid, 1' long. 3. P. glabra. Stem slender, branching, smooth; leaves smooth, linear, entire, the floral ones small and bractlike ; pedicels several times longer than the leaves, and, like the calyx, stellate-tomcntose ; petals spatulate ; styles 2-clcft. (Turnera glabra, DC.?) — South Florida. — Stem l°-2° high. Leaves 2' long. Flowers 1' in diameter. ORDER 60. PASSIFL.ORACEJE. (PASSION-FLOWER FAMILY.) Climbing herbs or shrubs, with alternate mostly stipulate leaves, and ax- illary often showy flowers. — Calyx of 4 - 5 more or less united sepals, commonly bearing at the throat 4-5 petals, and a crown of slender fila- ments in one or more rows. Stamens 4-5, monadelphous below and en- closing the stipe of the ovary. Ovary 1 -celled, with 3-4 parietal pla- centae. Styles 3-4, clavate. Fruit fleshy or baccate. Seeds numerous, anatropous, included in a pulpy sac. Embryo in the axis of fleshy albu- men. 1. PASSIFLORA, L. PASSION-FLOWER. MAY-POP. Calyx-tube very short. Filaments of the crown in 2 or more rows. Fruit baccate, — Tendrils axillary. Peduncles jointed, 1 -flowered. 1. P. incarnata, L. Leaves palmately 3-lobed, acute, serrate; petioles biglandular ; peduncles 3-bracted ; sepals with a horn-like point below the apex, whitish within ; filaments of the crown in about 5 rows, the two outer ones as long as the sepals ; berry large, oval. — In open or cultivated ground, common. June and July. 1|.— Fruit yellowish, as large as a hen's egg. Flowers purple and white. 2. P. lutea, L. Leaves cordate, broadly 3-lobed at the summit, with the lobes rounded and entire ; petioles glandless ; flowers small, greenish-yellow ; peduncles by pairs, bractless ; filaments of the crown in 3 rows, shorter than the sepals. — Woods and thickets, Florida to Mississippi, and northward. June and July. Ij. — Fruit oval, purple, £' in diameter. 3. P. suberosa, L. Leaves smooth, slightly fringed on the margins, 5- nerved at the base, divided above the middle into 3 ovate entire acute lobes, the middle lobe largest; petioles short, biglandular above the middle; peduncles commonly by pairs ; flowers greenish ; petals none ; filaments of the crown shorter than the sepals, purple at the base ; fruit purple. — South Florida. 148 CUCURBITACEJE. (GOURD FAMILY.) 4. P. angUStifolia, Sw'artz. Lower leaves mostly 3-lobed, with the lobes lanceolate, obtuse, and entire ; upper leaves simple, lanceolate, and acute ; peti- oles short, biglandular ; flowers small, solitary or by pairs, the peduncles short and bractless ; petals none, — South Florida. — Stem l°-2° long. Leaves sometimes entire. Flowers 4" - 6" wide, yellowish. Berry purple, as large as a pea. Filaments of the crown in 2 rows. Stamens occasionally 4. Stipules subulate. 5. P. Warei, Nutt. Leaves on short biglandular petioles ; the lower ones 3-lobed, acute ; the upper ovate or oblong, undivided ; stipules subulate ; pedun- cles commonly by pairs, about the length of the petioles ; flowers very small ; segments of the crown few, filiform, shorter than the calyx. — South Florida. — Probably identical with P. pallida of the West Indies. ORDER 61. CUCURBIT A CE^E. (GOURD FAMILY.) Herbs, with succulent stems, climbing by means of lateral tendrils. Leaves alternate, palmately veined or lobed. Flowers axillary, monoe- cious or dioecious. — Calyx 5-toothed, adnate to the ovary. Corolla of 5 distinct, or more or less united petals, coherent with the calyx. Stamens 3-5, free or variously united. Anthers long, straight or tortuous, com- monly connate. Ovary 1 - 3-celled. Stigmas 3. Fruit (pepo) fleshy or pulpy, 1 - 3-celled. Seeds compressed, anatropous, without albumen. Cotyledons leafy. Synopsis. 1. BRYONIA. Petals 5, distinct, or united at the base. Ovary 3-celled. Fruit 3-seeded, smooth. 2. MELOTHRIA. Petals 5, united into a campanulate corolla. Ovary 3-celled. Fruit many -seeded, smooth. 3. SICYOS. Petals 5, united at the base into a rotate corolla. Ovary 1-celled. Fruit 1- seedcd, hispid. 1. BRYONIA, L. Flowers monoecious or dioecious. Calyx 5-toothed. Petals 5, distinct, or united at the base. Stamens 5, triadelphous : anthers tortuous. Style mostly 3-cleft. Fruit ovate or globose, smooth, few-seeded. 1. B. Boykinii, Torr. & Gray. Rough-pubescent; leaves broadly cor- date, 3 - 5-lobed ; the lateral lobes entire or toothed, the middle one cuspidate ; sterile and fertile flowers intermixed, 3-5 in a cluster, short-pedicelled ; styles united ; fruit 3-seeded ; the seeds 3-toothed at the base. — River-banks, Georgia, and westward. June and July. — Stems elongated. Flowers greenish- white. Berry crimson. 2. MELOTHEIA, L. Flowers polygamous or monoecious. Calyx of the fertile flower narrowed above the ovary ; the sterile ones campanulate. Petals 5, united into a campanu- SURIANACE^. - (SURIANA FAMILY.) 149 late corolla. Stamens 5, triaclclphous : anthers tortuous, connate, at length sep- arate Style single, with a cup-shaped disk surrounding its base. Stigmas 3. Fruit oval, smooth, many-seeded. 1. M. pendula, L. Stem filiform, smooth; leaves rough, cordate, with 3-5 angular-toothed lobes ; sterile flowers in small racemes ; the fertile solitary, on long peduncles; fruit oval, blackish, drooping. — Light soil, Florida to North Carolina, and westward. May - August. — Flowers small, yellow. • 3. SICYOS, L. Flowers monoecious. Calyx flattish, with 5 subulate or minute teeth. Petals 5, united below into a rotate corolla. Stamens 5, monadelphous or triadelphous. Ovary 1-celled, 1-ovuled. Style slender. Stigmas 3. Fruit membranaceous, bristly, 1-seedcd. — Annual herbs. Sterile and fertile flowers mostly from the same axil. 1 . S. anglllatus, L. Plant hairy and clammy ; leaves thin, cordate, with 3-5 acuminate denticulate lobes ; sterile flowers racemose ; the fertile ones in peduncled clusters, whitish. — River-banks, Florida, and northward. June- August. ORDER C2. SURIANACE^. (SURIANA FAMILY.) A downy shrub, with alternate crowded exstipulate leaves, and perfect yellow flowers, in small axillary bracted racemes. — Calyx 5-parted, per- sistent ; the base filled with a fleshy torus, which bears the ovaries, petals, and stamens. Petals 5, oblong-obovate. Stamens 10, hairy, the alternate ones short and sterile. Ovaries 5, distinct, with 2 erect collateral ortho- tropous ovules in each. Styles 5, each arising from the central angle of the ovary near the base, thickened upwards. Carpels 1-seeded, indehis- cent. Seeds without albumen. Embryo hooked. 1. SURIANA, Plum. Character same as the order. 1. S. maritima, L. — Sea-shore, South Florida. — Shrub 4° -6° high. Leaves linear-spatulate, fleshy, imbricated near the summit of the branches. Racemes shorter than the leaves. ORDER 63. CRASSULACEJE. (ORPINE FAMILY.) Succulent herbs, with exstipulate leaves, and regular perfect and mostly cymose flowers. Sepals 3 - 20, more or less united at the base, persistent. Petals as many as the sepals, inserted on the base of the calyx, imbricated in the bud, rarely wanting. Stamens as many, or twice as many, inserted 13* 150 CRASSULACE^E. (ORPINE FAMILY.) with the petals. Ovaries as many as the sepals, separate or united below. Carpels several-seeded, opening along the inner suture. Seeds anatropous. Embryo straight, in thin albumen. Synopsis. 1. SEDUM. Carpels distinct. Sepals 4-5. Stamens 8 or 10. 2. DIAMORPIIA. Carpels united at the base. Sepals 4. Stamens 8. 3. PENTHORUM. Carpels united above the middle. Sepals 5. Stamens 10. 1. SEDUM, L. ORPINE. STONE-CROP. Sepals 4 -5. Stamens 8 or 10. Carpels distinct, many-seeded, with an en- tire scale at the base of each. — Herbs smooth and fleshy. 1. S. telephioides, Michx. Stem stout, erect or ascending, very leafy throughout ; leaves alternate, oblong-obovate, toothed or entire ; the lower ones mostly tapering into a petiole, the upper sessile ; cymes compact, erect, many- flowered; petals flesh-color, ovate-lanceolate, acuminate; stamens 10; carpels acuminate, pointed with the slender style. — Dry rocks, along the mountains, Georgia, and northward. June. — Stem 7' - 1 2' high. Leaves 1 ' - 1 £' long. 2. S. ternatum, Michx. Stems low (3' - 8'), branching at the base, ascend- ing ; lowest leaves crowded, spatulate or obovate, 3 in a whorl ; the upper ones scattered, oval or lanceolate ; cyme composed of 3 recurved branches ; stamens 8, those of the central flowers 10. — Mountain-rocks, Georgia, Tennessee, and northward. May and June. 1J. — Flowers white. 3. S. pulchellum, Michx. Stems ascending (4' -12' long) ; leaves very numerous, alternate, linear, obtuse; cyme composed of several recurved or spreading branches ; flowers pale purple ; sepals much shorter than the petals ; stamens 8, those of the central flowers mostly 10; carpels tapering into the long and slender style. — With the preceding. May and June. 4. S. Nevii, Gray. Stems low (3' -5'), ascending; leaves alternate, scat- tered, linear-clavate, obtuse ; flowers sessile, scattered along the widely spread- ing or recurved branches of the simple cyme ; bracts linear, longer than the flowers ; sepals linear-lanceolate, acutish, as long as the lanceolate white petals ; stamens 8, shorter than the petals ; anthers purplish-brown ; carpels tapering into the short subulate style. — Rocky cliffs at Tuscaloosa, Alabama, ~Eev. R. D. Nevius. April and May. 2. DIAMOKPHA, Nutt. Sepals 4, very short. Petals 4, oval, concave. Stamens 8. Carpels 4, united below the middle, at length spreading, 4-8-seeded. — A small (l'-4') succu- lent biennial herb, branching from the base. Leaves terete, fleshy. Flowers white. 1. D. pusilla, Nutt. — On flat rocks in the upper districts, Alabama to North Carolina. March and April. SAXIFRAGACEJS. (SAXIFRAGE FAMILY.) 151 3. PENTHORUM, Gronov. Sepals 5. Petals 5, often wanting. Stamens 10. Carpels 5, united into a 5-celled capsule, spreading at the summit, which falls away at maturity. Seeds numerous. — Perennial (not fleshy) herbs, with alternate serrate leaves, and yellowish flowers on one side of the revolute branches of the simple cyme. 1. P. sedoides, L. Stem erect, l°-2° high; leaves lanceolate; petals commonly none. — Ditches and muddy places, common. July - Sept. ORDER 64. SAXIFRAGACE^E. (SAXIFRAGE FAMILY.) Calyx of 4 - 5 more or less united sepals, free, or more or less adherent to the ovary, persistent. Petals as many as the sepals, rarely wanting. Stamens as many, or 2 - 4 times as many, inserted with the petals on the calyx. Ovaries 2 or sometimes 3-4, commonly united below, and sepa- rate at the summit. Seeds few - many. Embryo straight, in the axis of fleshy albumen. Synopsis* SUBORDER I. SAXIFRAGES. Herbs. Petals Imbricated in the bud. Stipules adnate to the petiole, or none. * Stamens as many as the sepals. 1. LEPUROPETALON. Styles 3. Capsule l-celled, beakless. 2. HEUCIIERA. Styles 2. Capsule l-celled, 2-beaked. 3. BOYKINIA. Styles 2. Capsule 2-celled, 2-beaked. * * Stamens twice as many as the sepals. i- Capsule 2-celled. 4. SAXIFRAGA. Flowers perfect. Stamens 10. Leaves entire or lobed. 5. ASTILBE. Flowers polygamous. Stamens 10. Leaves ternately compound. i- -t- Capsule 1 celled. 6. TIARELLA. Stamens 10. Petals 5, entire. 7. MITELLA. Stamens 10. Petals 5, pinnatifid. 8. CHRYSOSPLENIUM. Stamens 8 -10. Petals none. SUBORDER II. ESCALLONIEzE. Shrubs. Petals valvate in the bud. Stipules none. Leaves alternate. • 9. ITEA. Stamens and petals 5- Flowers in a dense raceme. SUBORDER IH. HYDRANGIE^E. Shrubs. Petals valvate or con- volute in the bud. Leaves opposite. Stipules none. 10. HYDRANGEA. Petals valvate. Stamens 8 - 10. Styles distinct. 11. DECUMARIA. Petals valvate. Stamens 20 or more. Styles united. 12. PHILADELPHUS. Petals convolute. Stamens 20 or more. Styles 4. Capsule 4-valved. 1. LEPUROPETALON, Ell. Calyx-tube turbinate, cohering with the lower portion of the ovary, 5-parted. Petals 5, minute, spatulate. Stamens 5, very short. Styles 3. Capsule globu- 152 SAXIFRAGACEJE. (SAXIFRAGE FAMILY.) lar, 1 -celled, with 3 parietal placentas, many-seeded, loculicidally 3-valved at the apex. — A very small (£' high) tufted annual herb, with alternate spatulate leaves, and solitary terminal white flowers. 1. L. spatkulatum, Ell. — Close damp soil, Georgia (near Savannah) and South Carolina. March and April. 2. HEUCHERA, L. ALUM-ROOT. Calyx campanulate, coherent with the base of the ovary, 5-cleft. Petals 5, spatulate. Stamens 5. Styles 2. Capsule 1 -celled, with 2 parietal placentae, many-seeded, 2-beakcd, opening between the beaks. Seeds rough or hispid. — Perennial herbs, with erect scape-like stems. Leaves chiefly radical, long-peti- oled. roundish cordate, lobed or toothed. Stipules adnate to the petioles. Flow- el's cymose-panicled. * Calyx equal-sided. 1. H. Americana, L. Rough-pubescent ; scape leafless ; leaves crenately or acutely 7 - 9-lobed and toothed, the teeth mucronate ; panicles long, narrow, loosely-flowered ; calyx as long as the white spatulate petals, much shorter than the stamens and very slender styles. — Shady rocky places in the middle and upper districts, Mississippi to North Carolina, and northward. April and May. — Scape 2° -3° high, sometimes with one or two leaves. Leaves 2' -4' wide, on petioles 4' -12' long. 2. H. villosa, Michx. Scape bracted or somewhat leafy, and, like the petioles and lower surface of the leaves, shaggy with long spreading rusty hairs ; leaves sharply 5 - 7-lobed and toothed , panicle loose ; flowers minute ; petals white, very narrow, about as long as the stamens; styles elongated. (H. caulcs- cens, Pursh.) — Mountains of North Carolina and Tennessee. June and July. — Scape 1° - 3° high. Leaves 3' - 8' wide. Flowers about a line in length. 3. H. Curtisii, Gray. Scape and petioles smooth; leaves slightly lobed ; branches of the panicle long, racemose, spreading ; petals purple ? spatulate- lanceolatc, scarcely longer than the calyx ; stamens slightly pubescent. (H. caulescens, /3, Torr. fr Gray.) —Buncombe County, North Carolina, Curtis. — Flowers larger than the last. * * Calyx oldique. 4. H. pubescens, Purlh. Glandular-puberulent; stem (2°) leafy ; leaves round-cordate, acutely 5 - 7-lobed and toothed, with the sinus clqsed ; stipules obtuse, fringed ; flowers nodding ; calyx ovoid, yellowish -green, the ovate lobes obtuse ; petals spatulate, white, and, like the smooth stamens and styles, includ- ed.— Mountains of North Carolina, and northward. June and July. 5. H. hispida, Pursh. Hirsute or minutely glandular-pubescent; leaves 5 -9-lobed, the lobes short, rounded, and mucronately toothed; panicle con- tracted ; the short branches few-flowered ; petals broadly spatulate, purple, rather shorten than the more or less exserted stamens ; styles at length much exserted. — High mountains of North Carolina. May and June. — Scape 2° - 3° high, sometimes smoothish, as well as the t>etioles. Flowers larger than any of the preceding. SAXIFRAGACEJS. (SAXIFRAGE FAMILY.) 153 3. BOYKINIA, Nutt. Calyx turbinatc, coherent with the ovary, 5-cleft. Petals deciduous. Sta- mens 5, short. Styles 2-3. Capsule 2-3-celled, with a central many-seeded placenta, 2-bcaked, opening between the beaks. Seeds smooth. — Erect leafy perennial herbs, with alternate round-cordate palmately lobed and toothed leaves, and small flowers in corymbose cymes. 1. B. aconitifolia, Nutt. Glandular-hairy, or the upper surface of the long-petioled 5 - 7-lobed leaves smoothish ; cymes fastigiate, clammy ; flowers secund, white ; teeth of the calyx triangular-ovate. — Mountains of Georgia, North Carolina, and Tennessee. June and July. — Stem l°-2° high. 4. SAXIPRAGA, L. SAXIFRAGE. Calyx free, or cohering with the base of the ovary, deeply 5-cleft. Petals 5, commonly deciduous. Stamens 10. Styles 2. Capsule 2-cellcd, 2-beaked, opening between the beaks. Seeds numerous, smooth. — Lowest leaves clus- tered. * Stems leafy. 1. S. leucanthemifolia, Michx. Hairy and clammy ; leaves spatulate, coarsely toothed, tapering into a long winged petiole ; the upper ones linear ; panicle diffuse ; petals clawed, unequal, white, the 3 larger ones spotted with yellow. — Mountains of North Carolina. July. — Stem 10' -20' high. * * Stems naked, scape-like. 2. S. erosa, Pursh. Leaves oblong, tapering to the base, sharply toothed ; scape clammy-pubescent ; panicle long, slender, loosely flowered ; sepals reflcxed, nearly as long as the oval white petals ; stigmas sessile. — Shady banks of streams on the mountains of North Carolina, and northward. July. — Scape 1° - 3° high. Leaves 8'- 12' long. 3. S. Virginiensis, Michx. Pubescent ; leaves somewhat fleshy, obo- vate, crenately toothed ; scape clammy ; panicle cymose, dense-flowered ; sepals erect, not half as long as the oblong obtuse white petals ; styles short. — Rocks on the mountains of Georgia, and northward. April end May. — Scape 4' - 12' high. 4. S. Careyana, Gray. Smooth or pubescent ; leaves broadly ovate, cre- nately or sharply toothed, abruptly contracted into a slender petiole ; scape slen- der ; panicle loosely flowered ; sepals spreading, half as long as the lanceolate- oblong, white, faintly spotted petals ; filaments filiform. — Moist shady rocks, on the high mountains of North Carolina. June. — Plant 6' high. 5. S. Caroliniana, Gray. Glandular-pubescent ; leaves all radical, del- toid or ovate, coarsely toothed, abruptly contracted into a margined petiole ; bracts of the scape few ; panicle diffuse ; petals ovate, white, with 2 pale spots below the middle, twice the length of the reflexed sepals ; filaments club-shaped ; carpels turgid, free from the calyx, at length widely spreading. — Damp shady places on the mountains of North Carolina. May and June. — Scape 6' - 12' high. 154 SAXIFRAGACE^E. (SAXIFRAGE FAMILY.) 5. ASTILBE, Hamilton. Flowers polygamo-dioecious. Calyx campanulate, 5-parted, nearly free from the ovary. Petals 5, spatulate, withering-persistent. Stamens 10, exscrted. Styles 2. Capsule 2-celled, few-seeded. Seed-coat loose and thin. — Perennial herbs, with ternately compound leaves, and small yellowish-white flowers, in panicled racemes. 1. A. decandra, Don. — Banks of streams among the mountains of Georgia and North Carolina. June -August. — Stem 3° -5° high. Leaves twice or thrice ternately compound ; the leaflets mostly cordate-ovate, sharply lobed and toothed. Stigmas of the sterile flowers and the stamens and petals of the fertile ones smaller or rudimentary. 6. TIARELLA, L. FALSE MITRE-WORT. Calyx campanulate, nearly free from the ovary, 5-parted. Petals 5, entire. Stamens 10. Styles 2. Capsule membranaceous, 2-valved, the valves very un- equal, 1 -celled, few-seeded. Seeds globular, smooth. — Perennial herbs, with scape-like stems, chiefly radical and petioled leaves, and small racemose flowers. 1. T. COrdifolia, L. Leaves round-cordate, crenately or acutely lobed and toothed, hairy above, pubescent beneath, on long hairy petioles ; scape (6'- 12' high) naked, or bearing 1-2 alternate leaves above the middle; racemes simple or branched, many-flowered ; petals oblong, white or purplish. — Eocky woods and banks, Mississippi, and northward along the mountains. April and May. 7. MITELLA, Tourn. MITRE-WORT. Calyx coherent with the base of the ovary, 5-cleft. Petals 5, pinnatifid. Sta- mens 10. Styles 2. Capsule 2-beaked, 1 -celled, 2-valved at the apex, many- seeded. Seeds smooth, borne on two parietal placentae. — Perennial herbs, with broadly cordate and lobed leaves, and small flowers in a terminal raceme. 1. M. diphylla, L. ' Hairy ; radical leaves cordate, acute, coarsely ser- rate and slightly 3-lobed, on long petioles ; stem-leaves 2, opposite, sessile ; raceme slender, loosely many-flowered. — Shady woods, on the mountains of North Carolina, and northward. May. — Stem 6' - 12' high. Flowers white. 8. CHBYSOSPLENIUM, Tourn. GOLDEN SAXIFRAGE. Calyx-tube coherent with the ovary, 4 - 5-lobed ; the lobes obtuse and yellow within. Petals none. Stamens 8-10, very short, inserted on ,a conspicuous disk. Styles 2. Capsule very short, 2-lobed, 1 -celled, with 2 parietal placentae, 2-valved at the apex, many-seeded. — Smooth and succulent herbs, with round- ish leaves, and axillary flowers. 1. C. Americanum, Schweinitz. Stems prostrate, forking; leaves mostly opposite, roundish, slightly lobed ; flowers solitary, greenish. — Cold and shady SAXIFRAGACE^E. (SAXIFRAGE FAMILY.) 155 streams, among the mountains, Georgia, and northward. April and May. 1J. — Stems 4' - 6' long. 9. ITEA, L. Calyx campanulate, 5-cleft, free from the ovary. Petals 5, lanceolate. Sta- mens 5, shorter than the petals. Styles 2, united. Capsule 2-celled, 2-furrowed, septicidally 2-valved, several-seeded. — A shrub with simple oblong or oval ser- rate pubescent leaves, and close mostly drooping racemes of white fragrant flow- ers terminating the branches. 1. I. Virginica, L. — Swamps, Florida to Mississippi, and northward. May and June. — Shrub 4° - 10° high. 10. HYDRANGEA, Gronov. Calyx-tube hemispherical, 8-10-ribbed, coherent with the ovary; the limb 4-5-toothed, persistent. Petals ovate, valvate in the bud. Stamens 8-10, fili- form. Capsule crowned with the 2 diverging styles, 2-celled, many-seeded, open- ing at the apex between the styles. — Erect shrubs, with opposite petiolcd leaves, without stipules, and whitish or purplish flowers, in ample compound cymes ; the marginal flowers mostly sterile, with the calyx-lobes enlarged and showy. 1. H. arborescens, L. Smoothish; leaves ovate, acute or acuminate, serrate, mostly rounded or cordate at the base; cymes crowded, flat-topped; sterile flowers few or none. (H. vulgaris, Michx. H. cordata, Pursh.) —Banks of streams, Florida to Mississippi, and northward. June and July. — Shrub 4° - 8° high. Leaves 3' - 6' long. 2. H. radiata, Walt. Leaves ovate, acuminate, serrate, mostly cordate at the base, white-tomentose beneath; cymes flat-topped; sterile flowers few. — Rich soil, Georgia, Carolina, and Tennessee. May and June. — Shrub 4° -8° high. 3. H. quercifolia, Bartram. Young branches and leaves densely to- mentose ; leaves oval, sharply 5-lobed, serrate ; cymes clustered, forming a close oblong panicle ; sterile flowers large, numerous. — Shady banks, Florida, Geor- gia, and westward. May and June. — Shrub 3° - 6° high. Leaves 4' - 8' long. Sterile flowers whitish, turning purple. 11. DECUMARIA, L. Flowers all fertile. Calyx-tube turbinate, coherent with the ovary, 7-10- toothed. Petals valvate in the bud, oblong. Stamens 21 - 30. Styles united, persistent. Stigma thick, 7-10-rayed. Capsule 10-15-ribbed, 7-10-celled, bursting at the sides ; the thin partitions at length separating obliquely into nu- merous chaffy scales. Seeds numerous, suspended. — A smooth climbing shrub, with opposite ovate or oblong entire or serrate leaves, and numerous odor- ous white flowers in compound terminal cymes. » 1. D. barbara, L. — Banks of streams, Florida to North Carolina, and westward. May and June. — Leaves shining, sometimes pubescent. Capsule, with the persistent style and stigma, urn-shaped, pendulous. 156 HAMAMELACE.E. (WITCH-HAZEL FAMILY.) 12. PHILADELPHUS, L. SYRINGA. Calyx-tube turbinate, cohering with the ovary , the limb 4 - 5-parted, persist- ent. Petals 4-5, convolute in the bud. Stamens 20-40, shorter than the petals. Styles mostly 4, more or less united. Capsule mostly 4-celled, loculi- cidally 4-valved, many-seeded. — Shrubs with simple opposite 3 - 5-ribbed leaves, without stipules, and large white solitary or cymose flowers. 1. P. grandiflorus, Willd. Branches and leaves pubescent; leaves ovate or ovate-oblong, acuminate, sharply serrate ; flowers solitary, or 2 or more in a terminal cyme ; calyx-lobes ovate, acuminate, much longer than the tube.— Banks of streams, Florida to North Carolina. April and May. — Shrub 6° - 10° high, with long and slender branches. 2. P. inodorus, L. Smooth ; leaves entire or nearly so, ovate or ovate- oblong, acute ; calyx-lobes ovate, acute, as long as the tube. — Upper districts of Alabama to South Carolina. May. — Flowers smaller than in the last. 3. P. hirsutus, Nutt. Hairy ; leaves small, ovate, acute, sharply serrate ; flowers 1-3 together, terminal, and on short lateral branches ; calyx-lobes ovate, as long as the tube. — North Carolina and Tennessee, — A small shrub. Leaves 1' lon. Flowers ' wide. ORDER 65. HAMAMELACEJG. (WITCH-HAZEL FAMILY.) Trees or shrubs, with Alternate leaves, deciduous stipules, and clustered or spiked, often polygamous or monoecious flowers. — Calyx-tube coherent with the base of the ovary. Petals 4-5, long and linear, or none. Sta- mens twice as many as the petals, with the alternate ones sterile, or nu- merous and perfect. Styles 2. Capsule woody, 2-celled, opening at the summit. Seeds anatropous, bony, 1 - 2 in each cell. Embryo large and straight, in scarce albumen. Synopsis. 1. HAMAMELIS. Calyx-lobes and petals 4. Fertile stamens 4. Ovules solitary in each cell, suspended. 2. FOTIIERGILLA. Calyx 5-7-toothed. Petals none. Stamens numerous, all fertile. Ovules solitary, suspended. 3. LIQUIDAMBAR. Calyx and corolla none. Flowers polygamous or monoecious, capitate. Stamens numerous. Ovules several. 1. HAMAMELIS, L. WITCH-HAZEL. Calyx 2-3-bracted, 4-parted. Petals 4, long and linear. Stamens 8, the alternate ones short and sterile. Styles 2. Capsule loculicidally 2-valved at the apex, the outer coat separating from the inner one, which encloses the seed, but soon splits elastically into 2 valves. Seeds large, bony. — Shrubs. Leaves short-petioled. Flowers yellow, clustered. UMBELLIFER^E. (PARSLEY FAMILY.) 157 1. H. Virginica, L. — Low woods, Florida to Mississippi, and northward. November. — A large shrub. Leaves obovate or oval, oblique, crenate-toothed, pubescent ; flowers appearing when the leaves are falling. 2. FOTHERGILLA, L. Calyx truncate, obscurely 5-7-toothed. Petals none. Stamens numerous, slender, perfect. Styles 2. Capsule 2-lobed, 2-celled, 2-valved at the apex, with a single bony seed in each cell. — A shrub, with oval or obovate leaves, and white odorous flowers in terminal bracted spikes, appearing before the leaves. 1 F. alnifolia, L. — Swamps, Florida to North Carolina. March and April. — Shrub 2° -4° high. Leaves smooth, or tomentose beneath, toothed at the summit. Capsule hairy. 3. LIQUIDAMBAR, L. SWEET-GUM. Flowers monoecious, in globular 4-bracted spiked heads. Calyx and corolla none. Stamens very numerous. Styles 2. Ovary 2-celled, with numerous ovules in each cell. Capsules united in a close head, woody, 2-beaked, opening between the beaks, 1 -2-seeded. Seeds wing-angled. — Trees. Heads of sterile flowers sessile, crowded ; those of the fertile flowers on long nodding peduncles. 1. L. Styraciflua, L. Branches with corky wings ; leaves roundish, with 5-7 acuminate serrate spreading lobes. — Swamps, Florida to Mississippi, and northward. March. — A large tree. The exposed juice hardens into a fragrant gum. ORDER ' 66. UMBELLJFEItflE. (PARSLEY FAMILY.) Herbs, with, chiefly hollow and furrowed stems, alternate mostly com- pound leaves, with dilated or clasping petioles, and umbelled flowers. — Calyx-tube coherent with the ovary ; the limb 5-lobed or obsolete. Petals 5, mostly incurved, inserted with the 5 stamens on the edge of the disk that crowns the ovary. Styles 2. Fruit composed of 2 indehiscent car- pels (mericarps), suspended from a filiform axis (carpophore) , and cohering by their inner face (commissure) ; each furnished with 5 primary ribs, and often with as many secondary ones ; the intervening spaces (intervals) usually containing channels (vittce), which are filled with aromatic oil. Seed solitary, suspended. Embryo minute, at the base of horny albu- men. : — Umbels and partial umbels (umbelleis) commonly subtended by an involucre or involucel. Synopsis. § 1. Inner face of the seed flat, or nearly so. * Umbels simple, or one growing from the summit of another. Stems creeping. 1. IIYDROCOTYLE. Fruit orbicular, flattened. Leaves rounded. 2. CRANTZIA. Fruit globular. Leaves linear, fleshy. 14 158 UMBELLIFER^E. (PARSLEY FAMILY.) * * Umbels capitate (flower sessile). 3. SANICULA. Fruit bristly, globular. Flowers polygamous. Involucel none. 4. ERYNGIUM. Fruit scaly, turbinate. Flowers perfect, bracted. Heads involucelled. # # # Umbels compound (flowers pedicelled). •*- Fruit with bristly ribs ; the bristles in a single row. 5. DAUCUS. Fruit 9-ribbed. Leaves finely 2-3-pinnate. •i- -i- Fruit smooth or slightly roughened. ++ Fruit wingless, laterally compressed, or twin. 6. CTCUTA. Flowers white. Fruit subglobose. Calyx-limb 5-toothed. 7. CRYPTOTuENIA. Flowers white. Fruit oblong. Calyx-limb obsolete. Divisions of the leaves lanceolate. 8. LEPTOCAULIS. Flowers white. Fruit ovate, rough. Calyx-limb obsolete. Divisions of the leaves filiform. 9. DISCO PLEURA. Flowers white. Fruit ovoid. Calyx-limb 5-toothed. Divisions of the leaves filiform. 10. HELOSCIADIUM. Flowers white. Fruit oblong. Calyx-limb obsolete. Involucre 1 - 3- leaved, or none. 11. SIUM. Flowers white. Fruit globose. Calyx-teeth minute or none. Involucre 5-6- leaved. Leaves pinnate. 12. BUPLEURUM. Flowers yellow. Fruit ovoid-oblong. Leaves simple. 13. ZIZIA. Flowers yellow. Fruit ovoid-oblong ; the intervals with 3 vittae. 14. THASPIUM. Flowers yellow or dark purple. Fruit ovoid or oblong ; the intervals with single vittae. 15. LIGUSTICUM. Flowers white. Fruit elliptical, with several vittae in each interval. •H- -H- Fruit dorsally compressed, winged on the margins. = Margins of the fruit double-winged. Flowers white. Leaves pinnately compound. 16. ANGELICA. Carpels 3-ribbed on the back ; the intervals with single vittae. 17. ARCIIANGELICA. Carpels 3-ribbed on the back ; the intervals with 2 or more vittae. 18. CONIOSELINUM. Carpels 3-winged on the back ; the intervals with 2-3 vittae. = = Margins of the fruit single-winged. 19. TIEDEMANNIA. Fruit broadly winged. Marginal wings remote from the 3 dorsal ones. Leaves simple, terete. 20. ARCHEMORA. Fruit as in No. 19. Leaves pinnate or ternate. 21. HERACLEUM. Fruit with all the ribs equidistant. Marginal flowers sterile. Plant woolly. § 2. Inner face of the seed concave. 22. CH^IROPIIYLLUM. Fruit linear-oblong, narrowed towards the apex. 23. OSMORRHIZA. Fruit linear-clavate, narrowed towards the base. 1. HYDROCOTYLE, Tourn. MARSH PENNYWORT. Calyx-teeth obsolete. Petals not incurved. Fruit laterally compressed, or- bicular. Carpels 5-ribbed, the dorsal and lateral ones often obsolete, the inter- mediate ones enlarged. Vittce none. — Low marsh herbs, with slender creep- ing stems, and peltate or reniform leaves. Umbels small, axillary. Flowers white. 1. H. Americana, L. Smooth; leaves orbicular-rem'form, crenately 7- lobed ; umbels sessile, 3 - 5-flowered ; fruit 2-ribbed. — Mountains of North Carolina, and northward. July. — Stems stoloniterous. Leaves very thin, UMBELLIFEILE. (PARSLEY FAMILY.) 159 2. H. umbellata, L. Smooth ; leaves orbicular, peltate, obscurely lobcd, crenatc ; umbels globose, on peduncles commonly longer than the petioles ; fruit 2-ribbed on each side. — Wet places, Florida to Mississippi, and northward. May. — Leaves 1' wide. 3. H. ranunculoides, L. Smooth ; leaves orbicular-reniform, crenately 3 - 5-lobed ; umbels few-flowered, on peduncles much shorter than the petioles, mostly nodding in fruit ; fruit obscurely ribbed. — Springs and muddy places, Florida to North Carolina, and westward. May and June. — Petioles 6' -12' long. Peduncles 1' long. 4. H. interrupta, Muhl. Smooth; leaves orbicular, peltate, crenate; umbels proliferous, the nearly sessile clusters forming an interrupted spike ; fruit strongly ribbed. — "Wet places, Florida to Mississippi, and northward. June. — Petioles longer than the peduncles. 5. H. repanda, Pers. Pubescent; leaves broadly ovate, truncate or slightly cordate at the base, glandular-serrate; umbels capitate, few-flowered, shorter than the petioles ; fruit strongly ribbed. — Low grounds, Florida to North Carolina, and westward. July. 2. CBATTTZIA, Nutt. Calyx-teeth obsolete. Petals roundish. Fruit globular. Carpels 5-ribbed, the lateral ribs thickened and corky. Vittae single in the intervals, with 2 on the commissure. — Small creeping marsh herbs, with fleshy linear leaves, and small whitish flowers in axillary umbels. 1. C. lineata, Nutt. (Hydrocotyle lineata, Michx.) — Muddy banks, near the coast, Florida to Mississippi, and northward. July. — Leaves 1' long, with cross partitions, narrowed towards the base, obtuse. Involucre 5 - 6-leaved. 3. SANICULA, Tourn. Calyx 5-toothed, persistent. Fruit globose, without ribs, armed with hooked prickles ; the carpels not separating spontaneously, each with 5 vittse. — Peren- nial erect branching herbs, with palmately-divided long-petioled leaves, and polygamous flowers in small heads, disposed in a loose expanding cyme. 1. S. Marilandica, L. Leaves 5-7-parted, the divisions lobed and toothed; heads many-flowered; sterile flowers numerous on slender pedicels; styles long, recurved. — Dry woods, Georgia, and northward. May. — Stem 2° -3° high. 2. S. Canadensis, L. Leaves 3 - 5-parted, the divisions lobed and toothed ; heads few-flowered; the sterile flowers (1-3) nearly sessile; styles short and straight. — Dry woods, common. May. — Stem 1 ° - 2° high. Branches of the cyme long and spreading. 4. ERYNGIUM, Tourn. BUTTON-SNAKEROOT. Calyx 5-toothed, persistent. Styles slender. Fruit turbinate, covered with scales or tubercles, without ribs or vittse. — Herbs, with spiny or bristly mostly 160 UMBELLIFER^. (PARSLEY FAMILY.) lobed or toothed leaves, and white or blue bracted flowers closely sessile in dense heads. * Fruit scaly : stems erect. 1. E. yUGCSJfolium, Michx. Leaves linear, concave, bristly or some- what spiny on .the margins, parallel-veined; leaves of the involucre mostly entire, shorter than the broadly ovate head ; bracts entire. — Pine barrens, most- ly in damp soil, Florida, and northward. June. 1J. — Stem 2° -3° high. Leaves distant, the lowest ones 1° - 1 J° long. Flowers white. 2. E. Ravenelii, Gray. Leaves linear, elongated, nearly terete, grooved on the upper surface, obscurely denticulate ; leaves of the involucre 3-cleft, as long as the head ; bracts 3-cleft, spine-pointed, longer than the flowers. — Low pine barrens, near the head-waters of Cooper river, South Carolina. Raveml. Sept. and Oct. — Stem l£° - 3° high. Flowers white. 3. E. Virginianum, Lam. Leaves linear-lanceolate, flat; the lowest ones spiny-serrate with the teeth incurved, or nearly entire, veiny; the upper narrower, spiny or pinnatifid; leaves of the involucre (blue) 3-5-cleft, longer than the head; bracts 3-cleft, as long as the flowers. — Marshes, Florida to Mississippi, and northward. July. 1J. or (2) — Stem 2° - 3° high. Flowers blue. 4. E. prsealtum, Gray. Leaves lanceolate, flat, veiny, serrate; the up- per ones linear, spiny-toothed; leaves of the involucre 2-3 times as long as the head ; bracts tricuspidate, barely as long as the mature calyx. (E. Virginia- num, Ell.} — Fresh marshes near the coast, Georgia to North Carolina. August. — Stem 4° -6° high. Lowest leaves l°-2° long and 2^-3' wide. Flowers white. 5. E. Virgatum, Lam. Leaves short, oblong or oblong-ovate, serrate, the upper ones toothed or divided ; leaves of the involucre entire, or with 2-4 bristly teeth, longer than the head; bracts 3-toothed. (E. ovalifolium, Michx.) — Pine-barren swamps, Florida to North Carolina, and westward. August. — Stem l°-2° long. Leaves 2' -3' long, sometimes cordate. Flowers blue. * * Fruit granular : stems diffuse. 6. E. aromaticurn, Bald\v. Stems clustered, prostrate, very leafy; leaves spatulate, pinnately lobed, cartilaginous on the margins ; the 3 upper lobes broad and spine-pointed, the lower ones scattered and bristle-like ; leaves of the involucre 3-cleft, longer than the globose head ; bracts 3-toothed. — Dry pine barrens, East and South Florida. Sept. — Stems 1' long. 7. E. Baldwin!!, Spreng. Small, prostrate, branching ; leaves thin ; the earliest ones ovate, sharply serrate or toothed, long-petioled, the others 3-parted, with the middle segment lanceolate and commonly 3-toothed ; leaves of the in- volucre subulate, longer or shorter than the oblong head ; bracts spatulate, ob- tuse, barely exceeding the calyx. — Low sandy pine barrens, Georgia, Florida, and westward. September. Q) ? — Stems 5'- 10' long. Flowers blue. 8. E. Cervantes!!, Laroch. Stems prostrate, diffusely branched; earli- est leaves lanceolate or oblong, entire, or sparingly toothed, long-petioled, the others sessile, 3-parted, with the segments linear or filiform and entire ; leaves UMBELLIFER^E. (PARSLEY FAMILY.) 161 of the involucre subulate, as long as the hemispherical head ; bracts subulate acute, twice as long as the calyx. (E. filiforme, S/iuttl) — Damp sandy soil along the coast of West Florida. July and August. (2) — Stems l°-2° long. Leaves somewhat fleshy. Flowers very small, blue. 5. DAUCUS, Tourn. CARROT. Calyx 5-toothed. Corolla irregular. Fruit ovate or oblong ; the carpels with 9 unequal bristly or prickly ribs, and a single vitta under the larger ribs. — An- nual or biennial herbs, with pinnately finely dissected leaves and involucre, and white or yellowish flowers. 1. D. pusillus, Michx. Annual; stem rough with rigid reflexed hairs; leaves twice pinnate, with the divisions linear ; bristles of the fruit barbed. — Dry sterile soil, Florida to South Carolina, and westward. June. — Stem 1° -3° high. Umbels long-peduncled. 6. CICUTA, L. WATER-HEMLOCK. Calyx 5-toothed. Fruit roundish. Carpels with 5 flattislrcqual ribs ; the in- tervals with single vittse, and 2 on the inner face. — Smooth perennial marsh herbs, with hollow stems, and twice pinnately or ternately divided leaves. Invo- lucels many-leaved. Flowers white. 1. C. maculata, L. Stem large (3° -6° high), purplish ; leaflets ovate- lanceolate, acute, coarsely serrate ; umbels large, many-rayed. — Marshes, Florida to Mississippi, and northward. July. — Plant very poisonous. 7. CRYPTOTJSNIA, DC. Calyx-teeth obsolete. Fruit oblong, contracted at the sides. Carpels equally 5-ribbed, with very slender single vitta} in each interval, and one under each rib. — A smooth perennial herb, with trifoliolate leaves on long petioles. Leaflets large, ovate, doubly serrate and mostly lobcd. Rays of the umbel few and very unequal. Involucre none. Involucels filiform. Flowers white. 1. C. Canadensis, DC. (Chaerophyllum Canadense, Pers.) — Rich shady soil, North Carolina to Mississippi, and northward. July. — Stem 2° high. 8. LEPTOCAULIS, Nutt. Calyx-teeth obsolete. Fruit ovate, compressed on the sides, often rough or bristly. Carpels 5-ribbed, the intervals with single vittse, and 2 on the face. — Slender smooth herbs, with finely dissected leaves, and white flowers. Umbels few-rayed. Involucre none. Involucel few-leaved. 1. L. divaricatus, DC. Annual; stem (6' -18' high) widely branched ; leaves 2-3-pinnatifid, with the divisions filiform; umbel 3-4-raycd. (Sison pusillum, Michx. ) — Dry sandy soil, Florida to North Carolina. April. — Fruit very small, roughened with minute scales. 14* 162 UMBELLIFERJE. (PARSLEY FAMILY.) 9. DISCOPLEUBA, DC. Calyx-teeth subulate, persistent. Fruit ovate ; the carpels strongly 3-ribbed on the back, and with two lateral ribs united with a thick corky margin. Inter- vals with single vittae. — Smooth annuals, growing in marshes. Leaves pin- nately dissected, with the filiform divisions often whorled. Involucre and invo- lucel conspicuous. Flowers white. 1. D. capillacea, DC. Umbels 3-10-rayed; leaves of the involucre mostly 3-5-clcft ; fruit ovate. (Ammi capillaceum, Michx.) — Brackish marsh- es, Florida to Mississippi, and northward. June and July. — Stem 1° -2° high, much branched. Earliest leaves simple, or simply pinnate. 2. D. COStata. Stem tall, branching above; leaves of the involucre 10- 12, many-parted ; fruit ovate, deeply sulcate. (Ammi costatum, Ell.) — Swamps of the Ogeechee Kiver, Georgia. October and November. — Stem 4° - 5° high. Fruit larger than in No. 1. 3. D. Nuttallii, DC. Umbels many-rayed ; leaves of the involucre 5 - 6, entire ; fruit globose. — Tampa Bay, Florida, and westward. — Stem 2° - 6° high. 10. HELOSCIADIUM, Koch. Calyx-teeth 5, or obsolete. Fruit ovate or oblong, flattened on the sides, the carpels equally 5-ribbed. Intervals with single vittse. Flowers white. 1. H. nodiflorum, Koch. Stems prostrate or creeping ; leaves pinnate; leaflets ovate-lanceolate, sen-ate ; umbqls short-peduncled, opposite the leaves ; involucre 1 - 2-leaved or none; involucel 5-6-leaved. (Sium nodiflorum, L.) — Ditches, &c. around Charleston. Introduced. April -June. — Stems 2° long. 11. SIUM, L. Calyx-teeth small or obsolete. Fruit ovate or globular, flattened at the sides ; the carpels with 5 equal corky ribs. Intervals usually with several vittse. — Marsh or aquatic perennial herbs. Leaves pinnate ; the immersed ones dissected into numerous capillary divisions. Involucre several-leaved. Flowers white. 1. S. lineare, Michx. Leaflets varying from linear to oblong, finely and sharply serrate ; calyx-teeth minute ; fruit globular, strongly ribbed. — Along streams, commonly in water, Florida to Mississippi, and northward. July. — Stem 2° high. 12. BUPLEURUM, Tourn. Calyx-teeth obsolete. Fruit flattened at the sides, or twin, ovate-oblong. Carpels 5-ribbed, the intervals with or without vittse. — Smooth herbs, with en- tire simple leaves, and yellow flowers. 1. B. rotundifolium, L. Leaves ovate, perfoliate ; umbel 5-rayed ; in- volucre none ; leaves of the involucel 5, ovate, mucronate. — Fields, North Caro- lina. — Introduced. UMBELLIFER^E. (PARSLEY FAMILY.) 163 13. ZIZIA, DC. Calyx-teeth obsolete. Fruit ovoid-oblong, twin. Carpels 5-ribbed, the cross section nearly orbicular. Vittae 3 in each interval, and 4 on the commissure. — A smooth perennial herb, with 2 - 3-ternately compound leaves, and yellow flowers. 1. Z. integerrima, DC. Stem slender; leaflets oblong-ovate, entire; rays of the umbel long and slender; involucre none. (Smyrnium integerrimum, L.) — Rocky woods, Mississippi, and northward. May and June. — Stem 1° - 2° high. 14. THASPIUM, Nutt. Calyx-teeth short or obsolete. Fruit ovoid or oblong, somewhat flattish at the sides. Carpels commonly equally and strongly 5-ribbed. Intervals with single vittse. — Perennial herbs, with 1 - 2-ternately-divided leaves (the lowest often en- tire), and yellow or purple flowers. Involucre none. * Calyx-teeth short, obtuse. 1. T. barbinode, Nutt Stem pubescent at the joints; leaves 1 - 2-ternate, more or less pubescent ; leaflets cuneate-ovate, entire toward the base, toothed above, the terminal one nan-owed into a long stalk ; fruit oblong, the ribs mostly unequal ; flowers pale yellow. — River-banks, West Florida, and northward. May and June. — Stem branching above, 2° -3° high. Leaflets £'-1' long, often 2-3-lobed. 2. T. pinnatifidum, Gray. Branches and umbels roughish-puberulent ; leaves 1-3-ternate; leaflets 1 - 2-pinnatifid, the lobes linear or oblong; fruit oblong, narrowly 8- 10-winged, the intervals minutely scabrous. — Mountains of North Carolina and Tennessee. — Stem 2° - 5° high. * * Calyx-teeth obsolete. 3. T. aureum, Nutt. Leaves 1 - 2-ternate ; the leaflets oblong-lanceolate, sharply serrate, the lateral ones unequal at the base ; fruit oval, the ribs thick or winged. (Smyrnium aureum, L.) — Rich soil, Florida, and northward. May. — Stem l°-2°high. Lowest leaves sometimes cordate and undivided. Flowers yellow. 4. T. trifoliatum, Gray. Leaves crenate; the lowest ones usually sim- ple and cordate, the others trifoliolate ; leaflets ovate-lanceolate, mostly obtuse at the base; fruit roundish, ribbed or winged. (Smyrnium cordatum, Walt. S. atropurpureum, Lam.) — Rich soil, Florida to Mississippi, and northward. June. — Stem 1° - 2° high. Flowers yellow or dark purple. 15. LIGUSTICUM, L. NONDO. Calyx-teeth minute or obsolete. Fruit elliptical, nearly terete. Carpels with 5 acute equal and somewhat winged ribs. Vittas numerous. Involucre short, 2 - 6-leaved. — Perennial herbs. Leaves 1 - 3-ternately divided. Flowers white. 1. L. actseifolium, Michx. Stem tall (3° -6°), smooth, branched; leaves 3-ternately divided ; leaflets ovate, toothed ; umbels very numerous, pani- 164 UMBELLIFER^E. (PARSLEY FAMILY.) cled ; fruit ovate-oblong, the ribs wing-like ; vittae 3 in each interval, and 6 on the commissure. — Rich soil, in the upper districts. July and August. — Root large, aromatic. 16. ANGELICA, L. Calyx-teeth obsolete. Fruit flattened. Carpels 5-ribbed, the 2 lateral ribs dilated into wings. Vittae single in each interval, and 2-4 on the commissure. Seed adherent to the pericarp. — Chiefly perennial herbs, with compound leaves, no involucre, and white flowers. 1. A. Curtisii, Buckley. Stem smooth; leaves twice ternate, or the di- visions quinate ; leaflets thin, ovate or ovate-lanceolate, often slightly cordate, sharply toothed ; fruit broadly winged ; commissure with 2 vittae. — High moun- tains of North Carolina. August. — Stem 3° high. Petioles large and sheath- ing. 17. ARCHANGELICA, Hoffm. Calyx-teeth short. Fruit flattened. Carpels ribbed as in Angelica. Vitta; very numerous, entirely surrounding the loose seed. — Perennial herbs. Leaves 1 - 2-ternate, with pinnate divisions. Leaflets toothed. Upper petioles inflated. Involucre none. Involucel many-leaved. Flowers white. 1 . A. llirsuta, Torr. & Gray. Upper part of the stem and umbels softly pubescent ; leaflets oblong-ovate, sharply serrate ; fruit pubescent. (A. tri- quinata, Ell. Ferula villosa, Walt.) — Dry hills, Florida to Tennessee, and northward. July. — Stem 2° - 3° high. 2. A. dentata, Chapm. Stem slender, smooth ; umbels slightly pubes- cent ; leaflets lanceolate, strongly veined, coarsely toothed ; fruit smooth. — Dry pine barrens, Florida. September. — Stem 2° - 3° high, branching above ; teeth of the small (§') leaflets spreading. 18. CONIOSELINUM, Fischer. Calyx-teeth obsolete. Fruit oval. Carpels somewhat flattened on the back, 5-winged, with the lateral wings twice as broad as the dorsal ones. Vittae 2-3 in each interval, and 4 - 8 on the commissure. — Smooth herbs. Leaves thin, finely 2 - 3-pinnately compound. Involucre none. Involuccls subulate. Flow- ers white. 1. C. Canadense, Torr. & Gray. Leaflets pinnatifid, with linear-oblong lobes, the petioles inflated ; rays of the umbel slender ; fruit broadly oval. — High mountains of North Carolina, and northward. August. — Stem 3° - 5° high. 19. TIEDEMANNIA, DC. Calyx 5-toothed. Fruit obovate, compressed. Carpels with 5 sharp and slender ribs, winged on the margins. Intervals with single vitta;, and 2 on the commissure. — A smooth erect perennial herb, with terete petioles destitute of leaflets. Involucre and involucel 5 - 6-leaved. Flowers white. TJMBELLIFER^E. (PARSLEY FAMILY.) 165 1. T. teretifolia, DC. (Sium teretifolium, Ell.)— Pine-barren swamps, Florida to North Carolina, and westward. August. — Stem 2° - 4° high. Peti- oles with cross partitions. 20. AKCHEMORA, DC. Calyx 5 -toothed. Fruit oval or obovate, flattened on the back. Carpels with 5 slender obtuse ribs, winged on the margins. Intervals with single vittae, and 4 - 6 on the commissure. — Smooth herbs, with pinnately-divided leaves, and white flowers. Involucre few-leaved or none. Involucel many-leaved. 1. A. rigida, DC. Leaves pinnate ; the leaflets (3-9) varying from lin- ear to oblong, variously toothed or entire. (Sium rigidus, tricuspidatum, and denticulatum, Ell.) — Swamps, Florida to Mississippi, and northward. August and September. — Stem 2° - 5° high. 2. A. ternata, Nutt. Leaves temate, with the leaflets linear, entire and strongly nerved ; the lowest ones on very long petioles. (Neurophyllum longi- folium, Torr. fr Gray.) — Low or swampy pine barrens, Florida to North Caro- lina. November. — Stem slender, 2° high. Petioles of the lower leaves 1° or more long. Boot bearing tubers. 21. HERACLEUM, L. Calyx-teeth minute. Fruit oval, flat. Carpels with the 2 lateral ribs distant from the 3 dorsal ones, and near the dilated margins. Vittae shorter than the carpels, single in the intervals, and usually 2 on the commissure. — Stout per- ennial herbs, with pinnately or ternately divided or lobed leaves on inflated peti- oles, and white flowers. Involucre few-leaved. Involucel many-leaved. Mar- ginal flowers commonly larger and radiant. 1. H. lanatum, Michx. Villous; leaves very large, ternate; leaflets broadly cordate, deeply lobed, hoary beneath. — Mountains of North Carolina. June. — Stem 4° - 8° high, strongly furrowed. 22. CH^ROPHYLLTJM, L. Calyx-teeth obsolete. Fruit oblong or linear, tapering at the apex, contracted at the sides. Carpels deeply furrowed on the commissure, with 5 obtuse equal ribs. Intervals with single vittoe. — Herbs, with compound finely dissected leaves, and white flowers. Involucre few-leaved or none. Involucel many-leaved. 1. C. procumbens, Lam. Stem weak, slightly pubescent; leaves ter- nately divided ; the divisions bipinnatifid, with oblong obtuse lobes ; umbel sessile, of 2 - 3 long rays ; involucel 4 - 5-leaved, few-flowered ; fruit oblong, abruptly pointed, finely ribbed. — Shady river-banks, Mississippi to North Caro- lina, and northward. April and May. (l)^>r ® — Stem 6' - 18' long. 2. C. Teinturieri, Hook. & Am. More pubescent ; lobes of the leaves narrower and acute ; fruit oblong-linear, more strongly ribbed and tapering at the apex ; otherwise like the last. — Banks of the Apalachicola River, Florida, and westward. March and April. — Stem erect, 1° high. 166 ARALIACE^. (GINSENG FAMILY.) 23. OSMORRHIZA, Raf. Calyx-teeth obsolete. Fruit clavate, angled. Carpels with bristly ribs, fur- rowed on the commissure. Vittse none. — Perennial herbs with aromatic roots. Leaves 2-teraate, with the leaflets ovate, toothed or serrate. Umbels opposite the leaves. Involucre and involucel 2 - 5-leaved. Flowers white. 1. O. brevistylis,fDC. Styles very short, conical ; fruit somewhat taper- ing at the apex. — Mountains of North Carolina and northward. June. — Plant hairy, 1° - 1^° high. Leaflets thin, acuminate, pmnatifid. ORDER 67. ARAL.IACE.flE. (GINSENG FAMILY.) Umbelliferous herbs, shrubs, or trees, nearly as in the last order ; but the flowers (chiefly polygamous) with flat and spreading petals, the styles and carpels of the baccate fruit usually more than two, and the embryo at the apex of copious fleshy albumen. 1. AHAXiIA, L. SARSAPARILLA. Calyx-teeth 5, or none. Petals, stamens, and spreading styles 5. Berry drupaceous, 5-lobed, 5-cellcd. — Herbs or shrubs. Leaves compound. Umbels corymbed or panicled. Flowers whitish. Berry black. * Stems herbaceous. 1. A. racemosa, L. Stem smooth, leafy, widely branched ; leaves ternately decompound ; leaflets large, broadly cordate, doubly serrate ; umbels very numer- ous, panicled. — Rich woods along the mountains, Georgia, and northward. July. — Root thick, aromatic. Stem 3° - 5° high. 2. A. hispida, Michx. Stem leafy, somewhat shrubby at the base, bristly ; leaves bipinnately compound ; leaflets lanceolate-ovate, sharply serrate ; umbels in naked peduncled corymbs. — Mountains of North Carolina, and northward. June and July. — Stem l°-2° high. 3. A. nudicaulis, L. Stem naked, short, bearing 3 long-peduncled um- bels at the apex ; leaf solitary, radical, long-petioled, ternately divided, the divisions quinate ; leaflets oblong-ovate, acuminate, serrate. — Mountains of North Carolina, and northward. May. — Root long and slender, aromatic. Stem 1° high, much shorter than the leaves. * * Stems woody. 4. A. spinosa, L. Stem simple, prickly ; leaves very large, crowded at the summit of the stem, bipinnately compound ; leaflets thick, ovate, crenate, glaucous beneath ; umbels in very large hoary panicles. — Swamps, Florida to Mississippi, and northward. July and August. — Stem 10° - 15° high. 2. PANAX, L. GINSENG. Calyx minutely 5-toothed. Petals and stamens 5. Styles 2-3. Berry fleshy, drupaceous, 2 - 3-lobed, 2 - 3-celled. — Low herbs, with naked stems, bearing at CORNACE^E. (DOGWOOD FAMILY.) 167 the summit a single long-peduncled umbel of greenish flowers, surrounded by a whorl of three 3 - 7-foholate leaves. Berry red or greenish. 1. P. quinquefolium, L. Root fusiform ; leaflets 5 - 7, oblong-obovate, serrate, stalked; styles 2, berry crimson. — Rich woods along the mountains, Georgia, and northward. July. — Stem 1° high. Leaflets 2' - 3' long. 2. P. trifolium, L. Root globose ; leaflets 3-5, lanceolate, serrate, ses- sile ; styles 3 ; berry greenish, — With the last. — Plant 4' - 6' high. ORDER 68. CORNACE^. (DOGWOOD FAMILY.) Trees or shrubs, with simple, entire or rarely toothed exstipulate leaves, and perfect or polygamous flowers. — Calyx coherent with the 1 - 2-celled ovary, 4 - 5-toothed. Petals 4-5, valvate in the bud, sometimes wanting. Stamens 4-10, inserted into the margin of the disk that crowns the ovary. Ovules solitary, anatropous, pendulous. Fruit a berry-like 1- 2-celled, 1 - 2-seeded drupe. Embryo nearly as long as the fleshy albumen. Coty- ledons large and foliaceous. 1. CORNTJS, Tourn. DOGWOOD. CORNEL. Flowers perfect. Calyx 4-toothed. Petals and stamens 4. Stigma capitate. Drupe 2-celled, 2-seeded. — Shrubs or low trees. Leaves and branches opposite (except No. 1 ). Flowers in naked spreading cymes, or capitate, and subtended by a colored involucre. * Flowers white, in a loose open cyme : involucre none. 1. C. alternifolia, L'Herit. Leaves oval, abruptly acute at each end, pale and pubescent beneath, long-petioled, and, like the greenish striped branch- es, alternate ; drupes deep blue. — Banks of streams, Florida, and northward. May. — A widely branching shrub, or small tree. 2. C. stricta, Lam. Leaves ovate or oblong, abruptly acute or acuminate, smooth, whitish beneath ; cymes flat or depressed at the summit ; drupes and anthers pale blue. — Swamps, Florida to North Carolina, and westward. April. — A shrub or small tree. Branches brown. 3. C. paniculata, L'Herit. Leaves smooth, ovate-lanceolate, acuminate, paler beneath ; cymes convex at the summit, somewhat panicled, loose-flowered ; drupes white, depressed-globose. — North Carolina and northward. May and June. — Shrub 4° - 8° high. Branches gray. 4. C. sericea, L. Leaves ovate or elliptical, smooth above, the lower sur- face, like the purplish branches and close depressed cyme, silky-pubescent; drupes pale blue. — Low woods, Florida to Mississippi, and northward. May. — Shrub 6° - 10° high. 5. C. asperifolia, Michx. Leaves short-petioled, lanceolate-ovate or ob- long, acute, very rough on both sides, as well as the branchlets and flat cymes ; 168 CORNACE^E. (DOGWOOD FAMILY.) drupes pale blue. — Dry woods, Florida to South Carolina, and westward. June. — A shrub or small tree. Branches slender and sometimes warty. * * Flowers capitate, subtended by a white 4-leaved involucre. 6. C. florida, L. Leaves ovate-lanceolate or ovate, at length smooth on both sides ; flowers greenish ; drupes ovoid, red. — Oak woods, common. May. — A small tree. Wood hard and close-grained. Leaves of the involucre cmar- ginate and thickened at the summit, showy. 2. NYSSA, L. SOUR GUM. Flowers dicecio-polygamous. Sterile flowers in many-flowered heads or cymes. Calyx 5-parted. Stamens 5-10. Petals and pistil none.^ Fertile flowers single or few in a head. Calyx-limb 5-toothed or obsolete. Petals 5, minute, or want- ing. Stamens 5-10, mostly sterile. Style long, revolute. Stigma decurrcnt. Ovary 1 -celled. Drupe 1-seeded. — Trees or shrubs. Leaves alternate, entire or rarely toothed, finely reticulated. Flowers small, greenish, on axillary or lateral peduncles. * Sterile flowers in loose clusters. 1. !N. multiflora, Wang. Leaves oval or obovate, mostly acute, tomen- tose when young, at length shining above ; fertile peduncles long and slender, 3 - 8-flowered ; drupes ovoid, dark blue. — Rich upland woods, Florida to Mis- sissippi, and northward. May. — A tree 30° - 50° high, with widely spreading branches. Leaves rather thick, dark green, 2' -5' long. Fertile peduncles 1^'- 3' long. Drupe £' long. 2. N. aquatica, L. Branches, leaves, &c. tomentose when young, at length nearly smooth ; leaves short-petioled, varying from lanceolate to orbicu- lar, obtuse, sometimes slightly cordate ; peduncles short, the fertile ones 1-2- flowered ; drupes oval, blue. — Ponds and swamps, Florida to North Carolina, and westward. April and May. — A large tree, or in pine-Barren swamps sometimes a mere shrub. Leaves 1'- 2' long. Peduncles £'-1' long. Drupe smaller than in the last. 3. "N. uniflora, Walt. Leaves large, long-petioled, ovate or oblong, acute, entire or sharply toothed, tomentose beneath, the lower ones often cordate ; fer- tile peduncles elongated, 1-flowered ; drupes ovate-oblong, dark blue. (N. tomentosa, Michx. N. grandidentata, Michx. f.) — Deep swamps and ponds, Florida to North Carolina, and westward. April. — A large tree. Leaves 4' - 6' long. Drupe 8" - 12" long. * * Sterile flowers capitate. 4. N. cap itata, Walt. (OGEECHEE LIME.) Leaves large, short-petioled, oblong, oval or obovate, mucronate or acute, tomentose beneath ; flowers below the leaves, the fertile ones perfect, solitary, on very short peduncles ; drupe ob- long, red. — Swamps, Florida and Georgia, near the coast, and westward. — A small tree. Leaves 3' - 5' long. Drupe 1' long, agreeably acid. CAPRIFOLIACE^E. (HONEYSUCKLE FAMILY.) 169 DIVISION II. MONOPETALOUS EXOGENOUS PLANTS. Floral envelopes double, consisting of both calyx and corolla ; the latter of more or less united petals. ORDER 69. CAPRIFOLIACE^E. (HONEYSUCKLE FAMILY.) Chiefly trees or shrubs, with opposite leaves, and no stipules. Calyx- tube adherent to the ovary, the limb 4 - 5-toothed or lobed. Corolla tubu- lar or rotate, 4 - 5-lobed. Stamens as many as the lobes of the corolla, and alternate with them, inserted on its tube. Ovary 2 - 5-celled, with 1 - many pendulous ovules in each cell. Fruit mostly baccate or drupaceous. Seeds anatropous. Embryo small, in the axis of fleshy albumen. Synopsis. * Corolla tubular. Style slender. Stigma capitate. 1. SYMPHORICARPUS. Corolla campanulate. Berry 4-celled, 2-seeded. Erect shrubs. 2. DIERVILLA. Corolla funnel-shaped. Capsule 2-celled, 2-valved, many-seeded. Erect shrubs. 3. LONICERA. Corolla tubular. Berry 1-3-cel led. Chiefly woody vines. 4. TRIOSTEUM. Corolla tubular. Drupe bony, 3 - 5-seeded. Herbs. * * Corolla rotate. Stigmas 3-5, sessile. Flowers in cymes. 5. SAMBUCUS. Leaves pinnate. Berry 3 - 5-seeded. 6. VIBURNUM. Leaves simple. Drupe 1-seeded. 1. SYMPHORICARPUS, Dill. SNOWBERRY. Calyx-tube globose, the limb 4 - 5-toothed, persistent. Corolla campanulate, nearly regular, 4 -5-lobed. Stamens 4-5, inserted on the throat of the corolla. Ovary 4-celled, 2 of the cells with several abortive ovules, the other two with a single suspended fertile ovule in each. Berry 4-celled, 2-seeded. Seeds bony. — Erect shrubs with entire leaves, and white or reddish flowers in axillary spikes or clusters. 1. S. Vlllgaris, Michx. Leaves oval, downy beneath; flowers in small axillary clusters; corolla smoothish within; berries red. (Symphorea glome- rata, Pers.) — Dry soil among the mountains, Georgia, and northward. July- gept. — Shrub 2° -3° high. 2. DIERVILLA, Tourn. Calyx oblong or cylindrical, narrowed above, with 5 subulate teeth. Corolla funnel-shaped, 5-lobed. Stamens 5. Capsule 2-celled, septicidally 2-valved, many-seeded. — Low shrubs, with ovate or oblong acuminate sen-ate deciduous leaves, and axillary and terminal cymose flowers. 1. D. trifida, Moench. Leaves ovate or oblong-ovate, distinctly petioled, pubescent, ^especially on the veins above ; peduncles mostly 3-flowered ; capsule 15 170 CAPRIFOLIACEuE. (HONEYSUCKLE FAMILY.) ovoid-oblong, narrowed into a neck above. — Mountains of North Carolina. June. — Stem 2° -4° high. Flowers greenish-yellow. 2. D. sessilifolia, Buckley. Leaves ovate-lanceolate, closely sessile and somewhat clasping ; peduncles many-flowered ; capsule cylindrical-oblong, nar- rowed into a short neck above. — With the preceding. — Leaves and capsule larger than in that species. 3. LONICEBA, L. WOODBINE. HONEYSUCKLE. Calyx ovoid, 5-toothed. Corolla tubular, 5-cleft, often bilabiate, and gibbous near the base. Stamens 5. O vary 2 - 3-celled, with several ovules in each cell. Berry 1 - 3-celled, several-seeded. Seeds bony. — Erect or twining shrubs, with entire, often connate leaves. Flowers by pairs or in spiked whorls. 1. L. sempervirens, Ait. Stem twining; leaves oblong or lanceolate, pale and tomentose beneath, the upper pair shorter and connate ; spikes ter- minal ; whorls distinct ; corolla nearly equally 5-lobed, scarlet or orange with- out, yellow within. (Caprifolium, Ell,) — Margins of swamps, Florida, and northward. April - Sept. — Leaves perennial. Corolla 2' long. 2. L. grata, Ait. Stem twining; leaves obovate, glaucous beneath, the 2 or 3 upper pairs connate ; whorls of flowers axillary and terminal ; corolla bi- labiate, the tube long and slender. — Mountains of Carolina, and northward. May. — Young branches often hairy. Corolla 1 ^' long, with a red or purplish tube and a white limb, changing to yellow. Berry orange-red. 3. L. flava, Sims. Smooth and somewhat glaucous ; stem scarcely twining ; leaves oval or obovate, the upper pairs connate ; whorls of flowers crowded, ter- minal; corolla slender, bilabiate. — Banks of rivers in the upper districts of Georgia and South Carolina. June and July. — Corolla 1' long, bright yellow; the 4-cleft limb nearly as long as the tube. 4. L. parviflora, Lam. Smooth; stem twining; leaves elliptical, glau- cous beneath, all more or less connate ; whorls of flowers crowded, peduncled ; corolla short, bilabiate, gibbous at the base; stamens hairy below. — Mountains of North Carolina. — June. — Corolla 8" -10" long, yellow and purplish. 4. TRIOSTETJM, L. FEVER-WORT. Calyx ovoid, with 5 leafy linear-lanceolate persistent lobes. Corolla tubular, equally 5-lobed, rather longer than the calyx. Stamens 5. Ovary 3-celled, with a single ovule in each cell. Fruit a dry drupe containing 3 bony nutlets. — Perennial hairy herbs, with large leaves, narrowed but connate at the base, and sessile axillary flowers. 1. T. perfoliatum, L. Stem soft-hairy; leaves oval, acuminate, entire, hairy above, tomentose beneath ; flowers commonly clustered, brownish-purple. — Shady woods in the upper districts. June and July. — Stem 2° - 4° high. Leaves 4' -7' long. 2. T. angustifolium, L. Stem hirsute ; leaves lanceolate or oblong, acuminate, hirsute above, pubescent beneath ; flowers mostly solitary ,"yellowish. — Shady rich soil among the mountains. June. — Plant smaller than the last. CAPRIFOLIACEJ2. (HONEYSUCKLE FAMILY.) 171 5. SAMBUCUS, Tourn. ELDER. Calyx-lobes minute or none. Corolla rotate, 5-lobed. Stamens 5. Fruit a globular baccate drupe, containing three 1 -seeded nutlets. — Shrubs, with pinnate leaves, and white flowers, in ample terminal cymes. 1. S. Canadensis, L. Leaflets 7-11, oblong, serrate, smoothish, acute, the lower ones often 3-parted ; cymes flat, 5-parted ; fruit black. — Low grounds, common. June and July. — Stem 4°- 16° high, the straight young shoots with large pith. 2. S. pubens, Michx. Leaflets 5 - 7, oblong, serrate, pubescent beneath; cymes paniculate, pyramidal ; fruit red. — Mountains of North Carolina, and northward. June. — Shrub 6° - 10° high. Cymes smaller than in the last. 6. VIBURNUM, L. HAW. SLOE. Calyx minute, 5-toothed. Corolla rotate or somewhat campanulate, 5-lobed. Stamens 5. Ovary 1 - 3-celled, one of the cells containing a single ovule, the others empty. Drupe baccate, containing a single compressed bony nut. — Shrubs or small trees. Leaves lobed or undivided, the petioles sometimes winged. Flowers in terminal cymes, small, white ; the marginal ones occasion- ally radiant and sterile. # Sterile and radiant flowers none. •*- Cymes sessile. 1 . V. prunifolium, L. Leaves thin, obovate or roundish, mostly obtuse, finely and sharply serrate, smooth and glossy, or the veins beneath and more or less dilated petioles rusty-pubescent ; cymes large, 4 - 5-rayed ; drupe oblong- ovoid, black. — Dry rich woods, Florida to Mississippi, and northward. April and May. — A small tree. Fruit edible. 2. V. LentagO, L. Leaves thin, ovate, acuminate, finely and sharply ser- rate, smooth above, the lower surface and dilated wavy petioles roughened with minute scales when young; cymes 4-rayed ; fruit oval, black. — Mountains of Georgia, and northward. May. — A small tree. 3. V. obovatum, Walt. Leaves small, thick, obovate, or obovate-oblong, obtuse, slightly crenate or entire, smooth ; cymes 3-rayed ; drupe ovoid, black. (V. Isevigatum, Ait.) — River-banks, Florida to North Carolina, and westward. April and May. — A shrub or small tree. Leaves £' - 1' long. Cymes small. H— Cymes peduncled. •w- Leaves palmatety lobed. 4. V. acerifolium, L. Pubescent; leaves roundish or broadly ovate, rounded or cordate at the base, coarsely serrate, 3-lobed above the middle; cymes 7 -rayed ; fruit oval, black. — Dry open woods, West Florida to Missis- sippi, and northward. May and June. — A slender shrub, 2° - 4° high. Leaves 2' - 3' wide, becoming smooth above, sometimes almost entire. •«• ++ Leaves undivided. 5. V. nudum, L. Rusty-pubescent ; leaves varying from oval to lanceo- late, entire or nearly so, thick, becoming smooth above, prominently veined be- 172 RUBIACEJE. (MADDER FAMILY.) neath ; cymes rather short-peduncled, 5-rayed ; fruit ovoid, blue. — Swamps, common. April and May. — Shrub 8° - 12° high. 6. V. dentatum, L. Veins of the leaves beneath with tufted hairs in their axils, otherwise smooth ; leaves round-ovate, slightly cordate, coarsely ser- rate, acute, plicate by the strong impressed veins; cymes long-peduncled, 7- rayed ; calyx smooth, with the lobes obtuse ; fruit small, roundish, deep blue. — Kich damp soil, West Florida to Mississippi, and northward. March - May. — A large shrub. 7. V. SCabrellum, Torr. & Gray. Hairy throughout, and the leaves be- neath stellate-tomentose ; leaves ovate or roundish, often cordate, or rarely cune- ate at the base, rather obtusely and coarsely serrate, short-petioled ; calyx-lobes hairy, acute ; corolla hairy ; cymes 7-rayed ; fruit roundish, deep blue. — Swamps or rocky hills, Florida to South Carolina, in the lower districts, and westward. May and June. — Shrub 8° - 12° high. Leaves thick, 1' - 2' long, or sometimes twice that size. 8. V. pubescens, Pursh. Leaves small, ovate or oblong-ovate, coarsely serrate, hairy above, tomeritose beneath, on very short petioles or the uppermost subsessile ; cymes small, smoothish, 7-rayed; fruit oblong, black. — Mountains of North Carolina. June. — A shrub 2° -3° high. Leaves l'-2' long. * * Marginal flowers radiant and sterile. 9. V. lantanoides, Michx. Stem smooth and straggling ; branches, cymes, and lower surface of the round-ovate, cordate, serrate leaves covered with tufted down ; cymes sessile ; fruit ovoid, black. — Deep shades on the mountains of North Carolina. June. — Stem 2° -4° long. Leaves 4' -6' long. Sterile flowers 1; in diameter. OKDER 70. RTJBIACEJE. (MADDER FAMILY.) Herbs, shrubs, or trees. Leaves entire, opposite and united by inter- posed stipules, or whorled. — Calyx-tube adherent to the ovary, or (in Loganieae) free ; the limb 4 - 6-toothed or lobed, or obsolete. Corolla 4-6-lobed, inserted on the throat of the calyx. Stamens 4-6, inserted on the tube of the corolla, and alternate with its lobes. Ovary 2 - 10-' celled, with 1 - several anatropous or amphitropous ovules in each cell. Style mostly solitary. Albumen hard or fleshy. Synopsis. SUBORDER I. COFFEEJE. Ovules and seed solitary in the cells (except No. 7). Calyx-tube adherent to the ovary. § 1. Leaves whorled. Stipules none. 1. GALIDM. Corolla rotate, valvate in the bud. Fruit 2-celled. Herbs. § 2. Leaves opposite, rarely three in a whorl, with stipules interposed. * Herbs. Mature fruit dry. Flowers axillary, single or clustered. 2. SPERMACOCE. Carpels 2, one of them closed by the partition, the other open. Flowers clustered. RUBIACE^E. (MADDER FAMILY.) 173 3. BORRERIA. Carpels 2, both open on the inner face. Flowers clustered. 4. DIODIA. Carpels 2 - 3, bony and closed. Style 2-cleft. Albumen fleshy. 5. ERNODEA. Carpels 2, somewhat fleshy, closed. Style entire. Albumen horny. * * Shrubs. Fruit dry. Flowers in globular peduncled heads. 6. CEPIIALANTIIUS. Carpels 2-4, separating at the base, closed. * * * Shrubs. Fruit fleshy or pulpy. Flowers mostly axillary. i- Ovaries united, forming a compound berry hi fruit. 7. MITCIIELLA. Flowers by pairs. Stamens 4. Berry 4-seeded. 8. MOHINDA. Flowers numerous. Stamens 5- Berry 1-seeded. •<- •*- Ovaries and fruit separate. •H- Albumen horny. 9. CHIOCOCCA. Fruit flattened, even. Stigma entire. Seeds suspended. 10. PSYCHOTRIA. Fruit ribbed. Stigma 2-lobed. Seeds erect. •H- -H- Albumen fleshy. 11. STRUMPFIA. Corolla bell-shaped. Anthers subsessile, united. Leaves whorled. 12. GUETTARDA. Corolla salver-form. Anthers subsessile, separate. 13. ERITIIALIS. Corolla subrotate. Filaments slender. SUBORDER II. CINCHONE2E. Ovules and seeds numerous in the cells. Calyx-tube adherent to the ovary. Leaves opposite. * Fruit baccate, indehiscent. 14. HAMELIA. Fruit 5-celled. Stigma entire. 15. RANDIA. Fruit 2-celled. Stigma 2-lobed. * * Fruit capsular, loculicidally dehiscent. 16. PINCKNEYA. Shrub. Flowers cymose, terminal. Seeds winged. 17. EXOSTEMMA. Shrubs. Flowers solitary, axillary. Seeds winged. 18. OLDENLANDIA. Herbs. Capsule often free from the calyx above. Seeds wingless. SUBORDER III. LOGAMEJE. Ovules and seeds numerous in the cells. Calyx free from the ovary. Fruit capsular. Leaves opposite. * Herbs. 19. SPIGELIA. Corolla tubular. Style single, jointed. * 20. MITREOLA. Corolla short, 5-lobed. Styles 2, united above. 21. POLYPREMUM. Corolla short, 4-lobed. Style single. ** Evergreen woody vines. -•;.-' 22. GELSEMIUM. Corolla campanulate. Seed winged. 1. GALIUM, L. Calyx-teeth obsolete. Corolla rotate, 3 - 4-lobed. Stamens 3-4. Styles 2, united at the base. Stigma capitate. Fruit double, separating into two 1-seeded closed carpels. Albumen horny. — Slender herbs, with square stems and whorled leaves. Flowers minute. ••— The following species are all perennials. * Fruit baccate : peduncles 1 - 3-JJowered : leaves 4 in a whorl. 1. G. hispidulum, Michx. Stems much branched, slightly roughened, hairy at the joints ; leaves small (2;/-6"), rigid, lanceolate-ovate, rough on the margins and veins beneath, acute ; berry roughened, bluish-black. (Rubia Brownei, Michx. ) — Dry sandy soil near the coast, Florida to North Carolina, and westward. May -Sept. — Stems l°-2° long. Root yellow. Flowers greenish- white. 15* 174 EUSTACES. (MADDER FAMILY.) i 2. G. Tiniflorum, Michx. Smooth ; stems mostly simple, slender, erect ; leaves linear, acute, rough on the margins, punctate beneath ; berry smooth, black. — Dry rich soil, Florida to South Carolina, and westward. June and July. — Stems numerous, 1° high. Flowers white. * * Fruit dry : peduncles commonly 3 — many-flowered. 3. G. trifldum, L. Stems slender, weak, smooth or rough-angled, at length diffuse ; leaves 4-6 in a whorl, unequal, varying from linear to spatu- late-lanceolatc, obtuse, smooth, or rough on the margins and midrib, the upper ones often opposite; peduncles 1 - 3-flowered ; corolla-lobes and stamens often 3; fruit smooth. (G. tinctorium, L.) — Wet places, Florida, and northward. June and July. — Stems 1° - 2° long. Flowers white. Plant dries black. 4. G. triflorum, Michx. Stems weak, diffuse, very rough ; leaves 4-6 in a whorl, lanceolate or elliptical, cuspidate, the upper surface and veins be- neath hispid ; peduncles mostly 3-flowered ; fruit densely uncinate-hispid. — Low shaded places, Florida to Mississippi, and northward. July. — Stems 2° - 3° long. Flowers greenish-white. A smoother form is G. cuspidatum, Muhl 5. G. pilosum, Ait. Stems rigid, hairy or roughened on the angles, branching ; leaves small (4" - 8"), 4 in a whorl, oval, slightly pointed, more or less hairy and roughened, dotted ; peduncles 2-3 times forking ; fruit pedi celled, bristly with hooked hairs. (G. Bermudianum, Ell, apparently a diseased state.) — Dry soil, Florida to Mississippi, and northward. June - Sept. — Stem 1 ° - 3° long. Flowers purple. 6. G. circsezans, Michx. Stems erect, smooth or nearly so ; leaves large (I'-l^'), 4 in a whorl, oval, mostly obtuse, 3-nerved, pubescent; peduncles forking, then spreading and spike-like ; fruit bristly with hooked hairs, nearly sessile, nodding. — Dry open woods, Florida to Mississippi, and northward. July. -j- Stems several, sparingly branched, 1° high. Flowers purple. 7. G. latifolium, Michx. Stems erect, smooth ; leaves thin, 4 in a whorl, ovate-lanceolate, acute, smooth, 3-nerved, dotted, minutely fringed on the mar- gins ; peduncles filiform, 2-3 times forking; fruit smooth. — Mountains of North Carolina, and northward. July. — Stems 1°-1|° high. Leaves 1'- 2' long. Flowers purple. 2. SPERMACOCE, L. Calyx 2 - 4-parted, persistent. Corolla salver-shaped or funnel-shaped, 4-lobed, vatvate in the bud. Stamens 4, inserted on the throat of the corolla. Stigma simple or 2-cleft. Fruit composed of two 1 -seeded carpels, separating from the apex downward, one of them closed by the partition, the other open. Seeds grooved on the inner face. — Low herbs. Leaves obliquely straight-veined, their bases connected by the bristly-fringed sheathing stipules. Flowers small, in axillary sessile clusters. 1. S. glabra, Michx. Stem 4-angled, smooth, erect ; leaves lanceolate or oblong, acute, roughened on the margins and veins beneath ; clusters globose, RUBIACE^E. (MADDER FAMILY.) 175 dense, many -flowered ; corolla barely longer than the lanceolate calyx-teeth, white, woolly within ; stamens and style included ; fruit obovate. — Banks of livers, Florida and westward. June. 1J. — Stem l°-2° high. 2. S. Chapmanii, Torr. & Gray. Stem erect, smooth, slightly angled ; leaves oblong-lanceolate, acute, rough above and on the margins ; clusters few- flowered ; corolla white, hairy within, 2-3 times as long as the calyx ; stamens and slender style exserted; fruit turbinate. — Dry soil, Florida, Georgia, and westward. July. 1J. — Stem 6'- 12' high. 3. S. tenuior, L. Stem slender, erect or prostrate, branching from the base, terete, smooth ; leaves lanceolate, rough above, remote ; clusters small, mostly few-flowered ; flowers minute, the smooth white corolla barely longer than the subulate teeth of the calyx ; stamens and style included ; fruit ovoid, hairy. — South Florida, in dry soil. (I) — Stem 3' - 12' long. 4. S. involucrata, Pursh. Stem alternately branched, very hispid ; leaves ovate-lanceolate, acuminate, hirsute on both surfaces ; stipules with many bris- tles ; heads terminal, involucrate ; stamens exserted. — Carolina, Frazer. — About a foot high. Leaves somewhat oblique. Flowers white with a very long tube. Pursh. (*) 3. BOBRERIA, Meyer. Carpels of the fruit separating from the apex downward, both opening length- wise on the inner face. Otherwise like Spermacoce, both in character and habit. 1. B. micrantha, Torr. & Gray. Annual; stem erect, slender, simple or branched above, 4-angled, smooth; leaves remote, lanceolate, mostly obtuse, narrowed at the base, the upper surface and margins rough, the lateral veins obscure ; clusters dense, globose, axillary and terminal ; calyx-teeth 4, subulate, longer than the minute (white) corolla ; fruit ovoid, hairy. — Waste places, Flor- ida. June - August. — Plant 6' - 1 8' high, pale green. Leaves 1' long. 2. B. podocephala, DC., var. pumila. Stems low (3' -6'), smooth, erect or ascending, branching at the base ; leaves smooth, linear, with the mar- gins revolute, those in the axils clustered, the floral ones mostly 4, longer than the solitary terminal long-peduncled globose head; stipular bristles 2-4; fruit pubescent, ovoid, crowned with two subulate spreading calyx-lobes ; corolla somewhat funnel-shaped, mostly 3-lobcd, smooth within ; stigma capitate. — Pine Key, South Florida, Dr. Blodgett. 4. DIODIA, L. Characters chiefly of Spermacoce, but the two bony indehisccnt carpels closed on the inner face. — Herbs. Corolla-tube often long and slender. Flowers few or solitary in the axils of the narrow leaves. 1. D. Virginiana, L. Perennial; stem and leaves smooth, pubescent, or hirsute ; stem prostrate, 4-anglcd ; leaves somewhat fleshy, lanceolate, acute, sessile ; flowers single, or 2 - 6 in a cluster ; corolla hairy within, the tube long 176 RUBIACE^E. (MADDER FAMILY.) and slender ; fruit ovoid, strongly ribbed, crowned with the 2 (rarely 4) linear or lanceolate calyx-teeth. (D. tetragona, Walt. D. hirsuta, Pursh.) — Wet places, Florida to North Carolina, and westward. June - Sept. — Stem 1° - 4° long. Flowers white or purplish. 2. D. teres, Walt. Annual ; stem erect, widely branched from the base, terete, bristly or hairy ; leaves linear or lanceolate, acute, rough ; flowers soli- tary or 2 - 3 together ; corolla funnel-shaped ; fruit obovate, even, crowned with the 4 short calyx-teeth. (Spermacoce diodina, Michx.) — Dry sandy soil, Flor- ida to Mississippi, and northward. July -Sept. — Stem 6' -12' high, some- times prostrate. Flowers purplish. 5. ERNODEA, Swartz. Calyx ovate ; the limb 4 - 6-parted, persistent. Corolla salver-shaped, slender ; the lobes 4-6, re volute. Stamens exserted; anthers linear, erect Style slen- der, longer than the stamens. Fruit obovate, somewhat fleshy, the two separa- ble horny carpels closed. Seeds furrowed on the inner face. — A somewhat shrubby prostrate and smooth plant, with rigid 3-nerved lanceolate leaves, and solitary sessile axillary flowers. 1. E. littoralis, Swartz. — South Florida, along the coast. March and April. — Stems straight, rigid, 4-angled, smooth. Branches short, alternate. Leaves sessile, smooth, acute, the upper ones crowded. Flowers sessile in the upper axils, yellow. Fruit roundish. 6. CEPHALANTHUS, L. BUTTON-BUSH. Calyx obconical, 4-toothed. Corolla tubular, 4-clcft, imbricated in the bud. Stamens 4. Style slender, exserted. Stigma capitate. Fruit diy, obconical, separating from the base into 2-4 one-seeded carpels. Seeds pendulous. Albu- men horny. — Aquatic shrubs, with oval or lanceolate leaves, short entire sti- pules, and white flowers collected into a globose long-peduncled head. Recep- tacle hairy. 1. C. OCCidentalis, L. Smooth, or the young branches and lower sur- face of the ovate-oblong acute leaves pubescent ; peduncles terminal, and in the upper axils. — Ponds and marshes, Florida, and northward. July and August. — Stem 4° -12° high. Leaves petioled, 3' - 5' long, sometimes 3 in a whorl. Heads 1' in diameter. 7. MITCHELLA, L. Flowers by pairs, with their ovaries united. Calyx 4-toothed. Corolla fun- nel-shaped, 4-lobed, hairy within, valvate in the bud. Stamens 4. Style slen- der. Stigmas 4. Fruit composed of two 4-seeded fleshy drupes united, crowned with the 4-toothed calyx. — A smooth creeping evergreen shrub, with small broadly-ovate leaves, minute stipules, and fragrant white terminal flowers. 1. M. repens, L. — Shady woods, Florida to Mississippi, and northward. March and April. — Stem l°-2° long. Leaves 6" -10" long, mostly some- what cordate, shining above, on slender petioles. Corolla ^' long. Fruit red. KUBIACEJL. (MADDER FAMILY.) 