. (1314 -'W- DESCRIPTIVE AND ANALYTICAL BOTANY LONDON : PRINTED BY 6POTTISWOODE AND CO.. NEW-STItEET SQUARE AND PARLIAMENT STREET A GENERAL SYSTEM of BOTANY DESCRIPTIVE and ANALYTICAL. IN TWO PARTS. PART I.— OUTLINES OF ORGANOGRAPHY, ANATOMY, AND PHYSIOLOGY. PART II.— DESCRIPTIONS AND ILLUSTRATIONS OF THE ORDERS. BY Emm. LE MAOUT, J. DECAISNE, DOCTOR OF MEDICINE ; MEMBER OF THE BOClfiTfi PHILOMATHIQUE OF PARIS. MEMBER OF THE INSTITUTE OF FRANCE; PROFESSOR OF CULTIVATION, JARDIN DES PLANTES, PARIS. WITH 5500 FIGURES BY L. STEINHEIL AND A. RIOCREUX. TRANSLATED FROM THE ORIGINAL BY MRS. HOOKER. THE ORDERS ARRANGED AFTER THE METHOD FOLLOWED IN THE UNIVERSITIES AND SCHOOLS OF dREAT BRITAIN, ITS COLONIES, AMERICA, AND INDIA'; WITH ADDITIONS, AN APPENDIX ON THE NATURAL METHOD, AND A SYNOPSIS OF THE ORDERS, BY J. D. HOOKER, C.B., F.R.S. L.S. & G.S., M.D., D.C.L. Oxon., LL.D. Cantab. DIRECTOR OK THE ROYAL BOTANICAL GARDENS, JCEW ; CORRESPONDENT OF THE INSTITUTE OF FRANCE. LONDON : LONGMANS, GREEN, AND CO. 1873. All rights reserved. TO THE MEMORY OF THE JUSSIEUS, A ND TO THE DISTINGUISHED EXPOUNDER OF THEIR DOCTRINES, M. ADOLPHE BRONGNIART, MEMBER OF THE INSTITUTE OF FRANCE ! PROFESSOR OF BOTANY AT THE JARDIN DES PLANTES. EDITOE’S PEEFACE. This English reproduction of Le Maout and Decaisne’s work differs from the original published in Paris in 1868, first and mainly in the Natural Orders of Flowering Plants being arranged more nearly in the sequence followed in England and its dependencies, in the United States, and over the greater part of the Continent : — a course necessary to adapt it to the use of schools, universities, and the keepers of herbariums, botanical museums and gardens, in all English-speaking countries. This sequence, which is that originally proposed by De Candolle, and adopted with modifications by himself and by most classifiers, is further, in the opinion of the Editor, on the whole, the best linear arrangement hitherto devised. The sequence of the Orders followed in the original is that of the late accomplished Professor Adrien de Jussieu, son of Antoine- Laurent de Jussieu, the establisher of the Natural Orders of Plants upon the principles his uncle Bernard had devised. This sequence has been but partially adopted, even in Paris, where, although the lectures on the Natural Orders given at the J'ardin des Plantes are conducted in accordance with it, the plants in the garden itself are arranged according to that of Professor Adolphe Brongniart (see p. 165). To render this part of the work complete, and to facilitate its use,’ I have added in an Appendix — what is a great desideratum in the original — a Conspectus of the Orders arranged under groups (cohorts), accord- ing to their affinities, in so far as this is practicable in a ^linear series. These groups are analogous to the ‘ alliances ! devised by Bindley, for his EDITOR’S PREFACE. viii ‘ Vegetable Kingdom,’ though widely differing from them ; they more nearly approach the ‘ groups ’ of Asa Gray’s ‘ Introduction to Botany,’ and are identical with the ‘ cohorts ’ of Mr. Benthaui’s and my ‘ Genera Plantarum ’ in so far as these have been published, namely, to the end of Polypetalce. The remaining Dicotyledonous Orders are grouped approximately by Mr. Bentham and myself, and are subject to rectification as we advance with our analyses of the genera for that work ; for it must be borne in mind that no Natural Order or higher group can be accurately limited till all the genera belonging to itself and its allied groups have been thoroughly investigated, compared, and contrasted. For the grouping of the Monocotyledons I am alone responsible. The next considerable deviation from the original consists in the intro- duction of various omitted Orders, and of much additional matter under the others, especially the tribes, sub-tribes, etc., of the large Orders, and in the increased numbers of genera (the selection of which is necessarily to some extent arbitrary) which have been cited. This will render the English edition more useful to voyagers and travellers, and 'to dwellers in America, India and the Colonies, whose requirements in this respect have been especially regarded. The twenty-four Orders omitted in the original, and supplied here, are chiefly small ones ; but some, as xx., xxxiv., lvii., lxxiv., xcii., clxvii., and ccxxi., are either of considerable extent, or of importance under other points of view. They are as follow : — XX. Canellace^e. CLXXXIX. HeRNANDIEyE. XXIV. VoCHYSIACEyE. CCIV. PeNyEaceyE. XXXIV. DiPTEROCARPEyE. CCV. GeISSOLOMEyE. XXXV. ChLyENACEyE. CCVI. LaCISTEMACEyE. LVII. BuRSERACEyE. ccxv. Grubbiace.e. LIX. ChAILLETIACEyE. CCXXI. PoDOSTEMACEyE. LXV. LXXII. StACKHOUSIEyE. Sabiaceje. M 0N0G01 'YLEU ON 8. LXXIV. CoNNARACEyE. VII. ApostasiaceyE. XCII. Rhizophoreye. XVI. TriuridEyE. CII. SaMYDACEyE. XLII. RoxburghiaoeyE. CX. FicoideyE. XLV. RaPATEEyE. CLXVII. CrESCENTIEyE. XLIX. MaYACEyE. EDITOE’S PEEFACE. ix The number of Orders adopted in this work greatly exceeds that which will be adopted by Mr. Bentham and myself in the ‘ Genera Plantarum,’ or than is accepted by Professor Asa Gray, and most modern systematists : many of them are not in our opinion entitled to that rank, being rather to be regarded as tribes or aberrant genera of larger Orders. A multiplica- tion of these is, however, in a work of this description far from a great evil : it enables the student to form a clearer idea of the essential characters of the more important Orders, from which the lesser are departures ; and it affords the opportunity of illustrating more copiously many structural and physiological matters of high importance. It will be observed that the authors have been scrupulously careful in indicating the very slender pre- tensions that many of these lesser groups have to ordinal rank, and in pointing out their affinities. In dealing with the Introduction to Botany, p. 1, the Translator has had much difficulty. In point of style, a literal translation of the original was inadmissible ; its copiousness of expression and repetitions of adjective terms, however suited to French, are obstacles to English students, who associate clearness with a concise, rather than with a more diffuse method of exposition. The Translator has therefore condensed the matter of this part of the work — it is to be hoped, without loss of sense or substance ; and the space gained has been devoted to those additions to the Systematic portion which are enumerated above. It will be obvious to the English reader, that it has not been the aim of the Authors to give an exhaustive history of the Natural Orders : what they have given is a clear and precise structural and morphological account of each, with a sketch of its affinities, geographical distribution, and principal uses in medicine and the arts ; and in this, I think, they have succeeded to a degree not attained in any previous work of the kind. On the extent and utility of the Illustrations there is no need to dwell ; but it is only my duty to one of the Authors to state (which does not appear in the original) that their great value is due to the use made of my friend M. Decaisne’s unique collection of analytical drawings, the fruits of his life-long botanical labours, and which for scientific accuracy and artistic excellence have never been surpassed. a X EDITOR’S PREFACE. Nearly thirty years have elapsed since I first had the privilege of inspecting those portfolios, the contents of which have, with a rare liberality, been ever since placed at my disposal when desired. Few or no allusions are made under the Natural Orders to histological characters ; to the differentiation and development of the organs ; to the phenomena of fertilization ; to the functions of nutrition, circulation, and respiration ; nor to the structural characters of Fossil Types, which, in the case of a few Orders (chiefly Cycadece and Lycopodiacece ), are of great signi- ficance in reference to these and their allies. To have introduced all these subjects to any useful purpose was beyond the scope of this work. A companion volume devoted to them — that is, one completing the Life-history of the Natural Orders — is the great desideratum of Botanical Science. It remains for the Editor and Translator to thank the Authors for their confidence, both in entrusting them with the task, and in liberally per- mitting the re-arrangement of the Orders according to the Editor’s judgment of the requirements of those for whose use the English version is made. Royal Gardens, Kew : December 1872. Jos. D. Hooker. PEE FAC E . The First Part of this work, together with the woodcuts illustrating the Natural Orders, is a reprint of the ‘Atlas Elementaire de la Botanique,7 edited by one of the Authors some years ago, and which has been favourably re- ceived by the scientific public. This, however, being devoted to European Orders, and confined to brief systematic descriptions only of these, could not illustrate the affinities of all the known types of the Vegetable Kingdom. To supply this deficiency, we have here added nearly all the exotic Orders, with detailed descriptions of their affinities and uses ; so as to give such a general view of the Vegetable Kingdom as may be advantageously consulted by students and professed botanists. For the sequence of the Orders we have followed the classification of A. de Jussieu1 in the valuable article on Taxonomy in the ‘ Dictionnaire ETniversel,7 simply inverting the series, so as to commence with the most highly organized, and end with the Families of lowest organization, whose history is still obscure. The reader will observe that we have treated the Monocotyledons and Cryptogams with greater fulness than the Dicotyledons : this is because the two first, and especially the Cryptogams, having hitherto been much less fully studied than the Dicotyledons, required much more careful illustration. We have also thought it best to detach from the larger groups many monotypic Orders, so as to give them greater prominence ; following in this 1 In this English edition the Editor has, with bodies of Great Britain, as well as of working bo- the approval of the authors, adopted that modifi- tanists, herbarium keepers, &c. A sketch of A. de cation of the elder Jussieu’s system known as De Jussieu’s sequence of the Families will he found in Candolle’s, in order to suit the convenience of the the chapter devoted to Taxonomy (p. 167 ; see also Universities, Medical Schools, and other educational p. 988). PREFACE. xii the example of our predecessors, who have appended the Genera affinia to the more strictly defined Orders. Nearly all the illustrative analyses are original, and founded on materials accumulated during upwards of thirty years ; for all details taken from other sources the authority is cited. Whilst thus presenting to our readers a comparative history of the Orders of Plants, we make no pretensions to having monographed them ; for such a task twenty volumes would not suffice, and its execution is already far advanced, thanks to the many first-class works which may be consulted by those who desire to investigate all the phenomena of the Vegetable King- dom. We have therefore restricted ourselves, in the departments of Anatomy and Physiology, to general considerations, and must refer our readers to the work of Duchartre for a detailed and lucid account of the present state of these two branches ; and to the ‘ Genera Plantarum ’ of Bentham and Hooker for all the elements of a complete treatise on Systematic Botany. On the subject of Geographical Distribution, the remarkable work of A. de Candolle contains an invaluable repertory of accurate data ; its value being enhanced by philosophical disquisitions of the highest order. WTith regard to the series of portraits of Plants contained in this work, it is the richest and best arranged which has hitherto appeared ; and we are confident that the public will appreciate, in these faithful drawings, the truthful pencils of Messrs. Steinheil and Riocreux. ABBREVIATIONS. ^ Flowers with stamens and pistils (complete or hermaphrodite), d* Flowers with stamens only (male or antlieriferous). § Flowers with pistils only (female or pistilliferous). oo Indefinite in number. m. Magnified. * Before a genus, signifies that it is commonly to be found in French Botanic Gardens, &c. Note. — Sub placed before another word means nearly , somewhat, scarcely, &c. The words rarely, sometimes, often, usually, &c., preceding a descriptive phrase, do not apply to varia tions occurring in the same species, but signify that such variations occur in different genera of the Family under consideration. The special terms used in the descriptions of Acotyledons .are explained in the text as they occur. INTRODUCTORY CHAPTER. Plaxts are organized living beings, void of feeling and voluntary motion ; they constitute the Vegetable Kingdom ; and Botany, which is the natural history of the Vegetable Kingdom, treats of plants, firstly, individually; secondly, collective]3r ; and thirdly, with regard to their uses to man. The whole subject may be con- sidered under thi'ee principal heads. The first includes Organography, which treats of the form and symmetry of the organs of plants ; Anatomy, of their interior structure ; Physiology, of their func- tions; and Glossology, of the technical language employed to describe the organs and their modifications. The second includes Taxonomy, the classing of plants according to their affinities ; Phytography, the description of species ; and Nomenclature, the names given to species by botanists. The third includes Agriculture, Horticulture, Arboriculture, Medical and Economic Botany. The tissues of a plant present to the naked eye two very distinct elements, named jibro-vasctdar bundles and cellular tissue ( parenchyma ). The first consists of tenacious fibres gathered into bundles, or spread out like network, and forming the more solid portion of the plant ; the second is a spongy, succulent substance filling the spaces between the fibres, being especially abundant in leaves and fleshy fruits, and constituting the softer portion of the plant. When magnified, these tissues present various structures, the components of which, called elementary organs, will be described in a future chapter. An ordinary plant consists of a cylindric body (fig. 1), more or less branched at its two extremities, and bearing laterally leaves of various forms, which are either scattered or grouped. The upper portion of this body, the stem (caidis, t), bears the leaves (f, f), and is green (at least in the young shoots) ; it branches from the ground upwards, diminishing in thickness as it branches. The lower portion, the root {radix, r), is leafless and subterranean, of a pale colour, and branches from above downwards, diminishing in thickness the deeper it penetrates the earth. Thus the stem and root are united where their girth is greatest, and are deve- loped in opposite directions ; the former always tends to ascend, and the lower to B 1. Stock. Root and lower portion of stem. V 2 INTRODUCTORY CHAPTER. descend, and they together constitute the vegetable axis. In its early stage this axis is simple, but by successive growths it usually gives oft' branches, which form secondary axes ; each branch may thus be regarded as an independent axis. The point of junction of the stem and root is the neck ( collum , c). It is from this point, which may be thickened, shortened, or obscure, that the ascending fibres of the stem and the descending fibres of the root diverge. The stem, which alone possesses the power of emitting lateral expansions, develops from its sides more or less Battened bodies, the leaves (f). The point at which the leaves issue from the stem is generally thickened, and is termed a node (nodus) ; the intervals between the nodes are termed internodes ( internodium , m,erithallus) . When the nodes develop leaves only, the stem remains perfectly simple or unbranched ; but at each node a bud (gemma, B, b) may spring from the axil of the leaf ; and this bud, which appears at first as a small protuberance, afterwards becomes a branch (ramus), which lengthens, develops leaves, and ramifies in its turn. The buds springing from the axils of the leaves on the primitive axis thus give origin to as many fresh axes, whence it results that the mother-plant is repeated by every bud which it produces. Hence it is more logical to say that a plant multiplies, than that it divides bjr branching ; and a vegetable may thus be looked upon, not as an individual, but as a collective being, or an aggregation of individuals nourished in common, like the zoophytes of a coral. The node does not always produce a leaf and bud; the bud may be absent or scarcely visible, or the leaf may be imperfectly developed : but the latter is rarely entirely suppressed; and when the bud is undeveloped, it is owing to the rigour of the climate or the short duration of the plant. Leaves are not developed promiscuously on the stem ; they may be given off singly, when they are alternate ( alterna , fig. 2) ; or two may be placed opposite to each other ( opposita , fig. 3) ; or they may be whorled around the stem (verticillata. 2. Toad-flax. Alternate leaves. 3. St. John’s Wort. Opposite leaves. 4. Madder. Whorled leaves. fig. 4). Stem-leaves are rarely whorled, but floral leaves are arranged in several superimposed whorls (verticilli). Alternate leaves, though apparently scattered without order on the axis, are really arranged in a spiral (fig. 5) ; so that, in starting from any one leaf (1), we arrive, after one or more turns of the spiral, at another leaf (6), placed INTRODUCTORY CHAPTER. 3 directly above the first ; whence it results that, if the leaves completing the spiral (1, 2, 3, 4, 5) were all placed on a level with the first, they would form a whorl around the stem. This arrangement is more easily traced on young branches of trees than on herbaceous stems. The fibro- vascular bundle connecting the green expansion of the leaf with the stem is the petiole ( petiolus , fig. 6). It extends from the axis to the blade or limb 5. Oak. Branch. 7. Wallflower. Flower. (limbus, lamina), which is composed of parenchyma and fibro- vascular bundles, which latter form the nerves ( nervi , 1, 2, 3). The middle nerve of the limb, which is continuous with the petiole, is the median nerve or midrib (n. medius, costa media). The bundles which rise from each side of the midrib are the lateral nerves (n. late - rales ) ; and these again give rise to secondary (2), tertiary (3), &c. nerves, according to their subdivision. A leaf springing directly from the stem without a 'petiole is sessile (/. sessile, figs. 2-4), and that with a petiole is petiolate (f. petiolatum, figs. 5, 6). The leaf- blade is protected on both surfaces by a thin, colourless, and transparent skin (epidermis), which covers almost the entire plant, and will be described later. The coloured leaves, arranged in whorls at the extremities of the ultimate branches of the axis, together form the flower ( flos , fig. 7). The branch which immediately bears a flower, and forms the axis of its component whorls, is its peduncle or pedicel (pedunculus, pedicellus, fig. 7, Ped). Its more or less swollen extremity, upon which the whorls of the flower are grouped, is the receptacle (receptacidum, fig. 10, r). In the most fully developed plants the flower is usually comjmsed of four successive whorls (fig. 7), of which the internodes are suppressed. The outer or lower whorl is the calyx (calyx, figs. 7, s, and 8), the leaves of which are sepals (sepala, fig. 8). The whorl within or above the calyx is the corolla (corolla, fig. 7, p), and its leaves are petals (petala, fig. 9). When a petal is not sessile, but has its blade (l) borne on a petiole (o), this petiole is called the claw ( unyuis ). B 2 4 INTRODUCTORY CHAPTER. Tlie whorl within or above the corolla is the andrcecium (andrcecium, figs. 7, E, and 10), and its leaves are stamens ( stamina , figs. 10, e, and 11). The petiole of the stamen is the filament ( filament um ), and its blade is the anther ( anthera ). The dusty parenchyma contained in the anther is called pollen ( pollen , p). This pollen leaves the anther at a certain period, and, falling on the central Organ of the flower, assists Anflrccciimi and pistil (maj.). Staineu (mag.), in the formation of the seed. There frequently occur on the receptacle (fig. 10, r) small bodies (gl) which secrete a sweet juice, named nectariferous glands or nectaries ( glandules nectariferce, nectaria). The whorl within or above the andrcecium is the pistil (pis t ilium, fig. 12) o 8. Wallflower. Calyx (mag.). 9. Wallflower. Petal. lo. Wallflower. 11. Wallflower. This, 12. Columbine. Pistil composed of 5 carpels, with the scars of the stamens on the receptacle u. 1-3. Columbine. Pipe carpel partially opened at the top. 15. Apricot. Pistil cut vertically (mag.), showing the suspended ovule D, v, s»igma s, and axis of style T, traversed by the pollen to fertilize the ovule. the central or last of the floral whorls, is composed of one or more leaves called carpels ( carpidia , carpella, fig. 13), bearing on their edges small bodies called ovules ( ovula ), destined to reproduce the plant when fertilized by the pollen. The blade of the carpel, which encloses and protects the ovules, is the ovary ( ovarium, , fig. 12, o) ; its prolongation upwards into a longer or shorter neck is the style ( stylus , t) ; and the stigma (stigma, s) is an organ of variable form, spongy and viscous when young, usually placed on the top of the style, and destined to receive the pollen, which adheres to its surface. The substance of an ordinary leaf, however thin, consists of thi’ee parts : (1) an upper and (2) an under surface, enclosing (3) a network of fibres and paren- chyma; and a slight inspection will show that a carpellary leaf is constructed on the same plan. Thus in the Pea, the pistil of which is composed of a single carpel, which splits into halves when ripe (fig. 14), the outer portion of the leaf (e) is a thin skin, easily torn awa.y, named epicarp (epicarpium). The inner portion (f.n) INTRODUCTORY CHAPTER. 5 consists of a thicker and paler membrane than the first, named endocarp {endocar- dium). The intermediate portion consists of a more or less succulent tissue (accord- ing to the proportions of fibre and parenchyma), named mesocarp ( mesocarpium ). In the solitary carpel which forms the pistil of a Cherry (fig. 16), Peach, or' Apricot (fig. 15), the epicarp (f) is a thin skin, the mesocarp (figs. 16, me, and 15, e) is very thick and succulent when ripe, and the very hard endocarp (figs. 16, n, and 15, d) forms the stone. The fibro-vascnlar bundles (fig. 14, l) which are found on the edges of the blade of the carpellary leal, and which both bear the ovules (o) and transmit nourishment to them, are called the •placentce {placentae, trophospermia) . Each placenta produces lateral branches or cords, called funicles {funiculi, f), which are sometimes very short, and through which the nourishing juices are conveyed to the seeds. When the funicles are absent (Sg. 13), nourishment is transmitted directly to the seed from the placenta. The seed or plant-egg (semen, fig. 1 7) is the ovule fertilized by the pollen. It is composed, (1) of a very small body, destined to reproduce the plant, the embryo (or plamtula ) ; (2) of an envelope or integument surrounding and protecting the embryo. This integument (in the ovule) either originates from the top of the funicle (fig. 17, f), or directly Rom the placenta (fig. 13). It usually consists of two layers or coats, an external testa- (fig. 17, i), and an internal endopleura (e). The point of union of the seed and funicle, and at which its nourishment enters, is called the hilum or umbilicus (fig. 18, h), and is a part of the testa. The clialaza (fig. 17, h) marks the spot where the juices penetrate the internal coat and reach the Ripe carpel, cut vertically, showing the seed suspended by a funicle c springing from the bottom of the kernel. 17. Pea. Seel deprived of half its integument (mag.). IS. Pea. C R C Part of the in- tegument of the seed (mag.). 19. Pea. Embryo spread open (mag.). embryo, and is usually indicated on the outside by a projection or thickening or discoloration. When the hilum and chalaza are superimposed, the juices reach the embryo directly ; when they are at opposite ends, they are connected by a small cord, raphe (figs. 17, a, and 18, n), which runs between the two coats. The small opening through which the ovule is acted on by the pollen is the micropyle (figs. 17, and 18, m). The embryo (figs. 17, 19) is a complete plant in miniature, composed of a stem, caulicle {tigellus, cauliculus, t), a root, radicle (radicula, r), one or two leaves, coty- ledons {cotyledones, c), and a bud, plumule { gemmula , plumula, g), usually occupying a small pit (f) sunk in the thickness of the cotyledons. The young plant, after having been nourished by the juices transmitted through the funicle, detaches 6 INTRODUCTORY CHAPTER. itself from tlie latter with its integuments ; and when placed under favourable circumstances, it sheds or leaves its coats, and becomes developed into a plant similar to its parent. The caulicle (t) is a small cylindric or conical body, hearing the first leaves of the plant (fig. 19, c), which ascends to form the stem. The radicle (it), or organ destined to develop the roots, is at first merely a transparent point terminating the free end of the caulicle, and tending downwards ; it usually corresponds in the seed to the position of the micropyle (figs. 17, 18). The cotyledons (figs. 17, and 19, c), which are the first leaves of the young plant, spring laterally from the caulicle, and protect the plumule, or first shoot of the future plant ; they are usually thick and succulent, and nourish the young plant until it is able to support itself. Within the integuments of the seed there always exists, at an early period, a peculiar form of cellular tissue, the study of which is important, and to which we shall recur; it is sometimes rapidly absorbed by the embryo, but at others it is retained in the seed until germination, in which case it is called albumen, and supplies the young- plant with its first food. Considering the emhrj-o as the plant in its simplest form, let us follow the growth and lateral development of its primitive axis. The two first leaves ( cotyledons ) are attached to the small stem [caulicle), as may be seen in the Pea (fig. 19), or, better, in a germinating Bean (fig. 20, c, c). The radicle, which terminates the free end of the caulicle c (fig. 20, t), sends out many descending branches, and forms the root (r). Sometimes the coty- ledon is solitary, as in the Maize (fig. 21, c), when the rootlets usually spring from various points of the caulicle ( t ), and branch very little. At the point of union of the cotyledons or p> cotyledon with the caulicle is the plumule (fig. 20, g, g, and fig. 21, g). Each cotyledon and 20. Germination of Kidney- eacp ]eaf 0f the plumule is produced frOIU a node, but the internodes are scarcely visible. 2I- Gclmiliat,on of Ma,ze- Soon after germination, as the plant grows and the axis lengthens, the nodes, and consequently the leaves, become separated. Near the flower the internodes of the axis shorten, the leaves usually become smaller and changed in form and colour; finally, at the termination of the axis, the leaves [flower), instead of forming a spiral or being placed in pairs, are arranged in superimposed whorls of different structure, the leaves in each whorl usually alternating with those of the next within or above it; which results in the blades of the different leaves composing the flower being separated as far as is compatible with being crowded in a very small space. The leaves of the' three first floral whorls (sepals, petals, stamens) have no buds in their axils or on their edges ; those of the pistil alone ( carpels ) produce and protect buds ; each edge of the carpel ( placenta ) giving origin to cords, which INTRODUCTORY CHAPTER. / convey nourishment to one or more seed-buds (ovules), which eventually become seeds, consisting of an embryo with its integuments, which is destined to produce a plant similar to its parent. Though so dissimilar, the ovule or seed-bud presents a remarkable analogy to an ordinary bud : both spring from a node, and are protected by a leaf ; both are destined to reproduce the plant. They only differ in the conditions of their existence : the seed-bud needing for its development the fertilizing action of the pollen ; the brancli-bud, needing only the nourishment contributed by the node. To this must be added, that the branch-bud multiplies the plant without separating from it ; whiht the seed-bud is destined to leave its parent, and reproduce at a distance the plant which gave it birth. In some cases the branch-bud may be separated from its parent, and made to germinate, which is due to the power which the stem possesses of emitting from its surface supplementary or adventitious roots (r. adventitial) . Sometimes a young branch, with its buds, may be detached from the stem, and planted, -when the buried portion speedily sends forth roots, and the new individual becomes an independent organism: this is called propagating by slips or cuttings ( talea ). Or the branch, still attached to the trunk, may be surrounded with damp mould, into which it emits roots, which soon become sufficiently strong to nourish the branch, and to permit of its removal from its parent stem : this is termed propagation by layers (malleoli). Or again, the branch, with its buds, may be separated from its parent, and so attached to another plant, whose sap resembles its own, as to bring into contact the parts in which the sap circulates; the branch then glows as if on its parent : this is called propagation by grafts, and the plant on which the branch is grafted is called the stock. Lastly, the branch-bud may separate spontaneously from the. parent like a seed-bud, and falling to the ground, may strike root and become a separate individual, as in the Tiger-lily (fig. 22, b) : such branch-buds are called bulbils (bulbilli). The power of producing (naturally or artificially) buds and adventitious roots is not confined to the stem, the branches of many plants having also this power. The physiolo- gist Duhamel, having planted a tree with its branches in the ground, saw the roots become covered with buds, while the buried branches produced roots. 22. Bnlbiferous Lily. Ell SOUlC Cases tllC divided root 23. Bryophythim. Portion of stem. ... , . Leaf giving off embry os at each erenature. will reproduce the plant, as 111 the Japan Quince, the Osage Orange (Madurai) , and especially the Paulownia, the roots of which may be cut into small sections, each of which, if planted, will produce a perfect tree. In some plants the leaf itself possesses this reproductive power, as in the Watercress, Cardamine pratensis, and Malaxis, &c., amongst native plants ; and amongst exotics, Bryophyllum calycinum (fig. 23), a succulent tropical plant, whose 8 INTRODUCTORY CHAPTER. leaf produces buds furnished with root, stem, and leaves, at the extremities of its lateral nerves ; these buds, which spontaneously fall off, and root in the earth, may be likened to embryos that do not need to be fertilized before developing ; and the leaf of Bryophyllum may be regarded as an open carpel, on which the seeds have been developed by nutritive action alone. This fecundity of Bryophyllum completes the analogy between the true bud and the fertilized embryo. Amongst the examples of reproduction by leaves, the Begonias hold the first rank; for if a Begonia leaf be placed on damp soil, and incisions made across its nerves, roots and buds will spring from every incision, and as many fresh plants will be obtained as the leaf has received wounds. The same vitalitv is observable */ in some woody plants : thus, if a fresli-cut Orange leaf be placed under suitable conditions of heat and moisture, a small swelling will be formed on the broken petiole, from which will shortly spring roots and shoots, that will eventually form a tree, capable of growing, flowering, and fruiting, like an Orange-tree raised from seed. In this brief summary we have only spoken of the structure of the higher plants, whose organs of fructification being obvious, and their seeds provided with mono- or di-cotyledonous embryos, are called cotyledonous or pheenogamous (p. cotyleclonece v. 'pheenerogamoe). Other plants, which have no obvious stamens or pistils, and seeds fvitliout embryos, are called cryptogamous or Acotyledonous (p. cryptogameee v. acoty- ledonece), and are of much simpler organization. ORGANOGRAPHY AND GLOSSOLOGY. THE ROOT. The root (radix) is that part of the plant which tends towards the centre of the earth ; it is not coloured green, even when exposed to light, and rarely produces leaves or shoots. It serves to fix the plant in the earth, and to draw thence the nourishment necessary to its growth. The root is absent in certain plants, which, from growing upon and drawing their nourishment from others, are called parasites (p. para sit icce). Such is the Mistleto, which fixes itself beneath the bark of certain trees by the dilated base of its stem. The root may be simple, or irregularly branched. Its axis or branches termi- nate in delicate fibrils, which together are termed the root-fbres ( Jibrillet ) ; the 24. Carrot. 25. Meadow-grass. 2(1 Dropwort. 27. Dahlia. Tuberous root. 28. Orchis. Tapering root. Fibrous root. Nodose root. Fibrous-tuberous root. tips of these fibres, being soft, loose, and cellular, are named spongioles (spongiolce) . The individual fibrils die annually, like leaves, and fresh ones spring from the youngest parts of the root. Roots with a single, descending, vertical stock, are called tap-roots (r. perpen- dicularis ) ; their main trunk or tap may branch (Stock, fig. 1), or remain nearly simple ( Carrot , fig. 24). Sometimes the original, usually simple, tap-root perishes soon after germination, and is replaced by a bundle of fibrils, which spring from 10 ORGANOGRAPHY AND GLOSSOLOGY. tlie neck or crown of the root. A i’oot is fibrous ( r . fibrosa) when its fibrils form a bundle of fine, long, scarcely-branched threads ( Meadow-grass , fig. 2b) ; nodose (r. nodosa), when the fibres are swollen at intervals (Dropwort, fig. 26) ; tuberous {r. tuberosa), when the fibres are much swollen in the middle, thus becoming stores of nourishment destined to sustain the plant ( Dahlia , fig. 27). The Orchis root (fig. 28) is both fibrous and tuberous, the ovoid or palmate tubers being reservoirs of nutritious matters, and the cylindric fibres being organs of absorption. The fibres of young Crocus roots are similarly swollen. We have said that the stem has the power of emitting adventitious roots ; these are sometimes artificially induced (as on slips or layers), sometimes spontaneously developed on the nodes of the stem : when these emerge at a considerable height, and descend to enter the earth, they are termed aerial roots (many tropical climbers and epiphytal orchids) ; when they spring from the lower branches of creeping plants, they are called accessory roots ( Strawberry , Ground-ivy). THE STEM. The stem (caulis) is that portion of the vegetable axis which grows in an opposite direction to the root. It branches by means of shoots, which originate in the axils of the leaves. The stem exists in all phoenogams, but is sometimes scarcely developed, when the leaves and flowering branches appear to spring from the root, and the plant is termed stemless (p. acaulis), and its leaves radical { f.raclicalia , Hya- cinth, Dandelion, fig. 29). The stem is perennial { c . perennis) when it lives many years {Strawberry) ; annual (c. annum), when it only lives one {Wheat) ; biennial (c. biennis), when it lives two years ( Carrot ) ; a biennial, stem usually produces leaves only the first year, and in the second it flowers, fruits, and dies. The stem is herbaceous (c. herbaceus) when soft and easily broken ; such are annual, biennial, and many perennial stems ; it is moody (c. liynosus, fruticosus ) when it forms a solid, more or less durable wood {Oak) ; it is suffruticose (c. suffruticosus) when the lower part is hard, and remains above ground for many years, while the branches atid twigs die, and are annually renewed {Rue, Thyme, Sage, Bitter-sweet). The woody stem of trees is called a trunk. THE STEM. 11 The stem is indefinite (c. indeterminatus ) when the flowers are borne only on the secondary axes (those springing from the axils of the leaves), thus appearing to elongate indefinitely ( Periwinkle , Pimpernel, fig. 30). The stem is definite (c. determinatus) when each axis terminates in a flower, and cannot therefore be indefinitely prolonged [Campanula , fig. 1 59 : Columbine, fig. 31) ; it is aerial when it grows entirely above ground (Stock, fig. 1). The rhizome or rootstock (rhizoma) is a stem which extends obliquely or hori- zontally below or on the surface of the ground, the advancing portion emitting fibrous roots, leaves, and shoots, the posterior gradually dying. The rootstock is indefinite ( rh . indeterminatum ) when it grows by means of a terminal shoot, Avliich lengthens indefinitely, and never itself flowers, but gives off' lateral flowering- shoots. Thus in the Primrose (fig. 32) the extremity of the rootstock bears a bundle of leaves, in the centre of which is the shoot by which it is indefinitely prolonged, whilst the flowering shoot is developed in the axil of one of the leaves (b). After flowering, the aerial portion of the leaves dies, but the subterranean portion survives, and from its axil spring accessory roots. The rootstock is definite (rh. determine turn) when, after producing laterally one or more creeping branches, it rises above the earth, and terminates its existence by a flowering branch. In the Iris (fig. 33) and Arum (figs. 34, 35) the leaf-bases 30, Pimpernel. Indefinite stem. 31. Columbine. Definite stem. 12 ORGANOGRAPHY ANI) GLOSSOLOGY. 33. Iris. Definite rhizome. THE STEM. 13 persist as dry scales on tlie flesliy mass of the rootstock, after the decay of the aerial portions. In Carex (fig. 36) each shoot remains under ground during the first year of its existence ; it rises in the spring of the second year, makes a tuft of leaves, and emits from the axil of the lowest of these a shoot, which lengthens during its first year, as i+s pre- decessor did. In the autumn the two-year- old shoot loses its leaves, hut the axis, sheltered by their persistent bases, lengthens, and sends up flowers and leaves in the spring of the third year, when it dies. During the fol- . ,1 36. Carex. Definite rhizome. lowing autumn the flowering stem fruits and dies, together with the old shoot that produced it, but the second year’s shoot, which has now produced a tuft of leaves, will in its turn flower in the following year. A shoot of Carex thus requires three years for its full development. The stem is stoloui- ferous (c. stolonifer) when creeping shoots ( flagellum ) spring from the axils of its lower leaves, develop ter- minal tufts of leaves, then rise, and produce root- fibres below the tufts ( Creeping Buttercup; Straw- berry, fig. 37). The rosette {■propacjuluw) is the tuft of s7- Strawberry. Creeping stem, leaves produced on the lateral shoots of succulent plants ( Houseleek ). The stem may present both stolons and rootstock when some of the lower branches are underground, and others aerial and creeping (Clubmoss) . Thebulb {bulbus, Lily, fig. 38) is a subterranean swollen stock, consisting, firstly, of a more or less convex fleshy disk ( lecus , l), which below gives rise to the roots ; secondly, of fleshy, closely-appressed coats or scales (e) borne on the disk ; thirdly of a more or less central shoot (t), equally borne by the disk, protected by the coats, and formed of rudimentary leaves and flowers ; fourthly, of one or mor lateral shoots, called cloves ( bulbuli ), destined to reproduce the plant. 14 ORGANOGRAPHY AND GLOSSOLOGY. A bulb is coated (b. tunicatus ) when the outer leaves overlap each other so as completely to sheathe the base of the stem ( Narcissus , fig. 39 ; Onion , fig. 40) it is scaly (b. squamosa s ) when the leaves are narrow, almost flat, and imbricated in many 38. Lily. Scaly bnlb, cut vertically. 39. Narcissus. Coated bulb. I, disk ; t, stem ; /, leaves. rows {Lily, fig. 38) ; solid (6. solidus ) when the leaf-bases are very close and confluent with the disk, so that the latter appears to form the entire stock ( Colchicum , fig. 41). In the Crocus (fig. 42), the underground stock is formed of two or three solid bulbs, superimposed like the beads of a chaplet. The primitive bulb (1), which terminates in a flower, pushes out a lateral shoot, which perpetuates the plant. After flowering, it swells considerably, to nourish the shoot which is to succeed it ; this latter flowers in its turn the following year, and emits a shoot like its predecessor; to nourish this it swells and forms a bulb (2) above the original 4J' s,,PenmP°se<1 bulbs, one, which then gradually decays. At the flowering of the third shoot (3) adven- titious roots grow from the base of the second bulb, which soon withers and dries like the first. At the side of the middle bulb a lateral bulbil often springs, which separates from the parent, and becomes a fresh plant. In comparing rootstocks with bulbs, it is easy to perceive that they differ only by the greater or less length of the disk, and the more or less fleshy texture of their underground leaves. The rootstock may thus be regarded as a bulb with a horizontally lengthened disk, and the bulb as a short rootstock with fleshy leaves. 40. Onion. Coated bulb. THE STEM. 15 The superimposed rootstock of the Crocus presents a transition from the bulb to the rootstock proper, for it may equally be regarded as a vertical rootstock or as a series of superimposed bulbs. The roots of Orchis, which are both fibrous and tuberous, are classed with true bulbs, differing from ordinary bulbs only in the swelling of some of the root-fibres. The two tubers are ovoid (fig. 43) or palmate (fig. 44), and are unequal; one (t1) is dark-coloured, wrinkled, flabby, and empty, and gives off the flowering stem ; the 43. Orchis. Tuberous root. 44. Orchis maculata. Palmate tuberous root. 45. Orchis maculata. Palma, e tuberous root, cut vertically. other (t 2) is larger, whiter, and more succulent, often ending in well-developed fibres (f), and bears a shoot (-b 2), from the base of which grow fibrous roots. The two tubers (fig. 45) are united above by a very short neck (p 1). This neck connects the old tuber (t 1) with the new one (t 2), and from it the latter descends, and a leafy shoot (b 2) ascends, which in the following year will bear a flowering stem ; between this large shoot and the old stem a vertical cut reveals a. third tiny shoot (b 3), developed from the young tuber, and destined to succeed it in the third year. There are thus three generations in the rootstock of an Orchis, each of which requires two years for its .perfect development, and dies at the end of the third, after having- flowered ; and the same' may be seen in Carex, Crocus, and ordinary bulbs. The term tubers ( tubera , tuber- cnla) has been g-iven to the dilated extremities of underground roots, usually containing starch. These swellings of which are eyes or buds, which develop i fig. 40). The conversion of shoots into !. Potato. Snbterranean branches bearing: tubercles. bear rudimentary leaves, in the axils ito stems {Jerusalem Artichoke ; Potato, ubers can be encouraged by earthing 1G ORGANOGRAPHY AND GLOSSOLOGY. up the lower portion of the stem ; if the covering is slight, the tuber swells but little ; if the light can penetrate to the stem, the tuber becomes green, and produces rosettes of leaves. Props ( fulcra ) are a kind of aerial roots which spring from the axils of leaves, or from various points of the stem in certain climbing plants ( Ivy , fig. 47), which are attached by them to walls or trees ; these organs are non-absorbent, but under suitable conditions they behave like ordinary roots, as is seen with ivy cultivated for edgings. x Suckers (haustoria) are small warts upon certain parasitic stems ( Cuscuta , fig. 48), whence issue true supplementary roots, which attach themselves to the neighbouring plants, and draw nourishment from their juices. The stem is cylindiic or terete (c. cylindricus , teres), when a transverse cut presents a circular outline (Cabbage) ; — compressed (c. compressus ), when an elliptic one, as if squeezed from opposite sides (St. John's Wort, Tutsan ) ; — triangular or trigonous (c. triangularis, trigonus), when a cut shows three sides ( Carex ) ; — square (c. quad ran gularis, tetragonus), when it shows four right angles ( Lamium ) pentagonal (c. quinquangularis, pentagonus), when it shows five faces and five angles (Bramble). The stem is glabrous (c. glaber), when there are no hairs on it (Horse-tail) ; — smooth (Icevis), when, being glabrous, it presents no roughness, and its surface is quite even (Tulip) ; — scabrous ( c . scaber, asper), when its surface presents little inequalities (Carrot) ; — striate (c. striatus), when it is marked with small raised longitudinal lines or s trice (Sorrel) ; — winged (c. alatus), when furnished with foliaceous expansions (Comfrey, fig. 66) nodose (c. nodosus), when its nodes are tumid (Pink, fig. 49) ; — pilose (c. qrilosus), when it is furnished with long scattered hairs ( Herb-liobert ) ; — THE STEM. 17 pubescent (c, pubescent), when it is covered with more or less appressed short hairs (Henbane) ; woolly (c. lanatus), when the hairs are long, close, appressed, and curly (Thistle); — tomentose (c. tomentosus ), when the hairs are short, soft, and matted (Mullein) villous (c. villosus), when the hairs are long, soft, and close-set (Forget- me-not) hirsute (c. hirsutus), when it bears straight, stiff hairs (Borage) hispid (c. hispidus), when the hairs are straight, stiff and very long (Poppy). The ana- tomical structure of hairs will be described hereafter. The stem is prickly ( c . aculeatus), when the hairs which clothe it thicken, harden, and end in a sharp point; the prickles (aculei) always belong to the epidermis, and come away with it (Rose, fig. 50) ; — it is spinous (c. spinosus), when the woody tissue of the stem is elongated into a hard point. Spines (spince) are usually partially developed or arrested branches (Blackthorn, fig. 51), which, under favourable circumstances, produce leaves and shoots. The stem is erect (c. erectus), when vertical (Stock, fig. 1); — procumbent or prostrate (c. procumbens, prostratus), w hen, too weak to support itself, it trails 50. Bose. Stem with prickles. 51. Blackthorn. 52. Bindweed. Twining stem. 53. Hop. Twining stem. along the ground (Knot-grass) ; — spreading (c. patulus), when many branches start from the neck, and spread on all sides horizontally (Pimpernel) ; — ascending (c. ascendent), when, after being horizontal or oblique at its commencement, its tip becomes upright (Speedwell) ; — creeping (c. repens), when a prostrate stem gives off adventitious roots from the nodes (Strawberry , fig. 37) ; — scandent (c. scandens ), when it raises itself by aid of neighbouring bodies, and attaches itself to them either by props (Ivy, fig. 47), suckers (Cuscuta, fig. 48), or tendrils (Vine, fig. 130 ; Melon, fig. 61) the climbing stem is termed twining (c. volubilis), when it coils spirally round other bodies, rising either from left to right (c. dextrorsum volubilis, Bindweed, fig. 52), or from right to left (c. sinistrorsum volubilis, Hop, fig. 53) of the spectator placed opposite its convexity. The direction of the branches depends on that of the leaves from the axils of which they spring ; and they are alternate (r. alterni, Rose), opposite (r. oppositi, Valerian), or wliorled (r. verticillati, Pine )., c 18 ORGANOGRAPHY AND GLOSSOLOGY. The stem bearing opposite branches is dichotomous (c. dichotomies, Lamb's Lettuce) ; and trichotomous (c. trichotomus, Oleander), when it continually forks or trifurcates to the extremities of its branches. Tjeaves {folia) are usually flat, green, horizontal expansions, arising from the nodes, and are the result of the spreading out of a bundle of fibres, the interstices between which are filled with parenchyma. The point of the stem constituting the base of +,he leaf and nf wliif'h the latter is a. enn_ The leaves and roots are the principal organs of nutrition, absorbing from the atmosphere gases and liquids suited for the nutrition of the vegetable : they also act as respirators, and as exhalers of useless matters ; and it is in their tissues that the sap, absorbed by the root, and conducted upwards by the stem, parts with its surplus fluids, and acquires all its nutritious properties. Of all plant-organs, the leaves are those which present the greatest variety, and which supply most specific characters. When the vascular bundle which enters the leaf is prolonged, for a certain length before brandling to form the skeleton of the blade {limbus), it takes the name of petiole { petiolus ), and the leaf is called petiolaie (/. petiolatum, Cherry, fig. G) ; — when it expands immediately after leaving the node, the leaf is reduced to its blade, and is called sessile (/. sessile, St. John's Wort). When the blade merely narrows so as to form an obscure petiole, it is called sub -petiolaie {/. svb-petiolatum) . The petiole may be cylindric {p. cylindricus ) ; longitudinally grooved or channelled THE LEAVES. 54. Glycine. Branch showing the bnds 55. Orange, after the leaves have fallen. Leaf with a winged petiole. 57. Ranunculus. Leaf with amplexicaul petiole. 5G. Acacia heterophyllns. Pliyllode. THE LEAVES. 19 (p. canalicula tus) ; flattened horizontally, or depressed (p. depressus ); — flattened laterally or compressed (p. compressus ) ; in this case it is usually flexible, and the pendulous blade trembles with every breath of wind (Aspen). The petiole is usually of tolerably uniform diameter throughout its length (p. continuus. Ivy, fig. 47) ; hut it may be much dilated in the middle, and thus resemble a blade separated from the true blade by a constriction, when it is winged (p. alatus, Orange, fig. 55, p ; Acacia heterophylla, fig. 5(1). Lastly, a dilated petiole 68. Wheat. Sheathing leaf. 69. Clematis. Twining petiole. may replace the true blade, when it is called a phyllode (phyUodium), as in most Australian Acacias. When the enlarged base of the petiole, and the node from which it issues, occupy a large portion of the circumference of the stem, the petiole is called amplexicaul (p. amplexicaulis, Ranunculus, fig. 57) ; if the entire petiole is enlarged, and sheathes the stem, the leaf is called sheathing ( vaginans , Carex, Wheat fig. 58). The direction of the petiole is usually straight, but in some plants it twines round neighbouring objects ( Clematis , fig. 59). Stipules. — A leaf is stipulate (/. stijmlatum), when provided at its base with appendages more or less analogous to leaves, named stipules ( stipulce , Heartsease, fig. 60). These may he persistent (s. persistentes), when they persist as long as 1 lie leaf which they accompany ( Heartsease , fig. 60) ; or caducous ( s . caducce), when they fall before the leaf, or as soon as the shoot lengthens (Willow, Oak). 20 ORGANOGRAPHY AND GLOSSOLOGY. 62. Buckwheat. Axillary stipule. 63. Meadow-grass, leaf with a lignle. GO. Heartsease. Leaf with lateral stipules. 67. Honeysuckle. Connate leaves. 68. Ilupleurum. Perfoliate leaL THE LEAVES. 21 Stipules are foliaceous (s. foliacece), when of the colour and texture of leaves ( Heartsease , fig’. 60) ; — scale-like { s . squamiformes) , when thin like scales ; — mem- branous (s. membranacece) , when thin, flexible, and almost transparent ; — scarious (s. scariosce), when dry and coriaceous {Beech, Willow , Hornbeam) ; — spinous (s. spinosce), when contracted and hardened into spines ( Robinia , fig. 114) ; cirrhose ( s . cirrhiform.es) , when they lengthen into twining tendrils {Melon, fig. 61). (We retain the name of stipules for the tendrils of the Melon and other Cucurbitacece, in deference to the glossology adopted by botanists ; but we shall return to this subject when discussing tendrils. Stipules are lateral [s. laterales), when inserted left and right of the leaf {Hearts- ease, fig. 60; Robinia, fig. 1 14) axillary (s. axillares), when in the axil of the leaf; they are then usually consolidated into one. Such axillary stipules may cover only a part of the circumference of the stem {Drosera), or may completely surround it {Buckwheat, fig. 62), in which latter case it bears the name of ochrea. The ligule of grasses {ligula, Meadoiv-grass, fig. 63) is simply an axillary stipule (Lig.), situated at the separation of the blade (l) from the sheathing petiole (g) ; it may be entire, emarginate, laciniate, pilose, &c. Of the wliorled leaves of Madder (fig. 4) and other Rubiacece, the two opposite ones are alone considered as tree leaves, and bear each a bud in its axil ; the others are regarded as stipules, sometimes multiplied, when there are more than four, or confluent, when fewer than four. The Nerves of the leaf are said to be parallel ( n . paralleli), when they run free and parallel to the edge of the leaf and to each other {Iris, figs. 33, 79) ; — branching or anastomosing {n. ramosi, anastomosantes) , when they subdivide and join each other {Cherry, fig'. 6). Branching nerves are pinnate {n. pinnati) , and the leaves penni-nerved (f. penni-nernia), when lateral nerves, like the plumes of a feather, spring from the midrib {Cherry, fig. 6) ; — palmate {n. ^al- maki, palmatinervia), when several primary nerves diverge from the base of the blade like the fingers of a hand {Melon, fig. 64). The primary nerves only are palmate ; the secondary, tertiary, &c., are always pinnately arranged. As regards position, leaves are radical (/. ra d, i- calia), when they spring from near the neck, and hence appear to rise from the root {Dandelion, fig. 29 ; Plantain, Erophila, fig. 65) ; — cauline (/. candina), when they spring from the stem and branches {Rose, fig. 50). Leaves are clasping or amplexicaul {f. amplexicaulia) , when the base of 69. Yew. Distichous leaves. tlieir petiole or blade surrounds the stem {Butter- cup, Henbane)-, — decurrent {f. decurrentia) , when 70' le^icled their blade is continued down the stem, forming a sort of foliaceous wing ; We£““uth 22 ORGANOGRAPHY AND GLOSSOLOGY. 71. Ranunculus aquatilis. Dissimilar leaves. 73. Sectoral. Cylindrical leaves. 76. Easter daisy. Spalhulate leaf. 74. Small mallow. Orbicular leaf. 78. Privet. Lanceolate leaf. 75. Pear. Ovate leaf. 80. Juniper. Needle-shaped leaves. TIIE LEAVES. 23 tlie stein is then winged { cciulis alatus, Comfrey, fig. 66) ; — covfluent or connate (f. con- nata), when the bases of two opposite leaves join around the stem ( Honeysuckle , fig. 67, Chlora ) ; — when the base of a single leaf spreads completely round the stem, the stem and leaves are perfoliate (c. f. perfoliatus, Bupleurum, fig. 68). Leaves are alternate (/. alterna, Stock, fig. 1; Toad-flax, fig. 2; Oak, fig. 5) ; — opposite (/. opposita, St. John's Wort, fig. 3) ;—ivhorled (/. verticillata, Oleander, fig. 82 ; Madder, fig. 4) ; — distichous (f. disticlia), when they spring from alternate nodes placed on two lines to right and left {Yew, fig. 69) - fascicled (/. fasciculata), when crowded into a bundle on very short branches ( Weymouth Pine, fig. 70). In true Pines this bundle is persistent ; in larches the leaves become solitary and scattered, in consequence of the elongation of the axis. Imbricated leaves (/. imbricata ) overlap like roof-tiles (. Houseleek , Cypress, Thuja. ). Colour of Leaves. — Leaves are green when of the usual colour; — glaucous (/. glauca ) wdien of a whitish dusty green or blue {Poppy, Cabbage) ; — spotted {/. maculata ) when they have spots of a different colour from the ground {Arum) ; — variegated (/. variegata) when they are of many colours arranged without order {variegated Holly, tricoloured Amaranth ) ; — hoary {f. incana), when they owe their colour to short and close hairs {Ten-week- stock). Forms of Leaves. — Without being precisely alike, yet the leaves of any one plant are usually very similar ; but in some species they are obviously dissimilar {Paper Mulberry, Calthrop, Water Crowfoot, fig. 71 ; Shepherd' s purse, fig. 72) ; the plant is then said to be heterophyllous {pi. heteropliylla). Leaves are plane {f. plana), when their blade is much flattened, as is usually the case {Lime, fig. 86) ; — cylmdric or terete (/. tcretia), when the blade is rounded throughout its length {Sedum, fig. 73) ; — orbicular {f. orbiculata) , when the circum- ference of the blade is more or less circular {small Mallow, fig. 74) ; — ovate {f. ovata), when the blade resembles the longitudinal section of an egg, with the larger end at the base {Pear, fig. 75) ; — obovate (/. obovata), when ovate, with the smaller end at the base {Meadovj-sweet, St. John's Wort) ; — oblong {f. oblonga), when the width is about a third of the length {small Centaury) ; — elliptic (f. elliptica), when the two ends of the blade are rounded and equal, like an ellipse (St. John's Wort, fig. 3) ; — spatlmlate {f. spathulata), wdien the blade is narrow at the base, and large and rounded at the end, like a spatula ( Easter Daisy, fig. 76) ; — angular (f. angulata), when the circumference of the leaf presents three or more angles ; — deltoid (f. dcltoidea), if it presents three nearly equal angles, like a delta, A (Chenopodium, fig. 77). Leaves are lanceolate (/. lanceolata), when the blade is largest in the middle, and diminishes insensibly towards the extremities {Privet, fig. 78) ; — linear (/. linear ia), when the sides of the blade are nearly parallel, and the space between them narrow {Toad-flax, fig. 2); — ensiform (/. ensiformia), wdien of the shape of a sword ; in this case, the two surfaces are in apposition and consolidated in the upper part {Iris, fig. 79) ; — subulate {f. subulata), when the cylindrical blade terminates somewhat like an awl {Ledum reflexum) ; — needle-shaped {f. cccerosa), when the blade is hard, narrow, and pointed like a needle {Pine, fig. 70, Juniper, fig. 80) ; — • 24 ORGANOGRAPHY AND GLOSSOLOGY. a pillary (/. capillacea), when slender and flexible like hairs (Water Crowfoot, fig* 71) l— filiform (/. filifoi ’mid), when thin and slender like threads (Asparagus, fig. 81). The false leaves of Asparagus here alluded to, and which have been described as leaves by most botanists, ought to be considered as branches springing from the axils of small scarious scales, which are the true leaves. SI. Asparagus. 82. Oleander. Acute leaves. Filiform leaves. 83. Fellitory. Acuminate leaf. 84. Mistleto. Obtuse leaf. 85. Amaranth. Emarginnte leaf. Leaves are acute (/. acuta) when they terminate in a sharp angle (Oleander, fig. 82) ; — acuminate (/. acuminata) , when the tip narrows rapidly and lengthens into a point ( Pellitorg , fig. 83) ; — obtuse (f. oblusa), when the tip is rounded (Mistleto, 80. lame. Cordate leaf. fig. 84); — emarginate (f. 87. Ground ivy, lleniform leaf. 88. Bindweed. Sagittate leaf. 80. Sheep’s sorrel Hastate leaf. emarginata), when it terminates in a shallow sinus ( Amaranth , fig. 85). Leaves are cordate (/. cordata), when the base forms two rounded lobes and the tip is pointed, somewhat like an ace of hearts (Lime, fig-. 86) ; — reniform (f. reniformia), when the base is cordate but the tip rounded, like a kidney (Ground ivg, fig. 87) ; — sagittate (/. sagittata), when the base is lengthened into two sharp lobes, which are oblique or parallel to the petiole, like an arrow (Bindweed, fig. 88) THE LEAVES. 25 hastate (/. hastata ), when the two lobes are nearly perpendicular to the petiole, like a halbert ( Sheep’s sorrel, fig’. 89) ; — peltate (/. peltatum), when the petiole is joined to the centre of the under surface of the blade [Nasturtium., fig. 90), in which case the primary nerves diverge symmetri- cally from the petiole, like the spokes of a wheel. A peltate leaf may be compared with the orbicular pahnately-nerved leaves of Mallows, for if the two 90. Nasturtium. Peltate leaves. 91. Curled Mallow. edges nearest the petiole of the leaf of the small Mallow (fig. 74) were joined, a peltate leaf would be the result. Surface of Leaves. — Leaves are smooth (/. laivia), when their surface presents neither hairs nor inequalities (Orange); — scahrid (f. scahra), when rough or harsh to the touch (Carex); — glabrous (/. glabra), wdien, whether smooth or not, they have no hairs (Tulip) ; — silky (f. sericea), when clothed with long, even, shining hairs ( Silver - oueed) ; — 'pubescent or downy (f. pubescentia) , when they are clothed with soft short hairs (Strawberry) ; — pilose (f. pilosa), when the hairs are long and scattered ( Herb - Robert) ; — villous (f. villosa), when the hairs are rather long, soft, wdiite, and close ( Forget-me-not ) ; — hirsute (f. hirsuta), when the hairs are long and numerous (Rose-campion) ; — hispid (f. hispida), when they are erect and stiff (Borage) ; — setose (f. setosa), when they are long, spreading, and bristly ( Popp ij) ; — tomentose (f. tomen- tosa), when they are rather short, soft, and matted ( Quince ) ; — woolly (/. lanata), when long, appressed, curly, but not matted (Corn-centaury) ; — velvety (f. velutina, holosericea), when the pubescence is short and soft to the touch (Foxglove) ; — cobwebby (/. arachnoidea), when the hairs are long, very fine, and interlaced like a cobweb (Thistle, Cob'webby Houseleck). Leaves are wrinkled or rugose (f. rugosa), when their surface presents in- equalities, due to there being more parenchyma than is enough to fill the spaces between the nerves (Sage) ; — bullate (f. bullata), when this excess of parenchyma renders the inequalities more visible, and the whole blade is swollen between the nerves (Cabbage) ; — crisped (/. crispa), when the extra parenchyma only appears at the edge of the blade, which appears crimped (Curled Mallow, fig. 91) ; — waved (/. undulata), when for the same reason the edges are in rounded folds (Tulip). 26 ORGANOGRAPHY AND GLOSSOLOGY. !H. B:u berry. Spiny leaves. 92. Sundew. Ciliate leaf. 93. Holly. Spiny leaf. 95. Gooseberry. Spines. Hairs and Spines on the Margins of Leaves. — The leaf is ciliate (/. ciliatum), when its margins bear long hairs like eyelashes ( Sundew , fig. 92) ; — spinous (/. spinosum), when the nerves lengthen and harden into thorns (Holly, fig. 93 ; Barberry, fig. 94) ; in Berberis, the leaves which first appear after germination are provided with parenchyma like ordinary leaves, and the base of their petiole is furnished with two little stipules ; but on the subsequent branches the stipules harden, lengthen into spines, and the leaf itself is reduced to one or three thickened and spinous nerves, from the axils of which short branches, bearing ordinary leaves, are developed. In the Gooseberry (fig. 95) the three or five spines (c) which spring below the leaves (f) may be con- sidered as a development of the pulvinus of the leaf. Divisions of Leaves.— The leaf is entire (f. integrum ) when its blade is quite undivided ( Oleander , fig. 82) ; — cut when its edge, instead of being a continuous line, presents a series of broken 98. Elm. Bidcutate leaf. lines, owing to the parenchyma not accompanying the nerves to their extremities (Chestnut, Oalc, Hawthorn) ; — dentate or toothed (/. dentatum) when it has sharp teeth THE LEAVES. 27 with a rounded sinus ; it is the slightest way in which a leaf can he cut ( Chestnut , fig-. 96) ; — crenate { f.crenatum ) when it has rounded teeth and a sharp sinus {Ground ivy, tig. 87); — serrate (/. serratum ) when the sinus and teeth are sharp and turned towards the tip of the leaf, like the teeth of a saw ( White Archangel, fig. 97) ; — doubly -dentate or -crenate or -serrate (f. duplicato-dentatum, &c.) when the teeth or erenatures are themselves toothed or crenate {Elm, fig. 98) ; — incised (/. incisum ) when the teeth are very unequal, and the sinus sharp and deep {Hawthorn, fig. 99) ; — sinuate (/. sinuatum), when the divisions (deeper than teeth) and the sinus are large and obtuse the leaf is pinnatifid {f. pinnatijidum, ArtichoTce) ; — if palmate, so also are the laeinise, and the leaf is palmate (/. palmatifidum, Castor-oil, fig. 102). A pinnatifid leaf of which the lac inice point downwards, is called rnncinate (/. runcinatum, Dande- lion, fig. 101). The divisions of the leaf are called partitions (partitiones) , when the sinuses extend beyond the middle, and nearly reach the midrib or the base of the blade ; according to the nervation the leaf is then pinnatipartite (/. pinnatipartitum, Poppy, fig. 103), or palmatipartite (/. palmatipartitum, Aconite, fig. 104). The divisions of the leaf are called segments ( segmenta ), when the sinuses extend to the midrib or to the base of the blade; then, according to the nervation, the leaf is pinnatisect (/. pinnatisectum, Watercress, fig. 105) or palmatisect {f. palmatisectum, Cinq-foil, fig. 106;1 2 Strawberry, fig. 107). The divisions are termed lobes ( lobi ) when the sinuses 1 There are no current exact equivalents for the about the middle of the leaf, and segments to divisions substantive terms lacmiee, partitions, segments, and lobes to or near the base. — Ed. of this work; though when rendered into adjectives we - The Strawberry and Cinq-foil have undoubted usually apply lobes to divisions which descend to or compound leaves. — Ed. 28 ORGANOGRAPHY AND GLOSSOLOGY. are as long as those of the lacinise or partitions or segments, and when the divisions, of indefinite depth, are rounded ; according to the arrangement of its nerves the leaf is then said to be pinnately lobed (f. pinnatilobatum, Coronopus, fig. 108), or palmately lobed (f. palmatilobatum, Maple, fig. 109). 104. Aconite. Pal mipartitc leaf. 106, Cinq-foil. Palmatisect leaf. The leaf is lyrate (/. lyratum), when, being pinnati -fid, -partite, -sect, or pinnately lobed, it terminates in a rounded division, much larger than the others ( Turnip , fig. 110) ; — pedate (f. pedatum), when its lobes, segments, partitions, or laciniee diverge from the base ; this occurs when three palmate divisions spring from the petiole, their midrib remaining undivided, whilst the two lateral ( produce on each side one or two parallel divisions, which are perpendicular to that from which they spring (Hellebore, fig. 111). The same leaf is often variously divided ; thus the segments of the lower pinnatisect leaves of Chelidonium (fig. 112) are lobed, sinuate, crenulate, and dentate ; the lower leaves of Aconite (fig. 104) are palmi-partite, with bifid or trifid partitions, and incised and toothed lacinim ; the lower leaves of Herb- Robert (fig. 1 13) are palmatisect, with trifid strawberry, raimatisect leaf, segments and incised and toothed lacinise ; lacunae being rounded and abruptly terminated by a small point, and said to be apiculate ( l . apiculatce). The Castor-oil (fig. 102), Poppy (fig, 103), Cinq-foil (fig. 106), and Maple (fig. 109), have toothed divisions. Compound Leaves. — A leaf is simple (/. simplex), however deeply cut its divisions may be, when these cannot be separated from each other without tearing, as inmost of the leaves mentioned above. It is compound (f. compositum), when its component divisions can be separated without tearing ; and its divisions are named leaflets 108. Coronopus. Penuilobed leaf. the THE LEAVES. 29 ( foliola ). The petiole of a compound leaf is the common petiole (p. communis), and that of each leaflet is a petiolule ( petiolulus ). A leaf is simply compound, when the leaflets, whether petiolulate or not, spring directly from the common petiole ; and, according to its nervation, the leaf is 111. Hellebore Pedate leaf. 114. Robinia. Pinnate leaf. pinnate (/. pinnatum, Robinia, fig. 114) or digitate (/. digitatum, Horse-chestnut, fig. 115 ; Lupin, fig. 116). When there are but few leaflets, their insertion must 30 ORGANOGRAPHY AND GLOSSOLOGY. 1 120. Act.ea spicata. Tripinnate leaf. 11G. Lupin. Digitate leaf. 111). Gleditsehia trincanthos. Bipinnate leaf. 115. Horse chestnut. Digitate leaf. 121. Actaja racemosa. Triteruate leaf. 117. Melilotns. Pinnate leaf. 118. Trefoil. Digitate leaf. THE LEAVES. 31 be carefully observed: thus th e Melilot (fig. 117) has a pinnately tri-foliolate leaf, but the Trefoil (fig-. 118) a digitately ternate 1 leaf, all the leaflets springing from the top of the petiole. The leaf is bipinnate [f. bipinnatum), when the secondary petioles, instead of each ending in a leaflet, form so many pinnate leaves [Gleditschia triacanthos, fig. 119) ; tripinnate (/. tripinnatum) , when the secondary petioles bear as many j bipinnate leaves ( Actwa spicata, fig. 120) ; tri-ternate, when the common petiole bears three secondary petioles, which each bear three tertiary petioles, each of which ’again bears as many digitately tri-foliolate leaves ( Actcea racemosa, fig. 121). A pinnate leaf with all its leaflets in lateral pairs is termed pari-pinnate (f. pari-pinnatum ) ; when in addition it is terminated by a solitary leaflet, the leaf is impari-pinnate (/. impari-pinnatum , Hobinia, fig. 114). 125. Orobus. Pinnate loaf with unequal leaflet changed into a very short filament. A leaf is laciniate or decompound (/. laciniatum, decompositum) , when, without being really compound, it is cut into an indefinite number of unequal lacinise [Caucalis Anthriscus, fig. 122; Water Crowfoot , fig. 71), as in most umbelliferous plants ( Parsley , Chervil, Ilemloclc, Carrot, Angelica, &c.). A leaf is interruptedly-pinnate or -pinnatisect ( f. interrupti-pinnatum, -pinnati- sectum), when the leaflets or divisions are alternately large and small ( Potato , fig. 123; Agrimony, fig. 124). Tendrils. — Tendrils [cirri) are thread-like, more or less irregularly spiral organs, which usually coil round neighbouring bodies, and thus support the plant. The leaf is cirrhose [f. cirrosum), when one or in ore of its leaflets is reduced to its median nerve, and becomes a tendril. In the Bitter Vetch (fig. 125), the tendril is simple and very short, because it is only the terminal leaflet which is thus transformed. In the Pea (fig. 126), and in Vetches (fig. 127), the three terminal leaflets are changed into tendrils. In another Vetch [Lathy rus Apliaca, fig. 128) all the leaflets are suppressed, and the whole leaf is reduced to a filament without parenchyma (v); in 1 More correctly a digitately tri-foliate leaf. — Ei>. 124. Acrimony. Interruptedly pinnate leaf. Pinnatisect leaf. 32 ORGANOGRAPHY AND GLOSSOLOGY. compensation, tlie stipules (s, s) are very much developed, and perform the office of leaves. In Smilax (fig. 1 29), the petiole bears two lateral tendrils below the single 128. Aphaca. Petiolar tendrils. cordate blade, which may be regarded as the lateral leaflets of a compound leaf, reduced to their median nerves. The lateral position of the solitary tendril in the Melon (fig. Gl) and other Cucurbitacece, together with the fact that two tendrils occasionally occur, one on each side of the leaf, has led most botanists to regard it as a stipule, of which the corresponding one is suppressed ; but the occurrence of two tendrils is very rare, and these are J 7 127. Vetcli. never precisely on the same level. On the Pinnat? ,eaf "ith foimiar ten- 120. Smilax. . arils and winged petiole. stipuiary tendrils. other hand, unlike a true stipule, the tendril of Cucurbitacece is derived from a vascular bundle remote from that which produces the leaf, and is separated from the petiole of the latter by buds. Upon INFLORESCENCE. 33 the whole, the simplest explanation of the tendril of the Melon is, that, unlike that of the Pea and other Leguminosse, it represents a leaf, reduced to one or more of its nerves : thus, when simple, it represents the petiole and mid-rib ; when branched, it represents the principal nerves of the leaf, which are themselves palmately divided. In the Vine (fig. 130) the tendril is leaf-opposed, and formed of a branching peduncle (v, v), of which the pedicels are suppressed, but which sometimes bears imperfect flowers. INFLORESCENCE. This term ( inf orescentia ) is used in two senses, signifying both the arrange- ment of the flowers upon a plant, and a collection of flowers not separated by leaves properly so called ; the latter being the more special meaning of the term. The organs of inflorescence are, (1) the supports of the flowers, peduncle, pedicel, receptacle ; (2) the bracts ( bractece ), or altered leaves, from the axils of which the floral axes spring, and which are altered in colour and form, as they ap- proach the flower ; these are some- times absent (Stock and other Crucifer a;) . The peduncle ( pedunculus ) is a branch directly terminated by a flower; and its extremity forms the receptacle (receptaculum) . This name is also given to a more or less branched flowering axis, differing 131. Lime. Bract joined to the peduncle. . ° m appearance from the rest of the stem, bearing bracts, and of which the ultimate divisions are called pedicels ( pedicelli ). Bracts vary in shape ; they are usually small ( Currant , fig. 132), and may be thin, transparent, and membranous (hr. membranaccce ) ; or thin, dry, stiff, coloured, and scarious (br. scariosce, Geranium) ; or coloured, like petals (Bugloss) ; they are very large in the Lime (fig. 131), which is peculiar in having the peduncle adnate to the midrib of the bract, and, though really axillary to it, appearing to rise from its centre. The primary axis of the inflorescence is the common peduncle, whence spring the secondary, tertiary, &c. axes, according to their order of development. The inflorescence is axillary (inf. axillaris), when the primary axis, instead of terminating in a flower, is indefinitely elongated, and the flowers are borne upon secondary axes, springing from the axils of its leaves (Pimpernel, fig. 30) ; it is terminal (i. terminalis), when the primary and secondary axes both terminate in a flower (Poppy, Columbine, fig. 31). D raceme. 34 ORGANOGRAPHY AND GLOSSOLOGY. In every inflorescence the flowers are solitary (fl. solitarii), when each peduncle is undivided, and springs directly from the stem, and is isolated from the others by normal leaves (Pimpernel, fig-. 30). Inflorescence, in its restricted sense, consists of a group of pedi- celled flowers, bracteate or not, all springing from a common peduncle which bears no true leaves. Indefinite inflorescences are— the raceme, corymb , Ife umbel, spike, and head. 1. The raceme (race- rail mus ) is an inflorescence 1 NLfft?-0 of which the nearly equal secondary axes rise along the primary axis ; it is simple, when the pedicels spring directly from the primary axis, and terminate in a flower (Lily, Lily of the Valley, Snapdragon ; Cur- rant, fig. 1 32 ; Mignonette, fig. 133) ; it is compound, 133. Mignonette. Simple panicle. called a panicle ( pani - 134- Yucca Gloriosa. Branch of compound panicle. cula), when the secondary axes branch once or oftener before flowering (Yucca Gloriosa, fig. 134). A thyrsus (thyrsus) is a panicle of an ovoid shape, the central pedicels of which are longer than the outer ones. 135. Cerasus Mahaleb. Indefinite corymb. 136. Cherry. Simple umbel. 137. Fennel. Umbel and umbellulae without involucre. 2. The corymb ( corymbus ) resembles the raceme, but the lower pedicels are so much longer than the upper, that the flowers are nearly on a level (Cerasus Mahaleb, INFLORESCENCE. 35 fig. 135). In the Stock and many allied plants, the inflorescence is at first a corymb, but changes to a raceme as the primary axis lengthens. 3. In the umbel ( umbella ) the secondary axes are equal in length, and starting from the same point, flower at the same height, diverging like the rays of a parasol ; it is a raceme of which the primary axis is reduced almost to a point. The umbel is simple (sertulum), when the secondary axes flower (Cherry, fig. 136) ; it is com- pound, when these bear umbellately arranged tertiary axes, called partial umbels (umbellulce, Fennel, 138. Carrot. Umbels with involucre ; 137; Carrot, fig. 138; 1 Ool S umbellulae with invohicels. Parsley > 139). 139. iEthusa. Umbel without involucre ; umbellulce with involucels. The bracts, which in most racemes spring, like the pedicels, from different heights, in many umbelliferous plants rise on a level, like the secondary and tertiary axes, and form a whorl. The name involucre (iuvolucrum) is given to the bracts at the base of the umbel 140. Plantain. Simple spike. 141. Vervain. Simple spike. 142. Wheat. Compound spike. 143. Oat. Panicle of spikelets. (Canot, fig. lo8), and that of involucel or partial involucre ( involucellum ) to the 36 ORGANOGRAPHY AND GLOSSOLOGY. bracts at the base of the partial umbel ( Fool’s Parsley, fig. 139). and involucel may be absent [Fennel, fig. 137). 4. In the spike ( spica ), the flowers are sessile or subsessile on the primary axis ( Plantain , fig. 140 ; Vervain, fig. 141). In the compound spike (s.composita) the secondary axes each bear a small Both involucre 146. Oak. Staminiferous catkin. 14.0. Arum.' Spadix exposed by the removal of part of the spathe. 144. Willow. Staminiferous catkin. 145. Willow. Pistilliferous catkin. distichous spike (spikelet, Wheat, fig. 142). In many grasses, the spikelets are borne on long branching- pedicels, forming a panicle (Oat, fig. 143). The catkin ( amentum ) is a spike, the flowers of which are incomplete (i.e. they want either stamens or pistil), and which is deciduous when mature (Mulberry ; Willow, figs. 144, 145; Oak, fig. 146). The cone (strobilus) is a catkin with large thick scales, principally found on certain evergreen trees, hence named Conifers (Pine, fig. 147). The spike of the Hop (fig. 148) is a cone with large membranous bracts. The spadix ( spadix ) is a spike of incomplete flowers, which, when young, is enveloped in a large bract or spathe ( spat-ha ). The axis of the sjiadix sometimes flowers throughout its length, sometimes the upper portion is flowerless (Arum, fig. 149). The branched spadix of Palms is called a ‘ regime ’ (in French). 5. In the head ( capi - tulum ) the flowers are collected into a head or depressed spike, of which the primary axis is vertically contracted, thus gaining in thickness what it has lost in length ( Scabious , fig. 150; Trefoil, fig. 151), and the 117. Pine. Cone. INFLORESCENCE. 87 depressed axis is called the common receptacle ( clinanthium ). As in the umbel, the head is usually bracteate, each flower springing from the axil of a bract. There 150. Scabious. Capitulum. 151. Trefoil. Capitulum. 152. Marigold. Capitulum with involucre. should hence be as many bracts as flowers, but, owing to the crowding of the flowers, some of the bracts are usually suppressed. The outer bracts, or those below the outer flower, form the involucre (in- volucrum, periclinium, Marigold, fig. 152). The bracts of the centre flowers are usually reduced to scales, bristles, 153. Camomile. Paleate receptacle, cut vertically. 154. Cornflower. Bristly receptacle, cut vertically. 155. Onopordon. Alveolate receptacle, cut vertically. or hairs. The receptacle is paleate (r. paleatum), when covered with scale-like bracts separating the flowers ( Camomile , fig. 153) ; — setose ( r.setosum ), when these are bristly ; such are often cut into fine hairs (Cornflower, fig. 154) ; — pitted (r. alveolatum) , when the flowers are seated in depressions, separated by variously shaped membranes, which represent the bracts ( Onopordon , fig. 155). When these inner bracts are absent the receptacle is described as naked (r. nudum, Dandelion, fig. 156). Sometimes the base of the head is naked, or only protected by some normal leaves ( Trefoil , fig. 151), but each flower may still be accompanied by a bract. The inflorescences of Dorstenia Contrayerva, and of the Fig (hypanthodium), are also heads. In Dorstenia (fig. 157) the receptacle is much depressed or slightly 38 ORGANOGRAPHY AND GLOSSOLOGY. concave, bearing incomplete flowers inserted in pits with ragged edges ; in the Fig (fig. 158) the inflorescence is similar, but the receptacle is still more concave, inso- secondary axes, reaching the same level ; an umbel is a raceme whose primary axis is undeveloped ; the spike is a raceme whose secondary axes are undeve- loped ; the capitulum is a spike with the primary axis vertically thickened and dilated. The difference between the raceme, corymb, umbel, spike, and head being simply due to the amount of development of the primary and secondary axes, these terms cannot be precisely limited, and intermediate terms are therefore frequently resorted to; as spiked racemes and panicles, when the pedicels are very short ; a globose spike approaches the head ; and an ovoid or spiked head approaches the spike. Amongst Trefoils, capitulate, spiked, and umbelled flowers all occur. In the raceme, panicle, corymb, and spike, the pedicels flower from below up- wards, i. e. the lowest flowers open first. In simple and compound umbels, the outer flowers open first ; whence we may conclude that the umbel is a depressed raceme. In the head, as in the depressed spike, the flowers really open from below up- wards, but as the surface of the inflorescence in both these cases is nearly horizontal, they appear to open from the circumference to the centre, and are called centripetal, a term which is applied to every indefinite inflorescence, whether the flowers open from below upwards, or from without inwards. Definite Inflorescences. — These are all included under the general terra cyme (cyma), however much they may be branched ; they are, the definite- or cymose-raceme ; true corymb ; umbellate-cyme ; spicate-cyme, scorpioicl cyme ; and contracted cyme, which comprises the fascicle and the glomende. 1. In the definite- or cymose-raceme ( Campanula , fig. 159), the flowering pedicels are of nearly equal length, as in the raceme ; from which it differs in the primary axis (a, a, a), terminating m a flower, which is necessarily the first to expand ; much that the male flowers, which are at the top of the fig, answer in position to the lowest flowers of the primary axis, and the small scales (bracts) at the mouth represent an involucre, which in the normal state would gird the base of the I common recepta- ^ | cle, as in an or- dinary head. mw / It is obvious that every indefi- nite inflorescence must be a modifi- cation of the ra- ceme ; thus the 157. Dorstenia. cerne with unequal INFLORESCENCE. 39 whilst of the secondary axes (b, b, b), the lowest, being the oldest, flowers first ; and the tertiaries (c, c, c), although often lower than the axis whence they spring, flower last. The result is, that of the expanded flowers some are above, some below the buds, according to the order of the succession of their axes. When examining such inflorescences, the student must look for the axis terminated by a flower, for the lateral leaf or bract which it bears, and for the shoot or secondary axis which springs be- tween this axis and itself. 159. Campanula. Cymose raceme. 160. Oerastium. Dichotomous cyme. 161. Hawthorn. Definite corymb. The racemose cyme is called a panicle or thyrsus when much branched ( Privet ) ; but in reality the difference between the definite raceme and panicle is not analogous to the difference betweeii the indefinite raceme and panicle, for the indefinite raceme consists of a primary and many secondary axes ; while the indefinite panicle consists of primary, secondary, tertiary, quaternary axes ; just as is the ease both in the definite raceme and definite panicle ; the only difference between these two, then, is in appearance. The definite raceme becomes a dichotomous cyme, when the primary axis termi- nates in a flower between two opposite leaves or bracts, from the axils of which spring two secondary axes, each again terminated by a flower between two bracts, from the axils of which spring two tertiary axes, and so on ( Cerastium , fig. 160) ; this evo- lution of subordinate axes, each terminating between two opposite axes, is continued till the last axis fails, from deficient nutrition, to repeat the process. When, instead of two opposite leaves or bracts, there are three in a whorl below each successive central flower, with again three in their axils, the cyme becomes trichotomous. 2. In the definite (or true) corymb , the different flowering axes, although of unequal length, attain pretty much the same level ( Hawthorn , fig. 161). In the definite raceme and the corymb, the central flowers are first developed ; in other words, the flowers open from within outwards, or centrifugally. 40 ORGANOGRAPHY AND GLOSSOLOGY. 3. In tlie definite umbel or umbellate cyme the pedicels appear to start from the same point as in the indefinite umbel, hut the central flowers open first, and the outer pedicels are evidently the youngest and shortest : being a definite umbel, flowering centrifngally, it is truly a cyme ( Chelulonium , fig. 162). 4. The definite spike or spicate-cyme ( Sedum , fig. 163) 162. Cbclidoniura. Definite umbel. is composed of a succession of independent axes, alternating to the right and left, each terminating in an apparently sessile flower. 5. The scorpioid cyme ( Myosotis , fig. 164) is a raceme which rolls up in a crozier shape, like the tail of a scorpion ; it is composed of a succession of in- dependent axes, which do not al- ternate right and left, but form an interrupted line, which tends to turn back upon it- self ; in this in- florescence, the bracts are usually suppressed (fig-. 165). 6. In the COW- 166. Box. Glomernl 0. traded cyme the 167. Lamium. Fascicles on an indefinite stem. flowers are crowded, owing to the extreme shortness of the axes ; it is called fascicled, when the axes are somewhat lengthened, and are regularly distributed 165. Theoretical fignre of the scorpioid cyme. INFLORESCENCE. 41 ( Sweet William) ; — glomerate, when the axes are almost suppressed, and extremely irregular (Box, fig. 166). Mixed inflorescences are those in which the definite and indefinite both appear. In the Labiatw ( Lamium , fig. 167) the general inflorescence is indefinite, while 168. Mallow. 17*2. Butcher's Broom. 170. Heartsease. Epiphyllous flowers. Single-flowered cyme. the separate heads are true axillary cymes or fascicles. In the Mallows the same arrangement occurs (fig. 168). In Composite ( Groundsel , fig. 169) the general inflorescence is a definite coi-ymb, and the separate portions are heads. The definite inflorescence is sometimes reduced to a single flower, and resembles the one-flowered pedicels of an indefinite inflorescence ( Heartsease , fig. 170) ; but a little below the flower two small bracts ( brar.teoles ) will be found, in the axils of which are two obvious or suppressed shoots, which sometimes flower ( Bindweed , fig. 171). The two bracteoles of a one-flowered pedicel are therefore the evidences of a two- or three- flowered cyme, of which the primary axis only is developed. The inflorescence of certain plants has been called epiphyllous, from the flowers 42 ORGANOGRAPHY AND GLOSSOLOGY. appearing to spring from leaves or bracts. In tlie Lime (fig. 131), tlie peduncle is joined to the bracts. In Xylophylla the floral branch, dilated and flattened like a leaf, bears flowers along its edges. In the Butcher's Broopi (fig. 172), as in Xylophylla, the peduncles, enlarged into green leaves, rise in the axils of small scales which are the true leaves, and bear on their centre one or more shortly pedicelled flowers, forming a cyme. THE FLOWER. The flower, in phaenogamic plants, is a collection of several whorls (usually four), formed of variously modified leaves arranged one above another in rings or stages, so close that their internodes are not distinguishable. The leaves which form each floral whorl are not always precisely on the same level, but often form a olose spiral, and consequently not a true whorl ; the term whorl is, however, always applied to the calyx, corolla, andrcecium, and pistil. The flower may be regarded as a true shoot, terminating the peduncle or pedicel, and therefore terminal as regards the branch from which it springs : limiting the growth of that branch. Its terminal position may be theoretically explained by supposing that ) the floral whorls exhaust the supply of nutri- ment provided by the axis, and with this the vegetative force necessary to prolong it. In the normal condition of the flower, the re- productive and nutritive forces are in. equili- brium ; but there are cases in which this equilibrium is disturbed, and in which the axis lengthens beyond the floral whorls, and re- produces the plant by branch-buds ; in which cases the seed-buds are usually suppressed j many plants, and especially in proliferous roses (fig. 178), of which the peduncle is prolonged into a supplementary axis, ending usually in an imperfect flower (fig. 174) of sepals (s) and petals (p), in the middle of which are a few imperfect stamens and carpels. The variously transformed leaves composing the floral whorls, though modified in tissue, colour, and texture, to form the calyx, corolla, andrcecium, and pistil, sometimes reveal their origin by resuming the aspect of normal leaves. The term anomaly or monstrosity is given to casual departures from the normal structure occurring in animals and plants, which anomalies are most frequently induced by cultivation. The first whorl or calyx, being the exterior, and therefore the nearest to the leaves, resembles these 'most. The second whorl or corolla is more altered ; the tissue of its petals is more 174. The same rose cut ^ ertically, and deprived of calyx and lower petals, to show the position of all the parts along the axis. is seen m this 173. Proliferous rose. C,.C, calyx transformed into leaves ; ]>. petais multiplied at the expense of the stamens ; a, prolonged axis bearing an imperfect flower ; F, coloured blades representing abor- tive carpels. THE FLOWER. 43 17 5. Transformation of stamens in roses. Hooded Columbine, showing one series ot' anthers transformed and connected together. delicate, and their colour more brilliant, but their claw, limb, and nerves, and their usually flat shape, all reveal their foliar nature. The third whorl, or andreecium, bears much analogy to the second ; the relative position of the stamens and petals is always the same, and these sometimes present an insensible transition from one to the other ; as in semi-double flowers, where some of the stamens are changed into petals ; in partially double flowers, where all the stamens are so changed; and in full double flowers, where the carpels also have become petaloid {Ranunculus, Columbine, Rose). In Rosa centifolia (fig. 175), par- ti ticularly, the successive steps by which a stamen becomes a petal are obvious ; sometimes the anther enlarges, and one cell reddens (6) ; or both cells lengthen (5) ; or the connective reddens and dilates, and bears on one side a yellow scale, which recalls an anther- cell (4, 3) ; oftenest the stamen expands at once into a complete petal (2) ; sometimes (1) the proximity of the calyx seems to influence this petal ; a green midrib traverses its coloui’ed blade, and it becomes sepaline in the middle, petaline on the sides. In the double Columbine (fig. 176), the anther swells, and forms a hooded petal; and some- times, but more seldom, the filament dilates into a flat petal. The fourth whorl or 'pistil is the central ; its position and the pressure of the surrounding organs influence its form in many ways, and hence disguise its origin ; but when the carpellary leaves are free {Columbine, fig. 12), or solitary {Pea, tig. 14), their foliaceous nature is obvious, and especially in anomalous cases, as the followin -In the Columbine (fig. 177) the five carpellary leaves (p.c) instead of being folded to form a protecting cavity for the SI young seed, have been found to remain flat, and bear along their edges (or placentas) small leaf-buds (f.o) ; these buds, which nor- mally would have contained an embryo, were mostly open ; some few, though empty, were curved, and suggestive of their normal fuuction; fertili- zation had not taken place, p. C-and the unfertilized stigma was reduced to a small glan- dular head (St), terminating the midrib of the carpellai-y In the double Cherry (fig. 178), the free edges of the two carpels (f.c) bear no buds, and their blade or ovary, which altogether resembles an ordinary leaf, folded along its midrib (n.iii), is lengthened into a style-like neck, terminated by a spongy tubercle representing the stigma. * Anomalies.- N r F.o 178. Double Cherry. Flower cut vertically ; s, sepals ; p, petals ; F.c, carpellary leaves ; x.m, median nerve or style. leaf. n ORGANOGRAPHY AND GLOSSOLOGY. The Alpine Strawberry (fig. 179) presents a curious metamorphosis of the floral whorls. The calyx (s) is normal, the five outer leaves are bifid, and accurately represent the stipules of the leaves. The petals (p) appear as green, strongly veined, nearly sessile leaves 179. Alpine Strawberry. 180. Alpine Strawberry. Green petal (mag.). 181. Alpine Strawberry. Green stamens. lf.c 182. Alpine Strawberry. Carpel (mag.). 183. Alpine Strawberry. Carpel without the ovary (mag.). with five acute ciliate lobes (fig. 180). The twenty stamens (fig. 179, e) are arranged in four whorls, and are also expanded into green petioled simple or tliree- lobed leaves (fig. 181) ; most of them bear on each side of the base of the blade a yellow boss (a, a), representing a suppressed anther. The carpels (fig. 179, c), which have also reverted to leaves, are arranged spirally on a receptacle, which becomes succulent as the green flower grows. The carpellary leaf (fig. 182 f.c), the integument of the seed (f.o), called the ovulary leaf, and the embryo are transformed through excessive development into overlapping leaves. Of these, the outer leaf, often bifid (f.c), represents the ovary; its base sheaths the inner leaf (fig. 183, F.o), which should have formed the outer integument of the ovule. At the inner base of this ovulary leaf (183, F.o) is a pointed shoot (p) ; this is the embryo, of which a vertical section (fig. 184) shows rudimentary leaves or cotyledons (co) and a plumule (g). In this curious flower, an excessive supply of nutrition has deranged the reproductive organs, and the whorls, which should have been modified in 184. Alpine Strawberry. 185. Rumex. Carpel Flower with a double cut vertically. calycoid perianth. 18G. Lily. Flower with a double petaloid perianth. 187. Narcissus. Flower with a double petaloid perianth, furnished with a cup simulating a corolla. subservience to the function of reproduction, have preserved their original form of green leaves. Such a metamorphosis of all the floral organs into ordinary leaves is not uncommon throughout the Vegetable Kingdom; it is called chloranthy. THE FLOWER. 45 An incomplete flower (fi. incompletus ) is one in which calyx, or corolla, or androeciuin, or pistil is absent. The single or double whorl which surrounds the androecium and pistil (or essential organs of the flower) is called a perianth ( perianthivm. perigonium ) . A dichlamydeous flower (Jl. dichlamydeus ) is one with a double perianth, i.e. with two whorls, calyx, and corolla ( Wallflower , fig. 7) ; which are similar in form or colour or not. When both whorls are green and calyx-like ( Rumex , fig. 185), the perianth is called ealycoid, calycine, or foliaceous (p. foliaceum), and when both are coloured or corolla-like {Lily, fig. 186), it is called petaloid ( p.petaloideum ). In Nar- cissus (fig. 187) there is a fringed cup within the petaloid perianth, which is greatly developed in the common species here figured, but is much less so in the Narcissus poeticus, and other species. In these latter it is cut into six lobes, alternating with those of the double perianth, whence some botanists have concluded that it rejiresents two confluent whorls analogous to the outer ones. Others regard this cup of Narcissus as formed by lateral expansion of the confluent filaments. In Orchis (fig. 188) the petaloid [\ 188. Orchis. Flower with a double irregular petaloid perianth. 189. Chenopodium. Monoperianthed flower. 191. Ash. Naked flower. 190. Arlstolochia. Monoperianthed flower with irregular perianth. 192. Carex. £ flower. perianth has six unequal, spreading lobes, of which the upper are erect and form the hood {galea) ; the lowest is dilated, variable in shape, and called the lip (i labellum ) ; it is sometimes produced into a sac, or spur ( calcar ) A monochlamydeous perianth (p. simplex) is usually con- sidered as a calyx, and the flower is said to be apetalous (fi. apetalus). It may he foliaceous {Chenopodium, fig. 189), or petaloid {Anemone, fig. 230), or irregular {Aristoluchia, fig. 190). An achlamydeous flower (fi. achlamydeus) has neither calyx nor corolla ; it may be protected by one or more bracts {Carex, figs. 192, 193), or altogether unprotected {fi. nudus, Ash, fig. 191). A hermaphrodite flower (fi. hermapliroditus, 5 ) possesses both androecium and pistil (Wallflower, fig. 7) ; — the flower is male (fi. masculus, $ ) when it has androecium without pistil (Carex, fig. 192) female (fi,. foemineus, g ), when it has pistil without androecium (Carex, fig. 193) ; — and neuter or sterile (fi. sterilis, neuter ), when it has neither androecium nor pistil (outer flowers of the Cornflower, fig. 191); — 193. Carex. 9 flower. 46 ORGANOGRAPHY AND GLOSSOLOGY. monoecious (fi. monoid), when the male and female flowers are on the same plant ( Carex , figs. 192, 193; Oak, fig. 146; Hazel-nut, fig. 195, 195 bis, 195 ter; Arum, figs. 196, 198. Aram. 195. Harel nut. 9 flower. Monoecious flowers. 1 9(5. Arum. Monoecious flowers. Spa- dix bearing below the pistilliferous flowers, abore the staminiferous, and terminated by a club- shaped prolongation. 199. Willow. $ flower. 200. Willow. 9 flower. 195 bit. Filbert, flower. 195 ter. Filbert. 9 flower. 202. Mercnrialis. 9 flower. 197, 198) ; — dioecious {fl. dioici), when on separate plants {Willow, figs. 199, 200 ; Dog's Mercury, figs. 201, 202); — polygamous {fl. poly garni), when hermaphrodite flowers occur amongst the male or female ( Pellitory ). The general term diclinous { diclinus ) is applied to monoecious, dioecious, and polygamous flowers. THE CALYX. The calyx {calyx) is the whorl placed outside of the corolla and andrcecium. It is usually simple ( Wallfloxver ), sometimes double ( Magnolia , Trollius ) ; its component leaves are termed sepals ( sepala ). It is poly- sepalous {c. polysepalus), when its sepals are wholly separate ( Wallflower , fig. 8 ; Colum- bine, fig. 31) ; gamo- or mono-sepalous (c. gamo- or mono-sepalus ), when its sepals cohere more or less. A monosepalous calyx is partite (c. partitus), when the sepals are united at the base only ; and it may be hi- tri- multi-partite ( Pimpernel , fig. 203) ; — it is bi- tri- multi-fid , when the sepals cohere about half-way up ( Comfirey , 203. Pimpernel. Five- partite calyx and pistil. 204. Erytbroea. Five-fid calyx. THE CALYX. 47 Erythrcea, fig. 204) ; — it is hi- tri- multi-dentate or -toothed (c. dentatus), when tlie sepals are united nearly to the top ( Lychnis , fig. 205). In the monosepalous calyx, the connected portion of the sepals is the tube {tubus), the free portion the limb {limbus), and the point of union of these the throat {faux). ■ Sepals are sometimes prolonged into appendages at the base, as in Myosurus (fig. 206) and Heartsease (fig. 500), where the five sepals are attached to the receptacle by their 20G. Myosurus. Flower with'appendiculate calyx. 207. Campanula. Appemliculate calyx. 208. Lamium. Irregular calyx. 200. Larjkspur. Calyx prolonged into a hollow horn. centres ; in some Campanulas (fig. 207) the appendage is formed by the union of two lobes belonging to two contiguous sepals, between which it is placed. The calyx is regular (c. regularis, wqualis), when its sepals, whether equal or unequal, form a symmetrical whorl ( Wallflower, fig. 8; Pimpernel, fig. 203 ; Erythrcea, fig. 204; Lychnis, fig. 205) ; — it is irregular (c. irregularis, incequalis) , when the whorl is unsymmetrical {Lamium, fig. 208). In the Aconite the upper sepal forms a hood ; in Larkspur (fig. 209) it is prolonged into a hollow horn or spur. In the Tropoeolum (fig. 210), the spur is formed by the united and lengthened three upper sepals. In Pelargonium the upper sepal is produced downwards, and forms a tube adherent to the pedicel. In Scutellaria the five sepals form two lips ; of which the upper 210. Tropoeolum. Flower with calyx prolonged into a hollow horn or spur. protuberant one (fig. 211), after flowering, forms a shield to the ovaries, arching over them so as completely to envelop them, and meet the lower lip (fig-, 212). The tube of the monosepalous calyx may be cylindric {cylindricus, Pink, fig. 226) ; — cup-shaped {cupuliformis, Orange) ; — club-shaped {clavata, claviformis, Silene,Armeria) ; — bladdery {vesiculosus), when swollen like a bladder ( Winter Cherry, fig. 213); — tur- binate {turbinatus), when it resembles a top or pear {Black Alder) ; — bell-shaped 48 ORGANOGRAPHY AND GLOSSOLOGY. (camp anul atus, Kidney-bean ) ; — urceolate (urceolatus) , when it resembles a small pitcher (Henbane, fig. 214). The calyx is connivent ( s . conniventia), when the sepals bend towards each other (Ceanothus) ; — closed (s. clansas), when their edges touch without joining (Wallflower, fig. 8) ; — erect (s.erectas), when the sepals are vertical (Rocket, tig. 216. Folia. Fruit crowned by a calyx with toothed limb. 215. Quince. Fruit cut vertically. 217. Madder. 218. Chrysan- 210. Heliauthemum. Pistil crowned themum. Flower Fruit crowned by a calyx with without a by a paleated calyx obsolete limb. calyx. (mag.). 220. Valerian. Fruit crowned by a calyx with feathery tuft (mag.). 250) ; — patent (s. patentia), when they spread horizontally ( Mustard ) ; — reflexed (s. reflexus), when turned back so as to expose their inner surface (Bulbous Crowfoot). The calyx-limb may be petaloid (Iris) ; — foliaceous (Quince, fig. 215) ; — toothed ( Fedia , fig. 216) ; — reduced to a small membranous crown (Field Camomile)— or ring (c. mar go obsoletus, Madder, fig. 217) ; — or altogether suppressed (Chrysanthemum, fig. 218) ; in the latter case the calyx is said to be entire (c. integer), because its tube is considered to be confluent with the ovary, and undivided. The calyx-limb may be reduced to scales (squamw or palece, Heliauthemum, fig. 219) ; or to radiating bristles or hairs, called a pappus (pap- pus). Such a pappus may he plumose (p. plumosus) when each of its hairs is covered with long secondary hairs or barbs visible to the naked eye (Va- lerian, fig. 220; Salsify, fig. 221) ; - — simple (p. simplex) whentliehairs or bristles are smooth and silky (Dandelion, fig. 222). 221 . Salsify. The pappus, whether simple or with a plumose, is sessile (p. sessilis), when feathciy tuft. ^ie are inserted directly on the top of the ovary (Cornflower, Valerian, fig. 220) ; stipitate (p. stipitatus ), when the calyx-tube is prolonged into a slender neck above the ovary ( Dandelion , fig. 222 ; Salsify, fig. 221 ; Scabious, fig. 223). 222. Dandelion. Fruit crowned by a calyx with a limb in a simple tuft. 223. Scabious. Fruit open (mag.). Cfilyx with a stipitate tuft. THE CALYX. 49 Tlie calyx is deciduous (c. deciduus), when it falls with the corolla after flowering {Wallflower, fig. 8) ; — caducous or fugacious (c. caducus), when it falls as soon as 226. Pink. Calyx calyculate by opposite bracts. 224. Poppy. Young flower. Caducous calyx. 229. Scabious. Involucred fruit (mag.). 230. 'Wood Anemone. Foliaceous one-flowered involucre. 225. Mallow. Persistent calyx. 227. Mallow. Calycule of whorled bracts. 228. Strawberry. Flower with a calycule of stipules. the flower begins to expand {Pojppy, fig. 224) ; — persistent (c. persistens), when it remains after flowering {Pimpernel, fig. 203) ; — marcescent {marcescens) , when it withers and dries up, and remains attached to the fruit ( Mallow ) ; — accrescent (c. accrescens ), when it continues to grow after flowering ( Winter Cherry, fig. 213). ‘ Calycules ’ and Calyciform Involucres. — The calyx is sometimes accompanied by whorled or opposite bracts, simulating an accessory calyx ; to these have been given the name of calycule or outer calyx {caly cuius) . The Pink (fig. 226) has a ‘ calycule ’ E 50 ORGANOGRAPHY AND GLOSSOLOGY. of four bracts in opposite pairs. Tlie Mallow (figs. 225, 227) has, outside tbe five-fid calyx, a calycule of three bracts, and tlie Marsh Mallow one of six to nine bracts. The five green bodies beneath and adherent to the calyx of the Strawberry (fig. 228), and which alternate with the five sepals, are not a calycule of bracts but of pairs of stipules belonging to the sepals. The pitted cup with fringed margins which encloses each flower of the Scabious (figs. 223, 229) may be considered a calycule. Calycules are true one-flowered involucres, ana- logous to the many-flowered involuci’es of heads and umbels. The following are also one-flowered involucres : the three foliaceous cut bracts of Anemone (fig. 230), placed far below the calyx ; — the three entire bracts of Hepatica (fig. 231), also placed just below the calyx; — the many foliaceous bracts of the Winter Hellebore ( fig. 231 bis ), placed 231 &?.?. Winter Hellebore. Calyciform involucre near the flower. 231. Hepatica. Calyciform involucre near the flower. 232. Oak. Fruit with a scaly cup. 233. Filbert. Fruits with foliaceous cup. 234. Chestnut. Prickly involucre, containing three fruits. THE COROLLA. 51 almost in contact with the calyx; — the cup {cupula) of the acorn (fig. 232), which is composed of small imbricated scales ; — the foliaceous cup, with cut margins, of the Filbert (fig. 233). The pricldy cup of the Chestnut (fig. 234), and the calyciform cup of Euphorbia (fig. 235), only differ from the preceding in being many- flowered. THE COROLLA. The corolla { corolla ) is the whorl next within the calyx ; it is usually simple {Rose), sometimes edible, i.e. composed of several whorls {Magnolia, Nymph oea ) ; its leaves are petals {petala). Petals are usually coloured, that is, not green like the (usually foliaceous) sepals; some plants, however {Buckthorn, Vine, Narcissus viridiflorus), have green petals, while others {Helleborus, Aconite, Larkspur, Columbine, Fennel) have coloured or petaloid sepals. In the polypetalous corolla (c. polypetala, dialypetala) the petals are entirely separate from each other {Wallflower, Strawberry, Columbine) ; — in the monopetalous or gamopetalous corolla (c. mono- gamo-petala) the leaves .cohere more or less, so as to form a corolla of a single piece. The corolla is regular (c. regularis), when its petals, whether free or united, are equal, and form a symmetrical whorl; irregular (c. irregularis), when the reverse. A corolla may be formed of unequal divisions, and yet be regular ; this is when the petals are alternately large and small, the small being all alike and the large all alike ; or when its divisions are oblique, but all alike, the whole corolla being still symmetrical {Periwinkle, fig. 274). Polypetalous Corollas. — The petals are clawed {p. unguiculata) , when the broad part, or limb {lamina, fig. 9, l), is narrowed at the base into a petiole called the claw 236. Pink. Petal. 237. Ranunculus. Petal. 238. Barberry. Petal. 239. Lychnis. Petal. 240. Lychnis. Flower. {unguis, Wallflower, fig. 9 ; Pink, fig. 236) ; the petals of the Rose and Ranunculus (fig. 237) are shortly clawed ; those of the Philadelphus and Orange are sessile. The claw of the petal is nectariferous {u. nectarifer), when it bears a honey- secreting gland {Ranunculus, fig. 237) ; this gland may be protected by a scale (fig. 237), or naked {Barberry, fig. 238) ; and the claw itself is naked ( u . nudus), when it bears neither gland nor scale {Wallflower, fig. 9; Pink, fig. 236); the claw is winged {u. alatus), when it bears a longitudinal membrane on its inner surface {Rose Campion). Little pits ( fornices ) are often found at the point of junction of the claw 52 ORGANOGRAPHY AND GLOSSOLOGY. and limb, or forming small swellings inside the tube ( Lychnis Chalcedonica ) ; they also sometimes occur in monopetalous corollas. Small scales, placed within and on 243. Helleborus. Two-lipped petal. Two-lipped petal. Tubular petal. 211. Mignonette. 242. Inner and lateral petals. 246. Columbine. Petal in a hood or cornucopia. 245. Troll ius. Petal with one lip (mag.). 247. Aconite. Flower naked, without calyx ; petals hooded, pedieelled (mag.). the top of the claw, forming a sort of crown around the androecium and pistil, are collectively called a corona ( coronula , Lychnis dioica, figs. 239, 240 ; Mignonette, figs. 241, 242). The limb of the petal may be entire ( Wallflower , fig. 9), or toothed or fringed ( Mignonette , figs. 241, 242). Petals are generally flat ( p . plana), like the leaves ; but may be concave (p. con- cava, Barberry, fig. 238) ; — tubular with entire margins ( p . tubulosa, Helleborus foetidus, fig. 243) ; — bilabiate (p. bilabiata), or tubular with the mouth two-lipped ( Nigella , fig. 244 ; Winter Aconite, fig. 244 bis) ; — labiate ( p . labiata), when the tube terminates in a single lip ( Trollius , fig. 245) ; — hooded (p. cuculliforrnia, Columbine, fig. 246 ; Aconite, fig. 247) ; — spurred (p. calcar if or mia), i.e. forming a spur or horn ( Heartsease , fig. 248 ; 248. Heartsease. Flower cut vertically, showing the horn of the lower petal. 249. Larkspur. Petal in a spur formed of four united petals. 250. Pocket. Flower. 