177 8. MOKINDA, L. Flowers numerous, their ovaries united into a head. Calyx obscurely toothed. Corolla funnel-shaped, 5-lobed, valvate in the bud. Stamens 5, short. Stylo slender. Stigmas 2, filiform. Fruit composed of 2-4 one-seeded carpels, all united into a fleshy head. — Trees or shrubs. Leaves opposite or whorled. Stipules within the leaves. Flowers terminal, or opposite the leaves. 1. M. Roioc, L. Stem smooth, procumbent or climbing; leaves smooth, lanceolate and acuminate, or obovate oblong and abruptly acute, short-petioled ; stipules broad and short ; flowers small, crimson. — South Florida. March and April. 9. CHIOCOCCA, Browne. Calyx ovate, 5-toothed. Corolla funnel-shaped, 5-lobed, valvate in the bud. Stamens 5, inserted on the base of the corolla ; anthers linear, included. Style slender. Stigma obtuse. Fruit fleshy, roundish, compressed, composed of two oblong 1-seeded nutlets. Seeds suspended. — Shrubs. Leaves smooth, petioled. Stipules connate. Flowers in axillary racemes, white or yellow. 1. C. racemosa, Jacq. Erect; leaves oblong (2' -3' long), acute at both ends ; racemes mostly longer than the leaves, often compound, many-flowered ; corolla many times longer than the calyx-teeth, white, turning yellow. — Varies with the stems prostrate and vine-like, leaves smaller (£'-!' long), more rigid, and longer than the few-flowered simple racemes. — South Florida. — Fruit white. 10. PSYCHOTRIA, L. Calyx ovate, 5-toothed, or nearly entire. Corolla short, funnel-shaped, 4-5- lobed, valvate in the bud. Stamens 4-5. Stigma 2-clcft. Fruit drupaceous, composed of two 1-seeded carpels, mostly ribbed or angled when dry. Seeds erect. Albumen horny. — Shrubs or trees. Leaves opposite, narrowed to a petiole. Stipules sometimes membranaceous and deciduous. Flowers mostly in terminal corymbs or panicles. 1. P. lanceolata, Nutt. Leaves lanceolate, acuminate at each end, the lower surface as well as the branches ferruginous-pubescent ; stipules clasping, ovate, acute or acuminate, deciduous ; corymbs terminal, trichotomous at the base. — South Florida. — Leaves 2' - 3' long. Fruit ovate, red. 2. P. undata, Jacq. Leaves oblong, acuminate at each end, undulate, rugose, and, like the branches, smooth ; stipules round, membranaceous, decidu- ous ; cyme sessile, twice trichotomous, shorter than the leaves ; corolla naked at the throat, hairy at the insertion of the filaments ; fruit (dry) ovoid, 10-ribbed. — South Florida. — Leaves about 3' long. Flowers small. 11. STRUMPPIA, Jacq. Calyx-limb 5-parted ; the lobes acute, erect. Corolla somewhat bell-shaped, deeply 5-parted, the tube very short, the lobes erect, lanceolate, spreading at the apex. Stamens 5, inserted on the base of the corolla ; filaments very short ; 178 RUBIACE^E. (MADDER FAMILY.) anthers thick, cohering in an ovoid-oblong 5-angled tube. Style single, as long as the anthers, villous ; stigma obtuse, 2-lobed. Ovary 2 - 4-celled with a single ovule in each cell. Fruit a 2 -4-celled, 1 - 4-seeded drupe. — A low maritime shrub. Branches roughened by the persistent stipules, trichotomous. Leaves ternate, very rigid, linear, obtuse, entire, the margins revolute. Flowers small, in axillary racemes, shorter than the leaves. Corolla pubescent. Drupe small, red. 1. S. maritima, Jacq. — South Florida, Dr. Blodyett. 12. GUETTARDA, L. Calyx-tube ovoid, the limb tubular, scarcely toothed. Corolla salver-shaped, 4 - 9-lobed, naked in the throat. Anthers 4-9, sessile in the throat of the co- rolla. Style simple. Stigma mostly capitate. Fruit composed of 4 - 9 one-seeded bony carpels, united. — Trees or shrubs, with ovate or lanceolate leaves, and lanceolate deciduous stipules. Peduncles axillary, forking. Flowers sessile. 1 . G. Blodgettii, Shuttl. Leaves membranaceous, elliptical, slightly mu- cronate, feather-veined, rough above, the lower surface, especially the veins, like the branches and cymes, covered with appressed silky hairs ; cymes shorter than the leaves, 5 - 10-nowered ; flowers silky, tetramerous (rarely trimerous) ; stigma entire ; fruit globose, composed of 4 nutlets surrounded by 8 empty cells ; calyx- limb truncate, cleft on one side. — South Florida. — Leaves !'-]£' long. Fruit as large as a pea. 2. G. ambigua, DC. Leaves coriaceous, elliptical or somewhat obovate, cordate at the base, rugose, muricate above, the lower surface, like the branches and cymes, rusty-tomentose ; cymes longer than the leaves, several-flowered; fruit globose, 4-seeded, without empty cells. — South Florida. — Leaves larger than in No. 1. 13. ERITHALIS, Browne. Calyx ovoid, obscurely 4 - 10-toothed. Corolla somewhat rotate, 4 - 10-parted, with linear spreading lobes. Stamens 4-10, inserted on the base of the corolla : anthers linear. Style simple. Stigma 2-lipped. Fruit globose, ribbed, com- posed of 4-10 one-seeded bony carpels. Seeds suspended. — Smooth shrubs, with opposite petioled leaves, broad and short mucronate sheathing stipules, and axillary panicled flowers. 1. E. fruticosa, L. Leaves coriaceous, oblong, obtuse, shining, narrowed into a petiole ; panicles about as long as the leaves, many-flowered ; flowers mostly tetramerous, small ; fruit 5-ribbed, 6 - 10-celled. — South Florida. — Leaves 2' -3' long. Flowers small, white. 14. HAMELIA, Jacq. Calyx oval, 5-toothed. Corolla tubular, somewhat 5-angled, 5-lobed. Sta- mens 5, inserted into the tube of the corolla : anthers linear. Style simple. Stigma obtuse. Berry ovoid, 5-furrowed, 5-celled, many-seeded. Seeds minute, (MADDER FAMILY.) 179 compressed. — Shrubs, with opposite or whorled oblong petioled leaves, lanceo- late stipules, and orange-colored flowers, in axillary and terminal cymes. 1 . H. patens, Jacq. Pubescent ; branches angled ; leaves 3 in a whorl, oblong, acute ; cymes terminal, peduncled, umbellate ; corolla cylindrical, the lobes concave at the apex, and mucronate on the back. — South Florida. — Leaves 3' -5' long. Flowers crimson. Berry black. 15. BANDIA, Houst. Calyx obovatc, 5-toothed. Corolla salver-shaped, 5-lobed. Anthers 5, sessile in the throat of the corolla, linear. Style simple, short. Stigma clavate, 2-lobed. Fruit somewhat dry, 2-celled, many-seeded. Seeds wingless. — Branching mostly spiny shrubs, with opposite leaves, and solitary stipules between the petioles. Flowers solitary or in short racemes. 1 . B. aculeata, L. Spiny ; leaves small, obovate, smooth, coriaceous ; flowers solitary, axillary ; corolla (white) hairy in the throat, the tube 2-3 times as long as the calyx, the limb convolute in the bud. (K. latifolia, Lam.) — South Florida. — Branches rigid. Leaves 5" - 10" long, rather longer than the subulate spreading spines. Corolla 3" -4" long. Fruit ovoid, as large as a pea, about 6-seeded. Sinuses of the calyx hairy. 2. B. ? Clusiaefolia. Spineless ; leaves large, clustered at the end of the branches, obovate, smooth, mucronate ; stipules large, ovate, persistent ; racemes terminal, corymbose, shorter than the leaves ; calyx-teeth subulate ; corolla smooth within, fleshy, the tube many times longer than the calyx, the limb lanceolate, convolute in the bud. (Gardenia clusirefolia, Jacq. ?) — South Flor- ida.— Leaves 3' -4' long, 2' wide, apparently somewhat fleshy, black when dry. Corolla 1' long. 16. PINCETTE YA, Michx. GEORGIA BARK. Calyx oblong-obovate, 5-lobed ; the lobes lanceolate, deciduous, or one of them, in the outer flowers, often transformed into a large colored leaf. Corolla tubular, hairy, with 5 linear-oblong revolute lobes, slightly imbricated in the bud. Stamens 5, exserted : anthers oblong. Stigma obtuse. Capsule globose, papery, 2-celled, opening loculicidally at the apex, and at length septicidally to the base. Seeds numerous, in 2 rows, horizontal, membranaceous, winged. — A shrub or small tree, with pubescent branches. Leaves large, oval or oblong, acute, smoothish above, the lower surface, like the terminal compound cyme, hoary- pubescent. Stipules linear, deciduous. 1. P. pubens, Michx. — Marshy banks of streams in the pine barrens, Florida to South Carolina. May and June. — More conspicuous for its ovate pink-colored floral leaves, than for its purplish spotted corolla. 17. EXOSTEMMA, DC. Calyx obovate or tubular ; the limb 5-toothed, persistent. Corolla-tube very long, terete ; the limb with 5 long linear recurved lobes, valvate in the bud. 180 RUBIACE^E. (MADDER FAMILY.) Stamens 5, exserted. Style filiform, thickened above. Stigma obtuse or 2-lobed. Capsule coriaceous, ovoid, 2-celled, opening loculicidally at the apex, and septi- cidally nearly to the base, many-seeded. Seeds circular, imbricated, winged. — Trees or shrubs. Leaves opposite. Stipules solitary. Flowers white or reddish. 1. E. Caribseum, R. & S. Smooth; branches slender; leaves ovate- lanceolate, acuminate ; peduncles axillary, solitary, 1 -flowered ; corolla as long as the leaves. — South Florida. — Shrub 6° - 12° high. Corolla 2' long, fragrant. 18. OLDENLANDIA, Plum. BLUETS. Flowers tetramerous (except No. 8). Calyx 4-toothed, persistent. Corolla funnel-shaped, salver-shaped, or wheel-shaped, 4-lobed, imbricated in the bud. Stamens 4. Stigma mostly 2-lobed. Capsule roundish or obcordatc, 2-celled, opening loculicidally at the apex, which is often free from the calyx. Seeds few or many, wingless. — Chiefly small herbs, with opposite leaves. Stipules united with the petioles, sometimes fringed with bristles. Flowers small, white or pur- plish. * Corolla salver-shaped, longer than the calyx, smooth : flowers dimorphous, — some of them bearing exserted stamens and an included style, while others bear included stamens and an exserted style : peduncles axillary, solitary : capsule broad, free at the apex. 1. O. COerulea, Gray. Annual or biennial, smooth; stems tufted, fork- ing; leaves lanceolate, those at the base spatulate, clustered; peduncles elon- gated, erect or spreading. (Houstonia coerulea, L. II. patens, Ell.) — Moist banks, Florida to Mississippi, and northward. February and March. — Stems 3' - 6' high. Corolla blue or white, yellow in the throat. 2. O. serpyllifolia, Gray. Perennial, smooth ; stems filiform, prostrate, branching ; leaves ovate or roundish, abruptly contracted into a long and slen- der petiole ; peduncles elongated, terminal and in the forks of the stem. (Hous- tonia serpyllifolia, Michx.) — High mountains of North Carolina. — Stems 6'- 12' long. Peduncles 1 ' - 2' long. 3. O. rotundifolia, Gray. Perennial; stems diffuse, creeping; leaves round or oval, fleshy, abruptly contracted into a short petiole ; peduncles mostly shorter than the leaves, recurved in fruit; flowers white. (Houstonia rotundi- folia, Michx.) — Sandy soil near the coast, Florida to South Carolina, and west- ward. February and March, and bearing apetalous fruiting flowers through the year. * * Corolla funnel-shaped : flowers diueciously dimorphous : capsule free at the apex : stem ^-angled : flowers in terminal cymes. 4. O. purpurea, Gray. Pubescent ; stem branching, erect ; leaves ovate or lanceolate-ovate, sessile, 3-5-ribbed; calyx-lobes longer than the capsule; corolla purple or nearly white, slightly hairy within ; capsule roundish. (Hous- tonia purpurea, L.} — Woods, Mississippi to North Carolina, and northward. June and July. — Stems 8'- 12' high. Calyx-lobes occasionally 3-4 times the length of the capsule. RUBIACEJS. (MADDER FAMILY.) 181 Var. longifolia, Gray. Smooth; leaves lanceolate or linear, 1-ribbed, the lowest spatulate-oblong ; calyx-lobes as long as the globose capsule. (Hous- tonia longifolia, Willd.) — With the preceding. Var. tenuifolia, Gray. Branches and pedicels filiform, spreading ; leaves remote, narrow-linear; flowers and capsules smaller. (Houstonia tenuifolia, Nutt.) — Mountains of North Carolina. July. 5. O. angustifolia, Gray. Smooth; root woody; stems clustered, erect, branching above ; leaves linear ; cymes crowded, with the central flowers nearly sessile; corolla white, very hairy within; capsule ovoid, as long as the calyx - teeth. (Hedyotis stenophylla, Torr. $• Gray.) — Sandy pine barrens, Florida, and westward. June and July. — Stems 1° - 2° high. Var. filifolia. Stem shrubby at the base, diffusely branched ; leaves filiform, remote ; cymes scattered, 3-flowered, the slender pedicels equal and spreading ; capsule obcordate, rather longer than the calyx-teeth, the upper half free. — South Florida. — Stem slender, 6' -10' long. Flowers and capsules very small. * =* * Corolla wheel-shaped, shorter than the calyx-lobes : /lowers axillary and termi- nal, single or clustered, sessile : stamens and style very short : capsule enclosed in the calyx-tube : perennial: stipules fringed, 6. O. Boscii. Stems 4-angled, smooth, diffuse ; leaves linear ; flowers sin- gle, or 2-3 together; corolla white or purplish; capsule ovoid. (Hedyotis Boscii, D (7.) — River-banks, Florida to South Carolina, and westward. July. — Stems 6' -10' long. 7. O. glomerata, Michx. Stems terete, smooth or pubescent, branching ; leaves oblong or oval, short-petioled ; clusters dense, many-flowered ; corolla greenish- white. (Hedyotis glomerata, EH.) — Wet places, Florida to North Carolina, and westward. July. — Stems 10'- 15' high. * * * * Corolla funnel-shaped, 5-lobed, longer than the calyx-teeth : floivers axillary and terminal, pentamerous: capsule top-shaped, included in the calyx-tube: annual: stipules fringed. 8. O. Halei. Stem weak, diffuse, forking; leaves oval-oblong, acute at each end, somewhat fleshy ; flowers solitary, or in short 3 - 5-flowered cymes, white. (Hedyotis Halei, Torr. $° Gray.) — Banks of rivers, South Florida, and westward. July. 19. SPIGELIA, L. PINKROOT. Calyx 5-parted; the lobes linear-subulate, persistent. Corolla tubular-fun- nel-shaped, 5-lobed, valvate in the bud. Stamens 5 : anthers linear. Style slender, jointed, hairy above. Stigma capitate. Capsule composed of two few- seeded carpels, which at length separate at the base and open loculicidally. — Herbs. Leaves opposite. Flowers in one-sided terminal spikes, rarely solitary. 1. S. loganioides, A. DC. Stem simple, ascending, somewhat 4-angled, the upper part and joints slightly puberulent ; leaves ovate or obovate, sessile, the upper surface and margins roughish ; flowers axillary, solitary, or the ter- minal ones three in a cluster ; tube of the corolla more than twice as long as the 16 182 RUBiACEuE. (MADDER FAMILY.) calyx-lobes. (Coelostylis, Torr. fr Gray.) — Near Fort King, East Florida. — Stem 6' - 10' high. Leaves 4'-' - 9" long. Corolla 4" long, white. 2. S. gentianoides, Chapm. Stem erect, simple, 4-angled, roughish; leaves roundish, ovate, or oblong, sessile, acute, the upper surface and margins roughened ; spikes terminal, few-flowered ; lobes of the corolla connivent ; sta- mens and style included. — Light dry soil, West Florida. May and June. — Stem 6' - 10' high. CoroUa 6" - 10" long, pale rose-color. 3. S. Marilandica, L. Stem simple, erect, smooth, 4-angled; leaves ovate-lanceolate, or oblong, acute, sessile, pubescent on the veins ; spikes termi- nal, many-flowered, sometimes forking ; corolla long, slender, the lobes spread- ing; anthers and style exserted. — Rich woods, Florida to Mississippi, and northward. May and June. — Stem l°-2° high. Corolla l£' long, scarlet, yellow within. — A popular vermifuge. 20. MITBEOLA, L. MITRE-WORT. Calyx 5-parted. Corolla short, 5-lobed, valvate in the bud, the tube roundish, bearded in the throat. Stamens 5, included : anthers ovate. Styles 2, short, united above. Stigma capitate. Capsule 2-parted, mitre-shaped, many-seeded, the two lobes opening on the inner face near the apex. Seeds oval, concave. — Smooth herbs, with opposite leaves, and small white flowers in terminal and axillary cymes, with the simple branches recurved in the bud. 1. M. petiolata, Torr. & Gray. Stem branching; leaves thin, oblong, acute, narrowed into a petiole. (Ophiorhiza lanceolata, Ell.) — Muddy banks, Florida to North Carolina, and westward. June - Sept. (i) — Stem 4-angled, lo _ go high. Leaves 2' - 3' long. 2. M. sessilifolia, Torr. & Gray. Stem simple, 4-angled ; leaves thick, ovate of roundish, strongly veined, sessile, rough on the margins ; flowers and capsule very small. (Ophiorhiza Mitreola, Michx.) — Varies with lanceolate obscurely-veined leaves, and larger flowers and fruit. — Grassy swamps, Florida to North Carolina, and westward. July -Sept. (1) — Stem 6' -18' high. Leaves 6" - 10" long. Plant pale green. 21. POLYPREMUM, L. Calyx deeply 4-parted, persistent. Corolla wheel-shaped, bearded in the throat, 4-lobed, imbricated in the bud. Stamens 4. Style single, very short. Stigma ovoid, entire. Capsule ovoid, compressed, 2-celled, loculicidally 2-valved, many-seeded. — A low smooth perennial herb, with 4-angled forking stems, linear acute leaves, their bases united by the membranaceous stipules, and solitary ses- sile white flowers in the forks of the stem. 1. P. procumbens, L. — Waste places, Florida to North Carolina. June - Sept. — Stems 6' - 10', erect or prostrate, clustered. Flowers very small, the corolla barely longer than the calyx-lobes. VALERIANACE^E, (VALERIAN FAMILY.) 183 22. GELSEMIUM, Juss. YELLOW JESSAMINE. Flowers dimorphous. Calyx 5-parted, persistent. Corolla funnel-shaped, 5- lobed ; the lobes rounded, emarginate, spreading, quincuncial in the bud, the sinuses impressed. Stamens 5, inserted near the base of the corolla : anthers oblong-sagittate, extrorse. Styles united, filiform, partly persistent. Stigmas 4, linear, spreading. Capsule oblong, compressed, 2-celled, opening septicidally to the middle, and loculicidally at the apex, each valve tipped with the persistent base of the styles. Seeds several, oval, flat, winged, obliquely imbricated in two rows. — A smooth woody vine, with opposite evergreen* leaves, minute stipules, and large yellow fragrant flowers, in axillary bracted and cluster-like racemes. 1. G. sempervirens, Ait. — Margins of swamps, and river-banks, Flor- ida to North Carolina, and westward. March and April. — Stem twining, pur- plish. Leaves lanceolate or ovate, acute or subcordate at the base, short-petioled. Racemes few-flowered. Pedicels scaly. Corolla lf- 1£' long. ORDER 71. VALERIANACE^E. (VALERIAN FAMILY.) Herbs with opposite exstipulate leaves, and cymose flowers. — Calyx- tube adherent to the ovary. Corolla tubular or funnel-shaped, mostly 5- lobed, imbricated in the bud. Stamens distinct, fewer than the corolla- lobes, and inserted into its tube. Ovary 3-celled, two of which are empty, the third containing a single suspended anatropous ovule. Style slender. Stigmas 1-3. Fruit 1 - 3-celled, 1-seeded. Albumen none. 1. VALEBIANA, Toura. VALERIAN. Limb of the calyx composed of several plumose bristles, at first incurved, afterward spreading. Corolla gibbous at the base, 5-lobed. Stamens 3. Fruit 1-celled, 1-seeded. — Perennials. 1. V. scandens, L. Smooth; stem climbing ; leaves on slender petioles, ternately divided ; leaflets ovate, entire ; cymes paniculate, diffuse, axillary and terminal ; corolla very short. — East Florida. 2. V. pauciflora, Michx, Smooth; stem (l°-3°) erect, or decumbent at the base, simple ; leaves membranaceous, toothed or serrate, the radical ones mostly entire, ovate or cordate, long-petioled, the others pinnately 3 - 7-lobed ; cymes terminal, in a close panicle ; tube of the pale pink corolla long and slen- der. — Mountains of Tennessee, and northward. June and July. 2. 3TEDIA, Moench. LAMB-LETTUCE. Calyx-limb toothed or obsolete. Corolla funnel-shaped, 5-lobed. Statnens 3. Fruit 3-celled, two of the cells empty and sometimes confluent into one, the other 1-seeded. — Annual herbs, with forking stems, opposite entire or lobed leaves, and white or purplish flowers in crowded bracted cymes. 184 COMPOSITE. (COMPOSITE FAMILY.) 1. P. radiata, Michx. Leaves oblong, the upper ones clasping and toothed at the base ; fruit mostly downy, ovoid, with a furrow between the parallel and contiguous empty cells ; flowers white. — Kiver-banks, Florida, and northward. February and March. — Stem 6' - 12' high. ORDER 72. COMPOSITE. (COMPOSITE FAMILY.) Flowers clustered in a dense head upon a common receptacle, and sur- rounded by an involucre. Calyx united with the ovary ; the limb (pap- pus) either obsolete, or forming a cup-like or toothed border, or divided into chaffy scales or bristles. Corolla superior, flat or funnel-shaped, 5- (rarely 4-) lobed, valvate in the bud. Stamens alternate with the lobes of the corolla, and inserted into its tube : anthers cohering in a cylinder (syngenesious). Style single : stigmas 2. Fruit (achenium) dry and seed- like. Seed solitary, erect, without albumen. Radicle inferior. — Herbs or shrubs. Leaves without stipules. Involucre composed of short or leafy bracts (scales of the involucre}, arranged in 1-many series. Receptacle naked, or furnished with scales (chaffy). Heads with the flowers all tubu- lar (discoid), or all strap-shaped, or the marginal ones strap-shaped or ligulate (radiate). Artificial Synopsis of the Genera. SUBORDER I. TUBULIFLOR^. Corolla of the perfect flowers tubular, equally 5- (rarely 3 - 4-) lobed. Ray-flowers, when present, ligulate, either pistillate or neutral. § 1. Heads discoid. * Heads with the flowers all perfect. No. Pappus none. Leaves resinous-dotted. Flowers yellow. . . . FLAVERIA. 55 Pappus bristly or hairy. Flowers yellow. Receptacle pointed. . BIGELOVIA. 21 Receptacle flat Nos. 1 & 83 in SOLIDAGO. 20 Receptacle convex RUGELIA. 75 Flowers white, blue, or purple. Receptacle chaffy. Leaves opposite. Flowers white MELANTHERA. 40 Leaves alternate. Flowers purple. CARPHEPHORTJS. 8 Receptacle bristly. Leaves spiny CIRSIUM. 78 Leaves not spiny, cordate LAPP A. 79 Receptacle naked. Scales of the involucre in a single row CACALIA. 73 Scales of the involucre in 2 or more rows. Pappus double, the outer row very short VERNONIA. 1 Pappus single. Achenia ribbed or striate. Pappus plumose. Flowers cream-colored KUHNIA. 10 Pappus scabrous. Leaves cordate BRICKELLIA. 11 Pappus scabrous. Leaves not cordate LIATRIS. 9 COMPOSITE. (COMPOSITE FAMILY.) 185 Achenia not ribbed, 5-angled. No. Receptacle conical CONOCLINIUM. 14 Receptacle flat. Stems climbing. MIKANIA. 13 Receptacle flat. Stems erect EUPATORIUM. 12 Pappus scaly. Flowers blue or purple. Pappus a cup-shaped border of united scales CCELESTINA. 5 Pappus slender, almost bristly. Pappus deciduous. Heads large and single STOKESIA. 2 Pappus persistent. Heads small, in 3-bracted clusters. . ELEPHANTOPUS. 3 Pappus of 5 oval almost bony scales. Leaves whorled. . » . SCLEROLEPIS. 7 Flowers white. Receptacle naked. Leaves entire, linear or lanceolate. ,. PALAFOXTA. 57 Leaves entire, ovate or cordate AGERATUM. 6 Leaves pinnately lobed. ....... . . . IIYMENOPAPPUS. 58 Receptacle chaffy. Achenium top-shaped. Scales of the pappus 5 - 6. . . . MARSHALLIA. 63 Achenium flat. Pappus 2-awned. ACTINOMERIS. 49 Flowers yellow. Pappus 2 - 4-awned. Awns of the pappus deciduous HELIANTHUS. 47 Awns of the pappus persistent, hispid upward. .... COREOPSIS. 60 Awns of the pappus persistent, hispid downward BIDENS. 62 * * Heads with flowers variously imperfect. Marginal flowers pistillate. Central flowers perfect. Pappus bristly. Scales of the involucre in a single row. ERECHTIIITES. 72 Scales of the involucre in 2 or more rows. Involucre persistent. Leaves sinuate-lobed. CONYZA. 26 Involucre persistent. Leaves entire. Anthers tailed. . . . PLUCHEA. 28 Involucre persistent. Leaves entire. Anthers tailless. . . GNAPHALIUM. 70 Involucre deciduous. Heads spiked. . . . . . PTEROCAULON. 29 Pappus not bristly, 5-lobed TANACETUM. 67 Pappus none • .' ARTEMISIA. 68 Marginal flowers pistillate. Central flowers staminate. Pappus none. Style rigid, persistent. SOLIVA. 69 Pappus none. Style deciduous. Heads nodding IVA. 35 * Marginal flowers neutral. Central flowers perfect CENTAUREA. 77 * * * Heads dioecious or monoecious. Staminate and pistillate heads on the same plant. Fruiting involucre 1-seeded, naked or tubercled AMBROSIA. 36 Fruiting involucre 2-seeded, armed with hooked spines. . . . XANTHIUM. 37 Staminate and pistillate heads on separate plants. Anthers tailed. Hoary herbs ANTENNARIA. 71 Anthers tailless. Smooth shrubs BACCHARIS. 27 §2. Heads radiate. Rays pistillate. Flowers all fertile. Receptacle naked. Rays yellow. Leaves opposite. Pappus none FLAVERIA. 55 Pappus scaly PECTIS. 4 Rays yellow. Leaves alternate. Scales of the involucre in 1 row SENECIO. 74 Scales of the involucre in 2 rows. IIELENIUM. 69 Scales of the involucre in several rows INULA. 25 186 COMPOSITES. (COMPOSITE FAMILY.) Rays white or purple. Pappus none. . . . e . x • Pappus bristly. . . . •'» "••*i- . Receptacle pitted. Rays white or purple. Pappus double. Pappus single. Rays about 5. Achenia silky. . Pappus single. Rays numerous. Pappus bristly. . Pappus single. Rays numerous. Pappus scaly. . Rays yellow. Pappus double, of the ray and disk flowers alike. . Pappus double, of the ray flowers none. . . . Pappus single. Leaves opposite. Heads large, single or corymbose. . Leaves alternate. Heads racemed or clustered. Leaves alternate. Heads panicled. *, Receptacle chaffy. Involucre double, the outer 4-leaved, 4-angled. . Involucre imbricated or spreading. Maritime shrubs. Pappus 4-toothed. . -• •- .- -. . Herbs. Receptacle conical or elongated. Rays persistent. Corolla-lobes velvety. ." . >;- Rays deciduous. Achenia 3 - 4-angled. . . . Rays deciduous. Achenia compressed. . Receptacle flat. Leaves lobed, alternate Leaves not lobed. Pappus 2-awned. Leaves not lobed. Pappus none. . . Flowers of the disk sterile. Rays yellow. Pappus none. Rays yellow. Pappus a toothed crown Rays yellow. Pappus 2-toothed or awned. Achenia winged. Rays yellow. Pappus 2-toothed or awned. Achenia wingless. Rays white. Receptacle conical " » Rays neutral (without pistils). Receptacle naked, or nearly so. Achenia villous. Pappus scaly, long-awned. Achenia smooth or the angles hairy. Pappus awnless. Receptacle deeply pitted. Margins of the pits entire. Perennial Margins of the pits toothed. Annual Receptacle chaffy throughout. Involucre double. Pappus 2 - 4-awned. Awns of the pappus hispid upward. . . ... Awns of the pappus hispid downward. Achenia beakless. Awns of the pappus hispid downward. Achenia beaked. Involucre simple or imbricate. Pappus a cup-shaped border, or none. Chaff of the receptacle elongated, spine-pointed. Chaff of the receptacle not elongated nor spine-pointed. Pappus 2 -4-awned. Achenia winged. Leaves divided. Receptacle elongated. Achenia winged. Leaves undivided. Receptacle convex. Achenia wingless. Awns of the pappus deciduous. Achenia wingless. Awns of the pappus persistent. . Receptacle chaffy at the apex. Achenia ribbed. No. LEUCANTHEMUM. 66 ERIGERON. 17 DIPLOPAPPUS. 18 SERICOCARPUS. 15 . ASTER. 16 BOLTONIA. 19 CHRYSOPSIS. 24 HETEROTHECA. 23 ARNICA. 76 SOLIDAGO. 20 . ISOPAPPUS. 22 TETRAGONOTHECA. 43 > BORRICHIA. 39 ZINNIA. 41 HELIOPSIS. 42 SPILANTHES. 53 ACHILLEA. 65 VERBESINA. 54 . ECLIPTA. 38 POLYMNIA. 30 CHRYSOGONUM. 31 SILPHIUM. 32 BERLANDIERA. 33 PARTHENIUM. 34 GAILLARDIA. 56 LEPTOPODA. 60 . BALDWINIA. 61 ACTINOSPERMUM. 62 COREOPSIS. 50 BIDENS. 52 . COSMOS. 51 ECHINACEA. 44 . RUDBECKIA. 45 . LEPACHYS. 46 . ACTINOMERIS. 49 HELIANTHUS. 47 HELIANTHELLA. 48 MARUTA. 64 COMPOSITE. (COMPOSITE FAMILY.) 187 SUBORDER II. LABIATIFLOIkE. Corolla of the perfect flowers 2-lipped ; the outer lip 3-lobed, the inner 2-lobed. No. Herb stemless. Scape 1-flowerted. Flower nodding. . . . CHAPTALIA. 80 SUBORDER UI. LIGULIFLOR/E. Corolla of all the flowers li- gulate. \ Pappus none. Achenia many-ribbed » APOGON. 81 Pappus scaly and bristly. Scales of the pappus 5, with 5 intermediate bristles KRIGIA. 82 Scales of the pappus and bristles numerous CYNTHIA. 83 Pappus hairy. Pappus tawny or dirty-white. Flowers erect, rose-color. Leaves filiform LYGODESMIA. 86 i Flowers erect, yellow. Achenia beakless HIERACIUM. 84 Flowers erect, yellow. Achenia long-beaked PYRRIIOPAPPUS. 88 Flowers nodding, whitish or purplish. NABALUS. 85 Pappus clear white (except in one Mulgedium). Achenia conspicuously beaked. Achenia ribbed. Stemless herbs TARAXACUM. 87 Achenia flat. Stems leafy LACTUCA. 89 Achenia beakless or nearly so. Flowers blue. Achenia slightly beaked MULGEDIUM. 90 Flowers yellow. Achenia beakless SONCHUS. 91 SUBORDER I. TRIBE I. VERNONIACE^E. Heads discoid; the flowers all tubular and per- fect : branches of the style terete, filiform, hairy all over ; the stigmatic lines only on the lower part. — Herbs, with alternate leaves and purple flowers. PECTIS alone has pistillate rays and yellow flowers. 1. VERNONIA, Schreb. IRON-WEED. Heads many-flowered, the flowers all equal and tubular. Involucre shorter than the flowers ; the scales closely imbricated in several rows. Receptacle naked. Achenia cylindrical, ribbed. Pappus double; the exterior consisting of very short scale-like bristles, the interior of copious capillary bristles. — Per- ennial herbs, with alternate leaves, and corymbose purple flowers. 1. V. oligophylla, Michx. Stem nearly naked; leaves rough above, pubescent beneath, denticulate ; those at the base large, oval or oblong, the others small, distant, lanceolate; corymb few-flowered, spreading; involucre bell-shaped, the scales lanceolate, acuminate, fringed. — Damp soil, Geor- gia to North Carolina, and westward. July. — Stem 2° high, sparingly branched. 2. V. ovalifolia, Torr. & Gray. Stem pubescent, very leafy, corymbose- branched above; leaves roughish above, pubescent, beneath; the lowest ones oval or oblong, toothed-serrate ; the upper lanceolate and entire ; involucre bell- 188 COMPOSITE. (COMPOSITE FAMILY.) shaped ; scales ovate, acute, fringed. — Dry rich woods, Middle Florida. June and July. — Stem 2° - 3° high. 3. V. Noveboracensis, Willd. Stem more or less pubescent, branched above ; leaves lanceolate, serrate, mostly roughish above, smooth or pubescent beneath ; corymbs spreading ; involucre hemispherical, the scales fringed, ovate, ending in a long filiform point, or simply acute. (V. tomentosa, Ell. V. pras- alta, Willd.) — River-banks and low ground, Florida to Mississippi, and north- ward. July -Sept. — Stem 3°-6° high. Scales of the involucre purple, and usually covered with web-like hairs. 4. V. fasciculata, Michx., var. altissima, Torr. & Gray. Stem tall, and, like the lanceolate serrate leaves, smoothish; involucre small, hemispheri- cal; the scales ovate, acute or mucronate, fringed, appressed. (V. altissima, Nutt.) — Low ground, Florida to North Carolina, dnd westward. September. — Stem 6° - 10° high. Leaves 6' - 1 2' long. 5. V. angustifolia, Michx. Stem slender, smooth or hairy, very leafy ; leaves linear or linear-lanceolate, smoothish, or pubescent and roughish, the low- est ones sparingly denticulate, the upper entire, with the margins revolute ; cor- ymbs mostly umbel-like ; involucre bell-shaped ; the scales lanceolate, fringed, acute or conspicuously mucronate. (V. scaberrima, Nutt.) — Dry pine barrens, Florida to North Carolina, and westward. June - August. — Stem 2° - 3° high. 2. STOKESIA, L'Her. Heads many-flowered ; the marginal flowers much larger, deeply split on the inside, and ray-like. Involucre subglobose, bracted, the outer scales prolonged into a leafy bristly-fringed appendage, the inner ones lanceolate and entire. Re- ceptacle naked. Achenia short, 3-4-angled, smooth. Pappus composed of 4-5 filiform chaffy deciduous scales. — A sparingly branched downy-stemmed perennial. Leaves smooth, lanceolate, entire, the upper ones sessile, and, like the bracts, fringed at the base, the lowest narrowed into a slender petiole. Heads few or solitary, large, terminal. Flowers blue. 1. S. cyanea, L'Her. — "Wet pine barrens, South Carolina, and westward, very rare. — Stems 1° - 1|° high. Heads 1' wide. 3. ELEPHANTOPUS, L. ELEPHANT'S-FOOT. Heads 3 - 5-flowered, crowded in terminal 3-bracted clusters. Flowers all equal and similar. Involucre compressed ; scales 8, in 2 rows, dry, oblong, acute, dotted. Receptacle naked. Corolla deeply split on one side, palmate. Achenium oblong, ribbed, hairy. Pappus bristly from a dilated base, double or single. — Erect hairy corymbose-branched perennials, with alternate ample leaves, and purple or white flowers. 1. E. Carolinianus, Willd. Stem leafy, hairy; leaves thin, oval or oblong, incurved-serrate, hairy, tapering into a petiole; bracts ovate, longer COMPOSITE. (COMPOSITE FAMILY.) 189 than the heads ; scales of the involucre slightly hairy. — Damp shady soil, Flor- ida to Mississippi, and northward. July and August. — Stem l°-2° high. Leaves 3' -6' long, 2' -4' wide. Flowers purple. 2. E. tomentOSUS, L. Eough-hairy ; stem nearly naked ; radical leaves spreading, obovate-oblong, narrowed into a petiole; stem-leaves (1-2) small, lanceolate ; bracts ovate or cordate, usually shorter than the heads ; scales of the involucre very hairy. (E. nudicaulis, Ell.) — Dry sandy soil, Florida to North Carolina, and westward. June- August. — Stem l°-2° high. Eadical leaves 4' - 10' long, 2' wide, spreading on the ground. Flowers pale purple. 4. PECTIS, L. Heads several-flowered, radiate. Rays pistillate. Disk-flowers somewhat 2- lipped, perfect. Involucre cylindrical. Scales 5 - 8, in a single row. Recepta- cle naked. Branches of the style short, obtuse. Achenium linear. Pappus composed of about five unequal bristle-pointed scales. — Chiefly annuals. Leaves opposite, glandular-dotted, bristly on the margins. Flowers small, yellow. 1. P. linifolia, L. Stem diffusely branched (6'- 12' high) ; leaves linear, connate ; heads small, on long and slender bracted peduncles ; scales of the in- volucre slightly produced at the base ; achenia hairy. — South Florida. TRIBE II. EUPATORIACE^E. Heads discoid,- the flowers all tubular and perfect .- branches of the style, usually elongated, club-shaped, minutely pubescent ; the stigmatic lines obscure. — Flowers white, blue, or purple. 5. CCELESTINA, Cass. Heads many-flowered. Involucre nearly hemispherical ; the scales numerous, imbricated. Receptacle naked or chaffy. Achenia 5-angled. Pappus cup- shaped, truncate or more or less prominently toothed. — Leaves opposite, toothed. Heads in close corymbs. Flowers blue or purple. 1. C. maritima, Torr. & Gray. Stem diffuse, somewhat shrubby at the base, smooth ; leaves ovate, abruptly contracted into a slender petiole ; corymbs few-flowered ; receptacle naked ; pappus a whitish truncated margin. — South Florida. — Stem 1 ° - 2° long. Flowers blue. 6. AGERATUM, L. Receptacle always naked^ Pappus composed of 5-10 distinct scales. Oth- erwise like Coelestina. 1 . A. COnyzoides, L. Leaves ovate, rhombic, or cordate, on rather long petioles ; scales of the pappus 5, slightly serrate, awn-pointed from a broad base. — Wet places near Savannah, Georgia. May. — Pubescence and form of the leaves variable. Flowers white or blue. 190 COMPOSITE. (COMPOSITE FAMILY.) 7. SCLEROLEPIS, Cass. Heads many-flowered. Scales of the involucre linear, imbricated in two rows, equal. Receptacle naked. Corolla 5-toothed. Achenia 5-angled. Scales of the pappus 5, almost horny, oval. — A smooth aquatic perennial herb, with whorled linear leaves, and 1-3 heads of purple flowers, terminating the stem or peduncle-like branches. 1. S. verticillata, Cass. (Sparganophorus verticillatus, Miclix.) — Shal- low ponds, Florida to Mississippi, and northward. July. — Stems ascending, 1° high. Leaves 5 - 6 in a whorl. Heads £' wide. 8. CARPHEPHORUS, Cass. (LIATRIS, Ell] Heads many-flowered. Scales of the involucre imbricated in 3 - 5 rows, ovate or lanceolate, appressed. Receptacle chaffy. Achenia 10-ribbed. Pappus of numerous unequal bearded bristles. — Erect perennial herbs. Leaves alternate. Heads corymbed. Flowers purple. 1. C. Pseudo-Liatris, Cass. Pubescent and somewhat hoary; stem simple, rigid ; leaves linear, appressed, the lowest crowded, elongated ; corymb small, dense, mostly simple ; pedicels bracted ; scales of the involucre lance- olate, acute, hairy. — Open grassy pine barrens, West Florida. September. — Stem 6'- 18' high. Heads rarely racemose. 2. C. tomentOSUS, Torr. & Gray. Stem simple, tomentose; leaves smooth or hairy, gland-pointed ; the lowest oblong or lanceolate, 3-ribbed, nar- rowed into a long clasping petiole, the others numerous, small, oblong or oval, sessile ; corymb loose-flowered ; scales of the involucre very tomentose, the outer ones short, ovate, the inner oblong, acute. (L. Walteri, Ell.) — Low pine bar- rens, North and South Carolina. September. — Stem 2° high. 3. C. COrymboSUS, Torr. & Gray. Stem tall, hairy ; leaves smooth or more or less hairy; the lowest cuneate-lanceolate, obtuse, 1- or obscurely 3- ribbed; the others numerous, small, oblong, sessile; heads about 20, closely corymbed ; scales of the involucre nearly smooth and equal, oval, very obtuse, broadly margined. (L. tomentosa, Ell.) — Margins of swamps, Florida to North Carolina. September. — Stem 2° - 4° high. 4. C. bellidifolius, Torr. & Gray. Smooth ; leaves spatulate-lanceolate, 3-ribbed, obtuse ; heads few in a loose corymb ; scales of the involucre oblong, obtuse, sparingly fringed on the margins; pappus slightly plumose. — Dry sand-hills, Wilmington, North Carolina. ' September. — Stems several from the same root, 12'- 18' high. Heads sometimes panicled. « 9. LIATBIS, Schreb. BTJTTON-SNAKEROOT. Heads few- or many-flowered, the flowers all similar and perfect. Scales of the involucre imbricated. Receptacle naked. Corolla 5-lobed. Achenia nearly terete, narrowed at the base, about 10-ribbed. Pappus of numerous plumose or bearded bristles. — Perennial herbs (rarely shrubby), with mostly tuberous roots COMPOSITE. (COMPOSITE FAMILY.) 191 and simple stems. Leaves alternate, usually entire. Flowers purple, often va- rying into white, commonly dotted with resinous particles. § 1. Root tuberous: leaves very numerous, linear or lanceolate, the lowest broader and tapering at the base, the upper sessile: heads in spikes or racemes: achenia hairy: pappus plumose or bearded: stems simple, or in more vigorous plants sometimes branching below the spikes, and bearing fewer-flowered heads. * Scales of the involucre with petal-like or leafy tips: pappus plumose. 1. L. elegans, Willd. Heads very numerous in a cylindrical raceme, 4- 5-flowered ; inner scales of the involucre petal-like, purple ; stem tomentose ; leaves smooth, the lowest lanceolate. — Dry pine barrens, Florida to South Car- olina, and westward. August. — Stem 2° high. Heads showy. 2. L. squarrosa, Willd. Heads few or numerous, large, many-flowered, cylindrical ; scales of the involucre with leafy spreading tips ; stem pubescent ; leaves smoothish or hairy, long, linear, rigid, 3 - 5-ribbed. — Dry sandy soil, Florida to Mississippi, and northward. July and August. — Stem 1°- 1£° high. Heads 1' long, sessile or terminating short branchlets. Corolla-lobes hairy. * * Scales of the involucre not appendaged. H- Heads 3-6-flowered: pappus conspicuously plumose. 3. L. Boykinii, Torr. & Gray. Nearly smooth; stem slender; leaves linear, dotted; heads 3-4-flowered, rather closely spiked; scales of the invo- lucre smooth, lanceolate or linear, acuminate and spreading at the apex, as long as the pappus. — Near Columbus, Georgia. August and September. — Stem 1 ° - 2° high. Spike 6' - 1 0' long. 4. L. tenuifolia, Nutt. Smooth; stem tall and slender; leaves narrow- linear or filiform, the lowest long and crowded ; heads 5-flowered, in a long and close raceme ; scales of the involucre barely pointed, smooth, purple. — Dry pine barrens, Florida to North Carolina, and westward. September. — Stem 2° -4° high. Racemes often 1-sided. -»- H- Heads 3 -many-flowered: pappus densely bearded. 5. L. pauciflora, Pursh. Stem pubescent, declining; leaves linear, short, smooth; heads 4 - 5-flowered, in a long 1-sided raceme; scales of the involucre oblong-lanceolate, acute, smooth, or pubescent on the margins. (L. secunda, Ett.) — Dry sandy ridges in the middle districts. Alabama to North Carolina. September. — Stem 2° - 3° long. 6. L. Chapmanii, Torr. & Gray. Stem tomentose; leaves smooth or pubescent, linear, rather obtuse; the uppermost very short and bract-like; heads mostly 3-flowered, cylindrical, densely spiked ; scales of the involucre lan- ceolate, acuminate, smooth ; the outer ones much shorter and broader ; corolla and very hairy achenium large. — Dry sandy ridges, Florida. July -Sept. Stem l°-2°high. 7. L. gracUis, Pursh. Stem tomentose and somewhat hoary; leaves smooth or nearly so, the lowest lanceolate, obtuse, long-petioled, the others lin- ear, appressed or spreading, short ; heads small, 3 - 7-flowered, sessile or on slender tomentose and bracted pedicels ; scales of the involucre oblong, rather 192 COMPOSITE. (COMPOSITE FAMILY.) obtuse or mucronate, more or less pubescent ; the edges not margined and com- monly ciliate. — Sandy pine barrens, Alabama, Georgia, and Florida. Septem- ber.— Stem l°-2° high. Varies greatly in the length and direction of the pedicels. 8. L. graminifolia, Willd. Stem usually smooth, and striped with greener lines ; leaves more or less hairy on the upper surface, and fringed near the base ; the lowest lanceolate or linear-lanceolate, elongated, the upper linear ; heads in spikes or racemes, often very numerous ; involucre broadly obconical, 7-14-flowered; the scales oblong-spatulate, rounded at the apex, narrowly mar- gined. (L. gracilis, Ell, a more slender form, with the fewer-flowered heads on longer pedicels.) — Light dry soil, Florida to Mississippi, and northward. Sep- tember. — Stem 2° - 6° high. 9. L. spicata, Willd. Smooth; stem very leafy; leaves linear, erect the lowest very long, obtuse, 3 - 5-ribbed ; the uppermost small and bract-like heads sessile, cylindrical, 8 -12-flowered, crowded in a long cylindrical spike scales of the involucre smooth, obtuse, narrow-margined, purple. (L. resinosa, Nutt., a small form with 5-flowered heads.) — Swamps, Florida to Mississippi, and northward. August and September. — Stem rigid, 2° - 5° high. Spikes sometimes 2° - 3° long. Styles elongated. 10. L. pilosa, Willd. More or less pubescent with long scattered hairs ; stem stout ; leaves linear or linear-lanceolate, elongated, hairy ; heads in a loose simple raceme, 10-1 5-flowered ; scales of the turbinate or campanulate involu- cre glabrous, not punctate, with slight scarious margins, the exterior narrowly oblong, short, very obtuse ; the innermost linear ; achenia pubescent, nearly as long as the densely bearded (almost plumose) pappus. — Henderson County, North Carolina, Curtis. — A stout plant, with the heads 8" -10" long. 11. L. scariosa, Willd. Stem stout, pubescent ; leaves mostly pubescent, the lowest large, oblong or lanceolate, obtuse, the upper linear, acute ; heads large, 15-40-flowered, roundish, sessile or pedicelled; scales of the involucre spatulate or obovate, rounded at the apex, usually with broad and colored mar- gins ; the outer ones with spreading tips. (L. spheroidea, Michx.) — Dry light soil, Florida to Mississippi, and northward. September. — Stem 3° -6° high. Heads sometimes 1' wide. 12. L. heterophylla, Brown. Leaves lanceolate, smooth ; the upper ones linear-lanceolate and much smaller; heads about 10, roundish, spiked, crowded, 15 - 16-flowered ; scales lanceolate, with pointed spreading tips. — Geor- gia to North Carolina, not common. § 2. Root not tuberous : leaves obovate or oblong : heads few-flowered, corytnbed or panided: pappus minutely bearded. 13. L. Odoratissima, Willd. (HOUND'S TONGUE.) Stem herbaceous, smooth ; leaves smooth and often glaucous, obtuse ; the lowest spatulate-obovate, 3 - 5-ribbed, the upper oval or oblong, small, sessile ; heads 7 - 8-flowered, dis- posed in an ample spreading corymb or panicle. • — Flat pine barrens, Florida to North Carolina, and westward. September. — Stem 2° -3° high. The withering leaves exhale the odor of vanilla. COMPOSITE. (COMPOSITE FAMILY.) 193 * 14. L. paniculata, Willd. Stem viscid-pubescent ; leaves smooth ; the lowest spatulate-lanceolate, the upper lanceolate, sessile, small ; heads mostly 5- flowered, in small lateral and terminal corymbs, forming a dense oblong panicle. — Damp pine barrens, Florida to North Carolina, and westward. Sept. and Oct. — Stem 1° - 2° high. 15. L. fruticosa, Nutt. Stem shrubby, smooth ; branches naked above; leaves obovate, not ribbed, the lowest ones opposite ; heads corymbose, 5-flow- ered ; scales of the involucre lanceolate, acute, dotted. — East Florida. — Leaves 1' long. 10. KUHNIA, L. Heads 10-25-flowered. Flowers all similar and perfect. Scales of the in- volucre few and loosely imbricated in 2 - 3 rows. Receptacle naked. Corolla slender, 5-toothed. Achenium cylindrical, many-striate. Pappus a single row of strongly plumose bristles. — A perennial herb, with lanceolate or linear dotted leaves, and heads of yellowish-white flowers in panicled corymbs. 1. K. eupatorioid.es, L. Stem pubescent, or somewhat viscid, mostly branched ; leaves toothed or entire, pubescent, or smoothish beneath, the lower ones sometimes opposite ; corymbs loose or crowded. (K. Critonia, and K. glu- tinosa, Ell.) — Light and dry soil, Florida to Mississippi, and northward. Sept — Stem 2° - 4° high. 11. BBICKELLIA, Ell. Heads few- or many-flowered. Scales of the involucre linear, imbricated, the outer ones shorter. Receptacle flat, naked. Corolla 5-toothed. Achenia cylin- drical, 10-striate. Pappus a single row of bearded bristles. — Perennial herbs, with dotted opposite 3-ribbed leaves, and large heads of pale purple flowers, in terminal corymbs. 1. B. COrdifolia, Ell. Stem erect, tomentose, mostly branching; leaves ovate, serrate, mostly cordate, petioled, the upper ones often alternate ; heads large, 30 - 40-flowered ; achenia nearly smooth. — Light rich soil, "Western Geor- gia and Florida, and westward. Aug. — Stem 2° - 4° high. Flowers showy. 12. EUPATORIUM, Tourn. THOROUGHWORT. Heads 3 - many-flowered. Involucre cylindrical or bell-shaped, the scales in a single row, or imbricated in 2 - several rows. Receptacle flat, naked. Corolla 5-toothed. Achenia 5-angled, the sides smooth and even. Pappus a single row of slender rough bristles. — Perennial and mostly resinous-dotted herbs, with opposite or whorled leaves, and white or purplish flowers. § 1. Heads corymbed. * Scales of the cylindrical involucre numerous, closely imbricated in several rows, the outer ones shorter : heads few- or many-flowered : leaves chiefly opposite. 1. E. ivaefolium, L. Herbaceous; stem (3° -5°) erect, terete, rough- hairy, at length much branched ; leaves lanceolate, acute at each end, nearly 17 194 COMPOSITE. (COMPOSITE FAMILY.) sessile, 3-nerved, sparingly serrate ; corymbs dense ; heads 1 5 - 20-flowered ; scales of the involucre very obtuse, strongly striate. — Near Natchez, Mississippi, and South Florida. July - November. — Flowers blue. * * Scales of the involucre purplish, scarious, obtuse, imbricated in several rows, the outer ones much shorter : leaves whorled: flowers purplish. 2. E. purpureum, L. Smooth or pubescent; stem simple, tall, often spotted or dotted ; leaves petioled, 3-6 in a whorl, varying from lanceolate to ovate, coarsely serrate, roughish ; corymbs large, compound ; heads 5 - 10-flow- ered. — Swamps, rarely in dry woods, Florida to Mississippi, and northward. Aug. -Sept. — Stem 3° -10° high, solid or hollow, even or grooved. A vari- able species, including E. ternifolium, E. maculatum, and E. verticillatum, Ell. # * * Scales of the involucre (green or white] imbricated in 2 — 3 rows, the outer ones shorter: heads 5 - 20-flowered : leaves, achenia, - 3' long. Corolla 2' wide. GENTIANACE^E. (GENTIAN FAMILY.) 355 2. EUSTOMA, Don. Calyx bell-shaped, 4 - 5-parted, sharply 4 - 5-angled ; the lobes subulate, keeled. Corolla tubular, 4 - 5-lobed, membranaceous at the base, withering- persistent ; the lobes erect, lanceolate-oblong, acute. Stamens 4-5, partly cxserted, inserted on the middle of the tube of the corolla : anthers sagittate, introrse, opening lengthwise. Style conspicuous, erect, persistent : stigmas round-ovate, thick, at length spreading, with the margins revolute. Capsule oblong, obtuse, 1 -celled, the margins of the valves slightly inflexed. Placentae spongy, sutural. Seeds minute, globose, sessile. — Herbs, with oblong glaucous clasping leaves, and panicled showy purple or blue flowers. 1. E. exaltatum, Griseb. Stem (2° -3° high) terete, glaucous, panicu- lately forking above ; leaves mucronate, decurrent at the base, the upper ones lanceolate ; flowers long-peduncled, terminating the branches, blue ; calyx-lobes as long as the tube of the corolla, dilated and membranaceous at the base. — South Florida. © — Corolla 12" - 15" long. 3. GENTIANA, Tourn. GENTIAN. Calyx 4 - 5-parted. Corolla bell-shaped or funnel-shaped, 4 - 5-lobed, often with plaited toothed appendages between the lobes. Stamens 4-5. Stigmas 2, sessile, compressed, persistent. Capsule 1-celled, 2-valved, many-seeded; the seeds sutural, or covering the inner face of the valves. — Flowers showy, solitary or clustered, axillary and terminal. * Annual: corolla funnd-shaped, destitute of appendages : anthers versatile : capsule sessile: seeds wingless. 1. G. quinqueflora, Lam. Stem 4-angled, slender, branching; leaves ovate or ovate-lanceolate, acute, cordate and slightly clasping at the base, 3 - 5-nerved ; flowers 3-5, terminating the short branches ; corolla blue, rather slender, naked in the throat ; with ovate bristle-pointed entire lobes, much longer than the subulate calyx-lobes. — Dry soil along the mountains, Georgia, and northward. Aug. and Sept. — Stem l°-2° high. Leaves 1' long. Co- rolla 1' long. 2. G. crinita, Frcel. Stem terete below, the upper portion and branches 4-angled ; leaves lanceolate, acute, closely sessile, the lowest narrowed into a petiole ; flowers terminal, on long angular peduncles ; calyx-lobes 4, ovate- lanceolate, acute, strongly keeled, as long as the tube of the corolla ; lobes of the corolla 4, rounded, fimbriate, nearly as long as the tube ; seeds scaly. — Damp soil along the mountains, Georgia, and northward. Oct. and Nov. — Stem l°-2° high, often much branched. Leaves l'-2' long. Corolla blue, 1^'- 2' long. * * Perennial: corolla bell-shaped, with plaited toothed appendages between the lobes : anthers erect, mostly connivent: capsule pedicelled: seeds commonly winged. 3. G. OChroleuca, Frcel. Stem low, smoothish ; leaves oblong or obo- vate-oblong, narrowed at the base, the upper ones narrower and acute ; flowers in a dense mostly terminal cluster ; corolla open, yellowish-white, £ - £ longer 356 GENTIANACE^. (GENTIAN FAMILY.) than the erect linear-lanceolate calyx-lobes ; the ovate lobes twice as long as the nearly entire appendages; seeds wingless. — Dry sandy woods, Florida to North Carolina. Sept. and Oct. — Stem 6'- 12' high. Corolla l£' long, striped within with green and purple veins. Anthers separate. 4. G. Elliottii. Stem rough and slightly pubescent ; leaves lanceolate or linear-lanceolate, rough-margined; clusters axillary and terminal; calyx-lobes linear-lanceolate, twice as long as the tube ; corolla large, open, bright-blue, lined within with yellow and deeper blue, the erect or spreading ovate acute lobes twice as long as the 2-cleft fimbriate appendages ; seeds lanceolate, nar- rowly winged, covering the entire inner face of the valves. (G. Catesbsei, Ell.) — Banks of streams and ditches, in the lower and middle districts. Oct. — Stem 1° - l£° high. Corolla l£' long. Flowers rarely solitary. Var. parvifolia. Stem tall (2° high), slender; leaves short (^'-1' long), sessile, ovate or oblong-ovate, rounded or cordate at the base, rigid ; calyx-lobes erect, lanceolate, twice as long as the tube ; appendages of the corolla broad, unequally 2-cleft, fimbriate. — Pine-barren swamps near the coast, Georgia and Florida. — Corolla 2' long. Var. ? latifolia. Stem low (6' - 12' high), rigid ; leaves (2' - 3' long) mem- branaceous, oblong or ovate-oblong, acute at each end ; calyx-lobes linear, shorter than the tube, spreading ; appendages of the corolla equally divided into two slender bristle-pointed nearly entire lobes. — River-banks, Middle Florida. — Corolla I'-ltf long. 5. G. Saponaria, L. Stem smooth ; leaves ovate-lanceolate or oblong, narrowed at the base, rough-margined ; calyx-lobes linear or spatulate, acute, half as long as the corolla ; corolla light blue ; the lobes short and broad, obtuse, erect, or converging, longer than the 2-cleft minutely-toothed appendages ; seeds acute, narrowly winged, covering the valves. (G. Catesbsei, Walt.) — Moist woods on the mountains of North Carolina, and northward. Sept. and Oct. — Flowers clustered. 6. G. Andrews!!, Griseb. Stem smooth (l°-2° high); leaves ovate- lanceolate, acute, narrowed at the base ; flowers clustered, axillary and terminal ; calyx-lobes ovate, spreading, shorter than the tube; corolla (1'long) club-shaped, inflated, closed ; the broad and rounded lobes shorter than the slightly toothed appendages ; capsule at length partly exserted; seeds broadly winged. (G. Sa- ponaria, Fred.} — Mountains of North Carolina, and northward. Sept. and Oct. 7. G. angUStifolia, Michx. Stem low, smooth, 1 -flowered; leaves linear, fleshy ; calyx-lobes linear, erect, half as long as the corolla ; corolla large, bright blue, the lobes ovate, twice as long as the broad toothed appendages. — Varies with the corolla, green without and white within. — Low pine barrens, Florida to North Carolina. Nov. and Dec. — Stem 4' - 10' high. Corolla 2' long. 4. BABTONIA, Muhl. Calyx 4-parted. Corolla 4-parted. Stamens 4 : anthers small. Stigmas sessile. Capsule 1-celled, 2-valved, septicidal. Seeds covering the inner surface GENTIANACE^E. (GENTIAN FAMILY.) 357 of the valves. — Small annual herbs, with erect filiform stems, scale-like subulate leaves, and white flowers. 1. B. verna, Muhl. Stem (2' -6' high) simple or sparingly branched, suc- culent* few-flowered ; calyx-lobes lanceolate-subulate, one third as long as the oblong or obovate obtuse spreading white lobes of the corolla ; anthers oblong ; capsule roundish. (Centaurella verna, Michx.) — Damp pine barrens near the coast, Florida to North Carolina. Feb. - April. 2. B. tenella, Muhl. Stem (6' -12' high) branched; the branches, like the leaves, opposite or alternate, many-flowered ; calyx-lobes subulate, as long as the tube of the greenish-white corolla ; lobes of the corolla erect, acute ; anthers globose ; capsule oblong-lanceolate. (Centaurella paniculata, Michx.) — Swamps, Florida to Mississippi, and northward. Sept. and Oct. — Flowers much smaller than in No. I. 5. OBOLARIA, L. Calyx of 2 spatulate bract-like sepals. Corolla bell-shaped, 4-cleft, imbricated in the bud. Stamens 4 : anthers round-cordate. Style short : stigma 2-lipped. Capsule ovoid, 1-celled. Seeds numerous, covering the valves. — A low spar- ingly branched perennial herb, with opposite wedge-obovate leaves, and single or clustered axillary and terminal purplish flowers. 1. O. Virginica, L. — - Rich shady woods, South Carolina, and northward. March and April. — Plant smooth, purplish, 3' -8' high. Branches generally 3-flowered. * 6. FRASEBA, Walt. AMERICAN COLTTMBO. Calyx 4-parted. Corolla wheel-shaped, 4-parted, the lobes each with a de- pressed fringed gland on the upper face. Stamens 4 : anthers nodding. Style persistent : stigmas spreading. Capsule compressed. Seeds few, large, winged, borne on the margins of the valves. — Tall and smooth perennial herbs, with whorled or opposite sessile leaves and branches, and cymes of greenish-yellow flowers, disposed in a large terminal panicle. 1. P. Carolinensis, Walt. Stem (3° - 8° high) erect ; leaves and branches mostly four in a whorl, lance-oblong, the lowest spptulate ; panicle pyramidal ; corolla-lobes oblong, mucronate, dotted with purple. — Rich soil in the upper districts of Georgia, and northward. July. — Lowest leaves 1° long. Corolla 1' wide. Root large and bitter to the taste. 7. LIMNANTHEMTJM, Gmel. Calyx 5-parted. Corolla wheel-shaped, 5-parted, the lobes infolded in the bud, ciliate, and glandular-crested at the base. Stamens 5. Style short or none : stigma 2-lobed, persistent. Capsule 1 -celled, opening irregularly. • Seeds few or many. Testa woody. — Perennial aquatic herbs, with floating circular or cor- date spongy leave«. and white peduncled flowers clustered near the summit of the long petiole. 358 APOCYNACE^E. (DOGBANE FAMILY.) 1. L. lacunosum, Griseb. Leaves (l'-2'wide) cordate, entire, smooth; petioles (6' -12' long) filiform ; seeds smooth. (Villarsia cordata, Ell.) — Shal- low pondsy Florida, and northward. June and July. 2. L. trachyspermum, Gray. Leaves (3' -5' wide) circular, crenate, rough and pitted beneath 5 petioles stout, dotted, elongated ; seeds glandular- roughened. (Villarsia trachysperma, Ell.) — Ponds in deep water, Florida to North Carolina, and westward. April- June. ORDER 102. APOCYNACE-3E. (DOGBANE FAMILY.) Herbs or shrubs, with acrid milky juice, mostly opposite entire exstipu- late leaves, and regular cymose or panicled flowers. — Calyx free, 5-parted, imbricated in the bud, persistent. Corolla bell-shaped, funnel-shaped, or salver-form, 5-lobed, convolute in the bud. Stamens 5, distinct, inserted on the tube of the corolla : anthers mostly sagittate, erect, introrse. Pol- len granular. Ovaries 2, distinct, their styles united. Fruit few - many- seeded. Seeds anatropous or amphitropous, naked, or bearing a tuft of down at the apex (comose). Embryo straight in scarce albumen.- Synopsis. * Fruit a many -seeded follicle. 4- Seeds comose. Leaves opposite. 1. APOCYNUM. Corolla bell-shaped, with scale-like appendages at the base of the lobes. Herbs. 2. FORSTERONIA. Corolla funnel-shaped. Stamens inserted at the base of* the corolla. Twining shrubs. 3. ECHITES. Corolla funnel- or salver-shaped. Stamens inserted above the base of the corolla. H- t- Seeds naked. Leaves opposite or alternate. 4. AMSONIA. Corolla funnel-shaped. Flowers panicled. Leaves alternate. 5. VINCA. Corolla salver-shaped. Flowers axillary. Leaves opposite. * # Fruit a few-seeded drupe. 6. VALLESIA. Corolla salver-shaped. Leaves alternate. Flowers in cymes. f 1. APOCYNUM, Tourn. INDIAN HEMP. Calyx 5-parted. Corolla bell-shaped, 5-lobed, with scale-like appendages at the base of the lobes. Stamens inserted on the base of the corolla : anthers sagittate. Stigma sessile, 2-lobed. Follicles long and slender. Seeds numer- ous, obovoid, comose. — Perennial erect branching herbs, with opposite oval or oblong mucronate petioled leaves, and small white flowers in lateral and termi- nal cymes. 1. A. cannabinum, L. Stem smooth, with erect branches ; leaves oval or oblong, mucronate, pubescent beneath ; cymes terminal, close-flowered, shorter than the leaves ; calyx-lobes lanceolate, as long as the tube of the greenish-white corolla; lobes of the corolla erect. (A. pubescens, R. Br.) — Var. GLABEKRI- \ APOCYNACE^E. (DOGBANE FAMILY.) 359 MUM. Smooth throughout; leaves narrower, often acute at each end. — Dry or damp soil, Florida, and northward. July and Aug. — Stem 2° - 3° high. Leaves 2' - 3' long. Corolla 2" long. 2. A. androssemifolium, L. Stem smooth, with spreading branches ; leaves oval or ovate, smooth, or pubescent beneath ; cymes axillary and termi- nal, long-peduncled, commonly exceeding the leaves, loose-flowered ; calyx-lobes ovate, shorter than the tube of the white or pale rose-colored corolla ; lobes of the corolla spreading or revolute. — Rich soil, North Carolina, and northward. June and July. — Stem 2'-3f high. Corolla twice as large as in No. 1. 2. FORSTERONIA, Meyer. Calyx 5-parted, mostly glandular at the base within. Corolla funnel-shaped, 5-cleft, without appendages. Filaments slender, inserted on the base of the corolla : anthers linear-sagittate. Nectary of 5 distinct or partly united thickish glands. Stigma simple or 2-lobed, 5-angled. Follicle slender. Seeds linear- oblong, comose. — Twining shrubs, with opposite petioled leaves, and small flowers in lateral and terminal cymes. 1. IP. diffbrmis, A. DC. Leaves ovate-lanceolate, lanceolate or linear, acuminate, narrowed into a petiole, smooth, or, like the branchlets, pubescent when young ; cymes spreading, as long as the leaves ; flowers greenish. (Echi- tes difformis, Walt.) — River-banks, Florida to North Carolina. May -Aug. — Stem twining, 10°- 15° high. Leaves 2' -3' long. Corolla 4" long. Follicles 6' -9' long. 3. ECHITES, P. BROWNE. Calyx 5-parted, with 3-5 glands at the base within. Corolla salver- or funnel-shaped, 5-lobed ; the tube mostly elongated, and dilated above the in- sertion of the stamens. Filaments very short : anthers sagittate, bearing the pollen, and adhering to the stigma in the middle. Nectary of 5 distinct or partly united glands. Style simple : stigma thick, with a spreading membra- nous appendage at the base. Follicles long and slender. Seeds linear-oblong, comose or plumose. — Erect or twining shrubs, with opposite leaves, and cy- mose axillary and terminal mostly fragrant flowers. 1. E. umbellata, Jacq. Smooth; stem twining; leaves distant, oval, mucronate, slightly cordate, short-petioled, parellel-veined ; peduncles shorter than the leaves, 3 - 7-flowered ; calyx-lobes ovate, acuminate ; corolla salver- form, the cylindrical tube (2' long) slightly dilated above the insertion of the stamens, four times as long as the rounded spreading lobes, pubescent within ; anthers awnless ; stamens inserted near the middle of the tube. — South Florida. — Leaves 1^'- 2' long, recurved and folded. Flowers white ? 2. E. Andrews!!. Smooth ; stem low, erect or twining ; leaves approx- imate, oval or oblong, mucronate, acute or rounded at the base, the margins revolute ; peduncles axillary, 3 - 5-flowered, shorter than the leaves ; calyx- lobes lanceolate-subulate ; tube of the corolla much,. dilated above the insertion 360 APOCYNACEJE. (DOGBANE FAMILY.) of the stamens, bell-shaped, scarcely longer than the ovate spreading lobes ; anthers tapering into a long bristle-like awn ; glands of the nectary 5, rounded, as long as the ovaries. (E. suberecta, Andr. Neriandra suberecta, A. DC.) — Sandy shores, South Florida. — Stem 1° - 2° high. Leaves l£'- 2' long. Tube of the corolla 1' long, £' wide. 4. AMSONIA, Walt. Calyx small, 5-parted. Corolla funnel-form, 5-lobed, bearded within. Sta- mens inserted above the middle of the tube : anthers oblong, obtuse. Stigma globose, surrounded by a cup-shaped membrane. Follicles slender. Seeds in a single row, terete, truncated at each end, naked. — Erect branching perennial herbs, with alternate leaves, and small pale blue flowers in a terminal panicle. 1. A. Tabernsemontana, Walt. Stem smooth, branching above ; leaves ovate, ovate-lanceolate, or lanceolate, acute or acuminate at each end, glaucous beneath, short-petioled ; tube of the corolla slender, smooth, or woolly above, many times longer than th« minute calyx ; follicles spreading. (A. latifolia, Michx. A. salicifolia, Pursh.) — Swamps and wet banks, Florida to Mississippi, and northward. May and June. — Stem 2° high. Leaves l'-4; long, often slightly pubescent beneath. Panicle open or contracted. Follicles 4' - 6' long. 2. A. ciliata, Walt. Stem hairy, at length much branched above ; leaves very numerous, linear or linear-lanceolate, acute at each end, fringed on the margins ; corolla smooth. — Dry sandy soil, Florida to North Carolina. April and May. — Stem at length 2° -3° high. Leaves l'-2' long. Corolla pale blue or white. Follicles more slender than those of the preceding. 5. VINCA, L. PERIWINKLE. Calyx 5-parted. Corolla salver-form, 5-lobed, thickened or angular at the throat, the narrow tube hairy within. Anthers oblong, longer than the filaments. Glands 2, alternating with the ovaries. Style slender : stigma thick, with an inverted cup-shaped membrane at the base. Follicles 2, linear, erect. Seeds oblong, rough, naked. — Herbs or shrubby plants, with opposite short-petioled leaves, and axillary mostly solitary showy flowers. 1. V. rosea, L. Shrubby, pubescent; stem erect, branching; leaves ob- long, rounded at the apex, mucronate ; flowers solitary or by pairs, nearly sessile ; lobes of the corolla white or pale rose-color, obliquely obovate, mucro- nate, shorter than the downy tube ; a row of hairs at the throat and another on the tube below. — South Florida, and in the streets of Apalachicola, probably introduced. Flowering through the summer. 6. VALLESIA, Euiz and Pavon. Calyx 5-parted. Corolla salver-shaped, 5-lobed. Stamens inserted on the throat of the corolla : anthers cordate-ovate, longer than the slender filaments. Nectary none. Ovaries 4-evuled. Stigma club-shaped. Drupe mostly solitary, ASCLEPIADACE^E. (MILKWEED FAMILY.) 361 obovoid, 1 - 2-seeded. Seeds naked, club-shaped, furrowed. Radicle thick, inferior. — Shrubs. Leaves alternate. Cymes long-peduncled, opposite the leaves. 1 • V. chiOGOCCOides, Kunth. Smooth ; leaves lanceolate-oblong, acute at each end, short-petioled ; cymes forking, spreading, as long as the leaves, many -flowered ; lobes of the corolla linear, shorter than the tube, hairy within ; style slender ; stigma 2-lobed, globose below the apex. — South Florida. — Leaves l£'- 2' long. Corolla 3" long. Drupe 4" long, 1 -seeded. ORDER 103. ASCJLEPIADACEJE. (MILKWEED FAMILY.) Erect or twining herbs or shrubs, with milky juice, entire commonly opposite leaves without stipules, and umbellate or cymose flowers. — Ca- lyx 5-parted, persistent. Corolla 5-parted, mostly valvate in the bud, hypogynous, deciduous. Stamens 5, inserted on the base of the corolla, the filaments united in a tube (gynostegium) which encloses the ovaries, and bears appendages of various forms, which are collectively termed the stamineal crown. Anthers erect, 2 - 4-celled, expanding above into a thin membrane. Pollen united in flattened waxy pear-shaped masses, which are equal in number to the cells of the anthers, and fixed to the five an- gular processes of the stigma by a slender stalk, pendulous or horizontal. Styles 2, the thick and fleshy stigma common to both. Fruit a follicle. Seeds anatropous, imbricated on the thick and at length free placenta, and commonly bearing at the hilum a tuft of hairs (coma). Embryo straight in thin albumen. Cotyledons leafy. Synopsis. TRIBE I. ASCLEPI ADEJE. — Pollen-masses 10, fixed by pairs to the cleft processes of the flat or conical stigma, pendulous. # Stamineal crown single, 5-leaved. •«- Lobea of the corolla reflexed or spreading. 1. ASCLEPIAS. Leaves of the crown enclosing a horn-like appendage. 2. ACERATES. Leaves of the crown without appendages. 4- t- Lobes of the corolla erect. 3. PODOSTIGMA. Stigma long-pedicel led. Corolla smooth, wavy. Stem erect. 4- METASTELMA. Stigma sessile or pedicelled. Corolla downy within. Stems twining. * * Stamineal crown single, 5-lobed. 5 SEUTERA. Stigma conical. Crown deeply 6-parted. 6. CYNOCTONUM. Stigma flat. Crown crenately 5 lobed. * * * Stamineal crown double. 7- SARCOSTEMMA. Outer crown annular ; the inner one 6-leaved. TEIBE n. GONOLOBE-flE. — Pollen-masses 10, fixed by pairs at the angles of the depressed stigma, horizontal. 8. GONOLOBUS. Crown simple, annular. Stems twining. Leaves cordate. 31 362 ASCLEPIADACEJE. (MILKWEED FAMILY.) 1. ASCLEPIAS, L. MILKWEED. SILKWEED. Calyx 5-parted. Corolla wheel-shaped, deeply 5-parted, reflexed. Crown composed of 5 hooded leaves, each containing an incurved horn-like appendage. Pollen-masses 10, by pairs, each pair occupying the contiguous cells of adjacent anthers, and suspended by a slender stalk from the projecting angles of the stigma. Follicle many-seeded. Seeds obovate, flat, usually comose. — Perennial herbs, with mostly simple (not twining) stems, and opposite alternate or whorled leaves. Flowers in lateral (between the leaves) and terminal umbels. § 1. Stems herbaceous : seeds comose. * Follicles spiny : leaves opposite. 1. A. Cornuti, Decaisne. Softly pubescent ; stem stout, erect, obscurely 4-angled ; leaves oval-oblong, short-petioled, mucronate, soon smooth above, the lowest somewhat cordate ; umbels numerous, many-flowered, long-peduncled ; corolla greenish-purple, one fourth as long as the pedicels ; leaves of the crown pale purple, ovate, obtuse, longer than the incurved horn ; follicle ovate-oblong, woolly, armed with soft spines. (A. Syriaca, L.) — Fields and road-sides, New Berne, North Carolina, Groom, and northward. June and July. — Stem 3° - 4° high, sometimes branched. Leaves 4' - 8' long. Pedicels 1' - \^( long, purplish. Corolla £' wide. =fc * Follicles spineless. •*- Leaves opposite, oval or oblong, narrowed into a petiole. 2. A. phytolaccoides, Pursh. Stem tall, smooth; leaves ovate or ovate-lanceolate, tapering at each end, paler and minutely pubescent beneath, membranaceous ; umbels long-peduncled, many-flowered; pedicels filiform, drooping, nearly as long as the peduncle ; corolla pale greenish ; leaves of the crown white, truncated, 2-toothed, shorter than the subulate incurved horn. — Low grounds along the mountains, and northward. June and July. — Stem 3° - 5° high. Leaves 6' - 9' long. Pedicels 2' - 3' long. 3. A. purpurascens, L. Stem smooth ; leaves ovate-oblong, acute, short-petioled, paler and pubescent beneath ; umbels 1-2, terminal, peduncled, many-flowered ; pedicels half as long as the peduncle, and twice as long as the dark purple corolla ; leaves of the crown oblong, abruptly contracted above, twice as long as the incurved horn and nearly sessile gynostegium. — Thickets and borders of woods, Tennessee, North Carolina, and northward. June and July. — Stem 2° -3° high. Leaves 4' -7' long. Pedicels 9" -15" long, pu- bescent. 4. A. variegata, L. Stem stout, leafless below, pubescent in lines ; leaves oval, oblong, or obovate, cuspidate, smooth on both sides ; umbels 3-5, pubes- cent, closely flowered, the upper ones corymbose ; pedicels erect, as long as the peduncle ; corolla white ; leaves of the crown roundish, longer than the purplish gynostegium, equalling the thick awl-pointed incurved horn. (A. nivea, Pursh.) — Dry open woods and borders of fields, Florida1 to Mississippi, and northward. May and June. — Stem 2° - 3° high, purplish. Leaves rather thick, 2' - 3' long. Peduncles 9" - 12" long. ASCLEPIADACE^E. (MILKWEED FAMILY.) 363 5. A. incarnata, L., var. pulchra. Hairy; stem erect, branching; leaves oblong or oblong-lanceolate, acute, nearly sessile; umbels numerous, somewhat corymbose, long-peduncled, often compound; pedicels erect, much shorter than the peduncle ; corolla small, reddish-purple ; leaves of the cro\vn flesh-color, ovate, as long as the slender incurved horns, and twice as long as the short-stalked gynostegium. (A. pulchra, Willd,} — Swamps in the upper dis- tricts, Georgia, and northward. June and July. — Stem 3° - 4° high. Leaves 4' - 6' long. 6. A. tomentosa, Ell. . Pubescent or villous ; stem stout, very leafy ; leaves oblong or oblong-lanceolate, cuspidate, undulate, somewhat hoary beneath, abruptly short-petioled ; umbels 4-10, alternate, nearly sessile, many-flowered ; pedicels three times as long as the large greenish corolla ; leaves of the crown obovate, truncated, shorter than the gynostegium and the broad abruptly pointed erect horn. (A. aceratoides, M. A. Curtis.} — Dry sandy pine barrens, Florida to North Carolina. June and July. — Stem l°-4° high. Leaves 2' -3' long, thick, on rather slender petioles. Pedicels 1' long. Corolla £' wide. Follicles lanceolate, tomentose, 4' - 6' long. 7. A. obovata, Ell. Tomentose ;~ stem stout, very leafy; leaves thick, oblong-oval or obovate, cuspidate, undulate ; the midrib, like the short (2" long) petiole, very thick and prominent ; umbels nearly sessile, closely 10 - 14-flowered ; the stout pedicels barely twice as long as the large yellowish-green corolla ; leaves of the crown purplish, twice as long as the gynostegium, and equalling the incurved horn ; follicle tomentose. — Dry gravelly or sandy soil, Georgia, Florida, and westward. June and July. — Stem l°-2° high. Leaves and flowers as large as those of the preceding. -t- •(- Leaves opposite, lanceolate or linear, narrowed into a petiole. 8. A. cinerea, Walt. Stems erect, slender, pubescent in lines ; leaves long, narrowly linear, distant, spreading; umbels 3-6, commonly longer than the leaves, 5 - 7-flowered, the slender drooping pedicels longer than the peduncle ; flowers small, purple without, ash-color within ; leaves of the crown obliquely truncated, 2-toothed at the inner angle, shorter than the gynostegium, longer than the thick horn ; follicle smooth, linear. — Flat sandy pine barrens, Florida to South Carolina. June -Aug. — Stem l°-2° high. Leaves 2' -3' long, I" wide, somewhat glaucous; the uppermost often minute. Corolla 3" -4" wide. Follicle 3' -4' long. ^ 9. A. viridula, n. sp. Stem slender, pubescent in lines ; leaves linear, erect; umbels shorter than the leaves, 6-12-flowered, the erect or spreading pedicels as long as the peduncle ; corolla small, yellowish-green ; leaves of the crown oblong, spreading at the apex, rather longer than the erect subulate horn, and twice as long as the gynostegium ; follicle smooth, linear. — Pine-barren swamps, West Florida. June and July. — Stem 10' - 15' high. Leaves 2' long. Corolla 3" wide. Follicle 3' long. 10. A. paupercula, Michx. Stem smooth, tall; leaves elongated, linear or linear-lanceolate, acuminate, rough-margined, the upper ones small and re- mote; umbels 2-5, corymbose, 6 - 10-flowered ; pedicels pubescent, about as 364 ASCLEPIADACE^E. (MILKWEED FAMILY.) long as the peduncle ; corolla deep red ; leaves of the crown oblong, erect, bright orange, more than twice as long as the subulate incurved horn and the short-stalked gynostegium ; follicle lanceolate, minutely pubescent. — Marshes, Florida, and northward. June and July. — Stem 2°- 4° high. Leaves 6' - 12' long. Corolla 3" - 4" long. 11. A. Curassavica, L. Stem somewhat shrubby, branching, slightly pubescent, leafy to the summit ; leaves thin, lanceolate, acuminate, smooth ; umbels corymbose, long-peduncled, 8-10-flowered, pubescent; pedicels much shorter than the peduncle ; corolla scarlet ; leaves of the crown bright orange, oblong, erect, longer than the stalked gynostegium, shorter than the thick in- curved horn ; follicle ovate-lanceolate, velvety. — South Florida. April - Nov. — Stem 1° - 2° high. Leaves 3' -4' long. Corolla 3" long. -«-•»- H- Leaves opposite, ovate or oblong, more or less cordate, nearly sessile. 12. A. rubra, L. Smooth; stem simple, naked at the summit; leaves ovate or ovate-lanceolate, acuminate, rounded or slightly cordate at the base,- very short-petioled ; umbels 1-3, terminal, sessile, few-flowered ; lobes of the corolla lanceolate, acute, reddish-purple ; leaves of the crown oblong, acute, purplish, barely longer than the subulate incurved, horn, and twice as long as the- short-stalked gynostegium; follicle smooth. (A. laurifolia, Michx.) — Wet pine barrens, Georgia, and northward. June- July. — Stem 2° -4° high. Leaves 2' - 4' long. 13. A. obtusifolia, Michx. Smooth and somewhat glaucous ; stem erect; leaves oblong, undulate, mucronate, cordate and partly clasping at the base ; umbels 1-3, lateral and terminal, long-peduncled, many-flowered ; corolla greenish-purple ; leaves of the crown truncated and somewhat toothed at the apex, rather longer than the gynostegium, much shorter than the subulate incurved horn; follicle smooth. — Sandy soil, Florida, and northward. June- July. — Stem 2° - 3° high. Leaves 2' - 3' long, the midrib very broad. Corolla- lobes 3" long. Pedicels pubescent 14. A. amplexicaulis, Michx. Smooth and glaucous ; stem declining, very leafy ; leaves large, fleshy, ovate, obtuse, cordate and clasping at the base, veined with white ; umbels 3-6, lateral and terminal, many-flowered, the smooth and slender pedicels shorter than the peduncle ; corolla ash-color ; leaves of the crown oval, obtuse, white, longer than the gynostegium, and the nearly straight horn. — Dry sandy pine barrens, Florida to North Carolina. April and May, — Stems several, l°-2° long. Leaves 4' -5' long, the midrib broad and prominent. -v- H- -i- -t- Upper and lower leaves mostly opposite, the middle ones whorled. 15. A. quadrifolia, Jacq. Somewhat pubescent; stem slender, simple ; leaves thin, ovate or ovate-lanceolate, acuminate, contracted into a petiole, pale beneath; umbels 2-5, many-flowered, the slender peduncle longer than the pedicels ; corolla pale-pink ; leaves of the crown white, oblong, obtuse, twice as long as the gynostegium and stout horn. — Mountains of Carolina, and north- ward. June - Aug. — Stem 1 ° - 1 £° high. Leaves 2' - 3' long. ASCLEPIADACE^l. (MILKWEED FAMILY.) 365 16. A. verticillata, L. Stem slender, branching, pubescent ; leaves narrowly linear, with the margins revolute, 4-5 in a whorl ; umbels several, small, the peduncle and pedicels nearly equal ; corolla greenish ; leaves of the crown white, roundish, half as long as the slender incurved horn. — Open woods and fence-rows, Florida, and northward. July - Sept. — Stem 2° - 3° high. Leaves 1 ' - 2' long. Follicle smooth. •t- •(- •(--<-•»- Leaves alternate, or the lowest opposite. 17. A. tuber osa, L. Hirsute; stem erect or declining, widely branched above, very leafy ; leaves varying from linear to oblong, acute, short-petioled ; umbels numerous, corymbose ; corolla yellowish-orange ; leaves of the crown bright orange, erect, oblong-lanceolate, twice as long as the gynostegium, and rather longer than the slender incurved horn. — Light dry soil, common. June and July. — Stem 1° -2° long. 18. A. Michauxii, Decaisne. Pubescent ; stems several, short, prostrate ; leaves linear, erect, the lower ones mostly opposite ; umbels 1-3, terminal, sessile or peduncled ; flowers gray and purple ; leaves of the crown ovate, spreading, as long as the subulate horns, and longer than the gynostegium; follicle long, linear-lanceolate, tomentose. (A. angustifolia, Ell., Michx. in part.) — Low sandy pine barrens, Florida to South Carolina. April - May. — Stems 6'- 12' long. Leaves 3'- 4' long. Follicle 4' -5' long. Flowers fragrant. § 2. Stem shrubby : seeds mostly naked. 19. A. perennis, Walt. Stem branched, pubescent in lines, shrubby at the base ; leaves thin, lanceolate or oblong-lanceolate, tapering at each end, paler beneath; umbels 5-7, long-peduncled, pubescent, the upper ones corym- bose ; corolla small, white ; leaves of the crown spreading, half as long as the needle-shaped, erect horn ; follicle ovate-lanceolate, smooth. (A. parviflora, Pursh. A. debilis, Michx.) — Muddy banks of rivers, Florida to South Caro- lina. June -Aug. — Stem 1° - 2° high. Leaves 2' - 4' long. 2. ACERATES, Ell. Leaves of the crown destitute of a horn-like appendage. Otherwise like Asclepias. * Leaves opposite. 1. A. viridiflora, Ell. Pubescent; stem stout, simple; leaves varying from oval or obovate to lanceolate, acute, obtuse, or emarginate, undulate, short- petioled; umbels lateral and terminal, nearly sessile, densely many-flowered; flowers small, greenish ; leaves of the crown oblong, erect, as long as the sessile gynostegium. — Dry sterile soil, Florida, and northward. June and July. — Stem 1°- 1|° high. Leaves l£'- 2$' long. 2. A. connivens, Decaisne. Stem stout, simple, pubescent above ; .eaves nearly sessile, erect, mucronate, the lower ones approximate, oblong or oblong- obovate, the upper more distant, smaller and lanceolate ; umbels 3-6, 6-9- flowered, the stout peduncle and pedicels nearly equal, pubescent ; flowers large, greenish ; leaves of the crown oblong, incurved, twice as long as the gynoste- 31* t 366 ASCLEPIADAC'E^E. (MILKWEED FAMILY.) gium, with their rounded summits connivent over it. — "Wet pine barrens, Florida and Georgia. June and July. — Stem 1° - 2° high. Leaves 1' - 2' long, some- what fleshy. Corolla 8" - 1 0" wide. * * Leaves alternate. 