251. Chelidoninm. Flower. Larkspur, fig. 249). Hollow petals, of whatever form, usually enclose at the base a gland which is nectariferous when the flower expands, and the anthers open to shed their pollen. The regular polypetalous corolla is cruciform (c. cruciformis), when it consists of four petals placed crosswise ( Roclcet , fig. 250 ; Chelidonium, fig. 251) ; — rosaceous THE COROLLA. 53 (c. rosacea), when of five spreading, shortly-clawed, or sessile petals {Rose, Strawberry, fig. 252) ; — caryophyllaceous (c. caryophyllea), when of five clawed petals ( Lychnis , figs. 239, 240). The irregular polypetalous corolla is papilionaceous (c. papilionacea, Cytisus, figs. 253, 254), when composed of five petals, of which the upper or standard 252. Strawberry. 253. Cytisus. 254. Cytisus. 255. Cytisus. 257. Cytisus. Flower. Flower in profile. Front view of flower. Standard. Petals forming the keol. ( vexillum , fig. 255) is placed next to the axis, and encloses the four others in bud ; of these the two lateral wings {alee, fig. 256) cover the two lower, which are contiguous, and often adhere by their lower margins, and together form the keel [carina, fig. 257). Other irregular corollas are called anomalous (c. anomala, Aconite, Pelargonium, Heartsease, fig. 170). Monopetalous Corollas. — In these, the tube consists of the united portions of the petals, the limb is the upper or free portion, the throat {faux) is the top of the tube, and is usually reduced to a circular opening, but is sometimes lengthened or dilated {Comfrey, fig. 268). It must be borne in mind that the term limb, as 259. Heliotrope. 260. Heliotrope. 261. Pulmonaria. 262. Lycopsis. 263. Myosotis. Flower with naked Corolla laid open Corolla laid open Flower with bent tube Flower with closed throat (mag.). (mag.). (mag.). and closed throat (mag.). throat (mag.). applied to the corolla, has two meanings ; being used both to designate the blade of the leaf or petal, and the free upper portion above the tube of a gamopetalous corolla. The throat is appendiculate (/. op- pendiculata) when furnished inside with, and often closed by, variously formed appendages, which often answer to ex- ternal pits ; — it is naked (/. nuda) when these are absent {Heliotrope, figs. 259, 264. Myosotis. Corolla laid open (mag.). with closed throat (mag.). 260); — it is furnished with, but not closed by, long pencils of hairs in Pulmonaria (fig. 261) ; — closed by six swellings, each tipped with a pencil of hairs, and answering 54 ORGANOGRAPHY AND GLOSSOLOGY. to so many external pits, in Bugloss (figs. 265, 266) ; — closed by five swellings, answering to pits, in Myosotis (figs. 263, 264) and Ly cop sis (fig. 262) ; — closed by 2G6. Bngloss. Flower cut vertically, (mag.). 267. Borage. Flower. 268. Comfrey. Flower showing the pits between the sepals. 269. Comfrey. Corolla laid open, show- ing the five scales be- tween the five stamens. five scales, conniving, and forming a conical roof over the tube, and answering to five external pits, in Comfrey (figs. 268, 269) ; — furnished with five emarginate scales, in Borage (fig. 267) ; and bearing a crown of long, narrow, cut scales, in Oleander. The monopetalous limb is In- multi-partite, when the petals cohere at their bases only ( Pimpernel , fig. 277 ; Borage, fig. 267) ; 270. Campanula. 271. Cerinthe. 272. Chrysanthemum. 274. Periwinkle. Flower. Flower. Flower with tubular corolla. Flower. 273. Bindweed. Flower. -hi- midti-fid, when they cohere about half-way up, and the sinuses, as well as the segments, are acute ( Tobacco , Campanula, fig. 270) ; — hi- multi-lobate, when the segments are obtuse or rounded ( Myosotis , figs. 263, 264 ; Heliotrope, figs. 259, 260 ; Bugloss, fig. 265 ; Comfrey, fig. 268) ; — toothed, when the segments are very short (Heath, fig. 276). The regular monopetalous corolla is tubular (c. tubulosa), when the tube is long and the limb erect and continuous with it ( Cerinthe , fig. 271). The central flowers, called florets ( flosculi ), of Chrysanthemum (fig. 272) and allied plants with in- volucrate heads, have small tubular corollas. Such heads are called flosculose. They are infundibuliform (c. infundi- buliformis), when the tube insensibly widens upwards like a funnel (Bindweed, fig. 273) ; — hypocrateriform (c. hy- pocrateri-formis or - morpha ), when the straight and long tube abruptly terminates in a flat spreading limb, like an antique patera (Lilac, Jessamine, Periwinkle, fig. 275. Campanula. Flower. 276. Heath. Flower. THE COEOLLA. 55 274; Bugloss,i\g. 265) ; — campanulate (c. campanulata), when bell-shaped ( Campanula , fig. 275) ; — urceolate ( c . urceolata), when the tube is swollen in the middle, and the 280. Galeobdolon. Front view of tiower. — rotate (c. rotata), when the tube is suppressed, and the segments horizontal, and divergent like the spokes of a wheel ( Pimpernel , fig. 277 ; Borage, fig. 267) ; — stellate (c. stellata), when rotate, with the segments very acute {Galium). The irregular monopetalous corolla is bilabiate (c. labiata, bilabiata), when the limb is cut into two principal supei'imposed divisions {Ups), and the throat is open ; the upper lip consisting of two petals, and the lower of three. The upper lip may be entire, by the confluence of the two petals {Lamium, figs. 278, 279 ; Galeobdolon, fig. 280) ; or slightly split {Sage, Rosemary, fig. 281) ; or so deeply divided {Ger- mander, figs. 282, 283) that the two petals stand widely apart, and are confluent with the lower lip rather than with one another. In this case the corolla appears to consist of one five-lobed lower lip. Lastly, the upper lip is sometimes wholly suppressed, or distinguishable from the tube only by a notch {Bugle, fig. 284). The mid-lobe of the lower lip maybe entire {Rosemary, fig. 281); — bifid {Lamium, fig. 279; Bugle, fig. 284) ; — trifid {Galeobdolon, fig. 280). The personate corolla (c. personata ) is a form of the labiate, with the throat closed by a projection of the lower lip, called the palate {palatum) ; in many personate corollas the tube is tumid at the 282. .Germander. Back of flower. 2S3. Germander. Flower in profile. 284. Bugle. Labiate corolla with upper lip almost obsolete. 285. Snapdragon. Flower. base in the direction of the lower lip, and called gibbous (c. gibbosa, Snapdragon, fig. 285), or even spurred (c. calcarata, Linaria, fig. 286). Two-lipped corollas are often described as ringent (c. ringens), but this term being equally applied to both the labiate and personate corollas, it is superfluous, - 56 ORGANOGRAPHY AND GLOSSOLOGY. The ligulate corolla (c. ligulata ) consists of five confluent petals, of which the two upper join at their base only, but unite almost throughout their length with the three others, as do these with each other, so that the corolla has a very short tube, and a limb en- tirely formed of a finely-toothed % 291. Centran thus. Flower (mag.). 287. Chrysanthemum. 28G. Linaria. Flower with Flower. ligulate corolla. 288. Foxglove. Flower with anomalous corolla. 289. Cornflower. Sterile floret (mag ). ligule ( Chrysanthemum , fig. 287). Ligulate flowers are usually collected in an in- volucrate head, and are called semi-florets {semi-flosculi) . A head ( capitulum ) composed of semi-florets is called semi-flosculose ( Dandelion) ; one with tubular florets in the centre, and ligulate ones in the cir- cumference, is rayed (c. radiatum, Chrysanthemum, Marigold) . All other irregular monopetalous corollas are considered to be anomalous (c. anomala). Of these the corolla of the Fox- glove (fig. 288) resembles a thimble ; the flowers on the cir- cumference of the Cornflower (fig. 289) are large, irregular, and 290. Scabious. Ray floret. neuter ; those of the Scabious (fig. 290) are also very irregular and almost labiate; and Centranthus (fig. 291) has an irregularly hypocrateriform corolla, with an inferior spur to the tube. THE ANDRCECIUM. The androecium ( androecium ) is the simple or double whorl, placed within or above the corolla; the leaves composing it are called stamens {stamina). A complete stamen (fig. 292) consists of a petiole or filament (i filamentum. , f) and a limb or anther ( anthera , a) ; the anther is halved vertically by a median nerve, the connective { connectivum , c) ; each half consists of a cell {loculus, l) formed of two valves, the junction of which is marked externally by a furrow or suture. The back of the anther faces the corolla, and its face is opposite the pistil. The cellular tissue of the anther-cells is originally soft, pulpy, and continuous ; but when the anther is mature, this tissue becomes dry and powdery ; the two Yulves then separate along the suture ; the cell opens, and the parenchyma cells, THE ANDRCECIUM. 57 now called pollen, are ready to be conveyed to tlie stigma. The anther is rarely sessile, i.e. without filament (Arum, fig. 293). When the corolla is monopetalous, the stamens almost invariably adhere to it ( Belladonna , fig. 294) ; — amongst the few exceptions are Heaths and Campanulas (fig. 295). Insertion of the Stamens. — This term relates to the position on the floral axis which the stamens occupy relative to the other whorls. The insertion of the corolla always coinciding with that of the stamens, in the staminiferous monopetalous corolla the insertion of the stamens may be inferred from that of the corolla. Thus the stamens, like the corolla, are hypogynous ( st . hypogyna), when they do not adhere to the pistil or calyx, but spring from the receptacle below the base of the pistil (Ranunculus, fig. 296; Primrose, fig. 297); — perigynous (st. peri- gyna), when inserted on the calyx, rather above the base of the pistil, to which they are relatively lateral (Apricot, fig. 298 ; Campanula, fig. 295) ; — epigynous (st. epigyna ) when A inserted on the pistil itself (Coriander, fig. 299 ; v I ( djfb dele r, fig. 300). 297. Primrose. Flower cut vertically (mag.). 300. Madder. Flower cut vertically. 298. Apricot. Open flower. 299. Coriander. Flower cut vertically. The perigynous and epigynous insertions being easily confounded, the term oalycifioral (pi. calyciflorce ) has been given to all plants whose corolla (whether mono- or poly-petalous) and stamens are inserted on the calyx, and this whether the calyx be below the ovary (Apricot, fig. 298), or above it ( Campanula , fig. 295 ; Coriander, fig. 299; Madder, fig. 300). The term thalamifloral (pi. thalamif orce ) has been given to plants whose polypetalous corolla and stamens are inserted below the pistil, or hypogynous ; and corollifioral to plants with a monopetalous staminiferous corolla inserted below the pistil, or hypogynous (Primrose, fig. 297). 58 ORGANOGRAPHY AND GLOSSOLOGY. Number of the Stamens.- The flower is isostemonous [fl. isostemoneus), when the stamens equal the free or united petals in number [Coriander, fig. 299 ; Primrose, fig. 297) ; — anisostemonous [fl. anisostemoneus) , when they are fewer than the petals [Valerian, fig'. 301; Centranthus, fig. 291 ; Snapdragon, fig. 305), or more numerous than the petals [Sedum, fig. 302 ; Horse-chestnut, fig. 303 ; Ranunculus, fig. 290) ; — diplostemonous [fl. diplostemoneus) , when more than double the petals [Ranun- culus, fig. 296; Myrtle, fig. 304). The flower, according to the number of stamens, from one to ten, is said to be 301. Valerian. Flower (uiag.). 302. Sedum. Flower. 303. Horse-chestnut. Flower. 304. Myrtle. Flowering branch. mon-, di-, tri-, tetr-, pent-, hex-, hept-, oct-, enne-, dec-androus ; when above ten, the stamens are called indefinite [st. plurima), and the flower polyandrous [fl. polyandrus). Proportions of the Stamens. — Stamens are not always equal : they are clidynamous [st. didynama, Snapdragon, fig. 305), when four, of which two are the longest; this occurs in irregular monopetalous normally pentandrous flowers, in which four stamens alternate with four of the five lobes of the corolla, and the fifth stamen is suppressed. Stamens are said to be tetradynamous [st. tetradynama ) when six, of which two are small and opposite, and four large, and placed in opposite pairs 305. Snapdragon. Andrcociuin and half 306. Wallflower. 307. Stellnria. 308. Meconopsis. of corolla. Androecinra. Auclruecium. Flower cut vertically. ments sometimes cohere, so that each pair has been supposed to represent a double stamen. In polystemonous or diplostemonous flowers, the whorls of stamens are often unequal [Stellaria, fig. 307), but there is no special term for this modifi- cation. Cohesion of the Stamens. — Stamens are free [st. distinda, libera), when completely THE ANDRCECIUM. 59 independent of each other ( Meconopsis , fig. 308) ; — monadelphous ( st . monadelpha), when the filaments are more or less united in a single tube ( Oxalis , fig. 309 ; Mallow, 311. Cytisus. Andrcecium and pistil. 312. Lotus. Andrcecium and pistil. 301). Oxalis. 310. Mallow. Andrcecium and pistil. Andrcecium (mag.). 313. St. John’s Wort. Flower cut vertically. fig. 310; Cytisus, fig. 311); — diadelphous (st. diadelpha), when united into two columns (Lotus, fig. 312) ; — triadelphus (st. triadelpha), when in three bundles (St. John’s Wort, fig-. 313) ; — -polyadelphus (st. polyadelpha), when in several simple or branched bundles (Oranye, fig. 314 ; Castor-oil, fig. 315) ; — syngenesious (st. syngenesa), when the anthers cohere (Thistle, fig. 316). Sometimes the co- hesion extends to the filaments also (Lobelia, Melon, fig. 317). The stamens are said to be gynandrous (st. gynandra), V 315. Castor-oil. flower. 317. Melon. Andrcecium (mag.). 318. Aristolochia. Andrcecium and pistil (mag.). when they are united throughout their length to the pistil (Orchis, fig. 188; Ari- stolochia, fig. 318) ; in this case they are necessarily epigynous. The filament may be cylindric or filiform (Rose), or capillary (Wheat, fig. 335), or subulate or awl-shaped (Tulip, fig. 345), or flat and dilated at its base (Campanula, fig. 319). It is said to be bi- tri- cuspid,ate, when forked at the top, or three-toothed, With the mid-tooth antheri- 31:1. Campanula. 320. Onion. 321. Cram be. 322. Borage, ferous (Garlic-onion fj <>' pistil and ttamcn- stamen (mag.). Andrcecium and pistil. Stamen (mag.). 320; Crambe, fig. 321); — appendiculate, when it bears an appendage ; such 60 ORGANOGRAPHY AND GLOSSOLOGY. appendages are of various shapes and sizes, and may be produced before or behind the anther. In Borage (fig. 322), the anther is horned; in Self-heal (fig. 323), it is forked, &c. In the Mountain Alijssum, the filaments of the long stamens bear a 323. Self-heal. Stamen (mag.). 324. Alyssutn. Long stamens. 325. Alyssum. Short stamen. 32fi. Bntomns. 327. Polygala. Stamen (mag.). Androecium (mag.). 329. Mallow. Stamen (mag.). toothed wing on their inner face (fig. 324), and those of the short stamens have an oblong appendage at the base in front (fig. 325). Anther. — The anther is two-celled {a. hilocularis), when the two cells are sepa- rated by a connective ( Wallflower , fig. 11) ; each cell being originally divided in two by a partition or plate springing from the connective, of which no trace remains at maturity; — -four-celled ( a . quadrilocularis) , when this partition remains ( Butomus , fig. 326) ; — one-celled ( a . unilocularis) , when it presents only one cavity ( Polygala , fig. 327 ; Alchemilla, fig. 328) ; this often happens, either by suppression of one cell ( Malloiv , fig. 329), when the filament is lateral; or by fission of the stamen ( Horn- beam, fig. 330). Sometimes the anther is seated on a flat-lobed connective, when it contains as many cells as there are lobes of the connective {Yew, fig. 331). The anther is adnate {a. adnata), when its cells are confluent with the con- nective throughout their length {Hepatica, fig. 332). The connective is sometimes ver}r short, connecting the anthers by a mere point. The anther is didymous (a. didyma), when the point of union of the cells is above their middle {Euphorbia, fig. 333) ; — two-horned {a. bicornis), when, the point of the union being at the base of the cells, the latter are 330. Hornbeam. Stamen (mag.). 331. Yew. Flower (mag.). 332. Hepatica. 333. Euphorbia. 334. Heath. Stamen (mag.). $ Flower (mag. ). Stamen (mag.). 335. Wheat. Spikelet (mag.). erect and slightly diverge {Heath, fig. 334) ; — cruciate, when the point of union of the cells is precisely in the middle, and their extremities are free ( Wheat, fig. 335) ; — THE ANDRCECIUM. 61 sagittate {a. sagittata), wlien the upper portions only of the cells are united by the connective, and the lower portions slightly diverge [Wallflower, fig. 11 ; Oleander, fig. 340). The anther is usually ovoid, but may be oblong, elliptic, globose, square, &c. ; it is acute in the Borage (fig. 322), and sinuous in the Melon (fig. 317). The connective is sometimes developed 342. Pine. Stamen (mag.). 33G. Lime. 337. Periwinkle. Stamen (mag.). Stamen (mag.). 338. Sage. Stamen (mag.). 330. Rosemary. Stamen (mag.). 341. Heartsease. Two stamens, one with its tail (mag.). 340. Oleander. Stamen (mag.). transversely, when the two cells are placed wide apart ; in the Lime (fig. 336) the filament appears to bear two unilocular anthers ; in the Periwinkle (fig. 337), the cells are separate and tipped by a very thick connective ; in the Sage (fig. 338) the connective is greatly produced, forming a bent arm, longer than the filament, and bearing a cell at either extremity ; of these cells one alone contains pollen, the other usually enlarges into a petaloid scale ; in the Rosemary (fig. 339) the second cell completely disappears. The anther is often appendiculate. In the Heath (fig. 334), the appendages 345. Tulip. Pistil and andioecium. appear at the base of the cells as two small petaloid scales. In the Oleander (fig. 340) the connective is lengthened into a long feathery bristle. In the Periwinkle (fig. 337), the prolongation of the connective is large and hairy at the tip. In the Heartsease (fig. 341), the connective of two of the stamens lengthens above into a yellow, flat, triangular scale, and below into a glandular spur, which is lodged G2 ORGANOGRAPHY AND GLOSSOLOGY. in the hollow spur of the petal. In the Pine (fig. 342), the anther is tijyped by a bract-like connective. In Thuja (fig. 343), the filament bears a lateral three- celled anther, above which it dilates into a peltate disk. In the Cypress (fig. 344), the arrangement is the same, but the anther is four-celled. The anther is basifixecl (a. basijixa), when attached to the filament by its base ( Wallflower , fig. 11; Tulip, fig. 345) ; — suspended (a. apicifixa), when attached by its top (Vitex, fig. 346 ; Lamium, fig. 347) ; in this case the cells often diverge, their tops touch, and it becomes difficult to decide whether they are two-celled ; — dorsijixed (a. dorsijixa), when attached by the back ( Myrtle , fig. 348) ; — versatile (a. versatilis), when it rocks upon its filament, which in this case is not confluent with the connective, but attached to it by a finely pointed end ( Lily , Colchicum, fig. 349). The anther is introrse (a. introrsa), when the sutures are turned towards the centre of the flower ( Campanula , fig. 319 ; Thistle, fig. 316 ; Heartsease, fig. 341) ; — extrorse {a. extrorsa), when the sutures are turned towards the circumference of the flower {Iris, Ranunculus, Hepatica, fig. 332) ; in these two cases the valves of each cell are unequal. The sutures are lateral when the valves are equal ( Myrtle , fig. 348). Dehiscence. — The dehiscence, or separation of the If' A valves of each cell, may be vertical or longitudinal {a. I \ longitudinalis), and either from top to bottom, or the I i reverse ( Wallflower , fig. 11 ; Campanula, fig. 319) ; — or I I transverse {a. transversa), when it is horizontal, which principally occurs in unilocular anthers ( Alchemilla , fig. 328) ; — or apical by pores or slits (a. apice dehiscens), in 350. Nightshade. JSfiahtshade (fipf. 350), when the sutures open above only ; — 351. Berbens. Stamen (mag.). V 6 /’ . 1 „ . Stamen (mag.). or valvate [a. valvula dehiscens), when one valve ol a cell comes away in one piece; in Berberis (fig. 351) the posterior valve dehisces near the connective, and ascends elastically like a trap ; in Laurel the anterior valve does this ; in some Laurels with a four-celled anther, the dehiscence is by four such valves. Pollen. — Pollen varies in different plants, but is always alike in the same species ; 1 its grains are commonly ellipsoid (fig. 357) or spheroid (fig. 352), but sometimes polyhedral or triangular ( (Enothera , fig. 353) ; their surface is smooth, rugged, spinous ( Rose-mallow , fig. 352), or reticulate, &c. The ripe pollen-grain generally consists of two membranes’, the inner lining the outer, and containing a thick granular liquid, often mixed with minute oil - globule s ; this liquid, called the fovilla, is the essential part of the pollen. The structure of the pollen-grains may be easily observed when they are moistened, which causes them to burst, from the inner membrane expanding more than the outer, and rupturing the latter. At certain points of its surface the outer membrane is thinner than elsewhere, and there folded inwards, or it j iresents dots which are regarded as pores. In most cases the membrane swells ; at these points the fold disappears, the dots or pores enlarge, and the outer membrane bursts at the thin part ; the inner membrane, thus set free, emerges from g'.v-’ 35 i. Rose-mallow. Adult pollen. 353. CEnothera. Ripe pollen. 1 To this there are many exceptions. — Ed. THE ANDRCECIUM. (S3 the openings in the shape of a small tuhnlar bladder called the pollen-tube (fig. 353) ; this again soon swells, bursts in its turn, and allows the fovilla to escape in an irregular jet (fig. 354). Sometimes the thin portions are circular, and surround a sort of cap or covering (operculum) , which is pushed off by the inner membrane (Melon, fig. 355). 3.54. Clierrv. Ripe pollen, ejecting the fovilla (mag.). 355. Melon. Bipe pollen (mag.). 356. Pine. Ripe pollen (mag.). 357. Polygala. Pollen, seen lengthwise (mag.). 358. Polygala. Pollen, seen from above (mag.). 359. Orchis. Pollen-mas; separated from the style, with their retinacula (mag.). The pollen of the Cherry (fig. 354) and GEnotliera (fig. 353) opens by three poi’es, giving passage to three pollen-tubes ; that of the Melon (fig. 355) by pushing off six discoid caps, which open like doors, or are completely removed by the pollen-tube. In Pine pollen (fig. 356) the outer membrane splits into halves by the distension of the inner. The pollen of Polyyala (figs. 357, 358) resembles a little barrel, of which the staves, formed by the outer membrane (e), open by longitudinal clefts to allow of the passage of the inner membrane (f), The pollen of Orchis (fig. 359), instead of being powdery as in the previous cases, is composed of two waxy masses (masses pol- lings) supported on two small elastic stalks, named caudicles (caudiculi), and resting- on a flat glandular base, called the retinaculum ; these masses present a series of small angular corpuscles (massulce) joined by an elastic network, continuous with the caudicle ; each corpuscle again is formed of four pollen-grains, and each pollen- grain consists of a single membrane, which lengthens into a long tube containing the fovilla (fig. 360). The retinaculum is a portion of the anterior face of the style ; it secretes a viscous fluid, which agglu- tinates the originally free pollen-grains ; this viscous fluid is infiltrated between the grains, and adheres to them, then hardens, and forms the network which unites the grains together, and to the small stalk which bears the network (fig. 359). The pollen of Asclepias (fig. 361) is vei-y analogous to that of Orchis ; the five bilocular anthers are introrse, and rest against the sides of the stigma, which has five rounded angles ; each cell contains a compact mass of pollen, the grains of which are provided with a single membrane, and are closely united. At each angle of the stigma, between each pair of stamens, are two small viscous bodies (retinacula), from each of which a furrow 361. Asclepias. Pistil and pollen masses adhering to the stigma. 360. Orchis. Pollen mass and tube. 64 ORGANOGRAPHY AND GLOSSOLOGY. descends towards and abuts on the contiguous cells of two adjacent anthers. These furrows contain a soft viscid fluid, secreted by the rectinacula ; this fluid extends from the retinacula to the pollen-masses ; soon the two retinacula unite and solidify, and the viscid fluid in the furrows solidifying at the same time, forms a double fila- ment. This filament in hardening unites the two pollen-masses contained in the contiguous cells of two adjacent anthers, which thus form one body with the reti- naculum, and remain suspended to it, much as the scales of a balance are suspended to the beam. THE PISTIL. The pistil or gyncecium ( pistillum gynoecium) is the whorl which crowns the receptacle and occupies the centi'e of the flower, of which it terminates the giowth, just as the whole flower terminates the flowering branch. In most cases, the pistil is inserted directly on the receptacle; but in some cases the internode from which it springs lengthens, when it is called a gynophore (gynopliorum) , and the pistil is said to be stipitate ( Fraxinella , fig. 362 ; Rue, fig. 363). The leaves composing the pistils are the carpels ( carpella , carpidia ) ; their number varies ; they may form a single whorl ( Sedum , Columbine, Thalictrum, fig. 364) ; or several ( Trollius , fig. 365), or be solitary, by the suppression of one ft"" 362. Fraxinella. Pistil and calyx. 363. Rue. Flower. 364. Thalictrum. Pistil. 365. Trollius. Pistil. 366. Bladder Senna. Pistil. or more [Bladder Senna, figs. 366, 367 ; Peach, fig. 368). Under certain circumstances, the suppressed carpels may be developed, and complete the whorl ( Cherry , fig. 369), which has then two carpels ; or, as in some Mimosas, which have three to five, &c. The pistil is said to be mono- hi- poly-carpellary, o> according as there are one, 111% Q) two, or many carpels. In the very young pistil, each carpel makes its appearance as a small round or pointed, more or less spreading scale, the edges of which gradually approach, and finally unite and form a closed cavity ; or, instead of uniting together, they may adhere to the 3G7. Bladder Senna. Pistil cut vertically. 368. Peach, Pistil, portion of calyx and andrcecium. 360. Cherry. Pistil with two carpels. THE PISTIL. G5 edges of the contiguous carpels. The edges of the carpellary leaf (or sometimes its inner surface) present one or more small round bodies, attached to it directly or by a cord ; these are the ovules, and will eventually become the seeds ; the edges or surfaces bearing the ovules are the 'placentae ; the cord uniting the ovule to the placenta is the funicle ; the limb of the carpellary leaf is the ovary ; the upper portion of this limb, when it forms a slender pi-olongation, 370. Hellebore. Pistil. 370. Primrose. Pistil (mag.). 375. Lily. Pistil. becomes the style ; the extremity or top, which is variable in form, and always formed of a different tissue, is the stiyma. In the polycarpellary pistil the carpels are 1, entirely separate (c. distincta, Columbine, tig. 12; Thalictrum, fig-. 364; Hellebore, fig. 370) ; 2, coherent by their ovaries at the base only, or half-way up ( Fennel , fig. 371), or to the top {Flax, fig. 372 ; Stellaria, fig-. 373); 3, coherent by their ovaries and styles {Cactus, fig. 374; Lily, fig. 375) ; 4, coherent by their ovaries, styles and stigmas, so as to simulate a solitary carpel {Primrose, fig. 376; Heartsease, fig. 377); 5, coherent by their styles and stigmas only, their ovaries being- free {Periwinkle, fig. 454 ; Asclepias, fig. 361). Modern botanists, in deference to old usage, have continued to give the name of ovary to the union of several ovaries, which thus form a compound ovary ; they have similarly retained the names of style, stiyma, placenta, for the confluent styles, stigmas and placentas of several carpels. When the ovaries are free, their edges, being folded inwards and united towards the centre of the flower, form an apparently single, but really double placenta, which, when the fruit ripens, often splits into two partially seed-bearing placentas {Columbine, fig. 13 ; Sedum, fig. 378). In some very rare cases {Pine, fig. 379 ; Fir, Cypress, Thuja) the carpels remain long spread open and cpiite free ; later they approach and their surfaces unite, but without consolidating, and they thus form closed cavities in which the seeds are sheltered. The ovary, whether simple or compound, is superior or free {ov. super um, liberum), when it adheres to none of the neighbouring organs {Lychnis, fig. 380 ; Primrose , E 377. Hearts- ease. Pistil. 370. Pine. Ovuliferous scale represent ing a carpel spread out, with neither style nor stigma. 66 ORGANOGRAPHY AND GLOSSOLOGY. fig. 297). It is inferior ( ov . inferum ) when, instead of being placed above the level of the androecium, corolla and calyx, it is (apparently) below them, although still 380. Lychnis. Pistil cut vertically. 381. Myrtle. Flower cut vertically. 382. Saxifrage. Pistil and calyx cut vertically (mag.). 383. Gooseberry. Ovary cut transversely (mag.). 384. Mignonette. Ovary cut transversely (mag.). retaining its central position ( Myrtle , fig. 381). Most modern botanists explain this latter arrangement by assuming that the ovary is consolidated with the calyx-tube ; — a theory which prevailed during the first half of the present century, and the expressions ‘ ovary adhering to the calyx ’ and ‘ calyx adhering to the ovary ’ have been employed in all Floras and descriptive works. But a closer study of the development of organs has shown that the so-called adherent calyx-tube is in reality a cup-shaped expansion of the receptacle, which has enveloped the ovary, and that the calyx only commences at the same point as the stamens and petals. Hence, what has hitherto been called an adherent calyx-tube, ought to be called a recep- tacular tube or cup. We shall return to this question when speaking of the Torus. The ovary is said to be half-inferior (ov. semi-inferum) or half-adherent (ov. semi-adhwrens) , when it does not wholly adhere to the receptacular tube (Saxifrage, fig. 382). In the compound ovary (whether free or inferior) the partial ovaries may be variously united:—!, the edges touch (Gooseberry, fig. 383 ; Mignonette, fig. 384; Ovary cut Ovary cut Ovary cut Ovary 388. Poppy, transversely (mag.). transversely (mag.). transversely (mag.). cut transversely. Ovary cut transversely. Orchis, fig. 385 ; Cactus, fig. 386), when their union is marked by two contiguous placentas belonging to two different carpels ; the placentas are then said to be parietal (pi. parietales), and the compound ovary is one-celled (ov. uniloculare) ; 2, they are folded inwards so as to form vertical partitions, each composed of two confluent plates called septa (septa, dissepimenta) , belonging to different carpels ; these septa are incomplete if they do not reach the axis of the flower, so as to unite ; THE PISTIL. G7 390. Campanula. Ovary cut transversely. the placentas are then parietal, and the ovary one-celled ( Erythrwa , fig. 387 ; Poppy, fig. 388) ; the septa are complete if their edges meet in the axis of the flower ; a prolongation of the receptacle sometimes traverses this axis, which then forms a column ( columella : Mallow, Tulip, fig. 389 ; Campanula, fig. 390) ; through this column, whether in its origin it be receptacular, or (as is more usual) through the placentas, the nourishment of the ovules is conveyed, as well as through the carpels. When the septa are complete, there are as many cells as carpels, and the compound ovary is two- or more celled (ov. duo- pl/uri-loculare) ; and the placentas, united in pairs (two to each carpel), are central. The septa are usually formed from the endocarp of the carpels, with an interposed expansion of the mesocarp. Spurious dissepiments (d. spuria ) are vertical or horizontal septa, which are not formed by the union of the inflexed faces of two contiguous carpels; thus, in Astragalus (fig. 391), the solitary cai’pel is almost two- celled by an intruded vertical plate formed by a fold of the dorsal face ; in Flax (fig. 392), where there are ten septa, five project from the midribs of the carpels towards the axis, which they do not always reach. In Datura (fig. 393), the three carpellary ovary is four-celled from the inflexed contiguous faces of the carpels, after uniting in the axis, being reflexed inwards, and meeting a prolongation from the midrib of the carpel : the placentas are thus borne on a septum composed partly of EP MI.... Etr- 395. Wallflower. Young ovary (mag.) cut transversely. 391. Astragalus. Ripe pistil, open. 392. Flax. Ovary cut transversely, presenting five septa and five half-septa. Centre of ovary cut transversely. 394. Datura. Top of ovary cut transversely. the inflexed and then reflexed carpellary faces, and partly of a prolongation from the midrib. In the upper part of the ovary, the accessory septa (formed from the midrib) disappear, and two cells only are seen (fig. 394). In the Wallfloiuer, and allied plants (fig. 395), the two carpels are pressed together; along each of their two edges runs a double seed-bearing fibro-vascular bundle ; these are the four placentas arranged in pairs ; the pistil is two-celled, by a delicate and almost transparent false septum, to which the placentas form a sort of frame. This septum is supposed to be formed by the placentas ; for, when young, it is seen to be composed of four plates, which spring in pairs from each pair of placentas, and advance inwards till they join together ; later, this false septum appears formed of a single membrane, but it retains in the centre the trace of its double origin, in a vertical median line, along which it is easily divided without tearing. In Coronilla and Cassia (fig. 502), the young carpel is one-celled, but at a later 68 ORGANOGRAPHY AND GLOSSOLOGY. 3!)6. Nigella. Ripe ovary cut transversely. 398. Lychnis. Young ovary (mag.) cut transversely. 397. Cyclamen. Pistil cut vertically. period is divided into superimposed cells by septa formed of the parenchyma of the ovaiy, which is intruded horizontally between the seeds. Spurious cells ( loculi spurii) are cavities in the ovary which do not contain seeds. The young ovary of Nigella presents five cells, each containing two piles of ovules ; later (fig. 396) there appear ten cells, of which five in the centre of the fruit contain seeds attached to their interior angle ; the other five are exterior to these, and are empty, and due to the inflation of the epicarp (ep), which in swelling has dragged with it the mesocarp (m), whilst the endocarp (en) has re- mained in its place. Central placentas are fgl/f-'w f||§ i said to be free [p. centrales, Ub&rae), when they are not united by septa to the walls of the ovary, and appear com- pletely independent of the carpels ; this placentation is characteristic of Primulacece (. Pimpernel , Primrose, Cyclamen, fig. 397). To explain this isolation of the placentas, it is assumed that the edges of the carpellary leaves join throughout their length, and constitute a one-celled ovary, but that their basal edges dilate, and ascend in the middle of the cell to form a central mass of placentas. The placentas of Primulacece are thus confined to the bases of the carpels. The reverse is the case in the one-celled ovary of Combretacece, where the ovules spring from the top of the cell. In most Caryophyllea} {Pink, Lychnis), the placentas appear to be free, but this arises from the early evanescence of the septa, which can only be well seen in the very young flower (fig. 398). Some German and French botanists regard the carpellary leaf as a protective organ merely ; denying that it has the power of producing buds, and limiting this power to the floral axis. According to these, the axis alone produces ovules, and the carpellary leaves protect them. In the case of many-celled ovaries, they regard the edges of the carpellary leaves as folded inwards till they reach and cohere with the axile placentas (which in no wise belong- to them), the fibro-vascular bundles of the placentas losing themselves in the tissue of the styles, which are continuations of the midribs of the carpels. In unilocular compound ovaries they consider that the placentiferous axis branches like the spokes of a half-opened parasol, and that the branches run along the contiguous edges of the carpellary leaves {Heartsease, Mignon- ette, fig. 384; Orcliis, fig. 385). This modification of the carpellary theory of placentation rests on the isola- tion of the placentas in Primulacea; (fig. 397) ; on the enormous disproportion of the placentas relatively to the carpellary leaves in various plants {Lychnis, fig. 398; Campanula, fig. 390) ; and on the arrangement of the nerves in certain ovaries {Pea, fig. 14 ; Columbine, fig. 13), wherein two systems of fibro-vascular bundles are distinctly visible ; the one coming from the median nerve, the others THE PISTIL. 09 rising from the placentas, and communicating with the first ; which seems to indicate a union between the axis and carpels. The flower is isogynous {fl. isogynus), when the carpels of which the pistil is composed equal the sepals in number ( Sedum ) ; — anisogynous { fl . anisogynus) , when the carpels are fewer in number than the sepals {Saxifrage, Snapdragon, Comfrey) ; — polygynous {fl. polygynus), when the carpels are more numerous than the sepals {Ranunculus, Poppy). In pistils formed of consolidated cai-pels, the number of the latter is determined, either bj the number of styles, when these are free, or by the number of septa, or by the number of placentas, which are usually in pairs, and form vertical series, or fleshy protuberances. In pistils with parietal ovules {Butomus, Poppy, Gentian) the number of stigmas or styles or septa must be examined. The two- or more ovuled ovary (whether simple or compound, free or adherent) is always called many-ovuled {ov . pluriovulatum) . All ovaries are supposed to be normally many-ovuled, for each carpel having two placentas, and each jdacenta being normally one- or more ovuled, it follows that no ovary should have fewer than two ovules. A one-ovuled ovary {ov. uniovulatum) is hence regarded as resulting from the suppression of one or more ovules. The young ovary often contains two or more ovules, of which all but one are subsequently suppressed, as in the Peach (fig. 399), which is always two-ovuled when young; and in the Horse-chestnut and Oak, which have six ovules (fig. 400). The compound ovary is usually globose or ovoid; it is lobed {ov. lobatum), when the dorsal faces of the carpels are very convex, and separated by deep furrows (usually indicating the lines of junction, fig. 225), and according to the number, it is bilobed, trilobed, &c. The carpels are not always whorled ; but are sometimes arranged in a spiral, when they form a head or spike ; the receptacle at the same time lengthening into a hemispheric, conical, or cylindric axis {Strawberry, fig. 401 ; Raspberry, fig. 402 ; Ficaria, fig. 403 ; Adonis, fig. 404). Roses (fig. 405) present a precisely reverse arrangement; the carpels (ov), instead of rising 399. Peach. Young ovary (mag.) cut transversely. 400. Oak. Young ovary (mag.) cut transversely. 40]. Strawberry. Flower cut vertically. 402. Raspberry. Ripe pistil, cut vertically. 403. Ficaria. Carpels arranged in a head. 40 1. Adonis. Pistil (mag.). 405. Rose. Flower cut vertically. from a plane or convex surface, spring from the walls of a cavity (c) ; which will be described under the torus. In this (exceptional) case, the carpels are said to be parietal {ov. parietalia). 70 ORGANOGRAPHY AND GLOSSOLOGY. The compound st}de is improperly said to be simple ( st . simplex), when wholly undivided ; it is hi- tri-ficl, &c., when the component styles cohere beyond the middle ; hi- partite, &c., when they do not cohere to the middle. The styles of each carpel rarely bifurcate once or twice ; when they do, they are double or quadruple in number to the carpels ( Euphorbia , fig. 406). The style is terminal (st. terminalis), when it springs from the top of the ovary (Apricot, fig. 411) ; — lateral, when it springs more or less from the .st c.o side of the carpel, the top of which appears bent downwards (Straw- berry, fig. 407) ; — basilar (st. basilar is), when the top of the ovary is 408. Alchemilla. Carpel (mag.). 406. Euphorbia. 407. Strawberry. 409. Comfrey. Pistil. Carpel (mag.). Pistil and calyx cut vertically. 410. Sage. Lower portion of flower, cut vertically. bent down to a level with its base (Alchemilla, fig. 408). When there are many ovaries, with confluent basilar styles, the style is said to be gynobasic (st. gynobasicus, Comfrey, fig. 409), and the dilated base of this composite style, extending below the ovaries and surface of the re- ceptacle, 1 has' been called a gynobase 411. Apricot. Pistil cut vertically. 412. Lychnis. Young Ovary (mag.) cut trans- versely. Ep, epicarp ; End, endo- carp ; PL, placenta ; U) ovule ; TC, conducting tissue ; c, septum. 413. Snapdragon. Vertical section of style during fertilization, showing two pollen-grains on the stigma, and the pollen-tubes pene- trating between the cells of the style (mag.). D.c 414. Dandelion. Young pistil (mag.), open to show the two cords, c.p, of the conduct- ing tissue, of which one is broken. Car, ovary ; L.c, calyx ; D.6, epigynous disk ; r, raphe ; Ch, chalaza ; M, micropyle. (gynobasis). The gynobase is sometimes prolonged into a gynophore (Sage, fig. 410, g) ; but a gynophore proper must not be confounded with the gynobase ; the gynobase belongs to the styles, that is, to the carpels ; the gynophore proper belongs to the axis itself, of which it is the termination.1 The style is a portion of the carpellary leaf, contracted into a sort of longi- tudinal tube, filled with a moist and loose parenchyma, named conducting tissue Except under the view that the placentae are productions of the axis. — En. THE PISTIL. 71 (fig. 411, t) ; it is this tissue, which, spreading over the top or sides of the style, forms the spongy surface called the stigma (s). The same tissue descends from the style into the cavity of the ovary (fig. 412, tc), passes along the placentas (pl), and covers with its loose cells the micropyle of each ovule (g) ; and it is between these cells (fig. 413) that the pollen-tube, leaving the pollen-grain on the stigma, effects a passage to and fertilizes the ovule. In Composite, the conducting tissue consists of two threads (fig. 414, C.p, C.p), which descend from the base of the style upon the sides of the ovule, without adhering to it; at its base they join and enter the base of the funic! e, near the micropyle. In Statice (fig. 415), according to Mirbel, the conducting tissue (tis. c) resembles a pestle ; it enters the cavity of the ovary, im- mediately above the gaping micropyle of the ovule (ov.), which is suspended from a basal cord (cor.). This conducting tissue rests on the micropyle like the stopper of a decanter, and is visible after fertilization (fig. 416). Ovary cut vertically, 416. Statice. showing the ovule before Fertilized fertilization (mag.). ovule (mag.). 421. Rumex. 422. Parietaria. 418. Pistil (mag.). Pistil (mag.). Tobacco. Pistil. 417. Daphne. Pistil. 419. Wallflower. Pistil (mag.). The stigma (figs. 413 and 411 s) is nothing but the conducting tissue spread out; the stigmatic surface has no epidermis, and is usually spongy, damp, and papillose, and thus suited to retain the pollen. The stigma (whether simple or compound) is complete (st. com- pletum ) when it is continuous with the style, and clearly distin- guishable. The complete stigma may be globular {Daphne, fig. 417), hemispheric { Primrose , fig. 376), round ( Tobacco , fig. 418), forked {Wallflower, fig. 419), bi-lamellate {Datura), lobed {Lily, fig. 375; Melon, fig. 420), laciniate or fringed {Saffron, Rumex, fig. 421), penicillate {Parietaria, fig. 422 ), plumose {Wheat, fig. 423), discoid, conical, cylindric, club-shaped, awl-shaped, &c. It is superficial {st. super- 425. Ranunculus. Carpel (mag.). 423. Wheat. Flower (mag.). finale) when confined to the surface of a part of the style or ovary, and only 72 ORGANOGRAPHY AND GLOSSOLOGY. distinguishable by its papillae. Tlie superficial stigma is terminal in Fraxinella (fig. 362), Strawberry (fig. 407), Sweet Vetch (fig. 424) ; lateral in Ranunculus, where it is hooked (fig. 425) ; and in Hearts- ease (fig. 377), where it forms a hollow ball with a two-lipped 426. Pol}-gaIa. Pistil. 427. Iris. Pistil. 42S. Orchis. Flower without the ovary. ST, stigma ; R, retinaculum ; r, pollen ; L, anther-cell (mag.). 430. Cornflower. Style and stigmas (mag.). orifice; and in Polygala (fig. 426), where it forms a small very short lip (Sti.) on the sides of a style (Sty.) hollowed into a funnel, and spoon-shaped at the end ; — in Iris (fig. 427), in which the composite style divides into three petaloid plates with two unequal lips, the interior Yy ij of which is bifurcate, the stigmatic surface (Stig.) oceu- • pies a small transverse fissure between these lips ; — in Orchis (fig. 428), where it forms a shining and viscous cup (st) situated below the retinaculum (a) ; — in Lychnis (fig. 429) where it is papillose and transparent, clothing 431. Chrysanthemum . Pistil (mag.). 432. Eupatorium. Pistil (mag.). 433. Achillea. Floret (mag.). 434. Achillea. Semi-floret (mag.). 435. Achillea. Style of a floret (mag.). 436. Achillea. Style of a semi-floret (mag.). the furrowed inner faces of the styles ; — in Plantain, where its papillae form two velvety lines along the style. The stigma must not be confounded with certain peculiar hairs which some- times garnish the style, and are almost always directed obliquely upwards, and intended to catch the pollen ; they are most frequent in flowers with contiguous THE PISTIL. 73 introrse anthers. In these plants the young style is much shorter than the stamens ; it grows rapidly as the flower expands, and traverses the tube formed by the stamens, where its hairs, rubbing the anther-cells, open them, and sweep out the pollen which adheres to them ; they are hence called collecting hairs or brushes ( pili col- lectorcs). In the Corvflower (fig. 430) the stigmas (Sti.) are lateral and superficial, as in the Lychnis, and below them is a small swelling clothed with a tuft of very small collecting hairs (pc). In the Chrysanthemum (fig. 431), the two style-branches are papillose on their inner faces, and tipped by a little tuft of collecting hairs. In Eupatorium (fig. 432) the two style-branches are cylindric and bristle with collecting hairs ; and the stigmatic surfaces form a little band which extends from the fork half-way up the branches. In Achillea (figs. 433, 434), the heads of which are rayed, the central florets are tubular and hermaphrodite (fig. 433), and the circumferential are female semi-florets (fig. 434). Here the style-arms of the central florets (hermaphrodite) are papillose on the inner face, and tipped with a brush of collecting hairs; the semi-florets again, being female only, their style-arms (fig. 436) have no collecting hairs (fig. 435), but, as the pollen of the centre florets may reach them, their style-arms are papillose, so as to retain the pollen and secure fertilization. In Campanula the five style-branches (fig. 437) are papillose on the inner face, and subtended by five rows of collecting hairs, each row being double, and answering to the two halves of each anther. Before expansion, the style grows rapidly, the hairs are retracted within themselves, like the horns of a snail ; the pollen then disappears, and the style becomes clean, its surface being merely a little rough. The stigma is sessile ( st . sessile ) when, there being no style, it is seated directly on the ovary. In the Tulip (fig. 345) it forms three bi-lobed crests ; — in the Nettle, a pencil ; — in Arum (fig. 438), a little papillose tuft; — in the Vine (fig. 439), a flat- tened head; — in the Elder (fig. 440), three rounded lobes; in the Poppy (fig. 441), velvety radiating double crests, clothing the depressed styles, which together resemble a shield or cap with scalloped edges. The stigma is sometimes absent, and then the ovary remains open ; this is the case with Pine (fig. 379), Cypress, and Thuja., the female flowers of which are arranged in a spike; each is furnished with an outer bract, which soon withers and disap- pears ; each is formed of a scale representing an open carpel, without style or stigma? 437. Campanula. Pistil. 439. Vine. Androecium and pistil (mag.). 438. Arum. Pistil (mag.). 440. Elder. Pistil and calyx (mag.). 441 . Poppy. Pistil. 74 ORGANOGRAPHY AND GLOSSOLOGY. bearing at its base two ovules with a gaping micropyle ; after fertilization, these carpels thicken, harden, and become appressed, and form closed cavities which protect the seeds during their ripening. TORUS, DISK, NECTARIES. The torus is the part of the receptacle situated between the calyx and the pistil on which the corolla and androecium are inserted. It is merely the periphery of the receptacle, and not a special organ ; but for convenience of description it is so considered. The torus produces, besides stamens and petals, nectariferous glands and sundry 442. Columbine. Pistil surrounded by 443. Tree Peony, scales. Torus showing Flower without the corolla the scars left by and most of the stamens, the stamens (mag.). 444. White Water-Lily. Pistil and cup bearing the petals and stamens. 445. Orange. Vertical section of pistil and receptacle. T, torus ; c, calyx. expansions analogous to petals or stamens. Thus, in the Columbine (fig. 442), between the androecium and the pistil, are ten membranous silvery white scales, with folded edges, larger at the base than at the top, which may be considered as filaments, and which sometimes bear an anther at their extremity. In the Tree Peony (fig. 443), the thick swollen torus elongates into a membranous cup surrounding the carpels, without adhering to them, and open at the top to afford a passage to the stigmas : it appears to form a part of the fruit, from which it is nevertheless very distinct. This petaloid involucre sometimes bears anthers. In the White Water Lily (fig. 444) the stamens and petals cohere with the torus, which envelops the ovary, so that they appear to adhere to the ovary; they die after flowering, leaving the torus marked with their scars. In the Yellow Water Lily, the thick cup, externally green and Flower witout^oroiia flaccid, which some botanists have considered as a torus envelop- ing the ovary, is nothing but the epicarp of the ovary; at maturity it bursts irregularly, and comes away, leaving the seeds retained by the endocarp, when they fall to the bottom of the water and germinate. The torus often forms, below the ovary, a projecting ring or swelling, from which spring the stamens and petals ( Orange , fig. 445 T ; Mignonette, fig. 446) ; but more often this ring, reduced to its most simple form, only appears as a circular line TORUS, DISK, NECTARIES. on the receptacle, between the pistil and the calyx (Clielidonium, fig. 447). In every case the androecium and corolla, being inserted on this ring and below the pistil, are hypogynous, and the plant thalamifloral if the petals are free, corollifloral if they are coherent. In many plants the receptacle dilates into a cup, which represents a calycinal tube, over which the torus is spread, 448. Apple. Young fruit cut transversely. 447. Cheliclonium. Pistil (mag.). 449. Apple. Fruit cut vertically. and the stamens and pistils spring from its outer margin (Strawberry, fig. 401 ; Apricot, fig. 449). In others it rises upon the carpels, envelops them closely, and forms with them but one body, upon the circumference of which the stamens, petals and calyx are inserted at a higher level than the ovary (Myrtle, fig. 381 ; Saxifrage, fig. 382). This cup, enveloping the carpels and formed by the growth of the receptacle, is the calyx-tube of modern Floras, which it would be better to call a receptacular tube or cup. This hypertrophy of the receptacle is particularly striking in orchard fruits. If we halve an unripe pear or apple (fig. 448), we find five carpels, forming five two- ovuled cells, surrounded by a fleshy mass, the so-called calycine-tube (better called receptacular cup), which has closely enveloped them, and agglutinated them by their lateral faces, but left their inner edges free. A vertical section of a ripe apple (fig. 449) exhibits a fibro -vascular bundle, extending from the peduncle, with which it is continuous, to the carpels (e) ; it is the parenchyma of the receptacle, which has here enormously increased in bulk to envelop the ovaries (t) ; at the summit of this mass, that is to say, at the top of the fruit, the remains of the sepals and stamens may be seen carried up by the expansion of the receptacle. The receptacular theory of the calycine-tube completely explains the arrange- ment of the carpels of a Rose (fig. 405). In this, the position of the carpels on the internal wall of a calycine-tube was difficult to admit ; the whorls of the flower being lateral expansions of the axis, it was impossible, in defiance of the law of the evolution of floral whorls, to attribute to the calyx the power of producing carpels. The position of the coloured ring from which the petals and stamens rise is the key to the apparently abnormal position of the carpels ; this ring surmounts the ovoid body enclosing the carpels ; the torus has therefore reached that point before emit- ting laterally the petals and stamens ; and since the torus is nothing but the circumference of the receptacle, it is evident that it must be the latter organ which constitutes the hollow body enclosing the carpels. In fact, the receptacle, instead of forming, as in the Strawberry (fig. 401), a hemisphere, has swollen, risen much above its ordinary level, and formed a sort of cup ; thus resembling the finger of a glove turned inside out, the normally outer or convex surface becoming the inner, or concave, one. Were the convex receptacle of the Strawberry reduced to a thin 7 G ORGANOGRAPHY AND GLOSSOLOGY. membrane, and turned inside out, the sepals would then form a ring round the mouth of a sort of bottle, represented by the inverted receptacle, whose throat would be occupied by the stamens and petals, and its inner surface by the ovaries ; and the strawberry would be thus changed into a rose. The last evidence of the hollow body of the rose being a cup-shaped expansion of the axis rests on the cases in which the receptacle forms, instead of a cup, a central convex projection, which bears carpels ; the rose thus being converted into a strawberry. In all these cases the plant is calycifloral ; the stamens and petals are not liypogynous, as in the Lychnis (fig. 380) and Primrose (fig. 297), but are inserted above the base of the pistil, at the distal end of the torus ( Sumach , fig. 450), or on the outer circumference of a ring or cup formed by the torus (Circcea, fig. 450 bis; Alchemilla, fig. 451); they are thus either perigynous or epiyynous, accord- 450. Sumach. Flower cut vertically (mag.). 452. Nasturtium. Flower cut vertically. ing to their insertion around (fig. 450) or above the ovary (fig. 450 bis). When the torus both spreads over the base of the calyx and around that of the ovary, the andrcecium may be liypogynous, and the corolla peri- y ■ ,;y|, gynous ; this is very rare, but occurs in Tropceolum (fig. 452). The term disk has been reserved for the tumid ring which, in liypogynous flowers, surrounds the base - % 4M) bts Circzea. Flower cut vertically. 453. Radish. Pistil and nectaries. 455. Sedum. Pistil and nectaries (mag.). 457. Parnassia. Petal and nectaries. 456. Fritillary. Stamen, petal and nectary. 454. Periwinkle. Pistil and nectaries. of the ovary ( Orange , fig. 445) ; and for the thickening which crowns the inferior ovary, enclosing the base of the style ( Circcea , fig. 450 bis). These thickenings of ARRANGEMENT OF APPENDICULAR ORGANS. 77 tlie torus are glandular, and usually secrete honeyed fluids, whence they have been classed with nectaries, of which we are about to speak. Nectaries or nectariferous glands are usually developed from the torus, and placed upon it or the organs developed from it. The receptacle of the Radish (fig. 453), Wallflower (fig. 10), and other Cruciferce, bears four or six glands ; — the Periwinkle (fig. 454) two ;—8edum (fig. 455) five ;— most Gesneriacece also five ; but in this Order all intermediates between five free glands and a large bypogynous or epigynous disk are to be found. In the Straw- berry (fig. 401), Peach (fig. 368), and other Rosacece, the orange-yellow layer of the torus, which is spread over the calyx, secretes superficially a honeyed liquor ; but often for so short a time that it is difficult to observe it. In Ranunculus (fig. 237) a small nectary occurs, protected by a scale, at the base of the claw of each petal. In Berberis (fig. 238), each petal bears, a little above the base, two naked ovoid necta- ries. In the Fritillary (fig. 456), the six petaloid perianth-segments each bear a nectary a little above the base, which, instead of projecting, forms a furrow. In the Lily, a double nectariferous furrow extends along the face of the midrib of each petal. In Parnassia (fig. 457), opposite each petal there is a petaloid scale which ramifies into three, five, seven, nine, or fifteen branches, each tipped by a globular nectary. Nectaries are sometimes on the tip or base of the connective of the stamens, as in Adenanthera, Prosopis, &c. In Heartsease (fig. 458), two nectaries pro- ceed from two of the stamens, and, projecting from the connective at the base of the anther, form two recurved tails, sheathed in the hollow horn of the lower petal, at the base of which they secrete a sweet liquor from their tips. It has already been remarked that hollow petals contain a nectary in their cavity ( Columbine , fig. 246 ; Aconite, fig. 247 ; Niyella, fig. 244; Ilelle- 4j8' pfstiiteease' bore, fig. 243; Winter Aconite, fig. 244 bis) . and androecium. In monopetalous corollas the nectaries may be superficial (. Honeysuckle , Lilac), or occupy a cavity which externally forms a boss or spur ( Linaria , fig. 286 ; Snap- dragon, fig. 285; Centranthus, fig. 291); in the latter case the corolla is irregular, and the stamens are often imperfect; but it is difficult to say whether the necta- ries are the cause or effect of this irregularity. Nectai’ies are not confined to the torus ; they are found on the external surface of the calyx in Malpighiacece ; and a glandular secreting layer occurs in the thick- ness of the septa of the ovary of Liliacece, named by Brongniart { glandes septales.’ In unisexual flowers, it often happens that the absent organs are replaced by necta- ries {Melon, and many other diclinous plants). ARRANGEMENT OF APPENDICULAR ORGANS AROUND THE AXIS. Appendages or appendicular organs are lateral developments from the vegetable axis : — the leaves, bracts, sepals, petals, stamens, and carpels. It has been stated (Introd. p. 2), that leaves are either opposite, whorled, or 78 ORGANOGRAPHY AND GLOSSOLOGY. alternate ; as also (p. 42) that the floral organs (calyx, corolla, androecium and pistil) are normally wliorled; but we have warned the reader that very frequently the leaves of each series, instead of forming a true whorl, are arranged in successive flattened spirals, though still retaining the name of whorls. We will now advert somewhat in detail: 1. To the arrangement of leaves properly so called, carpellary leaves, and bracts (this branch of Botany is called Phyllotaxy) ; 2. To the arrangement of the petals and sepals, an arrangement termed Vernation, because it can only be satisfactorily studied before the flower expands. PHYLLOTAXY. When leaves are clearly whorled, either in twos (opposite), threes, fours, fives, &c., they are generally separated by equal intervals, and consequently the arc com- prehended between the bases of two contiguous leaves is equal to the circumference of the stem, divided by the number of leaves in the whorl. This arc will therefore embrace half the circumference if the whorl consists of two leaves ; one-third of the circumference if it consists of three ; one-fourth, one-fifth, one-sixth, if it consists of four, five, or six leaves. It has also been observed that the leaves of a whorl are not placed directly above those of the whorl immediately above or below them, but opposite the intervals which separate the leaves, and either exactly opposite, or to one or the other side of the interval. When the leaves are opposite, and each pair crosses the upper and lower pair at right angles, the leaves occupy four rectilinear lines, and, seen from above, form a cross; such leaves are decussate (/. decussata). Whorls of three or four leaves will in like manner occupy six or eight longitudinal lines. Whorled leaves are relatively few ; many more plants have opposite leaves, and by far the largest number have alternate leaves ; and it is by the latter that the arrangement of leaves on the stem must especially be studied. We have seen (p. 3) that the Oak presents five leaves (1, 2, 3, 4, 5), spirally arranged around the stem, so that the one (6) which succeeds the fifth is placed vertically above the first. In a longer branch, the seventh would be placed above the second, the eighth above the third, &c. This spiral arrangement prevails in many woody and herbaceous plants, as the Peach, Plum, Cherry, Rose, Raspberry , Hawthorn, Spiraea, Cytisus, Poplar, Willow, Sumach, Wallflower, Mignon- ette, Heartsease, Groundsel, Poppy, &c. The naturalist Ch. Bonnet, who was the first to observe this arrangement of alternate leaves, remarked that their points of insertion were separated from each other by equal intervals, and discovered some more complicated arrangements, as that, instead of the sixth leaf, it is often the ninth or even the fourteenth which is placed vertically above the first, indicating a series of eight or of thirteen leaves. Modern botanists have followed up this subject, and have formulated as laws the facts which Ch. Bonnet had not generalized. To begin with the simplest example of alternation of leaves, that in which the leaves alternate on opposite sides of the stem (Lime, Ivy, Elm, Hazel, &c.) : if a PHYLLOTAXY. 79 thread be carried round the stem so as to touch the insertions of these leaves, it will describe a regular spiral. If one of these leaves be taken as a starting point, and if they be counted from below upwards, it will be perceived that 3 is above 1, 4 above 2, &c. ; and all are arranged on two equidistant vertical lines, being separated by half the circumference of the stem. Leaves thus placed are called distichous (fig. 69). If three leaves complete one turn of the spiral, the fourth will be vertically above the first, the fifth above the second, &c., and all will be arranged on three equidistant vertical lines, and separated from each other by a third of the circum- ference of the stem. Such leaves are termed tristichous ( Galingale , Gar ex, and many monocotyledons) . In the Oak, Poplar, Plum, &c., where the leaves are arranged in fives, and occupy five vertical equidistant lines on a branch, these lines divide the circum- ference of the branch into five equal portions, and are separated by an arc equal to one-fiftli of the circumference of the stem. But here it is important to remark, that if, taking one of these leaves as the starting-point, we examine the successive leaves of the spiral, the leaf which follows or precedes number one is not situated on the nearest vertical to that to which number one belongs, but on that which comes after number two, and that this vertical is at two-fiftlis the circumference from the first. Here the spiral is not completed in one turn by two or three leaves, as in the two preceding cases ; for the intervals between the five leaves are such that, before arriving at the sixth, which is immediately above the first, the spiral passing through their points of insertion would make two complete turns round the stem ; the distance between the leaves will therefore be two-fifths of the circumference. This arrangement is called the quincunx. The name cycle is given to a, system of leaves in which, after one or more turns of the spiral, a leaf is found immediately above the one from which we started, and beginning a new series. To obtain a complete idea of the cycle, we must therefore consider, besides the number of leaves which compose it, the number of spiral turns they occupy. The angle of divergence of two consecutive leaves is measured by the arc between them. Thus the fraction A expresses the angle of divergence of tri- stichous leaves, and the fraction J- the angle of divergence of quincunx leaves. As to distichous leaves, the term angle cannot aj)ply to their divergence, being half a circumference, but it is expressed by the fraction i. These fractions have for their numerator the number of the spiral turns of which the cycle is composed, and for denominator the number o( leaves in the cycle, or, to speak more exactly, the number of spaces separating the points of insertion of these leaves. A cycle may therefore be designated by the fraction expressing the angle of divergence, since the denominator of this fraction indicates the number of leaves, and its numerator the number of turns. Besides the three cycles mentioned above, designated by the fractions a, |, we find cycles of eight leaves in three turns, i.e. § ; thirteen leaves in five turns, T\ ; twenty-one leaves in eight turns, ; thirty-four leaves in thirteen turns, J ; 80 ORGANOGRAPHY AND GLOSSOLOGY. fifty-five leaves in twenty-one turns, l ; eighty-nine leaves in thirty-four turns, j’-* ; one hundred and forty-four leaves in fifty-five turns, &c. Now, if we arrange this series of fractions progressively, 1 1 2. 3 5_ 25 35 55 85 T35 _8 JL3 2_ 1_ 2 15 3 45 5 55 3Jt _5_j5_ 8 95 1 4 45 several curious analogies will appear, of which the most striking is, that each frac- tion has for its numerator the sum of the numerators of the two preceding fractions, and for denominator the sum of the two preceding denominators. In like manner any one of these fractions may be obtained by taking the two fractions which imme- diately follow it, and finding the quotient of their numerators and denominators. It is easy to obtain these fractions when the leaves are neither too distant nor too crowded on the stem, as often happens. The spiral which takes in all the leaves is called a primitive spiral. But if the internodes are long-, the leaves consequently remote, and the cycle composed of a considerable number of leaves, it becomes diffi- cult to ascertain by inspection which leaf is vertical to the first, and hence to esti- mate the ano-le of divergence be- tween two con- secutive leaves. This becomes still more difficult when the leaves are crowded, as in the rosettes of the Houseleek, in Plan- tains and other so-called stemless plants, in the bracts of heads [Artichoke) ; or in the scales or open carpels which com- pose the cones of Pines, Firs, Larches, &c. In the case of crowded leaves, we can, however, by a very simple calculation, ascer- 4-f>9 a. Primitive spiral from right to left, and bearing three cycles, each of eight leaves, shown by the tllill tll0 chlio’lo of numbered point-, and inserted on three turns of the spiral. The secondary spirals, formed to the # & right by the numbers in fives, are indicated by the finely dotted lines; the secondary spirals, clivT6rQ*011C0, Lilicl formed to the left by the numbers in threes, are indicated by the lines ® thus determine the primitive spiral. Take, for example, a stem bearing a series of cycles of eight PHYLLOTAXY. 81 leaves moderately separated on three turns of the spiral ; the cycle will be easily recognized, and the expression of the angle of divergence will be f . This arrange- ment obtains in many succulent plants, and especially in Sedum Telephium. Suppose the stem to be shortened, so that the leaves become crowded into a rosette, it follows that the spiral will become a very close one, comparable to a watch-spring of which the coils contract in approaching the axis (fig. 459 c). Let us suppose, further, that the inner end of this spring represents the top of the spiral, and its outer extremity the base ; it is obvious that on this depressed spiral the leaves nearest the centre would have been the nearest to the top of the more open spiral, and those nearest the circumference would have been the lowest. Now, knowing the angle of divergence of the leaves of Sedum in a normal state, it remains to find it for the same leaves gathered into a rosette ; for this it suffices to represent or plan three or four cycles, of three leaves each, according to the fraction §, that is, each cycle to contain eight leaves, that shall occupy three turns of a right-to-left spiral, and be separated by an arc equal to § of the circumference (fig. 459 a). A circle must then be drawn around this spiral, of which the radius shall join the two extremities of the spiral ; it is by means of this circle that we must be guided in laying down the angular divergence of the leaves, which being f , it follows that the circle must be divided into eight equal portions by as many radii, when three of these portions will represent f of the circumference, or in other words the angle of divergence. This done, we place a number (1) on the position of the first leaf, which is where the spiral touches the circumference ; then follow the coils of the spiral, and after clearing the three first arcs (§ of the circumference) indicate the position of the next leaf (2), which will be at the intersection of the spiral and radius which bounds the third arc ; and so on, a leaf position being marked at the intersection of every third radius with the spiral ; till the centre of the spiral being reached, the plan will represent the entire series of leaves, numbered in order. Let us now examine the relative positions of the leaves, as indicated by their numbers. If we examine the radius bearing leaf No. 1, we shall see above it on the same radius, Nos. 9 and 17, the difference between which is eight, and it is obvious that this horizontal radius would represent a vertical line on the Sedum stem, along which the leaves 1, 9, and 17 are inserted, each marking the commencement of a cycle ; as also that these leaves are separated by three turns of the spiral. Com- mencing at any other radius (say Nos. 2, 10, 18, &c.), the result is the same, the fraction f being clearly expressed. There are other relations between these leaves, which this plan clearly demon- strates. Thus, between Nos. 1 and 4, situated on the next radius to the left, there is a difference of three ; the same between 4 and 7, &c. ; and starting from leaf No. 2 or 3, we shall find the same numerical relations as in the first instance ; the number expressing the difference (3) being the same as that of the series. If we now draw a line through the positions of all the leaves of each series, we shall see that each line is a portion of a spiral, and that these three partial spirals take the G 82 ORGANOGRAPHY AND GLOSSOLOGY. same direction, and include within their course the points of insertion of all the leaves. If, on the other hand, starting from No. 1, we examine its relations with No. 6, on the radius next to the right, we find between them a difference of five ; and similarly with 6 and 11, 11 and 16, &c. ; and between Nos. 2 and 7, and Nos. 12, 17 and 22, and along the series commencing with 4 and 5. Here again, from left to right, the number expressing the difference corx-esponds to that of the series. Each of these series may be shown more clearly by means of a curved line uniting all the leaves which compose it, and we shall then have five segments of a spiral turning symmetrically from left to right, and passing through the insertions of all the leaves. These segments of the spiral have been termed secondary spirals, to distinguish them from the primitive spiral, also termed generating spiral. Now it will be remarked that the secondary spirals proceeding from right to left are three 459 c. Rosette forming a cycle of thirteen leaves, of 459 6. Rosette forming two cycles of eight leaves, which the angle of divergence is ^ ; the axis A, where of which the angle of divergence is j. they are inserted, bears five turns of the spiral, show- ing the point of insertion of each leaf. in number, which number is the numerator of the fraction § ; and that the sum of these three, and of the five going from left to right, is eight, or the denominator of the fraction. If therefore it is possible to count the secondary spirals to left and right, of rosettes, involucral bracts, or scales of Pine cones, in all of which the primitive spiral is obscured by the closeness of the parts, we may assume that the smaller number represents the numerator, and the sum of the two numbers the denominator of the desired fraction ; which again gives the angle of divergence, the number of leaves in the cycle, and the number of turns of the spiral which they occupy. This crowding of the leaves, which we have illustrated by Sedum, is frequent amongst plants with radical leaves, in many of which the cycle of the leaves is indicated by the fraction § ( Common Plantain, fig. 459 b). The number of secondary spirals to right and left being known, it is easy to number each leaf in the primitive spiral. Take, for example, the rosette (fig. 459 c), which represents a Houseleek, or the cone of the Maritime Pine (fig. 459 d). Their PHYLLOTAXY. 83 angle of divergence is t5j, wliicli is easily found by counting the very obvious secondary spirals to right and left. We have only alluded to the most obvious secondary spirals ; but it will readily be understood that there are many others, some more, some less oblique than these, and that every numerical series having the same relative differences between them would be a spiral. The secondary spirals are especially visible in Pine cones, the axis of which is much longer than that of the Houseleeh, and in which they form very distinctly marked parallel series.1 Begin by numbering as 1 one of the outer leaves of the rosette, or of the lower scales of the cone, and regard it as the first of a secondary spiral turning from left to right. To find No. 2 on it, re- member that the numbers of a secondary spiral must be separated by a space equal to the number of the secondary spirals of which this forms a part ; and as there are five parallel left-to-riglit spirals, the second leaf or scale must be numbered 6, the third 11, and so on to the top of the cone, or centre of the rosette. Having thus numbered all the scales or leaves of one of the five parallel secondary left- to-riglit spirals, these numbers may serve as start- ing-points from which to number all the other scales or leaves of the cone or rosette. We know that each of the numbered scales or leaves of the secondary left-to-riglit spiral equally forms ^ILker™ £co™”o their\^atw“L1gh” one in the series of the right-to-left spirals, and we S* may number all the leaves or scales from any 10 the left by the series o£ numbers in eights. starting-point, by adding 5 when turning to the right, and 8 when turning to the left. Let us take, for example, No. 32 ; this number in the left-to-riglit spiral would (adding 5) lead us to No. 37, 37 leads to 42, and so on; but since No. 32 also enters into one of the eight secondary right-to-left spirals, the leaf or scale succeed- ing it in this spiral should be numbered 32 + 8, i.e. 40 ; and following this spiral, by additions of 8, we should have 40, 48, 56, 64, 72, &c. To obtain in the same spiral the numbers below 32, we must deduct the number 8, which we had before added, and we shall have successively 32, 24, 16, 8. If, in starting from the same No. 32, we descend the secondary spiral which turns from left to right, we must take 5 from 32, when we shall have successively 27, 22,17,12, 7, 2, Ac. All the leaves or scales of the rosette or cone being numbered, their succession 1 Nothing is easier than to observe this, by numbering the scales of a ripe cone of the Maritime Pine. OEGANOGEAPHY AND GLOSSOLOGY. indicates the generating spiral. But the direction of this generating spiral from left to right, or right to left, depends on the angle of divergence; if the fraction he f, or or H, and so on, the primitive or generating spiral will follow the most nume- rous secondary spirals ; but if the fraction be f, or /T, or ft-, &c., the generating spiral will follow the least numerous secondary spirals. Tahe, for example, the fraction | (fig. 459 a), and let us examine the relation be- tween the genera- ting and secondary spirals. Whatever may be the direc- tion of .the genera- ting spiral, the least numerous secondary spirals must follow the same, and vice versa. Suppose the spiral to be aright- to-left one, as in 459 a, it follows that, placing No. 1 where the radius touches the outer end of the spiral, and successively numbering the leaves from 4- to 4 the nearest radius to the left will be occupied by a leaf before the nearest 459 e. Primitive spiral from right to left, hearing five cycles, each of thirteen leaves, indicated by l • ± n • 7 , the numbered points, and inserted on five turns of the spiral. The secondary spirals, formed to the J ctCllUS LO LllG VlCfllt. right by the numbers in fives, are indicated by the finely dotted lines; the secondary spirals, rni r» j i formed to the left by the numbers in eights, are indicated by the lines . 111 S b 163/1 Oil the left radius will evidently be No. 4 ; for it will occur after traversing three a (|) ; that is, after one entire revolution, plus A, and consequently on the left-hand radius nearest the one from which we started. The leaf which will be found on the right radius will evidently be No. 6, for it will occur after five times (x¥5), that is, after one re- volution minus a, and consequently on the nearest right-hand radius. Now we know that the number of secondary spirals is equal to the difference between the numbers of two consecutive leaves on one of these spirals : therefore, if we suppose the fraction to be the number of the secondary spirals from right to left, that is, of the secondary spirals which follow the direction of the generating spiral, will be less PHYLLOTAXY. 85 than the number of the secondary spirals which follow an opposite direction. The same result can be obtained from the succeeding' fractions. On the contrary (fig. 459 e), with the fractions J-, t5j, Yf? and so on, we find that the right-hand radius is occupied by a leaf sooner than the left-hand one, and that in consequence the number of the first leaf on the right-hand radius is less than the number of the first leaf on the left-hand radius. Therefore the number of secondary spirals which can be followed from left to right is less than those from right to left, or, in other words, the most numerous secondary spirals turn in the same direction as the generating spiral, and knowing the direction of the one, we know the direc- tion of the other. The direction of the generating spiral varies not merely in the individuals of a species, but sometimes in the same individual. Thus, in cones from the same speci- men of Maritime Pine, right-to-left secondary spirals will be more frequent in some, and left-to-riglit in others ; but in all cases the relative direction of the generating spiral follows the law just enunciated. The angle of divergence itself is constant only in the fractions , J-, and when these cycles are more numerous, the one is often substituted for the other, which is owing to the distance between them being extremely small, and to the fact that the angles expressed by the fractions t5t, ¥8t, f-^-, -§4, &c., if reduced to degrees and minutes, differ by a few minutes only ; so that the angles of divergence actually oscillate between 137° and 138°. A slight twist of the stem or axis is sufficient to account for so small a variation, and may well occur in rosettes of leaves, in involucral bracts, and in cones, and cast a doubt on the value of the angle of divergence. Thus, in Pines (fig. 459 d), the rectilinear series indicating the suc- cessive cycles may deviate more or less to right or left, so that the secondary spirals, which were the most obvious at the base of the cone, become less so in ascending, and render it difficult to determine such fractions as f, TRT. A change in the shape of the stem will also lead to the substitution of one cycle for another, as in certain Cacti with ribbed or angular stems bearing tufts of prickles, and whose ribs double as they ascend, and offer cycles of a higher number. Lastly, there are exceptional cases which perplex the student of Phyllotaxy ; the above-named fractions are not the only ones which may be observed ; \, i-, T3f, &c., do occur, though very rarely ; but when they do, they preserve among them- selves the same relations as the preceding, i.e. that each successive fraction may be obtained by the addition of the numerators and denominators of the two preceding. We have seen that whorled leaves present a succession of circular groups; but here also, as in alternate leaves, the spiral arrangement is discernible. In a branch of Oleander, for instance, where the leaves are whorled in threes, a relation exists between any three vertically superimposed leaves of successive whorls ; and a line successively passing through their insertions will describe a regular spiral ; and if we examine the relations between the other leaves of these whorls, we shall perceive that the number of whorls represents as many parallel spirals as there are leaves in each of them. 8 6 ORGANOGRAPHY AND GLOSSOLOGY. ESTIVATION. 2 ’Estivation (prcefloratio, cestivatio) is the arrangement of the floral organs in the bud, and is of especial importance in respect of the calyx and corolla. The leaves of each floral whorl may he inserted exactly at the same level (forming a true whorl), or at unequal heights, when they form a depressed spiral, the lowest leaf of which is necessarily the outermost. The true wlioi’l presents two modes of aestivation — the valvate and the contorted. 1. ^Estivation is valvate («?. valvaris ) when the contiguous edges of the parts touch throughout their length, like the two leaves of a door (460 a) ; and it is then nearly always regular. It is induplicative (ce. induplicativa ) when the contiguous parts cohere by a part of their back ; reduplicative (ce. reduplicativa) when by a part of their faces 46 Off. Yalvate 460 6. Yalvate 461. Yalvate 462. Contorted 463. Imbricate aestivation. induplicative jestivation. reduplicative aestivation. activation. aestivation. (fig. 461). 2. ^Estivation is twisted or contorted 1 ( contorta ) when the leaves are so placed that each leaf partially covers one of the two between which it is placed, and is similarly covered by the other, as if each were twisted on its axis (fig. 462) ; in this case the whorl is always regular. The depressed spiral presents two modes of aestivation : the imbricate, properly so called, and the quincunxial. These two are often indifferently termed imbricate. 1. In the true imbricate aestivation (ce. imbricativa, fig. 463) the parts (usually five) successively overlap, from the first, which is wholly exterior, to the last, which is wholly interior, and placed against the first ; they thus complete one turn of a spiral. In quincunxial aestivation (ce. quincuncialis ) two of the five pieces are exterior, two interior, and one intermediate, one side of the latter being covered by one of the outer, and on the other covering one of the inner (fig. 464). This arrangement corresponds to that of leaves expressed by f-. To explain this aestivation, which is nothing but a depressed spiral with two coils, we must consider the axis of the flower as a truncated cone, and draw a spiral line twice round it, from bottom to top; then mark off on this line five equidistant points, so that a sixth point at the top of the cone will be immediately above the first ; it is clear that the interspaces will equal J- the circumference of the cone, and the five spaces between the six points will constitute M1, i. e. twice the circumference; which equals the two turns of the spiral traced on the conical axis of the flower. Now substitute for the five points five sepals or petals which shall be large enough to overlap ; then depress the cone to a plane, and we shall have two exterior leaves (1, 2), a third, at once half Also called convolute by various botanists. — Ed. ESTIVATION. 87 interior and half exterior (3), and two wholly interior (4, 5), which are both nearest to the top of the cone, and the most central. The Rose calyx (fig. 465) confirms this view ; its outer sepals being next the axis of the flower, and consequently most vigorously developed, present small lateral leaflets, and often a terminal true leaflet, thus reducing the sepal to an unequally pinnate leaf like ordinary rose-leaves. As the sepals rise in the quincunx, the growth becomes weaker, the third bears ■ /] small leaflets only on one side, and the upper or interior sepal terminates M |y/// 4G4. Quincunxial 466. Papilionaceous Flower with standard within 468. Cochleate 465. sestivation. aestivation. the wings. aestivation. Rosebud. in a simple filament. The quincunx sestivation may be disturbed by unequal develop- ment of the leaves of the whorl, and this especially occurs in the corolla, owing to the relatively slow or rapid growth of some of the petals. Thus, in the papiliona- ceous corolla (fig. 466), the standard, which represents No. 4 of the quincunx, and ought to be internal, is wholly exterior, because, having developed more rapidly than the other petals, it covers the two wings representing Nos. 1 and 2 ; this sestivation is said to be papilionaceous (ce. vexillaris). In the St. John’s Bread ( Cercis ), the standard retains its normal position, and the quincunx is properly formed (fig. 467). In the Snapdragon (fig. 468) and other personate plants, the second petal is interior instead of being exterior, either because it has developed before the others, or because the latter have grown the most rapidly ; this mode of sestivation is called cocldeate (ce. cochlearis). The calyx has a similar arrangement. Amongst the varieties of imbricate sestivation is that termed convolute 1 (ce. con- volutiva ) : it occurs when the sepals or petals overlap, so that each completely envelops all the others ; as in the calyx of Magnolia, and the corolla of Poppies (fig. 470). Estivation is alternate ( ce . alternativa), when the leaves of the calyx or corolla form two whorls, of which the exterior encloses the interior whilst alternating with it, as in the calyx of the Wallflower, and corolla of Fumitory (fig. 472). [Estivation is straight (ce. recta), or open (ce. aperta), when the parts are so little developed or so distant that they do not meet. — Ed.] SYMMETRY OF THE FLOWER. The term symmetry has been differently applied ; according to De Candolle, it implies non-geometrical regularity in plants and animals ; other botanists distinguish (often obscurely) symmetry from regularity : this we do not admit, but regard 1 The term convolute is often used synonymously with contorted or twisted aestivation. 88 ORGANOGRAPHY AND GLOSSOLOGY. symmetry and regularity 1 as synonymous, and as implying a similarity between the leaves of a floral whorl ; this relation including : — 1, the form-, 2, the number-, 3, the independence ; 4, the relative position of the parts of flowers : we have thus the sym- metry of form, of number, of disjunction, and of position. Symmetry of form is regularity taken in its usual sense ; as when poi’tions of a whorl are alike, or when, being different, the one sort alternates with the other, so as to present a symmetrical whole around a common centre ; this regularity might be termed rayed symmetry (calyx and corolla of Columbine, fig. 31 ; Wallflower, fig. 7 ; and Buttercup) . A whorl that is not thus symmetrical is said to be irregular ; though its two sides (or halves) may resemble each other, thus being analogous to the lonyitudmal2 symmetry of animals, which is opposed to the rayed symmetry of Zoophytes. The corollas of the Heartsease (fig. 170), Cytisus (figs. 253, 254), Tropwolum (fig. 210), are irregular, but longitudinally symmetrical. The whorl is called regular, even though it forms a depressed spiral ; but if the floral axis lengthens sensibly, the rayed symmetry dis- appears, and, to describe the symmetrjg recourse is had to the comparative length of the spiral ; thus the symmetry of the carpels is hemispheric in the Strawberry (fig. 401), conical in the Raspberry (fig. 402), spiked in Adonis (fig. 404). Perfect numerical symmetry occurs when all the whorls consist of the same number of parts, as in Crassula, which has five sepals, petals, stamens and carpels. Disjunctive symmetry occurs when the pieces of each whorl are entirely sepa- rated, and each whorl is entirely free (Columbine, Hellebore). Symmetry of position occurs when the pieces of each whorl alternate with those of the preceding and succeeding ; and the normal position of the whorls (calyx, corolla, androecium, pistil) is undisturbed ( Crassula rubens). Many botanists, regarding regularity as the normal feature in plants, assume it to be the primitive type adopted by Nature ; they there- fore look upon a combination of the above-named symmetries as indicating the normal condition of the flower ; which should thus consist of four whorls, each composed of the same number of leaves, all equal, free, alternating successively, and arranged in the order of calyx, corolla, androecium and pistil. Further, such a primitive type, whether real or imaginary, may be more or less com- pletely and permanently modified by various single or combined causes, of which the prin- cipal are, — inequality of development, cohe- sion or symphysis, multiplication, doublinq, suppression and abortion. This hypothe- sis has contributed largely to the progress of organography, by stimulating investigations into the comparative anatomy of floral organs. To ascertain the amount of symmetry a flower displays, its bud must be cut 469 bis. Linaria. Monstrous flower. 469. Diagram of an ideal perfectly symmetrica! flower. 1 Symmetry in English and American works or equal in number ; regularity , that the parts of a implies that the parts of successive whorls are isometric whorl are equal and similar. — Ed. 2 Better called bUateral.-^Er). SYMMETRY OF THE FLOWER. 89 through horizontally, when all the whorls will appear projected on the same plane ; and the relative positions of the organs thus displayed is termed a diagram (fig. 469). Inequality of development necessarily interferes with symmetry of form (corolla of Heartsease, fig. 170; Oytisus, figs. 253,254; Tropceolum, fig. 210) ; this inequality is frequently caused by the cohesion of parts, as in the bilabiate monosepalous calyx of Lamium (fig. 208), in the bilabiate corolla of Snapdragon (fig. 285), of Linaria (fig. 286), Lamium (figs. 278, 279), in the monadelplious androecium of Mallow (fig. 310), diadelplious of Lotus (fig. 312), didynamous of Snapdragon (fig. 305), tetradynamous of Wall fouler (fig. 306) ; in the ovary of Snapdragon, the pistil of Orchis, &c. — irregularities which are usually accompanied with nectariferous glands ( Heartsease , Wallflower, Oentranthus, Honeysuckle, Snapdragon, Linaria, &c.). In Linaria (fig. 286) the calyx is monosepalous with five unequal divisions, the corolla is monopetalous with two unequal lips, of which the upper represents two petals, and the lower three, of which the centre one is prolonged below into a subulate spur; there are four stamens, of which the two longest are situated between the central and the two lateral petals of the lower lip ; the two others, which are shorter, are opposite the fissures which separate the two lips ; at the base of the upper lip a filament represents the fifth stamen. In certain circumstances all the petals of Linaria are developed like the centre one of the lower lip ; the whorl is then perfectly regular, and presents a corolla with five lobes, and five equal spurs between them (fig. 469 his). At the same time, the filament at the base of the upper lip develops into a stamen like the four others, which latter, usually unequal, become precisely alike, so that the flower is furnished with five symmetrical stamens : to this metamorphosis the name of Peloria has been given, which, according to the theory adverted to, would be regarded as a reversion to the normal state of the plant. Violets are also sometimes regular ; sometimes presenting two opposite spurred petals, or three, or even five such ; when the SA'mmetry of form is esta- blished in the three first whorls. Cohesion or symphysis, whether congenital or the result of growth, destroys the symmetry of disjunction by effecting either the cohesion of the leaves of the same whorl, or the cohesion 1 of one whorl with another ; as in monosepalous calyces, monopetalous corollas, monadelplious, diadelplious and polyadelphous stamens, and compound ovaries ; also in flowers with inferior ovaries {Myrtle, fig. 381 ; Saxifrage, fig. 382), and with monopetalous staminiferous corollas {Belladonna, fig. 294) ; in calycifloral {Peach, fig. 368) and gynandrous flowers {Orchis, fig. 188 ; Aristolochia , fig. 318). Cohesion also masks numerical symmetry, by causing a compound organ to appear simple, as in the monosepalous calyx, the monopetalous corolla, the com- pound ovary, &c. ; and it destroys the symmetry of position, as when the carpels are enclosed in the receptacular tube {Quince, fig. 215), or in causing the androecium to appear above the level of the pistil {Orchis, fig. 188 ; Aristolochia, fig. 318). Multiplication consists in the repetition of the same whorl ; thus, Berheris has 1 In English works, the term cohesion is eon- same whorl; adhesion, to the union of the orgaus of fined to the union of two or more organs of the different whorls. — Ed. 90 ORGANOGRAPHY AND GLOSSOLOGY. tliree whorls of three sepals, two whoi’ls of three petals, and two whorls of three stamens. The Poppy (fig. 470) has two whorls of two petals, and many whorls, each 470. Poppy. Diagram. 471. Columbine. Diagram. 473. Geranium. 472. Fumitory. Flower (mag.), without Diagram. calyx and corolla. composed of two stamens. The Columbine (fig. 471) has ten whorls of five stamens and two whorls of five scales. The Fumitory (fig. 472) has two whorls of two petals, and two whorls of two stamens, of which the outer are normal two-celled stamens, and the inner stamens are divided into four, each one-celled (equal to two complete stamens). Ly thrum has two whorls of six sepals, coherent and adherent. Datura fastuosa has two or three monopetalous corollas, one inside the other. Deduplication or chorisis occurs when two or more organs take the place of one. This affects not only numerical symmetry, but symmetry of position; in which respect it differs from multiplication, when the whorls preserve their relative positions. De- duplication is parallel, when the organ is doubled from without inwards, and when the supernumerary piece is opposite to that from which it proceeds ; it is collateral, when the supernumerary piece occurs by the side of the organ from which it proceeds, maintaining the same relative position on the receptacle ; a parallel deduplication may double or treble the whorl, a collateral deduplication can only increase the number of parts in that whorl, which still continues simple. In the case of parallel dedu- plication, the supernumerary pieces are usually altered, and rather resemble those of the whorl which normally succeeds them, than those of the whorl to which they belong. In Lychnis (figs. 239, 240) and other Caryophyllew, the petals give off a fringed petaloid layer, which coheres with the claw, and is free only where the claw meets the limb; in Seclum (fig. 476) the five petals produce a whorl of five stamens shorter than the five which alternate with them, aud the normal and supernumerary androecia are so close that their bases cohere. In Geranium (fig. 473), the five petals produce by deduplication five stamens shorter than and outside the others, but the five larger bear at their outer bases five nectaries, which re-establish the alternation disturbed by the five supernumerary stamens (fig. 474); in Erodium (fig. 475) the same arrangement exists, except that the extra stamens have no anthers; in Sedum (fig. 476) the stamens opposite to the petals are a deduplication of the latter; in Flax (fig. 477), the supernumerary stamens are reduced to sessile membranous teeth ; in Mignonette (fig. 478), the petals with a fringed top SYMMETRY OF THE FLOWER. 91 bear within a small concave plate, which is a deduplication of the petal. The petals of Ranunculus (fig. 237) bear at their inner base a small scale, parallel to the claw, and forming with it a nectariferous cavity ; the bilabiate petals of Helleborus are formed of two nearly equal plates, and may be regarded as originating by dedupli- cation in a parallel direction. The petaloid laminae of these plants must not be confounded with the different protuberances on the corolla of Comfrey (fig. 269), and other Boraginece, nor with the sort of hairy palate on the lower lip of Snapdragon (tig. 285) and Linaria (fig. 286) ; which are not the result of deduplication, but are derived from the substance of the petal. Deduplications are chiefly confined to the corolla and andrcecium ; they rarely occur in the pistil ; in Sedum (fig. 455) there is externally at the base of each carpel a little green glandular scale, parallel to the carpel, and which might be looked upon as a deduplication of this. Deduplications are not always a proof of superfluous vital action ; they may arise from a misdirection of vegetative force ; in fact, when one whorl is doubled, the succeeding one is either weakened, modified, or suppressed, as in the Primrose, Pim- pernel (fig. 479), and other Primulacew, which have only five stamens, and these opposite to the petals, thus not forming a normally whorled andrcecium, but being- referable to a parallel deduplication of the petals ; they thus replace the normal andrcecium, which however sometimes appears, not as stamens, but as scales, alternating with the petals ( Samolus , fig. 480). In the Vine 4iS. Mignonette. Corolla (mag.). 479. Pimpernel. Stamen and petal (mag.). 4S0. Samolus. Portion of corolla and androecinm (mag.). 482. Rocket. Andrcecium. (fig. 481), the five normal stamens are replaced by five nectaries, but fertilization is secured by five stamens opposite to the petals. Collateral deduplication is less frequent than parallel ; in the RocJcet (fig. 482) and 92 ORGANOGRAPHY AND GLOSSOLOGY. other Cruciferce, the four stamens arranged in pairs alongside the pistil represent two doubled ; the filaments of each pair are indeed often connected half-way up, or throughout their length. In the Orange (fig. 483), the androecium consists of a single whorl of thirty stamens, whose filaments cohere in bundles of four, five, or six; in St. John’s Wort (fig. 484), the stamens form three or five bundles, of which each may be considered as a doubled stamen; and so in Castor-oil (fig. 315), the stamens of which form branched bundles. Each filament of the Laurel (fig. 485) bears on each side of its base a shortly stipitate gland, which firmly coheres to it, and is sometimes developed into a true stamen. This shows that the stamen of the Laurel with its two glands represents a stamen multiplied into three, of which the two lateral are rudimentary. In many Garlics (fig. 320) the filaments are dilated, and terminated by three teeth, of which the central only bears an anther ; in Pancratium this dilatation is enormous ; the lateral lobes of each filament cohere with the neighbouring filaments, and form with them a fringed tube ; in Narcissus (fig. 486) this tube is still more remarkable, and assignable to the same origin. Many plants present the case both of multiplication and deduplication ; the flower of Butomus (fig. 487) lias three sepals, three petals, six stamens in pairs opposite to the sepals, three other stamens within the six preceding, also opposite the jietals, and six carpels in two series : here we have a multiplication of the androecium and pistil, and besides this a collateral deduplication of the first whorl of the androecium. When the stamens are twice and thrice as many as the petals, and by their extreme closeness seem to form but a single whorl, it may be difficult to decide whether this is a case of collateral deduplication of the androecium, or of multiplication, or of a dedupli- cation of the corolla added to the normal androecium. This difficulty is increased when the stamens all cohere. If the stamens are placed exactly on a level, they may be formed by a collateral deduplication ( Orange , fig. 483) ; if some are a little within or without the others, which is easily distinguishable, in spite of coherence, then it is a case either of multiplication or of parallel deduplication. It is a case of multiplication when the outer stamens alternate with the petals ( Berberis ), but of parallel deduplication when they are opposite to the petals ( Geranium , fig. 473). 483. Orange. 483. Laurel. Portion of androecium. Stamen (mag.). 487. Butomus. Diagram. 4SG. Narcissus psendo-Narcissus. Perianth laid open. SYMMETRY OF THE FLOWER. 93 Arrests and suppressions are due to failures of development, and affect more than all other causes the symmetry of the flower. Arrest is the condition of an organ the growth of which has stopped, so that it is reduced to a sort of stump, sometimes glandular ; suppression implies that an organ has never even been developed. The outer whorls are more seldom arrested or suppressed than the andrcecium and espe- cially the pistil, which occupies but a narrow area of the receptacle. The suppression or arrest of one or more pieces of a whorl affects the symmetry of number, position and form. For example, Berberis, whose calyx, corolla and andrcecium are in threes or multiples of three, has for pistil a single carpel ; the Pink (fig. 488), whose other whorls are quinary, has but two carpels ; the Heartsease three (fig. 489) ; in the Bitter Vetch (fig. 490) and other Papilion- acew, the two first whorls are quinary, the third decennary, 488. Pink. Diagram. 492. Scrophularia. Diagram. 491. Snapdragon. Diagram. whilst the pistil is mono-carpellary ; it is the same with the pistil of the Plum and Peach. The Snapdragon (fig. 491), of which the calyx and corolla are quinary, has (owing to arrest) four stamens, and two carpels due to suppression. In Scrophularia, with the same arrangement, the fifth stamen is represented by a petaloid scale (fig. 492). The Periwinkle and other Apocynece, as well as many monopetalous families, have five sepals, five petals, five stamens, and two carpels ; Polygala (fig. 493) has five sepals, three petals (sometimes five, alternating with the sepals), eight half anthers (equivalent to four stamens), and two carpels. Umbel - liferce (fig. 494) have five sepals, five petals, five stamens and two carpels. The Cornflower, Dandelion, Chrysanthemum and other Composites have quinary corollas and androecia and a single carpel ; in most, the calyx degenerates into a pappus, though in some ( Asteriscus , Hymenoxys ) it presents five scales. In most Cucurbit acern (Melon, Pumpkin, Cucumber ) the calyx and corolla are quinary and the stamens are reduced to two and a half. In apetalous, monoecious, and dioecious flowers, an entire whorl is suppressed or arrested ( Lychnis , Sagina, Chenopodium, fig. 189) ; some- times several whorls are absent, as in the Nettle and Mulberry (fig. 495), which present only a calyx with an andrcecium, or a pistil. Sometimes several whorls are suppressed, together with one or more pieces of the remaining whorl ; the male flower 494. Coriander. Diagram. 495. Mulberry.- J flower (mag.). 94 ORGANOGRAPHY AND GLOSSOLOGY. of Euphorbia (fig. 333) consists of one whorl, reduced to one stamen ; and the female flower (fig. 406) of one whorl of three carpels ; the flowers of Arum (figs. 196, 197, 198) consist of a solitary stamen or carpel. Seeds, like the floral whorls, are subject to suppression and arrest; in Geranium (fig. 474) the five carpels are two-ovuled, and but single-seeded ; the Oah (fig. 400) has three carpels forming three two-ovuled cells ; the septa become speedily absorbed through the rapid growth of one of the ovules, and the ripe fruit is one-celled and one-seeded. The Horse-chestnut presents a similar arrest. In the Cornflower and other Composite, in Wheat and other Gramineoe, the ovule is solitary from the first ; at least, a second has never been discovered ; thus offering a case of suppres- sion and not arrest. The causes which disguise or disturb symmetry in any one flower are not always isolated. In Larhspur we have unequal develop- ment and symphysis in the calyx and corolla, multiplication in the androecium, and suppression in the pistil ; in Asclepias (fig. 496) symphysis in all its whorls, multiplication in its corolla, dedu- plication in the second whorl of the corolla, and suppression in the pistil. Mignonette is an example of unequal development in its calyx, corolla and androecium ; of symphysis in its pistil, of parallel deduplication in its corolla, of collateral deduplication in its androecium, and of suppression in its pistil. 496. Asclepias. Flower (mag.). THE FRUIT. The fruit ( fructus ) is the fertilized and ripe pistil, that is, a pistil enclosing- seeds capable of reproducing the plant. It may be accompanied by accessory organs, which are considered as forming an integral part of it, and to which we shall return. The fruit is apocarpous — 1, when its carpels are separate from each other ( Columbine , fig. 497; Ranunculus, fig. 524; Bramble, fig. 521 ; Rose, fig. 525), when each carpel is considered to be a fruit ; 2, when the pistil is formed of a single carpel {Pea, Bladder Senna, fig. 498 ; Apricot, fig. 499 ; Wheat). It is syncar- pous, when its carpels are consolidated into a single body {Tulip, fig. 389 ; Iris, Campanula, fig. 390 ; Poppy, fig. 388 ; Heartsease, fig. 500). 497. Columbine. Fruit. 500. Heartsease. Ilipe pistil. 498. Bladder Senna. Fruit. 499. Apricot. Open flower. According as each free carpel, or each, cell of a syncarpous fruit, or each THE FRUIT. 95 unilocular composite ovary contains one, few, or many seeds, tliis carpel, cell, or ovary is said to be monospermous ( monosperma ), oligospermous ( oligosperma ), or many-seeded ( polysperma ). The ripe ovary is called a pericarp ( pericarpium ) ; we have already described the three layers of which it is composed (figs. 15, 16), epicarp, endocarp, and mesocarp or sar cocarp. Changes caused by Maturation. — In ripening, the fruit undergoes changes, some of which have been already mentioned : it may be dry, and then, according to its consistency, it is said to be membranous, corky, coriaceous, woody, bony ; the latter quality is found in the Filbert (fig. 233) ; sometimes it becomes fleshy through the abundant pulp of the seed;1 in Belladonna (fig. 567) the mesocarp is succulent; in the Orange (fig. 568) the pulp consists of long 501. Gooseberry. Fruit cut vertically. 503. Cneorum. Fruit cut vertically (mag.). 504. Tribulus. Fruit cut vertically (mag.). 502. Cassia. Portion of open fruit. 505. Radish. Flower cut vertically. spindle-shaped cells, fixed to the endocarp by one of their extremities, and free at the other; in the Tomato it is the placenta, in the Gooseberry (fig. 501) and the Pomegranate it is the testa itself of the seed which is pulpy. In fruits with a succulent mesocarp, as Plum, Cherry, Peach, Apricot, Walnut, &c., the endocarp thickens at the expense of a portion of the mesocarp (figs. 16, 520), becomes bony, and forms the stone (putamen) . The septa sometimes disappear in the pericarp ; as in Lychnis (fig. 398) and other Caryophyllacece, where the rapid growth of the walls of the ovary breaks and effaces them; in the Oak (fig. 400), where one ovule stifles the other five, and destroys the three septa; in the Ash (fig. 561), where one of the two cells contains a seed, while the other is reduced to an almost imperceptible cavity by the destruction of the septum. Sometimes trans- verse septa are developed in the ripening ovary ; these are horizontal expansions of the endocarp and mesocarp, which sometimes become woody ( Cassia , fig. 502). In Cneorum (fig. 503) and Tribulus (fig. 504), the endocarp and mesocarp ai'e gradually intruded from the inner wall of the ovary, so as to form oblique septa, which at maturity divide the cavity into small superimposed cells. The membranous transverse septa of the cells of the Radish pod (fig. 505), Raplianistrum, and some other Cruci- feroe, are longitudinal septa which the growth of the seeds has driven to right and left by the resistance of the endocarp ; in this case, the fruit dehisces transversely, each segment containing one seed. Suture. — The ventral suture ( sutura ventralis ) is the line indicated by the 1 Tile pulp rarely contributes to the formation by tempting birds, &c., and it is often an aid to the of the seed ; it aids in the dispersion of fruits germination of the seed. — Ed. 96 ORGANOGRAPHY AND GLOSSOLOGY. cohering edges of a carpellary leaf, and which faces the axis of the flower ; what is (somewhat improperly) called the dorsal suture ( s . dorsalis ) is nothing but the median nerve of the carpel, which consequently faces the periphery of the flower. This nerve may he masked by the parenchyma developed from the carpel, as in the Peach ; it is usually indicated either by a rib (Columbine) or furrow ( Astragalus ). The ventral suture may also be indicated by a rib (Pea) or furrow (Peach). In a many- celled ovary, the ventral sutures, occupying the axis of the flower, cannot be seen externally, and each cell is indicated by a dorsal line or rib ; besides which, we generally see, on the walls of the compound ovary and between its dorsal furrows, other sutures, named parietal (suturce parietales), which indicate the union of two septa, or of two parietal placentas (Mallow, fig. 225). In inferior ovaries, those are not sutures which we perceive on the walls of the fruit, but fibro-vascular bundles, which belong to the calyx-tube according to some, to the receptacular tube according to others (Currant). In this case, the calyx-limb often crowns the fruit, in the form of teetlL (Fedia, fig. 216), or bristles ( Scabious , fig. 229), or a pappus (Dandelion, fig. 222), or a crown (Pomegranate, Medlar). Accessory Organs. — The style sometimes remains upon the ovary, and grows with the pericarp as it matures ; it forms a flattened beak in the Radish and Rochet. (fig. 506), a feathery tail in Pulsatilla and Clematis. The receptacle, which in some cases adheres to the ovary, necessarily forms a part of the fruit ; such is the recep- tacular tube which encloses the carpels in Apples, Pears, Quinces, Medlars, White- beam, Azarole, Haivs, &c. ; such is also the receptacle of the Strawberry (fig. 507), which, though almost dry at first, gradually enlarges, becomes fleshy, and encloses the ovaries in its crimson parenchyma; it is not then the pistil alone, but the enlarged receptacle which is prized in the strawberry, and which is usually regarded as the fruit ; the carpels of the strawberry are insipid, and crack under the teeth, and the little black styles appear as dry deciduous threads. In the Fig (fig. 158), a fleshy and persists on the calyx ; in the Marvel of Peru the base of the petaloid perianth envelops the ovary, and resembles one of the integuments of the seed; in the Winter Cherry (fig. 508) the whole calyx persists, enlarging enormously, and enclosing the ovary in an inflated coloured bladder. In the Rose (fig. 509), the receptacle encloses innumerable minute flowers, the lower female, the upper male. N Exuviae. — The name v; A A exuviae (induvice) has 506. Rocket. Fruit. 