3. A. paniculata, Decaisne. Closely pubescent ; stem angular, often branching ; leaves oblong or lance-oblong, acute or obtuse at each end, short- petioled ; umbels corymbose, often compound ; corolla large, greenish, spread- ing or nearly erect ; leaves of the crown oblong, obtuse, ascending, shorter than the nearly sessile gynostegium. (Podostigma viridis, Ell.) — Dry pine barrens, Florida to South Carolina. July. — Stem 1° - l£° high, leafy to the summit. Leaves 3'- 4' long. Corolla 1' wide. 4. A. longifolia, Ell. Pubescent ; stem terete ; leaves linear and linear- lanceolate, acute at each end, slightly petioled, rough-margined, the lowest com- monly opposite, sometimes whorled ; umbels pubescent, slender-peduncled, many-flowered, alternate, opposite or whorled ; flowers small, pale purple ; corolla reflexed ; leaves of the crown deep purple, oval, shorter than the gy- nostegium, and adnate to its stalk ; follicle lanceolate, tomentose. (Asclepias angustifolia, Michx. in part.) — Low pine barrens, Florida, and northward. July. — Stem 1° - 1|° high. Leaves 3' - 6' long. Corolla 4" wide. 3. PODOSTIGMA, Ell. Calyx 5-parted. Corolla 5-parted, with the lobes erect. Leaves of the crown destitute of a horn, ascending, incurved-beaked at the apex, united with the base of the long and slender gynostegium. Stigma small, depressed. Seeds comose. — A low pubescent simple-stemmed perennial herb, with opposite lanceolate sessile leaves, and few-flowered umbels on lateral peduncles. 1. P. pubescens, Ell. — Low pine barrens, Florida to North Carolina. June -Oct. — Root tuberous. Stem 6' -12' high. Leaves erect, l'-2' long. Umbels of 4 - 6 orange-colored flowers. Corolla 4" - 5" long, as long as the pedicel, longer than the short peduncle, the oblong lobes wavy on the margins. Follicles linear-lanceolate, tomentose, 4' - 6' long, many-seeded. Seeds oval, winged. 4. METASTELMA, K. Brown. Calyx 5-parted. Corolla bell-shaped, the lobes mostly hoary-pubescent within Crown 5-leaved, inserted on the base or on the summit of the gynostegium. Stigma flat. Follicles slender, smooth. Seeds comose. — Twining shrubs, with smooth leaves. Umbels few-flowered. Flowers small, white. 1. M. Schlectendalii, Decaisne. Branches pubescent ; leaves oblong or obovate, cuspidate, rather acute at the base, on slender petioles ; peduncles 3 - 6-flowered, as long as the petiole, shorter than the pedicels ; sepals obtuse, ciliate ; Iobes«bf the corolla ovate-lanceolate, incurved, densely pubescent within ; leaves of the crown oblong, inserted on the summit of the slender gynostegium, as long as the stigma. — South Florida. — Leaves £'- 1|' long, the margins rev- olute. Corolla 2" long. Gynostegium 5-winged at the base. ASCLEPIADACE^E. (MILKWEED FAMILY.) 367 2. M. parviflorum, B. Brown. Herbaceous ? stem very slender, pubes- cent in lines ; leaves smooth, linear-lanceolate, falcate, acuminate, rounded at the base, short-petioled, drooping ; umbels sessile or short-peduncled, 4 - 6-flowered ; sepals smooth, acute ; lobes of the corolla linear, incurved at the apex, very pubescent within ; leaves of the crown inserted on the base of the sessile gynos- tcgium, linear, erect, exceeding the stigma. — South Florida. — Leaves 6'' -8" long. Corolla 1" long. 3. M. Fraseri, Decaisne. Branches slender, pubescent in lines ; leaves oval or round-ovate, mucronate ; umbels sessile ; pedicels short, smooth ; lobes of the corolla ovate, acute, thickiih, pubescent on the margins ; leaves of the crown linear, as long as the corolla, longer than the gynostegium. — In Caro- lina, Fraser. ( * ) 5. SEUTEEA, Beich. Calyx 5-parted. Corolla somewhat wheel-shaped, 5-parted, with narrow acute smooth lobes. Crown simple, deeply 5-parted, inserted on the base of the sessile gynostegium ; the lobes ovate, flattened. Stigma conical, longer than the anthers. Follicles smooth. Seeds comose. — A slender partly shrubby twining vine, with fleshy linear drooping leaves, and long-peduncled umbels of greenish flowers. 1. S. maritima, Decaisne. (Lyonia, Ell.) — Salt marshes, Florida to North Carolina. July and Aug. — Stem shrubby at the base ; the branches twining around rushes and saline grasses. Leaves 2' long. Peduncles com- monly longer than the leaves, many-flowered. Lobes of the corolla lanceolate, imbricated in the bud. Lobes of the crown obtuse, as long as the stigma. 6. CYNOCTONUM, Meyer. Calyx 5-parted. Corolla wheel-shaped, 5-parted. Stamineal crown simple, enclosing the base of the sessile gynostegium, 5-lobed or 5-crenate. Anthers membranaceous at the apex. Stigma flattish. Follicles linear, spreading or reflexed. Seeds comose. — Perennial or shrubby twining plants. Leaves mostly cordate. Umbels lateral. 1. C. ? SCOparium. Stems much branched, pubescent in lines, shrubby at the base ; leaves thin, linear, cuspidate, tapering into a petiole, smoothish ; um- bels nearly sessile, few-flowered, shorter than the leaves ; calyx-lobes ovate, obtuse, pubescent like the pedicels ; corolla smooth, the spreading lobes lanceo- late, obtuse ; crown crenately 5-lobed, shorter than the gynostegium ; follicles very slender, widely spreading ; seeds linear, wingless. (Cynanchum scoparium, Nutt.) — Dry rich soil, near the coast, West Florida to Key West. — Leaves £'- 1' long. Flowers green, less than a line long. Follicles 1' long. 7. SARCOSTEMMA, B. Brown. Calyx 5-parted. Corolla wheel-shaped, 5-parted. Crown double ; the exte- rior forming a ring at the base of the corolla; the interior longer, 5-leaved Stigma pointed, notched. Follicles slender, smooth. Seeds comose. — Erect or 368 OLEACE^E. (OLIVE FAMILY.} twining shrubs. Leaves often cordate. Flowers yellow or white, in lateral umbels. 1 . S. crassifolium, Decaisne. Stem smooth and twining ; leaves nearly sessile, oblong, mucronate, rounded at the base ; peduncles stout, 8 - 12-flowered, 2-3 times as long as the leaves and pedicels ; lobes of the corolla ovate, obtuse, spreading ; the outer surface, like the calyx and pedicels, pubescent ; leaves of the inner crown oval, rather exceeding the stigma and anthers. — South Florida. — Leaves somewhat fleshy, 9"- 12" long. Corolla 3" wide. Ovary villous. 8. GONOLOBUS, Michx. Calyx 5-parted, spreading. Corolla wheel-shaped, 5-parted, the lobes spread- ing, twisted in the bud. Crown a wavy-lobed ring at the throat of the corolla. Gynostegium flattened, depressed. Anthers opening transversely. Pollen- masses horizontal. Follicles inflated, angled, and often armed with soft spines. Seeds comose. — Twining herbs, with opposite petiolate cordate leaves, and yel- lowish or purplish flowers, in lateral corymbs or umbels. 1. G. macrophyllus, Michx. Hairy; leaves oblong-ovate, cordate, abruptly acuminate ; umbels peduncled, several-flowered ; pedicels spreading, unequal, shorter than the petioles ; corolla dull-purplish, conical in the bud ; the lanceolate obtuse lobes more or less pubescent within, green at the apex ; folli- cle strongly ribbed. — Low thickets, Florida, and northward. July and Aug. — Leaves,2'-6' long. 2. G. hirsutllS, Michx. Hirsute ; leaves round-ovate, cordate, abruptly acute ; umbels about as long as the petioles ; corolla yellowish-green, ovate in the bud, the ovate obtuse lobes pubescent without ; follicles armed with soft spines. — Light rich soil, Florida, and northward. — Leaves 4' -6' long. 3. G. prostratllS, Baldw. Stem dividing at the base into many divari- cate branches, 6'- 12' long, hairy; lower leaves often reniform, the upper cordate, generally acute, all slightly hairy on both sides, and ciliate ; umbels axillary, 3-flowered ; flowers small, purplish ; petals ovate, obtuse ; follicles oval, smooth. — Sand-hills near the Altamaha River, Georgia, Baldwin. ( * ) ORDER 104. OL.EACE.flE. (OLIVE FAMILY.) Trees or shrubs, with opposite entire or pinnate exstipulate leaves, and perfect polygamous or dioecious flowers. — Calyx 4-toothed. Corolla 4-lobed or 4-petalous, valvate in the bud, sometimes wanting. Stamens 2-7. Ovary 2-celled, with 2 suspended anatropous ovules in each cell. Style single or none. Fruit 1 - 2-seeded. Embryo straight, in hard albumen. Synopsis. TRIBE I. OLEINE^E. Fruit a drupe or berry. Flowers with both calyx and corolla. Leaves simple, entire. 1. OLEA. Flowers polygamous. Corolla salver-shaped, with short lobes. 2. CHIONANTHUS. Flowers perfect. Corolla wheel-shaped, with elongated lobes. OLEACEJE. (OLIVE FAMILY.) 369 TRIBE II. FRAXINEJE. Fruit a samara. Flowers dioecious, apetalous. Leaves pinnate. 3. FRAX1NUS. Flowers in lateral and tenrinal panicles. Calyx minute or rarely want- ing. Trees. TRIBE III. FORESTIERE.32. Fruit a drupe. Flowers dioecious or perfect, apeta- lous. Leaves simple. 4. F011ESTIERA. Flowers mostly dioecious, from scaly axillary buds. Shrubs. 1. OLEA, Tourn. OLIVE. Calyx 4-toothed. Corolla short-salver-form, 4-lobed. Stamens 2. Style short. Stigma globose or 2-lobed. Drupe mostly 1-seeded, oily. — Trees or shrubs, with opposite coriaceous entire leaves, and small white fragrant flowers, in axillary racemes or panicles. 1. O. Americana, L. Smooth; leaves oblong or obovate-oblong, nar- rowed into a petiole; racemes compound, shorter than the leaves; flowers polygamo-dioecious, bracted ; drupe ovoid, dark purple. — Light soil, near the coast, Florida to North Carolina. March and April. — A shrub or small tree, with whitish bark and evergreen leaves. Drupe as large as a pea, bitter and astringent. 2. CHIONANTHUS, L. FRINGE-TREE. Calyx small, 4-cleft. Corolla wheel-shaped, 4-parted, with long and linear lobes. Stamens 2-4, included. Style very short : stigma notched. Drupe fleshy, 1-seeded. — A shrub, with oblong entire deciduous leaves, and delicate white flowers in slender axillary panicles, appearing with the leaves. 1. C. Virginica, L. — Light soil, Florida, and northward. April and May. — Shrub 6° -10° high. Leaves smooth or pubescent, narrowed into a petiole. Panicles longer than the leaves, leafy-bracted. Flowers on slender drooping pedicels. Corolla-lobes linear, 1' long. Drupe ovoid, purple. i 3. FRAXINUS, Tourn. ASH. Flowers dio3cious and (in our species) apetalous. Calyx 4-lobed or toothed, minute, sometimes wanting. Stamens 2 - 4 : filaments shorter than the large anthers. Stigma 2-cleft. Fruit (samara) dry, winged above, 1 -2-seeded. Co- tyledons elliptical. Kadicle slender. — Trees. Leaves petioled, odd-pinnate, deciduous. * Fruit naked and terete or barely margined and 2-edged at the base, winged above : leaflets 7-9, stalked. 1. P. Americana, L. (WHITE ASH.) Branches and petioles smooth; leaflets ovate-oblong or lanceolate-oblong, acuminate, entire, or slightly serrate above, smooth on the upper surface, pubescent or glaucous beneath ; fruit terete, striate, dilated at the apex into a cuneate-linear or lanceolate obtuse or notched wing. (F. acuminata and F. juglandifolia, Lam.) — Swamps, Florida to Mis- 370 OLEACE^E. (OLIVE FAMILY.) sissippi, and northward. April. — A large tree. Leaflets 2' - 4' long. Fruit l£' long. ^2. F. pubescens, Lam. (BED ASH.) Branchlets and petioles velvety- pubescent ; leaflets oblong-ovate or ovate-lanceolate, gradually acuminate, bright green above, pale and more or less pubescent beneath ; fruit acute at the base, flattish and somewhat 2-edged, gradually dilated upwards into a long lanceolate and often notched wing. (F. tomentosa, Michx.} — Swamps, Florida and north- ward. March and April. — A small tree. 3. P. viridis, Michx. (GREEN ASH.) Glabrous throughout ; leaflets ovate or oblong-ovate, more or less toothed, smooth and green both sides ; fruit as in No. 2, of which it may be a variety. — Swamps, Florida to Missis- sippi, and northward. March and April. — A small tree. * * Fruit winged all round the seed-bearing portion : leaflets 5-9, short-stalked. 4. P. quadrangulata, Michx. (BLUE ASH.) Branchlets square, smooth ; leaflets oblong-ovate or oblong, acuminate, sharply serrate, when young pubes- cent beneath ; fruit linear-oblong, obtuse at both ends. — Tennessee, and north- ward. May. 5. F. platycarpa, Michx. ("WATER ASH.) Branchlets terete, smooth or pubescent ; leaflets ovate or elliptical, serrate or almost entire, often pubes- cent beneath ; fruit broadly winged, oblong-obovate or oblong with a tapering and acute base, sometimes 3-winged. (F. triptera and F. pauciflora, Nutt.) — Deep river-swamps, Florida to Mississippi, and northward. March and April — A small tree. 4. FORESTIERA, Poir. (ADELIA, Michx.) Flowers dioecious or polygamous, from axillary scaly buds. Corolla none. Calyx minute, 4-lobed. Sterile flowers single or 3 together in the axils of im- bricated scaly bracts. Stamens 3 -7. Fertile flowers peduncled. Styles slender. Stigma capitate. Ovary 2-celled. Drupe ovoid, 1-seeded, black or blue. — Shrubs. Leaves opposite, petioled, serrulate. Flowers minute, greenish, pre- ceding the leaves. 1. P. porulosa, Poir. Leaves coriaceous, smooth at maturity, nearly sessile, ovate-lanceolate or oblong, obtuse, entire, punctate underneath, the margins entire and revolute ; drupe short-ovoid. — Coast of East Florida, Michaux, Leitner. 2. P. ligustrina, Poir. More or less pubescent ; the branchlets rough- ened with fine tubercles; leaves rather membranaceous, obovate or obovate- oblong, mostly obtuse, serrulate (!' long), contracted at the base into a distinct petiole ; drupe oval-oblong. — Rocky banks, Florida, Georgia, and westward. 3. P. acuminata, Poir. Glabrous or slightly pubescent when young; branchlets sometimes spinescent; leaves membranaceous (2' -3' long), ovate- lanceolate or ovate and tapering-acuminate at both ends, somewhat serrulate, slender-petioled ; drupe elongated-oblong, mostly pointed when young. — "Wet grounds, Georgia to Tennessee, and northwestward. ARISTOLOCHIACE^E. (BIRTHWORT FAMILY.) 371 DIVISION III. APETALOUS EXOGENOUS PLANTS. Floral envelopes single, consisting of a calyx only, or alto- gether wanting. ORDER 105. ARISTOLOCHIACEJE. (BIRTHWORT FAMILY.) Herbs or woody vines, with alternate petioled mostly cordate and entire leaves, and solitary peduncled dull-colored flowers. — Calyx adherent to the 6-celled ovary, tubular, valvate in the bud. Stamens 6-12, more or less united with the styles : anthers adnate, extrorse. Fruit 6-celled, few - many-seeded. Seed anatropous. Embryo minute, at the base of fleshy albumen. 1. ASARUM, Tourn. ASARABACCA. Calyx regular, 3-lobed. Stamens 12, the filaments partly united with the style, and usually prolonged beyond the anthers. Capsule fleshy, globose, open- ing irregularly — Aromatic perennial herbs, with creeping stems, long-petioled cordate or kidney-shaped leaves, and axillary peduncled flowers. § 1. ASARUM. — Calyx bell-shaped, adnate to the ovary, 3-parted: filaments free or nearly so : stigma 6-lobed. — Leaves deciduous. 1. A. Canadense, L. (WILD GINGER-ROOT.) Pubescent ; leaves 2, kid- ney-shaped ; calyx-lobes acuminate ; filaments as long as the style. — Mountains of North Carolina, and northward. April and May. — Flowers short-peduncled, purple within. § 2. HETEROTROPA. — Calyx inflated, nearly free from the ovary, 3-cleft: fila- ments united with the ovary: styles 6 : stigmas 2-cleJl. — Leaves evergreen, smooth, mottled. 2. A. Virginicum, L. Leaves round-cordate ; calyx inflated-bell-shaped, with rounded lobes; stigmas deeply 2-cleft. — Rich shady woods in the upper districts, Georgia, and northward. April and May. — Leaves single or 2-3 together, 2' long. Flowers 8" - 9" long, nearly sessile at the base of the petioles, greenish without, dull purple within. 3. A. arifolium, Michx. Leaves oblong-cordate; calyx pitcher-shaped, with rounded lobes ; stigmas slightly 2-cleft. — Shady woods in the lower dis- tricts, Florida to North Carolina. March and April. — Leaves 3' -4' long, auriculate at the base, long-petioled. Calyx 1' long, distinctly peduncled, con- tracted above the middle, dark purple within. 2. ARJSTOLOCHIA, Tourn. BIRTHWORT. Calyx tubular, commonly bent and inflated above the ovary. Anthers 6, ses- sile, adnate to the 3 - 6-lobed or angled stigma. Capsule 6-valved. — Erect or 372 NTCTAGINACE^. (FOUR-O'CLOCK FAMILY.) \ twining herbs or shrubs. Leaves alternate, cordate at the base. Flowers long- peduncled, axillary, or near the base of the stem. * Low herbs. 1. A. Serpentaria, L. Stems single or clustered, pubescent, zigzag and leafy above ; leaves short-petioled, varying from ovate to linear-lanceolate, cor- date or hastate at the base ; flowers near the base of the stem, on bracted spread- ing peduncles ; calyx tortuous, 3-lobed, dull purple. (A. hastata, Null.) — Shady woods, Florida to Mississippi, and northward. June -Aug. — Stem 8' -12' high. Leaves 2' -4' long. Calyx shaped like the letter S. * * Woody vines : capsule oblong, six-angled, 3' - 4' long. 2. A. SiphO, L'Her. Stem smoothish ; leaves large, orbicular-cordate, slightly pubescent beneath ; peduncles slender, solitary, with a roundish clasping bract near the base ; calyx curving upward, with the broad spreading brownish- purple border obscurely 3-lobed. — Rich woods along the mountains, Georgia, and northward. May. — Stem climbing high. Leaves G'- 12' broad. Calyx shaped like a Dutch pipe, 1 £' long. 3. A. tomentosa, Sims. Hoary-pubescent ; leaves cordate ; peduncles opposite the leaves, bractless, woolly ; calyx bent in the middle, the greenish rugose unequally 3-lobed border reflexed, thickened and dark brown at the nearly closed throat. — River-banks, Florida, to the mountains of North Caro- lina, and westward. May. — Stem very long. Leaves 3' - 5' long. Calyx similar in shape to the preceding, but smaller. ORDER 106. NYCTAGINACE^E. (FOUR-O'CLOCK FAMILY.) Herbs or shrubs with tumid joints. Leaves mostly opposite, simple, petioled, without stipules. — Calyx colored and resembling a corolla, tubular-bell-shaped or funnel-shaped, free from the 1-celled and 1-ovuled ovary, plaited in the bud, contracted in the middle, with the upper por- tion deciduous. Stamens 1 - several, hypogynous : anthers 2-celled, round- ish. Ovule erect. Style simple : stigma simple or branched. Achenium enclosed in the indurated, mostly ribbed, often glandular base of the calyx. Embryo coiled or folded around copious mealy albumen. Cotyle- dons leafy. Radicle inferior. Synopsis. * Flowers surrounded by a calyx-like involucre. 1. OXYBAPIIUS. Inyolu&re open, membranaceous, 5-lobed. Herbs. * * Flowers without an involucre. 2. BOERHAATTA. Flowers perfect. Embryo coiled. Herbs. 3. PISONIA. Flowers dioecious. Embryo straight. Shrubs. 1. OXYBAPHITS, Vahl. Flowers perfect, 1 - 5 in a cluster, surrounded by an open cup-shaped 5-lobed involucre. Calyx-tube very short; the bell-shaped limb 5-lobed, deciduous. NYCTAGINACE^E. (FOUR-O'CLOCK FAMILY.) 373 Stamens 3, exserted. Style slender : stigma capitate. Achenium enclosed in the indurated ribbed persistent base of the calyx. — Erect herbs, from thick perennial roots. Leaves opposite. Flowers terminal, purple or rose-color. 1. O. angustifolius, Sweet. Stem smoothish, branching above; leaves linear-lanceolate, smooth, obtuse at the sessile base; the upper ones distant, acute; flowers loosely panicled; involucre with rounded hairy lobes, at length enlarged and strongly nerved, 3-flowered ; base of the calyx villous. — South Carolina, and westward. — Stem 3° -4° high. Leaves 2' long. Calyx 4"- 5" long, whitish, veiny. 2. O. albidus, Sweet. Stem erect, 4-angled, furrowed, glandular, pubes- cent ; branches opposite ; leaves oblong-lanceolate, roughish ; peduncles oppo- site, the lower ones solitary, the upper clustered ; involucre hairy ; base of the calyx 5-6-angled, almost hispid. (Allionia albida, Ell.) — Near Columbia, S. C., Elliott. 2. BOERHAAVIA, L. Flowers perfect, Involucre none. Calyx-tube cylindrical or obconical, 5- ribbed; the limb colored, funnel-shaped, 5-lobed, deciduous. Stamens 1-4: anthers minute, roundish. Style slender: stigma obtuse. Embryo folded. — Annual herbs, with diffuse branching stems, and opposite ovate or rounded leaves. Flowers small, in solitary or panicled clusters. 1. B. erecta, L. Stems ascending, branched from the base, smooth, tumid at the joints ; branches alternate ; leaves ovate or roundish, acute or mucronate, often more or less cordate, wavy along the margins, whitened and minutely dot- ted with black beneath ; clusters 3 - 5-flowered, in ample panicles ; stamens 2 ; fruit smooth, obconical, truncate, strongly ribbed. — Cultivated ground, Florida to South Carolina. July - Sept. — Stem l°-3° long. Leaves rather thick, 2' -3' long. Flowers small, purple. 2. B. hirsuta, Willd. Stem diffuse, alternately branched, minutely pubes- cent, hirsute above ; leaves ovate or oblong-ovate, mucronate, obtuse at the base, undulate, smooth, and similarly colored on both sides, ciliate on the margins ; clusters 3 - 6-flowered, forming a loose spreading panicle ; flowers minute ; calyx- limb hairy at the apex ; fruit obconical, rounded at the apex, with the ribs gland- ular-viscid. — South Florida. — Stem stout, 2° - 3° long. Leaves 1' - 2' long. 3. B. viscosa, Lag. Viscid or minutely pubescent ; stem terete, straight ; branches opposite ; leaves ovate-oblong or ovate-lanceolate, mucronate, acute at the base, smooth, whitish beneath, slender-petioled ; peduncles solitary, axillary, 2-cleft, mostly shorter than the leaves ; flowers capitate, minute ; stamens 3 ; fruit club-shaped, acutish, with the ribs glandular. — South Florida. — Stem 2°- 3° long. Leaves I'- l£' long. 3. PISONIA, Plum. Flowers dioecious. Involucre none. Calyx 5- or 10-toothed, funnel-shaped in the sterile flowers, tubular and persistent in the fertile. Stamens 6-10, exserted : 32 374 PHYTOLACCACE^. (POKEWEED FAMILY.) anther-cells distinct. Style mostly lateral : stigma many-cleft. Fruit terete or ribbed, smooth or glandular. Embryo straight. Cotyledons folded around the albumen. — Trees or shrubs, with opposite or alternate leaves, and mostly rose- colored flowers in corymbose cymes. 1. P. aculeata, L. Spiny; stem smooth; branches widely spreading; leaves alternate, short-petioled, ovate or elliptical, acute or obtuse, smooth ; cymes terminal, peduncled, pubescent, many-flowered; calyx of the sterile flower 10-toothed ; stamens 7 ; fruit club-shaped, 10-striate, and beset with 5 rows of shining viscid glands. — South Florida. — Shrub 5° high ; the spines short and recurved. Leaves l'-2' long. 2. P. obtusata, Swartz. Smooth, spineless; leaves oblong, rounded at the apex, tapering at the base, short-petioled, revolute on the margins, rigid ; cymes long-peduncled, many-flowered, the branches horizontal; fertile calyx 5-cleft, with the lobes narrow and acute ; stamens 7 ; fruit oblong, many-fur- rowed, glandless ; capsule truncate. — South Florida. — Leaves opposite, l'-2' long, light brown beneath. Flowers I'1 -2" long. ORDER 107. PHYTOLACCACE^E. (POKEWEED FAMILY.) Herbs or shrubs, with alternate entire leaves, and apetalous 3-bracted racemed or spiked flowers. — Calyx composed of 4 - 5 nearly equal sepals, more or less united at the base, unchanged in fruit. Stamens hypogynous, as many as the sepals and alternate with them, or numerous, free, or united at the base ; sterile ones none : anthers 2-celled, introrse. Ovary simple or compound. Ovules amphitropous or campylotropous, solitary, erect. Styles as many as the ovaries. Fruit of 1 - many carpels. Albu- men copious or none. Embryo annular, rarely straight. Radicle inferior. Synopsis* SUBORDER I. PETIVERIE^. Fruit simple. Cotyledons convolute. Leaves stipulate. 1. PETIVERIA. Fruit an achenium with reflexed spines at the apex. Embryo straight in scanty albumen. 2. RIVINA. Fruit a berry. Embryo forming a ring around the albumen. SUBORDER II. PHYTOL ACCEDE. Fruit compound. Cotyledons flat. Leaves exstipulate. 3. PHYTOLACCA. Fruit a berry, composed of numerous carpels arranged in a circle. 1. PETIVEBIA, Plum. Calyx 3-bracted, 4-parted, herbaceous. Stamens 4 - 8 : anthers linear. Ovary simple, 1 -celled. Ovule single, erect, amphitropous. Stigma many- cleft. Achenium wedge-shaped, compressed, 2-lobed at the apex, each lobe CHENOPODIACE^E. (GOOSEFOOT FAMILY.) 375 armed with 2-3 rcflexed spines. Albumen almost none. Embryo straight. Cotyledons unequal, convolute. — Shrubby tropical plants, with entire stipulate leaves, and small greenish flowers in an elongated and slender spike. 1. P. alliacea, L. — South Florida.— Stem 2° -3° high, closely pubes- cent. Leaves 3' -4' long, oblong or obovate, obtuse, narrowed into a short petiole, pubescent beneath. Spikes filiform, single or by pairs, 6' -12' long. Calyx-lobes linear, incurved at the apex. Stamens 4-5. Achenia erect, ap- pressed to the rachis, with two spines at each lobe. Stipules subulate, minute. 2. RIVINA, Plum. Calyx remotely 3-bracted, 4-parted, colored. Stamens 4 -8 : anthers ovate or oblong. Ovary simple. Ovule solitary, amphitropous. Stigma capitate or many-cleft. Berry nearly globose, at length dry. Embryo forming a ring around the copious albumen. Cotyledons somewhat leafy, convolute. — Shrubs, with alternate minutely stipulate petioled leaves, and small white or rose-colored flowers in axillary and terminal racemes. Bracts deciduous. 1. B. humilis, L. Closely pubescent; stem with spreading branches; leaves oblong-ovate, rounded at the base, tapering but obtuse at the summit, on long filiform petioles ; racemes slender, longer than the leaves ; calyx-lobes obovate, pale rose-color ; berry rounded, compressed. — South Florida. — Shrub 1° - 2° high. Leaves 1 ' - 3' long. Flowers and berries 1 " - 1 |" long. 3. PHYTOLACCA, Tourn. POKEWEED. Calyx 3-bracted, 5-parted ; the lobes petal-like, rounded. Stamens 5 - 25, the filaments subulate : anthers elliptical. Ovary compound. Styles 5-12, short, distinct, recurved at the apex, stigmatic within. Fruit a depressed globose berry, containing 5-12 one-seeded indehiscent carpels united in a circle. Embryo forming a ring around the central albumen. Cotyledons linear. — Erect branch- ing herbs, with entire petioled leaves. Flowers in racemes opposite the leaves. 1. P. decandra, L. Smooth; stem very stout (2° -12° high); leaves ovate-lanceolate, acute ; racemes many-flowered, as long as the leaves ; flowers white, turning purplish; stamens, styles, and carpels 10. — Margins of fields and uncultivated ground, Florida, and northward. July -Sept. 1J. — Boot large. Berry black. ORDER 108. CHENOPODIACEJE. (GOOSEFOOT FAMILY.) Unsightly herbs, with exstipulate leaves, inconspicuous flowers, and the characters mostly of the preceding family ; but the green calyx often becoming succulent in fruit, 5 (rarely 1-2) stamens opposite the sepals, a solitary ovary forming an achenium or utricle in fruit, twcr short and spreading styles, a horizontal or vertical lenticular seed, and the embryo forming a ring around the albumen, or spirally coiled with little or no albumen. 376 CHENOPODIACE^. (GOOSEFOOT FAMILY.) Synopsis* TRIBE I. C YCLOLiOBEJE. — Embryo curved like a ring around the albumen. 1. CHENOPODIUM. Calyx 3 - 5-parted, the lobes commonly keeled in fruit. Seed horizontal, rarely vertical. 2. ATRIPLEX. Flowers monoecious. Calyx of the sterile flowers 5-parted, of the fertile flower none. Ovary enclosed in a pair of separate at length coriaceous bracts. Radicle inferior. 3. OBIONE. Bracts of the fertile flower united. Radicle superior. 4. SALICORNIA. Flowers 3 together, lodged in excavations of the thickened joints of the TRIBE II. SPIROIjOBE^J. — Embryo spirally coiled, with little or no albumen. Seed horizontal. 5. CHENOPODINA. Calyx 5-parted, not keeled. Leaves terete, fleshy. 6. SALSOLA. Calyx at length transversely winged. Leaves spiny. 1. CHENOPODIUM, L. PIGWEED. GOOSEFOOT. Calyx 5- (rarely 3 -4-) parted, bractless, the lobes mostly keeled. Stamens 5, the filaments filiform. s Styles 2-3, distinct, or united at the base. Utricle depressed, enclosed in the globose or 5-angled calyx. Seed horizontal (rarely vertical), lenticular. Embryo forming a more or less perfect ring around the copious mealy albumen. — Glandular or powdery-coated herbs, with alternate leaves, and clusters of small greenish flowers disposed in panicled spikes. * Annuals. 1. C. Boscianum, Moq. Stem erect, with angular branches ; leaves small, spreading, lanceolate-linear, very acute, entire, or the lower ones some- what toothed, more or less mealy and whitened beneath ; spikes loose, leafy ; seed acute on the margins, slightly roughened, shining, enclosed in the acute- angled calyx. — Carolina, Bosc. — Stem slender, 2° high. Leaves 5" - 12" long, on petioles 2" - 3" long. Calyx-lobes elliptical-ovate, acutish. 2. C. album, L. Stem erect, branched, slightly furrowed ; leaves ascend- ing, rhombic-ovate, acute at the base, toothed ; the upper ones lanceolate and entire, more or less coated with a white powder ; spikes panicled ; the small clusters scattered or crowded, nearly leafless ; seed enclosed in the 5-angled calyx, acute on the margins, smooth and shining. — Varies (C. viride, L.} with nearly entire and less mealy leaves, and the larger clusters more scattered. — Cultivated grounds, Florida, and northward. July - SepL — Stem 2° - 6° high. Petioles long and slender. 3. C. murale, L. Stem ascending, branched ; leaves long-petioled, ovate- rhombic, acute, unequally and sharply toothed, bright green on both sides ; spikes slender, spreading, corymbose, scarcely exceeding the leaves ; seed not shining, acute on the margins, nearly enclosed in the slightly angled calyx. — Waste places, Florida, and northward. — Stem 6'- 18* high. 4. C. Botrys, L. Stem erect, branched ; leaves oblong, somewhat pinna- tifid-lobed, with the lobes obtuse and glandular-pubescent, the upper ones minute ; racemes numerous, axillary, spreading, cymose } seeds with rounded CHENOPODIACE^E. (GOOSEFOOT FAMILY.) 377 margins, not wholly include'd in the open and even calyx. — Waste places, Columbia, South Carolina, Elliott, and northward. — Stem 6'- 12' high. * * Perennial. 5. C. Anthelminticum, L. (WORM-SEED.) Stem stout, erect, branch- ing ; leaves oblong or lanceolate, acute at each end, sharply toothed ; flowers in narrow panicles terminating the branches ; seeds with obtuse margins, smooth and shining, included in the even calyx. — Waste grounds, Florida, and north- ward. — Stem 2° -3° high. 2. ATRIPLEX, L. ORACHE. Flowers monoecious or dioecious, either similar to those of Chenopodium, or the fertile flower destitute of a calyx, and enclosed in two ovate or rhombic sep- arate or partially united bracts. Seed vertical, lenticular. Embryo forming a ring around the copious mealy albumen. Radicle inferior. — Herbs, commonly coated with scurfy or silvery scales. Leaves alternate or opposite, oftener has- tate or angled. Flowers in dense spikes. 1. A. hastata, L. Stem angled, diffusely branched ; leaves petioled, com- monly nearly opposite, hastate or triangular, somewhat toothed, and, like the branches, more or less scurfy; fruiting bracts triangular-ovate or rhomboidal, entire or toothed below, smooth or muricate within. (A. patula, Ell.) — Sea- shore, South Carolina, Elliott, and northward. June -Sept. — Stems l°-2° long. 3. OBIONE, Gsertn. Chiefly as Atriplex, both in character and habit ; but the two indurated bracts more or less united, often toothed on the edges and crested on the sides, and the radicle superior. 1. O. arenaria, Moquin Plant coated with silvery scales ; stem branch- ing from the base, ascending ; lowest leaves opposite, obovate, entire, tapering into a petiole, the others alternate, nearly sessile, lanceolate or oblong, acute, wavy and slightly toothed ; sterile flowers in close terminal spikes ; the fertile ones in axillary clusters ; bracts 3-toothed at the summit, and with two mostly toothed knobs at the sides. (Atriplex arenaria, Nutt.) — Drifting sands along the coast, Florida, and northward. July -Sept. (I)— Stem l°-2° high. Leaves l'-l|' long. 2. O. cristata, Moquin. Plant scurfy, green; stems diffusely branched; leaves oblong, mucronate, petioled, denticulate, green above, paler beneath; bracts roundish, acute, somewhat spiny-toothed on the margins, and with 2-4 roundish knobs at the sides.— Sandy shores, South Florida. — Stem l°-l£° high. Leaves £'- 1' long. Flowers clustered. 4. SALICOKNTA, Tourn. SAMPHIRE. Flowers perfect, lodged in excavations of the thickened upper joints of the stem, spiked ; calyx thin, with a denticulate border, at length spongy, and sur- 32* 378 AMARANTACE^E. (AMARANTH FAMILY.) rounded at the apex by a circular wing. Stamens '1 -2. Styles united below. Utricle included in the calyx. Embryo coiled, or bent into a ring. — Smooth and succulent saline plants, with jointed leafless stems. Flowers three together ; the lateral ones sometimes sterile, minute. 1. S. herbacea, L. Annual; stem erect, much branched; the joints thickened upward, obtusely 2-toothed at the apex ; spikes long, tapering to the summit. — Salt marshes along the coast, Georgia, and northward. August. — Stem 6' -12' high. 2. S. ambigua, Michx. Stem shrubby, prostrate or creeping ; the branches herbaceous, erect ; joints truncate, dilated upward, slightly 2-toothed ; spikes cylindrical, obtuse, the uppermost approximate, sessile, the lateral ones pcdun- cled. — Sandy marshes along the coast, Florida, and northward. Aug. — Stem 2° -3° long, the branches 4'- 6' high. 5. CHENOPODINA, Moquin. Flowers perfect, bracted. Calyx 5-parted, fleshy, inflated and berry-like in fruit. Stamens 5. Stigmas 2-3, spreading. Utricle depressed, enclosed in the calyx. Seed horizontal, lenticular. Embryo flat-spiral, dividing the scanty albumen into 2 portions. — Smooth saline plants, with fleshy terete alternate leaves, and axillary clustered flowers. 1. C. maritima, Moquin. Annual; stem diffusely much branched; leaves linear, acute ; calyx-lobes obtuse, keeled ; stamens exserted. — Low sandy places along the coast, Florida, and northward. Sept. — Stem l°-3° high. Leaves l'-2' long. Flowers minute. 6. SALSOLA, L. SALTWORT. Flowers perfect, 2-bracted. Calyx 5-parted, the lobes at length transversely winged. Stamens 5, slightly united at the base. Style slender : stigmas 2. Utricle flattened at the apex, enclosed in the persistent calyx. Embryo conical- spiral. Albumen none. — Saline plants, with alternate and fleshy leaves, and axillary flowers. 1. S. Kali, L. Smooth; stem spreading, ascending; leaves subulate, spine- pointed, like the ovate bracts ; flowers solitary ; calyx-lobes connivent, with the dilated, membranaceous wing rose-colored. (S. Caroliniana, Walt.) — Sandy shores, Georgia, and northward. Aug. ® — Stem 1° - 1|° high. ORDER 109. AMARANTACE^E. (AMARANTH FAMILY.) Chiefly herbs, with simple exstipulate leaves, and inconspicuous scarious- bracted flowers, which are commonly crowded in spikes or heads. — Sepals 3-5, free, or united at the base, scarious, imbricated in the bud. Stamens 3-5, hypogynous, opposite the sepals, free, or united below, often with AMARANTACE^E. (AMARANTH FAMILY.) 379 sterile filaments interposed : anthers 1 - 2-celled, introrse. Ovary single, ovate, compressed, 1 - many-ovuled. Stigmas 1-3. Utricle closed or circumscissile. Embryo coiled into a ring around the central albumen. Synopsis* TRIBE T. CEIjOSIE^E. Anthers 2-celled. Ovary many-ovuled. 1. CELOSIA. Stamens united at the base. Utricle circumscissile. TRIBE II. ACHYRANTHEJE. Anthers 2-celled. Ovary 1-ovuled. — Leaves alter- nate. Stamens free. Sterile filaments none. * Utricle circumscissile. 2. AMARANTUS. Flowers monoecious. Sepals 3 -5. * * Utricle indehiscent. 3. EUXOLUS. Flowers all alike, monoecious, sessile. Sepals 3-5. 4. AMBLOGYNA. Flowers monoecious. Calyx of the staminate flower 3-sepalous, of the pistillate flower 5-parted, funnel-shaped. 5- SCLEROPUS. Flowers monoecious. Sepals 5. Stamens 3. Fruiting pedicels indurated and deciduous with the fruit. ;. . 6. ACNIDA. Flowers dioecious. Sepals of the staminate flower 5, of the pistillate none. Stamens 5. TRIBE III. GOMPHRENE^E. Anthers 1-celled. Ovary 1-ovuled. Leaves opposite. Stamens united below. 7. IRESINE. Calyx 5-sepalous. Stamens united into a short cup. Sterile filaments none. 8. ALTERNANTHERA. Calyx 5-sepalous. Stamens united into a cup. Sterile filaments minute, tooth-like. 9. TELANTHERA. Calyx 5-sepalous. Stamens united into a tube. Sterile filaments cleft or fimbriate at the apex. 10. FR Rhizoma creeping. Stem 1°- 2° high. Spikes 4' -6' long. ORDER 116. CERATOPHYL-LACE^E. (HORNWORT FAMILY.) Submerged aquatic herbs, with filiform jointed and branching stems, finely dissected whorled leaves, and small axillary monoecious flowers, destitute of floral envelopes, but surrounded by an involucre of 8-12 linear leaves. Anthers 12-24, oblong, 2-3-toothed, sessile. Ovary solitary, simple, with a single suspended orthotropous ovule. Achenium compressed, pointed with the slender persistent style. Albumen none. Cotyledons 4. Plumule conspicuous. — Consisting of the single genus 1. CERATOPHYLLUM, L. HORNWORT. 1. C. demersum, L. Leaves rigid, 6 - 9 in a whorl, once or twice forking, with the lobes spiny-toothed ; achenium oval, compressed, tubercular-roughened on the sides, and armed near the base with 2 lateral widely-spreading slender spines. — In still water, Florida, and northward. Sept. and Oct. — Stems 1°- 4° long. Leaves near the end of the branches much crowded. 2. C. echinatum, Gray ? Leaves weak, 9-12 in a whorl, 3-4 times forking, the ultimate segments bristly -toothed ; ovaries warty, unarmed ; ache- nium oblong, tubercular-roughened on the sides, the edges margined and armed with 5-7 strong and spreading spines. — Shallow ponds, on St. Vincent's Isl- and, West Florida. May. — Stems 6' - 12' long. 3. C. SUbmersum, L. Leaves hair-like, 3-4 times forking, bristly- toothed ; achenium oblong, slightly compressed, tubercular-roughened, with' rounded margins, unarmed. — South Florida, Dr. Blodgett. — Stems 6' - 12' long. ORDER 117. CALLJTRICHACEJE. (WATER-STARWORT FAMILY.) Small aquatic annuals, with opposite entire leaves, and solitary axillary polygamous flowers without floral envelopes. Stamen mostly solitary, 2- bracted in the sterile flower. Filament slender : anther reniform, the PODOSTEMACE^E. (RIVER-WEED FAMILY.) 399 cells confluent. Styles 2, slender: stigmas acute. Capsule 4-angled, 4- celled, with a single suspended anatropous 'seed in each cell, indehiscent. Embryo straight, in copious fleshy albumen. Radicle long, superior. — Consisting of the single genus 1. CALLITRICHE, L. WATER-STAEWORT. 1. C. verna, L. Floating leaves spatulate or obovate, crowded, the lower ones distant, linear; fruit nearly sessile, 2-bracted, keeled on the back. (C. heterophylla, Ell.} — Var. TERRESTRIS. Smaller (2' -3' long); stems much branched/creeping on damp earth ; leaves (l"-2"long) all linear. — Ditches and shallow water, Florida, and northward. March and April. — Stems several, 6'- 12' long. • Leaves £' long. ORDER 118. PODOSTEMACE-3S. (EIVER-WEED FAMILY.) Moss-like aquatic plants, with minute flowers, from a spathe-like in- volucre, and destitute of floral envelopes. — Stamens 5-12: anthers 2-celled. Capsule 2 - 3-celled, and pointed by as many persistent styles. Seeds numerous, on a thick central placenta, destitute of albumen. 1. PODOSTEMON, Michx. RIVER-WEED. Spathe 2-leaved. Flowers pedicelled. Filaments elongated, borne on one side of the stalk of the ovary, united below, and bearing only a single anther. Styles 2, simple. Capsule ribbed, 2-celled, 2-valved. Seeds imbricated. — Submerged aquatic plants, attached to rocks and pebbles by disk-like expan- sions of the stem. Leaves 2-ranked, divided into filiform segments. 1 . P. ceratophyllum, Michx. Leaves rigid, sparingly divided, sheath- ing at the base ; flowers solitary, on slender pedicels ; capsule oval, 8-ribbed. — Rocky places in rivers, Georgia, and northward. July. — Plant olive-green, l'-4' long. 2. P. abrotanoides, Nutt. Leaves much divided, with hair-like seg- ments; flowers 2-3 together, on short pedicels; capsule oblong, 10-ribbed. — Gravelly places in the Chattahodchee River, Nuttall — Plant larger than the last ORDER 119. EUPHORBIACE^. (SPURGE FAMILY.) Plants commonly with acrid milky juice, and monoecious or dioecious often petalous flowers. — Calyx 2 — 8-lobed, mostly valvate in the bud, sometimes wanting. Stigmas 2 -several, simple or divided. Fruit of 2 - several (mostly 3) 1 - 2-seeded carpels united around a central axis, sep- arating at maturity, rarely 1-celled or indehiscent. Seeds suspended, anatropous. Embryo in fleshy albumen. Cotyledons flat. 400 EUPHORBIACE^E. (SPURGE FAMILY.) Synopsis. § 1. Ovules and seeds solitary in the cells. Flowers monoecious. * Flowers without floral envelopes, enclosed in a common cup-shaped involucre. 1. EUPHORBIA. Fertile flower solitary in the 4 - 5-toothed involucre. Sterile flowers sev- eral, each reduced to a single stamen. * * Flowers in bracted spikes or racemes ; the upper ones sterile, the lowest fertile. •t- Flowers apetalous. •H- Stigmas and cells of the capsule 6-7. 2. HIPPOMANE. Carpels woody, indehiscent. Spikes terminal. Staminate flowers clus- tered. . •H- -M- Stigmas and cells of the dehiscent capsule 3. 3. STILLTNGIA. Calyx 2 - 3-toothed. Anthers erect. Staminate flowers clustered. 4. EXC(ECARIA. Calyx 3-parted. Anthers pendulous. Staminate flowers single. 5. ACALYPHA. Stigmas many-parted. Flowers spiked. Bracts of the pistillate flowers leafy, toothed. 6. TRAQIA. Stigmas 3, simple. Flowers racemed. Bracts small, entire. H- •»- Staminate flowers (except No. 1 in Croton), or the pistillate also furnished with petals. 7. CROTON. Pistillate flowers apetalous, or with minute petals. Stamens 6 or more, distinct. 8. CROTONOPSIS. Pistillate flowers apetalous. Capsule 1-celled. Stamens 5, distinct. 9. APIIORA. Pistillate and Staminate flowers 5-petalled. Capsule 3-celled. Stamens 10, monadelphous. * * * Flowers cymose or panicled, apetalous. 10. CNIDOSCOLUS. Flowers cymose. Calyx white, corolla-like. 11. RICINUS. Flowers in crowded panicles. Calyx herbaceous. J 2. Ovules, and commonly the seeds, 2 in the cells. * Flowers monoecious, apetalous. Ovary 3-celled. Herbs. 12. PHYLLANTHDS. Flowers axillary. Calyx 5 - 6-parted. Stamens 3, monadelphous. 13. PACHYSANDRA. Flowers spiked. Calyx 4-parted. Stamens 4, distinct. * * Flowers dioecious, apetalous. Ovary 2-celled. Shrubs. 14. DRYPETES. Flowers in axillary clusters. Fruit drupaceous, 1-celled, 1-seeded. 1. EUPHORBIA, L. SPURGE. Flowers monoecious, destitute of calyx and corolla ; the single pistillate, and several monandrous staminate ones included in a cup-shaped or top-shaped 4-5- toothed involucre, which has commonly thick and often colored glands between the teeth. Styles 3, 2-cleft. Capsule exserted, 3-celled : carpels 2-valved, 1-seeded. — A polymorphous genus of plants with acrid milky juice. § 1 . Leaves without stipules. * Stem erect, umbellately branched above : involucres solitary, terminal and in the forks of the branches: leaves of the stem alternate, those oj the branches opposite or whorled. •«- Glands of the involucre 5, with white petal-like appendages : leaves entire : peren- nials. 1. E. corollata, L. Stem smooth or pubescent; branches 4 -6, twice or thrice forking, mostly short and fastigiate ; leaves thick, oblong or oval, obtuse, pale and mostly hairy beneath ; involucres pedicelled ; appendages of the (green) EUPHORBIACE^E. (SPURGE FAMILY.) 401 glands orbicular, showy; capsule and seed smooth. (E. paniculata, Ell.) — Va/. ANGUSTIFOLIA, Ell. Stems slender ; branches mostly 3, forking, elongated, spreading ; leaves varying from linear to obovate ; involucres small, scattered ; appendages of the glands transversely oblong. — Dry rich soil, Florida to Mis- sissippi, and northward ; the var. in sandy pine barrens. July - Sept. — Stem l°-2°high. 2. E. discoidalis, n. sp. Smooth or pubescent ; branches commonly 2, divaricate, forking ; leaves linear, obtuse, with the margins revolute ; involucres on slender pedicels ; glands deep red, bordered by the narrow appendages ; seeds obova to, pale, minutely pitted. — Dry sandy pine barrens near the coast, West Florida. Aug. -Oct. Plant 6' -18' high; the stem much shorter than the branches. Leaves 2' -3' long, 1"- 2" wide. Involucres scattered. 3. E. Curtisii, Engelm. Smooth ; stems filiform ; branches mostly 3, erect, sparingly divided ; leaves thin, linear or linear-oblong, obtuse, short-peti- oled, spreading or recurved ; involucres minute, scattered, on long capillary pedicels ; glands green, margined by the white crenate appendages ; capsule erect, short-stalked, round-angled; seed globose, smooth. — Low pine barrens, Florida to North Carolina. Aug. — Plant 6' - 9' high, sometimes branching from the base. Leaves £' - 1 £' long. •t- •<- Glands of the involucre 5, without appendages. *+ Annuals. 4. E. COmmutata, Engelm. Smooth ; stems erect or ascending, umbel- lately or alternately branched ; leaves thin, obovate, entire, the lower ones peti- oled, those of the branches round-kidney-shaped, sessile ; involucres nearly sessile, shorter than the floral leaves ; glands crescent-shaped or 2-horned ; cap- sule smooth, round-angled ; seeds ovoid, pitted. — Dry soil, Aspalaga, Florida, and probably elsewhere, previously confounded with E. Peplus, L., which has a wing-crested capsule. — Stem 6' -12' high. Leaves £'-!' long. Plant pale green. 5. E. obtusata, Pursh. Smooth ; stem erect ; branches 3 - 5 ; leaves sessile, serrulate, obtuse ; those of the stem wedge-oblong, of the branches ovate ; involucre nearly sessile; glands oval; capsule round-angled, warty; seeds smooth. (E. Helioscopia, Ell.?) — Shady woods, South Carolina, and north- ward. July - Sept. — Stem 1° high. Leaves 1' long. *•* *+ Perennials. 6. E. Darlingtonii, Gray. Stem tall; branches 5-8, forking; leaves entire, slightly pubescent beneath ; those of the stem oblong, of the branches oval or roundish, obtuse, truncate at the base ; involucres nearly sessile ; glands obliquely oval ; capsule obscurely warty ; seeds smooth. — Mountains of North Carolina, and northward. July. — Stem 2° - 4° high. 7. E. Floridana, n. sp. Smooth; stem erect; branches 3-4, forking; leaves entire, sessile ; those of the stem linear or linear-lanceolate, mostly acute, reflexed ; of the branches cordate-ovate, clasping, acute ; involucres short-pedi- cellcd, green, with the ovate lobes nearly entire, much shorter than the truncate crenate stalked glands ; capsule acute-angled, and, like the seeds, smooth. — Dry 34* 402 EUPHORBIACEJE. (SPURGE FAMILY.) pine barrens, Middle Florida. June -Aug. — Stem l°-2° high. Branches of the more sterile plants successively forking and widely spreading. Leaves l'-2' long. 8. E. inundata, Torr. Smooth; stem erect, 3-branchcd or alternately branched from near the base, few-flowered ; leaves erect, lanceolate, entire, acute, sessile ; those of the branches oblong-ovate, clasping ; involucre long-peduncledj reddish, the pubescent lobes 3-toothed ; glands orbicular, peltate, entire ; capsules acute-angled, smooth, like the globose seed. — Pine-barren swamps, Florida. April-June. — Stems 6' -12' high, from a thick woody root. Leaves 2' -3' long. 9. E. telephioides, n. sp. Smooth and somewhat fleshy ; stem thick ; branches 3, short, forking ; leaves of the stem large, oblong-obovate, obtuse, erect, with membranaceous margins ; those of the branches small, ovate, clasp- ing ; involucre purple, slender-stalked, the lobes ovate, entire, ciliate, incurved ; glands peltate, roundish, entire ; capsule acute-angled, smooth ; seeds smooth. — Low sandy pine barrens near the coast, West Florida. May and June. — Plant light-green, 2' - 5' high. Stem-leaves 2' - 3' long, often longer than the branches. Floral leaves 4" - 6" long. * * Stem erect, successively forking : leaves commonly opposite : involucres in the forks dark purple : glands 5, without appendages : perennials. 10. E. Ipecacuanhas, L. Stems several from a long perpendicular root, slender, commonly forking from near the base ; leaves of the stem and branches similar, opposite, or the lowest rarely alternate, entire, obtuse, varying from lin- ear to round-obovate, short-petioled ; peduncles slender, mostly longer than the leaves ; involucre small ; capsule slender-stalked, nodding, round-angled ; seeds minutely pitted. — Dry sandy soil, Florida to Mississippi, and northward. May and June. — Stem 2' - 12' high. Leaves £' - 1' long. 11. E. nudicaulis, n. sp. Smooth; stems slender, forking above ; leaves minute (J" long), oval or obovate, the lowest alternate, those of the branches opposite ; involucres minute, on short peduncles ; glands top-shaped. — Low pine barrens, near St. Joseph's, "West Florida. June. — Stems 1° high. Capsule and seeds unknown. * * * Branches and leaves alternate : involucres terminal, clustered or single : glands without appendages. 12. E. cyathoph.ora, Jacq. Annual, smooth ; stem erect, branching from the base ; branches elongated, leafy at the summit ; leaves petioled, oblong, fid- dle-shaped, toothed or entire, the uppermost deep red at the base ; involucres .clustered, short-stalked, with 5 incised lobes and a single gland ; capsule smooth ; seeds globose, warty. — Var. graminifolia (E. graminifolia, Michx.) has the leaves all linear and entire. — South Florida, and around dwellings, apparently intro- duced. May - Oct. — Stem 1° - 2° high. Leaves 2' long. 13. E. trichotomy, H.B. K. Shrubby; stem irregularly much branched, very leafy ; leaves small, imbricated, oblong-obovate, acute, obscurely crenate, sessile ; involucre solitary, top-shaped, sessile ; glands 5, peltate ; capsule smooth, short-stalked. — South Florida. — Stem low. Leaves 3" - 4" long. EUPHORBIACE^:. (SPURGE FAMILY.) 403 § 2. Leaves stipulate^ all opposite ; glands of the involucre 4 : annuals. * Stems erect or ascending : seeds 4^-angled, transversely rugose. 14. E. hypericifolia, L. Smooth throughout; stem ( £°-l° high) erect; branches alternate, 2-ranked ; leaves (£'-!' long) petiolcd, lanceolate-oblong, oblique and obtuse or acute at the base, equally serrulate on both margins ; stipules reflexed ; involucres in dense lateral long-peduncled cymose clusters ; appendages of the glands white, kidney-shaped ; capsules rather acutely angled, smooth; seed minute, reddish. — South Florida. — rVar. COMMTJNIS, Engelm. Stem often pubescent, ascending (l°-l£° high); oblong or lanceolate, obtuse or cordate at the base, often blotched with red, sharply serrate on the lower margin, entire below the middle on the upper ; clusters terminal ; appendages of the glands rounded, entire ; capsule round-angled, smooth ; seeds larger, nearly black. — Cultivated grounds, Florida, and northward. Aug. and Sept. 15. E. pubentissima, Michx. "Perennial, erect, very pubescent; stem somewhat dichotomous; leaves opposite, sessile, oval, slightly cordate, obtuse; peduncles solitary ; interior segments of the involucre (glands) white." Mi- chaux. — "Pine barrens in the middle districts of Georgia and Carolina. — Leaves nearly 1' long. Flowers in the forks ; peduncles nearly as long as the leaf." Elliott. ( * ) 16. E. glabella, Swartz ? Stem stout, smooth, ascending, alternately branching or forking from the base, purple ; leaves very numerous, somewhat fleshy, nearly sessile, oblong-ovate, cordate, acute, entire, with the margins invo- lute, the uppermost crowded ; involucres in dense terminal clusters ; glands pel- tate, orbicular, bordered by a white appendage ; capsule smooth, acute-angled ; seed bluish, faintly rugose. — Sandy sea-shore, South Florida. — Stem 1° high. Leaves 3" - 5" long. Stipules fringed. 17. E. pilulifera, L. Pubescent; stem erect, forking from the base; leaves short-petioled, oblong-ovate, oblique, acute at each end, serrate ; invo- lucres minute, in dense terminal short-stalked clusters ; glands without appen- dages ; capsule acute-angled, hairy ; seeds faintly rugose. — South Florida. — Stem 4'- 6' high. Leaves 5"- 8" long. * * Stems prostrate, diffuse : leaves small : involucres small and mostly crowded near the summit of the branches. 18. E. maculata, L. Pubescent; leaves oblong, serrate, oblique at the base, petioled, often blotched with purple ; stipules 2-parted ; capsule acute- angled, hairy ; appendages of the glands transversely oblong, white ; seed 4- angled, smooth, faintly wrinkled or pitted on the concave sides. (E. depressa, Torr.) — Cultivated ground and waste places, very common. June -Oct. — Stems 6' - 1 2' long. Leaves 3" - 4" long. 19. E. insequilatera, Sender. Smooth; leaves oval or obovate, oblique and acute or obtuse at the base, obscurely serrulate, petioled ; stipules ovate, entire or sparingly short-fringed ; appendages of the glands white, transversely oblong ; capsule smooth, acute-angled ; seed 4-angled, granular-roughened and faintly wrinkled on the sides. — South Florida. May -Oct. — Stems 6' -12' long. Leaves 2" - 5" long. 404 EUPHORBIACE^. (SPURGE FAMILY.) 20. E. cordifolia, Ell. Smooth ; leaves petioled, oval or roundish, entire, obtuse, cordate or truncate and oblique at the base ; stipules slender, deeply parted into long capillary segments ; appendages of the glands conspicuous, oblong or roundish, white ; capsule smooth, acute-angled ; seed 4-angled, smooth and even. — Sandy pine barrens, Florida to South Carolina, and westward. — July - Sept. — Stems 6' - 1 8' long. Leaves 4" - 6" long, pale green. 21. E. polygonifolia, L. Smooth and somewhat fleshy ; leaves oblong or linear-oblong, entire, oblique, obtuse or slightly cordate at the base, petioled ; stipules by pairs, 2 - 3-parted ; glands of the involucre slightly margined by the narrow appendages, rather shorter than the subulate obtuse lobes ; capsule smooth, acute-angled ; seed large, obovate, not angled, smooth and even. — Drifting sands along the coast, Florida, and northward. July -Oct. — Stems 4'- 12' long. Leaves £' long. Involucres densely bearded within. Seed whitish. 2. HIPPOMANE, L. Flowers monoecious, apetalous, in thick cylindrical spikes. Sterile flowers clustered in the axil of a broad entire bract. Calyx top-shaped, 2-lobed. Sta- mens 2, exserted : anther-cells separate. Fertile flower solitary at the base of the spike. Calyx 3-parted, many-bracted. Ovary sessile, 6-7-celled. Style short and thick : stigmas 6-7, acute, spreading. Fruit fleshy, of few woody 1-seeded indehiscent carpels. — A small tree, with milky poisonous juice, and short and thick branches. Leaves alternate, stipulate, petioled, ovate, serrulate, acute or acuminate, smooth, approximate at the summit of the branches. Peti- oles biglandular at the apex. Spikes greenish. 1. H. Mancinella, L. — South Florida. — Branches roughened with the scars of the deciduous leaves. Leaves l'-2' long. Spikes 2' long, terminal, solitary. Clusters of flowers with a gland-like bract on each side. Fruit re- sembles an apple. 3. STILLINGIA, Gard. Flowers monoecious, apetalous, spiked. Sterile flowers clustered, cup-shaped, 2-4-toothed or crenate. Stamens 2 - 3, exserted : anthers erect. Fertile flow- ers few at the base of the spike. Calyx 3-lobed. Style short : stigmas 3, entire, spreading. Capsule roundish, of three 1-celled 1-seeded 2-valved carpels. — Smooth herbs, shrubs, or trees, with milky juice. Leaves alternate, stipulate. Bracts with a fleshy gland on each side. 1. S. sylvatica, L. (QUEEN'S DELIGHT) Herbaceous ; stems clustered, erect or ascending from a thick woody root, umbellately branched : leaves some- what crowded, nearly sessile, thickish, varying from linear-lanceolate to obovate, obtuse or acute, crenate-serrulate ; spikes yellowish, terminal, and in the forks of the stem, longer than the leaves ; glands cup-shaped ; stamens 2 ; capsule roughish ; seed globose. — Light dry soil, Florida to North Carolina, and west- ward. April - Sept. — Stems 1° - 3° high. Leaves 1 ' - 2' long. Spikes 2' - 3' long. EUPHORBIACE^E. (SPURGE FAMILY.) 405 2. S. aquatica, n. sp. Shrubby ; stem single, erect from a fibrous spongy root, umbellately or alternately branched above, thickened near the base ; leaves lanceolate, mostly acute, tapering at each end, short-petioled, sharply serrulate, the uppermost yellowish ; stipules bristly ; spikes mostly shorter than the leaves, terminal and in the forks of the stem ; glands peltate ; stamens 2 ; capsule smooth; seeds globose, pitted, silvery -coated. — Pine-barren ponds, Florida to South Carolina. May - Sept. — Stem 3° - 6° high. Leaves 2' - 4' long. 3. S. ligustrina, Michx. Shrubby ; branches alternate, slender ; leaves petioled, ovate-lanceolate or oblong-ovate, mostly obtuse, narrowed at the base, entire ; stipules ovate ; spikes short, often by pairs, shorter than the leaves, lat- eral and terminal ; stamens 3 ; capsule and oval seed smooth. — River-swamps, Florida to North Carolina, and westward. May -Aug. — Shrub 6°- 12° high. Branches spreading. Leaves l'-3' long. 4. S. sebifera, Michx. Arborescent; leaves long-petioled, rhomboidal, acuminate, entire ; spikes terminal, densely flowered ; sterile flowers pedicelled ; calyx 4-toothed ; stamens 2 ; capsule roughish ; seeds white. — Georgia and South Carolina, near the coast ; introduced from China. June and July. — A tree 20° - 40° high. 4. EXCCECABIA, L. Flowers monoecious or dioscious, apetalous. Sterile flowers in cylindrical spikes, sessile. Calyx 3-parted. Stamens 2-4, partly monadelphous : anthers pendulous. Fertile flowers few or solitary at the base of the sterile spike, sessile or peduncled. Calyx 3-sepalous ; style 3-parted : stigmas entire, spreading. Capsule of three 1-celled, 1 -seeded, 2-valved carpels. — Shrubs or trees, with milky juice, and alternate serrate or crenate leaves. 1. E. lucida, Swartz. Smooth; leaves coriaceous, petioled, obovate or oblong, obtuse or emarginate, crenate ; fertile flowers solitary or by pairs, long- peduncled, nodding ; capsule round-angled, smooth, like the ovoid seed. — South Florida. — - Tree 30° - 40° high. Leaves 1 ' - 1£' long. 5. ACALYPHA, L. Flowers monoecious, apetalous, in axillary and terminal spikes. Staminate flowers clustered, minutely bracted. Calyx 4-parted. Stamens 8-16, with the filaments united at the base ; anthers pendulous. Pistillate flowers at the base of the staminate ones, or on separate spikes, surrounded by a leafy toothed bract. Calyx 3-parted. Styles 3, many-cleft. Capsule roundish, of three 1-celled, 1-seeded, 2-valved carpels. — Herbs, with watery juice, and alternate serrate leaves. * Staminate and pistillate flowers on the same spike. 1. A. Virginica, L. Annual, smoothish or hairy; stem erect, branched ; leaves thin, long-petioled, rhombic-ovate or oblong-ovate, acute, coarsely sen-ate above the middle ; staminate spikes few-flowered, mostly shorter than the large 5 - 9-lobed bracts, with 1-3 pistillate flowers at the base ; capsule pubescent. — 406 EUPHORBIACE^E. (.SPURGE FAMILY.) Fields and around dwellings, Florida, and northward. July - Sept. — Stem 1° - 2° high. Leaves, with the petiole, 4' - 5' long. 2. A. gracilens, Gray. Annual, downy ; stem slender, erect or ascend- ing; leaves short-petioled, lanceolate, obscurely serrate or entire; staminate spikes mostly many-flowered and longer than the ovate-sen-ate or toothed bracts, with 1 - 3 pistillate flowers at the base ; capsule hairy. — Sterile soil, Florida, and northward. July - Sept. — Stem 6'- 18' high. Leaves !'-!£' long. 3. A. COrchorifolia, Willd. Perennial ; stems several from a thick and woody root, prostrate, pubescent, simple or sparingly branched ; leaves short- petioled, ovate and oblong, obtuse, crenate, hairy ; pistillate flowers numerous, crowded at the base of the slender staminate spike, each surrounded by a round-ovate hairy toothed bract ; capsule bristly; seed ovoid, smooth. — South Florida. — Stems 4' -6' long. Leaves rigid, 6" -8" long. Spikes mostly terminal. * * Staminate and pistillate flowers on separate spikes. 4. A. Caroliniana, Walt. Annual ; stem erect, much branched, pubes- cent ; leaves thin, smooth, cordate-ovate, sharply serrate, long-pe^ioled ; stami- nate spike lateral, small, the minute white flowers pedicelled ; pistillate spike terminal, stout, many-flowered ; bracts cut into several subulate lobes ; capsule bristly ; seeds silvery, pitted. — Cultivated ground, Florida to Mississippi, and northward. July - Sept. — Stem 1 ° - 2° high. Leaves 2' - 3' long. 6. TBAGIA, Plum. Flowers monoecious, apetalous, in slender racemes. Sterile flowers few or numerous, caducous. Calyx 3-4-parted. Stamens 2-4, with short and sepa- rate filaments. Fertile flowers few or solitary at the base of the raceme. Calyx 5 - 8-parted. Style 3-cleft : stigmas entire. Capsule bristly, of three globose 1 -celled, 1 -seeded, 2-valved carpels. — Pubescent or bristly herbs, with watery juice. Leaves alternate. Kacemes opposite the leaves and terminal. Bracts small, entire, persistent. Flowers minute, greenish. 1. T. urens, L. Low, downy or hairy; stem at length much branched; leaves nearly sessile, varying from broadly ovate or oblong-ovate, and serrate or toothed throughout, or only at the apex, to linear and entire, obtuse, paler be- neath ; racemes shorter than the leaves and few-flowered, or elongated and many-flowered. (T. linearifolia, EIL, the narrow-leaved form.) — Dry sandy soil, Florida, and northward. May -Aug. 1J. — Stem 6'- 12' high. Leaves 1'- 2' long. 2. T. urticifolia, Michx. Bristly, with stinging hairs ; stem erect, spar- ingly branched ; leaves petioled, deltoid-ovate or oblong, coarsely serrate, trun- cate or cordate at the broad base, pale beneath , racemes shorter than the leaves, the sterile flowers somewhat crowded; capsule very bristly. — Dry soil, Florida to North Carolina, and westward. June -Sept. 1J. — Stems l°-2° high. Leaves 1 ' - 2' long. EUPHORBIACE^l. (SPURGE FAMILY.) 407 7. CBOTON, L. Flowers monoecious, in spikes or racemes. Calyx of the sterile flowers 4-6- cleft or 4 - 6-parted. Petals 4-6 (wanting in No. 1 ). Stamens 5 - 20, distinct : anthers erect, introrse. Glands as many as the calyx-lobes and opposite them. Fertile flowers at the base of the sterile spike. Calyx 5 - 8-cleft or 5 - 8-parted. Petals minute or wanting. Styles 2-3, once - thrice 2-cleft. Capsule of 3 (rarely 1-2) 1-celled, l-seeded, 2-valved carpels. Glands as many as the calyx- lobes or none. — Herbs or shrubs, with watery juice, stellate pubescence, and alternate petioled leaves. Flowers terminal, and at the divisions of the stem. ' * Styles very short: stigmas 18-20: petals none: stamens mostly 12: capsule 3-celled. 1. C. rnaritimum, Walt Herbaceous ; whole plant covered with a rough scurfy stellate and somewhat hoary pubescence ; stem stout, bushy, umbellately branched ; leaves thick, long- petioled, ovate, obtuse, entire, rounded or slightly cordate at the base, hoary beneath ; spikes long-peduncled, capitate, few-flowered, the sterile and fertile ones mostly separate; calyx 5-cleft, with ovate-obtuse lobes ; capsule much longer than the calyx ; seeds ovoid, mottled. — Drifting sands along the coast, Florida to North Carolina. July - Oct. — Stem 2° - 3° high. Leaves 2' - 3' long. Flowers occasionally polygamous. * * Styles 3, twice 2-parted or 2-cleft : stigmas 12 : petals of the sterile flowers 5-6, of the fertile none: stamens 8 - 15 : capsule 3-celled, 2. C. balsamiferum, Willd. Shrubby ; stem smooth, whitish ; branches stellate-pubescent, roughish; leaves slender-petioled, ovate, acute, crenulate, sprinkled with rigid stellate hairs, hoary when young ; spikes woolly, at length elongated ; sterile flowers numerous, the fertile ones few ; calyx of the sterile flower 5-parted, longer than the woolly-margined petals ; style twice 2-parted ; the divisions long, filiform ; stamens about 15 ; capsule much longer than the calyx; seed ovoid, smooth. — South Florida. — Shrub l°-2° high. Leaves thin, !'-!£' long. 3. C. ElliOttii. Annual, stellate-tomentose throughout; stem slender, erect, umbellately much branched ; leaves short-petioled, lanceolate or oblong, entire, obtuse at each end, green above, pale beneath, the lowest scattered, the others mostly crowded at the divisions of the stem and summit of the branches ; sterile flowers few, minute ; calyx 5-parted, unequal, longer than the petals ; stamens 8 - 10 ; fertile flowers several, clustered ; calyx 5 - 8-parted, with oblong obtuse lobes, as long as the capsule ; style twice 2-parted : seeds oval, smooth, flattened on the inner face. ( C. ellipticum, Ell.} — Pine barrens, Florida to South Carolina. July - Sept. — Stem 2° - 3° high. Leaves 1 £' - 2' long. 4. C. argyranthemum, Michx. Herbaceous, perennial, covered through- out with stellate silvery scales ; stem erect, umbellately branched ; leaves obo- vate or oblong, obtuse, entire, silvery beneath, narrowed into a petiole ; racemes sessile, oblong, obtuse; the fertile flowers numerous and crowded; calyx 5-6- parted, with the lobes acute; stamens 10-12, hairy; styles long and slender, 4-cleft at the apex ; capsule much longer than the calyx. — Dry sandy pine 406 EUPHORBIACEJE. (SPURGE FAMILY.) Fields and around dwellings, Florida, and northward. July - Sept. — Stem 1° - 2° high. Leaves, with the petiole, 4' - 5' long. 2. A. gracilens, Gray. Annual, downy ; stem slender, erect or ascend- ing; leaves short-petioled, lanceolate, obscurely serrate or entire; staminate spikes mostly many-flowered and longer than the ovate-serrate or toothed bracts, with 1 -* 3 pistillate flowers at the base ; capsule hairy. — Sterile soil, Florida, and northward. July - Sept. — Stem 6' -18' high. Leaves I'-l^' long. 3. A. corchorifolia, Willd. Perennial ; stems several from a thick and woody root, prostrate, pubescent, simple or sparingly branched ; leaves short- petioled, ovate and oblong, obtuse, crenate, hairy ; pistillate flowers numerous, crowded at the base of the slender staminate spike, each surrounded by a round-ovate hairy toothed bract ; capsule bristly; seed ovoid, smooth. — South Florida. — Stems 4' -6' long. Leaves rigid, 6" -8" long. Spikes mostly terminal. * * Staminate and pistillate flowers on separate spikes. 4. A. Caroliniana, "Walt. Annual ; stem erect, much branched, pubes- cent ; leaves thin, smooth, cordate-ovate, sharply serrate, long-pe±ioled ; stami- nate spike lateral, small, the minute white flowers pedicelled ; pistillate spike terminal, stout, many-flowered ; bracts cut into several subulate lobes ; capsule bristly ; seeds silvery, pitted. — Cultivated ground, Florida to Mississippi, and northward. July - Sept. — Stem 1 ° - 2° high. Leaves 2' - 3' long. 6. TRAGIA, Plum. Flowers monoecious, apetalous, in slender racemes. Sterile flowers few or numerous, caducous. Calyx 3 - 4-parted. Stamens 2-4, with short and sepa- rate filaments. Fertile flowers few or solitary at the base of the raceme. Calyx 5 - 8-parted. Style 3-cleft : stigmas entire. Capsule bristly, of three globose 1-celled, 1-seeded, 2-valved carpels. — Pubescent or bristly herbs, with watery juice. Leaves alternate. Kacemes opposite the leaves and terminal. Bracts small, entire, persistent. Flowers minute, greenish. 1. T. urens, L. Low, downy or hairy; stem at length much branched; leaves nearly sessile, varying from broadly ovate or oblong-ovate, and serrate or toothed throughout, or only at the apex, to linear and entire, obtuse, paler be- neath ; racemes shorter than the leaves and few-flowered, or elongated and many-flowered. (T. linearifolia, Ell., the narrow-leaved form.) — Dry sandy soil, Florida, and northward. May -Aug. 1J. — Stem 6'- 12' high. Leaves 1'- 2' long. 2. T. urticifolia, Michx. Bristly, with stinging hairs ; stem erect, spar- ingly branched ; leaves petioled, deltoid-ovate or oblong, coarsely serrate, trun- cate or cordate at the broad base, pale beneath , racemes shorter than the leaves, the sterile flowers somewhat crowded ; capsule very bristly. — Dry soil, Florida to North Carolina, and westward. June -Sept. U— Stems l°-2° high. Leaves 1'- 2' long. EUPHORBIACK-E. (SPURGE FAMILY.) 407 7. CROTON, L. Flowers monoecious, in spikes or racemes. Calyx of the sterile flowers 4-6- cleft or 4 - 6-parted. Petals 4-6 (wanting in No. 1 ). Stamens 5 - 20, distinct : anthers erect, introrse. Glands as many as the calyx-lobes and opposite them. Fertile flowers at the base of the sterile spike. Calyx 5 - 8-cleft or 5 - 8-parted. Petals minute or wanting. Styles 2-3, once - thrice 2-cleft. Capsule of 3 (rarely 1-2) 1 -celled, I -seeded, 2-valved carpels. Glands as many as the calyx- lobes or none. — Herbs or shrubs, with watery juice, stellate pubescence, and alternate petioled leaves. Flowers terminal, and at the divisions of the stem. ' * Styles very short: stigmas 18-20: petals none: stamens mostly 12 : capsule ^-celled, 1. C. maritimum, Walt Herbaceous ; whole plant covered with a rough scurfy stellate and somewhat hoary pubescence ; stem stout, bushy, umbellately branched ; leaves thick, long- petioled, ovate, obtuse, entire, rounded or slightly cordate at the base, hoary beneath ; spikes long-peduncled, capitate, few-flowered, the sterile and fertile ones mostly separate; calyx 5-cleft, with ovate-obtuse lobes ; capsule much longer than the calyx ; seeds ovoid, mottled. — Drifting sands along the coast, Florida to North Carolina. July-Oct — Stem 2° -3° high. Leaves 2' - 3' long. Flowers occasionally polygamous. * * Styles 3, twice ^-parted or 2-deft: stigmas 12 : petals oj*the sterile flowers 5-6, of the fertile none: stamens 8 - 15 : capsule 3-celled. 2. C. balsamif er um, Willd. Shrubby ; stem smooth, whitish ; branches stellate-pubescent, roughish; leaves slender-petioled, ovate, acute, crenulate, sprinkled with rigid stellate hairs, hoary when young ; spikes woolly, at length elongated ; sterile flowers numerous, the fertile ones few ; calyx of the sterile flower 5-parted, longer than the woolly-margined petals ; style twice 2-parted ; the divisions long, filiform ; stamens about 15 ; capsule much longer than the calyx; seed ovoid, smooth. — South Florida. — Shrub l°-2° high. Leaves thin, !'-!£' long. 3. C. Elliottii. Annual, stellate-tomentose throughout; stem slender, erect, nmbellately much branched ; leaves short-petioled, lanceolate or oblong, entire, obtuse at each end, green above, pale beneath, the lowest scattered, the others mostly crowded at the divisions of the stem and summit of the branches ; sterile flowers few, minute ; calyx 5-parted, unequal, longer than the petals ; stamens 8- 10 ; fertile flowers several, clustered ; calyx 5 -8-parted, with oblong obtuse lobes, as long as the capsule ; style twice 2-parted : seeds oval, smooth, flattened on the inner face. (C. ellipticum, Ett.) — Pine barrens, Florida to South Carolina. July - Sept. — Stem 2° - 3° high. Leaves 1 £' - 2' long. 4. C. argyranthemum, Michx. Herbaceous, perennial, covered through- out with stellate silvery scales ; stem erect, umbellately branched ; leaves obo- vate or oblong, obtuse, entire, silvery beneath, narrowed into a petiole ; racemes sessile, oblong, obtuse ; the fertile flowers numerous and crowded; calyx 5 -6- parted, with the lobes acute; stamens 10-12, hairy, styles long and slender, 4-cleft at the apex ; capsule much longer than the calyx — Dry sandy pine 408 EUPHORBIACE^:. (SPURGE FAMILY.) barrens, Georgia and Florida. June -Sept. — Stem 6' -12' high. Leaves !'-!£' long. * * * Styles 3, 2-cleft : stigmas 6 : petals of the sterile flowers longer than the calyx, of the fertile ones minute, subulate: stamens 8 : capsule 3-celled. 5. C. glandlllosum, L. Annual, rough with bristly hairs ; stem umbel- lately branched ; leaves oblong, obtuse, coarsely serrate, mostly crowded at the divisions of the stem and summit of the branches ; the slender petiole biglandu- lar at the apex ; spikes small ; sterile flowers minute, white ; calyx 4-parted ; petals 4 ; fertile flowers few, with the calyx 5-parted. — Dry waste places, Flor- ida to North Carolina, and westward. July - Sept. — Stem 6' - 1 8' high. * =* * * Styles 2, 2-parted : stigmas 4 : petals 5 in the sterile flowers, none in the fertile :, stamens 5-10: capsule 1 - 2-celled. 6. C. monanthogynum, Michx. Annual ; stem erect, twice or thrice umbellately branched, the spreading forking branches, like the leaves and racemes, stellate-tomentose ; leaves on slender petioles, ovate or oblong, entire, obtuse, whitish beneath ; racemes in the forks of the branches, few-flowered ; the sterile flowers corymbose ;, the fertile (1-2) nodding. — Dry sterile soil, South Florida to North Carolina. June - Sept. — Stem 1° high. Leaves 1' long. 8. CBOTONOPSIS, Michx. Flowers monoecious, in terminal and axillary clusters. Calyx of the sterile flowers 5-parted. Petals and stamens 5. Filaments separate, dilated upward. Fertile flowers below the sterile. Calyx 3 -5-parted. Petals none. Petal-like glands 5, opposite the calyx-lobes. Ovary 1 -celled, 1-ovuled. Stigmas 3, each 2-cleft. Fruit globose, indehiscent, 1 -seeded. — A low and slender branching annual. Leaves linear or lanceolate, short-petioled, entire, green and hairy above, the lower surface, like the branches, covered with silvery scales. Flowers minute. 1. C. linearis, Michx. — Dry sandy soil, Florida to North Carolina. Aug. -Sept. — Stem 6' -12' high, alternately branched or forking. Leaves £'- 1' long, alternate or opposite. 9. APHOBA, Nutt. Flowers monoecious, in axillary spikes. Sterile flowers few. Calyx 5-parted. Corolla of 5 spatulate petals alternating with 5 flattened glands, as long as the calyx. Stamens 10-12, in 2 whorls of 5-6 each, monadelphous below. Fer- tile flowers like the sterile, but the petals shorter than the calyx. Style 3-parted, the divisions 2-cleft. Capsule of three 1-celled, 1-seeded, 2-valved carpels. — Shrubs, or herbs, with watery juice. 1. A. Blodgettii, Torr. Branches smoothish ; leaves alternate, oval or oblong, mostly acute, sharply serrulate, smooth, or sprinkled with simple ap- pressed hairs, abruptly short-petioled ; sterile flowers 3-5, fertile mostly solitary ; EUPHORBIACE^:. (SPURGE FAMILY.) 409 calyx-lobes lanceolate, acute ; petals greenish-white ; capsule rough-hairy ; seed globose, wrinkled. — South Florida. — Shrub 1 ° - 2° high. Leaves I' -2' long. 10. CNIDOSCOLUS, Pohl. Flowers monoecious, apctalous, cyraose. Calyx corolla-like. Calyx of the sterile flower salver-shaped, 5-lobed. Stamens 10, the 5 inner ones with mona- delphous filaments. Fertile flowers intermingled with the sterile ones. Calyx of 5 sepals, convolute in the bud. Styles 3, many-parted. Capsule of three 1-cellcd, 1 -seeded, 2-valved carpels. — Herbs or shrubs, with alternate leaves, and white flowers. 1. C. stimulosus, Gray. Herbaceous, bristly with stinging hairs; stem, erect, simple or branched ; leaves long-petioled, round-cordate in outline, pal- mately 3 -5-lobed or parted, the divisions toothed, pinnatifid, or somewhat bipinnatifid, often discolored ; calyx showy ; capsule oblong ; seed oblong, smooth, spotted. (latropha stimulosa, Michx.) — Dry pine barrens, Florida to North Carolina. April -Sept. 1|. — Stem £° - 2° high. Flowers sometimes dioecious. 11. RICINUS, Tourn. CASTOR-OIL PLANT. Flowers monoecious, apetalous, in a dense oblong panicle, the upper ones fertile. Calyx 3 - 5-parted. Corolla none. Stamens numerous ; the filaments much branched : anther-cells distinct, pendulous. Styles 3, 2-parted. Capsule spiny or bristly, of 3 oblong 1 -celled, 1 -seeded, 2-valved carpels. — Herbs, or (tropical) shrubs or trees, with petioled peltate lobed leaves. Panicles lateral and terminal. 1. B,. COmniunis, L. Stem large, glaucous ; leaves orbicular in outline, palmately 7 - 9-lobed ; the lobes oblong or ovate, acuminate, unequally serrate, smooth ; petioles glandular ; panicles in the forks of the stem, and opposite the leaves, dense, glaucous. Capsules oblong, spiny. — Waste places. Introduced. June - Oct. (j) — Stem 3° - 10° high. Leaves 1° in diameter. Stipules large, deciduous. Panicle 6'- 12' long. 12. PHYLLANTHUS, Swartz. Flowers monoecious, apetalous, axillary. Calyx 5-6-parted. Stamens 3, monadelphous. Glands 5-6. Ovary 3-celled, with two ovules in each cell. Styles 3, 2-cleft. Capsule globose, of three 1-celled, 2-seeded, 2-valved carpels. — Smooth herbs, with 2-ranked leaves and branches. Flowers small, greenish. 1. P. Carolinensis, Walt. Annual; branches erect-spreading; leaves oblong, oval, or obovate, entire, short-petioled ; flowers mostly by pairs, one sterile, the other fertile, on short nodding pedicels ; calyx 6-parted, the lobes oblong, obtuse, strongly 1-nerved, membranous on the margins ; capsule smooth; seed semicircular, 3-angled, striped with lines of minute raised points. — Low ground, Florida, and northward. Aug. -Sept. — Stem 8' -16' high. Leaves J'-l'long. 35 412 ITRTICACE^E. (NETTLE FAMILY.) with a single erect orthotropous ovule. Stigma simple or tufted. Ache- nium commonly enclosed in the dry persistent calyx. Embryo straight, in the axis of fleshy albumen. Synopsis. * Plants armed with stinging hairs. 1. URTICA. Stamens 4. Stigma tufted. Achenium straight. 2. LAPORTEA. Stamens 5. Stigma subulate. Achenium oblique. * * Plants destitute of stinging hairs. •«- Flowers in cymose clusters. 3. PILEA. Clusters naked. Calyx-lobes unequal. Leaves opposite. 4. PARIETARIA. Clusters involucrate. Calyx-lobes equal. Leaves alternate. •i- -t- Flowers in spiked clusters. 6- BCEHMERIA. Stigmas subulate, leaves opposite or alternate. 1. ITRTICA, Tourn. NETTLE. Flowers monoecious or dioecious. Calyx of the sterile flower 4-parted. Sta- mens 4, inserted around the abortive ovary. Calyx of the fertile flower 4-sepa- lous, unequal ; the inner ones dilated in fruit, and enclosing the achenium. Stigma sessile, tufted. Achenium straight, ovate, smooth, compressed. — Herbs, with stinging hairs, opposite leaves, and greenish flowers, in panicled spikes or close clusters. * Flowers in panicled or simple spikes, 1. IT. gracilis, Ait. Stem tall, 4-angled, smoothish, slender ; leaves long- petioled, ovate-lanceolate, coarsely serrate, acute, rounded at the base, 3-5- nerved, smoothish, the petioles bristly ; spikes very slender, loosely panicled. (U. procera, Willd.) — Low ground in the upper districts, and northward. July and Aug. 1|. — Stem 3° - 4° high, mostly simple. Leaves thin, 4' -6' long. 2. U. dioica, L. Hispid throughout; stem 4-angled, pubescent above, branching ; leaves rather short-petioled, ovate, cordate, acuminate, coarsely ser- rate, pubescent beneath ; spikes much branched ; flowers often dioecious. — Waste places. In Carolina, Pursh. Introduced. June -Aug. 1J. — Stem 2°- 3° high. Leaves 3' -4' long, thicker than in No. 1, and flowers larger. 3. IT. capitata, Willd. Stem 4-angled, roughish ; leaves large, long- petioled, rough, oblong-ovate, slightly cordate, coarsely serrate, 3-nerved ; those on the branches alternate ; spike solitary, leafy at the summit. — Wet shaded places, North and South Carolina, Curtis, Elliott. July and Aug. — Stem 3° - 5° high. # * Flowers in simple clusters shorter than the petioles. 4. TJ. urens, L. Stem 4-angled, hairy ; leaves ovate, coarsely serrate, 5-nerved, hairy ; clusters by pairs in each axil, loose, peduncled. — Damp soil. Introduced. Dec. -Feb. (I) — Stem 1° high. 5. IT. Chamsedryoides, Pursh. Stem smooth ; leaves small, nearly ses- sile, ovate, coarsely serrate, hairy beneath, hairy and bristly above; clusters nearly sessile, globose, dense ; calyx hairy. — St. Simon's Island, Georgia, Elliott. Feb. and March. — Stem 4' - 6' high. URTICACE^E. (NETTLE FAMILY.) 