544) the corolla withers of half the cal>'x- THE FRUIT. 07 calyx-limb dries and decays, but the receptacular tube persists and becomes fleshy. In the ripe Mulberry (fig. 571), the female flowers of which form a dense spike, the four sepals are succulent, and enclose the pistil; they may thus themselves be regarded as belonging to the fruit. Involucres, which we have described in the paragraph on bracts, usually persist around the fruit and grow with it ; such is the case with the involucres of Compositce, the cups of the Acorn (fig. 232), of the Nut (fig. 233), and of the Chestnut (fig. 234). Dehiscence. — Dehiscence is the act by which the ripe pericarp opens to let the seeds escape. Fruits which thus burst spontaneously are called dehiscent { dehiscens : Tulip, Iris, fig. 531) ; the term indehiscent { indehiscens ) is applied to — 1, fleshy fruits which do not open, but decay, and thus free the seeds {Apple, figs. 448, 449 ; Peach, fig. 519 ; Melon, Pumpkin ) ; 2, dry fruits, whose pericarp is pierced by the embryo in germination {Wheat, Buckwheat, Oat, fig. 526 ; Anemone, fig. 523). Valves {valvae, valvulce ) are the pieces into which the pistil separates when ripe, to allow the seeds to escape ; according to the number of these, the fruit is said to be univalved, bivalved, &c. {univalvis, bivalvis, &c.) ; sometimes the separation is incomplete, the valves only opening to a half or a quarter of their length, or at the top only. Apocarpous fruits dehisce by the ventral suture {Columbine, fig. 497 ; Larkspur, fig. 512 ; Calthci, fig. 511), or by the dorsal nerve {Magnolia) , or by both at once {Pea, fig. 516, and other Leguminosai) ; in the latter case, there are two valves to one carpel. The dehiscence of plwrilocular syncarpous fruits is septicidal {d. septicida) when the septa split into two parallel plates, and the united carpels separate {St. John’s Wort, fig. 527 ; Colchicum, fig. 529 ; Mullein , Scrophularia, fig. 528) ; each valve then represents a carpel. The placentas may fall away with the valves, or form a solid central column {Salicaria, fig. 530). In all cases, the edges of the valves are said to be infiexed. The dehiscence of plurilocidar syncarpous fruits is loculicidal {d. locu- licida) when it takes place by the dorsal suture ; this results from the septa being more firmly united than the median fibro-vascular bundles of the carpels; each valve then represents the halves of two carpels, and the valves are described as sep- tiferous in the middle {v. medio-septiferce). Sometimes the placentas are continued along the septa {Lily, Iris, fig. 531), at others they remain consolidated into a central column ; -sometimes, again, the placentas may retain a portion or the whole of each septum, and the central column then presents as many wings or plates as there were septa in the ovary before its dehiscence {Rhododendron, Datura, fig. 532) ; this variety of loculicidal dehiscence is called septifragal. The same fruit may be both septicidal and loculicidal ; thus, in Foxglove, which is two-carpellary, the septa first separate, then the dorsal nerve of each carpel splits, and each of the four resulting- valves represents half a carpel. Syncarpous fruits with parietal placentas usually dehisce by placental sutures, when each valve represents a carpel, and has placentiferous margins {val. marginibus placentiferce, Gentian, fig. 533), — or by the dorsal sutures, when each valve represents the halves of two contiguous carpels, and is placentiferous in the_ middle {v. medio- placentiferce, Heartsease, fig. 534; Willow, fig. 535), — or by the separation of the valves, H 98 ORGANOGRAPHY AND GLOSSOLOGY. which leave the placentas in their places {Wallflower, fig. 547 ; jOhclidonium, fig. 546). In some syncarpous fruits, the dehiscence is by valvules or teeth, variously placed, which, by diverging or ascending, form openings for the seeds to escape {Primrose, Lychnis, fig. 542 ; Snapdragon, fig. 545 ; Harebell, fig. 544; Poppy, fig. 543). Dehiscence is transverse {d. transversalis ) when a compound ovary is halved transversely {Pim- pernel, fig. 537 ; Henbane, fig. 539 ; Purslane, fig. 538 ; Plantain ) ; — as also when apocarpous fruits break up transversely into one- seeded segments {Coronilla, Sainfoin, fig. 518). Dehiscence is irre- gular {d. ruptilis ) in fruits with resisting septa and dorsal sutures, but uniformly thin walls ; thus, the pericarp of some Linarias (fig. 510) splits into longitudinal ribbons ; the fruit of Momordica, Wild Cucumber, &c., rupture thus elastically. Classification of Fruits. — Many authors have attempted this; but their efforts, though resulting in many valuable scientific observations, have sometimes given rise to a very obscure botanical terminology. Linnaeus admitted five sorts of fruit ; Gaertner, thirteen ; Mirbel, twenty-one ; Desvaux, forty-five ; Richard, twenty-four ; Dumortier, thirty-three ; Lindley, thirty-six. The following classification, adapted from these several authors, appears to us the simplest and easiest of application ; it includes most of the modifications of form observable in the fruits of pluenogamous plants. Apocarpous Fruits. — 1. The follicle ( folliculus ) is dry, dehiscent, many-seeded, 510. Linaria. Fruit. 512. 515. Trollius. 517. Lucerne. Larkspur. Fruit. Fruit. 516. Pea. Fruit. and opens by its ventral suture {Caltha, fig. 511 ; Larkspur, fig. 512 ; Peony, fig. 513), or very rarely by the dorsal only {Magnolia). Follicles are rarely solitary, but almost THE FRUIT. 99 always form a whorl ( Columbine , fig. 497; Peony, fig. 513; Caltha, fig. 511), or head ( Trollius , fig. 515). — 2. The legume (legumen) is a follicle opening into two valves by 520. Cherry. Fruit cut vertically. 519. Peach. Fruit cut vertically. 523. Wood Anemone. Whole achene and acliene cut vertically. 526. Oat. Fruit (mag.), o, ovary ; T, testa ; r, G, c, embryo ; A, albumen. its dorsal and ventral sutures (Pea, fig. 516). Some Leguminosce have spirally twisted fruits ( Lucerne , fig. 517) ; of others the fruit is indeliiscent and one-seeded, hence a true achene ( Trefoil ) ; of others it is a lomentum, i.e. the legume is contracted at intervals into many cells by transverse septa; when ripe, the fruit separates through the septa of the cells into one-seeded joints ( Coronilla , Sainfoin, fig. 518) ; other legumes are vertically more or less perfectly two-celled, by the in- flexion of the dorsal ( Astragalus , fig. 391), or ventral suture ( Oxytropis ). — 3. The drupe ( drupa ) is indeliiscent, usually one-seeded, with a fleshy mesocarp, and stony or bony endocarp (Peach, fig. 519; Cherry, fig. 520; Apricot, Plum, Almond, Walnut). Acini are the small drupes forming the fruit of the Raspberry and Bramble, &c. (fig. 521). — 4. The simple berry only differs from the compound berry by originating in a solitary carpel ( Berberis , Arum, fig. 522). — 5. The achene (achenium) is dry, indeliiscent, with a single free seed (not adhering to the pericarp) ; it is solitary in the Cornflower (fig. 523 bis ) and Dandelion ; agglomerated in the Ranunculus (fig-. 524), Anemone (fig. 523), Rose, (fig. 525), and Strawberry (fig. 401). The utricle ( utriculus ) is an achene with a very thin and almost membranous pericarp (Scabious, Amaranth, Statice). — 6. The caryopsis ( caryopsis ) is dry, indeliiscent, with a single seed adhering to the pericarp (Wheat, Maize, Oat, fig. 526). Syncarpous Fruits. — 7. The capside ( capsula ) is dry, one- or m any-celled, and dehiscent; it is plurilocular and septicidal in St. John’s Wort (fig. 527), Scropliularia (fig. 528), Mullein, Colchicum (fig. 529), Salicaria (fig. 530) ; loculicidal in Lilac, Lily, Iris (fig. 531) ; septifragal in Datura (fig. 532), septicidal and loculicidal in Digitalis and Linum catharticum. The valves of the unilocular capsule are placentiferous at the edges in Gentian (fig. 533) ; placentiferous at the middle in Heartsease (fig. 534) and Willow (fig. 535). The capsule of Orchis (fig. 536) opens into three valves 52.'!. Rose. Fruit cut vertically. 100 ORGANOGRAPHY AND GLOSSOLOGY. placentiferous at the middle, and the median nerves of the three carpels, united by their bases and tops, and crowned by the dry floral envelopes, persist after the valves fall away. In the circumsciss capsule ( pyxiclium , c. circumscissa) , the dehiscence is transverse ( Plantain , Pimpernel, fig. 537 ; Purs- 527. St, John’s Wort. 528. Scrophnlaria. Fruit. 531. Iris. Fruit. 536. Orchis. Fruit. lane, fig. 538 ; Henbane, fig. 539). In Mignonette (fig. 540), the capsule opens by the separation of the three sessile connivent stigmatiferous lobes, without dividing into 532. Datura. Fruit. teeth or valves, and leaves an opening between them. In the Primrose, the capsule is five-valved at the top, by the fission of the dorsal nerves of the carpels. In the Pink (fig. 541), both the dorsal nerves and placental sutures split. In Lychnis (fig. 542), the capsule is similarly incompletely ten-valved. In the Poppy (fig. 543), the capsule opens by small tooth-like valves between the septa, below the disk formed by the style and stigmatic rays. In the Harebell (fig. 544), the capsule opens by five small valves at the base of the receptacular tube ; these openings are formed by the lower portions of the septa separating from the central axis, and carrying up with them a portion of the pericarp, in the shape of a little open door. In other species of Campanula the opening occurs at the upper part of the receptacular tube, where the edge of the septum is thickened and forms THE FRUIT. 101 a border with the concavity outside ; the bottom of this border rolls over the concavity, and ruptures the wall of the ovary, forming between each sepal a little round protuberance, and the seeds escape by pores which are on a level with their placentas. In the Snapdragon (fig. 545), 540. Mignonette. Fruit. 542. Lychnis. 545. Snapdragon. Fruit. Fruit. 541. Pink. Fruit. the upper carpel, that next the axis, opens near the persistent style by small free valves ; the lower carpel, which is gibbous below, opens by two similar collateral valves, also near the style. The entire fruit, when seen in front, resembles a monkey’s face, the style being the nose, the hole of the upper carpel the mouth, the two other holes the eyes, and the persistent catyx a head-dress. The siliqua ( siliqua ) is a capsule with two carpels ; it is properly one-celled ( Chelidonium, , fig. 546), but usually 549. Oochlearia. 550. Tlilaspi. Fruit. Fruit (mag.). 551. Bunias. Fruit. 552. Bunias. Fruit, open. two-celled by a spurious membranous septum, and opens from bottom to top by two valves, the seed-bearing parietal placentas persisting ( Wallflower , fig. 547). The silicule ( silicula ) is a siliqua of which the length does not much exceed the breadth ( Whitlow-grass , fig. 548; Coclilearia, fig. 549; Tlilaspi, fig. 550). In some cases the siliqua is lomentaceous, separating transversely into one-seeded joints (Radish). In the Bunias (figs. 551, 552), each of the two cells of the silicule is two- seeded and two-celled, by a longitudinal septum. In Crarnbe (fier. 553), the silicule is compressed, and ' ° ' 7 1 - 7 ooo. uramoe. 004. myagrum. originally consists of two unequal one-seeded cells, but Fruit, open. Fruit, open, whilst the seed of the upper cell becomes developed, that of the lower cell is arrested, its funicle being strangled in the septum ; and the result is a one-seeded 102 ORGANOGRAPHY AND GLOSSOLOGY. indehiscent fruit. In Myagrum perfoliatum (fig. 554), the silicule contains only one seed, which occupies its lower half, and pushes up the septum ; the two upper cells are empty. In plurilocular capsules, the name cocci {cocci) has been given to one- or two-seeded carpels, which separate (often elastically), and carry the seeds with them, but 555. Geranium. Fruit (mug.). 556. Fraxinella. Fruit. 557. y&thtisa. Fruit. 559. Cerinthe. Fruit. usually leave the placentas attached to a central column ( Cneorum , Fraxinella, Euphorbia , Geranium , Mallow). In Euphorbia this central column consists of the placentas, and three double plates, which are portions of the septa, of which the other portions were carried away by the dehiscence of the valves. In Geranium (fig. 555) the five carpels separate elastically upwards, and roll over upon themselves ; the central column consists of the placentas and the edges of the carpellary leaves. In Mallows, the septa of the ten to fifteen carpels split, but the carpels do not wholly separate from the column ; a considerable portion of the septa adhering to it. In Fraxinella (fig. 556) the five carpels separate completely, and leave no column. The fruit of Angelica, JEthusa (fig. 557), and other TJmbelliferce is a capsule with two one-seeded cells, divided by a narrow septum ; its two carpels separate like cocci, and remain suspended at the top to the filiform axis or prolongation of the receptacle. Most botanists consider this fruit to be composed of two achenes ; but aclienes are apocarpous fruits, and this fruit, being syncarpous, constitutes a true two-celled septicidal capsule, of which the only opening to the carpels is a narrow cleft, pre- viously occupied by a filiform axis. The fruit of the Bugle (fig. 558) is composed of four one-seeded lobes, which separate when ripe, often called achenes and nucules ; but the fruit of Borraginece and Labiatce is now considered to be formed of two carpels, each distinctly two-lobed, and containing two seeds ; this is obvious in Cerinthe (fig. 559). It has been demonstrated that in the very young buds of the THE FBTJTT. 103 Sage and other Labiatce, there really are only two carpellary leaves, opposite to the two lips of the corolla. Such fruits are not collections of achenes, but syncarpous, the carpels being united below by the dilated style-base (tig. 409) ; it is a true capsule of two carpels, each of which becomes two-celled, and hence it simulates four distinct carpels. The samara ( samara ) is a dry, one- to two-seeded fruit, of which the pericarp forms a membranous wing above or round the cell {Maple, Ash, Elm, &c.) ; these, which are often placed among apocarpous fruits, are evidently composed of two united carpels. In the Maple (fig. 560), the two cells are distinct, and the fruit separates, as in Umhelliferae, into two cocci hanging at the top of a filiform axis ; it is therefore a true septicidal capsule, the only opening of the carpels being the narrow slit previously occupied by the axis. In the Ash (fig. ^61), the septum is perpendicular to the faces of the ovary, and consequently the two sharp edges answer to the backs of the carpel ; after flowering, all the ovules but one are arrested ; the septum is pushed back, one of the cells almost completely disappears, and the other is filled with the seed. The fruit of the Elm (fig. 562) is similar ; one of the cells is one-ovuled, the other is empty from the first. The nucule ( nucula ) is an indeliiscent capsule, with a bony or coriaceous pericarp, plurilocular when young, but one-celled and one-seeded by arrest {Oak, fig. 232 ; Filbert, fig. 233 ; Hornbeam, Beech, Chestnut, fig. 563 ; Lime, fig. 564). To the same category belong also the fruits of Feclia (figs. 565, 566) and other Valerianece, sometimes for convenience, but not accurately, called achenes. — 8. The berry ( bacca ) (whether compound or simple) is succulent, indehiscent, and has no stone ; it differs from the capsule only in its fleshy consistence, which frequently induces the suppression of the septa, and arrest of some of the seeds {Vine). There are some fruits 562. Elm. Fruit. 563. Chestnut. Fruit. 564. Lime. Fruit. 5G5. Fedia. Fruit cut transversely (mag.). 567. Belladonna. F ruit. which may equally be termed a berry or a capsule {Capsicum, Winter Cherry ). Among species of the same genus, some are provided with a capsule, others with a berry {Galium, Asperula, Campion, Hypericum). The Privet, Nightshade, Belladonna (fig. 567), Vine, have a two-celled berry; Asparagus and Lily of the Valley, a three-celled berry ; Herb Paris, a four- to five-celled berry. Among plants with an inferior ovary, the berry of Sambucus is tliree-celled, that of the Myrtle four- to five-celled ; Ivy, five-celled ; Coffee, two-celled ; Gooseberry , one-celled, with parietal placentas (fig. 501). The hesperidium {hesperidium) is a plurilocular berry, with an aromatic glandular epicarp, a dry and spongy mesocarp, an endocarp covered with 104 ORGANOGRAPHY AND GLOSSOLOGY. small watery cells which spring from the walls of the cavities, and extend to the seeds ( Orange , fig. 568). The gourd ( pepo ) is a berry composed of three to five (rarely one) carpels, united to the receptaeular tube, and forming a single cell willi very fleshy seed-bearing parietal placentas {Melon, Pumpkin, Sechium,, Briony). The pome {pomum, melonula, figs. 569, 570), is a berry composed of many (usually five) cartilaginous carpels (e), forming five cells, and united to the receptaeular tube (t) {Apple, 568. Orange. Fruit cut transversely. 570. Apple. Fruit cut vertically. 569. Apple. Fruit cut transversely. 571. Mulberry. Fruit. Pear, Quince). — 9. The compound drupe { nuculanium ) is fleshy, and encloses many stones, which are sometimes connate {Dogwood), sometimes free { Medlar , Beam, Sapotilla) . Aggregate fruits is the name given to fruits that result from the union of several flowers ; these component fruits are included amongst the above-described varieties. In the Honeysuckle, the fruit is formed of two connate, but originally free berries. In the Mulberry (fig. 571), the true fruit consists of a spike or head of small drupes, each enveloped in a succulent calyx. The Fig (fig. 158) is" a pyriform body, fleshy, hollow, bracteate at the base, the mouth furnished with little scales, and serving as a common receptacle to the flowers enclosed in its cavity, the males above, the females below. In the Pine-apple (fig. 572), the flowers are spiked and pressed round an axis 572. Pine-apple. 573. Pine. Carpel (mag.) bearing two seeds. Oh, chalaza M, micropyle. 574. Pine. Fruit. 575. Cypress. Fruit, terminating in a tuft of leaves ; the ovaries form so many berries, but the calyces, the bracts, and the axis itself become fleshy. The Pine-cone {conus, strobilus) is an aggregate fruit, which has nothing in common with the preceding ; the carpels, represented by scales (fig. 573), have neither style nor stigma, and do not SEED. 105 close to shelter the seeds, but protect them by closely overlapping each other until ripe. They are sometimes woody, when they form either a conical spike (Pine, fig. 574), or a globular head ( Cypress , fig. 575) ; when fleshy and connate, they simulate a drupe (Juniper, fig. 576). SEED. 577. Pea seed (mag.), deprived of half its integument and one of its cotyledons. The seed (semen) of phaenogams is the ovule when fertilized, ripe, and ready for germination; it contains the embryo (embryo, plantula, corculum), which is destined to reproduce the mother-plant. Let us recapitulate the structure of the embryo in the Pea (fig. 577). It is composed of a caulicle (cauliculus, t), a radide (radicula, r), two cotyledons (cotyledones, c), and a plumule ( gemmula , plumula) ; it is enveloped by a double integument, of which the outer (i), or testa (testa), is attached to the liilum (hilus, umbilicus) by the funicle (funiculus, f), which rises from the placenta (placenta, p) ; and the inner (e), or endopleure ,' (endopleura) provides a passage for the nourishing juices by the chalaza (chalaza, h), which communicates with the hilum by means of a cord (a), the raphe (raphe). Near the hilum is a small opening (m), the micropyle (micropyle), by which the ovule is fertilized by the pollen. As a general rule, the radicular end of the embryo answers to the micropyle, and the cotyledonary end to the chalaza ; the exceptions to this rule, which are rare, and do not invalidate it, will be specified. Relative Positions of Seed and Embryo. — It is important to observe that, in the early condition of the ovule, the hilum and chalaza are united; consequently the raphe does not exist, and the micropyle occupies the opposite, or free end of the ovule; also that 1, the base of the fruit (ovary2), is the point by which this is attached to the receptacle, and its top is the point from which the style springs ; 2, the base of the seed is the point by which it is attached to the funicle or placenta, and which is indicated by the hilum ; the top of the seed is the extremity of an imaginary straight or curved line drawn through the axis of the seed. The axis of the ovary is defined in the same manner. The embryo has also its axis ; its base is its radicular, and its top its 578. Nettle. cotyledonary extremity. ^^u^^i^'o^^theparge The top of the seed is obvious ^yPaUs^ne°sTtA4lCTst ;athe whenever the hilum occupies either to^tiacentof pl^ the extremity of the long axis of the seed, ov^.nnd raddle, nTacSl as is usually the case (Nettle, fig. the top of the ovary, 579. Achene cut vertically (mag.), ov, ovary ; Gr, seed. 578 ; Sage, fig. 579 ; Chicory, 580) ; but sometimes the hilum is placed at the middle of the long axis of the seed 1 Sometimes called tegmen. — Ed. 2 Throughout this section the authors speak of the seed in relation to the ovary, where we should say carpel or fruit. — Ed. 106 ORGANOGRAPHY AND GLOSSOLOGY. ( Lychnis , fig. 587) ; it is then ventral (li. ventralis), and when the seed is flattened convex on one side and concave on the other ( Lychnis , Stellaria). In these latter cases it is difficult and superfluous to determine the top of the seed, but it is easy and 581. Sedmn. Flower cut vertically (mag.). 582. Valerian. Flower cut vertically (mag,). important to distinguish the ventral face, i.e. that facing the placenta, and the dorsal or opposite face. The seed is erect ( s . erectum ) when it is fixed to the bottom of the cavity of the fruit (Nettle, fig. 578 ; Sage, fig. 579). It is ascending ( s . ascendens), when, being fixed to a central or parietal placenta, its top is turned towards that of the fruit (Sedum, fig. 581 ; Apple, fig. 570). The seed is reversed (s. inversum) when its base corresponds to the top of the fruit, whether the placenta is immediately under the style ( Valerian , fig. 582), or at the bottom of the ovary, in which case the seed is suspended from an ascending basal funicle (Plumbago, fig. 583). The seed is suspended, pendent (s. pendulum), when it is fixed to a central or parietal placenta, with its top turned towards the base of the fruit (Apricot, Almond, fig. 583 bis). The distinction between reversed and pendulous seeds is often very slight, and these terms are often used indifferently to describe a seed of which the free end faces the bottom of the fruit. The seed is horizontal when fixed to a central or parietal placenta, with its axis at right angles to that of the fruit (Aristolochia, Lily, fig. 584). In certain two-ovuled ovaries one ovule may be pendulous and the other ascending (Horses chestnut, fig. 585) ; in others with many seeds or ovules, some are ascending, others pendulous, and those in the centre horizontal (Colum- bine). All the terms indicating the position of the seed are equally applicable to that of the ovule. The radicle is superior (r. supera) when it points to the top of the ovary ; it is inferior (r. inf era) when it faces the bottom ; thus corresponding to the erect and 683 bis. Almond. 584, Lily. Ovary out transversely (mag.),. 6S5. Horse-chestnut. Pistil cut vertically (mag.). SEED. 107 ascending seeds. Thus, the Nettle (fig. 578) has an erect seed and a superior radicle ; the axis of the seed is straight, the radicular end being furthest from the cotyledonary, which answers to the hilum. In the Sage (fig. 579) and Chicory (fig. 580), the seed is erect, with an inferior radicle ; here the embryo seems to have twisted half round upon itself ; the cotyledonary end, which ought to answer to the hilum, being at the opposite extremity, and the radicle nearly occupying its place ; this movement has taken place in the cavity of the ovule before fertilization, as we shall presently explain ; the result is a long raphe, which runs along one side of the seed, and the chalaza is consequently diametrically opposite to the hilum. The radicle is centri- petal (r. centripeta) when it faces the central axis of the fruit {Lily, fig. 584) ; centri- fugal (r. centrifuga), when it faces the circumference ( Mignonette , fig. 384). The 586. Wallflower. 587. Lychnis. 588. Datura. 589. Marvel of Peru. 591. Plantain. 592. Plantain. Seed cut Seed cut Seed cut Fruit Ventral surface Seed cut vertically (mag.). vertically (mag.). vertically (mag.). cut vertically. of seed (mag.). vertically (mag.). embryo is antitropal (e. antitropus) , when, its axis being straight, the micropyle (and radicle) is furthest from the hilum ( Nettle , fig. 578 ; Rumex, fig. 644) ; it is homo- tropal { e . homotropus ) when, its axis being straight, the micropyle (and radicle) is next the hilum, while the chalaza (and cotyledonary end) is distant from the hilum, and onl}- connected with it by a raphe ; then the base of the seed (hilum) and *of the embryo (radicle) correspond (whence the term homotropal, Sage, fig. 579; Chicory, fig. 580 ; Pear, Apricot, Rose, Strawberry , Scabious, Centranthus , Campanula, Hearts- ease, Iris, &c.). The embryo is amphitropal (e. amphitropus) when, its axis being bent, the micropyle and chalaza are both close to the hilum {Wallflower, fig. 586 ; Lychnis, fig. 587 ; Datura, fig. 588 ; Marvel of Peru, fig. 589 ; Mulberry, fig. 590). The embryo is heterotropal (e. heterotropus ) when, from the unequal growth of the coats, neither extremity of the embryo corresponds to the hilum, and the radicle does not correspond 696. Piue. Seed. 590. Mulberry. Ovary cut vertically (mag,). 594. Asparagus. Seed cut vertically (mag.). 595. Spergularia. Seed (magi). to the micropyle; in this case, the axis of the embryo 'is sometimes parallel to the plane of the hilum {Pimpernel, Plantain, figs. 591, 592), sometimes oblique to it ( Wheat, Chamcerops, fig. 593; Asparagus, fig. 594); the radicle is then said to be excentric (r. vaga, excentrica). 108 ORGANOGRAPHY AND GLOSSOLOGY. Form and Surface of the Seeds. — According to their form, seeds are globular, ovoid, reniform, oblong, cylindric, turbinate, flattened, lenticular, angular, &c. ; some are irregular, flat, and rather like grains of sa wdust, and are said to be scobiform (s. scobi- formia ) ; flattened seeds with thick and projecting edges are said to be margined { s . marginata ) {Spergularia, fig. 595), or winged if these margins become broad and membranous ( Bignonia , Pine, fig. 596). The surface may be smooth { s . lave, Colum- bine, fig. 597) ; wrinkled { s . rugosum, Fennel, fig. 598) ; striate { s . striatum. Tobacco, fig. 599) ; ribbed or furrowed (s. costatum. Larkspur, fig. 600) ; reticulate (resembling a sort of network (s. reticulatum, Cress, fig. 601) ; punctate {s. punctatum ), i.e. marked with little dots ; alveolate { s . alveolatum), i.e. covered with little pits resembling 51)8. Fennel. 599. Tobacco, COO. Larkspur. 001. Cress. 602. Poppy. 603. Stellaria. Seed (mag.). Seed (mag.). Seed (mag.). Seed (mag.). Seed (mag.). Seed (mag.). honeycomb {Poppy, fig. 602) ; tubercled { s . tubercxdaturn) , i.e. furnished with small rounded projections ( Stellaria , fig. 603) ; aculeate { s . aculeatum), i.e. bristling with small points ( Snapdragon , fig. 604) ; glabrous [Flax) ; hairy {Cotton). Some seeds have a pulpy testa {Gooseberry, fig. 605 ; Pomegranate) ; others are covered with oily glands, often arranged in bands {Angelica, fig. 606) ; sometimes placed in furrows {Juniper, fig. 607). The hilum, or point by which the seed is attached to the funicle or placenta, forms a depressed or prominent scar ; in the middle or towards one side of this scar, is the umbilicus, a very small simple or compound orifice, indicating the passage of the nourishing vessels of the funicle into the seed. The chalaza, or internal hilum, 605. Gooseberry. 604. Snapdragon. Seed cut 606. Angelica. 607. Juniper. 608. Orange. 609. Orange. Seed (mag. ). vertically (mag.). Seed (mag.). Seed (mag.). Seed, open. Whole seed. forms sometimes a more or less distinct protuberance, sometimes a sort of knob, sometimes a simple blotch {Orange, fig. 608, Almond). The raphe, which maintains the communication between the hilum and chalaza when these are separated during the development of the ovule, appears like a band along one side of the seed ; often it branches out in the thickness of the testa {Almond, Orange, fig. 609). The micro- pyle, which in the ovule formed a large gaping opening, remains visible on some seeds {Bean, Kidney -bean, Pea) ; it disappears in most, but its position is usually indicated by that of the tip of the radicle. The Proper and Accessory Coats of the Seeds. — Seeds do not always possess a SEED. 109 distinguishable testa and endopleure ; often, when ripe, all the coats merge into one, or one splits up into several layers, and the seed presents three or four coats. The origins of these envelopes will be described under the development of the ovule. Arils are accessory organs, which mostly develop after fertilization, and cover the seed more or less completely, without adhering to the testa ; some are expansions of the funicle, and are specially designated as aril ( arillus ) ( Nymphcea , Passijlora, Opuntia, Willow, Yew ) ; others arise from the dilatation of the edges of the micro- pyle, and are called by some authors arillodes or false arils ( arillodes ). In the White Water Lily (fig. 610) a swelling (a, a), rising from the funicle (f), gradually spreads over and caps the ovule, and ends by closely enveloping the seed, without adhering to it, leaving scarcely a trace of an opening- over the chalaza .(Ch.). In Passion-flowers (S12. Yew. ' ' J Young 5 flower. 610. White Nymphtea. Vertical section of the young Seed (mag.). C14. Yew. Ripe fruit, sunk in its fleshy aril. European Spindle-tree, showing the successive developments of the arillode. an annular swelling, with a free membranous torn margin, forms at the shortened end of the funicle, round the hilum ; this gradually expands, and ends by en- closing the seed in a loose fleshy bag, with a large opening towards the chalaza. In Willows (fig. 611), the very short thick funicle expands into an erect pencil of hairs, which envelops the seed. In Cactus Opuntia, two concave boat-shaped expansions spring laterally from the funicle, into which the ovule is pushed, and within which it is developed ; this accessory envelope thickens, hardens, and forms a sort of stone, covered with pulp. In the Yew, the female flower (fig. 612) consists of a single ovule, which is at first protected only by the scales of the bud from which it issued, and after fertilization disengages itself from these, when it is completely naked, with a gaping micropyle at its summit. Soon (fig. 613), between the ovule and the scales at its base, a small cup is developed, which gradually swells, becomes red and succulent, and ends by almost entirely covering the seed (fig. 614) ; this cup is nothing but an enormous development of the funicle, which thus furnishes an envelope to the fruit, which had not even the protecting scale of the Pines and Firs (tig. 379). In the Spindle-tree (figs. 615, 616, 617, 618), the successive stages of development of the arillode (a) are easily followed (1, 2, 3, 4) ; it does not spring from the funicle (/), but from the micropyle, the edges of which dilate by degrees so as to form around the seed a succulent, loose, folded bag, open towards the chalaza. 110 ORG A NOGRAPH Y AND GLOSSOLOGY. It must be observed that this arillode, starting from tlie micropyle, which is very near the hilum, unites at a very eai’ly stage with the funicle, of which it appears to be an appendage, but its origin may be recognized in very young ovules. In the Nutmeg, the fleshy and honeycombed envelope of the seed, which forms the aromatic substance called mace, may be looked upon as an expansion of the micropyle. In Euphorbia (fig. 619), the circumference of the micropyle, which formed at first a little swelling, thickens enormously after fertilization, and forms a small fleshy disk, of which the central canal, at first filled with the conducting tissue, becomes by 621. Asclepias. Seed (mag.) with hairy arillode. degrees stopped up. In Polygala (fig. 620), the little three-lobed body at the base of the seed has the same origin as the disk of 619. Euphorbia. Seed crowned by a fleshy arillode (mag.). 620. Polygala. Seed capped by a cartilaginous arillode (mag.). 623. Chelidonium. Seed cut vertically (mag.). Euphorbia, and the micropyle is visible long after fertilization. In Asclepias (fig. 621) the tuft of hairs which crowns the seed is also an arillode proceeding from the micropyle. The name of strophioles ( strophiolce , carunculce) has been given to excrescences on the testa which are independent of the funicle or micropyle, as the glandular crest which in Heartsease (fig. 622) and Chelidonium (fig. 623) marks the passage of the raphe ; the cellular mass which in Asarum (fig. 624) extends from the hilum to beyond tlie chalaza, and the tuft of hairs at the chalaza in Epilobium (fig. 625). The name aril having been indifferently applied to true arils, arillodes, strophioles, &c., it would be advisable to keep this term as a general name for excrescences of various sorts which appear upon seeds, and to limit the meaning by an adjective indicating their origin. We should thus have a funicular aril (Willoiv, Nymphcea, Yew ) ; a micropylar aril ( Spindle-tree , Euphorbia, Polygala, Asclepias ) ; a raphean aril (i Chelidonium , Asarum ) ; a clialazian aril {Epi- lobium), &c. A second adjective might denote its membranous, fleshy, hairy, &c. texture. (>‘25. Epilobium (mag.). Clialazian tuft of hairs. G27. Bcrberis. Seed cut vertically (mag.). G28. Walnut. Seed cut vertically. 620. Lime. Embryo spread out (mag.). 630. Cuscuta. Embryo coiled round its albumen (mag.). Embryo or Young Plant. — In most pliaenogainic plants the embryo is dicotyledonous, SEED. Ill whence the name Dicotyledons. Some species (Pines, fig-. 626), possess six, nine, and even fifteen wliorled cotyledons. Other phsenogamic plants have only one cotyledon ; whence the name Mono- cotyledons. The colour of the embryo varies ; it is white in most plants, yelloiv in some Cruciferce, blue in Salpiglossis, green in the Spindle-tree and Maples, and pink Thalia. The cotyledons are generally fleshy, their parenchyma is oily in the in Walnut and the Almond^ and mealy in the Kidney-bean ; they have sometimes dis- tinct nerves ( Berberis , fig. 627) ; they are sessile or petioled, or reduced to a petiole without a limb ; this is especially the case in monocotyledons. They are usually entire and equal, but may be lobed (Geranium, Walnut, fig. 628), or palmate (Lime, fig. 629), or very unequal, with the smaller so minute that the plant might be mis- taken for a monocotyledon ( Trapa ). Those of the Nasturtium and Horse-chestnut unite as they grow old into a compact mass. In some parasites they entirely disappear, and the embryo is reduced to its axis ; as in Guscuta (fig. 630), whose thread-like stem 631. Mallow. Embryo (mag.). 032. Bindweed* Embryo spread out (mag.). 033. 'Wallflower. Transverse section of seed (mag.). 034. Rocket. Transverse section of seed (mag.). 635. Orange. Seed without its testa. and living on is attached to the plants it preys on, by suckers (p. 16, fig. 48) their juices, it needs no leaves to elaborate sap; and the adult plant, like the embryo, possesses no leaves. Cotyledons are sometimes folded in halves, along their median line ; or convolute (Mallow, fig. 631) ; or spiral (Hop) ; or crumpled (Bindweed, fig. 632) ; the embryo itself is straight, or curved, or zigzag, or annular, or spiral, or rolled into a ball, &c. Often the radicle is turned up on the cotyledons ; if it is then placed against their commissure it is said to be lateral, and the cotyledons are accumbent (c. accumbentcs, Wallflower, fig. 633) ; if it is on the back of one of the cotyledons, it is said to be dorsal, and the cotyledons are incumbent (c. incumbentes , Pocket, fig. 634). Some seeds contain several embryos ; the Orange (fig. 635) has often two, three, or four unequal, irregular, and convolute, the cotyledonary ends of all facing the chalaza, and their radicles facing the micropyle ; they all leave the seed at the period of germination (fig. 636). The seed of the Almond frequently pre- sents two superimposed embryos, one of which appears to proceed from the first, like successive internodes (fig. 637) ; they may be easily separated (fig. 638), when their respective radicles and two cotyledons can be plainly seen. The monocot yledonous embryo is usually cylindrio or ovoid; to distinguish the 636. Orange. Germinating seed. T, testa ; c, included cotyle- dons ; pl, stems ; G, plan- tules. 112 ORGANOGRAPHY AND GLOSSOLOGY. parts of which it is composed, it must be cut vertically, when it usually discloses an elongated axis with a small protuberance marked with an oblique or vertical fissure : this protuberance represents the plumule ; the fissure through which the two first leaves will appear marks the separation between the caulicle and cotyledon. Owing to the small size of the parts, it is sometimes difficult to distinguish the cotyledonary from the radicular end; but the latter, which answers to the micropyle, is usually nearer to the integument than the former ; this is evident in the seed of Arum (fig. 639). In Oats and other Graminece (fig. 640), the seed, if halved longitudinally along the furrow on its inner face, discloses a very abundant farinaceous parenchyma (a), of which we shall presently speak ; from the base of the seed along its dorsal face rises the embryo (r, g, c), of a yellow, semi- transparent colour; within this is a fleshy leaf (c), which extends one-tliird of the length of the seed ; this leaf encloses several others, successively smaller (g), which enfold each other, and are placed between the largest leaf (c) and the dorsal face of the ovary (o) ; all rise from 639. Arum. Seed out vertically (mag.). 641. Oat. Isolated embryo seen on its outer face (mag!). 643. Aconite. Seed cut Vertically (mag.). 640. Oat. Vertical section of fruit (mag.). 642. Oat. Germinating embryo, (mag.). an enlarged neck which narrows towards the base into an obtuse cone ; the interior leaf (c) is the cotyledon, the others (g) form the ‘plumule, the conical disk is the caulicle, terminated by the radicular end (r). If we extract the entire embryo (fig. 641), we perceive the cotyledon, which is large, and hollowed into a sort of spoon-shape, in the middle of which lies the plumule, forming a closed bag ; in the middle of this bag is a very suiall longitudinal slit, which enlarges later into a sheath, to open a passage for the contained leaves ; below is the caulicle, bearing the cotyledon on its side, and the plumule in its axis ; its free end is terminated by rounded protuberances, in which holes will form, whence radicular fibres will emerge at the period of germination, as from so many sheaths (fig. 642, Col.). Albumen. — Many seeds contain, besides the embryo, a disconnected accessory mass of parenchyma, named albumen ( albumen , perispermum), the formation of which will be explained in the chapter on the Ovule. It is destined to nourish the embryo, and exists at an early period in all seeds ; if only a portion of it is absorbed by the embryo, the rest hardens, up to the period of germination, and the embryo is said to be albuminous ( e . albuminosus ) ; if it be absorbed, the embryo is exalbuminous SEED. 113 (e. exalbuminosus) . The albumen nj ay he very copious ( Aconite , fig. 643), or extremely thin ancl almost membranous ; in general it is largest when the embryo is smallest, and vice versa. It is said to he farinaceous (a. farinaceum) , when its cells are filled with starch (. Buckwheat , Barley, Oats, fig. 640 ; Rumex, fig. 644) ; fleshy (a. carnosum ), when its parenchyma, without being farinaceous, is thick and soft ( Berberis , fig. 627 ; Heartsease, fig. 645 ; Nightshade ) ; mucilaginous (a. mucilaginosum) , when it is suc- culent and almost liquid ; it is then rapidly absorbed, and may almost entirely dis- 645. Heartsease. Seed cut vertically (mag.). fi47. Nymphsea. Seed (mag.). Seed cut vertically (mag.). Seed cut vertically (mag.). appear {Bindweed) -, oleaginous {a. oleaginosum) , when its parenchyma contains a fixed oil {Poppy, fig. 646) ; horny {a. corneum), when its parenchyma thickens and hardens {Galium, Coffee, Iris) ; like ivory {a. eburneum), when it has the consistency and polish of ivory {Phytelephas). In Pepper and Nymphcea (fig. 647), &c., the seed contains two sorts of albumen ; which will be noticed when treating of the ovule. The embryo is axile, when its direction corresponds with that of the axis of the seed {Heartsease, fig. 645) ; it is peripheric {e. peri- phericus), when it follows the circumference of the seed, and surrounds the albumen {Rose Campion, fig. 648) ; it is ruminate {a. rumina- tum), when the testa or endopleura forms folds which are projected in the interior of the seed, and form incomplete septa in the thickness of the albumen, like the folds found in the double stomach of ruminating mammals {Ivy, fig. 649). Germination. — Germination is the action by which the embryo grows and throws off its coats, finally supporting itself by draw- ing its nourishment from without. The free end of the caulicle (fig. 650, t), terminated by the radicle, usually enlarges the orifice of the micropyle, and emerges ; soon the entire caulicle throws off' its envelopes, with the cotyledons (c) and the plumule (g) ; the latter lengthens in its turn, and its little leaves expand as it rises; at the same time the radicle develops, and descends into the earth. If the caulicle, which is the first internode i 650. Kidney-bean. Seed germinating. >1. Orange seed germi- nating. c, cotyledons enclosed in the testa, t. 114 ORGANOGRAPHY AND GLOSSOLOGY. of the plant, lengthens during germination, the cotyledons are raised, and appear above ground ; they are then said to be epigeal (c. epigcei, Kidney-bean, fig. 650 ; Radish, Lime). When the caulicle is very short, and the plumule (which forms the second internode) rapidly lengthens, the cotyledons remain in the ground, often even within the seed-coats ; they are then said to be hypogeal (c. liypogcei, Spanish Kidney- bean, Oak, Graminece, Orange, fig. 651). In monocotyledons, the evolution of the radicle presents a remarkable pecu- liarity : it is provided at the base (fig. 642) with a sort of sheath, named the coleorhiza ; this is nothing but an outer cellular layer which, having been unable to accompany the development of the radicle (r), has been pierced by it. ANATOMY. In Organography we have described the fundamental organs Avhich provide for the growth and reproduction of plants ; namely, the root, the stem, the leaves, the floral whorls, and the seed ; hut these are themselves composed of parts which cannot be studied without the aid of the microscope. These parts, the structure of which varies but little in different plants, and which are elementary vegetable tissues, are named elementary organs ; and the science which treats of them is called Vegetable Histology, or Vegetable Anatomy. ELEMENTARY ORGANS, If we examine microscopically the thinnest possible slice of a stem, root, leaf, or floral organ, it will present many different cavities, some entirely enclosed in walls, others having no proper walls, but being- interspaces between the first ; taken together, they present the appearance of a fabric or tissue ; whence the name vege- table tissue. The closed cavities present three principal modifications: — 1. Cells. — Their diameter is [originally] nearly equal every way. 2. Fibres. — These are longer than broad, and their two ends are spindle-shaped. 3. Vessels, or lengthened sacs, the two ends of which cannot be seen at once under the microscope. Cells are very variable in shape, depending on the manner in which they are arranged. If they are not crowded, they retain their primitive form of spheroids or ovoids (fig. 652) ; but if the contiguous faces become pressed together in the rimct telY course °f their growth, they become poly- hedral, and may be dodecahedrons, or four-sided prisms, either lengthened into columns, or tabular, or cubical. A transverse section of prismatic cells presents equal squares, a vertical section of dode- cahedral cells presents hexagons (fig. 653) like a honeycomb ; whence the name of cellular tissue given to these cells collectively. Lastly, the cells may be placed end to end, like superimposed cylinders or barrels (fig. 654). When the cellular tissue ( parenchyma ) is very compact, there are no interstices 653. Elder. Cellular tissue of the central pith. fA , : * y ' * » j Sfr 1 / 654. Lily. Elongated cells. 116 ANATOMY. between the surfaces of the cells ; but if the tissue is loose, the cells retain their rounded form, and leave larger or smaller intercellular canals (fig. 655). These spaces occur between polyhedral cells when an interposed liquid or gas displaces them ; and it may happen (fig. 655) that if a regular pressure is exerted in neigh- bouring spaces, each of which is circumscribed by a small number of cells, the latter may be disjointed, and a portion of their walls pressed inwards ; but where there are two contiguous spaces, the pressures from without will counteract each other, and the cells remain coherent ; they then take the shape of stars, the contiguous rays forming isthmuses which separate the spaces. Sometimes the intercellular space is circumscribed by a great many cells ; it is then called a lacuna. These lacunce do not always result from the displacement of the surrounding cells, but from the destruction of several of them, or the rapid growth of the plant. In their earliest condition cells are sacs surrounded by a thin homogeneous membrane, which is soft and moist at first, but dries by degrees. Sometimes this membrane constitutes the sole wall of the cell, sometimes it is lined by a second; but the latter does not form a continuous sac ; it is wanting here and there, and only partially lines the outer membrane ; the result is that there are thin areas where 655. Bean. Starred cells. 656. Elder. 657. Mistleto. 658. Mistleto. Rayed cells. Rayed and reticulate cell. Annular cell. 659. Orchid. Spiral cell. there is but one membrane, and thick areas where there are two. When the inner membrane is deficient only in small spots, these appear as punctures (fig. 652) or short lines (fig. 656) ; when it is absent over considerable irregular areas, the thin places form an irregular network (fig. 657), of which the open parts answer to those where the inner membrane is wanting, and the tlneads to the parts where it lines the outer membrane. Lastty, when the solution of continuity of the inner membrane is extremely regrdar, the open spaces are separated by parallel thickened rings (fig. 658), or a thickened spiral which passes from one end of the cell to the other (fig. 659). Cells may either be homogeneous, or punctate, or rayed, or reticulate, or spiral, or annular ; and in many cases the same cell passes successively through more than one of these forms. It frequently happens that a third, fourth, or fifth membrane is developed within the second, by which the wall of the cell is corre- spondingly thickened. It has been observed that these successive membranes usually mould themselves upon the second, so that the thin and thick portions of the cell correspond throughout. Fibres. — The length of these varies, but most have a very thick wall, formed at first of a single membrane, lined by a succession of others developed within it ; and as the cavity of the fibre diminishes more and more with age, the fibre finally appears ELEMENTARY ORGANS. 117 650. China regia. Fibres cut transversely. 661. Clematis, Punctate fibre. nearly filled up. The canal which forms its axis is cylindric ; hut its outer walls, which are pressed against those of the neighbouring fibres, are flattened and pris- matic, as may be seen by a transverse section of fibrous tissue (fig. G60). The fibres, being spindle-shaped at their extremities, cannot be in juxtaposition throughout their length, but the extremities of other fibres are inserted between their free portions, and hermetically close the conical interspaces above and below them (fig. 661). When the successive inner layers completely line the outer layer, as frequently happens, the cavity of the fibre remains smooth ; if the second layer does not com- pletely line the first, spiral or reticulate thickenings are the result (spiral or reticulate fibre) ; and dotted or punctate fibre (fig. 661), the most common form of all, is the result of the failure of the inner layer over minute areas. Vessels are much elongated tubes, the walls of which are never smooth, but present either slender spots or lines, or a close netivorTc, or rings, or spiral lines ; they are cylindric, and constricted at intervals (fig. 668). The contractions are circular and hori- zontal and close set, or oblique and distant. If the vessel be boiled in dilute nitric acid, it breaks up at the striae. Where the constrictions occur, membranous folds often project as lings or perforated diaphragms into the interior; whence it has been concluded that the vessel is formed partly of cells, partly of fibres joined end to end, of which the ends, which at first formed septa, have gradually become obliterated or per- forated. The vessels, like the cells and fibres, are named, according to the appearance of their walls, punctate, striate, reticulate, annular, spiral. The spiral vessels, or tracheae (fig-. 662), are membranous tubes, uninterruptedly traversed within by a pearly white spiral thread ; this thread is neither tubular nor channelled, but cylindric, flattened (fig. 663), or a four-sided prism. The tracheae being spindle-shaped at each end (fig. 662), are regarded as elongated fibres. Nothing is easier than to examine these tracheae : if young shoots of Rose or Elder be gently broken, there will be seen by the naked eye between the ruptured 662. Melon, surfaces a spiral thread, lengthening and shortening like jia. iH.e. a pjece 0f elastic. The outer membrane is not so obvious, except when the coils of the spiral thread are very remote. In most cases the spiral thread is single, but it may be double, and sometimes as many as twenty form a ribbon ( Banana ) and can be unrolled together. Finally, a spiral thread, which was originally single, may become folded and broken up into finer threads (Beet-root) . Annular vessels (fig. 664) are membranous tubes girt within by rings, which m a ii=fa mj i. Mamillaria. Trachea. 118 ANATOMY. may be incomplete, or spirally twisted (fig. 665), whence they have been mistaken for old tracheae ; they, however, differ from trachea) in that they never present in their earliest condition a regular and continuous spiral, and that many intermediate forms between the ring and the spiral occur in every such vessel ; as, however, they termi- nate in tapering cones, they have evidently the same origin as the tracheae. Reticulate vessels are a modification of the annular ; if rings are so placed as to touch at intervals, they resemble a network, and the same vessel may be both annular and reticulate (fig. 666). Striate vessels are membranous tubes, cylindric or pris- matic, the inner membrane of which resembles a web, whose interstices form thin more or less regular stria;. In prismatic vessels (fig. 667) the striae extend to the angles, and the interstices resemble the rungs of a ladder, whence their name of scalariform vessels. Striate vessels ori- ginate as a series of superimposed cells ; others as fibres, shown by their "fl as 665. Melon. Spiral and annular vessel. G66. Melon. Reticulate and annular vessel. 667. Brake. Rayed prismatic vessels. spindle-shaped ends. 668. Melon. D°ited VeSSelS ^ Punctate moniii- (368) are membranous form vessel. ' tubes of which the inner membrane is perforated by small holes forming parallel series of oblique or horizontal dots ; the vessel presents equidistant constrictions corresponding to circular folds in the interior, clearly indicating that the punctate vessel is formed by superim- posed cells of which the connecting surfaces have been absorbed. Punctate vessels with deep constrictions resemble chaplets of beads, whence i their name of moniliform or beaded vessels. Laticiferous Vessels. — We have seen that proper vessels present inequalities resulting from the modifications of the inner membrane ; there are others with smooth transparent and homogeneous walls, which contain a peculiar juice named the latex (fig. 669) ; these anastomose, and form a complicated network, of which the tubes meet at right or acute angles ; these tubes are usually cylindric, and swollen here and there (fig. 670), from the accumulation of latex in certain places; below these swellings the vessel is gradually constricted, and the communication between the constricted and swollen portions is interrupted. The laticiferous vessels 666. Chelidonium. Laticiferous vessels. 670. Dandelion. Laticiferous vessels. ELEMENTARY ORGANS. 119 are thus distinguished from proper vessels bj their transparent walls and by branching. Union of the Elementary Organs. — Botanists are divided in opinion as to the forces which cause the walls of the elementary organs to cohere ; some think that the walls of the cells are originally semi-fluid, and hence become agglutinated, and remain so even after the plant has ceased to live ; others consider that an inter- cellular secretion cements the adjacent cell-walls. A third opinion is that vegetable tissue originates as a homogeneous plasma, which gradually thickens, and ends by forming vacuoles, which afterwards become the cavities of the cells ; a common septum therefore separates the neighbouring cells ; but soon each cell becomes individualized, the septum doubles more or less completely, and the cohesion between the cells is due to an interposed cellular tissue. This theory differs from the second, inasmuch that in the latter the cells are cemented by a subsequently secreted matter, while in the former the cells are united by an unorganized tissue, developed cotemporaneously with themselves ; this unorganized tissue then itself becomes cellular, and finally separates the previously individualized cells which it originally united. Communication is established between elementary organs in various ways ; it has been stated that it takes place by means of the destruction of the contiguous surfaces of cells and fibres placed end to end, from which there results a vessel ; communication can also be established through the walls of cells, either by the disappearance of the outer membrane, or by slits or holes at different points of its wall, or simply by pores rendering these membranes permeable. Contents of the Elementary Organs. — The contents of these are very various : gaseous, liquid, or solid. Cell-contents appear as scattered or agglomerated granules, which in very young cells usually assume a lenticular form, and rest against the wall, or are even buried in its thickness (fig. 654) ; this body (the nucleus, ci/ 1 oblast, or phacocyst of the cell) is regarded by botanists as a germ which, by its development, will produce a new cell. In most cases the nucleus becomes less distinct as the cell develops. According to the recent labours of M. Hartig, the nucleus is principally formed of small particles of matter analogous to albumen, a certain number of which are transformed into vesicles, which again give origin to cellulose, fecula, chlorophyll and aleurone. Cellulose is an insoluble substance forming the cell-walls, fibres, and vessels, the composition of which is identical in all plants. Woody tissue or lignine is nothing but the thickened and condensed cellu- lose ; to its density wood owes its hardness ; the stony particles in the flesh of pears and the stones of fruits are also formed of it. Fecula or starch may be recognized by its blue-violet tinge when acted on by iodine, by its insolubility in cold water and its coagu- lation in hot water ; its chemical composition is that of cellulose. Starch-grains are generally spheroidal or irregularly ovoid (fig. 671) ; their surface presents concentric circles around a point which usually occupies one of the ends of the granule. These circles indicate so many layers, superimposed around a small nucleus; thus the starch-grain is developed from within outwards, that is, in the reverse way to the cell 120 ANATOMY. which coTitains it. Starch-grains may be easily examined by moistening a slice of cellular tissue containing them ; a drop of iodine will then colour the starch- grains blue- violet, and bring out clearly the distinction between the cell and its con- tents. If there be grains of albumen accompanying the starch-grains, the iodine will colour them brown or yellow. Chlorophyll or cliromule is a green substance, which forms flakes of a gelatinous consistence floating in the colourless liquid of the cells ; these flakes have a tendency to gather around or collect on the inner cell-walls, or on the contained starch or aleurone grains. Chlorophyll constitutes the green colour of plants ; it is dissolved by alcohol, whence it has been supposed to be of a resinous nature. The yellow colouring matter of cells is similar in consistence and properties to chlorojfliyll ; but red, violet, or blue colouring matters are always liquid. Aleurone abounds in ripe seeds, and is always found either in the embryo or albumen. Hartig considers an aleurone grain to be a vesicle with a double membrane, containing a colourless waxy mass, which is coloured yellow by iodine, and is ordinarily soluble in water. In certain plants it assumes a well-defined crystalline form (figs. 674, 675) ; in others, the nucleus of the aleurone mass has crystal- lized, while the surrounding layers remain amorphous, and thus the grain presents a round or ovoid form. Aleurone is essentially formed of substances which are collectively termed protein (for which see the section on Vegetable Physiology). According to Hartig, the particles of the nucleus undergo the following transformations : 1, the nucleus is transformed directly into chlorophyll, fecula, or aleurone ; 2, it is transformed into starch and the starch into aleurone ; 3, it is transformed into chlorophyll, and that into starch, which again passes into aleurone. The laticiferous vessels contain a large quantity of powdery granules, which float in the latex, some of which are very large and colourless, and partake of the nature of starch. As to the sap which fills these cells, and rises in the vessels, it is a coloui’less liquid, holding in solution the materials for cell-formation and cell-contents. The other liquids, either contained in the cells, or in the intercellular spaces, are fixed or volatile oils, turpentines, sugar or gum, dissolved in water. Finally, we find gases occupying the intercellular spaces, sometimes at considerable depths. Besides the solid organic substances above described as occurring in the cellular tissue, special cells occur, containing mineral substances, the elements of which, either compound or simple, have been carried up by the sap, and have cry- stallized in the cells. Those of which the elements were originally in combination 674. Lathraea. Cell containing crystals of aleurone, in the midst of cells containing chlo- rophyll. aleurone. raphides. ELEMENTARY ORGANS. 121 would crystallize at once ; but for tlie others, it is necessary that the elements which have a reciprocal affinity should be united in proper proportions. In all cases, it is only during life that this crystallization is carried on, for the crystals are found in special cellular tissues, the forms of which determine theirs ; the same salt being, in fact, found to crystallize very differently according to the tissues in which it is formed. The crystals contained in the cells are either solitary or clustered ; in the latter case they are grouped into radiating masses (fig. 672), or bundles of parallel needles (fig. 673) named rap] tides (r); and they may often be seen escaping from the cells (c) when the tissue containing them is dissected under the microscope. Finally, the cells and even the intercellular spaces often contain silex, one of the most abundant of minerals, which constitutes sand and flint; this silex even encrusts the tissues of certain plants, and notably the straw of Graminece. Certain mineral concretions are observable in the leaves of some Urticece ; if the leaf of a Nettle be viewed with a lens, transparent spots may be distinguished ; this is due to the presence of calcareous particles deposited in the outer cells, to which Weddell has given the name of cystoliths. These cystoliths differ from the crystals represented in fig. 672, in being deposited in calcareous layers around a nucleus formed at the expense of the cell-wall, which has been pulled aside by the accumulation of mineral matter, and has lengthened into a very delicate pedicel from which the cystolitlx is suspended. This formation may be compared with that of stalactites. Epidermis. — Before treating of the anatomy of the fundamental organs, we shall describe the epidermis, which covers the surface of the vegetable. If the leaf of a Lily or Iris be torn, a shred of transpa- rent colourless membrane is detached from one of the fragments, together with some cellular tissue, filled with green chlorophyll; a simple lens shows on this membrane several parallel (fig. 676) or reticulate lines (fig. 677) and small, more opaque spots. Under a microscope, it is seen to be com- posed of large flat cells, which may be hexagonal or quadrilateral, or irregularly waved, and which contain a colourless liquid ; their lateral walls are closely united, whence the solidity of the epider- Epidermis and stomata. mis ; their lower surface slightly adheres to the subjacent cellular tissue ; their exposed walls are usually thicker than the others, and may be flat or raised in the centre, according as the surface of the epidermis is smooth or rough. In most cases, the epidermis is composed of a single layer of cells ; when there is a second, it is usually formed of much smaller cells. The lateral walls of all the epidermal cells are not contiguous ; many of them present interspaces, occupied by little bodies resembling a button-hole with a double rim or border (figs. 676, 677), s. 677. Balaam. Epidermis and stomata. 122 ANATOMY. formed of two curved cells wliose concavities face each other. These two small lip- like cells are termed stomata. Stomata, though epidermal organs, differ from the epidermis in that their cells are much smaller, and nearly always situated below those of the epidermis ; they further present different contents, and especially granules of chlorophyll ; whence they may be regarded as intermediate between the epidermis and the subjacent parenchyma. Stomata are variously distributed over the surface of the leaves : usually solitary, often arranged in series, some- times crowded in the base of a cavity (as in some Protcacew, figs. 678, 679). Their number varies : the Iris contains 12,000 in a square inch; the Pink, 40,000 ; the Lilac, 120,000. When moistened, their lips swell and become more curved, and hence gape ; when dry, they shorten and close. Stomata always correspond to intercellular passages, and are found on the ordinary leaves of Pham ogams, principally on their lower surface, on stipules, on herbaceous bark, calyces, and ovaries ; they are wanting on roots, rhizomes, non- foliaceous petioles, most petals, and seeds ; acotyledons, and submerged aquatic plants, which have no epidermis, equally want stomata. If a fragment of a stem or leaf be macerated, the cellular tissue beneath the epidermis is rapidly destroyed, and the latter divides into two layers, an external epidermis proper, and a very thin membrane (fig. 680), moulded on the epidermis and extending even over its hairs, which are sheathed in it like fingers in a, glove (p) ; it presents openings (p) corresponding to the stomata. Brongniart has called this membrane the cuticle ( little shin) ; it is not cellular, like the epidermis which it covers. 678. Vertical section of part of a Banksia leaf j;mag.).‘ 679. Part of a Banksia leaf, presenting three sections parallel to tlie lower sur- face, and at different depths (mag.).2 680. Cabbage. Cuticle. 1 Fig. 678 is a section perpendicular to the thickness of the leaf, showing: 1, on the upper and lower faces two layers of epidermal cells ; 2, fibro-vascular bundles to the right and left, cut perpendicularly to their length ; 3, on the lower face, a depression, clothed with hairs, and pierced by stomata which communicate with the interstices of a very loose cellular tissue. Above this tissue, the upper half is a mass of elongated and erect cells, perpendicular to the epidermis. * Fig. 679. Three sections parallel to the plane of the leaf, carried through three such depressions, each circum- scribed by the fibro-vascular bundles of the nerves. In the cavity at the bottom of the figure, the section has carried away the hairs clothing the walls of the depres- sion, leaving the stomata and epidermal cells visible ; in the cavity on the right the loose cellular tissue which underlies the stomata of the epidermis is seen through the latter; in the third depression the section has re- moved all but this subjacent tissue with its intercellular spaces. FUNDAMENTAL ORGANS. 123 The cuticle is more constantly present than the epidermis ; submerged plants and acotyledons are clothed in it; and some botanists have considered that it should be regarded as the true epidermis. Its formation is attributed to the overflow of that intercellular secretive tissue which we have already spoken of as spreading itself upon all the organs, and which deposits a sort of varnish or continuous layer over their outer surface. Recent experiments of Fremy seem to show that the chemical composition of the cuticle is analogous to that of india-rubber, which makes it a suitable protection for the underlying tissues. Fremy has also discovered that woody fibre is sometimes clothed with a cuticle similar to that which clothes the epidermis. FUNDAMENTAL ORGANS. W e shall now describe the anatomy of the fundamental organs in succession ; i.e. the vegetable axis (stem and root), and its lateral expansions (leaves, sepals, petals, stamens, carpels, ovules). We have described the embryo as a diminutive plant, from which all the parts enumerated above will be developed ; we must there- fore first describe its structure, and then trace its stages of development from its birth till it becomes a plant similar to its parent. The embryo invariably commences as a cell with granular contents. In cotyle- donous plants, this cell does not retain its form and structure ; from spherical it becomes oval ; then at one of the extremities, if the plant is monocotyledonous, a rounded lobe ( cotyledon ) appears, obliquely and laterally to the axis ; if dicotyle- donous, two lateral lobes ( cotyledons ) appear, crowning the axis ; the elongated summit of the axis becomes tli e plumule’, from the opposite end the radicle will be developed, and the body of the cellular mass will form the caulicle. Following the growth of these fundamental organs, we begin with the stem, which differs remark- ably, according to whether the embryo is mono- or di-cotyledonous. Stem of Dicotyledonous Plants. — Take the Melon as a type. In the caulicle, which before germination is entirely cellular, some cells elongate into fibres ; certain of these fibres, together with other super- imposed cells, break the transverse walls wdiich separated them, and become vessels. This change takes place in definite posi- tions, and a horizontal section of the stem (fig. 681) will show in the centre a disk (m) of large, loose, nearly transparent polyhedral or spheroidal cells ; at the circumference, a ring of dark green, more closely packed cells ; communication being established between this ring and the disk by radiating bands of cells (rm), extending from the centre to the cir- cumference, and dilating in the same direction ; the whole resembling a wheel, of which the tire is the circle, the axle the central disk, and the spokes the radiating bands. Between the disk and the circle, and separated by the bands, are wedge-shaped plates, which together form a circular group, and consist of fibro-vascular tissue, and vessels which have been formed in the middle of the cellular mass, and become united into bundles. The gaping G81. elon. Horizontal slice of ttie stem (mag.). 124 ANATOMY. mouths of these vessels and fibres are very evident, as is the relative thickness of their walls : we shall return to this immediately. The cellular tissue of the ring, disk, and bands, constitutes the medullary system. The medullary system of the disk (m) is called the 'pith ; that of the ring is the cortical pith ; and the radiating cellular bands (em) are the medullary rays. The wedges of fibres and vessels, separated by the rays, are the fibro-vascular system. If we now dissect one of the bundles in a well-formed stem of Melon, whose duration is annual (fig. 682), it is found to be tolerably stout, and completely surrounded by the cellular tissue, the pith (m), bark (pc), and medullary rays (km). Beginning from the interior, we find, 1, spiral vessels (t), and opaque white fibres with thick walls; 2, fibres (f) with thinner walls, and consequently larger cavities, ai’ranged in series, and altogether occupying half of the wedge ; together with annular, rayed, and dotted vessels (v p), recognizable, especially the latter, by the size of their walls ; 3, a greenish cellular tissue (c) ; 4, thick-walled fibres (l) like those next the pith, but more abundant ; 5, some branching ( laticiferous ) vessels (v l) with soft walls ; 6, the cortical paren- chyma (pc), covered by a membrane (e) consisting of the epidermis and cuticle. In a horizontal section of the stem (fig. 681), the tracheae (t) and fibres next the pith form with the neighbouring vessels a ring (interrupted by the medullary rays), which has received the collective name of medullary sheath ; the fibres are the woody fibres ; the outer fibres, separated from the former by a cellular zone, and resembling those of the medullary sheath, are the woody fibres of the bark ; finally, the cellular zone which separates the cortical from the woody fibres is called the cambium layer. In the Melon, this zone dies each year, together with the fibro-vascular bundle, which it divides into two unequal parts ; but in a woody-stemmed, and hence perennial plant (Oak, Elder), fresh layers are annually formed in the thickness of this zone, by which the thickness of the stem increases. Young branches, therefore, one or two years old or more, must be examined, to trace the further development of the wood and bark. A fibro-vascular bundle in a one-year-old branch of Oak, Elder, or Maple (fig. 683), coincides in structure with that of the Melon stem ; but in the cortical system (p c) there will be found, between the epidermis and central layer of cells, a layer of close-set cubical or tabular cells (s) ; these contain no chlorophyll, are white or brown, and are readily distinguishable from the subjacent cortical cells, which are polyhedral, coloured by green granules, and separated by numerous interstices. This 682. Melon. Horizontal slice of one of i -i , i • n „ +i the fibro-vascular bundles OULSHie tills Slieatll of the stem (mag.). 683. Maple. Fibro-vascular bundle of the stem at the beginning of the second year. Trans- verse and vertical sections (mag.). FUNDAMENTAL ORGANS. 125 layer is the suber, which in certain trees attains a considerable development, and forms cork. Take now a vertical section of the same branch, and the disposition. &c. of the fibres and vessels will appear as in fig. (383. The cambium, which does not become organized in annual or herbaceous stems like the Melon, in perennial stems becomes highly organized (fig. 684). During the ^ y second year, this gelatinous tissue undergoes the following outside the woody C84. Maple. Horizontal slice, showing the development of a woody bundle in a three- year-old branch, c, cambium layer, separating the wood from the bark. 1. Pith (M), trachea? (T), punctate vessels and fibres of the first year (v).— 2. Punctate vessels (v) and fibres (F) of the second year. — 3. Vessels (v)and fibres of the third year. Within the bark (s) is seen the cortical layer of the first year (p. L), then that of the second year (p. l), and of the third year (p. L), separated by the cambium (c) from the contemporaneous woody layer (mag.). 685. Oak. Horizontal slice of a twenty-five years old trunk. fibres interspersed with large vessels (1 . v), is formed one fresh cambium layer (2. f, v) ; within the fibres of the liber and of the cortical system another is formed ; these layers become moulded upon the older ones, and the zone of cambium which is transformed to produce them presents a cellular organization at those points, which corresponds to the cells of the medullary rays, so that these continue without interruption from the pith to the cortical layers. Each ring of vascular bundles was hence from its earliest condition enclosed in two cambium layers, of which one belongs to the wood, the other to the bark ; each of these vascular bundles, again, is in its turn separated by a cambium layer, which in the third year repeats the process, producing within ligneous fibres (3. f) and large vessels (3. v), and outside liber (l) and cortical parenchyma (p), and so on each year. Now, each wood bundle being composed of two elements, and the large- sized vessels being usually towards the interior of the bundle, we can, by counting their number (which is easily ascertained by the gaping mouths of the large vessels), reckon the number of annual layers, or, in a word, the age of the stem or kranch (fig. 685). It must be remarked that the secondary ligneous bundles differ from the primary in the total absence of trachese ; these vessels being confined to the medullary sheath. We have said that the medullary rays are not interrupted by the formation of new vascular bundles, because the cambium zone remains cellular at the points corresponding to these rays. If each newly formed bundle was undivided, like that in juxtaposition with it, the number of medullary rays would be always the same ; but this is not the case ; at the circumference of the primitive bundle one or more longitudinal series of cells is developed, which reach to the circumference, and 126 ANATOMY. 686. Cork Oak. Horizontal slice showing the development of two woody bundles in a four-year-old branch (mag.). divide tlie new bundle into two or three parts (fig. 686). These cellular rays (2, 8, 4), which are termed secondary medullary rays , to distinguish them from the primary (l) , which start from the pith (m) , are thus doubled in each f annual ring, and, like the large rays between the fibro-vascular vessels, form a sort of vertical septa or radiating walls, com- posed of elongated and super- imposed cells ; whence the name of muriform tissue for the me- dullary rays. Hence, in its totality the stem presents two very distinct systems, the woody [wood), and the cortical (baric). 1. The woody system is formed of the central pith and zones of fibro-vascular bundles, sepa- rated by medullary rays. The innermost of these is the medullary sheath, formed of tracheae and fibres analogous to the liber, and outwardly composed of woody fibres and rayed, annular, and dotted vessels. The other zones are similarly organized, except that they never possess tracheae. 2. The bark system is formed of the epidermis, the cork, the endophleum, and the bast fibres (liber), external to and amongst which the laticiferous vessels ramify. With age the cells of the pith lose colour, dry, separate, and finally die; the woody fibres thicken, and usually darken ; of these the heart ■ wood (duramen) differs from the more recently formed or sap-wood, which is more watery, softer, and brighter coloured. The liber fibres (fig. 686 bis) are more slender, longer, and more tenacious than the woody fibres ; and are of great use in the manufacture of thread, cord, and textiles. Their bundles descend vertically and rectilinearly in thin concentric plates, whence their name liber (book) ; but in some plants, as the Oalc and Lime, they form a network, the interstices of which are occupied by the medullary rays. From the mode of development of the wood and bark systems, it is obvious that the wood must harden, and the bark decay ; for in all the bark tissues, the later formed are constantly pushing towards the periphery, within which they have been developed ; this produces the exfoliation of the several elements of the cortical sys- tem ; the epidermis first, then the cork-cells, the endophleum, and sometimes the liber. It is not necessary to describe any of those anomalous dicotyledonous stems which present peculiar tissues or hyper-development of certain elements, or the absence of others ; except that of Conifers (Pine, Fir, Larch, Yew, &c.), the wood of which, with the exception of a few tracheae in the medullary sheath, is entirely com- posed of regularly dotted fibres.. The walls of these wood-fibres (fig. 687) are hollowed into small cups, like watch-glasses, which are arranged in two straight lines, occupying the opposite sides of each fibre. These cups are so placed in con- tiguity that their concavities correspond (fig. 688), leaving an interposed lens-like FUNDAMENTAL ORGANS. 127 space. The dot is placed in the centre of each cup (and corresponds to a thinned portion resulting from the absence of the inner membranes) ; from this thin portion there proceeds, on the convexity of each cup, a short canal, with only one opening-, which leads into the interior of the fibre. The lens-shaped cavity arising- from the contact of two fibres is usually filled with resin (i turpentine ), which infiltrates into the cavity of the fibres and destroys them by degrees; the result is those resinous deposits which are often found G88. Pine. Vertical section of the stem (mag.), p. f, 687. Pine, fibre wall ; c. 1, lenticular cavity ; r. in, Punctate fibre medullary ray ; c. f, cavity in a fibre. (mag.). 689. Pine. Horizontal slice showing the development of two woody bundles in a three-year-old branch (mag.). Stems of Monocotyledons. — When the monocotyledon ous embryo, which is entirely cellular before germination, begins to elongate, fibro-vascular bundles form in its stem. These are at first arranged in a ring as in young dicotyledons ; but soon, as the leaves develop, the bundles multiply without any apparent order in the cellular tissue, becoming more Horizontal slice of the stem . numerous and close as they approach the circumference of the stem. If a fully developed bundle be examined under the microscope (fig. 690), it is found to be structurally identical with that of a dicotyledon ; beginning from the central pith, we find walled fibres analogous to liber (l), then tracheae (t), then, mixed with cells (p), some of which elongate and thicken into fibres, are seen the openings of rayed or dotted vessels (v) : the circumference of the bundle is formed of tliick- walled fibres {liber, l), outside of and amongst which the laticiferous vessels ramify (v.l). But, though individual bundles resemble those of a first year’s dicotyledonous stem, when taken all together they pre- sent a very important difference (fig. 691), in not being grouped in concentric zones but 690. Transverse section of a fibro- vascular bundle of a monocoty- ledonous stem (mag.). (The part answering to the centre of the stem is lowest.) 128 ANATOMY. (p) remaining isolated and scattered through the medullary system (m) without anv medullary rays of muriform tissue. Here there is no symmetrical arrangement ; the bundles are scattered throughout the pith, and may multiply without being impeded by lateral pressure ; further, each remains simple ; at no period does it develop between its bark and wood systems a layer of cambium destined to form new bundles. In dicotyledons, on the contrary, the bundles arc pressed into zones from the first year, and their wood and bark systems being concentric, they can only multiply by fresh wood and bark bundles being formed between them. The consequence of this arrangement of the fibro-vascular bundles is, that in dicotyledons the stem is hardest towards the centre, whilst in monocotyledons the stem is hardest towards the circum- ference ; as is very apparent in the woody (fig. 692), and even in the herbaceous stems of monocotyledons. In a longitudinal section of a woody (fig. 693) or herbaceous (fig. 694) monocotyledonous stem, those differences are still more apparent ; starting from the insertion of a leaf, each bundle descends at first obliquely inwards, then vertically, then again obliquely outwards ; cros- sing in its path all the bundles which have origi- nated below it, and are hence older than itself, and ending by taking up a position outside of them all. In dicotyledons also, the youngest bundles are the outermost, those of the same age follow nearly parallel ; but Avhereas in their courses they unite so as to form a cylinder, in monocotyledons they diverge below and converge above. The composition of mono- cotyledonous bundles also differs in different parts of their course, the wood system predominating over the cortical in the upper part, where it descends obliquely inwards, the cortical system predominating in the lower part, where it descends obliquely outwards, and finally the cortical system alone being developed where the bundle reaches the periphery. Here the bundle becomes more slender, and divides into thread-like branches, which interlace with those of the neighbouring bundles, and form together, within the cellular periphery, a layer of fibres comparable, according to many botanists, with a liber zone. It is obvious that these fibro-vascular bundles, being composed of different elements at different heights, and becoming so slender towards the periphery, must appear very dissimilar in a horizontal cut of the stem ; the scattered small bundles with large vessels, which occupy the middle of the stem, are the upper portions of bundles in which that which we have called the wood system (though it is rather G93. Theoretical section of a Palm stem. <194. Iris. Stem cut vertically. FUNDAMENTAL ORGANS. 129 cellular and vascular than fibrous) predominates. The coloured and dense bundles, which form a more solid zone towards the periphery, are the lower portions of bundles in which fibres analogous to liber predominate ; and, finally, the less compressed bundles which are usually seen outside of the coloured zone are these same fibres after having branched and spread out, and before being lost in the periphery, which is a cellular zone representing the baric. A monocotyledonous stem usually retains about the same diameter throughout. Tlxis is because the fibro-vascular bundles, gradually attenuated towards their lower extremity, do not, as in dicotyledons, unite and descend to the bottom of the stem ; hence, any two truncheons of a monocotyledonous stem, being equally rich in bundles, can differ but little in diameter. Root. — In the embryo, the radicle is the simple cellular lower end of the caulicle, which elongates downwards as the latter ascends with its plumule and cotyledons. A monocotyledonous seed usually presents several radicles (fig. 642) ; these are not, however, naked like those of dicotyledons, but are originally enveloped in an outer layer (serving as bark), which they push forward and pierce, emerging from it as from a sheath; whence the name of coleorhiza for this organ (fig. 642). Examples have been given of stems emitting accessory or adventitious roots from various parts of their surface ; the structure of these is precisely the same as that of the radicle ; and they may even be regarded as identical, the radicle being con- sidered as a production of the caulicle, and all roots, whether primary or secondary, as adventitious. In its earliest stage the root presents an axis of densely packed cells ; the central of these elongate and form vessels which interlace with those of the stem (fig. 695). The root may be simple or branched, but its branches do not start from the axil of a leaf, and are not regularly arranged, like the shoots of the ascending axis. They terminate in fibrils, together called root-fibres, which decay, and are replaced by fresh ones which usually spring from near the base of the youngest branch. Like the stem, the root-branches and fibres are clothed with an epidermis or cuticle, except at the tips, which some botanists call spongioles (sp). The root elongates at the tips of its branches, but not of its root-fibres, which are caducous ; and as the fresh cells of the root-branches are at first deprived of epidermis, it is supposed that roots absorb moisture from the soil by these, as well as by their root-fibres. The fibrous and vascular tissues of roots are the same as those of stems, but no tracheae are ever found in them ; the cells are distended with juice or filled with fecula ( Orchis , fig. 695). In dicotyledons, the root is distinguished from the stem by the absence of pith and medullary sheath, and by its axis being occupied by woody fibres ; there is scarcely an exception to this. Its diameter increases, like that of the stem, by the annual 695. Orchis. Vertical section of a rootlet, much enlarged. The cells (c,c) become gradually organ- ized into punctate fibres (»r) and vessels ; those at the bottom, more recently formed, constitute the spongiole (SP). ANATOMY. 160 formation of two concentric zones between the wood and bark ; it elongates at its extremity only, while the stem and its branches elongate throughout their length ; this may easily be proved by marking off an inch of a root and an inch of a stem. Monocotyledons, instead of having a tap-root (i.e. one main axis which branches), rising from the neck. Their anatomical structure is exactly similar to that of stems. Leaves. — The anatomical structure of leaves is the same as that of the stem ; they consist of a fibro- vascular bundle and parenchyma; this bundle, which is wholly formed before leaving the stem, spreads into a blade as it emerges ( sessile leaf), or remains undivided for a certain distance before expanding ( petiolate leaf) ; the nerves of the blade are formed of fibres and vessels ; both it and the petiole are covered with a layer of epidermis bearing stomata on every part except the nerves and petiole. The petiole, before expanding, often forms a sheath or stipules ; the contact are contracted ; they are hence not solidly united at the point of emergence ; and it is this defective cohesion which causes the fall of most leaves. The stem presents a little swelling at the base of the petiole, called the cushion (c), which is visible after the disconnection of the petiole (fig. 54), together with the scar (f) left by the petiole. The relative position of the elements of the fibro-vascular bundle which passes from the stem into the leaf, shows clearly that the leaf-blade may be compared to a flattened stem, the fibres and vessels of which have been spread out, and thus allowed plenty of room for the development of parenchyma between their ramifications. As in the stem the fibro-vascular bundle consists of trachete in the centre, then rayed or dotted vessels and woody fibres, and on the outside laticiferous vessels and thick-walled liber-fibres, so in the leaf- blade each nerve (which is a partial bundle) presents tracheae on its upper surface, rayed or dotted vessels with woody fibre on its lower surface, and laticiferous usually emit compound roots, i.e. composed of simple or slightly branched bundles, sheath exists when the partial bundles of which it is composed separate from >8 each other, but without P.S -111 gy diverging; the stipules are ^ i the result of the diverg- L £ ence of the lateral bundles of the petiole.1 Where the fibro-vas- P. i cular bundle (fig. 696, fv) leaves the stem to form e.;. 696. Branch cut vertically, showing the petiole spring- ing from the stem (mag.). ] the petiole (f), the fibres M composing it are shortened, G97. Melon. This theory of the origin and development of stipules requires considerable modification. — Ed. FUNDAMENTAL ORGANS. 131 vessels and liber-fibres. The lower surface of the leaf, which corresponds to the cortical system, is generally more hairy and presents more stomata than the upper, which corresponds to the wood system. The parenchyma of the leaf, filled with green chlorophyll, usually presents (fig. 697 ), in flat leaves, two well-marked divisions ; the upper, belonging to the woody system, consists of one or more series of oblong cells (p.s), arranged perpendicularly side by side beneath the epidermis (e.s), leaving very small interspaces (m) ; the lower division, belonging to the cortical system, consists of irregular cells (p.i), with interspaces (l) corresponding with the stomata. The parenchyma of fleshy leaves (as Sedum) consists of cells with few interspaces, which cells become poorer in chlorophyll towards the centre of the leaf. Submerged leaves (fig. 698) have no epidermis, stomata, fibres, or vessels ; their parenchyma is reduced to elongated cells, arranged in few series, and is consequently very permeable by water. The leaf originates as a small cellular tumour, which afterwards dilates into a blade, the cells on the median line of which elongate and form fibres, then, as in the stem, first tracheae, and lastly other vessels. In his treatise £ On the Formation of Leaves,’ Trecul admits four principal types according to which these organs are formed : the basifuqal, basipetal, mixed, and parallel. J- ’ * ’ * 61)8. Potamogeton. Ill the basifuqal, the leaf is developed from Section perpendicular to the surface of a leaf (mag.;. J J x r, parenchyma without epidermis ; v, interstices. below upwards, i.e. the oldest parts are those at the base of the leaf, and the tip is the last part formed ; the stipules appear before the leaflets and secondary nerves of the leaf. In the basipetal type, the rachis or axis of the leaf appears first, and on its sides the lobes and leaflets spring from above downwards ; the tip is hence developed before the base. The stipules are developed before the lowest leaflets, and sometimes even before the upper. In this type, not only the leaflets, but their secondary nerves and teeth, appear in succession downwards. In the mixed arrangement, both these types are followed. In the parallel type the nerves are all formed in parallel lines, but the sheath appears first. The elongation of the leaf takes place at the base of the blade, or base of tlie petiole. The sheath, although the first formed, does not increase till the leaf has developed to a certain extent. The nerves of leaves are arranged very differently in monocotyledons and dicoty- ledons. In the former (fig. 33), they are usually simple, or, if branched, the branches do not inosculate. In dicotyledons, on the contrary (fig. 6), the nerves branch into veins and vemdes, which inosculate with those of the neighbouring nerves, and form a fibro-vascular network of which the interstices are filled with parenchyma. Nevertheless, in some monocotyledons, the basal nerves are not all parallel and simple ; but secondax-y nerves spring from one or more of the principal nerves, and diverge in other dix-ections ; but these secondax-y nerves are parallel, and the coxx- vexity of the arc which they describe is tuxmed towax-ds the prixxcipal xxex-ve (this nervation is rax*e among dicotyledons) ; lastly, the xxerves ixx xn-oxxocotyledons may 132 ANATOMY. anastomose into a network, and the blade, instead of being entire, as is usual in this class, may be lobed [Arum). On the other hand, some dicotyledons occur with parallel and simple nerves ; but these exceptions do not invalidate the general rule indicated above. In all cases of determining the class of a plant, the examination of the nerves must be supplemented by that of the fibro-vascular bundles of the stem, which are symmetrically arranged in dicotyledons (fig. 685) ; and dispersed without order, though more closely packed towards the circumference, in monocoty- ledons (fig. 691). Buds. — The bud (fig. 696, b) appears at first under the bark as a cellular point continuous with the extremity of a medullary ray ; it soon pushes through the bark, and forms a tumour on the stem, when its cellular tissue becomes organized into fibres and vessels communicating with those of the stem ; the medullary sheath, however, of the young branch is closed at first, and does not communicate with the medullary ray of the axis from which it emanates. Sepals. — The anatomical structure of these organs completes the analogy between them and leaves. The nerves of the sepals are bundles of tracheae and fibres, parenchyma is spread out between them, and their surfaces are covered by an epidermis, of which the upper presents more stomata than the lower. As with the leaves, the nerves of the sepals are usually parallel and simple in monocotyledons, branched and anastomosing in dicotyledons. The sepals first appear as small cellular papillae, connected at the base by an annular disk referable to the recep- tacle; their tips are free in both the monosepalous and polysepalous calyx; it is only later that the calycinal tube appears. Vascular bundles are gradually formed in the sepals as in the leaves. Petals. — The corolline leaves have often, like ordinary leaves, a petiole, which is called the claw. When this is present, the fibro-vascular bundles traverse its entire length, and only separate to form the nerves of the blade ; these nerves, usually dichotomous, are composed of tracheae and elongated cells ; the parenchyma which fills their interstices is formed of a few layers of cells, covered by an epidermis presenting very few stomata on the upper surface only, or none at all. Very young petals, like sepals, appear as cellular papillae ; but in petals these soon dilate, and form dark or light- green disks, which at a later period always change colour. Although the petals are placed below the stamens on the floral axis, they generally expand later, as if they had been developed later, which is not the case. In a monopetalous corolla, the torus is raised above its ordinary level so as to form a little circular cushion which connects the leaves to which it gave birth, and the segments of the corolla appear as projections upon this cushion. Finally, whether the corolla be monopetalous or polypetalous, its petals are developed like ordinary leaves ; the tip and base are first formed, and the develop- ment takes place towards the central veins from below upwards, from above down- wards, and laterally. Stamens.— The complete stamen consists of filament, connective, anther, and pollen : FUNDAMENTAL ORGANS. 133 let us examine tlieir structure in the adult, and their mode of development in the young stamen. The filament consists of a central bundle of tracheae which traverses its length, of a layer of cells enveloping this bundle, and of a thin superficial epidermis. The connective, which is the continuation of the filament, is formed of cells of the con- sistence of glandular tissue, in which the bundle of tracheae terminates. The anther is usually divided into two cavities, separated by the connective, and containing the pollen. The walls of these cells consist of an outer or epidermal layer of cells (fig. 699, ce) with many stomata, and of an inner simple or multiple layer of fibrous (e), annular, spiral, or ce reticulated cells ; this layer becomes thinner as it approaches the line of dehiscence of the anther, where it ends. At the period of dehis- Remains of the'fibrous cence the outer membrane of these cells is destroyed, and the little dermis of the anther netted, ringed, or spiral bands which lined it alone enclose the pollen, a little below the top of the nucleus. The latter soon withers, and the embryonic sac, which alone grows, forms the integument of the seed. 158 VEGETABLE PHYSIOLOGY. After fertilization flowers rapidly lose tlieir freshness ; the corolla and stamens wither and fall ; the style dries up, together with the conducting tissue which filled it, and that portion of this tissue which abutted on the ovule disappears. Soon the ovax-y, receiving the nourishment which was previously distributed to other parts of the flower, increases, as do the ovules ; many of these become ai’rested by the overwhelming development of the others, and the number arrested is often constant ; sometimes also the septa disappear. Finally, the fertilized pistil becomes more or less modified in form, volume, and consistency. Maturation. — This marks the period when the changes which take place in the fruit, fi'om fertilization till the dispersion of the seed, are completed. Those fruits which remain foliaceous continue, like the leaves, to decompose carbonic acid and disengage oxygen by day, whilst by night they absorb oxygen and disengage carbonic acid. At maturity their tissue dries, their colour changes, their fibro- vascular bundles separate, and dehiscence takes place. Those fruits which lose their foliaceous consistency and become fleshy respire like the preceding until maturity ; then the parenchyma is fully developed, its watery contents are decomposed, and fixed in new combiixations ; the cellulose loses some of its carbon and hydrogen, and becomes starch ; and the latter, by the addition of water, is changed into sugar. Vegetable acids are the equivalents of starch and oxygen ; to change these acids into sugar, all that is necessary is either that the carbon assimilated by the plant shall take up their oxygen, or that water shall be formed at the expense of the latter. In most fruits these acids are not entirely converted into sugar, but enter into combination with alkaline bases, thus modifying their acid flavour. The proportions of acid and sugar wary according to the nature of the fruit. When maturation is complete, the fruit disengages carbonic acid formed at the expense of the sugar, and the latter gradually disappears ; but the decomposing fruit, by disengaging cai’bonic acid around it, materially coixtributes to the nourish- ment of the young seed. At complete maturity the fruit- bi’eaks up, and the seed thereupon commences an independent existence. Dissemination is the act by which the ripe seeds are scattered over the surface of the earth. In capsular fruits the seeds are freed by the dehiscence of the carpels ; in fleshy fruits they are retained longer. Nature has infinitely varied the methods tending to disseminate seeds : wiixd, water, and frugivorous animals are the principal agents ; and man himself assists, often unwittingly, by his labours or voyages, in the transport and multiplication of seeds. Germination. — The agents in germination are water, air, heat, and darkness. Seeds buried for many centuries 1 in dry soil, preserved from the air and from variations of atmospheric temperature, have been known to germinate and reproduce their species, when placed under favourable conditions. Water softens the integuments, penetrates the tissue of the seed, and is The statements supposed to prove this are not generally trustworthy.-— Ed. PHENOMENA OF REPRODUCTION. 159 decomposed ; its liydrogen is absorbed ; its oxygen, like that of the air, combines with the carbon of the seed to form carbonic acid, which is set free. Heat is indispensable to germination ; and in the series of phenomena which accompany this process, it acts alternately as cause and etfect, for a seed is the theatre of chemical combinations. Light retards germination, by causing the decomposition of carbonie acid, and hence preventing the formation of this gas. Under a combination of favourable circumstances, the seed absorbs water, together with the oxygen of the air ; the albumen, under the chemical action of these agents, loses a portion of its carbon, and at the same time combines with the elements of water ; it soon changes into a saccharine, milky, soluble matter, fit to be absorbed by the embryo ; if the albumen has been absorbed previous to germination, the cotyledons enlarge and nourish the plumule. When the latter has emerged from the ground and become green, the phenomena are reversed ; the young plant, instead of absorbing oxygen to combine with its carbon, and disengaging carbonic acid, absorbs carbonic acid, separates the carbon, and assimilates it. TAXONOMY. Taxonomy is tlie part of Botany which treats of classification ; i.e. the methodical distribution of plants in groups, named Classes, Families (or Orders), Genera, and Species. All the individuals or separate beings of the Vegetable Kingdom which resemble each other as much as they resemble their parents and their posterity, form collectively a species. All the species which resemble each other, although differing in certain charac- ters which become the distinctive sign of each, form collectively a genus, which takes the name of the principal species.1 Thus, the Cabbage, the Txirnip, the Colza, the Radish, are species of the same genus, which has received the name of Cabbage. As a necessary consequence, each plant belonging to a genus and to a species has received two names, that of the genus and that of the species, i.e. the generic and specific name, and we say the Drum-head Cabbage, the Turnip Cabbage, the Colza Cabbage , the Radish Cabbage. All the genera which resemble each other form collectively a family (or order ) ; thus, the genus Cabbage, the genus Stock, the genus Tldaspi , the genus Cochlearia, belong to the same family, namely that of Crucifcrce. Those families which are allied are united into classes', and thus all the species composing the Vegetable Kingdom are classified. But the species itself may be subdivided : individuals of the same species may be placed under different conditions ; one may vegetate on a barren rock, another in a swamp ; this will be shaded, that torn by the wind ; man himself may intentionally create such differences, and combine them according to his wants. The vegetable under these diverse influences will finally undergo changes in its sensible qualities, such as size of root ; the size, consistency, and duration of stem ; the form, colour, and scent of its floral whorls, the taste of its fruit, &c. But these changes, however con- siderable, will not destroy the primitive character of the species, which will always be discoverable throughout its modifications. A collection of individuals of the same species which have undergone such modifications bears the name of variety. The characters of a variety, depending on accidental causes, are never constant ; as soon as the influencing cause ceases, the change ceases, and the primitive species reappears in its original form. The cultivated Cabbage is an example, of which six This holds only in a limited sense. — Ed. TAXONOMY. 161 varieties are known in France : — 1. the Wild Cabbage, which is the primitive type of the species ; 2. the Common Kale, with a long stem and spreading leaves ; 3. the Scotch Kale, of which the leaves are almost in a head when young, then spreading and wrinkled ; 4. the Drumhead Cabbage, of which the stem is short, the leaves green or red, concave, and gathered into a head before flowering ; 5. the Kohl- rabi, the stem of which is swollen and globular below the insertion of the leaves ; 6. the Cauliflower, of which the floral branches are gathered closely together before flowering ; the sap enters this inflorescence exclusively, and transforms it into a thick, succulent, and granular mass, which furnishes an excellent food. Such are modifications induced by cultivation ; they are wholly due to the excessive deve- lopment of the parenchyma, which accumulates, sometimes in the leaves ( Drum- head Cabbage), sometimes only at the edge of these leaves ( Scotch Kale), sometimes at the base of the stem ( Kohl-rabi ), and sometimes in the peduncles or floral branches ( Cauliflower ) . The seed does not preserve the variety ; it always tends to reproduce the primitive type. Nevertheless there are plants of which the varieties are propagated by seed, provided that the conditions which have modified the species be faithfully repeated ; such are the Cereals, which form, not varieties, but races, the original type of which is lost. The older classifiers arranged plants according to their properties or habitats ; others on characters drawn from the stem, roots, leaves, or hairs. It was at last per- ceived that the flower, containing the seed which was to perpetuate the species, and composed of leaves of which the form, colour, number, and connection notably differ in each genus and species, is the part of the plant which ought to furnish the best characters for classification. Hence the flower furnishes the basis of the systems of Tournefort and Linnceus, the method of A. L. de Jussieu, and that of A. P. de Candolle, which is a slightly modified arrangement of De Jussieu’s. Tournefort established his system on the consistency of the stem, on the presence or absence of a corolla (and he considered every floral envelope which is not green as a corolla), on the isolation or the contrai’y of the flowers, and on the shape of the petals. This method, which appeared in 1693, and comprised 10,000 species, beiug based on the most prominent part of the plant, was intelligible and easy of application, and was once universally accepted ; but as the knowledge of species increased, many were found that would not fall into any of its classes, and it was hence abandoned. The system of Linnams, which appeared forty years after that of Tournefort, was received with an enthusiasm which still exists, especially in Germany. He took as the base of his twenty-four classes the characters furnished by the stamens in their relations to each other and to the pistil. STAMENS AND PISTIL. 1G2 TAXONOMY, ' monopetalous J egular petaloid m « £ O ' of herbs ■ and shrubs of trees , I irregular regular irregular TABLE OE THE ARTIFICIAL METHOD OF TOURNEFORT Classes Campaniform . . Infundibuliform Personate . . Labiate . . . Cruciform . . 'simple | q Rosaceous . . 7 Umbelliferous 8 Caryopuyllaceous polypetalous . -j [ 9 Liliaceous. . 10 Papilionaceous 11 Anomalous 1 2 Flosculous ^composite J 13 Semi-flosculous 14 Radiate . . . 15 Staminiferous l^apetalous .(16 Flowerless . 1 7 Flower- and fruit-less 18 Apetalous . . 19 Amentaceous . 20 Monopetalous 21 Rosaceous . . 22 Papilionaceous | monopetalous { polypetalous regular . irregular . Examples Belladonna. Bindweed. Snapdragon. Sage. Stock. Strawberry. Carrot. Pink. Tulip. Pea. Violet. Thistle. Dandelion. Easter Daisy. Oats. Perns. Fungi. Laurel. Willow. Elder. Cherry. Bobinia. KEY TO THE LINNLEAN SYSTEM. f free and equal ' visible in the same flower in different - dowers stamens not adhering to the pistil 1 stamen . 2 stamens 3 „ . I invisible ■i „ 5 „ 6 „ 7 „ 8 „ 0 „ 10 „ 11 to 19 stamens .... 20 or more, on the calyx . . 20 or more, on the receptacle free and ( 2 long and 2 short .... unequal [ 4 „ „ 2 „ .... f in one . united by their dlaments . . - in two . ( in many united by their anthers in a cylinder . stamens adhering to the pistil male and female dowers on the same plant . . male and female dowers on different plants . . dowers with stamens or pistils, or both, on one or many plants Li Classes Examples 1 Monandria . . Centranthus. 