413 2. LAPORTEA, Gaudich. Flowers monoecious or dioecious. Calyx of the sterile flowers 5-parted. Stamens 5, inserted around the abortive ovary. Calyx of the fertile flowers 4-sepalous, the 2 inner ones larger. Stigma subulate, hairy on one side. Achenium oblique, tubercular-roughened. — Herbs, with stinging hairs, alter- nate long-petioled serrate leaves, and minute flowers in spreading cymes. 1. L. Canadonsis, Gaudich. Stem hispid ; leaves ovate, acuminate, rounded or cordate at the base ; the veins and petioles hispid ; cymes very slender, single or by pairs, the upper mostly fertile, the lower sterile. (Urtica Canadensis and U. divaricata, L.) — Low shaded places, Florida, and north- ward. July and Aug. 1J. — Stem 2° - 4° high. 3. PILEA, Lindl. Flowers monoecious or dioecious. Calyx of the sterile flower 3 - 4-parted. Stamens 3-4. Calyx of the fertile flowers 3-lobed, the lobes unequal or nearly equal, commonly with an inflexed scale-like sterile stamen at the base of each. Stigma sessile, tufted. Achenium ovate, compressed, straight. — Low herbs, destitute of stinging hairs. Leaves opposite, long-petioled. Flowers in axillary cymose clusters. 1. P. pumila, Gray. Stem angular, simple, smooth, pellucid; leaves membranaceous, ovate or elliptical, acuminate, coarsely serrate, 3-nerved, slight- ly hairy above ; cymes much shorter than the petiole. (Urtica pumila, L.) — Wet shaded places, Florida, and northward. July- Sept. (£) — Stem 6' -12' high. Upper leaves 1'- 2' long, the lower not longer than the petiole. 2. P. herniarioides, Lindl. Stems erect or creeping, branched, tender, pellucid ; leaves small, round-obovate, entire, opaque, transversely marked on the upper surface with white raised lines ; clusters shorter than the petiole ; flowers minute. — Shaded moist places, Key West. November. — Stems 2' -4' long. Leaves l"-2" long, rather longer than the petiole. Achenium very minute, oblong, terete. 4. PARIETARIA, Tourn. PELLITORT. Flowers polygamous, in axillary cymose clusters, supported by a bract-like' involucre. Calyx of the sterile flowers 4 - 5-sepalous. Stamens 4-5, inserted around the abortive ovary. Calyx of the fertile flowers 4-parted. Stigma tufted. Ovary surrounded by four sterile, or sometimes perfect, stamens. Ache- nium ovoid. — Weak downy herbs, without stinging hairs. Leaves alternate, entire, long-petioled. Flowers minute, greenish. 1. P. Pennsylvania a, Muhl. Pubescent with straight hairs; stem sim- ple or sparingly branched; leaves thin, oblong-lanceolate, obtuse, roughened with minute elevated dots ; clusters dense ; flowers shorter than the involucre. — Shaded rocks in the upper districts. May - July. © — Stem 4' - 12' high. Leaves 6" -9" long. 414 CANNABINACEJS. (HEMP FAMILY.) 2. P. debilis, Forst. Pubescent with straight and hooked hairs inter- mixed; stem much branched, pellucid; leaves ovate, mostly acuminate, but obtuse, roughened with elevated dots ; clusters loose, spreading ; flowers as long as the involucre. (P. Floridana, Nutt.) — Damp shaded sandy soil near the coast, Florida to North Carolina. June -Aug. (f) — - Stem |°- l£° long. Leaves 6" - 9" long, about the length of the slender petiole. 5. BCEHMEBIA, Jacq. FALSE-NETTLE. Flowers monoecious or dioecious, in spiked clusters. Calyx of the sterile flowers 4 - 5-cleft. Stamens 4-5. Calyx of the fertile flowers tubular, 4 - 5 toothed or entire. Stigma subulate, hairy. Achenium elliptical, enclosed in the persistent calyx. — Hough herbs with alternate or opposite petiolcd leaves. 1. B. cylindrica, Willd. Pubescent and rough with straight and hooked hairs ; leaves opposite and alternate, ovate and ovate-lanceolate, acuminate, ser- rate, rounded and 3-nerved at the base, on long or short petioles ; spikes axil- lary, mostly leafy at the summit, the fertile ones compactly flowered, short ; the sterile interrupted, and sometimes longer than the leaves. (B. lateriflora, Muhl.) — Swampy thickets, Florida, and northward. July- Sept. )J. — Stem l°-3° high, mostly simple. Leaves 2f-5' long. ORDER 123. CANNABINACE^E. (HEMP FAMILY.) Erect or twining herbs, with opposite incised or lobed and stipulate leaves, and dioecious flowers. Sterile flowers racemose or panicled. Ca- lyx 5-sepalous. Stamens 5, opposite the sepals, not inflexed in the bud. Fertile flowers in bracted spikes. Calyx 1-leaved, embracing the 1-celled ovary. Ovule solitary, erect. Stigmas 2, subulate, pubescent. Fruit in- dehiscent. Albumen none. Embryo coiled or curved. 1. HTJMULUS, L. HOP. Sterile flowers panicled. Fertile flowers in short axillary and solitary spikes. Bracts leafy, imbricated, 2-flowered, forming in fruit a membranaceous cone. Calyx enlarged in fruit. Embryo spirally coiled. — A rough perennial twining herb, with cordate 3-5-lobed leaves, and greenish-yellow flowers. 1. H. Lupulus, L. — Low grounds along the mountains, Georgia, and northward. June and July. — Stem 6° -10° high. Leaves petioled, serrate. Achenium covered with resinous yellowish odorous grains. ORDER 124. MORACE^3. (MULBERRY FAMILY.) Trees or shrubs, with milky juice, alternate leaves, with large decidu- is stipules, and monoecious or dioecious flowers, crowded in spikes or MORACE^E. (MULBERRY FAMILY.) 415 heads, or enclosed in the fleshy receptacle. — Calyx of the sterile flowers 3 — 4-lobed. Stamens 3-4, inserted on the base of the calyx. Filaments inflexed in the bud, elastic. Calyx of the fertile flowers 3 - 5-sepalous. Ovary 1 - 2-celled, 1 - 2-ovuled. Styles 2. Achenium 1-seeded. Embryo curved, in fleshy albumen. 1. MOBUS, Tourn. MULBERRY. Flowers monoecious, spiked ; the sterile and fertile flowers in separate spikes. Calyx 4-parted. Stamens 4. Ovary 2-celled. Styles filiform. Achenium ovate, compressed, covered by the succulent berry-like calyx. — Trees, with rounded leaves, and axillary spikes. 1. M. rubra, L. Leaves cordate-ovate, acuminate, serrate, petioled, rough above, white tomentose beneath, on young shoots 3 - 5-lobed ; stipules linear ; sterile spikes slender, drooping ; the fertile ones ovoid or oblong, resembling a blackberry in fruit. — Rich woods, Florida, and northward. March. — A small tree. 2. M. alba, L. Leaves cordate-ovate, acute, serrate, oblique at the base, smooth and shining, sometimes lobed ; fruit whitish. — Around dwellings. In- troduced.— A small tree. 2. FICTJS, Tourn. FIG. Flowers monoecious or dioecious, lining the inside of the fleshy closed recep- tacle. Calyx of the sterile flowers 3-parted. Stamens 3. Calyx of the fertile flowers 5-cleft, pedicelled. Styles lateral, slender. Achenium fragile. Embryo hooked. — Trees or shrubs, with entire or lobed leaves, and large convolute stip- ules. Flowers axillary. 1. F. aurea, Nutt. Branches pale, smooth, furrowed; leaves smooth, coriaceous, oblong, entire, narrowed but obtuse at each end, stout-petiolcd ; re- ceptacle orange-yellow, globose, bracted, on short and thick pedicels. — South Florida. — A small tree. Leaves 3' - 4' long. Fruit about 4" in diameter. 2. F. pedunculata, Willd. Branches terete, uneven; leaves ovate or oval, coriaceous, entire, smooth, obtuse, rounded or slightly cordate at the base, slender-petioled ; receptacle yellowish, globose or obovate, slightly bracted, as long as the slender pedicels. — South Florida. — Tree 20° -40° high, multiply- ing by means of aerial roots. Leaves 2' - 2^' long, 1|' wide. Receptacle rather smaller than in No. 1. 3. F. brevifolia, Nutt. Branches smooth; leaves cordate-ovate, entire, obtuse, smooth, on short petioles ; receptacle purplish-red, depressed-globose, single, short-peduncled, with 2-cleft bracts. — South Florida, Dr. Blodyett. — A small tree. Leaves 2' long, with impressed veins. F. CARICA, L., is the commonly cultivated FIG. BROUSSONETIA PAPTRIFERA, Vent., the PAPER MULBERRY of our yards, belongs to this family. 416 ULMACE.E. (ELM FAMILY.) ORDER 125. ULMACEJE. (ELM FAMILY.) Trees, with watery juice, alternate undivided stipulate leaves, and per- fect or polygamous apetalous flowers. — Calyx 4 - 9-lobed. Stamens 4-9, inserted on the base of the calyx, erect in the bud. Ovary 1 - 2-celled. Ovules solitary, suspended. Styles 2, spreading. Fruit membranaceous or drupaceous. Embryo straight or curved, without albumen. Cotyle- dons leafy. Synopsis. * Fruit dry. Anthers extrorse. 1. TJLMUS. Flowers perfect. Ovary 2-celled. Fruit winged. 2. PLANERA. Flowers polygamous. Ovary 1-celled. Fruit wingless. * * Fruit a drupe. Anthers introrse. 8. CELTIS. Flowers polygamous. Ovary 1-celled. Cotyledons curved. 1. ULMUS, L. ELM. Flowers perfect. Calyx bell-shaped, 4 - 9-cleft. Stamens 4-9, slender, ex- serted : anthers extrorse. Ovary 2-celled. Styles short. Fruit 1-celled, 1 -seeded, surrounded by a broad membranaceous wing. Embryo straight. — Trees. Leaves short-petioled, mostly oblique, doubly serrate, straight- veined. Stipules deciduous. Flowers greenish or purplish, clustered, appearing before the leaves. 1. U. fulva, Michx. (SLIPPERY ELM.) Branchlets pubescent; leaves thick, ovate-oblong, acuminate, broadly serrate, slightly oblique at the base, very rough above, pubescent beneath ; calyx and short pedicels pubescent ; fruit orbicular, pubescent on the sides, smooth on the margins, with the obtuse teeth erect ; expanding buds rusty-tomentose. — Rich woods, West Florida, and north- ward. Feb. and March. — A small tree. Leaves 4' -8' long. Fruit 8" -9" wide. Inner bark very mucilaginous. 2. TJ. Moridana, n. sp. Branchlets smooth ; leaves thick, oblong-ovate, acute or slightly acuminate, broadly serrate, oblique at the base, smooth above, more or less pubescent beneath ; pedicels very slender, somewhat racemose, and, like the calyx, smooth ; fruit orbicular, fringed on the margins, with the short and broad teeth erect. — Banks of the Chipola River, at Marianna, "West Florida, Feb. and March. — A tree 30° - 40° high, with brittle branches. Leaves 3' - 4' long. Fruit 2" -3" in diameter. Bud-scales downy on the margins. 3. TJ. Americana, L. (ELM.) Branchlets and buds smooth; leaves thin, obovate-oblong, or oval, oblique at the base, sharply serrate, abruptly acu- minate, smooth above, pubescent, or at length smooth beneath ; pedicels clustered, slender, smooth, like the calyx ; fruit oval or obovate, downy on the margins, with the sharp teeth connivent. — Low grounds, Florida, and northward. Feb. and March. — A large tree, with spreading branches. Leaves 2' -4' long. Fruit 6" long. Var. *? aspera. Leaves larger (3' -6') on shorter petioles, oval-oblong, acu- minate, very oblique or half-cordate at the base, very rough above, pubescent PLATANACE^E. (PLANE-TREE FAMILY.) 417 beneath ; pedicels and calyx smaller. — Swamps of the Apalachicola River, Florida. Jan. and Feb. — A small tree. 4. TJ. alata, Michx. (WHAHOO.) Branches corky-winged ; leaves small, ovate-lanceolate, acute, sharply serrate, commonly even and rounded at the base, rough above, pubescent beneath, nearly sessile , flowers clustered, on slender pedicels ; fruit oval, downy on the margins. — Rich soil, Florida to North Car- olina. — A small tree. Leaves 1'- 1£' long. 2. PLANERA, Gmel. PLANER-TREE. Flowers polygamous, clustered. Calyx bell-shaped, 4 - 5-cleft. Stamens 4 - 5 : anthers extrorse. Ovary 1-celled. Styles short. Fruit nut-like, coriaceous, wingless. Embryo straight, without albumen. — Small trees, with the foliage of the Elm. 1. P. aquatica, Gmel. Leaves ovate, short-petioled, acute, serrate, rough- ish ; flowers in small roundish clusters, appearing before the leaves ; nut ovate, covered with warty scales. — River-swamps, Florida to North Carolina. Feb. and March. — A tree 20° - 30° high. Leaves 1 ' - U' long. 3. CELTIS, Tourn. NETTLE-TREE. Flowers perfect or polygamous, apetalous. Calyx of five sepals. Stamens 5 : anthers introrse. Ovary 1-celled. Styles 2, slender, pubescent. Drupe globose. Embryo curved around scanty gelatinous albumen. Cotyledons wrinkled. — Trees Leaves petioled, commonly oblique at the base. Flowers axillary, soli- tary, or few in a cluster, greenish. ' 1. C. OCCidentalis, L. Young leaves and branchlets silky; leaves (2' long) ovate, acuminate, sharply serrate, abruptly contracted at the base, soon smooth, ferrugineous beneath ; fertile flowers mostly solitary, on drooping pe- duncles ; the sterile ones 2 - 4 in a cluster ; drupe dark purple, with a thin sweet pulp. — Rich soil, Georgia, and northward. March. — A tree 40° - 60° high. — Var. INTEGRIFOLIA. (C. intcgrifolia, Nutt.) Leaves ovate or ovate-lanceolate (2' -3' long), acuminate, entire, rounded, or the lower ones cordate at the base, roughened with miuute elevated points. — Sandy soil, Apalachicola, Florida (perhaps introduced), and westward. — A small tree. Branches and leaves 2-ranked. — Var. PUMILA. (C. pumila, Pursh.) Shrubby; leaves (l'-l£' long) ovate, acute, serrate, obtuse at the base, pale beneath, very rough above ; drupe glaucous. — Shady woods, Florida to North Carolina. March and April. —Stem 5° -10° high. ORDER 126. PLATANACE^. (PLANE-TREE FAMILY.) Large trees, with alternate palmately-lobed petioled stipulate leaves, and monoecious flowers, in axillary long-peduncled globose heads. — Calyx and corolla none. Anthers on short club-shaped filaments, numerous, 418 JUGLANDACE^E. (WALNUT FAMILY.) 2-celled, adnate to the truncated connective. Ovaries numerous, obconi- cal, hairy at the base. Ovules 1-2, orthotropous, pendulous. Style sub- ulate. Nut 1-seeded. Seed cylindrical. Embryo in the axis of scarce fleshy albumen. — Flowers intermixed with copious club-shaped scales. — Consisting of the single genus. 1. PLATANUS, L. PLANE-TREE. SYCAMORE. 1. P. OCCidentalis, L. — Leaves (4' -9' wide) round-cordate, angularly lobed and toothed, covered when young with dense whitish down, soon smooth ; stipules toothed ; heads pendulous (8" -12" in diameter). — River-banks, Flor- ida, and northward. March and April. — A large tree, with the white bark separating in thin plates. ORDER 127. JUGLANDACE^J. (WALNUT FAMILY.) Trees, with alternate odd-pinnate exstipulate leaves and monoecious apetalous or minutely petalled flowers. Sterile flowers in pendulous aments. Calyx 2 - 6-parted, the stamens few or numerous. Fertile flow- ers single or clustered. Calyx 3 - 5-parted, the tube adherent to the incompletely 2 - 4-celled ovary. Fruit drupaceous, with a bony endocarp. Seed 4-lobed, without albumen, orthotropous. Cotyledons oily, 2-lobed. Radicle short, superior. 1. CABYA, Nutt. HICKORY. PIGNUT. Aments of the sterile flowers mostly three together, on a common peduncle, lateral. Calyx unequally 3-parted. JStamens 3-6. Fertile flowers terminal. Calyx 4-parted. Petals none. Stigma large, 4-lobed. Nut smooth, 4 - 6-angled, incompletely 4-celled; the coriaceous epicarp (husk) partly or completely 4-valved. — Trees, mostly with scaly buds. Leaflets serrate. Fruit roundish. * Epicarp very thick, 4-valved : seed thick, edible. 1. O. alba, Nutt. (SHELL-BARK HICKORY.) Leaflets 5-7 (mostly 5), lanceolate-oblong, or the upper ones obovate-oblong, acuminate, pubescent be- neath ; fruit depressed-globose ; nut roundish, thin-shelled, compressed, 4-angled, slightly pointed. — Rich woods in the upper districts, Georgia, and northward. March and April. — A large tree, with shaggy and scaly bark. 2. C. sulcata, Nutt. Leaflets 7-9, obovate-oblong, acuminate, pubescent beneath; fruit oval, 4-angled above; nut oblong, thick-shelled, conspicuously pointed, slightly compressed. — Rich woods in the upper districts of Carolina, Elliott, and northward. March and April. — A large tree, with scaly bark. 3. C. oliv8Bformis, Nutt. (PECAN-NUT.) Leaflets 13-15, lanceolate- oblong, serrate falcate, acuminate ; nut olive-shaped, smooth, thin-shelled, some- what 4-angled. — River-bottoms, Mississippi, northward and westward. — A large tree with smoothish bark. JUGLANDACE^E. ( WALNUT FAMILY.) 419 * * Eplcarp partly 4-valved: seed thin : bark not scaly. 4. C. tomentosa, Nutt. (HICKORY.) Leaflets 7-9 (mostly 7), large, oblong-obovate, acute, pubescent beneath ; sterile aments tomentose ; fruit large, globose ; epicarp thick, coriaceous, parted nearly to the base ; nut thick-shelled, oval, somewhat 6-angled. — Rich soil, Florida, and northward. March and April. — A large tree with rough bark. 5. C. glabra, Torr. (PIG-NUT.) Leaflets 5-7 (mostly 7), ovate-lanceo- late, acuminate, smooth ; fruit obovate, obcordate,, or pear-shaped ; epicarp thin, parted to the middle, coriaceous ; nut thick-shelled, sometimes angled. (C. por- cina, Nutt.) — Woods, Florida, and northward. March and April. — A large tree with smoothish bark. 6. C. microcarpa, Nutt. Leaflets 5-7, oblong-lanceolate, smooth, glan- dular beneath, acuminate ; aments smooth ; fruit roundish ; epicarp thin ; nut thin-shelled, slightly 4-angled. — Mountains of North Carolina, and northward. April and May. — A large tree. Fruit f ' in diameter. 7. C. myristicseformis, Michx. " Leaflets 5, ovate-lanceolate, acumi- nate, smooth, the terminal one sessile ; fruit oval, rugose, rough ; nut oval, slightly acuminate, furrowed, very hard." — South Carolina, at Goose Creek, Michaux. 'Berkeley District, Ravenel. Nuts resembling nutmegs. 8. C. amara, Nutt. (BITTER-NUT.) Leaflets 9-11, oblong-lanceolate, acute, smoothish ; fruit globular ; epicarp thin, parted to the middle ; nut thin- shelled, obcordate ; seed much wrinkled. — Low ground, Florida, and north- ward. March and April. — A tree of moderate dimensions, with smooth bark, and very bitter and astringent seeds. 9. C. aquatica, Nutt. Leaflets 9 - 13, lanceolate, acuminate, slightly ser- rate, smooth ; fruit roundish, 4-ribbed ; epicarp thin, 4-parted to the base ; nut compressed, thin-shelled, 4-angled ; seed much wrinkled. — River-swamps, Flor- ida to South Carolina. March and April. — A small tree with rough bark. Seeds very bitter and astringent. 2. JUGLANS, L. WALNUT. BUTTERNUT. Sterile aments lateral, solitary. Calyx 5-6-parted. Stamens numerous. Fertile flowers terminal. Calyx 4-cleft. Petals 4, minute. Stigmas 2, long, recurved. Fruit oblong or globose. Epicarp indehiscent. Nut incompletely 4-celled, furrowed or sculptured. — Trees with naked buds. Leaflets serrate. 1. J. nigra, L. (BLACK WALNUT.) Leaflets 11-21, ovate-lanceolate, pubescent beneath, acuminate, slightly cordate at the base, or oblique ; fruit globose, rough-dotted ; nut furrowed. — Rich woods, Florida, and northward. March and April. — A tree 30° -50° high. 2. J. cinerea, L. (BUTTERNUT.) Leaflets 15-19, ovate-lanceolate, acute, rounded at the base, pubescent ; the petioles, fruit, &c. viscid ; fruit oblong ; nut deeply sculptured, acute. — Rocky woods in the upper districts. March and April'. — A tree 30° - 40° high. 420 cuptJLiFERuE. (OAK FAMILY.) ORDER 128. CUPUt-IFER^E. (OAK FAMILY.) Trees or shrubs, with alternate entire or lobed straight-veined stipulate leaves, and monoecious apetalous flowers. Sterile flowers in pendulous slender or capitate aments. Calyx scale-like, or regular and 4 - 6-lobed. Stamens few. Fertile flowers single or clustered, furnished with an invo- lucre which encloses the fruit, or forms a cup at its base. Ovary 2-7- celled, with 1-2 pendulous anatropous ovules in each cell. Stigmas as many as the cells. Fruit 1-celled, 1-seeded. Albumen none. Cotyle- dons thick and fleshy. Radicle superior. Synopsis. * Fertile flowers single, or few in a cluster. 1. QUERCUS. Nut solitary, with the base enclosed in a scaly involucre. 2. CASTANEA. Nuts 1-3, enclosed in a 4-valved spiny involucre ; sterile aments elongated, erect. 3. FAGUS. Nuts 2, 3-angled, enclosed in a somewhat spiny 4-valved involucre : sterile aments capitate, pendulous. 4. CORYLUS. Nut solitary, bony, enclosed in a leafy lacerated involucre. * * Fertile flowers spiked. 5. CARPINUS. Nuts 1 - 2, in the axil of an open leafy involucre. 6. OSTRYA. Nut solitary, enclosed in a membranaceous inflated involucre. 1. QUERCUS, L. OAK. Sterile ament slender, bractless, pendulous. Calyx unequally 6 - 8-parted. Stamens 6-12, slender : anthers 2-celled. Fertile flowers axillary, solitary, or few in a cluster. Calyx 6-cleft or denticulate, adnate to the 3 - 4-celled ovary. Ovules 2 in each cell. Stigmas obtuse. Nut (Acorn) oblong or hemispherical, partly (rarely wholly) enclosed in the cup-shaped scaly involucre. Cotyledons very thick, plano-convex. — Trees or shrubs, with simple entire or lobed leaves. Stipules caducous. § 1. Fruit biennial. t * Leaves entire, short-petioled ; those on vigorous shoots often lobed or toothed. 1. Q. Phellos, L. (WILLOW-OAK.) Leaves (2' -3' long) lanceolate or linear-lanceolate, bristle-awned, scurfy, like the branchlets, when young, becom- ing smooth on both sides ; fruit small, sessile ; cup flattish, enclosing the base of the hemispherical nut. — Margins of swamps and streams, Florida to Missis- sippi, and northward. — A slender tree, 40° - 50° high. Var. laurifolia. (Q. laurifolia, Michx.) Leaves larger (3' -4' long), oblong-lanceolate; cup deeper and more pointed at the base. — Light uplands, Florida to North Carolina. — A tree commonly larger than the preceding. Var. arenaria. (Q. myrtifolia, Willd. ?) Shrubby (4° - 8° high) ; leaves small (£'- 1£' long), rigid, oblong or obovate, obtuse or barely pointed, with the margins revolute. — Dry sand ridges, along the coast of Florida and Georgia. 2. Q. imbricaria, Michx. (SHINGLE-OAK.) Leaves lanceolate-oblong, acute or obtuse at each end, mucronate, pale and downy beneath, deciduous ; CUPULIFERuE. (OAK FAMILY.) 421 fruit middle-sized ; cup narrowed at the base, enclosing one half or one third of the nearly hemispherical nut, the broad and whitish scales closely appressed. — Mountains of North Carolina, and northward. — A tree 40° - 50° high. Leaves 3' - 5' long. > 3. Q. cinerea, Michx. (HIGH-GROUND WILLOW-OAK.) Leaves peren- nial, oblong-lanceolate, obtuse or acute, mucronate, white tomentose beneath ; fruit small, sessile ; cup shallow, narrowed at the base, pale, enclosing one third of the hemispherical nut. — Dry sandy pine barrens, Florida to North Carolina. — A small tree, fruiting abundantly. Leaves 2' - 3' long, scurfy, like the branchlets, when young. Var. pumila, Michx. (Q. pumila, Walt.) Shrubby (l°-3° high); branches slender; leaves lanceolate, wavy, at length smooth on both surfaces. — Flat or dry pine barrens, Florida to North Carolina. — Roots creeping. 4. Q. virens, Ait. (Live OAK.) Branchlets tomentose; leaves coria- ceous, perennial, oblong, obtuse, somewhat rugose, smooth and shining above, hoary-tomentose beneath, the margins revolute ; fruit long-peduncled ; cup top- shaped, hoary, enclosing the base of the oblong chestnut-brown nut. — Dry or wet soil, in the lower districts, Florida to North Carolina. — Commonly a large tree with spreading branches. Leaves 2' -4' long. Var. maritima. (Q maritima, Willd.} Shrubby (4° -10° high) ; leaves smooth, lanceolate, concave, mostly acute ; fruit larger. — Sand ridges along the coast, Florida to South Carolina. Var. dentata. (Q. nana, Willd.*) Dwarf (1°- 2° high) ; earliest leaves flat, wedge-obovate or obovate-oblong, mucronate, toothed, at length smooth, the others lanceolate and entire ; fruit sessile or short-peduncled, often clustered. — Flat pine barrens, Florida. — Leaves nearly sessile. * * Leaves 3-lobed at the summit, bristle-awned. ^ 5. Q. aquatica, Catesb. (WATER-OAK.) Leaves perennial, short-peti- oled, obovate-oblong or wedge-shaped, smooth on both sides, obtusely 3-lobed at the summit, often entire, or on young shoots pinnatifid-toothed or lobed, mostly awnless when old ; fruit small, mostly sessile ; cup shallow, flat, en- closing the base of the hemispherical downy nut. — Swamps and wet banks, Florida, and northward. — A small tree, with smooth bark. Leaves 2' -3' long, with tufts of down in the axils of the veins when young. Var. hybrida. Smooth, with ash-colored branchlets ; leaves oblong or wedge-oblong, entire, emarginate, or 3-lobed at the summit, tapering or abruptly contracted into a short petiole ; fruit very small, closely sessile ; cup shallow, flattened, enclosing the base of the ovate nut. — Rocky banks of Schurlock's Spring, West Florida, and of the Flint River at Albany, Georgia. — A lofty tree. Leaves 3' - 4' long. Fruit 4" - 5" long. 6. Q. nigra, L. (BLACK JACK.) Leaves short-petioled, coriaceous, broad- ly wedge-shaped, rounded at the base, mostly 3-lobed at the summit, bristle- awned, smooth above, rusty-pubescent beneath, deciduous ; fruit middle-sized, on short and thick peduncles ; cup top-shaped, with coarse truncate scales, enclosing one third or one half of the oblong-ovate nut. (Q. ferruginea, Michx.) 422 CUPDLIFEILS:. (OAK FAMILY.) — Dry gravelly or sandy soil, Florida to Mississippi, and northward. — A small tree. Leaves 4' - 9' long. Intermediate forms between this and No. 7 are not uncommon. * * * Leaves long-petioled, sinuate-pinnatijid, bristle-awned, deciduous. •f- Leaves smooth or nearly so. ^ 7. Q. Catesbsei, Michx. (TURKEY-OAK.) Leaves somewhat coriaceous, broad, narrowed into a short petiole, deeply pinnatifid ; the lobes very acute from a broad base, spreading, mostly falcate and entire ; fruit rather large, short- peduncled ; cup thick, turbinate, with broad obtuse scales, enclosing half of the ovoid nut; the upper scales inflexed and lining the inner edge of the cup. — Dry pine barrens, Florida to North Carolina. — A small tree. Leaves G'-9' long. 8. Q. tinctoria, Bartr. (BLACK OAK.) Leaves obovate-oblong, with deep or shallow open sinuses, and about 6 sharply-toothed lobes, obtuse or trun- cate at the base, pubescent when young, at length only in the axils of the veins beneath ; cup top-shaped, with broad scales, enclosing about half of the round- ish depressed nut. (Q. discolor, A it.) — Dry woods, chiefly in the upper dis- tricts, and northward. — A large tree, with the outer bark dark-brown, the inner thick and yellow. Leaves turning light-brown after frost. Nuts 6" - 8" long. ^/ 9. Q. coccinea, "Wang. (SCARLET OAK.) Leaves long-petioled, oval or oblong, with deep and broad sinuses, and 6-8 entire or sparingly toothed lobes, truncate at the base, smooth and shining on both sides ; cup top-shaped, with coarse scales, enclosing one half or one third of the ovoid nut. — Dry woods, Florida, and northward ; more abundant in the upper districts. — A large tree, not easily distinguished from the preceding, and probably only a form of it. Leaves turning bright scarlet after frost. * 10. Q. rubra, L. (RED OAK.) Leaves oblong, with open shallow sinuses, and 8-12 entire or sharply toothed lobes, smooth on both sides, paler beneath ; fruit large, cup shallow, flat, with fine scales, enclosing the base of the ovate or oblong nut. — Rocky woods, Florida, and northward. — A large tree. Leaves turning dark red after frost Nut 1' long. 11. Q. Georgiana, M. A. Curtis. Shrubby; leaves small, very smooth, somewhat obovate, wedge-shaped at the base, with deep or shallow open sinuses, and 3-5 triangular-lanceolate entire acute or obtuse lobes ; fruit short-pedun- cled ; cup smooth and shining, saucer-shaped, enclosing one third of the oval- globose nut. — Stone Mountain, Georgia, Ravenel. — Shrub 6° - 8° high, grow- ing in clusters. Leaves 3' -4' long. Fruit abundant. Nut £' long. -*- -t- Leaves tomentose beneath. 12. Q. falcata, Michx. (SPANISH OAK.) Leaves oblong, rounded at the base, 3 - 5-lobed ; the lobes entire or sparingly toothed at the apex, the terminal one commonly narrow and elongated; fruit rather small; cup somewhat top- shaped, with coarse scales, enclosing half of the globular nut. — Var. FAGODJE- FOLIA, Ell., has larger leaves, with 11-13 nearly opposite and spreading lobes. — Dry woods, Florida, and northward. — A large tree. Leaves 4' -5' long, entire near the base. Nut £' long. CUPUHFERJE. (OAK FAMILY.) 423 13. Q. ilicifolia, Wang. (BEAR-OAK.) Shrubby ; leaves obovatc, with 3-5 angular or short and broad mostly entire lobes, acute at the base, white- tomentose, like the branchlets, when young, at length smooth and dark green above ; fruit short-pedunclcd ; cup shallow, saucer-shaped, with coarse scales, enclosing about one third of the ovate nut. (Q. Banisteri, Michx.) — Barren soil in the upper districts, Georgia, and northward. — A shrub 3° - 4° high. Leaves 3' - 5' long. Fruit abundant. § 2. Fruit annual: leaves awnless, deciduous. # Leaves sinuate-lobed. ^ 14. Q. obtusiloba, Michx. (POST-OAK.) Leaves with 5-7 broad rounded or notched lobes separated by wide open sinuses, narrowed at the base into a short petiole, pubescent beneath ; cup hemispherical, enclosing one third or one half of the oval nut. — Cold clayey soil, Florida, and northward. — A tree 40° - 50° high. Nut £' long. Leaves 4' - 6' long. ^ Var. parvifolia. Leaves smaller (!£' -3' long), oblong, obtuse, entire or sinuate-toothed, nearly smooth on both sides, rusty-pubescent, like the branchlets, when young ; nut larger. — Sand-ridges near the coast, West Florida. — A shrub or small tree. 15. Q. alba, L. (WHITE OAK.) Leaves oblong or obovate-oblong, with 7-9 mostly obtuse and entire narrow lobes separated by narrow sinuses, nar- rowed into a petiole, densely tomentose, like the branchlets, when young, at length smooth or glaucous beneath ; fruit large, nearly sessile ; cup hemispheri- cal, enclosing one third of the oblong-ovate nut. — Damp woods, Florida to Mississippi, and northward. — A large tree with white bark. Leaves 4' - 6' long. Nut about 1' long. 16. Q. macrocarpa, Michx. (MOSSY-CUP OAK.) Leaves thin, obovate- oblong, pubescent or pale beneath, acute at the base, short-petioled, slightly or strongly few -many-lobed ; the lobes rounded, entire or obtusely toothed ; fruit large ; scales of the cup thick, the upper ones produced into long awns ; nut ovoid, included, or half enclosed in the cup. — Woods and river-banks, North Carolina, and northward. — A middle-sized tree. Leaves 6' -15' long. Nut I'-lJ'long. 17. Q. lyrata, Walt. (OVER-CUP OAK.) Leaves crowded at the end of the branchlets, obovate-oblong, acute at the base, 7-9-lobed, white-tomentose beneath, or at length smoothish, shining above, the lobes triangular, acute, and entire ; fruit sessile : cup round-ovate, with rugged scales, almost covering the roundish nut. — River-swamps, Florida to North Carolina. — A large tree. Leaves 5'- 8' long, short-petioled. Fruit 1' long. * * Leaves toothed. 18. Q. Prinus, L. (SWAMP CHESTNUT-OAK.) Leaves oblong or obo- vate-oblong, obtuse, with rounded teeth, smooth and shining above, pale and pubescent beneath, acute at the base, short-petioled ; fruit large, short-peduncled ; cup hemispherical, rugged with tubercular scales, enclosing the base of the roundish or oblong-ovate nut. — Low grounds, Florida to Mississippi, and north- ward. — A large tree. Nut about 1' long. 424 CUPULIFERJE. (OAK FAMILY.) ^ Var. monticola, Michx. (RocK CHESTNUT-OAK.) (Q. montana, Wittd.) A smaller tree (30° -40° high), with more compact and durable wood; fruit smaller; nut oblong. — Rocky woods along the mountains. ^ Var. Michauxii. (Q. Michauxii, Nutt.) Leaves smaller (4' -5' long), rather rigid, velvety beneath, often obtuse or slightly cordate at the base ; nut ovate (!£' long). — Low ground, Florida to South Carolina. — A large tree. , Var. discolor, Michx. Leaves obovate, acute at the base, coarsely and obtusely toothed or somewhat lobed, dark-green above, white-tomentose beneath ; fruit long-peduncled, tubercular, hemispherical; nut oblong-ovate (!' long). (Q. bicolor, Willd.) — Swamps along the mountains. — A large tree. 19. Q. Castanea, "VVilld. (CHESTNUT-OAK.) Leaves oblong, varying to lanceolate, acuminate, sharply toothed, with the points incurved, mostly acute at the base, smooth above, paler and minutely pubescent or glaucous beneath ; fruit small, sessile or short-peduncled ; cup hemispherical, with flat scales, en- closing one third of the oblong nut. — Rocky woods, West Florida to Missis- sippi, and northward. — A large or middle-sized tree. Leaves 3' - 6' long. Nut 7" -9" long. 20. Q. prinoides, Willd. (CHINQUAPIN-OAK.) Shrubby ; leaves lance- olate-oblong, acute at each end, acutely toothed, smooth above, white-tomentose beneath ; fruit small, mostly sessile ; cup hemispherical, with flat scales, enclos- ing about one half of the round-ovate nut. (Q. Chinquapin, PwrsA.) — Barren soil in the upper districts, and northward. — Shrub 2° - 6° high. Leaves 3> -4' long. Nut 8" -9" long. 2. CASTANEA, Tourn. CHESTNUT. Sterile flowers in separate clusters, in long erect cylindrical aments. Calyx 5-6-parted. Stamens 8-15: anthers 2-celled. Fertile flowers 1 - 3, enclosed in the bell-shaped, at length globose, 4-valved and very prickly involucre. Calyx 5-6-lobed, superior. Abortive stamens 5-12. Ovary 3-6-celled. Ovules single or by pairs in each cell. Stigmas 3-6, bristle-like, spreading. Nuts 1-3, roundish, compressed, or plano-convex. Cotyledons very thick. — Trees or shrubs, with oblong petioled sharply-serrate straight- veined leaves. 1. C. vesca, L. (CHESTNUT.) Leaves oblong-lanceolate, acuminate, coarsely serrate, smooth on both sides ; nuts mostly 3, the middle one flattened, the 2 outer ones plano-convex, dark brown. — Dry woods, "West Florida, and northward. April. — A large tree. Leaves 6' -7' long. 2. C. pumila, Michx. (CHINQUAPIN.) Leaves oblong, acute, or obtuse, finely serrate, hoary-tomentose beneath; nuts solitary, nearly globular. (C' nana, Muhl., a form with larger leaves and nuts.) — Dry sandy soil, Florida, and north- ward. April - May. — A large shrub or small tree. Leaves, involucre, and nut smaller than those of the preceding. 3. PAGUS, Tourn. BEECH. Sterile flowers capitate, on long and drooping peduncles, with deciduous bracts. Calyx bell-shaped, 5 - 6-cleft. Stamens 8 - 12 : anthers 2-celled. Fertile flow- CUPULIFER^E. (OAK FAMILY.) 425 ers solitary or by pairs, peduncled, surrounded with numerous linear bracts and a 4-lobcd involucre. Calyx of 4 - 5 subulate lobes. Ovary 3-cclled, with two ovules in each cell. Styles 3, filiform. Nuts commonly 2, acutely 3-angled, en- closed in the soft-spiny 4-valvcd involucre. Cotyledons thick and fleshy. — Trees, with whitish bark, and straight-veined leaves expanding with the flowers. 1. P. ferruginea, Ait. Leaves oblong-ovate or rhombic, acute, finely serrate, silky on both sides when young, when old only on the veins beneath ; spines of the involucre short, recurved. — Damp sandy soil, Florida, and north- ward. April. — A large tree, with widely spreading branches. 4. CORYLUS, Tourn. HAZEL-NUT. Sterile flowers in cylindrical pendulous bracted aments. Calyx 2-cleft, partly united with the bract. Stamens 8 : anthers 1 -celled. Fertile flowers clustered. Ovary 2-celled, 2-ovuled. Stigmas 2, filiform. Involucre tubular at the base, leafy and lacerated at the summit, enclosing a single bony (edible) nut. — Shrubs, with broadly cordate doubly serrate petioled leaves. Flowers appearing before the leaves. S* 1- C. Americana, Walt. (HAZEL-NUT.) Branchlets glandular; leaves round-cordate, coarsely serrate, acuminate, pubescent ; involucre roundish at the base, dilated and flattened above the nut, glandular hairy ; nut roundish, some- what flattened. — Rich soil along the margins of woods and thickets, "West Flor- ida, and northward. Feb. and March. — Shrub 5° - 6° high, tough and flexible. Leaves 4' - 6' long. - 2. C. rostrata, Ait. (BEAKED HAZEL-NUT.) Branchlets smooth ; leaves ovate or oblong-ovate, slightly cordate, acuminate, finely serrate, rather thin, pubescent ; involucre bristly, prolonged into a tube above the nut, 2-cleft and toothed at the summit ; fruit nearly globular. — Rich soil in the upper districts, and northward. March - April. — Shrub 4° - 6° high. 5. CAKPINTTS, L. HORNBEAM. Flowers destitute of floral envelopes, supported by scale-like bracts. Sterile flowers in drooping cylindrical aments. Stamens 8 - 14 : filaments short : an- thers 1 -celled, hairy at the apex. Fertile flowers spiked. Bracts 2-flowered, deciduous. Ovary 2-celled, 2-ovuled. Stigmas 2, filiform. Nut solitary, an- gular, sessile in the axil of an open 3-lobed leaf-like involucre. — Trees, with simple ovate or oblong straight-veined deciduous leaves, folded in the bud. Flowers expanding before the leaves. _, 1. C. Americana, Michx. (HORNBEAM.) Branchlets smooth and slen- der ; leaves oblong-ovate, acute or slightly acuminate, sharply and doubly ser- rate, rounded at tfie base, more or less pubescent. Fertile spikes terminal, long-peduncled, 6- 1 2-flowered ; involucre unequally 3-lobed, the middle lobe longer and serrate on one side ; nut small, ovate, compressed, 8-ribbed. — Rich woods, Florida, and northward. March. — A small tree, with hard and close- grained wood. 36* 426 MYRICACE^E. (WAX-MYRTLE FAMILY.) 6. OSTRYA, Micheli. HOP-HORNBEAM. Sterile flowers in drooping cylindrical aments, each in the axil of a scale-like bract, destitute of a calyx. Stamens with the filaments irregularly united. Fer- tile flowers in a short terminal crowded spike, each enclosed in a membranaceous involucre. Ovary 2-celled, 2-ovuled, bearded at the apex. Stigmas 2, filiform. Fruiting involucre inflated, nerved, hairy or bristly at the base, enclosing the solitary pointed nut. — Small trees, with ovate or oblong serrate short-petioled deciduous leaves. Flowers appearing with the leaves. 1. O. Virginica, Willd. (HOP-HORNBEAM.) Leaves ovate-oblong, sharp- ly and simply serrate, acuminate, rounded or slightly cordate at the base, pubes- cent ; fertile spike cone-like, short-peduncled ; the imbricated involucres oblong, mucronate, bristly at the base. — Rich woods, Florida, and northward. March. — A small tree, with hard and close-grained wood. ORDER 129. MYRICACE^. (WAX-MYRTLE FAMILY.) Chiefly shrubs, with simple alternate leaves, with or "without stipules, and monoecious or dioecious flowers, disposed in aments, destitute of calyx or corolla, each in the axil of a simple bract. Stamens 2 - 10 ; the short filaments free or partly united : anthers 2-celled. Ovary solitary, 1-celled, surrounded at the base with a row of scales. Ovule solitary, orthotropous or amphitropous. Involucre none. Stigmas 1-2, elongated. Fruit a dry 1 -seeded drupe. Albumen none. Cotyledons fleshy. Kadicle superior. Synopsis. * Seed orthotropous. Plants dotted with resinous glands. 1. MYRICA. Flowers dioecious. Filaments united below. Leaves serrate or entire. Stip- ules none. 2. COMPTONIA. Flowers monoecious. Filaments forking. Leaves pinnatifid. Stipules half-cordate. * * Seed amphitropous. Plant destitute of glands. 3. LEITNERIA. Flowers dioecious. Filaments distinct. Stigma solitary. Leaves entire. Stipules none. 1. MYRICA, L. WAX-MYRTLE. BAYBERRY. Flowers in short axillary aments, dioecious, each in the axil of a scale-like bract. Calyx and corolla none. Stamens 2-10, with the filaments united below. Ovary enclosed in a cup of 3 - 5 rounded scales. Ovule orthotropous. Stigmas 2 (rarely 4), flattened on the inner face, widely spreading. Nut glo- bose, covered with waxy grains. — Shrubs or small trees, dotted with minute resinous and odorous glands. Branches clustered. Leaves short-petioled, serrate or entire. Stipules none. 1. M. cerifera, L, (WAX-MYRTLE. BAYBERRY.) Branchlets pubescent ; leaves lanceolate or oblong-lanceolate, mostly obtuse, entire, or with a few sharp MYRICACE^E. (W AX-MYRTLE FAMILY.) 427 scrraturos near the apex, smooth, or pubescent on the veins beneath, tapering into a petiole ; sterile aments very numerous, oblong ; bracts wedge-shaped ; stamens 4 ; fertile aments small ; bracts rounded, obscurely 3-lobed ; scales of the ovary 4, ciliate ; stigmas 2 ; fruit abundant, white. — Margins of swamps, mostly near the coast, Florida, and northward. March and April. — A shrub or small tree. Leaves persistent along our southern limits, but northwardly deciduous, l£' - 4' long. Var. media, Michx. Branchlets smooth or hairy ; leaves larger, obovate- oblong, entire, or slightly serrate near the apex, mostly rounded or emarginate at the summit ; aments and nuts larger ; scales of the sterile flower roundish. : — Wet pine ban-ens. — Shrub 2° -4° high. Leaves mostly deciduous. Var. pumila, Michx. Low (l°-2° high), much branched; leaves smaller (^'-2' long), persistent, varying from wedge-obovate to wedge-lanceolate or linear-spatulate, coriaceous, obtuse, mostly toothed near the apex ; aments minute, ovoid, few-flowered. — Sandy pine barrens. 2. M. inodora, Bartr. Smooth ; leaves perennial, coriaceous, oblong, obtuse, very entire, tapering into a petiole, with the margins revolute ; sterile aments oval or oblong, with the roundish bracts transversely ridged on the back ; stamens about 10, monadelphous ; fertile aments small, elongated in fruit ; stigmas 2 or 4 ; scales of the ovary 5 ; nuts large, black, commonly soli- tary. — Margins of pine-barren ponds and swamps, Florida, common near the coast. Feb. - March. — A shrub or small tree, with whitish bark. Leaves about 2' long, sparingly dotted. Nuts ovoid, 3" long. 2. COMPTONIA, Solander. SWEET-FERN. Flowers monoacious. Sterile ament cylindrical, with kidney-shaped acumi- nate bracts. Stamens 3, forked. Fertile ament globular, bur-like. Ovary- surrounded by 5 - 6 long and slender persistent scales ; ovule orthotropous. Stigmas 2, spreading. Nut ovoid-oblong, smooth. — Low shrubs, with narrow pinnatifid leaves, and small semicordate stipules. 1. C. asplenifolia, Ait. Leaves thin, short-petioled, linear-lanceolate, with numerous rounded lobes, deciduous ; fertile aments at the base of the sterile, appearing before the leaves. — Dry woods, North Carolina, and north- ward. April. — Plant l°-2° high, aromatic when bruised. Leaves 3' -4' long, resembling those of a fern. 3. LEITNEBIA, N. Gen. Flowers in aments, dioecious, each in the axil of a scale-like bract. Calyx and corolla none. Sterile ament many-flowered, cylindrical, elongated ; bracts ovate, acuminate, imbricated, staminiferous at the base, hairy, the lower ones empty; stamens 5-10, free: anthers 2-celled, introrse. Fertile ament few- many-flowered, narrowly cylindrical, short, in fruit elongated ; bracts ovate, ap- proximate, at length scattered, the lower ones empty. Ovary ovoid, nearly smooth, with the base surrounded by a cup of 4 minute ovate toothed scales. Ovule solitary, amphitropous. Stigma solitary, thick, elongated, channelled. 428 BETULACEJE. (BIRCH FAMILY.) Drupe oblong, obtuse, narrowed at the base : epicarp thick, coriaceous, smooth : endocarp crustaceous. Albumen none. Embryo large, filling the cell. Coty- ledons oval, compressed. Kadicle superior. — A stout shrub, 2° - 6° high, with soft wood and smooth light-brown bark, without resinous dots. Branches short and thick, hoary-pubescent when young. Leaves oblong or obovate-oblong (4'- 6' long), acute at each end, entire, smooth and shining above, hoary-tomentose beneath, straight-veined, on long spreading or recurved hoary petioles, decidu- ous. Stipules none. Aments developed before the leaves, from tho axils of the preceding year, the sterile ones I'-ltf long, the fertile 6" -8" long. Drupe £' long, green, slightly curved. 1. L. Ploridana. — Salt or brackish marshes, Apalachicola, Florida. — Feb. and March. ORDER 130. BETTILACEJ3. (Bmcn FAMILY.) Trees or shrubs, with alternate simple straight-veined leaves, deciduous stipules, and monoecious amentaceous flowers, placed 2-3 together in the axil of a 3-lobed bract. Stamens 4 : filaments distinct. Ovary 2-celled, with a single suspended anatropous ovule in each cell. Stigmas 2, elon- gated. Fruit a winged or angled 1-celled 1-seeded nut, forming, with the imbricated persistent bracts, a cone-like spike. 1. BETULA, Tourn. BIRCH. Sterile aments drooping. Bracts 3-flowered, 2-bracteolate, peltate. Calyx scale-like. Stamens short : anthers 1-celled. Fertile aments oblong or cylin- drical. Bracts 3-flowered. Calyx none. Stigmas filiform. Nut broadly winged. Cotyledons oblong. — Trees or shrubs, with the outer bark often separable into thin papery sheets. Leaves petioled, sen-ate. Fruiting bracts membranaceous. 1. B. nigra, L. (BLACK BIRCH.) Leaves rhombic-ovate, acute, doubly serrate, smooth above, hoary-tomentose beneath, like the short petioles and branchlets, becoming rusty or smoothish ; sterile aments long and drooping ; the fertile ones oblong, short-peduncled, with the woolly bracts cleft into three linear-oblong nearly equal lobes. (B. rubra, Michx.) — Banks of rivers, Florida, and northward. March. — A middle-sized tree, with reddish-brown bark, and long spreading branches. 2. B. excelsa, Ait. (YELLOW BIRCH.) Leaves ovate or oblong-ovate, acuminate, unequally and doubly serrate, pubescent, like the branchlets, when young, at length smooth on both sides, on short pubescent petioles ; fruiting aments oval-oblong ; lobes of the bracts nearly equal, slightly spreading and hairy, acute. (B. lutea, Michx.} — Mountains of North Carolina, and north- ward. March and April. — A tree 40° - 60° high, with yellowish bark. Leaves 2' - 3' long. 3. B. lenta, L. (CHERRY BIRCH.) Branchlets smooth; leaves ovate or oblong-ovate, acute, cordate, finely and doubly serrate, silky when young, at SALICACEJE. (WILLOW FAMILY.) 429 length only on the petioles and veins beneath ; fruiting aments oblong ; lobes of the bracts widely spreading, acute, smooth. — Cool shady banks in the upper parts of Georgia, and northward. March. — A middle-sized tree, with dark brown rugged bark, and close and fine-grained wood. Young twigs spicy and aromatic. 2. ALNITS, Tourn. ALDER. Sterile aments elongated, drooping. Bracts peltate, 5-bracteolate, 1 - 3-flow- ered. Calyx 4-parted or (in No. 2) scale-like. Stamens 4 : anthers 2-cclled. Fertile aments short, erect. Bracts fleshy, 2-flowered. Calyx of four minute scales, adherent to the bracts. Bracts of the fruiting ament woody, persistent. Nut angled or winged. — Shrubs or small trees. Leaves petioled, serrate, the stalked buds covered with a single scale. Fertile aments racemed. 1. A. serrulata, Ait. Leaves obovate, obtuse or abruptly pointed, serru- late, commonly pubescent beneath, acute at the base, short-petioled ; stipules oval, obtuse ; fruiting aments ovoid, short-peduncled ; fruit ovate, wingless. — Banks of streams, Florida, and northward. Jan. -March. — Shrub 3° -12° high. Leaves 2' -4' long, thickish, and partly persistent at its southern limits. Calyx of the sterile flowers- 4-parted. 2. A. viridis, DC. Leaves oval, rounded at both ends, slightly oblique at the base, finely and sharply serrate, softly pubescent on the lower surface, or only on the veins and petiole , stipules ovate ; calyx of the sterile flowers scale-like ; fruiting aments ovoid, long-peduncled ; fruit winged. High mountains of North Carolina, and northward. April. — A low much branched shrub. Leaves 1'- 2' long. ORDER 131. SAL.ICACEJE. (WILLOW FAMILY.) Trees or shrubs, with soft wood, alternate simple stipulate leaves, and dioecious amentaceous flowers, destitute of calyx and corolla, each solitary in the axil of a simple bract. Stamens 2 - many. Ovary 1-celled or im- perfectly 2-celled, with numerous erect anatropous ovules in each cell. Styles 2, very short, more or less united: stigmas 2-lobed. Fruit a 2-valved many-seeded capsule. Seeds minute, clothed with long silky hairs. Albumen none. Cotyledons elliptical, flattened. Radicle point- ing downward. 1. SALIX, Tourn. WILLOW. Bracts of the aments entire. Flowers each with 1-2 small glands. Stamens 2-6, free, or their filaments cohering at the base. Stigmas short, 2-lobed. — Leaves commonly narrow, short-petioled. Stipules scale-like and deciduous, or leafy and persistent. Buds covered with a single scale. Aments mostly erect, appearing with or before the leaves. 430 SALICACE^E. (WILLOW FAMILY.) * Aments small, sessile : ovary silky : stamens 2. — Low canescent shrubs, with small leaves, Aments developed before the leaves. 1. S. tristis, Ait. Leaves very numerous, lanceolate, obtuse or acute, entire or wavy, at least on the margins, tapering at the base, nearly sessile, cov- ered with a grayish down, at length smoothish above ; stipules minute, caducous ; flowering aments small, globular ; the oval bracts hairy on the margins ; style short; ovary slender, long-beaked. — Dry barren soil, in the upper districts of Georgia, and northward. March and April. — Shrub l°-2° high. Leaves 1'- 2' long. 2. S. humilis, Marshall. Leaves lanceolate, obtuse or abruptly pointed, narrowed into a petiole, smoothish above, grayish-pubescent beneath, often slightly serrate near the summit ; stipules small, semi-cordate or lunate, entire or toothed ; flowering aments ovoid or oblong, often drooping, with the lanceolate bracts villous ; style conspicuous ; ovary slender. (S. conifera, Muhl. S. Muh- lenbergiana, Willd.) — Barren soil in the upper districts, and northward. March. — Shrub 2° - 4° high, often bearing cone-like excrescences. 3. S. rosmarinifolia, L. Leaves linear-lanceolate, nearly entire, flat, pubescent above, silky beneath ; ovary lanceolate, villous ; styles elongated. — Swamps and low ground, Florida ? and northward. — Shrub 2° - 4° high. Branches silky. Leaves 1'- 2' long. Stipules subulate. Bracts oblong, obtuse, hairy on the margins. * * Aments large, cylindrical, sessile, sillcy-villous, developed before the leaves : ovaries woolly. — Large shrubs. 4. S. discolor, Muhl. Branchlets pubescent; leaves oblong, petioled, acute at each end, serrate in the middle, smooth and shining above, glaucous beneath ; stipules semi-lunar, toothed ; aments woolly, with glossy hairs ; sta- mens 2 ; ovary white-silky, sessile. — Low ground, Carolina, Pursh, and north- ward. April. — Shrub 8° -10° high. Leaves 2' -4' long. Aments l'-l£' long. * * * Aments large, cylindrical, on leafy peduncles or branchlets, appearing with the leaves : ovaries smooth, stalked. 5. S. Floridana, n. sp. Leaves ovate-lanceolate, acute, smooth above, glaucous beneath, finely sen-ate, rounded at the base, the petioles pubescent ; stipules small, caducous ; fruiting ament oblong, dense ; capsule ovate-lanceolate, smooth. — Kocky banks, West Florida, fruiting in April. — Shrub 8° - 12° high. Leaves thin, 2' -3' long. Fruiting aments 2' -3' long, 1' in diameter, enveloped in the copious wool of the seeds. Flowers not seen. 6. S. nigra, Marshall. Leaves lanceolate, acute at each end, serrate, peti- oled, pubescent when young, becoming smoothish and green on both surfaces ; stipules small and caducous, or sometimes lunate, toothed, and persistent ; aments elongated, the fertile ones slender, loose-flowered ; bracts deciduous ; sta- mens 3-6, hairy below ; capsule ovate, acuminate, pointed by the conspicuous style. (S. Houstoniana, Pursh.) — Swamps and muddy banks of rivers, Florida, and northward. A shrub or small tree, with brittle branches. Leaves 2' - 3' CONIFERS. (PINE FAMILY.) 431 long, sometimes pubescent at maturity, like the branchlets. Fertile aments 3' - 4' long. The WEEPING-WILLOW (S. Babylonica, Tourn.), and the YELLOW WILLOW or GOLDEN OSIER (S. vitcllina, Smith), are introduced species. 2. POPULUS, Tourn. COTTON-WOOD. POPLAR. ASPEN. Bracts of the aments toothed or lobed. Flowers from an oblique cup-shaped disk. Stamens few or numerous, with the filaments free. Stigmas elongated, 2-parted. — Trees. Leaves ovate or roundish, on long and often laterally com- pressed petioles. Buds covered with imbricated, often resinous-coated scales. Aments slender, drooping, appearing before the leaves. 1. P. angulata, Ait. Branches thick, smooth, and sharply angled ; leaves large, smooth, deltoid-ovate, acute or slightly acuminate, truncate at the base, obtusely serrate with incurved teeth ; the conspicuous veins and compressed peti- ole yellowish. — Banks of rivers, Florida, and northward. March and April. — A large tree. Leaves 6' - 8' long, longer than the petiole. 2. P. grandidentata, Michx. Branches terete; leaves round-ovate, acute, sinuate-toothed, hoary-tomentose when young, like the branchlets, at length smooth, scarcely longer than the slender compressed petiole; fruiting aments elongated, pubescent. — Low woods in the upper districts, and northward. March and April. — A middle-sized tree, with smooth gray bark. Leaves 3' - 5' long, and nearly of the same width. 3. P. heterophylla, L. Branches terete; leaves ovate, mostly obtuse, serrate, with obtuse, incurved teeth, rounded or with a small sinus at the base, hoary-tomentose on both sides when young, like the nearly terete petioles and branchlets, at length only on the veins beneath ; fruiting aments smooth. — River-swamps in the middle and upper districts, Mississippi to North Carolina, and northward. March and April. — A large tree. Leaves 3' -5' long. The LOMBARDY POPLAR (P. dilatata, Ait.), and the WHITE POPLAR (P. alba, L.), are introduced species. SUBCLASS II. GYMNOSPERM^E. Ovules naked (not enclosed in an ovary), commonly sup- ported by an open scale or leaf, and fertilized by the direct application of the pollen. Cotyledons often more than two. ORDER 132. CONIFERJE. (PINE FAMILY.) Trees or shrubs, with branching stems, composed of glandular or disk- bearing woody tissue without ducts, resinous juice, linear or needle-shaped 432 CONIFERS. (PINE FAMILY.) mostly persistent leaves, and monoecious or dioecious amentaceous flowers. Calyx and corolla none. Ovules orthotropous. Fruit a cone or drupe, Embryo in the axis of the albumen. Cotyledons 2 or more. Synopsis. SUBORDER I. ABIETINEJE. Fertile flowers consisting of numer- ous bracted imbricated carpellary scales, bearing two collateral inverted ovules at their base, and forming a cone in fruit. Buds scaly. 1. PINUS. Leaves 2 - 5 in a cluster, mostly elongated, sheathed at the base. 2. ABIES. Leaves single, short, destitute of a sheath. SUBORDER H. CUPKESSINEJE. Fertile flowers consisting of few bractless mostly peltate carpellary scales, bearing one or several erect ovules at their base, becoming fleshy or indurated, and forming in fruit a drupe or cone. Buds naked. 3. JUNIPERUS. Fruit a drupe. Leaves minute, imbricated. 4. CUPRESSUS. Fruit a globular cone, with peltate scales. Leaves imbricated, persistent. 5. TAXODIUM. Fruit a globular cone, with peltate scales. Leaves spreading, on slender deciduous branchlets. 6. THUJA. Fruit an oblong cone, with imbricated oblong scales. Leaves minute, imbri- cated on the flattened branches, persistent. SUBORDER m. TAXINE^E. Fertile flower solitary, without a car- pellary scale. Fruit a drupe. Buds scaly. 7. TAXUS. Drupe surrounded by a fleshy cup. Albumen homogeneous. 8. TORREYA. Drupe naked. Albumen ruminated. 1. PINUS, Tourn. PINE. Flowers monoecious. Sterile aments spiked or clustered. Stamens numer- ous on the axis, with very short filaments : anthers with a scale-like connective, 2-celled, opening lengthwise. Fertile aments terminal, single or clustered. Car- pellary scales in the axils of deciduous bracts, each bearing two collateral in- verted ovules at the base, indurated in fruit, and forming a cone ; the apex commonly thickened, angular, and spiny. Seeds nut-like, lodged in an excava- tion at the base of the scale, and furnished with a thin deciduous wing. Embryo in the axis of oily albumen. Cotyledons 3-12, linear. — Trees. Leaves ever- green, needle-shaped, 2-5 in a cluster, their bases enclosed hi a thin scarious sheath. * Leaves two in each sheath. 1. P. pungens, Michx. (TABLE-MOUNTAIN PINE.) Leaves from a short sheath, crowded, short and rigid ; cones large, commonly 3-4 in a whorl, ovate, sessile, the thick scales pointed at the apex, and armed with a very stout spine, which on the upper scales is incurved, on the lower ones recurved. — Mountains, rarely west of the Blue Ridge, Georgia to North Carolina, and northward. — A CONIFERS. (PINE FAMILY.) 433 tree 40° - 50° high, with rigid and irregular branches. Leaves about 2' long. Cones 3' long, yellowish-brown. Buds resinous. 2. P. inops, .Ait. (JERSEY or SCRUB PINE.) Branchlets smooth and glaucous ; leaves from short sheaths, scattered, short and rigid, flat on the inner face; cones solitary, conical-oblong, mostly reflexed, short-pedunclcd ; scales armed with a straight subulate rigid spine. — Dry sandy or gravelly ridges in the middle districts, South Carolina, and northward. — A tree 15° -30° high, with rough blackish bark, and spreading or recurved flexible branches. Leaves l'-2' long, .dark green. Cones light brown, about 2' long, opening at ma- turity. 3. P. glabra, Walt. Branches and branchlets smooth, whitish; leaves slender, scattered ; cones generally solitary, somewhat cylindrical ; spines nearly obsolete. — In close rich soil, near Black Oak, South Carolina, Ravenel. — A tree 40° - 60° high, with smoothish bark and soft white wood, branching from near the ground. Leaves 3' - 4' long. Cones about 2' long. " "Wings of the seed lighter colored, more tapering, longer and less gibbous than those of P. mitis." This species of Walter, long overlooked, but lately revived by Mr. Ravenel, is, if I mistake not, not uncommon in the low hummocks of this State, and is distinguished here,'as in South Carolina, as the SPRUCE-PINE. 4. P. mitis, Michx. (SHORT-LEAVED PINE.) Leaves from a long sheath, crowded, very slender, concave on the inner face, dark green ; cones small, mostly solitary, oval or conical-oblong ; the thin scales flattened at the apex, and armed with a weak incurved spine. (P. variabilis, Pursh.) — Light clayey soil, Florida, and northward. — A large tree, with rough bark, and fine-grained valuable wood. Leaves 3' - 5' long, sometimes three in a sheath. Cones light brown, about l£' long, opening at maturity. Wings of the seed reddish. * * Leaves three in each sheath. 5. P. rigida, Miller. (Pixcn-PiNE.) Leaves crowded, from a very short sheath, rigid, flattened on the inner face ; cones single or clustered, sessile, ovate, the scales armed with a short and rigid recurved spine. — Sandy barren soil in the upper districts, and northward. — A small or middle-sized tree, with thick blackish rugged bark, and hard resinous wood. Branches numerous, rigid, rough with the persistent bases of the leaf-bracts. Leaves 3' - 5' long. Cones 2' -3' long, light-brown. 6. P. serotina, Michx. (PoND-PiNE.) Leaves somewhat crowded, from a short sheath, elongated ; cones mostly opposite, round-ovate, sessile ; the scales rounded at the apex, and armed with a very small and weak spine. — Borders of ponds and swamps in the lower districts, Florida to North Carolina. — A small tree, with rough bark and sappy valueless wood. Leaves 5' -8' long. Cones 2' - 3' long. 7. P. Tseda, L. (LOBLOLLY or OLD-FIELD PINE.) Branches scaly; leaves from a long sheath, slender, elongated ; cones large, solitary, oblong- conicalj with the scales armed with a short and rigid straight spine. — Light 37 434 CONIFERS. (PINE FAMILY.) and mostly damp soil, Florida to North Carolina. — Commonly a lofty tree, with very thick and furrowed bark, and valuable, but sparingly resinous wood ; but in old fields low, with spreading branches. Leaves 6'- 10' long, rarely 2 or 4 in a sheath, dark green. Cones 3' - 5' long. 8. P. australis, Michx. (LONG-LEAVED or YELLOW PINE.) Leaves very long, from long sheaths, crowded at the summit of the thick and very scaly branches ; cones large, cylindrical or conical-oblong, the thick scales armed with a short recurved spine. (P. palustris, L., the prior but inappropriate name.) — Sandy soil, constituting almost the entire growth of the Pine Barrens. — A lofty tree, with thin-scaled bark, and very valuable resinous wood, dividing near the summit into few spreading branches. Leaves 10' -15' long. Leaf-bracts sca- rious, fimbriate. Cones 6'- 10' long. * # ^ Leaves Jive in each sheath. 9. P. Strobus, L. (WHITE PINE.) Leaves slender, from a very short and deciduous sheath ; cones long, cylindrical, recurved, with the loosely im- bricated scales neither thickened nor spiny at the apex. — A tree of moderate dimensions on the mountains of Georgia and North Carolina, but northward one of the loftiest of trees, and greatly valued for its soft white wood. Leaves 3' - 4' long. Cones 4' - 6' long. 2. ABIES, Tourn. SPRUCE. FIB. Chiefly as in Pinus, but the aments mostly solitary ; anthers opening length- wise or transversely ; scales of the cone not thickened at the apex, nor spiny ; wings of the seed persistent. — Leaves single, short. * Cones lateral, erect; with the scales deciduous at maturity: anther-cells opening transversely. 1. A. Fraseri, Pursh. (SILVER or BALSAM FIR.) Leaves somewhat distichous, linear, flattened, obtuse or emarginate, whitened beneath, the lower ones somewhat recurved, the uppermost erect ; cone oblong-ovate ; bracts long, oblong-wedge-shaped, short-pointed, reflexed at the summit. — High mountains of North Carolina, and northward. — A small tree. Leaves 6" - 8" long. Cones 1'- 2' long. * * Cones terminal, pendulous, with the scales persistent : anther-cells opening lengthwise. 2. A. Canadensis, Michx. (HEMLOCK-SPRUCE.) Leaves distichous, flat, linear, obtuse, dark green above, whitened beneath ; cones small, oval or oblong, with the few scales smooth and entire. — High mountains of North Car- olina, and northward. — A large tree with the horizontal branches gradually diminishing upward, forming a pyramidal spray. Leaves £' long. Cones 8"- 9" long. 3. A. nigra, Poir. (BLACK SPRUCE.) Leaves scattered on all sides of the branches, needle-shaped, 4-sided, erect, dark green; cone ovate or ovate- CONIFERS. (PINE FAMILY.) 435 oblong ; the scales with a thin wavy or denticulate margin. — High mountains of North Carolina, and northward. — A tall but slender tree. Leaves £' long, rigid. Cones 1 ' - 1 £' long. 4. A. alba, Michx. (WHITE SPRUCE.) Leaves inserted on all sides of the branches, needle-shaped, 4-sided, incurved, light green ; cones oblong-cylin- drical, with the scales entire. — High mountains of North Carolina, and north- ward. — A small tree, with more slender and less crowded leaves than those of the preceding. Cones l'-2' long. 3. JUNIPERUS, L. JUNIPER. Flowers mostly dioecious. Aments lateral and terminal, small, few-flowered. Stamens several : anther-cells 3-6, inserted beneath the peltate scale, opening lengthwise. Carpellary scales 3-6, 1-3-ovuled, partly united, fleshy, and forming in fruit a berry-like drupe containing 1-3 erect bony seeds. Cotyle- dons 2, oblong. — Trees, with subulate or scale-like persistent leaves. 1. I. Virginiana, L. (RED CEDAR.) Branches terete; leaves opposite or by threes, minute, rhombic-ovate, closely imbricated, depressed on the back ; those on young shoots subulate and spreading; drapes small, blue, 1 -2-seeded. — Dry, rocky, or even wet soil, Florida, and northward. March. — A small tree, with reddish, fine-grained, durable, and odorous wood, and spreading branches. Leaves dark green. 4. CUPRESSUS, Tourn. CYPRESS. Flowers monoecious. Aments terminal, few-flowered. Anther-cells 2-4, inserted under the lower edge of the peltate scale, opening lengthwise. Carpel- lary scales peltate, bearing several erect ovules on their stalks, becoming woody in fruit, and forming a globular dehiscent cone. Seeds winged at each end. Cotyledons 2 - 3, obtuse. — Trees, with minute imbricated leaves. 1. C. thyoides, L. ("WHITE CEDAR.) Branchlets compressed, crowded, distichous ; leaves ovate, imbricated in 4 rows, with a roundish gland on the back ; anther-cells two under each scale ; cones small. — Swamps, Florida, and northward. April. — A middle-sized tree, with fibrous bark, and light durable wood. Branches spreading. Cones 3" - 4" in diameter, borne on short scaly stalks. 5. TAXODIUM, Richard. CYPRESS. BALD-CYPRESS. Flowers monoecious. Sterile aments small, in a long drooping spiked panicle. Scales peltate. Anther-cells 2-5, opening lengthwise. Fertile aments single or by pairs, with the peltate scales 2-ovuled. Cone globular. Scales very thick, angular, slender-stalked, separating at maturity. Seeds 3-angled, wingless. Cotyledons 6-9, linear. — Trees, with distichous deciduous leaves. 1. T. distichum, Rich. Leaves alternate, opposite, or whorled, on very numerous short and slender deciduous branchlets, linear, acute, 2-ranked or ira- 436 CONIFERS. (PINE FAMILY.) bricated. ( Cupressus disticha, L. } — Ponds and deep swamps. Florida, and northward. Feb. and March. — A very large tree, with pale smoothish bark, light durable wood, and few fastigiate branches at the summit. Leaves 4" - 6" long. Cones |' - 1' in diameter. Attached to the roots are hollow conical knobs called Cypress-Knees. 6. THUJA, Tourn. ARBOR-VIT.E. Flowers monoecious. Aments small, terminal. Anther-cells 4, with a scale- like connective. Carpellary scales imbricated in four rows, with two erect ovules at the base. Cone oblong, the few scales imbricated, expanding at maturity, persistent. Seed winged. Cotyledons 2, oblong. — Trees or shrubs, with scale- like imbricated persistent leaves. 1. T. OCCidentalis, L. (ARBOR-VIT^E.) Branches flat, distichous ; leaves ovate, obtuse, with a gland on the back, imbricated in four rows ; cones oblong, nodding, with the outer scales oblong, obtuse ; seeds broadly winged, emarginate at each end. — Rocky banks on the mountains of Carolina, and northward. — A small or middle-sized tree. Cones £' long. 7. TAXUS, Tourn. YEW. Flowers dioecious, axillary; the sterile ones in globular few-flowered aments. Anther-cells 3-8, inserted under the peltate scale. Fertile flowers solitary, scaly-bracted, consisting of a single ovule on a cup-shaped disk, which becomes large and berry-like in fruit, and surrounds the nut-like seed. Embryo in the axis of mealy albumen. — Trees or shrubs, with scattered branches, linear rigid distichous leaves, and scaly buds. 1. T. Floridana, Nutt. Leaves narrowly linear, mucronate, conspicuously petioled (about 9" long), the outer margin revolute; fruit abundant; the fleshy disk of the seed bright red. — Banks of the Apalachicola River, Middle Florida. — A small tree, 10° -20° high. 8. TORRE YA, Arnott. Flowers dioecious, axillary; the sterile ones in globose or oblong aments. Anther-cells 4, inserted under the peltate scale. Fertile flowers solitary, con- sisting of a solitary ovule surrounded with imbricated persistent scales. Disk none. Seed large, ovoid, naked. Embryo at the apex of hard ruminated albu- men. Cotyledons 2, linear. — Trees, with whorled branches. Leaves distichous, rigid, persistent. Buds scaly. I. T. taxifolia, Am. Branchlets opposite, 2-ranked ; leaves linear, spiny- pointed, nearly sessile, light green ; sterile aments yellow, crowded ; seed ovoid, drupe-like. — Rich soil, along the east bank of the Apalachicola River, Middle Florida. March. — A middle sized tree, with durable strong-scented wood, and horizontal branches. Leaves very rigid, and pungent, 1' long. Seed smooth and glaucous, similar in shape and size to a nutmeg. CYCADACE^E. (CYCAS FAMILY.) 437 ORDER 133. CYCADACE^E. (CYCAS FAMILY.) Trees or shrubs, with simple trunks, increasing by a terminal bud, like the Palms, and composed of a large pith, mixed with woody bundles or plates, enclosed in a cylinder of woody fibre and spiral vessels. Leaves pinnate, coiled in the bud, like Ferns. Flowers dioecious, destitute of calyx and corolla. Sterile flowers consisting of 1 -celled anthers inserted under the peltate scales of a cone-like ament. Fertile flowers consisting of naked ovules inserted under the scales like the sterile flowers, or on the margins of contracted leaves. Seed nut-like. Embryo in the axis of the albumen. Radicle ending in a long spiral cord. Cotyledons 2. 1. ZAMIA, L. Flowers in cone-like aments, with the peltate scales inserted on all sides of the common rachis. Anthers numerous. Ovules by pairs, pendulous. Seed round- ish, drupe-like. — Leaflets thickened at the base and articulated with the petioles, with numerous simple veins. 1. Z. integrifolia, Willd. (COONTIE.) Stem short, globular or oblong ; leaves petioled, spreading, with the numerous lanceolate or linear-lanceolate leaf- lets entire, or serrate near the apex ; aments oblong, obtuse, short-peduncled. — Low grounds, South Florida. — The stem abounds in starch, from which the Florida Arrowroot is obtained. CLASS II. 10NOCOTYLEDONOUS OB ENDOGENOUS PLANTS, Stems composed of cellular tissue and scattered bundles of woody fibre and vessels, destitute of proper pith, bark, or concentric layers, and increasing in diameter by the deposi- tion of new fibrous bundles. Leaves mostly alternate, entire, and parallel- veined, commonly sheathing at the base, seldom falling off by an articulation. Floral envelopes usually by threes. Cotyledons single. ORDER 134. PAL.MJE. (PALMS.) Chiefly trees, with a thick woody stem (caudex), growing by a terminal bud, pinnate or fan-shaped leaves, which are plaited in the bud, and a spadix of small perfect or polygamous flowers. Sepals and petals 3, free or more or less united, persistent. Stamens mostly 6, hypogynous or pe- rigynous : anthers 2-celled, introrse. Ovary 3-celled, commonly with a 37* 438 PALMES. (PALMS.) single erect orthotropous or anatropous ovule in each cell. Styles 3, mostly united : stigmas entire. Fruit a drupe or berry. Embryo cylin- drical, placed in a cavity of the hard albumen, near the circumference of the seed. — Stems erect or creeping. Leaves long-petioled. Spadix axillary. 1. SABAL, Adans. PALMETTO. Flowers perfect, sessile, bracted. Calyx cup-shaped, 3-cleft. Corolla 3- petalled. Stamens 6, hypogynous ; the filaments subulate, distinct. Anthers cordate-ovate, horizontal. Ovary 3-celled. Styles united, 3-angled : stigma capitate or obtuse. Fruit a 1 -seeded drupe. Embryo dorsal. Albumen ho- mogeneous, horny. — Stems simple or branched, erect or creeping. Leaves fan-shaped, long-petioled, with the divisions 2-cleft at the apex and often with long thread-like filaments interposed. Spadix long, branching, with sheathing spathes |it the joints. Flowers small, whitish, rigid. Drupe oblong or globose. Sheaths of the leaves commonly composed of dry interlaced fibres. 1. S. Palmetto, R. & S. (CABBAGE-PALMETTO.) Stem erect, tall, sim- ple, leafy at the summit ; leaves large, cordate in outline, pinnatifid-fan-shaped, recurved at the summit, mostly shorter than the smooth concave petiole ; the very numerous divisions deeply cleft, an (i with thread-like filaments at the si- nuses ; spadix smooth and spreading, commonly shorter than the leaves ; petals slightly united at the base ; style thick ; drupe globose. (Chamaerops Palmetto, Michx.) — Sandy soil along the coast, Florida to North Carolina. June. — Stem 20° - 40° high. Leaves 5° - 8° long, their bases long-persistent. Drupe black, 4" - 5" in diameter. 2. S. serrulata, R. & S. (SAW-PALMETTO.) Stem creeping, branching ; leaves circular in outline, fan-shaped, bright-green, shorter than the slender plano-convex more or less spiny-edged petiole; the numerous (15-30) erect divisions slightly cleft at the apex, and without thread-like filaments in the si- nuses ; spadix densely tomentose, much shorter than the leaves ; petals scarcely united; style slender; drupe ovoid-oblong. (S. minima, Nutt.? Chamasrops, Pursh.) — Sandy soil in the lower districts, Florida to South Carolina. June. — Stem 4° - 8° long. Leaves 2° - 4° high. Drupe black, 8" - 9" long. 3. S. Adansonii, Guerns. (DWARF PALMETTO.) Stem short, buried in the earth; leaves circular in outline, glaucous, fan-shaped, slightly pinnatifid, longer than the stout concave smooth-edged petiole; the numerous (20-30) divisions slightly cleft at the apex, sparingly filamentose at the sinuses ; spa- dix erect, smooth, slender, much longer than the leaves ; petals united at the base ; style thick ; drupe globose. (S. pumila, Ell.) — Low grounds in the lower districts, Florida to North Carolina. June and July. — Leaves 2° -3° high. Spadix 3° - 6° high. Drupe 4" in diameter, black. Nut hemispherical. 2. CHAM-SHOPS, L. Flowers polygamous, bracted. Calyx 3-cleft. Corolla 3-petalled. Stamens 6-9, with the filaments connate at the -base : 'anthers oblong. Ovaries 3, more ARACE^E. (ARUM FAJHILY.) 439 or less united. Stigmas acute, stigmatic on the inner face. Drupes 1-3, one- seeded. Embryo dorsal, in horny somewhat ruminated albumen. — Low palms, with fan-like long-petioled leaves, destitute of thread-like filaments. Sheaths soon dry and net-like. Spadix dense-flowered, branching. Spathe 2-4-leaved. Flowers yellowish. Drupe globose or ovoid. 1. C. Hystrix, Fraser. (BLUE PALMETTO.) Stem short, proliferous; leaves circular in outline, with numerous 2 - 4-toothed divisions, on triangular rough-edged petioles ; sheaths persistent, composed of oblique fibres interwoven with numerous erect strong spines ; spadix small, short-peduncled ; spathes about 4, oblong, woolly, acutely 2-lipped ; petals ovoid ; drupe ovoid. — Low shady woods in the lower districts, Florida to South Carolina. June and July. — Stem 2° -3° long, erect or creeping. Leaves somewhat glaucous, 3° -4° high. Spadix 6' -12' long. Partial spathes none. Drupe 6" -9" long. ORDER 135. ARACE^S. (ARUM FAMILY.) Acrid chiefly stemless herbs, from tuberous or creeping rootstocks, with entire or divided often veiny leaves, and perfect or monoscious flowers borne on a spadix, and commonly enclosed in a spathe. — Calyx and corolla wanting, or the former with scale-like sepals. Stamens short, hypogynous : anthers extrorse, commonly sunk in the thick connective. Ovary 1 - several-celled, with 1 -several ovules in each cell. Stigma ses- sile. Fruit fleshy, indehiscent. Embryo straight. Albumen mealy or fleshy, sometimes wanting. Synopsis. * Calyx and cordlla none. Spadix enclosed in a spathe. Flowers monoecious. •«- Fertile flowers numerous. Spadix free. 1. ARIS-3EMA. Spathe thin, convolute at the base, arching above. Spadix barren abote. Leaves 3 - several-lobed. 2. PELTANDRA. Spathe (green) thick, convolute throughout, wavy on the margins. Spa- dix flowering throughout Leaves sagittate. 3. XANTIIOiOMA. Spathe convolute at the base, open and white above. Spadix flowering throughout. Leaves sagittate. H- M- Fertile flower solitary. Spadix adnate to the spathe. 4. PISTIA. Free-floating aquatics. Fertile flowers solitary. * * Calyx manifest. Flowers perfect. H- Spadix enclosed in a spathe. 5. SYMPLOCARPUS. Spathe thick and fleshy, convolute, pointed. Spadix globular. Sepals and stamens 4. +- •»- Spadix naked. 6. ORONTIUM. Spadix terminating the club-shaped white-topped scape. 7. ACORUS. Spadix attached to the side of the flattened leaf-like scape. 1. ARIS-SIMA, Mart. INDIAN TURNIP. Spathe convolute below, dilated and commonly arched above, withering. Spadix covered below with monoecious flowers (the lower ones fertile), clon- 440 ARACE^E. (ARUM FAMILY.) gated and naked above. Calyx and corolla none. Stamens 4 in a whorl, very short : anther-cells 2-4, distinct, opening at the top. Ovary 1-celled, with 5-6 erect orthorropous ovules. Stigma sessile. Fruit a 1 - few-seeded scarlet berry. Embryo in the axis of mealy albumen. — Root tuberous. Petioles of the com- monly divided and veiny leaves elongated and sheathing the scape. Fruit-clus- ters naked. 1. A. triphyllum, Torr. (WAKE-ROBIN.) Leaves two, trifoliate ; leaf- lets sessile, oblong-ovate, acuminate ; spathe tubular, dilated, flattened and incurved above, acuminate, green, or variegated with white and purple, longer than the club-shaped obtuse often dioecious spadix. (Arum triphyllum, L.) — Low rich woods, Florida, and northward. March. — Plant 1° - 1£° high. Leaf- lets 3' - 6' long. Root depressed, rugose, intensely acrid. 2. A. polymorphum. Leaf solitary, 3 - 5-foliolate ; leaflets varying * from oblong to obovate, acute or slightly acuminate, nearly sessile, the lateral ones entire, 2-lobed or 2-parted to the base ; spathe, &c. as in the preceding. (Arum polymorphum, Buckley. A. quinatum, Nutt. ?) — Mountains of North Carolina. — Plant 1° - 1^° high. 3. A. Dracontium, Schott. (DRAGON-ROOT.) Leaf solitary, pedately 9 - 13-foliolate ; leaflets petioled, entire, lanceolate or oblong, acuminate ; spathe tubular (green), concave and erect above, much shorter than the very slender spadix. (Arum Dracontium, L.) — Rich woods, Florida, and northward. March and April. — Plant 1°- l£° high. Berries numerous on the flat rhachis, 1 - 3-seeded. 2. PELTANDKA, Raf. ARROW-ARUM. Spathe elongated, fleshy, convolute throughout, wavy on the margins, curved at the apex, persistent at the base. Spadix long, wholly covered by the mo- noecious flowers. Calyx and corolla none. Anther-cells 5-6, imbedded in the thick peltate connective, opening by a terminal pore. Ovary 1-celled, with sev- eral orthotropous ovules. Berry 1 - 3-seeded. Seed gelatinous, without albu- men. Embryo large. Plumule conspicuous, curved. — A fleshy stemless marsh herb, from a creeping rhizoma. Leaves sagittate, with the petiole sheathing the base of the thick scape. Fruit-clusters enclosed in the fleshy persistent base of the spathe. 1. P. Virginica, Raf. Leaves several, oblong, acute, finely veined, and with 2-3 intramarginal nerves, the lobes obtuse ; scapes shorter than the leaves recurved in fruit ; spathe lanceolate, acute, longer than the cylindrical spadix, both early decaying above the fertile flowers ; berries green, in a globose cluster, 1-seeded. (Arum Virginicum, L.) — Marshes and wet places, Florida, and northward. April and May. — Plant 1° high. Spatbes 2'- 4' long. 3. XANTHOSOMA, Schott. Spathe convolute at the base, straight. Spadix sterile in the middle. Calyx and corolla none. Anther-cells numerous, adnate to the conical truncate (ARUM FAMILY.) 441 connective, opening at the apex. Ovaries numerous, crowded, somewhat 4-ccllcd, with numerous horizontal ovules in each cell. Style short and thick : stigma broad, depressed, lobed. Berry red, many-seeded. — Herbs. Petioles of the sagittate leaves sheathing the base of the scape. 1. X. sagittifolium, Schott. Stemless ; leaves glaucous, hastate-cordate, acuminate, the lobes oblong, obtuse ; spathe hooded at the summit, oval-lanceo- late, white, longer than the spadix. — Marshes and springy places, near Savan- nah, Elliott, and Wilmington, Curtis. May and June. 1J. — Root tuberous. Petioles 12'- 15' long. Leaves 5' -7' long, the lobes somewhat spreading and generally obtuse. Scape as long as the petioles. 4. PISTIA, L. Spathe tubular at the base, spreading above, united with the spadix. Flowers few, monoecious, the upper ones staminate and supported by a cup-shaped invo- lucre ; the fertile solitary. Calyx and corolla none. Anther-cells 3-8, opening transversely. Ovary 1-celled, with several erect orthotropous ovules. Stylo thick: stigma disk-like. Berry few -many-seeded. Embryo at the apex of the albumen. — Small free-floating aquatic herbs, with fibrous roots, and entire clustered spreading leaves, with the flowers in their axils. 1. P. spathulata, Michx. Leaves arranged in a circle, round-obovate, abruptly contracted into a short petiole, with the nerves projecting beneath (la- melliform) ; roots numerous, elongated; spathe short-pedunclcd, white. — In still water, East Florida, and westward. — Leaves l'-2' long. 5. SYMPLOCABPUS, Salisb. SKUNK-CABBAGE. Spathe hooded-shell-form, acuminate, fleshy, early decaying. Spadix pedun- cled, globose, covered with the perfect flowers. Sepals 4, hooded, berry-like in fruit. Corolla none. Stamens 4 : anthers 2-celled, opening lengthwise. Ovary 1-celled, 1-ovuled. Style pyramidal, 4-angled ; stigma minute. Berries with the sepals united in a mass. Seeds globose, without albumen. Embryo thick and fleshy. — Perennial garlic-scented herbs, from a deep and thick rhizoma, with large stout-petioled veiny leaves, and nearly sessile spathes, appearing be- fore the leaves. 1. S. foetidus, Salisb. Leaves thin, oval, cordate, short-petioled ; spathe ovate, incurved, spotted with purple and yellow; spadix dull-purple, much shorter than the spathe, enlarged in fruit. (Pothos foetidus, Michx.) — Bogs and swamps, North Carolina, and northward. Feb. and March. — Leaves l°-2° long. Spathe 2' - 4' long. Spadix in fruit 2' - 3' in diameter. Seeds about the size of a pea. 6. ORONTIUM, L. GOLDEN-CLUB. Spathe none. Spadix cylindrical, covered with the yellow perfect flowers. Sepals and stamens 4-6. Anthers 2-celled, opening lengthwise. Ovary 1-celled, 442 LEMNACE^E. (DUCKWEED FAMILY.) with a single amphitropous ovule. Stigma minute, sessile. Fruit green. Seed without albumen. Embryo thick and fleshy. — A perennial aquatic herb, with oblong long-petioled leaves, and a yellow erect spadix terminating the club- 1. O. aquaticum, L. Rhizoma deep, fleshy; leaves acute, nerved, on stout terete petioles ; scape terete, thickened upward, white beneath the spadix, sheathed below, commonly curved. — Ponds and slow-flowing streams, Florida, and northward. March and April. — Leaves about 1° long. Scape l°-2° long. Spadix 1' - 2' long ; the upper flowers mostly tetrandrous. 7. ACORUS, L. CALAMUS. SWEET FLAG. Scape flattened, leaf-like, with the lateral sessile spadix covered with the per- fect flowers. Spathe none. Sepals and stamens 6. Corolla none. Filaments slender: anthers kidney-shaped, 1-celled, opening transversely. Ovary 2-3- celled, with several orthotropous suspended ovules in each cell. Stigma minute. Fruit dry, gelatinous within, 1 - few-seeded. Embryo in the axis of the albu- men. — Perennial herbs, from a creeping aromatic rhizoma. Leaves erect, long, flattened, 2-edged. Scape leaf-like, elongated above the spadix. 1. A. Calamus, L. — Wet places, Florida, and northward, apparently in- troduced. April. — Rhizoma rather slender, pungent. Leaves l°-2° high, linear-lanceolate. Scape narrower than the leaves. Spadix cylindrical, yellow- ish, 2' - 3' long, spreading. ORDER 136. LiEMNACE^E. (DUCKWEED FAMILY.) Minute aquatic floating plants, with lenticular proliferous stems (fronds), and usually simple roots, pendent from beneath. Flowers monoecious, mostly from a marginal cleft of the stem. Spathe membranaceous, pitcher-shaped, bursting into two unequal lobes, soon vanishing, commonly enclosing two sterile flowers, which are reduced to single slender filaments bearing a 2-celled anther, and a single sessile 1-celled ovary, which forms in fruit a 1-7-seeded utricle. Embryo straight, in the axis of fleshy albumen. 1. LEMNA, L. DUCKWEED. Spathes marginal, 3-flowered. Anthers opening transversely Stigma funnel- form. Ovules erect from the base of the cell, anatropous or half-anatropous. — Stems increasing by lateral buds. Roots terminating in a calyptre-like append- age. — The flowers of these plants are seldom seen. 1. L. minor, L. Stems pale, round-obovate, flattened, single or variously clustered ; root single ; ovule solitary, half-anatropous ; seed horizontal. — Pools, ditches, &c., Florida, and northward ; common near the coast, and probably intermixed with L. perpusilla, Torr. — Stems l"-2" long. TYPHACE^:. (CAT-TAIL FAMILY.) 443 2. L. polyrhiza, L. Stems roundish or obovate, flat and pale above, convex and dark purple beneath, clustered ; roots numerous, clustered ; ovules 2. — Ponds, Florida, and northward. — Less common than the preceding. Stems 2" -4" long. ORDER 137. TYPHACE^E. (CAT-TAIL FAMILY.) Simple-stemmed marsh herbs, with elongated strap-shaped nerved leaves, and monoecious flowers, on a globular or cylindrical spadix, desti- tute of floral envelopes, but enveloped in copious pappus-like hairs or scales. Spathe bract-like or none. Anthers single or 2 - 4 together, on long and slender filaments. Ovary 1-celled, with a single suspended anatropous ovule. Style slender. Fruit nut-like. Embryo straight in copious albumen. — Sterile spadix placed above the fertile, continuous or distant. 1. TYPHA, Tourn. CAT-TAIL. Flowers densely crowded on a long cylindrical terminal spadix, enveloped in copious pappus-like hairs ; the sterile ones sessile on the upper part of the spa- dix, the fertile on slender stalks. Style filiform : stigma lateral. Embryo cylin- drical, in the axis of fleshy albumen. — Stems straight, from a thick rhizoma, clothed below with the sheathing bases of the elongated linear leaves. Spathes bract-like and deciduous, or none. 1. T. latifolia, L. Stem terete, jointed below; leaves nearly as long as the stem, erect, flat, reticulated and somewhat glaucous ; sterile and fertile por- tions of the spadix contiguous, cylindrical. — Margins of ponds and rivers, Florida, and northward. July and Aug. — Stem 4° - 6° high, scape-like above. Leaves about 1' wide. Spadix about 1° long. — T. angustifolia, L., if found within our limits, may be known by narrower leaves which are channelled near the base, and by the interval which separates the sterile and fertile portions of the spadix. 2. SPARGANIUM, L. BUR-REED. Flowers densely crowded in globular heads, surrounded by several scales like a calyx ; the upper heads sterile, naked, the lower fertile and commonly bracted. Ovary sessile, pointed by the short persistent style. Stigma lateral. Fruit nut- like. Embryo cylindrical, in the axis of fleshy albumen. — Marsh or aquatic plants, with erect stems, and long strap-shaped sessile leaves, the lowest ones sheathing. Heads of flowers scattered. 1. S. ramosum, Huds. ? Leaves flat, obtuse, the upper ones gradually shorter, concave and clasping at the base, the lower sheathing and elongated ; heads 5-9, disposed in axillary and terminal interrupted spikes ; the lowest one larger and pistillate, the others wholly staminate ; scales wedge-shaped ; stigma subulate, simple. (S. Americanum, Ell.) — Lagoons and ditches, Florida, and northward. July. — Stem 2° -3° high. Leaves as long as the stem, 8" -12" wide. Heads of fertile flowers 8" - 10" in diameter. 444 NAIAD ACE.E. (POND WEED FAMILY.) ORDER 138. NAIADACE7E. (PONDWEED FAMILY.) Aquatic herbs, with slender jointed leafy immersed stems, and perfect monoecious or dioecious flowers, destitute of floral envelopes, or with a scale-like calyx. Stamens 1-4: anthers 1-4-celled. Ovary 1-cclled, forming a 1-seeded achenium in fruit. Stigmas 1-4. Seed without al- bumen. Embryo straight, curved, qr coiled. — Leaves sheathing, or with sheathing stipules. Flowers commonly enclosed in a spathe. Synopsis. * Flowers monoecious or dioecious. 1. NAIAS. Stigmas 2-4. Flowers naked. Leaves opposite or whorled. 2. ZOSTERA. Stigmas 2. Flowers enclosed in a spathe. Leaves alternate. 3. ZANNICIIELLIA. Stigma single, peltate. Ovaries 4, from a cup-like involucre. * * Flowers perfect. 4. RUPPIA. Fruit long-peduncled, umbellate. Calyx and corolla none. 5. POTAMOGETON. Fruit sessile, spiked. Calyx 4-leaved- 1. NAIAS, L. Flowers monoecious or dioecious, axillary, sessile, destitute of calyx and co- rolla. Sterile flower monandrous, enclosed in a spathe. Anther 4-celled, open- ing at the apex, the filament lengthening. Fertile flower naked ; the sessile ovary pointed with the slender style. Stigmas 2-4, subulate. Ovule erect. Achenium minute. Embryo straight. Radicle inferior. — Stems filiform, fork- ing. Leaves opposite or whorled, linear, dilated into a short sheath at the base. Flowers solitary, minute. 1. "N. flexilis, Rostk. Stem immersed (1°- 2° long) ; leaves 3 in a whorl, narrow-linear, membranaceous, spreading, minutely denticulate on the margins, the lower ones often remote; stigmas 3 -4; achenium elliptical, acute, smooth, yellowish. (Caulinia flexilis, Willd.} — In ponds and still water, South Caro- lina, and northward. July and Aug. — Leaves about 1' long. Var. ? fusiformis. Stem (6' -12' long) almost capillary, very leafy throughout; leaves opposite, approximate, spreading or recurved (2" -4" long) ; achenium narrowly spindle-shaped, finely reticulated, brownish. — Brackish water along the coast. West Florida. July and Aug. 2. ZOSTERA, L. EEL-GBASS. Flowers monoecious, naked ; the sterile and fertile ones alternately arranged on the anterior edge of a flattened membranaceous spadix, and enclosed in the sheath-like base of the leaves. Anthers oblong, 1 -celled, filled with fine filaments instead of pollen-grains. Ovary fixed near the apex, containing a single pen- dulous orthotropous ovule, and pointed with the subulate persistent style. Stig- mas 2, capillary. Utricle bursting irregularly. Seeds striate. Cotyledons in- flexed-curved, received in a longitudinal cleft of the embryo, — Marine herbs, with creeping stems, and narrowly linear obtuse and elongated sheathing leaves. XAIADACE2E. (PONDWEED FAMILY.) 445 1 . Z. marina, L. Stem slender, terete, jointed ; leaves thin and tender, faintly 3 - 5-nerved ; flowers in two rows on the linear spadix. — Deep salt- water coves. West Florida, and northward. Aug. and Sept. 3. ZANNICHELLIA, L. Flowers monoecious, axillary. Sterile flower consisting of a solitary naked filament bearing a 2 - 4-celled anther. Fertile flower from the same axil, com- posed of 2 - 6 sessile 1-celled ovaries, surrounded by a cup-shaped involucre, and pointed with the slender style. Stigma obliquely peltate. Ovule suspended, orthotropous. Achenium oblong, stalked. Embryo slender, coiled. — Sub- merged aquatic plants, with filiform branching stems, and very narrow and entire alternate leaves, with sheathing stipules. 1. Z. palustris, L. Stems tufted, filiform, alternately branched; leaves narrowly linear, entire, acute, 1 -nerved ; anther 2-celled, on a long and slender filament; achenia 3-6 in a cluster, commonly raised on a short common pe- duncle, each stalked, linear-oblong, somewhat compressed aud curved, smooth and wingless, about one third longer than the persistent style. — Fresh or brack- ish water, West Florida, and northward. May -Aug. — Stems l°-3° long. Leaves 1' - 2' long. 4. RUPPIA, L. DITCH-GRASS. Flowers perfect, naked, two or more on a slender spadix, enclosed in the spathe-like sheaths of the leaves, but soon long-exserted. Stamens 2, closely sessile : anther-cells large, distinct. Ovaries 4, sessile, containing a single sus- pended campylotropous ovule. Stigma peltate. Achenium stalked, obliquely ovate. Embryo pointed by the short plumule. — Salt-water herbs, with filiform branching stems, and alternate linear or bristle-like sheathing leaves. 1 . R. mar itima, L. — In shallow water, along the coast, Florida, and northward. May -Aug. — Stems immersed, l°-3° long, mostly creeping at the base. Leaves filiform, l'-3' long, with dilated membranaceous sheaths. Fruiting peduncles l'-4' long. Achenium pointed. 5. POTAMOGETON, Tourn. PONDWEED. Flowers perfect, spiked. Sepals 4, roundish, valvate in the bud. Stamens 4, opposite the sepals : filaments short : anthers 2-celled. Ovaries 4, sessile. Ovules ascending, campylotropous. Style short or none : stigma peltate. Achenia 1-4, compressed. Embryo curved or coiled. — Aquatic herbs, with immersed slender and jointed stems. Leaves stipulate, alternate and opposite, either all immersed fmd commonly membranaceous, or the upper ones floating and more rigid. Spikes peduncled, axillary and terminal. * Leaves all immersed and alike. •«- Leaves filiform . 1 . P. pectinatllS, L. Stem slender, flexuous ; the branches diffusely forking, distichous ; leaves long, thickish, slightly channelled, approximate on 38 446 NAIADACE^:. (PONDWEED FAMILY.) the branches ; stipules small, united with the long and sheathing base of the leaves ; spikes slender, interrupted, on long filiform peduncles ; achenium obovate, smooth, slightly compressed, keeled on the back. -—Fresh or brackish water, West Florida, and northward. June - Aug. — Stems 2° - 3° long. Leaves 3' - 4' long. Spikes 1 ' - 2' long. 2. P. pauciflorus, Pursh. Stem very slender, flattened, sparingly branched; leaves scattered, thin, 3-nerved, sessile ; stipules free from the leaves, connate, sheathing ; spikes short-peduncled, 4 - 6-flowered, globose in fruit ; achenium round-obovate, short-pointed, keeled and sinuate-toothed on the back. — Shallow ponds, Georgia, and northward. July and Aug. — Stem 1° - 2° long. Leaves 1'- 2' long. Peduncles £'- 1' long. •<- -i- Leaves lanceolate or cordate : stipules free, sheathing. 3. P. perfoliatus, L. Stem terete, branching, very leafy ; leaves ovate, cordate, clasping, obtuse, many-nerved, those at the branches and peduncles opposite ; spikes lateral and terminal, oblong, densely many-flowered, on stout peduncles 2-3 times as long as the leaves ; achenium obliquely obovate, rounded on the back, short-pointed. — Fresh or brackish water, West Florida, and north- ward. July - Sept. — Stems 1° - 2° long. Leaves 6" - 8" long. 4. P. lucens, L. ? Stems sparingly branched ; leaves lanceolate, acute, contracted and sessile at the base, pellucid, 5 - 9-nerved, wavy on the margins ; stipules (white) connate, rounded on the back ; spikes cylindrical, many-flow- ered, on stout peduncles shorter than the leaves ; achenium (immature) oval, compressed, rounded on the back, short-pointed. — Fresh water, Apalachicola, Florida. Aug. — Stems 2° -3° long. Leaves 2' -3' long, equalling the spikes. * * Leaves of two forms ; the immersed ones thin and pellucid, the floating ones long- petioled and somewhat coriaceous. 5. P. fluitans, Roth. Stem simple; leaves many-nerved; the floating ones varying from oblong-lanceolate to ovate, acute at each end, or obtuse or cordate at the base; the others large, oblong, gradually or abruptly short- petioled, undulate ; stipules connate and keeled on the back ; peduncles stout, thickened upward ; spikes long, cylindrical, dense-flowered ; achenium smooth, 1 - 3-keeled on the back. — Fresh-water ponds and streams, Florida, and north- ward. June - Aug. — Leaves 2' - 9' long. P. NATANS, L. probably occurs within our limits, but I have not seen specimens. It may be known by longer-petioled (4'- 12') leaves, more slender peduncles, and rounded stipules and achenia. 6. P. heterophyllllS, Schreber. Stem slender, branching ; floating leaves small, thin, elliptical or oblong-linear, on filiform petioles ; immersed leaves long, sessile, linear or lanceolate ; stipules connate, 2-ribbed; peduncles thickened up- ward ; spikes narrowly cylindrical ; achenium smooth, slightly keeled on the back. — Shallow ponds, North Carolina, and northward. July. — Floating leaves 1'- 2' long. Immersed leaves 4' - 6' long. 7. P. hybridUS, Michx. Small; stems very slender, branched; floating leaves lanceolate or elliptical, commonly acute at each end, shining and strongly ALISMACE^E. (WATER-PLANTAIN FAMILY.) 447 impressed-ncrved, longer than the filiform petioles ; immersed leaves filiform, scattered ; spikes oval or oblong, short-peduncled ; achenium nearly circular, concave on the sides, rugose or tuberculate, and 1 - 3-ridged on the back ; embryo coiled. (P. setaceus, Pursh. P. heterophyllus, Ell. ?) — Shallow ponds, Florida, and northward. June -Aug. — Floating leaves 6" -8" long, com- monly 5-nerved. ORDER 139. ALISMACE^E. (WATER-PLANTAIN FAMILY.) Marsh herbs, usually with creeping runners or rootstocks, nerved and reticulated sheathing leaves, and scape-like stems, bearing the perfect or monoecious flowers in spikes or whorled racemes. — Sepals and petals 3, or the latter sometimes wanting. Stamens few or numerous : anthers 2- celled. Ovaries 3 or many, with 1-2 anatropous or campylotropous erect ovules. Style short or none. Achenium coriaceous, 1 - 2-seeded. Em- bryo straight or curved, without albumen. Synopsis. SUBORDER I. JTINCAGINE^E. Sepals and petals (when present) greenish. Ovule anatropous. Embryo straight 1. TRIGLOCHIN. Leaves rush-like. Flowers in spiked racemes. SUBORDER II. ALISME2E. Petals white, deciduous. Ovule cam- pylotropous. Embryo curved or hooked. 2. ALISMA. Flowers perfect. Achenia whorled. Racemes compound. 3. ECHINODORUS. Flowers perfect. Achenia clustered in a head. 4. SAGITTARIA. Flowers monoecious. Achenia clustered in a head. 1. TRIGLOCHIN, L. Flowers perfect, in a spiked raceme. Sepals 3. Petals 3, and greenish, like the sepals, or none. Anthers 3-6, nearly sessile, oval. Ovaries 3-6, united around a central axis, from which they separate at maturity, 1-ovuled. Stigmas plumose. Embryo straight. — Leaves rush-like, fleshy, 2-ranked. Flowers small, bractless. 1. T. triandrum, Michx. Leaves erect, linear-subulate, semi-terete, di- lated at the base and sheathing the base of the terete scape ; flowers very numer- ous, on short pedicels ; sepals oval, deciduous ; petals none ; anthers and ovaries 3; fruit globose-triangular, pointless, when dry 3-winged by the compressed 3-ribbed achenia ; embryo oblong. — Salt marshes along the coast, West Florida to North Carolina. Aug. - Sept. — Scape and leaves £° - 1° high. 2. ALISMA, L. WATER-PLANTAIN. Flowers perfect in a whorled panicle. Sepals 3. Petals 3, involute in the bud, deciduous. Stamens 6 - 12. Ovaries numerous in a simple whorl. Style 448 ALISMACEwE. ( WATER-PLANTAIN FAMILY.) short. Achenium 1 -seeded, 2- 3-keeled on the back. — Roots fibrous. Leaves mostly oval or cordate, nerved, shorter than the scape. Flowers white. 1. A. PlantagO, L. Leaves long-petioled, ovate or oblong, acute, rounded or cordate at the base, 3 - 9-nerved ; panicle large, lax, the whorled branches and elongated filiform pedicels bracted at the base; achenia obtuse, 15-20 in a whorl. (A. trivialis, and A. parviflora, Pursh.) — Ditches and margins of ponds in the upper districts, Georgia, and northward. July and Aug. — Leaves 2'- 4' long. Panicle 1 ° - 2° long. 3. ECHINODOBUS, Richard. Flowers perfect, mostly in whorled racemes. Sepals 3. Petals 3, imbricated in the bud, withering. Stamens few or numerous. Ovaries few or many, im- bricated, forming ribbed achenia in fruit, usually beaked with the persistent style. — Herbs, with petioled nerved leaves. Heads mostly bur-like. 1. E. parvulus, Engelm. Small; leaves lanceolate or spatulate, mostly acute, finely nerved and somewhat pinnately-veined, commonly shorter than the single or clustered 1 - 6-flowered scapes ; flowers mostly clustered or umbelled, on long bracted pedicels which are recurved in fruit, stamens 9 ; achenia few, shorter than the ovate sepals, obovate, flattened at the sides, and surrounded with 5 prominent ribs, beakless. — Margins of shallow ponds, Middle Florida, and westward. July and Aug. — Scapes l'-4' high. Achenia black and shining. 2. E. rostratus, Engelm. Leaves varying from lanceolate to ovate, acute attach end, or rounded or cordate at the base, 5-nerved, about as long as the petiole ; scape rigid, erect, longer than the leaves ; whorls few ; pedicels erect or spreading ; sepals ovate, many-nerved, shorter than the oval bur-like head ; sta- mens 12 ; style longer than the ovary; achenia numerous, strongly 3-ribbed on the back, with fainter lateral and intermediate ribs, beaked with the long persist- ent style. — South Florida, and westward. — Scape simple, 3'- 8' high, or oc- casionally 2° high and paniculately branched. Leaves 1' -2' long. Flowers 5" wide. 3. E. radicans, Engelm. Leaves large, long-petioled, ovate, cordate or truncate at the base, obtuse, 7 - 9-ribbed ; scape elongated, prostrate, rooting and proliferous; whorls several, remote; pedicels slender, spreading, or recurved; stamens about 20 ; style shorter than the ovary ; heads globose, longer than the many-nerved sepals ; achenia very numerous, short-beaked, ribbed and slightly denticulate on the back. (Alisma radicans, Nutt.) — Swamps, Florida to North Carolina, and westward. July - Sept. — Scape 2° - 4° long. Leaves 3' - 8' long. Flowers 8" -12" wide. 4. SAGITTARIA, L. ARROW-GRASS. Flowers monoecious, in a whorled raceme, the upper ones sterile. Sepals 3, persistent. Petals 3, imbricated in the bud, withering. Stamens few or many. Ovai-ies crowded in a globular head. Achenia flat, membranaceous, winged. — Marsh or aquatic herbs, with scape-like stems, and variously-shaped nerved and ALISMACE^E. (\VATER-PLANTAIN FAMILY.) 449 reticulated sheathing leaves, which are often without a blade. Flowers white, commonly 3 in a whorl from the axils of persistent bracts. # Filaments long and slender. 1. S. falcata, Pursh. Tall; leaves erect, rigid, broadly lanceolate, acute at each end, pinnately nerved, on long and stout petioles ; scape longer than the leaves, often branching above ; pedicels of the sterile flowers slender, longer than those of the fertile ones; bracts and sepals ovate, obtuse, granular-roughened; stamens numerous, with hairy filaments ; achenia obliquely obovatc, wing-keeled, strongly beaked. (S. lancifolia, Michx.) — Lakes and rivers, Florida to South Carolina, and westward. June -Sept. — Scape 2° -5° high. Leaves l°-2° long. Flowers l'-l£' wide. 2. S. variabilis, Engelm. Leaves mostly sagittate, acute or obtuse, vary- ing from linear to broadly ovate, smooth, or rarely, like the scape, bracts, and sepals, pubescent; bracts acute; flowers mostly large; pedicels of the sterile flowers twice as long as those of the fertile ones ; achenia obovate, beaked ; fila- ments smooth. (S. sagittifolia, hastata, pubescens, &c. of authors.) — Marshes, ditches, &c., Florida, and northward. July -Sept. — Scape l°-3° high, an- gled. Leaves 2' - 12' long. * * Filaments short, thickened at the base. 3. S. heterophylla, Pursh. Scape weak; leaves linear or lanceolate, and acute at each end, or elliptical, and obtuse or sagittate at the base ; bracts obtuse ; sterile flowers on long and slender pedicels ; the fertile ones nearly sessile ; achenia narrowly obovate, long-beaked. — Margins of ponds and streams, Florida, and northward. — Leaves 2' -4' long. Scape few-flowered, the lowest whorl only bearing fertile flowers. 4. S. simplex, Pursh. Scape slender, commonly prostrate in fruit, simple or branched ; leaves linear or lanceolate, acute at each end, 3-nerved, erect, the earliest mostly destitute of a blade ; bracts membranaceous ; flowers small, all on long filiform pedicels; stamens 10-12, hairy at the base; achenia obovate, wing-keeled, beakless. (S. graminea, Michx.) — Shallow ponds in the pine bar- rens, Florida, and northward. May - Oct. — Scape 10' - 1 5' high, usually longer than the leaves. 5. S. natans, Michx. Small; leaves floating, ovate-oblong or elliptical, obtuse at each end or the lowest slightly cordate, 5 - 7-nerved, about as long as the few-flowered scape : bracts membranaceous, acute ; pedicels of the fertile flowers stouter than those of the sterile ones, recurved in fruit ; stamens 7 or 8 ; achenia obovate, 3-ribbed on the back, short-beaked. — Shallow ponds and streams, Florida to South Carolina. June - Sept. — Scapes 3' - 6' long. Leaves 1'- 2' long. Var. lorata. Leaves strap-shaped, obtuse, without a blade, nerveless ; scapes floating or erect; flowers sometimes dioecious; achenia conspicuously beaked, pimpled. — Brackish water, along the west coast of Florida. May -Sept. — When growing in deep water the floating scapes are 2° -3° long; when on muddy banks, only 3' - 5' high, and the short leaves bear much resemblance to those of Crantzia lineata. In this" state it is probably S. pusilla, Pursh. 38* 450 HYDROCHARIDACEJE. (FROG's-BIT FAMILY.) ORDER 140. HYDROCHARIDACE^E. (FROG'S-BIT FAMILY.) Aquatic herbs, with monoecious or dioecious flowers, from a membrana- ceous spathe. Sepals and petals 3, or the latter wanting, distinct in the sterile flower, united into a tube in the fertile, and coherent with the 1-9- celled ovary. Stamens 3-12. Ovules numerous, ascending, orthotropous. Stigmas 3-9. Fruit indehiscent, many-seeded. Embryo straight, without albumen. Synopsis. * Ovary 1-celled. Stigmas 3. 1. ANACHARIS. Flowers polygamo-dioecious. Spathe sessile. Stamens 9. Leaves short, opposite or whorled. 2. VALLISNERIA. Flowers dioecious. Spathe peduncled. Stamens 3. Leaves long, linear. * * Cells of the ovary and stigmas 6-9. 3. LIMNOBIUM. Flowers monoecious. Stamens 6-9, monadelphous. Leaves cordate, petioled. 1. ANACHARIS, Rich. Flowers dioeciously polygamous, enclosed in the bud in a 2-cleft axillary sessile spathe. Sterile flowers minute. Sepals and petals 3. Anthers 9. Fer- tile flowers pistillate or perfect. Sepals and petals united into a very long and slender 6-parted tube. Stamens 3-6, perfect or sterile. Ovary 1-celled, with three parietal placenta?, few-ovuled. Style capillary, adnate to the tube. Stig- mas 3, each 2-lobed, exserted. Fruit oblong, coriaceous. — Perennial herbs, with elongated filiform branching immersed stems, and small and very numer- ous opposite or whorled leaves. Fertilization effected by the sterile flowers breaking away from the stem, and expanding at the surface among the floating stigmas. 1. A. Canadensis, Planch. Stem much branched; leaves 3-4 in a whorl, sessile, varying from linear to elliptical, 1 -nerved, pellucid and minutely serrulate. (Udora Canadensis, Nutt.) — In slow-flowing streams and ponds, Cherokee, North Carolina, Curtis, and northward. July and Aug. — Leaves 3" -6" long. 2. VALLISNERIA, Micheli. TAPE-GRASS. Flowers dioecious. Sterile flowers numerous, minute, crowded on a spadix, which is enclosed in an ovate 3-leaved short-stalked spathe. Calyx 3-parted. Corolla none. Stamens 3. Fertile flowers solitary, enclosed in a tubular spathe, attd borne on a very long and mostly spiral scape. Sepals and small petals 3, united and coherent with the cylindrical 1-celled many-ovuled ovary. Stigmas 3, each 2-lobed. Seeds numerous, fixed to three parietal placentae. — Aquatic herbs, with creeping stems, and elongated strap-shaped leaves. Fertilization effected mostly as in Anacharis. • BURMANNIACEJ3. (BURMANNIA FAMILY.) 451 1 . V. spiralis, L. — Slow-flowing streams and ponds, Florida, and north- ward. July - Sept. 1|. — Plant creeping, proliferous. Leaves strap-shaped, obtuse, 5-9-nerved, sharply serrulatex l°-3° long, 6" -12" wide. Scape of the sterile flowers 1'- 4' long, of the fertile ones 2° - 5° long. Fruit 1'- 3' long, often curved. 3. LIMNOBIUM, Richard. Flowers monoecious, from a membranaceous mostly sessile spathe, peduncled. Sterile spathe entire, 2-3-flowered; the fertile 3-leaved, 1-flowercd. Sepals and petals 3, united in the fertile flower, and coherent with the ovary. Stamens 6 - 12, monadelphous : anthers linear. Ovary 6 - 9-celled, with as many central placenta;, forming a many-seeded berry in fruit. Stigmas 6-9, each 2-parted. — A floating aquatic herb, with copious pendent roots, long-petioled round- cordate and many-nerved leaves, and small white flowers. I . L. Spongia, Eichard. Stems extensively proliferous ; leaves purplish beneath, and with air-cells near the base ; sterile peduncles tender, soon vanish- ing ; the fertile ones commonly short and thick, recurved in fruit ; petals oblong, alternating in the fertile flower with a pair of minute sterile filaments. (Hydro- charis spongiosa, Bosc.) — Still water, Florida, and northward. July and Aug. . — Leaves 2' - 4' wide. ORDER 141. BURMANNIACEJ2. (BURMANNIA FAMILY.) Small herbs, with filiform stems, scale-like leaves, and regular perfect flowers. — Sepals and petals united to form a tubular unequally 6-cleft corolla-like perianth, with the tube coherent with the 1 or 3-celled many- ovuled ovary. Stamens 3 or 6, inserted on the tube of the perianth: anther-cells separate, 2-lobed, opening crosswise. Style slender : stigmas 3, dilated. Placentae 3, central or parietal. Capsule many-seeded. Seeds minute, with a loose or reticulated testa. 1. BURMANNIA, L. Tube of the perianth mostly 3-angled or 3-winged, 6-cleft, withering-persist- ent ; the three interior lobes smaller. Stamens 3, very short, inserted opposite the interior lobes of the perianth. Ovary 3-celled, with three thick 2-lobed cen- tral placentas. Stigmas globose, dilated or 2-lobed. Capsule splitting at the apex into 3 valves. — Radical leaves crowded and grass-like, or none ; those of the stem minute, scale-like. Flowers racemose or clustered. 1. B. biflora, L. Stem simple, or forked above, 1 - several-flowered ; leaves subulate, scattered ; perianth blue, broadly 3-winged, the exterior lobes erect, ovate, acute, the interior linear and incurved; seeds oblong, striate. (Tripte- rella coerulea, Michx.) — Grassy or mossy margins of swamps and ponds, Flor- ida to North Carolina. Sept. -Nov. — Stem l'-5' high. In this and the following species the seeds escape through irregular fissures at the sides of the capsule. 452 ORCHIDACE^E. (ORCHIS FAMILY.) 2. B. capitata. Stems setaceous, simple ; leaves subulate, scattered ; flowers several in a terminal cluster, white, tinged with blue ; perianth 3-angled, wingless, the interior lobes linear, erect ; seeds linear-oblong, spirally striate. (Tripterella capitata, Michx.) — Low or swampy pine barrens, Florida to North Carolina. Sept. - Nov. — Stems 2' - 6' high. 2. APTERIA, Nutt. Perianth terete, tubular-bell-shaped, 6-cleft, with the 3 interior lobes smaller. Stamens 3, very short, opposite the interior lobes of the perianth, the filaments flat and orbicular at the apex : anthers closely adhering to the globose stigmas. Ovary 1-celled, with three 2-winged parietal placentae. Capsule obovate, split- ting from the base into three valves, which remain attached to the apex of the persistent placentae. Seeds ovoid. — A small perennial herb, with subulate bract-like leaves, and scattered nodding flowers. 1. A. setacea, Nutt. Deep shady woods, along the margins of swamps, Florida, Georgia, and westward. Sept. and Oct. — Stem erect or ascending, purple, filiform, simple or branched, 2' - 8' high. Leaves scattered. Flowers few, distant, on nodding pedicels. Perianth white, 5" long. ORDER 142. ORCHIDACE^E. (ORCHIS FAMILY.) Perennial herbs, with simple stems, from thick fibrous or tuberous roots, nerved leaves, and irregular often showy flowers. — Perianth 6-parted, united below with the 1-celled ovary ; the three outer divisions (calyx) and commonly two of the inner ones (petals) similar in form ; but the third, posterior, or, by the twisting of the ovary, anterior one (Labellum or Lip) differs from the others in form, and often bears a spur or prominence at the base beneath. Stamens 3, united with the style into a column, one or (in Cypripedium) two only bearing a 2-celled anther. Pollen- grains cohering in 2, 4, or 8 waxy or powdery masses (Pollinia). Cap- sule with three parietal placentae, splitting at the sides into three valves. Seeds very numerous, minute, covered with a loose membranaceous testa. Albumen none. — Plants mostly smooth and more or less succulent. Leaves almost always alternate, sheathing and entire. Stems leafy or scape-like. Flowers bracted, solitary, spiked, or racemed, and remark- able for their various and singular forms. Synopsis. I. Anther solitary, fixed to the apex of the column like a lid, deciduous. TRIBE I. MAL AXIDE^E. — Pollen in smooth -waxy masses, without stalks or connect- ing tissue. — Roots tuberous. * Stems leafy. 1. MICROSTYLIS. Lip cordate or sagittate. Column minute, 2-toothed at the apex. 2. LIPARIS. Lip entire. Column elongated, incurred, margined at the apex. ORCHIDACEJE. (ORCHIS FAMILY.) 453 * * Stems sheathed. 3. CORALLORHIZA. Spur of the lip short and adnate to the ovary. Root branching, toothed. 4. APLECTRDM. Lip spurless. Root of two solid connected tubers, bearing a single leaf. TRIBE II. EPIDE1VDRE.3E. — Pollen in smooth waxy masses connected by elastic tissue. 5. EPIDENDRUM. Pollen-masses 4. Claw of the spurless lip adnate to the column. 6. TIPULARIA. Pollen-masses 4. Lip free, spurred. Stem sheathed. 7. BLETIA. Pollen-masses 8. Lip free, hooded, spurless. TRIBE in. ARETHUSEJE. — Pollen in loose powdery masses. Lip crested. 8. CALOPOGON. Pollen-masses 2, bipartible. Column incurved, winged at the apex. 9. POQONIA. Pollen-masses 2. Column wingless, club-shaped. 10. ARETUUSA. Pollen-masses 4. Column petal-like. Root a solid tuber. II. Anther solitary, adnate to the column, erect, persistent. TRIBE IV. OPHRYDEJE. — Anther adnate to the apex of the column, the cells sep- arate. Pollen cohering in numberless waxy grains, which are collected by elastic tissue into a large mass, and attached to a gland of the stigma by an elastic stalk. Lip spurred. 11. ORCHIS. Anther-cells contiguous, parallel. Glands of the stigma covered with a common hood-like fold of the stigma. 12. GYMNADENIA. Anther-cells contiguous, parallel. Glands of the stigma naked. 13. PLATANTIIEIIA. Anther-cells diverging from the base. Glands of the stigma naked. 14. HABENARIA. Anther-cells diverging. Glands naked. Throat of the stigma furnished with variously shaped appendages. TRIBE V. NEOTTIE^J. —Anther attached to the back of the column, parallel with the stigma ; the cells approximate. Pollen powdery. * Pollen-masses 2. 15 SPIRANTHES. Lip nearly entire, clasping the column, obtuse. 16. GOODYERA. Lip sessile, entire, contracted above the middle, slender-pointed. 17. LISTERA. Lip 2-cleft. Stem with a pair of ovate opposite leaves. * * Pollen-masses 4. 18. PONTHIEVA. Claws of the petals and lip adnate to the column. III. Anthers two, fixed beneath the lateral lobes of the column. TRIBE VI. C YPRIPEDIEJE. — Column appendaged by the petal-like sterile stamen. 19. CYPRIPEDIUM. Lip large, inflated. Leaves large, plaited. 1. MICROSTYLIS, Nutt. ADDER'S-MOUTH. Sepals oblong, spreading. Petals filiform. Lip cordate or sagittate, entire or nearly so, sessile. Column minute, 2-toothed at the apex. Anther lid-like. Pollen-masses 4, collateral, united by pairs at the apex. — Low herbs, from bulbous roots. Stem 1 - 2-leaved, sheathed below. Flowers racemed or spiked, minute, greenish. 1. M. ophioglossoides, Nutt. Leaf solitary near the middle of the 5-angled stem, ovate, clasping; raceme short, with the unexpanded flowers crowded in a globular head, elongated in fruit ; pedicels slender, much longer than the flowers ; lip auricled at the base, 3-toothed at the apex. (Malaxis ophi- oglossoides, MM.) — Low shady woods, Florida, and northward. July and Aug. — Stem 4' - 8' high. Leaf 1 ' - 2' long. Flowers ^" wide. 454 ORCHIDACE^:. (ORCHIS FAMILY.) 2. M. Floridana, n. sp. Leaves 2, near the base of the 3-angled stem, unequal, ovate, or elliptical, mostly acute, sheathing; raceme slender, acute, elongated in fruit, many-flowered ; pedicels longer than the flowers ; sepals ob- long, spreading, with the margins revolute ; petals filiform, reflexed, twisted ; lip round-auriculate-cordate, abruptly narrowed and entire at the apex, depressed at the sinus ; capsule oblong or obovate. — Wet shady woods, Apalachicola, Flor- ida. July and Aug. — Stem 6' -12' high. Leaves l'-4' long. Flowers 1" wide. 2. LIPARIS, Eichard. TWAYBLADE. Sepals spreading. Petals linear or filiform, spreading or reflexed. Lip entire, flat, often with two tubercles above the base. Column long, semi-terete, incurved, margined at the apex. Pollen-masses 4, collateral, united by pairs at the apex. — Low herbs, from bulbous roots. Leaves 2, sheathing the base of the scape-like stem. Flowers racemed, greenish or purplish. 1. L. liliifolia, Richard. Leaves elliptical, obtuse, sheathed at the base ; scape 3-angled, 10 - 20-flowered, longer than the leaves; sepals linear, whitish ; petals filiform, reflexed, yellowish ; lip large, wedge-obovate, concave, abruptly pointed, brownish-purple. (Malaxis liliifolia, Sivartz.) — Low shady woods and banks in the upper districts, Georgia, and northward. June and July. — Scape 5; - 10' high. Leaves 2' - 4' long. Lip £' long. 3. CORALLORHIZA, Haller. COBAL-ROOT. Sepals and petals alike, oblong or lanceolate, connivent Lip clasping the base of the straight 2-edged column, spreading and concave above, 2-ridged near the base, spurless, or with the spur adnate to the ovary. Anther lid-like. Pol- len-masses 4, incumbent. — Low dull-colored leafless herbs, with coral-like roots, sheathed stems, and racemose flowers. 1. C. odontorhiza, Nutt. Root pinnately branched and toothed ; stem tumid at the base, slender above ; sheaths 3, elongated ; racemes 10 - 15-flowered ; sepals and the rather shorter spotted petals erect, lanceolate, obtuse ; lip entire, longer than the sepals, distinctly clawed, the spreading limb oval, concave, 3-nerved, with two tooth-like ridges in the throat, white spotted with purple ; the margins crenulate below the middle and involute above ; margins of the col- umn thickened and incurved at the base; capsule oval, nodding. — Shady woods, Florida, and northward. Feb. and March. — Stem 8' - 16' high. Lip 4" long. 2. C. micrantha, n. sp. Root toothed ; stem low, rigid ; sheaths 2, abruptly pointed; raceme 6- 12-flowered ; flowers very small (1''-!^" long), erect ; sepals and petals nearly equal, linear, erect ; lip short-clawed, entire, oval, concave, denticulate on the margins, without teeth or ridges, shorter than the sepals, white spotted with purple ; capsule obovate, nodding. — Shady woods, Florida and Georgia. Aug. and Sept. — Stem 3' - 6' high. 3. C. innata, R. Brown. Root branching; stem slender; sheaths 3; the upper one elongated and often leaf-like at the apex; raceme 5- 12-flowered; lip ORCHIDACE^E. (ORCHIS FAMILY.) 455 somewhat hastate, 3-lobed above the base, with two distinct ridges on the face, white spotted with crimson ; sepals and petals oblong-lanceolate, brownish ; cap- sule oval or elliptical. — Damp shady woods, Georgia, and northward. Sept. and Oct. — A vernal species in the Northern States. 4. APLECTRUM, Nutt. PUTTY-ROOT. Sepals and petals alike, linear-oblong, erect. Lip spurless, short-clawed, 3-lobcd and 3-ridged at the throat. Column straightish, cylindrical. Anther lid-like, slightly lateral. Pollen-masses 4. — Root tuberous, proliferous, very glutinous within, first bearing a single large plaited and petioled leaf, which is persistent through the winter, and afterward a 3-sheathed scape, with a raceme of yellowish flowers at the summit. 1. A. kiemale, Nutt. (Corallorhiza hiemalis, Ell. Limodorum trifidum, Michx.) — Rich woods, chiefly in the upper districts, and northward. April and May. — Leaf oval, many-nerved, 4'— 6' long. Scape 1 2' - 1 5' high, 10-1 5-flow- ered. Sepals and petals yellowish, tipped with brownish purple. Lip whitish, spotted, the middle lobe rounded and crenulate on the margins. Capsule re- flexed. 5. EPIDENDRUM, L. TREE-ORCHIS. Sepals and petals nearly equal and alike, widely spreading. Lip with the claw wholly or partly adnate to the elongated margined or winged column, en- tire or parted, mostly rigid or tubercled on the face. Spur none, or adnate to the ovary. Column prolonged at the apex into a toothed or fimbriate cup. Anther lid-like, somewhat 4-celled. Pollen-masses 4, lenticular, stalked. — Stemless herbs, from a tuberous or creeping rhizoma, clinging to the bark of trees by thick and matted roots. Leaves sheathing, rigid, perennial. Scape sheathed or bracted, bearing a raceme of greenish and purplish flowers. 1. E. COnopseum, Ait. Scape few - many-flowered ; leaves 1 - 3, coria- ceous, lanceolate, acute, spreading ; bracts subulate, the lowest somewhat leafy ; sepals spatulate, obtuse, with revolute margins ; petals linear-spatulate, obtuse ; lip 2-tubercled at the base, 3-lobed, the lateral lobes rounded and crenulate, the middle one notched at the apex, the claw wholly adnate to the slightly margined column. — On various trees, but chiefly on Magnolias, Florida to South Caro- lina. Aug.— Scape 2' -8' high. Leaves 1'- 3' long. Flowers 4" - 5" long, green tinged with purple. 2. E. venosum, Lindl. Scape tumid at the base, 5 - 7-flowered ; leaves 2, linear-lanceolate, abruptly pointed ; bracts short, ovate ; sepals and petals spatulate-lanceolate, acute ; lip 3-parted, 2-crested in the middle ; the lateral lobes oblong, acute; the middle one wedge-shaped, notched at the apex, the claw partly adnate to the 2-winged column. — South Florida, Dr. Blodgett. — Scape 1° high, invested with numerous short whitish sheaths. Leaves 4' -5' long. Flowers 8" long. 456 ORCHID ACEJ2. (ORCHIS FAMILY.) 6. TIPULABIA, Nutt. Sepals and petals oblong, spreading. Lip long-spurred, 3-lobed, the lateral lobes short and triangular, the middle lobe linear. Spur filiform, ascending. Column slender, wingless. Anther lid-like. Pollen-masses 4, stalked, waxy. — Root tuberous, proliferous, first producing a single ovate leaf, on a sheathed petiole, afterward a slender sheathed scape, ending in a long raceme of numer- ous greenish flowers. 1 • T. discolor, Nutt. — Shady banks, Florida, and northward. Aug. — Scape about 1° high. Leaf 1'- 2' long, acute, somewhat plaited and many- nerved, purple beneath. Flowers small, nodding, bractless. Spur about 1' long. 7. BLETIA, Ruiz and Pavon. Sepals and petals alike and nearly equal, spreading. Lip spurless, jointed, 3-lobed, crested on the face. Column free, elongated, semi-terete. Anther lid-like, fleshy. Pollen-masses 8, by pairs, with a stalk to each pair, waxy, becoming powdery. — Scape from tuberous rootstocks, sheathed or scaly, many- flowered. Leaves sheathing the base of the scape, narrow, plaited, sometimes wanting. Flowers spicate or racemose, mostly showy. 1. B. aphylla, Nutt. Leafless; scape stout, terete, tapering into the many-flowered spike; sheaths several, short, the upper ones passing into the ovate acuminate bracts; flowers spreading, brownish, striped with purple; sepals and petals oblong-lanceolate, oblique ; lip concave, emarginate, with a 6-ridged crest along the middle, the lateral lobes erect. — Rich shaded soil, Florida to North Carolina, and westward. July and Aug. — Root consisting of horizontal, jointed tubers. Scape 1°- 1 J° high. Perianth |' long. 2. B. verecunda, Swartz. Scape leafy at the base, many-flowered ; leaves lanceolate, plaited, strongly nerved ; petals and sepals greenish, the former con- nivent ; lip saccate, wavy and furrowed, emarginate. — Open pine( barrens, Middle and East Florida. July. — Scape 1° - 1 J.° high. Leaves 6' - 9' long. 8. CALOPOGON, R. Brown. Sepals unequal, the two lateral ones broader and oblique. Lip (by the untwisted ovary) brought to the upper or inner side of the flower, dilated at the apex, bearded on the face, and narrowed into a hinge-like claw. Column long, incurved, winged at the apex. Anther terminal, lid-like, sessile. Pollen- masses 2, powdery. — Scape erect from a solid tuber, sheathed at the base, bearing below the middle a single narrow sheathing leaf, and terminated with a loose spike of showy flowers. 1. C. pulchellus, R. Br. Scape 2-8-flowered; leaf linear-lanceolate, erect, keeled, many-nerved ; flowers large, mostly approximate, bright purple ; lateral sepals obliquely ovate, abruptly pointed, shorter than the lanceolate obtuse petals ; lip broadly obcordate, acutely 2-eared at the base ; filaments of the crest decurrent on the claw, the lower ones purple and united ; ovary ORCHIDACE^E. (ORCHIS FAMILY.) 457 straight, 2-3 times as long as the lanceolate-subulate bracts. — Swamps, Florida, and northward. June. — Scape l£°-2° high. Leaves 6' -12' long. Flowers I'-l^' wide. 2. C. pallidus, n. sp. Scape 10-20-flowered; leaf linear, erect, keeled, few-nerved ; flowers scattered, white tinged with purple ; lateral sepals obliquely oblong, shorter than the linear-lanceolate acute petals ; lip wedge-obovate, abruptly short-pointed, obtusely 2-earcd at the base ; filaments of the ' crest mostly united and purple at the base; ovary, straight, scarcely longer than the subulate bract. — Wet pine barrens, "West Florida, near the coast, to North Carolina. May. — Scape 1°- l£° high. Leaves 6' -9' long. Flowers 9" -12" wide. 3. C. parviflorus, Lindl. Scape 3 - 6-flowered ; leaf linear, concave, appressed to the scape; flowers approximate, bright purple; lateral sepals oblong, curved, acute, longer than the oblong-lanceolate, obtuse petals ; lip wcdge-obovate, emarginate, winged at the base ; filaments of the crest all yellow and distinct; ovary curved, four times as long as the ovate-acuminate bract. (C. pulchellus, var. graminifolius, Ell.) — Wet pine barrens, Florida to North Carolina. March and April. — Scape 6'- 12' high. Leaves 3'- 5' long. Flow- ers 8" -10" wide. 4. C. multiflorus, Lindl. Scape 7 - 14-flowered ; leaves mostly two, linear, rigid, concave, erect ; flowers approximate, deep purple ; lip wedge- shaped, pointed, winged at the base, bearded in the middle with uniform, filiform hairs ; sepals and petals ovate, acute. — South Florida. — Plant 1° high. Leaves 3' - 5' long. Flowers of the size of the preceding. 9. POGONIA, Juss. Sepals and petals alike, or the former narrower and elongated. Lip mostly crested and 3-lobed. Column club-shaped, wingless. Anther lid-like, stalked. Pollen-masses 2, powdery. — Stems erect from thick fibrous or tuberous roots, sheathed at the base, few-leaved, 1- or few-flowered. Leaves alternate or whorled. Flowers nodding, showy. * Sepals and petals nearly alike, erect. 1. P. ophioglossoides, Nutt. Root fibrous; leaves 2, sessile, lanceo- late, the upper one terminal and smaller; flower mostly solitary, terminal, sessile, pale rose-color ; sepals lanceolate, as long as the oval or oblong petals ; lip spatulate, flat, yellow-crested, fimbriate on the margins, longer than the petals, and twice as long as the thick column. — Swamps, Florida, and north- ward. April and May. — Stem 6'- 12' high. Flowers \' long. 2. P. pendula, Lindl. Root tuberous; leaves several, short, alternate, ovate, clasping ; flowers 3-7, axillary, long-peduncled, drooping, whitish ; sepals and petals lanceolate, acute ; lip spatulate, somewhat 3-lobed, roughened but not crested, rather shorter than the petals, longer than the column. (Tri- phora pendula, Nutt.) — Rich shady woods, Middle Florida, and northward.* July and Aug. — Stem 4' - 8' high. Leaves 6" - 9" long. 39 458 ORCHIDACE.E. (ORCHIS FAMILY.) * Sepals (brown) linear, spreading, much longer than the erect petals : lip crested, 3-lobed. 3. P. divaricata, R. Br. Leaves 2, sessile, lanceolate, one near the middle of the stem, the other smaller and bract-like at the base of the solitary terminal flower; sepals purplish-brown, broadly linear, and, like the flesh- colored lanceolate petals, recurved at the apex ; lip half-cylindrical, wavy and crenulate on the margins, 3-lobed at the apex, greenish veined with purple; crest beardless. — Swamps, Florida to North Carolina. May. — Stem l°-2° high. Leaves 2'- 57 long. Sepals 1'- l£' long. 4. P. verticillata, Nutt. Leaves 5, obovate-oblong, abruptly pointed, whorled at the base of the solitary reddish-brown flower ; sepals linear, spread- ing, 3 times as long as the erect oblong yellowish petals, and yellowish 3-lobed wavy lip. — Low shady woods, Florida, and northward. May. — Stem 1° high. Leaves enlarged in fruit. Flower peduncled. Sepals 2' long. • 10. AKETHTJSA, Gronov. Sepals and petals alike and nearly equal, cohering at the base, arching and connivent over the column. Lip adnate to the base of the column, dilated and bent downward above the middle, crested within. Column incurved, expanded and petal-like at the apex. Anther terminal, lid-like, with the cells approxi- mate. Pollen-masses 4, powdery. — Scape erect from a solid globular tuber, sheathed, bearing a single large terminal flower. 1. A. bulbosa, L. — Bogs on the mountains of Carolina, Michaux, and northward. May. — Scape 6' - 9' high. Sheaths 3-4, the uppermost enclosing a linear late-developed leaf. Flower l'-2' long, 2-bracted, bright purple and fragrant. 11. ORCHIS, L. ORCHIS. Sepals and petals nearly equal, arching and connivent over the column, or the lateral sepals spreading. Lip adnate to the base of the column, depending, spurred at the base. Anther terminal, erect, the cells contiguous and parallel. Pollen-masses 2, waxy, stalked, and, with the two distinct glands, enclosed in a common sac or fold of the stigma. — Stem mostly scape-like, leafy at the base. Flowers showy, spiked. 1. O. spectabilis, L. Leaves 2, obovate-oblong, about as long as the 3 - 5-flowered 5-angled scape ; bracts lanceolate, leafy, mostly longer than the flowers ; sepals and petals connivent, oblong, purple ; lip white, obovate, entire, crenulate, as long as the club-shaped spur. — Rich shady woods in the upper districts, and northward. May. — Eoot of thick clustered fibres. Scape 4' - 6' high. Flowers 6" - 8" long. 12. GYMNADEWTA, R. Brown. " Sepals and petals nearly equal, the lateral sepals spreading, the upper, with the rather shorter petals, arching and connivent over the short column. Lip ORCHIDACEJS. (ORCHIS FAMILY.) 459 adnate to the base of the column, spurred at the base. Anther erect, the cells contiguous and parallel. Pollen-masses waxy, fixed by a stalk to the naked glands of the stigma. — Stems leafy. Flowers small, spiked. * Ovary twisted; the lip therefore anterior. 1. G. flava, Lindt. Stem slender (1° high); lowest leaf (4' -6' long) lanceolate, sheathing, the others (6-8) small, the uppermost passing into the subulate bracts of the short (l'-2' long) oblong densely many-flowered spike; flowers orange-yellow ; lip ovate, slightly crenate ; spur filiform, depending, shorter than the ovary. (Orchis flava, Nutt., not of Linn.} — Open grassy swamps in the pine barrens, Florida, and northward. July and Aug. 2. G. tridentata, Lindl. Stem (9' -12' high) scape-like above; lowest leaf (4' -6' long) lanceolate-oblong, tapering into a sheathing base, obtuse, the others small, scattered, passing into the bracts; spike (l'-2' long) loosely 4- 12-flowered ; flowers yellowish-green ; lip truncate, 3-toothed at the apex, longer than the petals ; spur slender, club-shaped at the apex, curving upward, longer than the ovary. (Orchis clavellata, Michx.) — Low shady woods in the upper districts, Mississippi to North Carolina, and northward. July. * * Ovary straight : Up posterior. 3. G. nivea, Gray&Engelm. Stem slender (l°-l£° high); leaves nu- merous, one or two of the lower ones linear (4' -8' long), the others small and bract-like; spike (2' -4' long) cylindrical, loosely many-flowered ; flowers white; lateral sepals ovate, slightly eared at the base ; petals and entire lip linear-oblong ; spur filiform, ascending, as long as the white roughish ovary. (Orchis nivea, Nutt.) — Pine-barren swamps, Florida, Georgia, and westward. July. 13. PLATANTHERA, Richard. • Sepals and petals nearly equal, the lateral sepals mostly spreading or reflexed. Lip entire or variously lobed or divided, spurred at the base. Column short. Anther-cells diverging. Stigma without appendages, with the glands naked. — Root composed of thick fleshy fibres. Stems mostly leafy. Flowers spiked or racemed, commonly showy. * Lip entire, neither toothed nor fringed. 1 . P. orbiculata, Lindl. Leaves two, at the base of the scape-like bracted stem, large, orbicular, fleshy, spreading on the ground, silvery beneath ; flowers greenish-white, in a narrow and loose raceme, longer than the bracts ; lateral sepals obliquely ovate, spreading, the upper orbicular ; petals narrower ; lip linear-spatulate, entire, recurved ; spur very long, club-shaped, curved. — Shady woods on the mountains of North Carolina, and northward. July and Aug. — Scape 1° - 1£° high. Leaves 5' - 8' in diameter. * * Lip 3-toothed or 3-lobed : flowers spiked: stem leafy. 2. P. flava, Gray. Leaves 3 -4 ; the two lower ones lanceolate or oblong- lanceolate (4'- 8' long), the others small and bract-like ; flowers small, brownish green, in a loose and slender many-flowered spike ; sepals and petals oval ; lip oblong, hastate -3-lobed, the lateral lobes short and rounded, the middle one 460 ORCHIDACEJE. (ORCHIS FAMILY.) crenulate at the apex and bearing a tooth-like appendage at the throat ; spur club-shaped, mostly shorter than the short ovary. (Orchis flava, L. 0. fuces- cens, and O. bidentata, Ell.) — Low shady banks, Florida, and northward. July and Aug. — Stem 1° high. Flowers 2" in diameter. 3. P. bracteata, Torr. Lower leaves obovate, the others smaller, lanceo- late ; flowers small, greenish ; sepals and narrow petals erect ; lip oblong-linear, slightly 3-toothed at the tip, longer than the obtuse sac-like spur. (Orchis viridis, Pursh.) — High mountains of Carolina, Pursh. — Stem low. Bracts large, conspicuous. * * * Lip undivided, fringed: flowers spiked : stems leafy. 4. P. ciliaris, Lindl. Leaves numerous, the lower ones (4' -12' long) lanceolate or oblong, the upper small and bract-like : spikes oval or oblong, rather loosely flowered; flowers large, bright yellow; lateral sepals round- obovate, reflexed ; petals lanceolate, incised or slightly fringed at the apex ; lip clawed, roundish in outline, long-fringed ; spur filiform, commonly longer than the long tapering ovary. (Orchis ciliaris, L.) — Var. BLEPHARIGLOTTIS (Or- chis blephariglottis, Wittd.) has white flowers, and shorter fringe of the lip. — Swamps and bogs, chiefly in the pine barrens, Florida, and northward. Aug. — Stem l£° - 2° high. Spike l£' -2' in diameter. Ovary 9" - 15" long. Flow- ers 6" -8" wide. 5. P. cristata, Lindl. Leaves numerous, the lower ones (4' -8' long) lanceolate, the uppermost bract-like ; spike oblong or cylindrical, densely flow- ered ; flowers small, yellow ; lateral sepals rounded, spreading, concave ; petals oblong, incised at the apex ; lip sessile, ovate in outline, pinnatifid-fringed ; spur filiform, half as long as the tapering ovary. (Orchis cristata, Michx.) — Bogs and, swamps, Florida, and northward. Aug. — Stem l°-2° high. Spike 1' in diameter. Ovary 5" - 6" long. Flowers 2"- 3" wide. # # # # Lip 3-parted, fringed or denticulate : flowers in spiked racemes : stem leafy. •»— Flowers yellowish-white. 6. P. lacera, Gray. Stem slender; lower leaves oblong, the uppermost small, passing into the lanceolate bracts ; raceme oblong, loosely flowered ; pet- als oblong-linear, entire ; lip pendent, the wedge-shaped lobes deeply divided into few spreading capillary filaments; spur as long as the ovary. (Orchis la- cera, Michx.) — Swamps and low ground in the upper districts, and northward. July. — Stem 1° - 2° high. Lower leaves 3' - 6' long. Raceme 3' - 5' long. •«- +- Flowers purple : lip clawed. 7. P. psycodes, Gray. Stem stout ; lower leaves lanceolate or oblong, the upper small, passing into the linear-subulate bracts ; flowers pale purple, crowded in a dense oblong raceme ; lateral sepals roundish, obtuse ; petals obo- vate, minutely denticulate at the apex ; lip nearly twice as long as the sepals, spreading, the wedge-shaped lobes bordered with a short fringe. (Orchis psy- codes, L.) — Swamps and shaded banks, North Carolina, and northward. July. — Stem 2° high. Lower leaves 3' - 6' long. Flowers very numerous. Lip 2" -3" long. ORCHIDACE^E. (ORCHIS FAMILY.) 461 8. P. fimbriata, Lindl. Stem stout ; leaves oval or oblong, obtuse, a few of the upper ones small and lanceolate like the bracts ; raceme oblong, rather loosely flowered ; flowers large, pale purple ; lateral sepals ovate, acutish ; pet- als oblong, denticulate on the margins ; lip twice as long as the sepals, spread- ing, the broad wedge-shaped lobes long-fringed ; spur longer than the ovary. — Wet meadows, North Carolina, and northward. June. — Stern 2° - 3° high. Leaves 4'- G' long. Flowers not numerous on the raceme. Lip 6"- 9" long. 9. P. peramcena, Gray. Stem stout ; lower leaves oblong, obtuse, tho upper lanceolate like the bracts ; raceme oblong, rather loosely flowered ; flow- ers large, violet-purple ; lateral sepals broad-ovate ; petals round-obovatc, mi- nutely denticulate ; lip spreading, the wedge-shaped lobes finely toothed, entire, or the middle one 2-lobed ; spur longer than the ovary. (Orchis fissa, Pursh.) — Mountains of North Carolina, and northward. July. — Stem 2° -4° high. Lip 9" long. 14. HABENARIA, Willd. Sepals nearly equal, the lateral ones reflexed. Petals entire or 2-3-parted. Lip pendent, entire, or 2 - 3-parted, spurred. Anther-cells erect, separate, diverg- ing. Stigma bearing two various-shaped appendages. Glands naked. Pollen- masses 2, waxy, stalked. — Herbs with tuberous roots, leafy stems, and spiked flowers. 1. H. repens, Nutt. Root a creeping tuber ; stem erect or ascending, very leafy ; leaves lanceolate, acute or acuminate, 3-ribbed ; spike slender, many-flow- ered ; bracts lanceolate, the lower ones longer than the flowers ; lateral sepals oblong, acute, the upper one ovate, erect ; petals unequally 2-parted, the lower lobe capillary, longer than the linear upper one ; lip 3-parted, barely longer than the sepals, the lateral lobes capillary, the middle one filiform ; spur as long as the ovary ; appendages of the stigma tubercular. — Swamps and ditches in the lower districts, Florida to North Carolina, and westward. Aug. and Sept. — Stem 1°- 2° long. Leaves 6'- 12' long. Spikes ^°- 1° long. Flowers small, greenish. 2. H. Michauxii, Nutt. Root a globular watery tuber ; stem erect ; leaves oval or oblong, mostly acute, many-nerved, the upper smaller, and similar to the ovate-lanceolate clasping bracts; spike slender, loosely few-flowered; lateral sepals oblong-ovate, acute, the upper one ovate, erect ; petals unequally 2-parted, the lower lobe capillary and twice as long as the lanceolate upper one ; lip twice as long as the sepals, 3-parted, the capillary lateral lobes longer than the linear middle one ; spur twice as long as the ovary ; appendages of the stigma tuber- cular. — Dry sandy or gravelly soil, Florida, to South Carolina. August. — Stem G'- 18' high. Leaves 2' - 3' long. Spike 3' -5' long. Flowers white, twice as long as those of the preceding. 15. SPIBANTHES, Richard. TWISTED ORCHIS. Sepals and petals nearly equal ; the lateral sepals diverging, dilated at the base, the upper one connivent with the petals. Lip clawed, concave, furnished with two callosities near the base, clasping the short column below. Stigma ovate, 39* 462 ORCHIDACE^5. (ORCHIS FAMILY.) beaked. Anther attached to the back of the column. Pollen-masses 2, obovate, 2-cleft, fixed to a common gland of the stigma, powdery. — Root composed of few clustered tubers or fleshy fibres. Stem leafy at the base, sheathed above. Flowers small, white, in a regular 1 -sided or spirally twisted spike. * Flowers on all sides of ike untwisted spike. 1 . S. cernua, Richard. Stem smooth below, the upper portion and thick crowded spike pubescent ; lowest leaves long, linear-lanceolate, the others bract- like and sheathing ; bracts ovate-lanceolate, acuminate, longer than the capsule ; flowers recurved ; lip longer than the sepals, contracted above the middle, wavy at the recurved obtuse apex, 2-toothed at the base. — Grassy swamps and mead- ows, Florida to Mississippi, and northward. October. — Stem 6'- 12' high. Leaves 4' - 8' long. Flowers yellowish-white, 3" - 4" long. * * Spikes twisted, bringing thejlowers into a single straight or spiral row. 2. S. brevifolia, n. sp. Stem pubescent above ; leaves all bract-like and sheathing, or the lowest expanding into a short (l'-2') lanceolate or linear early withering blade ; flowers all on one side of the rachis or sparingly spiral, hori- zontal, pubescent ; bracts ovate, acute, scarcely longer than the ovaiy ; sepals and petals equal j lip oblong or elliptical, very entire, wavy on the margins, re- curved at the acute or obtuse apex, and with two tooth-like prominences at the base. — Open grassy swamps in the pine barrens, Apalachicola, Florida. Oct. and Nov. — Root of 3 fleshy fibres. Stem 1° high. Flowers 10-20, 3" -4" long, white. 3. S. odorata, Nutt. Stem stout, leafy; lower leaves oblong-lanceolate, acute, the others diminishing upward and passing into the large lanceolate acu- minate bracts ; spike thick, pubescent, densely flowered, spiral ; bracts much longer than the ovary, the lower ones as long as the recurved flowers ; sepals and petals equal ; lip entire, recurved, oblong, dilated and crenulate at the apex, and with two tooth-like hooked prominences at the base. — Muddy banks of rivers, near Marianna, Florida to North Carolina, and westward. October. — Stem 1° - 2° high. Lowest leaves 9'- 15' long, l'-2' wide. Flowers yellow- ish-white, £' long, fragrant. 4. S. tortilis, Willd. Stem tall and slender, pubescent above ; lowest leaves linear, the upper small and bract-like ; spike slender, pubescent, spiral ; bracts ovate-lanceolate, acuminate, longer than the ovary; lip oblong, entire, recurved and crenulate at the apex, scarcely longer than the petals, with two gland-like prominences at the throat. — Low or marshy pine barrens, Florida to North Carolina. May.— Stem l°-2° high. Leaves 6' -10' long. Flowers 3" long, white. 5. S. gracilis, Bigelow. Stem very slender, smooth throughout, scape-like ; lowest leaves (early withering) lanceolate or elliptical, spreading; spike very slender; flowers minute, on one side of the rachis or sparingly spiral, smooth; bracts ovate-lanceolate, clasping, shorter than the capsule ; lip finely crenulate on the margins, recurved and acute at the apex, with two raised ear-like promi- nences at the base ; anthers 4-cleft. — Damp soil, Florida, and northward. April and May. — Stem sheathed, 6' - 12' high. Lowest leaves l'-2' long. Flowers 1" long. y ORCHIDACE^E. (ORCHIS FAMILY.) 4G3 16. GOODYERA, R. Brown. RATTLESNAKE PLANTAIN. Sepals and petals nearly equal, the two lateral sepals including the base of the sessile lip, the upper one connivent with the petals. Lip concave or sac-like, contracted above the middle into a recurved and channelled point. Anther at- tached to the dorsal apex of the short and free column. Pollen-masses 2, entire, powdery. — Stems leafy or scape-like, from a slender creeping rootstock, bearing a spike of small white flowers. * Stem scape-like, bracted: lip spurless: column manifest: anther round, beakless, radical leaves clustered. 1. G. pubescens, R. Brown. Scape pubescent ; radical leaves thick, ovate, discolored and reticulated above, contracted into a spreading petiole ; spike lan- ceolate, densely many-flowered, pubescent ; bracts lanceolate ; sepals and petals roundish ; lip sac-like, ending in a short, ovate point ; stigma rounded. — Deep shady woods, Florida, and northward. August. — Scape 1° high. Leaves 2' long. Spike 2' - 4' long. 2. G. repens, R. Brown. Low ; scape slender, pubescent ; radical leaves ovate or oblong-ovate, reticulated ; spike slender, loosely few-flowered, 1 -sided or somewhat spiral; bracts linear-lanceolate; lip sac-like, ending in an oblong point ; stigma 2-toothed. — Shady woods, on the mountains of North Carolina, and northward. August. — Scape 5' — 8' high. Leaves 1' long. * * Stem leafy: lip spurred: column inconspicuous : anther ovate, beaked. 3. G. quercicola, Lindl. Stem ascending ; leaves thin, ovate or oblong- ovate, acute, on slender petioles, which are dilated, membranaceous, and sheath- ing at the base ; spike short, oblong, densely flowered ; bracts scarious, oblong- ovate, mostly shorter than the flowers ; sepals and petals oblong, obtuse ; lip concave, ending in a broadly-ovate acuminate and recurved point ; spur pouch- like, shorter than the ovary ; stigma 2-lobed. — Low shady woods, Florida, and westward. August. — Plant tender, 6'- 12' high. Leaves and spike 1' long. 17. LISTERA, R. Brown. Sepals and petals alike, spreading or reflexed. Lip longer than the sepals, 2-cleft. Column short. Stigma with a rounded beak. Anther ovate, attached to the dorsal summit of the column. Pollen-masses 2, powdery. — Stems low, from clustered fibres, bearing two opposite sessile leaves, and a loose raceme of small greenish flowers. 1. L. australis, Lindl. Leaves ovate or oblong-ovate, closely sessile; raceme smoothish, few - several-flowered ; bracts minute; lip linear, 3-4 times as long as the sepals, deeply 2-cleft, the divisions filiform ; column very short. — "Wet shady woods, Florida, and northward. July. — Stem 4' - 8' high. Leaves 2. L. COnvallarioides, Hook. Leaves broadly cordate or roundish; raceme pubescent, few-flowered ; bracts half as long as the pedicels ; lip oblong- obovate, 2-lobed at the apex, and 2-toothed at the base, twice as long as the se- 464 ORCHIDACE^E. (ORCHIS FAMILY.) pals ; column manifest. — Damp mossy woods, on the mountains of North Carolina. July. — Stem 4' - 8' high. Leaves £' - 1 ' long. 18. PONTHIEVA, R. Brown. Sepals and petals nearly alike, the two outer sepals spreading, the upper one connivent with the petals. Petals, like the lip, adnate to the middle of the col- umn. Lip posterior, clawed, ovate, concave, spreading. Column 2-lobed, beaked. Anther dorsal, linear, stalked, 4-celled. Pollen-masses 4, linear, pow- dery.— Low herbs, with clustered roots, chiefly broad radical leaves, and green- ish flowers on a pubescent scape. 1. P. glandulosa, R. Brown. Leaves many-nerved, oblong, spreading, nan-owed into a short petiole ; scape slender, many-flowered ; bracts lanceolate ; lateral sepals flat. ( Cranichis multiflora, Nutt. Ophrys pubera, Michx. ) — Low shady woods, Florida to North Carolina. Sept. and Oct. — Scape 1°- l£° high. 19. CYPRIPEDIUM, L. LADY'S SLIPPER. Sepals 3, the two lower ones mostly united into one under the lip, spreading. Petals narrower. Lip large, inflated, and sac-like. Column short, 3-lobed, the two lateral lobes each bearing a 2-celled anther on the under side, the middle one (sterile stamen) petal-like. Pollen granular. Stigma thick, triangular. — Root fibrous. Leaves large, plaited, sheathing. Flowers large, mostly solitary, leafy- bracted, nodding. * Stem leafy : sepals and petals longer than the yellow lip, the latter linear and twisted. 1. C. pubescens, Willd. Pubescent; stem sheathed at the base; leave's 4-6, ovate-oblong, acute or acuminate ; flowers 1 - 3 ; sepals greenish, striped with deeper lines, lanceolate, acuminate, the lower sometimes 2-cleft at the apex ; petals linear, spirally twisted; lip large (!'- 1^' long), laterally flattened, spotted within; stigma triangular, obtuse. — Rich woods in the upper districts, and northward. May and June. — Stem 1° - l£° high. Leaves 4' - 6' long. Flow- ers inodorous. 2. C. parviflorum, Salisb. Very near the preceding, but every way smaller ; lip half as large, depressed above ; stigma triangular, acute ; flowers fragrant. — Rich woods in the upper districts. May and June. * * Stem leafy: sepals and petals white, flat, obtuse, not longer than the lip. 3. C. spectabile, Swartz. Pubescent; leaves 6-7, oval, acute; sepals oval or oblong, rather longer than the lanceolate petals ; lip (1^' long) much inflated, white tinged with purple, about as long as the sepals. — Mountains of North Carolina, and northward. May and June. — Stem 2° high, commonly 2-flowered. Leaves 4' - 6' long. Flowers very showy. * * * Scape naked, l-fiowered, 2-leaved at the base. 4. C. acaule, Ait. Pubescent ; leaves oblong, obtuse ; sepals greenish, oblong-lanceolate, acute, nearly as long as the linear petals, much shorter than the large (2' long) obovate purple and veiny lip. — Dry woods in the upper dis- tricts, and northward. May and June. — Scape 8' - 12' high. Leaves ^° long. CANNACE^E. (CANNA FAMILY.) 465 ORDER 143. CANNACEJS. (CANNA FAMILY.; Perennial herbs, destitute of aroma, with alternate sheathing leaves, the very numerous nerves parallel, and diverging from the strong midrib, and superior irregular monandrous flowers. Sepals 3. Corolla 6-parted ; the three exterior divisions alike ; the three interior ones very unequal, and often variously imperfect. Stamen and stigma mostly petal-like. Anther 1-celled. Ovary 1 - 3-celled, with 1 - many anatropous or cam- pylotropous ovules. Embryo straight or hooked, in hard albumen. — Bhi- zoma often tuberous, and abounding in starch. 1. THALIA, L. Calyx minute. Corolla tubular ; the three exterior divisions similar and equal ; the interior unequal ; the anterior one broad and hooded, the interior lateral one elongated and clawed, the exterior lateral one furnished with two bristles on one side, and partly adnate to the slender stamen on the other. Style thick, spiral : stigma perforated, 2-lipped, the lower lip long and pendent. Capsule utricular, 1-celled, 1-seeded. Seed ovoid, erect, campylotropous. Embryo hooked, in hard albumen, — Stemless herbs from fibrous roots. Scape elongated. Petioles terete, dilated and sheathing at the base. Elowers in bracted panicled spikes, commonly two together, and included in a 2-valved spathe. 1. T. dealbata, Roscoe. Plant dusted over with a minute white powder, otherwise smooth ; leaves distichous, long-petioled, cordate-ovate, acute ; scape terete, reed-like; panicle erect, dense, smooth, the branches not longer than the lanceolate deciduous bracts at their base ; spikes erect ; valves of the spathe unequal, ovate, coriaceous ; flowers small, purple. — Ponds and marshes, South Carolina, and westward. June -Sept. — Scape 3° -5° high. Leaves 6' -9' long, on petioles 1° - 2° long. 2. T. divaricata, n. sp. Plant not powdery; leaves oblong-ovate, acute, rounded at the base, long-petioled ; panicle large, divaricate, the branches much longer than the linear deciduous bracts, hairy at the joints; spikes 6- 10-flow- ered, zigzag, pendulous ; valves of the spathe unequal, oblong, membranaceous, hairy ; flowers small, purple ; seed ovoid, enclosed in a loose membranaceous pericarp. — Ponds, Apalachicola, Florida. Sept. and Oct. — Scape 5° -10° high. Leaves l°-2° long. Panicle 2° -4° wide, purplish. 2. CANNA, L. INDIAN-SHOT. Sepals 3. Corolla 6-parted ; the three exterior divisions equal ; the interior bilabiate, with the upper lip 2 -3-parted, or sometimes wanting, the lower entire. Filaments petal-like. Anther marginal. Ovary 3-celled, many-ovuled. Style petal-like. Stigma marginal. Capsule covered with a dense bristly coat, 3-celled, loculicidally 3-valved. Placentae central. Seeds globose, anatropous. Embryo straight in horny albumen. — Stems leafy. Leaves narrowed into a sheathing petiole. Flowers spiked, showy. 466 AMARYLLIDACE.E. (AMARYLLIS FAMILY.) 1. C. flaccida, Roscoe. Stem stout, very leafy below ; leaves ovate-lance- olate, acuminate, narrowed into a long and sheathing petiole ; spike few-flowered ; sepals green, lanceolate, acute, half as long as the tube of the corolla ; corolla funnel-shaped ; the exterior divisions similar to the sepals, reflexed ; the three in- terior ones yellow, very thin, oblong-obovate ; two of them collateral and adnate below ; stamens petal-like, obovate, thickened below, very thin and expanding above, one of them bearing the linear anther on its margin, the other two larger and united into one ; style adnate to the tube of the corolla ; stigma thick, spat- ulate, embracing the anther in the bud ; capsule oval, 3-angled, few-seeded, mem- branaceous at maturity, and bursting irregularly at the sides ; seeds black, borne on a spongy cord. — Miry swamps, Florida to South Carolina, near the coast. June - Aug. — Stem 2° - 4° high. Leaves 9' - 1 5' long. Corolla 3' - 4' long. ORDER 144. AMARYLLIDACE^E. (AMARYLLIS FAMILY.) Chiefly stemless smooth and succulent herbs, with linear leaves, and smooth (not scurfy or woolly) often showy flowers. — Sepals and petals united to form a 6-parted corolla-like perianth, imbricated in the bud, the tube adnate to the 3-celled ovary. Stamens 6 : anthers introrse. Ovules anatropous, attached to the central placentas. Style single. Fruit 1-3- celled, valvular or indehiscent. Embryo straight in fleshy albumen, the radicle resting on the umbilicus. . Synopsis. * Root bulbous. 1. AMARYLLIS. Tube of the perianth short, crownless. Stigmas 3. 2. PANCRATIUM. Tube of the perianth elongated. Stamens connected with a cup-shaped crown. Stigma entire. 3. CRINUM. Tube of the perianth elongated, crownless. Stigma entire. * * Root tuberous. 4. AGAVE. Capsule 3-valved. Flowers spiked. Leaves thick and fleshy. 5. HYPOXYS. Capsule circumscissile. Flowers umbelled. Leaves grass-like. 1. AMARYLLIS, L. Perianth corolla-like, bell-shaped or funnel-shaped, 6-parted, spreading above, naked at the throat, the tube short or wanting. Stamens free • anthers versatile. Style elongated, declining: stigma 3-cleft. Capsule 3-valved, many-seeded. Seeds black, compressed or angled. — Scape erect from a coated bulb, ending in a 1 - 2-leaved or many-flowered spathe. 1. A. Atamasco, L. (ATAMASCO LILY.) Scape terete, somewhat lateral, 1 -flowered; leaves linear, concave, fleshy; spathe 1 -leaved, 2-cleft; perianth short-stalked, bell-shaped, white tinged with purple ; style longer than the sta- mens ; seeds angled. — Rich damp soil, Florida, and northward. March and April. — Scape 6' - 12' high, commonly shorter than the glossy leaves. Flower 2' -3' long. AMARYLLIDACE^E. (AMARYLLIS FAMILY.) 467 2. PANCRATIUM, L. Perianth corolla-like, 6-parted; the narrow divisions spreading; the tube slender and elongated. Stamens united below with a cup-shaped or funnel- shaped variously toothed crown, exserted : anthers versatile, linear. Style elon- gated, declining: stigma entire. Capsule membranaceous, 3-celled. Seeds often bulb-like. — Scape from a coated bulb, compressed or 2-edged, bearing the large and fragrant leafy-bracted flowers in a cluster at the apex. Leaves strap -shaped. § 1. PANCRATIUM. Tube of the perianth dilated and funnel-shaped at the apex: crown almost ivholly adnate to the tube, the border divided into six 2-cleft teeth, alter- nating with the stamens : capsule many-seeded, loculicidally 3-valved. 1. P. maritimum, L. Leaves glaucous, erect, longer than the slightly compressed many-flowered scape; divisions of the perianth linear-lanceolate, shorter than the slender (3' -4') tube, greenish without; stamens short. (P. Carolinianum, L.) — Salt marshes, South Florida to South Carolina. July -Sept. — Scape l°-l£°high. § 2. HYMENOCALLIS. Tube of the perianth straight, not dilated at the apex: crown free, funnel-shaped or saucer-shaped, the border irregularly toothed: capsule 1-3- seeded, bursting at the sides. 2. P. rotatum, Ker. Bulb bearing runners ; leaves flat above, concave toward the base ; scape 2-edged, 2 - 6-flowered, glaucous ; divisions of the peri- anth white, linear, spreading or recurved, longer than the green tube ; crown saucer-shaped or somewhat funnel-shaped, with the border irregularly toothed. (P. Mexicanum of authors.) — Low banks and swamps, Florida to North Caro- lina. April and May. — Scape and leaves 1° - 2° high. 3. P. coronarium, Leconte. Bulb without runners; leaves linear-strap- shaped, flat above, half-cylindrical near the base ; scape solitary, green, 2-edged, 4-flowered ; divisions of the perianth linear, spreading, white ; crown large, fun- nel-shaped, with six truncate lobes at the stamens, and several fine teeth at the sinuses. — Rocky islets in the Savannah River at Augusta, and in the Congaree at Columbia, Leconte. — Scape and leaves 2° long. 4. P. occidentale, Leconte. Bulb without runners; leaves linear-strap- shaped, obtuse, concave, and, like the 2-edged 6-flowered scape, glaucous ; divis- ions of the perianth white, linear, spreading and recurved at the apex ; crown funnel-shaped, with six toothed lobes alternating with the filaments; capsule many-seeded. — Upland meadows, in the western districts of Georgia, Leconte. — Stem and leaves 2° long. § 3. ISMENE. Tube of the perianth curved, dilated at the throat: crown nearly free, somewhat 12-toothed: capsule few-seeded. 5. P. nutans, Gwal. Leaves long, strap-shaped, sheathing; scape 3-4- flowered, solitary, 2-edged ; flowers nodding ; divisions of the perianth lanceolate- linear, white, longer than the green tube ; stamens incurved, scarcely longer than the crown. — South Carolina, Herbert. — Leaves 2° long. 468 AMARYLLIDACEJE. (AMARYLLIS FAMILY.) 3. CKINUM, L. Tube of the perianth crownless at the apex. Otherwise like Pancratium both in character and habit. 1. C. Americamim, L. Leaves strap-shaped, concave, obtuse, remotely denticulate, spreading ; scape compressed, with rounded edges, 2 - 4-flowered ; bracts lanceolate recurved ; ovaries sessile, with a linear bractlet at the base of each ; flowers large, fragrant ; leaves of the perianth white, lanceolate, shorter than the green tube ; filaments and style purple above ; stigma truncate, entire ; ovules 3 in each cell, erect ; capsule globose, membranaceous, indehiscent ; 1 - 6- seeded, pointed with the long persistent tube of the perianth ; seed large, conn- like; embryo oblong, in the axis of copious fleshy albumen; radicle inferior. — River-swamps, Florida, and westward. May - Sept. Scape 1° - 2° high. Peri- anth 6' - 8' long. 4. AGAVE, L. Perianth corolla-like, funnel-shaped, 6-parted, persistent. Stamens cxserted : anthers linear, versatile. Style filiform, exserted : stigma 3-angled or 3-lobed. Capsule coriaceous, 3-lobed, 3-celled, loculicidally 3-valved, many-seeded. Seeds flat, black and shining, attached to the central placentae. — Scape bracted. Leaves fleshy, spiny or cartilaginous on the margins. Flowers in simple or panicled spikes, bracted. 1. A. Virginica, L. Leaves lanceolate, thick and rigid, spine-pointed, denticulate on the margins; scape simple, smooth; flowers small, yellowish, scattered in a simple spike ; perianth strongly nerved; filaments and style spotted. — Sterile soil, Florida, and northward. July. — Scape 3° -5° high. Leaves 6' - 12' long. Capsule globose, 3-lobed. 5. HYPOXYS, L. STAR-GRASS. Perianth 6-parted, persistent, the spreading divisions colored within. Stamens short, unequal : anthers erect. Ovary 3-celled, with the numerous amphitropous ovules attached to the central placentae in two rows. Style short and thick : stigmas 3. Capsule top-shaped, many-seeded, opening transversely near the summit, the upper portion, with the withered perianth, falling off like a lid. Seeds globular, with a beak-like projection near the base. Radicle inferior. — Low pubescent herbs, from a tuberous root, with grass-like leaves, and a naked scape, bearing the few yellow flowers in a terminal bracted umbel. 1 • H. erecta, L. Hairy ; leaves linear, channelled ; scapes 1-4, filiform, 2 - 4-flowered ; bracts subulate, much shorter than the slender unequal pedicels ; divisions of the periantn oblong, greenish and hairy without, yellow within ; cap • sule 8-celled. — Varies, with the more rigid leaves nearly smooth, the 2-3-flow- ered scape flattened, and the bristle-like bracts longer than the nearly sessile almost woolly perianth. — Low ground, Florida, and northward. March and April. — Scapes 2' -9'. long. Leaves at length much longer than the scape. Flowers 8" wide. H^EMODORACE^E. (BLOODWORT FAMILY.) 469 2. H. juncea, Smith. Sparingly hairy ; leaves filiform ; scapes 1-3, fili- form, 1-2-flowered; bracts bristle-like, shorter than the villous pedicels; divis- ions of the perianth oblong, the three exterior ones greenish and hairy without ; partitions of the capsule vanishing at maturity ; seeds black, minutely pitted. (H. filifolia, Ell.) — Low pine barrens, Florida and the lower districts of Geor- gia, and westward. March and April. — Scape 4' -9' long, at length procum- bent. Flowers 9'' - 12" wide. ORDER 145. ELflEMODORACE^. (BLOODWORT FAMILY.) Perennial fibrous-rooted herbs, with leafy or scape-like stems, mostly equitant and sword-shaped leaves, and regular woolly or scurfy flowers. -T- Perianth tubular, 6-cleft, more or less cohering with the 3-celled ovary. Stamens 3 or 6 : anthers adnate, introrse, 2-celled. Ovules mostly few, anatropous or amphitropous, attached to the central placentas. Styles 3, united, deciduous, or persistent and separating : stigma entire. Capsule enclosed in the persistent perianth, loculicidally 3-valved at the apex. Embryo small, in hard albumen. Synopsis. 