2 Diandria . . Veronica. 3 Triandria . . Iris. 4 Tetrandria Plantain. 5 Pentandria . Periwinkle. 6 IIexandria . . Lily. 7 Heptandria . Ilorse-chestnut. 8 Oc'TANDRIA . . Epilobium. 9 Enneandria . Laurel. 10 Decandria . . Pink. 11 Dodecandria . House-leek. 12 ICOSANDRIA . . Strawberrt/. 13 POLYANDRIA . Ranunculus. 14 Didynamia . . Snapdragon. 15 Tetradynamia Stock. 1G Monadelphia . Mallow. 17 Diadelphia Pea. 18 Polyadelphia St.John s Wort. 19 Syngenesia Cornflower. 20 Gynandria . . Orchis. 21 Moncecia . . Arum. 22 Dkecia . . . Nettle. 23 Polygamia . . Parietaria. 24 Cryptogamia . Fern. TAXONOMY. 1G3 The first thirteen of the Linnsean classes are divided into orders founded on the number of ovaries or free styles composing- the pistil. In monogynia the pistil is formed of a single carpel, or of several carpels united into one by their ovaries and stvles ; in digynia there are two distinct ovaries or styles ; in trigynia three ; in tetra- qynia four ; in pentagynia five ; in hexagynia six ; in polygynia any number above ten. The 1 4th class contains two orders : gymnospermia, in which the pistil is composed of four lobes simulating naked seeds ; angiospermia, in which the seeds are enclosed in a capsule. The 15tli class is said to be siliquose or siliculose, according as the fruit is or is not three times longer than broad. The 1 Gth, 17th, 18tli, 20tli, 21st, and 22nd classes have their orders founded on the number and connection of the stamens and styles ( triandria , pentandria, polyandria, monogynia, polygynia, monadelphia, &c.). The 19th class is divided into polygamia ccquales, in which all the centre flowers of the capitulum have stamens and pistils, and those of the circumference have pistils and are fertile ; polygamia frustranea, where the flowers of the circumference are female and sterile; polygamia neeessaria, where the flowers of the centre are male, and those of the circumference female and fertile, &c. The 23rd class is divided into monoecious, dioecious, tricecious. The 24th class is divided into Ferns, Mosses, Alga, and Fungi. A complete classification ought to satisfy two conditions : the first that of enabling one quickly to ascertain the name given by botanists to a plant, and to sepa- rate it from the rest of the Vegetable Kingdom by differential characters, as salient as possible. This object ought to be fulfilled by the system, which should be a true alphabetical dictionary, facilitating research; and its divisions ought, therefore, to be established on the most apparent characters, however bizarre and dissimilar they may be. From this point of view the Linnsean classification is a chef d' oeuvre which will perhaps never be surpassed, in spite of the inconveniences resulting from the not very numerous difficulties to be overcome in applying it. Dichotomous keys are systems which consist in placing before the student a series of questions wherein the choice lies between two contradictory propositions, in such a manner that, the one being- granted, the other must be necessarily rejected. The second condition is that of placing each species and genus amongst those with which it agrees in the most essential points of resemblance : if this object be fulfilled, the method becomes a true science, its divisions being founded on the most important organs, without regard to their number, or to the difficulty of observing them. System enables us to discover the name of an individual from its description ; method enables us to ascertain its position in the Vegetable Kingdom ; — method is hence the complement of system. The affinities which should form the basis of every natural method were first established by A. L. de Jussieu. Before him, Magnol, of Montpellier, had introduced into Botany families of which the arrangement was founded on the structure of the calyx and corolla; Rivin had published a classification based on the form Yf the corolla, on tin' number of the seeds, on the form, consistency, and cells of the fruit ; Ray had classed upwards of 18,000 species, which he divided according to the number of cotyledons, the separation or aggregation of the flowers, the presence 164 TAXONOMY. or absence of the corolla, the consistency of tbe fruit, and tlie adhesion or not of the ovary with the receptacular tube. The problem of a classification by natural affinities had thus been long propounded ; it was solved by A. L. de Jussieu, who discovered the grand principle of the relative value of characters. In a Memoir on Ranunculaceoe, he enunciated and developed the relative and subordinate importance of the different organs of a plant ; this was followed by his great work on the Families and Genera of the Vegetable Kingdom ; and the clear principle of tbe subordination of characters, which had guided him in his labouis, thei'eupon threw great light on all other branches of Natural History. TABLE OF THE NATURAL METHOD OF A. L. DE JUSSIEU. Acotyledons w f Monocotyledons - ^ Apetalous flower. o Monopetalous flower. Stamens inserted on the receptacle „ „ calyx „ „ ovary „ „ ovary „ „ calyx „ „ receptacle Staniiniferous corolla inserted on the receptacle ,, cal\ x ovary L ( Stamens inserted on the ovary ,, „ receptacle „ „ calyx Polypetalous j flower. I Male and female flowers on different plants Classes 1 Acotyledonia . 2 Mono-hypogynia 3 Mono-pekigynia 4 Mono-epigynxa . 5 Epistaminia 6 Peeistaminia 7 Hypostaminia . 8 IIypocokollia . 9 Pericoroleia j Epicorollia ( [ Synantheria (Epicorollia l CORISANTHERIA 12 Epipetalia 13 ITypopetalia 1 4 Peripetalia 15 Diclinia . Examples Fungi. Oats. Iris. Orchis. Aristolochia Fumex. Amaranth. Belladonna. Campanula. j Cornflower. | Elder. Carrot. Ilanuncidus. Strawberry. Fettle. The successors of A. L. de Jussieu have followed in his path, but have differed ns to the relative value of his characters ; and it has further been shown that single characters of great importance may in certain cases be equalled, or even surpassed, by several characters of secondary importance : here quality is replaced by quantity, much as twenty sous are equal to one franc. It may, however, be considered as proved, that the most constant characters should rank the highest : now this constancy'- especially prevails in the reproductive organs, and ' in accordance with the importance of their functions ; therefore the floral organs have been rightly chosen to group species into genera, genera into families (or orders), and these into classes. As regards constancy of characters, the reproductive organs observe the following order: — the number of cotyledons, the cohesion or separation of the petals, the insertion of the stamens, the presence or absence of albumen and its nature, the direction of the radicle, the aestivation, the degree of symmetry in the position, number, and form of the floral whorls, &c. In addition to the preceding synoptical tables, it is well to give the Arrange- ment of A. P. de Candolle, as followed in his ‘ Prodromus of the Vegetable Kingdom ; ’ the Classification of Ad. Brongniart, according to which the Botanical TAXONOMY. 165 School of the Jardin des Plantes in Paris is arranged ; and, finally, the Succession of the Families established by A. de Jussieu, which we have adopted for our £ Flora of Gardens and Fields,’ and which we shall follow in the present work. [In this, the English edition, the system of De Candolle is followed; of which a synopsis will be given at the end of the work. — Ed.] Examples Ranunculus. Strawberry. Belladonna. Nettle. Iris. Ferns. Mosses. Fvnyi. (The Families being enumerated in the description of the Classification of A. de Jussieu, we here confine ourselves to the enumeration of the Classes.) ('IlYl’TOCiAlflM. — Vegetables deprived of stamens, pistil, and even of ovules. Embryo simple, homogeneous, without distinct organs, usually formed of a single vesicle. AMPHIGENS. — No axis or appendicular organs evident; growth peripheric; reproduction by naked spores. Alya, Fungi, Lichens. ACROGENS — Axis and appendicular organs evident ; stems growing at the extremity only, without the addition of fresh portions at the base. Reproduction by spores covered by an integument, but not adhering by a funicle to the walls of the capsules which contain them. Muscinea, FUicinea. PHAKEHOGAIVM. — Reproductive organs evident, formed of stamens, and of ovules, which are either naked or enclosed in an ovary. Embryo compound, cellular, heterogeneous or formed of many distinct parts. Old parts of the living stem increasing by the addition of new tissues. MONOCOTYLEDONS. — Embryo with a single cotyledon. Stem composed of fibro- vascular bundles scattered through the mass of the cellular tissue, not forming a regular circle; the living stem not increasing by distinct concentric zones of wood and bark. 1 Provided with cells and vessels. - The fikro-rascular bundles arranged in concentric layers, with the youngest outside. * The fibro-vaseular bundles arranged without order, the youngest in the centre of the stem. * Deprived of vessels, anil composed only of cells. ARRANGEMENT OF H J3 S A. r. DE CANDOLLE. Classes Exogens.1 2 Endogens.3 ' Polypetalous corolla, and stamens inserted on the receptacle ..... Polypetalous or monopetalous corolla, and stamens inserted on the calyx . Monopetalous staminiferous corolla, inserted on the receptacle ..... A single floral envelope, or similar calyx (. and corolla ...... ( Visible and regular fructification 1 Invisible or irregular „ ... Cellular4 Plants, j Foliaceous expansions .... or Acotyledons. (No foliaceous expansions .... 1 Thalamifloral . 2 Calycifloral 3 CoRQLLIFLORAL 4 Monochlamydeous 5 Phanerogamic 6 Cryptogamic 7 Foliaceous . 8 Aphyllous . CLASSIFICATION OF M. AD. BRONGNIART. 160 TAXONOMY. Albuminous. — Embryo accompanied by albumen. Perianth none, or sepals not resembling petals. Albumen farinaceous. Glwnaceee, Jnnccce, Aroidece. Perianth absent or double, with sepals or petals. Albumen not farinaceous. Pundaneee , Plice- nicece, Lirioideec. Perianth double, the inner or both petal-like. Albumen farinaceous. Bromeliaceee, Scitaminea. Exalbuminous. — Albumen wanting. Orchidcce. Fluviedvs. DICOTYLEDONS.— Embryo with two opposite, or more (and then whorled) cotyledons. Stem witli fibro-vascular bundles forming a cylinder around a central pith, separable into an inner woody zone and an outer bark zone, and increasing by concentric layers. ANGIOSPERMS. — Ovules contained in a closed ovary, and fertilized through the medium of a stigma. Gamopetalovs. —Petals united. Perigyxous. — Stamens and corolla inserted on the calyx. Ovary inferior. Campunulacece, Asteroidece, Ltmicerinece, Coffeineee ( Rubiaceee ). IIypog ynotjs. — Stamens and corolla inserted below the ovary. ANISOGYNOUS. — Pistil composed of a less number of car-pels than there are sepals. Isostemonous. — Number of stamens equal to the divisions of the corolla, .and alter- nating with them. Asclepiadeee , Convolvidacece, Asperifoliece, Solaneee. Anisostemonous. — Stamens partly abortive, four didynamous, or two. Pcrsonedee Selag in ere, Vei • ben acete. 1SOGYNOUS. — Pistil usually composed of a number of carpels equal to the sepals. Primu- laceee, Ericoideec, IHospyros. Dia LfPETALOVS. — Petals free or absent. II ypogynoits.— Stamens and petals independent of the calyx, inserted below the ovary. perfect flowers, having petals, in most of the genera of each class. Calyx usually persistent after flowering. Poly stemonous. — Stamens usually' indefinite in number. Guttiferte, Malvacccr. Oligostemonous. — Stamens usually definite in number. Crotonineee , Poly galea, Geraniaceee, Terebinl/iaceee, Hesperideee, /Escidineee, C'elastrineee, Violacece. Calyx falling, during or after flowering. Albumen absent, or very thin. Cruciferte. Albumen thick, fleshy or horny. Papaveraceer, Berberidea), Magnoliaceee, Rantm- culacece. Albumen double, the outer farinaceous. Nymphccacece. imperfect flowers. — Corolla always absent. Piperacea , Urticeee, Polygoneee. Perigyxous. — Stamens and petals inserted on the calyx, Cyclospermous.— Embryo bent around a farinaceous albumen. Caryophyllacea, Cactaceee. Perispermous. — Embryo straight, in the axis of a fleshy or horny albumen. Cramdacea ’, Saxifrages, Passifloreee, Hamamelideee , Umbelliferee, Santa/aceee, Asarineee. Aperispermous. — Albumen wanting or scanty'. Cncurbitacece, OF.notheree, Daphnacccc, Proteaceee, Rliamnuceee, Myrtacece, Rosacea, Leguminoscc, Amentaceai. GYMNOSPERMS. — Ovules naked, that is to say, not contained in a closed ovary and sin-mounted bv a stigma, but directly receiving the influence of the pollen. Conferee , Cycadecc. TAXONOMY. 167 SUCCESSION OF FAMILIES. ACCORDING TO THE CLASSIFICATION OF A. DE JUSSIEU. CRYPTOGAMS or ACOTYLEDONS. CELLULAR. Angiospores. (Spores enclosed in the mother-cell, which persists, under the name of theca). Alya, Characere, Fungi, Lichens. Gymnospores. (Spores become, by the absorption of the mother- cell, free in a common cavity). Ilepaticce, Mosses, VASCULAR. Lycopodiaccer, Isoetre, Equisetacere , Ferns, Salvini- aceee , Marsileaceee. MONOCOTYLEDONOUS PHANEROGAMS. Aquatic and Exalruminous. Naiadere, Pot ameer, Zosteracea, Juncagineee, Alis- maceee, Butomnceee, Ilydrocharidece. Albuminous. Spadicifloral. (Flowers in a spadix). Lemnaceee, Aroideec, Typhacea, Palmacete. Glumaceous. (Perianth absent, replaced by bracts). Graminere, Cyperaceee. Enantioblaste.e. (Radicle antipodal to the hilum). Eriocaulonece, Commehjnecp. IIomoblaste.E. (Radicle facing the hilum). Superovarian. (Ovary free). Juncear, Ponte- dcriacecr , Aphyllanthece, Ldiaceee, Asparagi- neer, Melanthacece. Inferovarian. (Ovary adherent). Dioscorcer, Irideee, Amaryllidece , Hypoxidere, Iletna- doraeeee, Bromeliaccex, Musaeeer, Cannece. Aschidoblaste.k. (Embryo undivided). Orel idea. DICOTYLEDONOUS PHANEROGAMS. G YMN 0 SPERMS. Cycadece, Abietinece, Cupressineee, Taxinece, Gnetaceec. ANGIOSPERMS. DICLINOUS. Peneantheje. (Incomplete flowers, that is to say, with one or no perianth). Casuarinere, Myricecc, Betulineee, Cupuliferee, Juglandece, Salicinece, Balsamiferce, Platanece, Morece, Celtidecc, TJl- rnacece , Urticece, Cannabineee, Cynocrambeec, Ceratophylleec, Saurureee. Plousiantheje. (Flowers with a double perianth). Ovules 1-2, axile. Euphorbiaceee, Empetraceee. Ovules numerous, parietal. Datisceee, Begoni- acccc, Cucurbitaceee, Nepenthece. Rhizanthe.e. (Parasites on the roots of other plants). Balanophorece, Cytineee. ? APETALOUS. (Flowers with stamens and pistils, and 1 perianth.) Gitiandrous. (Stamens united to the pistil.) Asarinece. Perigynous. Gant ala cere, Lor antlia cere, Proteaccre, Eleaynere, Thymeleee , Laurineee. Cyclosperme.e. (Embryo annular). Polygonere, Phytolaccece, Kyctaginere, Amarantacere, Cheno- podiacere , Teiragoniacece. $ POLYPETALOUS. Cyct.osperjie.e. Portulacere, Paronychieee, Silencer Alsinere , Elatineee. Hypogynous. PLEUROsrERMERL (Placentation parietal). Fran- heniaceev, Tamariscinece, Violariece, Cistinerc, Resedacere, Capparideee, Cruciferce , Futnariaceee, Papaveracees, Sarraceniere. I) ro sera cere, Par- nassians. CHLAMYDOBLASTEiE. (Embryo enveloped in the embryonic sac, which is thickened into an in- ternal albumen). Xymphecacece, Nelumbiecc. 168 TAXONOMY. Axosfermoits. (Placentation axile). Dilleniacea t, Magnoliacea, Anonacea, Schizandrea, Berberi- dea, Lardizabalece, Menispermacea, Coriariea, Xantlioxyha, Diosmea, Rutacea, Zygopliyllea , Oxalidea , Li neat, Limnanthece, Tropaolea, Ra- nunculacece, Balsaminea, Geraniacea, Malvacea, Sterculiacea, Byttneriacca, Tiliacea, Camelli- cicece, Hypericinea, Polygala, Sapindacca, Ilip- pocastanea, Acerinea, Malpighiacea, Mcliacece, Hcsperidece. Perigynous. Exalbuminotjs Axosperms. (Seeds axile, -with- out albumen). Terebinthacea, Papilionacem, Casalpinea, Mimosa, Amy dale at, Spireacea, Dryadcat, Sanguisorba, Rosacea, Pomaceat, Caly- canthea, Granatea, Myrtacea, Lyth rariea, Me- lastomacea, Hippurideat, Callitrichinea, Trapea, Haloragea, Onagrariea. Pleurospkrme.e. Loasea, Passiflora , Ribcsiea, Cactacea, Mesembryanthea. Albuminous Axosperms. (Seeds axile, provided ■with albumen). Crasmlace.at, Francoacea, Sa.ri- fragea, Hydrangea, Cunoniacea, Escalloniea, Brexiacea, Philadelpldea, Hamamelidea , Cornea , Garryacea , Gvnneraceat , Araliacea, TJmbellifera. Peri-Jiypogynous. (Insertion perigynous or hypogynons, often ambiguous.) Bhamnea , Ampelidea, Celastrinea, Staphyleacea, Pittosj)o?-ea. $ MONOPETALOUS. Semi-monopetalous. (Petals free in some). Ericacete, Rhodoracea, Vaccinea, Diapensiea, Epa- cridea, Pyrolacea, Monotropea, Styracea, Jas- mvnea, Oleinea, Ilicinea, Ebenacea, Myrsinea, Prinmlacea, Plumbaginea, P/antaginea. Eu-monopetalotjs. (Corolla always clearly monopetalous and stamniferous). Hypogynons. Anisandrous. (Stamens 4, dissimilar, or 2 by abortion). Utriculariea, Globidunea, Selaginea, Myoporinea, Slilbinea, Verbenacea, Labiatcc, Acantliacea, Sesamea, Bignoniacea, Cyrtandra- cea, Gesneriacea, Orobanchea, Personata. Isandrous. (Stamens similar, in number equal to the divisions of the corolla). Solanea, Cestrinea, Nolanea, Borraginea, Cordiacea, Ilydrophyllea, Hydroleacea, Polemoniacea, Dichondrea, Cus- cuta, Convolvulacea, Gentianea, Asclepiadea , Apocynea, Dcsfontainea, Loganiacea. Perigynous. Rubiacea, Capri/oliacea, Valerianea, Eipsacea, Campanulacea, Lobeliacea, Goodettuacea Bru- noniacea, Stylidiea, Composita. ATLAS OF BOTANY. SECOND PART. ILLUSTRATIONS AND DESCRIPTIONS OF FAMILIES. I. RAMJNCULACEsE. (Ranunculace.e, Jussieu. — P^eoniace.® and Ranunculace^e, Bartlmg.) Calyx polysepalous. Corolla polypetalous, hypogynous, regular or irregular, im- bricate, sometimes 0. Stamens numerous. Anthers adnate. Carpels usually dis- tinct. Fruit an acliene or follicle, rarely a capsule or berry. Seeds erect, pendulous, or horizontal. Embryo dicotyledonous, minute, at the base of a usually horny albumen. Herbs, rarely shrubs ( Pceonia Moutan), or woody climbers {Clematis). Leaves radical or alternate, rarely opposite {Clematis), simple or compound, petiole often dilated, amplexicaul, or rarely furnished with stipuliform appendages {Thalictrum, Ranunculus). Flowers usually terminal, solitary, racemed, or panicled, usually regular, sometimes irregular {Delphinium, Aconitum), £ , or rarely dioecious by sup- pression {Clematis). Sepals 3 — oo , usually 5, free, rarely persistent {Helleborus, Pceonia), often petaloid, usually imbricate, rarely valvate {Clematis). Petals equal and alternate with the sepals, or more ( Ficaria , Oxygraphis, &c.), hypogynous, free, clawed, imbricate, deciduous, equal or unequal, various in form, often 0. Stamens usually many, many-seriate, hypogynous ; filaments filiform, free ; anthers terminal, “2-celled, cells adnate, extrorse or lateral. Carpels few or many, rarely solitary {Actcea), free, rarely coherent {Nigella) ; style simple ; stigma on the inner surface of the top of the style, or sessile ; ovules anatropous, sometimes solitary, ascending with a ventral raphe, or pendulous with a dorsal raphe ; sometimes numerous, attached to the ventral suture, 2-seriate and horizontal. Fruit of pointed or feathery achenes, or of follicles, which are rarely united into a capsule {Nigella), or of 1 -few- seeded berries {Actcea). Seeds erect, pendulous, or horizontal ; testa coriaceous in the achenes, and raphe little prominent ; testa crustaceous and fleshy-fungoid in the follicles, with the raphe very prominent and almost carunculate. Embryo minute at the base of a horny, or rarely fleshy albumen {Pceonia). We have illustrated the family of llanunculacece in greater detail than the others, in commemoration of the fine work of A. L. de Jussieu, read before the Academie des Sciences, in 1773, which may be regarded as the date of the birth of the Natural System. B. de Jussieu, the uncle of Antoine Laurent, had long studied the relationships existing between the different large groups of the Vegetable Kingdom ; but he did not attempt to estimate the relative value of the characters they presented, contenting himself with arranging in accordance with his views the flower-beds of the garden of the Trianon, which he formed for the instruction of Louis XV. Thirty years later, having become old and infirm, his nephew, Antoine Laurent, was charged with the completion of this garden, and made a special study of Ranunculacece, which at once revealed to him the scientific basis of his uncle’s classification. He could not have chosen a more instructive family in a philosophical point of view, because of the numerous anomalies it 172 1. RANUNCULACEiE. presents in the form and structure of the calyx and corolla of such genera as Columbine, Aconite , Larkspur, Hellebore, Itannnculus, Anemone, Clematis, Actcea, Thalictrum, &c., which, nevertheless, all agree in the separation of their sepals and petals, the insertion of their numerous stamens, the direction of their anthers, the form of their ovaries, and especially in the structure of their seed ; all of which, no doubt,, led to Antoine Laurent’s discovery of the grand principle of the relative value of characters. From these he was at once able to reason out and to formulate the pregnant axiom which his uncle had foreshadowed : that it is not by the number of characters, but by their value and importance, that the problem of the Natural Method can be solved. In his paper on Ranunculacece he enumerated and developed those views of the relative and subordinate importance of the organs of plants which other botanists, Linnaeus included, had failed to perceive ; together with those principles of a natural classifi- cation which decided the Academy of Sciences to elect him a member. ‘ Antoine Laurent,’ says his son, in the ‘ Dictionnaire Universelle d’Histoire Naturelle ’ (art. Taxonomie), ‘ supple- mented this discovery in the following year (1774) by a second paper, in which he extended his examination of a single family to all others. It hence became necessary to reconstruct the “Ecole Botanique ” of the King’s Garden, which was rapidly increasing under the powerful influence of Buffon ; and where the method of Tournefort, hitherto adopted, no longer kept pace with the progress and wants of science. Nor could the system of Li vinos us, though it prevailed almost throughout the rest of Europe, be accepted in the Paris garden, which was controlled by Buffon under the directorship of Bernard de Jussieu. The latter was now old and nearly blind, and as he did not insist on his nephew’s following his own arrangement of the Trianon garden, it would appear that he was not himself fully satisfied with it.’ Antoine Laurent hereupon adopted the new classification which he had proposed in 1 774 to the Academy, and thus became, as his son expressed it, both the lawgiver and administrator of the law — legis simul lator et minister .* From this memorable epoch dates the commencement of Jussieu’s preparations for his great work on the Families and Genera of the Vegetable Kingdom, upon which he worked unceasingly and single-handed for fifteen years, analysing all the genera, investigating the germination of their seeds, and finally embodying his materials in the ‘Genera Plantarum,’ which was published in 1789. In the Introduction, A. L. de Jussieu enunciates the lucid principles which guided him, and illustrates their application whilst in his co-ordination of the families and genera, he supplements by profoundly judicious notes the artificial character inherent in every linear series. He further indicates the manifold relationships that exist between the various groups of the Vegetable Kingdom; and the very doubts which he ex- presses betray that fine instinct for affinities with which he was gifted. Science has advanced since 1789; new types have been added to the family of llanunculacece, without disturbing any of the characters assigned to it by Jussieu. The most recent work on the subject is the ‘Genera Plantarum’ of the eminent botanists Bentham and Hooker fil. ; from which we shall borrow the description of all the known genera of Ranunculacece. Tribe I. Clematide^e, D.C. — Sepals valvate, petaloid. Petals 0, or narrow, flat, shorter than the sepals and staminoid. Carpels 1-ovuled ; ovule pendulous, raphe 1 The precious manuscript, which is wholly in the author’s handwriting, and which describes the ar- rangement of this garden, still exists. It is headed by an observation of its previous possessor, Andr6 Thouin, Professor of Horticulture in the Royal Garden, to the effect that this catalogue was the first drawn up in Paris in which both the binary nomenclature of Linnaeus and the natural families established by Jussieu are adopted. Thouin adds that the laying out of the Botanic Garden was begun in the autumn of 1773, and was completed in the following spring, that is, during the vacation, so as not to interfere with the Botanical course. 1. RANUNCULAOEiE. 173 dorsal. Aclienes numerous, often plumose. — Stem herbaceous or woody, climbing. Leaves opposite. Flowers cymose, sometimes dioecious. 1. * Clematis. — Petals 0, or represented by the outer stamens becoming petaloid. Carpels numerous. Achenes capitate, sessile or sub-stipitate, tipped by the persistent naked or bearded or feathery style. — Stem woody, climbing, or sub- woody, or herbaceous. Leaves several- (rarely 1-) foliolate, petiole often twining, but not becoming a tendril. Flowers solitary or panicled, often polygamo-dioecious. Nearly cosmopolitan. Section I. Flamimda. — Involucre 0. Petals 0. Achenes with a feathery tail. Section II. ViticcUa. — Involucre 0. Petals 0. Achenes with a short tail, not feathery. Section III. Cheiropsis. — Involucre calyciform, of 2 connate bracts, situated under the flower. Petals 0. Achenes with a feathery tail. Section IV. Atragene. — Involucre 0. Outer filaments dilated, and passing into petaloid staminodes. Achenes with feathery tails. '2. Naravelia. — Petals linear or clavate, quite distinct from the stamens. Carpels nume- rous. Achenes stipitate on a thick hollow receptacle, terminated by the persistent bearded style. — Stem woody, climbing. Leaves 2-foliolate, petiole cirrhiform. Flowers panicled. Tropical Asia i. Tribe IT. Anemones, D.C. — Sepals imbricate, usually petaloid, sometimes spurred (Myosnrus) . Corolla 0, or petals plane, claw not nectariferous ( Adonis ) or Clematis. Clematis. Clematis. Flower. Flower cut vertically (mag.). ristil (mag.). Clematis. Diagram. 174 1. RANUNCULACEiE. nectariferous ( Callianthemum , Myosurus). Carpels 1-ovuled ; ovule pendulous, raphe dorsal. Achenes dry, rarely fleshy [Knowltonia). — Stem herbaceous, erect. Leaves all radical, or the cauline alternate. Flowers often involucrate. 3. ^Thalictrum. — Involucre 0. Sepals 4-5, petaloid. Petals 0. Carpels more or less numerous, on a narrow receptacle ; style short, deciduous, or 0. Achenes often stipitate, ribbed, nerved, or winged. — Herbs with perennial rootstock. Leaves 2-3-pinnatisect. Flowers often polygamous, panicled or racemose, dull green, yellow, purple, or whitish, usually small. Europe, Asia, America. 4. * Anemone. — Involucre usually distant from the flower, of three whorled leaflets. Sepals petaloid, 4—20. Petals 0, or represented by the outer stamens changed into stipitate glands. Carpels numerous. Achenes in a head, terminated by the persistent naked or bearded style. — Scapigerous herbs with perennial rootstock. Leaves radical, lobed, or dissected. Flowers rarely yellowish. Stamens shorter than the sepals. Extra-tropical regions. Section I. Pulsatilla. — Outer stamens without anthers, gland-like. Achenes terminated by a bearded feathery tail. Section II. Anemone. — Stamens all fertile. Achenes terminated by a short point, not feathery. Section III. Hepatica. — Involucre close to the flower, and simulating a calyx. Achenes terminated by a short style, not bearded. 5. Knowltonia. — Sepals 5, herbaceous, deciduous. Petals 5-16, without a nectariferous hollow. Carpels numerous. Achenes capitate, fleshy or pulpy ; style deciduous. — Herbs with perennial rootstock, and the habit of Umlell ifevw. Radical leaves stiff, ternately decom- Thalictrum. Pistil (mag.). Thalictrum. Thalictrum. Thalictrum ftavum . Pendent seed. Carpel entire and cut vertically (mag.). Thalictrum. Flower (mag.). 1. BANUNCULACEiE. 175 pound, caulino small or bract-like, or 0. Flowers greenish or yellowish, peduncles often irregularly umbellate. Sou'll Africa. 0. * Adonis. — Sepals 5-8, coloured, deciduous. Petals 5-16, often spotted at base, but with no nectariferous hollow. Carpels numerous. Achenes in a head or spike ; style short, per- sistent, straight or hooked. — Annual or perennial herbs. Leaves pinnatipartite, multifid, segments narrow. Flowers solitary, yellow or red. llurope, Asia. 7. *Callianthemum. — Sepals 5, herbaceous, deciduous. Petals 5-15, with a basal nectari- ferous pit. Carpels numerous. Achenes capitate ; style short, persistent. Alpine, low Pasqne flower. ( Anemone Pulsatilla.) Anemone Pulsatilla. Anemone Pulsatilla. Pistil (mag.). Andrcecium and pistil. Anemone Pulsatilla. Diagram. Anemone Pulsatilla. Stamen (mag.). Anemone Ilepatica. Carpel entire and cut vertically (mag.). Anemone Ilepatica. . Fruit and involucre (mag.). Anemone Pulsatilla. Flower cut vertically (mag.). Anemone Pulsatilla. Ripe achcne cut vertically. 1. RANUNCULACEiE. Myosurus. Diagram. Myosurus. Young carpel (mag.). Myosurus. Achene cut Myosurus. vertically (mag.). Petal (mag.). Adonis wslicahs. Myosurus. Plower cut vertically (mag.). Myosurus. Stamen, outer face (mag.). 1. KANUNCULACEiE. 177 herbs ; rootstock perennial. Radical leaves decompound ; cauline few or 0. Flowers white. Europe, Asia. 8. Myosurus. — Sepals 5 (rarely 6—7), prolonged into a spur below their insertion. Petals as many as the sepals, narrow, spathulate ; claw filiform, tubular, nectariferous at the top. Carpels numerous. Achenes minute, in a long spike, laterally attached ; style short, per- sistent.— Annual, small herbs. Leaves entire, all radical. Scapes 1 -flowered, naked. Flowers minute. Europe, Asia, Africa, Australia, New Zealand. Tribe III. Ranuncule^e, D.C. — Sepals imbricate. Petals with a nectariferous claw, rarely 0 ( Trautvetteria ). Carpels 1-ovuled ; ovule ascending, raphe ventral. Achenes dry. — Herbs. Leaves radical or alternate. Ranunculus. Acbene, entire snii cut vertically 'nm;.). Ranunculus. Petal, inner face (mag.). Ranunculus. Upright seed (mag.). Ceratocephalus. Ripe pistil. N I. RANUNCULACEiE). 178 Cevalocephalus, Achene cat vertically (mag.). Ceratocephalus. Flower cut vertically (mag.). Young carpel (mag.). Ficaria. Vertical section of flower (mag.). Ficaria. Pistil. Ceratocephalus, Seed (mag.). Ficaria. Ficaria Petal, inner Ficaria. Carpel (mag.). face (mag.). Stafirren(mag.). 9. Trautvetteria. — Sepals 3-5, concave. Petals 0. Carpels numerous. Achenes capitate, membranous ; style very short. Embryo rather large. — Herbs with perennial rootstock. Leaves palmatilobed, cauline few. Flowers in a corymbose panicle. North America and Japan. 10. * Ranunculus. — Sepals 3-5, caducous. Petals as many, or more numerous, with a basal nectariferous pit or scale. Carpels numerous. Achenes in a head or spike, beaked by the short style. — Annual, or oftener perennial herbs. Leaves entire or cut. Plowers white, yellow or red, solitary or panicled. Almost cosmopolitan. — The aquatic species have been made into a separate genus ( Batrachium ) by several modern botanists, on account of their transversely wrinkled achenes, and habitat. Ficaria has been separated, from having three sepals, 6-9 petals, and obtuse carpels ; and Ceratocephalus, because the base of the carpels presents two external gibbosities, and internally two empty cells, and the carpels are further produced into a horn five to six times as long as the seed. 11. Hamadryas. — Flowers dioecious by suppression. Sepals 5-6, caducous or subpersistent. Petals 10-12, with a basal scale. Carpels numerous. Achenes capitate, tipped by the short I. KANUNCULACEiE. 179 stylo. — Low herbs, with perennial rootstock, only differing from Ranunculus in the dioecious flowers. Antarctic America. 12. Oxygraphis. — Sepals 5, persistent. Petals 10-15, with a basal nectariferous pit. Carpels numerous. Aclienes capitate, beaked by the persistent style. — Low herbs, rootstock perennial. Leaves radical, entire. Scapes naked. Flowers solitary, golden-yellow. Mountains of extra-tropical Asia. Tribe IY. Hellebores, D.G. — Flowers regular or irregular ( Aconitum , Del- phinium). Sepals imbricate, petaloid. Petals small, or irregular and nectariferous, or 0 ( Caltlia , Hydrastis). Carpels several-ovuled, dehiscent when ripe, rarely berry- like ( Adoea , Hydrastis), follicular, free, rarely connate into a several-celled capsule (Nigella). Herbs. Leaves all radical, or the cauline alternate. Call/ta pahulris. Cattha. Young carpel (mag.). Cattha. Seed with fungoid chatnza (mag.). Cattha. Flower cut vertically. Cattha. Pistil and portion of androecium. L>. ‘Caltha. — Sepals 5-oo , equal, coloured, deciduous. Petals 0. Carpels few or many, sessile; ovules many, 2-seriate, follicular when ripe. Seeds obovoid ; testa crustaceous, smooth, raphe prominent. — Glabrous perennial herbs, tufted, or with a perennial rootstock, Leaves radical, palminerved, entire or crenulate, cordate or auricled, cauline few or 0. Flowers yellow or white, one or few. Stamens and carpels numerous or few. Europe, Asia, America, Australia, New Zealand. 1 1. Calathodes. — Sepals 5, regular, coloured, deciduous. Petals 0. Carpels numerous, sessile, distinct ; ovules 8-10, 2-seriate near the base of the suture. — A perennial erect herb, ISO I. RANUNCULACEiE. habit of Trollius. Leaves cauline, palmatilobecl or dissected. Flowers yellow, solitary. Eastern Himalaya. 15. Glaucidium. — Sepals 4, regular, deciduous. Petals 0. Carpels 1 or few, sessile, slightly coherent at the base ; ovules numerous, many-seriate along the ventral suture. Follicles square, with dorsal dehiscence. Seeds numerous, oblong, depressed ; testa finely crustaceous ; raphe very prominent, almost winged. — A perennial upright herb. Leaves palmatilobed. Flowers solitary, ample, lilac or pink. Japan. 16. Hydrastis. — Sepals 3, regular, petaloid, caducous. Petals 0. Carpels numerous, sessile, distinct, 2-ovuled, fleshy when ripe, and forming a bead, as in Rubus. — A perennial erect herb. Leaves palmatilobed, or dissected. Flowers solitary, small, white. Stamens a little longer than the sepals. North America. Troll uts. Diagram. Trollius. Seed, entire and cut vertically (mag.). Trollius. Pistil. Trollius. Fruit. Trollius. Petal, inner face (mag.). Trollius. Stamen (mag.). 17. *Trollius. — Sepals 5-oo , regular, petaloid, de- ciduous. Petals 5-8, small, clawed, rarely oo , long-linear ; blade entire, with a nectariferous pit at the base. Carpels many, free, sessile, many-ovuled, follicular when ripe. Trollius europaus. Seeds oblong, usually angular; testa crustaceous, rather smooth.— Erect herbs ; rootstock perennial. Leaves palmati-lobed or -sect. Flowers solitary or few, large, yellow or lilac. Europe, Asia, North America. T roll lire. Flower cut vertically. I. EANUNCULACEiE. 181 18. *Helleborus. — Sepals 5, regular, petaloid or sub-herbaceous, usually persistent. Petals small, clawed, nectariform ; blade furnished at the base with an inner lip, or a scale. Carpels many, sessile or subsessile, distinct or coherent at the base, many-ovuled, dehiscing inwards at the top -when ripe. Seeds 2-seriate ; testa crustaceous, shining. — Erect herbs; rootstock perennial. Leaves palmati-sect or -lobed, or digitate, cauline few, the upper sometimes involucriform or all bracteiform. Flowers large, white, greenish, yellowish or livid, solitary orpaniclecL Sepals large. Follicles coriaceous or membranous. Europe and Western Asia. II. niger. Flower cut vertical!}’. II. niger. Diagram. II. niger. Pistil. Iltlleborus niger. II. niger . Petal . //. fcetidus. Eranthis. Petal. Petal (mag.). Eranthis. Seed, entire and cut vertically (mag.). Eranthis hit mails . Eranthis. Flower cut vertically. Eranthis. Diagram. 182 I. RANUNCULACEiE. 19. * Eranthis. — Sepals 5-8, regular, petaloid, deciduous. Petals small, nectariform, clawed ; blade furnished at the base with an inner scale-like lip. Carpels many, distinct, stipitate, many ovulcd, follicular when ripe. Seeds ovoid or sub-globose ; testa crustaceous, smooth. — Low herbs ; rootstock perennial, tuberous. Leaves radical, palmatisect, cauline solitary, amplexicaul beneath the flower or peduncle, segments simulating the whorled leaflets of an involucre. Flower solitary, yellow ; sepals narrow. Europe, and Mountains of Asia. 20. Coptis. — Sepals 5—6, regular, petaloid, deciduous. Petals 5-6, small, cucullate or linear. Carpels many, stipitate, distinct, many-ovuled, follicular when ripe. Seeds with crustaceous shining testa. — Low herbs; rootstock perennial. Leaves radical, ternately dissected. Scapes naked, 1-3-flowered. Flowers white. Europe, Asia, North America. Nigella saliva. Nigella. Nigella. Stamen (mag.). Diagram. Nigella . Fruit. Nigella. Pistil. Nigella. Seed, entire and cut vertically. N. Damascena. Fruit cut transversely to show the cells and the spurious cells. 21. * Isopyrum. — Sepals 5—6, regular, petaloid, deciduous. Petals 6, very short, nectari- form or 0. Carpels 2-20, sessile, distinct, 3-oo -ovuled, follicular when ripe.— Slender low herbs ; rootstock perennial. Leaves ternately decompound ; cauline alternate or subopposite, or 0. Flowers solitary or loosely panicled, white. Petals variable in form. Stamens some- times reduced to about 10. Europe, Asia, North America. 22. * Nigella. — Sepals 5, regular, petaloid, deciduous. Petals 5, clawed ; blade small, 2-fid. Carpels 3-10, sessile, more or less coherent, many-ovuled, opening when ripe at the top I. K ANUN CUL ACEiE. 183 of the ventral suture. Seeds angular ; testa crustaceous or sub-fleshy, often granular. — Erect o-labrous herbs. Cauline leaves pinnatisect, segments very narrow. Flowers white, blue, or yellowish, sometimes involucrate with one floral leaf. Europe, Western Asia,. Oaridelta. Fetal (mag.). Garidella. ■ Oaridella. . Columbine. Diagram. Flower cut vertically (mag.). ( Aeuilegia vulgaris .) Oaridella. Stamen. Columbine. Flower cut vertically. Columbine. Diagram. Columbine. Fruit. 184 I. RANUNCULACEiE. 22 b. Garidella. — Sepals 5, petaloid, caducous. Petals 5, 2-labiate. Follicles 2-3, sessile, coherent at the base, and opening at the top ; style very short. Seeds 2-seriate. — Slender herbs. Leaves finely multifid. Flowers small, white. Mediterranean Eegion. 23. *Aquilegia. — Sepals 5, regular, petaloid, deciduous. Petals 5, like a cornucopia or hood, attached by the margin of the limb, and nectariferous at the base of the cavity. Lower stamens reduced to scale-like staminodes. Carpels 5, sessile, distinct, many-ovuled, follicular when ripe. Seeds with crustaceous, smooth or granular testa. — Erect herbs; rootstock perennial. Leaves ternately decompound. Flowers conspicuous, blue, yellow, scarlet, or parti- coloured, solitary or panicled. Europe , Asia, North America. 24. * Delphinium. — Sepals 5, petaloid, unequal, subcoherent at the base, the posterior turned up in a horn or spur. Petals 2 or 4, small, all sometimes united, the two upper pro- longed into a pointed spur included in that of the calyx ; the two lateral not spurred, or 0. Carpels 1—5, sessile, distinct, many-ovuled, follicular when ripe. Seeds subfleshy. — Annual herbs, or with perennial rootstock, erect, branched. Leaves palmatilobed or dissected. Lark-pur. ( Delphinium consolida.) Larkspur. Stamen (mag.). Larkspur. Larkspur. Ripe Pistil, with a carpel. stamen (mag.). Larkspur. Andrcecium and pistil. Larkspur. Flower cut vertically (mag.). Larkspur. Seed, entire and cut Diagram vertically (mag.). Larkspur. Corolla. Larkspur. Upper sepal. I. RANUNCULACEJE. 185 Flowers rather large, in a loose raceme or panicle, blue, purplish, pink or white, rarely yellow. Filaments sometimes dilated at the base. Europe, Asia , North America. 25. *Aconitum. — Sepals 5, petaloid, unequal ; posterior large, helmet-shaped, covering the corolla ; 2 lateral larger than the 2 anterior. Petals 2-8, small, very unequal, the two upper with long claws, cucullate at the top, hidden under the helmet ; the lower minute, filiform, often 0. Carpels 3-5, sessile, distinct, many-ovuled, follicular when ripe. Seeds with spongy testa, deeply wrinkled. — Erect herbs ; rootstock perennial. Leaves palmati-lobed or -sect. Flowers racemed or panicled, blue, purplish, yellow or white ; pedicels bracteolate. Filaments usually dilated at the base. Europe , Asia.- Aconite. Seed, entire awl cut vertically (mag.). Aconite. Diagram. Aconite. Flower cut vertically (mag.). 20. *Actsea. — Sepals 3-5, subequal, petaloid, deciduous. Petals 4-10, small, clawed, spathulate, flat. Carpel solitary, many-ovuled, berried when ripe. Seeds depressed ; testa crustaceous, smooth. — Herbs ; rootstock perennial, fusiform ; stem erect. Leaves ternately 186 I. RANUNCULACEiE. decompound. Flowers small, in short racemes that lengthen after flowering. Stamens longer than the sepals. Stigma sessile, dilated. Europe, Asia, North America. Actcea. Flower cut vertically (mag.)* 27. Cimicifuga. — Sepals 4-5, subequal, petaloid, deciduous. Petals 1—8, small, clawed, 2-lobed, or 0. Carpels 1—8, distinct, many-ovuled, follicular when ripe. — Herbs, habit and foliage of Adcea. Flowers small, very numerous, in elongated racemes. Europe, Asia, North America. 28. *Botrophis. — Sepals 4-5, petaloid, equal. Petals 0. Outer stamens dilated, terminated by an imperfect anther. Carpel solitary, 1 -celled; ovules 2-sei’iate. Follicle substipitate. — Herbs, leaves 2-3-sect, segments incised, toothed. Flowers racemose, white. North America. 29. Xanthorhiza. — Sepals 5, subequal, petaloid, de- ciduous. Petals 5, small, clawed, gland-like, dilated at the top. Stamens 5, alternate with the petals, or 10. Actcea spicata. Carpels 5—10, distinct, sessile, 2-ovuled on the middle of the inner suture, opening in follicles when ripe, and one-seeded by suppression. Seed pendulous. — Shrubs or under-shrubs, dwarf ; stem yellow within. Leaves pinnatisect, proceeding in early spring from a scaly bud. Racemes com- pound, pendulous. Flowers small, blackish-purple, often polygamous. Stamens short. North America. Actcea. Actcea. Stamen (mag.). Seed, entire and cut vertically (mag.). Actcea . Fruit (mag.). A ctcea. Pistil (mag.). Tribe V. P^onie^e, D.C. 30. * Pseonia. — Sepals 5, imbricate, herbaceous, persistent. Petals 5-10, conspicuous, broad, without a nectariferous pit. Carpels 2-5, many-ovuled, girt at the base with a fleshy disk, which is often spread over the base of the calyx, or forms an irregular cup more or less enveloping the ovaries. Fruit of coriaceous follicles. Seeds large, albumen fleshy. — Herbs with perennial fusiform rootstock, or with branching, more or less woody stems. Leaves I. BANUNCU LACEiE. 187 Peony. Stamen, Miner faoe. Peony. Seed, entire and cut (mag.). Pceonia Mo u tan. Calyx, torus and pistil. Peony. (Pceonia, officinalis.) Peony. Diagram. Peony. Flower cut vertically. Peony. Calyx, torus, and pistil. Peony. Fruit. 188 I. RANUNCULACEiE. ample, pinnatisect or decompound. Mowers conspicuous, purplish, white, or red. Europe, Asia. Ranuncidaceee approach Dilleniacece in the distinct imbricate sepals, polypetalism, hypogyny, polyandry, adnate anthers, distinct carpels, anatropous ovules, capsular or follicular fruit, erect albuminous seed, minute basilar embryo, and terminal inflorescence. Dilleniacece only differ in habit, persistent sepals, and especially in having arillate seeds. Magnoliacece offer the same analogies and differences ; and are also distinguished by their habit and their many-seriate petals. Berberideat have, like Ranuncidacecc , distinct sepals and petals, often nectariferous, adnate anthers, one or more free carpels, and albuminous seed ; but their flower is iso- or diplo-stemonous, their anthers open by valves, and their embryo is axile and not basilar. Papaveracece differ in their syncarpous pistil, 2-merous flower and milky juice. Similar relations exist with Nympheeacea ?, which further differ in their habit, 1-flowered scape, many-seriate petals, largely dilated filaments, rayed stigma, and arillate seeds. Finally, some affinity has been discovered with Sarracenieee , which are distinguished by their peltate and petaloid stigma, their radical leaves with tubular petiole, undeveloped blade, and 1-flowered scape. Ranunculacece are universally distributed, but most inhabit temperate and cold regions of the northern hemisphere ; as throughout Europe, from the sea-shore to the limit of perpetual snow. They are rarer in North America and temperate Asia. Clematis alone is tropical, and is distinguished from all the other genera by its sarin entose habit and opposite leaves. Few Ranunculi inhabit the high mountains of the equator. Ranunculus, Caltha, and Clematis occur nearly everywhere. Adonis, Ceratocephalm, Bran this, Itelleborus, Garidella, Nigella, Pceonia, &c., belong exclu- sively to the Old World ; Cyrtorhyncha, Hydrastis, Trautvetteria, Botrophis, and Xanthorhiza are their New World representatives. Kumvltonia inhabits South Africa, Ilamadryas extra-tropical South America, and Xaravelia tropical Asia; the other genera are dispersed over the northern hemisphere. Most Ranunculacece are acrid, and more or less poisonous; but these properties are volatile, and driven off by cooking and drying ; except in some cases, where they are alkaline, and consequently more fixed and powerful. Their roots, when perennial, contain, besides the acrid, a bitter extractive principle, contained in various proportions, with a volatile oil, which renders them drastic and emetic. Their seeds are acrid ; some contain both a fixed and a volatile oil, and are aromatic. Clematis erecta, Vitalba and Flammula, are very aerid and vesicant. The juice of the leaves of C. Vitalba is used by beggars to produce superficial sores and thus excite pity. C. cirrhosa from the Mediterranean region, C. crispa from North America, and C. mauntiana from Madagascar, replace cantharides in those countries. The numerous Ranunculi are often popularly used as vesicants ; the most acrid are R. Thora, an alpine plant, and R. sceleratus, named by the Romans Sardonia, because it excites convulsive sardonic laughter: slow cooking dissipates its poisonous properties, and renders it eatable as a potherb. So it is with Clematis Flam- mula, one of the most acrid species, the young shoots of which may be eaten without danger. Ranunculus Ficaria, a common plant in damp hedges and woods, is very acrid before flowering, but the mucilage and starch which are developed later render it eatable. R. alpestris is a vesicant and strong purgative ; yet the Alpine hunters chew its leaves to keep off giddiness and to strengthen them. Anemones are equally vesicant. A. nemorosa is used as such in some parts of Europe, and A. helle- borifolia replaces cantharides among the Peruvians ; as does Kumvltonia, of South Africa. The Italians prepare a rubefacient water with A. apennina, which the ladies are said to use to heighten their com- plexion. A. ranunetdoides , a common northern species, is so acrid that the Kamtschatkans poison their arrows with it. A. Pulsatilla is the richest in medical properties: though nearly inodorous, yet if bruised, it emits a vapour that violently irritates the mucous membrane of the eyes, nose, and back of the mouth, owing to the presence of a volatile acid, an alkali named anemonine, and a volatile oil. In a fresh state it is used in paralysis, especially of the retina, in rheumatism, aud in obstinate cutaneous diseases. Thalictmm Jlamm, ‘ rhubarbe des pauvres,’ is administered in jaundice and intermittent fevers. T. Cornuti is regarded in North America as a powerful alexipharmic. Delphinium Consolida, Larkspur, is aperient, diuretic and vermifuge ; the seeds of 1). Staphisagna are drastic, emetic, and employed exter- nally in a powder to destroy lice, and in skin diseases. The seeds of the Nig dice are slightly acrid and aromatic; they are used in the South of Europe and in the East to flavour bread. Coptis trifoliuta is a sub- arctic plant of both worlds, renowned for its stomachic properties ; it yields a yellow colouring principle. The root of C. Tecta is much celebrated in India and China as a powerful stimulant of the digestive organs. Hydrastis canadensis yields both a dye and a tonic medicine. II. DILLENIACEiE. 189 ITelleborus niger, foetidus, viridis, and orient a! is contain a bitter substance, united to a resinous principle, which is a drastic purgative, and poisonous in large doses. The Aconites are narcotic acrid herbs, con- taining an alkaloid called aconitine, combined with a peculiar acid, and resinous or volatile principles; the leaves and seeds of Aconitum Napellus and A. panicidatwn are of use in small doses for exciting the glandular and lymphatic systems, but are very poisonous in large doses. A.ferox,1 a native of Nepal, is reputed to be the most poisonous of all. Actcea spicata was formerly given internally for asthma and scrofula, and externally for skin complaints. Cimicifuga serpentaria, of a nauseous smell and bitter taste, is in North America reputed to be a specific against the bite of the rattlesnake. C. feetida, a widely diffused plant of cool northern regions, was formerly used in dropsy as a purgative : its name is derived from its supposed property of driving away bugs. The root and wood of Xanthorhiza apiifolia, a North American undershrub, contain a bitter resin and yellow dye, and are renowned as tonics. Pceonia officinalis was formerly famous in sorcery: its fresh seeds were used as emetics in epilepsy; and in some countries, necklaces made of them are still used to ward off convulsions from children. The Siberian P. anomala has a bitter root without acridity, smelling of violets, which is very useful in intermittent fevers. II. MLLENIACEaE. (Dillene.e, Salisbury. — Dilleniace. yacarpcea), and oily seed ; but Cruciferee are usually tetradynamous, their ovary is two- celled, their ovules are campylotropous, and their seed exalbnminous. Paparcracece are also near Ranunculaceee, JBcrberidea , and Nympheeaceee (see these families). One monotypal Californian genus, Crossosoma, placed among Panitnculacece, approaches Papaveraceee in its monosepalous calyx, polyandry, perigynous petals and stamens (as in Eschscholtzia ), and in the separation of the carpels (as in Platystemon) ; it differs in its isomerous calyx and corolla, and multifid aril enveloping the seeds. Papavcracece inhabit the temperate and subtropical regions of the northern hemisphere ; but few are met with in the tropics or southern hemisphere. Some species are now dispersed over cultivated ground through- out the world. The most important of the Papaveracece with milky juice is the Papaver somnifer urn, an ■ 218 XIII. FUMARIACEJE. annual herb, a native of Asia. .Its juice, obtained by a superficial incision of its capsule, and thickened by exposure, is opium, a substance containing several principles, and notably an alkaloid ( morphine ), whose powerful properties render this one of the most valuable of drugs. Taken in a large dose, it is a deadly poison; blit .-habit rapidly weakens its action, and by degrees considerable quantities can be swallowed with impunity. , Orientals; and especially the Chinese, drink, chew, or smoke opium to procure intoxica- tion, the rdaily renewal of which becomes a want, which they satisfy at any price ; when they soon fall into a state of ’physical' and moral degradation, from which nothing can rescue them. In the north of France a variety of P. somniferum is largely cultivated, the seeds of which are blackish Svheri.’ tape, ■and yield .by expression a bland -oil, used like olive oil, and known as white oil and ofeolum. The Ypetals of the Field-Poppy (P. Phoeas ) are mucilaginous, emollient, and slightly narcotic. Chelidonium majuk is a peren*riial herb, fqund in cultivated spots. The yellow and acrid milky juice, which fills all parts of' the plant, is used in Europe to destroy warts and to remove specks on the cornea; it is regarded in Brazil,1 either 'rightly or. wrongly, as efficacious against the bite of venomous serpents. The juice of Argemone mexicaria possesses, it is said, the same virtues. The root of Sanguinnria canadensis, which contains a red juice, is acrid and bitter, and colours the saliva of a bright red ; sedative properties similar to those of Digitalis are attributed to it, and its narcotic seeds are considered equally powerful as those of Datura Stramonium (Thorn-Apple). XIII. FUMA RIA CEAE, D.C. II ypeco um . Ilypeco u m Pistil (mag.). procumbens. Ilypecoum. Seed, entire and cut vertically (mag.). Ilypecoum. Ilypecoum . One of the inner petals (mag.). One of the outer petals (mag.). 1 There ^is probably some error here, Chelidonium not being a native of Brazil. — Ed. XIII. FUMARIACE2E. 219 • • ' • Hypecoum. Androecium and pistil (mag.). Fumaria ofltinalit. Fu maria. Diagram. Fumaria. Inner petals (mag.). Fumaria. Outer petals (mag.). 220 XIII. FUMAKIACEiE. Dismembered flower, b , bracteoles ; sepals ; pe , outer petals ; pi, inner Dicentra spectabilis. petals ; st, stamens. © Dicentra. Diagram. Cysticapnos. Vesicular fruit (mag.). Ceratocapnos palaestina. C'eratocapnos. Fruits of different shapes on the same plant. Herbaceous, annual or perennial, usually glaucous plants, with watery juice. Stem sometimes tuberous, rarely sarmentose. Leaves alternate, cut. Flowers 5 , irregular, terminal, in a raceme or spike, or sometimes solitary. Sepals 2, antero- posterior, free, petaloid or scale-like, imbricate in bud, caducous. Petals hypogy- nouSj'A, free or connate at the base, 2-seriate, the 2 outer lateral, alternate with the sepals, dilfering from the inner and equitant upon them, equal ( Hypecoum , Dicentra, Adlumia ) or unequal, one being spurred or gibbous, the other flat, 2 inner petals placed crosswise to tlie outer, oblong-linear, sub-callous, and coherent at the tips, which enclose the anthers and stigmas. Stamens rarely 4, free, with 2-celled anthers (Hypecoum) , usually 6, united by their filaments in two bundles opposite to the outer petals, and each composed of 3 anthers, of which the 2 lateral are 1 -celled, and the median is 2-celled ( Fumaria , Sarcocapnos, Corydalis, Adlumia, Dicentra ) : anthers extrorse, dehiscence sometimes lateral (Hypecoum) . Ovary free ; style simple, sometimes 2-fid (Hypecoum) ; stigma ; usually forming two crenulated XIV. CRUCIFERS. 221 lobes ; ovules half-anatropous, one or several on parietal placentas. Fruit siliquose, many-seeded, 2-valved ( Corydalis , Adlumia, Dicentra), or vesicular ( Cysticapnos ), or 1-2-seeded and indeliiscent ( Fumaria , 8arcoca.pnos), or jointed and divided by trans- verse septa into 1-seeded indeliiscent cellules ( Ceratocapnos , Hypecoum). Seeds horizontal, hilum usually naked, sometimes strophiolate ( Dicentra , Corydalis) ; albu- men fleshy. Embryo usually minute, nearly straight, basilar, often only visible at the moment of germination, and having apparently only one oval cotyledon (Cory- dalis). GENERA. Ilypecouin. * Dicentra. Pteridopbyllum. * Adlumia. * Corydalis. Sarcoca puos. * F umaria. Fumariaceee are so closely allied to Papaveraceee (see that family), that many modern botanists have united them, for they differ ehiefly in the dissimilarity between their inner and outer petals, and in their definite stamens. Like Papaveracese, they approach Cruciferes in their corolla, hypopetalism, parietal placentatiou, curved ovule, and the structure of the fruit, but differ in their irregular dowers with two sepals, diadelphous stamens, albuminous seed, and minute and basilar embryo. They inhabit the temperate northern hemisphere, and especially the Mediterranean region and North America. Some {Cysticapnos, I’/tacocapnos ) inhabit South Africa ; none have been observed in the hot regions of the tropics. Most Fumariacea contain in their herbaceous parts mucilage, saline substances, and a peculiar acid or acrid juice, so combined that they are classed among tonic and alterative medicines. The Common Funiitorv ( Fumaria officinalis) occurs everywhere in corn-fields and on rubbish heaps; its juice is bitter, stomachic, and depurative. The roots of Corydalis bulbosa and fabacea are sub-aromatic, very bitter and slightly astringent, and employed as emmenagogues and vermifuges. The rather bitter and very acrid foliage of C. capnoidcs is a reputed stimulant. XIV. CRUCIFERsE. Tetrapetal.e, Day. — Siliquose, Magnol. — Cruciformes, Tournefort. — Tetrady- nam.e, L. — Antiscorbutics, Crantz. — Cruciate, Haller. — Crucifers, Adanson. — Brassicacea:, Lindl.) Sepals 4. Petals 4, hypogynous. Stamens G, tetradynamous. Ovary sessile, 2- (rarely 1-) celled, with 2 parietal placentas. Fruit a siliqua or silicula, or nut or lomentum. Seeds exalbuminous. Embryo oily, bent, rarely straight. Usually herbs, rarely suffruticose, with watery juice, often rather acrid; hairs when present simple or stellate, or fixed by the middle, very rarely glandular. Stem cvlindric or angular, sometimes spinescent. Leaves simple, alternate, rarely opposite, entire, lobed or dissected, the radical often runcinate, and the cauline often auricled at the base ; stipules generally 0. Flowers ?, in a raceme, rarely solitary on a scape; racemes usually terminal, corymbose when young, rarely bracteate. Corolla white, yellow, or purplish, rarely blue or pink. Sepals 4, free, 2-seriate, the 2 outer opposite, antero-posterior, answering to the placentas, the 2 inner lateral, often larger, and gibbous at the base, imbricate in bud, very rarely valvate i Ricotia, Savignya, Ac.). Petals 4, hypogynous, rarely 0 (A rmoracia, Lepidium (som e),Cardamine (some), Ac.), arranged crosswise, usually entire, equal, or the outer 222 XIV. CRUCIFEK2E. ■Wallflower. ( Cheiranthus C/ieiri.) Wallflower. Flower cut vertically (mag.). Wallflower. Pistil (mag.). Wallflower. Siliqua. Wallflower. Andrcecium and nectaries. Cochlearia. Andrcecium and pistil (mag.).. Parolinia. Siliqua with valves prolonged into forked horns (mag.). Cochlearia officinalis. Cochlearia. Flower (mag.). Coohlearia. Silicule (mag.). Cochlearia. Pistil (mag.). Cochlearia. Flower cut vertically (mag.). Cochlearia. Seed, entire, and cut both ways to show the accumbcnt cotyledons (mag.). XIV. CRUCIFEKiE. 223 Lunar ia biennis. Lunaria . Flower. Seed, cut botli ways to show the accumbent cotyledons (mag.). Lunaria, Seed (mag.). Barbarea . Seed, entire and cut vertically (mag.). Tetrapoma barbarce/oiia. Transverse section of the silicule, showing the four placentas and the incom- plete septa (mag.). Lunaria. Silicule. A rabis. Seed cut transversely (mag.). Barbarea. Seed cut transversely (mag.). A rabis. Winged seed, entire and cut vertically (mag.). 224 XIV. CRUCIFERS. Vesicaria utriculata. Vesicaria. Seed, entire, and cut both ways to show the acciunbent cotyledons. Eruca. Siliqua terminated by the style enlarged into a beak. Eruca. Pistil with an ensiform style (mag.). Erophila. Silicule Placentas and (mag.). septum (mag.). Vesicaria. Silicule, entire and without its valves Megacarpiea polyandt'a. (mag.). Androeeium. Megacarpcea. Pistil (mag.). Cremolobus sin uatus. Silicule (mag.). XIV. CRUCIFERS. 225 /Orris atnara. Iberis . Flower (mag.). Iberis. Flower cut vertically (mag.). Iberis. Andrnecium and pistil (mag.). Iberis. Silicule without its valves. Thlaspi (li cense. Seed, entire, and cut both ways to show the accumbent cotyledons (mag.). Ifeslia paniculata. Seed, entire, and cut both ways to show the incumbent cotyledons (mag.). .i'Jhionema sajratile. Seed, entire, and cut both ways to show the incumbent cotyledons (mag.). Lepidium. Seed, entire, and cut both ways to show the 3-partite and incumbent cotyledons. Shepherd's Purse (CapttHa Hursa-pastoris) (mag.). Capsella. Placentas and septum (mag.). /satis tinrtoria. Flower cut Tortically (mag.). Fruit, Capsella. Androecium and pistil (mag.). Capsella. Silicule (mag.). Capsella. Silicule without its valves (mag.). Isatis. entire and cut vertically (mag.). Q M nag rum. Silicule, entire and cut vertically (mag.). 226 XI Y. CRUCIFERS Raphanistrum. Flower cut vertically (mag.). Raphanistrum. Andrcecium and nectaries (mag.). Raphanistrum. Diagram. Thysanocarpus elegans. Silicule with the circumference perforated (mag.). Ctypeola cyclodonta. Silicule (mag.). Bunias. Bunias. Silicnle, entire and cut vertically Seed, entire, and cut vertically to (mag.). show the coiled cotyledons (mag.). Myagrum perfnliatum. Seed, entire, and cut both ways to show the incumbent cotyledons (mag.). Crambe. Crambe. Bunias. Silicule cut Pistil and nectaries Pistil (mag.). vertically (mag.). (mag.). Cramhe maritima. Crambe. Flower cut vertically (mag.). Andrcecium, pistil, ami nectaries (mag.). XIV. CRUCIFERS. 227 larger, variously imbricate in bud. Glands sessile at the base or on tbe circum- ference of the torus, usually 4, opposite to the sepals, or 2 or 6, or forming a con- tinuous variously lobed ring, sometimes 0. Stamens liypogynous, (>, of which 2 are short, and opposite the lateral sepals, and 4 longer facing the placentary sepals, and close together in pairs, or coherent ; sometimes reduced to 4 or 2 ( Lepidium (some), Capsella (some), Senebiera (some)), rarely oo {Megacarpcea polyandra) ; fila- ments subulate, the longest sometimes 1-toothed, or arched, rarely dilated or appen- daged ( Lepidostemon ) ; anthers 2- (very rarely 1-) celled {At el anther a) , introrse, dehiscence longitudinal, basifixed, cordate or sagittate, sometimes linear {Parry a) or twisted ( Stanleya ). Ovary of 2 connate carpels (very rarely 3-4, Tetrapoma) , placed right and left of the floral axis, sessile, rarely stipitate {Warea, &c.), placentation parietal, usually 2-celled by cellular plates springing from the placentas, and dilated into a false vertical septum ; sometimes 1-celled, with parietal, basilar or apical placen- tation ; sometimes divided into several superimposed cellules by spongy transverse septa ( liaphanus ) ; style simple, or dilated, or appendaged, below the stigmas ; stigmas 2, opposite to the placentas, erect or divergent, or united into one, sometimes decur- rent on the style ; ovules oo, or few or solitary, pendulous or horizontal, very rarely solitary and basilar in the 1-celled ovaries ( Clypeola , Dipteryginm), or apical ( Isatis , Tansehcria, Euclidium), campylotropous or half-anatropous, raphe ventral, andmicro- pvle superior. Fruit elongated (siliqua), or short ( silicula ), usually 2-celled, or 1- celled from arrest of the septum ( Tsatis , Clypeola, Calepina, Myagrum, &c.), usually with 2 valves separating from the placentas, rarely with 3-4 valves {Tetrapoma) , sometimes indehiscent from the cohesion of the valves {Raphanus), rarely transversely divided into 2 one- or more-seeded joints, of which the upper ( Erucaria , Morisia, &c.), or the lower [Chrambe, Rapistrum, Cahile, Enarthrocarpus) is indehiscent. Seeds sub- globose or margined or winged ; testa cellular, usually becoming mucilaginous when moistened. Embryo oily, curved, very rarely straight ( Leavenworthia ), exalbuminous or very rarely enveloped iu a layer of fleshy albumen {[satis, some) ; cotyledons sub- aerial, usually plano-convex, accumbent ( Pleurorliizece ) or incumbent ( Notorhizece ) relatively to the radicle (which is usually ascendent), rarely oblique, sometimes folded in two along their length and embracing the radicle {Orthoplocea}) , rarely linear, and folded twice transversely {Diplecolobeee) , very rarely linear and coiled transversely upon themselves ( Spiroloibea ?). Tribe I. 0RTH0PL0CE2E, D.C. Cotyledons longitudinally conduplicate, embracing the dorsal radicle. PRINCIPAL GENERA. Sinapi*. Eruca. * Brassica. Hirschfeldia. Erucastrum. Diplotaxis. Vella. Moricandia. Calepina. * Cramhe. Morisia. Kapistrum. Enartlvrocavpus. * Raphanus. Eaphanistrum. a 228 XIV. CRUCIFERiE. Tribe II. FLA TYLOEEJE. (Pleurorhize.e et Notorhizea:, D.C.) Cotyledons plane. Radicle lateral or dorsal. PRINCIPAL GENERA. ( SUiquose Platylubea. ) ' Hesperis. * Malcolmla. * Cbeirantbus. * Matthiola. * Erysimum. ■ Barbarea. Sisymbrium. Alliaria. * Nasturtium. * Arabis. Cardamine. Dentaria. ( Siliculose Platylobecv.) Lunaria. * Farsetia. * Aubrietia. * Vesicaria, * Alyssum. Clypeola. Peltaria. Draba. Erophila. * Armoracia. ' Cochlearia. Tetrapoma. Neslia. * Myagrum. * Camelina. Biscutella. Megaearpsea. * Lepidium. Hutchinsia. ’Iberis. Teesdalia. * /Ethionema. Thlaspi. • Capsella. Cakile. Isatis. Anastatica. Tribe III. SPIROLOBEJE, D.C . Cotyledons linear, coiled transversely upon themselves. Radicle dorsal. PRINCIPAL GENERA. * Bunias. * Schizopetalurrr. Tribe IV. D IPL ECO LOB EJE, D.C. Cotyledons linear, folded twice transversely upon themselves. Radicle dorsal. PRINCIPAL GENERA. Coronopus. Sutmlana. * Ileliophila. CLASSIFICATION OF CEUCIFERaE. By Bentham and Hooker fil. Series A.— Siliqua long or short, dehiscent throughout its length. Valves con- tinuous within, rarely septiferous, plane or concave, not compressed, in a perpendicular direction to the plane of the septum. Septum the same breadth as the valves. Tribe I. Arabidea:. — Siliqua narrow, long, seeds often 1-seriate. Cotyledons accumbent. Matthiola, Chair antlms, Atelanthera, Nasturtium, Barb area, Arabis, Car- clamine, Lonchophora, Anastatica, &c. Tribe II. Alyssineal — Siliqua often short, large, seeds 2-seriate. Cotyledons accumbent. Lunaria, Farsetia, Aubrietia, Vesicaria, Alyssum, Draba, Erophila, Coch- lear ia, &c. Tribe III. Sisymbrie^e. — Siliqua narrow, long, seeds often l-seriate. Cotyle- XIY. CRUCIFERS. 229 dons incumbent, straight or coiled, or transversely folded. Sddzopetalum, Hesperis, Malcolmia, Streptoloma, Sisymbrium, Conringia, Erysimum, Ileliophila, &c. Tribe IV. Cameline.e. — Siliqua short or long, oblong, ovoid or globular. Seeds 2-seriate. Cotyledons incumbent. Stenopetalum, Braya, Camelina, Tetrapoma, Subularia, &e. Tribe V. Brassice^e. — Siliqua short or long, dehiscent throughout its length, or at the top only. Cotyledons folded longitudinally. Brassica, Sinapis, Erucas- trum, Hirschfeldia, Diplotaxis, Eruca, Moricandia, Vella, Carr icht era, Succovia, &c. Series B. — Siliqua short, dehiscent throughout its length. Valves continuous within, very concave, compressed in a direction perpendicular to the plane of the septum. Septum usually very narrow. Tribe VI. Lepidine.e. — Cotyledons incumbent, straight or bent, or condupli- cate longitudinally, or coiled upon themselves. Capsella, Senebiera, Lepidium, jEtkionema, Campyloptera, &c. Tribe VII. Thlaspide.e. — Cotyledons accumbent, straight. Cremolobus, Bis- cutella, Megacarpcea, Thlaspi, Iberis, Teesdalia, Hntchinsia, Iberidella, &c. Series C. - Siliqua short (rarely long), indeliiscent, not jointed, often crustaceous or bony, 1 -celled, 1- (rarely 2-) seeded, or 2-4-celled with parallel 1-seeded cells. Pedicels often very slender, drooping in fruit. Seed often furnished with a thin albumen ; testa not mucilaginous. Tribe VIII. Isatidea:. — Characters of the series. Peltaria, Clypeola, Tsatis, Tauscluria, Xeslia, Calepina, Myagrum, Euclidium, Bunias, Zilla, &c. Series D. — Siliqua transversely 2-jointed, short or long ; lower joint indeliiscent, empty or longitudinally 2-celled, 2-oo-seeded; upper joint indeliisceut, 1-celled, 1-seeded, or 2-oo-celled, with parallel or superimposed cellules. — Siliqua always upright or nearly so, pedicel straight. Tribe IX. Cakiline.e. — Characters of the series. Crmnbe, Muricaria, Rapis- 1mm, Caliile, Enarthrocarpus, Erucaria, Morisia, &c. Series E. — Siliqua long, not jointed, indeliiscent, eylindric or moniliform, 1- celled, many-seeded, or with several 1-2-seriate, 1-seeded cellules, separating when ripe. Tribe X. Raphane/E. — Characters of the series. Raphanus, Raffenaldia, Anchonium , Parlaioria, &c. A Cruciferous flower is not strictly symmetrical in relation to the floral axis. The arrangement of the calyx and corolla at fir>t appears to follow the quaternary type, four sepals alternating with four petals; but t he slightest examination shows that the two antero-posterior sepals are inserted lower than the two lateral ; the petals, however, evidently form a single whorl. The exceptional structure of the nndroecium has given rise to many contradictory theories. The two lateral stamens are shorter and lower than the other four, which are in pairs, and alternate with the two lateral. It is these two pairs of long stamens which have especially exercised the sagacity of botanists. Pe Candolle, and after him Seringe, Saint-I lilaire, Moquin- 1'andon, and V ebb, admit the quaternary type for the calyx and corolla, and extend it equally to the androecium, where, according to them, each pair of long stamens represents a 230 XIV. CRUCIFERiE. double stamen. This theory does not account for the lower position of the two antero-posterior stamens relatively to the lateral sepals, nor for the situation of the short stamens opposite to the carpels, which would be contrary to the laws of alternation. Later botanists (Lestiboudois, Kunth, Lindley, and then J. Gay, Schimper, Wydler, Krause, Duchartre, Chatin, Godron) advocate an entirely different theory. They do not admit the doubling of the long stamens ; they affirm, contrary to the organogenic observations of Payer, that in the very young flower each group of twin stamens springs from two distinct protuberances, separate from each other and exactly opposite to the petals. They consider the androecium to be composed of two quaternary whorls: 1st, the lower whorl, represented by the two lateral stamens only, and which is an imperfect one, from the constant arrest of two stamens which should be developed in front of the antero-posterior sepals ; 2ndly, the upper whorl, composed of the four large stamens which were originally developed opposite to the petals, but which approach each other afterwards, so as to form two pairs. As to the pistil they consider it to be normally formed of four carpels opposite to the four sepals, an arrangement which is observable in the genus Tctrapoma. Thus the original plan of the flower may, according to them, be formulated as follows : four sepals, four petals, four outer stamens, of which two are never developed, four inner stamens, and four carpels, of which the two antero-posterior are developed in Tetrapoma only ; all these whorls exactly alternating witli each other. More recently, A. G. Eichler has published (in 18G5), in the ‘ Flora of Brazil,’ the result of his researches. He affirms, with Be Candolle, that each pair of long stamens results from the splitting up, or chorisis, of a single stamen, because, according to his organogenic researches, the protuberance from which each pair of stamens springs is originally simple, and only divides afterwards. With regard to the two-celled anthers of the twin stamens, which, according to the partisans of the non-development theory, ought to be one-celled, Eichler avers that this objection is valueless ; that the question here is not of a doubling, which divides an entire organ in two halves ; but of a chorisis, which results in a sort of multiplication of the organs ; and that, further, in the genus AtelantJiera the long stamens are constantly one-celled. With regard to the polyandry observable in some species of Meyacarpcea, in which the androecium is composed of 8-16 stamens, we may, according to Eichler, admit that it results from an unusual multiplication of the long stamens, and that the chorisis has been extended to the lateral stamens. We must, besides, remember that this tendency to multiplication (which is really exceptional, and not found in all the species of Meyacarpcea) also appears in Cleomea ■, a tribe of Cappnridece, a family closely allied to Cruciferee ; their androecium, which is normally hexandrous, and arranged like that of Cruciferee, presents in some species of Cleome four stamens, and in Polanisia eight or oo, collected in antero- posterior bundles, the two lateral remaining solitary, or very rarely being represented by stamens. According to Eichler’s organogenic observations, the anterior sepal appears first, and then the pos- terior, after which the two lateral sepals .appear together ; the four petals then appear simultaneously, and occupy four points, diagonally crossing the lateral sepals. The androecium first appears as two large obtuse gibbosities, opposite to the lateral sepals, which remain simple, and become the short stamens. Soon after their appearance the two similar antero-posterior gibbosities appear, inserted higher than the preceding, larger and more obtuse ; and these, enlarging more and more, gradually divide into two protuberances, which finally become two long stamens. Never, says Eichler (who energetically maintains his opinion against that of Duchartre, Chatin, and Krause), never are these stamens, when young, exactly opposite to the petals ; they are, on the contrary, then nearer to the median line, an arrangement which is still more obvious in some hexandrous Capparideee. He affirms, contrary to the observations of Chatin, that in Cruciferee with fewer than six stamens ( Lepidmm ricderale , latifolium, viryinianum, &c.) the lateral stamens are inserted lower than the two antero-posterior, which proves that the latter do not belong to a lower whorl, as the incomplete-development theory demands. Eichler consequently regards the theory of chorisis as true, but his application of it differs from that of De Candolle, in that the latter makes three tetramerous whorls (androecium, corolla, and calyx), while Eichler only admits one, i.e. corolla, and assigns a binary type to the andrcecium and calyx ; and his view of the composition of the flower would be : — two antero-posterior sepals, two lateral sepals, four petals diagonally crossing the lateral sepals, two short lateral stamens, two antero-posterior stamens (each doubled), and two lateral carpels valvately justaposed. The family of Cruciferee is closely allied to Cuppa richer?, Papavcraceee, and Fumariacece (see these XIY. CRUCIFERS. 231 families). It also approaches Resedaccee in habit, aestivation, hypopetalism, parietal placentation, curved ovule, and exalbuminous seed. Cruci/era are dispersed over the world ; reaching, in the polar regions and on the highest mountains, the limits of phoenogamic vegetation. Most of the genera and species inhabit the South of Europe and Asia Minor; they are rarer in the tropics, in extra-tropical and temperate North America. The name Antiscorbutics, given by Crantz to the plants of this family, designates their most important property. They contain, besides oxygen, hydrogen, and carbon, a notable quantity of sulphur and azote. 'These elementary bodies form by their various combinations mucilage, starch, sugar, a fixed oil, albumine, and especially the elements of a peculiar volatile and very acrid oil, to which Crucifers owe their stimu- lating virtue. When dead, these ternary and quaternary products rapidly decompose to form binary compounds, and especially hydro-sulphuric acid and ammonia, the foetid odour of which is insupportable. The principal edible species is the Cabbage ( Brassica oleracea), which has been cultivated from the most ancient times, and which yields varieties or races known under the names of Colza, Kail, Cabbage, Savoy, Cauliflower, Broccoli, & c. The Rape {B. Rapa ) and the Turnip ( B . Nap us ) have a fleshy root, rich in sugar and albumine ; and their seeds con- tain a fixed oil, used for burning. The Radish ( Raphanus ), of which two species are cultivated, the one with a root black outside and white within ; the other (Small Radish), with a white, pink, or violet root, is used as a condiment. At the head of the antiscorbutic Crucifers must be placed the Cochlearia officinalis, a biennial herb which inhabits the shores of the seas and salt lakes of the North of Europe; its congeners of the European Alps, the Mediterranean region, Asia, and North America, possess similar properties, but in a less degree. The Garden Cress ( Lepidium sativum) and Water Cress ( Nasturtium officinale) are also used as condiments. Lepidium oleraceum, which grows on the shores of New Zealand, is an excellent antiscorbutic, and also an agreeable vegetable, which has proved invaluable to seamen ; Cardamine kirstda, amara and protends, indigenous species, which rival Water Cress, have an acrid and slightly bitter taste ; C. asarifolia replaces Cochlearia in Piedmont ; C. nasturtioides is eaten in Chili as cress is in France ; C. maritima, which grows on the shores of the Atlantic and Mediterranean, has fallen into disuse ; but C. americana has in North America and the Antilles a great reputa- tion as an antiscorbutic. Barbarea vulga- ris (Winter Cress), an indigenous plant, of an acrid and piquant taste, has been unjustly abandoned. Sisymbrium officinale, another Bose of Jericho . ]. . /» i (Anastatica hierochuntica.) common indigenous species, was tonnerly used as a cough medicine. S. A /liana, whose bruised leaves exhale a strong odour of garlic, was long employed ns a vermifuge, diuretic and depurative. Sea-kale ( Crambe maritime), which grows on the shores of the Atlantic and British Channel, is now 202 XY. CAPPAEIDEvE. cultivated; its spring slioots fire blanched, and when cooked have somewhat the taste of Cauliflowers. C. tatarica inhabits the sandy plains of Hungary and Moravia ; its large root, commonly called Tartar bread, is eaten, cooked or raw, seasoned with oil, vinegar, and salt. Black Mustard (Sinapis nigra ) grows in fields throughout Europe. Its powdered seeds are used as a condiment and rubefacient ; it contains a fixed and very acrid volatile oil, to which latter its pungent quality is due. But this volatile oil does not exist thei e ready formed ; it is produced by the action of a peculiar albumine ( myrosine ) on the myronic acid contained in the seed ; it is this acid which becomes the volatile oil ; and to effect this change the albumine must be soaked in cold water, which, by dissolving it, renders it fit to change the acid into a volatile oil. White Mustard (S. alba ) contains principles analogousto those of the preceding species, the mucilaginous testa of the seed being superadded to an active principle, which stimulates the digestive organs. S. cliinenm is valued in India as much as S. nigra. Horseradish ( Cochlearia rusticana or Annoracia) is cultivated in all gardens of central Europe; its root contains much sugar, starch, fatty oil, and albumine, and is eaten as a condiment. The acrid principle which it contains, and which is developed by the action of water, like that of Sinapis, gives it antiscorbutic properties. The seeds of the Wild Badisk ( Haphanistrum ar reuse), of F.ruca sativa, of Mithridate Mustard ( Thlaspi arvense ), and of Honesty ( Lunaria rediviva ), indigenous plants, have fallen into disuse, in spite of their stimulating acridity. Those of Camelina sativa contain a fixed oil, used for burning. The leaves of Woad (Isatis tmctorui), a herb common throughout France, yield a blue dye, similar to indigo, but inferior, with which the Piets and Celts used to paint themselves ; and from these early times blue has remained the national colour for our royal robes. Anastutica 1 tier och untie a is a small annual which grows in sandy places in Arabia, Egypt, and Syria. Its stem branches from the base, and bears sessile flowers, which give place to rounded pods ; as these ripen, the leaves fall, the branches harden, dry, and curve inwards, and the plant contracts into a rounded cushion, which the autumn winds soon uproot, and carry even to the sea shore. Thence it is brought to Europe, where it fetches a high price, on account of its hygrometric properties; if the tip of its root be placed in water, or even if the plant be exposed to damp, the pods open and the branches uncurl, to close afresh when dry. This peculiarity, together with its native country (whence its name, Bose of Jericho), has given rise to the popular superstition that the flower expands yearly on the day and hour of Christ’s birth. Women sometimes place the plant in water at the commencement of labour, hoping that its expansion may be the signal for their deliverance. Many other plants possess a similar hygrometric property ; 1 as certain Composite v of the genus Asteriscas, Plant ergo cretica, Selagineda circinalis, & c. XY. CAPPAR1DEAE. (Capparides, Jussieu. — Capparidea:, Ventenat. — Capparidace^e, Lindl.) Sepals 4-8, free or coherent. Petals liypogynous or perigynous, 4-8 or 0. Stamens usually 6, or oo, hypogynous or perigynous. Ovary usually stipitate and 1-celled, with parietal placentas. Ovules curved. Fruit a siliquose capsule, or berry. Seeds exalbuminous. Embryo arched or folded. Herbaceous annuals, or rarely perennials, often shrubby, sometimes arborescent [Morisonia, Cratceva, &c.), with watery juice. Stem and branches terete, glabrous, glandular, cottony, or rarely scaly ( Atamisquea , Capparis). Leaves alternate, or very rarely opposite ( Atamisquea ), petioled, simple or digitate, leaflets entire, very rarely toothed {Cleome), orlobed ( Thylachium ) ; stipules usually Oor inconspicuous, setaceous * In England, Mesembryanthemum capsules are sold as the Rose of Jericho ; as is the Mexican Selaginella lipidoplt glia. — En. XV. CAPPARIDEiE. 233 or spinescent ( Capparis ). Flowers £ , very rarely dioecious (Apophyllum), regular nr sometimes sub-irregular, axillary, fascicled, solitary, or in a terminal raceme or corymb. Sepals 4-8, sometimes free, 1-2-seriate, subequal or unequal ; sometimes variously connate in a tubular calyx, sometimes closed and opening irregularly ( Cleome , Thylachium, Steriplioma), aestivation imbricate, or rarely valvate. Petals usually 4, rarely 0 ( Thylachium , Boscia, Xicb uhria, See.), very rarely 2 ( Cadaba , Apophyllum ) or 8 (Tovar lu), sessile or clawed, sestivation imbricate or twisted, very rarely valvate (Ritchica), inserted on the edge of the torus. Torus short or long, symmetrical or unsymmetrical, or discoid, or prolonged behind into an appendage, or depressed, or narrowed into a pedicel, or lining the bottom of the calyx, edge glandular or fringed. Stamens inserted at the base or top of the torus, usually G, rarely 4-8 (Polanisia, 234 XV. CAPPARIDEvE. Caclaba), often in multiples of 6 or 8, all fertile, or some sterile ( Dactylcena , Cleome, Polanisia, &c.) ; filaments filiform, sometimes thickened, at the top (Cleome), free or united to the torus, or connate at the base ( Gynandropsis , Cadaba, Boscia, &c.) ; anthers introrse, 2-celled, oblong or ovoid, basi-dorsally fixed, dehiscence longi- tudinal. Ovary usually stipitate, rarely sessile, 1-celled, or sometimes 2-8-celled by false septa springing from the placentas ( Morisonia , Capparis, Tovaria, &c.) ; style usually short or 0, simple (3, and hooked in Roydsia ) ; stigma usually orbicular, sessile ; ovules numerous, fixed to parietal placentas, campy lotropous or semi-anatro- pous, rarely solitary ( Apophyllum ). Fruit a capsule, siliquose and 2-valved, or a berry, very rarely a drupe (Roydsia). Seeds reniform or angular, often sunk in the pulp of the fleshy fruits, exalbuminous, or very rarely albuminous ( Tovaria ) ; testa smooth, coriaceous or crustaceous. Embryo curved or arched ; cotyledons incumbent or accumbent, folded, coiled or induplicate, rarely flat. Tribe I. CLEOME JE. Fruit a 1-celled capsule, usually siliquose. Mostly annual herbs. PRINCIPAL GENERA. * Cleome. Isomeris. ’Polanisia. * Gynandropsis. Tribe II. CAPPAREJE. Fruit a berry or drupe. Shrubs or trees. PRINCIPAL GENERA. •Morisonia. Mterua. Boscia. Roydsia. Ritchiea. Niebuliria. Cadaba. ’Capparis. Tovaria.1 Capparidece approach Cruciferce in the number of sepals, petals and stamens, the {estivation, the ovary with parietal placentation, with or without a false septum, the campylotropous ovules, siliquose fruit, exalbuminous seed, curved embryo, and acrid volatile principles. They scarcely differ, except in the sometimes perigynous insertion, the never tetradynamous stamens, the usually stipitate ovary, and the often fleshy fruit. They are equally closed}' allied to Moringece (which see). They also resemble Tropceolece in their habit, exalbuminous seed, and acrid principle. Resuclacece are separated only by their habit and the structure of their fruit. Capparidece are distributed nearly equally over the tropical and subtropical regions of both hemispheres ; the frutescent species are mostly American.* The herbaceous capsular Capparidece rival Cruciferce in their stimulating properties, which depend on an acrid volatile principle. The species with fleshy fruit, which are mostly woody, possess this acridity in their roots, leaves and herbaceous parts; their bark is bitter, and some have a pleasant fruit. Cleome gigmtea is used as a rubefacient in tropical America. The herbage of Gynandropsis pentaphylla , a native of the tropics in both worlds, has the qualities of Cocldearia and Lepidium , and its oily seed is as acrid as that of Sinapis. Polanisia fell inn and icosandra, natives of India, are epispastics and vermifuges; the fresh juice is used as a condiment. Cleome heptaphylla and polygama, American plants, have a balsamic odour, whence thev have been reputed vulneraries and stomachics. Polanisia graveolens, a native of North America, and a very foetid plant, possesses the same qualities as Chenopodium anthelminthicum. Among the Capparidece with fleshy fruit, Capparis spinosa must rank first. It is a shrub of the Mediterranean region, the bitter, acrid and astringent bark of whose root has been esteemed from the most ancient times for its aperient and diuretic qualities. The flower-buds, preserved in salt and vinegar, 1 Tovaria has been transferred to Papa reracece by Eichler. — En. * As many are natives of the old world as of the new. — Ed. XVI. MOBINGEiE. are known ns Capers, and inucli used as a condiment. Other species of Capparis from * ireece, Barbary and Egypt, are similarly used. Capparis soda <1 a is a native of tropical Africa; the n egresses eat its acidulous and stimulating fruit, which they believe will make them prolific. The bitter and astringent bark of Cratatva Tapia and yynandra, American trees, is reputed a febrifuge. Their fruit, which has an oily odour, i9 eatable. C. Xurvala , of tropical Asia, produces succulent and vinous berries; its acidulous leaves are diuretic. XVI. MORINGEsE, Endlicher . 2:16 XVII. RESEDACEiE. Trees. Leaves 2-3-impa.ripinnate ; leaflets very caducous ; stipules deciduous. Flowers $ , irregular, in panicled racemes. Calyx 5-partite, with oblong subequal segments, imbricate in bud. Petals 5, inserted on tlie calyx, linear-oblong, the two posterior ratlier the longest, ascending, imbricate in bud. Stamens 8-10, inserted on a cup- shaped disk lining the base of the calyx ; filaments flattened at the base, connivent in a tube which is split behind, united above the middle, free above and below, unequal, the posterior longest, all fertile, or those opposite the calyx-segments shorter and imperfect; anthers introrse, 1 -celled, ovoid-oblong, dorsally fixed, dehiscence longitudinal. Ovary pedicelled, 1 -celled, with three parietal slender placentas ; style terminal, simple, thickened [tubular, open at the truncate top] ; ovules numerous [bi-seriate] , pendulous, anatropous, [raphe ventral]. Capsule siliquiform, 3-many-angled, torulose., 3-valved, valves with the placentas on the middle. Seeds 1-seriate, separated by spongy septa, ovoid-trigonous, angles apte- rous or winged ; chalaza apical, corky. Embryo straight, exalbuminous ; cotyledons plano-convex, fleshy [plumule many-leaved] ; radicle very short, superior. ONLY GENUS. Moringa. The genus Moringa has been by some botanists placed in Papilionacece on account of a slight resem- blance in the flower, which, however, indicates no true affinity. Hooker [following Lindley] compared it with Violariea, which resemble it in their irregular flower with unequal dorsal petal, in their perigynous insertion, tubular style, one-celled ovary with three parietal nerviform placentas and anatropous ovules; but Moringeee are widely separated by habit, one-celled anthers, and exalbuminous seeds. It is amongst Capparidece that we must search for the real affinities of Moringem, through their polypeta'lous imbricate corolla, perigynism, stamens more numerous than petals, stipitate one-celled ovary, parietal placentation, siliquose capsule, exalbuminous embryo, alternate leaves and caducous stipules ; to which must be added the acrid root, leaves, and bark, which are common to both families, recalling the smell and taste of the Horse-radish, and associating Moringa also with Cruciferce, themselves so closely allied to Capparideee. Moringccc are tropical Asiatic, Arabian and Madagascan trees. The best known species is Moringa aptera, of which the seed, called Ben nut, yields a fixed oil, of much repute in the East, because it does not become rancid [and used by perfumers and machinists from its not freezing. The root of M. pterygosperma is used as a stimulant in paralysis and intermittent fevers; and a colloid gum, like tragacanth, exudes in great quantities from its bark. — Ed.]. XVII. RESEDA CEAE, D.C. Calyx 4--8-partite. Petals generally hypogynous, 4-8 ( rarely 2 or 0). Stamens 3- 40, inserted within a fleshy disk. Carpels usually united into a 1- celled ovary. Fruit a capsule or berry. Seeds exalbuminous. Embryo curved. Annual or perennial herbs, sometimes undershrubs, rarely shrubs ( Ochradenus ), juice watery, stem and branches terete. Leaves scattered, simple, entire, 3-fid or pinnatipartite ; stipules minute, gland-like. Flowers $ , rarely diclinous, more or less irregular, in a raceme or spike, bracteate. Calyx persistent, 4-8-partite, more or less unequal, testivation imbricate. Petals alternate with the calycinal lobes, 4- 8, rarely 2 ( Oligomeris ), or 0 ( Ochradenus ), hypogynous, or rarely perigynous ( Kandonia ), entire, or 3- oo-fid, simple, or furnished with a basal scale, free, or rarely XVII. RESEDACEiE. 237 Mignonette. (lined a odor ala.) Reseda. Flower cut vertically (mag.). Reseda. Flower seen in front (mag.). Reseda. Flower seen at the back (mag.). Ocliradetvus. Fleshy fruit (mag.). Reseda. Flower without the petals (mag.;. ^jflHEnrs. Ran don ia africana. Diagram. Reseda. Ripe fruit. Reseda. Fruit laid open (mag.). Reseda. Reseda. Reseda. Reseda. Reseda. Reseda. Stamen, inner Seed, entire and cut One of the posterior One of the lateral One of the anterior Transverse section face (mag.). vertically (mag.). petals (mag.). petals (mag.). petals (mag.). of ovary (mag.). sub-coherent (Oligomer is), equal or unequal, open in aestivation. Disk hypogynous, sessile or stipitate, more or less concave, fleshy, often prolonged behind, rarely 0 (Oligomeris). Stamens 3-40, inserted within the disk, rarely perigynous ( Randonia ), not covered by the petals in aestivation ; filaments equal or unequal, often pendulous, free or rarely connate at the base ( Oligomeris ) ; anthers introrse, 2-celled, dehiscence longitudinal. Ovary sessile or stipitate, of 2-G carpels, sometimes coherent into a 238 XVIII. CISTINEiE. l-celled ovary, closed or gaping at the top, with many-ovuled parietal placentas, more rarely distinct, or sub-coherent at the base, many-ovuled and with basilar placentation, gaping ( Caylusea ), or 1-2-ovuled and closed (Astrocarpus) ; stigmas sessile, terminating the 2-lobed top of the carpels ; ovules campylotropous or lialf- anatropous. Fruit usually a capsule, indehiscent, closed or gaping at the top, rarely a berry (Oehradenus) , sometimes follicular ( Astrocarpus ). Seeds reniform, exalbuminous, epidermis membranous, adhering to the testa, or detaching when ripe ; testa crustaceous. Embryo curved or folded ; cotyledons incumbent ; radicle near the hilum. GENERA. Astrocarpus. Eandonia. Caylusea. *Keseda. Oehradenus. Oligomeiis. The small family of Resedacece is allied to Cruciferce and Capparidece (see these families). It also approaches Moringece in its irregular polypetalous flowers, fleshy disk, stamens more numerous than the petals, parietal placentation, capsular fruit, exalbuminous embryo, alternate stipulate leaves, and finally in the acrid principle found in the root of several species ; but Moringece are separated by their habit, arborescent stem, two- three-pinnate leaves, straight embryo, filaments united into a tube above the middle, and one-celled anthers. Most Resedacece grow in southern Europe, northern Africa, Syria, Asia Minor and Persia. Some roach the Indian frontier ; a few inhabit central and northern Europe. Three species belong to the Cape of Good Hope. Resedacece, so named because sedative qualities were formerly attributed to them, are no longer used in medicine, in spite of the acridity of their root, which contributes, with other characters, to bring them near Cruciferce and Capparidece ; the root of Reseda lutea in particular has the odour of the Radish, and was long reckoned an aperient, sudorific and diuretic. Dyer’s Weed (R. Inteola ) has intensely bitter leaves, and all parts yield a yellow dye much in demand. Mignonette {R. odorata), a plant whose origin was long considered unknown, but which Griffith asserts to be a native of Affghanistan, is extensively cultivated for its sweet scent. XVIII. CISTINEEE. (Cisti, Jussieu. — CistoidejE, Ventenat. — Cistinea:, D.G. — Cistacea:, Lindl.) Petals 5-3, hypogynous. Stamens oo, hypogynous. Ovary l-celled, with 3-5 parietal placentas. Ovules orthotropous. Style simple. Capsule with the placentas on the centre of the valves. Seeds albuminous. Embryo bent, coiled or folded. Herbs, undershrubs, or shrubs ; stem and branches terete or sub-tetragonous, often glandular, pubescent or tomentose, witlx simple or sometimes stellate hairs. Leaves simple, opposite, rarely alternate, sometimes whorled, entire, sessile or petioled ; stipules foliaceous, free at the contracted base of the petiole, or 0 when the petiole is amplexicaul. Flowers $ , regular, terminal, solitary, or in cymes or unilateral racemes, peduncle outside of the axil of the bracts. Sepals 3, t wisted in bud, often furnished with 2 usually smaller calyciform bracts. Petals hypogynous, 5, very rarely 3, or 0 ( Lecliea ), twisted in aestivation in an opposite direction to the sepals, scarcely clawed, spreading, very fugacious. Stamens oo, hypogynous ; fila- ments free, filiform ; anthers 2-celled, introrse, ovoid or lanceolate, dehiscence longitudinal. Ovary free, sessile, l-celled, or with 3-5 imperfect cells formed by XVIII. CISTINEiE. 239 Ilelianthemum guttatum. Cist us Ladanum. Seed, entire and cut J/elianthemum. vertically (mag.). Pistil (mag.). Ilelianthemum. Flower. Ilelianthemum. Flower without its corolla (mag.). Ilelianthemum. Seed (mag.). Ilelianthemum* Diagram. Ilelianthemum. Stamen (mag.). Ilelianthemum. Fruit (mag.). placentiferous septa only united at the bottom of the ovary ; 'placentas 3-5, parietal, or fixed to the half-septa, 2- oo-ovuled ; style simple ; stigmas 3-5, free, or united in a head ; ovules with short or longer funicles, usually ascending, orthotropous, or half- anatropous. Capsule membranous or coriaceous, opening to the base, or above only, into 3-5 half- placentiferous valves. Seeds with crustaceous testa, and floury or sub-horny albumen. Emrryo excentrio or sub-central, bent, coiled, or folded, rarely nearly straight (Lechea) ; liilum and chalaza contiguous, diametrically opposite to the radicle, except in some species (Lecliea), in which the funicle is adnate to the seed. GENERA. * Cistus. * Helianthemum. Iludsonia. Leclica. CUtinetr are near Droscracrtr , Violariea and Bixinece in polypetalism, placentation, capsular fruit with seminiferous valves and albuminous seeds; they are polyandrous like Bi.cinea and Dioruea, and the 240 XIX. VIOLARIEiE. albumen of these latter is floury. But, besides the different habit, Droseracecc have extrorse anthers, auatropous ovules, and a straight embryo; Violanece proper have irregular imbricate isostemouous flowers, anatropous ovules, straight embryo, and fleshy albumen ; Bixinecc scarcely differ save in the anatropous ovules. There is a decided affinity between Cistinecc and Hypericinea (which see). They have also been compared with Capparidecc, from which, however, they differ in habit, fugacious petals, albuminous seed, etc. Cistinecc mostly inhabit the Mediterranean region ; some grow in North America ; a very few in central Europe and eastern Asia, and still fewer in South America. The herbage of Cistinecc is slightly astringent ; some Cisti yield a balsamic resin, named ladanum, which is used in perfumery. Helianthemum vutyare, a species of central Europe, is sometimes administered as a vulnerary. XIX. VIOL All lEyE. {Geneva Cistis affinia, Jussieu. — Ionidia, Ventenat. — Violariea;, D.C. — Violace.e, Lindl. — Violea:, Bv.) Petals 5, more or less unequal, hypogynous or slightly perigynous, imbricate. Stamens 5, insertedlihe the petals. Ovary \-celled, placentation parietal. Style simple. Fruit a capsule with the placentas on the centre of the valves, or rarely an indeliiscent berry. Seeds albuminous. Embryo straight. Herbs, undershrubs, or shrubs, rarely sarmentose ( Agation ). Leaves alternate, rarely opposite ( Ionidium , Alsodeia), simple, petioled, usually involute in bud, some- times arranged in radical rosettes, and spotted with brown below {Viola cotyledon and rosulata) ; stipules free, foliaceous, or small, usually deciduous in the woody species. Flowers § , often dimorphous and apetalous, irregular or sub-regular, pentamerous, or very rarely tetramerous {Tetrathylacium) , axillary, solitary or in a cyme, panicle or raceme ; pedicels usually 2-bracteolate. Sepals 5, distinct, or connate at the base, usually persistent, equal or unequal, aestivation imbi’icate. Petals 5, liypogynous or slightly perigynous, alternate with the sepals, aestivation imbricate and convolute, sometimes equal or subequal, clawed, connivent, or cohering in a tube at the base {Paypayrola, Tetrathylacium, Gloiospermum, Sauvagesia ) ; sometimes very unequal, the two upper exterior, the two lateral within the others, and not clawed, the inner (lowest by the reversal of the flower) larger, clawed, and prolonged into a hollow spur below its insertion. Stamens 5, inserted on the receptacle or bottom of the calyx ; filaments very short, dilated, free, or sometimes connate at the base {Leonia, Gloiospermum, Alsodeia, &c.) ; anthers introrse, 2-celled, connivent, or coherent round the ovary, cells adnate by the back to the inner surface of the connective, and opening by a longitudinal slit ; connective prolonged above the cells in a membranous appendage, those of the 2 or 4 lower stamens (in the irregular flowers) gibbous and glandular on their dorsal face, or prolonged into filiform spurs, which are included in that of the lower petal. Ovary free, sessile, often girt with a basal annulus, 1-celled ; placentas parietal, slender, generally 3, rarely 2 {Hymen- antliera), or 5 {Melicytus) , or 4 {Tetrathylacium) ; style simple, sometimes thickened at the top, or bent with a dorsal stigmatie cavity, or of various form, sometimes XIX. VIOLARIEiE. 241 Heartsease. Seed, entire and cut vertically (mag.). Heartsease. Transverse section o£ Heartsease, ovary (mag.). Young fruit. Heartsease. Pistil. Heartsease. Appendiculate stamen (mag.). subulate with a terminal stigma, rarely 3-5-fid, or style 0 with 3-5 free stigmas (Mclicytus) ; ovule# anatropous, usually many, very rarely 1-2 (Tsodendrion, Hymen- anthera, Scyphellandra) . Fruit a capsule, often opening elastically by as many seminiferous valves as there are placentas; or an indehiscent berry ( Leonia , Tetra- £ 212 XIX. VIOLAEIEiE. thylacium, Melicyius, llymenanthera) . Seeds ovoid or subglobose; testa crustaeeous or membranous, raplie sometimes thickened and separating when ripe ; albumen fleshy, copious. Embryo axile, straight ; cotyledons fiat, broad or narrow ; radicle cylindric, near the hilum. Tribe I. VIOLEAE. Corolla irregular, lower petal dissimilar. Fruit a capsule. PRINCIPAL GENERA. * Viola. Ionidium. Agation. Tribe II. PA YPA YR0LE2E. Petals subequal, claws contiguous, and sub-coherent in a tube. Fruit a capsule. PRINCIPAL GENERA. Isodendrion. Faypayrola. Amphirrliox. Tribe III. ALSODINEJE. Petals equal or subequal, very shortly clawed. Fruit a berry or capsule. PRINCIPAL GENERA. Alsodeia. Leonia. llymenanthera. Melicytus. Sauoagesiece, of which we have given a figure near Viola cure, are so closely allied to them that several botanists have united them. They are distinguished only by the presence of five- oo staminodes placed outside the stamens, and by the three valves of the capsule being seminiferous on their edges. Violaricce also approach Droscraeece in isostemony, the one-celled ovary with parietal placeutation, the capsule with placentiferous valves, and the albuminous seed ; but in Droscraeece the anthers are extrorse, the styles are distinct, the embryo is minute and basilar. They have the’ same affinities with Frankeniaeete, which have also a simple style and an axile embryo, but their calyx is tubular and elongate, their anthers are extrorse, their ovules ascending, their leaves usually opposite and exstipulate. They are also connected with Cistinece (which see). The herbaceous species of the tribe Violece principally inhabit the northern hemisphere; they are rare in the temperate regions of the southern hemisphere and in the tropics ; the woody species of this tribe are chiefly natives of equatorial America. The other tribes inhabit the intertropical region of both worlds, •and especially of America. Hymmanthera inhabits Australia and New Zealand. The active principle of Violece ( violine ) is a substance analogous in properties to emetine (see Cepheelis ), the emetic and laxative properties of which it shares. Violine is principally found in the root and rootstock, from which, as well as from the leaves, has also been extracted a peculiar acid ; and the scented petals contain a volatile oil. The root of the European violets, and especially of the Sweet Violet ( Viola odorata), is slightly bitter and acrid, recalling the taste of Ipecacuanha ; the flowers, which are sweet- scented butnauseous in taste, are used in syrup and infused as emollients and cough-mixtures. The stem and leaves of the Wild Pansy (V. tricolor ) are frequently administered as a depurative tisane in cutaneous disorders. The American Violets (V. pedata and palmata ) are similarly employed. V. ovata is a reputed specific against rattlesnake bites. Some species of Ionidium , in South America, are used as substitutes for Ipecacuanha; the root of I. Ipecacuanha especially, the "White Ipecacuanha of commerce, is a powerful emetic, peculiarly suited to lymphatic temperaments. The root of Anchietea salutaris, a small Brazilian tree, is purgative, and useful, like our wild Pansy, in skin affections. Ionidium microphyllum, a species XXI. BIXINEJX 243 growing at the foot of Chimborazo, is supposed to yield the root called Cuichuncliulli, prescribed by the Americans for tubercular elephantiasis. The medical properties of Ahodinecc are very obscure, and entirely differ from those of Violecc. The leaves and bark of Ahodcin Cttspu, which grows in New Granada, are bitter and astringent. The leaves of .1. custuneofolut and Lobuloho , Brazilian species, are mucilaginous, and are cooked and eaten by the negros. XX. CA NELL A CEJE. 1 Olabrous aromatic trees. Leaves alternate, quite entire, penniuerved, pellucid- dotted ; stipules 0. Flowers g , regular, in terminal, lateral, or axillary cymes ; l rad coles ( sepals of some authors) 3, orbicular, close under the calyx, much imbricate, persistent ; sepals ( petals of some) 4-5, free, thick, deciduous, much imbricate, the inner narrowest. Petals ( petaloid scales of some) as many as the sepals, thin, imbricate or 0. Stamens hypogynous ; filaments connate into a tube ; anthers 20 or fewer, linear, adnate to the outer surface of the tube, longitudinally 2-valved. Disk 0. Ovary free, 1 -celled ; placentas 2-5, parietal, 2- or more-ovuled ; style short, thick; stigmas 2-5; ovules horizontal or ascending, almost anatropous. Berry" indehiscent, 2-many-seeded. Seeds with a shining crustaceous testa; albumen oily and fleshy. Embryo straight or curved ?, radicle next the liilum ; cotyledons oblong. GENERA. Canella. Cinnamodendron. Cinnamosma. A very small order, placed by .Martins near Guttiferce, included bv Lindley under Pitiosporece , and placed by .Miers near Magnoliacea ; but according to Bentham and Booker til. it has less affinity with any ■ •I the above orders than with J iulunece and Bixinea, differing from the lirst of these chiefly in the absence ot stipules, aromatic properties, and more numerous anthers, which are extror.se, and adnate to the staminal column. Cnnellaccte, ot which only five species are known, are natives of tropical America, with one Madagascan species ; all are highly aromatic. The Canella bark of commerce is the Wild Cinnamon of the West Indies, and is a well-known carminative and stomachic; it is exported from the Bahamas as ‘ White-wood bark,’ on account of the white appearance of the trees when stripped of the bark; the inner layers alone are used, and yield by distillation a warm aromatic oil. The bark of a Brazilian species is used as a tonic and antiscorbutic; it is prescribed in low fevers, and made into a gargle is useful in cases of relaxation of the tonsils. xxi. bixinea:, (Bixixe.e, Kunth. — Bixace.e et Cochlospermea:, Endlicher. — Flacourtiacea: et Pangiacea:, Litull. — Flacourtianea:, L. C. Richard, D. Clos.) Sepals distinct or connate , usually imbricate. Corolla polypetalous, hypogynous, or 0. Stamens usually oo, hypogynous or sub-perigynous. Ovary free, usually 1- celled, placentation parietal. Style simple, or divided to its base. Berry' or capsule with half seminiferous valves. Seeds albuminous. Embryo usually straight, axile. 1 This order is omitted in the original. — Ed. it 2 211 XXL BIXINEiE Jii.rn. Dehiscent fruit. lii.ra. Transverse section of ovary. Xylosma. g flower. Xylosma. Pistil cut transversely and separated from the disk. Xylosma. Transverse section of ovary. XXI. BIXINEiE. 245 Trees or shrubs. Leaves alternate, simple, toothed, rarely entire, sometimes palmilobed or compound ( Cochlospermum , Amoreuxia), sometimes pellucid-dotted ; stipules minute, caducous or 0. Flowers $ or unisexual, regular, axillary or terminal, solitary or more often fascicled, or corymbose, racemose or panicled. Sepals 4-5, or 2-6, free or connate, aestivation imbricate, rarely sub-valvate (Azam, Arc.), or united into 2 more or less regular valves (Pang mm, &c.). Petals hypogy- nous, as many as sepals, or oo, aestivation imbricate and twisted, deciduous, or 0. Stamens hypogynous, or obscurely perigynous, indefinite, or rarely definite (Azara, Erythrospermum, Sec.) ; anthers opening by slits, or rarely by an apical pore (. Bixa , Cochlospermum, See.). Torus often glandular, thick, or dilated ( Xylosma ), sometimes adnate to the calyx base, rarely annular and adnate to the ovary ( Peridiscus ). Ovary free, usually 1 -celled, with 2- oo parietal placentas, sometimes several-celled (Fla- con rtia, Amoreuxia, See.) ; styles as many as placentas, united, or more or less free; ovules 2- oo on each placenta, anatropous or half-anatropous. Fruit fleshy or dry, indehisccnt, or opening by seed-bearing valves. Seeds usually ovoid or pisiform, rarely renifonn, or cochlear and velvety (Cochlospermum) , smooth, or pulpy on the outside (Hi ra, Dendrostylis) ; albumen fleshy, more or less copious. Embryo axile, straight or curved ; radicle near the liilum ; cotyledons large, usually cordate. Tribe I. BIXEjE. Flowers 5 , or rarely polygamous. Petals large, without a scale, twisted in bud. Anthers linear or oblong, opening by 2 terminal pores, or short valves. Capsule dehiscent ; endocarp membranous, separating from the valves. PRINCIPAL GENERA. Cochlospermum. • * Bixa. Tribe II. ON CO BILE. Flowers dioecious or polygamous. Sepals and petals imbricate, the latter most numerous and without a scale. Anthers linear, opening by slits. PRINCIPAL GENERA. Oncoba. Dendrostylis. Tribe III. FLA CO UR T1E2E. Flowers 5 or dioecious. Petals 0, or equal to the sepals, imbricate, without n •scale. Disk surrounding the stamens or the ovary. Anthers short, linear, opening by slits. PRINCIPAL GENERA. La?tia. ‘Azara. Erythrospermum, Xylosma, Ludia. i^colopia. Flacourtia. Aberia, 246 XXI. BIXINEiE. Tribe IV. P ANGIE JE. Flowers dia'eioits. Petals with a scale at the base. * Iviggelaria. PRINCIPAL GENERA I’angium. Hydnocarpus. Gynocardia. Pangium editle. c? flower- bud. Pangium. flower. pangium. 9 flower. Pangium. Pistil cut transversely. The normal Bixinea are allied to Cistinea by aestiva- tion, insertion of the petals, polyandry, one-celled ovary, and parietal placentation ; but Cistinea; differ in their shorter and ortho tropous or sub- orthotropous embryo, and their usually floury albumen. Bixinea bear some relation Pangium edule. Seed, entire and cat vertically (mag.). to Cajiparidca, but fire Sepa- rated by their albuminous seeds. They differ from Tiliacece in the one-celled ovary and placentation. The oligandrous Bixinea approach Violariea, which are separated by their irregular corolla and connivent anthers. They also approach Papayaceee, through the tribe of Pangiea. Bixineee inhabit the tropical regions of both worlds. The most important of the tribe Biviea is the Arnotto ( Bi.va Orellanct), a tropical American tree, cultivated throughout the tropics ; the reddish pulp of its seeds smells of violets, and is bitter and astrin- gent. A refreshing decoction is prepared from it, which is considered antifebrile, and is also used in cases of hfemorrhage, diarrhoea and gravel. The aromatic bitter seeds and root are reputed stomachic. The seeds' steeped in hot water and allowed to ferment, furnish a red dye, which by evaporation becomes a solid paste, the arnotto of commerce, used largely by painters, and especially dyers, as also to colour butter and wax ; the Caribbeans formerly tattooed themselves with it to prevent mosquito bites. The soft wood of Bixa serves as tinder to Indians, who obtain fire by rubbing together two pieces of wood of different species. Cochlvspermum insigne, which grows in Brazil, is supposed to cure abscesses in the viscera. The root of C. tinctorium, which contains a yellow dye, is useful in amenorrhoea. The gum of the East Indian C. Gossypinm , called Cuteera, is used as a substitute for tragacanth. The fruit of Oncoba, which inhabits tropical Africa from Nubia to the Cape de Verd, yields a sweet and eatable pulp. Latin apetala , from tropical America, secretes a balsamic resin similar to sandarac. The more or less acid juicy berries of Flncourtia cataphracta, sepiaria, sapida and inermis, Asiatic species, and of F. BnmontcJd, are eatable. The bitter shoots of F. cataphracta taste like rhubarb, and are used as a tonic. The Cingalese use the fruits of Hydnocarpus inebrians to intoxicate fish. XXI r. PITTOSPOREyE. 