1. LACHNANTHES. Perianth woolly: stamens 3: style deciduous: flowers cymose: stem leafy. 2. LOPUIOLA. Perianth woolly : stamens 6 : style persistent : flowers corymbose : stem leafy. 3- ALETRIS. Perianth scurfy : stamens 6 : style persistent : flowers spiked : stem scape-like. 1. LACHNANTHES, Ell. /Perianth woolly without, 6-lobed ; with the exterior lobes smaller ; the tube ad- nate to the ovary. Stamens 3, slender, exserted, opposite the exterior lobes of the perianth : anthers linear. Style filiform, declined, deciduous : stigma entire. Capsule globose, 3-angled. Seeds amphitropous, few, thin, orbicular, concave, fixed by the middle to the thick globose placentae. — A leafy-stemmed plant, with orange-colored juice. 1. L. tinctoria, Ell. Root red, fibrous ; stem mostly simple, villous above ; leaves linear-sword-shaped, smooth, the lower ones crowded and equitant, the others smaller and remote ; flowers 2-ranked, crowded in lateral and terminal compound woolly cymes, yellow within ; exterior lobes of the perianth linear ; valves of the capsule separating from the placentas ; seeds black. — Ponds and ditches, Florida, and northward. July -Sept. — Stem 2° -3° high. Leaves 1°- l£° long. Flowers £' long. Bracts linear. 2. LOPHIOLA, Ker. Perianth woolly without, and at the throat within, nearly equally 6-lobed, spreading ; the tube adnate to the lower half of the ovary. Stamens 6, slender : 40 470 BROMELIACE.E. (PINE-APPLE FAMILY.) anthers oblong. Style subulate, erect, persistent and separable : stigma entire. Capsule ovate, coriaceous, 3-ribbed and 3-furrowed. Seeds anatropous, few, linear-oblong, curved, fixed at the base. , , 1. L. aurea, Ker. Stem erect, finely pubescent above, mostly simple; lowest leaves linear-sword-shaped, acute, equitant, the others diminishing up- ward, remote ; flowers small, yellow within, in close or open corymbose woolly racemes. (Conostylis Americana, Pursh.) — Wet pine barrens, Florida, and northward. July. — Stem 2° high, creeping at the base. Leaves 4' - 12' long. Flowers 3" long, nodding in the bud. 0 3. ALETEIS, L. STAR-GRASS. Perianth tubular, scurfy and viscid without, smooth within, 6-clcft, the tube adnate to the base of the ovary. Stamens 6, very short, included: anthers sagittate. Style subulate, erect, persistent, and separable : stigmas 3. Capsule ovate, coriaceous. Seeds ovate, ribbed, fixed at the base. — Perennial herbs, with slender scape-like linear-bracted stems, bearing at the base a cluster of flat sprea4ing leaves, and at the summit numerous small white or yellow flowers in a spiked raceme. ^ 1 . A. farinosa, L. Leaves lanceolate, very acute, sessile ; spike short (3' -12'), rigid; flowers approximate or crowded; perianth white or yellow, nearly sessile, cylindrical, with narrow and spreading lobes ; style slender, sub- ulate, 3-cleft ; capsule ovate-lanceolate, longer than the perianth. — Pine-barren swamps, Florida to North Carolina. May and June. — Scape 2° -3° high. Leaves 3' - 6' long. Perianth 4" long. t * 2. A. aurea, Walt. Leaves ovate-lanceolate, very acute, narrowed at the base; raceme elongated (1°- 2°), slender; flowers scattered; perianth white or yellow, short-stalked, globose-ovate, with broad and connivent lobes ; style short, somewhat conical, obscurely 3-cleft ; capsule ovate; as long as the perianth. — Low sandy soil, Florida to North Carolina. May and June. — Scape 2° -3° high. Leaves 2' - 4' long. Perianth 2" - 3" long. ORDER 146. BROMELIACE^E. (PINE-APPLE FAMILY.) Chiefly scurfy epiphytes, with fibrous roots, rigid leaves, and regular conspicuously bracted mostly spiked flowers. — Perianth free, or more or less adnate to the 3-celled ovary, 6-parted, imbricated, the three outer divisions calyx-like. Stamens 6 : anthers 2-celled, introrse. Ovules nu- merous, anatropous, erect or pendulous. Placentae central. Style single : stigmas 3. Fruit berry-like, or 3-celled, 3-valved capsule. Seeds stalked. Embryo small, at the base of copious mealy albumen. 1. TILLANDSIA, L. LONG Moss. AIR-PLANT. Sepals rigid. Petals imbricated and tube-like below, spreading above. Sta- mens filiform, hypogynous. Ovary free. Style slender. Capsule linear or BROMELIACE^E. (PINE-APPLE FAMILY.) 471 linear-oblong, cartilaginous, septicidally 3-valved, each valve separating into 2 plates. Seeds erect, club-shaped, pointed, raised on a long and hairy stalk. — Radical leaves mostly crowded, imbricated. Petals fugacious. * Stem rigid, erect : flowers spiked, blue. •*- Leaves broad at the base, gradually narrowed upward. 1. T. Utriculata, Leconte. Leaves scurfy and glaucous, subulate and recurved at the summit, very much dilated, concave and imbricated at the base, shorter than the rigid mostly branching stem ; the uppermost small and sheath- ing ; flowers scattered ; sepals oblong-linear, obtuse, longer than the oblong pu- bescent membranaceous bracts, much shorter than the capsule ; petals pale blue, twice as long as the sepals, slightly spreading at the apex ; stamens exserted. — South Florida. June and July. — Stem 2° -3° high. The dilated and imbri- cated bases of the leaves form a kind of cup which commonly contains a consid- erable quantity of water. 2. T. bracteata, n. sp. Leaves scurfy, concave, gradually narrowed up- ward, subulate and erect at the -apex, the uppermost reduced to ovate pointed bracts ; stem branched, longer than the leaves ; spikes compressed, 2-edged ; bracts ovate, coriaceous, smooth, closely imbricated in two rows, keeled, on the back, longer than the linear acute keeled sepals. — South Florida. — Stem 2° high. Leaves 1° - 1£° long. 3. T. bulbosa, Hook. Small, very scurfy ; leaves broad and clasping at the base, concave, imbricated, nearly equal, spreading above, shorter than the spike ; spike simple, few-flowered ; bracts oblong, scurfy, imbricated in two rows, longer than the sepals, and half as long as the capsule. — South Florida. — Stem stout, 4' high. Spike 3' - 4' long, 6 - 7-flowered. Leaves 3' - 4' long. Corolla purplish blue. -*- -i— Leaves linear or filiform, from an abruptly dilated base. 4. T. juncea, Leconte. Stem slender, leafy; leaves scurfy, linear, con- cave, recurved, longer than the stem, the lowest ones imbricated, the upper sheathing ; spikes branched, few-flowered ; bracts imbricated, smoothish, acute, longer than the sepals ; petals deep blue, three times as long as the sepals, re- curved at the apex. — South Florida. — Stem 1° high. Spikes 2' -4' long. Leaves 1°-1|° long. 5. T. Bartramii, Ell. Stem slender, leafy ; leaves smooth, erect, filiform, straight and rigid, as long as the stem, the upper ones short and sheathing ; spike branched, few-flowered ; bracts scurfy, imbricated, longer than the sepals, nearly as long as the capsule, the lower ones awned ; petals blue, spreading at the apex. — Southern districts of Georgia, Elliott, to South Florida. — Stem 1° high. Spikes 3' -4' long. Leaves bristle-like at the summit. 6. T. CSSSpitOSa, Leconte. Stems low, clustered ; leaves reddish, longer than the stem, scurfy, bristle-awl-shaped, erect, semi-terete, concave at the base, the upper ones scale-like ; spike 3 - 4-flowered ; bracts imbricated ; petals blue, longer than the bracts, recurved at the apex. (T. pinifolia, Leconte?) — East Florida, Leconte. — Plant reddish, 4' - 5' high, growing in large roundish clusters on the trunks of trees. 472 IRIDACE^E. (IRIS FAMILY.) 7. T. recurvata, Pursh. Leaves scurfy, bristle-awl-shaped, curved, nearly terete, shorter than the stem ; stem naked above, 1 - 2-flowered ; corolla longer than the calyx. — East Florida, Leconte. — Stem 6' high. Leaves ash-color, 2- ranked, narrowly channelled. * * Stems filiform, pendent: flowers solitary, green. 8. T. usneoides, L. (LONG Moss.) Scurfy and hoary; stems (1°- 2° long) branching ; leaves 2-ranked, linear-awl-shaped, recurved ; flowers sessile at the summit of the branches, small ; sepals longer than the bracts, half as long as the linear recurved green petals. — Humid situations in the lower districts, Florida to North Carolina, and westward. June - Sept. ORDER 147. IRIDACEJE. (!RIS FAMILY.) Herbs, with linear or sword-shaped equitant nerved leaves, and fuga- cious often showy flowers from a 2-leaved spathe. — Perianth 6-parted, the divisions spreading and equal, or the inner ones smaller, convolute in the bud. Stamens 3, distinct or united : anthers extrorse. Ovary adnate to the tube of the perianth, 3-celled ; the numerous anatropous ovules fixed to the central placentae. Style single : stigmas 3. Capsule loculi- cidally 3-valved. Embryo in the axis of fleshy albumen. Synopsis. 1. IRIS. Stigmas petal-like, covering the stamens : capsule angular. 2. SISYRINCHIUM. Stigmas filiform : capsule globular : stem flat. 3. NEMASTYLIS. Stigmas filiform, 2-parted : stem terete. 1. IRIS, L. BLUE FLAG. FLOWER-DE-LUCE. Perianth corolla-like, 6-parted, the exterior divisions recurved, and often crested or bearded within, the interior mostly smaller and erect. Stamens 3, opposite the outer divisions of the perianth, concealed by the dilated petal-like 2-lipped spreading stigmas. Style 3-angled. Capsule 3 - 6-angled. Seed nu- merous, flattened, packed in 2 rows in the cells. — Perennial herbs, with creep- ing or tuberous rootstocks, simple or branched stems, linear or sword-shaped leaves, and showy flowers from a scarious spathe. * Stems tall, leafy : divisions of the perianth unequal. 1. I. versicolor, L. Stem nearly terete, simple or branched; leaves sword-shaped ; flowers terminal, single or spiked, crestless ; perianth pale blue, variegated with white, yellow, and purple, the inflated tube shorter than the obtusely 3-angled ovary ; stigmas 2-toothed at the base, with the lips entire, or slightly crenate ; capsule oblong, obtusely 3-angled. — "Wet places, Florida, and northward. April and May. — Stem l£°-2° high. Lowest leaves l£°-2° long, 1' - 1^' wide. Perianth 2' long. 2. I. hexagona, Walt. Stem terete, simple ; leaves linear-sword-shaped ; flowers axillary and terminal, solitary, crested ; perianth deep blue, variegated with white, yellow, and purple ; the cylindrical angular tube longer than the IRIDACE^E. (IRIS FAMILY.) 473 6-angled ovary ; stigmas much longer than the anthers, nearly as long as the interior perianth, the large lips cut-toothed ; capsule oblong-cylindrical, 6-angled. — Swamps, Florida to South Carolina, near the coast. April. — Stem 2° - 3° high. Lowest leaves 2° - 3° long. Flowers 4' long. 3. I. cuprea, Pursh. Stem simple, furrowed and 1-angled below; leaves linear-sword-shaped ; flowers axillary and terminal, single or by pairs, crestless, dull yellow ; tube of the perianth somewhat inflated, as long as the 6-angled ovary ; stigmas scarcely longer than the anthers, about half as long as the petals, the lips nearly entire ; capsule tumid, 6-angled. — Swamps in the lower districts of Georgia, Elliott, and westward. April and May. — Stem 3° high. Leaves 2° long. Flowers 2' long. , •., -; 4. I. tripetala, Walt. Stem terete, simple, or with peduncle-like branches; leaves rather short, sword-shaped, glaucous ; flowers terminal, solitary, crestless, blue, variegated with yellow and purple ; inner divisions of the perianth very short, wedge-shaped, abruptly pointed ; stigmas 2-toothed at the base, and with toothed lips ; ovary 3-angled, longer than the short terete tube of the perianth ; capsule oval, 3-angled. — Pine-barren swamps, Florida to North Carolina. June and July. — Stem 1°- 2° high. Leaves 1° long. Flowers 2' -3' long, some- times by pairs. Limb of the sepals roundish. 5. I. Virginica, L. Stem slender, simple ; leaves elongated, grass-like ; flowers 2-6, terminal, on a long and slender peduncle, crestless, blue and white ; ovary 3-angled, 2-furrowed on the sides, much longer than the very short tube of the perianth ; capsule 3-angled, acute at each end. — Swamps, North Caro- lina, Tennessee, and northward. June. — Stem and lower leaves 2° long. Flowers 1^' long. * * Stems low, with sheath-like leaves : divisions of the perianth nearly equal. 6. I. verna, L. Stem very short, concealed by the short spathe-like leaves, 1 -flowered ; proper leaves linear-sword-shaped, glaucous ; perianth pale blue, crestless, the divisions about as long as the filiform partly concealed tube ; capsule 3-angled. — Pine barrens of the middle districts, mostly in dry soil, Alabama to North Carolina. April- — Leaves 5' -8' long. Limb of the peri- anth I/long. 7. I. cristata, Ait. Stem 1-3-flowered; leaves lanceolate (3' -5' long); outer divisions of the perianth crested, much shorter than the filiform tube ; capsule acutely 3-angled ; otherwise like the preceding. — Mountains of North Carolina. May. 2. SISYBINCHIUM, L. BLUE-EYED GRASS. Perianth corolla-like, 6-parted, the divisions nearly equal, spreading. Stamens 3, monadelphous : anthers sagittate. Style short: stigmas 3, simple,. filiform and involute- Capsule and seeds roundish. — Grass-like herbs, with fibrous roots, and scape-like 2-edged stems. Flowers small, in an umbellate cluster, successively developed from a rigid 2-leaved spathe. 40* 474 DIOSCOREACEJS. (YAM FAMILY.) 1. S. Bermudiana, L. Leaves linear, erect ; stem simple or sparingly branched, naked or 1 - 2-leaved, more or less broadly 2-winged ; leaves of the spathe equal and shorter than the flowers, or the lower one much longer than the flowers ; perianth blue, yellow in the centre ; the divisions notched and bristle-awned at the apex. (S. mucronatum, Michx.} — Grassy meadows, or sometimes in dry soil, Florida, and northward. July and Aug. — Stem 6'- 18' high. Leaves mostly shorter than the stem. Flowers 4 - 6 in a spathe, £' wide, opening in the evening. 3. NEMASTYLIS, Nutt. Perianth 6-parted, the divisions nearly equal and spreading. Stamens 3, dis- tinct, with the subulate filaments much shorter than the elongated linear anthers. Style short, 3-lobed, with the lobes 2-parted, each division produced into filiform radiating stigmas. Capsule oblong, truncated. — Herbs with coated bulbous roots, linear plicate leaves, and very fugacious flowers from a 2-leaved spathe. 1. N. ccelestina, Nutt. Bulb small, roundish; radical leaves few, elon- gated, sheathing ; those of the stem diminishing upward, the uppermost bract- like ; flowers mostly solitary, terminal ; divisions of the perianth oblong-obovate ; capsule obtusely 3-angled ; seeds angular, brown. (Ixia ccelestina, Bartram.) — Pine barrens, Florida to South Carolina, and westward. May and June. — Stem l£° - 2° high. Flowers bright blue. ORDER 148. DIOSCOREACEvE. (YAM FAMILY.) Twining herbs, with tuberous roots, ribbed and reticulated leaves, and small regular dioecious flowers, in axillary spikes or panicles. — Perianth 6-parted, the tube (in the fertile flower) adherent to the 3-celled ovary. Stamens 6 : anthers 2-celled, introrse. Ovules anatropous, 1 - 2 in each cell. Styles 3, more or less united below. Fruit mostly capsular, 3-6- seeded. Embryo minute, in hard albumen, 1. DIOSCOREA, Plum. YAM. Tube of the perianth 3-winged. Stamens inserted at the base of the limb. Capsule 6-seeded, membranaceous, 3 winged, opening septicidally through the wings. Seeds flat, broadly winged. — Leaves petioled, mostly cordate andv entire. Petioles tumid at the base. 1. D. villosa, L. Stem smooth (10° -15° long); leaves alternate, oppo- site, or whorled, broadly cordate, acuminate, 7-9-nerved, smooth, or pubescent beneath, mostly longer than the slender petiole ; flowers very small, whitish ; the sterile ones in scattered clusters on the very slender branches of the axillary panicles ; the fertile in a simple spike ; stigmas notched at the apex ; capsule oval or obovate, strongly 3-winged, nodding. (D. quaternata, Walt.) — Margins of swamps, Florida, and northward. July. SMILACE^E. (SMILAX FAMILY.) 475 ORDER 149. SMILACE^E. (SMILAX FAMILY.) Herbs or climbing shrubs, not essentially distinct from the Lily Family, but with ribbed and veiny reticulated leaves, and separate styles or stig- mas. — Leaves not sheathing, often bearing tendrils. Fruit baccate. SUBORDER I. . EUSMILACEJE. (SMILAX FAMILY.) Flowers di- cecious, in axillary and umbel-like clusters. Anthers 1-celled. Stigmas 1-3, sessile or nearly so. Ovules 1 - 2 in each cell of the ovary, ortho- tropous, suspended. — Tendril-bearing vines. Flowers small. Leaves alternate. 1. SMILAX. Cells of the ovary l-oruled. Woody Tines. - 2. COPROSMANTHUS. Cells of the ovary 2-ovuled. Climbing herbs. SUBORDER II. TRILLIACE^E. (TRILLIUM FAMILY.) Flowers perfect, terminal. Anthers 2-celled. Styles or stigmas 3. Ovules sev- eral in each cell of the ovary, anatropous, horizontal. — Erect herbs. Leaves whorled. 3. TRILLIUM. Exterior leaves of the perianth calyx-like, persistent. Stem 1-flowered. Leaves 3 hi a whorl, terminal. 4. MEDEOLA. Leaves of the perianth alike, deciduous. Stem few-flowered. Leaves 3- 7 in a whorl, lateral and terminal. 1. SMILAX, Tourn. CHINA BRIER. Flowers dioecious. Perianth bell-shaped, 6-leaved, the leaves nearly equal and alike, deciduous. Stamens 6, inserted on the base of the perianth : anthers erect, 1-celled. Ovary free from the perianth, 1-3-celled, with a single orthotropous pendulous ovule in each cell. Stigmas 1-3 (mostly 3), sessile or nearly so, slender, spreading, or recurved. Berry 1 - 3-celled, 1 - 3-seeded. Seeds globu- lar or angled. Embryo minute, in horny albumen. — "Woody and commonly thorny or prickly vines, climbing by means of a pair of tendrils attached to the petioles. Leaves alternate, ribbed, and reticulate- veined, mostly smooth and shining. Flowers small, greenish, in stalked axillary clusters. * Peduncles longer than the petioles or pedicels. » •*- Peduncles flattened : berry black. 1. S. tamnoides, L. Stem scurfy when young, armed with stout subulate prickles ; branches mostly unarmed, compressed - 4-angled ; leaves deltoid-ovate, or hastate - 3-lobed, truncate or slightly cordate, rarely acute at the base, 5-7- ' ribbed, often discolored; the margins, ribs, and petiole smooth, or fringed with fine prickles ; peduncles about twice as long as the petioles ; stigmas 1-3, mostly solitary; berry commonly 1 -seeded. (S. Bona-Nox, hastata, hedersefolia, &c. of authors.) — Swamps and thickets, Florida, and northward. May. 2. S. Pseudo-China, L. Lower part of. the stem beset with numerous black needle-shaped prickles ; branches unarmed, slightly angled ; leaves ovate or round-ovate, often contracted in the middle, rounded or cordate at the base, 476 SMILACE^E. (SMILAX FAMILY.) abruptly pointed, more or less bristly-ciliate on the margins, 5-nerved •, peduncles three times as long as the petioles, many-flowered ; stigmas 3 ; berry 3-seeded. (S. panduratus, Pursh.) — "Woods and thickets, Florida, and northward. April and May. 3. S. glauca, Walt. Stem armed with few and scattered prickles, very slender; branches terete, unarmed; leaves ovate or oval, entire, obtuse, mu- cronate, rounded or slightly cordate at the base, white beneath, 3 - 5-ribbed, the margins entire ; peduncles very slender, 2-3 times as long as the petiole, few- flowered ; stigmas 3 ; berry 3-seeded, glaucous. (S. caduca, Willd.) — Shady margins of swamps, Florida, and northward. May. — Leaves 2' - 4' long. •*- -«— Peduncles terete : berry whitish. 4. S. pumila, Walt. Softly pubescent ; stem low (l°-3° high), terete, un- armed ; leaves ovate or oblong, cordate, mucronate, persistent, mostly discolored and at length smooth above, pale beneath, 5-ribbed ; peduncles about twice as long as the petioles, rigid, dense-flowered ; stigma single ; berry ovoid, whitish, 1-seeded. (S. pubera, Michx.) — Dry sandy soil, Florida to South Carolina, in the lower districts. October. — Rootstock creeping. Leaves 2' - 4' long. * * Peduncles not longer than the petioles. •*- Berries red. 5. S. Walter i, Pursh. Stem low, armed with a few scattered prickles near the base, otherwise unarmed ; branches obscurely 4-angled ; leaves deciduous, membranaceous, varying from oblong-lanceolate to oval, mucronate, acute, round- ed or rarely slightly cordate at the base, 5-ribbed ; peduncles flattened, as long as the petioles and pedicels ; perianth rather large (3" long), brownish ; stigmas 3 ; berry (acuminate, Walt.} globular, 3-seeded. (S. caduca, Ell.} — Pine-barren ponds and swamps, Florida to North Carolina. March and April. — Rhizoma creeping. Stem seldom more than 6° long. Leaves 2' -4' long. 6. S. lanceolata, L. Stem tall, mostly unarmed ; branches terete ; leaves evergreen, rather thin, varying from lanceolate to oblong-ovate, acute at each end, 5-ribbed, paler beneath ; peduncle terete, as long as the petiole, many-flowered ; stigmas 3 ; berry globular, 3-seeded. — Rich woods and margins of swamps, Florida to North Carolina. August. — Stem sometimes 20° - 30° long. Root- stock tuberous. Leaves 3' - 4' long. •»- •»- Berries black. 7. S. laurifolia, L. Stem stout, armed with strong prickles ; branchlets 1 -angled, unarmed; leaves evergreen, coriaceous, varying from ovate to lance- olate, obtuse, mucronate, 3-nerved ; peduncles shorter than the pedicels ; stigma solitary ; berry globular, 1-seeded. (S. alba, Ph. ?) — Swamps and margins of ponds, Florida to North Carolina. July and Aug. — Stem climbing high. Leaves 3' - 5' long. Berries maturing in the fall of the succeeding year, very abundant. 8. S. auriculata, Walt. Stem commonly low and straggling, slender, armed with short prickles ; branches flexuous, 4-angled ; leaves evergreen, rigid, small, strongly 3-ribbed, varying from lanceolate to ovate, entire or hastate - 3-lobed, acute at each end ; peduncles shorter than the pedicels, many-flowered ; stigmas SMILACE^E. (SMILAX FAMILY.) 477 2 - 3 ; berry small, globular 2 - 3-seeded. (S. ovata, Pursh ? Ell.} — Dry sand- ridges along the coast, Florida to North Carolina. May and June. — Stem trail- ing, or covering small bushes. Leaves 1' - 2' long, strongly reticulated. Flowers small, very fragrant. 9. S. rotundifolia, L. Stem climbing high, armed with scattered prickles ; branchlets 4-angled ; leaves thin, ovate or round-ovate, entire, abruptly pointed, mostly rounded or slightly cordate at the base ; peduncles few-flowered, rather longer than the pedicels, flattened; berry globular, 3-seeded, blue-black. (S. caduca, L. S. quadrangularis, Muhl.) — Swamps in the middle and upper dis- tricts, and northward. June. — Plant yellowish green. Leaves 2' -4' long. 2. COPROSMANTHTJS, Torr. Cells of the ovary 2-ovuled. — Stems herbaceous, unarmed. Peduncles and petioles elongated. Berry blue-black. Otherwise like Smilax. • 1. C. herbaceus, Kunth. Stem erect (l°-3° high), mostly simple, leafy above ; leaves few, oblong or oval, mucronate, pubescent, 5-nerved, the upper ones whorled, the lower bract-like; peduncles few (3' -4' long), below the leaves; berry 2 -3-seeded. (Smilax herbacea, L.) — Dry fertile soil, Florida to North Carolina. June. — Flowers fetid. 2. C. peduncular is, Kunth. Stems curving or climbing (3° -5° long), branched, leafy ; leaves alternate, round-cordate, acuminate, smooth ; peduncles numerous, axillary (4' -6' long) ; berry 6-seeded. (Smilax peduncularis, Muhl.) — Rich soil in the upper districts, and northward. June. — Flowers fetid. 3. C. tamnifolius, Kunth. Stems erect or climbing; leaves hastate, cordate, obtuse, mucronate, 5-nerved, smooth, the upper ones narrower ; pedun- cles longer than the petioles; berry 2 -3-seeded. ( Smilax tamnifolia, Michx.) — Pine barrens, South Carolina, and northward. July. 3. TRILLIUM, L. Flowers perfect. Perianth 6-leaved, the three exterior leaves calyx-like, per- sistent, the interior withering. Stamens 6, inserted at the base of the perianth. Filaments short : anthers adnate, linear, 2-celled. Ovary 6-ribbed, 3-celled, with numerous anatropous horizontal ovules in each cell. Styles or stigmas 3, slen- der, stigmatic within, recurved, persistent. Fruit a roundish 6-sided many- seeded purple berry. •— Low perennial herbs, with tuberous rootstocks, and simple stems, which are sheathed at the base, and terminated with a whorl of three broad leaves and a single sessile or peduncled showy flower. * Flower sessile, erect. 1. T. sessile, L. Rootstbck horizontal ; stems slender, commonly two or more in a cluster ; leaves sessile, broadly oval, widest in the middle, abruptly short-pointed, narrowed at the base, 3- 5-nerved, variegated above with paler and deeper green ; petals dark purple, lanceolate, erect, much longer than the lanceolate spreading sepals, — Rich shady woods, in the upper districts, and 478 SMILACE^E. (SMILAX FAMILY.) northward. March and April. — • Stems 6'- 12' high. Leaves 1'- 3' long. Pet- als 10" -15" long. 2. T. discolor, Wray ? Eootstock tuberous, vertical ; stem stout, solitary ; leaves sessile, varying from ovate-lanceolate to broadly ovate, tapering from near the base to the apex, 3 - 7 -nerved, variegated above with green and brown or dark purple ; petals erect, oblong, obtuse, narrowed below, dark purple varying into green, rather longer than the lanceolate, spreading sepals ; filaments very short, purple. — Rich woods, in the middle and lower districts, Florida to South Carolina. Feb. and March. — Stem 6' - 12' high. Leaves 3'- 5' long. Petals iy- 2' long. * * Flower on an erect or declining peduncle. 3. T. pusillum, Michx. Stem slender; leaves sessile, lanceolate or ob- long, obtuse, 3-nerved ; peduncle erect, shorter than the spreading flower ; petals lanceolate, pale flesh-color, acutish, one third longer than the lanceolate obtuse sepals ; filaments slender, as long as the anthers ; stigmas united below into a slender style, longer than the filaments. — Pine barrens in the low country of Carolina, Michaux. North Carolina, Curtis. — Stem 6' - 8' high. Leaves l£'- 2' long. Flower 8" - 10" long. 4. T. erectum, L. Stem solitary; leaves sessile, broadly rhomboidal, abruptly acuminate, acute at the base ; peduncles longer than the spreading flowers (l^'-3' long), at length declined; petals oval or oblong, obtuse or acutish, dark-purple, rather longer than the lanceolate-ovate acute sepals ; fila- ments shorter than the anthers, or the short and distinct stigmas. (T. rhomboi- deum, Michx.) — Varies with smaller white or yellowish flowers. — Shady woods, on the mountains of North Carolina, and northward. May. — Stem 1° high. Leaves 3;- 5' long, and of the same width. Flowers 1'- l£' long, fetid. 5. T. grandiflorum, Salisb. Stem solitary ; leaves rhombic-ovate, abruptly acuminate, nearly sessile ; peduncle longer than the erect-spreading flower, erect or slightly declined; petals obovate, white, much longer and broader than the lanceolate acutish sepals ; filaments slender, shorter than the anthers, nearly equalling the short recurved stigmas. — Shady woods on the mountains of Carolina, Elliott, and northward. May. — Stem 1°-1|° high. Leaves 3' - 5' long. Petals 2' long, changing to rose-color. 6. T. erythrocarpum, Michx. Stem solitary; leaves ovate, long- acuminate, rounded at the base, short-petioled ; peduncle (l'-2; long) erect, longer than the widely-spreading flower; petals oblong, acutish, wavy, much longer than the lanceolate sepals, white, striped with purple at the base ; stigmas slender, longer than the anthers; berry red. — Rich shady woods in the upper districts, Georgia, and northward. April and May. — Stem 1° high. Leaves 3' - 5' long. Flowers 9 " - 1 2" long. * * * Flower on a recurved peduncle. 7. T. cernuum, L. Stems 2-3 together; leaves broadly rhomboidal, abruptly acuminate, short-petioled; peduncle mostly shorter than the small flower ; petals white, oblong-ovate, acute, wavy, recurved, rather longer than ROXBURGHIACEJE. (ROXBURGHIA FAMILY.) 479 the lanceolate sepals ; stigmas short, distinct, exceeding the short erect anthers. — Shady woods in the upper districts, Georgia, and northward. April and May. — Stem 1°- l£° high. Leaves 2'- 6' long, and nearly as broad. Petals 8" -12" long. 8. T. stylosum, Nutt. Stem solitary, slender ; leaves oval or oblong, acute, short-petioled ; peduncle shorter than the large flower ; petals rose-color, oblong, obtuse or abruptly pointed, wavy, spreading, much longer and broader than the lanceolate sepals; stigmas slender, united below the middle, much shorter than the long recurved anthers. (T. nervosum, and T. Catesbsei, Ell.) — Low shady woods in the upper districts, Georgia to North Carolina. April and May. — Stem 1° - l£° high. Leaves 4' long. Petals l£' - 2' long. 4. MEDEOLA, Gronov. Flowers perfect. Leaves of the perianth 6, similar, deciduous. Stamens 6, erect, hypogynous : anthers linear-oblong, fixed near the base, introrse. Ovary globose, 3-celled, with six anatropous ovules in each cell. Styles 3, slender, recurved, stigmatic within. Berry globose. 1 M. Virginia a, L. Rhizoma horizontal, tuberous ; stem simple, slen- der, clothed with loose deciduous wool, bracted below, bearing above the middle a whorl of 6 - 8 oblong-lanceolate acute leaves, and at the summit a smaller whorl of 3-4 ovate leaves, which surround the 2-8 small greenish nodding flowers ; styles red. — Shady banks, Middle Florida, and northward. June. — Stem 2° high. ORDER 150. ROXBTJRGHIACE.E. (ROXBURGHIA FAMILY.) Herbs or twining shrubs, with petioled parallel-nerved reticulated leaves, and perfect axillary racemose flowers. — Perianth 4-leaved or 4-parted. Stamens 4, hypogynous: anthers 2-celled, introrse. Ovary free, or united with the base of the perianth, 1-celled. Stigma sessile. Ovules few or numerous, anatropous. Placenta parietal. Capsule 2-valved. Seeds fixed to hairy or fibrillous cords, erect or pendulous. Embryo minute or slender, in fleshy albumen. 1. CROOMIA, Torr. Perianth deeply 4-parted, persistent, the spreading nerveless oval divisions imbricated in the bud. Filaments separate, thick, erect, inserted on the base of the perianth opposite its lobes : anthers short, oblique, with the connective mi- nute or wanting. Ovary globose-ovate, sessile. Stigma 2-lobed. Ovules 4-6. Fruit follicular, beak -pointed, at length 2-valved. Seeds 1-4, obovate, sus- pended from the apex of the nerve-like, at length free placenta, nearly covered by the fibres of the cord. Embryo minute, obovate. — A low perennial herb, 480 LILTACE^. (LILY FAMILY.) from a slender creeping rhizoma. Stem simple, sheathed at the base, leafy at the summit. Leaves 4-6, alternate, oblong-cordate, 5-9-ribbed. Peduncles few-flowered. Flowers small, greenish, on jointed nodding pedicels, which are thickened upward. 1. C. pauciflora, Torr. — Shady woods, Florida, Georgia, and Alabama. April. — Stem 6' - 12' high. Leaves 2' - 4' long, thin, spreading. ORDER 151. LJUACEJE. (LILY FAMILY.) Chiefly herbs, with sessile or sheathing parallel-nerved leaves, and per- fect flowers. — Perianth corolla-like, 6- (rarely 4-) leaved or lobed, free from the 2- 3-celled ovary. Stamens 6 (rarely 4), hypogynous or perigy- nous : anthers introrse (except in No. 9). Styles united. Stigmas 3, distinct or united. Fruit a capsule or berry, few - many-seeded. Seeds anatropous or amphitropous. Embryo small, in fleshy or hard albumen. Synopsis. TEIBE I. A SPAR AGE JE. Fruit a berry. Divisions of the perianth more or less united (except No. 4). — Leaves broad. 1. POLYGONATUM. Flowers axillary. Perianth tubular. Stems leafy. 2. SMILAC1NA. Flowers in a terminal raceme. Perianth spreading. Stems leafy. 3. CONVALLARIA. Flowers racemed. Perianth 6- lobed. Scape naked. 4. CLINTONIA. Flowers umbelled. Perianth 6-leaved. Scape naked. TRIBE II. ASFHODELE^. Fruit a capsule. Divisions of the perianth united at the base. — Stems scape-like. Leaves linear, rarely lanceolate. # Root a coated bulb. 5. ALLITJM. Flowers umbelled, from a scarious spathe. Seeds smooth and black. & NOLINA. Flowers racemed, white. Stigmas 3. Seeds roughened, brown. * * Root a tuberous rhizoma. 7. SCHCENOLIRION. Flowers racemed, white. Seeds smooth and black. Leaves equitant. TEIBE III. TUIjIPACE.S2. Fruit a capsule. Divisions of the perianth distinct, de- ciduous. — Stems leafy. * Bulbous-rooted herbs. Seeds pale. 8. -ERYTHRONIUM. Seeds ovoid, with a membranaceous appendage at the apex. Stem 2 -leaved. 9. LILIUM. Seed flat, winged, not appendaged. Stem many-leaved. * * Palm-like arborescent plants. Seeds black. 10. YUCCA. Stigmas 3, nearly sessile. Capsule dry or pulpy. Leaves spiny-pointed. 1. POLYGONATITM, Desf. Perianth tubular, 6-cleft. Stamens 6, inserted on the middle of the tube, in- cluded : anthers sagittate, fixed at the base. Ovary 3-celled, with 3-6 6vules in each cell. Style slender: stigma obtuse. Berry few-seeded. — Khizoma creeping. Stem simple, leafy. Leaves oval or oblong. Peduncles axillary, 1 - few-flowered. Flowers drooping, on bractless pedicels. (LILY FAMILY.) 481 1. P. biflorum, Ell. Stem terete or furrowed, smooth, curving above; leaves 2-rankcd, sessile or slightly clasping, oblong, 3-7-nervcd, smooth, or pubescent beneath ; peduncles much shorter than the leaves, 1 - 4-flowered ; flowers greenish ; filaments granular-roughened ; berry dark-blue. (P. pubes- cens, and P. multiflorum, Pursh.) — Shady banks, Florida, and northward. May. — Stem l°-2° high, naked below. Leaves 3' -4' long, acute or obtuse. Flowers 4" - 5" Ions. 2. SMILACIWA, Desf. SOLOMON'S SEAL. Perianth 4- or 6-parted, spreading, deciduous. Stamens 4 or 6, inserted on the base of the perianth : anthers ovate. Ovary 2 - 3-celled, with two ovules in each cell. Style short and thick : stigma obscurely 3-lobed. Berry globular, 1 - 2-seeded. — Stems simple, erect, leafy. Flowers small, white, in a terminal raceme or panicle. § 1. SMILACINA. Divisions of the perianth and stamens 6. Ovary 3-celled. 1. S. racemosa, Desf. Pubescent; rhizoma thick; stem flexuous, curv- ing and leafy above ; leaves numerous, 2-rankcd, oblong, acuminate, nearly sessile, strongly ribbed ; flowers numerous, in a close raceme or panicle ; berry red, spotted. — Rich soil in the upper districts, and northward. June and July. — Stem 1° - 2° high. Leaves 3' - 5' long. § 2. MAIANTHEMUM. Divisions of the perianth and stamens 4. Ovary 2-celled. 2. S. bifolia, Ker. Smooth; rhizoma slender; stem low, erect, 2-leaved above ; leaves ovate, cordate, sessile or clasping, finely nerved ; raceme simple, few-flowered ; berry red, spotted. — High mountains of North Carolina, and northward. June. — Stem 3' - 6' high. Leaves 1 ' - 2' long. 3. CONVALLARIA, L. LILY or THE VALLEY. Perianth bell-shaped, 6-cleft, deciduous. Stamens 6, inserted on the base of the perianth, included : anthers fixed at the base. Ovary 3-celled, tapering into the thick style. Ovules 4 - 6 in each cell. Stigma truncate. Berry globose, few-seeded. — A perennial stemless herb, with a creeping rhizoma, and white racemose flowers. 1. C. majalis, L. — High mountains of North Carolina. May. — Smooth. Rhizoma slender. Leaves two, oblong, their long petioles convolute, one within the other. Scape semi-terete, bearing a 1 -sided raceme of fragrant nodding flowers. Berry red. 4. CLINTONIA, Eaf. Perianth bell-shaped, 6-leaved, deciduous. Stamens 6, inserted oa the base of the perianth. Filaments filiform ; anthers linear-oblong. Ovary 2 - 3-celled, with two or more ovules in each cell. Style elongated : stigma obtuse. Berry 2 - many-seeded. — Stemless herbs, with creeping rootstocks, large radical sheath- 41 482 LILIACE^E. (LILY FAMILY.) ing leaves, and an umbel of white or greenish flowers terminating the naked scape. Berries blue. 1. C. umbellata, Torr. Leaves 2-4, oblong, ciliate on the keel and margins; scape pubescent ; umbel many-flowered ; flowers small (3" -4" long), white spotted with green or purple ; ovules 2 in each cell. (Smilacina urnbel- lata, Desf.) — Shady woods on the mountains, Georgia, and northward. June. — Scape 8' - 12' high, rather longer than the leaves. 2. C. borealis, Raf. Leaves obovate-oblong, ciliate on the margins, acute ; scape and 2 - 7-flowered umbel pubescent; flowers (6" -9" long) greenish yel- low ; ovules numerous. — Cold swamps on the high mountains of North Caro- lina, and northward. June. — Scape and leaves 8'- 10' high. 5. ALLIUM, L. OXION. Perianth 6-parted, spreading, persistent. Stamens 6, inserted on the base of the perianth. Filaments subulate, the interior ones more or less dilated at the base. Ovary 3-celled. Style filiform : stigma entire. Capsule loculicidally 3-valved. Seeds anatropous or campylotropous, single or few in each cell, angled, black. — Strong-scented stemless herbs, with bulbous roots, and a naked scape, ending in an umbel of small flowers, from a 2 - 3-leaved spathe. — Flow- ers sometimes changed into bulblets. * Ovules solitary in the cells. 1. A. tricoccum, Ait. Leaves lanceolate-oblong, acute, flat, long-taper- ing toward the base, early withering ; umbel small, dense, many-flowered, erect ; leaves of the perianth oblong, obtuse, longer than the stamens. — Mountains of North Carolina, and northward. July. — Bulbs clustered. Scape 1° high. Flowers white. * * Ovules 2 in each cell. 2. A. cernuum, Roth. Leaves linear, channelled; scape angled; umbel many-flowered, nodding ; leaves of the perianth acute ; stamens exserted ; ovary 6-toothed. — Mountains of South Carolina, and northward. July. — Scape l°-l£°high. Flowers rose-color, on slender pedicels. , • 3. A. Canadense, Kalm. Leaves narrowly linear, concave ; scape terete ; umbel erect, bearing a cluster of bulbets, intermingled with a few stalked rose- colored flowers ; spathe 1 - 2-le^ved ; leaves of the perianth obtuse, as long as the stamens ; ovary 6-toothed. — Banks of rivers, Florida, and northward. June. — Scape 1,° high. Outer coats of the bulb white and scarious. 4. A. mutabile, Michx. Leaves very narrow, concave; scape terete, umbel erect, many-flowered ; spathe 3-leaved ; leaves of the perianth acute, as long as the stamens, white changing to rose-color. — Dry sandy soil, Florida to North Carolina. May and June. — Scape 1° high. Outer coats uf the bulb composed of a network of fine fibres. * * * Ovules several in each cell. 5. A. striatum, Jacq. Leaves linear, concave; umbel erect, 3-10-flow- ered; spathe 2-leaved; perianth longer than the stamens, white, the exterior (LILY FAMILY.) 483 leaves green on the keel. — Low pine barrens, Florida to North Carolina. March and April. — Scape 6' - 12' high. Pedicels 1' - 2' long. Flowers 5" long. Leaves streaked on the back. 6. A. Carolinianum, Red. Scape naked ; leaves linear, even beneath ; spathe 2-leaved ; umbel fastigiate ; leaves of the perianth oblong, obtuse ; sta- mens subulate, twice as long as the perianth ; capsule many-seeded. — In Caro- lina. — Bulbs clustered. Flowers white, rose-color without. ( * ) 6. NOLINA, Michx. Perianth 6-parted, spreading, withering-persistent ; the divisions similar, oblong- lanceolate, 1-nerved. Stamens 6, inserted on the base of the perianth ; filaments subulate : anthers cordate. Style very short, persistent : stigmas 3, recurved. Ovary 3-angled, 3-celled, with two anatropous collateral ascending ovules in each cell Capsule mcmbranaceous, obovate, wing-angled, 3-valved, mostly 1-seeded. Seed oblong-obovate, dull brown and roughish, slightly incurved; longitudinally grooved on the inner face. Embryo slender, straight, shorter than the fleshy albumen. — Root large, bulbous. Leaves numerous, all radical, very long and narrow, recurved, keeled, rough on the margins. Scape branch- ing above. Flowers small, white, crowded in long bracted racemes. Pedicels jointed, reflexed in fruit. 1. N. Georgiana, Michx. — Dry sand-hills in the middle districts of Georgia and South Carolina. April and May. — Bulb very large, tunicated. Scape 2° -3° high, with a few scales near the base. Leaves l°-2° long, dry and harsh. 7. SCHCENOLIRION, Torn Perianth 6-parted, spreading, withering-persistent ; the divisions 3 - 5-nerved. Stamens 6, inserted on the base of the perianth : filaments subulate : anthers cor- date-sagittate, introrse. Style subulate, persistent: stigma minutely 3-lobed. Ovary globose, 3-celled, with two anatropous ascending ovules in each cell. Capsule coriaceous, broadly obovate, obtusely 3-lobed, loculicidally 3-valved, 1-6-seeded. Seeds globose or angular, smooth, black, and shining. Embryo, straight, as long as the fleshy albumen. — Perennial herbs. Root a tuberous rhizoma. Scape branching above. Radical leaves smooth, equitant, sheathing, linear, concave, rounded on the back, the others, small and bract-like. Flowers small, white, in loose bracted racemes. Pedicels spreading, jointed. 1. S. Michauxii, Torr. Pedicels 2 -4 times the length of the bracts; divis- ions of the perianth oblong, the nerves somewhat distant. (Phalangium croceum, Michx. Ornithogalum croceum, Ell.) — Swamps, chiefly in the pine barrens, Georgia, Florida, and westward. May and June. — Rhizoma cylindrical. Scape 2° high, slender. Leaves 1° long. 8. ERYTHRONIUM, I,. DOG'S-TOOTH VIOLET. Perianth corolla-like, with six spreading or recurved deciduous separate leaves; the three inner ones grooved and 2-toothed at the base. Stamens 6, 484 LILIACE^E. (LILY FAMILY.) slender : anthers oblong-linear, erect. Style slender : stigma 3-lobed. Capsule obovate, 3-angled, many-seeded. Seeds ovoid, with a loose membranaceous appendage at the apex, — Low herbs from a scaly bulb. Stems low, scape-like, bearing near the middle a pair of oblong spotted sheathing leaves, and at tho apex a single nodding flower. 1 . E. Americanum, Smith. Bulbs deep, the younger ones bearing only a single leaf; leaves lanceolate or oblong, tapering into the sheathing base, va- riegated with pale and deep green; flowers (!' long) yellow, spotted near the base; style club-shaped, 3-angled; stigma obscurely 3-lobed. — Rich woods, Middle Florida, and northward. Feb. and March. 9. LILIUM, L. LILT. Perianth corolla-like, 6-leaved, deciduous, the leaves spreading or recurved above, sessile or clawed, with a nectariferous groove near the base. Stamens 6, elongated; anthers linear, extrorse in the bud, versatile. Style filiform, elon- gated ; stigma 3-lobed. Capsule oblong, many-seeded. Seeds flat, membrana- ceous, horizontal, crowded in the cells. — Leafy herbs, from scaly bulbs. Leaves scattered or whorled, sessile. Flowers large, erect, or nodding. * Flowers erect: leaves of the perianth spreading, clawed. ' , 1. L. Philadelphicum, L. Leaves lanceolate, the upper ones whorled ; flowers 1-3, reddish-orange spotted with purple ; leaves of the perianth lanceo- late, abruptly pointed. — Mountains of North Carolina, and northward. July. — Stem 1 ° - 2° high. Flowers 2 ' long. 2. L. CatesbSBi, Walt. Leaves linear-lanceolate, all scattered and erect; flower solitary, terminal, scarlet, variegated with yellow and purple ; leaves of the perianth lanceolate, acuminate, with the margins of the claws involute ; the three inner ones broader and ribbed on the back ; capsule oblong, nearly terete. — Low pine barrens, Florida to North Carolina. Aug. and Sept. — Stem l°-2°high. Leaves 1'- 2' long, obscurely nerved. Flowers 3' - 4' long. * * Flowers nodding ; leaves of the perianth recurved, sessile. 3. L. Canadense, L. Stem commonly few-flowered; leaves in remote whorls, lanceolate, 3-nerved, hairy on the nerves beneath; flowers long-peduncled ; leaves of the perianth recurved, yellow spotted with purple. — Mountain-mead- ows, Georgia, and northward. June and July. — Stem 2° - 3° high. Leaves and flowers 2' - 3' long. 4. L. SUperbum, L. Stem commonly many-flowered; leaves smooth, lanceolate, 3-nerve« lanceolate, very rigid, strongly spine-pointed, very rough on the margins, the lower ones reflexed; panicle short, smooth, densely flowered, nearly sessile ; divis- ions of the perianth ovate-lanceolate, white tinged with purple. (Y. Draconis, L. Y. serrulata, Haw.) — Sands along the coast, Florida to North Carolina. May and June. — Stem 4° - 8° high. Leaves and panicle 1° - 1£° long. 4 Y. recurvifolia, Salisb. Leaves linear-lanceolate, recurved, with the margins sometimes filamentose ; interior leaves of the perianth wider than the exterior. — On the sea-coast of Georgia, Elliott. July and Aug. — Stem about 3° high. Flowers white, tinged occasionally with green and purple. ( *) ORDER 152. MELANTHACE^E. (COLCHICUM FAMILY.) Perennial herbs, with parallel-nerved leaves, and regular flowers. Perianth of 6 nearly equal divisions, free from or coherent with the base of the 3-celled ovary. Stamens 6 (in Pleea 9-12), inserted on the base of the perianth : anthers extrorse (except in Tofieldia and Pleea). Styles 41* 486 MELANTHACE^. (COLCHICUM FAMILY.) 3, distinct or more or less united. Fruit a capsule or berry. Seeds anatropous. Embryo minute, in copious albumen. Synopsis. SUBORDER I. UVULARIE^E. (THE BELL WORT FAMILY.) Peri- anth corolla-like, bell-shaped, the divisions distinct and deciduous. Styles partly or wholly united. Fruit a few-seeded capsule or berry. — Stems forking and leafy above, sheathed below. Leaves ovate or lanceolate, sessile or clasping. Flowers perfect, solitary, nodding. 1. IIVULARIA. Fruit a 3-lobed loculicidal capsule. Flowers on short lateral branches. 2. PROSARTES. Fruit a 3 - 6-seeded berry. Flowers terminal, on straight peduncles. 3. STREPTOPUS. Fruit a many-seeded berry. Flowers axillary, on bent peduncles. SUBORDER II. MELANTHIEzE. (THE COLCHICUM FAMILY.) Perianth spreading ; the divisions mostly distinct, often clawed, withering- persistent. Styles separate. Fruit a 3-celled capsule. — Stems leafy at the base, simple or branched. Flowers in racemes or panicles, sometimes polygamous or dioecious. * Anther-cells confluent. •i- Leaves of the perianth biglandular near the base. , 4. MELANTHIUM. Flowers polygamous. Filaments partly adhering to the claws of the perianth. 5. ZIGADENUS. Flowers perfect. Filaments free from the perianth. -i- -t- Leaves of the perianth glandless. 6. STENANTIIIUM. Leaves of the perianth lanceolate, acute, coherent with the base of the ovary, longer than the stamens. 7. VERATRUM. Leaves of the perianth oblong or obovate, free from the ovary, longer than the stamens and short styles. Flowers polygamous. 8. AMIANTHIUM. Leaves of the perianth obovate, free, shorter than the stamens and slender styles. Flowers perfect, racemed. 9. SCHGENOCAULON. Leaves of the perianth oblong, shorter than the stamens, much longer than the very short styles. Flowers perfect, spiked. * * Anther-cells distinct. +- Capsule loculicidal. 10. XEROPHYLLUM. Flowers perfect. Capsule 6-seeded. Radical leaves grass-like. 11. CHAMJELIRIUM. Flowers dioecious. Capsule many-seeded. Radical leaves obovate. t- +- Capsule septicidal. Leaves equitant. Anthers introrse. 12. PLEEA. Stamens 9-12. Anthers versatile. Bracts spathe-like. 13. TOFIELDIA. Stamens 6. Anthers erect. Bracts short. 1. UVULARIA, L. BELLWORT. Perianth bell-shaped, corolla-like, the divisions distinct, grooved at the base within, deciduous. Filaments short: anthers linear, adnate. Style deeply 3- cleft : stigmas spreading. Capsule 3-lobed or 3-angled, loculicidally 3-valved at the apex. Seeds few, obovoid, half encircled by the tumid raphe. — Low herbs, MELANTHACE^E. (COLCHICUM FAMILY.) 487 from a slender, creeping rhizoma. Leaves sessile or perfoliate. Flowers nod- ding, solitary, lateral or at the apex of a 1 -leaved branch, yellow. ^ * Leaves rounded at the base, perfoliate. 1. U. perfoliata, L. Leaves ovate or oblong, glaucous beneath, the sides < revolute when young ; leaves of the perianth lanceolate, acute, granular-rough- ened within, pale yellow ; capsule obovate, truncate. (U. flava, Smith.) — Woods and thickets, Florida, and northward. April. — Stem 8' -12' high. Leaves l^'-2^' long. Flowers 1' long. 2. U. grandiflora, Smith. Leaves oblong, pale or closely pubescent beneath, the young ones revolute on the margins ; leaves of the perianth linear- lanceolate, acute, smooth within, greenish yellow ; anthers obtuse ; capsule obovate. — Woods and thickets, in the upper districts of Georgia, and north- ward. April, — Larger than the preceding. Leaves 2' - 5' long. Flowers l£' long. * * Leaves narrowed at the base, sessile. 3. TJ. sessilifolia, L. Smooth ; leaves lanceolate-oblong, glaucous be- neath ; flowers on short naked peduncle-like branches, opposite the leaves ; leaves of the perianth lanceolate, obtuse, barely longer than the 3-cleft style ; anthers obtuse ; capsule obovate, stalked. — Rich soil in the middle and upper districts, and northward. April. — Stem 6' -12' high. Leaves I'-ljp long. Flowers 8" long. 4. U. Floridana, n. sp. Smooth ; leaves oblong, slightly clasping, glau- cous beneath ; flowers on a slender 1 -leaved branch ; leaves of the perianth linear-lanceolate, acuminate, twice as long as the 3-cleft style ; anthers pointed. — Low shady woods, Middle Florida, March. — Stem 4' -6' high. Leaves thin, 1' long. Flowers 8" long, pale yellow. 5. U. puberula, Michx. Slightly pubescent ; leaves green on both sides, oval, rounded at the base and somewhat clasping, rough on the margins ; style 3-parted nearly to the base, as long as the short-pointed anthers ; capsule ovate, sessile. — Mountains of North Carolina. — Flowers yellowish-white. 2. PROSARTES, Don. Perianth bell-shaped, corolla-like, the divisions distinct, deciduous. Filaments filiform, much longer than the linear-oblong obtuse anthers. Styles united: stigmas spreading. Berry ovoid, acute, 3-6-seeded. — A low forking herb. Peduncles terminal, not bent nor twisted. 1. P. lanuginosa, Don. (Streptopus lanuginosus, Michx.) — High moun- tains of North Carolina. June. — Leaves 2' -3' long, sessile, ovate-oblong, acu- minate, oblique or slightly cordate at the base, 5-nerved, pubescent. Peduncles -1-2, terminal, slender, pubescent. Leaves of the perianth J' long, lanceolate, acuminate, 3-nerved, greenish. Style smooth. Berry red. 3. STREPTOPUS, Michx. Perianth bell-shaped, corolla-like, with the divisions distinct, deciduous, the inner ones keeled. Anthers sagittate, fixed near the base, entire, or 2-pomted at 488 MELANTHACE^E. (COLCHICUM FAMILY.) the apex, longer than the filaments. Styles united: stigma 3-cleft or entire. Berry nearly globose, many-seeded. — Erect herbs, with spreading branches. Leaves clasping. Peduncles opposite the leaves, bent or twisted in the middle. 1. S. roseus, Michx. Stem much branched, with the branches flexuous and sprinkled with hairs ; leaves ovate, or the uppermost lanceolate, acuminate, slightly clasping, ciliate on the margins, 5 - 7-nerved ; flowers mostly solitary, small, rose-color, nodding ; anthers 2-pointed at the apex ; stigma 3-cleft. — Shady woods on the mountains of Georgia, and northward. May. — Stem 2° high. Leaves 2'- 4' long, green on both sides. Flowers 3" - 4" long. 4. MELANTHIUM, L. Flowers monoeciously polygamous. Divisions of the. perianth spreading, long-clawed, somewhat cordate or hastate and biglandular at the base ; the fila- ments partly adhering to their claws : anthers reniform, becoming peltate, the cells confluent. Styles 3, subulate. Capsule membranaceous, 3-lobed, the cells separating and opening down the inner suture, several-seeded. Seeds flat, winged. — Stems tumid at the base, rough-pubescent above. Leaves long, lin- ear. Flowers panicled, cream-color, turning brownish. 1. M. Virginicum, L. Stem tall, simple, the upper portion, like the loose panicle, pubescent and somewhat hoary ; lowest leaves long, broadly lin- ear and clasping, the upper small and sessile ; flowers shorter than the pedicels, the upper ones perfect ; leaves of the perianth oblong or roundish, often acute, the slender claw adnate to the lower half of the filaments ; glands conspicuous. (M. hybridum, Walt., the claws concave and adnate to the filaments below the middle ; glands connivent or obscure.) — Swamps, Florida, and northward. July and Aug. — Stem 3° - 4° high. Lowest leaves 1° - l£° long. 5. ZIGADENUS, Michx. Flowers perfect. Leaves of the perianth ovate or oblong, spreading, sessile or nearly so, 1 - 2-glandular at the base. Filaments free from the perianth, and of equal length : anthers broadly cordate, becoming peltate. Styles 3, slender, spreading. Capsule membranaceous, 3-angled, septicidal at the apex, many- seeded. Seeds oblong, wingless, or slightly margined. — Stems smooth and simple. Lowest leaves crowded, linear. Flowers white, in crowded panicles. 1. Z. glaberrimus, Michx. Stem rigid, leafy, lowest leaves broadly linear, elongated, glaucous beneath, the upper small and scattered ; panicle small, rigid ; bracts ovate ; leaves of the perianth oblong, short-clawed, often with a white callus on one or both sides at the base; glands prominent; stamens and styles subulate ; seeds oblong — Pine-barren swamps, Florida to North Carolina. June and July. — Stem 2° - 3° high. Lowest leaves l°-l£° long. Panicle 6' -12' long, commonly dense. Flowers 1' in diameter, as long as the pedicels. 2. Z. leimanthoides, Gray. Stem slender, somewhat naked above; leaves narrowly linear, green on both sides ; panicle slender ; bracts lanceolate ; leaves of the perianth oval or obovate, sessile, the glands obscure or wanting ; MELANTHACE^E. (COLCHICUM FAMILY.) 489 stamens and styles filiform ; seeds narrowly margined, winged at the apex. (Helonias graminea, Ell.) — Mountain swamps, Georgia, and northward. July and Aug. — Stem -2° -4° high. Lowest leaves l°-2° long. Panicle 8' - 12' long. Flowers 4" in diameter, much shorter than the slender pedicels. 6. STENA3STTHIUM, Gray. Flowers perfect or polygamous. Leaves of the perianth lanceolate, acuminate, united at the base, and adnate to the base of the ovary, longer than the stamens. Glands none. Anthers roundish, becoming peltate. Styles short, subulate : stigmas minute. Capsule ovate, membranaceous, septicidal at the apex, several- seeded. Seeds nearly wingless. — Stem smooth, slender, tumid at the base. Lowest leaves elongated, channelled. Flowers small, greenish-white, in a simple panicle. 1. S. angUStifolium, Gray. (Veratrum angustifolium, Pursh.) — Shady woods and banks, Florida, and northward. June and July. — Stem 2° - 3° high. Lowest leaves l°-2° long. Panicle l°-2°- Lower palea entire, awnless or (in No. 33) awn-pointed, •w- Glumes unlike, the lower one linear, the upper obovate. 26. EATONIA. Spikelets 1-5-flowercd. Culms slender, tufted. •H- ++ Glumes alike. Lower palea rounded on the back, not keeled. 27. MELICA. Spikelets 3 - 5-flowered. Lower palea many-nerved. 28. GLYCERIA. Spikelets 5 - many -flowered. Lower palea strongly 7-nerved. 29. ARUNDINARIA. Spikelets loosely many-flowered. Culms woody. 30. liitlZOPYRUM. Spikelets dioecious. Lower palea rigid. •H- -H- -H> Glumes alike. Lower palea keeled. 31. POA. Paleae falling away together, the lower one 6-nerved, and with cobwebby hairs at the base. Spikelets 3 - 6-flowered. 32. ERAGROSTIS. Lower palea falling before the upper one, 3-nerved, not hairy. 33. DACTYLIS. Lower palea awn-pointed. Panicle contracted, composed of 1-sided clusters. * * Grain adherent to the upper palea, downy at the apex. 34. FESTUCA. Lower palea entire, acute or awn-pointed. 35. BROMUS. Lower palea 2-cleft, awned between the teeth. * * * Grain free, smooth. Lowest flowers of the spikelet imperfect. 36. UNIOLA. Spikelets broad and flat, many-flowered. Paleae coriaceous. 37. PHRAGMITES. Spikelets 3 -6-flowered, silky bearded on the rachis. Paleee thin. TRIBE V. HORDE A C E ^E . — Spikelets 2 - several-flowered, sessile, on opposite sides of the jointed rachis, spiked. Glumes 1-2, rarely wanting. Paleae 2. 38. ELYMUS. Spikelets 2 - 4 at each joint of the rachis. Glumes 2, placed side by side before the spikelets. 39. GYMNOSTICHUM. Spikelets 2 - 3 at each joint of the rachis. Glumes none. 40. LOLIUM. Spikelet solitary at each joint of the rachis. Glume 1. TRIBE VI. AVENACEJE. — Spikelets panicled, 2 - several-flowered, the terminal flow- ers mostly imperfect. Rachis or base of the flowers often bearded. Lower palea with a twisted, bent, or straight awn on the back, or below the apex. 41. AIRA. Spikelets 2-flowered. Lower palea thin, rounded on the back, awned below the middle. 42. TRISETUM. Spikelets 2 - several-flowered. Lower palea thin, compressed-keeled, bear- ing a bent awn below the 2-cleft apex. 43. DANTIIONIA. Spikelets 2 - several-flowered. Lower palea rigid, many-nerved, bearing a flattened and twisted awn at the 2-cleft apex. 44. ARRIIENATHERUM. Spikelets 2-flowered, the lower flower staminate, and bearing a long bent awn below the middle. TRIBE VII. PII A L. ARIDE.3E. — Spikelets in spike-like panicles, 3-flowered, the upper or middle flower perfect, the two lateral ones imperfect or mere rudiments. Glumes 2. Palese 2, indurated in fruit. 45. ANTHOXANTHUM. Lateral flowers neutral, each of one awned palea. Perfect flower diandrous. 46. PUALARIS. Lateral flowers rudimentary. Perfect flower triandrous. TRIBE VIII. PANICE^E. — Spikelets 2-flowered. Glumes 2, or the lower wanting. Lower flower imperfect, either staminate or neutral, with the lower palea membrana- ceous and similar to the upper glume, the upper one mostly wanting. Palese of the perfect flower coriaceous. Grain mostly grooved or flattened on the outside. Flowers in spikes or panicles. * Lower glume and upper palea of the sterile flower wanting (the spikelet appearing like a single flower, with 2 glumes and 2 paleae). 47. PASPALUM. Spikelets alike, plano-convex, in 1-sided spikes. 548 GRAMINE^E. (GRASS FAMILY.) 48. A|fPHICARPTJM. Spikelets of two kinds ; one disposed in a terminal panicle, perfect but seldom fruiting ; the other fruitful, on long solitary radical peduncles. * * Glumes 2, the lower one often minute, rarely wanting. 49. PANICUM. Spikelets single, without a bristly or spiny involucre. 50. SETARIA. Spikelets crowded in spike-like panicles, subtended by a bristle-like involucre. 61. CENCHRUS. Spikelets single, or few in a cluster, enclosed in an indurated and spiny in- volucre. Spikelets spiked. 52. STENOTAPHRUM. Spikes and spikelets mostly as in Rottboellia, but the flowers as in Panicum. TRIBE IX. ROTTBOELiIjIACE^E. — Spikelets 1 - 2-flowered, by pairs, imbedded in an excavation of the thick and jointed rachis, one stalked and imperfect, the other sessile and perfect ; or the upper spikelets all staminate and the lower pistillate. Lower glume coriaceous or cartilaginous. Palese awnless. 53. ROTTBCELLIA. Spikelets 2 on each joint, one stalked and sterile, the other sessile and perfect. 54. MANISURIS. Spikelets 2 on each joint, the one at the top of the joint sterile, the other at the base globose and fertile. 55. TRIPSACUM. Tipper spikelets by pairs, all staminate ; the lower ones single, and pis- tillate. TRIBE X. AlVDROPOGONE^. — Spikelets 2 - 3 on each joint of the slender hairy or plumose rachis. Glumes more rigid than the thin-awned palese. 56. ANDROPOGON. Spikelets 2 on each joint of the plumose or hairy rachis, one sessile and perfect, the other stalked and imperfect or rudimentary. 57. ERIANTHUS. Spikelets 2 on each joint of the rachis, both fertile and surrounded by a hairy involucre. 58. SORGHUM. Spikelets panicled, 2-3 together, the lateral ones rudimentary. 1. LEEBSIA, Swartz. FALSE RICE. Perennial aquatic or marsh grasses, with the leaves and sheaths roughened with minute recurved points, the 1 -flowered (whitish) spikelets crowded in 1-sided panicled racemes. Pedicels jointed. Glumes none. Palese 2, charta- ceous, strongly compressed, fringed on the keel, the lower one much wider. Stamens 1 - 6. Stigmas 2. Grain compressed. 1. L. oryzoides, Swartz. Panicle large, diffuse; spikelets oblong, flat, loosely imbricated; stamens 3. — Ditches and swamps, Florida, and northward. July and Aug. — Culm 3° - 4° long, commonly prostrate at the base. Leaves spreading. Base of the panicle mostly enclosed in the sheath of the subtending leaf. Spikelets strongly fringed, about 3" long. 2. L. Virginica, Willd. Panicle nearly simple, the lower branches spread- ing ; spikelets small, concave, sparingly fringed, closely imbricated ; stamens 1-2. (L. imbricata, Lam. ?) — Swamps and margins of streams, Florida, and northward. July and Aug. — More slender than the last, and with spikelets half as large. 3. L. lenticularis, Michx. Panicle diffuse ; spikelets oval, flat, strongly fringed, closely imbricated ; stamens 2. — Ponds and swamps, Florida to North Carolina, and westward. Aug. — Culm 2° - 3° long. Leaves widely spread- ing, somewhat glaucous. Spikelets 3" long. GRAMINE^E. (GRASS FAMILY.) 549 4. L. hexandra, Swartz. Panicle contracted, erect, simple; spikelets lanceolate or oblong ; stamens 6. — In lakes and ponds, often in deep water, Florida, and westward. July and Aug. — Culms slender, l°-6° long, mostly branching. Leaves narrow, rather rigid. Panicle 2' - 3' long, exserted. Spike- lets short-fringed, 2" long, loosely imbricated. » 2. ZIZANIA, Gronov. WILD RICE. Rank water grasses, with broad flat leaves, and large diffuse panicles of mo- noecious 1 -flowered spikelets, on club-shaped jointed pedicels. Glumes none, or reduced to a cup-shaped ring at the base of the spikelet Paleas 2, membrana- ceous, the lower one rough-awned in the pistillate spikelet Stamens 6. Stig- mas elongated, brush-shaped. Grain cylindrical, free. 1. Z. aquatic a, L Lower portion of the panicle staminate and widely spreading, the upper pistillate and erect, with straight branches ; awn straight, elongated ; styles 2 ; grain linear. — Deep marshes and ponds, Florida, and northward. July. — Culms 4°- 8° high. Leaves rough beneath. Panicle 1°- 2° long. 2. Z. miliacea, Michx. Panicle diffuse ; staminate and pistillate spike- lets intermixed ; awns short ; styles united, elongated ; leaves smooth, with rough edges ; grain oval. — With the preceding. April and May. — Culms 4° - 6° high. Leaves somewhat glaucous. 3. HYDROCHLOA, Beauv. A small floating or creeping grass, with short oblong-linear flat leaves, and simple spikes of small monoecious 1 -flowered (white) spikelets, mostly included in the sheaths of the upper leaves. Spikelets 3-4 in a spike, the upper one staminate and exserted. Glumes none. Paleae 2, hyaline, the lower one emar- ginate, the upper acute. Stamens 6. Styles 2 : stigmas elongated. Grain ovoid, free. 1. H. Carolinensis, Beauv. (Zizania fluitans, Michx.) — Floating in still water or creeping on muddy banks, Florida to North Carolina. July and Aug. — Culm filiform, branching, £° - 2° long. Leaves 1; - 2' long. 4. ALOPECURUS, L. FOXTAIL GRASS. Flat-leaved grasses, with the 1 -flowered spikelets closely crowded in a simple spike-like cylindrical panicle. Glumes 2, compressed, boat-shaped, sharply keeled, united below, awnless. Lower palca compressed, awned on the back below the middle, the upper wanting. Stamens 3. Styles 2, rarely united be- low. Grain free, smooth and lenticular. 1..A. geniculatus, L. Low; culms ascending, bent at the lower joints; awn longer than the obtuse hairy glume. — Wet cultivated grounds, Florida and northward. April. — Culms 6' - 12' high. Leaves 2' - 4' long, with the sheaths shorter than the joints. Spikes !'-!£' long. 550 GRAMINE^E. (GRASS FAMILY.) The MEADOW FOXTAIL (A. pratensis, L.), a taller species (2°-3° high), with acute glumes, is scarcely spontaneous at the South. The same observation applies to the TIMOTHY or HERD'S-GRASS (Phleum pratense, L.), which differs from Alopecurus in having two paleae and awned glumes. 5. SPOROBOLUS, Brown. DROP-SEED GRASS. Tough wiry and tufted or creeping perennial grasses, with narrow leaves, and 1-flowered awnless spikelets, disposed in open, or crowded in spiked panicles. Glumes 2, membranaceous, unequal, the lower one shorter. Paleae 2. mostly longer than the glumes, and of the same texture. Stamens 3. Styles 2. Grain oval or globose, loose in the thin membranaceous pericarp, deciduous. Panicles exserted. * Panicles open. 1. S. junceus, Kunth. (WIRE-GRASS.) Panicle narrow, the short and spreading branches whorled ; spikelets on one side of the branches, short-stalked ; glumes smooth, the upper one acute, 2-3 times longer than the lower, and about equal to the obtuse paleae ; culms ("1° ~ 2° h'gn) erect ; leaves chiefly radical, fili- form and elongated, involute, those of the culm short and remote. (Agrostis juncea, Michx.) — Dry pine barrens, common. April and May, and often in October. 2. S. Floridanus, n. sp. Panicle diffuse, large; spikelets (purplish) on long hair-like stalks ; glumes acute, the lower one barely shorter than the obtuse paleae, the upper one a third longer ; leaves rather rigid, flat, pungent, very rough on the edges. — Low pine barrens, Middle and West Florida. September. — Culm 2° - 4° high. Leaves 1° - 2° long. Panicle 1° - 1£° long. * * Panicles spiked. 3. S. Indicus, Brown. Culms erect; panicle elongated, linear; leaves long, flat ; palese twice as long as the glumes, the upper one truncated. (Agrostis Indica, L.) — Waste places, Florida to North Carolina. May - Sept. — Culms 2° -3° high. Leaves with bristle-like summits. Panicle 6' -18' long, turning blackish. Spikelets crowded on the short appressed branches. 4. S. Virginicus, Kunth. Culms creeping, short-jointed, the short and mostly clustered branches erect; leaves 2-ranked, soon convolute, short and rigid ; panicle small, lanceolate ; glumes nearly equal, acute, rather longer than the palese. (Agrostis Virginica, L.) — Saline marshes and banks along the coast, Florida to North Carolina. July and Aug. — Flowering stems 6' -12' high. Leaves 2' - 4' long. Panicle 1'- 2' long, pale or purple. 6. VILPA, Adans. RUSH-GRASS. Panicles contracted or spiked, more or less included in the sheaths of the leaves. Grain oblong or linear, adherent to the closely investing pericarp. Otherwise as in Sporobolus. 1. V. aspera, Beauv. Perennial; culms tall and slender; leaves elon- gated, rough above, bristle-like at the summit; panicles partly included in the GRAMINE^E. (GRASS FAMILY.) 551 upper sheaths ; palese rough-hairy, unequal, awl-pointed, 2-3 times as long as the rough-keeled glumes and linear grain. (Agrostis aspera, Michx. A. clan- destina, Spreng.) — Dry sandy soil, Florida, and northward. July and Aug. — Culms 2° - 3° high. Sheaths hairy at the throat. 2. V. vaginsefiora, Torr. Annual; culms low, clustered, bearing con- cealed panicles at every joint, the terminal one partly exserted ; leaves short, smoothish ; paleae ovate, smooth, one third longer than the smooth glumes and oval grain. (Agrostis Virginica, Muhl. Crypsis Virginica, Nutt.) — Dry bar- ren soil, North Carolina, and northward. September. — Culms 6' -12' high. Leaves 2' - 4' long. • 7. AGROSTIS, L. BENT-GRASS. Tufted usually tender grasses, with flat and narrow leaves ; the small 1 -flowered spikclets racemose on the hair-like clustered branches of the open panicle, on thickened pedicels. Glumes 2, nearly equal, longer than the paleae. Paleae 2, the lower one commonly awned on the back, 3 - 5-nervcd, the upper 2-nerved, occasionally minute or wanting. Stamens 1-3. Styles or stigmas 2. Grain free. § 1. TRICHODIUM. Upper palea minute or wanting, the lower awnless, shorter than the unequal acute rough-keeled glumes. 1. A. elata, Trin. Culms stout, erect ; leaves flat (l"-2" wide) ; branches of the panicle flower-bearing above the middle. (A. dispar, Michx.?) — Swamps, North Carolina, Curtis. September. 1J. — Culms 2° -3° high. Panicles large and diffuse. 2. A. perennans, Gray. Culms slender, decumbent at the base ; leaves flat (I"- 2" wide); branches of the panicle short, flower-bearing from below the middle ; spikelcts whitish. (T. perennans, Ell.) — Swamps and river-banks, Florida, and northward. July and Aug. }J. — Culms l°-2° high. 3. A. SCabra, Willd. Culms slender, erect ; leaves short ; branches of the panicle long, hair-like, hispid, bearing the purple spikelets near their summits. (T. laxiflorum, Ell.) — Sterile soil, Florida, and northward. June and July. (£) — Panicle usually as long as the culm. § 2. AGROSTIS PROPER. Upper palea manifest : the lower commonly awned on the back. 4. A. alba, L. Culms ascending from a creeping base ; panicle spreading in flower, contracted in fruit; glumes (whitish) nearly equal, rough-keeled; pa- leae hairy at the base, the lower twice as long as the upper one, awnless or short- awned. — Damp soil, Florida, and northward. Introduced. — Culms l°-3° long. 5. A. rupestris, All. Culms slender, erect ; panicle small, oblong, with erect .smooth branches ; glumes lanceolate, nearly equal, rough-keeled ; lower palea one third shorter than the glumes, short-awned below the middle, the upper one minute. — High mountains of North Carolina, and northward. July. — Culms 1° high. GRAMINE^E. (GRASS FAMILY.) 6. A. arachnoides, Ell. Culms and leaves very slender; panicle con- tracted, weak and drooping ; glumes nearly equal, lanceolate, rough on the keel and margins; upper palea minute, the lower with two minute bristles at the truncated apex, and a long and very fine awn on the back above the middle. — Near Orangeburg, South Carolina, Elliott, and westward. April and May. Ij. — Culms 1° high. 8. POLYPOGON, Desf. BEARD-GRASS. Flat-leaved chiefly annual grasses, with the 1-flowered spikelets stalked, and crowded in. close clusters into a terminal spiked panicle. Glumes 2, equal, awned, and much longer than the palea?, of which the lower one is truncated and toothed at the apex, and often short-awned. Stamens 3. Stigmas 2. Grain elliptical, free. 1. P. maritimilS, Willd. Culms simple (6' -8' high); glumes pubescent, hispid on the keel, one third as long as the slender awns ; lower palea 4-toothed, unawned. (Phleum pratense, Ell., Herb.) — Sea-shore of North and South Carolina. Introduced. 9. CINNA, L. Tall perennial grasses, with broad leaves, bearing the 1-flowered compressed spikelets in a large compound terminal panicle. Glumes unequal, lanceolate, acute, the sharp keel hispid-serrulate. Palese 2, raised on a stalk, smooth, the lower one short-awned on the back below the apex. Stamen 1. Grain linear- oblong, free. 1. C. arundinacea, L. Culms (2° -7° high) simple; leaves linear- lanceolate (^' wide) ; branches of the panicle in fours or fives, erect in fruit; spikelets often purplish (2^" -3" long). — Shaded swamps, Georgia, and north- ward. — Panicle 6' - 1 5' long, rather dense. — Var. PENDULA, Gray. Cnlms and branches of the drooping panicle more slender ; pedicels very rough ; spikelets smaller ; glumes and paleae thinner. — Mountains of North Carolina, Curtis. 1O. MUHLENBERGIA, Schreb. DROP-SEED GRASS. Spikelets 1-flowered. Glumes persistent, pointed or awned, equal, or the lower one smaller. Paleae 2, sessile in the glumes, commonly hairy at the base, deciduous with the enclosed grain ; the lower one 3-nerved and mucronate or awned at the apex. Stamens 3. § 1 . MUHLENBERGIA PROPER. — Spikelets commonly much crowded, in lat- eral and terminal panicles, short-stalked: culms branching : leaves Jlat. 1. M. Mexicana, Trin. Panicles oblong, dense ; glumes unequal, lance- olate, ending in slender hispid awn-like points, the npper one as long as the awnless paleae. (Agrostis lateriflora, Michx.) — Damp soil, North Carolina, and northward. June and July. — Culms ascending, much branched. 2. M. Willdenovii, Triu. Culms sparingly branched, erect; panicles linear ; spikelets scattered ; palese twice as long as the nearly equal short-pointed GRAMINE^E. (GRASS FAMILY.) 553 glumes, the lower one with an awn 3-4 times as long as the spikclct. (Agros- tis tenuiflora, Willd.) — Dry rocky soil in the upper districts. July and Aug. — Culms 3° high. 3. M. diffusa, Schreb. Culms diffusely branched, low ; panicles long and slender ; glumes very small, the upper one truncated ; awn of the palca twice as long as the spikelct. — Shaded waste places, Florida, and northward. Aug. and Sept. — Culms 1° - 1£° high. § 2. TRICHOCHLOA. — Panicle terminal, diffuse: spikelets on long and hair- like stalks : culms tall and simple. 4. M. capillaris, Kunth. Leaves rigid, elongated, convolute; panicle erect, the long and purple glossy branches and spikelets drooping ; glumes nearly equal, half as long as the paleaa, the lower one awned ; palea? unequal, the up- per one barely awned, the lower 3-awned, with the middle awn many times longer than the spikelct. — Varies with both glumes long-awned. (M. filipes, Curtis.) — Sandy soil along the coast, and sparingly in the interior, Florida, and northward. Aug. and Sept. — Culms 2° -4° high. 5. M. trichopodes. Culms and leaves filiform, elongated ; panicle erect, oblong ; spikelets linear, on spreading stalks ; paleas twice as long as the nearly equal awnless glumes, ribbed ; the lower one tipped with a short awn, and with the two lateral nerves slightly percurrent, hairy at the base. (Agrostis tricho- podes, Ell. — Low pine barrens, Florida to North Carolina. Sept. ty — Culms 2° - 3° high. Panicle rarely purplish. Leaves flat. 11. BRACHYELYTRUM, Beauv. A perennial erect grass, with a simple slender culm, flat lanceolate leaves, and a loose lanceolate simple panicle of large (^' long) 1-flowcred spikelets. Lower glume obsolete, the upper minute, persistent and awnless. Palcas rigid, rough with short bristly hairs, the lower one concave, 5-ribbed, tapering into a long straight awn, and enclosing the shorter 2-pointed upper one. An awn-like pedicel of a second flower is applied to the back of the upper palea. Stamens and long stigmas 2. Grain linear. 1. B. aristatum, Beauv. (Muhlenbergia erecta, Schreb.) — Dry rocky places, Florida, and northward. July. — Culms solitary, 2° -3° high. 12. CALAMAGROSTTS, Adans. REED BENT-GRASS. Perennial grasses, with rigid erect simple culms, bearing a loose or contracted panicle of 1 -flowered spikelets, with the hairy pedicel of a second flower at the back of the upper palea. Glumes 2, nearly equal, keeled, longer than the paleae. Palese 2, bearded at the base with long hairs, the lower one awned on the back. Stamens 3. Grain free. § 1. CALAMAGROSTIS PROPER. — Glumes and palece membranaceous, the former boat-shaped : panicle open or loose. 1. C. coarctata, Torr. Panicle contracted, lanceolate; glumes lance- olate, awl-pointed, rough-keeled, with a purple stripe near the margins ; lower 47 554 GRAMINE.E. (GRASS FAMILY.) palea 5-nerved, rough-keeled, about as long as the awn, much longer than the hairs at the base. — Swamps, North Carolina, and northward. Aug. and Sept. — Culms 2° -3° high. Leaves somewhat glaucous. Panicle £° long, purplish. § 2. AMMOPHILA. — Glumes and palece somewhat coriaceous: panicle spike-like. 2. C. arenaria, Roth. Culms and elongated convolute leaves rigid ; pan- icle long (5' -9'), cylindrical; lower palea 5-nerved, obscurely awned, 3 times as long as the hairs at the base. — Sandy sea-shore, North Carolina, and north- ward. Aug. — Root-stock creeping. Culm 2° -3° high. Spikelets, like the whole plant, whitish, %' long. 13. STIPA, L. FEATHER-GRASS. Perennial grasses, with convolute leaves, and loose panicles of 1 -flowered spikelets, with very long awns. Glumes 2, membranaceous, nearly equal, awn- less and persistent. Palese coriaceous, involute, raised on an obconical bearded stalk, the lower one with a twisted or contorted awn jointed with its apex. Sta- mens 3. Grain terete, enclosed in the palea}. 1. S. avenacea, L. Culms ( 1° - 2° high) clustered ; leaves narrowly linear, rough, the lowest elongated ; awn pubescent, bent in the middle, many times longer than the dark-brown palea. — Dry soil, Florida, and northward. April. 14. STREPTACHNE, R. Brown. Grasses with the habit of Aristida. Spikelet 1 -flowered ; flower stalked. Glumes 2, loose, awnless. Palcee 2 ; the exterior cylindrical-involute. Awn terminal, simple, jointless, twisted below ; the inner palea included, awnless. Stamens 3. Styles 2. Stigmas plumose. 1. S. ? Floridana, n. sp. Culms (2° high) simple, slender, erect; leaves long, filiform, convolute, smooth; sheaths hairy at the throat; panicle (1° long) narrow, erect, the rough branches by pairs, scattered ; spikelets short-stalked ; glumes equal, linear, purple, 1 -nerved, the lower one awn-pointed, hispid-serru- late on the back, the upper smooth, truncated, mucronate-awned ; palese raised on a slender bearded stalk, smooth, shorter than the glumes ; the lower one lin- ear-subulate, gradually tapering into the long compressed curved awn, convo- lute, and enclosing the capillary inner one. — South Florida, Dr. Blodgett. 15. ARISTIDA, L. WIRE-GRASS. Dry and harsh perennial grasses, growing in barren soil, with narrow leaves, racemose or spiked-panicled 1 -flowered spikelets nearly as in Stipa, but the lower palea ending in a triple awn, which is continuous with its apex (except in No. 9). Upper palea minute. Grain linear. * Glumes unequal, the upper one shorter. 1. A. lanata, Poir. Culms stout (2° -3° high), simple; leaves flat, rough on the upper side, the sheaths, like the axils of the loose panicle, woolly ; lower palea (4" long) as long as the upper glume and lateral awns, and one half as (GRASS FAMILY.) 555 long as the middle one. — Dry pine barrens, Florida to North Carolina. July and Aug. — Lower palea spotted with purple. 2. A. purpurascens, Poir. Culms (l£°-2° high) slender, sparingly branched ; sheaths smooth ; glumes sometimes nearly equal, purple ; lower palea (3" long) £-J as long as the nearly equal awns. — Dry soil, Florida, and northward. Aug. — Panicle slender, 1° long, with the branches appressed. * * Glumes equal, or the upper one longer. 3. A. gracilis, Ell. Culms much branched at the base, very slender; leaves flat ; panicle very narrow, with distant appressed branches ; middle awn rather longer than the rough and spotted lower palea, the lateral ones much shorter ; glumes nearly equal. — Dry gravelly soil, Florida to North Carolina. Aug. — Culms (with the panicle) 6' - 12' high. Spikelets purple. 4. A. virgata, Trin. Culms (2° -3° high) branched near the base; leaves flat, rigid; panicles (1° long) loose; glumes nearly equal; middle awn spread- ing, twice as long as the erect lateral ones, and four times the length of the short (2" long) lower palea, — Diy soil, Florida to North Carolina. Var? palustris. Every way larger (3° -5° high), with the panicle l£°- 2£° long, and the straight awns nearly equal. — Margins of pine-barren ponds, West Florida. Aug. and Sept. 5. A. Stricta, Michx. Culms (2° -3° high) tufted, simple, straight; leaves chiefly radical, filiform, involute, rigid, hairy at the base; panicle (1° long) spiked ; lateral awns as long as the lower palea, the middle one one third longer. — Dry sandy ridges in the pine barrens, very common. June and July. 6. A. dichotoma, Michx. Culms low, fork-branched ; leaves filiform, erect; panicle (2' -3' long) spiked; glumes purple, longer than the paleae and the very short and erect lateral awns, the middle awn shorter than the palea), spreading. — Dry soil in the upper districts. Aug. and Sept. — Culms 6'- 12' high. 7. A. spiciformis, Ell. Culms simple, rigid, erect (l°-l£° high); leaves rigid, erect, convolute, smooth ; panicle spiked ; glumes much shorter than the long (!') very slender paleae, the upper one twice as long as the lower ; awns nearly equal, widely spreading, the middle one as long as the paleai. — Low pine barrens, Florida to South Carolina. Aug. and Sept.— Panicles 2' - 4' long, at length twisted. 