247 Case aria pule hell a. Samydkj, form a small group of trees audslirubs inhabiting the tropics, especially in America; they are connected with Bixineee by most characters, and are only separated by their apetalous flower, strongly peri gy nous sub-monadelphous stamens, and apical embryo. They also approach Homalinete and Passi/torcrc in apetalism, perigyny, onc-celled ovary, parietal placcntation, albuminous seed, alternate stipulate leaves, &c. XXII. PI TTOSPOREsE. (PlTTOSPORE.E, Br.) Corolla polypetalons, hypogynous, isostemonous, aestivation imbricate. Stamens 5, alternate with the petals. Ovary of 5 more or less perfect many- ovuled cells. OvtfLES anatropous. Fruit dry or Jleshy. Embryo alluminons. Stem tvoody. Leaves alternate. Trees or erect shrubs, sometimes climbing ( Solly a ). Leaves alternate, petioled, simple, sub-coriaceons, exstipulate. Flowers 5 , regular, axillary or terminal, racemose, corymbose, or cymose. Calyx 5-partite or -phyllous, aestivation 248 XXII, PITTOSPOBEiE. Pittosporum. Diagram. Piltosporu m pli i llyrccoides. Flower. Pi U ospo ru m pi i i III/)' (jeo i des. Transverse section of fruit (mag.). Pittosporum undulalum. Seed cut vertically (mag.). imbricate, deciduous. Petals 5, inserted on the receptacle, usually erect, claws comment or sometimes coherent, aestivation imbricate, deciduous. Stamens 5, alternating with the petals ; filaments filiform or subulate ; anthers introrse, cells opening by short or long longitudinal slits. Ovary free, sessile or stipitate, of 2 perfect cells, or incompletely 2-5-celled ; style terminal, simple ; stiyma obtuse or capitate ; ovules 2-seriate, horizontal or sub-ascending, anatropous. Fruit a capsule with 2-5 half-septiferous valves, or a more or less fleshy indehiscent berry. Seeds often few from arrest, often immersed in a pulp or viscous juice ; testa loose, raphe short, thick. Embryo minute, at the base of a fleshy dense copious albumen ; cotyledons indistinct. PRINCIPAL GENERA. * Pittosporum. * Bursaria. * Sollya. * Billardiera. Pittosporece are connected with Celastrine a by the polypetalous isostemonous corolla, imbricate aestivation, ascending anatropous ovules, dry or fleshy fruit, albuminous embryo, woody stem, and alternate leaves. But in Celastrinece the stamens and petals are inserted outside a fleshy disk lining the bottom of the calyx ; the cells of the ovary are perfect ; the seeds are enveloped in a pulpy aril, and the embryo is axile in the albumen. There is also a real affinity between Pittosporece and the polypetalous pentandrous Pricinea ( Ledum ), founded on the insertion, the aestivation and isostemony of the corolla, the many- celled ovary, the simple style, the anatropous ovules, the structure of the fruit, the albuminous embryo, XXIII. POLYGALEiE. 249 the texture of the stem, ami the alternate leaves; besides which, in many Pittosporea ( Sollt/a , Clieiran- thera) the anther-cells open near the top by little slits. 1‘ittosporea principally inhabit extra-tropical Australia, but many are Indian and Malayan, and some African and Oceanic. Some are cultivated in Europe for ornament. All contain resinous aromatic and bitter principles, which give their berries a tart, disagreeable taste ; but the natives of Australia, who to appease their hunger are reduced to filling their stomachs with clay mixed with organic detritus, eagerly devour the fleshy fruits of this family. XXIII. POL YGALEEE and TREMANDREsE. (Polygalea;, Jussieu. — Polygalacea; et Krameriacea:, Lindl.) Pblygnla rulyarit. Vertical section of flower. f'Jytjala. IHngrani. I'oJyjahi. Fruit (mag.). Poly gal a. •S-cd, entire ami cut (mag.). Krameria. Androecium (mag.). Krameria. Pistil (mag.). 250 XXIII. POLYGALEiE. Flowers irregular. Petals hypogynous, unequal. Stamens usually double the number of the petals. Anthers 1- ( rarely 2-) celled, opening at the top by 1-2 pores. Ovary 2 -celled. Ovules pendulous , anatropous. Fruit a fleshy capsule , rarely indehiscent. Embryo albuminous or exalbuminous. Herbs or undershrubs, sometimes twining, or erect, sometimes climbing shrubs, rarely arborescent, glabrous, cottony or velvety, hairs not stellate. Leaves alternate, rarely opposite, simple, entire. Flowers $ , irregular, solitary, spiked or racemed, or rarely panicled, axillary or terminal ; pedicels usually jointed at the base, bracteate and 2-bracteolate. Sepals 5, free, imbricate, 2 inner largest, often winged and petaloid. Petals 3 or 5, hypogynous, the 2 lateral free, or united at their base with the lower, concave or galeate (keel), in the gamopetalous corolla split behind, rarely 0 ; upper 2 sometimes equal to the lateral, enveloping the keel in aestivation, sometimes small, scale-like, or 0 ( Securidaca ). Stamens 8, rarely 5-4 ( Salomonia ), inserted on the receptacle ; filaments rarely free (Xanthophyllum) , usually monadel- plious, forming a sheath split on its upper edge, and more or less united out- side with the petals; anthers erect, basifixed, 1- (rarely 2-) celled (Xanthophyllum, Securidaca), opening at the top by a pore (rarely 2), more or less oblique; pollen of Polygala ovoid, external membrane splitting in longitudinal bands, allowing the inner membrane to protrude, and resembling the staves of a barrel. Disk small, often 0, or rarely expanded into an imperfect unilateral ring. Ovary free, with 2 antero-posterior cells, rarely 1 -celled by arrest ( Securidaca )., very rarely 3-5-celled ( Trig oniastr urn , Moutabea) ; style terminal, curved, dilated at the top, undivided or 2-4-lobed ; stigma terminal, or situated between the lobes of the style ; ovules pendulous, usually solitary in each cell, or rarely twin, collateral (Krameria), or very rarely 2-G, scattered (Xanthophyllum) , anatropous, raphe ventral. Fruit usually a loculicidal or indehiscent capsule, a drupe (Carpolobia, Mundtia), or samara (Securi- daca, Trig oniastr um) . Seeds pendulous ; testa crustaceous, often velvety ( Come - spermum) ; hilum often strophiolate (Polygala) ; albumen sometimes copious, fleshy or mucilaginous, sometimes scanty or 0. Embryo axile, straight ; cotyledons plano- convex, fleshy and thick in the exalbuminous seeds ; radicle short, superior. PRINCIPAL GENERA. * Polygala. Comespenna. Bredemeyera. Securidaca. Carpolobia. Moutabea. Xanthophyllum. Krameria. Salomonia. Muraltia. The affinities of Polygalece are obscure. They were formerly placed near Rhinanthece on account of the irregular hypogynous apparently monopetalous corolla, the two-celled ovary, and compressed capsule ; but their other characters are all opposed to this affinity. They have since been compared with Papilio- nacea ; but in these, besides the perigynous insertion and a host of other differences, the odd petal is next the axis, whilst it is opposite it in Polygalea. The affinity with Sapindaceee is also very distant, and almost confined to the hypogynous imbricate and often irregular corolla, the 1-2-ovuled ovarian cells, simple style, capsular or samaroid fruit, and often arillate or strophiolate seeds. There is a much closer affinity with Tremandrea : similar habit, ovary with two one-cvuled cells, pendulous ovules, compressed capsule, strophiolate seeds, one-celled anthers opening by pores, pollen-granules opening by longitudinal slits; but in Tremandrea the flower is regular, the aestivation of the calyx is valvate, the stamens are in XXIV. VOCIIYSIACEiE. 25 1 pairs opposite to the petals, tlio filaments are free, the anthers extrorse, the hairs stellate and glandular; but, nevertheless, TrcmnmJrccc may be considered as regular-flowered Poly galea, &c. Tetratheca procumbent . Flower. Tetratheca. Pollen grains (mag.). Tetratheca, Vertical section of pistil (mag.). Tetratheca. Stamen (mag.). Tetratheca. Seed cut vertically (mag.). Poli/gala, the type of the family, is dispersed over all the globe, though least frequent in extra-tropical South America. The other genera are distributed over the tropical and warm southern temperate zones. Polygalea contain a bitter principle which gives them Tttraihtea rtrticiiiaia tonic and astringent properties ; this is often accompanied by an acrid principle, named sencginc, which renders some species emetic, i he root of P. Senega is used in Europe on account of its stimulating action on the pulmonary mucous membrane ; the natives of Virginia use it as an antidote to snake-bites, as do the Smith Africans the P. Serpentaria. The European Polygalas are still prescribed for lung diseases. Jlnrhera (hi'ersifolia, a shrub of the Antilles, is a sudorific analogous to guaiacum. The bark of the root of Mon n in a polgttaehya is employed in Peru as an astringent and antidysenteric ; the ladies of that country also use it in smoothing their hair. The drupe of the South African Mundtia spinosa is eatable. The root of hranwrut tnandra possesses astringent and tonic properties, due to its containing much tannin. XXIV. VOC II YS TA CEJL. 1 Trees, often gigantic, with copious resinous juice, rarely erect or sarmentose (Trigonia), or climbing shrubs. Branches usually opposite or wliorled. Leaves opposite or whorled (alternate in Lightia), shortly petioled, coriaceous, quite entire; stipule# small or 0, or reduced to glands. Inflorescence various, often racemed or panicled. Flowers irregular, ? , often large, pedicels jointed and bracteate. Sepals .5, free or connate at the base, or rarely adnate to the ovary, 2 outer often 1 This order is omitted in the original. — Ei>. 252 XXV. FKANKENIACEiE. smaller, 2 anterior larger, posterior often largest, spurred or gibbous at the base., Petals liypogynous, or inserted on the top of the calyx-tube, 1, 3, or rarely 5, when one is protruded between the anterior sepals, clawed, blade obcordate, aestivation convolute. Stamens inserted with the petals, usually 1 fertile, the rest imperfect (except Licjhtia and Trigonia ) ; filaments usually thick, excrescent, subulate ; anthers oblong-linear or linear-cordate, connective thickened, cells sub-distant, including the style. Ovary free, rarely adnate to the sepals, often oblique and inserted by a broad base ; style simple, subulate, filiform, or gradually dilated upwards ; stigma capitate, truncate or oblique, entire or obscurely lobed ; ovules twin, collateral, or go 2-seriate, usually inserted in the axis, ascending or pendulous, micropyle superior, raphe ventral. Fruit usually capsular (a winged samara in Erisma), oblong, terete or trigonous, coriaceous, loculicidally or septicidally 3-valved ; valves coriaceous after parting from the seed-bearing axis, endocarp often parting from the epicarp. Seeds 1, few or many, sometimes imbricate in 2 series, often winged; testa membranous or coriaceous, often hairy or cottony ; albumen 0, fleshy in Trigonia. . Embryo straight ; cotyledons flat, wrinkled, or membranous and convolute ; radicle short or long, superior. PRINCIPAL GENERA. Callisthene. Qualia. Erisma. Vochysia. Trigonia. Lightia. Vochysiacece were placed by De Candolle amongst Calycifioree next Onagrariece, but by Lindley near Tohjgalece with more reason. Lightia presents various points of analogy with Chrysobalanece ; and Erisma with Dipterocarpece, in its fruit, convolute petals, often contorted or folded cotyledons, and resinous juice. The order is wholly tropical American ; of its properties nothing is known. XXV. FRANKENIACEyE , Saint-Hilaire. Calyx tubular, 4-5 -fid. Petals 4-5, hyjpogynous, equal, long-clawed. Stamens usually 6, liypogynous. Ovary free, with 3-4-2 parietal placentas. Style 3-4-2- partite at the top. Capsule of 3-4 valves, bearing at the base seeds with floury albumen. Embryo straight, axile. Stem herbaceous or suffruticose. Branches many, terete, jointed at the nodes. Leaves opposite, small, entire, subsessile or petioled, often fascicled when young, exstipulate. Flowers 5 , regular, pink or violet, solitary in the forks of the branches, sessile, or in a terminal dense leafy cyme. Calyx monosepalous, tubular, persistent, 4-6-lobed, aestivation induplicate-valvate. Petals 4-6, inserted on the receptacle, long-clawed, free, imbricate in aestivation, claw with an adnate scale in front, limb spreading. Stamens usually 6, sometimes 4-5-co , liypogynous, free, or connate at the base into a very short ring ; filaments filiform or flattened ; anthers extrorse, versatile, didymous or ovoid, cells parallel, opening longitudinally. Ovary free, sessile, 3-4-gonous, 1-celled, with 3 or sometimes 4 parietal slender placentas ; style filiform, with as many branches as placentas, branches stigmatiferous inside at the top ; ovides 00, 2-seriate, semi-anatropous, micropyle inferior, funicle long, XXV. FRANKENIACE2E. 253 Fran ken i rse anthers, parietal placentation, seed with sub-terminal liilum, and straight embryo. It also approaches Tninarim incte in hypopetalism, one-celled ovary, parietal placentation, ascending anatropous ovules, capsule- ' alves seminiferous towards the base, and straight embryo; but Tamariscmece differ in their nearly free imbricate sepals, introrse anthers, exalbuminous seed, alternate leaves, and spiked inflorescence. Frankemacm inhabit extra-tropical maritime shores, and principally the Mediterranean and Atlantic, 254 XXYI. CARY0PHYLLE2E. extending into central Asia and north-western India; they are very rare in the tropics and southern latitudes. Frcvnkmice are mucilaginous and slightly aromatic. F. portulacfolia , which grows on maritime roclcs in St. Helena, was formerly used fey the colonists as tea. XXVI. CA R YOPII YLLEfE, Jussieu . Sepals free or united . Petals 4-5, hypogynous or sub-perigynous , sometimes 0. Stamens usually twice as many as the petals, and inserted with them. Ovary 1 -celled, or with 2-5 imperfect cells. Ovules neutrally attached, placentation central or basilar. Seeds smooth or granular, albumen usually floury. Embryo more or less curved. — Leaves opposite. Annual or perennial herbs, rarely shrubby. Stem and branches often thickened at the nodes, and sometimes jointed. Leaves opposite, entire, usually 1^-3- nerved, sometimes without nerves, often united at the base, exstipulate, or furnished with small scarious stipules. Flowers regular, § , or rarely unisexual. Inflorescence centrifugal, sometimes many-flowered, in a simple or dichotomous loose or dense cyme, rarely in a thyrsoid or panicled raceme ; sometimes few-flowered, simply forked, or reduced to a single flower ; brads opposite, at the forks, upper often scarious. Sepals 4 5, persistent, free or united into a 4-5-toothed calyx, aestivation imbricate. Petals inserted on a hypogynous or sub-perigynous disk, entire, 2-fid or laciniate, claw naked or appendiculate within, aestivation imbricate or twisted ; sometimes minute, scale-like, or 0. Stamens 3-10, inserted with the petals, sometimes equalling and alternate with them, very rarely alternate with the sepals (' Colob anthus ), sometimes fewer than the petals.; filaments filiform; anthers introrse, dorsally fixed, cells opening longitudinally. Torus usually small, sometimes (in some Silenece ) elongated into a gynophore, and bearing the stamens on its summit beneath the ovary; sometimes (in many Alsineae) forming a staminiferous annular disk, slightly adnate to the base of the calyx, or swelling into short glands between the stamens, or bearing, outside the stamens, staminodes opposite to the sepals. Ovary of 5 or 4 united carpels, or of 3 of which 2 are anterior, or of 2 which are antero-posterior, free, 1 -celled, or rarely 2-5-celled owing to more or less perfect membranous septa which disappear early; styles 2-5, stigmatiferous along their inner edge or at their top, free or united into a single lobed or toothed style ( Folycarpece ) ; ovules 2-oo , very rarely solitary ( Queria ), fixed by the middle of the inner edge and face to funicles springing from the bottom of the ovary, distinct or cohering into a central column, ascending, micropyle inferior or transverse. Capsule membranous or crustaceous, rarely berried ( Gucubalus ), bursting loculicidally or septicidally by valves or apical teeth ; valves sometimes as many as the sepals, and when 5 opposite either to the sepals ( Lychnis , Viscaria, Petrocoptis ) or to the petals (. Agrostemma ), sometimes double in number, rarely sub-indehiscent ( Drypis , Cucubahis, &c.). Seeds oo , or solitary by arrest, smooth and shining, tubercular or muricate, rarely winged on their circumference; sometimes reniform, globose, obovoid or com- pressed, liilum marginal ; sometimes depressed, scutiform, liilum facial ; albumen floury or rarely sub-flesliy, placed in the bend o’f the embryo or on its sides, some- XXV I. OARYOPlIYLLEyE. or,.1 times forming1 n thin layer on its dorsal surface, rarely 0 (Velez ia, sp., Dianthus). Embeyo more or less curved, peripheric or annular (Drypis), or nearly straight in the scutiform seeds ; cotyledons narrow, plano-convex or half-cylindric, incumbent i«r very rarely accumbent ; radicle cylindric, inferior or superior. Tribe I. SILENE2E, D.C. Sepals united into a 5-toothed or -lobed calyx. Petals and stamens liypogynous, inserted on an erect gynopliore, rarely sessile. Petals with scales at the top of the claw, or naked. Styles completely distinct. — Leaves exstipulate. 1. Lychnidese. — Corolla twisted or imbricate in aestivation. Calyx with commissural nerves. Petals usually furnished at the base of the limb with scales forming a coronet, very rarely with small winged hands at the claw ( Agrostemma ). Fruit 3— 5-merous. Embryo arched, circular or coiled (Dryja’s). PRINCIPAL GENERA. Petroeoptis. Melundriuni. * Agrostemma. * Lychnis. * Yiscaria. * Silene. Cueubalus. * Dry pis. Mrlmulrium dioicum. 9 flower. Mrhtndrium dioicum . Calyx. Mtl.tndt ium dioicum. Petal. Mi landrium dioicum. £ flower. Melundriuni dioicum J . Flower cut vertically (mag.). Mchtndrium dioicum £ . Diagram. Melundriuni dioicum £ . Antlrcecium surrounding an abortive pistil. Melundriuni dioicum Q Transverse section of ovary (mag.). Drypit spinosa. Seed, entire and cut vertically, with coik^d aud incumbent cotyledons (mag.). Cueubalus pace if er. Seed, entire, and with vertical and transverse sections showing the incumbent cotyledons (mag.). XXYI. CAKYOPHYLLEiE. 25 G Melandrium dioieum Q Vertical section of pistil (mag.). Melandrium dioicum. Seed (sn’ag.). Agrostemma. Diagram. Agrostemma Githago. Seed, entire, and with vertical and transverse sections, showing the incumbent cotyledons (mag.). 2. Diantheae. — Corolla always twisted to tlie right in bud. Calyx with no commissural nerves. Petals usually furnished with small winged bands at the claw, or with a coronet of scales at the base of the limb ( Saponaria , Velezia). Fruit 2-merous. Embryo peripheric, or rarely straight, and then albumen scanty or 0. * Saponaria. * Gypsopliila. ‘Dianthus. Velezia. Dianthus. Dehiscent capsule. Dianthus. Seed cut vertically (mag. XXVI. CARYOPHYLLEiE. :o7 Dianlhux. Petal (mag.). Velezia. Seed, ventral face (mag.). Di an thus. Transverse section of the ovary, at the top, middle, and base (mag.). Velezia. Transverse section of seed (mag.). St el’ aria Uolostea. Tribe II. ALSINE2E, D.G. Sepals free, or united at tlieir base by tlie disk. Petals and stamens hypogynous on a slightly developed disk, or shortly perigynous. Petals with a short or obtuse base, without claw or scales. Styles quite distinct. Leaves exstipulate, or sometimes with small scarious stipules. sttllana. Flower cut vertically (mag.). S 258 XXVI. CARYOPHYLLECE. Slellaria. Pistil and androecium (mag.). Slellaria. Compressed seed, entire, and with vertical and transverse sections, with incumbent cotyledons (mag.) . Slellaria. Dehiscent fruit. Colobanthus. Apetalous flower, stamens alternate with the sepals (mag.). Buffonia macrosperma. Seed, entire, and with vertical and transverse sections showing the accumbent cotyledons (mag.). Spergularia marginala. Winged seed, entire, and with vertical and transverse sections, with incumbent cotyledons (mag.). Holosteum. Depressed seed, ventral keeled face (mag.). Holosteum umbellatum. Seed, cut vertically and transversely, with incumbent cotyledons (mag,). Cerastium arvense. Seed, entire, and with vertical and transverse sections, with incumbent cotyledons (mag.). Holosteum. Sagina. PRINCIPAL GENERA. *Cerastium. Stellaria. *Arenaria. Colohmthus-. Quevia. *Spergula. Buffonia. Spergularia. Tribe III. POL YCARPEyL, D.C. Sepals free, or united at tlie base by the disk. Petals as in Alsinece, usually small, bypog-ynous, inserted with the stamens on a slightly developed torus, or shortly perig-ynous. Style simple at the base, 3— 2 -lid above. Stamens 5 or fewer. Leaves usually furnished with scarious stipules. PRINCIPAL GENERA. Drymaria. Polycarpon. Ortegia. Loeflingia. Polycarpsea. Stipulicida. Caryophyllece, with Varonychie.ce , Portulacece , Amarantacece, Basellece, Chenopodiece, Phytolacccce, Nyctciyinece, and even Polyyonece, form a group of plants of which the common character is a curved embryo surrounding a floury albumen (see these families). Those Caryophyllece which have petals, definite stamens, a one-celled and many-ovuled ovary, and opposite leaves, are easily distinguished from all these families ; but the apetalous and few-ovuled genera approach several of them. Notwithstanding their parietal placentation, we may unite to this group Mesembryanthemece, which have a curved embryo surrounding a floury albumen, and Caetece , which have a curved but usually exalbuminous embryo. XXVII. PORTULACEiE. 250 Caryophyllea mostly inhabit the extra-tropical regions of the northern hemisphere, extending to the Arctic regions and to the tops of the highest Alps. They are rarer in the southern hemisphere, and still more so in the tropics, where they are almost confined to the mountains. Some Caryophyllea possess refreshing and slightly demulcent properties, but they have fallen into disuse. Such are Holosteum umbeUatum , Cerastium arvense, Stellaria Ilolodea and media ; the latter, which grows everywhere, is the common Chiekweed whose seeds form the food for many cage-birds. The seeds of Spergula were formerly recommended for consumption. The root of Saponaria officinalis , an indigenous species, contains a gum, a resin, and a peculiar matter which froths in water like soap, whence it has been placed among demulcent and depurative medicines ; some doctors even substitute it for Sarsaparilla in cases of syphilis. The White Lychnis ( Melandrium dioicnm ) and Lychnis chalcedonica are also used as demulcents. Silenc Otifes, a bitter and astringent herb, is prescribed for hydrophobia. The root of Silene virgin tea is used as an anthelminthic in North America. Pinks, and especially Dian- thus Cnrgophgllus, have sweet-scented petals, with which chemists prepare a syrup and a distilled water. The Rose Campion ( Lychnis Githago ) is common amongst corn : its seeds are acrid, and render bread poisonous wheu mixed with the flour in too great quantities. XXVII. POKTULACEJE , Jussieu. I’ortulaca oleraaa. Portulaca. Diagram. /‘orhilaca. Fruit, entire and dehiscent. Portulaca. Flower cut vertically (mag.). Portulaca. Stamens (mag.). 260 XXVII. PORTULACEiE. Flowers § . Corolla 0, or 'petals sometimes coherent at the base, very fugacious. Stamens hypogynous or perigynous, equal and alternate with the calyx-lobes, or double, triple, or multiple in number. Ovary usually free, rarely inferior, 1-8 -celled. Fruit indehiscent, or a pyxidium, or a loculicidal capsule. Embryo peripheric, arched or annular, surrounding a floury albumen. Herbaceous annuals or perennials, often suffruticose or fruticose ; stem and brandies diffuse, glabrous or with simple rarely stellate or hooked hairs. Leaves alternate or opposite, very various in form, entire, sessile or sub-sessile, often fleshy, with a single nerve, or nerveless, sometimes stipulate. Flowers £ , usually regular and axillary, solitary or variously disposed, testivation imbricate. Calyx diphyllous, or monosepalous with 2, 3, 4, 5 divisions. Petals 5, 4, 3, hypogynous, or rarely sub-epigynous ( Portulaca ), distinct, or connate at the base, very tender and fugacious, often 0. Stamens l-oo , inserted on the receptacle or on the calyx, free or in bundles ; filaments filiform or subulate ; anthers introrse, dehiscence longitudinal. Disk hypogynous, girding the base of the ovary, very often inconspicuous. Ovary sessile, usually free, sometimes half-inferior ( Portulaca ), 1-5-celled, cells 1-few-many- ovuled ; style terminal, with 2-8 branches, stigmatiferous on their inner surface ; ovules semi-anatropous, rarely solitary in the 1-eelled ovaries (P or tula car ia), usually numerous, inserted by separate funicles on a central free placenta, or pendulous to funicles ascending from the bottom of the cell ; in the many-celled ovaries 1 or few or many in each cell, attached to the central angle throughout its length, or to its centre or top. Fruit a dehiscent capsule, or rarely indehiscent (P or tula car ia). Seeds reniform, ovoid, globose or lenticular ; cdbumen floivry. Embryo peripheric, curved or annular, surrounding the albumen; cotyledons incumbent; radicle facing the liiluin. Tribe I. CA LA NDRINIE2E. Calyx diphyllous, or 2 -partite or 2-3-fid. Petals 5, 4, 3, hypogynous, distinct, sometimes more or less connate into a tube ( Montia ). Stamens fewer or more than the sepals, or indefinite, hypogynous, inserted alone or in bundles at the base of the petals; filaments free, or united at the base. Ovary 1 -celled, few-several-man y- ovuled, placentation basilar or free, central; style filiform, 2-5-fid. Capsule 2-5- va.lved. — Herbaceous or frutescent plants. Leaves alternate or opposite, often fleshy, sometimes furnished with intrafoliar stipules cut into hairs or lacinise. Flowers solitary, or collected into racemes, or into axillary or terminal cymes. PRINCIPAL GENERA. Portulacaria. Anacampseros. Talinum. "Calandriuia. *01aytonia. Montia. Tribe II. SESUVIExE. Calyx 5-fid, rarely 2-fid or -partite. Petals 0, or rarely 4-6, and epigynous ( Portulaca ). Stamens 5-10- oo , inserted singly or in pairs, or in bundles, at the base or throat of the calyx, and between its segments. Ovary free, rarely inferior XXVII. PORTULACEiE. 261 ( Portulaca ), 1-5-cellecl, many-ovuled; ovules ascending, fixed to a basilar placenta, or pendulous to the central angle of the cells ; stigmas 2-5. Capsule opening trans- versely by circular dehiscence. — Fleshy glabrous herbs with opposite or alternate leaves, often stipulate, or bearing stipuliform hairs in the leaf-axils. Flowers axil- lary, sessile, solitary, or glomerate, in spiked or umbelled cymes. PRINCIPAL GENERA. ‘Portulaca. Sesuvium.1 Trianthema. Tribe III. AIZOIDEJE. Calyx l-5-fid or -partite. Corolla 0. Stamens 5-15, inserted singly or in pairs, or in bundles, on the calyx, between its segments. Ovary free, with 2-5 l-2-oo -ovuled colls ; ovules pendulous to the central angle of the cells ; stigmas 5-2. Capsule loculicidal. — Herbaceous or frutescent plants, covered with simple or bi-acuminate hairs. Leaves alternate or opposite. Flowers axillary, sessile. PRINCIPAL GENERA. Aizoon. Galeuia. Plinthus. Allied Tribe. MOLL UGINEAE. Calyx 5-4-partite, or 5-lid, persistent. Petals 0, or very numerous, ligulate, sub-perigyuous. Stamens hypogynous or perigynous, equal and alternate Avith the sepals, or fewer, or more, or indefinite, distinct, or aggregated in bundles, the outer alternate Avith the calyx-segments. OArary free, many-ovuled, 2-3-5-celled ; ovules fixed to the inner angle of the cells by separate funicles, or rarely solitary and basilar ( Acrosanthes ). Capsule usually angular or compressed, loculicidal. Seeds as in Portulacece. — Herbaceous or sub-Avoody plants, glabrous, or covered Avith stellate hairs. Leaves opposite or alternate, or fascicled and pseudo-Avliorled, often stipulate. Flowers crowded in racemes or cymes, or in axillary or leaf-opposed umbellules, rarely solitary ( Acrosanthes ). PRINCIPAL GENERA. Orygia. Gleinus. Molltigo. Pharnaceum. Acrosanthes. Psamnotrophe. Adeuograrume. Giesekia. Liineum. Portulcu trr approach Tetnujoniece, Mesemhnjanthemece, and Paronychiece (see these families). The tribe of Molluyineo is also connected with Portulacece by habit, the entire tieshy leaves, inflorescence, perigynous corolla, often 0, the isostemonous or indefinite stamens, distinct or aggregated into bundles alternate Avith the sepals, and especially by the structure of the ovule and the nature of the albumen. 1 In Bentham and Hooker’s ‘ Genera Plantarum,’ Portulaca, from its disepalous calyx and 1-celled ovary, is regarded as a very close ally of Montia and the other disepalous Partu/arccr, included in this work under the tribe Calandriniece ; whilst Stsuvium (and Trianthema) with its o-merous isomerous perianth and several - celled ovary, is placed with the other Ai.oidice under Fico Ulcer, and referred to the Calycifloral sub-order of Dicotyledons. No doubt the F icoidece and Portulacece are members of one great group (which should also includo Tetragoniece), but the exigencies of a linear clas- sification render it convenient to keep them apart. — Ed. 262 XXVIII. TAMARISCINEiE. Portidaceee are not absolutely absent from any climate, although more rare in the temperate regions of Europe and central Asia than in North America. Most inhabit the subtropical regions of the southern hemisphere. Akoidece abound in South Africa, and occur in Arabia l’etraea, and in very small numbers in the Mediterranean region. Sesuviece are much more widely dispersed ; none, however, have been met with in America north of the tropic, and very few are found in temperate Asia and Europe. Calandriniece are nearly cosmopolitan : they penetrate into the cold regions of the North, and abound beyond the tropics, and rather in the northern than in the southern hemisphere. Molluginecc are most frequent in tropical and subtropical regions. Most of the species are mucilaginous; some are slightly bitter, astringent, and have been classed amongst mild tonics and diuretics. The herbage of Portidaca oleracea has long enjoyed a reputation as refreshing, sedative and antiscorbutic. It is also eaten as a salad ; its seed, steeped in wine, acts as an emmenagogue. Several American and Asiatic Calandriniece are also used as potherbs, as are Sesuvium Portulacastrum and repens, which grow in tropical Asia. The root of Claytonia tuberosa , a native of eastern Siberia, is eatable. Talinum and Pharnaceum are bitter and astringent, and are popular remedies in Asia and America. Soda is obtained in abundance from Aizoon ecmariense and hispanicum, by calcining. XXVIII. T A MA 1USCINEAE. (Portulacearum genus, Jussieu.- — Tamariscine^e, Desvaux. — Tamaricace^e, Lindl .) Tamarix. Tamarix. Myrlcaria. 1'lower without its stamens (tnag.). Ripe flower (mag.). Seed (mag.). Tamarix indica. XXVIII. TAMARISCINEiE. 263 Sepals 5—1. Petals 5 , hypogynous, imbricate, marcescent. Stamens 5 or 10. Ovary 1 -celled, placentas parietal or basilar, usually 3, many-ovuled. Seeds ascending-, rhalaza apical, bearded. Embryo straight, exalbuminous. Leaves alternate, rather thick. Undersiirubs, shrubs, or small trees, with both, persistent and annual caducous branchlets. Leaves alternate, sessile, small, sub-imbricate, rather fleshy, sometimes amplexieaul, entire, often dotted, usually glaucous, exstipulate. Flowers perfect, regular, white or pink, bracteolate, in terminal racemed spikes. Calyx free, per- sistent, of 5 (rarely 4) sepals, imbricate, 2-seriate, sometimes connate at the base. Petals 5, inserted ou the receptacle, imbricate in bud, marcescent. Stamens equal to and alternate with the petals, or double in number, inserted on the edge of a hypo- gynous disk ; filaments tree, united at their base into a ring, cup, or tube ; anthers introrse, dorsifixed, dehiscence longitudinal. Ovary free, sessile, usually 3-gonous, 1 -celled, with 3-4 (rarely 2-5) parietal or basilar placentas; styles equal in number to the placentas; stigmas obtuse or truncate, dilated, sometimes sessile; ovules numerous, ascending, anatropous. Capsule 1-celled, or incompletely several-celled by the development of the placentas, 2-5-valved, valves plaeentiferous at the base. Seeds numerous, ascending, with membranous testa, furnished at their apical chalaza with a dense beard, or beaked and furnished with spreading plumose bairs. Embryo exalbuminous, straight ; cotyledons oblong, obtuse, plano-convex; radicle short, conical, inferior. PRINCIPAL GENERA. * Myricaria. * Tamarix, Real ham and Hooker til. have combined with the small family of Tamariscinece, lleaumuriacecc and the genua Fouquiera ; which approach it, in fact, in their somewhat fleshy leaves, aestivation, hypogyny, "ften i.-o.-tenmnous or diplostemouous corolla, one-celled ovary with parietal placeutation, capsular fruit erect and bain seeds; but differ in the seeds being albuminous, and hairy over their entire surface. Iteau- tmiriii is distinguished by the solitary dowers and floury albumen ; Fouquiera has a monopetalous five-fid corolla with a long tube, 10-8 hypogynous stamens of unequal length; the seeds are surrounded a membranous wing, or by transparent hairs which simulate a wing; the albumen is fleshy, and the flowers are spicate or in thyrsoid panicles. [The including of these genera in Tamariscinece requires that the ordinal characters should be modified, and the order itself be broken up into the following tribes, as proposed in the ‘ Genera Plantarum.’ Tribe I. TAMARISCE2E. Petals five or nearly so. Seeds exalbuminous, hairy. Flowers racemed or spiked. Tama ri.r. My rica ria . Tribe II. REAUMUR IE/E. Petals free. Seeds hairy all over; albumen between fleshy and floury. Flowers solitary, axillary, and terminal. Hololuchne, lleaiunuria. Tribe III. FOUQUIERIEJE. Petals connate into a long tube. Seeds winged or furnished with long liairs. Flowers large, paniclcd. Fouguieria. Em] 264 XXIX. ELATINEiE. Tamariscinece are near Caryophylleee, Portulacece, and Frankeniacece, which are separated principally by the structure of their ovules and their floury albumen ; they further differ from Caryophyllece and Frankeniacece in their alternate and fleshy leaves, from Portulacece in habit, insertion, &c. They have also some affinity with Crassulacece. Tamariscinece (proper) are confined to the Old World, where they extend from 9° to 55° of north latitude. They prefer sea-shores, the margins^ of brackish lakes, the banks of rivers and torrents, in sandy or clayey soils. \_Bcaumuriece extend from the Levant to Central Asia ; Fouquiera is a Mexican shrub. — Ed.] Tamariscinece contain tannin, resiu and a volatile oil, which render them bitter and astringent. The bark of Myricaria yennanica is employed in Germany for jaundice ; that of Tamarix yallica is aperient. T. mannifera, which grows on Mount Sinai and elsewhere iu Arabia, secretes, as the result of the puncture of a Cynips, a saccharine matter, supposed by some to be the manna which fed the Hebrews in the desert. The galls of other species (also produced by the puncture of an inseot) are valued for their strongly astringent properties. XXIX. ELATINEfE. (Elatinea:, Cambessedes. — -Elatinace.®, Lindl.) Sepals 2-5. Petals 2-5, liypogynous, imbricate. Stamens equal or double the number of the petals, liypogynous. Ovary 3-5 -celled. Ovules anatropous. Fruit a capsule. Seeds exalbuminous. — Leaves opposite or fascicled, stipulate. Elatine hexanclra. Elatine octandra. Diagram. Elatine octandra. Flower (mag.). Elatine hexandra. Flower, leaves, and stipules (mag.). XXIX. ELATINEiE. 265 Elaline Hydropiper. Flower cat vertically (mag.). Elaline. Ovule (mag.). Merimea. Flowers, leaves, and stipules (mag.). Merimea. Diagram. Dwarf herbs, or marsh undershrubs ; stems creeping or spreading. Leaves opposite, rarely whorled, sessile or sub-sessile, entire or toothed, stipulate. Flowers 5 , small, regular, axillary, solitary or cymose. Sepals 2-5, distinct, aestivation imbricate. Petals 2 5, hypogynous, aestivation imbricate. Stamens equal or double the number of the petals, hypogynous ; filaments filiform-subulate, free ; anthers introrse, dorsifixed, versatile, dehiscence longitudinal. Ovary free, cells as many as sepals ; styles as many as cells, distinct ; stigmas capitate ; ovules oo, fixed to the central angle of the cells, horizontal or sub-ascending, anatropous, raphe lateral or superior. Capsule septicidal, valves flat or inflexed, leaving the placentiferous central column free. Seeds numerous, cylindric, straight or curved, strongly striate transversely, rarely smooth (Merimea), hiluin basilar, exalbuminous. Embryo straight or curved ; cotyledons short, obtuse ; radicle cylindric, long, near the hilum. GENERA. Elatine. Bergia. Merimea. E/attma, formerly placed in Caryophyllcce, tribe A/sinece, are distinguished by the capitate stigmas, dehiscent capsule, exalbuminous seed, and straighter embryo. They approach Hypericinece in hypopetal- ism, the 3-6-celled ovary with many ovules in each cell, the free styles, terminal stigmas, capsular fruit, straight or curved exalbuminous seeds, and opposite or whorled leaves ; but in 1 hypericinece the petals are twisted, the stamens usually numerous and polyadelphous, and the leaves exstipulate. Elatinece approach some Lythrariece, which have also isostemonous or diplostemonous dowers, an ovary with two or several many-ovuled cells, anatropous ovules, a septicidal capsule, exalbuminous seeds, and opposite leaves ; but they differ in the tubular calyx, perigynism, simple style and exstipulate leaves. The genus Tetradiclis (or Anatropa) appears much nearer Elatinece than ZyyophyUe.ce , in which Bentham and Hooker til.1 place it; it differs from Zyyophyllece in the number of the parts of the dower, the dehiscence of the capsule, the nature of the seeds, &c., and is only separated from Elatinece by its exstipulate and laciniate leaves. Elatinece are widely dispersed, especially in the Old World, inhabiting ditches and the submerged shores of ponds and rivers. They are of no use to man. Bentham and Hooker place it in liutacece, tribe Rutcce, and not in Zygophyllece. — Ed. 26(5 XXX. IIYPERICINEiE. XXX. HYPERICJNEJE. (Hyperica, Jussieu. — Hypericine^e, D.C. — Hypericace^e, Lindl.) St. John’s Wort. ( Hypericum perforatum.) St. John’s Wort. Pistil and bundle of stamens (mag.). St. John’s Wort. Diagram. St. John’s Wort. Fruit (mag.). St. John’s Wort. Seed, entire and cut vertically (mag.). St. John’s Wort. Bundle of stamens. Petals hypogynous, cluw naked, or furnished with a scale-like pit. Stamens numerous, hypogynous, monadelphous or polyadelphous. Ovary 5-3 -celled, or 1- celled by imperfection of the septa. Ovules numerous, anatropous. Fruit a capside, rarely fleshy. Embryo exalbuminous. — Leaves opposite, entire, usually dotted with pellucid glands. Stem woocly or herbaceous, perennial, rarely annual, juice resinous or limpid, XXX. HYPERICINEiE. 267 branches opposite or rarely wliorled, generally 4-gonous, sometimes compressed or cylindric, sometimes heath-like. Leaves opposite or rarely whorled, simple, penni- nerved, entire or with glandular teeth, usually sprinkled with pellucid glands sunk in the parenchyma, and edged with vesicular black glands ; stipules 0. Flowers 5 , regular, usually terminal, panieled, or in dichotomous cymes. Calyx persistent, of 4-5 more or less connate sepals, 2-seriate, the two outer often the smallest, rarely 4 decussate, the 2 outer largest, and covering the inner. Petals inserted on the receptacle, as many as the sepals, sessile or clawed, equal, more or less inequilateral, veins radiating, aestivation contorted or imbricate; daw naked ( Hypericum ), or fur- nished within, above the base, with a fleshy scale, or furrowed. Stamens inserted on the receptacle, usually indefinite, rarely definite, always more numerous than the petals ; filaments in 3 or 5 bundles, sometimes alternating with glands or hypo- gynous scales, or irregularly polyadelphous, or united into a tube, or quite free ; anthers small, subglobose, introrse, sub-didymous, often tipped by a gland, cells parallel, opening longitudinally. Ovary of 3-5 carpels, or of 1 (Endodesmia), 3-5- cel led, or with as many imperfect cells; styles as many as carpels, filiform; stigmas terminal, capitate, peltate or clavate ; ovules numerous in each cell, 2-seriate, rarely few or solitary ( Endodesmia ), usually horizontal, rarely ascending ( Haronga , Psoro- sp> rmum), anatropous, very rarely pendulous (Endodesmia). Fruit a capsule, usually septicidal, rarely loculicidal ( Gratoxylon , Elitea ), or an indehiscent berry. Seeds straight, rarely curved, hilum basilar, funicle sub-lateral ; testa crustaceous or mem- branous, dotted or smooth, sometimes loosely cellular, arilliform; chalaza diametrically opposite to the liilum, often dilated into a membranous wing (Elicea, Cratoxylon) . Embryo straight or curved, exalbuminous ; cotyledons flat, half-cylindric or rarely coiled ; radicle cylindric, obtuse, usually longer than the cotyledons, and near the hilum. PRINCIPAL GENERA. Hypericum. Vismia. Cratoxylon. Aseyrium. Psorospermum. Jli/jit rictnea are closely connected with (Juttifera and Cuinelliacea ; they are allied to Guttifvrce in their resinous juice, their tetragonous branches, opposite entire leaves, free or nearly free decussate unequal sepals, contorted or imbricate petals, indefinite stamens, filaments usually in several bundles, or monadelphous, one-pluri-celled ovary, horizontal or ascending anatropous ovules, capsular or fleshy fruit, and exalbuminous embryo; the diagnosis almost wholly rests on the usually herbaceous stem of Hyperi- < ineu, their not jointed branches, less coriaceous leaves, always perfect flowers, and filiform styles. They appl e e.n h Cami'lliacne in their free sepals, imbricate or contorted petals, indefinite monadelphous or polyadel- p 1 n *us stamens, and connective often glandular at the top, their capsular or fleshy fruit, and exalbuminous srrd : they are principally separated by their resinous juice, opposite leaves and inflorescence. They have also a close affinity with CUfineee in their two-seriate sepals, hypogynous contorted petals, numerous stamens, one-celled or sub-pluri celled ovary, capsule with septicidal valves with placentiferous margins; but in CiMinea the stamens are completely free, the style is simple, the embryo is much curved or oiled, the albumen is floury, the leaves stipulate and usually alternate. Finally, more than one analogy has been noticed between llypericinea and Myrtacca? (see this family). Ify/H-ruincre are spread over the temperate and hot regions of the globe, and especially in the n irthern hemisphere. 1'liey are not rare in tropical America; but become so in equinoctial Asia and Africa. IfyjHi ii imi, , like Gu/tifera, possess balsamic resinous juices which flow abundantly from the woody species, and which in the herbac >> i~ ones are secreted by black or pellucid glands sunk in the paren- 268 XXXI. GUTTIFERiE. cbyma of the leaves. With these juices is present a certain quantity of volatile oil and a hitter ex- tractive in the hark, which give different properties to Hypericinece. The indigenous species of St. John's Wort, formerly recommended as astringent, are no longer used, except Hypericum perforatum , of which the tips infused in olive oil are rubbed in for gouty pains. The Tutsan (11. Androscemum), formerly used as a vulnerary, has fallen into disuse without good reason. Cratoxylon Hornschuchii, a small Javanese tree, is employed in that country as an astringent and diuretic. XXXI. GUTTlFERyE. (Guttifer^e, Jussieu. — Garcinie^e, Bartling. — Clusiace^e, Lindl.) Clusia angularis. £ flowers. Chrysopia Clusia <£. urophylla. Tart of androecium Vertical section (mag.). of pistil (mag.). Chrysopia. Chrysopia. Flower without its Petal corolla. (mag.). XXXI. GUTTIFERJE. 209 (farcin ia Mungostana. Fruit. (fare ini a Mangostana. Berry with thick bark, the upper portion removed to show the cells. Pilosperma can datum. Vertical section of ovary (mag.). Pilosperma, Embryo (mag.). Pilosperma, Seed, entire, with its arillode. Pilosperma. Seed cut vertically. h, hilum ; vi, micropyle. Embryo exalbximinous, straight. — Stem woody. Leaves Flowers polygamo - i lioecious , rarely 5 . Calyx 4-6-poly -phyllous. Petals hypogynous, equal with the sepals . rarely more numer- ous. Stamens indefinite, rarely definite, free, or monadelphous or polyadel- phous. Ovary 2-co -celled, rarely 1 -celled. Ovules l-x> in the cells, ascending or erect, anatropous. Fruit a capsule, drupe, or berry, opposite. Trees or shrubs, sometimes climbing or epiphytal, with resinous usually yellow or green juice, branches opposite, generally tetragonous, jointed. Leaves opposite, usually decussate, rarely wliorled, coriaceous, mostly shining, penninerved, secondary nerves transverse, rarely pellucid-punctate ; petiole jointed at its base to the branch, entire and exstipulate, or very rarely pinnatisect and stipulate ( Quiina ). Flowers white, yellow or red, regular, polygamo-dioecious, or £ , terminal or axillary, solitary, or in fascicles or few-flowered cymes, trichotomous panicles, or racemes. Sepals 2 0, rarely more, imbricate, or decussate in pairs, sometimes furnished with pairs of decussate bracts. Petals 2-0, rarely more, hypogynous, imbricate or contorted, rarely decussate in pairs, very rarely 4, sub-valvate. — Flowers $: Stamens in- serted on the receptiiele, numerous, or rarely definite and equal or double the number of the petals; filaments often thick or short, free or variously connate, sometimes united into a fleshy mass, or in bundles equalling in number and opposite to the petals, sometimes long and filiform; anthers 2- (rarely 1-) celled, cells usually linear, 270 XXXI. GUTTIFERiE. adnate or terminal, extrorse or rarely introrse, sometimes sessile, or plunged in the mass of the filaments, opening longitudinally, or by an apical pore. Ovary rudi- mentary, or more or less developed. — Flowers ? and $ : Staminodes or stamens surrounding the ovary, often definite, fewer and less coherent than those of the $ flower. Ovary seated on a flat receptacle or a fleshy disk, 2-many-celled, rarely 1 - celled ; stigmas as many as cells, sessile or sub-sessile, radiating, or coherent and peltate, or radiating at the top of a single elongated style, sometimes distinct on as many styles ; ovules l-oo in the cells, fixed to the central angle, or erect and basal, anatropous. Fruit usually between fleshy and coriaceous, sometimes indehiscent, berried or drupaceous, sometimes with as many septicidal valves as cells. Seeds large, often arillate or strophiolate ; testa thin, coriaceous, or rarely spongy. Embryo straight, exalbutninous, filling the seed, sometimes with a, voluminous radicle and minute or scaly cotyledons, sometimes divided into 2 cotyledons, which are connate, or separable with difficulty ; radicle very short, inferior. PRINCIPAL GENERA. ’Clusia. Garcinia. Calophyllum. Havetiopsis. Cbrysochlamys. - Tovomita. Rheedia. Mesua. Mammea. Quiina. Guttifera are very near Hypericinece and Marcgraviaceee (see these families). They are equally close to Camelliaccce , in their more or less distinct sepals, the aestivation of their petals and connection of fila- ments ; they are distinguished by their opposite leaves, their usually diclinous four-merous flowers witli decussate sepals and petals, their straight embryo, and often inconspicuous cotyledons. All the Guttiferce are intertropical, except a few natives of the warm regions of North America ; they are more numerous in America than in Asia, and are rather rare in Africa. Guttifera owe their name to the yellow or greenish juice which flows on the incision of their stem, and which contains an acrid resin held in solution by a volatile oil, sometimes mixed witli a gummy principle. The acidulous-sugary berries of several species are eatable. The seeds of others contain a fixed oil, and the wood of all is durable, and hence valuable. The inspissated juice of Hebraclendron cambogioid.es, a Ceylon tree, is the saffron-red colored, opaque, smooth, shining substance called gamboge , which is a rich golden-yellow pigment and a powerful purgative. The same is the case with Clusia rosea, a West Indian tree, whose blackish bitter juice, thickening in the air, is frequently used instead of scammony. That of C.Jlava, which is also cultivated in European liot-houses, is praised in Jamaica as a vulnerary. The berries of Calophyllum are sweet, acidulous, and agreeable. C. inophyllum, an Indian plant, affords a purgative and emetic resin, and its root is considered diuretic. That of C. turiferum, a native of Peru, emits a balsamic odour when burned, and is used for incense. C. Calaba, of the Antilles, yields a juice ( accite de Maria ) which rivals copal. Mesua speciosa and ferrea , of India, have very hard and excellent woods ; their aromatic and bitter root and bark are powerful sudorifics. The fruit of the Mnngosteen ( Garcinia mangostana), a native of the Moluccas (now introduced into the Antilles), possesses a bitter and astringent rind, but a delicious pulp which is refreshing and antibilious. The fruit of the Mammea is also eatable, the water distilled from its flowers (eau de Creole) is eminently digestive, and the juice 'of its young shoots yields a very agreeable vinous liquor. XXXJI. CAMELLIACEiE. 271 XXXII. CAMELLIA CEEE. (Ternste(EMIE^e, Mirbel. — Ternstrcemiace^e, D.C. — Theace^e, Mirbel .■ — Camellie^e, D.C. — Camelliace^e, Bartling.) Camellia olei/era. Camellia. Transverse section of ovary. Tea. Fruit (mag.). Tea. Seed, entire and cut vertically (mag.). Gordonia. T istil (mag.). Gordonia. Vertical section of ovary (mag.\ Gordon ia. l'lower-bud (mag.). Gordon ia. Androecimn and pistil (mag.). Gordon ia. Embryo cut (mag.). 272 XXXII. CAMELLIA CEiE. i. Jy i Ternstroemia pednnculata. Ternstroemia . Stamen (mag.). Ternstroemia. Diagram. Ternstroemia. Ovule (mag ). Petals hypogynous, usually 5 , free or nearly so, imbricate or contorted. Stamens usually indefinite, hypogynous. Ovary usually 3—5 -celled. Ovules pendulous or XXXII, CAMELLIACE2E. 273 ascending. Fruit indehiscent or capsular. Embryo ea. albuminous or albuminous.— ■ Stem woody. Leaves generally alternate. Large or small trees with watery juice and cylindric branches. Leaves alternate, often fascicled at the top of the branches, very rarely opposite ( Caryocar , llaploclathra, &c.), usually simple, rarely digitate ( Caryocar , Antliodiscus), coriaceous or membranous, penninerved, entire or toothed ; stipules 0, or very rarely 2, minute, caducous. Flowers 5 , rarely diclinous ( Actinidia , Omphalocarpum, &c.), regular, sometimes axillary, solitary or fascicled, sometimes in a terminal raceme or panicle ; peduncle jointed at its base, naked or bracteate. Sepals 5, rarely 4-6-7, free, or slightly connate at the base, imbricate. Petals 5, rarely 4-6-9, hypogynous, free, or oftener coherent at the base into a ring or short tube, aestivation imbricate or contorted. Stamens usually indefinite, rarely equal with the petals ( Pentapliylax , PelPciera), or double (Stachyurus) , hypogynous, free or variously coherent at the base, or adherent to the base of the corolla ; anthers basifixed and erect, or dorsifixed and versatile, cells parallel, opening by a slit, or sometimes by an apical pore (j Saurauja, Pentapliylax). Ovary free, sometimes more or less buried in the torus (Anneslea, Visnea), base large and sessile, 3-5- (rarely 2-) celled ( Pelliciera ), ormany- celled ( Antliodiscus , Omphalocarpum, &c.) ; styles as many as cells, free or more or less connate ; stigmas pointed or obtuse ; ovules 2-oo in each cell, rarely solitary, erect, or horizontal and anatropous, or pendulous and anatropous, or campylo- tropous, sometimes fixed laterally and semi-anatropous. Fruit fleshy or coriaceous and indehiscent, or a loculicidal or septicidal capsule. Seeds numerous or few, fixed to the inner angle of the cells on projecting fleshy or spongy placentas; albu- men often scanty or 0, rarely copious ( Actinidia , Saurauja, Stachyurus) . Embryo straight, curved or coiled; cotyledons sometimes semi-cylindric, continuous with the radicle, but shorter, sometimes larger, flat, crumpled, folded lengthwise, or thick and fleshy. Tribe I.1 R HIZOB 0LE2E. Petals imbricate, or united in a cap. Anthers dorsifixed, sub-versatile. Fruit indehiscent. Seeds solitary in the cells ; albumen 0 or very scanty ; radicle superior, very large, bent at top, or coiled ; cotyledons minute. — Leaves digitate. Racemes terminal. GENERA. Caryocar. Antliodiscus. Tribe II. TERNS TRCEMIE2E. Petals imbricate. Anthers basifixed. Fruit rarely dehiscent. Seeds generally few ; albumen fleshy, usually scanty ; embryo indexed or arched ; cotyledons shorter and not broader than the radicle. — Trees or shrubs. Peduncles one- flowered. Visnea. ’ Ternstrcemia. PRINCIPAL GENERA. Tentaphylax. Adinandra. Cleyera. Freziera. Eurya. ' These tribes are taken from the ‘ Genera Plantarum,’ omitting Marcgravica, for which see p. 275. — Ed. T 274 XXXII. CAMELLIACE2E. Tribe III. 8 A ERA UJEjE. Petals imbricate. Anthers versatile. Fruit very rarely sub-dehiscent, usually pulpy. Seeds numerous, small ; albumen copious ; embryo straight, or slightly bent, radicle usually longer than the cotyledons. — Trees or upright or twining shrubs. Peduncles many-flowered. PRINCIPAL GENERA. *Saurauja. Actinidia. Stachyurus. Tribe IV. GORDONIE^J. Petals imbricate. Anthers versatile. Fruit loculicidal (Camellia, Thea, Stuartia), or indelaiscent (Pelliciera, Omphalocarpum) . Albumen usually 0, or scanty ; cotyle- dons thick, flat, or crumpled or folded ; radicle short, straight or inflexed. — Trees or erect shrubs. Peduncles 1-flowered. PRINCIPAL GENERA. * Stuartia. *Gordonia. * Camellia. *Thea. Schirna. Pyrenaria. Laplacea. Tribe V. B0NNETIE2E. Petals contorted. Anthers versatile or sub-basifixed. Capsule septicidal. Albumen 0, or very scanty ; embryo straight ; cotyledons large ; radicle short. —Erect trees. Flowers in terminal panicles or in axillary racemes. PRINCIPAL GENERA. Bonnetia. Mali urea. Caraipa. Mania. Kielmeyera. Camelliaccee liave many affinities: 1. With polypetalous polyandrous hypogynous families with a plurilocular ovary (see Hypericinece and Guttiferce). They scarcely differ from Bixinece, to which they are united by Cochlospermece, except in their ovary with perfect cells, and their exstipulate leaves. They approach Dipterocarpece in the polysepalous calyx, the polypetalous hypogynous corolla with imbricate aestivation, the polyandry, the several-eelled ovary which is broadly sessile or slightly buried in the torus, the exalbuminous seed, the woody stem and the alternate leaves ; but Dipterocarpece are separated by their persistent and usually accrescent calyx, their one-celled and one-seeded fruit, their habit, and especi- ally by their resinous juice. They have also some affinities with Tiliacece , which principally differ in the valvate calyx. 2. With monopetalous families (see Ericinece, Styracece and Ebenacece). They are further connected with Sapoteee through Eurya and lernstrcemia, whose corolla is monopetalous, imbricate, diplo- or triplo-stemonous, the fruit a berry, the stem woody, and the leaves alternate and coriaceous ; but Sapoteee have extrorse anthers. Camelliacece principally inhabit tropical America and eastern Asia; very few are met with in North America, and one species only ( Visnea Moccanera ) in the Canaries. Some species of Saurauja and Kielmeyera are mucilaginous and emollient. Gorclonia contains an astringent principle, and is used in tanning leather. The seeds of Camellia japonica, introduced into Europe in 1739, are valued in eastern Asia on account of the fixed oil which they contain. Its leaves have a slight tea-like scent. The most important species of this family is the Tea {Thea chinensis ), which some authors place in the genus Camellia. Two centuries have not elapsed since Tea was first used in Europe, and the annual importation now exceeds twenty-two millions of pounds. The stimulating property of Tea is due to an astringent principle, an azotized substance called theine, and especially a small XXX [II. MARCGRAVIACEiE. 275 proportion of slightly narcotic volatile oil ; the leaves also contain a considerable quantity of casein, a very nutritious substance, which is not soluble in water; whence the Tibetans, after drinking the infusion, eat the boiled leaves mixed with fat, which forms a substantial food. The two principal Teas of commerce, t/rren and black, belong to the same species; their difference is simply due to a peculiar preparation of the leaf before it is dried. Many varieties of green and black Teas are distinguished ; that called Pekoe is a green tea much prized for its scent, which is given to it by the flowers of Olea fraejrans. The Chinese perfume other teas with various scented flowers, such as the Jasminum Sambac and Camellia Sesanqua. Many attempts have been made to cultivate tea in Brazil and in Europe, but the produce cannot be compared with that from China. XXXIII. MARCGBA VIACEpE. (Marcgraviace.e, Jussieu.- — Marcgravie.e, Planclion. — Ternstrcemiacearum tribus, Benth. and Hook, jil.) Marcg ratio umMlata. Inflorescence surmounted by saccate bracts. Marcgravia. Corolla (uiag.). Marcgravia. Pistil (mag.). T 2 XXXIII. MARCGEAVIACE/E. Trees or unarmed shrubs, erect, climbing, or epiphytal. Leaves alternate, simple, penninerved, entire, glabrous, shining, jointed to the branches, exstipulate. Flowers $ , regular, in umbels, racemes or terminal spikes ; peduncles jointed at the base, usually furnished with bracts, which are sometimes saccate or hooded and petioled ; bracteoles at the base of the calyx, minute and resembling an outer calyx, or 0. Calyx of 2-3-5-6 subequal sepals, distinct or slightly connate at the base, imbricate, coriaceous, usually coloured, deciduous. Petals imbricate, inserted on the receptacle, free or connate at the base, equal and alternate with the sepals ; or more numerous, united into a cap which circumscisses at the base. Stamens inserted either below the ovary, or on the edge of a flat disk girding the base of the ovary, very rarely equal and opposite to the sepals ( Ruyschia ), generally more numerous ( Marcgravia ); filaments free or connate at the base, sometimes adnate to the base of the petals ; anthers introrse, ovoid, linear or oblong, basifixed, cells opposite, contiguous, opening longitudinally. Ovary sessile, free, sometimes girt at its base by the staminiferous disk, 3-5-many-celled ; stigma sessile or subsessile, radiating ; ovules numerous, attached to the fleshy and projecting lobes of the Marcgravia umbellata. Umbel of fruits. Marcgravia. Marcgravia. Transverse Seed, entire anri cut vertically section of ovary. (mag.). Marcgravia. Septum and placenta covered with seeds (mag.). Marcgravia. Pistil cut vertically (mag.). XXXIY. DIPTEROCARPEiE. 277 ascending or horizontal placentas. Fruit indehiscent, or opening gradually at its base, loculicidal, valves semi-septiferous ( Ruysehia ). Seeds few, sunk in the fleshy placentas, ascending, oblong ; testa areolate, liilum lateral, endopleu/ra membranous. Embryo exalbuminous, subclavate, straight or slightly arched; cotyledons obtuse; radicle long, conical, acute, near the liilum, inferior. GENERA. Ruyschia. Marcgravia. *Norantea. This little group is closely allied to tlie various tribes of Ternstrcemiacecc, and is considered one of them by Bentham and Hooker fil. Of these tribes, however, 1, Rhizobolem differ in their versatile anthers, superior radicle, and opposite and digitate leaves ; 2, Ternstrcemiece differ in their one-flowered peduncle ; 3 Sawaujeee in their versatile anthers and copious albumen ; and others in their contorted petals and septicidally dehiscing capsule,1 &c. Marcgraviaceee. are also distinguished by their sessile radiating stigma, and especially by the singular conformation of their bracts, saccate in Marcgravia , and hooded in Norantva. They are also very near Gvitiferee, from which they are only separated by their basifixed anthers, their alternate leaves, and their saccate bracts. Marcgraviaceee inhabit tropical America. The root, stem, and leaves of M. umbellata are renowned West Indian diuretics aud antisyphilitics. XXXIV. DIPTEROCARPEIE ,2 Blame. [Trees, rarely shrubs, often gigantic, exuding a resinous juice, rarely climbing ( Auristrocladus ). Leaves alternate, penninerved, quite entire, rarely crenate ; stipules small cr large, caducous or persistent, sometimes sheathing and leaving an annular scar on the branch. Flowers regular, $, often odorous, in axillary pani- cles, ebracteate or with minute deciduous rarely large persistent bracts. Calyx in flower free and campanulate, rarely short or adnate to the torus or base of the ovary ; segments 5, imbricate when young, sometimes sub-valvate in age ; fruiting calyx enlarged, segments unaltered, or 2 or all foliaceous or variously expanded. Petals 5, strongly contorted, free or connate at the base. Stamens either oo oo - seriate, or 15 2-seriate, or 10 in pairs, 5 exterior and 5 interior, or 5 or 10 1-seriate, inserted on a hypogynous or sub-perigynous torus ; filaments short, often dilated at the base, free or connate at the base, or cohering with the petals ; anthers e rect, 2-celled, dehiscence introrse or lateral, cells equal or one smaller, connective sometimes acuminate or aristate. Ovary inserted by a broad base or sub-immersed, 3- (rarely 1- or 2-)celled ; style subulate or thickened ; stigma simple or 3-lobed ; ovules in jiairs, pendulous or laterally attached, anatropous with superior micropyle and ventral raphe, or 1 or more erect in the 1-celled ovary. Fruit free or adnate to the calyx, 1- (rarely 2-) seeded, indehiscent or at length 3-valved. Seed usually inverted, rarely erect, testa thin, albumen 0 ; cotyledons either thick and equal or unequal, straight or lobed and plaited, or thin and corrugated ; radicle next the liilum, either short and exserted, or long and included in a fold of the cotyledons. 1 This is an error: Gordonictt are loculicidal. and have imbricate petals like Marcgraviete. — Ed. * This order is omitted in the original. — Ed. 278 XXXV. CHUINACM. PRINCIPAL GENERA. Dryobalanops. Dipterocarpus. Auisoptera. Vatica. Lopliira. Sliorea. Hopea. Dovua. Vateria. Monoporandra. ? Ancistrocladus. Dipterocarpece are allied to Tiliacecc and Ternstrcemiacece, differing from both in tbeir resinous juice, from the former in their imbricate calyx, and from the latter in their enlarged fruiting calyx and solitary exalbuminous seed. The remarkable Indian and African genus Ancistrocladus , -which is a climber, has little affinity with the rest of the order, and has been referred to Terebinthacece by Thwaites, and doubtfully placed near Gynocarpece by Oliver. All are natives of the hot damp forests of India and the Malayan islands, except a few African species. Many Dipterocarpece are valued for their magnificent timber; as the Sal ( Sliorea robust a), which also yields the Dammar resin, called Ral or Dhooma in India. The famous Borneo camphor is the produce of Dryobalanops Camphora ; it is found in the form of yellow rectangular prisms in fissures of the wood, and is chiefly exported to China, where it is employed as a tonic and aphrodisiac ; in Borneo itself it is used as a diuretic and in nephritic affections, and as a popular remedy for rheumatism. The tree yielding this drug is the noblest in the Bornean forests, attaining 130 feet in height, with gigantic buttresses. The wood is dense and hard, and preferred to all others for boat planks ; it is reddish and fragrant when first cut; the flowers are deliciously fragrant, and the leaves give a blue tinge to water. The resin of Dipterocarpus trinervis is made into plasters, as also into a tincture with alcohol, and into an emulsion with eggs, useful in diseases of the mucous membrane. The Javanese smear the resin on plantain leaves, and thus make torches which yield a white light and have no unpleasant smell. Dammar resin is also yielded by Vatica baccifera and Tumbugoia. Vateria indica yields the Indian Copal, Piney varnish, or white Dammar, sometimes called Indian Animi, which is also used as a medicine and made into candles. Wood-oil is the produce of various species of Dipterocarpus, as Icevis, angustifolius, zeylanicus, hispidus. Dovua zeylanica exudes a colourless gum-resin, much used in Ceylon as a varnish. — Ed.] XXXY. CEL JEN A CEvE, 1 Thouars. [Shrubs or trees. Leaves alternate, quite entire, coriaceous, penninerved, folded in bud ; stipules 0 or very caducous. Flowers $ , regular, in dichotomous cymes or panicles, bracteolate or involucellate. Sepals 8, free, imbricate. Petals 5-6, contorted in bud, free, bypogynous. Stamens 10-co . inserted within an entire or toothed cup ; filaments filiform ; anthers versatile, dehiscing longitudinally, con- nective often produced. Ovary 3-celled ; style long, simple ; stigma 3-lobed ; ovules 2 pendulous, or 00 horizontal in each cell, anatropous. Capsule loculicidally 3- valved, or by arrest 1-celled and 1-seeded. Seeds pendulous or sub- horizontal ; testa, coriaceous; albumen fleshy or horny. Embryo straight; cotyledons leafy, flat or plaited ; radicle superior. GENERA. Sarcokena. Leptolaena. Schizolmna. Rhodolmna. A small and little known Madagascan order, allied to Tiliacecc, but with imbricate sepals ; also allied to Ternst.rccmiacece, but distinguished by the stipules, inflorescence, staminal cup, and uniformly contorted petals. From Dipterocarpece it differs in having albuminous seeds. Nothing is known of the uses of this order. — Ed.] 1 This order is omitted in the original, and is supplied here from the ‘ Genera Plantarum.’— Ed. XXXVI. MALVACEAE 279 XXXVI. MAL VA CEyE. (Malvaceae, Jussieu, Br., Kunth, Bartling, Lindl.) Mallow. Transverse section of flower (mag.), Mallow. Diagram, Mallow. (JAiira x>/ltfslrit.) Mallow. Carpel cut vertically Mallow. (mag.). Seed (mag.). Mallow. Embryo (mag.). Mallow. Andrcecium (mag.). Mallow. Stamen (mag.). Mallow. Pistil and calyx. Mallow. Fruit. Mallow. Part of OTary cut transversely (mag.). Mallow. Calyx and calycula. Mallow. Calyx and calycula. Lavatera. Vertical section of ovary 280 XXXYI. MALVACEiE. Plagian th us ( Ph ilippodendron ) . Androecium and petals. Plagianthus. Flower cut vertically (mag.). Althaea. Calyx and pistil. Althaea officinalis. Calyx generally 5 - lobed, valvate. Petals contorted , equal and alternate with the calyx- lobes, hypogynous, bases very often adnate to the staminal tube. Stamens oo , hypogynous ; fila- ments more or less monadelplious, alternate or opposite to the calyx- lobes ; anthers 1-celled, pollen echinulate. Ovary of many carpels, whorled or agglomerated into a head. Fruit usually dry, rarely a berry. Seeds reniform, ascending, horizontal or pendulous ; albumen scanty. Embryo curved-, cotyledons folded on each other. Herbs, shrubs, or trees, with light and soft wood. Leaves alternate, simple, usually palminerved, entire or palmilobed, hairs usually stellate; stipules 2, lateral, persistent or deciduous. Flowers $ , regular, axillary, solitary or agglomerated, sometimes in a raceme, corymb, or panicle. Calyx with an involncel of whorled bracts, rarely naked ( Sida , Abutilon), 5-fid or -partite, rarely 3-4-fid, valvate in {estivation, persistent or rarely deciduous. Petals equal and alternate with the calyx-segments, inserted on the receptacle, claw very often adnate to the staminal tube, limb usually inequilateral, aestivation contorted. Stamens connate in a tube or column enclosing the ovary with its dilated base, sometimes divided at the top into segments alternate or opposite to the calyx-lobes, and separating into numerous antheriferous filaments, sometimes emitting shortly stipitate or sessile anthers from XXXVI. MALVACEAE. 281 its outer surface; anthers reniform, simple, 1-celled, opening in 2 valves by a semi- circular slit ; •pollen echinulate. Ovary sessile, composed of 5 or more carpels, rarely 3-4, sometimes whorled around a more or less developed central axis, sometimes dilated at the top, sometimes attenuated into a column, free or connate, sometimes agglomerated into a bead ; styles terminal, united below, stigmatiferous at tlie top ( Abutilon , Hibiscus, Ac.), or throughout their length ( Malva , Lavatera, Malope, &c.) ; ovules one or more on the ventral angle of each carpel, campylotropous or semi- auatropous, sometimes ascending or horizontal, with a ventral or superior raphe (Callirkoe), sometimes pendulous with a dorsal raphe (Sida). Fruit of several free cocci, or septicidally splitting into cocci which are indehiscent or ventrally dehiscent, sometimes a loculicidal capsule, with 5, 3, or several septiferous valves ; very rarely fleshy (Malvaviscus). Seeds reniform; testa crustaceous, usually wrinkled, sometimes hairy ( Gossypium , Fugosia, Hibiscus), rarely pulpy; albumen mucilaginous, scanty or 0. Embryo curved; cotyledons foliaceous, plaited, or variously contorted; radicle next the liilum, inferior in the ascending seeds, bent upwards in the pendulous ones. Tribe I. MAL0PE2E. Calyx involucelled, or rarely naked. Carpels numerous, 1-celled, 1-ovuled, joined into a capitulum, separating from the axis when ripe. PRINCIPAL GENERA. •Malope. * Kitaibelia. *Palava. Tribe II. MALVEAE. Calyx involucelled. Carpels 5-cc , whorled, separating from the axis when ripe, or united into a capsule with several cocci. PRINCIPAL GENERA. •Althaea. * Lavatera. * Malva. * Spliaeraleea. *Pavonia. *Goetliea. Tribe III. HIBISCE2E. Calyx involucelled. Carpels 3-5-10, united into a loculicidal capsule, rarely inde- hiscent ( Thcspesia ), or berried (Malvaviscus) . PRINCIPAL GENERA. •Hibiscus. ‘Malvaviscus. ’Lagunaria. * Gossypium. Tribe IV. SIDEHd. Calyx naked. Carpels o-oo , rarely 1-2 ( Plagianthus ), whorled, united into a loculicidal capsule of many cocci. PRINCIPAL GENERA. * Sida. * Abutilon. * Plagianthus. 282 XXXVI. MALVACEAE. [As the above enumeration omits Bombacece, I have given the following descrip- tion of the tribes and genera of this extensive family, which is that adopted in the £ Genera Plantar urn.’ Tribe 1. Malve®. — Staminal column antheriferous to the top. Styles as many as ovarian cells. Carpels separating from the axis (except Bastardia and Hoivittia). Cotyledons folia- ceous, folded or contorted. Sub-tribe 1. Malope®. — Carpels oo , densely congested ; ovule 1, ascending. Malope, Kitaibelia, Palava. Sub-tribe 2. Eumalye®. — Carpels in one whorl ; ovule 1, ascending. Althaea, Lavatera, Malva, Calirrhoe, Sidalica, Malvastrum. Sub-tribe 3. Side®. — Carpels in one rvhorl ; ovule 1, pendulous. Plagianthus, Holier ia, Anoda, Crist, aria, Gaya, Sida, Bastardia. Sub-tribe 4. Abutile®. — Carpels in one whorl ; ovules 2-oo (except one species of Wissadula) . Hoivittia, Kydia, Wissadula, Abutilon, Sphcerrhea, Modiola. Tribe II. Urene®. — Staminal column truncate or toothed, anthers on its outer surface. Style-branches 10. Carpels 5, separating from the axis. Cotyledons of Malveas. Malaclwa, TJrena, Pavonia, Goetliea, Malvaviscus. Tribe III. Hibisce®. — Staminal column of Ureneie. Styles as many as the ovarian cells. Carpels loculicidal, persistent. Cotyledons of Malvern. Kostelclylcya, Desaschista, Hibiscus, Lagunaria, Fugosia, Thespesia, Gossyp'^um, &c. Tribe IV. Bombace®. — Staminal column 5-8-cleft at the top, or rarely to the base, rarely entire. Anthers free, reniform, or cells adnate, globose, linear, oblong, or contorted. Style entire or with as many branches as ovarian cells. Capsule loculicidal or indehiscent, carpels usually persistent. Cotyledons variable. — Trees. Sub-tribe 1. Adansonie®. — Leaves digitate. Bracteoles distinct or 0. Cotyledons crumpled or convolute. Adansonia, Pachira, Bombax, Friodendron, Chorisia. Sub-tribe 2. Matiscie®. — Leaves simple, 3-5-nerved. Bracteoles distinct or 0. Petals 5. Cotyledons twisted or convolute. Hampia, Cavanillesia, Matisia, Ochroma. Sub-tribe 3. Fremontie®. — Leaves of Matisciese. Petals 0. Anthers 5 2-celled, or 10 1-celled, adnate in pairs to the branches of the staminal column. Cotyledons flat. (Probably a tribe of Steixuliacece.) Sub-tribe 4. Durione®. — Leaves simple, penninerved, quite entire, lepidote beneath. Flowers involucellate. Fruit muricate. Cotyledons various. Cullenia , Durio, Boschia, Neesia, &c. — Ed.] Malvaceae are closely allied to S'termliacece and Tiliacece (see these families). They are so near Bombacece that Bentliam and Hooker fil. have united them ; having separated them from Stcrcidiacece on account of their one-celled anthers, which are only apparently two-celled in certain genera in which they are united in pairs; whereas Sterctdiacece, whose anthers are apparently one-celled, are so through the confluence of the cells. In Bombacece the staminal column is more or less deeply divided into 5-8 branches, each bearing 2-oo anthers, sometimes free and reniform {Adansonia), sometimes adnate, globose ( Codostegia ), or linear {Matisia), or sinuous (Ochroma) ; the capsule is loculicidal or indehiscent; the cotyledons are coiled {Ochroma), or folded and contorted {Adansonia, Bombax, k c.), or flat {Cheirostemon). Mahacece have also some vegetative characters in common with Urticece. XXXVII. STERCULIACEiE. 283 To the normal monog} nous or digynous species of Plagianthus have been joined Philippodendron, of l’oiteau, a plant remarkable for the tenacity of its liber fibres.1 Malvaccre are essentially tropical, diminish- ing rapidly as they recede from the equator, and they are more numerous in the northern tropics and in America than in the Old World. An emollient mucilage abounds in most of the species ; some contain free acids, and are employed as refreshing drinks ; others are classed among stimulants, on account of a contained hydrocarbon, which acts on the mucilage. The seeds contain a fixed oil, and their testa is often woolly ; the bark of many is very tenacious. The leaves and flowers of Mallows ( Malva sylvestris and rotund folia), the root and flowers of Guimauve ( Altluca officinalis) and of AltTuca rosea are emollients. Those Malvaceae which have acid juice are principally the white and red Ketmies, Oscilles de Guin6e ( Hibiscus Sabdanffa and diyitatns), natives of tropical Africa, but now cultivated throughout the tropics on account of the free oxalic ncid which exists in their mucilage. IT. esculentus is a widely diffused tropical annual; its green capsule is largely consumed, either by dissolving its mucilage in boiling water, to thicken soups, or else cooked and seasoned. The root of the Indian Pavonia odorata is aromatic and a febrifuge. That of Sid a lanccolata is praised by the Indians as a stomachic. Hibiscus Abelmoschus is an annual herb, a native of India and Egypt, which has been introduced into the Antilles ; its seeds ( graina d'Ambretta) have a powerful musky principle, used by perfumers. Hibiscus Posa- Sinensis contains a colouring principle in its flowers which tho Chinese make use of to blacken their shoes and eyebrows. Altheea Cannabina, a native of South Europe, has tenacious fibres like hemp, as which it is used. The genus Gossypium consists of herbs or shrubs, whose capsule contains numerous ovoid seeds with a spongy testa covered with woolly hairs called Cotton, easily spun, and the source of an immense commerce between the two worlds. These plants are indigenous throughout the tropics, but their cultivation has been gradually extended into temperate latitudes. The principal species, G. lierbaccum, from Upper Egypt ; G. arboreum and religiosum , from India ; G. pentvianum and hirsiUtan, from the New World, &c., are as yet imperfectly defined. Cotton was known in Egypt in the earliest times. Cotton seeds further yield by expression a fixed oil, whi -h i< used for burning, cattle food, and for the manufacture of soap. Among Bombacece, the Durian produces a large foetid fruit, the flavour of which is pronounced to be unequalled, after habit has over- come its disgusting smell. The Baobab has an oblong fruit, the size of a melon, filled with acidulous white pulp, much sought by the negros as a preservative from dysentery ; its bark is a febrifuge. Boinb'H err are all arborescent, and principally tropical, and include some of the largest trees in the Vegetable Kingdom; as Boinba.v, Adansonia, Pachira, Burio, Keesia, &c. The most remarkable is the Baobab ( Adansonia diyi/ata), a tree of tropical Africa, introduced into Asia and America; the thickness of its trunk is enormous, sometimes attaining 100 feet in circumference. Adanson observed in the Cape de Verd Islands Ba babs which had been measured by travellers three centuries before, and from the little growth they had made during that period he calculated that their age must be more than G,000 years. “Such estimates are altogether fallacious; the Baobab is now well known to be a very fast- growing and short-lived tree. — Ed.] XXXVII. ST E RCU. LI ACE EE. (Sterculiacej:, Ventenat. — Sterculiace^e et Buttneriace.e, Endlicher.) Calyx 5-4r-S-merous, valvate. Corolla 0, or petals as many as the calyx ■ lobes, hypogynous. Stamens equal and opposite to the petals, or midtiple, often mixed with slaminodes opposite to the calyx-lobes ; filaments variously coherent-, anthers extrorse. Carpels distinct or more or less united. Ovules ascending or horizontal, anatropous • r orthotmpous. Fruit usually a capsule. Embryo straight or arched, albuminous or cxalbuminom. No more so than the other species of Tlngianthus. — Ed. 284 XXXVII. STEBCULIACEvE. Rutlneria gracilipcs. Theobroma Cacao. Fruit, one-third natural size. Ilermannia. Diagram, showing the stamens enveloped by the base of the petals. Ilermannia. Petal (mag ). Ilermannia. Styles joined at the top. Theobroma. Seed, entire and cut vertically (mag.). Hermann ia. Ilermannia. Diagram of corolla twisted to Diagram of corolla twisted to the right. tli© left. Hermann ia. Ovule (mag.). XXXVII. STERCULIACEiE. 285 Trees or shrubs with soft wood, erect, sometimes climbing perennial or annual ( Ayenia ) herbs, pubescent with starred or forked hairs, often mixed with simple hairs, rarely scaly. Leaves alternate, sometimes simple, penninerved or palmi- nervcd ; sometimes digitate with 3-9 leaflets. Stipules free, deciduous, rarely folia- ceous and persistent, very rarely 0 (Lasiopetalum) . Flowers regular, $, or S/crrulia Mr stain a. Stei 'cttUa plata n ifoliii . Diagram. Sterculia. Flower, entire. Chinese Sterculia. Entire seed (natural size). Sterculia. Flower cut vertically (mag.). Sterculia. Young fruit. Sterculia. Ripe fruit. Sterculia. Flower- bud. S. platanifolia. Seed cut vertically. Sterculia. Embryo. unisexual : inflorescence very various, usually axillary. Calyx usually persistent, 5— 1— 3-fid, or of 5 free sepals, estivation valvate. Corolla 0, or petals hypo- gynous, free, or adnate by their base to the staminal tube, aestivation imbricate, convolute or contorted. Stamens very various; filaments more or less connate into a tubular or urceolate column : (1) staminal tube divided at the top into 5 teeth or tongues ( statu modes ) alternate with the petals, and bearing in the intervals between the staminodes 1-2-5-co anthers opposite to the petals, stipitate or sub- sessile ( Buttneria ) ; (2) staminodes 0, anthers numerous, many-seriate, inserted on the column from the middle to the top (Eriolama), or 1 -seriate at the top of the cup 28 G XXXVII. STERCULIACEiE. (. Astiria ) ; (3) anthers adnate to the top of the column, and arranged in a ring or ■without order ( Sterculia ) ; (4) fertile stamens 5, free or nearly so, opposite to the petals, without staminodes, or alternating with 5 staminodes opposite to the sepals ( Seringia ) ; anthers extrorse, of 2 parallel or diverging- cells, very rarely confluent at the top (Helicteres) , sometimes dehiscing at the top by 2 pores or small slits ( Lasio - petalum, Guichenotia) . Ovary free, sessile or substipitate, 4-5- (or rax-ely 10-12- celled, sometimes of 4-5 (rarely more or fewer) connate or distinct carpels ( Seringia ) ; styles as many as the cells, distinct or more or less connate; ovules 2-oo (rarely 1) in each cell, fixed to the inner angle, ascending or horizontal, anatropons or semi- anatropous, raphe ventral or lateral, micropyle inferior, rarely ortliotropous ( Sterculia Balanghas) . Fruit dry, or rarely fleshy ( Theobroma ), carpels sometimes united into a loculicidal or woody indehiscent capsule, sometimes dividing into follicles or 2- valved cocci. Seeds globose or ovoid, sometimes compressed and prolonged above into a membranous wing, shortly strophiolate, or more often naked ; testa coriaceous or crustaceous, sometimes covered with a succulent epidermis ( Sterculia ) ; albumen .fleshy, often thin or 0. Embryo straight or arched, sometimes dividing the albumen into 2 parts ( Sterculia ) ; cotyledons usually foliaceous, flat, or folded and crumpled, or convolute, rarely fleshy ; radicle short, inferior, pointing to the hilum, or not. Tribe I.1 LASIOPETALEJE. Flowers . Calyx petaloid. Petals 0, or scale-like, flat, shorter than the sepals. Stamens slightly monadelphous at the base, 5 fertile, alternate with the sepals ; staminodes 5 or fewer, opposite to the sepals, sometimes 0 ; anthers incumbent, with parallel cells, or opening at the top by 2 pores. Carpels free, or united into a 3- 5-celled ovary ; ovules 2 or 8 in each cell, ascending. Seeds strophiolate ; albu- men fleshy. Embryo straight or slightly bent, axile ; cotyledons foliaceous, flat. PRINCIPAL GENERA. Seringia. Guiclienotia. ’Tliomasia. * Lasicpetalum. Iveraudrenia. Tribe II. BTJTTNERIEJE. Flowers £ . Petals sessile or clawed, concave or hooded, often produced and tongue-shaped. Staminal tube lobed, some lobes 1-3-antheriferous, opposite to the petals, the others sterile (staminodes), opposite to the sepals. Ovary of 5-2- (or more) ovuled cells. Fruit usually a loculicidal or septicidal capsule. Seeds straight or arched, naked or strophiolate. Embryo albuminous or exalbuminous, straight or curved ; cotyledons sometimes flat and foliaceous, or coiled or crumpled. PRINCIPAL GENERA. Commersonia. *Buttneria. ’Theobroma. Guazuma. Abroma. Herranea. Ayenia. Rulingia. 1 These tribes are taken, in inverse order, from the ‘ Genera Plants nun.’ — Ed. XXXVII. STERCULIACEiE. 287 Tribe III. JIERM ANNIE JE. Flowers g . Petals flat, marcescent, linear, and sometimes convolute ( Visenia) . Stamens more or less monad elphous, equal and opposite to the petals ; staminodes 0, or rarely toothed. Ovary of 1 or several l-oo -ovuled cells. Capsule loculicidal. Seeds ohovoid or reniform ; albumen fleshy. Embryo axile, straight or arched ; cotyledons foliaceous, flat. PRINCIPAL GENERA. * Hermannia. *Mahernia. *Melochia. Waltheria. Tribe IV. DOMBEYEJE. Flowers $ . Petals fiat, often marcescent. Anthers 10-20 with parallel cells, inserted at or near the top of a shortly urceolate or rarely elongated column ; stami- nodes 5 or 0. Ovary sessile, with 5 or more 2-many-ovuled cells. Capsule loculi- cidal or septicidal. Albumen fleshy, scanty. Cotyledons foliaceous, often 2-fid, or folded and contorted, rarely flat. PRINCIPAL GENERA. •Pentapetes. ’Dombeya. * Astrapaea. Trochetia. Astiria. Melhania. Tribe V. ERI0L2ENE2E. Flowers 5 . Petals flat, deciduous. Anthers numerous, multiseriate, stipitate, inserted on the column from the middle to the top; staminodes 0. Ovary of 5-10 many-ovuled cells. Capsule loculicidal. Albumen fleshy. Embryo straight, axile. ONLY GENUS. Eriolsena. Tribe VI. HELICTEREJE. Flowers 5 . Petals 5, deciduous. Anthers 5-15, sessile, or stipitate on the top of an elongated column, alternating in five groups with as many staminodes, or shorter or longer teeth of the column. Albumen fleshy. Embryo straight or arched. PRINCIPAL GENERA. Helicteres. Reevesia. Kleinliovia. Petrospermum. Myrodia. Tribe VII. 8 TERCTJLIEJE. Flowers diclinous or polygamous. Calyx often coloured. Corolla 0. Anthers sometimes 5-15, adnate on the top of a short or elongated column, sometimes shortly polyadelphous or 1 -seriate in a ring; pollen smooth. Ripe carpels free, sessile, or shortly stipitate. Seeds albuminous or exalbuminous. '288 XXXVIII. TILIACEiE. PRINCIPAL GENERA. *Sterculia. Heritiera. Tarrietia. Cola. The above-named tribes, united into one family by Ventenat, and then divided info two, have a^ain been united by Bentlmm and Hooker fil. They are closely allied on the one band to Malvacece, on the other to Tiliacece ; they are distinguished from the first by their two-celled anthers and their generally smooth pollen, and from the second by their extrorse anthers, alternate with the epals when definite, or monadelphous when indefinite. Tremandrecc, which we have annexed to Polygalece (see p. 249), and which approach the tribe of Lasiopetalece in the aestivation of the calyx, the apical dehiscence of the extrorse anthers, the two ovuled ovary cells, the anatropous ovules, the fleshy albumen, the straight axile embryo, are separated by the free filaments, the simple stigma, the pendulous ovule with superior micropyle, the exstipulate leaves, &c. Sterculiacecc belong to tropical and subtropical regions. The tribe of Lasiopetalece inhabits Australia and Madagascar. Some Buttneriece are common to the tropics of both continents ( Buttneria , Guazuma ), others are peculiar to America ( Theobroma), or Asia ( Abroma ), or Australia and Madagascar ( Rulingia ). Commersimia is Australian and tropical American ; Hermanniece principally South African ; Dombeyece inhabit the hot regions of Asia and Africa. Eriolcena is exclusively an Asiatic genus, as are most Helicterece ] although Ilelicteres itself belongs to both continents, TJngeria to Norfolk Island, and Myrodia to America. The tribe of Stercidieee is dispersed over the tropical zone ; Sterculia is almost wholly Asiatic, there being but few African or American species. The known species of Cola are all from A frica. Heritiera is tropical Asiatic and Australian. Sterculiacecc, like Malvacece , contain an abundant mucilage, combiued, in the old bark of the woody species, with a hitter astringent extractable matter, and are stimulants and emetics. The seeds are oily. The fleshy envelope of the seed of Sterculia is eatable ; their seeds, oily and slightly acrid, are used for seasoning food ; their bark is strongly astringent, and some species produce a gum analogous to tragacanth. The most important species of Buttneriece is the Theobroma Cacao, an American tree, cultivated in Asia and Africa. The seeds, which are enveloped in pulp, contain a fixed and solid oil ( cocoa hitter ), a red colouring matter, a substance analogous to tannin, a gum, and a crystallizable azotized principle, called theobromine. The dried and split cotyledons of its seeds are called cocoa-nibs ; and when ground and made into a paste, chocolate, which is rendered more digestible by being flavoured with vanilla or cinnamon. The mucilaginous astringent fruit of Guazuma is used in America for skin diseases. Its sugary and eatable pulp is fermented, and furnishes a kind of beer. Many species of Buttneria, Waltheria and Pterospermum are used in America and Asia as emollients. The bitter and foetid root of Ilelicteres Sacarotha is a reputed stomachic in Brazil, and its bark is frequently used in syphilitic affec- tions. XXXVIII. TILIACECE. (Tiliacea:, Jussieu. — Ela^ocarpea:, Jussieu. — Elaiocarpacea:, Lindl.) Calyx valvate, deciduous. Petals 4-5, hypogynous, aestivation contorted, imbri- cate or valvate. Stamens double or multiple the number of the petals, all fertile, or the outer sterile, free, or in bundles ; anthers 2 -celled. Fruit dry or fleshy. Embryo generally albuminous. — Stem woody, or very rarely herbaceous. Leaves stipulate, usually alternate. Trees or shrubs, rarely herbs. Leaves alternate, rarely opposite or sub-oppo- site ( Plcigiopteron ) simple, penninerved or palminerved, entire or palmilobed, crenu- late or dentate, very often coriaceous, reticulate beneath ; stipules 2, free, deciduous or rarely persistent. Flowers , very rarely imperfect, regular, axillary or terminal, XXXVII I. TILIACEiE. Lime. ( Tilia Europcca.) Lime. Vertical section of flower (mag.). Lime, Embryo laid open (mag.), Lime. Stamen, outer face (mag.). Lime. Seed, entire and cut vertically (mag.). Lime. Flowering and bract cate peduncle. 289 Lime. Diagram. Lime. Transverse section of ovary (mag.). Lime. Fruit (mag.). Vallea. Seed, entire and cut vertically (mag.). U 290 XXXVIII. TILIACEiE. Elceocarpus lanceolalu s. Elceocarpus. Flower cut vertically (mag.). Elceocarpus. Flower (mag.). Elceocarpus. Seed cut vertically (mag.). Elceocarpus. Elceocarpus. Elceocarpus. Transverse section of Seed cut Petal (mag.). ovary (mag.). transversely (mag.). solitary or in small cymes, corymbs, or panicles. Sepals 5, rarely 4-3, free or connate, usually valvate, very rarely imbricate ( Ropalocarpus , Echinocarpus). Petals XXXVIII. TILIACEiE. 291 as many as sepals, inserted around the base of the torus, entire or cut, aestivation contorted or variously imbricate, induplicate or valvate, very rarely gamopetalous (Antlioloma). Stamens usually indefinite, rarely double the number of the sepals ( Triumfetta , Corclinrus), sometimes 10-seriate on the top of a stipitiform torus and distinct from the petals, sometimes covering- the Avliole surface of a discoid torus, sometimes inserted around the edge of the torus next the petals or enveloped by them ; filaments free, or connate into a ring or 5-10 bundles, filiform, all antlieri- ferous, or some not ( Sparmannia , Luliea, Diplodiseus, &c.), sometimes irritable (Sparmannia) ; anther-cells parallel, contiguous, dehiscing longitudinally, or at the top by a pore or transverse slit ( Elceoearpus , Sloanea, Vallea, Aristotelia, &c.), rarely divergent and confluent at the top ( Brownlowia , Diplodiseus). Ovary free, sessile, 2-10-celled ; style simple ; stigmas as many as cells, free or connate, sometimes sessile ( Ca rpodiptera , Muntingia ) ; ovules attached to the inner angle of the cells, solitary or geminate, pendulous from the top of each cell, or ascending from the base ; sometimes few, inserted at the middle of the cell, sometimes numerous, 2 -many-seriate, anatropous or sub-anatropous, raphe ventral or lateral. Fruit of 2-10 cells, or 1-celled by suppression, or many-celled by false septa, sometimes inde- hiscent, nutlike ( Tilia ), or a drupe ( Greivia , Elceoearpus), rarely a berry ( Aristotelia , Muntingia) ; sometimes separating into cocci (Colombia) ; sometimes loculicidally dehiscent, rarely septicidally ( Dubouzetia ). Seeds solitary or numerous in each cell, ascending or pendulous or horizontal, exarillate, ovoid or angular ; testa usually coriaceous or crustaceous, often velvety; enclopleura sometimes hardened at the chalaza; albumen fleshy, copious or thin, rarely 0 (Brownlowia) ; cotyledons folia- ceous, flat, entire or lobed ; radicle inferior or superior or centripetal. Section I. TILIEAE. Petals entire, or contorted. very rarely emarginate, aestivation imbricate, or more often PRINCIPAL GENERA. Browulowia. *Grewin. ’Triumfetta. ’Sparmaunia. ’Corchorus. Luhea. ’Tilia. Apeiba. Vallea. » Section II. ELJEOCA It PEsE. Petals often cut, sometimes entire (Dubouzetia) or 0, usually pubescent, aestiva- tion valvate or induplicate, never contorted. Stamens some in groups opposite to the petals, the others solitary and alternate. PRINCIPAL GENERA. I’rockia. Hasseltia. Sloauea. ’Aristotelia. ’Elieocarpus. ’Monocera. [The ft •flowing tribes of this extensive family have been proposed in the ‘Genera Plantarum ’ : — Series A. Holopetaleae. — Petals usually glabrous, membranous, contracted at the base or clawed, rarely notched, usually contorted. 292 XXXVIII. TILIACEiE. Tribe I. Brownlowie®. — Sepals connate into a 3-5-fid cup. Anthers usually globose or didymous, cells at length confluent at the tips. Broivnlowia, Benga, Christiana, &c. Tribe II. Grewie®. — Sepals distinct. Petals pitted at the base. Stamens inserted at the top of the torus ; anthers short ; cells parallel, distinct. Grewia, Colombia, Triumfetta, Heliocarpus. Tribe III. Tilie®. — Sepals distinct. Petals not pitted at the base. Stamens inserted close to the petals. Entelea, Sparmannia, Corchorus, Luhea, Mollia, Muntingia, Tilia, &c. Tribe IV. Apeibe®. — Sepals distinct. Petals not pitted at the base. Stamens inserted close to the petals ; anthers erect, linear, tipped by a membrane, cells parallel. Glypheea, Apeiba. Series B. Heteropetaleae. — Petals 0 or sepaloid, or incised, often pubescent, not clawed, valvate, rarely imbricate or contorted. Tribe V. Prockie®. — Anthers digynous, subglobose, cells dehiscing longitudinally. Prochia, Hasseltia. Tribe VI. Sloane®. — Anthers linear, cells dehiscing at the top. Torus flat or turgid ; sepals and petals inserted close to the stamens. Vallea, Sloanea, Echinocarpus, Antlioloma. Tribe VII. Eleocarpe®. — Anthers linear, cells dehiscing at the top. Petals inserted around the base of a glandular torus with stamens at its top. Aristotelia, Elceoccupus, Bubou- zetia, &c. — Ed.] Tiliacece and Elceocarpcce, which formerly formed two families, have been united by Endlicher and Bentham and Hooker til. ; the latter have joined Prochia to them, which was formerly placed in Birin etc, but from which they differ in their axile placentation. 'Tiliacece are connected with the tribe Buttneriece of Sterculiaeece by their valvate calyx, their petals which are hypogynous or 0, numerous stamens, fleshy albumen, wood}' stem, alternate stipulate leaves, and stellate pubescence ; besides which, in Elceocarpcce the induplicate base of each petal embraces a group of stamens as in Buttneriece, though in Elceocarpcce there is further one isolated stamen left opposite each sepal. They are similarly related to Malvacecc, which also differ in their one-celled anthers. They also approach Catne/liacece in polypetalism, hypogyny, polyandry, the connate filaments, apical dehiscence of the anthers (observable in the genera Saurauja and Penta- phylax), the several-celled ovary, &c. ; but the valvate aestivation of the calyx separates them. Finally, they have more than one point of analogy with Chlcenacece ; but these are distinguished by their imbricate calyx, and especially by the urceolate filaments. Most Tiliacece are tropical ; a few inhabit the temperate northern hemisphere, and some are found beyond the tropic of Capricorn. Browhlowia and the allied genera are tropical Asiatic and African ; Grewia and Corchorus are natives of the hot parts of the Old World ; Sparmannia, of tropical and South Africa ; Luhea, of tropical and subtropical America ; Tilia, of Europe, temperate Asia, and North America ; Prochia, Hasseltia, Vallea, Sloanea, of tropical America ; Aristotelia, of Chili and New Zealand ; Elceo- carpus , of tropical Asia and Australasia; Antlioloma and Buhouzetia, of New Caledonia, &c. The useful species of Tiliacece are rather numerous. The inner bark of Tilia parvifolia and yrandifolia (the European Limes) contains an astringent mucilage, which is used in Germany as a vulnerary, and its tenacious fibres are used for making cord ; the sugary sap of their trunk is fermentable and yields an agreeable vinous liquor ; their wood is easily worked and affords excellent charcoal ; the flowers, of a balsamic odour, are much used in infusions, and are antispasmodic and diaphoretic, and become astringent when used with the large bract which accompanies them. Triumfetta and Sparmannia africana are mucilaginous plants, and used as emollients. Throughout the tropics, the young fruits and leaves of Corchorus olitorius, when cooked and seasoned, are used as potherbs ; its seeds are purgative. C. tridens, acutanyulus, and depressus are also eatable, and the Arabs employ their tenacious cortical fibres for making- cords or coarse mats. [Jute, the fibre of C. capsularis, has of late become the rival of hemp in the English market; many thousands of tons being annually imported from India.— Ed.] Grewia orientalis and microcos are valuable for their aromatic bitter bark and astringent leaves ; the wood of G. elastica is much valued on account of its flexibility, which fits it for bow-making. [The fruits of G. microcos and asicdica are grateful, and extensively used for sherbet in North-western India. Various other species XXXIX. LINEiE. 293 ■\ ield cordage, and from O. oppositi folia a paper is made. — Ed.] The bitter and resinous hark of EUeocarpus is renowned as a tonic. Their acidulous sugary fruit is eatable, and a stomachic. 1 he kernels of several species, which are elegantly marked, are made by the Indians into necklaces and bracelets. /:. Hiii an, of New Zealand, yields an excellent dye. — Ed.] XXXIX. LINEjE. (Line,®, D.C. — Linace^e, Lindl.) Flax. ( Lin u m usitatissi in um.) Flax. Diagram. Flax. Androccium and pistil (mag.). Flax. Transverse section of ovary (mag.). Flax. Exalbuminous seed, entire and cut vertically (mag.). Flax. Fruit (mag.). Calyx 5-4 -merous, imbricate. Petals 5-4, hypogynous, contorted. Stamens fertile, as many as the petals, with usually as many staminodes. Ovary of 5-4 2 -ovuled cells. Ovules pendidous, anatropous. Styles 3-5, free. Capsule globose, septicidal. Seeds more or less albuminous, rarely exalbuminous. Embryo straight. Stem sometimes herbaceous, annual or perennial; sometimes sub-woody or woody. Leaves alternate or opposite, rarely wborled, simple, sessile, entire, 1-3 nerved, sometimes biglandular at the base, exstipulate ( Linum , Radiola) or with 2 minute lateral stipules, caducous ( Reinwardtia ) or intra-axillary (Anisadenia). Flowers J , regular, usually terminal, in racemes, panicles, corymbs, beads, fascicles or spikes. Calyx persistent, imbricate in aestivation, of 5 entire sepals, or rarely 4-partite with 3-fid lobes (Radiola). Petals clawed, usually 5, rarely 4 (Radiola), claw naked, or furnished with a sort of crest (Anisadenia, Reinwardtia) , inserted on the torus, contorted in aestivation, caducous. Stamens equal and alternate with the petals, sometimes accompanied by as many toothed staminodes opposite to the petals ; Ji lament* flattened-subulate, usually connate into a. short’ cup furnished on the out- 294 XL. ERYTHROXYLEiE. side with 5 little glands, sometimes 0 ( Radiola ) ; anthers introrse, 2-celled, linear or oblong, basi- or dorsi-fixed, dehiscence longitudinal. Ovary usually 5-celled, rarely 4-celled (Radiola) or 3-celled ( Anisadenia , Reinwardtia) , cells subdivided by a more or less perfect dorsal septum ; styles 5, rarely 4-3, filiform, free ; stigmas simple, linear or sub-capitate ; ovules 2-4 ?, pendulous, anatropous. Capsule globose, enveloped by the persistent calyx and androecium, tipped by the style-base, septici- dally dehiscing into as many cocci as cells, or into twice as many by the splitting of each through the dorsal septum. Seeds pendulous, compressed ; testa coriaceous, shining when dry, and developing in water an abundant mucilage ; albumen copious, scanty, or 0. Embryo straight ; cotyledons flat ; radicle contiguous and parallel to the hilum, superior. PRINCIPAL GENERA. *Linum. Itadiola. \Linece, including Erythroxylece, are thus divided in the ‘ Genera Plantarum ’ : — Tribe I. Euline.®. — Petals contorted, fugacious. Perfect stamens as many as petals. Capsule septicidal, rarely indebiscent and 1-seeded. Radiola, Linum, Reinwardtia, Anisadenia . Tribe II. Hugonie®. — Petals contorted, fugacious. Stamens all antheriferous, twice or thrice the number of petals. Drupe indebiscent. Hugonia, Rouclteria. Tribe III. Erythroxyle®. — Petals at length deciduous, imbricate, rarely contorted, with a villous line or ridge on the inner face. Stamens all antheriferous, twice as many as petals. Drupe indebiscent. Erythroxylon, &c. Tribe IV. Trionanthe®. — Petals persistent, contorted. Stamens twice or more than twice as many as the petals. Capsule septicidal. Durandea, Sarcotheca, Phyllocosmus, Xorau- thns, &c. — Ed.] Linece are closely related to Erythroxylece, and more or less to Geraniacece and Oxalidem (see those families). They approach the latter in polypetalism, hypogynism, contorted corolla, clawed caducous petals, false diplostemony ( AverrTioa ), filaments connate at the base, 5-celled ovary with pendulous anatropous ovules, free styles, capitate stigmas, and capsular fruit; but Oxalidem are separated by their compound leaves, copious albumen, and usually arillate seed. The species of Linum are found in all temperate regions ; Radiola is European and Asiatic; Rein- wardtia, tropical Asiatic; Anisadenia, temperate Himalayan. The common Flax ( Linum usitedissimum) is one of the most useful of vegetables ; the tenacity of its cortical fibres places it at the head of textile plants. It is indigenous in the South of Europe and in the East, and its cultivation, which has been carried on from the oldest times, extends to 54° N. lat. The testa contains an abundant mucilage, and the embryo a fixed emollient oil, which is very drying (and hence extensively used by painters). Linum catharticum, an abundant indigenous species, of a slightly bitter and salt taste, was formerly used as a purgative. L. selaginoides is considered by the Peruvians as a bitter aperient. L. aquilinum, a herb of Chili, is there looked upon as refreshing and antifebrile. Many species with red, yellow, blue, and white flowers are ornamental garden plants. XL. ERYTHROXYLEaE , Kunth. Undershrubs, shrubs or trees ; branches usually flattened or compressed at the tip when young. Leaves alternate or rarely opposite, simple, entire, generally glabrous, penninerved, folded lengthwise in bud, and preserving two impressions parallel to the midrib; stipules intra-axillary, concave, scarious, scaly, bracteiform XL. ERYTHROXYLEiE. 295 EryOiroxylon. Flower (rang.). Erythroxylon. Flower cut vertically (mag.). Erythroxylon. Dried fruit (mag.). on the aphyllous peduncles. Flowers ? , regular, solitary or geminate, or fasci- cled in the axis of the leaves or stipules ; peduncles 5-angled, gradually thickened at the top. Calyx persistent, 5-partite, or rarely 5-fid, imbricate. Petals 5, hypogy- nous, equal, appendiculate above their base within by a double ligule, lamella, or rib. aestivation usually imbricate, rarely contorted. Stamens 10, inserted on the receptacle ; f lam ats flattened at the base, and connate into a short tube, filiform and free above ; anthers introrse, 2-celled, ovoid-subglobose, dorsi-fixed, mobile, 296 XLI. 0XALIDE2E. dehiscence longitudinal. Ovary free, 2-3-celled ; styles 3, distinct or connate ; stigmas 3, capitate ; ovule solitary in the cells, pendulous from the top of the inner angle, anatropous, often wanting in 1 or 2 cells. Drupe ovoid, angular, 1-celled and 1-seeded by suppression. Seed inverted, testa coriaceous. Embryo straight, in the axis of a cartilaginous scanty albumen ; cotyledons elliptic or linear, flat, folia- ceous ; radicle short, cylindric, superior. PRINCIPAL GENUS. Erythroxylon. Erytliroxylece are closely related to Lineal, differing only in tlieir always appendiculate and diploste- monous petals, tlieir drupaceous fruit and woody stem. They are near Malpiglducece in hypogynism, diplostemony, connate filaments, ovary cells with one pendulous ovule, distinct styles, woody stem, and stipulate leaves; but in MalpUjhiucece many of the stamens are often suppressed, and the petals have long claws and no appendages, and the stipules are at the base of the petiole. The same affinity exists with Sapindacece, in which also the claw of the petals is glandular or velvety, and which scarcely differ save in their capsular or samaroid fruit and their exalbumiuous seed. Erytliroxylece also approach Geraniacece in their persistent calyx, hypogynism and diplostemonous petals, more or less distinct styles, and stipulate leaves ; but in Geraniacece the carpels are nearly free, the fruit is capsular, the embryo is curved and exalbumiuous. Erytliroxylece inhabit the intertropical regions of the Old and New Worlds. The wood of several species contains a red dye. The young shoots of Erythroxylon areolutum are refreshing: its bark is tonic, and the juice of its leaves is used externally against herpetic affections. The leaves of E. Coca contain a very volatile stimulating principle, producing in those who chew them an excitement of the nervous system, eagerly sought by the Peruvians, and which they cannot do without when they have acquired the habit. XLI. OXAUDEsE. (OXALIDE.E, D.C. — OxALIDACEjE, Lindl.) Calyx 5 -merous, imbricate. Petals 5, hypogynous, contorted. Stamens double the number of the petals. Ovary 5- celled . Ovules 1 -seriate, pendulous, anatropous. Styles free. Fruit a capsule, or rarely a berry. Seeds with abundant albumen. Embryo axile.- — Leaves alternate. Herbaceous annual or perennial plants, stemless or caulescent, rootstock creeping, bulbous or tuberous, rarely sub-frutescent (Connaropsis) , very rarely arbo- rescent (Averrhoa) . Leaves alternate, petiolate, digitate, rarely pinnate, sometimes appearing simple by suppression of the lateral leaflets ; leaflets spirally coiled when young, sessile or rarely petiolulate, entire, often obcordate, usually closing at night ; stipules 0. Flowers $ , regular, sometimes dimorphous, some perfect, others minute, apetalous ; peduncles axillary or radical, 1 -flowered, or branched in an umbel, raceme, panicle or cyme. Calyx 5-fid or -partite or -pliyllous, aestivation imbricate. Petals 5, equal, inserted on the receptacle, longer than the sepals, obtuse, shortly clawed, free, or shortly connate at the base, contorted in aestivation, deciduous. Stamens 10, inserted on the receptacle, connate at the base, the 5 opposite the petals shortest, fertile or antherless ( Averrhoa ) ; filaments filiform or subulate, flattened ; anthers introrse, 2-celled, ovoid or elliptic, dorsifixed, dehiscence longitudinal. 297 Oxalis. Seed cut vertically (mag.)* Oxalis . Seed without its epidermis (mag.). Oxalis. Seed cloth* d with its elastic epidermis (mag.). Ovary o-lobed, cells 5, opposite to the petals; styles 5, filiform, free, or shortly connate, persistent; stiymas capitate, sometimes 2-fid or laciniate; ovules pendulous from the inner angle of the cells, solitary or numerous, 1-seriate, anatropous. Fruit generally capsular, cylindric, ovoid or subglobose, 5-lobed, cells opening longitudinally at the back, valves not separating from the placentiferous column, rarely an oblong 5-furrowed and indeliiscent berry ( Averrlioa ). Seeds pendulous, usually clothed with a fleshy arilliform epidermis which separates elastically; testa crustaceous ; albumen fleshy, abundant. Embryo axile, straight or sub-arclied ; cotyledons often elliptic ; radicle short, superior. PRINCIPAL GENERA. 'Oxalis. Biophytum. Connavopsis. Averrhoa. Oi nli. ft’ii uifvlia. Flower-bud (mag ). I). ten ui folia. Expanded flower (mag.). D. lenui folia. Seed, entire ar.d cut vertically, showing the testa surmounted by a crest. D. tenui folia. Fruit (mag.). D. tenuifolia . Flower cut vertically (mag.). Petals 5-4, inserted on a liypo- gynous disk, imbricate. Stamens equal and alternate with the petals, or double the number. Ovaries distinct or co- herent, 2-ovuled. Fruit a capsule, divid- iiiii info /•/)/*/< / SpmQ n Ill'll wi'ii'l Ml ni* Seed deprived of its testa, D. alba. Diosma. IWJ into COCCI. oELDS aioummous or showing the inner chalaza Seed with lateral Exalbuminous exalinimvnous. Embryo usually straight. (.mag.). hiium(mag.>. embryo (mag.). — Scented PLANTS. Stem woody. Leaves usually glandular-dotted, exstipulate. Small trees or shrubs. Leaves opposite or alternate, coriaceous, usually simple, sometimes 3-foliolate ( Spiranthera , Zieria, &c.), rarely pinnate ( Boronia ), usually glandular-dotted ; stipules 0, or replaced by glands at the base of the petioles. Flowers $ , or very rarely imperfect by suppression ( Empleurum ), regular, axillary or terminal, solitary, or in an umbel, corymb or panicle, rarely in an involu- crate capitulum ( Diplolama ). Calyx 4-5-fid or -partite, imbricate in aestivation. Petals 4-5, inserted under a free or rarely sub-perigynous disk, imbricate in aestiva- tion, usually free, rarely connate, or conniving by their dilated bases into a cylin- drical tube, and then valvate in aestivation ( Correa , Nematolepis, &c.), or 0 ( Em - pleura m). Stamens inserted with the petals, generally equal, rarely double in Y D. tenui folia. 322 LTIT. DIOSMEiE. number (when those opposite the petals are imperfect, or shorter than the others) ; filaments subulate, usually free, rarely monadelphous ( Erytlirochiton ), or adherent to the petals ( Galipea , &c.) ; anthers introrse, 2-celled, dorsifixed near their base ; cells parallel, opening longitudinally ; connective often prolonged into a glandular appendage ( Crowea , Eriostemon, Philotheca, &c.). Carpels 5-3, rarely 1 (Em- pleurum), sessile or borne on a gynophore, girt with a disk at their base, or buried in this disk, united into a deeply-lobed ovary, lobes distinct, cohering only by the styles ; styles as many as ovaries, springing from their ventral edge, distinct at the base, connate above ; stigmas united in a head, lobed or 3-5-furrowed ; ovules 2 in each cell, inserted at the middle of the ventral suture, collateral or superimposed. Capsules of 3-5 cocci, distinct or connate at the base, 1-seeded by suppression ; epicarp dry, sub-coriaceous, glandular-dotted or muricate ; endocarp smooth, cartila- ginous, often elastic and 2-valved. Seeds oblong or sub-reniform ; testa cartilaginous, smooth ; albumen 0, or fleshy. Embryo usually straight, rarely curved ( Almeida , Spiranthera, &c.) ; cotyledons flat or crumpled, enveloping each other, foliaceous in germination ; radicle usually superior, straight or inflexed. Tribe I. EUDIOSME^J. Fertile stamens equal in number with the petals, often alternating with as many staminodes, inserted below the free edge of a disk which lines the calyx- tube. Carpels 2-ovuled. Testa coriaceous or sub-crustaceous. Embryo exal- buminous, straight. — Heath-like shrubs with alternate or opposite simple coria- ceous small and imbricate leaves, rarely trees with large leaves ( Calodendron ). PRINCIPAL GENERA. * Calodendron. ‘Coleonema. ‘Acmadenia. *Adenandra. ‘Diosuia. *Agathosma. ‘Barosma. Tribe II. BORONIEJd. Stamens hypogynous, double in number to the petals, and all fertile, rarely equal and perigynous ( Zieria .). Disk free, cupuliform or annular, sometimes in- conspicuous. Testa crustaceous. Albumen fleshy. Embryo straight, cylindric. — Shrubs, rarely trees. Leaves simple or 3-foliolate or pinnate. PRINCIPAL GENERA. *Correa. ‘Diplolsena. ‘Phebalium. ‘Crowea. ‘Eriostemon. ‘Boronia. ‘Zieria. Tribe III. CUSPARIErfJ. Flowers often irregular, corolla often tubular. Stamens 5, some often imper- fect, sometimes hypogynous, sometimes connate, or adnate to the corolla. Disk usually cupular ( Almeida , Nciuclinia, Ticorea, &c.), or urceolate ( Erytlirochiton ), LIY. ZANTIIOXYLEvE. 323 sometimes columnar ( Spiranthera ), rarely depressed ( Galipea ), or squamiform, unilateral ( Monnieria ). Carpels 2-ovuled ; testa coriaceous ; embryo exalbuminous, curved ; cotyledons crumpled, convolute. — Leaves usually alternate, 1-3-foliolate. PRINCIPAL GENERA. Monnieria. Galipea. *Erythrochiton. Almeidea. Spiranthera. Diosrnecr cannot be separated from Rutaceee (see this family) ; the genus Dintamnus unites them by its irregular tlowers, straight embryo, 4-ovuled ovarian cells, albuminous seed, herbaceous stem, and imparipinnate leaves. Zanthoxylece are equally near, in their regular flowers, polypetalous hypogynous imbricate isostemonous or diplostemonous corolla, free or nearly free carpels with 2-ovuled cells, often elastic endocarp, straight (rarely curved) embryo, woody stem, and usually pellucid-dotted simple or com- pound alternate and opposite exstipulate leaves ; the}’ scarcely differ save in the diclinous flowers and fruit. Diosmea; have nlso some analogy with Simarubeee (see this family). Eudiosmea all belong to South Africa ; Boron iea to Australia, and Cmpariea to tropical America. The volatile oil and the aromatic resin of Eudiosmea: are stimulating and antispasmodic, and many species are thus used bv the natives and colonists of the Cape. The leaves olBarosma crenata also contain a prin- ciple ( d/cwni/ie), owing to which they are now admitted into European medicine as diuretics and dia- phoretics, in affections of the kidneys and bladder, in rheumatism, and even cholera. The properties of Jim oilier,- are little known; in Australia the leaves of Correa are made use of as tea. In the bark of some Cusparieee there is a bitter alkaloid (an gust urine or eusparine), united with a soft resin and a little volatile oil. which places them, after quinine, amongst the most efficacious tonics and febrifuges. According to some this bark is vielded by the Galipea Cusparia, a large tree forming vast forests on the banks of the Orinoco ; necordieg to others, by G. officinalis, a shrub of the same country. The bark of Ticorea febrifuge, a Rnuilian and Guiana tree, L also recommended ns a substitute for quinine. The aromatic and acrid root of Monnieria trifotig, a plant distinguished from its woody congeners by its herbaceous stem, is praised in America ns a diaphoretic, diuretic and alexipharmic. LIY. ZANTHOXYLECE, Aclr. Jussieu. (Dios me arum yenera et Pteleacehs, Kunth. — Xanthoxylace^e, Lindl.) Flowers regular, very often polygamo-dieecioxis. Petals 5-4-3, imbricate or valvate, inserted at the base of a free disk. Stamens inserted with the petals, equal or double them in number. Carpels distinct or connate, 2-ovuled. Fruit a drupe or samara, or of separate dehiscent cocci. Albumen fleshy, rarely 0. Embryo axile, straight or curved. — Stem woody. Leaves exstipulate, usually glanclular-dotted. Large or small trees or shrubs, unarmed, tliorny, or aculeate. Leaves alternate or opposite, rarely whorled ( Pitavia , Pilocarpus), generally pinnate, or imparipinnate, often 1-foliolate by suppression of the lateral leaflets ( Zanthoxylum , Kvodia, Ac.), usually pellucid-dotted, rarely simple ( Skimmia ), petiole sometimes margined or winged ( Zanthoxylum ) ; stipules 0. Flowers usually imperfect, regular, axillary or terminal, mostly arranged in axillary cymes, panicles or corymbs, rarely in racemes or spikes ( Pilocarpus , Esenbeckia), very rarely solitary (Astro- phyllum). Calyx persistent or deciduous, 4 5- (rarely 3-) partite ( Zanthoxylum ), irstivatiou imbricate, or rarely valvate (Melanococca). Petals inserted at the base «»f a free disk, in a ring or cushion, sometimes inconspicuous, imbricate or valvate in 324 LIV. ZANTHOXYLEZE. Zanthoxylum fraxineum 9* Zanthoxylum . 9 flower (mag.)* LIV. ZANTHOXYLEiE. 325 aestivation, deciduous, rarely 0 ( Zantlioxylum ). Flowers $ : Stamens inserted with the petals, equal and alternate, or double in number; filaments filiform or subulate, free ; anthers dehiscing longitudinally. Ovary rudimentary, stipitate, sometimes 0. Flowers $ : Stamens 0 or rudimentary, inserted at the base of the disk, shorter than the ovary. Carpels equal with the petals or fewer, distinct, or connate at the base, or throughout into a several-celled ovaiy ; ovules 2 in each cell, superimposed or collateral, very rarely solitary ( Skimmia ), usually anatropous or semi-anatropous. Fruit sometimes simple, 2-5-celled, fleshy ( Toddalia , Acronychia, Skimmia), or rarely a samara ( Ptelea ), usually a capsule opening in dehiscent shells by their inner edge, sometimes compound, formed of several drupes ( Melanococca , &c.) or capsules ( Zanthoxylum , Boymia ) ; endocarp sometimes separating elastically. Seeds pendu- lous ; testa coriaceous or crustaceous, usually smooth, shining ; albumen fleshy, rarelv 0 ( Vilocarpus , Esenbeckia, Casimiroa ). Embryo axile, straight or slightly curved ; cotyledons oval or oblong, flattened ; radicle shorter than the cotyledons, superior. principal genera. •Skimmia. ‘Zanthoxylum. Pitavia. Toddalia. ‘Ptelea. Acronychia. Zanthoxylece are allied to Rutaceee, Diosmea; and Simaruheee (see these families). They also approach Bunn id' irr in the woody stem, pellucid-dotted compound exstipulate leaves, often polygamo-dioecious flowers, (estivation of the calyx and corolla, annular or cupuliform disk, diplostemony, 2-ovuled ovarian cells, and drupaceous fruit Zanthoxylea also present more than one point of analogy with Anacnrdiaceee ; but they hav m >st affinity with A urantiaeea, so much so that a Skimmia has been described as a species of Limonia. Z< mtho.njlea inhabit the tropical regions of Asia, and especially of America; they are less numerous in extra-tropical America, South Africa, and Australia. Zantlioxylum belongs to the tropical zone of both worlds; Skimmia to Japan and the Himalayas; Toddalia to tropical Asia and Africa; Ptelea to North America. Australia possesses the genera Acronychia, Pentaceras, Medicosma, See. Some species of this family are medicinal: the bark of Zanthoxylum, and especially that of the root, contains a bitter crystallizable principle ( zanthopicrite ), an acrid resin, and a yellow colouring matter. The aromatic root of Z. nitidum is classed in China amongst sudorifics, emmenagogues, and febrifuges; the leaves contain a little volatile oil, whence they are used as a condiment. Z. Budrunya in India is similarly employed. Z. Jtethsa grows on the Indian mountains ; its young fruits have the taste of orange- rind. and its seeds that of black pepper. The capsules of Z. piperitum, all parts of which have an acrid aroma, afford the Japan pepper of commerce. The bark of Z. fraxineum, a native of North America, is a reputed diuretic and sudorific ; it is also chewed to excite salivation and to alleviate toothache. Z. ter- nahim and Clara- Jlerculis are similarly used : they are West Indian shrubs which yield ayellow dye ; their bark is regarded as antisyphilitic and their bitter astringent leaves as a vulnerary. Finally, the seeds of some species are employed to poison fish. Ptelea trifohata, commonly called Three-leaved or Samarian Elm, is a small ( 'andina tree cultivated in Europe; its leaves are considered in North America as a vermifuge, and detergent for ulcers. Its hitter aromatic capsules are a substitute for hops in brewing; but this substitu- tion is not without its inconveniences. Toddalia aculenta , a shrub of tropical Asia, all parts of which contain an aromatic bitter acrid principle, is used by the natives of the Indian Archipelago as a stomachic, a febrifuge, and as seasoning for food. 32G LV. SIMARUBEiE. LV. SIMARUBEIE, D.C. (Simarubace^e, Richard. — Simarube^e, D.G., Planchon, Benth. et Hook, fil.) Ailanlus glandulosa. Ailantus. Ailanlus. Transverse section of seed Embrjo (mag.). (mag.). Ailanlus. Young pistil. Ailantus. Seed (mag.). Ailantus. $ flower (mag.). Ailantus. fetal (mag.) A ilantus. Diagram of base of flower. Ailantus. Young fruit. Ailantus. Ripe fruit. flower. Ailantus. Pistil formed of five adnate carpels (mag.). LV. SI MARUBEiE. 327 Suriana. Carpel cut vertically (mag.). Suriana. Carpel with basilar style. Suriana. Embryo (mag.). Cneorum. Flower (mag.). Cneorum. Diagram. Quassia amara. Disk and ovary (mag.). Cneorum. Vertical section of flower (mag.). Cneorum . Androecitui and pistil. Quassia. Vertical section of carpel (mag.). Quassia. Flower-bud (mag.). Cneorum. Cneorum. Cneorum Incoccum. Vertical section of carpel (mag.). Fruit. Cneorum. Seed, entire and cut vertically (mag.). Flowers diclinous or polygamous. Petals 3-5, rarely 0, hypogynous, imbricate or valvate. Stamens inserted at the base of a hypogynous disk, as many or twice as many as the petals, rarely . Carpels 2-5, free, or connate into a deeply-lobed 1-5- celled ovary. Ovules usually solitary in each cell. Fruit a drupe, capsule or samara. Seeds pendulous, albuminous or not. Embryo straight or bent. — Stem woody. Leaves usually alternate and pinnate, not dotted. Shrubs or scentless trees ; bark often bitter, sometimes extremely so. Leaves alternate, or rarely opposite ( Brunellia , Cneoridium), pinnate, rarely 1-3-foliolate 328 LV. SIMARUBE.E. ( Harrisonia, Brunellia), or 2-foliolate ( Balanites ), or simple ( Cneormn , Casteln, Sovdamea, &c.), not dotted, very rarely stipulate ( Brunellia , Irvingia, Cadellia). Flowers diclinous or polygamous, regular, usually axillary, panicled or racemed, or rarely the $ in a spike, the ? solitary {Picrodendron) . Calyx 3-5-lobed or -partite, regular, very rarely sub-bilabiate {Hannoa), aestivation imbricate or valvate. Petals 3-5, very rarely 0 {Brunellia , Aynaroria), free, or very rarely connivent into a tube {Quassia), liypogynous ; aestivation imbricate, valvate or contorted. Disk annular, cupuliform or tumid, entire or lobed, sometimes elongated into a column {Quassia, Cneorum ), rarely inconspicuous {Suriana, Picrolemma ), or 0 {Spathelia, Bury coma , Cadellia). Stamens inserted at the base of the disk, double the number of the petals, or equal and alternate, very rarely opposite to the petals {Picrolemma, Picramnia ), very rarely more than 10 ( Mannia ) ; filaments free, naked or more often hairy, or furnished with a scale at the base ; anthers oblong, usually introrse, 2- celled, dehiscence longitudinal. Carpels 2 -5, rarely solitary {Cneoridium, Amaroria) , completely free {Brunellia, Suriana), or connate at the base only, or cohering by the styles only, or completely united into a 2-5-celled ovary ; styles 2-5, free at the base and top ; stiymas free or cohering in a head ; ovules usually solitary in each cell, sometimes geminate, very rarely 4-5 {Dictyoloma) , or oo {Koeberlinia) , fixed to the inner angle of the cell, anatropous, raphe ventral and micropyle superior, very rarely ascending with a dorsal raphe and inferior micropyle {Cneoridium). Fruit usually of fleshy or dry drupes, rarely of 2-valved capsules {Dictyoloma, Brunellia), or inde- hiscent {Soulamea), very rarely of samaras ( Ailantus ). Seeds pendulous, usually solitary; testa membranous : albumen usually 0 or scanty, rarely copious {Cneorum, Brucea, Brunellia, Spathelia). Embryo straight or rarely curved {Cneorum, Suriana, Dictyoloma) ; cotyledons plano-convex, or flat, rarely coiled or folded {Harrisonia, Cadellia) ; radicle superior. Tribe I. E JJSIMAR UBE2E. Carpels free or nearly so. PRINCIPAL GENERA. ‘Quassia. Sitnaba. Hannoa. Simaruha. ’Ailantus. Samadera. Castela. Cneorum. Brucea. Prinera. Euryloma. Dictyoloma. Cadellia. Suriana. Brunellia Tribe II. PICRAMNIE2E. Carpels united into a non-lobed ovary, 2-5-1-celled. PRINCIPAL GENERA. Irvingia. Harrisonia. Balanites. Spathelia. Picramnia. Picrodendron. The family of Simanibece, as reconstituted by Bentham and Hooker fil. and Planchon, only differs from Rutaceee, Diosmeee, Zantho.rylece, and Hespcrideee in its eglandular leaves, often hitter bark, and filaments usually furnished with a scale ; characters which, although not of a high intrinsic value, LVI. OCHNACE^E. 329 naturally connect the genera of Simurubece, and clearly distinguish them from the above-named families. The affinity is less close with Zygopkylleee (see this family). They appear somewhat nearer to Ochnaccce (which see). Simurubece mostly grow in the torrid zone. Quassia, Simula, Simaruba, Castela, Picramnia, &c., belong to tropical America ; Hannon, Samndera, Brucea, Balanites, to tropical Africa; the three latter also inhabit Asia, ns well as Picrastna and Ailantus. Suriana is found on sea-coasts throughout the intertropical zone. Soulamea, Eurycoma, and Ilarrisonia, are natives of the Malayan Archipelago and Pacific Islands ; the latter also grows in Australia, as does Cadellia. Cneonnn inhabits the Mediterranean region and the Canaries. Many plants belonging to the genera of the first tribe ( Quassia , Simula, Simaruba) contain a peculiar principle, extremely bitter, in combination with salts, a resinous matter, and a small quantity of volatile oil, which gives them tonic properties, and renders them very digestive. Quassia amara occupies the first rank amongst bitter medicines. The bark of the root and trunk of Simaruba guianensis and amara yield* the Simaruba of the druggist, the virtues of which rival those of Quassia. S. versicolor is much renowned among the Brazilians, who apply a decoction of its bark and leaves to snake-bites and syphilitic exanthema. The Simabas of Guiana and Brazil, and the Samaderas of India, are also extremely bitter, and possess similar properties. The inner bark of Brucea antidysenterica, an Abyssinian shrub, is regarded as an admirable medicine in cases of dysentery and obstinate intermittent fevers. B. sumatrana, which grows in the Moluccas and India, possesses the same properties. Ailantus glandulosa , a native of Chinn, and naturalized in the temperate parts of Europe, is commonly called Japan varnish, a name which perpetuates an error (see Tcrebinthaceee, p. 363). [Balanites ccgyptiaca, a spinous shrub of Syria, Arabia, and North Africa, bears drupes which are acrid, bitter and purgative when young, but edible when old. Its seeds yield a fatty oil, the zachun of the Arabs. — Ed.] LVI. OCH NACE.fi , D.C. (Ochnace.e, D.C. — Planchon, Benth. et Ilook. fil.) Sepals 4--5. Petals as man y or twice as many. Stamens double or multi-pie IL number of the petals ; anthers dehiscing at the lop. Carpels 4-5 or more, united at the base by the gynobasic style, 1 -ovuled. Fruit fleshy. Albumen scanty or 0. — Stem woody. Leaves alternate, stipulate. Shrubs or trees with watery juice. Leaves alternate, stipulate, glabrous, simple, or very rarely pinnate ( Godoya ), coriaceous, shining, often toothed, margin sometimes thickened, midrib strong, the lateral nerves close, parallel. Flowers § , usually panicled, rarely axillary and solitary, or fascicled. Sepals 4-5, free, imbri- cate, very often scarious, concave and striate. Petals liypogynous, 5, rarely 3-4 or 10 ( Ochna ), free, longer than the calyx, deciduous, spreading, aestivation imbricate or contorted. Disk elongating after flowering, never annular nor glandular, often inconspicuous or 0 ; staminodes 1-3-seriate, accompanying the stamens in some genera ( Wallacea , Pcecilandra, Blastemanthus). Stamens inserted at the base or top of the torus, 4-5 or 8 or 10 or co, erect, equal or unequal, unilateral or declinate; filaments free, short, persistent ; anthers linear-elongate, basifixed, cells straight or flexuous, usually opening by terminal pores. Ovary central or excentric, short and deeply 2-10-lobed, or elongated and 2-10-celled, rarely 1-celled, with 3 parietal placentas (Wallacea); style central, gynobasic, simple, subulate, sharp, straight or curved, rarely divided in as many branches as carpels (Ochna) ; stigma 330 LYL OCHNACEJE. Ochna. Vertical section of ovary (mag.). Ochna. Fruit, showing the gynobasic style (mag.)* Oomph ia. Qomphia . Anther, with flexuons Diagram. cells (mag.). Lvn. burseracetE. 3:31 simple, terminal; ovules solitary in eacli cell ( Ochna , Gomphia, Sec.), or geminate ( Eu - themis), or numerous (Luxemburg ia, Godoya, &c.), ascending, rarely pendulous, raphe ventral, and micropyle superior. Fruit of 3-10 1 -seeded drupes, wliorled on the enlarged gynopliore (Ochna, Gomphia, &c.), or 2-4-lobed, 1-4-seeded, coriaceous, indehiscent ( Elvasia ), or fleshy with 5 nucules (E uthemis) , or a 1-celled capsule, coriaceous (Luxemburg ia), or woody, 2-5-celled, and septicidal (Godoya, Pcecilandra, Sec.). Seeds with fleshy albumen (Luxemburgia, Pcecilandra, Cespedesia, Euthemis, Sec.), or exalbuminous (Ochna, Gomphia, Elvasia, Sec.) ; testa usually membranous, sometimes -winged or margined (Luxemburgia, Pcecilandra). Embryo large, sub- cylindric, straight, or very rarely curved ( Brackenridgea ) ; cotyledons plano-convex (Ochna, Gomphia, Sec.) or linear (Luxemburgia, Pcecilandra, Sec.) ; radicle inferior or superior. PRINCIPAL GENERA. Ochnn. Gomphia. Euthemis. Luxemburgia. Godoya. Blastemanthus. Wallacea. Poecilandia. [From Bentham and Hooker’s ‘ Genera Plantarum ’ Tribe I. Ochne.e. — Ovary 2-10-celled, cells 1-ovuled. Seeds exalbuminous. Ochna, Gomphia, Brackenridgea, Elvasia, Tetramerista. Tribe II. Ei/themidea:. — Ovary incompletely 5-celled, cells 2-ovuled. Berry with 5 pyrenes. Seeds albuminous. Euthemis. Tribe III. Luxemburgie^. — Ovary excentric, 2-5- or 1-cclled, cells 00 -ovuled. Cap- sulo many-seeded. Seeds albuminous. Luxemburgia, Blastemanthus, Godoya, Cespedesia, 1 1 'allacea, Poxila ndra. — En. ] Oc/macea, which are near llutacece, Diosmeee, and Zanthuxyleee, are separated from them hy their stipulate not dotted leaves, neither annular nor glandular disk, acute gynobasic style, and never free carpels, 'they differ from Simarubete in their disk, filaments without scales, anthers opening by terminal pores, and style undivided at the base. Ochnacea are dispersed over all tropical regions ; the capsular-fruited genera are American, the drupaceous Asiatic aud South African. Ochnaceee are bitter, like Simarubeee, but their bitterness is tempered by an astringent principle. The aromatic root and the leaves of Gomphia angustifolia, an Indian tree, are employed as tonics and stomachics. The bark of G. hexasperma, a Brazilian shrub, is astringent, and very useful for the cure of ulcers caused by the stings of flies. The berries of G.jabotapita, a tree of the Antilles and Brazil, are edible, like those of the Bilberry ; its seeds are oily. LYII. BURSERACEyE,1 Kunth. [Trees or shrubs, often lofty, abounding in resinous or oily secretions. Leaves alternate, very rarely opposite, exstipulate, 3- (rarely 1-) foliolate or imparipinnate ; leaflets rarely pellucid-dotted, the lowest pair sometimes stipuliform. Flowers 5 , often small, racemed or panicled, regular. Calyx 3-5-fid or -partite, imbricate or valvate in bud. Petals 3 to 5, erect or spreading, free or rarely connate, deciduous, imbricate or valvate in bud. Disk annular or cupular, rarely obsolete, free or adnate to 1 This order is not described in the original, but is and disposition of the genera are taken from Bentham mentioned as an ally of i . Z 338 LXI. ILICINEiE. [Tlie above tribes are adopted from the ‘ Genera Plantarum ’ of Bentham and Hooker, in which work a fourth is added, often regarded as an order, but which is omitted in the original of this book, i.e. — Tribe IV. PhytocrenejE. — Flowers and fruit of Icacinece. Embryo more developed ; cotyledons broad, foliaceous or thick and fleshy. — Stem climbing. Flowers dioecious. Phyto- crene, Miquelia. Sarcostigma, Natsiatium, lodes. To this order the above authors have further appended the singular Indian and Javanese genus Cardiopteris, a slender annual climbing glabrous herb with milky juice, imbricate sepals, and gamopetalous five-lobed imbricate corolla. Stamens and ovary of Icacinece, hut two short styles with capitate stigmas, one (?) of which grows remarkably after impregnation. The one-celled superior ovary is succeeded by a broadly two-winged coriaceous white fruit with a narrow central longitudinal cell containing one pen- dulous seed with very minute embryo next the hilum, in a dense granular albumen. Of the two collateral pendulous ovules one only is impregnated; it consists of a naked nucleus, the embryo-sac of which is exserted as a very slender long tube. About 170 species of Olacinece are known, included in 36 genera ; they are dispersed over the tropical and sub-tropical regions of the whole globe, but are rare in South Africa and Australia; Pemmntia inhabits New Zealand and extra- tropical Australia. Various species of Villaresia advance into Chili. Phytocrcnecc are tropical Asiatic and African. Olacincce are so closely allied to Santalaeecc and Cornaccce that it is impossible to separate them by any natural characters; and these, together with Loranlhacecc, form one great family. Ilicinece are separated from Olacincce solely by the complete cells of their ovary, Villaresia being in this respect quite intermediate. Cornaccce differ iu their completely inferior ovary. Little is known of the properties of Olacincce. The drupes of Ximenia are eaten in Senegal, and said to he sweet and aromatic, but rough to the palate. Olax zeylanica has a fcetid wood with a saline taste, and is employed in putrid fevers; its leaves are used as salad. The stem of Phytocrene is very curious, being white and very porous, and discharging when cut a stream of limpid potable water.— Ed.] LXI. ILICINEpE. (Rhamnorum genera, Jussieu. — Aquifoliace^e, D.C. — Ilicinece, Brongniart.) Corolla sub-polypetalous or polypetalous, hypogynous, isostemonous, (estivation imbricate. Stamens inserted at the base of the petals, or on the receptacle. Ovary of many 1-ovuled cells. Ovules pendulous from the central angle of the cells. Fruit a drupe. Embryo minute, albuminous. Radicle superior.— Stem woody. Trees or shrubs with persistent or caducous leaves. Leaves alternate or opposite, simple, coriaceous, glabrous, shining, exstipulate. Flowers $ , or rarely unisexual, small, solitary, or fascicled in the axils of the leaves, on simple peduncles, sometimes branching into dichotomous cymes. Calyx 4-6-fid or -partite, persistent, with obtuse segments. Corolla inserted on the receptacle, of 5-4-3 free or nearly free petals, aestivation imbricate. Stamens 5-4-3, alternating with the petals, and cohering to their base, or on the receptacle ; filaments filiform or subulate, shorter than the petals ; anthers introrse, dorsally adnate, dehiscence longitudinal. Ovary free, fleshy, sub-globose, 2-C-8-celled ; stigma subsessile, lobed ; ovides solitary in each cell, pendulous from the top of the central angle, anatropous. Drupe fleshy, Holly. Holly. Fruit. Transverse section of fruit (mag.). Holly. Vertical section of fruit (mag.). Holly. Seed cut vertically (mag.). Holly Pistil (mag.) of 2-8-ao woody or bony one-seeded indeliiscent pyrenes. Seed inverted ; testa membranous, raphe dorsal ; liilum turned towards the top of the cell, naked, or capped 839 Holly. Flower with abortive stamens (mag.). LXI. ILICINE^]. Holly. Vertical section of flower (mag.). nolly. (flex aqui/olium.) Holly. Flower with abortive pistil, cut vertically (mag.). 340 LXII. EMPETREiE. by the funicle dilated into a cupule; albumen fleshy, copious. Embryo straight, minute, at the top of the albumen, suh-cylindric or globular ; radicle near the hilum, superior. GENERA. Cassine. Ilex. Piinos. Byronia. Nemopanthes. Ilicinece were for a long time placed in the family of Celastrinea, which approach them in their per- sistent calyx, hypogynism, isostemony, festivation of their corolla, their many-celled ovary, anatropous ovule, sessile or subsessile stigma, sometimes drupaceous fruit ( Elceodenclron ), straight albuminous embryo, woody stem, alternate leaves, and axillary small and greenish flowers; but Celastrinece differ in the fleshy disk which lines the bottom of the calyx and often the base of the ovary, in the erect or as- cending ovule, and finally in their corolla, which is clearly polypetalous. We shall indicate the affinity of Ilicinece with Ebenacece under that family. They have also a connection with Olacinece, founded on the hypogynous corolla, pendulous and anatropous ovule, fleshy fruit, albuminous seed, and woody stem ; but Olacinece have an anisostemonous corolla with valvate aestivation, and their embryo is axile, and not apical.1 Ilicinece are rare in Europe ; they are more numerous in Asia, South and Central America, and at the Cape of Good Hope. Ilicinece contain a bitter principle, the ilicine of chemists, combined in various proportions with an aromatic resin and a glutinous matter, to which some species of Holly owe medicinal properties. Ilicine has been proposed as a substitute for quinine. An infusion of the leaves of Ilex vomitoria is diuretic and diaphoretic ; in large doses it produces vomiting, and is the usual emetic of the savages of South America. Ilex Parciguayensis yields male, which takes the place of tea in South America. The bark of Prinos verticillata is astringent, and is used in tbe United States as a tonic and antiseptic. Many kinds of Holly are cultivated in Europe as ornamental plants (/. Dahoun, balearica, mnclerensis, latifolia, &c.) ; but the most interesting species is the common Holly ( Ilex aqtnfolium), which grows in the hilly forests of western Europe, and the spiny and persistent leaves of which were formerly used as a febrifuge. The berries are of a brilliant red, and with the shining green leaves greatly contribute to the beauty of our winter bouquets. The bark yields bird-lime, used by birdcatchers, and formerly employed topically to reduce tumours. Holly-wood is close and hard, and much esteemed for cabinet-work. LXII. EMPETREJE, Nuttall. Low heath-like dry erect or prostate much-branched shrubs, branches cylin- dric. Leaves alternate, sometimes sub-whorled, coriaceous, entire, exstipulate. Flowers small, regular, usually dioecious, rarely polygamous, sessile in the axils of the upper leaves, solitary ( Empetrum ), or few together ( Ceratiola ), rarely crowded at the top of the branches ( Corema ), naked, or furnished with scaly imbricate bracts. Calyx 3-2-phyllous ; leaflets imbricate in aestivation, coriaceous or membranous, and like the bracteoles. Petals hypogynous, shortly clawed, persistent, marcescent. Stamens (rudimentary or 0 in the ? ) inserted with the petals, equal and alternate with them ; filaments filiform, free, persisting after the fall of the anthers ; anthers extrorse, sub-globose, didymous or oblong, dehiscence longitudinal. Ovary (rudi- mentary in the $ ) seated on a fleshy sub-globose disk, 2-3-6-9-celled, cells 1-ovuled ; style short, angular, or obsolete ; stigma lobed, radiating, lobes truncate, lacinia-te or 1 Various Olacinece have isostemonous imbricate corollas the habit of Hex, and stamens cohering to the base and apical embryos, notably Villaresia, which has further of the connate petals. — Ed. LXII. EMPETREiE. 341 incised ; ovules ascending from the base of the central angle, anatiopons. Dlupe fleshy, spherical, sub-depressed, umbilicate, of 2-3-G-9 connate or distinct bony 1- Ernpctrum nigrum. Empetrum. Diagram. Empetrum. 9 flower cut vertically (mag.). Empetrum. $ flower : stamens cut (mag.). Empetrum. Stamen (mag.). Empetrum. Portion of stigma laid open (mag.). Empetrum. Pistil (mag.). Empetrum. Pyrene, entire and cut (mag.). Empetrum. Seed, entire and cut (mag.). Empetrum. Fruit, entire and cut vertically (mag.). seeded pyrenes. Seeds triangular, erect ; testa membranous; albumen fleshy, dense. Embryo straight, axile, cylindrie ; cotyledons short, obtuse ; radicle near the hilum, inferior. GENERA. Empetrum. Corema. Ceratiola. The little family of Empetrece approaches Celastrinece, Ilicineee, and especially Ericinece properly so called. It has the habit of the latter, their marcescent hypogynous corolla, several-celled ovary with anatropous ovules, albuminous seed and straight embryo, and it also recalls the tribe of llhodoracece by the structure of the stigma ; but Ericinece are gamopetalous and gamosepalous, their flower is perfect, and their fruit is a capsule or berry. The affinity with Hicivece is not doubtful ; in botli families we find 342 LXIII. CELASTRINEiE. diclinism, hypocorollism, isostemony, imbricate {estivation, several-celled and 1-ovuled ovary, auatropous ovules, very short style, drupaceous fruit, flesby albumen, woody stem, alternate leaves, and axillary flowers. Celastrineee have, like Empctrece, small axillary flowers, polypetalous and isostemonous imbricate corollas, a fleshy disk, an ovary with several 1-ovuled cells, ascending and anatropous ovules, a sub-sessile lobed stigma, drupaceous fruit, albuminous seed, and straight and axile embryo. Celastrinecp, chiefly differ in habit, stipu- late leaves, perigynism, introrse anthers, often 2-ovuled ovarian cells, and the fleshy aril of the seed. The few species of this family are dispersed over the Iberian peninsula, Central Alpine and North Europe, North America, and the Magellanic region. The leaves and drupes are acidulous; the fruits of Empetmm nigrum, are eaten in the North of Europe for their antiscorbutic and diuretic properties. The Greenlanders ferment them, and obtain a spirituous liquor. From the drupes of Corema an acid drink is prepared in Portugal, and employed as a febrifuge in popular medicine. LXIII. CELASTRINEeE. (Rhamnorum sedio, Jussieu. — Celastrineee, Br. — CelastracEe®, Lindl.) Euonymus. Vertical section ot flower (mag.). Euonymus. Diagram. Euonymus. Seed cut transversely (mag.). LXI 11. CELASTRINEyE. 343 • F.uonymus. Seed with its aril (mag.). E. latifolius. Pendulous ovules (mag.). E. linifoUus. Upright ovules (mag.). Corolla polypetalous, perigynous, isostemonous, (estivation imbricate. Petals l 5, inserted on a fleshy disk, surrounding tin1 ovary and occupying the bottom of the calyx. Stamens 4-5, inserted like the petals. Ovary 2-3-5 -celled, cells 1-2 -ovuled. Ovr lkr ascending or erect, anatropous. Fruit dry or fleshy. Seeds usually arillate, albuminous. — Stem woody. Leaves simple, stipulate. Small trees or shrubs, often climbing. Leaves alternate, or rarely opposite, simple, entire or toothed, often coriaceous ; stipules small, very caducous. Flowers 5 , or unisexual, regular, axillary, cymose, small, greenish or reddish. Calyx 4-5-fid or -partite, segments equal, imbricate in aestivation, persistent. Disk fleshy, annular or orbicular, lining the bottom of the calyx, and sometimes adnate to the ovary. Petals 4-5, alternate with the sepals, inserted under the edge of the disk by a broad base, sessile, imbricate in aestivation, deciduous. Stamens 4-5, inserted under, on, or within the edge of the disk; filaments short; anthers in- trorse, erect, fixed by the base or back, connective often dilated, dehiscence longi- tudinal. Ovary sessile, more or less buried in the disk, and sometimes adhering to it by its base, of 2-3-5 1-2-many-ovuled cells; style short, thick ; stigma of 2-3-5 lobes ; ovuh s usually 2, collateral, erect or ascending, with a ventral raphe, some- times pendulous, and then with a dorsal raphe (rarely many-2-seriate). Fruit 2-5- celled, sometimes an indeliiscent drupe or samara with 1-seeded cells, sometimes a loculicidal capsule with semi-septiferous valves. Seeds erect or ascending, usually furnished with a pulpy coloured sometimes very much developed and cupular aril ; testa crustaceous or membranous, traversed by a longitudinal raphe. Embryo straight, occupying the axis of a fleshy copious albumen ; cotyledons foliaceous, flat ; radicle cylindric, inferior. [Disposition of the tribes and genera of Celastrineoe in the £ Genera Plantarum,’ including Hippocrateacece, which are omitted in the original of this work : — Tribk I. Cklastrka. — Stamens 4—5, very rarely 10, inserted (except Schafl'eria ) on or beneath the margin of a conspicuous disk. Filaments subulate, often incurved. Seeds albuminous (exalbuminons in llartogia , Kokoona, and some species of Maytenus) . Euonymus, Mr ‘f. r M yt - IP, i I minor, Catha, Lopliopetalum, Gymnosporia, Perrottetia, Kokoona, llartogia, Kurrtmia, Cassine, C'elastrus, Myginda. Tkibb II. Hippocbatii i (order Hippocrateacece, Endl., Lindl.). — Stamens 3, rarely 2, 4, or 8, inserted on the face of the disk ; filaments flattened, recurved, sometimes adnate to the disk ; anthers extrorse from the reflexion of the filaments. Seeds exalbuminous. — Leaves usually poposite. Ilippocratia, Salacia. — Ed.] 344 LXIY. STAPHYLEACEiE. I or the affinities of Celastrinece with ilicinecc , Pittosporece, and Staphyleacea ?, see these families. Their affinity with Jthamnea is, very close, and Jussieu placed them in the same family; it is founded on the woody stem, stipulate leaves, axillary small and greenish flowers, fleshy disk lining the calyx and often adhering to the ovary, isostemonous and perigynous corolla, 1-2-ovuled cells of the ovary, upright and anatropous ovules, fleshy or capsular fruit, the often arillate seeds, and the albuminous embryo; but in Ehamneee the aestivation is valyate, the stamens are opposite to the petals, and the fruit, if a capsule, usually divides into cocci. The two families inhabit the same country. Euonymus inhabits the temperate legions of the northern hemisphere ; Celastrus and the other genera are, with few exceptions, tropical and sub-tropical, and dispersed over Asia, America, the Pacific islands, Australia, and South Africa. Jlippo- cratiece are also pretty equally distributed through Asia, Africa, and America. Celastrinece usually possess purgative and emetic properties, but are not used in European practice ; the bark of Celastrus is used as an emetic in South America. The root and leaves of Myginda are esteemed as diuretics in tropical America. Catha edulis is an East African shrub, called Khat , cultivated by the Arabs, with whom it is an article of commerce; the bruised leaves produce an agreeable excitement, analogous, it is said, to that induced in Peru by the use of coca ; it is also lauded by them as a sovereign remedy for the plague. [In India the bark of Euonymus tinyens is used to dye a yellow colour, with which the Hindoos make the sacred mark on the forehead ; it is also used in eye complaints The bark of E. Roxlurghii is an astringent, used to reduce swellings in India. The seeds of the European Euonymi are nauseous and purgative, and said to poison sheep ; an ointment made of them was formerly used to kill lice in the head. The spines of Celastrus veneratus are said to inflict a poisoned wound. The drupes of Elceodendron Kuba are eaten in South Africa by the colonists. The seeds of Celastrus nutans and paniculatus are acrid and stimulant, and U3ed as a medicine in India. . Ot the Ilippocrateaccce the fruit of Salacia pyriformis, a native of West Africans eatable, as are the nuts of Hippocratia coniosa, the ‘ Amandier du Bois ’ of the French West Indies. The fruits of others are mucilaginous and edible. — Ed.] LXIY. STAPHYLEACEA } (Celastrinearum tribus, D.C. — Staphyleacea:, Bartling.) Corolla polyjietalous, sub-hypogynous, isostemonous, (estivation imbricate. Petals 5, inserted on a hypogynous disk. Stamens 5, inserted with the petals. Ovary" 2-3- lobed. Ovules anatropous. Fruit dry or fleshy . Embryo albuminous. — Stem woody. Leaves compound, bistipulate. Trees or erect shrubs. Leaves generally opposite, 3-foliolate, or impari- pinnate ; leaflets opposite, petiolulate ; stipules twin, at the base of the petioles, deciduous. Flowers g or imperfect, regular, racemed or panicled, pedicels brac- teate at the base. Calyx free, coloured, 5-partite, aestivation imbricate. Petals inserted on or beneath a hypogynous disk, crenulated, aestivation imbricate, deciduous. Stamens 5, inserted like the petals ; filaments subulate, free, equal ; anthers introrse, opening longitudinally. Carpels 2-3, united at the base, or throughout their length, into a 2-3-celled and -lobed ovary ; styles equal in number to the lobes of the ovary, distinct or cohering, finally free ; stigma undivided; ovules many, inserted along the ventral suture, 1-2-seriate, horizontal or ascending, ana- tropous. Fruit a membranous turgid capsule, its lobes opening at the top by the ventral suture ; or a berry, 3-celled, or 2-celled by suppression. Seeds few or solitary 1 See Sapindacce, Sub-order V., p. 353. LXIY. STAPHYLEACEiE. 345 Staphylea pinna fa. n Staph y lea. Flower (mag.). (mag.). Staphylea. Diagram. Staphylea. Seed (mag.). Staphylea. Fruit. Staphylea. Seed cut parallel to the cotyledons. Staphylea. Pistil (mag.). Staphylea. Seed cut perpendicularly to the cotyledons. Staphylea. Seed cut transversely. in each cell, g'lobose, truncate at the base ; testa bon}', shining. Embryo stiaight, in a fleshy scanty albumen, reduced to a thin layer when ripe ; coty- ledons thick, fleshy, plano- convex ; radicle short, inferior or centrifugal. PRINCIPAL GENERA. Euscaphis. Staphylea. Turpinia. Ntaphyleucetf, joined by De Candolle to Celastrinea, are connected with them by the polypetalous isostemonous corolla, imbricate aestivation, fleshy disk on which the petals and stamens are inserted, as- cendin'. and nuatropous ovules, woody stem and stipulate leaves ; but Celastrinea have simple and alternate leaves, usually nrillate seeds, and a copious albumen. A still more legitimate affinity links Staphyleacea with Sapindtneee and Acerineee ; for in the latter the petals are imbricate, and inserted, like the stamens, on a fleshy hypogynous disk, the ovary is two-lobed and of two carpels, the fruit is a capsule, the seeds are ascending, and scarcely or not albuminous, the stem is woody, and leaves opposite. There is the same relationship with Snpindaccee , in many genera of which the leaves are stipulate, though not opposite. 346 LXY. STACKHOUSIEiE. These two families are scarcely separated from Staphyleacece except by the diplostemonous corolla and curved embryo ; and they are united in the ‘ Genera Plantarum ’ as tribes of Siqrindacece. It is the same in Ilippocastanece (see this family). The few species of this little family are scattered over temperate Europe, North America, the Antilles, Mexico, Japan, and tropical Asia. Their useful properties are little known. The root of a Japan shrub (Euscaphis) is employed as an astringent in dysentery. [The seeds of Staphylea are oily, austere, and slightly purgative. — Ed.] LXV. S T A CK HO US I EsE. 1 [Small herbs with watery juice, usually woody, simple or branched, rootstocks giving off many erect simple or sparingly divided slender leafy branches. Leaves scattered, alternate, rather fleshy or coriaceous, linear or spathulate, quite entire ; stipules 0 or very minute. Flowers $ , regular, in terminal spikes or racemes at the ends of the branches, or fascicled, 3-bracteate, white or yellow. Calyx small, hemispheric, 5-lobed or -partite, lobes rather unequal, imbricate in bud. Petals 5, perigynous, inserted on the throat of the calyx, linear or spathulate ; claws long, free or connate ; limb reflexed, imbricate in bud. Disk thin, clothing the base of the calyx-tube. Stamens 5, inserted on the edge of the disk, erect, included; filaments slender, the alternate shorter; anthers oblong, dehiscing longitudinally; pollen obscurely 4-lobed, rough. Ovary sessile, free, sub-globose, 2-5-lobed or -partite, 2-5-celled ; styles 2-5, free or connate ; stiyma 5-lobed or stigmas 5, capitate ; ovule solitary in each cell, erect from its base, anatropous, raphe ventral. Fruit of 2-5 globose or angular smooth or reticulate or winged indehiscent 1 -seeded cocci, which separate from a central persistent column. Seed erect; testa membranous; albumen fleshy. Embryo axile, straight, as long as the albumen ; cotyledons short, obtuse ; radicle inferior. ONLY GENUS. Stackliousia. A small aud geographically limited order, embracing some twenty species, common in extra-tropical Australia, with a solitary representative in New Zealand, and another that wanders north to the Philippine Islands. It appears to agree most nearly with Cclastrinece in technical characters, but its affinities are quite unknown. In the disk and fruit it approaches Ehamntce. Robert Brown indicated an affinity with Eupliorbiacece , but on what grounds is not stated, nor have these been apparent to succeeding botanists. Nothing is known of its uses. — Ed.] LX VI. RHAMNEAE. (Rhamnorum yenera, Jussieu. — Rhamneai, Br. — Frangulacea:, D.C. — Rhamnacea:, Lindl.) Corolla polypetalous, perigynous, isostemonous, aestivation valvate. Petals 4-5, inserted on a perigynous dish, lining the calyx, and sometimes the ovary also. Stamens 4-5, opposite to and inserted with the petals. Ovary free, or adnate to the disk, of 1 This order is omitted in the original. — Ed. LX VI. RHAMNEiE. 347 2—3 — 1-2 -ovulecl cells. Ovules erect, anatropous. Fruit a drupe or capsule. Embryo large, albumen scanty. — Stem woody. Leaves simple, 2- stipulate . Buckthorn. ( Rhamnus Frangula.) R. Frangula. Transverse section of a seed with plane cotyledons (mag.). Rhamnus. seed with lateral Seed. raphe (mag.). R. utilis. Section of a seed with dorsal raphe and bent cotyledons (mag.). Trees, shrubs, or undershrubs, brandies sometimes spinescent, sometimes climbing by their extremity, which is bare of leaves ( Gouania ). Leaves simple, usually alternate, rarely sub-opposite or opposite, entire or toothed, petioled, some- times minute or suppressed ( Colletia ) ; stipules small or 0, sometimes transformed into thorns. Flowers § or unisexual, regular, small, greenish, usually axillary, solitary, or variously fascicled. Calyx 5-fid or -partite, aestivation valvate. Disk adnate to the calyx, and lining it with a single or double layer, of various form. Petals 4—5, usually inserted at the edge of the disk, aestivation induplicate-valvate, rarely 0 ( Colletia . Pomaderris). Stamens 4-5, opposite to and inserted with the petals; filaments sometimes adnate to the base of the petals, but not connate; anthers introrse, dorsifixed, versatile, sometimes ovoid, with longitudinal dehiscence, sometimes reniform and 1 -celled by confluence of the cells at the top, and opening 348 LXYI. RHAMNEiE. into 2 valves by an arclied slit. Ovary free, or buried in the disk, or more or less adnate to the calyx-tube, of 3-2-4 1-2-ovuled cells ; styles equal in number to the cells, more or less connate ; stigmas simple, distinct or connate ; ovules usually solitary in each cell, erect, sessile or funicled, anatropous. Fruit superior or inferior, rarely 1 -celled by suppression, sometimes an indehiscent fleshy spongy or membranous drupe, sometimes winged, with a hard fibrous or woody 2-3-celled endocarp, sometimes a capsule with 2-3 c-rustaceous cocci separating at the top, pendulous from the axis, and opening when ripe at the base of their inner edge. Seeds erect ; testa loose, raphe lateral or dorsal, clialaza thick ; albumen fleshy, scanty. Embryo large, straight, yellow or green ; cotyledons flat, fleshy ; radicle short, inferior. PRINCIPAL GENERA. Paliurus. Zizyphus. Hovenia. Rhamnus. Ceanothus. Phylica. Fomaderris. [Conspectus of the tribes and genera, from the ‘ Genera Plantarum ’ of Bentham and Hooker fil. : — Tribe I. Ventilagine.®.— Ovary superior or semi-superior. Disk filling the calyx-tube. Fruit dry, 1-celled, 1-seeded, girt at the base or up to the middle by the calyx-tube. Seeds exalbuminous. — Unarmed climbing shrubs. Leaves alternate. Ventilago, Smythea. Tribe II. Zizyphe®. — Ovary superior or semi-superior. Disk filling the calyx-tube. Drupe dry or fleshy, girt at the base or up to the middle by the calyx-tube ; endocarp 1-3- celled. Valiums, Condalea , Beschemia , Zizyphus, Sarcomphalus, Karwinslcia, Microrhamnus. Tribe III. Rhamne®. — Ovary inferior or superior. Disk various or 0. Fruit dry or drupaceous, containing 3-4 cocci or pyrenes. Bhamnus, Geanotlius, Colubrina, Try malium, Ilovenia, Scutia, Phylica, Spyridium, Sageretia, Alphitonia, Cryptandra, Pomaderris. Tribe IV. Colletie®. — Ovary free or semi-superior. Calyx-tube deep, produced much beyond the disk. Stamens inserted on its mouth. Fruit coriaceous, of 2-3 cocci or a 1—3- celled drupe. — Trees or shrubs, often spinescent. Leaves opposite or small or 0. Colletia, Discaria, Betanilla, Trevoa, Tulguenea. Tribe Y. Gouanie®. — Ovary inferior. Disk various. Fruit coriaceous, containing 3 cocci, usually 3-gonous or 3-alate. — Shrubs. Leaves alternate, often broad. Crumenaria, Gouania, Helinus, Eeissekia. — Ed.] The affinities of Bhamnca with Celastrine.ee and Ampelidece will he found under these families. Those with Araliacece are the same as with Ampelidece. They also approach Ekeagnece in the valvate calyx, stamens inserted alternately with the sepals (at least in the isostemonous flowers) on a perigynous disk, the erect anatropous ovule, albuminous straight axile embryo, woody stem, usually alternate leaves, and axillary flowers. But Ekeagnece are apetalous (which is also the case with some Bhamnem), their ovary is one-celled and -ovuled, their leaves are covered with scales, and are exstipulate. The same aualogies and differences are observable between Bhctmnece and Proteacece, and the latter also differ in the entire absence of albumen. Bhamnem inhabit the moderately hot regions of all countries of both hemispheres; they are not rare in the torrid zone, but are never met with in glacial regions. [ Colleliece , so remarkable for their leafless branches with cruciate spines, are wholly South American, New Zealand, and Australian. Of all the genera in this family, the most useful to man are Iihamtms and Zizyphus. Bhamnus cathar- tieus bears berries which contain a bitter principle, much used in the form of a purgative syrup. I he fruits of many allied species (especially B. infeatorius ) yield a yellow or green colour, and as dyes are the objects of a considerable commerce. B. utilis and chlorophovus produce Chinese green. The bark of B. catharticus is LXYII. AMPELIDE-ffi. 349 also used for dyeing yellow, like that of R. Frangula, a common shrub throughout temperate Europe, the tender and porous wood of which yields a very light charcoal, which is used, like that of Euonymus, in the manufacture of gunpowder. The Zgziphi contain in every part astringent and bitter principles ; but in the fruit this bitterness is corrected by a quantity of sugar and mucilage which render them edible. / ndgaris, a native of Syria, was imported into Italy towards the first century of our era, and has long been naturalized in the south of France; its drupe is used as an emollient and laxative. The Z. Lotus, the Nabk of the Arabs, is very abundant along the African shore of the Mediterranean ; its pulpy and agreeable fruit was very celebrated among the ancients, and is still eaten. [The succulent peduncles of Horatio elatus are much eaten in China as a fruit. The Qitiiut of Brazil is the acrid root of Discaria febrifitga. The bitter bark of Colubrina is said to bring on violent fermentation. The Chinese employ the leaves of Sage ref ia therezans ns a kind of tea. — Ed.] LX VI I. AMPELIDEsE. (Vites, Jussieu. — Sarmentacea:, Ventenat. — AmpelideyE, Kunth. — VitacEyE, Lindl.) Corolla polypetalous or sub-polypetalous, isostem, onous, aestivation valvate. Petals 1—5, inserted outside a disk lining the calyx, and surrounding thebase of the ovary. Stamens Vine. (YMt tiniftru.) Vine. Diagram. Vine. Fruit. Vine. Transverse section of seed, showing the ruminate albumen (mag.). Flower without corolla (mag.). Vine. Seed, entire and cut vertically (mag.). 350 LXYII. AMPELIDE2E. 4-5, opposite to and inserted ivith the petals. Ovary free, of 2-3-6 1-2 -ovuled cells. Ovules erect, anatropous. Berries 2-3 -6-celled. Embryo albuminous. Radicle inferior. — Stem woody. Trees or sarmentose shrubs, usually climbing, stem and branches nodose. Leaves petioled, simple, palmate, digitate or imparipinnate, the lower opposite, the upper alternate, opposite to the peduncles which are often changed into branching- tendrils ; stipules petiolar, sometimes 0. Flowers $ or unisexual, usually small, greenish, in racemes, panicles or thyrsi. Calyx small, 4-5-toothed or entire, clothed with a disk. Petals 4-5, inserted on the outer base of the disk, coherent at the top, sometimes connate at the base ( Leea ), aestivation valvate. Stamens 4-5, opposite to the petals, and inserted with them, or fixed to the dorsal face of a sub- globose 5-lobed cup, adnate to the base of the corolla (Leea) ; filaments short, dis- tinct or sub-monadelphous at the base (Leea) ; anthers introrse, dehiscence longi- tudinal. Ovary free, of 2 2-ovuled cells, or of 3-6 1-ovuled cells (Leea) ; style short or 0 ; stigma capitate or peltate ; ovules anatropous when solitary, erect when 2, collateral and ascending. Berry 2-3-6-celled. Seeds erect, testa bony, endopleura often rugose, or folded within. Embryo short, at the base of a cartilaginous often ruminate albumen ; radicle inferior. GENERA. Cissus. Ampelopsis. Yitis. Leea. Pterisanthes. The genus Pterisanthes, which inhabits the Indian Archipelago, has a peculiar inflorescence, which deserves to be mentioned : the flowers are unisexual, and inserted on a large flattened membranous re- ceptacle : the $ are marginal and pedicelled ; the !j> sessile on the disk. The affinities of Ampelidece are rather obscure. They approach Aratiacece, and especially the Ivy, by their climbing stem, palmately lobed leaves, valvate aestivation of the petals, dorsifixed incumbent anthers, berried fruit, and; small embryo with often ruminate albumen. The most important differ- ence is in the position of the stamens, which in Aratiacece are alternate with the petals ; the epigyny and the inverted ovule, which also distinguish these latter from Ampelidece, are perhaps of less importance. llhanmea: also are connected with Ampelidece by the woody stem, often climbing by tendrils, the alternate or opposite stipulate leaves, the valvate isostemonous petals inserted on a perigynous disk, the stamens opposite to the petals, the ovary often buried in the disk, its 1- 2-ovuled cells, and the erect ovules. They scarcely differ except in their penninerved leaves and in the albumen being scanty or 0. Finally, some distant relations have been observed between Ampelidece and Meliacece, almost entirely founded on the monadelphous stamens of the genera Melia and Leea. Ampelidece abound in the tropics, but are much rarer in the temperate zones. None are found wild in Europe. The Vitis vinifera is apparently a native of Georgia and Mingrelia ; it is now cultivated in all countries of which the mean summer temperature is not below 66° Fahr. ; where the temperature is lower, the saccharine principle does not develop, and the grapes remain sour. The Vine, if cultivated in the tropics, grows rapidly, but the grapes wither before ripening. The V. vinifera is almost the only species of the family useful to man ; the berries of the allied species which grow in the North American forests are acid and little sought.1 ’ The Vitis Lahrusca of the United States is much used in making wine, and is the origin of the Isabella Grape. V. cestivalis, of the same country, is also pleasant and edible, as are the berries of various Indian species. The Sultana Raisin is the seedless fruit of a variety of the common Grape cultivated in the Levant; and the Currant or Corinth Grape of commerce is the fruit of another, cultivated in the Ionian Islands. All parts of Cissus cordata and setosa are acrid, and applied in India to indolent tumours. The leaves and fruit of C. tinctnna abound in a green colouring matter, which soon turns blue, and is used to dye cotton fabrics in Brazil. V. latifolia and others are famous in India for their real or supposed properties in indolent ulcers and toothache, and as detergents and purifiers of the blood. — En. LXVIIJ. SAPINDACEiE. 351 Cix*u# grows in the tropics ; its berries nre refreshing, and the young leaves of some species, when cooked, serve for food. LXVIII. SAPINDACEIE, Jussieu. Corolla either 0, or composed of 5-4 petals, imbricate, inserted outside a glandular < regular. Stamens inserted outside the disk at its base. Seeds albuminous. Embryo straight. Leaves opposite. See order Staphyleaceoe , p. 34 k— Ed.] This family is very closely allied to Acerinece aud Malpighiaeece, as well as to Jlippoca stances and Staphglem ece (see these families). It has equally an affinity with Meliunthece , which only differ in their albuminous seed. Through Stapliylencece it is also connected with Celastrinece ; but is distinguished from them by its generally compound leaves, often irregular flowers, rarely isostemonous petals, stamens in- serted within the disk,1 calyx with free sepals, and generally curved embryo. Supindncecp abound in tropical regions, especially in America ; they are rare beyond the tropic of Capricorn, and have not yet been observed north of the tropics, except in the North of China aud in India (Xmithorerasi) ; Podoncen abounds in Australia. Sapuidacece possess very various properties. Many contain astringent and bitter principles, sometimes 1 They are inserted outside the disk in Dudmuea and 2 Koelreuteria, Slocksia, Ungnadia, Cardiospermum, other undoubted Sapindaccce. — Ed. and Sapindus offer other exceptions. A A 854 LXIX. ACERINEjE. combined with a resinous matter and a certain quantity of volatile oil. The berries of several species and the aril of others have an agreeable taste, owing to the mucilage, sugar, and free acids which they con- tain ; while others possess narcotic principles which render them eminently poisonous. The seeds of most yield a fixed oil by expression. The barli, root, and pulp of the fruit of the Soap Tree ( Snpindus Saponariu) are regarded as tonics; besides which, this pulp, like that of its Asiatic congeners, froths with hot water like soap, and is used in washing, being said to cleanse more linen than sixty times its weight of soap. The berries of 8. seneyalensis are sought by the negros for their sugary and vinous taste. The succulent and well-tasted aril of Melicocca serves as food in Asia and America, as well as that of the Akee ( Blighia or Cupania sapicla), an African plant cultivated over the tropics of both worlds. The fruit, cooked with sugar and cinnamon, is taken for dysentery, and when roasted is applied to indolent tumours. The species of the genus Nephelium rank high among Asiatic fruits; N. Litchi (Litchi), N. Longanum (Lougan), N. lappaceum (Rambutan), and their congeners, are cultivated for their excellent fruits, which are used in inflammatory and bilious fevers. Tbe Serjanicc and the Paulliniee, Americau genera, are poisonous ; the Brazilians use their juice to stupefy fish ; and it is from the flower of Serjania lethalis that the Lecheu- quana bee collects a narcotic-acrid honey, of which a small quantity produces raving madness, and even death. The juice of Paullinia Cururu is used by the savages of Guiana to poison their arrows ; the negro slaves prepare a poison with the root and seeds of P. pinnata ; tbe expressed juice of its leaves furnishes the Brazilian Indians with a powerful vulnerary. The seed of P. sorbilis is bitter and astringent ; the Brazilians powder it, and make it into a paste called gunrana bread, which they roll into little balls or cylinders; on their journeys they dilute this dried paste with sugared water, when it forms a refreshing and febrifuge drink. [It owes its properties to a principle, guaranene , identical with theine. — Ed.] Cardio- spermum Ilalicacabum, a herb growing throughout the tropics, produces a mucous nauseous root to which aperient and lithontriptic virtues are attributed, [but its leaves are cooked as a vegetable in the Moluccas. — Ed.]. Doduncea owes its scent to a resinous principle which exudes from its leaves and capsules; the leaves of J). viscosa are used for baths and fomentations ; its seeds are edible. [The Pambeh and Choopa of Malacca, species of Pierardia, and the Tampui ( Hedgcarpus malayanus ) yield esculent drupes ; these genera, hitherto regarded as Euphorbiaceous, have recently been referred to Sapindncece. The seeds of the wild Prune of South Africa ( Pappea ) abound in oil. Many produce most valuable timber, and the structure of the wood of many climbing species is most remarkable. The African Teak ( Oldfieldia africand), doubtfully placed in Euphorbiacece, is referred to Sapindaccce by T. Mueller. The ■wood of Pleroxylon utile , of South Africa, is hard, and as handsome as Mahogany' ; its sawdust causes sneezing, whence the Cape names of Neisliout and Sneezewood. Hippodromus (data, of the same country, also yields a valuable timber. — Ed.] LXIX. ACERINEEE } (Acera, Jussieu.— Acerinea;, D.C. — Aceracea:, Lindl.) Petals 4-5, hypogynous, imbricate, sometimes 0. Stamens equal or more in number than the petals. Ovary 2 -lobed, of two 2-ovuled cells ; style central. Ovules pendulous, curved. Fruit a samara. Embryo ex albuminous j cotyledons folded or con- volute j radicle descending. — Stem woody. Leaves opposite. Trees with sugary, usually limpid, but sometimes milky juice ; buds scaly. Leaves opposite, petiolate, usually simple, palmi-nerved and -lobed, rarely entire or imparipinnate, leaflets petiolulate ; stipules 0. Flowers ? , or often polygamo- dioecious, regular, in a simple or compound raceme or corymb, axillary or terminal ; pedicels with a caducous bract. Calyx 4-5- (rarely 6-8-) partite, segments often 1 See Sapindaeea , Suborder III., p. 353. — Ed. LXIX. ACEKINEiE. 355 coloured, imbricate, deciduous. Petals 4-5 or 0, often sepaloid, inserted on the edge of a free disk surrounding the base of the ovary, shortly clawed, aestivation imbricate. Stamens inserted with the petals, equal or more numerous, 4-12, oftener Maple. Maple. Maple. Acer N eg undo. Se«d entire and cut (mag.)* Diagram. YouDg pistil (mag.). <£ flower. 8; filaments filiform, free, sometimes very shox-t; anthers 2-celled, introrse, oblong, basifixed or versatile, dehiscence longitudinal. Ovary free, sessile, 2-celled, 2-lobed, ( ..ill]']-. -'.. .] perpendicularly to the septum; style central, sub-basilar ; stigma bifid; ovules 2 in the central angle of each cell, superimposed or collateral, pendulous, campy lotropous. Fruit of 2 samai-as or 1- (rarely 2-) seeded cocci, prolonged into a dorsal coriaceous or membranous wixxg, l’eticulate, and remaining suspended to a carpophore, as in Umbelliferce. Seeds ascending ; testa membranous ; endopleura A A 2 856 LXX. HIPPOCASTANEiE. fleshy. Embryo exalbuminous ; cotyledons foliaceous, green, accuinbent, irregularly folded or convolute ; radicle descending, facing tlie hilum. GENERA. Acer. Negundo. Dobinea. Acerinece, regarded by Bentbam and Hooker fil. as a sub-order of Sapindacece (see p. 353), only differ from these in their always opposite leaves and non-appendiculate petals, and in their occasionally trimerous fruit (Acer pseudo- Plo.tanus) , as in most Sapindacece. Ilippocastanece only differ from Acerinece in their capsule with semi-septiferous valves ; and are further allied, since in both orders the buds bear both leaves and flowers. For the affinity with Malpighiacece see p. 301. Acerinece inhabit northern temperate regions, and especially Japan, the Himalayas, and eastern North America. The curious genus Dobinea, which is placed in Acerinece, is Himalayan ; [it has apetalous $ flowers without a disk, and a one-celled ovary, which ripens into a small broadly-winged achene. — Ed.]. Acerinece contain a sugary sap, milky in some, limpid in others, which is obtained by incision of the trunk, and is either evaporated for sugar (the Maple Sugar of Canada), or allowed to ferment aud thus form spirituous or acid liquors. Their bark is astringent, and yields reddish or yellow colouring principles. [The wood of various species is of great value, especially the Bird’s-eye Maple of America. — Ed.] LXX. 11 TP PC) C A S T A NE EE, 1 Endlicher. Large or small trees with scaly buds. Leaves opposite [alternate in TJngnadia. — El).], generally digitate, rarely imparipinnate, with toothed or crenate leaflets ; stipules 0. Flowers $ or polygamous, in racemes or terminal thyrsi. Calyx campanulate or tubular, 5-fid, lobes unequal, imbricate. Petals 4 5, inserted on the receptacle, unequal, clawed, not appendiculate, imbricate. Disk hypogynous, entire, annular or unilateral. Stamens 5 8, usually 7, inserted within the disk, and free ; filaments filiform, exserted, ascending ; anthers 2-celled, dehiscence longitudinal. Ovary sessile, oblong or lanceolate, of 3 2-ovuled cells ; style conical or filiform ; stigma pointed ; ovules curved, fixed to the central angle of the cell, superimposed or horizontal, or one ascending, the other pendulous. Capsule coria- ceous, naked or spinous, 3-celled or 2-1 -celled by suppression, loculicidal, valves semi-septiferous. Seeds usually solitary in each cell ; testa coriaceous, shining ; hilum basilar, large. Embryo exalbuminous, curved ; cotyledons large, thick, fleshy, often more or less confluent; radicle short, near the hilum. PRINCIPAL GENERA. ADsculus. Pavia. Ungnadia. The little group of Ilippocastanece, which evidently belongs to the family of Sapindacece, is only dis- tinguished from the latter by its opposite digitate leaves and the 2-ovuled ovarian cells ; and it must further be observed that the genus Ungnadia, placed by botanists near lEscidm, has alternate and impari- pinnate leaves, which bring it still nearer to Sapindacece. For the affinity with Acerinece, see this family. Hippocastanece are chiefly North American, except Castanella [which is not referable to Ilippocastanece, 1 Included in the ‘ Genera Plantarum ’ in Sapindacece, nadia being alternate invalidates the only character where it does not even form a tribe ; the leaves of Ung- distinguishing it from Sapindacece proper. — En. LXX. HEPPOCASTANEiE. 357 Horse-chestnut. (.£scuhis Hippoatstanum.) Horse-chestnut. Sterile cell, open. Horse-chestnut. Fruit. Horse-chestnut. Flower (mag.). Horse-chestnut. Vertical section of flower (mag.). Horse-chestnut. Diagram. Horse-chestnut. Stamen (mag.). Horse-chestnut. Seed, entire and cut vertically. in its restricted sense], which belongs to New Grenada; one species, the Ilorse-chestnut (JE. Ilippo- casUmum) Lb Cultivated in Asia and Europe [but its origin is wholly unknown. There are also two Indian species, one Himalayan, and the other tropical, found in Silhet and Assam. — Ed.]. The bark of the Horse-chestnut contains gallic acid and a bitter principle, which make it rival, as atonic, that of the Willow; its seeds, the taste of which is at once mild and bitter, are rich in starch, and are given in Turkev to broken-winded horses; reduced to powder they serve as soap ; roasted they are used as coffee; and fermented they yield a spirituous liquor, which yields alcohol by distillation ; the young aromatic buds have been employed in place of the Hop in the manufacture of beer. [The fruit and leaves of the American ,T. Ohioeuxis (Buckeye) are considered to be deadly poison. — Ed.] 358 LXXT. MELIANTHEiE. LXXI. ME LI A N TFLEJE, 1 Endlicher. Melianthus minor . Melianthus. Seed (mag.)* Melianthus. Seed, entire and cut vertically (mag.). Melianthus. Fruit. Melianthus. Flower deprived of part of its calyx and petals (mag.). Bersema abi/ssi n i ca . Diagram. (From Planchon’s ‘ M^moire.’) Shrubs, glabrous, glaucous or whitish. Leaves alternate, stipulate, impari- pinnate, leaflets unequilateral, toothed, decurrent ; stipules 2, free, or united into one, very large, intrapetiolar. Flowers £ , in axillary and terminal racemes, shortly pedicelled, bracteate, the lower sometimes apetalous, with 2 fertile and 2 sterile stamens. Calyx compressed, of 5 unequal segments, the inner very short, distant, gibbous below, hooded at the top; the others lanceolate, flat; the two upper larger, covering the lateral. Petals 5, excentric (the fifth minute or 0), subperi- gynous, narrow, long-clawed, cottony in the middle. Disk thickened, unilateral, lining the gibbous bottom of the calyx, and distilling an abundant nectar. Stamens A sub-order of Sapindrtcece see p. 353. — Ed. LXXII. SABIACE^L 359 4, hypogynous, inserted within the disk, nearly central, didynamous and a little inclined ; anthers introrse, 2-celled, ovoid-oblong, dehiscence longitudinal. Ovary oblong, 4-lobed, 4-celled ; style central, arched, hstular, furrowed ; stigma 4-toothed ; ovules 2-4 in each cell, 2-seriate on the inner angle above the middle, ascending or horizontal, anatropous. Capsule papery, deeply 4-lobed, with 4 1-seeded cells opening ventrally at the top. Seeds sub-globose, without aril ; testa crustaceous, shining; hilum conical, foveolate ; albumen copious, fleshy or horny. Embryo small, green ; cotyledons linear-oblong ; radicle thickened at the tip. GENERA. Meliantlius. Bersama. Greyia. The genus Melianthus, which was formerly placed in Zygophyllece, is separated from it by its irregular and racenied flowers, perigynous and isostenionous petals, and ascending ovules. It is only distinguished from Supindacea by its albuminous 1 seed ; and it has therefore been annexed to this family by Planchon and Benthatn and Hooker, together with the genus Bersama , which differs in its often polygamous flowers, its stamens all (or two only) united at the base, its one-ovuled ovarian cells, its capsule with four semi-sept il'erous valves, and its arillate seeds. [The remarkable and beautiful Natal genus Greyia is referred here by Bentham and Hooker til. (Gen. PL p. 1000), and though exstipulate, is regarded as a member of Melianthea with partially consolidated carpels, which, being united by the margins only, enclose one cell with parietal placentas. The fruit breaks up into five follicles. — Ed.] M' icmthu s inhabits South Africa; one species has been introduced into Nepal [no doubt in gardens only. The whole plant has a remarkably heavy smell. — Ed.]. The sugary-vinous nectar secreted by the disk of M. major is much sought by colonists and natives of the Cape That of M. minor is thicker and less esteemed. LXXII. SABIACEJS , Blume* [Shrubs or trees, erect or scant] ent or sarmentose, with watery juice, glabrous or with simple hairs. Leaves alternate, exstipulate, simple or pinnate, entire or serrate, penninerved. Inflorescence various, usually pauicled. Flowers 5 or polygamo-dicecious, small or minute. Calyx 4-5-partite, imbricate in bud. Petals 4—5, equal or unequal, inserted on the receptacle, alternate with or opposite to the sepals, imbricate in bud. Disk small, annular, lobed, rarely tumid. Stamens 4-5, inserted at the base or on the top of the disk opposite the petals, free or adnate to the petals, rarely all equal and fertile with thick filaments, often 2 opposite the inner smaller petals, perfect with clavate or obcuneate filaments, and 3 antherless scale- like ; anthers didymous, separated by a thick connective, or dehiscing transversely or by a deciduous calyptra ; pollen minute, globose. Ovary sessile, 2-3-celled, com- pressed or 2-3-lobed ; styles connate or cohering, with stigmatiferous tips, or stigmas simple, sessile on the lobes of the ovary ; ovules 1-2 in each cell, collateral or super- imposed, horizontal or pendulous, raphe ventral, micropyle inferior, remote from the funicle. Fruit of 1 or 2 dry or drupaceous indehiscent carpels, often sub-globose, 1 8/aphyfea having albuminous spoils completely unites these families.— En. 1 This order is omitted in the original — En. 360 LXXIII. TEKEBINTHACEiE. top usually deflexed, compressed and reniform in Sabia ; endocarp crustaceous or bony, 1-seeded. Seeds compressed or sub-globose, adnate by a broad hilum to tbe base of the cell ; testa membranous or coriaceous ; albumen 0, or a thin layer adnate to tbe testa. Embryo with thick rugose or membranous contoi’ted cotyledons, and an infei'ior curved radicle pointing upwards to the hilum. GENERA. Sabia. Meliosma. Plioxanthus. Ophiocaryon. A small but well-defined order of four genera and about thirty-two species, differing from its allies in tbe isomerous stamens opposite the petals. It is related to Terebinthacece and Sapindacece, but differs from both not only in the above character, but from Terebinthacece in the always few stamens, anthers, fila- ments, two-ovuled ovarian cells, and deflexed carpels ; and from Sapindacem in the short stamens, never eight in number, which are not declinate. Sabia is very remarkable for the opposition of its bracts, sepals, petals, stamens, and ovarian carpels, which is perhaps unique in the Vegetable Kingdom. Its fruit and certain other characters have caused authors to assign it to Menispermacece, with which it has nothing whatever in common. Sabiacea are for the most part tropical Indian, hut Sabia is Himalayan also. Meliosma is common to Asia and America; Phoxanthus and Ophiocaryon , monotypic genera, are from North Brazil and Guiana. The wood of the Indian Meliosma is of excellent quality, and in considerable demand for house- building. The singular embryo of Ophiocaryon, resembling a snake coiled up inside the nut, gives the name of Snake-nut to the fruit. — Ed.] LXXIII. TEREBINTH A CENE (Anacardiea:, Br. — Terebinthacece, Kunth.— -Anacardiaceai, Lind/.) Flowers very often diclinous. Petals inserted on an annular disk, equal in number to the calyx-lobes, sometimes 0. Stamens equal or double the number of the petals. Ovary generally solitary, 1-celled, 1 -ovuled. Ovule suspended from a basilar or lateral funicle. Fruit usually a drupe. Embryo exalbuminous. — Stem woody. Leaves exstipulate. Trees, large or small, with gummy or milky-resinous juice, often poisonous. Leaves alternate, or very rarely opposite ( Bouea ), simple, 3-foliolate or impari- pinnate, exstipulate. Flowers $ , or polygamo-dioecious, or monoecious, regular, small, axillary or terminal, fascicled, spiked or panicled. Calyx 3-5-fid or -partite, often persistent, sometimes accrescent ( Loxostylis ). Petals equal in number to tbe calyx- lobes, inserted at the base or top of an annular disk, aestivation usually imbri- cate, sometimes accrescent (Melanorrhoea) , or 0 ( Pistacia ). Stamens inserted with the petals, or double in number, very rarely more (Melanorrhcea) , and then some imperfect; filaments subulate or filiform; anthers very often versatile, introrse, dehi- scence longitudinal. Ovary 1-celled ( Anacardiece ), or 2-5-celled ( Spondiea: ), or very rarely of 5-6 distinct carpels, of which all but one are sterile, or reduced to the style {Buchanania) ; style simple, terminal or sublateral, sometimes several by the sup- LXXIII. TEREBINTHACEiE. 361 Sumach. (Rhus Cotin us.) Sumach. Fruit, entire and cut vertically. Sumach. Fertile flower accompanied by abortive flowers. Sumach. Vertical section of flower (mag.). Sumach. Stamen (mag.). Pistachio. 9 flower (mag.). Pistachio. Ovary cut vertically (mag.). Sumach. Diagram. Pistachio. Pistil (mag.). Pistachio. Embryo, entire and cat transversely (mag.). Sumach. Fruiting and sterile pedicels. Pistachio. Fruit, entire and cut (mag.). Pistachio. Young ovules with strongly developed funiclc (mag.). 362 LXXIII. TEREBINTHACEiE. pression of the ovaries, which have become confluent with the fertile one ; ovules solitary, pendulous, or broadly adnate to the wall of the cell, or suspended to a basal ascending funicle, micropyle superior and raphe dorsal, rarely erect with the micro- pyle inferior and raphe ventral ( Anacardium , Mangifera, &c.). Fruit usually superior, rarely inferior ( Holigarna ), free, or girt by a receptacular cup, sometimes seated on a broadened pyriform fleshy receptacle [Anacardium) , usually a drupe, indehiscent, or with a dehiscent endocarp, rarely nut-like [Anacardium). Seed erect, horizontal or inverted ; testa membranous, sometimes confluent with the endo- carp ; hilum usually ventral. Embryo exalbuminous ; cotyledons plano-convex ; radicle more or less curved, superior or inferior. [The following is the new arrangement of Anacardiacece [ Terebintliacece ) in the £ Genera Plantarum ’ : — Tribe I. Anacardie^:. — Ovary 1-oelled. A. Ovule usually suspended from a basilar funicle. * Sepals and petals not accrescent. — Rhus, Pistacia, Sorindeia, Buchanania, Comocladia, Mangifera, Anacardium, Bouca, Gluta. * * Sepals or petals accrescent. — Melanorrhoea, Swintonia, Loxostylis. B. Ovule suspended from above the middle of the cell. * Leaves compound. Calyx not accrescent. — Scldnus, Solenocarpvs, Smodingium, Odina. * * Leaves compound. Calyx accrescent. — Astronmm, Parishia. * * * Leaves simple (or pinnate in M auria) . — Semecarpus, G or ljnocarpus, Drimy carpus, Mauria, Holigana, Duvaua. Tribe II. Spondie^:. - Ovary 2-5-celled. Ovules pendulous. Spondias, Dracontomelum, Sclerocarya, Harpephyllum, &c. — Ed.] Terebintliacece approach Rosacea, tribe Amygdalece, in their habit, woody stem, alternate leaves, peri- gynous insertion of their polypetalous corolla and (sometimes polyandrous) androecium ; in the solitary carpel, usually drupaceous fruit, and exalbuminous seed. They approach some Leguminosce in the same points, and also in the frequently monadelphous stamens, and in the more or less curved embryo. Tere- binthacece are allied to Juglanclece, which, like them, have diclinous flowers, a one-celled one-ovuled ovary, drupaceous fruit, exalbuminous embryo, woody stem, and alternate usually pinnate leaves. They are also closely allied to Connaracece and Zanthoxylece, and have therefore been placed in the same class. Burseracece searely differ save in the two-ovuled ovarian cells and the ovules witli superior micropyle and ventral raphe. Connaracece differ in their distinct carpels with two collateral and erect ovules, and their capsular fruit. Finally, Zanthoxylece chiefly differ in their seed, which is furnished with a more or less copious albumen. Tci-ebinthacece are frequent in the intertropical zone of both continents ; they diminish rapidly beyond this zone, so that they are rare in the Mediterranean region,1 in South Africa, North America, and Australia, where however, five genera occur. Terebintliacece yield medicinal substances, edible fruits, [fine varnishes, Ed.], and many woods useful to dyers and cabinet-makers. The principal species are the following: — 1 This refers to genera and species, and not to individuals ; for Pistacia of three species abounds, as do several of Rhus, in some districts of the Mediterranean. — Ed. LXXIII. TEREBINTHACE2E. 363 Pistacia vera (Pistachio). A tree of Persia and Syria,1 now cultivated throughout the Mediterranean region. Fruit with an oily green seed of an agreeable taste, used by confectioners and pharmacists. — P. Lentiscus. A small tree, cultivated in the Greek Archipelago, and especially at Scio, yielding by incision of its trunk an aromatic resin called mastic, softening in the mouth, slightly tonic and astringent, and much used in the Fast to perfume the breath and strengthen the gums [.as also to flavour wines and confec- tionerv. In England it is used for varnishing pictures and in dentistry. — Ed.]. — P. atlantica, from Mauri- tania, also yields a mastic, employed in the same way. — P. Terebinthus, a Mediterranean tree, yields by incision the Ohio or Cyprus turpentine, formerly used in medicine, but now unjustly depreciated ; [it further produces curious horn-shaped galls, used for tanning leather in the East. — Ed.]. Sch in us Molle (False Pepper) is a small tree of tropical America with a sugary edible drupe and a mastic with the odour of pepper, slightly purgative. [Fragments of the leaf floated on water move about by jerks, owing to the discharge of a volatile oil from the tissues. — Ed.] Duraua depen dens is a small Chilian tree with fermentable seeds which yield an intoxicating drink. Ithus Coriaria (Varnish-tree) is a small Mediterranean tree, the dried and pulverized leaves of which furnish a tan much used in the preparation of leather ; its acid fruit is used in Turkey as a condiment. — The flowers and fruits of P. typhina, a North American shrub, are there used to sharpen vinegar, whence its name of Vinegar-tree. — It. Cotmus, a South European shrub, yields Venetian Sumach, or Young Fustic, a valuable orange-yellow dye. Its bark is aromatic and astringent, and is used as a febrifuge. — It. Toxicodendron (the Poison Sumach or Poison Ivy), of North America, has a milky volatile very acrid juice, the touch of which, or even an exhalation from it, brings on violent erysipelas [in many persons, whilst "ther3 are wholly unaffected by it. — Ed.]. An extract is prepared from the leaves, and used in some cutaneous disorders. — It. Vemi.r, a Japanese shrub with milky juice, of which is composed Japanese varnish. Other trees of the same family, natives of China and India, yield also by incision a very dele- terious resinous juice, employed in the composition of Chinese lacquer. The juice of It. venenata, of North America, is not less deleterious, and is similarly employed. It. Succedanca yields the Vegetable Wax of Japan [which is found as a thick white coating of the seed within the capsule. — Ed.]. Mclanarrhaa usitntissima yields the celebrated black varnish of Burmali and Martaban. [A similar varnish is yielded in India by the fruits of Holigarna longifolia. — Ed.] Mangifera indua, an East Indian tree introduced into the Antilles, yields the Mango, a large drupe, variable in colour and size, of a perfumed and sugary-acid taste, becoming purgative when eaten to excess ; [but which is one of the best of tropical fruits. Its bitter aromatic root is used medicinally. — Ed.]. Anacnrdium Occident ale, an' American tree now naturalized throughout the tropics, yields the Cashew- nut, which contains in its pericarp a caustic oil [and black varnish], and in its seed a sweet oil. Its greatly enlarged and pear-shaped receptacle, called the Cashew-apple, is juicy, fleshy, sugary and acid in taste, but a little acrid. The true Cashew wood is furnished by a tree of the Antilles belonging to the family of Ccdrclacece. The juice of the pericarp of Semecarpus gives an indelible black dye, used for marking linen. Sjjondias purpurea (Spanish I'lum) is a West Indian tree with an acidulous sugary drupe. S. dulcis is cultivated in the Friendly and Society Islands for its wholesome and refreshing fruit. [N. lutea, Mombra, and tuberosa, yield the Hog Plum of the West Indies. — Ed.] S. birrea, a native of Senegambia, has a fermentable fruit from which the negros make a spirituous liquor. [The gum of Odina Gdier is used for plasters in India. — Ed.]’ 1 The native country of the cultivated Pistachio nut ‘ Geographie Botanique.’ I did not find it in Syria, and ( P . v an anthelminthic . The seed is called Donkey’s Eye, from the large, pupil-like areola on the testa. Onohnjchis sativa (Sainfoin) is a perennial cultivated herb which furnishes an excellent fodder. / '.v hyiiuiiu in a* jo in, a marsh shrub of India, has a very soft light wood, extensively used for making hats, under the name of [in its limited sense] is confined to the Old World ; the Mountain Ash often accompanies the Birch to the highest northern lati- tudes; linsa is only found north of the tropics; Fragaria inhabits all northern temperate regions, as also extra-tropical South America and the Moluccas; [an Indian yellow-liowered species is sub -tropical]. Brambles abound especially in the northern temperate regions of both worlds, [but there are comparatively few species in America] ; they are rare in the tropics, and some are found in the southern hemisphere as far ns New Zealand. Potentilla , Geumt Dry as Ayrimonia, Sanguisorba, Poterium , and Alchemilla mostly inhabit the temperate ami cool parts of the northern hemisphere; [ Alchemilla is essentially Andean, and Ayrimonia is found in South Africa, South America, and Australia]. Sonic Sanguisorbea belong to tropical and sub-tropical America. The true Spiraacea live north of the tropics ; the others in Peru and Chili. Neurml ff ore confined to the south and north of Africa [and West Asia]. Amygdalea for the most part inhabit the north temperate zone; a few only occur in tropical America, and some in the Canaries, and Azores, and Sandwich Islands; none have yet been met with beyond the tropic of Capricorn. TVmrim itself is not uncommon in tropical America, and Pygcum is essentially tropical Asiatic, and is al'O Ibund in Africa and Australia. Chrysobalanca are chiefly, tropical American, and many of them Brazilian; a few occur in tropical Asia and Africa ; Stylobasium is Western Australian. Quillajea are for the most part Western American ; but Eucryphia is also fouml in Australia. — Ed.] The fruits of Ponuwch, then acid. Bark formerly employed as an astringent in dysentery. Cratayus Azarolus. Fruit pulpy, edible. — [C. Oxyacantha is the Hawthorn, so useful for hedges.] — Mispdin yrrmmiiia (Medlar). Fruit harsh, becoming pulpy and sweet after it is gathered, edible, ■ ui.- Eriobatryajapcnica , the Loquat, a dessert fruit of China and Japan, is now cultivated in all warm countries.] Horn canma (Dog-Rose). Fruit pulpy, making an astringent antiseptic preserve. The achenes are • vermifuge ; young leaves infused as tea. Root formerly praised as a specific against hydrophobia (whence its name). Slem frequently presenting a mossy excrescence (Robin’s Pincushion), caused by the puncture of an insect, and formerly used, under the name of bedeguar, as a diuretic, anthelminthic, and antiscorbutic. — It. Gallon ( Rost petals yield Rose-water by distillation 0'inpl >yed in making an astringent eyewater), and, by maceration iu oil of sesamuni, the attar of Roses used in perfumery. — Agrimonta Eupaioria and A. odoratu (Agrimony). Leaves astringent, employed against angina, nephritis, pulmonary catarrhs, &c. — A IchemiUa vulgaris (Lady’s Mantle). Leaves astringent, vulnerary. — Sanguisorba officinalis (Great Burnet). Plant astringent. — Poterium Sauyuisorba (Salad Burnet). Plant used for forage, and as a condiment, astringent. c c 2 388 LXXVI. ROSACEiE. linbus fmticosus (Bramble or Blackberry). Fruits edible, astringent [sometimes not wlien ripe], as are tlie buds. — It. Idaus (Raspberry). Fruit perfumed, acidulous and sugary, employed in the preparation of jelly and Raspberry vinegar. — Fray aria vesca (Strawberry). Plant edible and medicinal. Fruit succulent, perfumed. Root astringent and diuretic. — Tormentilla erecta, Potentilla reptcms, P. anserina. Roots and leaves astringent- — Gcum urbanum and rivale (Avens). Root aromatic, bitter, tonic and stimulating. — Dri/as octopetala. Plant astringent, tonic. — Tlie flowers of Brayera anthelminthiba, an Abys- sinian tree, are, with the bark of the Pomegranate root, the most efficacious known remedy for taenia. The roots of Spirceacece, like those of Dryadeee, are astringent, and contain resinous aDd aromatic principles, which render them bitter, tonic, and stimulating; such are Spiraa Filipendula (Drop-wort), Aruncus, and Ulmaria (Meadowsweet) ; the flowers of the latter are used to give a bouquet to wine, and their watery infusion is sudorific and cordial. The tribe of Amyydalece is not less useful than that of Pomacece , and the excellence of its fruits is due to cultivation, the sugary matter in them overpowering the acid, without entirely disguising it, and giving a delicious taste to the drupe. Many species, and especially the Bitter Almond, further contain in their seed, and even in their leaves, the elements of hydrocyanic acid, joined to a peculiar volatile oil, which is only developed in contact with water, and which gives them narcotic qualities. Their wood, like that of Pomacece, is much used for joiners’ work. The most useful species is Amyydalus communis (Almond), a tree of the Mediterranean region. The drupe, contrary to that of [many of] the other Amyydalece, is fibrous, coriaceous and dry. The seed yields by expression a mild alimentary medicinal fixed oil, rendered soluble in water by the gum, sugar, and albumine which accompany it, and forming a milky emulsion, with which ‘ loochs ’ and the ‘ sirop d’orgeat’ are prepared. Persica vulyaris (Peach). A tree, originally from China, with edible fruit. The seed contains the elements of hydrocyanic acid ; the fruit and crushed kernel are used in the composition of noyau.1 * The flowers are used in a purgative syrup. — P. laris (Nectarine). Fruit with a soft epicarp, edible. Origin unknown [probably a variety of the Peach]. Anneniaca vulyaris (Apricot). Tree originally from northern Asia (China?). Fruit edible, flesh succulent, perfumed, [much used by travellers, dried and preserved in the form of flat cakes, throughout Central and Western Asia]. Primus spinosa (Sloe). An indigenous tree. Flowers purgative. Fruits very harsh, only becoming edible when the frost has softened the pulp. Bark astringent, bitter, and febrifuge. — P. domestica (Wild Plum) audits wild congener the Bullace (P. insititia ), are spread over the temperate regions of the world. Fruit edible and medicinal. Cerasus Avium (Wild Cherry). A European species, drupe yielding by fermentation and distillation kirschwasser and Cherry wine. Wood reddish yellow, valued by cabinet-makers. C. duracina (Bigarou). A species near the former. Drupe edible, and flesh adhering to the stone. Native country unknown. — C. Juliana (Gean). Drupe edible, flesh easily separating from the stone. Native country unknown. — C. caproniana (Griotte). A tree, originally from Asia, brought, it is said, from Cerasonte by Lucullus, after his victories over Mithridates. Fruit edible, much changed by cultivation, flesh acidulous and refreshing. — C. Mdhaleb. Wood sought after by cabinet-makers under the name of ‘ wood of St. Lucia. Seed of a mild taste and sweet smell, renowned amongst the Arabs against calculus in the bladder, Yielding bv expression a fixed oil, employed in perfumery. — C. Fadus (Bird Cherry). Bark bitter and astringent, proposed as a substitute for quinine. — C. Lauro-Cerasus. A tree of Asia Minor, with aromatic leaves yielding by distillation a volatile oil and a considerable amount of hydrocyanic acid. Distilled water medicinal aud narcotic, even in small doses. Chrysobalanea produce edible drupes, among which is the Cocoa Plum of the West Indian Chryso- balanus Icaco, and various other species, as also some of the genera Moquilia and Parinarium. The latter genus inhabits both the New W7orld and tropical West Africa. P. ex cel sum is the Rough Skin or Grey Plum of Sierra Leone ; and P. matrophyllum the Gingerbread Plum of the same colony. The leaves of the Polynesian P. laurinum are used for thatching, its rough wood for spars, aud its seeds for a perfume. i Perhaps a French liqueur is here alluded to; the true noyau is a West Indian liqueur flavoured with the seeds of Cerasus occidental is. — Ed. LXXVIT. SAXIFRAGES. 389 [The bark of Mnquilia iitilis, the Pottery Tree of the Amazons, abounds in silica to such an extent that when pulverized and mixed with clay it is used in making pottery by the natives of Para. Quil/q/a Saponaria and brasiliensis yield bark, used as soap, and containing a sternutatory allied to saponine. — Ed.] LXXYII. SAXIFRAGES. (Saxifrage, Jussieu.— Saxifrages, Ventenat. — Saxifragaceas, D.C.) % Corolla polypetalnus, perigynous or epigynous, isostemonous or diplostemonous, (vstivation imbricate. Stamens inserted with the petals. Carpels usually 2, distinct, or cohering into an ovary with more or less complete cells. Ovules anatropous. Fruit dry. Embryo albuminous, axile. Stem herbaceous or sub-woody, sometimes woody, variable in appearance. Leaves alternate or opposite, sometimes whorled ; stipules 0 in the herbaceous species, interpetiolar in the woody, deciduous. Flowers 5 , regular or rarely irregular, variously arranged. Calyx usually pentamerous ; sepals distinct or connate. Petals 5, rarely fewer, inserted on a disk lining the calyx-tube, and alternate with the sepals, generally imbricate in aestivation, very rarely 0 ( Chryso - splenium). Stamens inserted alternately with the petals, or double them in number, very rarely indefinite (Baucra) ; filaments filiform, subulate; anthers introrse, 2-celled, ovoid, dehiscing longitudinally. Carpels usually 2, sometimes 1 (Neillia), rarely 3 or 5, free, or united with the receptacular cup into an ovary of more or less perfect cells ; styles and stigmas terminal, simple, sometimes cohering ( Polyosma ) ; ovules usually numerous, fixed either throughout their length, or to the bottom or top of the placentas, horizontal, ascending or pendulous, anatropous ; stigmas terminal, simple, sometimes cohering (Polyosma). Fruit capsular, rarely indehiscent, more rarely fleshy ( Polyosma ) ; caipels separating when ripe at their inner edge, either from the top downwards, or the reverse. Seeds usually numerous, very rarely solitary, or definite, small ; testa smooth or punctate, sometimes winged. Embryo straight, in the axis of a fleshy abundant albumen, and nearly equalling it in length ; cotyledons short, semi-cylindric ; radicle near the hilum, direction various. Sub-order I. SAXIFBA GEJE, D.C.1 Stem herbaceous. Leaves alternate or rarely opposite, exstipulate, or with petioles of which the dilated bases resemble stipules. Flowers all fertile, racemed or panicled, rarely solitary. Petals 5, regular or dimorphous, sometimes 0. Stamens •5 or 10. Ovary free or inferior. PRINCIPAL GENERA. *S«xifrftga. Chrysosplenhun. *Hoteia. * Astilbe. 1 For the most recent classification of Saxifragca, see p. 302. — Ed. 390 LXXVII. SAXIFRAGES, corolla. Sub-order II. CUNONIEA V, D.C. Cunonia cnpcntis. LXXVII. SAXIFRAGES. 391 Canon iit. Pistil (mag.). Cunonia . Embryo (mag.). Cunonia. Transverse section of •ovary (wag.). Cunonia. Transverse section of fruit (mag.). Wein man nia. Seed, entire and cut vertically (mag.). Wein mannia. Inner face of carpel (mag.). Wein mannia. Pistil (mag.). Shrubs or trees, chiefly from the southern parts of both continents. Leaves opposite, simple or compound ; stipules interpetiolar. Calyx imbricate or valvate in aestivation. Petals 4, 5 or 0. Stamens 4-5, or 8-10, or 12-14, or oo . Ovary free or rarely adherent, usually of 2-3 carpels, sometimes of 5 free carpels with coherent styles (Sp i raa nth an um) . PRINCIPAL GENERA. * CallicomA. 'Cunonia. * Bauera. Weinmannia. Curti.sia. Crypteronia.1 Sub-order III. POLYOSME^J. Stem woody. Leaves opposite, exstipulate. Petals 4, valvate in aestivation. Stamens 4. Ovary inferior, l-celled ; placentas 2, parietal; style elongated; stigma simple. Berry 1 -seeded. — Shrubs of tropical Asia and Australia, near Marlea (Alanaiece). GENUS. Polyosma. Referred to Lythrariece in the ‘ Genera Plauturum.’ — E:>. 392 LXXYII. SAXIFRAGES. Sub-order IY. HYDRANGE2E, D.O. Hydrangea. Seed cut vertically (mag.). Hydrangea. Petaloid calyx of the sterile flower (mag.). Hydrangea. Transverse section of ovary (mag.). Hydrangea arborescent. Shrubs of the northern hemisphere. Leaves oppo- site, simple, exstipulate. Fruit a capsule, very rarely fleshy. Flowers in a corymb, the outer usually enlarged and sterile. Petals 5. Stamens 10. Ovary inferior or semi-inferior ; styles 2-5. Fruit opening at the top. PRINCIPAL GENUS. ’Hydrangea. Sub-order Y. ESC ALL ON IEJE, D.C. Shrubs or trees. Leaves alternate, exstipulate. Petals 5-6. Stamens 5-6. Ovary free or inferior ; styles 2. Fruit opening at the base. PRINCIPAL GENERA. * Escallonia. * Itea. [The following is the most recent elaboration of the great family of Saxifragece, as undertaken for the ‘ Genera Plantarum ’ Tribe I. Saxifrage*.— Herbs, usually scapigerous. Leaves usually alternate, exstipulate. Flowers usually 5-merous. Ovary 1-3-celled. Donatia , Astilbe, Saxifraga, Vahlia, Tiarella , Heuchera, Chrysosplenium, Parnassia,1 &c. Tribe II. Francoe*. (See order Francoace*, p. 401).— Scapigerous herbs. Flowers 4- 1 See order Parnassian, p. 402, LXXV1I. SAXIFRAGES. 393 mcrous. Stamens 4 or 8, alternating with scales. Ovary 4- (rarely 2-) celled. (Intermediate between Saxifrages and Crassulaces.) Francoa, Tetilla. Tribe III. Hydranc.es. — Shrubs or trees. Leaves opposite, simple, exstipulate. Petals often valvate. Stamens usually epigynous. Ovary usually 3-5-celled. Hydrangea, Dichroa, Deutzia,1 Decumaria ,* Philadelphus,1 Jamesia, Fendlera, &c. Escallonia rubra. E. rubra . Transverse section of ovary (mng.). E. macrantha. Transverse section of ovary (mag.). Escallonia. Flower cut vertically (mag.). Escallonia. Pistil (mag.). Escallonia. Diagram. Escallonia. Fruit (mag.). Escallonia. Seed, entire and cut vertically (mag.). Tribe I\r. Escallonies. — Trees or shrubs. Leaves alternate, simple, exstipulate, often coriaceous, and gland-serrate. Stamens usually as many as the petals. Escallonia, Qidnfhvia, Jln.na ,2 C'arpodetus, Hen, Polyosma, Anopterus, Argoplnjllum, &c. Tribe V. CTxoxik.e. — Trees or shrubs. Leaves opposite, rarely whorled, simple or com- pound, stipulate. Petals never valvate. Codia, Gallicoma, Sydrceauthemum, Ccratopetalum , Acrophyllum, Ackama, Weinmannia, Cunonia, &c. Tribe VI. Ribesie.e. (See order Ribesiacea:, p. 398). — Shrubs. Leaves alternate, simple ; stipules 0, or adnate to the petiole. Flowers usually racemose. Ovary 1-cclled, 2-carpellary. Seeds immersed in pulp ; raphe free. Pibes. Anomalous Genera. Bancra, Cephalotus A — Ed.] 1 See order VkUitdtlphat, p. 394. 3 See order Brcxiacccr. p. 39(5. 1 See order Ccy/ialutcce, p. 399. 394 LXXVIII. PHILADELPHEiE. Saxifrageee, divided here into five sub-order.?, are connected more or less closely with a good many families. The true Saxifrageee approach Crassulacece in aestivation, diplo3temony and insertion of the corolla, capsular fruit, herbaceous stem and cymose flowers. They resemble Lythrariece in their perigynous petals which are imbricate in mstivation and isostemonous or diplostemonous, and in the capsular fruit ; but in Lythrariece the embryo is exalbuminous. There is also an evident analogy between some genera ( [Hoteia , Lutkea, Astilbe) and Spircea Aruncus belonging to Hosarece. Besides the resemblance in habit, the corolla is polypetalcus, imbricate, perigynous, polyaudrous or diplostemonous ; the carpels are distinct (at least in Lutkea), and open by the inner edge, the leaves are alternate, and in Hoteia clearly stipulate. We have indicated the affinities of Hydrangece with I’hiladdphece (see this family). They also recall, by habit and inflorescence, the genus Viburnum, belonging to Caprifoliacece ; but in Hydrangea the sepals become petaloid, and in Viburnum the corolla is enlarged. For a comparison between Escalloniece and Cunoniacece on the one hand, and Hamamelidece on the other, see the latter family. The Saxifrageee have also some points of resemblance with Parnassiece (see this family). Finally, we must notice a real relation between Escalloniece and Grossulariece ; in both the petals are isostemonous and imbricate in aestivation, the ovary is inferior and one-celled ; there are two styles, and the embryo is albuminous, the stem woody, and the leaves alternate. But in Grossulariece the placentation is more clearly parietal, the fruit a berry, the testa of the seed gelatinous, the embryo minute, and the leaves palminerved. Near Saxifrageee should be placed the little group of Diamorphece (consisting of Diamorpha and Pen- thorum), placed by most authors in Crassulacece, from which it differs in its many-cellod ovary, and especially in its habit ; it maybe allied on the one hand to Saxifrageee, and on the other perhaps to Pongatium {Sphenoclea, of Gaertner), which Jussieu placed near Portulacece [a monopetalous genus or order placed near Campan ulacece ] . The different tribes of this large family occupy different countries. The true Saxifrageee mostly inhabit the high mountains of the northern hemisphere, and are most fully represented in America ; they are very rare in the tropics and antarctic regions. Cunoniece are frequent in the south temperate zone ; they are less common in tropical America, and have never been found north of the tropic. Hydrangece are not rare in upper India, Japan and South America, but become so in Peru and Java. Escalloniece all belong to America, and are for the most part trans-tropical. [Various genera are natives of Australia, New Zealand, tropical and temperate Asia, South Africa, and the islands of Mauritius and Madagascar.] The useful properties of Saxifrageee are unimportant. The mucilaginous acidulous leaves and the root-bulbs of Saxifraga granulata were formerly praised as powerful lithontriptics. S. tridactylitis was employed in diseases of the liver, and Chrysosplenium was a reputed tonic. The resinous buds and aromatic leaves of the Escalloniece are similarly employed in Peru and Chili. [The leaves of various Hydraugeas make a highly esteemed tea in Japan. Weinmannia yields an astringent bark, used both as a medicine and for tanning purposes.] LXXVIII. PHIL A DELPHEvE. (Myrti, partim, Jussieu. — Philadelphehs, Don.) Corolla polypetalous, epigynous, valvate or contorted in (estivation. Stamens double or a multiple of the number of tlce petals. Ovary inferior, many-cellecl, with many-ovuled central placentas. Ovules pendulous or ascending, imbricate. Fruit a capsule. Seeds with a membranous loose testa. Embryo albuminous, axile. — Stem woody. Leaves opposite. Erect shrubs. Leaves opposite, simple, jietioled, quite entire or toothed, deci- duous, exstipulate. Flowers 9, regular, white, [often] sweet-scented, in a terminal LXXYIII. PHILADELPIIEiE. 395 Syringa. (Philadrtphut coronal iux.) Syringa. Diagram. Syringa. One of the cells of the ovary (mag.). Syringa. Vertical section of flower (mag.). Syringa. Pistil and calyx. Syringa. Seed , entire and cat (mag.). Syringa. Transverse section of ovary (mag.). Syringa. Fruit (mag.). Dtcvmarin. r.xpandid flower (mag.). Drcumaria. (.'lowd flower (mag.). 396 LXXIX. BREXIACEiE. cyme. Calyx superior, 4-10-partite, valvate in sestivation, persistent. Petals 4- 5-7-10, inserted under an annular disk crowning the ovary and lining the calyx, alternate with its segments, aestivation induplicate or contorted. Stamens double or a multiple of the number of the petals, inserted with them, 1-2-seriate filaments filiform or compressed ; anthers introrse, 2-celled, ovoid or sub-globose, didymous, dehiscence longitudinal. Ovary inferior or semi-inferior, of 3 4-10 cells ; styles as many as the cells, distinct or more or less coherent ; stigmas free or connate ; ovules numerous, ascending or pendulous, imbricate on projecting central placentas. Capsule 3-10-celled, dehiscing at the top loculicidally or septicidally, or rupturing longitudinally along the sides of the receptacular tube. Seeds with a membranous reticulate loose and ample testa. Embryo straight, axile, as long as the copious fleshy albumen; cotyledons short, semi-cylindric or oval; radicle long, next the hilum, superior or inferior. PRINCIPAL GENERA. * Philadelphia. * Decumaria, * Deutzia. Philadelphece approach Sctxifragece, tribe Hydrangea, in the epigyny, aestivation, and diplostemony of the corolla, the many-ovuled cells of the ovary, distinct styles, capsular fruit, straight albuminous axile embryo, woody stem and opposite leaves. They have some affinities with Onagrariece, founded on the insertion and aestivation of the petals, the numerous pendulous or ascending ovules, and the loculicidal or septicidal capsule ; bi^t Onagrariece differ in the structure of the testa, and in being exalbuminous. Philadelphece inhabit South Europe, Upper India and Japan, but are nowhere numerous. The very strongly scented flowers of the Syringa ( Philadelphus coronarius ), formerly employed as a tonic, have fallen into disuse. The rough leaves of Deutzia scabra are used in Japan to polish wood. LXXIX. BREXIACEpE, Endlicher. Trees or shrubs. Leaves alternate, sub-coriaceous, entire or spinous-toothed, exstipulate. Flowers in axillary and terminal umbels. Calyx 5-fid, persistent, eestivation imbricate. Petals 5, shortly clawed, inserted on the edge of an annular disk, perigynous, {estivation contorted ( Brexia ) or imbricate ( Ixerba ). Stamens alternate, accompanied by palmate scales which are opposite to the petals, and con- nect the bases of the subulate filaments ; anthers introrse, 2-celled, dehiscence longi- tudinal. Ovary free, of 5 many-ovuled cells; style short; stigma 5-lobed; ovules 2-seriate, horizontal, anatropous. Fruit a 5-sided drupe with papillose epicarp and bony endocarp, or a loculicidal capsule (Ixerba). Seeds horizontal, shortly funicled, ovoid-angular, shining ; testa membranous. Embryo [almost] exalbuminous, straight; cotyledons obtuse ; radicle cylindric. This little group is composed of the genera Brexia , Ixerba and Argophyllum ; 1 Brexia inhabits Madagascar, Ixerba Australia, and Argophyllum New Caledonia. Endlicher places Brexiacea after Saxifrageee, as being near the tribe F.scalloniem ; in both, in fact, the stem is woody, the leaves alternate, 1 Argophyllum differs notably in the valvate calyx, copious albumen and minute embryo. — Ed. LXXIX. BREXIACEiE. 397 Brtxia. Flower cut vertically (mag.). Riexia. Ovule (mag.). /ireful. Flower- bud (mag.). lirexia. Petaloid scale emanating from the disk (mag.). Ixerba. Dehiscent fruit (mag.). ami the corolla polypetalous and isostemonous ; the ovary is free (at least in Itea ), with many-ovuled cells ; the ovules an anatropous with central placentation, and style simple ; but in Brexia the embryo has no albumen. A. Brongniart places them doubtfully in the class Ericoidece. 398 LXXX. RIBESIACE/E. LXXX. R I BE ST A CEjE. (Cactorum genus, Jussieu. — Grossularie.®, D.C. — Grose ulaoe/E, Tnndl.) Currant. Vertical section of flower (mag.). Riles Uva-crispa. Transverse section of fruit (mag.). Corolla polypetalous, epigynous, isostemonous, aestivation imbricate. Stamens 5, inserted alternately with the petals. Ovary inferior, 1 -celled ; placentas parietal. Ovules horizontal, anatropous. Fruit a berry. Embryo albuminous. — Stem woody. Leaves scattered, or fascicled. Shrubs, unarmed, or armed with infra- axillary or scattered spines ; branches cylindric or angular. Leaves scattered or fascicled, simple, petioled, palminerved, often glandular, folded or convolute in bud ; petiole channelled, dilated at its base. Flowers $ , or often imperfect through arrest, regular, usually racemed, and termi- nating in very short leafy or sometimes leafless branchlets or buds ; pedicels 2-brac- teolate, jointed near the top. Calyx coloured, marcescent, superior, cylindric, cam- panulate or cupular, 5-4-fid. Petals inserted on the throat of the calyx, alternate LXXXI. CEPHALOTEtE. 399 with its segments, festival ion imbricate, marcescent. Stamens inserted alternately with the petals ; filaments filiform; anthers introrse, 2-celled, ovoid or ohlong, tip einarginato or pointed or glandular, dehiscence longitudinal. Ovary inferior, 1 -celled, crowned by a thin disk ; placentas 2, rarely 3 or 4, nerviform, parietal or edging semi-septa; styles as many as placentas, distinct or more or less coherent; stiymas short, distinct, obtuse ; ovules usually numerous, pluriseriate, horizontal, shortly funicled, anatropous. Berry crowned by the calyx and the withered petals, 1 -celled, pulpy. Seeds angular; testa gelatinous; endopleura crustaceous, adhering to the albumen. Embryo very small, straight, at the base of a horny albumen. PRINCIPAL GENUS. * Itibes. ltiln-siaceir have many analogies with Carter? (which see). They are near Saxifrages, tribe Escalloniece , in their woody stem, alternate leaves, racemed flowers, polypetalous isostemonous epigynous corolla, inferior generally 2-carpellnry ovary, and albuminous embryo; they are separated by' their habit, fleshy fruit, pulpy seeds, and minute embryo. [ It. Grossulana is indigenous on the Morocco Atlas. — Ed.] Ribesiu(T(f inhabit the temperate and cold regions of the northern hemisphere, especially North America ; they are rare in South America, and absent from Africa. I sk.fii. Spkcik.s. — Hihes rubmm (Currant). Berries red or white, containing a sugary mucilage combined with citric and malic acids : much used for dessert, and in the preparation of a syrup and a jelly. — It. ( '/ •>-r ( ( . ■ -( berry). Fruit with a sugary taste, sourish and slightly aromatic, juice ferment- able. and us.'d in England iii the preparation of a spirituous liquor [probably Gooseberry wine is here alluded to.- Kn. - R. nii/ntm (Black Currant). Berries containing a resinous aromatic principle, formerly employed medicinally, now forming the base of the popular drink called ‘ ca-sis.’ * LXXXI. CEPHALOTEEE , Endlicher. Perennial herbs with short subterranean rhizomes. Leaves in a rosette at the top of t lie rhizome, of two forms : some flat, elliptic, entire, nerveless, with a subcylin- dric petiole dilated at its base; others (ascidia), scattered amongst the first, are composed of a petiole which is dilated at the top into two lips, of which the lower is large, hollowed into a cup, and opens by a circular orifice; the upper is smaller, flat, and serves as a lid to the cup. Scape simple, with scattered alternate bracts, ter- minating in a spike composed of 4-5-flowered partial spikes furnished below with linear bracts. Flowers in a corymb, small, white, ebracteate. Calyx coloured, fi-fid ; segments ovate-lanceolate, valvate in aestivation, with a small tooth at the top within, clothed at the thickened base with capitate hairs. Corolla 0. Stamens 12, inserted at the top of the calycine tube, shorter than its limb, the six which alternate with the sepals longer and forwarder than the others; filaments subulate; anthers rounded, didymous, with opposite cells opening longitudinally ; connective sab-globose, spongy. Ovaries fi. crowded, sessile, whorl ed on a flat receptacle around a central bundle of hairs, alternate with the sepals, sub-compressed, 1 -celled; styles terminal, cylindric; stiymas simple; ovule solitary, erect, sub-basilar, anatro- 400 LXXXI. CEPHALOTEiE. Cephalotus follicularis. Cephalotus. Diagram. Cephalotus. Seed, entire and cut vertically (mag.). Cephalotus. Flower (mag.). Cephalotus. Ripe carpel (mag.). Cephalotus. Flower cut vertically (mag.). Cephalotus. Flower deprived of the calycinal limb and stamens (mag.). Cephalotus. Ovule (mag.). LXXXII, FRANCO ACEiE . 401 pous, raphe dorsal. Achenes [follicles] membranous, surrounded by the accrescent calyx and stamens, detaching circularly near their persistent base, which is com- posed of a simple membrane ; the upper portion composed of a double membrane, thickly hairy externally, terminated by the style, and opening longitudinally. Seed with a membranous loose testa, a lateral slender raphe, and an apical chalaza. Embryo straight, very short, occupying the base of a fleshy oily albumen ; cotyledons plano-convex ; radicle cylindric, inferior. 1 ONLY GENUS. * Cephalotus. The only species ( C. foUicularis) inhabits South-west Australia. It approaches both Saxifrage cv and Crassulaceee ; as in the latter, the stamens are perigynous and double the number of the petals (if an isomerous corolla be supposed to exist within the calyx) ; the carpels are distinct, and the embryo is albu- minous. It differs in the aestivation of its calyx, the nature and abundance of its albumen, its solitary and erect ovule, the dehiscence of its fruit, and its dimorphous and radical leaves. Its connection ' ry, fiF with Sa.vifrayea is somewhat similar, besides which some genera of Sa.rifragcce, like it, are apetalous ( Chrysosplenium ). La Billardiere, who discovered the plant in the swamps of Australia, annexed it to llosacecc , with which it has an undeniable affinity ; thus, in Cephalotus, as in Dryas, Geum, &c., the stamens are perigynous, the carpels are free, have one erect ovule, and become acheues [rather follicles, for the dehi- scence in Cephalotus is complete. — Ed.]; but Rosaceee are exalbu- ' Lx WJff — -X minous, stipulate, polyandrous, polycarpellary, and, except in Spireea, W W\J J J the carpels are indeliiseent. Finally, Cephalotus has been compared ^ I»w If L — with Ranunculacca, in which the carpels are free, the ovule solitary and erect, the albumen abundant, and the embryo small and basilar ; but the polysepalism, liypogynism, polyandry, many indeliiseent carpels, and horny albumen, greatly limit the analogy between Rammculacece and Cephalotus. J A. LXXXII. FRANCO ACEyE, Encllicher. Perennial herbs. Leaves subradical, lyrate-pinnatifid or palminerved, sinuous-toothed. Floivers bracteate, in Francos appadiculala. Francoa. Halt of the flower (mag.). D D Francoa. Diagram. 