8. A. oligantha, Michx. Culms (l°-2° high) branched, slender; leaves filiform, convolute ; spikelets scattered, single or by pairs, in a simple terminal raceme ; glumes nearly equal, longer than the paleae ; middle awn very long (2'), rather longer than the lateral ones, and 2-3 times the length of the palese. — South Carolina or Georgia, Nuttall. Sept. 9. A. tuberculosa, Nutt. Culms rigid, branching (l°-l£° high) ; leaves flat; glumes nearly equal, longer than the paleae, bristle-awned ; awns (2' long) equal, jointed with the paleae, twisted below, then widely spreading, several times longer than the palea. — Dry ridges, in the middle districts of Georgia. Sept. — Panicle simple. 556 GRAMINE^E. (GRASS FAMILY.) 16. SPARTINA, Schreb. MARSH-GRASS. Rigid perennial grasses, growing chiefly in saline marshes, with simple culms, concave or convolute leaves, and flattened 1 -flowered spikelets, closely imbricated in two rows on one side of the triangular rachis, forming appressed or spreading alternate spikes. Glumes 2, unequal, acute or short-awned, commonly bristly- serrulate on the keel ; the upper mostly longer than the unequal awnless palese. Stamens 1-3. Styles long, united below, or nearly distinct. Grain free. * Leaves convolute, rusk-like. 1. S. juncea, Willd. Spikes 3-9, remote, erect; glumes hispid-serrulate on the keel, the upper 2-3 times longer than the lower one ; lower palea, and sometimes the upper also, rough above. — Sandy or marshy places along the coast, Florida, and northward. July and Aug. — Culms l°-3° high. Leaves pungent. Spikes 1'- 2' long. Stamens 1-3. 2. S. gracilis, Hook. Spikes 15-30, closely imbricated in a cylindrical spike, the lowest rather distinct ; glumes hispid on the back, the upper one third longer than the lower one, obtuse, mucronate ; palese obtuse, the lower rough on the back, the upper smooth. — Sandy saline swamps, West Florida. July and Aug. — Culms (l°-2°high) and rush-like leaves very rigid. Common spike 4' - 6' long. Proper spikes 4" - 6" long. * * Leaves concave or flat. 3. S. polystachya, Willd. Spikes numerous, spreading ; upper glume and nearly equal palese slightly roughened, 2-3 times longer than the lower one; leajpes broad (£'-!£')> concave, very rough on the margins. — Brackish marshes, Florida to North Carolina. Aug. and Sept. — Culms stout, 4° - 8° high. Spikes 2' - 3' long, racemed. 4. S. glabra, Muhl. Spikes numerous, appressed to the common rachis ; upper glume linear, obtuse, 3 times the length of the lower one, and, like the palea?, very smooth ; leaves concave, smooth on the margins. — Salt marshes, Florida, and northward. Aug. and Sept. — Culms 2° - 4° high. Leaves nar- rower than the last, elongated. 17. GYMNOPOGON, Beauv. Low perennial grasses, with Sfcort and crowded distichous spreading leaves. Spikelets appressed, scattered on the straight and at length reflexed branches of the simple panicle, consisting of one perfect flower, and the awn-like pedicel of a second flower above. Glumes 2, subulate, hispid-serrulate. Palese 2, shorter than the glumes, the lower one awned under the apex. Stamens 3. 1. G. racemosus, Beauv. Culms (1° high) rigid; leaves lanceolate (l^'-2' long) ; branches of the panicle bearing the linear spikelets from the base to the summit ; awn 2-3 times the length of the palese and the pedicel of the sterile flower. ( Andropogon ambiguus, Michx.) — Var. FILIFORMIS has nar- rower leaves, the spikelets borne above the middle of the branches, and the awns and sterile pedicel shorter than the palese. — Dry sandy soil, Florida, and north- ward. Sept. and Oct. GRAMINEvE. (GRASS FAMILY.) 557 18. EUSTACHYS, Dcsv. Chiefly tropical grasses, with compressed culms and sheaths, distichous flat or folded obtuse leaves, and digitate rarely single spikes. Spikelets 2 - 3-flowercd, imbricated or crowded in 2 rows on one side of the triangular rachis ; the lowest flower perfect and sessile, the upper ones staminate or neutral, and stalked. Glumes 2, membranaceous, persistent, the upper (exterior) one short-awned. Paleae coriaceous, the lower one boat-shaped, mucronate-awned under the apex, the upper (mostly wanting in the sterile flowers) unawned. Stamens 3. Grain free. 1. E. petrsea, Desv. Culms (l°-2°high) clustered, erect; leaves glau- cous ; spikes 3 - 5 ; spikelets 2-flowered ; glumes hispid, the upper oblong, deeply emarginatc ; lower palea dark brown, hairy on the keel and margins, bearded at the base ; sterile flower neutral, club-shaped, awnless. — Damp soil along the coast, Florida to North Carolina. May -Aug. )]. — Leaves 3' -5' long. Spikes erect. Spikelets roundish. 2. E. glauca, n. sp. Culms stout (3° -5° high), and, like the broad (6" -8" long) leaves, smooth and glaucous; spikes about 20; spikelets roundish, 2-flowered; glumes hispid, the upper lanceolate, entire; palea dark brown, smooth ; upper flower obovate, short-awned. — Brackish marshes, "West Florida, Aug. and Sept. © — Culms £' wide at the base. Leaves l£° - 2° long. 3. E. Floridana, n. sp. Culms slender (2° high) ; leaves (2' -4' long) glaucous ; spikes single or by pairs ; spikelets light brown, 3-flowered, the mid- dle flower staminate ; glumes smoothish, truncate, oblong ; lower palea of the perfect flower hairy on the keel and margins, distinctly awned ; sterile flowers obovate, smooth, the lower one short-awned. — Dry pine barrens, Middle Flor- ida. July -Sept. 1|. — Spikelets larger than in the two preceding. 19. CYNODON, Richard. BERMUDA-GRASS. Diffusely creeping grasses, with short and erect flowering stems, and flat leaves. Spikes digitate, 1-sided. Spikelets crowded, awnless, 2-flowered; the lower flower perfect, the upper an awn-like pedicel. Glumes 2, membranaceous, nearly equal. Palese 2, membranaceous, the lower one larger and keeled. Sta- mens 3. Grain free. 1. C. Dactylon, Pers. Spikes 3-5, filiform, purple; glumes rough- keeled ; palese longer than the glumes, the lower one boat-shaped, and hairy on the keel ; anthers and stigmas purple. (Digitaria Dactylon, Ell.) — Waste places. Introduced. — Culms perennial. Leaves 2' -4' long. Spikes l'-2' long, filiform. 20. CTENIUM, Panz. Flat-leaved grasses, with the erect culms terminated by a single falcate spike. Spikelets 4 - 5-flowered, crowded in two rows on the lower side of the flattened rachis ; the two lower sterile, of 1 - 2 paleae which are awned under the apex, and similar to the third perfect one; the upper ones (1-2) abortive and awn- 47* 558 GRAMINE^E. (GRASS FAMILY.) less. Glumes 2, membranaceous, very unequal ; the larger upper one with a spreading awn or tubercle on the back. Palese of the perfect flower membrana- ceous ; the lower one awned below the apex, and densely ciliate on the margins. Stamens 3. Ovary smooth. Styles terminal : stigmas elongated, plumose, with simple hairs. Grain free. 1. C. Americanum, Spreng. Root pungent; culm (2° -3° high) rough, like the narrow leaves; spike at length recurved or coiled (3' -4' long) ; upper glume granular on the back; the stout awn spreading horizontally. (Monocera aromatica, Ell) — Low pine barrens, Florida to North Carolina. July and Aug. H. 21. DACTYLOCTENIUM, Willd. CROWFOOT-GRASS. Annual creeping or spreading branching grasses, with flat leaves and digitate rarely single spikes. Spikelets 2 - several-flowered, crowded on one side of the flattened rachis ; the uppermost flower imperfect. Glumes 2, compressed-keeled, membranaceous ; the upper (exterior) awn-pointed. Pales 2, boat-shaped, pointed. Stamens 3. Stigmas plumose, with branching hairs. Grain round- ish, rugose, free. 1. D. JEgyptiacum, "Willd. Culms ascending from a creeping base; leaves fringed ; spikes commonly 4, awn-pointed ; spikelets 3-flowered. (Eleu- sine? cruciata, Ell.} — Cultivated ground, common. Introduced. — Culms nu- merous, 1° high. Spikes 1'- 2' long. 22. ELETJSINE, Gart. Characters chiefly of Dactyloctenium, but the narrower glumes and palese obtuse and awnless. Stigmas plumose, with simple hairs. Spikelets closely imbricated. — Low annuals. 1. E. Indica, Gaert. — Cultivated ground, very common. Introduced. Culms (6' -18' high) flattened; leaves flat; spikes 2 -several, the lower ones sometimes scattered (2' -4' long) ; spikelets 6-flowered. 23. LEPTOCHLOA, Beauv. Flat-leaved grasses, with the numerous spikes disposed in a terminal raceme. Spikelets sessile, loose on one side of the elongated filiform rachis, 3 - many- flowered. Glumes 2, membranaceous, unequal, keeled. Paleae 2, membrana- ceous ; the lower one longer than the upper, 3-nerved, awned or unawned. Stamens 3. Grain oblong, free. § 1. LEPTOCHLOA PROPER. — Loiver palea unawned. 1. L. mucronata, Kunth. Culms 2° -3° high; sheaths of the broad (4"-» 6" wide) rough leaves hairy; spikes numerous, in an elongated raceme, 2' -4' long, spreading; spikelets minute, 3 - 4-flowered ; glumes mucronate, longer or shorter than the flowei's ; lower palea smooth, emarginate. (Eleusine mucro- nata, Michx.) — Cultivated fields, Florida, and northward. Aug. - Sept. © GRAMINE^E. (GRASS FAMILY.) 559 2. L. dllbia, Nees. Culms 2° high, slender ; leaves elongated, filiform, with smooth sheaths ; spikes 6 - 10, somewhat corymbose ; spikclets distant on the filiform rachis, 6-flowcrcd ; glumes lanceolate, nearly equal, serrulate on the keel, shorter than the awnless soon spreading flowers ; palea} fringed on the mar- gins, the lower one truncate or emarginate. — South Florida. § 2. DIPL ACHNE. — Lower palea 2-cleJl, 1 - 3-awned. 3. L. polystachya, Kunth. Culms £°-4° long, mostly prostrate and rooting at the lower joints, much branched ; raceme partly included in the sheaths of the elongated leaves ; spikes numerous, approximate, erect, 3' - 5' long; spikelets lanceolate, 8- 10-flowered ; glumes unequal, shorter than the flowers ; lower palea hairy on the margins below, 3-awned ; the lateral awns minute, the middle one about as long as the palea. (Festuca polystachya, Michx.) — Brackish swamps along the coast, Florida, and northward. Sept (T) 4. Ii. Domingensis, Link.? Culms erect, simple, straight and slender; leaves narrowly linear or filiform, shorter than the culm ; spikes 6-12, scattered, exscrted ; spikelets lanceolate, 6 - 8-flowered ; glumes unequal, acute, rough- keeled ; lower palea hairy on the margins, much longer than the single rough awn. — South Florida. Oct. — Culms 1° - 1£° high. • 24. TRICUSPIS, Beauv. Perennial grasses, with tall, erect, simple culms, from a thick and scaly root- stock, elongated rigid leaves, and ovate or lanceolate 5 - 7-flowered stalked spike- lets, disposed in a simple or compound open panicle. Glumes 2, smooth, emar- ginate, shorter than the crowded flowers. Palea} 2, 2-cleft, the lower one shortly 3-awned by the percurrent hairy nerves, bearded at the base. Stamens 3. Grain obovate -oblong, free. 1. T. sesslerioides, Torr. Panicle ample and diffuse, or contracted and erect, bearded in the axils ; spikelets terete, lanceolate, mostly purple ; lower palea with two awn-like teeth similar to the three short awns. (Poa quinquifida, Pursh.) — Dry soil, Florida, and northward. Aug. and Sept. — Culms 3° -5° high. Sheaths often hairy. 2. T. ambigua. Panicle short, nearly simple, spreading, smooth in the axils, clammy ; spikes ovate or roundish, compressed ; teeth of the lower palea obtuse, wider than the three short awns. (Poa ambigua, Ell.) — Low pine bar- rens, Florida to South Carolina. August. — Culms 2° -3° high. 25. TRIPLASIS, Beauv. Low tufted fibrous-rooted grasses, with branching culms, linear-subulate leaves, and few 4-flowered purple spikelets, disposed in reduced lateral and terminal panicles. Flowers scattered on the slender rachis. Glumes 2, lanceolate, smooth. Paleae 2, hairy on the margins ; the lower one 2-cleft, with a bearded or plumose awn between the teeth ; the upper concave, 3-toothed. Stamens 3. Grain free. 1. T. Americana, Beauv. Culms erect, 1° - 1£° high ; leaves and sheaths hairy; lateral panicles included; awn of the lower palea plumose, much longer 560 GRAMINE.E. (GRASS FAMILY.) than the awn-pointed teeth. (Uralepis comma, Ell.) — Dry sandy soil, Florida to North Carolina. Aug. and Sept. ty. 2. T. purpurea. Culms procumbent or ascending, 1°-1|° long; leaves and sheaths smooth or roughish ; lateral panicles included ; awn of the lower palea bearded, about as long as the obtuse teeth, and much shorter than the paleae. (Aira, Ett. Uralepis purpurea, Nutt.) — Drifting sands along the coast, Florida, and northward. Aug. -Oct. — Leaves 1'- 4' long. Spikelets bright purple. 26. EATONIA, Kaf. Slender erect and tufted grasses, with narrow leaves, and small smooth (not hairy) spikelets of pale flowers in a racemose or spicate panicle. Spikelets awn- less, 2 - 5-flowered, the uppermost flower usually an awn-like pedicel. Glumes membranaccous, shorter than the flowers ; the lower one linear and 1-nervcd ; the upper obovate, 3-nerved. Paleae unequal, the lower one obtuse. Stamens 3. Grain linear-oblong. 1. E. Obtusata, Gray. Panicle dense, spike-like, the 2-flowered spikelets much crowded on the short erect branches ; glumes rough on the back, the upper one round-obovate, somewhat truncate, rather rigid ; lower palea lanceolate- oblong, obtuse, rough-keeled. (Aira obtusata, Michx.) — Dry soil, Florida, and northward. April and May. 1|. and (J) — Culms l°-2° high. 2. E. Pennsylvanica, Gray. Panicle slender, loose, the 2-3-flowered spikelets scattered on the slender branches ; glumes slightly roughened on the back, the upper one obovate, obtuse, or abruptly short-pointed ; lower palea ob- tuse ; leaves flat, with the sheaths smooth, rough, or soft-downy. (Aira mollis, Ell) — Upper districts. April. 1J. — Culms 1 ° - 2° high. Var. ? filiformis. Culms 1° high, very slender, barely longer than the fili- form involute leaves ; panicle linear, loose ; spikelets scattered, mostly 3-flowercd, the flowers distant on the rachis, the lowest one and glumes nearly smooth. ( Aira mollis, var. Ell.) — Dry pine barrens, Florida to South Carolina. March. 27. MELICA, L. Perennial grasses, with flat leaves, and 3 - 5-flowered spikelets of large flowers in a simple panicle. Flowers awnless, the upper ones imperfect. Glumes mcm- branaceous, unequal, convex, obtuse, scarious on the margins, many-nerved. Palese similar to the glumes ; the upper one smaller, concave on the back. Sta- mens 3. Grain free. 1. M. mutica, Walt. Culms l°-2°high; leaves and sheaths smoother rough-pubescent ; panicle loose, of few nodding racemose spikelets ; upper flow- ers imperfect, truncate-obovate ; palea roughish. (M. glabra, Michx.) — Dry open woods, Florida, and northward. April. 28. GLYCERIA, Brown. Smooth perennial marsh or water grasses, with flat leaves, nearly entire sheaths, and terete or tumid many-flowered spikelets disposed in a simple or compound GRAMINE.E. (GRASS FAMILY.) 561 panicle. Rachis jointed. Glumes membranaceous, obtuse, persistent. Palese nearly equal, somewhat chartaceous, obtuse, early falling away with the separat- ing joints of the rachis ; the lower one naked, convex, 7-nerved. Stamens 2-3. Grain free, oblong. 1. G. nervata, Trin. Culms erect; panicle diffuse, the capillary branches at length drooping ; spikelets purplish, very numerous, ovate-oblong, 5 - 6-flow- ered, nearly terete ; lower palea oblong, obtuse, 7-nerved. (Poa parviflora, Pursh.) — Wet swamps, West Florida, and northward. July. — Culms 2° -3° high. Spikelets 2" long. 2. G. pallida, Trin. Culms erect or ascending; panicle narrow, nearly simple, with the capillary branches erect ; spikelets pale, oblong-linear, 5 - 9-flow- eretl, nearly terete ; lower palea oblong, minutely 5-toothed, 7-nerved. — Shallow water, North Carolina, and northward. July. — Culms 1° - 3° long. Spikelets i1 long. 3. G. fluitans, R. Brown. Culms thick, ascending from a creeping base ; leaves long, broadly linear ; panicle long, narrow, racemose ; spikelets linear, te- rete, pale, loosely 7 - 13-flowered (!' long); lower palea obtuse, or slightly 3- lobed at the scarious apex, roughish, 7-nerved. (Poa fluitans, Ell.) — Shallow water in the upper districts, and northward. June and July. — Culms l°-5° long. Panicle 1° long. 4. G. rigida, Smith. Culms low (2' -4' high), ascending, rigid; leaves subulate, £'-!£' long, involute and rigid when dry; panicle 1'- 1£' long, lance- olate, dense, 1-sided; spikelets linear, acute, 5-11-flowered, short-pedicelled ; glumes serrulate on the keel; palese obtuse, emarginate or mucronate. (Poa rigida, L.) — Dry soils, around Beaufort, South Carolina, Elliott. April and May. 29. ARUNDINABIA, Michx. CANE or REED. Tall woody grasses, with clustered spreading branches, broad and flat persist- ent leaves, and racemose or panicled many-flowered spikelets. Glumes unequal, concave, membranaceous, awn-pointed. Paleae rather loosely imbricated on the bearded and jointed rachis, nearly equal ; the lowest one ovate-lanceolate, con- cave, many-nerved, awn-pointed; the upper strongly 2-keeled. Stamens 3. Stigmas 3. Grain oblong, free. 1. A. gigantea. (CANE.) Culms arborescent, 10°- 20° high, rigid, sim- ple the first year, branching the second, afterwards at indefinite periods fruiting, and soon after decaying; leaves lanceolate (l'-2' wide), acuminate, smoothish ; panicles lateral, composed of few simple racemes ; spikelets purple, erect ; lower palea lanceolate-ovate, pubescent, fringed (8" long), awn-pointed. (Arundinaria macrosperma, Michx.) — Banks of the larger rivers, Florida to North Carolina. February. 2. A. tecta, Muhl. (REED.) Culms slender, 2° -10° high, branching; leaves linear-lanceolate, acuminate, roughish, the sheaths bearded at the throat ; spike- lets solitary, or in a simple raceme at the summit of the branches, or frequently 562 GRAMINEJE. (GRASS FAMILY.) on leafless radical culms ; lower palea (6" long) ovate-lanceolate, smooth, fringed on the margins, awn-pointed. (Arundo tecta, Walt.) — Swamps, Florida to North Carolina. Feb. and March. 30. BRIZOPYRUM, Link. A low and rigid perennial dioecious grass, growing in saline marshes, with linear-subulate involute distichous leaves, and many-flowered compressed spike- lets, crowded in a nearly simple spike. Glumes and paleae smooth, somewhat coriaceous, obtuse, compressed, not keeled ; the lower ones several-nerved. Sta- mens 3. Stigmas 2. Grain oblong, free. 1. B. spicatum, Hook." Rootstocks long and creeping; culms l°high; leaves spreading, rigid, 2' -4' long, smooth, like the imbricated sheaths ; spike- lets oblong, 7-15-flowered. (Uniola spicata, Ell.) — Low sandy shores and marshes, West Florida, and northward. Aug. and Sept. 31. POA, L. MEADOW-GRASS. Grasses with tufted culms, smooth flat and tender leaves, and compressed few- flowered spikelets in loose or contracted panicles. Glumes unequal, shorter than the flowers. Lower palea nearly membranaceous, keeled, scarious on the margins, awnless, 5-nerved, the three more prominent nerves mostly hairy or woolly below ; upper palea 2-toothed, falling at maturity with the lower one. Stamens 2-3. Stigmas plumose. Grain free. * Branches of the panicle single, or by pairs. 1. P. anmia, L. Annual; culms tender, spreading, 6-10' high; leaves linear, 3' -6' long, 1^" wide; panicle ovate, the smooth branches at length reflexed ; spikelets ovate, about 5-flowered ; glumes obtuse or emarginate, half as long as the sparsely hairy obtuse flowers. — Yards and gardens, Florida, and northward. Feb. and March. Introduced. 2. P. cristata, Walt. ? Annual; culms erect, 6' -10' high; leaves linear, subulate, 1 ' long, £" wide ; panicle linear or lanceolate, dense, the lowest of the rough branches spreading ; spikelets 3 - 5-flowered ; lower palea with a promi- nent crest-like fringe on the back, barely longer than the acute glumes. — Dry soil around Quincy, Middle Florida. April. 3. P. flexuosa, Muhl. Perennial; culms weak, mostly erect, l°-l£° high; leaves narrowly linear; branches of the panicle by pairs (l£'-2' long), capillary, widely spreading ; spikelets 2-4 near the summit of each branch, pale, oblong, 3 - 4-flowered ; glumes acute ; lower palea compressed and very obtuse at the apex, hairy on the nerves. (P. autumnalis, Ell.) — Rich shaded soil, Florida, and northward. May. * * Branches of the panicle 3 - 6 in a duster : perennials. 4. P. pratensis, L. Culms terete, ascending from a creeping base ; leaves mostly abruptly pointed ; branches of the panicle expanding, about 5 in a clus- ter ; spikelets ovate, 3 - 5-flowered, crowded ; flowers closely imbricated ; lower GRAMINE^E. (GRASS FAMILY.) 563 palea acutish, strongly nerved, hairy. (P. viridis and P. angustifolia, Ell.) — Rich soil, mostly around dwellings. Introduced. May. — Culm 1° - 2° high. 5. P. compressa, L. Culms ascending from a creeping base, geniculatc, and, like the sheaths, compressed ; panicle contracted, 1-sided, the short erect branches 2-4 in a cluster; spikclets 4 - 8-flowercd ; lower palca rather obtuse, hairy below, faintly nerved. — With the preceding. May. — Culms 1° high. Leaves bluish green. 32. ERAGROSTIS, Beativ. Spikelets few - many-flowered, compressed. Lower palea 3-nerved, not hairy nor woolly ; the upper one remaining after the rest of the flower has fallen. Otherwise as in Poa. — Culms often branched. Leaves and sheaths smooth or hairy. * Culms prostrate and creeping, diffusely branched. 1. E. reptans, Nees. Culms filiform, the flowering branches erect (4' -6' high), leaves short (l'-2' long), linear; sheaths downy at the base ; panicle small (2' -3' long), ovate or oblong, often contracted ; spikelets linear, 10-30-flowered, nearly sessile, imperfectly dioecious ; paleae acute. (Poa reptans, Michx.) — Low sandy places, Florida, and northward. Aug. and Sept. © — Plant pale green. * * Culms branching, erect or ascending : annuals. 2. E. megastachya, Link. Culms prostrate and geniculate at the base, ascending ; leaves linear ; sheaths smooth ; panicle oblong or pyramidal, con- tracted or spreading; spikelets oblong or at length linear (3"- 5" long), 10-30- flowered, often lead-color; lower palea ovate, obtuse. (Briza Eragrostis, L.) — Cultivated or waste grounds, Florida, and northward. July and Aug. 3. E. ciliaris, Link. Culms slender, prostrate or ascending, geniculate ; leaves (2' -3' long) linear, smooth ; sheaths smooth, bearded at the throat; panicle spiked, cylindrical, the minute (£" long) ovate spikelets densely crowded on the short appressed branches, 5 - 7-flowered ; lower palea obtuse, mucronate, rough or ciliate on the back ; the upper one fringed on the margins with long bristly hairs. — Varies with the culms nearly erect, open lanceolate or oblong panicle, dis- tinct pale spikelets, and flowers more scattered on the smooth rachis. — Waste places and along roads, Florida to South Carolina ; the var. at Key West. — Culms 6' - 12' long. Spikelets purple. 4. E. Purshii, Schrad. Culms slender, ascending, geniculate near the base, 6' -12' long; leaves narrowly linear, with the sheaths bearded at the throat ; panicle 3' - 6' long, the lowest of the widely spreading branches whorled ; spikelets linear, 5- 10-flowered, purple or pale, the lateral ones appressed, and mostly longer than their pedicels ; lower palea ovate, 3-nerved. (Poa pectinata, and P. tenella, of authors. ) — Waste places and cultivated grounds, common. June - Sept. 5. E. COnferta, Trin. Culms erect, stout, 2° - 3° high ; leaves linear ; sheaths smooth ; panicle elongated (1°- 2° long), linear or lanceolate, the very numerous clustered branches and small oblong 8 -10-flowered spikelets erect or 564 GRAMINE^E. (GRASS FAMILY.) appressed ; flowers minute, raembranaccous, rather distant on the rachis ; lower palea obtuse, 3-nerved. (Poa conferta, Ell.) — River-banks, Florida to South Carolina. Aug. and Sept. — Panicle whitish. Spikelets 1"- 1^" long. =fc * * Culms simple, erect, shorter than the large and spreading panicle. 6. E. tenuis, Gray. "Panicle virgately elongated (l°-2^° long), very loose, the spreading branches bearded in some of the lower axils, their remote divisions and long diverging pedicels capillary ; spikelets 2-6- (sometimes 7 - 12-) flowered, pale or greenish; glumes lanceolate or awl-shaped, very acute (l£"-2" long), membranaceous, as are the oblong-lanceolate acute flowers; lower palea distinctly 3-nerved ; the upper, ciliate-scabrous." Gray. (Poa te- nuis, Ell.) — Greenville, South Carolina, Elliott; North Carolina, Curtis. Aug. and Sept. U ? — Leaves (l£° - 2° long) and sheaths smooth or hairy. 7. E. capillaris, Nees. Panicle widely expanding, the lower axils mostly bearded ; spikelets very small (!"- l£" long), 2 -4-flowered, mostly purple, on long diverging capillary pedicels ; glumes and flowers ovate, acute ; lower palea obscurely 3-nerved. (Poa, L. P. hirsuta, Michx.) — Dry uncultivated fields, Florida, and northward. Aug. and Sept. — Leaves and sheaths smooth or hairy. Panicle l°-2° long. 8. E. nitida. Panicle (l£°-3° long) reclining, the bristle-like or capil- lary branches erect-spreading, naked in the axils ; spikelets linear, flat (3" -4" long), 8-12-flowered, on erect-spreading pedicels l'-2' long; lower palea acute, 3-nerved, nearly smooth on the keel ; leaves and sheaths very smooth and shin- ing. (Poa nitida, Ell.) — Low grassy places along the coast, West Florida to South Carolina. Aug. and Sept. 1J. — Leaves narrowly linear, longer than the short (6' -9' high) culm. 9. E. pectinacea, Gray. Panicle erect, widely spreading, or the rather rigid and hairy branches at length reflexed ; spikelets purple, flat, about 8-flow- ered, shorter than the erect or slightly spreading pedicels ; lower palea ovate, acute, strongly 3-nerved, rough-keeled. (Poa pectinacea, Michx. P. hirsuta, Ell., $*c., not of Michx.) — Diy sterile soil, Florida, and northward. Aug. and Sept. — Panicle 1°- 1^° long. Leaves and sheaths mostly clothed with long soft hairs. Var. refracta. Smooth throughout, or the sheaths of the short and rigid leaves bearded at the throat ; panicle (6' - 12' long) with the branches reflexed ; spikelets sessile or nearly so, 15 -20-flowered ; lower palea faintly 3-nerved. (Poa refracta, Ell.) — Damp soil, Florida to North Carolina. — Spikelets about 5" long. 33. DACTYLIS, L. ORCHARD-GRASS. Perennial grasses, with simple culms, keeled leaves, and 2 - 7-flowered spikelets crowded in a 1 -sided glomerate panicle. Glumes and lower palea herbaceous, keeled, awn-pointed, rough-ciliate on the keel, the latter 5-nerved. Stamens 3. Grain free. 1 . D. glomerata, L. — Near Charleston, Elliott, and northward. Intro- duced. May and June. — Culms 2° -3° high. Leaves and sheaths scabrous. GRAMINE^E. (GRASS FAMILY.) 565 Spikelcts in close clusters at the end of the short branches, 2 - 4-flowered. Glumes and flowers lanceolate. 34. PESTUCA, L. FESCUE-GRASS. Grasses with flat or setaceous leaves, and panicled 3 - many-flowered mostly awned spikelets. Ilachis jointed as in Glyceria. Glumes unequal, mostly keeled. Paleae nearly coriaceous ; the lower one naked, rounded on the back, 3-5-nerved, acute or bristle-awned ; the upper commonly adhering at maturity to the enclosed grain. Stamens 1-3. * Flowers awned: panicle contracted: annuals. 1. F. Myurus, L. Culms erect, very slender, concealed in the sheaths of the bristle-like leaves ; panicle elongated, linear, 1 -sided, partly included in the sheath of the uppermost leaf, the scattered branches appressed ; spikelets com- pressed, 6-flowered ; awn 3-4 times the length of the subulate sparsely hairy palca. Stamen 1. — Dry sandy soil, Florida to North Carolina. March and April. — Culms 6' - 12' high. Panicle pale, 4' - 6' long. 2. P. tenella, Willd. Culms (2' -12' high) erect or ascending; leaves narrowly linear or filiform ; panicle long-peduncled, simple, spiked, or the branches slightly spreading, mostly purple ; spikelets crowded, compressed, oblong, 8- 12-flowered ; awn not longer than the subulate hispid palea. — Dry sandy soil, Florida, and northward. Feb. - April. 3. P. duriuscula, L. Culms erect, 1°- 1|° high ; leaves filiform; panicle simple, 1 -sided, mostly bending, spreading ; spikelets oblong, about 6-flowered ; awn shorter than the smooth lanceolate palea. — Around dwellings, Florida, and northward. Introduced. April - May. 4. P. parviflora, Ell. "Panicle equal, slender, appressed; spikelets terete, subulate, 5-flowered, awned; calyx (glumes) unawned." Ell. — Near Orangeburg, South Carolina. April, ty f — Culms 12'- 18' high. Awn as long as the palea. J * ) * * Flowers aimless : panicle spreading : perennials. 5. P. elatior, L. Culms l°-2° high; leaves linear, smooth; panicle long, narrow, erect, the erect branches bearing the loosely 5 - 10-flowered spikelets throughout ; palea oblong-lanceolate, barely pointed. — North Carolina, and northward. Introduced. 6. P. nutans, Willd. Culms 2° -4° high, and, like the broadly linear leaves, rough, or the latter hairy ; panicle 1 -sided, simple, erect or bending, the branches mostly by pairs, remote, bearing few ovate 5 - 6-flowered spikelets near their summits, at length reflexed ; glumes rough on the back, acute ; lower palea ovate, barely pointed. — Rich woods and banks, Florida, and northward. Aug. 7. P. grandiflora, Lam. "Panicle simple, erect; spikelets very few, generally 7-flowered ; flowers acute, distant." — Carolina, Frazer. ( * ) 8. P. unioloides, Willd. Panicle contracted ; spikelets compressed, 8-flow- ered, awnless ; sheaths of the leaves bearded at the summit. — Carolina, Willd. — Panicle nodding, expanding. Spikes oblong-lanceolate. Root fibrous. ( * ) 48 566 GRAMINE^E. (GRASS FAMILY.) 35. BROMUS, L. BROME-GRASS. Grasses with flat leaves, and long-stalked spikelets in loose panicles. Spike- lets large, 3 - many-flowered. Glumes membranaceous, unequal, commonly- keeled. Lower palea usually awned under the apex, convex on the back, about 7-nerved at the base. Stamens 3. Grain flattened and grooved on the inner face, and adherent to the upper palea. 1. B. Ciliatus, L., var. purgans, Gray. Perennial; panicle diffuse, the slender drooping branches mostly by pairs ; spikelets lanceolate after flowering, 10- 12-flowered ; lower glume 1-nerved, the upper 3-nerved ; lower palea convex on the back, 7-nerved, hairy, about as long as the awn ; culms 2° - 4° high ; leaves and sheaths smooth or downy. — River-banks and rich soil, Florida, and northward. June'. 2. B. secalinus, L. (CHEAT or CHESS.) Annual; panicle spreading, with clustered, at length drooping branches ; spikelets (£'- 1' long) 8-10-flow- ered, oblong-ovate ; lower glume 5-nerved, the upper 7-nerved ; palere smooth, the lower one convex, 7-nerved, awnless or short-awned ; culms l°-2°high; leaves and sheaths smooth or downy. — Grain-fields, &c. Introduced. 36. UNIOLA, L. Tough perennial grasses, with erect culms, from creeping rootstocks, and mostly broad, flat many-flowered spikelets, in erect or drooping panicles, with one or more of the lower flowers glume-like and neutral, and the upper imper- fect. Glumes lanceolate, compressed-keeled. Lower palea rather rigid, strongly compressed-keeled, nerved, awnless, much larger than the 2-keeled upper one. Grain free. Stamens 1-3. * Spikelets long-pedicelled, drooping : flowers oppressed. 1. U. latifolia, Michx. Culms 2° -3° high ; leaves ..flat, lanceolate (£'- 1' wide) ; panicle loose, drooping; spikelets green, oblong, acute, 10- 15-flow- ered ; lower palea one third longer than the upper, fringed on the keel, acutish ; stamen 1. — Banks of rivers, Florida, and northward. July and Aug. — Spike- lets 12" -15" long. 2. U. panicillata, L. Culms stout, 3° - 5° high ; leaves very long, rigid, soon convolute ; panicle crowded, drooping ; spikelets whitish, oblong-ovate, about 12-flowered; palea? equal, the lower one notched at the apex, serrulate on the keel ; stamens 3. — Drifting sands along the coast, West Florida, and north- ward. July and Aug. — Plant pale. Leaves 2° - 4° long. * * Spikelets sessik or nearly so, erect: flowers at length spreading. 3. U. gracilis, Michx. Panicle long and slender, with the branches ap- pressed ; spikelets small (2" -3"), wedge-shaped, 4-6-flowered; lower palea longer than the upper one, smooth on the keel, obtuse; stamen 1. — Rich damp soil, Florida, and northward. July and Aug. — Culms slender, mostly erect, 2° - 4° long. Leaves 2" - 6" wide. Sheaths smooth or downy. GRAMINE^E. (GRASS FAMILY.) 567 4. IT. nitida, Baldw. Panicle short, of few rigid spreading branches; spikelets (6" -8" long) oblong, 6-8-flowered; paleae equal, the lower acute, serrulate near the apex ; stamen 1 . — Swamps, Florida, Georgia, and westward. Aug. — Culms slender, 1° - 2° high. Leaves linear, smooth. 37. PHBAGMITES, Trin. REED. Large perennial marsh grasses, with broad and flat leaves and panicled spike- lets. Spikelets 3 - 6-flowered, with the rachis bearded with long and silky hairs. Lowest flower with a single stamen and imperfect ovary, the others triandrous and perfect. Glumes unequal, pointed. Lower palea narrowly awl-shaped, 2-3 times as long as the 2-cleft upper one. Stigmas 2. Grain free. 1. P. COmmunis, Trin. Culms 5° -8° high; leaves numerous, l'-2' wide ; panicle diffuse, nodding ; spikelets 3 - 5-flowered, about as long as the white hairs of the rachis. — Deep river marshes near the coast, Florida, and northward. Sept. 38. ELYMUS, L. LYME-GRASS. Coarse flat-leaved perennial grasses, with rigid erect culms, bearing a single spike of 2 - 7-flowered spikelets, arranged 2 - 4 in a cluster at each joint of the zigzag rachis. Glumes 2, placed side by side before the spikelets, coriaceous, unequal-sided, mostly awned. P,ale£e of the same texture as the glumes, the lower convex on the back, tapering into a rigid awn ; the upper enclosing the linear hairy-tipped grain. Stamens 3. Stigmas 2. 1. E. Virginicus, L. Spike dense, erect (3' long), the base usually included in the dilated sheath of the uppermost leaf; spikelets 2 -3 in a cluster, 2 - 3-flowered, smoothish, short-awned ; glumes lanceolate, strongly nerved. — River-banks, Florida, and northward. July and Aug. — Culms 2° - 3° high. Leaves rough. Sheaths smooth. 2. E. striatus, Willd. Spike dense, erect or slightly nodding (3' -5' long), long-peduncled ; spikelets 2-3 in a cluster, 1- 3-flowered, hairy, long-awned ; glumes linear-subulate, long-awned, much longer than the flowers. — Rocky woods and banks in the upper districts, and northward. July - Sept. — Culms slender, 2° high. Leaves and sheaths smooth or pubescent. 39. GYMNOSTICHUM, Schreb. Spikelets 2 - 3 on each joint of the rachis, raised on a short and thick stalk. Glumes none, or a single awn-like rudiment. Otherwise as in Elymus. 1. G. Hystrix, Schreb. Spike erect, 3' - 6' long, lax-flowered ; spikelets yellowish, 3 - 4-flowered, smooth or rough-hairy, long-awned ; leaves and sheaths smoothish. (Elymus Hystrix, Z.) — Upper districts, Georgia, and northward. July. _ Culms 2° - 3° high. Rachis 2-edged. 568 GRAMINE^E. (GRASS FAMILY.) 40. LOLIUM, L. DARNEL. Rigid flat-leaved (introduced) grasses, with spiked many-flowered compressed spikelets, with one edge applied to the jointless rachis. Glume 1, rigid, awnless. Lower palea concave, awnless, or short-awned, herbaceous. Stamens 3. Grain adherent to the upper palea. — Spikelets distant on the elongated rachis. 1. L. temulentum, L. Culm tall (2° high) ; rachis (1° long) flexuous; glume rigid, many-nerved, longer than the 5-flowered spikelet, lower palea awned under the scarious obtuse apex. — Grain-fields, North Carolina. ® 2. L. arvense, Withering. Culms low (6' -12'); rachis (6' -8' long) straight; glume rigid, many-nerved, shorter than the 8-10-flowered spikelet; lower palea awnless or short-awned at the scarious emarginate apex. — Streets of Apalachicola. July. (T) 41. AIRA, L. Low and slender tufted grasses, with the small 2-flowered stalked spikelets in a loose panicle. Glumes membranaceous, keeled, longer than the flowers. Pa- leae hairy at the base ; the lower one 3 -5-nerved, and awned on the back. Sta- mens 3. Grain oblong, smooth. 1. A. flexuosa, L. Culms nearly naked, l°-l£° high; leaves short, bristle-like ; panicle small, capillary, spreading ; lower palea toothed at the apex, much shorter than the slender awn ; grain free. — Mountains of Georgia, and northward. July. 1J. . 42. TRISETUM, Pers. Spikelets 2 - several-flowered. Lower palea compressed-keeled, usually bear- ing a bent awn below the 2-cleft or 2-pointed apex. Otherwise as in Aira. Spikelets in open or spiked panicles. 1. T. palustre, Torr. Smooth; culms weak (1°-1^° long) ; leaves flat, linear ; panicle ^long and narrow, loose ; spikelets 2 - 3-flowered ; the lower flower awnless, the upper with a spreading awn and an awn-like rudiment at the base, or rarely both flowers awnless. (Aira pallens, MuhL A. triflora, Ell. ?) — Swamps, West Florida to Mississippi, and northward. March and April. — Panicle pale, 4' - 8' long. 2. T. molle, Kunth. Soft downy; culms short (6' -8'); panicle (2' -3' long) contracted, dense and spike-like ; spikelets 2-flowered, the lower palea of both flowers with a spreading awn. —Mountains of North Carolina, and north- ward. . 43. DANTHONIA, DC. Tufted grasses, with racemose or panicled spikelets, and rough or bearded flowers. Spikelets 3 - many-flowered. Glumes nearly equal, membranaceoTis, longer than the flowers, awnless. Lower palea rigid, concave, many-nerved, bearded below, sharply 2-toothed at the apex, bearing an intermediate awn, which is flattened and twisted near the base. Stamens 3. Grain oblong, free. GRAMINE^E. (GRASS FAMILY.) 5G9 1. D. spicata, Beauv. Spikclets 4 - 8, racemose, 7-flowered ; lower palca rough with short rigid hairs, much longer than the lanceolate-subulate teeth ; culms (10' - 18' high) slender ; leaves short and narrow, soon involute. (Avena spicata, L.) — Dry ban-en soil, Florida, and northward. June and July. — Ra- ceme l'-2' long. 2. D. sericea, Nutt. Spikelets numerous, panicled, 7-flowercd ; lower palea white with long silky hairs, as long as the slender, awn-pointed teeth ; culms 2° high ; sheaths of the linear leaves woolly above. (Avena spicata, Ell.) — Upper districts of Georgia, and northward. April. 44. ARRHENATHERUM, Beauv. Tall grasses, with flat leaves, and spreading panicles with clustered or whorled branches. Spikclets 2-flowered, with the awn-like rudiifcent of a third flower ; the lower one staminate, the upper perfect. Glumes membranaceous, concave, the upper one as long as the flowers. Palese herbaceous ; the lower one of the perfect flowers slightly awned near the apex, that of the staminate flower bearing a long bent awn below the middle. Stamens 3. 1. A. avenaceum, Beauv. Culms smooth, 2° -3° high; leaves broadly linear; panicle narrow, whitish, 8' -10' long; glumes scarious. — North Caro- lina, Curtis. Introduced. May. 1J.. 45. ANTHOXANTHUM, L. SWEET-SCENTED GRASS. Grasses with flat leaves and 3-flowered spikelets, crowded in a spiked panicle ; the two lower flowers neutral, and consisting of a single haiiy palea awned on the back ; the upper flower perfect, of two smooth awnless paleae, and two very thin glumes, the upper one 3-nerved, longer than the flower, and twice as long as the 1-nerved lower one. Stamens 2. Grain enclosed in the paleae. 1. A. odoratum, L. Culms 1° high; leaves linear, hairy; panicle l'-3' long. — Low grounds around the larger cities, Savannah, Charleston, £c. In- troduced. April and May. 46. PHALARIS, L. Spikelets crowded in a densely spiked panicle, 3-flowered ; the two lower flow- ers reduced to hairy scales ; the upper perfect, consisting of 2 boat-shaped awn- less, at length coriaceous palea}, the lower one longer and enclosing the upper, and two nearly equal broadly keeled glumes which are longer than the flower. Stamens 3. Styles elongated. Grain enclosed in the paleaj. 1. P. intermedia, Bosc. Culms ascending, slender, 6'- 12' high; leaves short, with the uppermost sheath inflated; spike (£'-!' long) oval, compact; glumes lanceolate, slender-pointed, broadly keeled, twice as long as the hairy ovate flower. (P. Americana, Ell. P. microstachya, DC.) — Sandy places along the coast, Florida to North Carolina. April and May. (J) — Leaves broadly linear, l'-2' long, somewhat glaucous. Spike white or purplish. Var. angUSta. (P. angusta, Nees.) Culm stout (2° -3° high); spike cy- 48* 570 GRAMINE^:. (GRASS FAMILY.) lindrical (2' -4' long), somewhat interrupted at the base ; glumes short-pointed, rather narrowly keeled, J longer than the ovate hairy flower. — South Carolina, and westward, (l) — Leaves not glaucous, 4' - 10' long. 47. PASPALUM, L. Spikelets spiked or somewhat racemed, apparently 1 -flowered, awnless, borne in 1 - 4 rows on one side of the flattened or triangular jointless rachis. Glumes 2, membranaceous, nearly equal. Paleae 2, ovate or roundish, coriaceous ; the lower one larger, concave, and partly enclosing the flattened upper one. Sta- mens 3. Grain included in the indurated paleae. Such is the apparent structure of the spikelet, but theoretically it is 2-flowered, as in Panicum, with the lower glume and upper palea of the lower flower undeveloped. * Spikes racemed: spinets partly enclosed by the recurved margins of the broadly 'winged membranaceous rachis. 1. P. fluitans, Kunth. Spikes very numerous ; spikelets in two rows, mi- nute (I" long), oblong, pubescent ; glumes pointed ; culm branching, ascending from a creeping or floating base; leaves flat, broadly linear (4" -8" wide). (Ceresia fluitans, Ell.) — River-swamps, Florida, and northward. Sept. and Oct. (g -—Culms smooth, l°-3° long. 2. P. Walter!, Schultes. Smooth ; spikes 3-7, the lowest ones included in the sheath of the uppermost leaf; spikelets in two rows, ovate, smooth ; glumes obtuse, 5-nerved. (P. vaginatum, Ell.) — Low cultivated grounds, Florida to North Carolina, and westward. July and Aug. — Culms decumbent, creeping, l°-3° long. Leaves linear, short. * * Spikes mostly by pairs, divaricate : spikelets ovate-lanceolate, acute, 2-rowed on the slender wingless rachis : glumes smooth, longer than the palece. 3. P. Digitaria, Poir. Peduncles elongated, lateral and terminal, often 2-3 together from the upper sheath; spikes (3'-4' long) filiform, spreading horizontally; glumes even, 7-nerved, J longer than the obtuse perfect flower; culms ascending from a creeping and branching base ; leaves lanceolate, obtuse, flat, mostly fringed on the margins, the sheaths compressed. (Milium paspa- lodes, Ell.) — Open swamps, Florida to North Carolina, and westward. July- Sept. ty — Culms 1 ° - 2° high. 4. P. vaginatum, Swartz. Peduncles single, terminal, spikes (rarely 3 or 4) short (!'- 1^' long), erect or horizontal; glumes rugose, 5-nerved, rather longer than the acute flower ; culms diffusely creeping, short-jointed ; the flowering branches (4'- 10' long) erect; leaves (l'-3'long) subulate-convolute, their dilated imbricated sheaths persistent. (P. furcatum, Fluegge.) — Saline swamps, West Florida, and southward. Aug. and Sept. 1J. — Culms 2° *• 4° long. Sheaths compressed, bearded at the throat. * * * Spikes solitary, or few and racemose: spikelets ovate or roundish, in 2-4 rows: rachis mostly flattened andflexuous: glumes and palece nearly equal. 5. P. distichum, L. Spikes 2, rarely 3 or 4, spreading (!'-!£' long); spikelets in 2 rows, single, ovate, acute, as wide as the straight rachis ; glumes GRAMINEvE. (GRASS FAMILY.) 571 3-ncrvcd, more or less pubescent ; culms diffuse, creeping ; leaves flat, glaucous, rough above, and, like the sheaths, smooth or hairy. (P. tristachyum, Leconte1.) — Swamps and low grounds, Florida to North Carolina, and westward. Aug. and Sept. 1J. — Flowering stems 1° high. G. P. praecox, Walt. Spikes 3 - 6 ; spikelets by pairs, in 3 rows, orbicu- lar, compressed, as wide as the straight and flat rachis ; glumes smooth, 3-ncrved, often discolored; culms erect (3° -4° high), simple; leaves long and narrow; sheaths purple, smooth or hairy. — Pine-barren swamps, May and June. ty. 7. P. laeve, Michx. Spikes 3-5, long (3' -4') and slender; spikelets single, in 2 rows, orbicular, wider than the flexuous rachis ; glumes smooth and even, 5-nerved; culms simple, erect (3° -4° high); leaves (deep green) and sheaths smooth, or the latter hairy. — Dry woods and margins of fields, Florida, and northward. July and Aug. 1J. — Spikelets l£" long, larger and thicker than the last. 8. P. Floridamim, Michx. Spikes 2-3, thick, erect; spikelets large (2" long), mostly in 3 rows, broadly oval, tumid, wider than the flexuous rachis ; glumes smooth, 5-nerved, more or less rugose; culms rigid, erect (2° high); leaves narrow, rigid, and, like the sheaths, rough-hairy. (P. macrospermum, Fluegge. ) — Damp soil, near the coast, Florida. Aug. and Sept. 1|. — Plant glaucous. 9. P. racemulosum, Nutt. Spikes 2-3, slender, erect (4' long) ; spike- lets single or by pairs, obovate, distant on the filiform and somewhat flexuous rachis, distinctly pedicelled ; glumes smooth, obtuse, 7-ncrved ; culms simple, erect (2° -3° high) ; leaves long, linear, keeled, glaucous, and, like the sheaths, sprinkled with long white hairs. (Panicum Alabamense, Trin.) — Dry sandy soil, Florida to North Carolina, and westward. Aug. and Sept. 1J. . 10. P. undulatum, Poir. Spikes 2-12, spreading (2' -3' long); spike- lets small (1" long), oval or roundish, crowded in 3-4 rows under the broad and flat rachis ; glumes smooth, 5-nerved ; palese of the neutral flower often ru- gose ; culms erect or ascending, mostly branching ; leaves deep green, broadly linear, flat, mostly fringed on the margins or near the base, and, like the smooth or hairy sheaths, often purple. (P. purpurascens, Ett. P. plicatulum, Michx. P. confertum, Leconte. P. Boscianum, Fluegge. ) — Low cultivated grounds, Flor- ida to North Carolina. Sept. ® — Culms £° -3° high. 11. P. Blodgettii, n. sp. Spikes 4, filiform ; spikelets minute (J" long), in 3 rows, elliptical, as wide as the straight rachis ; glumes 3-nerved, minutely pubescent and granular; culms tufted, simple, erect (l°-l£° high) ; leaves flat, fringed on the margins. — Key West, Dr. Blodgett. 1|. — Spikes 1' long. 12. P. ciliatifolium, Michx. Spikes slender, mostly solitary, rarely 2- 3, on long lateral and terminal peduncles, of which 2-3 often project from the upper sheath ; spikelets orbicular, in 2 - 3 rows, wider than the narrow flexuous rachis; glume 3-nerved, commonly pubescent ; culms tufted (l°-2° long), erect or spreading, simple or branched ; leaves 2"- 9" wide, flat, wavy and fringed on the margins, or, like the sheaths, hairy all over. (P. setaceum, and P. debile, Michx. P. dasyphyllum, Ell., frc.) — Wet or dry soil, very common. June- Sept. © and ty. 572 GRAMINE.E. (GRASS FAMILY.) 48. AMPHICARPTJM, Kunth. Perennial flat-leaved grasses, with the spikelets nearly as in Panicum, but of two kinds ; one perfect, but rarely fruitful, disposed in a simple terminal panicle or raceme ; the other largei', pistillate or perfect, and borne at the summit of long runner-like radical peduncles. Lower glume minute or wanting. 1. A. Purshii, Kunth. Culms tufted, erect from fibrous roots, naked above ; leaves lanceolate, rather thin, clothed, like the sheaths, with spreading rigid hairs ; upper flowers in a strict panicle ; those at base of the culm perfect ; grain ovoid or oblong, terete. (Milium amphicarpon, Pursh.) — Low sandy pine barrens, Georgia, and northward. Sept.— Culms l°-3° high. Glumes of the upper flowers 5-nerved, of the lower one white, many-nerved. ' 2. A. Floridanum, n. sp. Culms subterraneous, diffusely creeping ; flowering branches erect (l°-3° high), branching; leaves linear-lanceolate, rigid, smooth ; sheaths fringed on the margins ; upper flower abortive, panicled or raccmcd, oblong (3" long), acute; glumes 5-nerved; anthers of the radical flow- ers imperfect ; grain compressed-globose, pointed. — Banks of the Apalachicola River, Florida. Sept. and Oct. — Plant pale green. Paleae of the radical flow- ers crustaceous at maturity. 49. PANICUM, L. PANIC-GRASS. Inflorescence spiked, racemose or panicled. Spikelets 2-flowered, naked (no involucre). Glumes 2, herbaceous; the upper one usually as long as the flow- ers, the lower smaller, often minute, or occasionally wanting. Lower flower staminate or neutral, of 1 -2 paleae ; the upper palea, when present, small and hyaline, the lower herbaceous and resembling the upper glume. Upper flower perfect, coriaceous, awnless, enclosing the free grain. Stamens 3. § 1. DIGIT ARIA. — Inflorescence spiked: spikelets 2-3 together , imbricated on one side of a filiform rachis : lower flower of one palea, and neutral : glumes shorter than the flowers : annuals. 1. P. sanguinale, L. (CRAB-GRASS.) Culms ascending from a diffusely creeping base ; leaves thin, spreading, the lower part, like the sheaths, hairy ; spikes 5-10, spreading; spikelets oblong, pointed; glumes hairy on the mar- gins, the upper half as long as the flowers, the lower minute, or in var. VILLOSUM (Digitaria villosa, Ell., a smaller and more hairy form) wanting. — Cultivated grounds and waste places everywhere. May -Oct. 2. P. filiforme, L. Culms erect, sparingly branched (2° - 3° high) ; leaves linear, erect, and, like the sheaths, hairy ; spikes 2-5, alternate, erect, filiform ; spikelets oblong, acute, scattered ; upper glume half as long as the acute black- ish palea, the lower wanting. — Diy sandy soil, common. Aug. and Sept. § 2. PANICUM PROPER. — Glumes 2, unequal, awnless : spikelets in panicles or racemes. * Spikelets crowded in simple or panicled racemes. •*- Sterile flower of one palea, neutral. 3. P. tenuiculmum, Meyer. Culm filiform, erect, simple ; leaves chiefly radical, linear (2" wide) ; racemes 8 - 12, remote, 3 - 6-flowered, forming a long (GRASS FAMILY.) 573 narrow and simple panicle ; rachis flexuous, naked and bristle-like at the apex ; spikelets ovate (l"long); upper glume 9-nerved, twice as long as the obtuse lower one. — South Florida. — Culms l£°-2° high. Racemes distant on the common rachis, £' long. •*- •»- Sterile flower oftwopalece, staminate or neutral. 4. P. gibbum, Ell. Panicle spiked, cylindrical, , 3' - 5' long ; spikelets oblong, obtuse; upper glume oval, strongly 11-nerved, tumid at the base, twice as long as the smooth fertile flower, the lower one minute ; sterile flower 3-androus ; culms branched, slender, reclining ; leaves linear-lanceolate, smooth or hairy. — Swamps, Florida to North Carolina. July - Sept. — Plant deep green. Spikelets caducous. 5. P. Curtisii. Panicle slender, spike-like (6' -8' long), the appressed lower branches remote ; spikelets ovate-lanceolate ; glumes slightly keeled, the upper 5-nerved, twice as long as the lower one, and rather shorter than the acutish flower ; sterile flower 3-androus ; culms and smooth linear-lanceolate leaves rigid ; sheaths smooth or hairy. (P. Walteri, Ell, not of Poiret nor Pursh. P. carinatum, Torr., in Curtis's Plants, Wilmington, not of Presl.) — Ponds and swamps, Florida to North Carolina. — Culms 3° - 4° high, often rooting at the lower joints. 6. P. hians, Ell. Panicle small, the few scattered and spreading branches naked below ; spikelets in small distinct clusters, ovate ; upper glume 5-nerved, 3-4 times longer than the lower ; sterile flowers neutral, longer than the perfect flower, the upper palea rigid, obovate, involute, gaping at the apex; culms slender (6' -18' high), simple; leaves linear, smooth. — Low grounds in fields and along roads, Florida to North Carolina. 7. P. gymnocarpum, Ell. Panicle large, pyramidal, the rigid expand- ing branches mostly clustered or whorled ; spikelets 3 - 6 in scattered clusters (2" long), lanceolate; glumes lanceolate-subulate, rough-keeled, 2-3 times longer than the perfect flower ; sterile flower neutral ; the lower palea as long as the lower glume, and much longer than the upper palea ; culms rigid, erect ; leaves (!' or more wide) lanceolate, cordate, smooth. — Muddy banks of rivers, Florida, Georgia, and westward. Sept. 1J. — Culms 2° - 3° high. Sheaths imbricated. 8. P. anceps, L. Panicles lateral and terminal, diffuse ; spikelets 3-10 in mostly scattered clusters, ovate-lanceolate, acute ; glumes smooth, keeled, compressed at the apex, the upper 7-nerved, twice as long as the lower one, and one third longer than the fertile flower ; culms flattened. — Var. STRICTUM. Culms strict and rigid, like the erect leaves ; panicle filiform, of few appressed branches, 2' - 3' long. — Damp sterile soil, Florida, and northward. Common and very variable. Aug. and Sept. 1J. — Plant mostly pale. Spikelets often purple. * *• Spikelets mostly by pairs, on short appressed pedicels (except Nos. 13 and 14), scattered on the ultimate branches of the usually ample open panicle. •«- Sterile flower consisting oftwopalece. 9. P. virgatum, L. Culms tall (2° - 4° high) ; branches of the large dif- fuse panicle whorled or clustered ; spikelets (1" long) on rough pedicels, ovate ; 574 GRAMINE^. (GRASS FAMILY.) glumes long-pointed, the upper 7-nerved, one third longer than the obtuse per- fect flower ; sterile flower 3-androus. — Sandy soil, Florida, and northward. Aug. and Sept. 1|. — Culms several in a cluster. Leaves smooth, flat (green), 1° or more long. Glumes purplish. 10. P. amamm, Ell. Glaucous; culms stout; branches of the slender contracted panicle smooth, appressed ; leaves long and rigid, soon convolute ; spikelets ovate-lanceolate (2" long), short-stalked ; upper glume pointed, strongly 7-nerved, one third longer than the oblong obtuse perfect flower, and equalling the 3-androus sterile flower. — Drifting sands along the coast, Florida, and north- ward. Sept. 1|. — Plant salt and bitter to the taste. 11. P. fasciculatum, Swartz. Smooth; culms erect (1° high), branch- ing; leaves membranaceous, linear-lanceolate; panicle contracted, 3' -4' long, with the mostly simple branches erect ; spikelets deep green, obovate, acute ; glumes smooth, the upper one strongly 7-nerved and reticulated, 2-3 times as long as the lower one, barely longer than the tumid rugose perfect flower; sterile flower neutral. (P. fuscorubens, Lam.) — South Florida. Oct. 1J. •»- •*- Sterile flower of one palea, neutral. 12. P. proliferum, Lam. Smooth ; culms thick and succulent, ascending, branched, geniculate ; panicles lateral and terminal, diffuse ; spikelets lanceolate- ovate, acute, somewhat crowded on the straight branches ; upper glume 7-nerved, 3-4 times as long as the lower ; perfect flower pointed. (P. geniculatum, Muhl.) — Wet places near the coast, Florida, and northward. Sept. ® — Culms 1°- 3° long. 13. P. capillare, L. Culms erect, simple or branched; leaves and sheaths hirsute ; panicles lateral and terminal, the very slender branches at length re- flexed; spikelets lanceolate-ovate, scattered on long and capillary pedicels; upper glume 5-nerved, pointed, twice as long as the lower; perfect flower obtuse. (P. strigosum, Ell. 1) — Sandy fields, Florida, and northward. Sept. Q) — Culms l°-2°high. 14. P. divergens, Muhl. Culms slender, fragile, sparingly branched; leaves subulate, rough on the upper surface and margins ; the smooth sheaths longer than the joints ; panicle diffuse, bearded at the axils ; spikelets small, spindle-shaped, solitary at the summit of very long (2' -4') and rough pedun- cles ; lower glume minute ; perfect flower lanceolate-oblong, acute, nearly as long as the upper glume and neutral palea. (P. autumnale, Bosc. ) — Dry sandy soil, South Carolina, and northward. Aug. 1|. — Culms 1° high. Leaves 2'- 4' long. 15. P. verrucosum, Muhl. Smooth; culms very slender, branched; leaves linear-lanceolate ; panicles terminal, pyramidal, the slender scattered and often simple branches spreading ; spikelets obovate, obtuse ; glumes obtuse, roughened with fine warts, the upper one at length shorter than the perfect flower, the lower minute. — Swamps, Florida, and northward. Sept. 1|. — Culms 2° - 4° long. Spikelets £" long. 16. P. angustifolium, Ell.? Culms weak, diffusely branched; leaves linear ; panicle simple, the few elongated and scattered branches bearing 2-4 GRAMINE^E. (GRASS FAMILY.) 575 oblong-obovatc acute spikelets near the summit ; glumes papillose-hispid, the upper one 5-nerved, longer than the pointed granular-roughened perfect flower ; the lower minute, obtuse. — Dry soil, Florida to South Carolina. — Culms 1°- 2° long. Spikelets l£" long. * * * Spikelets single, on a spreading pedicel, disposed in open panicles : sterile flower consisting of two unequal palea? , neutral (except No. 17) : perennials: culms at length much branched. 17. P. latifolium, L. Culms smooth, erect; leaves ovate-lanceolate, mostly smooth, the sheaths, especially at the joints, villous ; panicle nearly sim- ple; spikelets large (2" long), obovate; glumes pubescent, obtuse, the upper 2-3 times longer than the lower one ; sterile flower 3-androus. — Dry rich soil, Florida, and northward. May. — Culms l°-l£° high. Leaves and panicles 3' -4' long, the latter exserted. 18. P. clandestinum, L. Culms rigid (1° high), branched, naked at the joints ; leaves lanceolate, acuminate, the sheaths papillose-hirsute ; panicles small, lateral and terminal, more or less included in the sheaths ; spikelets ob- long, pubescent (H" long) ; lower glume half the length of the 7-nerved upper one. — Dry sterile soil, North Carolina, and northward. Sept. 1J. — Varies with the sheaths smooth, or merely pubescent, and the terminal panicle some- times exserted. 19. P. SCOparium, L. Hairy or woolly all over, except the upper sur- face of the somewhat rigid lanceolate leaves ; culms stout (1°- 1£° high), mostly simple ; panicle terminal, exserted ; spikelets obovate (l£" long), obtuse, pubes- cent ; upper glume 9-nerved, three times the length of the lower one ; sterile flower neutral. — Open woods and margins of fields, in dry soil, Florida to North Carolina. May. 20. P. pauciflorum, Ell. "Panicle expanding, few-flowered; flowers very large ; leaves narrow-lanceolate, ciliate at the base ; sheaths hairy." Ell. — In close damp soils, Georgia, Elliott. May. — Culm 12' -18' high, roughish and branching at the joints. Leaves 3' - 4' long, 3" - 4" wide, smooth above. Spikelcts oval, the lower glume very small. Resembles P. scoparium in fruit, and P. villosum somewhat in habit. ( *) 21. P. divaricatum, L. Shrubby, smooth; culms reclining, with short and spreading branches ; leaves lanceolate, faintly nerved, deciduous from the persistent sheaths ; panicles small, simple, few-flowered, terminating the branches ; spikelets (2" long) obovate, tumid, nodding ; glumes smooth, many-nerved, and, like the lower palea of the sterile flower, tipped with a tuft of down ; palea; of the sterile flower nearly equal. — South Florida, Dr. Blodgett. — Leaves l£' - 2' long. Branches of the panicle short and diverging. 22. P. viscidum, Ell. Soft-hairy or downy all over, except a narrow ring below each joint of the culm ; leaves lanceolate ; sheaths viscid ; panicle (4' -6' long) compound, diffuse; spikelets (1" long) ovate, pubescent; upper glume 9-nerved, many times longer than the minute lower one. — Varies with the leaves, sheaths, and purple spikelets smooth. — Wet swamps and bogs, near the 576 GRAMINE^E. (GRASS FAMILY.) coast, Florida, and northward. May. — Culms 3° - 4° high, soon much branched. Leaves 6'- 10' long. Branches of the panicle smooth. — In the smooth form of this species I notice a remarkable deviation from the generic character. The two glumes and lower palea of the sterile flower are as usual in the genus, while the upper palea of the latter is developed into an apparently perfect flower, in all respects similar to the upper one. 23. P. scabriusculum, Ell. Culm (3° -4° long), sheaths, and lower surface of the linear-lanceolate leaves rough and more or less pubescent ; panicle ample, compound, diffuse, pubescent below, the divisions smooth ; spikelets small, ovate, rough, but not pubescent ; upper glume 9-nerved, the lower minute. — Pine-barren swamps, Florida to North Carolina. May. — Probably a form of the last. 24. P. microcarpon, Muhl. Culm and leaves smooth ; the latter lance- olate, tapering from a broad cordate base, strongly nerved, fringed on the mar- gins near the base ; panicle compound, diffuse ; spikelets very numerous, small (£" long), oval, pubescent; upper glume 5-nerved, 3 times the length of the mi- nute lower one. (P. multiflorum, Ell, not of Poir. P. ovale, Ell. ?) — Dry soil, South Carolina, and northward. May. — Culms 2° - 2£° high. Leaves 4' - 6' long, 8" -10" wide. 25. P. dichotomum, L. Culms at length much branched; panicle nearly simple, few-flowered ; leaves linear-lanceolate, bearded at the base, or vil- lous all over. (P. villosum, Ell.) — Var. 1. Panicles compound, diffuse; spikelets small ; leaves linear-lanceolate, and, like culm, sheaths, and panicle, soft hairy (P. lanuginosum, Ell.), or only at the joints of the culm (P. barbula- tum, Michx.), or smooth throughout (P. nitidum, Ell., spikelets purple and very minute). — Var. 2. Culms weak; panicle loose, compound ; sheaths and pale-green thin leaves soft hairy (P. pubescens, Ell.), or the margins of the otherwise smooth leaves fringed with long hairs (P. ciliatum, Ell.). — Var. 3. Culms (2° high) smooth ; leaves large (6' -8' long), lanceolate, rough or downy above, margins near the base and sheaths fringed ; panicle large, diffuse ; spike- lets (1" long) oblong, nearly smooth. (P. nervosum, Ell. ?) — Var. ? 4. CulmJ smooth and rigid (1° - 1^° high) ; leaves pale, rigid, lanceolate, fringed ; panicle oblong, diffuse ; spikelets minute, oval, very hairy. (P. spha;rocarpon, Ell.) — Woods, fields, and swamps, everywhere, in some one of its numerous forms. March - May. 26. P. depauperatum, Muhl. Culms low (2' -12' high), simple, erect, like the linear leaves ; panicle simple, few-flowered, with the branches erect, often shorter than the subtending leaf; spikelets oval-obovate (1" long), mostly acute ; upper glume 9-nerved, smoothish, three times the length of the ovate lower one. (P. strictum, Pursh.) — Dry sandy soil, North Carolina, and northward. June. — Leaves rigid, 2' - 6' long, smoothish or hairy. 27. P. melicarium, Michx. " Culm weak ; leaves narrow ; panicle con- tracted ; glumes membranaceous, lanceolate, nearly equal ; rudiment of a flower stalked. — In Carolina and Georgia. Very smooth. Leaves long. Panicle slender, long, with few branches." Michx. ( * ) GRAMINE^E. (GRASS FAMILY.) 577 § 3. AULAX ANT HITS. — Spikelets awnless, single, loosely racemose on the erect branches of the compound contracted panicle : lower glume wanting, the upper one 5-ribbed, very hairy: perennials. 28. P. ignoratum, Kunth. Culms erect, simple, smooth ; leaves linear- lanceolate, pungent, strongly nerved, fringed on the margins, the lower ones widely spreading ; panicle racemose ; spikelets obovate ; sterile flower 3-androus ; anthers and stigmas yellow. ( Aulaxanthus ciliatus, Ell.) — Dry gravelly soil, Florida to North Carolina* July and Aug. — Culms 2° - 3° high. Leaves and spikelets pale. 29. P. rufum, Kunth. Leaves erect, linear, smooth, elongated ; sterile flower neutral ; anthers and stigmas purple ; otherwise like the preceding. (Au- laxanthus rufus, Eli.) — Pine-barren swamps, Florida to North Carolina. Sept. — Leaves and spikelets purplish. § 4. ECHINOCHLOA. — Spikelets crowded on one side of the racemed or pani- cled spikes: glumes and lower palea of the sterile flower hispid-pointed or awned. 30. P. Crus-galli, L. Culm stout (2° -4° high), branching; leaves very long, broadly linear, rough; sheaths smooth, rough, or hispid; spikes (l'-2' long) very numerous, crowded in a long raceme ; spikelets clustered ; glumes and lower palea of the sterile flower strongly hispid on the nerves, awn-pointed or long-awned ; fertile flower rough-pointed. — Wet places, Florida, and north- ward. Aug. and Sept. (1) — Awns pale or purple. 31. P. Walter!, Ell. Culms (l°-2° high) branching; leaves linear, smooth, like the sheaths; spikes 5-12, distant, erect or appressed (£'-!' long), bearded at the base ; spikelets in 3 rows, awnless ; glumes and lower palea his- pid on the nerves, pointed; fertile flower barely pointed ; rachis rough. — Damp soil, Florida to North Carolina. July- Sept. ® — Spikelets purplish. 32. P. ? molle, Michx. " Spikes panicled, alternate, expanding, flower- ing on one side ; spikelets approximate, pedicillate, on one side, awnless," Ell. — Sea islands of South Carolina, Elliott. Aug. and Sept. 1J. — Culm 4° - 6° high, smooth below, downy above. Leaves 12' -18' long, smooth, fringed at the throat. Spikelets 2-3 together on a villous rachis, hairy. Plant salt and bitter. § 5. ORTHOPOGON. — Panicle simple, spiked: spikes few-flowered, distant: t/lumes equal, Jiairy, the lower one long-awned: upper and lower palece of the sterile Jlower short-awned. 33. P. hirtellum, L. Culms slender, ascending from a creeping base; leaves (l'-2'long) ovate-lanceolate, thin; sheaths hairy; spikes about 5, dis- tant, 5-8-flowered; awns (often purple) clammy. — Shady woods, Florida to North Carolina. Aug. and Sept. 1|. — Culms 1° - 2° long, branched, the erect portion 6' -12' high. 60. SETARIA, Beauv. Erect annual grasses, with flat leaves and the spikelets of Panicum proper, but crowded in cylindrical spike-like panicles ; the short pedicels bearing one or more bristles, which usually exceed the spikelets. 49 578 GRAMINEJS. (GRASS FAMILY.) * Bristles roughened downward. 1. S. verticillata, Beauv. Culrns sparingly branched; leaves linear- lanceolate, rough above ; spike cylindrical, compact, somewhat interrupted be- low (2' -3' long) ; bristles short, single or by pairs. — Around dwellings, North Carolina, and northward. Introduced. — Culm. 2° high. * * Bristles roughened upward. 2. S. glauca, Beauv. Culms smooth, slightly compressed ; leaves linear- lanceolate, rough above; spike nearly simple, cylindrical; bristles 6-10, in 2 clusters, longer than the spikelets ; perfect flower transversely wrinkled. — Var. L^EVIGATUM (Panicum laevigatum, Ell.} has a more flattened culm, longer, nar- rower and smooth leaves, and the perfect flower obscurely wrinkled. — Culti- vated ground, the var. in damp soil along the coast, Florida to North Carolina. — Culms 1° -3° high. Spikes 2' -3' long, pale or purplish. 3. S. viridis, Beauv. Culms smooth, terete ; leaves lanceolate or linear- lanceolate, rough ; spikes compound, cylindrical, dense ; bristles 1 - 3 to each spikelet ; perfect flower finely striate and dotted lengthwise. — Around dwell- ings. Introduced. June - Sept. — Culms 1° - 2° high. Spikes 1' - 2' long. 4. S. COrrugata, Schult. Culms, narrow (2" wide) leaves, and sheaths rough; spikes compound, cylindrical, dense, erect or bending; spikelets 6-10 in a cluster; bristles one to each spikelet, elongated; perfect flower obtuse, strongly wrinkled. (Panicum corrugatum, Ell.) — Dry soil, Florida and Georgia. July and Aug. — Culms 2° - 3° high. Spikes 3' - 6' long, purple. 5. S. composita, Kunth. Culms smooth; leaves linear-lanceolate, the fringed sheaths rough-hairy at the throat; spikes loose, compound, the lower clusters scattered ; bristles single or by pairs, many times longer than the spike- lets ; perfect flower acute, with faint transverse lines. — Dry sandy soil along the west coast of Florida, Apalachicola to Key West. June -Aug. — Culms 20-40 10^ Leaves 1° or more long. Spikes 6'- 12' long. 6. S. Italica, Kunth. Culms tall (4° -8° high), smooth, branched; leaves (£'-!' wide) very rough; spikes compound (6' -18' long), cylindrical, dense, the lower clusters scattered ; bristles 1 - 2 to each spikelet, elongated ; fertile flower smooth and even. — Swamps along the coast, Florida to North Carolina. July -Sept. — This, and Penicillaria spicata, Willd., are commonly cultivated, under the name of MILLET, as green food for cattle. The latter seems to be the Panicum cenchroides, Ell. 51. CENCHRUS, L. COCK-SPUR. Prostrate or creeping grasses, with the spikelets of Panicum proper, but en- closed, 1 - several together, in spiny or bristly, at length indurated and decid- uous involucres ; the latter burr-like, and arranged in a terminal spike. Stamens 3. Styles united below. 1. C. echinatus, L. Spikes cylindrical, composed of 20 or more globular involucres (3' -4' long) ; involucre downy, spiny above, and with a row of rigid barbed bristles above the base, 3 - 5-flowered ; culms ascending. — Fields and GRAMINE^E. (GRASS FAMILY.) 579 waste grounds, Florida to North Carolina. July -Sept (D — Culms 1°- 2° long. Involucre purplish. 2. C. tribuloides, L. Involucres whitish, 10-15 in a spike, wedge-shaped at the base, armed above with stout compressed broadly subulate erect or spread- ing spines ; bristles none ; spikelets mostly by pairs. — Sands along the coast, Florida, and north ward. July -Oct. Q) — Culms prostrate, 1°- 2° long. Leaves, linear. Spikes 1'- 2' long. 52. STENOTAPHRUM, Trin. A creeping and branching grass, with the awnless spikelets sunk in excavations of the continuous flattened rachis. Spikelets by pairs, one pedicelled and imper- fect, the other sessile, and with the structure of Panicum. 1. S. Americanum, Schrank. (Rottbcellia dimidiata, Ell.) — Damp sandy places along the coast, Florida to South Carolina. June - Sept. 1J. — Smooth throughout. Culms flattened, creeping, the branches nearly opposite ; flowering culms erect, 6'- 12' high. Leaves 2/ -6' long, linear, obtuse, flat or folded, contracted at the base. Spikes lateral and terminal, peduncled, 2' - 5' long. Sterile spikelet neutral or rudimentary. Fertile spikelet sessile; the up- per glume 7-nerved, 3 times the length of the lower one. Palea of the sterile flower coriaceous, like those of the perfect one. 53. ROTTBCELLIA, Brown. Erect perennial mostly tall grasses, with flat or channelled leaves and spiked inflorescence. Spikes nearly terete, jointed. Spikelets awnless, borne by pairs at the base of each joint ; one imperfect, on a coriaceous and closely appressed ped- icel ; the other sessile, embedded in an excavation of the joint, 2-flowered. Glumes 2, the exterior one flat, coriaceous, with a hinge-like depression at the base, the interior boat-shaped, membranaceous. Palete hyaline, 1 -2 in the staminate or neutral lower flower, and 2 in the upper and perfect flower. Stamens 3. Styles 2. Grain compressed, free. — Spikes solitary on lateral and terminal peduncles or branches. 1. R. rugosa, Nutt. Culms compressed ; peduncles or branches clustered, short, included in the sheaths of the elongated upper leaves ; spikes spreading, slightly compressed; sessile spikelet shorter than the joint; lower glume lance- olate, transversely rugose ; sterile flower neutral. — Pine-barren swamps and ponds, Florida to North Carolina. Sept. — Culms 2° -4° high. Spikes green, l£'-2' long, 1" in diameter. 2. R. corrugata, Baldw. ? Culm stout, compressed; peduncles mostly single, elongated ; spikes slightly compressed, erect ; spikelets longer than the joint ; lower glume longitudinally grooved and somewhat reticulated, ovate ; sterile flower staminate. — Low pine barrens, Georgia and Florida, near the coast. Sept. and Oct. — Culm 2° -4° high. Spikes 4' -6' long, 2" in diam- eter, purplish. 3. R. cylindrica. Cuhn slender, terete ; leaves narrowly linear ; peduncles single, elongated; spikes slender, terete, mostly curved; spikelets as long as 580 GRAMINE^E. (GRASS FAMILY.) the joint ; lower glume ovate, obtuse, obscurely pitted in lines ; sterile spikelet rudimentary. (Tripsacum cylindricum, Michx.) — Dry sandy soil, Florida. July - Sept. — Culms 1° - 2° high. Spikes 2' - 6' long, 1 " in diameter, purplish. 54. MANISURIS, L. Annual grasses, with branching culms, flat leaves, and spiked inflorescence. Spikes lateral and terminal, clustered, jointed, the short peduncles enclosed in spathe-like sheaths. Spikelets 1 -flowered, placed one at each end of the joints of the spike ; the upper neutral, compressed, of two nearly equal hispid mem- branaceous glumes ; the lower perfect, globose. Glumes coriaceous, concave, the lower reticulated, the upper smooth. Paleae 2, hyaline. Stamens 3. Grain included. 1 . M. granularis, Swartz. Leaves linear-lanceolate, and, like the sheaths, hairy; spikes 6" -10" long; spikelets minute, turning black. — Fields and pas- tures, Florida to South Carolina. Aug. and Sept. Introduced. — Culms 1°- 2° high. 55. TRIPSACUM, L. GAMA-GRASS. A tall perennial grass, with solid culms, broad and flat leaves, and spiked inflorescence. Spikelets awnless, monoecious, in jointed spikes, the upper ones staminate, the lower fertile, 2-flowered. Staminate flowers by pairs on each short triangular joint of the slender rachis, 3-androus ; glumes 2, coriaceous ; paleae hyaline. Pistillate spikelets single, embedded in a deep excavation of the thick and polished joints ; the outer glume cartilaginous, concave, the inner membranaceous, boat-shaped ; lower flower neutral, the upper pistillate, both with hyaline paleae. Anthers opening by terminal pores. Stigmas elongated. Grain free. I. T. dactyloid.es, L. — Rich soil, Florida, and northward. Aug. and Sept. — Culms erect, from tufted creeping rootstocks, 3°-5P high. Leaves 1' wide. Spikes 4' - 8' long, on long lateral and terminal peduncles, 2 - 4 in a cluster or sometimes solitary. (T. monostachyum, Willd.) 56. ANDROPOGON, L. BROOM-GRASS. Coarse perennial grasses, with branching erect culms, long and harsh leaves, and spiked inflorescence. Spikes lateral and terminal, jointed. Spikelets by pairs on each joint of the slender commonly hairy or plumose rachis ; one of them pedicelled and staminate, neutral, or rudimentary ; the other sessile, 2- flowered, the lower flower consisting of one palea, and neutral ; the upper of 2 paleae, mostly perfect, shorter than the herbaceous or chartaceous glumes, the lower one mostly awned at the apex (except No. 1). Stamens 1-3. Grain free. § 1. ANDROPOGON PROPER. — Upper flower perfect. * Peduncle solitary, bearing a single spike. 1. A. ETuttallii. Culms (3° -4° high) straight, smooth, like the long linear leaves ; spikes rigid, long-peduncled, the rachis and pedicel of the sterile GRAMINE^E. (GRASS FAMILY.) 581 flower fringed with closely appressed white hairs ; spikelets awnlcss ; glumes hispid above ; sterile flower of 2 palea?, 3-androus. (Rottboellia ciliata, Nutt.) — Low pine barrens, Florida and the lower districts of Georgia. Sept. — Spikes 3' - 6' long. 2. A. oligostachyus. Culms rigid, erect ; leaves linear, smooth, glau- cous ; spikes 3 - 4, on short mostly included peduncles, hoary with short spread- ing hairs ; lower glume pubescent, £- J as long as the contorted awn; sterile flower neutral, short-awned. — Dry sand-ridges, Middle Florida. Aug. and Sept. — Culm 2° - 3° high. Spikes 2' - 3' long. 3. A. tener, Kunth. Culms filiform, like the smooth soon involute leaves ; spikes terete, with the joints bearded at the base, otherwise smooth ; spikelets ap- pressed, half as long as the bent awn ; glumes rough above ; upper palea minute ; pedicel of the awnless neutral flower bearded at the apex. — Dry grassy pine barrens, Georgia, Florida, and northward. Sept. — Culms 2° -3° long. Spikes slender, 1'- 2' long. Upper leaves short, bearded at the throat. * * Peduncles clustered, each bearing a single spike. 4. A. SCOparius, Michx. Leaves smooth or rough-hairy ; spikes numer- ous, on exserted peduncles, the slender flexuous rachis, and pedicel of the awned or awnless staminate or neutral sterile flower fringed with spreading hairs ; per- fect flower half as long as the awn, the glumes often roughened with elevated points. — Dry sterile soil, Florida, and northward. Aug. and Sept. — Culms 2° - 3° high. Spikes 1 ' - 2' long. =fc # * Peduncles or branches mostly clustered, bearing 2-4 rigid (qreen) digitate spikes : rachis and pedicel of the triandrous awnless sterile flower fringed with scattered hairs, and short-bearded at the base. 5. A. furcatus, Muhl. Culm stout, rigid, 3° -5° high; leaves rough, fringed at the base ; peduncles or branches commonly several at each upper joint ; spikelets appressed ; glumes hispid on the nerves, half as long as the bent awn. — Open woods and margins of fields, Florida, and northward. Sept. — Spikes compressed, 2' -3' long. * # =fc # Peduncles or branches 1 —several from each upper joint, often included in the dilated sheaths : spikelets slender, hoary with long silky spreading hairs : sterile flower reduced to an awn-like glume at the apex of the very slender pedicel, or obsolete: stamen 1. 6. A. tetrastachyus, Ell. Culms 3° -4° high; leaves and sheaths very hairy ; branches short, the lower ones by pairs, the upper single ; spikes 4 ; glumes bristly-serrulate, one fourth as long as the straight awn ; pedicel of the awn-like sterile flower barely exceeding the fertile flower. — Var. DISTACHYUS. Leaves and sheaths less hairy or smoothish ; spikes by pairs, more rigid, on long-exserted branches ; pedicel of the sterile flower much longer than the smoother glumes. — Low pine barrens, Florida to North Carolina. Sept. 7. A. Elliottii. Culms l°-2° high, bearded at the upper joints; leaves purplish, narrow, hairy at the base ; sheaths hairy, the upper ones inflated and often crowded or imbricated ; branches single or by pairs ; spikes by pairs (rarely 49* 582 GRAMINE^E. (GRASS FAMILY.) 3-4), exsertcd, or included in the upper sheaths; awn 3-4 times the length of the glumes ; hairs of the very slender rachis long and glossy. (A. argenteus, Ell., not of DC.) — Wet or dry pine barrens, Florida to North Carolina. Sept and Oct. — Somewhat variable, but distinguished by the dilated clustered sheaths, and by the silvery hairs of the spikes. 8. A. Virginicus, L. Culms mostly tall, erect or bending, with the joints remote and bearded ; branches 1 - 2 from the upper dilated sheaths, compound and forming a long and loose panicle; spikes by pairs (rarely by fours), shorter than the sheaths ; awn straight, four times the length of the glumes ; sterile flower none. (A. vaginatus, Ell., the short branches or peduncles included in the more inflated sheaths. A. dissitiflorus, Michx. 1 A. gracilis, Carpenter, the spikes borne at the summit of elongated simple branches.^) — Barren soil, Florida to Mississippi, and northward. Sept. and Oct. 9. A. macrOUTUS, Michx. Spikes by pairs, exceedingly numerous, crowd- ed in a large and close panicle ; awns 3-4 times the length of the glumes ; sterile flower an awn-like glume. — Varies with the whole plant glaucous and more slender, branches and spikes more scattered. — Low barren soils, Florida, and northward. Sept. — Culms 2° - 5° high. 10. A. ternarius, Michx. "Branches remote, alternate, solitary, simple, bearing mostly three distant alternate 2-cleft spikes ; hairs of the involucre shorter than the glume; flowers 3-androus; paleae somewhat villous; awn long, con- torted." Michx. In Carolina. (*) § 2. HETEROPOGON. — Uppers/lower staminate or pistillate. 11. A. melanocarpUS, Ell. Culms tall (4° - 8° high) paniclcd above; leaves elongated ; spikes numerous, approximate, 1 -sided, shorter than their slender filiform-pointed sheaths ; spikelets large, the two lowest pairs glume-like, persistent, sterile, the others deciduous ; sterile flower 3-androus, with the lower glume lanceolate, membranaceous, twisted, much longer than the fertile spikelet and the smooth and short pedicel ; fertile spikelet rusty bearded ; the coriaceous glumes obtuse, many times shorter than the very long (4') contorted and hairy awn. — Indian old fields, Florida and Georgia. Introduced? — Glume of the sterile spikelet, like the sheaths, rugose on the back. Perhaps identical with A. polystachyus, Roxb. 57. ERIANTHUS, Michx. Tall reed-like grasses, with long and flat leaves, and panicled inflorescence. Spikelets by pairs on the slender branches, alike, one pedicelled, the other ses- sile, both with a hairy involucre at the base. Lower flower of one palea, neutral ; the upper of two paleae, perfect, shorter than the membranaceous nearly equal glumes, the lower one awned. Stamens 2-3. 