402 LXXXIII. PARNASSIEiE. Francoa. Franco a. Pistil (mag.)* Transverse section of ovary (mag.). Francoa. Seed, entire and cut vertically (mag.). Francoa. Ovule (mag.). terminal racemes. Calyx 4-partite. Petals 4, rarely 5, inserted at the base of the calyx, clawed. Stamens inserted with the petals, 8 or 10 fertile alternating with as many sterile ; filaments distinct, subulate ; anthers introrse, 2-celled, dehiscence longitudinal. Ovary free, tetragonous, oblong, 4-lobed at the top, 4-celled ; stigma sessile, with four lobes alternating with the cells; ovules numerous, 2-seriate at the central angle of the cells, horizontal, anatropous. Capsule loculi- cidal. Seeds numerous, tuberculate and striate. Embryo straight, cylindric, in the axis of a fleshy albumen. GENERA. Francoa. Tetilla. Francoaceee are Chilian herbs, placed near Crassulacece and Saxifragece. They approach the latter in the polypetalous perigynous diplostemonous corolla, many-ovuled ovarian cells, anatropous ovules, capsular fruit, straight albuminous embryo, herbaceous stem, alternate leaves, and racemed flower ; they are scarcely separated but by the contorted aestivation of the corolla, sterile stamens, sessile 4-lobed stigma, and dehiscence of the capsule. They approach Crussulacece in the perigynous and diplostemonous petals, the horizontal anatropous ovules, capsular fruit, herbaceous stem, and alternate leaves. They have also some connection with j Lytlirariecc: in the corolla, stamens and ovary ; but the embryo in Lyth- rariece is exalbuminous, and the leaves are opposite. LXXXIII. PAUNASSIEJfi Endlicher. Perennial glabrous herbs. Stems scape-like, simple, 1 -flowered. Radical leaves long-petioled, cordate [oblong] or reniform, cauline sessile. Flowers 5 , regular, white or yellowish. Calyx 5-partite, imbricate, persistent. Petals 5, perigynous, alternate with the sepals, imbricate in eestivation, deciduous. Stamens 5, fertile, [hypogynous or perigynous,] inserted alternately with the petals ; filaments subulate ; anthers extrorse, 2-celled, ovoid or sub-globose, dehiscence longitudinal ; petaloid scales 5, opyiosite to the petals, perhaps representing bundles of sterile stamens, and dividing into 3, 5, 7, 9, or 15 branches, each terminated by a globose nectariferous gland. Ovary superior (P. palustris), or semi-inferior (P. himalayensis, &c.), 1 -celled, with 3-4 parietal placentas; stigma sessile, 3-4-partite; ovules numerous, anatropous. Capsule 1-celled, with 3-4 semi-placentiferous valves. Seeds very small ; testa membranous, reticulate, loose, extending beyond the endo- pleura. Embryo exalbuminous [or albumen scanty], straight, oblong-cylindric. LXXXIY. CRASSULACEiE. 403 Parnassia pahutris. Pa mas* i a, Parnassia. Parnassia. Diagram. Flower without the corolla (mag.). Pistil (mag.). Parnassia. Seed (mag.). Parnassia. Seed without the testa, entire and cut (mag.)* ONLY GENUS. Parnassia. The genus Parnassia, long annexed to Droseracea, only approaches them in its parietal placenta (see this family). Its bundles of staminodes and its exalbuminous seeds bring it near Hypericineee, but other characters separate it from them, and especially the extrorse anthers. It has been more correctly com- pared with Sturifragete. The few species of this genus inhabit the temperate and cool regions of the northern hemisphere, especially in America ; they are rare [common] on the high mountains of tropical Asia. The Grass of Parnassus (P. palustris), an indigenous plant, is a bitter and astringent herb, formerly used as a diuretic nnd anti-ophthalmic ; a decoction of it is in Sweden added to beer, and stomachic virtues are attributed to it. LXXXIV. CRASS ULA CEJE. (Semperviv.-e, Jussieu. — Succulents, Ventenat. — CrassuL^E, Jussieu. — Crassulace^e, D.C.) Corolla generally polypetalous, perigynous, diplo- ( rarely iso-) stemonous, aestivation imbricate. Stamens inserted with the petals at the bottom of the calyx. Ovaries equalling the petals in number, generally distinct, furnished with a scale at their outer n d 2 404 LXXXIY. CRASSULACEiE. base, and pluri-ovuled ; ovules anatropous. Fruit follicular. Embryo exalbuminous. — Succulent plants. Herbs or undershrubs with cylindric more or less fleshy stem and branches. Leaves usually scattered, fleshy, sometimes cylindric or subulate, simple, entire, or very rarely pinnately lobed ( Bryophyllum , Kalanchoe), exstipulate. Flowers $ ? or imperfect by arrest, regular, in unilateral cymes, or in terminal often dichotomous Sedum. Flower (mag.). Sedum. Flower cut vertically (mag.). Sedum. One petal and two stamens (mag.). Sedum. Pistil (mag.). Sedum. Seed (mag.). Crassula Magnolii. Seed, entire and cut longitudinally (mag.). corymbs, rarely spiked, sometimes axillary and solitary. Calyx usually 5-fid or -partite, rarely 3-20-partite, aestivation imbricate, persistent. Corolla inserted at the base of the calyx ; petals free or connate into a tube, alternate with the sepals, aestivation imbricate or valvate. Stamens adnate to the monopetalous corolla, or inserted alternately with the petals, sometimes double them in number ; filaments distinct, subulate ; anthers introrse, basifixed, with 2 opposite cells, dehiscence longitudinal. Scales hypogynous, as many as carpels, at their outer base. Carpels opposite the petals, and of equal number [except Triactina ], whorled, 1 -celled, many- LXXXV. DROSERACEiE. 405 ovuled, distinct [connate in Diamorpha, Penthorum, Triactina ] ; styles continuous with the back of the ovaries ; stiyma subterminal, on the ventral face ; ovules 2-seriate along the ventral suture, horizontal or pendulous, anatropous. Follicles free, dehiscence ventral. Seeds very small, testa membranous. Embryo straight, exal- buminous, according to Brongniart, [albuminous according to others] ; cotyledons very short ; radicle next the liilum. PRINCIPAL GENERA. Tillsea. * Crassula. * Rochea. * Bryophyllum. * Kalanchoe. * Cotyledon. * Sedum. * Sempervivum. * Echeveria. To Cramdaceas belongs the Bryophyllum calycinum, an undershrub of the tropical regions of the Old World, quoted in the Introduction (p. 7). Crassulaceee are connected with Saxifrages , Francoaceat and Cvphalotea (see those families). They inhabit warm temperate regions of the Old World, and, owing to the fewness of their stomata, and consequent slight transpiration, they remain green in the most arid countries. They especially abound beyond the tropic of Capricorn ; half of the known species live in South Africa, the sixth part in Europe and the Mediterranean region, and an equal number in Central Asia and the Canaries, and in sub-tropical America, Southern Asia and Australia. The watery juice of Crassulaceee contains, besides an abundance of albumine, astringent principles and malic acid, free or combined with lime. The useful species are the following : — Sempervivum Tectorum (House Leek). Juice taken as a refreshing drink, and united to some fatty body applied externally for burns and bleeding. The leaves are also used to remove corns ; a property also possessed by Crassula Cotyledon and arborescens. — Sedum album (White Stonecrop). Juice astringent, refreshing. — S. Telephium (Orpine). Formerly cultivated as a pot- herb. Juice employed to remove corns and to heal wounds.— >S'. acre (Biting Stonecrop). [Purgative and emetic if taken internally, rubefacient outwardly, and recommended for bad ulcers. — S. re- flexion. Refreshing, diuretic, vulnerary. — Crassula rubens. Leaves employed as a vulnerary. — Umbilicus pendulinus (Navelwort). An emollient, employed outwardly for hard nipples. LXXXY. DROSEBACEIE. (Drosere^e, Salisbury. — Droserace^e, D.C.) Drosera. Vertical section of flower (mag.). Drosera. Seed (mag.). Sundew. ( Drosera rotundifolia.) 406 LXXXY. DROSERACEiE. Drosera. Stamen, outer face. Dioncea. Pistil cut vertically (mag.). Dioncea. Seed, entire and cut vertically (mag.). Dioncea muscipula. Dionaa. Pistil (mag.). Dioncea. Fruit (mag.). LXXXV. DROSERACE/E. 407 Petals 5, hypogynous, imbricate. Stamens 5, or rarely more ; anthers extrorse. Ovary usually A -celled, and with parietal placenta t ion. Capsule with semi-placenti- f cron s valves. EMBRYO albuminous. Herbs, sometimes undershrurs, stemless ot caulescent, sprinkled and ciliated with glandular tracheiferous hairs. Leaves alternate, usually in a rosette, simple, entire, or rarely cut, coiled from top to bottom before expansion [outwards or back- wards in Drosophyllum, inwards or forwards in tlie other genera] ; blade contracted into a petiole, sometimes jointed, with median nerve irritable, and the two halves of the blade closing quickly at the least touch ( Dioncea , p. 150) ; stipules 0, repre- sented by hairs edging the dilated base of the petiole [or scarious]. Flowers £ , regular, solitary, or in unilateral circinnate cymes [or subcorymbose] . Calyx of 5 sepals, free or almost free, imbricate. Petals 5, liypogynous, or united at the base with the sepals, shortly clawed, imbricate in bud, marcescent. Stamens liypogynous [or perigynous, rarely epipetalous] , sometimes equal and alternate with the petals; sometimes double ( Dioncea , Drosophyllum) ; sometimes triple or quadruple ( Dioncea ), and then some opposite to the sepals singly, and the others opposite to the petals in twos or threes ; filaments filiform, linear, free ; anthers extrorse, 2-celled, erect (Dimuva, Droscra, Roridula), or incumbent and versatile ( Drosophyllum , Byhlis), dehiscence longitudinal, or rarely apical ( Byhlis , Roridula). Ovary free, sessile, 1 -celled, with 3-5 parietal placentas, sometimes united in one, basilar ( Dioncea , Dmsopltyllum), rarely 2-celled ( Byhlis ) or 3-celled ( Roridula ) ; styles as many as the placentas, undivided or bifid or laciniate ( Drosera ), or coherent in a simple style {Dionaui, Roridula, Ac.) ; stigmas capitate, lobed or fringed ; ovules anatropous, usually upright or ascending, rarely pendulous from the top of the cells in the 3-celled ovaries (Roridula). Capsule sometimes 1-celled, opening throughout its length into 3-5 semi-placentiferous valves, or at the top only, with a free basilar placenta (Jiroscra, Aldrovanda, Drosophyllum, Dioncea)-, or 2-celled with 2 loculicidal valves, bearing on the middle a seminifei'ous semi-septum (Byhlis) ; or 3-celled with 3 loculi- cidal semi-septiferous valves separated from the persistent seminiferous columella Roridula). Seeds with a crustaceous granular or striate rarely loose and cellular testa; albumen fleshy. Embryo straight, axile or basilar; cotyledons truncate; radicle very' short, inferior or superior. GENERA. Drosera. Drosophyllum. Aldrovanda. * Dionsea. Roridula. Byblis. Droteracnr, which are near Violariea in the usually parietal placentation, aestivation, insertion, structure of the fruit and presence of albumen, are separated from them by habit, vernation, the absence of stipules ami extrorse anthers. With Frankeniacece they have somewhat analogous relations, together with that of tin- extrorse anthers ; but in Frankeniacece the calyx is tubular, and the leaves are opposite or quaternary. Nepent/iece and Sarraceniece have also some connection with- Droseracece, founded on the loculicidal capsule, the nature of the seeds, the albuminous embryo, and the exceptional structure of the leaves; but Ne/ienthcu are dioecious (see these families). Parnassieee, which contain but a single genus, have been annexed to Dromracea by many botanists, but they differ in habit, the petaloid glauduliferous scales opposite to the petals, the sessile stigma and exalbuminous seed. Droscracets inhabit nearly all climates. Drosera are widely scattered, being especially frequent in Australia, equatorial America and South Africa. They are met with in the turfy prairies of Europe and 408 LXXXYI. HAMAMELIDEiE. North America. The other genera are monotypic. Aldrovanda floats on stagnant waters in the South of France and North Italy [and Bengal], Drosophyllum in the Spanish peninsula [and Morocco], Dioncea in the savannahs of South Carolina, Roridula in South Africa, Byblis in Australia. The properties of Droseracece are imperfectly known. The indigenous Droserce are acidulous-acrid, hitter, vesicant, and very hurtful to sheep. They have been found useful in dropsy and intermittent fevers. Their name of Sundew is derived from the tiny drops secreted by the glandular hairs of the leaves. [The glandular hairs on the leaves of various species are irritable, curving round insects that get entangled by their viscid tips. — Ed.] LXXXVI. HAMAMELIDEaE. (Hamamelidea:, Br. — Hamamelacea:, Lindl.) Corolla 0 or polypetalous. Petals 4-5, perigynous, aestivation valvate. Apeta- lous flowers polyandrous ; petaloid flowers diplostemonous. Stamens some fer- tile, opposite to the petals ; others sterile, squamiform, alternate. Ovary semi-inferior, 2-celled ; ovules pendulous, anatropous. Eruit a capsule. Embryo albuminous, axile ; radicle superior. — Stem woody. Leaves alternate, stipulate. Shrubs, or small or large trees, with cylindric branches glabrous or stellately hairy. Leaves alternate, petioled, simple, penninerved ; stipules geminate at the base of the petioles, deciduous. Flowers § , or $ ? by arrest, sub-sessile, in a fascicle, head or spike, usually bracteate. Calyx superior, sometimes of 4-5 lobes, imbricate in bud, deciduous ; sometimes truncate, with 5-7 sinuous teeth, callous. Corolla 0 ( Fothergilla ) or polypetalous. Petals perigynous, alternate with the calyx-lobes, valvate in bud, deciduous. Stamens of the petaloid flowers inserted with the petals, and double them in number, those opposite to the petals fertile, the others sterile, squamiform ; those of the apetalous flowers indefinite ; filaments free, short Uamamelis virginica. LXXXVI. HAMAMELIDEiE. 409 Ilamamelis. Expanded flower (mag.). Ilamamelis. Capsular woody fruit, opening in two bifid valves, with horned endocarp, separating into two shells (mag.). Khotloleia Championi. Flower (rung.). I/amamelis. Seed (mag.). JJamamelis. Seed cut vertically (mag.). Ilamamelis. Anther (mag.). Ilamamelis. Embryo (mag.). Ilamamelis. Transverse section of fruit (mag.). 410 LXXXYI. HAMAMELIDEiE. and dilated at the base in the petaloid flowers, elongated and sub-clavate in the apetalous ; anthers introrse, 2-celled, sometimes ovoid-quadrangular, cells opposite, adnate to a connective which is usually prolonged into a point, divided by a longi- tudinal median septum, and opening by valves ; sometimes ( Fothergilla ) horse-shoe shaped, opening by a semicircular slit. Ovary semi-inferior, 2-celled ; styles 2, distinct ; stigmas simple ; ovules solitary, or very rarely many, of which only the lower is fertile ( BucMandia ), suspended to the top of the septum, anatropous or semi- anatropous. Capsule semi- or quite superior, 2-valved, valves 2-fid at the top. Seeds pendulous. Embryo straight, occupying the axis of a fleshy or cartilaginous albumen, and nearly equalling it in length ; cotyledons foliaceous, flat or curled at the edges ; radicle cylindric, superior. PRINCIPAL GENERA. #Hamamelis. #Fothergilla. *Rhodoleia. [This and the following order have been recently studied carefully for the ‘ Genera Plantarum,’ and combined ; with the following arrangement of the genera, to which a few new discoveries are added. A. Ovarian cells 1-ovuled. Petals 0. — Parrotia, Bavidia, Fothergilla, Disanthus, Bistylium, Sycopsis. Petaloid (petals sometimes reduced to scales). — Corylopsis, Bicoryphe, Maingaya, Hamamelis, Tnchoeladus, Loropetalum, Tetrathyrium, Eustigma. B. Ovarian cells 2-ao -ovuled. Bhodoleia, Ostrearia, Buchlandia, Altingia, Liquida/nibar, Bisanthus. — Ed.] llamamelidece approach Cornea: in insertion, number and {estivation of the petals, the pendu- lous anatropous ovules, albuminous axile embryo, woody stem and capitulate inflorescence. Cornea are separated by their complete epigynism, the alternation of the stamens, simple style, fleshy fruit, [usually] opposite and exstipulate leaves. The same relations exist between Araliacece and Hamamelidece. There is also a resemblance between them and Saxifrageee, tribe Cunoniacece, both being perigynous, diplostemonous, digynous, and having anatropous ovules, capsular fruit, albuminous axile embryo, and woody stem ; Cunoniacece differ principally in their interpetiolar stipules, opposite leaves, and imbricate aestivation of the petals. The same applies to Escallonice, excepting that these have alternate and exstipulate leaves. Finally, an affinity exists between the diclinous apetalous Hamamelidece and Platanece, consisting in polyandry, inferior ovary, pendulous ovules, dry fruit, albuminous and axile embryo, woody stem, alternate stipulate leaves. For the diagnosis, Platanece differ in the flowers having no perianth, and being arranged in catkins, and their fruit being a nucule. The affinity is still more close with Liquid- ambar , which Mr. Bentham unites to Hamamelidece. They also approach Gruhbiacece in the general structure of their flowers and the valvular anthers. (See also Garryacece.) This family, which contains but few species, is dispersed over both hemispheres; it inhabits South America, Japan, China, India, Persia, Madagascar, and the Cape of Good Hope. With regard to the useful species, the seed of the Virginian Hamamelis is oily, the leaves and bark are medicinal. The wood of Parrotia is extremely hard, and in Persia is called Iron-wood. LXXXYII. BALSAMIFLUiE. 411 LXXXYII. BALSAMIFLUIE , Blume. L iqu it In mbar styracijlua . d and 9 flowering branch. Liquidambar. Q flowering branch Liquidambar. Vertical section of seed (mag.). Liquidambar. Ovules, perfect and abortive (mag.). Liquidambar. Stamen (mag.). Liquidambar . Liquidambar. Embryo (mag.). Transverse section of seed (mag.). 412 LXXXVII. BALSAMIFLU2E. Liquidambar. Transverse section of g catkin. Liquidambar. Stigmas and abortive anthers (mag.). Liquidambar. Vertical section of ovary (mag.). Flowers monoecious, in catkins or capitula. Perianth single or 0. Stamens numerous. ? Flowers with a single accrescent perianth. Ovaries connate, 2- celled; styles 2 ; ovules numerous, sub-anatropous. Fruit compound, of several 2 -valued capsules. Seeds {fertile), elliptic, peltate, albuminous. Embryo axile; radicle superior. — Stem woody. Leaves alternate. Stipules caducous. Juice resinous. Trees with alternate branches, balsamic juices exuding from their bark. Leaves alternate, petioled, entire or lobed, with glandular teeth, edges of the lobes folded inwards before expansion ; stipules fugacious ; floral buds terminal, scaly, preceding the leaves. Flowers monoecious, in catkins or unisexual capitula, ; bracts 4, caducous. $ Flowers aclilainydeous, composed of stamens agglomerated between the bracts of the capitula. Anthers pyramidal-linear, 4-angular, with 2 opposite cells ; filaments short orO. ? Flowers: Calyx infundibuliform, entire or glandular- lobed. Petals 0. Stamens sterile, often 4-9, inserted around the top of the calyx. Ovary semi-inferior, with 2 antero-posterior cells, many-ovuled ; styles 2, linear, pointed, recurved, papillose on their inner face ; ovules sub-anatropous, inserted in 2 rows at the inner angle of each cell. Capsules connate by their edges, septicidal above the middle. Seeds few, or solitary by arrest, the arrested ones numerous, deformed ; the fertile sub-peltate, elliptic, membranous, or shortly winged towards the top ; albumen thin. Embryo axile ; cotyledons flat ; radicle short, superior. ONLY GENUS. * Liquidambar. Balsamifluat are connected with Platancce (see this family) and Hamamelidece, to which they are joined by Bentham ; they differ in their inflorescence and aggregate fruit. Liquidambar also ap- proaches Salicineee, and especially the Poplars, in inflorescence, diclinous achlamydeous and polyandrous flowers, many-ovuled ovary, capsular fruit, woody stem, and stipulate leaves ; but Salicineee are dioecious, the ovary is one-celled, with parietal placentation, the ovules anatropous, and the funicle hairy. But four species are at present known of Liquidambar-. — L. Altingia , a gigantic tree, forms vast forests in Java, Asia, New Guinea, &c., under the names of Rosa-mallos, llassa-mala, &c. Z. orientate, a small tree resembling a Maple, inhabits the isle of Cyprus and Asia Minor. L. macrophytla and styraciflua grow in North America [another is Chinese], L. styraciflua yields [the North American] Liquidambar Balsam, obtained by incisions in the trunk. This balsam contains a tolerable quantity of benzoic acid ; it is of the consistence of a thick oil or of soft pitch. Liquid styrax, a sweet balsam, much used by the Orientals as a perfume, and entering into the composition of several medicaments, is the produce of L. Altingia and perhaps also L. orientate. [The bark of all is a hot, bitter stomachic.] LXXXVIII. BRUNIACEiE. 413 LXXXVIII. BRUNT ACE JE. Bninia nvJijIora. BrunUi. Diagram. fruit (mag.). (mag.). Shrubs ov undershrubs from tlie Cape of Good Hope, Heath-like in habit. Leaves small, acerose, sub-trigonous, entire, usually imbricated in 5 rows, exstipu- late. Flowers $ , small, regular, generally in a spike or head, sessile, 5-braeteate. Calyx 5-4-partite, persistent or deciduous, imbricate in bud. Receptacular cup enveloping the ovary, very rarely spi'ead into anepigynous disk ( Thamnea ). Petals 5-4, inserted on the edge of the cup, alternate with the calyx-lobes, usually free, sometimes connate with the stamens into a tube at the base, imbricate in bud. Stamens inserted with the petals, equal in number and alternate with them; fila- nu nts free, or sometimes actuate to the claws of the petals ; anthers introrse, 2-celled, cells opposite, parallel or diverging at their base, and opening longitudinally. Ovary semi-inferior or inferior, very rarely free ( Raspailia ), 1-2-3-celled ; styles 2-3, terminal, more or less cohering ; stigmas minute, papillose ; ovules anatropous, solitary or 2, collateral in the cells of the 2-3-celled ovary, and pendulous from the central angle or near the top of the septum, solitary in the 1-celled ovaries (in Thamnea the ovary is 1-celled, with 10 pendulous 1-seriate ovules). Fruit crowned by the calyx, and sometimes by the persistent corolla and androecium, dry, indehis- cent or capsular, often with two 1-2-seeded cocci, dehiscence internal, longitudinal. 414 LXXXIX. HALORAGEiE. Seeds inverted, testa crustaceous, hilum naked, or covered with a fleshy cupule. Embryo minute, straight, at the top of a copious fleshy albumen ; cotyledons short ; radicle conical, superior. PRINCIPAL GENERA. Berzelia. *Brunia. Raspailia. Berardia. Staavia. Lincouia. Bruniaceee approach Hamamelidece , Cornea , Araliacece, and Umbelliferee, in the polypetalous and isostemonous corolla, epiguy, solitary or geminate pendulous anatropous ovules, and albuminous embryo ; but in all these families, independently of other differences, the aestivation of the petals is [usually] valvate. Bruniacea have besides, in the genus Baspailia, a quite exceptional character in their ovary, superior to the calyx, and inferior to the petals. [The properties of Bruniaceee are quite unknown.] LXXXIX. IIALORAGEJE. (Onagrarum genera, Jussieu.- — Haloragea^, Br. — Cercodiace^e, Jussieu. — Hygroble, Richard.) Calyx superior. Petals inserted on the calyx [or epigynous] alternately with its lobes, sometimes 0. Stamens inserted with the petals, equal or double in number to the calyx-lobes, sometimes reduced to one. Ovary inferior, of one or several 1-ovuled cells ; ovules pendulous. Embryo straight, in the axis of a fleshy albumen. Aquatic herbs, or terrestrial [herbs or] undershrubs. Leaves usually opposite or whorled ( Myriophyllum , Hippuris ), simple, entire or toothed, the submerged usually pectinate, rarely entire ( Myriophyllum ) ; stipules 0. Flowers $j ( Haloragis , Hippuris), or monoecious through arrest ( Myriophyllum , Hippuris), regular, incon- spicuous, sessile in the axil of the leaves, solitary or fascicled, often 2-bracteolate at the base, sometimes whorled in a spike, rarely pedicelled, sometimes panicled [or racemed]. Calyx superior, usually 4-fid or -partite, sometimes truncate or almost wanting. Corolla 0, or petals inserted on the calyx, alternate with its segments, usually longer, sub-concave, valvate or imbricate in estivation, spreading after flowering, and deciduous. Stamens inserted with the petals, usually equal and opposite to the calyx-lobes, or double in number, sometimes reduced to one ( Hippuris ) ; filaments filiform ; anthers introrse [or dehiscence lateral], 2-celled, oblong or ovoid, basifixed ( Myriophyllum , Haloragis) or dorsifixed [Hippuris), dehiscence longitudinal. Ovary inferior, of 2-3-4 1-ovuled cells, rarely 1-celled [Hippuris) ; styles as many as ovules, often short or nearly 0 ; stigmas tomentose or penicillate ; ovxdes pendulous from the top of the cell, anatropous. Fruit nutlike, often crowned by the calyx- limb, 2-3-4-celled, or 1-celled normally or by arrest. Seeds inverted, testa mem- branous. Embryo straight, in the axis of a more or less fleshy albumen ; cotyledons short, obtuse ; radicle longer, next the hilum, superior. PRINCIPAL GENERA.’ Hippuris. Myriophyllum. Haloragis. Serpicula. Proserpinaca. Meionectes. 1 The two anomalous genera, Gunnera and Callitriche, Hooker fil., are treated as distinct natural orders in which have been included in this order liy Bentham and this work. — Ed. LXXXIX. IIALORAGEiE. 415 Ila/oragis e recta. ITaloragis. Q flower (mag.). Ilaloragis. 9 flower cut vertically (mag.). Ilippuris . Diagram. Ilippuris vulgaris. Ilaloragi* . £ flower (mag.). Ilaloragi*. Ovule (mag.). Ilippuris . Pu>til (mag.). Ilaloragi s. Diagram. I/ippuru. Stamen, inner fuce (mag.). Ilippuris. 9 flower (mag.). Ilippuris. Vertical section of 5 flower (mag.). Ilippuris . Fruit (mag,). Ilippuris . Vertical section of fruit (mag.). 416 XC. GTJNNERACEiE. The affinities of Haloragece with Onagrarieee will be indicated in the description of the latter.1 They are near Trapece, which were formerly placed in the same family, and which only differ in their hemi- spherical stigma and exalbuminous embryo. They also approach Combrctacece, which are separated by their ovary (which is always 1-celled and 2-4-5-ovuled), their simple style, drupaceous fruit, and exalbu- minous embryo. Haloragece are rare in the tropics ; they are found most abundantly in temperate and cold countries ( Hippuris) , especially beyond the tropic of Capricorn; Haloragis is only found in Australia and the neighbouring islands. They are of no use to man. XC. GUNNERACEEE? Endlicher. Gunnera scabra. Gunnera. Fruit cut vertically (mag.). 1 The affinity between Haloragece and Onagrarieee is view of the relations of Trapa. — En. extremely slight, and was based chiefly on an erroneous 2 See under Haloragece, p. 414. — Ed. XCI. CALLITRICHINE2E. 417 Stem herbaceous. Leaves all radical, petiole long, blade usually reniform, crenulate, hairy. Flowers 5 , or imperfect, monoecious or dioecious, ebracteate ; scape bearing a very close spike, composed of several spikelets, each furnished with a bract. Perianth 4-partite, 2 segments small, tooth-shaped, alternating with 2 larger, petaloid, caducous, sometimes obsolete, reduced to scales in the $ flowers. [Perianth otherwise described as, Calyx-lobes 2-3, equal or unequal, or 0. Petals 0 or 2, hooded.] Stamens 2, opposite to the petaloid segments ; filaments short [or long] ; anthers 2-celled, [basifixed], dehiscence longitudinal [lateral]. Ovary in- ferior, 1 -celled; styles 2, covered with stigmatic papilkc ; ovule solitary, pendulous from the top of the cell. Fruit a drupe. Embryo minute, at the top of -a fleshy albumen ; radicle superior. GENUS. * Gunnera. A. de Jussieu considered that, in many cases, apetalous and diclinous structures were to be regarded as arrested conditions of perfect types, which masked affinities without annulling them; and this explains the position he gives to Gunneraeea, between Araliacece and Cornea, which they approach in their flower, which is hermaphrodite in some species, iu their epigyny, the single pendulous anatropous ovule in each carpel, the drupaceous fruit, and the minute embryo at the top of a fleshy albumen. The same considerations establish the affinity of Gunneraceee with Halorageee ; in both these families may be observed, on the one hand, a perfect organization ; on the other, the absence of petals, and the abortion of the reproductive organs; and the analogy is increased by the stigmatic papillae along the styles. The few species of this little group inhabit tropical Southern Africa and America, the high mountains of tropical America, the Sandwich and Society Islands, Java, [Australia] and New Zealand. The fruit of Gunnera macroplnjlla is used in Java as a stimulant. The roots of G. scabra, called 1‘iitnjiie in Chili, and cultivated in Europe for the beauty of its leaves, which are sometimes more than six feet in diameter, contain astringent principles, and are used in Chili for tanning skins, and as an anti-dysenteric. XCI. CALLITRICIIJNEJE, Leveille.1 Floating flaccid annual herbs, simple or branched, stem cylindric. Leaves opposite, sessile, the lower [submerged] , often linear, the upper oval, 1-3-nerved, entire, emerged, often rosulate ; stipules 0. Flowers § or monoecious-dioecious by arrest, solitary and sessile in the axil of the leaves ; involucre diphyllous [or 0], of 2 lateral opposite curved somewhat fleshy and coloured [white] persistent or deciduous leaflets. Perianth 0. Stamen posterior, rarely 2 antero-posterior, inserted below the ovary in the $ flowers \ filament filiform, elongated; anther reniform, basifixed, 1-celled, opening at the top by an arched slit. Ovary free, at first sessile, then stipitate, formed of 2 bilobed carpels with -two 2-ovuled cells ; 2 styles 2, distant ; stigmas acute, papillose over the whole surface; ovules curved, fixed to the central angle near the top of the cell ; micropyle lateral and internal, jflaced 1 See under Halorageee, p. 414. — En. cells, but considered as originally 2-celled, each cell being * The ovary is 1-lcbed and 4-celled with 1-ovuled divided into two by the inflection of its walls.— Ed. E E 418 XCII. RHIZOPHOREvE. below the top. Fruit fleshy-membranous, indebiscent, 4-celled and -lobed, sides rounded or sharp. Seeds with a finely membranous testa Embryo a little arched, Callitriche. Callitriche. flower, diagram. 9 flower, diagram. Callitriche. 9 flower (mag.). Callitriche. Fruit (mag.). Callitriche. Ripe semi-carpel, cut vertically (mag.). occupying- the axis of a fleshy albumen, and nearly equalling it in length ; cotyledons very short ; radicle superior. ONLY GENUS. Callitriche. Callitiichecp. were formerly included in Jlaloragecc, which they approach in the aquatic herbaceous stem, the opposite leaves, axillary flowers, 1-ovuled cells, distinct [papillosej styles, [pendulous ovules,] and albuminous embryo ; being separated by the achlamydeous flowers, and fruit of four cocci. They present some remarkable analogies with Euphorbiacece, in their diclinous achlamydeous involucred flowers, stamens inserted on the receptacle, ovary with 1-ovuled cells, pendulous anatropous ovules, distinct stigmas, fruit of cocci, and albuminous axile embryo : analogies which have led some modern botanists to consider Callitriche as aquatic Euphorbiacece : they, however, differ in their 4-lobed ovary, and the structure of their seeds. CaJlitrichinece inhabit stagnant water in Europe and North America [and most other temperate parts of the globe]. They are useless. XCII. RlITZOPIIOREsE. 1 [Trees or shrubs, usually quite glabrous ; branches terete, swollen at the nodes. Leaves opposite and stipulate, rarely alternate and exstipulate ( Combretocarpum , Anisophyllea), petioled, thickly coriaceous, usually quite entire ; stipules inter- This order is omitted in the original. — Ed, XCII. RHIZOPHOREiE. 419 petiolar, very caducous. Flowers $ , in axillary cymes, racemes, panicles or spikes. Calyx-tube more or less adnate to tlie ovary, rarely free; limb 3-14-lobed or entire, persistent, lobes valvate. Petals as many as the calyx-lobes, usually small, concave or involute, and embracing the stamens, notched, 2-fid or lacerate, rarely entire, convolute or indexed in bud. Stamens 2-3-4 times as many as the petals, rarely equal in number, often inserted in pairs opposite the petals, on the edge or at the base of a perigynous disk ; filaments long or short ; anthers basi- or dorsi-fixed, 2-celled or multi- locellate. Ovary usually inferior, 2-5- (rarely 3-G-) celled, or 1- celled by the suppression of the septa ; style simple (several in Anisophyllea ) ; stigma simple or lobed ; ovules usually 2, collaterally suspended to the inner angle of each cell above its middle, rarely 4 or more, pendulous, anatropous, raphe ventral. Fruit usually coriaceous, crowned with the calyx-limb, indeliiscent or rarely septicidal, 1 -celled and 1 -seeded, or 2-5-celled with 1-seeded cells. Seeds pendulous, arillate or not, testa coriaceous or membranous, albumen fleshy or 0. Embryo inverted in the albuminous seeds, usually small and axile, with terete radicle and semi-terete cotyledons ; in the exalbuminous seed the embryo is usually elongate, with small or inconspicuous often connate cotyledons. Triiu: I. Rhizophore.e. — Ovary inferior ; style 1. Embryo exalbuminous, radicle very large, protruded from the fruit when still on the tree. Leaves opposite, glabrous, quite entire, stipulate, Rhizophora , Ceriops, Kandelia, Bruguiera. Tribe II. Cassipocre.e. — Ovary inferior, semi-inferior, or superior; style 1. Embryo in the axis of a fleshy albumen. Leaves opposite, usually glabrous and quite entire, stipulate. , Carallia, Gy no troches , Weihea, Cassipourca, &c. Tribe III. Axisopiiylles. — Ovary inferior ; styles 3-5. Embryo exalbuminous. Leaves alternate. Anisophyllea, Combretocarpus. Rhiznphorca are nearly allied to .V^yrt.aceee in habit, opposite sometimes pellucid dotted leaves, and in the exalbuminous seeds of the tribe Rhizophorca; ; but they differ in their valvate calyx-lobes, stipules, and usually definite stamens. The same characters distinguish them from Melastomacece. Lythrariece, which agree with them in the valvate calyx and usually definite stamens, have many ovules and large usually crumpled petals. Combretace/r, which are still more closely allied, differ in their monocarpellary ovary, folded or convolute cotyledons, and exstipulate leaves. This order is almost wholly tropical, and to a great extent littoral; the species of the tribe Rhizopho- reer forming, with Avicenniu (see Verbenacea) , the Mangrove forests of tidal rivers in both the Old and New Worlds. Most of these root from the branches into the mud below, and thus form dense thickets, the roots becoming stems after a time. The tribe Cassipourece is, with the exception of Cassipourca itself, confined to the Old World. Anisuphyllen is remarkable for its distichous alternate leaves, of which every second one is reduced to a minute stipuliform body. Of the properties of Rhizophorca little is known. The wood of several is hard and durable; the Irnrk of Bmguirra yields a black dye ; and the fruit of Rhizophora Mangle is described as edible, and when fermented produces a light wine, drunk by the natives of the Indian Peninsula. — Ed.] 420 XCIII. COMBRETACEiE. XCIII. COMBRETA CEAE,1 Br. (Terminaliace^e, St. Hilaire. — Myrobalane^e, Jussieu.) Quisqualis indica. Quisqualis. Ovary cut vertically (mag.)„ 1 The tribe Gyrocarpcce, which is referred to Lciurinece in this work, is included in the 1 Genera Plantarum ’ under Combretaoece, from which it differs chiefly in the structure of the stamens, and the short funicles of the seed. — Ed. XCII1. COMBRETACEiE. 421 Quisqualis. Tmnsverbo section of ovary (mag.)* Quisqualis. Trims verse section of the floral tube, with the style joined to one of the sides. Quisqualis. Seed, entire and cut vertically (mag,). Quisqualis * Ovule (mag.). Corolla polypetalous , epigi/nous, isostemonous, or 2-'3-stemonous, contorted or valvate in bud, sometimes 0. Stamens inserted with the petals. Ovary inferior, 1 -celled ; ovules pendulous from the top of the cell. Embryo exalbuminous. Trees or shrubs, erect or climbing. Leaves alternate or opposite, simple, penninerved, entire or toothed, coriaceous ; petiole often bigiandular at the top, exstipulate. Flowers regular, $ , or imperfect by arrest, in spikes, racemes or heads, naked or involucrate, axillary or terminal, each flower furnished with a bract and two lateral opposite bracteoles. Calyx superior, 4—5-fid, lobes valvate in bud, deciduous, or persisting with the fruit. Corolla 0, or petals inserted on the calyx, alternate with its lobes, valvate in bud. Stamens inserted with the petals, some- times alternate with them, sometimes double in number, of which the alternate five are inserted higher and opposite to the petals, rarely triple the number ; filaments free, filiform or subulate ; anthers introrse, 2-celled, dehiscing longitudinally. Ovary inferior, 1 -celled, usually crowned with a sometimes rayed or indented disk; style terminal, simple ; stigma undivided ; ovules 2 or 4, rarely 5, pendulous from the top of the cell, with long funicles, anatropous. Fruit a drupe, often longitudinally winged. Seed usually solitary by arrest ; testa membranous, thin ; endopleura swollen, intruded between the folds of the cotyledons. Embryo exalbuminous, straight ; cotyledons foliaceous, rolled into a spiral, or thick, folded lengthwise, or crumpled ; radicle near the hilum, superior. PRINCIPAL GENERA. Conocarpus. Anogeissus. Laguncularia. Lumnitzera. •Quisqualis. *Combretum. Terminalia. Combretaeeet are near Oiuujrarieee, Hnloriiycee, Napoleonea, See. (see these families). The diagnosis principally rests on the 1-celled ovary, 1 1 1. ■ ovules pendulous from the top of the cell, the 1-seeded fruit aud the structure of the seed. All are inter-tropical [or nearly so]. Ihe trees of this family are useful from the hardness and closeness of their wood ; their bark contains astringent prinviph-s, which render it fit for tanning and dyeing. The seed [of Terminalia Chebula\, known medicinally as Myrobalans, which is oily, and much eaten in India, was formerly used as a laxative. [The astringent nuts of T. Chebida make a capital ink with sulphate of iron ; its leaves yield an excellent yellow dye with alum. The seeds of T. angiistifolia, Bellerica , aud Catappa, are likewise much eaten, and yield an excellent bland oil. T. anxjmtifolia produces bv incisions in the hark a white benzoin of agreeable scent, much used ns a cosmetic, and burnt ns an incense in Mauritius. The wood of Conooar pxu lalifolius is reckoned one of the best in India. — Ed.] 422 XCIY. MYRTACEiE. XCIY. MYRTACEAE. (Myrti, Myrte^e, Jussieu . — Myrtoide^e, Ventenat. — Myrtine^e, D.C. — - Myrtace*e, Br.) Myrtle. ( Myrtus communis.) Myrtle. Seed, entire and cut vertically (mag.). Myrtle. Ovary cut transversely (mag.). Myrtle. Vertical section of flower (mag.). Myrtle. Diagram. Beavfortia. Vertical section of pistil (mag.). Myrtle. Pistil, disk and calyx (mag.). Myrtle. Stamen (mag.). Courovpifa surinamensis. Andrcecinm with unequal stamens. Myrtle. Ovary cut vertically (mag.). C. surinamensis. Embryo (/mag.). C. surinamensis. Vertical section of ovary. Beavfortia. Bundle of stamens. XCIV. MYKTACEiE. 423 Fabricia lacigata. Lecythis urnigera. Fruit, J nat. size. Berlhollelia excelsa. Seed, nat. size Fabricia . Fruit. Berlhollelia excclsa. Transrerse section of seed. Eucalyptus Globulus. Section of lower part of ovary (mag.). Eucalyptus. Lower ovule. . Eucalyptus. Flower -bud ent vertically. Eucalyptus Globulus. Section of upper part of ovary (mag.). Eucalyptus. Upper ovule. Calycothrix. Ovules fixed to a basilar filiform placenta (mag.). Caryophyllus. Flower-bud (mag.). Calyx valvate [or imbricate ] in bud. Corolla polypetalous, inserted on the calyx, imbricate in bud. Stamens numerous, inserted ivith the petals. Ovary inferior or semi- inferior, sometimes free, l-several-celled. Fruit a capsule or berry. Embryo exalhuminous. Stem arborescent or suffrutescent, very rarely herbaceous ( Careya ). Leaves opposite, rarely alternate or wliorled, simple, entire or very rarely denticulate, flat or cylindric or semi-cylindric, 3- nerved or penninerved, nerves often marginal, usually coriaceous, very often dotted from pellucid glands sunk in the parenchyma, narrowed into a petiole at the base [or sessile] ; stipules generally 0, rarely geminate at the base of the petioles, minute, caducous. Flowers 5 , regular, very rarely 424 XCIV. MYRTACEHL sub-irregular from tlie unequal length of the stamens, axillary and solitary, or in a spike, cyme, corymb or panicle, sometimes even capitate, naked or involucrate; often 2-bracteolate, white, pink, purplish or yellow, never blue. Calyx superior or semi- superior ; limb 4-5-multi-fid or -partite, persistent or deciduous, valvate in bud ; sometimes entire, closed in bud and falling away like an operculum at the expansion of the flower. Petals inserted on a disk edging the calyx-throat, and usually expanding into a plate or cushion which crowns the top of the ovary, equal in number and alternate with the calyx-lobes, very rarely 0, aestivation imbricate or convolute. Stamens numerous, inserted with the petals, very rarely equal in number and alternate, often double or treble, and then some without anthers, most often indefinite, pluri- seriate, and then usually all fertile ; filaments filiform or linear, free, or more or less monadelphous at the base, or united in bundles opposite to the petals, rarely united into a cup which is abbreviated on one side, and on the other prolonged into a concave petaloid blade which is bent down upon the style and antheriferous within ; anthers small, rounded, introrse, of 2 contiguous or separated cells, opening longitudinally or transversely. Ovary inferior or semi-inferior, covered by a fleshy disk, sometimes free ( Fremya ), either 1-celled with numerous erect anatropous ovules on a basilar placenta, or 2 pluri-celled with numerous anatropous ovules inserted at the inner angle of the cells, or ovules rarely solitary and fixed to the inner angle by their ventral surface ; style terminal or rarely lateral (in the 1- celled ovary), simple, naked or barbed at the top ; stigma undivided. Fruit generally crowned by the calyx-limb, sometimes 1-celled and 1-seeded by arrest, dry, indeliiscent, or quite 2-valved at the top, sometimes 2-many-celled, and then either a capsule opening at the top loculicidally or septicidally or by the removal of the epigynous disk, or an indeliiscent berry with many- (or by arrest 1-) seeded cells. Seeds straight, angular, cylindric or compressed, sometimes dimorphous in each cell, some being turgid and fertile, the others linear and sterile (Eucalyptus, Fabricia) ; testa crustaceous or membranous, winged or furnished with membranous scales at the base [arrested ovules?] ( Spermolepis ). Embryo exalbuminous, straight or curved or rolled spirally ; cotyledons usually short, obtuse, sometimes confluent with one another and with the radicle, very rarely foliaceous ; radicle very often thick, next the liilum. Tribe 1. CHAM2ELA VOIE2E. Stamens often definite, some usually sterile. Ovary 1-celled, with one 6T several basilar ovules. Fruit 1-seeded, indehiscent, or imperfectly 2-valved at the top. — Shi'ubs of Australia, often resembling Heaths, and especially Blaeria. Leaves opposite, or rarely alternate, punctate j stipules 0 or rarely 2 ( Calycothrix ). PRINCIPAL GENERA. * Calycothrix. * Verticordia. Chamaelaucium. Davwinia. Lbotakya. ThryptomefiC, XC1V. MYItTACEiE. 425 Tribe II. LEPT0SPER3IE^J. Stamens very often indefinite, free, or polyadelphous, rarely monadelphous. Ovary 2-many-celled ; ovules numerous, rarely solitary in each cell. Capsule loculicidal or septicidal, rarely indehiscent. Seeds sometimes dimorphous ( Eucalyptus , Fabricia, &c.). — Shrubs or trees, abundant in Australia, less numerous in tropical Asia. Leaves opposite or alternate, exstipulate, entire or rarely denticulate, punctate, sometimes presenting the appearance of pliyllodes. Scholtzia. •Callistemon. ‘Tristauia. ‘Billiottia. PRINCIPAL GENERA. *Ba?ckia. 'Melaleuca. *Metrosideros. •Fabricia. Hypocalymna. ’Beaufortia. Backhousia. Agonis. •Calothamnus Xantliostemon. •Leptospermum. •Eucalyptus. ’Angopbora. Tribe III. MYRTEJE. Stamens indefinite, free. Ovary 2- or more- celled, ovules numerous. Berry 2- or more- celled, cells often 1 -seeded. — Tropical and sub-tropical trees or shrubs. (The common Myrtle is fonud as far as 43° N. lat.) Leaves opposite, entire, punctate, exstipulate. PRINCIPAL GENERA. Cainpomaneria. Psidium. Ehodomyrtus. ‘Myrtus. Rhodamnia. Nelitris. Myreia. Mariiera. * Calyptranthes, Pimenta. ’Eugenia. Caryophyllus. ’Acmenas. 'Jambosa. Tribe IY. BA R RING TONIEJE. Stamens numerous, often monadelphous. Ovary inferior, 2- or more- celled ; ovules definite or numerous. Berry corticate, 1- or more- celled, 1 -few-seeded. — Trees of tropical Asia and America. Leaves alternate, rarely opposite or whorled, exstipulate, eglandular, entire or dentate. GENERA. Barringtonia. Careya. Grias. Planchonia. Gustavia. Tribe V. LECY THIDE2E. Stamens numerous, filaments united into a cup, shortened on one side, pro- longed on the other into a concave petaloid tongue, sterile or antheriferous within. Ovary aeveral-celled ; ovules numerous. Fruit dry or fleshy, indehiscent or opening by the raising of the disk. — Trees of tropical America. Leaves alternate, not punctate, entire or rarely toothed ; stipules 0 or caducous. PRINCIPAL GENERA. Courateri. Couroupita. Bertholletia. Lecythis. [Tribe Napoleone^e : sec p. 426.] 426 XCY. NAPOLEONEvE. Myrtacece are related to Melastomacece, and through these to Onagrariece and Lythrariece (which see). They approach Granatece in the valvate calyx, imbricate corolla, polyandry, inferior ovary with many-ovuled cells, simple style and stigmas, fleshy fruit, exalbuminous embryo, woody stem, and generally opposite leaves ; they differ principally in the ovary, which in Granatece presents two super- imposed rows of cells. Myrtacece are also near Oliniece, as shown by the inferior several-celled ovary, subulate style, fleshy fruit, exalbuminous embryo, woody stem, and opposite coriaceous leaves; but Oliniece are isostemonous, and the ovarian cells are only 3-ovular (which is also the case in some Myrtacece). Points of resemblance have also been traced between certain Myrtacece and the little family of Calycan- thece ; in the numerous stamens, of which some are antherless, inserted on a fleshy ring crowning the calyx-throat, the exalbuminous embryo, woody stem, and generally opposite leaves ; but Calycanthecc are apetalous, their anthers are extrorse, their ovaries are free, and the fruit is composed of achenes. Finally, in the gland-punctate leaves, polypetalous corolla, monadelphous or polyadelphous stamens, and exal- buminous seed of Aurantiece and Hypericinece we find an analogy between these families and Myrtacece. Myrtacece contain tannin, fixed and volatile oils, free acids, mucilage and sugar ; these principles, associated in different proportions, give to some species properties which are useful to man. The Myrtle (Myrtus communis), a shrub of the Mediterranean region, has .astringent berries, and its leaves were formerly renowned for their tonic and stimulating virtues. Eugenia (Caryophyllus) aromatica, a native of the Moluccas, yields cloves, which are the flower-buds, and which contain a very aromatic volatile oil, and are hence universally used as a condiment, in medicine, and as a perfume. The fruit of E. pimenta, a tree of the Antilles, possesses an aroma and taste which combine the qualities of the nutmeg, the cinnamon and clove, whence its name of Allspice. The berries of the Guava ( Psidium ), the Jambosa, and many other species, are much esteemed for their aromatic taste, and are made into preserves. The capsular Myrtacece also contain a volatile oil in their leaves and fruit ; the principal species is the Melaleuca Cajaputi, a shrub of the Moluccas, which yields by distillation a green oil of a mild and pene- trating scent, recalling at once camphor, rose, mint and turpentine, and much esteemed as an anti- spasmodic. The Eucalypti are gigantic trees of Australia, of which the wood is very useful for building purposes (E. robusta, Globulus, &c.). The Couroupita is a large tree, called in Guiana Cannon-hall, on account of the shape and size of its fruit, which contains an acid-sweet pulp, very agreeable and refreshing. The seeds of Bei thollelia cxc. Isa are edible, and are sold in Europe as Brazil-nuts. We may also mention the Sapucaya ( Lecytliis ollaria), a Brazilian tree the capsule of which is woody, very large and thick, and opens circularly by the raising of its epigynous cap-shaped disk. Vases and pots are made of this cap- sule, whence the name of Monkey-pot given to the fruit. [Humboldt describes the fruits of Gustama speciosa as eaten by children, and causing them to turn temporarily yellow. G. brasiliana is an emetic. Bose-apples are the fruits of Eugenia Malaccensis. The fruits of the Chilian E. Ugni are very agreeable. Myrtle buds and berries are still eaten as spice in Italy, and made into wine ; the flowers yield eau d'ange. Various species of Eucalyptus yield a red astringent gum like Kino, and a manna ; one Tasmanian species ( E . Gunnii) is tapped for its juice, which is fermented and drunk. Various Lept.osperma have been used as substitutes for tea by the early settlers in Australia. Lastly, some species of Eucalyptus are the most gigantic of timber trees, attaining nearly 500 feet in height and 110 feet in girth. — Ed.] XCV. N A PC) LEONEAE, 1 Endlicher. Shrubs of tropical Africa. Leaves alternate, exstipulate, entire or unequally 2-3-dentate at the top. Flowers ^ , regular, solitary on axillary peduncles (Asteranthos), or scattered on the branches and sessile ( Napoleona ). Calyx superior, 5-partite ( Napoleona ) or many-toothed ( Asteranthos ). Corolla epigynous, simple, Regarded as a tribe of Myrtacece in the 1 Genera Plantarum.’ — Ed. XCY. NAPOLEONEiE. 427 Napoleona. Fruit cut vertically. Xapoleona. Fruit cut transversely. 428 XCYI. MELASTOMACEiE. rotate ; limb shortly multifid ( Asteranthos ) or double, the outer sub-rotate, plaited, entire, the inner radiating, multifid ( Napoleona ). Stamens inserted at the base of the corolla, 5 petaloid, with 2 anthers [filaments connate in a petaloid cup, bearing many anthers] ( Napoleona ), or [filaments] indefinite, filiform ( Asteranthos ) ; anthers 2-celled, dehiscence longitudinal [Asteranthos) [or 1-celled in Napoleonai] . Ovary inferior [or semi-inferior, 5-6-celled] ; style short ; stigma a depressed head, lobed {Asteranthos) or peltate, angular ( Napoleona ) ; ovules several in each cell, pendulous from the inner angle. Berry crowned by the calyx-limb. Seeds numerous, sunk in the pulp [in Najpoleona ; few, large, angled or reniform, with a membranous testa and large thick cotyledons, between which the radicle is retracted ; — unknown in Asteranthos. — Ed.] . GENERA. Napoleona. Asteranthos. [A very singular family or tribe of Myrtacece, evidently closely allied to Lec.ythis and Bertholletia, with the valvate calyx and alternate leaves of Lythrariece, to which they approach in the crumpled corolla. Napoleona is a native of west tropical Africa, and Asteranthos of North Brazil. Of their properties nothing is known. — Ed.] XCVI. MELASTOMA CEAE. (Melastoma, Jussieu. — Melastomace^e, Br.) Corolla polypetalous, usually cliplostemonous , inserted on the calyx, contorted in bud. Stamens 3-12, inserted with the petals. Ovary free or adherent, of 1-20 many-ovuled cells. Fruit a capsule or berry. Embryo straight or curved, exal- buminous. Stem arborescent or frutescent or suffrutescent, rarely herbaceous, erect, climbing or epiphytal, with cylindric or tetragonal branches swollen at the nodes. Leaves opposite orwhorled, simple, equal or unequal, entire, rarely toothed, usually narrowed into a sometimes swollen petiole ; lateral nerves 2, 4, 6, or 8, nearly as prominent as the median, and directed like it from the base to the top of the leaf, preserving a uniform thickness, and united by finer transverse nerves. Flowers £ , regular, usually in panicled or contracted cymes, rarely solitary, naked, or diversely bracteolate, sometimes furnished with a sort of coloured involucre ( Blahea ). Recep- tacular oup campanulate, urceolate or oblong-tubular, quite free, or adhering to the ovary by longitudinal septa. Calyx-limb 5-6-3-partite, sometimes entire, imbricate or contorted in bud. Petals free, or sometimes slightly united at the base, inserted on the calyx-throat, on a fleshy annular layer, alternate with the calyx-segments, shortly clawed, contorted in bud. Stamens inserted with the petals, usually double (or sometimes multiple) their number, sometimes equal ( Bonerila , Poter- anthera), sometimes all equal and fertile, sometimes those opposite to the petals smallest or sterile, rarely rudimentary or 0 ; filaments free, indexed in bud ; anthers XCVI. MELASTOMACEiE. 429 Mrlastom a cymosu m ( A mph ibletua ) . Melastoma. Flower cut vertically (mag.). Melastoma. Fruit. Xaudin ia. Vertical section of ovary (mag.). Tulasnea. Seed (mag.). Oibeclia. Seed (mag. Melastoma. Ovule (mag.). Melastoma, Stamen (nmg.). Pyramia. Stamen (mag.). Melastoma. Transverse section of ovary (mag.). Spenn era. Stamen (mag.). Huber i a. Stamen (mag.). 430 XCYI. ME L ASTOMACEiE. Kibessia. Flower. Kibessia. Vertical section of androecium and pistil. terminal, 2-celled, pendulous before flowering, and sunk in the spaces separating the ovary from the receptacular cupule, globose, ovoid or elongate ; cells parallel, generally opening at the top (often prolonged into a beak) by a common pore, or by 2 distinct pores, rarely by longitudinal slits ( Kibessia ) ; connective polymorphous, not prolonged below the anther and without appendages (Pyramid,), prolonged below the anther and without appendages ( Spennera ), prolonged below the anther with anterior appendages ( Melastoma ), not prolonged below the anther, but furnished with posterior appendages ( Huberia ). Ovary quite free, adhering to the nerves of thg receptacular cup, or completely adherent ; cells 4-5, rarely 6-20, or one only ( Memecylon ) ; style simple ; stigma undivided ; ovules numerous [rarely few], anatropous or semi-anatropous. Fruit with usually axile placentation, or parietal (Kibessia), or basilar (Naudinia), of 1-20 cells ; sometimes a berry from the development of the receptacular cupule, indehiscent or ruptile ( Astronia ) : sometimes a drupe (Mouriria), sometimes dry and indehiscent, sometimes a loculicidal capsule with semi-septiferous valves, the placentas frequently remaining united into a central column (Melastoma). Seeds numerous, testa crustaceous, dotted or areolate, sometimes reniform or coclileate ; sometimes ovoid, oblong, angular, pyramidal or scobiform (Huberia), rarely margined (Castanella) ; liilum basilar. Embryo exal- buminous, straight or curved ; cotyledons equal, or the outer much the larger in the irregularly formed seeds ; radicle next the liilum. PRINCIPAL GENERA. Blakea. * Medinilla. * Osbeckia. * Melastoma. * Pleroma. Monochaetum. * Rhexia. * Sonerila. * Bertolonia. * Rhyncliautkera. * Ceutradenia. [The following classification of this most extensive order is that of the ‘ Genera Plantarum.’ Sob-order I. M. EL A S TO ME Ml . Ovary 2-co -celled ; ovules numerous, inserted on placentas which project from the inner angle of the cells. Fruit polyspermous. Seeds minute ; embryo very minute. Series I.— Fruit usually capsular. Stamens unequal. Tribe I. Microliciea:. — Connective produced at the base, appendaged iu front. Seeds oblong or ovoid (American). Pyramid, Cambessedesia, Ghcetostoma, Microlic.ia, Lavoisiera, JUkynchaiithera, Centradenia, &c. XCVI. MELASTOMACEiE. 431 Tribe II. Osbeckie.e. — Connective produced at the base. Seeds cochleate (Old and New Worlds). Acisnnthera , Comolia, Pterolepis , Macacria, Pleroma, Brachyota, Chcetolepis i Aciotis, Osbeckia, Tristemna , Melasfoma, Dissotis, &c. Tribe III. Riiexie.e. — Connective hardly produced at the base, spurred posteriorly, not appendaged in front. Seeds cochleate (American). Mouochcetum, Bhexia. Tribe IV. Meriaxie.e. — Connective hardly produced at the base, appendaged or spurred in front, appendage usually erect and inflated. Seeds cuneate, angled or fusiform (American). Axincva, Meriania, Centronia, Graffenriedia , &c. Tribe V. OxvsroREj;. — Connective hardly produced at the base, acute or spurred behind, not appendaged in front. Seeds angled or oblong, raphe usually thickened and produced (Old World). Oxyspora, Allomorplia, Ocldhocliaris, Predict, &c. Tribe VI. Soxerile.e. — Ovary and capsule depressed at the top. Connective simple or appendaged before and behind. Seeds straight or nearly so (Old and New Worlds). Sonerila, Amphiblemma, Bertolonia, Honolena, &c. Series II. — Fruit a berry. Stamens usually equal. Tribe VII. Medinille^. — Anthers usually recurved ; connective appendaged behind, or before and behind. Seeds not cochleate (Old World). Marumia, Dissochoeta, Anplectruvi, Medinilla, Pachycentria, &c. Tribe VIII. Miconie.e. — Anthers incurved or recurved, opening by 1-2 pores or slits ; connective rarely produced or appendaged. Seeds various (American). Oxymerls, Calyco- yiti'uiii, T< tra::ygi'i, Cunosfcgia , Miconia, Tococa, Heterocldtum , Clidemia, Sarjrtea, Belinda, Loreya, Henrieltea, Orscea, Ac. Tribe IX. Brakes. — Anthers large, 1-2-pored ; connective simple or spurred behind. Flowers involucrate. Leaves with strong veins between the ribs (American). BlaJcea, Topobeci. Sub-order II. ASTRONIEJU. Ovary 2-x -celled ; ovules numerous, placentas at the base or on the outer walls of the cells near their base. Seeds minute (Old World). Astronia, Pternandra, Kibessia. Sub-order III. MEMEOYLEJE. Ovary either 1-cclled with the ovules whorled round a central placenta, or several-celled with 2-3 collateral ovules in the inner angles of the cells. Fruit 1-few-seeded. Seeds large (Old and New Worlds). Movrisia, Memecylon. Mela&tomacccc approach Lythrariece in the valvate calyx, insertion of the petals, diplostemony, several many-ovuled ovarian cells, exalbuminous embryo, opposite or whorled leaves, and especially in the singular structure of the stamens. There is also a real affinity between them and Myrtacece ; in b >th thr petals are inserted on the calyx, the ovary has several many-ovuled cells, the style is simple, the embryo is exalbuminous, the leaves opposite, sometimes even 3-nerved ( Rhoclomyrlus ), and the stem woody; but Myrtacece are generally sweet-scented, and have punctate leaves; their anthers are short, rounded, deprived of appendages, and the petals imbricate in bud. Melaetomaccce mostly grow in tropical America; a few advance into North America to 40° {Bhexia). None have yet been found in Chili, a few inhabit Asia and Africa. The leaves of Milmtomacece are astringent, and of many species slightly acid. The berries also 432 XCVII. LYTHRARIEiE. contain free acids united to a certain quantity of sugar, whence result various medicinal properties ; some possess a small quantity of volatile oil or balsamic resin, which renders them stimulating. The bark, the fruit, and especially the leaves of some others contain colouring principles. [The berries of Melcistoma are edible, but dye the mouth black, whence the name ( Melastoma ) ; others yield yellow, black and red dyes. — Ed.] XCVII. LYTHRABIEIE. {Salicarihs, Lythrarie^e, Jussieu . — Calycanthemhs, Yentenat. — Lythrace^e, Lindl.) Lylhrum Salicaria. Calyx free. Corolla polypetalous, perigynous, iso- diplo- or triplo-stemonous, imbricate in bud, rarely 0. Stamens inserted on the calyx-tube. Ovary with 2 or several many-ovuled cells. Embryo exalbuminous. Herbs, shrubs or trees. Leaves opposite or wliorled, rarely opposite and alternate on the same plant, simple, penninerved, entire, petioled or sessile, sometimes punctate- XCVII. LYTHRARIEiE. 433 glandular, always exstipulate. Flowers ?, regular, or rarely irregular ( Cuphea ), solitary in the axil of the leaves, or fascicled or cyinose, sometimes spiked or racemed, and accompanied by floral bracteiform leaves, rarely panicled, peduncle and pedicels 2-bracteolate at the base, middle or top. Calyx free, persistent, tubular or campanulate, rarely urceolate, 3-many-toothed ; tube usually ribbed with nerves, straight or rarely oblique, or gibbous or sub-spurred at the base {Cuphea) ; limb more or less deeply toothed, teeth sometimes 1-seriate, equal, valvate in bud, sometimes 2-seriate ; the outer alternate, narrower, incumbent on the commissure of the valvate inner ones. Petals (rai-ely 0, Peplis, Abatia, &c.) inserted on the top of the calyx-throat, equal in number and alternate with its inner teeth, sessile or clawed, obovate or ovate or oblong, equal, or the dorsal veiy rarely larger, imbricate in bud, often folded, waved on the edges ( Lagerstroemia ), spreading- after flowering, deciduous or fugacious ( Sujfrenia , Peplis). Stamens inserted on the calyx-tube above its base, continuous with its nerves, equal in number and alternate with the petals, very rai-ely less numerous ( Snjfrenia ), very often double or triple ( Dodecas , Antherylium, Lagerstroemia), 1 -several-seriate, included or exserted, equal or unequal, all fertile, or rarely some sterile ; filaments filiform, free ; anthers introrsc, 2-celled, orbicular or ovoid or oblong, erect or incumbent, dorsifixed, dehis- cence longitudinal. Ovary free, sessile or shortly stipitate, rarely girt at the base with a fleshy ring, or accompanied by a unilateral gland {Cupliea), 2-6-celled, some- times sub-l-eelled by failure of the septa { Diplusodon ), or completely 1-celled with parietal placentation {Cnjptotheca) ; placentas attached to the middle of the septum, or the inner angle of the cells, or uniting the base of the semi-septa; style terminal, simple, more or less long; stigma simple, obtuse or capitate, rarely emarginate or bilobed ; ovules usually numerous, ascending or horizontal, anatropous. Capsule membranous, or rai-ely coriaceous, woody, crowned by the persistent or accrescent calyx, 2-several- (rarely 1-) celled, bursting irregularly or by circumsciss, or by regular semi-septiferous valves, the placentas remaining united in a free column. Seeds usually numerous, ovoid-angular, cuneiform, piano-compressed, or edged with a membrane {Lagerstroemia) ; testa coriaceous; hilum marginal or basilar. Embryo exalbuminous, straight ; cotyledons sub-orbicular, plano-convex, 2-auricled at the base, rarely semi-cylindric or convolute ; radicle short, near the hilum. [Classification of Lythrariew, from the ‘Genera Plantarum ’ : — Tint I. Ammanxik.e. — Hei-bs, often aquatic. Calyx membranous, not ribbed or striate. Flowers small o>- minute. Petals flat or 0. Ammannia , ( Svffrenia ), Peplis, &c. Tribe II. Lytiirk.e. — Shrubs or trees, more rarely herbs. Calyx coriaceous or herbaceous, ' usually costate or striab . Flowers rarely small. Petals usually crumpled. Adenaria, Grislea, IF If not in, Cuphea, Lythrum, Xestva, Pemphis, Diplusodon, Lafcensia, Lawsonia, Crypteronia, Lagerstreemia, >S n Herat ia. Av'M.u.oi s Gin ira. — rim lea (see Order Granateu', p. 435), Olinia (see Order Oliniece, p. 434), Axinandra, Heteropyxis. — Ed.] F F 434 XCVIII. OLINJEiE. Lythrariece are near Onngrariece , Melastoniacece and Saxifragece (see these families). They also approach Rhizophorece in their persistent valvate calyx, stamens more numerous than the petals, many -celled ovary, and straight exalbuminous embryo; but Rhizophorece have an inferior or semi-inferior ovary, the cells of which only contain two pendulous ovules [often more, see this order, p. 419], Lythrariece are chiefly tropical American ; they are much more rare in the temperate regions of both hemispheres. The species of this family possess different properties ; some ( Lythrum Salic aria) contain tannin, which renders them astringent; others (Heimia, Cupliea) secrete resinous and acrid principles, which caused them to be used as purgatives, emetics or diuretics. Lawsonia alba (Henna), an Egyptian shrub, is re- nowned throughout the East for the perfume of its flowers, and for the orange-red colouring matter contained in its leaves, with which the women dye their nails and hair; its root (Alkanna) is astringent and yields a red dye. [The Ammannia vesicatoria, an Indian weed, is a strong vesicant. Pemphis acidula is used as a pot-herb in tropical Asia. The flowers of Woodfordia tomentosa, the Dhak of India, are much used as a red dye. The Lagerstrcemias produce excellent timber, called Jarul in India. The wood of Sonneratia acida is considered the best substitute for coal on the Indus steamers. — Ed.] Shrubs of South Africa, Brazil,1 and Australia.2 Leaves opposite, coriaceous, penninerved, entire, not dotted, exstipulate. Flowers axillary or terminal, in small cymes, or solitary, bibracteolate at the base. Calyx 5-4-toothed, or 4-fid or 5-partite. Petals 5-4, inserted on the calyx, alternate with its segments, oblong or obovate, obtuse, sometimes ( Olinia ) with 5-4 scales alternate with the petals, scales pubescent on the back and conuivent. Stamens 5-4-co , inserted with the petals ; filaments flexuous in bud ; anthers 2-celled, globose-didymous or oblong, dehiscence longitudinal. Ovary inferior, 2-4-5-celled, cells 2-3-co -ovuled ; style subulate or flexuous ; stigma simple ; ovules pendulous, anatropous. Fruit a berry [Myrrhinium, Fenzlia ) or drupe ( Olinia ) crowned by the calyx-limb or by its scar ; kernel woody, 3-4-celled. Seeds oval. Embryo exalbuminous, rolled in a spiral, or arched ; cotyledons indistinct. 1 The Brazilian plant here alluded to, Myrrhinium , 2 The Australian Fenzlia is also Myrtaceous, and is unquestionably Myrtaceous, and closely .allied to near Myrtus itself. — Ed. Pimcnta, — Ed. XCVIII. OLINIEaE, Arnott. Olinia. Flo act (mag.). Olinia. Pendent anatropous ovule (mag.). Olinia. Diagram. Olinia. Fruit (mag.). vertically (mag.). XCIX. GRANATEiE. 435 Tbo little group of Oliniccr, composed of the genera Olinia, Myrrhinium, and Fenzlia , is placed between Mi/rteiceee and Mdadomaeeec. The berries of Myrrhinium atropurpurmm, [a Brazilian shrub,] are edible. XCIX. GRAN ATE JE,1 Endlicher. Pomegranate (Tunica Granalum). Pomegranate. Seed entire and cut vertically (mag.). Pomegranate. Transverse section of upiier chamber of fruit. .0) jjlily 1|P J Pomegranate. Transverse section of lower chandler of fruit. Pomegranate. Stamens. Pomegranate. Seed cut transversely (mag.). Stem woody, branches sometimes spinescent. Leaves generally opposite, often fascicled, entire, not punctate, glabrous, exstipulate. Flowers 2 , terminal, soli- tary or aggregate. Calyx coloured ; limb many-partite, many-seriate, valvate in bud. Petals 5 7, inserted on the calyx-throat, alternate with the sepals, imbricate in bud. Stamens numerous, many-seriate, inserted below the petals, and included ; filaments filiform, free; anthers introrse, 2-celled, ovoid, dorsifixed, dehiscence 1 See cud of Lythrarieer, p. 433. — Ed. r f 2 43G C. ONAGRARIEiE. longitudinal. Ovary adhering to the receptacular cup (calyx-tube), forming 2 superimposed rows, tlie lower 3-celled witli central placentation, the upper 5-7-celled with parietal placentation ; style filiform, simple ; stigma capitate ; ovules numerous, anatropous. Berry spherical, crowned by the calyx-limb, cells separated by membranous septa. Seeds numerous, integument full of an acid pellucid pulp. Embryo exalbuminous, straight ; cotyledons foliaceous, convolute ; radicle oblong, short, pointed. ONLY GENUS. Punica. The fruit of the Pomegranate is probably monstrous, and analogous to certain fruits singularly modified by cultivation, as the Tomato ( Lycopersicum esculentum), and that variety of Orange called ‘ Bizarrerie ’ or ‘ Mellarose.’ [The Pomegranate is indigenous in Upper India, where its fruit altogether resembles that of the cultivated state. — Ed.] The genus Punica is very near Mijrtacea (see that family). The single species of which it is com- posed ( P, ; G-ranatum ) is a native of Mauritania,1 whence its name of Punica. It grows all along the shores of the Mediterranean, and extends thence throughout the temperate regions of the world ; its fruit (Pomegranate) is covered with a coriaceous bark, called ‘ malicor,’ very rich in tannin, and used by curriers; its pulpy seeds are refreshing. Its flowers, called Bctlaivstium , were formerly administered as a vermifuge ; but its anthelminthic properties principally exist in the bark of its root. This bark contains an astringent substance, with a mild and an acrid principle, which latter destroys tapeworm. C. ON A GRARIEsE. (Epiloeiace^e, Ventenat.— Onagrace.®, Lindl. — Onagre.®, Spach. — (Enothere^E, Endl.) Corolla polypetalous, epigynous, contorted in bud. Stamens inserted with the petals, equal or double them in number, rarely fewer. Ovary inferior , many-celled, many- [rarely few-) ovuled. Embryo exalbuminous. Terrestrial or aquatic herbs, or shrubs. Leaves opposite or alternate, simple, penninerved, entire or toothed, exstipulate. Flowers 9 , usually regular, often fugacious, axillary and solitary, or racemed or spiked. Calyx herbaceous or coloured ; limb 4- (rarely 3-2-) partite, persistent or deciduous, valvate in bud. Petals (very rarely 0) inserted on the top of the calyx-throat, on an epigynous, flat or annular glandular disk, alternate with the calyx-segments, more or less distinctly clawed, sometimes emarginate or bifid, contorted in bud. Stamens inserted with the petals, either equal in number and alternate, or double and 1-2- seriate, rarely fewer ; filaments filiform or subulate, free ; anthers 2-celled, introrse, dehiscence longitudinal ; pollen of trigonous granules, often cohering by threads. Ovary inferior, often crowned by the glandular edge of the disk, usually 4- (rarely 2-) celled ; style filiform ; stigmas as many as cells, linear, papillose on their inner 1 A. de Candolle (‘ Geographie Botanique,’ ii. 891) Africa only in a cultivated state. It ranges ill a wild rightly points out that the Pomegranate exists in North state from Asia Minor to the Punjab Himalaya. — Ed. C. ONAGRARIEJE. 43? Epilobium ) urmtum . Epilobium. Epilobium. Pistil (mag.). Vertical section of flower \ mag. hnaf dkt palustra. JEjnhlrium. Young seed (mag.). Epi'.obium . Fruit, 438 C. ONAGRARIEJE. Fuchsia globosor. Circcea. Stamen Jussieua ovalifolta. (mag.). Circcea lutetiana. Circcea. Diagram. Circcea. Transverse section of fruit (mag.). Circcea . Flower (mag.). Circcea. Vertical section of flower (mag.). Circcea. Flower without its corolla (mag.). Circcea. Vertical section of fruit (mag.). surface, rarely coherent ; ovules numerous in the cells, inserted at the inner angle, rarely few, ascending or pendulous, anatropous. Fruit generally a capsule, some- times a berry [Fuchsia), rarely nut-like ( Gaura ) ; capsule 4-2-celled, sometimes 1- celled by obliteration of the septa, loculicidal (( Fnothera ), or septicidal ( Jussieua , Isnardia), with semi-septiferous valves, or having the seeds on a free columella. Seeds numerous, rarely few or solitary, ascending or pendulous ; testa crustaceous or membranous, sometimes winged ( Montinia ), sometimes fringed ( Godetia , Clarlcia), Cl. TRAPES. 439 or hairy at the chalaza ( Epilobium ). Embryo exalbumi nous, straight ; cotyledons foliaceous or a little fleshy, often auricled at the base; radicle conical, cylindric, near the hilmn, superior or inferior, rarely centripetal. PRINCIPAL GENERA. • Jussieua. Ludwigia. * Clarkia. * (Enothera. * Lopezia. * Godetia. * Eucharidium. Isnardia. Circaea. *Gaura. [Trapa.1] ANOMALOUS GENUS. Montinia. Onagrariece are connected with Haloragecc, Trapeat and Combrctacecc by the valvate calyx, the iso- or diplo-stemonous corolla and the inferior ovary; but llaloragea: differ in their albuminous embryo, Trapece in the imbricate aestivation of their corolla, and Combretacece in their 1-celled ovary. Lythraruxe have some affinity with Onngrariea ; in both families the calyx is valvate, the corolla iso- or diplo-stemonous, the ovarian cells many-ovuled, the style simple, the fruit a capsule, and the embryo straight and exalbuminous ; but Lythrariece have a free ovary and imbricate petals. Onagrariece are widely diffused ; but chiefly in the extra-tropical temperate regions of the northern hemisphere, and especially of the New World. Fuchsia extends from Mexico to the Straits of Magellan and New Zealand. Many Epilohia are found iu the southern hemisphere [they are characteristic of the herba- ceous vegetation of New Zealand]. On(iyrai-U'fc contain mucous and sometimes slightly astringent principles, and for this reason Circcea luhtiaua and the narrow-leaved Epilohia are used in some countries, especially externally; in Sweden they eat the young shoots of the latter. Several (Euotheras, and especially (E. biennis, have a sweet and edible root. Fuchsia e.rcorticata has poisonous berries [P]. [Those of other species are sweet and edible. Montinia , a Cape genus, is said to be acrid.- Ed.] * Epilobium. * Fuchsia. * Zauschneria. CL TRAPEsE; Endlicher. Lacustrine floating herbs. Leaves, some submerged, others emerged : the submerged opposite, pinnatisect (like rootlets), the upper alternate; the emerged in a rosette, petioled, rhomboid ; petiole vesicular during flowering, exstipulate. Flowers axillary, solitary, shortly peduncled. Calyx 4-partite, valvate in bud, with spiny lobes. Petals 4, inserted on an annular fleshy sinuous disk, crowning the top of the ovary, alternate with the calyx-segments, imbricate in bud, edges folded. Stamens 4, inserted with the petals, the alternate shorter; filaments filiform-subulate ; anthers introrse, 2-celled, dorsifixed, dehiscence longitudinal. Ovary semi- inferior, of two 1-ovuled cells; style cylindric, simple ; stigma flattened, obtuse; ovules pendulous from the top of the septum, anatropous, raphe dorsal. Fruit coriaceous [or woody], indehiscent, crowned by the spinescent calyx-limb, which resembles 2-4 horns, capped by the hardened disk, 1-celled and 1-seeded from arrest. Seed inverted; testa membranous, adherent, the upper part spongy. Embryo exalbuminous, straight ; cotyledons very unequal, one very large, thick, and farinaceous, the other minute, squamiform, inserted a little lower ; radicle slightly 1 Sec order Trapes, p. 439. — Ep. * See also under Onagrarica, p. 439. — Ed. 440 CI. TRAPEiE. Trapa. Pistil (mag.). Trapa natans. Trapa. Embryo (mag.). Trapa. Pistil cut vertically (mag.). H Trapa. Style and stigma (mag.). Trapa. Introrse stamen, ventral and dorsal face (mag.). Trapa. Ovule (mag.). Trapa. Trapa. Diagram. Tt apa natans , with itsr fruit. CII. SAMYDACEiE. 441 Trapa. Young fruit (mag.). Trapa. Ripe fruit (mug.). Trapa. Petal (mag.). bent, superior, piercing tlie top of the fruit in germination ; plumule very small, concealed within the small cotyledon. ONLY GENUS. Trapa. Trajxa are closely related to Haloragea (see this family). T. natans, the Water Chestnut or Calthrop, inhabits stagnant water in Central and Southern Europe. Its seeds afford a farinaceous food, ns do those of the Kashmirian T. bispinosa, and the Chinese T. bicun us, called by the natives Ling or Ki-chi. CII. SAMYDACEAE.' (HoMALINE^E, findl.) [Trees or shrubs, glabrous, or pubescent or tomentose. Leaves petioled, simple, alternate, distichous, quite entire or serrate, teeth sometimes gland-tipped ; stipules email, usually' deciduous or 0. Flowers $ , regular, inconspicuous, racemed, fascicled or panicled, pedicels articulated and 2-bracteolate. Calyx coriaceous, per- sistent, tube usually free ; lobes 3-7, imbricate or valvate. Petals as many as the calyx-lobes, and like them, rarely more or 0, perigynous, imbricate in bud. Disk cupular, annular or glandular. Stamens definite or indefinite, l-oo -seriate, usually alternating with staminodes, equidistant or collected in fascicles ; filaments filiform or capillary, free or connate ; anthers didymous or oblong, introrse or extrorse, dehiscence longitudinal. Ovary free, rarely adnate to the calyx-tube, sessile, 1- celled ; style long or short, rarely 3 ; stigma entire or 3-fid ; ovules few or many, inserted on 3-5 parietal placentas, sometimes confined to the upper part of the cell, pendulous or ascending, anatropous, raphe lateral or ventral. Fruit indehiscent or capsular, 1-celled, l-» -seeded, 3-5-valved at the top or throughout its length, valves alternating with the placentas. Seeds usually' few by arrest, oblong 01- angled, ascending or pendulous, outer coat thin and fleshy or a torn ai-il ; testa crustaceous or coriaceous, striate or rugose ; albumen copious, fleshy. Embryo axile ; cotyledons oblong or orbicular or cordate, often foliaceous ; radicle short or long. 1 This order is merely ulluded to in the original regarded as a tribe, connecting Bixincte with Pa.si- work at the end of Bixincte (p. 247), to which it is florcte. — Ei>. uuot closely allied, and of which it is perhaps best 442 CIII. LOASEiE. Tribe I. Casearie®. — Leaves alternate. Calyx free, 4-5-merous. Petals 0. Stamens 6-30, inserted in one series within the calyx-tube, usually alternating with as many staminodes. Casearia, Lunaria, Samycla, &c. Tribe II. Banare®. — Leaves alternate. Calyx free, 4-5-merous. Petals 4-5, or more. Stamens many, inserted in many series on a perigynous disk. Banara, Kuhlia, &c. Tribe III. Abatie®. — Leaves opposite, sub-opposite, or whorled. Calyx 4-partite, valvate. Petals 0. Stamens 8 or indefinite, 1- or many-seriate, staminodes 0. Abatia, Ralei.ghia, Aphoerema. Tribe IY. Homalie®. — Leaves alternate, rarely sub-opposite or whorled. Calyx free or adnate to the ovary, 4-15-merous. Petals 4—15. Stamens as many as and opposite to the petals, or if more, in bundles opposite to the petals, and alternating with glands. Homalium , Byrsanthu-s, &c. A small order intermediate between Passifiorea and Bixinece, differing from the former in habit and the want of a corona, and from the latter in perigynism : it is also near Violaricce aud Canellacecc. The species are few, wholly tropical, and found in both the Eastern and Western hemispheres. The general properties of the order are astringent, but none are of any known value ; some are bitter, others mucilaginous, and others again are said to be acrid.— Ed.] [For illustrations, see p. 247.] CIII. LOASEaE. (Loase^e, Jussieu. — Loase,® ver.e, Kunth.— Loasaceai, Linil.) Corolla polypetalous, epigynous, anisostemonous , valvate or imbricate in bud. Stamens more numerous than the petals , rarely all fertile , the outer usually fertile and united in bundles, the inner sterile. Ovary inferior, 1 -celled, placentation parietal. Ovules pendulous, anatropous. Fruit a capsule. Embryo albuminous. Radicle superior. Erect or climbing herbs, often dichotomous, usually covered with stiff often hooked stinging bristles. Leaves opposite or alternate, simple, usually palmilobed, exstipulate. Flowers 3 , regular, solitary or aggregated, on 2-bracteolate pedun- cles, axillary or terminal, or leaf-opposed from the elongation of the axillary branch. Calyx superior, 4-5-partite, lobes usually 3-nerved, imbricate or valvate in bud. Petals deciduous, inserted on the calyx, rarely equal to its lobes in number, and alternate with them, often double in number, of which the 4-5 outer are alternate with these same lobes, and induplicate-valvate or imbricate in bud, and as many inner opposite to the calyx-lobes, smaller than the outer, sometimes antheriferous, generally squamiform, dorsally naked, or awned below the top. Stamens inserted with the petals, double in number or indefinite, rarely all fertile ; the outer usually fertile, various in number, grouped in bundles before the largest petals, the inner sterile, differently shaped, in groups of fours, opposite to the smallest petals ; fila- ments filiform or subulate, free or united in bundles ; anthers introrse, 2-celled, dorsifixed, dehiscence longitudinal. Ovary inferior, 1 -celled, with 3-5-4 parietal CIII. LOASEiE. 443 Ctyophora lateritia . Cajophova. Transverse section of ovary (mag.). Cajophora. Seed, entire and cut vertically (mag.). Loasa. Diagram. Afentzelia. Seed, entire and cut vertically (mag.). Loasa. Stamen before fertilization (mag.). Loasa, Stamen after fertilization (mag.). Loasa. Inner petal (mag.). MnUIrha. Diagram. Mmtzelia. Men lie! ia. Fruit (mug.). Dart of ovary cut vertically (mag.). ifenlzeUa. Transverse section of ovary (mag.). 444 .CIII. LOASEiE. placentas ; style simple, filiform or trigonous ; stigma undivided or 3-4- fid ; ovules usually numer- ous, pendulous, anatropous. Capsule contorted or cylindric, tunicate by the receptacular cupule (often foliiferous), which some- times only adheres by its nerves, and crowned by the calyx, rarely fleshy and indehiscent, usually opening at the top, or throughout its length by 3-5 valves alternating with the placentas, which adhere to it, or finally separate, and represent alternate valves narrower than the true ones, and semi-semi- niferous. Seeds usually numerous, pendulous, funicles short ; testa loose, reticulate ; endopleura membranous. Embryo straight, in the axis of a fleshy albumen, and nearly equalling it in length ; cotyledons flat, small ; radicle cylindric, longer than the cotyledons, superior. PRINCIPAL GENERA. * Mentzelia. * Bartonia. * Loasa, Cajopliora. [Gronovia]. Loasece approach Passiflorece (see this family). Like Cucurbitacece, they are generally climbers, with palmilobed leaves ; their ovary is inferior and one-celled, with parietal placentation ; the ovules are numerous and anatropous ; but Cucurbitacece have definite stamens, extrorse and usually syngenesiotis anthers, diclinous (flowers, tendrils, an exalbuminous embryo and corolla, imbricate in bud. The same affinity^ exists between Loasece and Gronoviece,'1 which again are separated by their pentandrous andrcecium [ Cevallia and other Loasece are pentandrous], the fleshy ring crowning the ovary, their dry fruit, which is a nucule, and their exalbuminous seed. Loasece have also an affinity with Turneracece , in the con- torted aestivation, one-celled ovary, parietal placentation, numerous anatropous ovules, capsular fruit, and straight albuminous axile embryo ; but in Turneracece the ovary is free, the .stamens definite, the valves of the capsule are semi-placentiferous, and the stem is erect. Loasece are all American, except the genus Fissenia, which is African. Most- of them grow on the slopes of the Cordilleras facing the Pacific Ocean, beyond the equator, but not in cold regions. The species are little used, excepting Mentzelia Idspida, which is a strong purgative, and employed by the Mexicans in syphilitic affections. 1 Gronoviece , alluded to in this work under Cucurbitacece, consists of one genus, which undoubtedly belongs to Loasece, with the habit of Cucurbitacece. — Ed. CIV. TURNERACE.E. 445 CIV. TURN ERA CEJE. (Loasearum sectio, Kunth. — Turnerace^e, D.C .) Turnera sal ici folia. Turnery. Transverse section of ovary (mag.). Turner a. Fruit (mag.). Tt/rnera. Pistil (mag.). Corolla polypetalous, penjynous, isostemonous, contorted Tun, era. in bud. Stamens 5, gub-hypogynous. Ovary free, \ -celled, - with 3 parietal placentas. Capsule with 3 semi-seminiferous valves. Seeds straphiolate. Embryo albuminous. Herbs, or undershrubs, or shrubs, chiefly of tropical America, with simple rarely stellate hairs. Leaves alternate, simple, petioled, entire or toothed, rarely pinnatifid, exstipu- late, but often furnished at the base with 2 lateral glands. Flowers 3, regular, axillary, sessile or peduncled; peduncle free or aduate to the petiole, simple, 2-bracteolate, or jointed below the middle and ebracteate, very rarely branch- ing and many-flowered. Calyx coloured, deciduous, 5-fid, imbricate in bud. Petals 5, inserted near the base or in the thre at of the calyx, alternate with its (mag ). 446 CY. PASSIFLOKEiE. lobes, shortly clawed, equal, contorted in bud, deciduous. Stamens 5, inserted at the bottom of the calyx-tube and opposite to its lobes ; filaments free, piano- subulate ; anthers introrse, 2-celled, erect, dehiscence longitudinal. Ovary free, 1-celled, with 3 nerviform placentas alternating with the sutures of the carpels ; styles 3, terminal, opposite to the placentas ; stigmas 3 or 6, fan-shaped ; ovules numerous, ascending, anatropous. Capsule with 3 semi-placentiferous valves. Seeds numerous, 2-seriate, ascending, cylindric, curved ; testa crustaceous ; liilum basilar; raphe filiform; chalaza projecting; strophiolus membranous, appressed to the base of the seed on the side of the raphe. Embryo straight, in the axis of a fleshy albumen ; cotyledons sub-elliptic, plano-convex ; radicle reaching to the hilum, inferior. GENERA. * Turnera. Erblichia. Wormskioldia. This small family is near Loasere (which see). It has many affinities with Mtdesherbiacecc ; but these differ in their stamens, which are hypogynous as in Passiflorece, their dorsal styles alternating with the placentas, their undivided stigmas, and their non-stropbiolate aud pendulous seeds. \Twncra is a large American genus with one Cape species ; Erblichia is also American, and Wormskioldia Asiatic.] Tnrneracece possess little-used tonic properties, due to astringent and mucous principles, with a small quantity of volatile oil. CV. PA SSJFL ORE PE, Jussieu. Perianth free, pctaloid. Stamens sometimes inserted at the base, or on the throat of the perianth, sometimes hypogynous, united with the gynophore. Ovary usually Passion-flower. ( Passijlova ccerulea.) CV. PASSIFLORE/E. 447 Pau flora. Diagram. Passflora. Seed with its aril (mag.). l'ass flora. Seed without aril (mag.). Pass flora. Embryo (mag.). Passflora . Transverse section of ovary (mag.). Passflora. Vertical section of flower. Passflora. Tran>verse section of seed (mag.). Passflora. Vertical section of ovary (mag.). Passflora. Fruit. 8tipitate, with 3-5 parietal placentas. Fruit a berry or capsule. Embryo albu- rn ino us. — Leaves alter u a te. Stem herbaceous or woody, generally climbing, very rarely arborescent ( Ryania , Smeathmannia). Leaves alternate, sometimes simple, entire, lobed or palmate, some- times compound, imparipinnate ; stipules geminate at the base of the petioles, rarely 0 ; tendrils axillary, arising from sterile pedicels. Flowers $ , or imperfect through arrest, regular; peduncles usually 1 -flowered, jointed at the flower, and [usually] furnished at the joint with a 3-pliyllous or -partite involucel. Perianth petaloid, monophyllous ; tube urceolate or tubular, sometimes very short ; limb 4-5-partite or 8-10-partite and 2-seriate, the outer segments sometimes herbaceous, equivalent to a calyx,* the inner more coloured, equivalent to a corolla; throat usually crowned by one or many series of subulate filaments ; yynophore cylindric, more or less elon- gating, supporting the pistil and stamens. Stamens usually equal in number to the [inner] perianth-segments, and opposite to them, or very rarely alternate, some- times double the number, inserted either at the bottom of the perianth, or at the base or top of the gynophore ; filaments subulate or filiform, free or monadelplious and 448 CY. PASSIFLOREiE. sheatliing' the gynophore ; anthers introrse, 2-celled, usually versatile, dehiscence longitudinal. Ovary more or less stipitate, very rarely sessile, 1-celled ; styles equal in number to the placentas, cohering at the base, distinct at the top, . „ Male.'herbia, Flower (mag.). Malesherbia . Diagram. Maleslierbia. Malesherbia. Maleshevbia. Ovule (mag.). One sepal and two petals (mag.). Andrcecium and pistil. spreading ; sticjmas clavate or .peltate, some- times sub-2-lobed ; ovules numerous, ana- tropous, 1-2-seriate, attached to 8-5 parietal linear placentas by longer or shorter funicles, enlarged into a cupule at the umbilicus. Frttit 1-celled, an indehiscent herrv, or a maa'sneruia. # J 7 Transverse section of capsule with 3-5 semi-placentiferous valves. ovary (mag.). A L Seeds numerous ; funicle dilated into a pulpy cupuliform or saccate aril ; testa crustaceous, foveolate, easily separable from the membranous endopleura, which bears a longitudinal raphe. Embryo straight, occupying the axis of a fleshy dotted albumen ; cotyledons foliaceous, flat; radicle cylindric, near the hilum, centrifugal. Malesherbia. Seed, entire and cut vertically (mag.). [The following is the classification of Passifloreoe made for the ‘ Genera Plan- tarum ’ : — Tribe I. Malesherbiey.. — Flowers § • Calyx-tube elongate, lobes triangular-subulate. Corona and corolla membranous. Stamens 5, adnate to the gynophore. Styles 3, remote at the base. Seeds oblong. (South America.) Malesherbia, Gynopleura. Tribe II. Passiflore/B. — Flowers ^ • Corona simple or double. Petals herbaceous. Styles 1 or 3-5, connate at the base. Seeds flattish. *Passiflora, *Tacsonia, Paropsia, Smeathmannia, &c. Tribe III. Modecces. — Flowers £ , or if unisexual perianths of the sexes alike. Corona small or 0. Petals usually included in the calyx-tube. Connective of the anthers usually produced. (Old World.) *Modecca, Ophiocaulon, Machadoa. Tribe IV. Ascharieje. — Flowers unisexual, perianth of the sexes alike. Calyx very short. Coi’olla campanulate, 3-5-fid. Stamens inserted on the throat or base of the corolla. (South Africa.) Oeratosicyos, Ascharia. Tribe V. Papayacf.a:.1— Flowers unisexual, or § and unisexual in the same infloi’escence, perianths of the sexes dissimilar. Coroua 0. Stamens 2— seriate, inserted on the corolla-tube. Carica, Jacaratia.~\ 1 See end of Cucurbitacete, p. 452. — Ed. CVI. CUCURBITACEiE. 449 A. L. de Jussieu placed Passijtorece in the family of Cucurbit aceee, which they approach in their climbing stem furnished with tendrils, their alternate palminerved leaves, double perianth, and one-celled ovary with parietal placentatiou ; in addition to which some genera are diclinous ( Modecca ) ; but in Cucurbit acete the ovary is inferior, the anthers are extrorse, usually reduced to three, and syngenesious, the embryo is exalbuminous, the leaves exstipulate, and the tendrils are leaves arising from a branch joined to the stem, arrested near the point of departure, and merged in the petiole of the leaf which it bears. Some Loascce have, like Passi/torea, a climbing stem, palminerved leaves, a one-celled ovary with parietal placentation, numerous pendulous and anatropous ovules, the fruit a capsule or berry, and a straight axile albuminous embryo ; but they want stipules aud tendrils, and the placentas occupy the interspaces and not the middle of the valves of the fruit. Passijbrca; have an affinity with Homalineee,1 founded on the 2-seriate perianth, the 1-celled ovary, parietal placentation, styles equalling the placentas in number, the berry or capsule, albuminous seed, and the alternate stipulate leaves ; but in Homalineee the ovary is usually inferior, and the stamens inserted high up the calyx-tube ; Papayacece also approach Passiflorece in their palminerved leaves, their free usually 1-celled ovary with parietal placentation, their fleshy fruit, and their arillate seeds; but they are separated by being diclinous [Tribes Modecceee and Achariece are both diclinous], by the insertion of the stamens, the radiating sub-sessile stigma, &c. Patsifloreee mostly inhabit the tropical regions of the New World ; they are much rarer iu Asia, Australia, and tropical Africa, where we find Smeatlimannia , a shrub without tendrils. The pulpy aril of Passiflorece and Tacsonia is used in America in the preparation of cooling drinks. The flowers and fruits of Passiflora rubra [called Dutchman’s Laudanum] are prescribed in the Antilles for their narcotic properties. P. quadrangidaris (the Grenadilla) is valued, like the allied species, for the refreshing pulp of its seeds, but its root is very poisonous; if administered in a small dose it is a vermifuge, like many of the other species. The Fa paw is the insipid berry of Carica, the juice of whose fruit is a powerful vermifuge and anti- septic, and contains fibrine, a substance otherwise supposed to be peculiar to the Animal Kingdom. The whole tree has the singular property of rendering tough meat tender by separating the muscular fibres; its roots smell like decaying radishes, and its leaves are used as a soap by negros. The juice of the Brazilian C. digitata is a deadly poison. — En.] CVI. CUCURBITACEaE, Jussieu. Flowers monoecious, dioecious, or polygamous. Corolla 5 -merous, imbricate. Stamens 5—3, of which one is usually 1-celled. Ovary inferior, 1 -several-celled, 1- many-ovuled. Fruit a berry. Seeds exalbuminous. Embryo straight. — Stem fur- nished with tendrils. Leaves alternate. Annual or perennial herbs or undershrubs with fibrous or often tuberous roots. Stem cylindric or angular, climbing, juice watery. Leaves alternate, petioled, palminerved, often palmilobed, usually cordate ; tendrils simple or branching, springing singly in the same plane with the leaves. Flowers monoecious or dioecious, very rarely $ , axillary, solitary fascicled racemed or panicled, white or yellow, rarely red. Calyx usually campanulate, limb 5-toothed or -lobed, imbricate in bud. Corolla monopetalous, rotate or campanulate, 5-lobed, sometimes a little irregular ( Thladiantha ), lobes entire or fringed, imbricate in bud, inserted on the calycinal limb, and alternate with its divisions, distinct, or more often coherent, and then adnate to the calyx, and as if continuous with its limb. Andrcecium inserted at the bottom of the corolla, or of the calyx, composed of two 2-celled and 1 Samydacea, tribe Honuilicv ; sec p. 442. — Ed. G G 450 CYI. CUCURJBITACEiE. Cucumis Melo. $ diagram. Cucumis Melo. 9 diagram. Cucumis. Andrcecium (mag.). Cucumis. Seed and funicle. Cucumis. Melon. Style and stigmas Seed cut (mag.). (mag.). Cyclanthera. Anther with circular dehiscence (mag.). Cyclanthera. Anther cut vertically (mag.). Sechium. Flower^bud (mag.). CVI. CUCURBITACEtE. 451 Stchhiin. Young 9 flower. Sechium. Ovary cut vertically, with pendulous ovule. Echinocyslis. l'istil cut vertically, with erect ovules. Eclii oocyst is. Ovary cut transversely (mag.). one 1 -celled anther, or of 5 normal 2-celled stamens; filaments short, thick, free or monadelphous, connective sometimes prolonged beyond the anthers ; anthers extrorse, cells usually sinuous, adnate to the connective, rarely straight or arched, and opening longitudinally or circularly. Ovary inferior, usually composed of 3-5 carpels (rarely 1), coherent, with parietal placentas reflexed towards the circumference ; style terminal, short, 3-fld or -partite ; stigmas thick, lamellate, lobed or fringed ; ovules solitary or numerous, several-seriate, erect pendulous or horizontal, anatropous. Berry fleshy, i rarely dry), usually indehiscent, sometimes opening elastically at the base by the separation of the peduncle ( Ecbalium ), or at the top by the raising of an operculum /. . or by irregular rupture ( Momordica ), sometimes dehiscent in 3 valves, or circuinsciss (Act inostemma) . Seeds numerous, horizontal, or erect at the bottom of the eell (lie hi nocyst is, Ahohra), rarely one single pendulous (Sicyos, Sechium) [or two, one pendulous and one erect (Raphanocarpum)~\, usually compressed, sessile or shortly funieled ; testa membranous crustaceous or horny, often girt with a thick border, rarely linear andsamaroid; albumen 0. Embryo straight; cotyledons foliaceous, veined ; radicle short, reaching to the hiluin, centrifugal ; plumule with 2 distinct leaves. [The following is the most recent classification of the Cucurbitaceai, by Bentham and Hooker til., in the ‘ Genera Plantarum ’ : — Tribe I. Cucumeuine.e, Naud. — Stamens usually 3, free or connate; anther-cells straight or curved or flexuous. Ovary with 3, rarely 2-5 placentas ; ovules horizontal. Hodgsonia, T lfiiiriiit*Trichusanthe8, Trochomeria, mLagenaria,*Luffa , *j Uenincasa, *Momordica, Thladianihci, *C»cit)itis, *Citrull ik, Ecbalium , Ceplialaiulra, *Cucurbita, Bryonia , Zehneria, Melothria, Rhyn- chocarpa , Augur in, &c. Tribe II. AitonuE.*, Naud. — Stamens 3, free ; anther-cells flexuous. Ovary 3-4-celled ; ovules 1-2 in each cell, erect or ascending from the base. Abobra, Trianosperma, &c. Tribe III. E LATERIE.E, Hook. fit. — Stamens 1-3. Ovary usually oblique, 1-4-celIed, or 2— X -locellate. Berry bursting elastically, exposing a naked fleshy seed-bearing columella, rarely dehiscing by pores. Seeds erect, ascending, or horizontal. Echinocystis, Slater turn, Cyclanthera, Ac. Tribe IN’. Sicyoids£, Naud. — Stamens 3-5 ; filaments usually connate. Ovary 1-celled ; ovule solitary, pendulous. Sicyos, *Sechimn, Ac. Tribe V. Gom ihogvneaj, //«»«/,-. Jit. — Stamens 5, free; anthers 1-celled, dehiscing longi- o a 2 452 CVI. CUCURBIT ACEiE. tu (finally. Ovary 1 -celled ; ovules 2-3, pendulous from the top of the cell. Gomphogyne, Actinostemma. Tribe VI. Gynostemme.®, Hook. fil. — Stamens 3-5, free or connate; anthers 1-celled, dehiscence longitudinal. Ovary 3-celled ; ovules 1-2, pendulous in each cell. Gynostemma, Schizopepon. Tribe VII. Zanonie.®, Hook. fil. — Stamens 5, free; anthers oblong, 1-celled; dehiscence longitudinal. Ovary with 3 thick placentas ; ovules many. Fruit 1-celled, cylindric, truncate, opening at the depressed vertex by 3 valves. Seeds winged. Zanonia, Alsomitra, Gerrarcl- anthus. Tribe VIII. Feville.®, Hook. fil. — Stamens 5, free ; anthers 2-celled. Ovary 3-celled ; styles 3, distant ; ovules inserted on the axis of the ovary. Fruit large, indeliiscent. Seeds large, orbicular, attached to a large central trigonous column. Fevillea. — Ed.] The tendrils of Cucurbitacece were long considered to consist of a solitary stipule, but Naudin’s observations render it more probable that the upper portion represents the midrib or principal nerve of a leaf-blade, and the base a prolongation of the axis, i.e. a branch which is stunted near the point where it leaves the stem and merges into the petiole of the leaf which springs from it. Cucurbitacece are more or less closely connected with Gronoviece [see Loasece'], Loasece, Beyoniacece, Papayacece, &c. Gronovia only differs in its $5 flowers, didymous anthers, 1-ovuled ovary and nut. We have indicated the affinities existing with Loasece and Passiflorece (which see). Cucurbitacece also somewhat resemble Beyoniacece in the palminerved leaves, diclinism, extrorse anthers and inferior ovary; but the latter differ in polyandry, loculicidal capsule, very small seeds, stem without tendrils and clearly stipulate leaves. There is also some analogy between Cucurbitacece and Papayacece [see Passiflorece Tribe V., p. 448], in diclinism, the berried fruit and palminerved leaves ; but in Papayacece the flower is diplostemonous, the corolla is valvate [or contorted] and liypogynous, the anthers introrse, the seed albuminous, See. Finally, Cucurbitacece, like Aristolochiece, have an inferior ovary, extrorse anthers, climbing stem, alter- nate leaves and axillary flowers, but the resemblance goes no further. Cucurbitacece are met with in the tropical and sub-tropical regions of both worlds; they are quite absent from cold countries, and rare in temperate, although several tropical species can be cultivated there in consequence of their short life, every phase of which can be passed through in a summer. In comparing the Melon with the Colocynth, it might be thought that their properties were very dif- ferent ; they are nevertheless identical in most species, and only vary in intensity according to the nature and development of the organs, and the presence of certain accessory principles, the chief of which is sugar. Many species, in fact, owe to bitter substances, extractable and sub-resinous, crystallizable or not, a drastic and emetic quality, violent in some, weak in others, usually concentrated in the root, sometimes in the pulpy fruit. The rind of many berries is bitter, while the flesh is rendered agreeable by the sugar, mucilage, salts, free acids and aromatic principles which it contains, besides which the quality varies with age and ripeness. The seeds are oily and rather bitter. Bryonia alba and dioica have a large root, containing a milky juice, acrid and bitter, with a nauseous smell, and strongly drastic; even externally, if applied fresh to the abdomen, it is purgative. The exotic Bryonias have the same property; the root, of B. abyssinica, rich in starch like all its congeners, is used as food in Abyssinia, after having been cooked. The Colocynth ( Cit.rullus C'olocynthis ) is an Eastern [and North African] plant, the fruits of which are more bitter than those of any other species ; their spongy pulp, insipid and nauseous in smell, contains a fixed oil, a resin, and an extractable principle, to which are due the drastic properties known to the ancients. Ecbalium ayreste, [the Squirting Cucumber,] commonly called Wild Cucumber, a plant common about ruins throughout the Mediterranean region, and formerly renowned for its bitterness and purgative properties, is now fallen into oblivion. The fruit of Luffa is eatable in India and Arabia before it is ripe, but when ripe it becomes strongly purgative. The same is the case with that of Trichosanthes anyuina, which grows in China and India; and with the Momordicas of America. The berry of Momordica Balsamina, infused in olive oil, enjoys among the inhabitants of tropical Asia a great reputation as a vulnerary. The leaves of M. Charantia possess the same properties. Among edible Cucurbitacece we must place in the first rank the Pumpkin ( Cucurbit a moschata, C. Pepo, C. Pepo vnr., and C. maxima), Gourd ( Laytnaria vulyaris), Cucumber ( Cucumis sativus ), [Vegetable Marrow ( Cucur - CVII. BEGONIACEiE. 45.‘I bita orifcra)], Water Melon ( Citrullus vulyaris ), and Melon ( Cucumis Melo ), all Asiatic or African species, cultivated in Europe from the highest antiquity. All these run into numerous varieties, with a reticulated or smooth bark, tubercular sides, and white, yellow or red flesh, &c. The Water Melon provides the natives of hot countries witli a refreshing food. The juice of the Cucumber, mixed with calves’ fat, is largely usod ns a cosmetic ; the fruit of one of its varieties, gathered before it is ripe and preserved in viuegar, forms n condiment known by the name of Gherkin. [The true or West Indian Gherkin is the unripe fruit of Cucumis AnguriaJ] Cucumis Dudaim is cultivated in Turkey for its fruit, which has a delicious scent, but insipid pulp. The seeds of these different species contain a fixed nil and mucilage, which lead to their employment as an emulsion ; the seeds of the Cucumber, Melon, Pumpkin, and Gourd are called in pharmacy the ‘four larger cold seeds.’ Tolfairia pedata, a shrub growing wild on the shores of East Africa, and cultivated in the Mascarine Islands, is renowned for the edible fix' d oil which is contained abundantly in its cotyledons, [as also T. occidentalis, found in West Africa]. All the cultivated Cucurbit acete are remarkable for polymorphism and the variety of their fruits. Lai/enoria produces both the small gourds of pilgrims and enormous calabashes. Trichosanthes colubrinn, from equatorial Asia, has slender cylindrical fruits, red, yellow and green, coiled like a serpent, and six feet long. We may also mention Luffa, the fruit of which, dried and reduced to its fibrous part, serves ns a sponge or dishcloth in the Antilles, [and is sold as 1 Egyptian Bath-sponge ’ in England. Benin- < as, 1 nrifera, of tropical Asia, or White Gourd, yields a wax on the surface of its fruit; it is considered a type of fertility in India, and presented to newly-married couples. Acanthosicyos, a remarkable erect furze-like leafless spinescent plant of the desert regions of South Africa, produces a small gourd whose edible pulp is much sought by the natives. The oily seeds of Fcvillea are intensely bitter, emetic, and purgative, and its oil is largely used for lamps, &c. — Ed.]. CVII. BEGONIA CEAE, Br. Stamens numerous. Anthers extrorse. Ovary inferior, ^-celled, many-ovuled. Capsule with 3 cells winged on the back, and 3 loculicidal val ves. Seeds numerous ; albumen scanty or 0. Embryo straight, axile. Herbs with a fleshy tuberous rhizome, or undershrubs or shrubs with watery acidulous juice. Stem alternately branched, cylindric, swollen at the nodes, jointed. Leaves alternate, sometimes distichous, rarely sub-wliorled, petioled, .simple, usually palmi- or peltate- or penni-nerved, sides usually unequal, cordate at the base, denticulate, teeth often mucronate, rarely entire and linear-lanceolate, sometimes variously cut, folded within the stipules before expansion, hairs usually simple, rarely stellate, scattered over the upper surface, and principally situated on the nerves of the lower surface ; stipules free, often caducous. Flowers monoecious, on axillary peduncles, branching into cymes, $ in the middle, ? at the circum- ference, furnished below the inflorescence with membranous bracts. Flowers $ : Perianth petaloid, with 2-seriate leaflets, which may be considered as calyx and corolla; outer leaflets 2, opposite, valvate in bud; inner usually 2, folded in bud, alternate with the outer, sometimes 3-7, or 0. Stamens numerous, in the centre of the flower; filaments distinct, or variously monadelphous, continuous with the connective; anthers extrorse [or dehiscing laterally], 2-celled, cells adnate to the connective and separated by it, opening by 2 longitudinal slits, or rarely by 2 terminal pores. Rudimentary ovary 0. Flowers 5 : lobes of perianth (sepals and petals nearly alike in form and colour ; sometimes 2, valvate in bud, and opposite ; sometimes 3—1, of which 1-2 are inner and smaller; sometimes 5-6-8, imbricate in bud. Ovary inferior, usually divided into cells corresponding to the styles, and 454 CVII. BEGONIACEiE. Begonia pannosa. Begonia. y botanists; it ineludcsmost ofthe Ficoidcce of Jussieu, as also Mesembryanthemas . p.259), Tetragoniea, LindL (p. 464), and M •’ gin e, Liudl.(p. 2G1). — Ed.] 462 CXI. MESEMBRYANTHEMEiE. As thus constituted, Ficoidece are intermediate between Caryophyllece, Portidacece and Paronythiece, and indeed form one aggregate order with them. It differs from Caryophyllece in the 2-co -celled ovary, usually alternate leaves, and absence of petals; from Portulacece in the never 2-sepalous calyx and the 2-oo -celled ovary ; and from Paronychiece in habit, 2-oo -celled ovary, simple stigma, and dehiscence of the capsule. Ficoidece also rank near Phjtolaccece and Pulyyonece. As a whole they may be regarded as the perigynous many-celled representatives of those orders. Most of the Ficoidece are weeds of dry hot regions throughout the globe ; their properties are unimportant. — Ed.] CXI. MESEMBRYANTHEMEIE } (Ficoidearum genera , Jussieu. — Mesembrianthemeas, Fenzl.) Calyx superior. Petals and stamens indefinite, epigynous. Ovary several- celled, with linear parietal placentas, occupying the bottom of the cells. Capsule depressed, many-valved. Seeds numerous. Embryo curved. Albumen farinaceous. Stem sub-woody or rarely herbaceous or fleshy. Leaves opposite or alternate, fleshy, plane or cylindric or trigonous, exstipulate. Flowers 5 , regular, axillary or terminal, inflorescence various, generally opening towards noon, sometimes in the evening, gold, saffron, purple, violet, pink or white. Calyx superior, 5- (rarely 2-8-) partite, segments herbaceous, leafy or semi-scarious, usually unequal, imbri- cate. Petals numerous, inserted on the calyx, usually many-seriate, linear, Mesembrya/ithemum. Diagram. Mesembry anthem um . Seed, entire and cut vertically (mag.). 1 £ee Tribe I. of Ficoidece, p. 461. CXI. MESEMBRYANTHEMEiE. 463 Mttembrya nthem u m . Nearly ripe fruit (mag.)* /v Mesembrya n them um. Ripe fruit (mag.). Mesernb rya nthemum. Ripe fruit cut vertically (mag.). marcescent or deliquescent, imbricate in bud. Stamens indefinite, many-seriate ; filaments subulate or setaceous, unequal, free or united at the base ; anthers introrse, 2-celled, ovoid, versatile, dehiscence longitudinal. Carpels 4-20, cohering into an inferior ovary, 4-20-celled, ventral suture free, superior; placentas linear, parietal, occupying the bottom of each cell; stigmas 4—20, cristate, crowning the floral axis; ovules numerous, several-seriate, fixed by a ventral liilum to long funicles. Capsule at first fleshy, then woody and dry, top truncate, opening along the stig- matic crests by the centrifugal raising of the thick coriaceous epicarp as it separates from the endocarp, which persists under the form of geminate chartaceous triangular segments. Seeds numerous ; testa crustaceous, soft or granular; albumen farinaceous. Embryo peripheric, dorsal, curved or hooked, voluminous ; cotyledons ovoid or oblong ; radicle cylindric. GENUS. * Mesembryanthemum. A/- «. mbryauthemeee approach Cadets in the polypetalous and epigynous corolla and its aestivation, in polyandry, parietal placentatiou and curved ovules ; they are separated by their many-celled ovary, sessile stigmas, farinaceous albumen, and normal leaves. They have also some alliuity with Portulacea ?, and especially with Tetragonia, in the more or less inferior ovary, polyandrous stamens, curved ovule, peri- pheric embryo, and farinaceous albumen ; but in Portuluca the placentatiou is central and free, and in Tetra- gonal, which has a pluricelled ovary, the ovules are inserted at the top of the central angle of the cells. Mim mbryantheincte inhabit South Africa. A small number of species are met with in the Mediter- ranean region, America and Australia. The fruits of some {M. edule) contain sugar, and are edible. Ike leaves of M. gemculiflorum are used as a vegetable by the people on the borders of the great African desert, aud the bruised seeds yield them Hour. M. crystaliinum (Ice-plant), naturalized in the Mediterranean region, is frequently cultivated on account of its singular appearance, its surface being covered with shining vesicles containing a gummy principle insoluble in water, and resembling in the snnlight a covering of hoar-frost. The inhabitants of the Canaries use the juice of many of these plants as a diuretic, and bum their leaves to obtain soda. The juice of M. acinaciformc is successfully employed at the Cape against dysentery. That of M. lortuosum is considered as a narcotic or sedative. The leaves of M. oust rale. , called Pig's Face, are eaten pickled in Australia. The seeds of the Shama are a most important article of food with the desert Arabs.] 