1. E. alopecuroides, Ell. Culms 4° -10° high; sheaths of the broad (6" - 12") very rough leaves woolly above, rough below ; panicle (1° - 2° long) woolly, expanding, pyramidal; hairs of the involucre copious, twice as long as the sparsely hairy glumes ; awn straight. — Var. CONTORTUS. (E. contortus, Ell.) GRAMINEJS. (GRASS FAMILY.) 583 Smaller (20-4°high) ; leaves and sheaths smooth; panicle (6'-12'long) oblong; awns short and twisted. — Var. BREVIBARBIS. (E. brevibarbis, Michx.) Smooth or nearly so; rachis of the oblong panicle rough (not woolly) ; hairs of the in- volucre shorter than the glumes. — Dry or wet soil, Florida to North Carolina. Sept. and Oct. 2. E. Strictus, Baldw. Culms, leaves, and sheaths smooth or slightly roughened; panicle (10' -15' long) spiked; involucre very short or none; glumes rough ; awns straight. — River-banks, Florida and the lower districts of Georgia, and westward. Sept. — Culms 4° -8° high. Leaves 3" -6" wide. Spikelets twice the size of the preceding. 58. SORGHUM, Pers. Spikelets 2-3 together on the slender branches of the loose panicle ; the lat- eral ones sterile or a mere pedicel ; thfe middle or terminal one fertile. Glumes coriaceous or indurated, closely bearded, sometimes awnless. Otherwise like Andropogon. 1 . S. avenaceum. Panicle erect ; glumes yellowish, lanceolate, the lower one hairy ; one palea to each flower, linear, ciliate ; awn rough, slender, twice as long as the glumes ; sterile flowers reduced to one or two slender hairy pedicels. (Andropogon avenaceus, Michx. A. ciliatus, Ell.) — Dry sandy soil, Florida to North Carolina. Sept. 1J. — Culms (2° - 4° high) and leaves smooth. Panicle oblong, 6' - 12' long. 2. S. nutans, Gray. Panicle long and narrow, nodding ; glumes dark brown, the upper sparingly, the lower densely hairy ; palese of the upper flower 2, unequal ; awn 4 times the length of the glumes, bent in the middle, rough above, twisted and hairy below ; sterile spikelets mostly rudiments. (A. nutans, L.) — Dry barren soil, Florida and northward. Sept. ]|. — Culms 2° - 4° high. Panicle 1° - 2° long. 3. S. secundum. Panicle erect, contracted, 1-sided ; spikelets nodding ; glumes light brown, very hairy all over ; otherwise like the last, and probably a variety of it. (Andropogon secundus, Ell.) — Dry sand-ridges in the pine bar- rens, Georgia and Florida. Sept. and Oct. — Culms 2° - 3° high. S. VULGARE, Pers., is the DURRA CORN; S. SACCHARATUM, the BROOM CORN; S. CERNUDM, Willd., the GUINEA CORN. S. HALAPENSE, Pers., is sometimes cultivated under the name of CUBA GRASS. 59. LUZIOLA, Juss. Perennial aquatic or marsh grasses, with narrow elongated leaves, and pan- icled monoecious flowers ; the pistillate and smaller staminate spikelets borne on separate panicles. — Spikelets scattered, on jointed pedicels, nearly terete, 1-flowered. Glumes none. Paleaj 2, nearly equal, membranaceous, concave, obtuse, strongly nerved. Squamulae 2. Stamens 5-11 : anthers linear, 2-lobed at the base, much longer than the short filaments. Styles 2, short : stigmas plumose. Grain free, ovoid. Pericarp crustaceous. 584 GRAMINE^:. (GRASS FAMILY.) 1. L. AlabamensiS, n. sp. Smooth throughout ; culms low (4'- 6' high), simple, jointed near the base ; leaves mostly two ; the lowest one 3-4 times the length of the culm ; the elongated purple sheath enclosing the short membrana- ceous upper one, and the stalk of the simple few-flowered panicle ; spikelets pale, ovate-lanceolate, shorter than the erect or appressed capillary pedicels ; the staminate and pistillate ones borne on separate culms ; paleae of staminate spikelet lanceolate, 7 -nerved ; those of the pistillate ovate-lanceolate, 11-13- nerved, much longer than the smooth grain. — Brooklyn, Conecuh County, Alabama, J. F. Beaumont. 60. MONANTHOCHLOE, Engelm. A low maritime branching grass, with very short rigid crowded leaves, and dioecious flowers in solitary terminal sessile spikes. Glumes none. — Spikes short, 3 - 5-flowered ; the lowest flower, or the two lower ones, neutral, of 1 -2 paleae ; the uppermost abortive ; the intermediate ones, composed of two paleae, triandrous in the staminate, digynous in the pistillate spike. Paleae convolute, scarious arid obtuse at the apex; the lower one rigid, ovate-lanceolate, 9-12- nerved above ; the upper rather longer, 2-keeled or 2-winged on the back. Squamulse none. Anthers longer than the short filaments, 2-lobed at each end. Ovary lanceolate-linear, 3-angled. Styles 2 : stigmas elongated, plumose with simple hairs. Grain 3-angled, free. 1. M. littoralis, Engelm. — Low sandy shores, South Florida, and west- ward. — Culms much branched, 5' - 8' high, smooth and somewhat woody, erect, or at length prostrate and rooting. Leaves 3" long, very rigid, ob- tuse, many-nerved, rough on the margins, mostly crowded at the summit of the short branches, and enclosing the short (3 "-4") sessile spikes. Flowers pedicelled. FILICES. (FERNS.) 585 SERIES II. CRYPTOGAMOUS OR FLOWERLESS PLANTS. VEGETABLES destitute of proper flowers, and producing, in. the place of seeds, minute homogeneous bodies (spores) containing no embryo. CLASS m. ACROGENS. Plants with a distinct stem, growing from the apex only, containing woody fibre and vessels. ORDER 161. EQUISETACE^E. (HORSETAIL FAMILY.) Comprises only the genus 1. EQUISETUM, L. SCOUKING RUSH. Fructification terminal, spiked or cone-like. Spore-cases (sporangia) 6-7, borne on the lower surface of the peltate scales, 1-celled, opening on the inner side. Spores loose, furnished at the base with 4 club-shaped elastic filaments (elaters). — Stems leafless, grooved, hollow and jointed, bearing at the closed joints a toothed sheath. 1. E. Isevigatum, Braun. Stems perennial, mostly simple, the obtuse ridges smooth, or roughened with minute tubercles ; sheaths appressed, with numerous bristle-like caducous black teeth. — Stiff clay soil, North Carolina, and northward. — Stem l£° - 4° high. ORDER 162. FILICES. (FERNS.*) Leafy plants, mostly with perennial rootstocks (caudex), which in this climate are creeping and slender, or stouter and sometimes ascending, but in the tropics often grow many feet high, with a diameter of several inches, giving the plants an arborescent appearance (Tree-ferns). Leaves (fronds) circinately rolled up in vernation (except the last Suborder), and raised on a stalk or petiole (stipe). Spore-cases (sporangia) one- * By DANIEL C. EATOX. 586 FILICES. (FERNS.) celled, borne on the under side of the fronds or along their margins, often covered by a membrane of various shape (indusium or involucre), contain- ing numerous exceedingly minute spores. Synopsis. SUBORDER I. POLYPODINE^E. Sporangia collected in dots, lines, or variously shaped clusters (sori or fruit-dots), or in indefinite masses, cellular-reticulated, mostly pedicelled ; the stalk running into a vertical incomplete elastic ring, the straightening of which ruptures the ripe sporangium on the inner side, discharging the spores. — Fronds simple or variously divided. TRIBE I. ACROSTICHEJE. — Sporangia collected in large or indefinite masses on the back of the frond : indusium none. 1. ACROSTICHUM. Sporangia covering the lower surface of the upper pinnae. Veins retic- ulated. TRIBE II. POI/ITPODIE.3E. — Fruit-dots roundish, distinct, destitute of indusium, borne on the back of the frond. 2. POLYPODIUM. Fruit-dots scattered variously on the back of the frond, borne at or near the ends of the veins. TRIBE III. — VITTARIE.3E. — Sporangia borne in a continuous elongated marginal or sub-marginal furrow. 3. V1TTARIA. Fronds sun pie, narrowly linear. TRIBE IV. PTERIDEJE. — Fruit-dots marginal, separate or continuous. Indusium formed by the reflexed margin of the frond or its lobes, opening toward the midrib. * Indusium thin and membranaceous, continuous around the margin of the fertile pinnae. 4. PTERIS. Sporangia borne on a transverse intramarginal veinlet. 5. PELLJEA. Sporangia borne on the ends of the veins, at length confluent. * * Indusium rarely continuous, mostly formed of the reflexed ends of the lobes or divisions of the pinnae or pinnules. 6. CHEILANTHES. Sporangia borne on the veins beneath the reflexed margin of the frond. Pinnules with a midrib. 7. ADIANTUM. Sporangia borne on the under side of the indusium. Midrib none or eccentric. TRIBE V. BIjECHHTEJE. — Fruit-dots dorsal, linear or oblong, borne on transverse veins parallel to the midrib. Indusium fixed by its outer margin, and opening at the inner one. 8. BLECHNUM. Fruit-dots linear, elongated, covered by a continuous indusium. 9. WOODWARDIA Fruit-dots linear-oblong, in a series near the midrib, covered by sep- arate indusia. TRIBE VI. A SPLENIEJE. —Fruit-dots dorsal, linear or oblong, oblique or at right angles to the midrib. Indusium fixed by one margin to the veinlet, opening at the other. 10. CAMPTOSORUS. Fruit-dots straight or curved, scattered irregularly on the more or less reticulated veins, or facing each other in pairs. Frond simple. 11. ASPLENIUM. Fruit-dots oblique, on the upper side of the veins, rarely on both sides of them. Veins free. FILICES. (PERNS.) 587 THIBE VII. ASPIDIE^E. — Fruit-dots at or below the ends of the reins, round, or somewhat oblong and then placed across the vein. Indusium round or nearly so, fixed in the middle and opening at the margin, or reniform and fixed at the sinus. * Fertile and sterile fronds alike. 12. CYSTOPTERIS. Indusium on the back of the veinlet, hood-shaped, fixed at the base partly under the fruit-dot, opening toward the apex of the segment. 13. ASPIDIUM. Indusium mostly on the back of the veins, orbicular or round-renifonn, fixed in the middle or at the sinus, opening all round the margin. 14. NEPHKOLEPIS. Indusium at the end of a free vein, reniform, fixed at the sinus or by the arcuate base, opening toward the margin of the frond. * * Fertile and sterile fronds different. 15. ONOCLEA. Fertile fronds contracted, the divisions rolled up and berry-like. TRIBE VlII. \VOODSIEJE. — Fruit-dots round, borne on the back of a free vein. In- dusium fixed beneath the fruit-dot, saucer-shaped, or globose and bursting at the top. 16. "WOODSIA. Indusium divided into irregular lobes, or a capillary fringe. TRIBE IX. DICKSONIEJE. — Fruit-dots marginal, roundish, borne at the ends of the free veins. Indusium cup-shaped or two-valved, its outer part composed of a reflexed lobe of the frond, or more or less united with it. 17. DICKSONIA. Indusium (in our species) small, nearly globular, membranaceous. SUBORDER II. HYMENOPHYLLE2E. Sporangia borne on a scti- form or slender receptacle, cellular-reticulated, surrounded by a complete transverse ring. Involucres marginal, at the ends of the veins, cup-shaped or two-valved. Fronds delicately membranaceous and pellucid. 18. TRICHOMANES. Involucre cup-shaped or funnel-shaped, sometimes 2-lipped. SUBORDER III. SCHIZ^ZEINEjE. Sporangia large, borne on narrow segments of the frond, oval, cellular-reticulated, crowned by the converg- ing striae of a complete apical ring, opening longitudinally. 19. LYGODIUM. Sporangia attached laterally in two rows to the narrow divisions of the pinnse, each one covered by a scale-like indusium. 20. ANEIMIA. Sporangia attached by their bases to the narrow divisions of the panicled fertile branches of the frond. Indusium none. SUBORDER IV. OSMUNDINE^E. Sporangia large, nearly sessile on the back or margins of the mostly contracted fertile fronds, two- valved, opening vertically at the apex. King rudimentary or none. 21. OSMUNDA. Sporangia globular, covering the contracted fronds or portions of fronds. SUBORDER V. OPHIOGLOSSE^E. Sporangia very large, sessile, spiked or panicled, coriaceous, not reticulated, on narrow divisions of the frond, destitute of a ring, transversely two-valved. Fronds not circinate in vernation. 22. BOTRYClirUM. Sporangia in panicled spikes. Sterile part of the frond pinnately di- vided. 23. OPHIOGLOSSUM. Sporangia in a simple spike. Sterile part of the frond simple in our species. 588 FILICES. (FERNS.) 1. ACROSTICHUM, L. Sporangia entirely covering the lower surface of the upper pinnae. Veins finely reticulated with oblong hexagonal meshes. — Tall Ferns, with pinnate fronds. 1. A. aureum, L. Fronds coriaceous; pinnae short-stalked, lanceolate- oblong, entire. — Coast of South Florida. — Fronds 4° - 8° high, dark green, shining. 2. POLYPODIUM, L. POLYPODY. Fruit-dots round, naked, mostly at the ends of the free or reticulated veins. — Rootstocks creeping. Sterile and fertile fronds alike. § 1. POLYPODIUM PROPER. - Veins free. 1. P. vulgare, L. Fronds evergreen, smooth on both sides, oblong, simply and deeply pinnatifid; the divisions linear-oblong, obtuse, slightly toothed ; fruit-dots large. — Mossy rocks, &c., in shady woods, in the upper districts of Alabama, and northward. — Fronds 4' - 10' high. 2. P. Plumula, "Willd. Fronds linear-lanceolate, narrowed at both ends, pinnatifid t0 the black and somewhat chaffy midrib ; the divisions very numer- ous, narrowly linear, entire, wider at the base ; fruit-dots small. — Tampa Bay, Dr. Leavenworth. — 'Fronfa 12' -18' high, 18" -24" wide. 3. P. hexagonopterum, Michx. Fronds annual, broadly triangular, bipinnatifid ; pinnae lanceolate, acuminate, spreading, the lower pair erect ; pin- nules oblong, mostly obtuse, crenately toothed or entire; fruit-dots numerous, minute. — Shady woods, Florida to Mississippi, westward and northward. — A foot or more high from an elongated creeping rootstock. Pinnae decurrent, forming irregular hexagonal wings on the rachis. § 2. MARGIN ARIA, Bory. — Veins obscure, sometimes reticulating near the margin. Stipe and lower surface of the frond covered with chaffy scales. 4. P. incamim, Swartz. Fronds evergreen, coriaceous, beneath thickly beset with peltate chaffy scales, smooth and green above, pinnately parted ; the divisions oblong, obtuse, entire ; fruit-dots near the margin. — On trunks of trees, Florida to Mississippi, westward and northward. — Rootstock chaffy, creeping. Fronds 3' - 8' high. § 3. CAMPYLONEURUM, Presl.— Veins parallel, pinnate from the midrib: veinlets reticulated, forming a series of parallel angular arcs with short veinlets pro- ceeding from their angles. Fronds simple. 5. P. Phyllitidis, L. Fronds linear-lanceolate, entire, acuminate, of a thin chartaceous texture, semi-pellucid ; fruit-dots rather large, in two rows between the veins. — South Florida. — Fronds 1° -2° high. § 4. PHLEBODIUM, R. Br.— Veins pinnate from the midrib, furcate: veinlets reticulated in mostly elongated meshes. Fruit-dots large, commonly at the extremities of two converging veinlets. 6. P. aureum, L. Fronds smooth and glaucous, broadly ovate, pinnately FILICES. (FERNS.) 589 parted ; the divisions lanceolate, acuminate, entire ; fruit-dots mostly in a double series in each lobe of the frond, near the midrib. — South Florida. — Rootstock large, creeping, copiously beset with lanceolate brown chaffy scales. Stipe smooth, 8' - 10' long. Fronds 10' - 15' long, two thirds as wide. 3. VITTARIA, Smith. Sporangia on a continuous receptacle immersed in a furrow open outwardly at or near the margin of the frond. Veins obscure, simple, connected at their extremities by the receptacle. Fronds simple, linear, elongated. 1. V. lineata, Swartz. Fronds nearly sessile, narrowly linear, elongated; midrib inconspicuous, lines of fructification near the margin. (V. angustifrons, Michx.) — On trees, South Florida. Fronds many from the short scaly root- stock, l°-2°long. 4. PTERIS, L. Sporangia borne on a transverse marginal receptacle connecting the ends of the veins. Indusium continuous, formed of the membranaccous margin of the frond, at first reflexed, at length pushed back and disclosing the ripened fructifi- cation. Fronds 1 -3-pinnate or decompound. 1. P. longifolia, L. Fronds lanceolate, pinnate ; pinnoe numerous, nar- rowly linear, acuminate, obtuse at the base, the terminal one elongated, the lower ones gradually smaller. — Key West. — Fronds l°-2° high, smooth. Stipe more or less chaffy. 2. P. Cretica, L. Fronds smooth, ovate, ternate or pinnate ; the lower pinnce 2 - 3-parted, sessile, the upper ones decurrent ; sterile ones lanceolate, or linear-lanceolate, finely serrate ; fertile ones narrower, entire, or spinulose- serrate at the acuminate apex ; veins straight, simple or forked, close together, almost at right angles to the midrib. — Shady woods, Middle and East Florida, — Frond 6'- 10' long. Stipe smooth, very long and slender. 3. P. aquilina, L. (BRAKE.) Fronds large, glabrous or somewhat hairy beneath, broadly triangular, tripinnate ; pinnules oblong or linear, entire or has- tate or pinnately parted ; ultimate segments obtuse, oblong or linear, the termi- nal ones often elongated, the margin reflexed or revolute ; veins simple or forked ; indusium narrow, ciliated. — Common everywhere. — Stipe stout, & - 2° high. Frond l°-2°long. Var. caudata (P. caudata, L.), with very narrow segments, the terminal ones elongated, and both surfaces of the frond glabrous or even glaucous, occurs in South Florida and along the Gulf coast. 6. PELLJSA, Link. Fruit-dots oblong or linear at the ends of the veins, confluent in a broad marginal line of fructification. Indusium as in Pteris. Veins free, forked or pinnate. Fronds mostly 1 - 3-pinnate, smooth, mostly coriaceous. 1. P. atropurpurea, Link. Fronds tufted, coriaceous, ovate-lanceolate, pinnate or below bipinnate; pinnae opposite, rather distant, the lower ones 50 590 FILICES. (FERNS.) stalked ; pinnules sessile, oblong or linear-oblong, truncate or subcordate at the base, obtuse or rarely somewhat mucronate ; indusium formed of the reflexed and little-changed margin, at length pushed back and showing a broad marginal band of ripened sporangia. (Pteris atropurpurea, L. Allosorus, Kunze, Gray.) — Mountains of Alabama and northward, mostly on lime-rock. Frond 2'- 12' high. Stipe and rachis black and shining, smooth or somewhat rusty- pubescent. 6. CHEILANTHES, Swartz. Fruit-dots at the thickened ends of the veins, distinct or at length confluent, covered by the continuous or interrupted reflexed margin of. the lobes. Veins free. Fronds 1 -3-pinnate ; pinnules with a midrib, often hairy or woolly. 1. C. Alabamensis, Kunze. Fronds broadly lanceolate, subcoriaceous, pinnate ; pinnae ovate-lanceolate, deeply pinnatifid, or the lower ones again pin- nate ; pinnules ovate-oblong, rather obtuse, often auriculate at the upper side of the base, glabrous, the margin reflexed and forming a mostly continuous mem- branaceous involucre. (Pteris Alabamensis, Buckley.) — Limestone cliffs on the Tennessee and French Broad Rivers, Alabama, &c., Buckley. — Fronds 4' - 6' long, on slender black and polished stipes 2' -4' long, pulverulent along the upper side, and somewhat chaffy at the base. 2. C. vestita, Swartz. Fronds broadly lanceolate, like the stalks hirsute with rusty hairs, bipinnate ; pinna? triangular-ovate ; pinnules oblong, obtuse, more or less incised ; the ends of the lobes reflexed to form separate herbaceous involucres. — Near Augusta, Georgia, Kunze, and northward. — Fronds 4' -8' long, becoming smooth above. 3. C. tomentosa, Link. Fronds broadly lanceolate, tripinnate, above clothed with white deciduous hairs, beneath densely tomentose with brownish- white wool ; primary pinnae ovate-oblong ; ultimate segments minute, round- obovate, sessile or adnate-decurrent, the margin reflexed forming a continuous somewhat membranaceous involucre. (C. Bradburii, Hook., at least as to Lind- heimer's plant.) — French Broad River, North Carolina and Tennessee, and south westward. — Frond 6' -12' long. Stipe and rachis whitish with long paleaceous hairs. 7. ADIANTUM, L. MAIDENHAIR. Indusium orbicular or transversely elongated, formed of a reflexed and altered portion of the margin of the frond, bearing the sporangia on its under side at the ends of the veins. Midrib none or eccentric : veins forking, mostly free. Stipe and rachis commonly black and shining. 1. A. pedatum, L. Stipe long and slender, forked, the spreading and recurved branches bearing on the outer side several slender horizontal pinnate divisions ; pinnules numerous, alternate, short-stalked, oblong, entire on the lower side, the upper margin cleft and fruit-bearing. — Shady woods, North Carolina, and northward. — Stipe 8' -12' high. The most graceful of all our Ferns. FILICES. (FERNS.) 591 2. A. Capillus-Veneris, L. Frond ovate-lanceolate, 2- 3-pinnatc ; pin- nules very delicate, oblique, broadly wedge-shaped or sometimes rhomboid, rather long-stalked, the upper margin deeply incised and fruit-bearing or sterile and dentate ; stipe slender, ebeneous ; rachis almost capillary, flexuous. — Mostly pendent from Limestone cliffs, Florida, Alabama, and westward. — Fronds 1°- 3° long. 8. BLECHNUM, L. Sporangia on a transverse elongated receptacle parallel to the midrib, combin- ing the veins near their bases. Indusium fixed by its outer margin, opening in- ward. Veins of the sterile fronds free. Fronds simple or pinnate. 1. B. serrulatum, Michx. Fronds erect, rigid, pinnate; pinnae articu- lated with the rachis ; fertile ones linear-lanceolate, acute, finely and sharply serrate ; fruit close to the midrib ; sterile ones broader, bearing a few chaffy scales along the midrib. (B. angustifolium, Willd.) — Florida, Michauz, Buckley! 9. WOODWARDIA, Smith. Fruit-dots linear-oblong, in one or two series on transverse anastomosing veinlcts parallel and near to the midrib. Indusium attached by its outer margin to the veinlet, opening inward. Veins more or less reticulated, free toward the margin of the frond. Fronds mostly pinnatifid or pinnate. 1. W. angUStifolia, Smith. Fronds smooth, pinnatifid ; the sterile ones ovate, with broadly-lanceolate finely serrate divisions, united at the base and decurrent on the stipe, the veins reticulated in several series of areoles ; fertile fronds taller, with narrowly linear entire divisions, and a single series of elon- gated areoles, each containing an oblong fruit-dot with a vaulted indusium. ( Acrostichum areolatum, L. W. onocleoides, Willd.) — Bogs and shady banks, Florida, and northward. — Rootstock creeping, elongated, as thick as a goose- quill. Stipe 6' - 12' high, about the length of the frond. 2. W. Virginica, Willd. Fertile and sterile fronds alike, ovate, smooth, pinnate ; pinnae lanceolate, narrowed at both ends, pinnatifid ; segments oblong, obtuse ; veins forked, forming a single series of areoles along the midrib both of the pinnce and of the segments ; areoles fruit-bearing in the fertile frond. — Shal- low ponds, Florida to Mississippi, and northward. — Rootstock as thick as one's finger, creeping, elongated, with a tough black exterior, the interior soft and white. Fronds l°-4° high; stipe smooth. 10. CAMPTOSORTTS, Link. WALKING-LEAF. Fruit-dots linear or oblong, straight or curved, scattered irregularly on the back of the frond, often opposite in pairs, or converging and united. Indusium linear, attached by one margin to the reticulated veins of the simple frond. 1. C. rhizophyllus, Link. Fronds evergreen, lanceolate, cordate or hastate at the base, long-acuminate, often rooting at the extremity and giving 592 FILICES. (FERNS.) rise to new plants. (Aspleniura rhizophyllum, L.) — Shaded rocks on the mountains of Georgia, and northward. — Fronds 4'- 10' long. 11. ASPLENIUM, L. Fruit-dots oblong or linear, oblique to the midrib, the indusium attached by one margin to the mostly free veins, rarely curved, or double and attached to both sides of the vein. § 1. ASPLENIUM PROPER. — Indusia straight, attached by their whole length to the upper side of the vein; rarely some of them double, and placed back to back. * Fronds pinnatifid or simply pinnate. 1. A. pinnatifidum, Nutt. Fronds lanceolate, acuminate, cordate at the base, pinnatifid, or below sometimes pinnate, the roundish divisions obtuse, crenate or serrate ; fruit-dots scattered. — Alleghanics of Alabama, and north- ward.— Fronds 3' -6' long. A form with the lowest segment on each side elongated horizontally and acuminate, has been found in Alabama by Mr. Beau- mont. 2. A. dentatum, L. Fronds linear-oblong, obtuse, pinnate; pinnae mostly opposite, 8-12 pairs on short but distinct stalks, roundish ovate (3" -4" long), cuneate at the lower side of the base, and truncate at the upper side, cre- nate or serrate, obtuse ; fruit-dots 6 - 8 on each pinna, elongated, the one next the rachis often double. — Carolina, Th. Moore, Florida," Binney. — Fertile fronds 4' - 6' high, the stipe as long as the sterile fronds. 3. A. Trichomanes, L. Stipe and rachis slender, purplish black and shining ; fronds many from the short rootstock, linear, pinnate ; pinnae numer- ous, minute (2'/i-3" long), roundish oblong, narrowed at the base and attached to a raised point on the rachis; fruit-dots 4-8 on a pinna. (A. melano- caulon, Willd.) — Rocks along the Alleghanies, and northward. — Fronds 4' - 8' high. 4. A. ebeneum, Aiton. Stipe and rachis purplish black and shining; fronds linear-lanceolate or spatulate, acuminate, pinnate ; pinnae numerous, ses- sile, linear-oblong, auricled on one or both sides of the base, serrate or nearly entire, those below the middle of the frond gradually shorter and deflexed ; fruit- dots 10-13 on a pinna. — Florida to Mississippi, and northward. — Fronds 6'- 18' high, l'-3' wide; stipe very short. 5. A. angUStifolium, Michx. Fronds tall, lanceolate, pinnate; pinnae numerous ; the sterile ones lanceolate from a truncate base ; the fertile ones nar- rower, and bearing 60 - 80 curved fruit-dots on the upper branches of the pin- nate forking veins; indusia thickish, strongly convex. — Rich soil along the mountains, and northward. — Fronds l°-3° high, annual. Pinnae 2' -4' long, 4" -8" wide. * * Fronds 2 - 3-pinnate or pinnatifid. 6. A. rnontantnn, Willd. Fronds small, ovate-lanceolate, pinnate ; pin- nae few, petioled, ovate or triangular ; the lower ones pinnatifid ; the upper ones incised ; divisions toothed or serrate ; fruit-dots very short, the basal ones often FILICES. (FERNS.) 593 with a double indusium. — Mountains of Alabama, and northward. — Fronds 2' - 5' high, with a winged greenish rachis, and a stipe nearly as long as the frond. 7. A. Buta-muraria, L. Fronds small, ovate, pinnate above, bipinnate below, the divisions stalked, obovate-cuncate, toothed at the apex ; veins forked from the base ; fruit-dots few, indusia laciniate at the margin. — Rocks along the mountains, and northward. — Fronds 2' - 4' high. 8. A. myriophyllum, Presl. Fronds delicately membranaceous, lan- ceolate, narrowed below, 2-3-pinnatc; ultimate segments obovate-oblong, en- tire or 2 - 3-lobed ; veins single in each segment or lobe, bearing below the middle a solitary oblong fruit-dot. (A. Anchorita, Chapm. MS.) — On the walls of a limestone cave at Schurlock's Spring, Jackson Co., Florida, Chapm. — Fronds 3' -10' high, with short stipes and narrowly winged rachises. 9. A. thelypteroides, Michx. Fronds ample, oblong-ovate, pinnate; the deeply pinnatifid pinnae lanceolate-acuminate from a broad sessile base ; the lower ones smaller, distant, and deflexed ; the lobes oblong, obtuse, crenately serrate; fruit-dots 8-12 to a lobe, at length confluent, those next the midrib toward the ends of the pinnae mostly double ; indusium convex, thickish. — Rich woods in the upper part of Georgia, and northward. — Fronds l°-3° high. § 2. ATHYRIUM, Roth. — Indusium thin, attached to the upper side of the vein ; or recurved and crossing the vein, attached to both sides of it, thus becoming reni- form or shaped like a horseshoe. 10. A. Filix-fCBmina, Bernh. Fronds ample, ovate-oblong ; pinnse lan- ceolate, numerous ; pinnules oblong or lanceolate, doubly serrate or variously incised ; fruit-dots short, at length confluent. ( Aspidium Filix-foemina, Sivartz.) — Low shady woods, Florida to Mississippi, and northward. — Fronds l°-3° high. — A. asplenoides (Aspidium asplenoides, Swartzl) is said to differ in hav- ing a creeping caudex. 12. CYSTOPTEBIS, Bernhardi. Fruit-dots round, on the back of the free forking veins, covered when young by a thin ovate or roundish hood-shaped indusium attached by the lower side rather beneath the fruit-dot, its apex pointing toward the end of the vein, at length reflexed or falling away. — Delicate Ferns with 2-3-pinnate fronds, and short creeping rootstocks. 1. C. fragilis, Bernh. Fronds ovate-oblong, bipinnate; the ovate-lance- olate pinnae mostly opposite, the lowest pair distant, smaller ; pinnules oblong or obovate, cuneate at the base and decurrent on the winged secondary rachis, variously toothed or incised ; indusium ovate, acuminate. (Aspidium tenue, Swartz.) — Moist rocks on the mountains of North Carolina, and northward. — Fronds 4' -8' long, on slender brownish stipes as long as the frond. Pinnules varying greatly in shape and size. 50* 594 FILICES. (FERNS.) 2. C. bulbifera, Berah. Fronds lanceolate, very long and attenuated at the apex, often bearing bulblets beneath, bipinnate ; pinnae triangular-lanceolate ; the lowest pair largest, distant; pinnules oblong, crenately incised or toothed, obtuse; indusiura roundish, truncate. (Aspidium bulbiferum, Swartz.} — Rocks on the mountains of North Carolina, and northward. — Fronds l°-3° long. The bulblets fall to the ground, and form new plants, which are about two years in coming to maturity. 13. ASPIDIUM, Swartz. SHIELD-FERN. Fruit-dots round, borne on the veins mostly below their apices. Indusium round-reniform and fixed at the sinus, or orbicular and fixed by the depressed centre. Veins with acute or attenuated apices. Our species have free veins and 1 - 3-pinnate fronds. § 1. LASTREA, Bory. Indusium round-kidney-shaped, fixed at the sinus, # Fronds thin and delicate, decaying in autumn ; ultimate segments entire or nearly so; veins simple or once forked. 1. A. Thelypteris, Swartz. Fronds smooth, ovate-lanceolate, pinnate; pinnae lanceolate, often recurved, deeply pinnatifid ; the lowest 1-2 pairs rather smaller ; segments oblong, obtuse, nearly entire, the fertile ones with a strongly revolute margin ; veins mostly forked ; indusium minute, smooth. — Swamps and bogs, Florida, and northward. — Fronds 10' -18' long, with an elongated stipe. This species and the next one have slender, nearly naked rootstocks, which creep several inches in advance of the fronds. 2. A. Noveboracense, Willd. Fronds lanceolate, tapering both ways from the middle, pinnate ; pinnae lanceolate, hairy beneath along the midrib ; the lowest 4-6 pairs gradually smaller, distant and deflexed ; segments oblong, obtuse, nearly entire ; veins simple ; indusium minute, smooth. — Low grounds, North Carolina, and northward. — Fronds l°-2° long, on rather short stipes. 3. A. patens, Swartz. Fronds ovate or oblong-ovate, pubescent, espe- cially on the veins beneath, pinnate ; pinnae lance-linear from a broad base, deeply pinnatifid ; the lowest pair a little smaller and reflexed ; segments oblong, often falcate, entire, or the upper basal one enlarged and pinnatifid ; veins simple, free, or the basal ones meeting at the sinus between the segments ; indusium small, pubescent. (A. molle, Kunze in Sill. Jour.) — Low shady woods, Florida to South Carolina, and westward. —Fronds l°-3° high. * * Fronds thicker; ultimate segments more or less serrate or toothed; the lowest veins more than once forked. 4. A. spinulosum, Swartz. Fronds ovate-oblong, thin, smooth; bipin- nate or below tripinnate ; pinnae oblong-lanceolate ; the lower ones broader, triangular-ovate ; ultimate segments oblong, or linear-oblong, closely set on a narrowly winged partial rachis, variously incised or serrate with spinulose teeth ; fruit-dots small ; indusium deciduous, sparingly glandular at the margin. (A. intermedium, Muhl) — Shady woods in the upper districts of North Carolina, Tennessee, and northward. — Fronds l°-2° long, 5' -9' wide, varying greatly in outline, and in the shape of the segments. FILICES. (FERNS.) 595 Var. dilatatum, Gray. Fronds wider in outline, of a rather firmer text- ure ; the pinnae fewer and set further apart, the lowest pair largest, with the 2-3 lower basal pinnules elongated ; segments larger and more distant ; fruit-dots larger; indusium smooth. (A. dilatatum, Sicartz. A. campylopterum, Kunze.) — Summits of the Black Mountains, North Carolina, Rugel. — Fronds l°-2° long, 10' -16' wide. 5. A. Ludovicianum, Kunze. "Fronds membranaceous, rather rigid, finely glandular-pubescent beneath on the midribs, ovate, acuminate, bipinnate ; pinnae distant, petiolcd, ovate or oblong, acuminate; pinnules ovate, deeply pinnatifid ; the lowest divisions sessile with a narrowed base ; the upper ones adnate, oblong, obtuse, crcnately appressed-serrate ; serratures acute, sometimes denticulate ; fruit-dots half-way between the midrib and margin, on the upper branches of the forked veins ; indusium reniform, thickish, entire, smooth, per- sistent." Mettenius. — Florida to Louisiana, Kunze. — " Rootstock oblique ; fronds 2° -3° long; stipe straw-color, sparsely chaffy ." — I have not seen this Fern, which has more recently been referred by Mettenius to A. Canariense, Al. Br. 6. A. Floridanum. Fronds thickish, broadly lanceolate, pinnate ; lower pinna? sterile, triangular-lanceolate, deeply pinnatifid, with closely set oblong, obtuse divisions ; upper pinna? fertile, narrower and longer, again pinnate, with oblong obtuse pinnules, distant on the narrowly winged secondary rachis ; fruit- dots large, half-way between the midrib and margin ; indusium round-reniform, smooth. (Nephrodium Floridanum, Hook.) — Wet woods, Florida to Louisiana. — Fronds l°-2° high, the sterile ones shorter, growing in a crown from a thick and scaly rootstock. — The plant has much the appearance of large forms of A. cristatum, Swartz, and may prove to be an extreme state of that species. 7. A. marginale, Swartz. Fronds evergreen, smooth, thickish and al- most coriaceous, ovate-lanceolate, bipinnate ; pinnae lanceolate from a broad base ; pinnules oblong or linear-oblong, attached by a broad base to the nar- rowly winged secondary rachis, entire or crenately toothed ; fruit-dots large, very near the margin ; indusium round-reniform, convex, thickish, smooth. — Mountains of North Carolina, and northward. — Fronds bluish-green, l°-2° long, on a short stipe, which, like the short thick rootstock, is shaggy with large brown chaffy scales. § 2. POLYSTICHUM, Roth, Schott. Indusium orbicular, fixed by the de- pressed centre. 8. A. acrostichoides, Swartz. Fronds evergreen, thickish, smooth and shining, lanceolate, the fertile ones tallest, pinnate; pinnae numerous, short- stalked, oblong-lanceolate, auriculate at the base on the upper side, cuneate at the lower, obtuse or acute, finely serrate or incised with spinulose-pointed teeth ; the upper pinnae of the fertile frond contracted and covered with the copious fruit dots ; indusium round, peltate, smooth and entire. — Shady and rocky woods, Florida to Mississippi, and northward. — Fronds l°-2° high. Root- stock and stipe very chaffy. 596 FILICES. (FERNS.) 14. NEPHROLEPIS, Schott. Fruit-dots at the ends of the veins, in a series near the margin of the pinnae. Indusium reniform, often broadly so, fixed by the sinus, or by the arcuate base, open obliquely toward the margin of the pinnae. Fronds pinnate, elongated ; the pinna? articulated to the rachis. Veins free, forked from the midrib, their apices thickened. 1. N. exaltata, Schott. Fronds linear, indefinitely elongated, unfolding numerous pinnae, which are oblong-lanceolate, auriculate on the upper side of the base, rounded on the lower side, falcate, crenately serrate ; fruit-dots large ; indusium reniform or crescent-shaped, the oblique sinus narrow and deep or broad and shallow on the same pinnae. — South Florida, Dr. Cooper. — Fronds l°-6° long, 2' - 3' wide, usually pendent from the trunks of trees. 15. ONOCLEA, L. Fertile fronds contracted, the pinnules strongly revolute and berry-like ; fruit- dots on the back of the free veins, with an elevated receptacle ; indusium attached partly to the receptacle and partly to the intervenular surface. Sterile fronds foliaceous, much taller than the fertile ones. 1. O. sensibilis, L. Sterile fronds on a long smooth stipe, broadly deltoid-ovate, pinnatifid almost or quite to the rachis ; the divisions lanceolate, entire or crenately incised ; veins finely reticulated with oblong-hexagonal areoles ; fertile fronds shorter, bipinnate ; pinnae erect, appressed to the rachis ; the pinnules crowded. — Meadows and wet places, Florida to Mississippi, and northward. — Rootstock nearly naked, creeping. Fronds varying from four inches to three feet in height. 16. WOODSIA, R. Brown. Fruit-dots on the back of the veins ; the involucres placed beneath the fruit- dot, saucer-shaped or cup-shaped, divided into irregular lobes or a delicate fringe, or sub-globose and contracted at the mouth. Small Ferns with many fronds from a short scaly rootstock. * Involucre fringed, the hair-like divisions incurved on the sporangia. 1. "W. Ilvensis, R- Brown. Fronds sparingly hairy above, villous be- neath and on the stipe and rachis with brown hairs and narrow chaff, lanceolate, pinnate ; pinnae ovate-oblong, deeply pinnatifid, the divisions oblong, obtuse, entire or crenate. Fruit-dots enveloped in the fringe of the involucre. — Rocks along the Alleghany Mountains, and northward. — Fronds 3' -8' high. * ^ Involucre divided into a few irregular lobes. 2. W. obtusa, Torr. Fronds nearly smooth, broadly lanceolate, pinnate, or near the rachis bipinnate; pinnae triangular-ovate, the lower ones distant, pinnately parted ; segments oblong, obtuse, the upper ones toothed, the lower ones pinnatifid with toothed lobes ; veins forked, the tips whitish on the upper surface of the frond ; fruit-dots on the lobules ; involucre delicate, the lobes FILICES. (FERNS.) 597 hidden by the ripened sporangia. — Rocky places, North Carolina, Tennessee, and northward. — Fronds 6' - 16' high. 17. DICKSONIA, L'Hcr. § SITOLOBIUM, Desv. Fruit-dots small, globular, terminal on the free veins ; sporangia on an ele- vated receptacle in a thin cup-shaped involuere which is partly adherent to a reflexed lobule of the frond. Fronds large, 2-3-pinnate, from a creeping root- stock. — DICKSONIA proper lias large two-lipped involucres, of a firmer texture, and several species have an arborescent caudex. 1. D. punctilobula, Kunzc. Fronds delicate, slightly glandular-pubes- cent, as is the rachis, lanceolate-acuminate, 2 - 3-pinnate ; pinnae numerous ; pinnules oblong-ovate, closely placed, obtuse, pinnately incised or pinnatifid ; the divisions obtusely serrate, each one bearing a minute fruit-dot at the upper margin. — Moist shady woods in the upper part of North Carolina, Tennessee, and northward. — Rootstock slender, extensively creeping. Fronds 2° - 3° high, when crushed returning a pleasant odor. 18. TRICHOMANES, L. Sporangia with a transverse entire ring, arranged on the lower part of a cylindrical, filiform, often elongated receptacle : involucres marginal, funnel- shaped, or bell-shaped, entire or two-lipped at the mouth. Fronds delicate, very thin and pellucid. 1. T. Petersii, Gray. Very small, with entangled filiform tomentose root- stocks ; fronds oblong-lanceolate or obovate, entire or variously pinnatifid, nar- rowed into a slender stipe nearly as long as the frond, the younger ones with a feV black forked hairs along the margin; veins forked, pinnate from the midrib; involucre solitary, terminal, funnel-shaped, the mouth expanded and slightly two-lipped, receptacle included. — On the face of a sandstone rock, sprinkled from a waterfall, Hancock Co., Alabama, T. M. Peters. Also among some Mosses sent from Pensacola, Florida. — Fronds less than an inch high. 2. T. radicans, Swartz ? Fronds pellucid, with a loose roundish areola- tion, on a short broadly winged stipe, lanceolate or ovate-lanceolate, bipinnatifid ; pinnae ovate or deltoid-ovate, obtuse, the upper side of the base parallel and appressed to the winged rachis, the lower side cuneate ; divisions toothed or divided into linear lobes ; involucres terminal on short lobes of the pinnae, tubular-funnel-shaped, margined, at the mouth truncate and slightly two-lipped; receptacle exserted a little or very much. (T. Boschianum, Sturm.} — Hancock County, Alabama, Peters, Beaumont. Cumberland Mountains, Eastern Tennes- see, Rev. Dr. Curtis. — Rootstock slender, creeping, tomentose with black hairs. Fronds 4' -8' high, 12" -18" wide. 19. LYGODIUM, Swartz. CLIMBING FERN. Sporangia beneath ovate hood-shaped imbricated indusia, in a double row on narrow divisions of tho fronds, attached laterally, ovate, with a many-rayed api- 598 FILICES. (FERNS.) cal ring. Fronds elongated, climbing, the branches usually in pairs with a short common foot-stalk. 1. L. palmatum, Swartz. Fronds slender, pinnae deeply cordate at the base, palmately 4 - 7-lobed, the lobes oblong, obtuse, entire ; the upper pinnae decompound and bearing the fruit on the very narrow segments. — Low shady woods, Florida, and northward ; not common. — Rootstock very slender, creep- ing. Fronds 2° - 5° high, climbing on weeds and bushes. 20. ANEIMIA, Swartz. Sporangia ovate, many-rayed at the apex, attached by the base in a double row to the narrow one-sided paniculate divisions of the two lower branches of the frond, or on separate fronds. Indusium none. Fronds erect, commonly three-branched, the middle branch sterile and 1 -3-pinnate. 1 . A. adiantifolia, Swartz. Fronds sparingly pubescent, erect on a slen- der stipe ; the two lower branches elongated, pinnately decompound, fertile ; sterile part of the frond deltoid-ovate, 2 - 3-pinnate ; ultimate segments obovate, cuneate, entire or lobed, striate above with numerous flabellate veins. — Key West, &c., South Florida. — Fronds 6' -12' high, rather rigid. Rootstock creep- ing, slender, covered with a black tomentum. 21. OSMUNDA, L. FLOWERING FERN. Sporangia globular, short-pedicelled, having an incomplete transverse ring, represented by a few parallel striae near the apex, opening by a vertical chink into two nearly equal valves, paniculately arranged on contracted parts of the frond or on separate fronds. Fronds tall, erect, several from a stout rootstock, 1 - 2-pinnate. Veins forking, free. * Fronds bipinnate, fertile at the top ; sterile pinnce few. 1. O. regalis, L. Fronds ovate, smooth; sterile pinnae distant; the finely serrulate pinnules distinct, oblong-lanceolate, cordate or truncate at the nearly sessile base, sometimes auricled at the lower side of the base ; the upper pinnae erect, panicled and thickly covered with light brown sporangia. (O. spectabilis, Willd.) — Swamps, Florida to Mississippi, and northward. — Fronds l°-5° high ; pinnules 1'- 2' long, 3"- 4" wide. . * * Sterile fronds pinnate: the pinnce numerous, deeply pinnatifid, with oblong entire segments. 2. O. Claytoniana, L. Fronds broadly lanceolate, woolly when young, at length nearly smooth ; sterile pinnae sessile, oblong-lanceolate, deeply pinna- tifid ; the segments crowded ; fertile pinnae few, between the middle and the base of the frond, contracted, the sporangia deepening in color as the sterile pinnae expand. (0. interrupta, Michx.) — Low grounds in the upper districts, and northward. — Fronds 2° -3° high. 3. O. cinnamomea, L. Sterile fronds covered with rusty wool when young, at length smooth ; pinnae sessile, lanceolate ; segments broadly oblong, FILICES. (FERNS.) 599 obtuse ; the lower basal ones in large fronds often elongated and pinnatifid ; fer- tile frond distinct, contracted, bipinnate, very woolly, densely covered with cin- namon-colored sporangia, withering before the sterile fronds are expanded. — Low grounds, Florida, and northward. — Fronds 1° -3° high. 22. BOTBYCHIUM, Swartz. MOONWORT. Fronds mostly solitary, erect from a root of thickened fleshy fibres ; the termi- nal branch fertile, pinnately decompound, bearing on its narrow divisions the large coriaceous, transversely 2-valved sporangia ; the lateral branch sterile, with forking free veins. 1. B. Virginicum, Swartz. Stem tall; sterile part of the frond sessile, broadly triangular, ternately 3 -4-pinnate ; ultimate segments oblong-lanceolate, thin and delicate, toothed and incised; fertile part long-stalked, 2-3-pinnate. — Shady woods, Florida, and northward. — Fronds 4' - 2° high. 2. B. lunarioides, Swartz. Stem low ; sterile part of the frond mostly long-stalked, broadly triangular, 2 - 4-pinnate ; ultimate segments of a thick and fleshy texture, roundish, ovate, oblong or lanceolate, entire, toothed, incised, or even dissected into very narrow lobes ; fertile part taller than the sterile, ovate, 2-3-pinnate. (B. fumarioides, Willd. B. obliquum and B. dissectum, MuhL) — Low shady woods and pastures, rarely in open pine-barrens, Florida, and northward. — Fronds 3' -10' high, the succulent stem, divided down to the sur- face of the ground, or even lower. 23. OPHIOGLOSSUM, L. ADDER'S-TONGUE. Fronds mostly solitary, with short and often thickened rootstocks, and fleshy fibrous roots ; sporangia large, coriaceous, opening transversely, connate, arranged in compact simple 2-ranked spikes, proceeding variously from the mostly simple sterile part of the frond. Veins reticulated. 1. O. vulgatum, L. Sterile part of the frond ovate or oblong-oval, ob- tuse, sessile near the middle of the stem, without a midrib ; fertile spike terminal, long-peduncled ; rootstock short, erect ; roets fibrous, spreading horizontally. — Insphagnous meadows and pastures, Tennessee, and northward. — Fronds 4'- 10' high. — The following are probably but forms of this widely diffused and variable species. Var. crotaloph.oroid.es. Smaller ; sterile part of the frond near the base of the stem, ovate, abruptly contracted at the base and slightly petiolcd ; spike short and thick ; rootstock bulbous; roots slender. (0. crotalophoroides, Wal- ter. O. bulbosum, Michx.) — Low grounds, Florida to Louisiana. — Fronds 3' - G' high. Var. nudicaule. Small, sterile part of the frond near the base of the stem, ovate or oblong, acute, narrowed into a short petiole ; spike linear acuminate ; rootstock bulbous; roots coarse. (0. nudicaule, L.f. O. ellipticum, Hook, fr Grev.) — Low sandy places or occasionally in dry soil, Florida and Georgia. — Fronds 1'- 4' high. 600 LYCOPODIACE^E. (CLUB-MOSS FAMILY.) ORDER 163. LYCOPODIACE^. (CLUB-MOSS FAMILY'.) Perennial plants, with solid branching and mostly creeping stems, sparingly or thickly clothed with small, simple, sessile, awl-shaped or linear leaves. Fructification consisting of 1 - 3-celled solitary spore-cases, ax- illary, either along the main stem, or only in the axils of the upper and mostly changed (bract-like) leaves. 1. LYCOPODIUM, L. CLUB-MOSS. Sporangia of one kind, coriaceous, commonly kidney-shaped, opening trans- versely into two valves and containing minute powdeiy spores. Perennial, mostly evergreen plants ; the leaves imbricated in several or many rows along the stem and branches. § 1. Sporangia borne along the stem, in the axils of 'uniform leaves. 1. L. lucidulum, Michx. Stems ascending, forking, somewhat com- pressed; leaves (deep green) in several rows, linear-lanceolate, very acute, spar- ingly denticulate, spreading or reflexed. — Shady woods on the mountains of North Carolina, and northward. — Stem 6'- 12' long. Leaves glossy. 2. L. SelagO, L. Stems short and thick, terete, clustered, erect or ascend- ing, forking ; leaves in several rows, deep green, lanceolate, acute, entire, the upper erect, the lower spreading. — High mountains of North Carolina, and northward. — Stems 3' - 6' high, rigid. Leaves crowded. § 2. Sporangia in the axils of the upper leaves, forming a terminal terete bracted spike. * Bracteal and stem leaves alike, spreading. 3. L. alopecuroides, L. Stem thick, terete, forking near the base, re- curved, and rooting at the apex, very Jeafy ; leaves in many rows, spreading, subulate, bristly-fringed below the middle; peduncles erect, 6'- 12' high, similar to the stem ; spike thick, cylindrical, bristly from the spreading or recurved bracteal leaves. — Open pine-barren swamps, Florida to Mississippi, and north- ward. — Stems 1° - 1^° long, pale green. 4. L. inundatum, L. var. pinnatum. Stem rather slender, prostrate, creeping, pinnately branched ; leaves linear-subulate, bristly-fringed below the middle, unequal, the upper and lower ones shorter and somewhat appressed, the lateral ones widely spreading; peduncle mostly solitary, erect (1° high), very leafy; spike thick, cylindrical, 2' -3' long. — Low pine barrens, near the coast, West Florida. — Stem 6'- 15' long, and, with the spreading leaves, £' wide. * * Bracteal leaves wider than those of the stem. H- Leaves of the stem equal and alike. 5. Xi. clavatum, L. Stem very long, terete, creeping, with numerous short and erect leafy branches ; peduncles with scattered leaves, each bearing 2 - 3 linear-cylindrical spikes ; leaves in several rows, subulate, entire, incurved, pointed, like the ovate erosely-denticulate bracts, with a spreading bristle. — Mountains of North Carolina, and northward. — Peduncles 4' -6' long. LYCOPODIACE^E. (CLUB-MOSS FAMILY.) G01 •»- •«- Leaves of the flattened stem and branches unequal. 6. L. dendroideum, Michx. Stem erect (6' -12'), clothed with scattered apprcssed subulate and entire leaves, simple below, bearing above numerous forking and spreading fan-like mostly compressed branches ; lower row of leaves, and sometimes the upper, shorter, the lateral ones spreading ; peduncles short, bearing one or more cylindrical spikes ; bracts spreading, ovate, acute, crenate on the margins. (L. obscurum, L.). — High mountains of North Carolina, and northward. 7. L. Carolinianum, L. Stem creeping, pinnately branched, naked and rooting beneath ; upper leaves short appressed, the lateral ones widely spi'eading, lanceolate, acute, entire; peduncle slender (6' -12' high), clothed with scattered subulate leaves, and bearing a single linear spike ; bracts ovate, acuminate, spreading. — Low pine barrens, Florida, and northward. — Stem 2' - 8' long. 8. L. COmplanatum, L. Stem long and creeping, the numerous erect branches successively forking into many linear crowded flattened branchlets ; leaves minute, subulate, imbricated in 4 rows, the lateral ones slightly spread- ing ; peduncles with minute scattered leaves, slender, bearing 2-4 erect cylin- drical spikes. — Woods along the Alleghanies, and northward. — Stem 2° - 10° long. 2. SELAGINELLA, Beauv. Fructification of two kinds, either in the same or separate axils ; one kind as in Lycopodium, the other with sporangia containing few (mostly 3-4) larger spores. Spikes 4-angled. 1 . S. rupestris, Spring. Stems rigid, densely clustered, erect or spread- ing, much branched; leaves (grayish) subulate, rigid, rough-fringed on the mar- gins, bristle-pointed, closely imbricated in many rows; spikes linear, nearly sessile. — Dry sand ridges in the pine barrens, and on dry rocks, Florida, and northward. — Stems 2' -3' high. 2. S. apus, Spring. Stems prostrate, creeping, slender, branched ; leaves scattered, unequal, the lateral ones larger and widely spreading, 2-ranked, ovate, acute or obtuse, membranaceous, denticulate on the margins ; the others smaller, acuminate, and appressed ; bracts of the short sessile spike similar to the leaves. — Low shady woods, Florida, and northward. — Plant whitish. Stems 3' -9' long. 3. PSILOTUM, E. Brown. Sporangia of one kind sessile, globular, opening at the apex into 2-3 valves, and filled with very minute powdery spores. 1. P. triquetrum, Swartz. Stem forking, compressed, the branches 3- angled ; leaves very minute, bristle-like ; sporangia spiked, 3-celled, the cells im- perfectly 2-valved. — East Florida. 51 602 HYDROPTERIDES. ( WATER-FERN FAMILY.) ORDER 164. HYDROPTERIDES. (WATER-FERN FAMILY.) Aquatic herbs, with the sporangia of two forms, borne at the base of the leaves and bursting irregularly. 1. ISOETES, L. Plants composed of fibrous roots and filiform cellular leaves, without any ap- parent stem. Sporangia sunk in an excavation of the dilated hase of the leaves, plano-convex, membranaceous, filled with transverse threads and minute pow- dery spores ; those of the central leaves filled with larger spores. 1. I. flaccida, Shuttlw. Immersed; leaves very long (l£°-2°), slender, flaccid, yellowish-green ; spores very small, minutely pulverulent, not reticulated. — In lakes and clear streams, Middle and West Florida. 2. AZOLLA, Lam. Minute floating plants, with pendent roots, pinnately branching stems, and thick imbricated cellular leaves. Sporangia of two kinds, ovoid, sessile on the under side of the branches, and covered with a thin membrane ; the smaller kind opening transversely, containing several angular grains, attached to a central col- umn, the larger bursting irregularly and containing numerous globular stalked spores. 1. A. Caroliniana, Willd. — On still water, chiefly near the coast, Flor- ida, and northward. — Plant reddish, circular in outline, £'-!' in diameter. Leaves ovate, obtuse, rounded and roughened on the back. INDEX. Page Abies, 434 Alder, ABIETINE^E, 432 Aletris, Abildgaardia, 523 Alisma, Abutilon, Acalvpha, 55 405 Alisma, ALISMACE^E, ACANTHACE^E, 302 ALISME^E, Acanthus Family, 302 At/ionia, Acer, 80 Allium, Acer, 81 Allspice,. ACERACEJE, 80 Almond, Acerates, • 365 Alnus, Achillea, 242 Alopecurus, ACHYRANTHEJE, 379 Allosoms, Acmdla, 237 Alsine, Acnida, 381 ALSINE.E, Aconitum, 10 Alternanthera, Acorus, 442 Althaea, ACROGENS, 585 Alum-root, ACROSTICHE^:, 586 AMARANTACEJE, Acrostichum, 588 Amaranth, Actaea, 11 Amaranth Family, Actinomeris, 232 Amarantus, Actinospermum, 241 Amarantus, Adder's mouth, 453 AMARYLLIDACEJE, Adder's tongue, 599 Amaryllis, Adelia, 370 Amaryllis Family, Adiautum, 590 Amblogyna, Adlumia, 22 Amblygonon, JEschynomene, 99 Ambrosia, JEsculus, 79 Amelanchier, Agave, 468 American Barberry, Ageratum, Agrimonia, 189 122 American Cowslip, Amianthium, Agrimony, 122 Ammannia, Agrostemma, 52 Ammi, AGROSTIDE^:, 545 Amorpha, Agrostis, 551 Ammophila, Ayrostis, 550, 551, 552, 553 Ampelopsis, Aira, 568 Amphianthus, Aira, 560, 568 Amphicarpaea, Air-Plant, 470 Amphicarpum, AJUGE.E, 311 Amsonia, Alchemilla, 122 Amyris, Page 429 470 447 448 447 447 373 482 130 129 429 549 590 48 45 382 58 152 378 379 378 379 380 466 466 466 381 388 223 129 17 281 490 134 162 93 554 71 295 107 572 360 604 INDEX. ANACARDIACEJE, 68 Arundinaria, 561 Anacharis, 450 Arundo, 562 Anagallis, 281 Asarabacca, 371 Andromeda, 262 Asarum, 371 Andromeda, 261, 262, 263 ASCLEPIADACE^E, 361 ANDROMEDE^:, 257 ASCLEPIADE^J, 361 Andropogon, 580 Asclepias, 362 Andropogon, 556, 583 Ascyrum, 38 ANDROPOGONE^E, 548 Ash, 369 Aneimia, 598 Asimina, 15 Anemone, 4 AspARAGE^E, 480 ANEMONEJE, 2 Aspen, 431 Angelica, 164 ASPHODELEJE, 480 ANGIO SPERMS, 1 ASPIDIE-S), 587 Anise-tree, 12 Aspidium, 594 ANONACEJE, 14 ASPLENIE^J, 586 Antennaria, 243 Asplenium, 592 Antirrhinum, 290 Aster, 198 Anthemis, 241 Aster, 197,198,207 ,208 Anthoxanthum, 569 ASTEROIDE^E, 197 Anychia, 46 Astilbe, 154 Anychia, 46 Astragalus, 97 Apetalous Exogenous Plants, 371 Atamasco Lily, 466 Apios, 105 Athyrium, 593 Aphora, 408 Atragene, 3 Aphyllon, 287 Atriplex, 377 Aplectrum, 455 Atriplex, 377 APOCYNACEJE, 358 Atropa, 351 Apocynum, 358 Aulaxanthus, 577 Apogon, Apple, 249 128 AURANTIACEJE, Avena, 61 569 Apricot, 129 AVENACE^E, 547 Apteria, 452 Avens, 123 AQUIFOLIACE^E, 268 Avicennia, 309 Aquifolium, 269 AVICENNIE^J, 306 Aquilegia, 9 Avicularia, 390 Arabis, 27 Ayenia, 59 ARACEJ3, 439 Azalea, 265 Aralia, 166 Azolla, 602 ARALIACE^, 166 Arbor- Vitse, 436 Baccharis, 217 Archangelicaj 164 Bachelor's Button, 83 Archemora, 165 Bald Cypress, 435 Ardisia, 277 Baldwinia, 240 Arenaria, 49 Baldwinia, 241 Arenaria, 49 Balm, 318 Arethusa, 458 Balsam Family, 65 ARETHUSE^:, 453 BALSAMINACE^, 65 Argemone, 21 Balsam-tree Family, 42 Arissema, 439 Baneberry, 11 Aristida, 554 Baptisia, 110 Aristolochia, 371 Baptisia, 113 ARISTOLOCHIACEJE, 371 Barberry, 17 Arnica, 246 Barberry Family, 16 Aroma, 128,129 Bartonia, 356 Arrhenatherum, 569 Basil, 312 Arrow- A rum, 440 Basswood. 59 Arrow-grass, 448 BATIDACEJE, 411 Artemisia, 242 ! Batis, 411 Arum, 440 Batis Family, 411 Arum Family, , 439 i Batodendron, 259 605 Batschia, Batatas, Bayberry, Beak-Rush, Bean-Caper Family, Beard-grass, Bear-grass, Beech, Beech-drops, Beggar-ticks, Bejaria, Bell flower, Bellwort, Bellwort Family, Bent-grass, Benzoin, BERBERIDACE^E, Berberis, Berchemia, Berlandiera, Bermuda grass, Betula, BETULACEJE, Bidens, Bigelovia, Bignonia, Biqnonia, . BIGNONIA CEJE, BlGNONIE.E, Bignonia Family, Biotia, Birch, Birch Family, Birth wort, Birth wort Family, Black-Jack, Black Snakeroot, Bladder-Nut, Bladder-Nut Family, Bladdcrwort, Bladderwort Family, BLECIINE.E, Blechnum, Blephilia, Bletia, Blood-root, Bloodwort Family, Blueberry, Blue Cohosh, Blue Curls, Blue-eyed grass, Blue Flag, Bluets, Boehmeria, Boerhaavia, Boltonia, Bonnets, Borage Family, Borkhausia, BORRAGINACE.&, BORRAGE2E, 51* 332 Borreria, 175 341 Borrichia, 224 426 Botrychium, 599 523 Boykinia, 153 63 Brachychceta, 213 552 Brachyelytrum, 553 485 Brake, 589 424 Bramble, 124 286 Braseniu, 19 236 Brasiletto Family, 114 266 Brier, 124 256 Bnckellia, 193 486 Briza, 563 486 Bryzopyrum, 562 551 Brome-grass, 556 394 BROMELIACEJB, 470 16 Broom-Corn, 583 17 Broom-grass, 580 73 221 Broom-rape Family, Broussonetia, 286 415 557 Brunella, 322 428 Brunnichia, 392 428 BRUNNICHIEJE, 384 236 Bryonia, 148 215 Buchncra, 296 285 Buckeye, 79 285 Buckleya, 397 284 Buckthorn, 73 284 Buckthorn Family, 72 284 Buckwheat Family, 384 198 Bug-bane, 11 428 Bullace, 71 428 Bumelia, 274 371 Bup/tthalmum, 224 371 Bupleurum, 162 421 Burdock, 248 11 Burmannia, 451 77 BURMANNIACEJS, 451 77 Burmannia Family, 451 282 Burr-reed, 443 282 Bursera, 68 586 BURSERACE^E, 67 591 Bush- Clover, 100 321 Butter-Cup, 7 456 Butter-nut, 419 22 Butter-weed, 245 469 Butterwort, 283 259 Button-bush, 176 17 Button-Snakeroot, 159, 190 327 Bvrsonima, 82 473 BYTTNERIACE^E, 58 472 Byttneria Family, 58 180 414 Cabomba, 19 373 CABOMBACEJE, 18 207 Cacalia, 244 20 CACTACE^E, 144 328 Cactus Family, 144 252 C^SALPINIE^J, 88 328 Cakile, 30 328 Calamagrostis, 553 606 INDEX. Calamintha, 317 Castilleia, Calamus, 442 Castor-oil Plant, Calico-bush, 264 Catalpa, Calliastrum, 198 Catchfly, Callicarpa, 309 Catnip, Callirrhoe, 53 Cat-tail, C A LLITEICHACE M, 398 Cat-tail Family, Callitriche, 399 CeculiniOj Calomelissa, 317 Caulophyllum, Calonyction, 344 Ceanothus, Calophanes, 303 CEDRELACE^, Calopogon, 456 Cedronella, Caltha, 9 CELASTRACEJE, CALYCANTHACE^B, 129 Celastrus, Calycanthus, 130 Celosia, Calycocarpum, 16 CELOSIE.E, Calyptranthes, 131 Celtis, Calystegia, 344 Cenchrus, Camelina, 30 Centaurea, CAMELLIACEJE, v 60 Centaurella, Camellia Family, 60 Ceritrosema, Campanula, 256 Centunculus, Campanula, 257 Cephalanthus, Campanula Family, 256 Cephaloxys, CAMPANULACE^E, 256 Ceranthera, Camptosorus, 591 Cerastium, Campyloneurum, 588 Cerasus, Canavalia, 109 Ceratiola, Cane, 561 C ERATOPHYLLACE M Canella, 45 Ceratophyllum, CANNABINACEJE, 414 Ceratoschcenus, Canna, 465 Cercis, Canna Family, 465 Ceresia, CANNACE^E, 465 Ccreus, Cantua, 339 Cestrum, Caper Family, Caper-tree, 31 32 Cheerophyllum, C/tcerophyllum, CAPPARIDACE^, 31 Chaetocyperus, Capparis, 32 Chsetospora, Capraria, 296 Chamaelirium, CAPRIFOLIACE^E, 169 Chamaerops, Capri/blium, 170 Chamcerops, Capsella, 30 Chapmannia, Capsicum, 350 Chaptalia, Cardamine, 25 Chawstick, Car da mine, 27,28 Cheilanthes, Cardinal-flower, Cardiospermum, 254 79 Chelone, CHENOPODIACE^, Carex, 532 Chenopodina, CARICE.E, 505 Chenopodium, Carolina Allspice Family, 129 Cherry, Ctirphephorus, 190 Chestnut, Carpinus, 425 duckweed, Carya, 418 Chimaphila, CARYOPHYLLACEJE, 45 C'hina Brier, Cashew Family, 68 China-tree, Cassandra, 262 Chinquapin, Cassia, 114 Chiococca, Cassyta, 395 Chionanthus, CASSYTE^E, 393 Chloridese, Castanea, 424 Chrysanthemum, 300 409 285 51 321 443 443 444 17 74 62 322 75 76 379 379 417 578 246 356 107 281 176 495 318 50 120 411 398 398 528 114 570 144 352 165 161 518 529 491 438 438 100 248 74 500 289 375 378 376 119 424 49 267 475 62 424 177 369 546 242 INDEX. G07 Chrysastrum, CHKYSO13ALANE.33, Chrysobalanus, Chrysocoma, Chrysogonum, Chrysoma, Chrysopsis, Ckrysopsis, Chrysosplenium, CICIIORACE.S:, Cicuta, Cimidfuga, Cl.MlCIFUGE.2E, CINCIIONE^:, Ciii'ia, Cinquefoil, Cirv'ica, Cir-ium, / CIS rACE^E, Cytharexylum, Citrus, Cladastris, Cladium, Claytonia, CLEMATIDEJE, Clematis, Cleome, Clethra, Cliftonia, Climbing-Fern, Clintonia, Ciitoria, Cl i tori a, Clover, Club-moss, Club-moss Family, Clusia, CLUSIACEJE, Cll CHS, Cnidoscolus, Coccoloba, Cocculus, Cocklcbur, Cockspur, Cocoa Plum, Coelestina, Codostylis, Colchk-um Family, Coticodendron, CoHinsonia, Colnbrina, Columbine, Co'rmndra, COMBRETACE2E, Combretum Family, Commelyna, COMMELYNACEJE, COMPOSITE, Composite Family, Comptonia, 208 118 119 215 219 214 215 215 154 249 161 11 2 173 552 124 143 246 35 309 61 113 530 43 2 3 31 264 273 597 .481 107 107 90 600 600 42 42 247 409 391 16 223 578 119 1P9 182 172 185, 186 32 315 74 9 396 136 136 497 497 184 184 427 CONIFERJE, 431 Conioselinum, 164 Conocarpus, 136 Conoclinium, 197 Conopholis, 286 Conostijlis, 470 Convallaria, 481 'CONVOLVULACEJE, 340 CONVOLVULE2E, 340 Convolvulus, 341, 342, 344, 346 Convolvulus Family, 340 Conyza, 217 Conyza, 218 Coontie, 437 Coprosmanthus, 477 Corallorhiza, 454 Corallorhiza, 455 Coral-root, 454 Corchorus, 60 Cordia, 329 CORDIE^E, 328 Coreopsis, 233 CORNACE^E, 167 Corn-Cockle, 52 Cornel, 167 Cora-Poppy, 22 Corn us, 167 Corydalis, 23 Conjdalis, 22 Corylus, 425 Cosmanthus, 335 Cosmos, 236 Cotton-grass, 521 Cotton-Plant, 58 Cotton-wood, 43 1 Crab-grass, 521 Cranesbill, 65 Cranichis, 285 Crantzia, 159 Crape-Myrtle, 135 CRASStTLACE^E, 149 Crataegus, 126 Crinum, 468 Croomia, 479 Cross-vine, 285 Crotalaria, 89 Crotonopsis, 408 Croton, 407 Crowberry Family, 410 Crowfoot, 7 Crowfoot Family, Crowfoot-grass, 558 CRUCIFER^E, 23 CRYPTOGAMOUS PLANTS, 585 Cryptotasnia, Ctenium, Cuba-grass, 583 Cucumber-tree, 13 CUCURBITACEJE, 148 Cunila, 313 Cuphea, 135 608 INDEX, CUPRESSINEJE, Cupressus, Cufjressus, CUPULIFEREJE, Currant, Currant Family, Cuscuta, CUSCUTE^J, Custard-Apple, Custard-Apple Family, Cyanococcus, CYCADACEJE, Cycas Family, CYCLOLOBE^E, Ct/nanchum, CYXAREJB, Cynoctonum, Cynodon, Cynoglossum, Cynthia, CYPERACEJB, CYPERE^E, Cyperas, Cypress, Cypress-vine, CYPRIPEDIEJE, Cypiipedium, Cyrilla, Cyrilla Family, CYRILLACEJE, Cystopteris, Dactylis, Dactyloctenium, DALBERGIEJE, Dalea, Dalibarday Dandelion, Danthonia, Darby a, Darnel, Dasystoma, Datura, Daucus, Day-flower, Dead Nettle, Dfcodon, Dccumaria, Deer-grass, Delphinium, Dentaria, Desmanthus, Desmodium, Diamorpha, Dianihera, Dia/iensia, DIAPENSIE^E, Dicentra, Dicerandra, Dichondra, DlCHONDREJE, 432 Dichromena, 530 435 Dicksonia, 597 436 DICKSONIE^;, 587 420 Dicliptera, 305 145 DICOTYLEDONOUS PLANTS, 1 145 Diervilla, 169 346 Digitaria, 572 341, Digitaria, 557 15 Diodia, 175 14 Dionsea, 37 259 Dioscorea, 474 437 DIOSCOREACE^E, 474 437 Diospyros, 273 375 Dipholis, 274 367 Diphylleia, 17 246 Diplachne, 559 367 557 Diplopappus, Dipteracauthus, 206 303 333 Dirca, 395 249 Discopleura, 162 504 Dittany, 313 504 Dock, 385 505 Dodder, 346 435 Dodecatheon, 281 341 Dodonaea, 78 453 DODONE^;, 78 464 Dog's-tooth Violet, 483 272 Dogbane, 358 272 Dogwood 167 272 Dogwood Family 167 593 Dolichos, 109 Dolfchos, 106 564 Draba, 29 558 DracocepJialum, 322, 325 88 Dropseed-grass, 350, 352 93 Drosera, 36 124 DROSERACE^E, 36 251 Drjrpetes, 410 568 Duckweed, 442 396 Duckweed Family, 442 568 Dulichium, 513 298 Durra-Corn, 583 352 Duranta, 309 161 Dutchman's Breeches 22 497 325 Eatonia, 560 135 EBENACE^, 273 155 Ebony Family, 273 132 Echinacea, 226 9 Echinochloa, 577 26 Echinocaulon, 390 117 Echinodorus, 448 101 Echites, 359 150 Echites, 359 304 Echium, 331 340 Eclipta, 224 337 Eel-grass, 444 22 Egg-Plant, 349 318 Eglantine, 126 346 Ehretia, 329 341 EHRETIE^E, 328 INDEX. 609 Elder, 171 E volvulus, 345 Elecampane, 217 Exccecaria, 405 Eleocharis, 514 Exogenous Plants, 1 Elcphantopus, 188 Exostemma, 179 Elephant's foot, 188 Eleusine, 558 Fagus, 424 Eleusine, 558 False Acacia, 94 Elliottia, 273 False Foxglove, 298 Elm, 416 False Hellebore, 489 Elm Family, 416 False Mitrewort, 154 Elodea, 42 False Nettle, 414 Elymus, 567 False Rice, 548 Elymus, 567 Feather-grass, 554 Elytraria, 302 Fedia, 183 EMPETRACEJE, 410 Ferns, 585 Endogenous Plants, Enemion, 437 9 Ferula, Fescue-grass, 164 565 EPIDENDRE^:, 453 Festuca, 565 Epidendrum, 455 Festuca, 559 Epigoea, 261 FESTUCACE^:, 546 Epilobium, ^139 Fevenvort, 170 Epiphegus, EQUISETACEJE, 286 585 Ficus, Figwort. 415 288 Equisetum, 585 Figwort Family, "287 Eragrostis, Erechthites, 563 244 FILICES, 415 585 Erianthus, 582 Fimbristylis, 521 ERICACEJE, 257 Fir,, 434 ERICINE.E, 257 Fireweed, 244 Erigeron, 206 Flaveria, 238 Eriocaulon, 502 Flax, 62 Eriocaulon, 503, 504 Flax Family, 62 ERIOCAULONACE.33, 502 Fleabane, 206 Eriochsete, 524 Flower de Luce, 472 ERIOGONE^, 385 Flowering Fern, 598 Eriogonum, 392 FLOWERLESS PLANTS, 585 Eriophorum, 521 Fly-Poison, 490 Erithalis, 178 Fly-Trap, 37 Ernodia, 176 Forestiera, 370 Ervum, 98 FORESTIERE^E, 369 Eryngium, 159 Forget-me-not, 332 Erythrina, 106 Forsteronia, 359 Erythronium, 483 Fothergilla, 157 ESCALLONIE^J, 151 Four-o'clock Family, 372 Eugenia, 130 Foxtail-grass, 549 Euonymus, 76 Fragaria, 124 EUPATORIACE^E, 189 Frangula, 73 Eupatorium, 193 Franklinia, 60 Eupatorium, 197 Frasera, 357 Euphorbia, 400 FRAXINE^:, 369 EUPHORBIACEJE, 399 Fraxinus, 369 Eupolygonella, 386 Fringe-tree, 369 EUSMILACE^J, 475 Froelichia, 383 Eustachys, Eustoma, 557 355 Frog's-bit Family, Fuirena, 450 514 Euthamia, 214 FUMARIACE^E, 22 Eutoca, 335 Fumitory Family, 22 Euxolus, 380 Evening-Primrose, 138 Gaillardia, 238 Evening-Primrose Family, 137 GALACINE^E, 268 Everlasting, 243 Galactia, 108 610 INDEX. Galax, Galax Family, Galega, Galium, Gama-grass, Gardenia, Gaultheria, Gaura, Gaylussacia, Gelsemium, Gentian, Gentiana, GENTIANACE^E, Gentian Family, Georgia Bark, GERANIACE^E, Geranium, Geranium Family, Gerardia, Gerardia, Germander, Geum, Gilia^ Gillenia, Ginseng, Ginseng Family, Gleditschia, Glottidium, Glyceria, Glycine, Gnaphalium, Goat's Rue, Golden Club, Golden Osier, Golden Rod, Golden Saxifrage, GOMPHRENE.E, Gonolobus, Gonopyrum, GOODENIACE^E, Goodenia Family, Goodyera, Gooseberry, Goosefoot, Goosefoot Family, Gordon ia, Gossypium> Gouania, Gourd Family, GRAMINE^E, Grape, Grass Family, Grass of Parnassus, Gratiola, Gratiola, Gromwell, GROSSULACEJE, Ground Cherry, Ground Laurel, Groundsel, Guaiacum, 268 Guettarda, 178 268 Guinea Corn, 583 95 Gymnadenia, 458 173 580 Gymnopogon, GYMNOSPERM^, 556 431 179 Gymnostichum, 567 261 Gymnostylis, 243 137 Gynandropsis, 32 258 183 Habenaria, 461 355 H.EMODORACEJE, 469 355 Halesia, 271 352 HALORAGEJE, 137 352 Haloschcenus, 528 179 HAMAMELACE^E, 156 64 Hamamelis, 156 65 Hamelia, 178 64 Hamiltonia, 396 299 Haw, 171 298 Hawthorn, 126 327 Hazel-nut, 425 123 Heart's-ease, 33 339 Heath Family, 257,261 121 Hedeoma, 316 166 166 Hedge-Hyssop, Hedge-Mustard, 292 28 115 Hedge-Nettle, 326 97 Hedyotis, 181 560 HEDYSARE^E, 87 104, 105 Hedysarum, 101 243 Helenium, 239 95 Helianthella, 232 441 Helianthemum, 35 431 Helianthus, 228 208 Helianthus, 223 154 379 Heliophytum, Heliopsis, 330 225 368 HELIOTROPES, 328 387 Heliotropium, 330 255 HELLEBORINES, 2 255 Helonias, 489, 490, 491 463 Helosciadium, 162 145 Hemianthns, 295 376 Hemicarpha, 513 375 Hemp Family, 414 60 Hepatica, 5 58 Heracleum, 165 74 Herd's grass, 550 148 Herniaria, 47 545 Herpestis, 291 70 Herpestis, 295 545 Hesperis, 25 38 Heteropogon, 582 292 Heterotheca, 215 291, 294 Heterotropa, 371 331 Heuchera, 152 145 HIBISCE^B, 53 350 Hibiscus, 57 261 Hibiscus, 57 245 64 Hickory, Hieracium, 418 250 INDEX. 611 HlPPOCASTANEJE, 78 Impatiens, Hippomane, 404 Indian Hemp, Holly, 269 Indian Mallows, Holly Family, 2158 Indian Physic, Honey-Locust, 115 Indian Pipe, Honeysuckle, Honeysuckle Family, 170, 265 169 Indian Pipe Family, Indian Shot, Hop, 414 Indian Turnip, Hop-Hornbeam, 426 Indigo, Hop -tree, 66 Indigofera, HORDEACE.SS, 547 Inga, Horehound, 3-25 Inula, Hornbeam, 425 lodanthus, Horned Rush, 528 Ipomoea, Hornwort, 398 fpomoea, Hornwort Family, 398 Iresinastrum, Horse-Balm, 315 Iresine, Horse-Chestnut, 79 IRIDACE^E, Horse-Mint, 314, 320 Iris, Horsetail Family, 585 Iris Family, Hosackia, 91 Irish Potato, Hottonia, 279 Iron-weed, Hound's Tongue, 192,333 Isanthus, Houstonia, 180,181 Ismene, Huckleberry, 258, 259 Isoetes, Huclsonia, 36 Isolepis, Humulus, 414 Isopappus, Huntsman's Cup, 20 Isopyrum, Hydrangea, 155 Itea, HYDRANGIE^E, 151 Iva, Hvdrastis, HYDROCHARIDACE.2E, Hijdrocharis, Hydrochloa, Hydrocotyle, Ht/drocotyle, Hydrolea, HYDROLEACE^E, Hydrolea Family, Hadropeltis, HYDROPHYLLACE^E, 11 450 451 549 158 159 336' 336 336 19 333 Ixia, Jamaica Dogwood, Jamestown-Weed, Jacquemontia, Jaquinia, Jatropha, Jeffersonia, Jersey Tea, Jerusalem Artichoke, Jerusalem Cherry, Hydrophyllum, Hydropterides, Hymenocallis, Hymenopappus, HYMENOPHYLLE^E, Hyoseru, 334 602 467 238 587 250 J GWGI-WCGQ, JUGLANDACEJE, Juglans, JUNCACE^E, JUNCAGINE^), Juncus, •TuYicus Hypelate, HYPERICACE^E, Hypericum, 78 38 39 Juniper, Juniperus, Jussisea Hypobrychia, Hypopitys, 133 268 Justicia, Hypoporum, 532 Kallstromia, Hypoxys, 468 Kalmia, Hyptis, 312 IGdney-Bean, Knotweed, Ilex, 269 Kosteletzkya, ILLECEBRE^:, 45 Krameria, Illicium, 12 KRAMERIACE^E, Ilysanthes, 294 Krigia, 65 358 55 125 268 267 465 439 96 96 116,117 217 25 342 341 382 381 472 472 472 349 187 327 467 602 522 215 9 155 222 474 110 352 344 276 409 18 74 232 349 65 418 419 492 447 493 93, 495 435 435 140 304, 305 64 264 106 388 57 86 86 9 612 INDEX. Kuhnia, Kyllingia, Kyllingia, LABIATE, LABIATIFLOKJE, Lachnanthes, Lachnocaulonr Lactuca, Lady's Slipper, Lagerstroemia, Laguncularia, Lamb-Lettuce, Lamium, Lantuna, Laportea, Lappa, Larkspur, Lastrea, Lathyrus, LAURACEJE, Laurel, Laurel Family, Laurocerasus, LauruSj Lavatera, Leadwort, Lead wort Family, Leatherwood, Leavenworthia, Lechea, Leersia, LEGUMINOSJE, Leitneria, Lemna, LEMNACE^E, Lemon, LENTIBULACEJE, Leonotis, Leontice, Leonurus, Lepachys, Lepidium, Leptandra, Leptanthus, Leptocaulis, Leptochloa, Leptopoda, Lepuropetalon, Lettuce, Leucanthemum, Leucothoe, Liatris, Liatris, LlGULIFLOILE, Ligusticum, LILIACEJE, Lilium, 193 Lily Family, 512 Lily of the Valley, 514 Lime, Limnanthemum, 310 Limnobium, 187 Limnochloa, 469 Liniodorum, 503 LINACE^E, 252 Linaria, 464 Linden, 135 Linden Family, 136 Linderniat 183 Linum, 325 Liparis, 308 413 Lipocarpha, LIPOCARPHEJB, 248 Lippia, 9 Liquidambar, 594 Liriodendron, 99 Listera, 393 Lithospermum, 264 Liver-leaf, 393 Lizard's Tail, 120 Lizard's Tail Family, 393, 394 LOASACE^E, 56 Loasa Family, 279 Lobelia, 278 Lobelia Family, 395 LOBELIACEJE, 27 Loblolly Bay, 36 Locust, 548 LOGANIE^E, 86 Lolium, 427 LOMENTACE^E, 442 Long Moss, 442 Lonicera, 61 Loosestrife, 282 326 Loosestrife Family, Lophanthus, 17 Lophiola, 326 Lopseed, 228 LORANTHACE^, 30 LOTEJE, 295 Ludwigia, 497 Ludwigia, 161 Lupine, 558 Lupinus, 239 Luziola, 151 Luzula, 100 Lycium, 252 LYCOPODIACEJE, 242 Lycopodium, 261 Lycopus, 190 Lygodesmia, 190 187 Lygodium, Lime-grass, 163 Lyonia, 480 Lvsimachia, 484 LYTHRACE^, 484 Lythrum, 480 481 61 357 451 514 455 62 290 59 59 294 62 454 513 504 308 157 14 463 331 5 398 397 146 •146 253 253 253 60 94 173 568 24 470,472 170 134, 280 133 321 469 310 397 86 140 140 89 89 583 492 351 600 600 313 251 597 567 367 280 133 134 INDEX. 613 Macbridea, . 324 [ Mclilot, 90 Macranthera, 297 1 Melilotus, 90 Madder Family, 172 Melissa, 318 Magnolia, 13 Melothria, 148 Magnolia Family, MAGNOLIACE^E, 12 12 MENISPERMACE^E, Menispermum, 15 16 MAGXOLIEJE, 12 Menispermum, 16 Mahogany, 62 Mentha, 312 Mahogany Family, 62 Mentzelia, 146 Maiaiithemum, 481 Menzicsia, 265 Maiden-Hair, 590 Mercurialis, 410 Malachodendron, 61 Mertensia, 332 MALAXIDEJE, 452 Mctastelma, 366 Malaxis, 453,454 Mexican Poppy, 21 Mul low, Mallow Family, 53 52 Mezeretim Family, Micranthemum, 395 294 MALPIGHIACE^E, 81 Micromeria, 317 Malpighia Family, 81 Micropetalon, 49 Malva, 53 Microstylis, 453 Malva, 53,56 Mikania, 197 MALVACEAE, Malvastrum, 52 54 Mi Hum, 570, Mi Ik- Vetch, 572 97 Malva viscus, 58 Milkweed, 362 MALTESE, 52 Milkweed Family, 361 Mandrake, 18 Milkwort, 82 Mangrove, 135 Milkwort Family, 82 Mangrove Family, 135 Millet, 578 Manisuris, 580 Mimosa, 115 Maple, 80 Mimosa Family, 115 Maple .Family, 80 MIMOSE.S:, 88 Marginalia, 588 Mimulus, 291 M^rrubium, 325 Mimusops, 275 Maruta, 241 Mint, 312 Marshallia, 241 Mint Family, 310 Marsh-grass, Marsh Marigold, 556 9 Mistletoe, Mistletoe Family, 397 397 Marsh Pennywort, 158 Mitchella, 176 Mar?h Rosemary, 278 Mitella, 154 Marty nia, 285 Mitreola, 182 Mayaca, 498 Mitre wort, 154, 182 MAYACACE.E, 498 Mock Orange, 120 Mayaca Family, 498 Modiola, 56 May- Apple, 18 MOLLUGINEJS, 45 Maypop, 147 Mollugo, 48 May ten us, 77 Monanthochloe, 584 Mayweed, 241 Monarda, 320 Meadow-grass, 562 Monarda, 321 Meadow-Rue, 5 MONARDE^E, 311 Meadow-sweet, 120 Monkey-Flower, 291 Medeola, 479 Monk's hood, 10 Medicago, 90 Monocera, 558 Melampvrum, MKLANTHACE^I, 301 485 Monocotyledonous Plants, Monopctalous Exogenous Plants, 437 169 Melanthera, 225 Monotropa, 268 Melanthium, 488 MONOTROPEJ3, 258 Melastoma Family. 131 Moonseed, 16 MELASTOMACK&, 131 Moon wort, 599 Melia, 62 MO RACEME, 414 ME LI ACE M, 62 Morinda, 177 Melica, 560 Morn ing- Glory, 342 Melicocca, 79 Morus, 415 614 INDEX. Mothenvort, 326 Nyssa, 168 Mouse-ear, 50 Mouse-tail, 6 Oak, 420 Muhlenbergia, 552 Oak Family, 420 Muhlenbergia, 553 Obione, 377 Mulberry, 415 Obolaria, 357 Mulberry Family, 414 OCIMOIDE^, 310 Mulgedium, 252 Ocimum, 312 Mullein, 288 (Enothera, 138 Muscadine, Mustard Family, 71 23 Ogeechee Lime, Oil-nut, 168 396 MUTISIACE^, 248 Okra, 58 Myginda, 75 OLACACEJi; 61 Mylocarium, 273 Oldenlandia, 180 Myosotis, 332 Olea, 369 Myosotis, 333 OLEACE^E, 368 Myosurus, 6 OLEINEJE, 368 Myrica, 426 Olive, 369 MYRICACE^B, 426 Olive Family, 368 Myriophyllum, 143 ONAGRACEJE; 137 MYRSINACE.3!Jr 276 ONAGRACE.E, 137 Myrsine, 276 Onion, 482 Myrsine Family, 276 Onoclea, 596 MYRTACE^E, 130 Onosmodium, 331 Myrtle Family, 130 OPHIOGLOSSE^B, 587 Ophioglossum, 599 Nabalus, 250 Ophiorhiza, 182 NAIADACE^E, 444 OPHRYDE^E, 453 Naias, 444 Ophri/s, 464 Nama, 336 Oplotheca, 384 Nasturtium, 24 Opuntia, 144 Nectris, 19 Orache, 3V Negundo, 81 Orange, 61 NELUMBIACE^E, 18 Orange Family, 61 Nelumbium, 18 Orchard-grass, 564 Nelumbo, 18 ORCHIDACE^E, 452 Nelumbo Family, 18 Orchis, 458 Nemastylis, 474 Orel's, 459, 460 Nemophila, 334 Orchis Family, 452 NEOTTIE^E, 455 Ornithoqalum, 483 Nepeta, 321 OROBANCHACE^E, 286 NEPETE^E, 311 Orobanchet 286, 287 Nephrolepis, 596 Orontium, 441 Neptunia, 117 Orpine, 150 Nesaea, 134 Orpine Family, 149 Nettle, 412 Orthomeris, 205 Nettle-tree, 417 Orthopogon, 577 Neurophyllum, 165 ORYZE^E, 545 Neviusia, 121 Osmorrhiza, 166 Nicandra, 351 Osmunda, 598 Nicotiana, 352 OSM UNDINES, 587 Night-blooming Jessamine, 352 Ostrya, 426 Nightshade, Nightshade Family, 348 347 Otophvlla, OXALIDACE^E, 298 63 Nolina, 483 Oxalis, 63 Nondo, 163 Ox-eye Daisy, 242 Nuphar, • 20 Oxybaphus, 372 Nut-rush, 530 Oxycoccus, 259 NYCTAGINACE^;, 372 Oxydendrum, 263 Nymphspa, NYMPELEACE^E, 19 19 Oxytripolium, 205 INDEX. 615 Pachysandra, Paspalanthus, Palafoxia, PALM^E, Palmetto, Palms, Panax, Pancratium, PANICEJE, Panic-grass, Panicum, Panicum, PAPAVERACEJE, Papaw, Paper-Mulberry, PAPILIONACE^E, Papyrus, Parietaria, Parnassia, PARNASSIACE^E, Parnassia Family, Paronychia, Paronychia, Parsley Family, Parthenium, Paspalum, Passiflora, PASSIFLORACE^E, Passion-Flower, Passion-flower Family, Pavia, Pavonia, Peach, Pear, Pecan-nut, Pectis, Pedicularis, Pellrca, Pellitory, Peltandra, Penicillaria, Penthorum, Pentstemon, Pepper-grass, Persea, Persicaria, Persimmon, Petalostemon, Petiveria, PETIVERIE<®, Petunia, Phaca, Phacelia, Phrenogamous Plants, Phalangium, PHALARIDE 396 TURNERACE^, Thistle, 246 Twin-Leaf, Thorn-Apple, 352 Twisted Orchis, Thoroughwort, Thuja, , THYMELEACE^E, 193 436 395 Typha, TYPHACE^l, Thyrsanthus, 95 Udora, Thvsanella, 391 ULMACE^E, Tiarella, 154 Ulmus, Tiedemannia, 164 UMBELLIFER^I, Tilia, 59 Umbrella-Tree, TILIACE^J, 59 Unicorn-Plant, Tillandsia, 470 Uniola, Timothy, 550 Uniola, Tiniaria, 390 Uralepis, Tipularia, 456 [IRENES, Titi, 273 Urtica, Toad-Flax, 290 Urlica, Tobacco, 352 URTICACE^E, Tofieldia, 491 Utricularia, 349 68 67 436 66 26 329 65 390 498 406 6 455 492 64 522 553 551 521 597 327 559 90 447 475 477 475 170 457 559 580 580 451, 452 568 285 20 184 480 14 147 146 146 18 461 443 443 450 -416 416 157 13 285 556 562 560 53 412 413 411 282 620 INDEX. Uvaria, Uvularia, UVULAKIE^J, VACCINIE^J, Vaccinium, Vaccinium, VALERIANACE^E, Valeriana, Valerian Family, Vallesia, Vallisneria, Veratrum, Veratrum, Verbascum, Verbena, VERBENACE^E, VERBENE.E, Verbesina, Vernonia, VERNONIACE.SJ, Veronica, Vervain, Vervain Family, Vescicaria, Vetch, Viburnum, Vicia, VICIE^J, Vigna, Vignea, Vilfa, Vinca, Vine, Vine Family, Viola, Viola' VIOLACE^E, Violet, Violet Family, Virgaurea, T7-. ° , j , ' Virydia, Virginian Creeper, Virgin's Bower, FZ'SCMTH, VITACEJS, VlTE^E, Vitis, Vitis-Idrea, Vittaria, VlTTARIEJE, Waldsteinia, Walking Leaf, Walnut, Walnut Family, Waltheria, Wampee, Warea, Watches, Water-Chinquapin, 15 486 450 Water-Cress, Water-Fern Family, Water-Hemlock, 24 €02 161 Water-Leaf, 334 257 Water-Leaf Family, 333 259 Water-Lily, 19 258 Water-Lily Family, 19 183 Water-Milfoil, 143 183 Water-Plantain, 447 183 Water-Plantain Family, 447 360 Water-Shield, 19 450 489 Water-Shield Family, Water- Stanvort, 18 399 484 288 Water- Star wort Family, Wax-Myrtle, 398 426 306 Wax-Myrtle Family, 426 305 Whahoo, 417 306 White Poplar, 14 237 187 Whortleberry Family, Wicky, 258 264 187 Wild Flax, 62 295 Wild Rice, 549 306 Willow, 429 305 Willow Family, 429 29 Willow-Herb, 139 98 Wind-Flower, 4 171 WINTERED, 12 98 Wintergreen, 261 87 Wire-grass, 550, 554 106 Wistaria, 95 533 Witch-Hazel, 156 550 Witch-Hazel Family, 156 360 Wolfsbane, 10 70 Woodbine, 170 70 Wood-Rush, 492 33 Woodsia, 596 35 WOODSIE.E, 587 32 Wood-Sorrel, 63 33 Wood-Sorrel Family, 63 32 Woodwardia, 591 208 Wormseed, 377 113 Wormwood, 242 72 3 Xanthium, 223 397 Xanthesmia, 440 70 Xerophyllum, 490 306 Xinienia, 61 70 Ximenia Family, 61 259 XYRIDACE^E, 499 589 Xyris, 499 586 — • Yam, 474 123 Yam Family, 474 591 Yarrow, 242 419 418 59 Yellow-eyed grass, Yellow-eyed grass Family, Yellow Jessamine, 499 499 183 496 Yellow Water-Lily, 20 28 Yellow Wood, 113 21 Yew, 436 18 Yucca, 485 INDEX. 621 Zamia, Zannichellia, Zanthorhiza, Zanthoxylum, Zapania, Zigadcnus, Zinnia, 437 445 11 66 308 488 225 Zizania, Zizia, Zizyphus, Zornia, Zostera, ZYGOPHYLLACE^E, 549 549 163 72, 73 99 444 63 THK RETURN BXOGY LIBRARY TO— +> LOAN PERIOD! * BIOSCIENCES LIBRARY 40 Giannini Hail BH 642-2531 T 4 5 6 ALL BOOKS MAY BE RECALLED AFTER 7 DAYS Renewed books are subject to immediate recall DUE AS STAMPED BELOW 9?^ FEB/is WB QQ?( UNIV OFC/»'fr ^ wf . 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