464 CXII. TETRAGONIEiE. CXII. TE TRA G ON IE ^E,1 Fenzl. T. exp ansa. Fiowei (mag.). Tetragonia. Diagram. '"'01 “ Tetragon ia. Vertical section of pistil (mag.). Tetragonia fruticosa. Tetragonia. Fruit (mag.). Tetragon ia. Seed cut vertically (mag.). Tetragonia . Embryo (mag.). Herbaceous, annual, or suffrutescent plants, diffuse, succulent, glabrous or velvety. Leaves alternate or sub-opposite, flat, fleshy, usually entire. Flowers $ , regular, axillary or leaf-opposed, solitary or agglomerated, sometimes in a spike or raceme. Calyx superior, 3-5-lobed, fleshy, coloured within, induplicate-valvate in bud. Corolla 0. Stamens epigynous, l-5-oo , solitary, or aggregated between the calycinal lobes ; filaments filiform-subulate ; anthers 2-celled, didymous, cells oblong, separated at the base and top, opening longitudinally. Ovary inferior, 3-5- (sometimes 8-9-) celled, or 1-2-celled by arrest ; styles as many as the cells, short, stigmatiferous on their inner edge ; ovules solitary in each cell, pendulous by a short funicle from the top of the inner angle, semi-anatropous, micropyle superior, raphe dorsal. Drupe or angular nut crowned by the accrescent calyx, which is often dilated into horns or longitudinal wings ; crown of pericarp naked and marked with See Tribe I. of Ficoidea, p. 461 — Ed. CXIII. UMBELLIFE1LE. 465 radiating furrows, cells 1-9. Seeds pendulous, pyri-reniform ; testa crustaceous, shining, brown, striate longitudinally ; hilum naked. Embryo annular, surrounding a farinaceous albumen. GENUS. * Tetragonia. This group, long united to Mesembryanthemeee, is connected with it by the inferior ovary, peripheric embryo and farinaceous albumen ; but it is separated by the apetalous flower, the plurality of the ovarian cells, and the placentation. Tetragorniecc are also very near Portulacecr, but are distinguished by their always inferior ovary with 1-ovuled cells, the form and consistence of the fruit, &c. They also approach Chenopodieai in the curved ovule and the nature of the albumen ; but the latter are distinguished by their superior always one-celled ovary, their perigynous stamens opposite the sepals, &c. All the species of Tetragonia are dispersed over the isles and promontories of the southern hemisphere, beyond the tropic. Tetragonia crpansa is a plant of New Zealand and the isles of the Southern Ocean, the properties of which were unknown to the natives before Captain Cook used it as food for his sailors and as a cure for scurvy. It was introduced into Europe by Sir J. Banks, and is now cultivated as Summer or New Zealand Spinach. CXIII. miBELLlFERyE. (Umbellat.e, Toumefort. — Sciadophytum, Necker. — Umbelliferai, Jussieu. — Apiacea:, Lindl.) Corolla polypetalous , epigynous, isostemonous, valvate in bud. Petals 5, inserted on an epigynous disk. Stamens 5, alternate with the petals. Ovary inferior, of 2 1- ovuled cells. Ovules pendulous, anatropous. Fruit dry. Embryo albuminous, apical. Radicle superior. — Leaves alternate. Herbaceous or rarely woody plants (Myodocarpus). Stem usually furrowed or channelled, knotty, fistular, or full of pith. Leaves alternate, petiole dilated at the base, blade usually cut, rarely entire ( Bupleurum , Gingidium). Flowers 5 , rarely diclinous by arrest, arranged in umbels and umbellules, sometimes in a head ( Eryn - gium), sometimes in whorls ( Uydrocotyle ) ; umbels and umbellules each furnished with an involucre of bracts, or naked. Calyx 5-lobed or almost 0. Petals 5, valvate or sub-imbricate in bud, inserted outside an epigynous disk, free, caducous, the point generally indexed, sometimes 2-fid or -partite, the outer often largest. Stamens 5, alternate with and inserted like the petals ; filaments indexed in bud ; anthers 2- celled, sub-didymous, introrse. Carpels 2, coherent into a 2-celled ovary, cells autero-posterior ; sty Is 2, thickened at the base into [one or two] stylopodes, which crown the ovary ; [stigmas minute, capitellate] ; ovules originally geminate in each cell, afterwards usually reduced to one, pendulous, anatropous. Fruit 2-celled, dividing into 2 mericarps, which [often] remain suspended at the top of a single or double filiform prolongation of the axis ( carpophore ). Surface of the fruit with 10 more or less prominent ridges ( juga ) named primary. The median dorsal ridge of each carpel is called the carinal or dorsal ; the two to the right and left of H H 466 CXIII. UMBELLIFERiE Fceniculum officinale. Umbel and umbellules without involucre or involucels. Fennel. Flower (mag.). Fennel. Diagram, Calyx suppressed. Carrot. ( Daucus Cccrota.) Umbel and umbellules with involucre and involucels. sEthusa Cynapinm. Naked umbel ; umbellules with involucels. sEt/iusa. Flower (mag.). sEIhusa. Flower cut vertically (mag.). Fennel. Fruit (mag.). 2-partite carpophore. Fennel. Transverse section of fruit (mag.). Carpels with five primary sides, furrows 1-vittate; commissural face 2-vittate. Fennel. Transverse section of carpel (mag.). JEthusa. Vertical section of a semi-globose carpel, with thick wall, showing the minute embryo at the top of the albumen (mag.). JElhusa. Transverse section of fruit (mag.). Carpels with five raised and thickened sides : the lateral largest; furrows 1-vittate ; commissural face 2-vittate. sEthusn. Fruit. Bifid carpophore (mag.). sEthusa. Umbellule with 3-phyllous involucol. CXIIL UMBELLIFERiE. 4€ Scandix Pec fen- Veneris. Umbel without involucre ; umbellules with iovoluccls. Scandix. Flower (mag.). Scandix I'ccten- Veneris. Fruit. Undivided carpophore. Carpels with five primary sides, prolonged into a long beak. Eryngium planum. Capitulnm. \ M hryngium. I » .I.T Itll. Calyx risible. Eryngium. Stamen inflected in activation (rnag.). Scandix. Transverse section of a 5 -sided carpel, with non-vittate furrows, and seed furrowed on its ventral face (mag.). Coriander. Pistil and calyx with unequal limb. Coriander. Flower, with outer petals largest. Coriander. Fruit (mag.). Hemispherical carpels with five primary fiexuous sides ; secondary sides more prominent, keeled ; furrows not vittate. Scandix. Transverse section of carpel (mag.). Angelica. Seed covered with numerous bands (mag.). Hydrocotyle. Compressed fruit (mag.), with keeled sides and worn edges ; furrows non-vittate. it are called inte mediate ridges; and tlie two on eacli side of the cai-pel are called Inti ml ridges; the intervals which separate the primary ridges are called furrows, and are sometimes occupied by other or secondary ridges. Longitudinal resiniferous canals, called villa, are developed in the thickness of the pericarp, and placed in the furrows, or on their commissural surface, or on the seed itself; they may be some- times absent. Seed pendulous, free or adhering to the pericarp. Embryo straight, minute, at the top of a horny albumen; radicle superior. n h 2 468 CXIII. UMBELLIFERiE. Tlie following is tlie Candollean division of the order : — Tbibe I. U mbelliferje Okthosperm.b. — Seed fiat or convex on its commissural face. Tribe II. Umbellifer^; CampybosperMjE. — Seed channelled, furrowed, or concave on its commissural face, either from the incurved margins, or from the inflexion of the two ends. [The following conspectus of the tribes of Umbelliferce is that elaborated for the ‘ Genera Plantarum,’ and is a sketch only ; the classification of the genera of this order being a most difficult and complicated task, and there being many exceptions to the characters given : — Series I. Heterosciadiej:. — Umbels simple, or regularly (rarely irregularly) compound. VittEB 0. Tribe I. Hydrocotyle,®.- — Fruit laterally compressed or constricted at the narrow com- missure; carpels dorsally acute or obtuse. Hyclrocotyle, Trachymena, Xanthosia, Azorella, &c. Tribe II. MulinEvE. — Fruit exceedingly narrow at the commissure, 4-angled, or of 2 discoid carpels placed face to face, which are dorsally flat or concave. Eoivlesia, Aster iscum , Mulinum, Hernias, &e. Tribe III. Sanicure.e. — Fruit sub-terete, commissure broad, dorsally compressed. *Eryn- c/ium, Arctopus, *Astrantia, Sanicula, Adinotus, &c. Series II. Haplozygie.®. — Umbels compound. Primary ridges only of the fruit con- spicuous ; vittas rarely absent in the furrows. Tribe IV. Echinophore®. — Flowers ? solitary in the umbels, sessile ; fruit involucrate by the hardened pedicels of the $ flowers. One carpel perfect, sub-terete, the other arrested, slender or rudimentary. Echinophora, Pycnocyda. Tribe V. Am mine®. — Fruit laterally compressed, or constricted on both sides towards the commissure, or grooved. Sub-tribe 1. Smyrniece. — Fruit broadly ovate or didymous. Seed hollowed or furrowed in front. Physospennum, Conium, Trachydium , * Arracacha , Smymium, &c. Sub-tribe 2. Euamminece.— Seed convex or flat in front. * Bvpleurum, Lichtensteinia, Trinia, *Apium, Gicuta, Ammi, Carum, *8ium, Sison, AEgopodium, *Pimpinella. Sub-tribe 3. Scandicinece. — Fruit ovate, oblong, or linear. Seed grooved in front. Conopodium, *Myrrhis, Oreomyrrhis, Clmropliyllum, Scandix, Antliriscus , &c. Tribe VI. Seseline.®. — Fruit sub-terete or dorsally compressed, commissure broad ; lateral ridges distinct, thickened or slender, but not dilated. Sub-tribe 1. Euseselinece. — Fruit sub-terete or rarely dorsally sub-compressed ; primary' ridges sub-equal, not winged. Seseli, *Foenicuhim. Sub-tribe 2. Thecocarpece— Fruit hard, terete, equally 5-angled or 5-winged ; carpels connate ; vittre obscure or scattered. Thecocarpus, &c. Sub-tribe 3. Caclirydece. — Fruit sub-terete or dorsally compressed ; ridges obtuse, acute or winged. Vittao indefinite, adhering to the seed, and separating from the corky exocarp. Gachrys, Prnngos, Gritlimum , &c. Sub-tribe 4. CEnanthece . — Fruit sub-terete or dorsally compressed, ridges wingless, the CXIII. UMBELLIFERiE. 469 lateral coherent as a thick, almost corky, margin to the fruit. Vittre solitary in the furrows. (Enanthe, JEtliusa, , Siler, Sfc. Sub-tribe 5. Schultziece. — Fruit more or less dorsally compressed, ridges wingless, the lateral hardly thickened. Vittse various or 0. Schultzia, Silaus, &c. Sub-tribe 6. Selinece. —Fruit dorsally compressed or sub-terete, primary ridges or the carinal only produced into thickened wings ; wings equal, or the lateral broader. Meum , Liyndicum, Aciphylla, Selinum , Cymopterus, Anesorhiza, Pleurospermum , &c. Sub-tribe 7. Angclicecv. — Fruit dorsally compressed, dorsal and secondary ridges wingless or obscurely winged, lateral expanded into broad membranous or corky wings. Levisticum, Angelica , * Arcliangclica, &c. Tribe VII. Pkccedane.®. — Fruit dorsally much compressed, lateral ridges dilated into broad tumid or wing-like margins, those of the opposite carpels closely coherent, and appearing as one till dehiscence. *Ferula, Dorema, Peucedanum, Heradeum, Opopanax, Malabaila, Tordylium, &c. Series III. Diplozygie.£. — Umbels compound. Furrows of the fruit thickened over the vittse, or furnished with secondary ridges. Tribe VIII. CA0CALINE2E. — Fruit sub-terete, ridges obtuse or prickly, or dilated intolobed or toothed wings. (Annuals or biennials.) *Coriandrum, *Cuminum, *l)aucus, Caucalis , &c. Tbibb IX IiASEBPrriEA. — Fruit sub- terete or dorsally compressed; secondary ridges all, or the lateral only, much raised or winged. (Perennials, rarely biennials.) Laserpitium, Thapsia, Monizia, Elceoselinum , &c. — En.J Umbellifcrer are allied to Araliacea by the inflorescence, alternate leaves, polypetalous, epigynous, and isostemonous corolla, valvate in bud, the inverted and anatropous ovule, and the minute embryo at the top of a copious albumen. Araliaccce differ only in their fruit, which is usually fleshy [and often polycarpellary ; and conspicuously in habit]. Umbellifera also approach Comecc (which see). Umbcllifertt principally belong to the northern hemisphere, where they inhabit temperate and cool countries, e-pecially the Mediterranean region and Central Asia. But few are met with in the torrid zone, where they only grow on high mountains and near the sea, where the heat is moderate. Vmbclliferve contain a great many species, some alimentary, others medicinal or poisonous. These very different properties are due to principles which exist in various proportions either in the leaves, root or fruit : the roots principally contain resins or gum-resins ; the fruits possess a volatile oil in the vittic of their pericarp or seed ; the leaves of some species are aromatic and spicy, of others narcotic and acrid. Such T’mbclliferte are good for food as have a sufficient quantity of sugar and mucilage united to the hydro-carbon principles; when the volatile oil predominates, as in the fruit of many, they become n stimulating nn dicine, and an agreeable condiment. M’e will briefly mention the indigenous species most remarkable for their properties, of this numerous family: — Cicii/ariti rirosa (Water Hemlock). Root and stem with a yellowish very poisonous juice. Rarely used in medicine, as the Spotted Hemlock. Apium yraivoh'tt*. Root aromatic, bitter, acrid, aperient, as is the fruit. Celery is a cultivated variety, of which the root and blanched petioles are used for food, and possess exciting qualities. Petmselinum sativum (Parsley). Herb and root used as a sauce. The expressed juice is recom- mended as an emollient and diuretic. JF.yopodium Podayraria (Gout-weed). A stimulant, diuretic and vulnerary. Carum Cunti (Caraway). A stimulating stomachic, employed in the North to flavour bread and cheese. 470 CXIII. UMBELLIFER2E. Bunium Bulbo-castanum (Earth-nut). A tuberous globose starchy edible rootstock. Pimpinella Anisurn (Auise or Aniseed). The fruit contains an aromatic volatile and a fixed oil ; it is of a piquant and sweetish taste, and is much employed by confectioners and dealers in liqueurs ; recom- mended as a carminative, diuretic, diaphoretic, and even expectorant. Siam Sisarum and S. Ninsi (Water Parsnip, Skirrets). Natives of China and Japan, rarely cultivated in EuVope. They have a sweet root with an agreeable aroma, considered to be an excitant. (Fnanthe crocata (Meadow Saffron). A plant growing by river-sides. Root composed of oblong- fascicled tubercles, of a mild taste, containing a milky juice turning yellow when exposed to the air, and eminently poisonous. sEthusa Cynapium (Lesser Hemlock, Fool’s Parsley). A very poisonous plant with a nearly glaucous stem striped with reddish lines, with finely-cut dark green leaves with a disagreeable and suspicious scent when bruised. It grows in all cultivated places, where it is often mistaken for Parsley, which differs from it, besides the characters of the fruit, 1st, in its bright clear green foliage -with rather large divisions, the teeth of which are terminated by a little white spot, and which have a fresh aromatic smell; 2nd, in the stem, which is neither glaucous nor marked below with reddish lines. Phellandrium aquaticum. A poisonous plant ; the aromatic fruit is employed in medicine as an antiphthisic and antidysenteric. Fccniculum vulgare (Fennel). Fruit aromatic, stimulant, stomachic. Root and leaves aromatic, used in medicine, the one as nutritive, the other as stimulating. Crithmum mantimum (Samphire). Juice a vermifuge; leaves aromatic, used as a condiment [and for pickling]. Levisticum officinale (Lovage, Mountain Hemlock). Roots and fruits with an agreeable smell, slightly stimulant and diuretic. Angelica Archangelica (Angelica). Root a tonic. Fruit a stimulant and stomachic. Leaves vulne- rary. Young stems preserved [in sugar) and eaten. Imperatona Ostrutkium (Master- wort). Root bitter, aromatic and stimulating. Peucedanum officinale (Sulphur-wort). Root containing a yellow foetid juice, formerly employed against hysterics ; an aperient and bechic. Anethum gravcolens (Bastard Fennel). Fruit exciting, tonic, carminative, employed in dyspepsia. Pastinaca oleracea (Parsnip). An alimentary and stimulating root. Heracleum Spondylium (Cow-Parsnip). Root acrid find bitter. Stem sugary, with a fermentable juice, which in the north yields a very intoxicating liquor. Cumimim Cyminum (Cumin). An Egyptian and Asiatic plant. Fruit aromatic, of a bitter and hot taste, used as a stimulating medicine. Thapsia villosa (Deadly Carrot). A Mediterranean plant. Root purgative. Itaucus Carota (Common Carrot). A sugary edible root ; its juice is administered ns an analeptic. Flowers very aromatic ; infused in alcohol they produce the liqueur called Oil of Venus. Myrrhis odorata (Sweet Cicely). An aromatic plant, used for flavouring. Coniurn macidatum (Hemlock). A poisonous plant, employed in cases of enlargement of the glands and viss^ra. Aiftlirisms Cerefolium (Chervil). Cultivated in kitchen gardens, of an agreeable scent and perfumed taste, without acridity or bitterness. Smyrninm Olusatrum (Alexanders). Formerly esteemed as a vegetable ; leaves very aromatic ; root diuretic. Coriandrum sativum (Coriander). Fruit foetid, with the odour of bugs, becoming aromatic when dry ; used as a stimulating and stomachic medicine. Hydrocotyle asiatica. Prescribed in India against leprosy. Arracacha esculenta is an Umbellifer cultivated on the high table-lands of the Andes ; its tubercled roots furnish an agreeable and digestible food. The gum-resins of some exotic Umbellifers are used in medicine; the most important is the Asa- feetida [Devil’s Dung, Narthex Asafcdida\, which is procured from a Persian [West Tibetan] plant belonging to a genus near Ferula. This substance diffuses a very foetid smell, and its taste is acrid and bitter. The Persians praise it as a delicious condiment ; it is recommended by European doctors as the CXIY. ARALIACEiE. 47] mot>t powerful of anti-hysterical medicines, and is also administered in the treatment of asthma. The Sagapenuin or Seraphic Gum is a strong-smelling substance, of an acrid and bitter taste, composed of a gum, a resin, and n volatile oil; it comes from Persia like the Asafcetida, and its properties are analogous, though less powerful; it probably belongs, liko the latter, to a genus near Ferula. Galbanum has been employed for centuries as a stimulant of the nervous and vascular systems ; it comes from Syria, but its origin is unknown ; as is the case with the Laser [or Thapsia of the ancients], represented on some Phoenician medals or coins, and of which the juice was exported from Cyrenaica to Greece. Gum Ammoniac is procured from Dorema Ammoniacum, a native of Persia and Armenia. This resin is at first of a sweetish taste, then acrid and bitter; its qualities are the same as those of the Asafcetida, but it is less powerful in hysterical cases ; it is also employed to stimulate the functions of the abdominal viscera and respiratory organs. [The Sumbal, a very foetid musky drug, used as an antispasmodic, is the very large root of the Euryangium Sumbal , a native of Central Asia. — En.] CXIY. ARAL1ACEJE. (Aralle, Jussieu. — Araliace^e et Hederaceas, Bartling.) Corolla pohjpetalous, epigynous, usually isostemonous. Petals 5-10, valvate in bud. Stamens inserted alternately with the petals, rarely more. Ovary inferior, of 2-man y 1 -ovuled cells. Ovules pendulous, anatropous. Fruit a berry. Embryo albuminous. Radicle superior. Stem woody, rarely herbaceous, perennial, with cylindric, sometimes spiny branches, often climbing or attaching itself to other plants by fibrilke, whence they appear parasitic. Leaves alternate, very rarely opposite, simple, pinnate or digi- tate ; petioles enlarged and thickened at the base ; stipules 0. Flowers 5 , or imper- A / alia eduJts. 472 CXIY. ARALIACfEiE Aral [a. Tlower-hud (mag.). Aralia racemosa. Flower (mag.). Transverse section of flower (mag.). Aralia. Flower crowned by the calyx (mag.). Aralia. Vertical section of ovary (mag.). Hal era Helix. Ivy. Aralia. Transverse section of ovary (mag.). Ivy. Seed (mag.). Fruit. Ivy. Seed cut vertically (mag.). Reynoltisia Sandwicensis. Flower cut vertically (mag.). CXIV. ARALIACEiE. 473 A do. ra mosehaMlina. Gaslonia culispongia. Flower-bud (mag.). Gaslonia. Petals separating in one piece like tlie operculum of a pyxidium (mag.). of ovary (mag.). Gastonia. Polygynous pistil (mag.). Adoxa. Pentamerous flower (mag.). Adoxa. Seed (mag.). Adoxa. Seed cut vertically (mag.). Adoxa. Vertical section of ovary (mag.). Adoxa. Flower, lower surface (mag.). Adoxa. Pentamerous flower seen from above (mag.). Adoxa. Tetramerous flower seen from above (mag.). Adoxa. Fruit crowned by the calyx (mag.). Utlainjia ruir(dora. Adoxa. Adoxa. Half anther, Half anther, dorsal face inner face (mag.). (mag.). Adoxa. Vertical section of fruit (mag.). 474 CXIY. ARALIACEiE. feet through arrest, regular, in umbels, naked or involucrate capitula, racemes or panicles. Calyx superior, usually short, entire or toothed. Petals 5, 10 or more, inserted on the edge of an epigynous disk, valvate or imbricate in bud, free, or cohering at the top and detaching like a cup. Stamens inserted alternately with the petals, rai'ely double or treble in number (or indefinite) ; filaments short, distinct, very rarely 2 -partite ( Adoxa ') ; anthers ovoid or linear, introrse, incumbent, of 2 opposite cells opening longitudinally. Ovary inferior, crowned by the disk, of 2-15 1-ovuled cells ; styles equalling the cells in number, sometimes cohering, often very short ; stigmas simple ; ovules suspended from the top of the cells, anatropous ; berry fleshy or dry, crowned by the calyx. Seeds inverted; testa crustaceous, sometimes margined. Embryo minute, straight, at the top of a fleshy copious albumen ; coty- ledons short ; radicle superior. Tribe I. ARALIEAE. Corolla quite polypetalous, aestivation valvate. Stem usually woody. PRINCIPAL GENERA. * Aralia. * Iledera. * Panax. * Oreopanax. * Dendropanax. * Paratropia. * Sciadophyllum. * Didymopanax. * Gastonia. Tribe II. ADOXE2E .* Corolla sub-polypetalous, aestivation imbricate. Filaments 2-partite. Stem herbaceous. GENUS. Adoxa. [The genera of Araliacew have been re-examined and arranged as follows in the ' Genera Plantarum ’ : — Tribe I. Aualieaj. — Petals more or less imbricate, attached by a broad base. Stilbocarpa, Aralia, Pentapanax, &e. Tribe II. Mackinlayea). — -Petals shortly clawed, involute, valvate. Macldnlaya. Tribe III. Panacea:. — Petals valvate. Stamens as many as the petals. Albumen not ruminate. Horsfieldia, Panax, Acanthopanax, Fatsia, Didymopanax, Hehoingia, Meryta, Sciado • phyllum, Heptapleuruni, Dendropanax, &c. Tribe IV. Hederea:. — Petals valvate. Stamens as many as the petals. Albumen ruminate. Arthrophyllum, Cussonia , Oreopanax, Iledera, &c. Tribe V. Plerandrea:. — Petals valvate or connate. Stamens very numerous. Styles 0, or cohering in a cone. Plerandra, Tupidanthus, &c. — Ed.] AraliacetB approach Umbellifera , Ampelidea; , and Caprifoliacm (see these families). They are closely connected with Cornea; ; in both the petals are epigynous and isostemonous and valvate, the Adoxa is now referred to Caprifoliacea En. CXV. CORNER. 475 ovules are solitary in the cells, pendulous and nnatropous; tlio fruit is fleshy and the embryo albuminous, the stem is generally woody, and the flowers are umbelled or capitulate. Cornea only differ in their drupaceous fruit and opposite leaves. We place near Araliacea the genus Ilelxoingia , which is connected with them and with Iliinui- tne/itlca bv the valvate aestivation, inferior ovary, pendulous and anatropous ovules, albuminous embryo, wood v stem and alternate leaves. Araliacea inhabit both hemispheres, but not beyond latitude 52°; they abound in America and particularly in the mountains of Mexico and New Grenada, and are rare in the parallel regions of Europe and Asia, although the genus Paratropia is numerously represented in the' latter. This family contains few species useful to man. The leaves of the Ivy ( Iledera Helix ) are aromatic, and their chlorophyll, dissolved in tallow or oil, serves as a dressing for ulcers ; a decoction of them is also employed against vermin on the body. The root of Pan ax Ginseng is celebrated in Persia, China and India as a tonic and aphrodisiac. The Aralias of North America are esteemed there as sudorifics and depuratives, the rhizomes of Aralia nudicatde, the bark of the spiny Aralia and the mucilaginous aromatic root of the racemose Aralia are thus used. In Japan the young shoots of Ilelxoingia are eaten. [The beautiful substance called rice paper is the pith of Fxxtsia papyrifera.'] CXV. COliNEsE. (Caprifoliacearum tribus, Kunth. — Cornea:, D.C. — Cornacea:, Lindl.) Corolla polypetalous, epigynous, isostemonous ; petals 4-5, valvate. Sta- mens 1—5, alternate with the petals. Ovary inferior, of 2-3 1 -ovulexl cells. Ovules pendulous, anatropoxis. Fruit a drupe. Embryo albuminous, axile. Radicle svjxeriur. Stem woody, sometimes subterranean and emitting herbaceous branches. Leaves opposite or very rarely alternate ( Decostea ), penninerved, simple, entire or toothed, caducous or persistent, exstipulate. Flowers 5 , or dioecious by arrest (Griselixiia), in a head or umbel with a usually coloured involucre, rarely in a corymb without an involucre. Calyx superior, 4-toothed. Petals 4-5, inserted on the calyx and alternate with its teeth, valvate in bud, or sub-iinbricate in the $ flowers [Griselinia), deciduous. Stamens 4—5, alternate with the petals ; filaments filiform, distinct; anthers introrse, dorsifixed, 2-celled, dehiscence longitudinal. Ovary inferior, 2- (sometimes 3-) celled, crowned by a disk, often scarcely visible ; style simple ; stigma capitate ; ovules solitary in each cell, pendulous, anatropous. Drupes distinct or cohering, stone bony, 2-3-celled, or 1-celled by arrest. Seeds inverted, integument coriaceous. Embryo straight, in the axis of a fleshj^ albu- men, and equalling it in length ; cotyledons oblong, sub-foliaceous ; radicle short, superior. PRINCIPAL GENERA. * Cornus. * Bentkamia. * Aucuba. * Griselinia. [Coniecc, as re-classified by Bentham and Hooker fil. for the ‘ Genera Plantarum,’ Contains many more exceptional genera than are included in former arrangements of the order. They are thus disposed : — 476 CXY. CORNERS. Flowers hermaphrodite. — Alangium, Marlea, Curtisia, Corolcia, Cornus, Mastixia. Flowers unisexual ; leaves opposite. — Aucuba, Garry a} Flowers unisexual ; leaves alternate. — Griselinia, Kaliphora, Nyssa, Toricellia. — Ed.] Cornea were formerly included in Caprifoliacea ; they are very near Araliacea (see these families) ; they also approach Umbelliferee in the epigynous polypetalous and isostemonous corolla and its aestiva- tion, in the pendulous anatropous ovule, albuminous embryo, and umbelled or capitulate inflorescence. Cornel. Kernel (mag,). Cornel. Seed (mag.). Cornel. Fruit cut vertically (mag.). Cornel. Cornel. Fruit. Pistil and calyx (mag.). Umbelliferee are separated from Cornea by their two styles, dry fruit, minute embryo, and alternate cut leaves with dilated petiole. The connection of Cornea with Hamamelidea is noticed in the account of the latter family. Cornea almost exclusively belong to the northern hemisphere ; they inhabit especially the Himalayas [and Japan], and the temperate and cool regions of America; they are very rare in tropical America. Griselinia and Corokia belong to New Zealand ; [ Curtisia is South African]. 1 See order Gcirryacece, p. 479. — Ed, CXVI. GARRYACEiE. 477 The wood of Cornea is extremely hard ; [that of Cornus being used in the manufacture of gun- powder]. The bark of Dogwood, especially of Cornus Jlorida, is bitter and astringent, and yields a principle ( corniiin ), which is administered in North America instead of quinine. The drupes of C. mascula have an acid-sweet taste, and possess astringent properties. [They are used in making sherbet in the East.] The set *d of C. sanguined contains a fixed oil, useful in the manufacture of soap. The C. ( Ben - thamia) fragifern is a shrub of the Himalayas and Japan, the fruits of which resemble a strawberry, and have ‘an agreeable taste. The Aucuba also comos from [the Himalayas and] Japan, and is extensively cultivated in Europe for its coriaceous variegated and persistent leaves. CXVI. GARRYACEIE, Endlicher. Garnja. Oarrya. Collateral ovules Single ovule (mag.). (mag.). G. elliptica. Ganya Fruit. Seed (mag.). (mag.) Gat rya dhptica J . 478 CXVI. GARRYACEiE. Garrya. Z flower closed (mag.). Garry a. Z flower open (mag.). Garry a. Vertical section of fruit (mag.). Garry a. Anther, inner face (mag.). Garrya. Garrya. Anther, Transverse section of seed, dorsal face showing the central embryo (mag.). (mag.). Garrya . Transverse section of ovary, Garrya. showing the arrangement of the Embryo ovules and embryo (mag.). (mag.). & 'immond.sia. 9 flower (mag.). Simmondsia. Z flower (mag.). Simmondsia. Tiansverse section of ovary (mag.). Simmondsia. Pistil (mag.). Stem woody, brandies 4-sided. Leaves opposite, shortly petioled, entire, penninerved, evergreen ; petioles united at the base ; stipules 0. Flowers dioecious, arranged in little groups ( Simmondsia ‘), or in long axillary catkins, ternate in the axils of decussate and coherent bracts {Gamja). $ : Perianth calycinal, of 4 linear sub-meuibranous spreading ( Garrya ) or 5 ( Simmondsia ) sepals. Stamens 4, alter- nate with the sepals {Garrya), or 10-12 {Simmondsia')-, filaments free, equal; anthers introrse, basifixed, of 2 opposite cells opening longitudinally. ? : Perianth supe- rior, of 2 setiform lobes, or without apparent lobes {Garrya), or replaced by involucrate bracts {Simmondsia). Ovary inferior, 1-8-celled ; styles 2 3, alternate with the perianth-lobes, covered with stigmatic papillae ; ovules solitary or gemi- nate, suspended by funicles from the top of the cell, anatropous. Fruit a berry {Garrya) or capsule {Simmondsia), crowned by the persistent styles. Seeds 2, 1 Simmondsia is now placed in Bvxcce. — Ed. CXVII. CAPRIFOLI ACEiE. 479 pendulous, oblong ; testa thin, transversely rugose ; raphe prominent and lateral ; albumen copious, fleshy. Embryo minute, straight, axile; cotyledons hypogeous in germination ; radicle superior. PRINCIPAL GENERA. * Garrya [see Cornea, p. 47G.] Simmondsia [see Bvxea\ The affinities of Garrya are obscure. A. de Jussieu mates the same observations as on Gunneracea, and places it between Gunnera and Cornea. Like the latter, Garrya has epigynous stamens, suspended and anatropous ovules, a fleshy fruit, a minute embryo at the top of an abundant albumen, a woody stem, and opposite leaves. As in Gunnera, the styles are stigmatiferous throughout their length. Garrya approaches Hamamelidea in the inferior ovary, the pendulous anatropous ovule, the two distinct styles, the albu- minous and axile embryo, and the woody stem ; but Hamamelidea have frequently petals, and are poly- androus, the ovary is 2-celled, the fruit a septicidal capsule, the embryo large, and the leaves are alternate. Garrya elliytxca grows in Mexico and California [and G. Fadyeni in Jamaica and Cuba]. There is nothing to be noticed respecting their useful properties. CXVII. CA PRIFOL I A CEfE. (Caprifolia, A. L. de Jussieu. — Caprifoliacea:, De Candolle. — Caprifoliacea: and Sambcce.e, Kunth. — Caprifoliacea: and Viburnea:, Bavtling. — Lonicerea:, Endlicher.) Corolla monopetalous, epigynous, isostemonous, imbricate in bud. Stamens 5-4, insrrtnl on the corolla. Ovary with 2-5 one- or many-ovuled cells. Ovules pen- dulous, anatropous. Fruit a berry. Embryo albuminous. — Leaves opposite, exsti- pulate. Plants with a woody or partially woody stem, very rarely herbaceous perennials. Leaves opposite ; stipides absent, sometimes represented by filiform or glandular appendages, situated at the base of the petiole. Flowers perfect, regular or irregular; inflorescence various, generally definite. Calyx superior, 5-fid or -toothed. Corolla superior, monopetalous, tubular or infundibuliform or rotate ; limb 5-fid, regular or ringent, imbricate in bud. Stamens inserted on the corolla-tube, alter- nate with its lobes; filaments filiform, equal or didynamous ; anthers introrse, 2- celled, dehiscence longitudinal. Ovary inferior, 2-5-celled ; style terminal, some- times filiform with a capitate undivided or bilobed stigma, sometimes nearly or quite obsolete, with 3-5 stigmas ; ovules sometimes solitary and pendulous near the top of the cell, sometimes many, 2-seriate at the central angle, anatropous. Berry several-celled, rarely 1-celled by the disappearance of the septa. Seeds inverted ; testa bony or erustaceous, raphe dorsal or ventral. Embryo straight, occupying the axis of a fleshy albumen ; radicle superior. 480 CXYII. CAPRirOLIACE^:. Sub-order I. L0NICERE2E. Honeysuckle. ( Lonicera ijlauca,) open (mag.). ? Honeysuckle. Pistil and calyx (mag.). Honeysuckle. Fruit. iSymphoricarpus. Ovary cut vertically (mag.). Honeysuckle. Diagram. Honeysuckle. Ovary cut vertically (mag.). Symphoricarpus . Diagram of a 3-flowered cyme, furnished with three bracteoles. Symphorkai'pus Ovary cut transversely, with four cells, two of which are sterile (mag.). Corolla tubular, limb regular or irregular. Style filiform, raphe. PRINCIPAL GENERA. Seeds with a dorsal Triosteum. * Symphoricarpus. * Abelia. Linnaea. Lonicera. * Leycesteria. Diervilla. Alseuosmia. * Weigelia. 481 Viburnum. Pistil and calyx (map.). Guelder Rose (Viburnum Opulus). Elder (Sambucus nigra). Flowering corymb. Elder. Berry crowned by the calyx (mop.). CXVII. CAPRIFOLIACEiE. Sub-order II. SAMBUCE2E. Viburnum. Flower (mag.). Viburnum. Seed (mag.). Viburnum. Diagram. Elder. Flower (mag.). Viburnum. Ovary cut transversely (mag.). Elder. Diagram. 482 CXVII. CAPRIFOLIACEiE. Elder ( Sambucus nigra). Ripe fruit. Elder. Seed entire and cut vertically (mag.). Corolla regular, rotate. Stigmas 3, sessile. Seeds with a ventral raphe. PRINCIPAL GENERA. * Viburnum. * Sambucus [Adoxa, see p. 474]. We shall hereafter indicate the affinities of Caprifoliacea with Valerianea and Dipscicece. The affinity with JRubiacea is much more obvious ; it is founded on the epigynous isostemonous corolla, the several-celled ovary, the axile embryo in a thick fleshy albumen, the opposite leaves and knotty stem. Almost the only difference is in the imbricate corolla and the absence of stipules. The sub-order of Sambneca is closely allied to Cornea, which only differ in the many petals, valvate in bud. The same affinity may be noticed with Araliacea and Umbelliferce ; but these, besides the polypetalous and valvate corolla, differ from Caprifoliacece in the alternate leaves and the umbelled or capitate inflorescence. An analogy has also been pointed out between the Hydrangea (of Saxifragea ) and Viburnea. Caprifoliacea inhabit the temperate regions of the northern hemisphere, especially central Asia, the north of India, and of America. A small number [many Viburnums] inhabit the intertropical zone, pre- ferring the mountains, where the temperature is colder. The Elder, a cosmopolitan genus, is represented by a very few species in the southern hemisphere. \Alseuosmia is a New Zealand genus, remarkable for the intensely sweet odour of its flowers]. The flowers of most Caprifoliacea exhale a sweet odour, especially after sunset. They contain an acrid, bitter and astringent principle, which has caused some to be placed among medicinal plants. The berries of the Honeysuckle ( Lonicera Caprifolium ) are diuretic ; those of L. Xylosteum are laxative. The stems of Diervilla canadensis are employed as a depurative in North America. The roots of the common Symphoricarpos purviflora, a Carolina shrub, are used by the Americans as a febrifuge. All these species are cultivated in European gardens. The common Elder ( Sambucus nigra) produces numerous berries, which are cooked and eaten in Germany [and also extensively used in the manufacture of wine]. Pharmacists prepare from these berries, as also from those of S. Hbulus, an extract, or purgative rob. The dried flowers of the common Elder are an excellent sudorific, employed against snake-bites; they are also used to give to ceitain wines a Muscat flavour. The Linnaa borealis, an elegant evergreen herb, abounds in the forests of Sweden, the country of Linnmus, to whom it has been dedicated. Swedish doctors recommend its stem and leaves as diuretics and sudorifics. CXVIII. RUBIACEiE. 483 CXVIII R UBIA CEsE. (Rubiace^e, A. L. de Jussieu. — Lygodysodeacejs et Rubiace^e, Bartling. — Cincho- nacEjE, Lygodysodeace^e et Stellate, Lindl.) Madder ( Rubia tinctorum). Madder. Flower (mag.). Madder. Flower cut vertically (mag.). Oalium Aparine. Diagram. Coffee. Berry (mag.). Coffee. Seed (mag.). Dorsal face. Coffee. Seed (mag.). Ventral face. Coffee. Transverse section of the seed (mag.). Galium. Pistil (mag.). Galium. Fruit cut vertically (mag.). Madder. Ovary cut transversely (mag.). Coffee. Seed. Dorsal face cut to show the minute embryo at the base of the albumen (mag.). i i 2 484 CXVIII. RUBIACEiE. Leptodermis. Ovary cut ver- tically, showing a trellised septum (mag.). Leptodermis. Embryo with involute cotyledons (mag.). Leptodermis. Transverse section of fruit, showing the involute arrange ment of the cotyledons (mag.). Bouvardia. Vertical section of ovary (mag.). Luculia. Flower seen from above, with convolute sestivation (mag.). Luculia . Diagram. Coprosma. Berry with two nuts, cut transversely. Coprosma. $ flower (mag.). Cinchona. Capsule opening at its base by septicidal dehis- cence (mag.). Cinchona. Winged seed. Ventral face. Coprosma. 9 flower (mag.). CXVIII. EUBIACEiE. 485 Corolla monopetalous, epigynous, isostemonous, (estivation valvate or [ imbricate or] contorted. Stamens 4-6, inserted on the corolla-tube. Ovary inferior , bi-pluri- locular; ovules anatropous, or semi-campylotropous. Embryo almost always albu- minous.— Leaves opposite, stipulate. Trees, shrubs or herbs, usually with tetragonous knotty jointed stems. Leaves opposite [or whorled], simple, usually entire, stipulate; stipules various, sometimes free, sometimes united to the leaf or the neighbouring stipule, sometimes leaf-like, and appearing to form a whorl with the leaves, but distinguished by the absence of buds. Flowers usually $ , very rarely unisexual, sometimes sub-irregular, generally cymose, panicled or capitate. Calyx superior or semi-superioi', tubular, or deeply cut or 2-6-fid or -toothed or 0. Corolla superior, monopetalous, infundi- buliform or liypocrateriform or rotate [rarely 2-labiate, Henriquezia, Dichilanthe, Ac.] ; limb of 4-6 segments, usually equal, aestivation valvate, rarely contorted or imbricate. Stamens 4-6 [2 in Carlemannia and Sylvianthus~\, inserted on the tube, very rarely coherent ; anthers introrse, bilocular, dehiscence longitudinal, distinct, very rarely cohering in a tube. Ovary inferior, bi-pluri-locular, crowned by a more or less developed fleshy disk; style simple bifid or multifid, stigmatiferous at the top or inner surfaces or sides of the arms; ovules solitary or 2 or more in each cell, erect or pendulous, or ventrally attached to the central angle or septum of the cell, or to a prominent placenta, anatropous or semi-campylotropous. Fruit a capsule, berry or drape. Seeds in various positions; albumen fleshy or cartilaginous, or almost horny, rarely scanty or 0, sometimes involute. Embryo straight or curved, in the base or axis of the albumen ; cotyledons flat, rarely involute ; radicle usually inferior. [Sketch of the arrangement of Rubiacece into tribes, as recently constructed for the ‘ Genera Plantarum ’ : — SERIES A. Ovules indefinite. Sub-series I. Fruit dry, capsular or indehiscent. * Flowers collected in a globose head } Tribe I. Naccle.e. — Corolla narrow, infundibuliform, lobes never contorted. Stigma mncli exserted, entire. Sarcocephalus, Cephalantlius, Adina, Nauclea, Uncaria, &c. * Flowers not collected into spherical heads. Tribe II. Cinchonea:. — Corolla-lobes valvate, imbricate or contorted. Capsule 2-celled, seeds winged. Cinchona , Cascarilla, Ladenbergia, Bouvardia, Manettia, Hindsia, Hillia, Exo- stemma, Luculia , &c. Tribe III. Henriqueziea:. — Corolla 2-labiate. Ovules geminate. Seeds very broadly winged, exalbuminous. Henriquezia , Platycarpum. Tribe IV. Condamixie.®. — Corolla-lobes valvate. Capsule 2-celled. Seeds numerous, minute, not winged. Trees and shrubs. Condaminea, Portlandia, BUilcia , Pinkney a, &c. Tribe V. Roxdeletiea:. — Corolla-lobes imbricate or contorted. Seeds very numerous, albuminous, not winged, llondeletia, Wendlandia, Augusta , Deppea, Sipanea, &c. Tribe VI. Hedyotidea:. — Corolla-lobes valvate. Ovary 2-4-colled. Seeds numerous, 1 .Vee also under tribes Gardcniece and MurindctB. 486 CXYIII. RUBIACEiE. angular, not winged. Herbs ; rarely small slirubs. Dentella, Argostemma, Pentas, Hedyotis, Oldenlandia, Houstonia, Kadua, Ophiorhiza, Carlemannia, &c. Sub-series II. Fruit fleshy or coriaceous, indehiscent. Tribe VII. Muss®nde®. — Corolla-lobes valvate. Seeds very numerous, minute, usually angled. Musscenda, Isertia , Gonzalea, Adenosacme, Urophylhzn, Sabicea, Coccocypselum, &c. Tribe VIII. Hamelie®. — Corolla-lobes imbricate or contorted. Seeds very numerous, minute, angular. Hamelia, Hoffmannia, Bertiera, Gouldia, &c. Tribe IX. Catesb®e®. — Corolla-lobes valvate. Seeds many, rather large, compressed. Catesbcea, Pentagonia, &c. Tribe X. Gardenie®. — Corolla-lobes contorted. Seeds few or many, large and compressed, or smaller and angled. Aliberta , Aviajoua, Duvoia, Posoqueria, Tocoyena, Burchellia , Weber a, Randia, Gardenia, Genipa, Pouclietia, Petunga, Biplospora, &c. SERIES B. Ovules geminate in each cell. (See also Tribe III. Henriquezia) . Tribe XI. Cruckshankie®. — Corolla-lobes valvate. Ovary 2-celled, ovules numerous. Capsule 2-valved. Cruckshanlcia, Oreopolus. Tribe XII. Retiniphylle®. — Corolla-lobes contorted. Ovary 5-7-celled. Drupe with 5-7 pyrenes. Retiniphyllum, Kotchubcea. SERIES C. Ovules solitary in each cell. Sub-series I. Radicle superior. Tribe XIII. Guettarde®. — Corolla-lobes imbricate or valvate. Stamens inserted on the corolla- throat. Seeds pendulous from the top of the cell, usually exalbuminous, with a thickened funicle. Guettarda, Antirrlicea, Macliaonia, Timonius, Cliomelia, Malanea, Dicliilanthe, &e. Tribe XIV. Knoxie®. — Corolla-lobes valvate. Stamens inserted on the thi’oat of the corolla. Seeds compressed, albuminous. Knoxia, Pentanisia. Tribe XV. Chiococce®. — Corolla-lobes valvate or imbricate. Stamens inserted at the base of the corolla. Seeds albuminous. Eriilialis, Chiococca, Chime , &c. Tribe XVI. Alberte®. — Corolla-lobes contorted. Stamens inserted on the thi’oat of the corolla. Seeds albuminous. Cremaspora, Alberta, &c. Tribe XVII. Vanguerie®. — Corolla-lobes valvate. Stamens inserted on the throat of the corolla. Seeds albuminous. Plectronia, {Cantliium), Vangueria, Cuviera, &c. Sub-series II. Radicle inferior. * Corolla contorted. Tribe XVIII. Ixore®.— Ovules attached to the middle or about the middle of the cell, rarely basilar. Ixora, Pavetta, Coffea, Myonima, Strumpfia, &c. * * Corolla valvate. f Ovules attached to the septum at or below the middle. Tribe XIX. Morinde®. — Flowers often united by the calyx-tube into heads. Morinda, Damnacaiithus, Prismatomeris, &c. t t Ovules basilar, erect, anatropous. Tribe XX. Coussare®. — Ovary 1 -celled, or with an evanescent septum. Fruit 1-seeded. Coussarea, Faramea, &c. CXVIII. RUBIAOEiE. 487 Tribe XXI. PsyciioTRLEjE. — Stamens inserted on tlie throat of the corolla. Stigma entire or style-arms short. Fruit indehiscent. Psycliotria, Pali courea, Rndgea, Declieuxia, Geophila Cephalitis , Lasianthus, Suteria, Saprosma, Psatliyra, &c. Tribe XXH. P^derie*. — Stamens inserted on the throat or base of the corolla. Ovary 2-5-celled; style-arms filiform. Fruit capsular or of 2 cocci. Pcederia, Lygodisodea, Ilamil- foniu, Leptodermis, &c. Tribe XXIII. Axtiiosperme,e. — Flower usually unisexual. Stamens usually inserted at the base of the corolla. Ovary 1-4-celled. Style entire, or arms filiform. Fruit a berry, or in- dehiscent. Putoria, Crocyllis, Mitchella, Serissa, Coprosma, Anthospcrmum, Phyllis, Opercularia , Pnmax, &c. t t t Ovules attached to the septum, amphitropous. Tribe XXIV. Spermacoce.e. — Herbs or small shrubs. Leaves usually opposite and stipules setose. Triodon, Diodia, Gaillonia, Spermacoce, Emmeorhiza, Mitracarpum , Richardsonia, Sec. Tribe XXV. Garie.e. — Herbs. Leaves and stipules similar, forming a whorl. Callipeltis, Yaillantiu, Ruhia, Galium, Asperula, Crucianella, Sherardia, &c. — Er>.] We have indicated the affinity of Rnbiacecc with Caprifoliacece and Dipsacece (see these families). The Ruhia, , fr with many-ovuled cells are allied to Loyaniaceee in all their characters, and are only dis- tinguished by their epigyny. Gentianeee, Oleinece, and Apocynece also approach them, although hypo- gvnous, in the opposite leaves, aestivation, isostemonous corolla and the presence of albumen. Some Gt'iwaccrr also approach the section Coffeacece, as shown by their whorled or opposite leaves, the development of their receptacular cupule, the varied nature of their fruit, and the presence of albumen ,• but they are widely separated by the didynamous stamens, unilocular ovary and parietal placentation. Rubin e«e m.' tly inhabit intertropical regions ; [but Galiecc are almost exclusively temperate]. The principal medicinal species of this family are exotic; and of these the most important are Quinine and Ipecacuanha. The latter is the root of a little shrub, a species of Cephaelis, inhabiting the virgin forests of ltra7.il ; the bark of this root has an acrid taste and a nauseous smell ; it contains an alkaloid (emetine), but in practice the root is preferred to the alkaloid. This medicine is invaluable in dysentery, astbma, whooping-cough, and especially puerperal fever. Quinine is yielded by the bark of several species of Cinchona : they are evergreen trees or shrubs, inhabiting the valleys of the Andes of Peru, at heights carving from 4,000 to 11,000 feet above the level of the sea. The bark is bitter, and contains two organic alkalis (quinine and cinchonine), united to a special acid; it contains, besides colouring matter, a fatty matter, starch, gum, &c. The preparation of these vegetable alkalis is the most important service that chemistry has rendered to medicine since the beginning of the nineteenth century, for without ex- hausting the patient, enormous doses of quinine may be administered in a concentrated form, effecting the most difficult cures. Quinine is the most powerful specific in cases of intermittent fevers (of which mar>h miasma is the most common cause) ; acting, not by neutralizing the miasma as a counter-poison would do, but by strengthening the system, and thus enabling it to resist the incessant attacks of the morbific cause. Besides its virtues as a febrifuge, quinine is a first-class tonic in hastening convalescence, and restoring the digestive functions. Lastly, Cinchona bark is used outwardly as an antiseptic to arrest the progress of gangrene ; its antiseptic properties are however not due to its febrifugal principle, but to the astringent principles with which the bark abounds. The American genus Chiococca, like Cephaelis, belongs to the uniovulate section, some species of which po-^ess a root reputed valuable against snake-bites; this root, known as ca'inga, is used in Europe as a diuretic and purgative in cases of hydrophobia. Of all the Rubiacea of the Old W orld the Coffee is the most noticeable ; forming ns it does, with cotton and sugar, the staple of the maritime commerce of Europe. The Coffee is an evergreen shrub, a native of Abyssinia, which waa introduced three centuries ago into Arabia, towards the close of the seventeenth century into Java, and finally naturalized in 1720 in the Antilles. The seed of the Coffee melds, besides various oily, albuminous and gummy matters, a bitter principle containing an organic crystallizable alkali named caffein, associated with a peculiar acid. A slight roasting develops in this 488 CXIX. VALERIANEiE. seed that agreeable aroma and taste of which advantage has been taken to prepare a drink which specially stimulates the functions of the brain. To those who do not habitually drink it, coffee may become a useful medicine ; it succeeds in the treatment of intermittent fevers ; it relieves asthma, and it is said gout also ; and it counteracts the effects of wine or of opium. Its most prevalent use as a medicine is in curing headache. Some indigenous Rubiacece were formerly used as medicines ; thus an infusion of the flowering tops of the Yellow Galium was given to nurses to increase the secretion of milk, and as an antispasmodic. They are now employed in many countries, and especially in England, to give a yellow colour to cheese. The Squill anev (Asperula cynanchica) the leaves of which contain a bitter slightly astringent principle, was used in cases of angina. Asperula odorata, the perfume of which comes out when dried, was praised as a tonic and vulnerary ; it is now only used to give a bouquet to Rhine wines, and gardeners cultivate it as an edging. Madder ( Rubia tinctorum) grows wild in the Mediterranean region ; it is cultivated at Avignon, in Alsace, and in Zealand, on account of the red colouring matter contained in the root, and which is largely used for dyeing fabrics. This dye, in a pure state, is called alizarine. It also exists, but in less quantity, in the root of the Chaya-ver, a Rubiaceous plant, which is cultivated on the Coromandel coast. [Probably the Bengal Madder ( Munjeet ) is here alluded to ; it is cultivated throughout India.] [The above notice of the useful Rubiaceee must be largely extended ; very many species contain bitter febrifuge principles, especially Exostemma , Rondeletia, and Condaminea in South America ; as also Rink- neya in Carolina, Hymenodictyon in India, and the Ophiorhiza Munyos (Earth-gall) in the Malayan Islands. Gambir, one of the most important of astringents, is the produce of Uncaria Gambir. The American Richardsonia scabra and others yield one valuable false Ipecacuanha, and the Psychotria emetica another. The fruit of the Indian Randia dumetorum is a powerful emetic. Amongst edible fruits the Genipap is that of Genipa americana, the native Peach of Africa is the fruit of Sarcocephalus esendentus, and the Voavanga of Madagascar that of Vangueria edtdis. — Ed.] CXIX. VALERIANEyE. (Dipsacearum sectio, A. L. de Jussieu. — Valerianea:, D. C. — Valerianacea, Lindl.) Corolla monopetnlous, epigynous, aestivation imbricate. Stamens 5-4-3-1, in- serted on the corolla-tube. Ovary 3- celled , two cells without ovules, the third 1-ovuled ; ovule pendidous, anatropous. Embryo exalbuminous. Annuals with slender inodorous roots, or perennials with a usually strong-scented rhizome. Leaves : radical fascicled ; cauline opposite, simple ; petiole dilated, ex- stipulate. Flowers perfect, or unisexual by arrest, in a dichotomous cyme or close corymb, or solitary in the forks, and bracteate. Calyx superior, sometimes cut into 3-4 accrescent teeth, or reduced to a single tooth ; sometimes of bristles which are involute before flowering, when they unfold into a plumose deciduous crown. Corolla monopetalous, inserted on a disk crowning the top of the ovary, tubular-infundibuli- form ; tube regular, or produced at its base into a knob or hollow spur ; limb with 5-4-3 equal or sub-labiate lobes, aestivation imbricate. Stamens inserted above the middle of the corolla- tube, alternate with its divisions, rarely 5, usually 4 by sup- pression of the posterior stamen, or 3 by suppression of the posterior and a lateral stamen ; sometimes the posterior only is developed ; filaments distinct, exserted ; anthers introrse, 2-celled, dehiscence longitudinal. Ovary inferior, 3-celled, two cells empty, the third fertile ; style simple, filiform ; stigma undivided or 2-3-fid ; ovule solitary, pendulous from the top of the cell, anatropous. Fruit dry, indehis- CXIX. VALERIANEiE. 489 Valerian. Flower (mag.). Valerian. Vertical section of flower (mag.). Valerian. Pistil (mag.). Valeriana officinalis. Fedia . Diagram. Fedia. Fruit of flowering branch, entire and cut vertically (mag.). Fedia. Pistil (mag.). Fedia. Fruit of the lateral flowers (mag.). Ftiha. Flower (mag.). Fedia. Trunireim* section of fruit. Fedia corn ucopice. 490 CXES. VALERIANEiE. Centt'anthus. Diagram. Cent ran (hits. Centranthus. Fruit cut Vertical section of transversely (mag.). seed (mag.). Centranthus. Transverse sections of flower and ovary (mag.). Centranthus . Ripe fruit crowned by thie calyx (mag.). cent, coriaceous or membranous, 3-celled or 1 -celled by suppression of the empty cells, always 1-seeded. Seed inverted. Embryo straight, exalbuminous ; radicle superior. PRINCIPAL GENERA. • Valeriana. * Centranthus. * Fedia. * Valerianella. Nardostaehya. Patrinia. The family of Valericmeee is very near Dipsacece ; as indicated by their opposite leaves, irregular terminal flowers, epigynous tubular staminiferous corolla, imbricate (estivation, solitary pendulous nna- tropous ovule, and simple style. The diagnosis consists in the corymbiform cyme, the three-celled ovary, and the exalbuminous seed. Valerianece approach Composites in their toothed or plumose calyx, epigynous staminiferous corolla, and solitary exalbuminous seed; they are separated from it by their inflorescence, aestivation, nervation of the corolla, free anthers, three-celled ovary and pendulous ovule. They offer some analogy with Caprifoliaceee in the terminal inflorescence, opposite leaves, aestivation, CXX. CALYCERE2E. 491 upigynous corolla, several- celled ovary and pendulous ovule; but the latter differ in the woody stem, axile placentation, fleshy fruit and albuminous embryo. Valerianece are mostly natives of the Old World, and principally of Central Europe, the Mediter- ranean and Caucasian regions, whence some species have advanced eastwards into Siberia, Nepal and Japan. They abound on the Cordilleras of South America, extending abundantly into Chili, Fuegia, and the Falkland Islands. They are very rare in North America. Valerianece possess medicinal qualities known from an ancient period ; but these properties are much more marked in the perennial than in the annual species, where they have not time to be elaborated. Their rhizomes contain a volatile oil, a peculiar acid, a bitter principle and starch ; their taste is acrid and their odour penetrating. Valerianece now rank at the head of the vegetable antispasmodics ; the principal species is the Valeriana officinalis, which grows in Europe in damp meadows. Celtic Nard is yielded by two Alpine species [ V. celtica and Salivncd] which inhabit the limits of the eternal snows [in Styria and Carinthia], whence their roots are sent to Turkey, and largely used to scent baths .and as a medicine. It also enters into the very complicated electuary called theriaque. The Spikenard of the ancients, Indian Nard of the moderns, Nardostachys Jatamansi, is greatly esteemed in India on account of its aroma and stimulating properties. In the annual Valerianece the leaves are not bitter like those of the perennial species ; this bitterness is replaced by a somewhat vapid mucilage, relieved by a slight quantity of volatile oil, which renders them edible ; such are the Valerianellas [species of Fulin', Lamb’s Lettuce, Corn Salad, of which the young leaves are used for salad. CXX. CALYCEREJE. (Calycerea:, R. Br. — Boopideaj, Cassini.) Feov. ers in an involucrate capitulum. Corolla epigynous, monopetalous, isoste- mn in i ns, (estivation valvate. Anthers syngenesious at the base. Ovary 1 -celled, 1 -ovideil ; ovule pendulous, anatropous. Embryo albuminous. Annual or perennial herbs. Leaves alternate, sessile, without stipules. Inflo- rescence in a capitulum, with an involucre of one or more series of bracts. Flowers sessile on a paleaceous or alveolate receptacle, sometimes all fertile, sometimes mixed with flowers of which the pistil is suppressed, the fertile sometimes cohering below. Calyx of 5 usually unequal segments, persistent. Corolla inserted on an epigynous disk, monopetalous, regular; tube elongated, slender; limb 5-fid, segments with a dorsal and two sub-marginal nerves, aestivation valvate. Stamens 5, inserted at the bottom of the corolla-tube, and alternate with its segments ; filaments coherent to the corolla-tube throughout its length, free near the throat, and monadelphous or separate ; anthers introrse, bilocular, cohering at the base, free at the top, dehiscence longitudinal. Ovary inferior, 1 -celled, 1-ovuled, crowned by a conical disk uniting the base of the corolla to that of the style, lining the corolla-tube, and dilating near the throat into 5 glandular areolm ; style terminal, simple, exserted, tip clavate and glabrous; stigma terminal, globose; ovule pendulous from the top of the cell, anatropous. Achkxes usually crowned by the accrescent calyx and marcescent corella, sometimes connate. Seed inverted, raphe longitudinal, clialaza apical. Embryo straight, in the axis of a fleshy albumen. * Cnlycera. GENERA. * Boopis. * Acicarpha. 492 CXX. CALYCEREiE. Calycera baham'di folia. Calycera. Flowers and bracts (mag.)- CXXI. DIPSACEiE. 493 Calycera. Calycera. Calycera. Calycera. Calycera. Ripe Frnit crowned by the Anatropous ovule Cyllndric embryo Seed cut frnit. accrescent calyx. (mag.). (mag.). vertically (mag.). Cahjcerete is closely allied to Composite, but is distinguished by the nervation of the corolla, monadel- phous filaments, position of the ovule, absence of collecting hairs, globose stigma, and albumen. It is equally near Dipsacea, from which it differs in the alternate leaves, valvate aestivation, and monadel- phous and syngenesious stamens. The species are not numerous, and mostly inhabit temperate South America. CXXI. DIPSACEIE. (Dipsacea:, A. L. de Jussieu.) Corolla monopetalous, epigynous, (estivation imbricate. Stamens 4, inserted on the ti>l" of the corolla. Ovary 1 -celled, 1 -ovuled, adnate to the receptacular ■ tube throughout its length, or only at the top ; ovule pendulous, anatropous. Embryo albuminous. Annual or perennial herbs. Leaves opposite, rarely whorled, exstipulate. Flowers perfect, more or less irregular, gathered into a dense capitulum, involu- crate, on a naked or paleaceous receptacle, very rarely in a whorl in the axil of the upper leaves, and each furnished with a calyciform obconic involucel, the tube of which is pitted at the top or furrowed lengthwise, and its limb scarious. Calyx superior, cup-shaped, or in setaceous segments forming a naked or bearded plumose crown. Corolla superior, monopetalous, tubular, inserted at the top of the recep- tacular tube; limb 5-4-fid, usually irregular, sometimes labiate, aestivation imbricate. Stamens 4, often unequal, rarely 2-3, alternate with the corolla-lobes, inserted at the bottom of the tube ; filaments exserted, distinct, or rarely united in pairs ; anthers introrse, 2-celled, dehiscence longitudinal. Ovary inferior, 1-celled, 1-ovuled, some- times tree in a receptacular tube which is closed at the top, sometimes adhering to this tube throughout its length, or at the top only ; style terminal, filiform, simple, united at its base to the neck of the receptacular tube; stigma simple, clavate, or very shortly and unequally 2-lobed ; ovule pendulous from the top of the cell, ana- tropous. Utricle enclosed in the receptacular tube and the involucel. Seed inverted, testa membranous, hardly separable from the pericarp. Embryo straight, in the axis of a fleshy scanty albumen ; radicle superior. GENERA. * Dipsacue. * Morinn. * Cephularia. Knautia. * Scabiosa. Pteroceplialus. 494 CXXI. DIPSACEiE. Scabious ( Scabiosa atropurpurea). Capitulum. Scabious. Fruit (mag.). Scabious. Fruit cut vertically (mag.). Scabious. Scabious. Scabious. Dipsacus . Dipsacus. Unopened capitulum, seen Disk flower Disk flower, cut vertically Fruit Fruit cut from behind. (mag.). (mag.). (mag.). vertically (mag.). Dipsaccce are so nearly allied to Valericinece that A. L. de Jussieu placed them in the same family (see Valerianece). They resemble Composites in their inflorescence, which in all the genera except Morinci is an involucrate capitulum, in their usually paleaceous receptacle, epigynous staminiferous corolla, one-celled ovary crowned by a toothed or plumose calyx, and solitary anatropous ovule ; they differ in the separate involucel of each flower, imbricate aestivation, nervation of the corolla, free anthers, pendulous ovule, simple style, terminal stigma, and albuminous embryo. They approach Calt/cereee in CXXII. COMPOSITE. 495 their inflorescence, in the epigynous staminiferous tubular corolla, one-celled ovary, solitary pendulous ovule, and albuminous seed ; but the opposite leaves, imbricate aestivation, and free anthers render the identification easy. Bronguiart has placed Dipsacem and Caprifoliacece in the same class ; their analogies are founded on their epigynous corolla, ajstivatiou, pendulous and auatropous ovule, axile embryo in a fleshy albumen, and opposite leaves; but the inflorescence, 1-celled ovary, solitary ovule, and apical placentation form a promi- nent line of demarcation. Dipsacea inhabit temperate and hot regions of the Old World and of Africa situated beyond the tropics. The rhizome and leaves of some Dipsacece are medicinal, containing a bitter-sweet slightly astrin- gent principle. Scabious is administered as a depurative in cutaneous disorders. The roots of the Teasel ( Dipsacus sylvcstri s) are diuretic and sudorific; its leaves and root were formerly considered to be a remedy for hydrophobia. The capitula of Dipsactts fullonum , a species of which the origin is unknown, are furnished with recurved hard and elastic bracts, which have led to their employment by clothiers for carding woollen and cotton fabrics ; hence its vulgar name of Fuller's Teasel. CXXII. COMPOSITE. (Composite, Vaillant. — Synanther^e, L.-C. Richard.) Dandelion. Capilulnm (ligulidoral). Dandelion. 8 floret with ligulatc corolla, and calyx forming a tuft of simple hairs, shortly stipitatc when young (mag.). Dandelion. Unexpanded head, fur- nished with a calyculus of accessory bracts, 2- seriate and reflexed. D.c cords of the conducting tissue, C p ; Car, ovary ; L c, calyx ; D c, epigynous disk ; R, raphe ; Ch, chalaza ; M, micropyle. 496 CXXII. COMPOSITE. Salsify. Chicory. Fruit crowned by a Fruit crowned by calyx with a feathery a short tuft, and paleated calyx shortly stipitate. (mag.). Chicory. Fruit cut vertically, showing the upright seed (mag.). Nassauvia. Flower with bilabiate corolla (mag.). Nassauvia. Corolla and androecium laid open (mag.). Nassauvia. Spike (labiatifloral). Nassauvia. Stamen (mag.). Nassauvia. Ovary and portion of style (mag.). Nassauvia. Style (mag.). Flowers in an involucrate capitulum, Corolla epigynous, monopetalous, isoste- monous, valvate in aestivation. Anthers syngenesious. Ovary 1 -celled, 1 -ovuled ; ovule erect, anatropous. Embryo exalbuminous. Plants generally perennial, mostly herbaceous, sometimes woody below, rarely arborescent. Leaves generally alternate, often very much cut, rarely compound, exstipulate, but sometimes furnished with stipuliform auricles. Capitula some- times few-fiowered, very rarely 1 -flowered, generally many-flowered; inflorescence indefinite, but forming collectively a definite inflorescence, in a corymb, cyme or glomerule, and composed of flowers inserted on a common receptacle. Receptacle sometimes furnished with bracteoles ( palece , scales, bristles, fimbrillce), sometimes naked and smooth, or with small pits (foveolate) , or deeply pitted ( alveolate ), with entire or toothed margins, or cut into membranous segments, or covered with CXXII. COMPOSITE. 497 pentagonal areolae, that enclose the bases of the flowers. Involucre (peri- clinium) composed of one or many series of bracts ( scales or leaflets), sometimes furnished outside with accessory bracts ( calyculi ). Flowers , or $ or $ or neuter, sometimes all 2 in one capitulum ; sometimes ? , or neuter at the circumference, the inner § ; sometimes $ at the centre, and $ at the circumference; capitula some times exclusively composed of ? or S flowers, and then monoecious or dioecious. Calyx rarely foliaceous, generally scarious or membranous, sometimes cup-shaped, sometimes spread into a crown, entire toothed or laciniate ; sometimes divided into paleae, or teeth or scales or awns ; sometimes reduced to capillary hairs or bristles, which are smooth or scabrid or ciliate or plumose, and forming a tuft, either sessile or stipitate ; finally, sometimes reduced to a thin circular cushion, or even entirely wanting. Corolla epigynous, monopetalous, sometimes regular, tubular, 5-4-fid or -toothed, aestivation valvate ; sometimes irregular, either bilabiate or ligulate, each lobe furnished with two marginal nerves confluent in the tube. Stamens 5- 1, inserted on the corolla, and alternate with its divisions ; filaments inserted at the base of the tube, free above, rarely monadelplious, articulated towards the top; antlars 2-celled, introrse, cohering into a tube which sheaths the style, very rarely free, usually prolonged into a terminal appendage, cells often terminating in a tail at the base. Ovary inferior, 1 -celled, 1-ovuled, crowned with an annular disk which surrounds a concave nectary ; style filiform, undivided in the $ flowers, bifid in the ? and 5 flowers ; branches of the style, commonly called stigmas, convex on the dorsal surface, flat on the inner, furnished toward their tops, or outside, with short stiff hairs ( collecting hairs), and traversed on the inner edges by two narrow glan- dular (stigmatic) bands, constituting the true stigma ; style much shorter than the stamens before the opening of the flower, but rapidly growing at the period of fer- tilization, traversing the hollow cylinder formed by the anthers, and gathering, by means of the collecting hairs, the pollen destined to fertilize the newly opened neigh- bouring flowers. ? flowers furnished with stigmatic glands and collecting hairs ; the ? have stigmatic glands but no collecting hairs; the j have collecting hairs and no stigmatic glands ; ovule straight, anatropous. Achene articulated on to the common receptacle, generally sessile, pi’ovided with a basilar or lateral areola, indicating its point of insertion, often prolonged in a beak to the top. Seed erect. Embryo straight, exalbuminous ; cotyledons plano-convex, very rarely convolute (Robinsonia) ; radicle inferior. K K 498 CXXII. COMPOSITE. Sub-order I. LIGULIFLORiE. Tribe I. CichoracEuE. — Capitula formed of flowers with a ligulate irregular corolla (demi-florets) , all $ . Style with filiform branches, pubescent; stigmatic bands separate, and not half as long as the branches of the style. — Milky plants. Leaves alternate. PRINCIPAL GENERA. Andryala. Chondrilla. Picridium. Helminthia. Geropogon. Drepania. Hyoseris. Lapsana, &c. [For others, see Tribe XIII. of new classification, p. 505.] Vertical section of Cornflower, common receptacle (mag.). Style and stigma (mag.). Cornflower. 2 Floret (mag.). Cornflower. Ray flower, neuter, with an irregular corolla and abortive pistil. Cornflower. Corolla, andrcecium, style and stigma (mag.). Cornflower. Fruit (mag.). Cornflower. Pistil (mag.). Cornflower. Fruit cut vertically (mag.). Cornflower. Floret cut vertically (mag.)', showing the anther-tube traversed by the style. CXX1I. COMPOSITE. 490 Marigold. Capitulum seen from behind. Garden Marigold. (Tnbulifloral.) Capitulum with ray florets 9, lignlntc, 2-3-seriatc ; disk florets tubular. Marigold. Capitulum cut vertically, showing the g disk florets and the 9 ray florets. Marigold. Fruits. Marigold. Aclicnc. Marigold. Thistle. g floret. Floret (mag.). Sub-order II. LABIATIFLORiE. Corolla of the ? flowers generally bilabiate ; the S and ? flowers ligulate or bilabiate. Tribe II. MunsiACEyE. — Style of § flowers cylindric, or almost nodose ; stigmas obtuse, very convex and finely pubescent outside, equal, rarely 0. PRINCIPAL GENERA. * Chabrrea [&c., see Tribe XII. (p. 504)]. K K 2 * .Mutisia. 500 CXXII. COMPOSITE. Tribe III. Nassauviacea.1 — Flowers all $ . Style swollen at the base ; stigmas truncate, with a pencil of hairs at the top, and within separate prominent stigmatic bands. PRINCIPAL GENERA. Nassauvia. Moscliaria. Triptilion. Sub-order III. TUBULIFLOB.E. Capitula sometimes formed of flowers with a regular tubular corolla {florets ) all 5 , rarely irregular and sterile ; sometimes rayed, i.e. composed of tubular flowers occupying the centre (disk), and of ligulate flowers (demi-florets) which are 9 or neuter, occupying the circumference (ray). Tribe IV. Cynarea. — Capitula generally discoid. Style of the 5 swollen above, nearly always furnished with a pencil; arms free or cohering, pubescent outside ; stigmatic bands reaching the top of the stigma, and there uniting.— Leaves alternate. PRINCIPAL GENERA. Lappa. Tyrimnus. Galactites. * Silybum. Stoehelina. Arctium. * Xeranthemum. * Gazania, X.2 * Venidium, X. * Arctotis, X. * Osteospermum, IX. * Calendula, IX. Tribe Y. Senecionidea. — Capitula generally rayed. Style cylindric at the top, bifid in the $ flowers ; arms elongated, linear, truncate, or crowned with a pencil, above which they sometimes extend in a long appendage or a short cone ; stigmatic bands prominent, prolonged but not reaching to the pencil. — Leaves alternate or opposite. PRINCIPAL GENERA. * Cacalia. * Senecillis. * Emilia. Carpesium, IV. * Phsenocoma, IV. * Podolepis, IV. * Rhodanthe, IV. * Humea, IV. * Cassinia, IV. * Plagius, VII. * Tanacetum, VII. Artemisia, VII. Atlianasia, VII. * Monolopia, VI. * Madia, V. * Spilanthes, V. * Cosmos, V. * Chrysanthemum, VII. * Sphenogyne, X. * Gamolepis, VIII. * Sogalgina, V. Bidens, V. * Santolina, VII. * Baeria, VI. * Helianthus, V. Diotis, VII. * Helenium, VI. * Coreopsis, V. Ambrosia, V. * Achillea, VII. * Gaillardia, VI. Xantbium, V. * Calliopsis, V. * Anthemis, VII. * Porophyllum, VI. * Chrysostemma, V, * Silphium, V. * Anacyclus, VII. * Tagetes, VI. * Rudbeckia, V. Robinsonia. * Zinnia, V. * Oxyura, V. * CEderia, V. * Ximenesia, V. Included in Tribe XII. of the new arrangement, which the genera are referred under the new classifica' 504. — Ed. tion of the Order given at p. 503. — Ed. s The numerals indicate the number of the Tribe to CXXII. COMPOSITE. 50J Serif no Jacobcca. (Tubulitioral.) Groundsel. Vertical section of the common receptacle (mag.). Groundsel. 5 Floret (mag.). Groundsel. $ floret cut vertically (mag.). Chrysanfhem urn. Pistil (mag.). Achillea. Head (mag.). Chrysanthemum . 9 floret. Chrysanthemum. Milfoil. 2 floret (mag.). g floret (mag.). Groundsel. 9 floret (mag.). Milfoil. (Tubulitioral.) Milfoil. 9 demi-floret (mag.). CXXIL COMPOSITE. 502 Asteri efts. Fniit crowned by a calyx with five scarious sepals (mag.). IleU'inthemum. g floret (mag.). Robinsonia. Embryo with coiled cotyledons (mag.)* Robinsonia. Lower half of fruit. Tagetes. $ floret, cut vertically (mag.). albumen (mag.). Tribe VI. Asteroideal — Capitula generally rayed. Style of g cylindric above ; arms 2, a little flattened outside and puberulous ; stigmatic bands prominent, extend- ing to the commencement of the external hairs. — Leaves alternate or opposite. PRINCIPAL GENERA. * Dahlia, V. * Chrysocoma. * Stenactis. Linosyris. Buplithalnnim, IV. * Vittadinia. * Solidago. * Schizogvne, IV, * Inula, IV. *Neja. Micropus, IV. Bellium. Evax, IV. * Boltonia. * Brachylaena, IV. * Charieis [&c. See Tribe III., p. 503]. Tribe VII. Eupatoriaceal — Capitula generally rayed. Style of 2 flowers cylin- dric above, with long almost club-shaped arms, papillose externally; stigmatic bands narrow, not prominent, usually stopping below the middle of the branches. — Leaves opposite or alternate. PRINCIPAL GENERA. * Tussilago, VII. * Eupatorium. • * Ageratum. * Nardosmia, VII. * Li at rig. * Ccelestina. Adenostyles. * Stevia. Tribe VIII. Vernoniace^e. — Capitula usually discoid. Style of 5 flowers cylin- dric ; arms long, hispid. Stigmatic bands prominent, narrow, stopping below the middle of the branches. — Leaves alternate or opposite. PRINCIPAL GENUS. * Vernonia. [See also Tribe I. of the new classification, p. 503.] CXXII. COMPOSITE. 503 Eupatorium. Pew-flowered head. Eupatorium. Diagram. Eupatorium. $ floret (mag.). [Tribes of Composites , as re-classified for the ‘ Genera Plantarum ’ :■ — Tribe I. Vernoniace.e. — Heads liomogamous ; flowers all tubular. Anthers sagittate at the base. Style-arms subulate, liirtellous. — Leaves usually alternate. Corolla never yellow. Pappus usually setose or paleaceous. Ethulia, Vernonia, Piptocarpha, Stilpnopappus , Ljchno - phora, Erenianthis , Eiiphantopus , &c. Tribe II. Elpatoriace.e. — Heads liomogamous ; flowers all tubular. Anthers nearly entire at the base. Style-arms sub-terete, obtuse, shortly papillose. — Leaves opposite or alter- nate. Corolla rarely pale ochreous, never truly yellow. Pappus often setose. Adcnostemma, . I j' rat inn, Stecia, Trichogonia , Eupatorium, Mikania , Brickellia, Liatris, &c. Tribe III. Asteboide^. — Heads heterogamous, rayed or discoid, or with the ray sup- pressed and then liomogamous. Anthers obtuse, almost quite entire at the base. Style-arms compressed, appcndiculate (except in Bacchandece). — Leaves usually alternate. Receptacle most often naked. Corollas of the disk usually yellow, of the ray the same, or blue or red or purple. i, Qutierrezia, Haplopappus, Pleronia , Lagenophora, Brachjcome , Beilis, Amelias, .I'*' r, Felicia, Ob aria, Celmisia, Erigeron, Conyza, Psia/lia, Baccharis, Ac. Triuk IV. Inuloihe.e. — Heads heterogamous, discoid or rayed, or with the ray suppressed, ami then honiogamous. Anther-cells tailed or setose at the base. Style-arms linear, obtuse, inappendiculate, or if $ flowers undivided. — -Leaves usually alternate. Corolla of the disk usually yellow, of the ray of the same (rarely of a different) colour. Blumea, Pluchea, E palter. Fear, FUago, Anaphalis, Gnaphalium, Helipterum, Helichrysum, Cassinia, Angianthus, Stake, Me talas ia, llelliania, Podolepis, Inula, Iphiona, Pulicaria, Buphthabnum, Ac. Tribe V. IIeliamiioide.e. — Heads heterogamous, rayed, rarely discoid, or with the ray suppressed, and then liomogamous. Receptaclo paleaceous or rarely naked in the disk. Anther-cells not tailed, or mucronate only at the base. Style-anus truncate or appendiculate, 504 CXXII. COMPOSITE. or style of the $ flowers undivided. Achenes 3-4-ang-led, or terete, or often variously com- pressed, naked or crowned with 2-4 slender or sub-paleaceous awns, sometimes mixed with scales. — Leaves opposite, rarely alternate. Corolla of the disk usually yellow, of the ray usually of the same colour. Clibndium, Polymnia, Espeletia, Melampodium, Silphium, Partlie- nium, Xantliium, Zinnia, SiegesbecJcia, Eclipta, Budbechia, Weclelia, Viyniera, Helianthns, Encelia, Verbesina, Spilanthes, Coreopsis, Dahlia, Bidens, Galea, Jlemizonia, &c. Tribe VI. Helenioide.*. — Heads heterogamous, radiate, rarely discoid, or with the ray suppressed and then homogamous. Receptacle naked. Anther-cells without tails. Style- arms iu ^ flowers truncate or appendiculate. Achenes narrow or turbinate, 4-5-angled or 8-oo -ribbed, rarely naked, usually crowned with palese or bristles. — Leaves opposite or alternate. Involucral bracts 1-2- (rarely 3-4-) seriate, herbaceous or membranous. Corollas of the ray usually yellow, of the disk the same, rarely differently coloured. Bahia, Laphamia, Fla/veria, Tagetes, Pedis, Gaillardia, &c. Tribe VII. Anthemidej:. — Heads heterogamous, rayed or discoid, or with the ray sup- pressed and then homogamous. Involucral bracts, 2-oo -seriate, dry or scarious at the tips. Receptacle paleaceous or naked. Anther-cells without tails. Style-arms truncate. Pappus 0, or coroniform, rarely shortly paleaceous. — Leaves usually alternate. Corolla of the disk yellow, of the ray the same or of a different colour. Eriocephalus, Athanasia, Achillea, Anthemis, Chrysanthemum, Matricaria, Cotula, Tanacetum, Artemisia, &c. Tribe VIII. Senecionide5:. — Heads heterogamous, rayed or discoid, or with the ray suppressed and then homogamous. Involucral bracts : inner 1-seriate, sub-equal ; outer small or 0, rarely oo -seriate and imbricate. Receptacle usually naked. Anther-cells without a tail at the base or only mucronate. Style-arms of the g flowers truncate or appendiculate. Pappus most often setose. — Leaves usually alternate. Corolla of the disk usually yellow, of the ray the same or differently coloured. Inabum, Tussilago, Petasites, Arnica, Doronicum, Cidcitium, Gynura, Cineraria, Senecio, Gynoxys, Werneria, Euryops, Othonna. Tribe IX. Calenduleas. — Heads rayed. Involucral bracts 1-2-seriate, sub-equal, narrow. Receptacle naked. Anther-cells mucronate or shortly tailed at the base. Style-arms of § flowers truncate, style of the $ undivided. Achenes usually of various forms or very thick, naked or crowned with wool. — Leaves usually alternate or radical. Dimorpliotheca, Calendula, Tripteris, Osteospermum. Tribe X. Akctotide.e. — Heads rayed, rarely homogamous. Involucral bracts oo -seriate, usually scarious and spinescent at the tips. Receptacle naked, paleaceous or pitted. Anther- cells without tails. Style-arms in $ flowers usually short, rounded, obtuse, rarely truncate at the tip ; style of the $ flowers undivided. Achenes (usually thick) naked or with paleaceous or coroniform pappus. — Leaves radical or alternate. Ursinia, Arctotis, Venidium, Gazania, Berlcheya, Cullumia, &c. Tribe XI. Cynaroidea:. — Heads homogamous ; flowers all tubular. Involucral bracts many-seriate, imbricate, tips often scarious or spinescent or foliaceous. Receptacle often fleshy, densely setose or paleaceous, rarely shortly alveolate. Corolla-limb narrow, deeply 5-fid. Anther-cells without tails. Style sub-entire or with short erect arms, thickened and hairy at the base of the stigmatiferous portion. Achenes usually hard ; pappus setose or paleaceous, rarely 0. — Leaves alternate, usually spinous. Echinops, Carlina, Atractylis, Cousinia, Carduus, Cnicus, Ouopordon, Cynara, Saussurea, Jurinea, Serratula, Centaurea, Carthamns, Carduncellus, &c. Tribe XII. Metisiace.*. — Heads heterogamous or homogamous, rayed or not. Involucral CXXII. COMPOSITE. 505 bracts usually x -seriate, unarmed, rarely spinous. Receptacle rarely paleaceous. Corolla bilabiate or limb deeply 5-fid. Anther-cells usually without tails. Style-arms (very short or very long) rounded or truncate, inappendiculate. Aclienes various ; pappus setose, paleaceous, or 0.— Leaves radical or alternate, rarely opposite. Barnaclesia, Mutisia, Onoseris, Chuqmragua, Diamia, Ainslica, Chcctanthera, Trichocline , Gerhcra, Chaptalia, Leucceria, Perezia, Trixis, Jungia, Ncissauria, &e. Tribe XIII. Cichoracej:. — Heads liomogamous ; flowers equal or sub-rayed. Involucre various. Receptacle with deciduous palese or 0. Corollas all ligulate, truncate and 5-toothed at the tip. Anther-cells with short tails or 0. Style-arms slender. Aclienes various ; pappus setose, paleaceous, or 0. — Juice usually milky. Catananche, Cichorium, Microseris, Tolpis, Picris, Crept*, Hieracium, Hypochceris, Leontodon, Taraxacum, Lactuca, Prenanthes, Sonchus, Micro- rlnjnchus, Tragopogon, Scorzonera, Scolymus, &c. — Ed.] Composite, of which about 10,000 species are known, form the tenth part of Cotyledonous plants, and ought perhaps rather to form a class than an order ; nevertheless, the type which they present is so well characterized, that, in spite of their enormous numerical superiority over other natural groups, the term order has been retained for them. Composite are allied to Calycerece , Dipsacca:, Valerianeee, Campanulacece, Brtmotiiaceee (see these families). Composite chiefly inhabit temperate and hot regions. America produces the largest number of species; those with herbaceous stems grow in temperate and cold climates. The Tuhuliflorce are most numerous in the tropics; the Liyuliflora in the temperate regions of the northern hemisphere; the Labiatiflorce are chiefly natives of extra-tropical South America. The rayed Tubuliflora contain a bitter principle, which is usually combined with a resin or a volatile oil, according to the proportions of Avhich certain species possess different medicinal properties; some being tonic, others excitant, or stimulant, or astringent. Many indigenous species of the large genus Artemisia (Wormwood, Southernwood, Tarragon, ‘ Gdnipi ’) owe to their aroma and bitterness decidedly stimulating properties. [From Achillea moschata the liqueur called Iva is made in the Engadin.] The common Tansy and the Balsamite {Pyretlirum Tanacetum ) are also stimulants. The Camomiles contain an acrid or bitter volatile oil, Avhich renders them antispasmodics and febrifuges. Pyrethrum, a Mediter- ranean Anacyclus, contains a re-in and a very acrid volatile oil in its root, which lead to its employment in diseases of the teeth and gums; the ‘ Spilanthes,’ or Para Cress, of tropical America, is an excellent cure f<>r toothache. The flowers of Arnica and the root of Elecampane {Inula Heleniuni) are used as stimulants of the action of the skin. The Ayapana is a Eupatorium greatly esteemed in South America as a powerful sudorific and a sovereign remedy against snake-bites. Of all alexipharmics (snake-bite antidotes) the nu >st celebrated are the Guaco and the Herba-di-cobra, tropical American species of a genus near Eupatorium. The Titssilago (Colt's-foot), and the Gnaphalium dioicum contain a gummy matter, united with a bitter and slightly astringent principle, Avhich gives them sedative qualities; their capitula are therefore com- monly employed as bechics under the name of Pectoral Flowers. The abundant tubercles of the Jerusalem Artichoke ( Helianthus tuberosus), a perennial Brazilian plant cultivated throughout Europe, contain a principle analogous to starch {inuline), and a large proportion of uncrystallizable sugar. These tubercles ' nis i goo 1 i for cattle, an ■ man. when cooked and seasoned. Some other rayed species are oleaginous and employed in commerce ; the Madia satica and mellosa, Chili plants, furnish an oil which many travellers declare to be preferable in taste to olive oil ; it is distinguished from the latter, as well as Irom most fixed oils, by its solubility in alcohol. The seeds of the Guizotia oleifera, a plant cultivated in India and Abyssinia, yield an oil used for food and burning. 1 lie Discoid 7 ubulifloreB (or Carduacea) contain a bitter principle, which is stimulating in some, diuretic and sudorific in others. As such are employed the Burdocks, the Milk Thistle {Silybum Marianum), and the Blessed i’histle, a species of Centaurea, to which genus also the Cornflower belongs, from which an eye-water was formerly distilled. Some Carduacea: are edible when young; the flowers and leaves of some yield a dye; many have oleaginous seeds ; none possess volatile oils. Atractylis gummifera, an exotic Carduacea, near Centaurea, contains a poisonous principle. 506 CXXIII. STYLIDIEJE. The genus Cynnra contains many species, natives of the Mediterranean basin, the leaves of which are bitter and diuretic. The unexpanded capitula of the Common Artichoke ( C. Scolynms) arc eaten, as are the leaves of the Cardoon (C. Cardunculus ) when blanched. Amongst the Carduacece used in dyeing, the Safflower holds the first place ; it is an Indian plant, now cultivated throughout the world, the flowers of which give a red dye (carthamine), employed for dyeing silk and cotton, and with which is prepared in Spain a much esteemed paint. The Dyer’s Savory (Serratula tinctoria) contains a yellow colour of some value. Marigolds contain a bitter mucilage, various salts, and a little volatile oil ; they were formerly celebrated as sudorifics and resolvents in cancerous obstructions. The Liyulifloree or Cichoraceee possess a milky juice, which contains bitter, resinous, saline, and narcotic principles, the properties of which vary according to their relative proportions. Many of these, if gathered young, before the complete elaboration of the latex, are edible and have a pleasant taste. Their medicinal properties differ according to their development and that of their organs ; thus the obser- vations to he made on them must vary with the season. Amongst the medicinal Cichoraceee , there are some in which the bitter, resinous, gummy and saline ingredients are united in such proportions chat the result is highly nutritive. In the first rank must be placed the Dandelion, which is met with through-' out Europe and the Mediterranean region. The Wild Chicory ( Cichorium Intybus) possesses the same properties. The root of the cultivated Chicory is an important article of trade ; it is employed, roasted, powdered and mixed with ground coffee, or used instead of the latter. The blanched leaves are edible. In Salsify ( Tragopogon polifolius) and Scorzonera hispanica , the hitter of the root is corrected by the mucilage contained in the milky juice, and the root is edible. The species of Lactuca have a hitter acrid juice with a poisonous smell; they contain wax, india- rubber, albumine, a resin, and a bitter crystalli/.able matter, with a peculiar volatile principle. It is to these different substances that the\rowe their medicinal properties. The thickened juice of the cultivated Lettuce, called thridace, is used as a narcotic, and preferred to opium in cases where there is reason to fear the stupifying action of the latter. The young leaves of the same species, which do not yet contain the milky juice, are much used as food. CXXIII. STYLIDIEA V. (Stylidea:, R. Br. — Stylidiacea;, Lindl .) Corolla epigynous , monopetalous, anisostemonous, estivation imbricate. Stamens united to the style. Ovary with two many-ovuled cells ; ovules ascending, anatropous. Embryo albuminous. Annual or perennial plants, usually herbaceous, sometimes woody below. Leaves simple, entire, exstipulate; cauline scattered, rarely whorled; radical in tufts. Flowers perfect, irregular, in a spike raceme or corymb, pedicels usually 3-bracteate. Calyx persistent, usually bilabiate, lower lip 2-fid or -toothed, upper lip 3-fid or -toothed. Corolla monopetalous, irregular, tube short, limb 5-fid, 4 lobes large spreading, the fifth (lip) smaller, spreading or depressed, at first anterior, then be- coming lateral through the torsion of the tube, to which it is sometimes attached by an irritable joint. Stamens 2, parallel, inserted on a glandular disk crowning the ovary ; filaments united into a column with the style, which is sometimes erect and continuous, sometimes with two bends, the lower of which is irritable; anthers forming 2 cells on the top of the column, and embracing the stigmas. Ovary in- ferior, more or less completely 2-celled, septum parallel to the calyx-lips ; stigma obtuse, sometimes undivided, hidden between the anthers, sometimes divided into CXXIY. GOODENIACEJE. 507 two capillary branches terminated by a glandular head ; ovules as- cending, anatropous, on placentas fixed in the middle of the septum. Capsule 2-celled, or almost 1-celled by suppression of the septum, some- times septifragally 2-valved, or with the anterior cell suppressed, the posticous fertile and loculicidal, sometimes indeliiscent. Seeds numerous, minute, sub-globose. Embryo minute, at the base of a fleshy oily albumen. Stylidium adnatum. Sty fid turn. Fruit (mag.). Stylidium. Flower (mag.). Stylidium. Corolla laid open (mag.). Stylidium. Seed cut vertically (mag.). GENERA. Forstera. "Stylidium. Levenliookia. Stylidiea approach Campanulaccce in the epigynous corolla and stamens, introrse anthers, anatropous ovules, capsular fruit and fleshy .albumen. But Campmmlacecc have an isostemonous corolla, free fila- ments, horizontal ovules, the style furnished with a series of collecting hairs, and a loculicidal capsule. Sh/lt'difO’ also resemble Goodmiaceee in their irregular flower, epigynous corolla and stamens, 1-2-celled <>vnry, placentation, ascending and anatropous ovules, and fleshy albumen. But Guodeniacea differ in the induplicative aestivation, isostemonous corolla, indusiate stigma and axile embryo. Stylidiece belong to the southern hemisphere ; most of its species inhabit extra-tropical Australia. A iVw advance into Eastern India and .South China. The species of Forstera inhabit the Alps of Australia, New Zealand and Fnegia. — Ed.] CXXIV. GOODEN! ACE At. iGoodexovi.-e, U. Hr. — Goodenoviea:, Bartling. — Sc^evolacea:, Lindl.) Corolla epigynous or perigynous, monopetalous, isostemonous, (estivation indupli- cate. Stamens epigynous. Stigma indusiate. Ovules erect, anatropous. Embryo albuminous. Usually herbaceous, sometimes woody below, erect or climbing. Leaves scat- tered, sometimes all radical, simple, exstipulate. Flowers $ , irregular, axillary or terminal. Calyx sometimes superior, absent or distinctly 5-fid ; sometimes of 8-5 inferior sepals, coherent at the base. Corolla inserted at the base or top of the 508 CXXIV. GOODENIACEJE. Goodenia. Goodenia. Goodenia. Goodenia Icevigata. Seed surrounded by Vertical section Transverse section of an edge (mag.). of seed (mag.). seed (mag.). calyx, monopetalous, irregular, tube split, or divisible in 5, adherent to the ovary ; limb 5-partite, 1-2-labiate, aestivation induplicate ; lobes with a lanceolate disk and dilated more membranous wing-like margins. Stamens 5, inserted on the disk crowning the ovary, free, and alternate with the corolla lobes ; filaments free, or cohering at the top ; anthers free or cohering, erect, linear, 2-celled, introrse. Ovary inferior, or superior to the calyx and inferior to the corolla, 1 -celled, or more or less completely 2- (rarely 4-) celled ; cells sometimes 1-2-ovuled, with collateral erect ovules ; sometimes with imbricated ascending ovules occupying both sides of the septum, anatropous ; style usually simple; stigma fleshy, enveloped in a membranous cup-shaped sheath proceeding from a prolongation of the disk that is adnate to the style. Fruit a drupe or nucule, or 2-celled capsule with 2 semi-septiferous valves, or 4-eelled and 4-valved. Seeds erect or ascending. Embryo straight, in the axis of a fleshy albumen ; radicle inferior. PRINCIPAL GENERA. * Lesc-henaiiltia. * Goodenia. Dampiera. * Euthalea. Velleia. Scaevola. Selliera. C'XXV. BRUNONIACEiE. 509 We have indicated the affinity of Goodcniacecc with Brunoniacece and Stylidiece (see these families). It is also allied to Lobeliacece in its epigynous stamens, isostemonous corolla, aestivation, many-celled ovary, anatropous ovules, axile embryo and fleshy albumen. But Lobeliacece differs in the stigma having a ring of hairs, and not being sheathed by an indusium. Goodeniacecc are almost exclusively Australian, and especially extra tropical. The species of Sccevola have migrated to the Moluccas and the Indian continent, and thence to the South of Africa [and the Pacific Islands. Sellicra inhabits the coasts of Australia, New Zealand, Chili and Fuegia]. We know little for certain respecting the properties of some Indian Scceeolce. The leaves and berry of the Mokal [5. Taccada~) yield a bitter juice supposed to remove cataract, and its young leaves are eaten as a vegetable. The inhabitants of Amboina use the root to enable them to eat with safety poisonous crabs and fish. The pith is used in cases of exhaustion [and extensively in the construction of ornaments, models, &c.]. The leaves of S. Bela-modogain [probably identical with S. Taccada], a native of Malabar, are applied as a poultice on inflammatory tumours, and a decoction from them is diuretic. Goodenia, Euthales, and Lesclic- nmd/ia are cultivated in European hothouses as ornamental plants. CXXV. BR UNONIA CEsE. 1 (Brunoniacea:, R. Br.) Flowers fascicled, fascicles aggregated into an involucrate capitulum. Corolla hi/pnggnous, monopetalous, isostemonous, aestivation valvate. Stamens hypogynous ; anthers syngenesious. Ovary free, l-celled, 1 -ovuled ; stiOtMA indusiate; ovule erect, anatropous. Fruit a utricle. Fmbryo exalbuminous. Perennial nearly stemless herbs, resembling Scabious. Leaves radical, close-set, spatliulate, entire. Flowers $ , sub-regular, each with 5 whorled bracteoles, agglo- merated in fascicles united in an involucrate capitulum, and separated by bracts like those of the involucre. Scapes many from the same root, simple, and termina- ting in a single capitulum. Calyx-tube short ; limb divided into 5 subulate plumose segments. Corolla hypogynous, monopetalous, infundibuliform, persistent, tube splitting after flowering, limb 5-fid, lobes spathulate, the 2 upper deeply divided. Stamens 5, inserted on the neck of the ovary, included ; filaments flat, articulate, free ; anthers linear, 2-celled, introrse, coherent in a tube around the style. Ovary free, shortly stipitate, l-celled; style terminal, simple, exserted, hairy above; stigma obconic, truncate, fleshy, in a sheath bifid at the tip ; ovule solitary, basilar, ana- tropous. Fruit an indehiscent utricle, enclosed in the enlarged and hardened calyx, and crowned by the plumose segments of the calyx-limb. Seed erect. Embryo straight, exalbuminous ; radicle inferior. ONLY GENUS. * Brunonia. Brunoniacece approach Goodcniacecc by the indusiate stigma ; Campanulacecc and Lobeliacece by its inflorescence, isostemonism, restivation of the corolla, free filaments, anatropous ovule and hairy style ; it differs in its hypogynism, its solitary erect ovule, the absence of albumen, and especially in the indusiate sti.nna. The same analogies exist between Brunoniacece and Composite, and in addition, in both families the ovule is solitary, erect and exalbuminous, and the calyx expands into a pappus ; the diagnosis, in fact, ' Considered as a gonus of Goodenicce by Bentham (FI. Austral, v. 4. p. 38). — Ed. 510 CXXVT. CAMPANULACEiE. Brunonia Australis. Brunonia. Flower (mag.). Brunonia. Flower, opened (mag.). Brunonia. Calyx laid open (mag.). Brunonia. Stamen (mag.). Brunonia. Involucre (mag.). Brunonia. Embryo (mag.). Brunonia. Ovule (mag.). Brunonia. Stigma (mag.). is the same, except as regards the nervation of the corolla. It should also be compared with Globulariece and Plumbaginece (see these families). The only species inhabits extra-tropical Australia. CXXYI. CAMPANULACEyE. (Campanula, partim, Adanson. — Campanulace/E, exclusis pluribus, Jussieu. — Campanule^e, D.C. — Campanulace/E, Bartling.) Corolla epigynous, monopetalous, regular , isostemonous, (Estivation valvate. Stamens epigynous. Ovary several- celled, many-ovuled ; stigma without indusium ; ovules anairopous. Fruit capsular. Embryo albuminous. CXXVr. CAMPANULACEiE. 511 Campanula Rapunculus. C. Medium. Calyx and ovary. C. Rapunculus. Seed entire and cut vertically (mag.). Campanula Medium. C. Medium. Andrcecium and pistil 512 CXXVII. LOBELIACEiE. Annual, biennial or perennial herbs, rarely woody below, sometimes climbing, usually milky. Leaves alternate, rarely opposite, simple, exstipulate. Flowers perfect, regular, in a raceme spike or glomerule, sometimes panicled, involucrate or not. Calyx superior or semi-superior, persistent, usually 5- (rarely 3-6-8-) partite, aestivation valvate. Corolla monopetalous, marcescent, inserted on an epigynous ring, campanulate, infundibuliform or tubular, limb more or less deeply divided, aestivation valvate. Stamens alternate with the corolla-lobes ; filaments free or very rarely adhering to the base of the corolla, connivent, or sub-coherent by their usually dilated bases ; anthers introrse, 2-celled, distinct or cohering into a tube around the style. Ovary inferior or semi-inferior, 2-8-celled ; style simple, bristling with fugacious collecting hairs arranged in longitudinal series ; stigma usually lobed, glabrous within, hairy on the back, very rarely undivided and capitate ; ovules ana- tropous, numerous, horizontal at the inner angle of the cells, or attached to the surface of the septa. Capsule with many-seeded cells, sometimes loculicidal at the top, or opening by valves near the bottom or middle or beneath the calyx, or by as many pores as cells, very rarely by transverse slit's. Seeds numerous, minute, ovoid or angular. Embryo straight, in the axis of a fleshy albumen ; radicle near the hilum. PRINCIPAL GENERA. Jasione. * Roella. * Specularia. * Canarina. * Phyteuma. * Trachelium. * Platycodon. * Campanula. * Adenophora. * Wahlenbergia. * Codonopsis. * Michauxia. We have noticed the affinities of Campanulacece with Lobeliaceee, Brunoniacem and Stylidiea (see these families). They approach Composite?, in the inflorescence of some genera, the synanthery of others, the epigyny, isostemonism and estivation of the corolla, collecting hairs, and anatropous ovule ; they are separated by the nervation of the corolla, plurality and horizontal direction of the ovules, collecting hairs in lines and not in a ring, capsular fruit and albuminous embryo. The Campanulaceee with basal or lateral dehiscence inhabit the temperate regions of the Old World; those with apical dehiscence are most frequent in the southern temperate zone, and especially in South Africa, Australia and South America. Campanulacece yield a milky juice, which differs from that of Lobeliaceai in the acrid principles being neutralized by a sweet and very abundant mucilage, to which the fleshy roots of Campanula Rapunculus and its allies owe their alimentary properties ; they are agreeable and easy of digestion, and being milky, they were recommended by the ancients in nursing. Many species are considered to cure hydrophobia in Russia. Two indigenous Campanulas (C. Trachelium and cervicaria ) were formerly used in angina of the pharynx and trachea ; whence their specific names. CXXVII. LOBELIACEEE. (Campanulacearum pars, R. Br. — Lobeliacea;, Jussieu, Bartling.) Corolla epigynous, isostemonous, irregular, aestivation valvate. Stamens epigy- nous, cohering into a tube. Ovary 1-2-3 -celled-, sttgma not indusiate ; ovules nume- rous, generally horizontal, anatropous. Fruit a capsule or berry. Embryo albuminous. Herbaceous annual or perennial plants, often woody below, rarely shrubby, CXXVII. LOBELIACEiE. 513 usually with milky juice. Leaves alternate or radical, simple, exstipulate. Flowers perfect, very rarely dioecious, generally irregular; inflorescence axillary or terminal, usually racemed or spiked, rarely in a corymb or capitulum, sometimes solitary and axillary. Calyx superior or semi-superior, with 5 sub-regular or irre- gular segments. Corolla inserted on the calyx, 1-2-labiate, of 5 very rarely free Lobelia Erin us. Q Jjnbeha. Diagram. Lobelia. Trmvnrrrsc nvtion of ovary (mag.). Lobelia. Flower cut vertically (mag.). Lobelia. Style and stigma (mag.). Lobelia. Ovule (mag.). Lobelia. Seed cut vertically (mag.). L L Cenlropogon fasluo&us. 514 CXXVIIL ERICINEiE. and equal usually cohering and irregular petals, testivation valvate. Stamens 5, opposite to the calyx-lobes, inserted with the corolla on a ring which is often dilated into a disk crowning the top of the ovary ; filaments usually free from the corolla-tube, distinct at the base and cohering above ; anthers introrse, 2- celled, cohering into a usually curved cylinder. Ovary inferior or semi-superior, sometimes 2-3-celled by the inflection of the edges of the carpels, or sub-1 -celled by the imperfection of the septa ; or of 3 carpels joined by their edges, 2 of which are placentiferous on the median nerves, and the third is narrower and sterile ; style simple ; stigma usually emarginate, or of 2 lobes girt with a ring of hairs ; ovules anatropous, numerous, generally horizontal, sessile, inserted on the inner angle of the cells, or on each side of the septum. Fruit indehiscent and fleshy, or capsular, dehiscence loculicidal, longitudinal or apical, rarely transverse. Seeds numerous, small ; hilum marked by an orbicular pit ; raphe indistinct. Embryo straight, in the axis of a fleshy albumen ; radicle near the hilum. PRINCIPAL GENERA. * Clintonia. * Siphocampylus. * Centropogon. * Lobelia. Laurentia. * Tupa. * Isotoma. Lobeliacece are closely connected with Campanulacece, in which many botanists have placed them ; they only differ in the irregular corolla, more complete cohesion of the stamens, and often fleshy fruit. They approaoh Cichoraceee, a tribe of Composites, in their milky juice, epigvnous irregular corolla, synanthery of the stamens, and stigmatic lobes furnished with collecting hairs ; they are separated from it by the many-ovuled ovary, horizontal ovules and presence of albumen. We have indicated their affinities with Goodeniacece under that family. Some Lobeliacece inhabit the north temperate zone ; most are dispersed over tropical and southern regions, nearly in equal proportions in America and in the Old World, especially in temperate Australia and South Africa. They are very rare in the northern regions of Asia and Europe. Lobeliacece contain in abundance a very acrid and narcotic bitter juice, which burns the skin, and taken internally produces mortal inflammation on the digestive canal; and they are hence amongst the most poisonous of plants. Some are employed in medicine by American practitioners, but with the greatest caution. Lobelia injlata (Indian Tobacco) is used as an expectorant and diaphoretic in the treatment of asthma ; but from being incautiously administered has caused many deaths. The West Indian Isotoma Icmyiflora [a violent cathartic], also employed as a therapeutic, is as dangerous. [Lobelia syphilitica, once in great repute, has fallen into disuse. L. cardinalis is an acrid anthelminthic, and the European L. urens -is a vesicant.— Ed.] CXXVIII. ERICINEjE. (Erica; et Rhododendra, Jussieu. — Ericacea:, D.C.— Ericinea;, Desvaux.) Corolla mono- or poly-petalous, hypogynous, usually diplostemonous. Stamens hypogynous, or rarely inserted at the base of the petals ; anthers 2 ~celled, usually opening by 2 terminal pores. Ovary many-celled ; ovules anatropous. Fruit dry or fleshy. Embryo albuminous, axile. — Stem woody. Shrubs or undershrubs. Leaves usually alternate, entire or toothed, exstipu- late. Flowers ? , axillary or terminal, solitary or aggregated. Calyx 4-5-fid or -partite, persistent. Corolla hypogynous, 4-5-merous, usually monopetalous, in- serted at the outer base of a hypogynous disk, sestivation contorted or imbricate. Stamens usually double the petals in number, rarely equal, and then alternate with CXXVIII. EKICINEiE. 515 Heath. ( Erica cinerea.) Heath. Diagram. Heath. Stamen with anther-cells appendiculate at the base (mag.). Heath. Pistil and andrcecimn with the corolla removed (mag.). Heath. Transverse section of ovary (mag.). Heath. Open capsule. Heath. vertically Seed (mag.). (mag.). Heath. Pistil (mag.) them, not adhering to the corolla, and inserted like it on the disk, or scarcely adherent to its base; filaments free, sometimes more or less monadelphous ( Lageno - carpus, Piiilippia) ; anthers dorsi- or basi-fixed, variously appendaged or not; cells 2, hard, dry, separate at the base or top, opening by terminal or lateral more or less oblique pores which ai*e sometimes prolonged into 2 longitudinal slits ( Loiseleuria , Leiophyllum). Ovary free, surrounded by a disk at its base, of several many-ovuled cells, rarely few-ovuled ( Calluna ) or 1-ovuled ( Arctostaphylos ) ; style simple ; stigma capitate, peltate or cyathiform ; ovules anatropous. Fruit a capsule berry or drupe. Seeds inserted on central placentas, small, numerous ; testa very adherent and dotted, or loose reticulate and arilliform. Embryo straight, cylindric, in the axis of a fleshy albumen ; cotyledons short ; radicle opposite the liilum. Tribe I. Arbute.e. — Corolla deciduous. Fruit a berry or drupe. — Evergreen shrubs. PRINCIPAL GENERA. Femettia. * Arbutus. Arctostaphylos. Tribe II. Andromede.e. — Corolla deciduous. Capsule loculicidal. — Shrubs with persistent or deciduous leaves. Buds generally scaly. PRINCIPAL GENERA. * Clethra. * Zenobia. * Oxydendrum. * Cassandra. * Epigiea. * I’ieris. * I.eucothoe. * Cassiope. * Gualtlieria. * Lyonia. * Andromeda. l l 2 516 CXXVIII. ERICINEiE. Tribe III. Ericea;. — Corolla persistent, usually 4-merous. Anthers often cohering before flowering. Capsule loculicidal (Erica) or septicidal ( Calluna ). — Evergreen shrubs. Buds not scaly. PRINCIPAL GENERA. * Erica. * Calluna. Philippia. Blseria. Grisebachia. Lagenocarpus. Salaxis. Tribe IV. Rhodorace^e. — Corolla deciduous, sometimes irregular ( Azalea , Rho- dora, Rhododendron). Disk hypogynous, glandular. Capsule septicidal. — Leaves flat. Flower-buds scaly, strobiliform. PRINCIPAL GENERA. Phyllodoce. * Rhodora. * Ledum. * Dabooecia. * Rhododendron. * Bejaria. Loiseleuria. * Kalmia. * Azalea. * Leiophyllum. Ericinece are very closely allied to Vacciniece, Tijrolacece , Monot.ropece and Epacridece (see these families). They should also be compared with Empetrece and Eiapcndea (which see). They evidently approach the exotic family of Camelliacece through the genera Saurauja and Clethra. In the latter genus, as in many Ehodoracece, the corolla is polypetalous, hypogynous and imbricate, the anther-cells diverge at the base and open by a pore, the ovary is -5-celled and surrounded at its base by a hypogynous disk, Rhododendron. Rhododendron. 'Rhododendron arboreum. Ovule (mag.). Pollen (mag.). CXXIX. MONOTROPEyE. 517 Rhon. Rhododendron. Rhododendron. Transverse section of Embryo Style and stigma ovary (mag.). (mag.). (mag.). Rhododendron. Stamen with anther- cells perforated at the top (mag.). Rhododendron. Seed, entire and cut longitudinally (mag.). the ovules are numerous and nuatropous, tbe style is simple, the capsule loculicidal, the albumen fleshy, the embrvo straight and axile, the stem -woody, and the leaves alternate. The diagnosis rests on little beyond the polyandry of the one and the diplostemonv of the others. Ericiuere are scattered over the globe. A few species of lleath inhabit Central and Northern Europe, covering immense otherwise sterile tracts. The number of species increases in the Mediterranean region, and is very considerable at the Cape of Good Hope. There are no Ericas in America, Asia and Australia, in which latter country] they are replaced by Epacrideee. Arbutus and Andromeda, genera with a deciduous corolla, inhabit the north temperate zone; they are rare in Central Europe and the Mediterranean region, and abound in North America, where they descend towards the tropics and even cross the tropic of Capricorn. In tropical Asia they are sub-alpine; they are very rare in Australia, but several species occur in Now Zealand. Ithodoracees chiefly inhabit the temperate and cool regions of the northern hemi- sphere, and especially of America. Some are found on the highest mountains of tropical America and Asia. Their centre is in the Himalayas, whence they extend to the mountains of Borneo, where also they occur on the coast. — Ed.] Er ici mre generally have a bitter and styptic taste, due to an extractive principle and tannin, to which is sometimes joined an aromatic resin ; to this the diuretic properties of the leaves of Arctostaphylos TJoa- tirsi are due, and its use in cases of calculus in the bladder. Its berries are very tart ; those of the Arbutus Unedo resemble a small strawberry, and have a mild taste; in some parts of Italy they are fermented, and yi' ld a spirituous alcoholic liquor. The bark and leaves of the Arbutus contain a large quantity of gallic acid, and are used in the East to tan skins. The leaves of Gualtkerin are much used in Canada under the name of Mountain Tea, and the fruit (Box-berry) is edible. Rhodoraee.] CXXIX. MONOTROPE aE. (Monotrope.e, Nuttall. — MonotropacecE, Lindl.) Corolla hypogynous, persistent, mono- or %ly-j)etalous, diplostemonous , aestivation iiij’iirnfe. Stamens 8-10, hypogynous; anthers dehiscing variously. Ovary free 518 CXXIX. MONOTROPEiE. Hypopitys. Hypopitys. Hypopitys. Hypopitys europlea. Pentamerous diagram. Tetramerous diagram. Andrcecium and pistil (mag.). h-^-celled, many-ovuled. Fruit capsular. Seeds numerous, minute. Embryo undi- vided, minute. — Parasitic fleshy leafless scaly herbs. Perennial herbs resembling Orobanche, simple, fleshy, parasitic on tlie roots of trees, never green. Leaves 0, replaced by alternating scales. Flowers $ , sub- regular, sometimes solitary and 5-merous, sometimes in a raceme or spike, tlie ter- minal 5-merous, the others 4-merous. Calyx 5-partite, persistent, sometimes 0, or replaced by bracts. Corolla hypogynous, white or pinkish, persistent, cf 5-4 petals gibbous at the base, free or more or less cohering into a 5-4-fid corolla. Stamens 10 or 8, inserted on the receptacle, sometimes accompanied by filiform appendages; anthers 1-celled, peltate, and opening by a transverse slit; or 2-celled, cells with a basal awn, opening by longitudinal slits, or awnless and opening by pores. Ovary free, ovoid or sub-globose, 4-5-celled, with 10 glands at the base; style simple, straight, hollow; stigma discoid, margined; ovules innumerable, on fleshy axile placentas filling the cells. Capsule 4-5-celled, with 4-5 loculicidal semi-septiferous valves ; placentas fleshy. Seeds numerous, minute, sub-spherical ; testa loose, reti- culate. Embryo undivided, minute. PRINCIPAL GENERA. Monotropa. Hypopitys. Schweinitzia. Pterospora. Monotropea approach Ericineee, and especially Tyrolacece , in their polypetalous or sub-polypetalous diplostemonous corolla, their stamens distinct from the corolla, their anthers opening by pores or trans- CXXX. PYROLACEiE. 519 verse slits, their main -celled and -ovuled ovary and loculicidal capsule. The diagnosis rests solely upon their parasitism and fleshy stem, provided with scales replacing the leaves. Moriotropca are European [Asiatic] and American parasites on the roots of trees, principally pines and beeches. Many species have the scent of violets or pinks. In some parts of Europe the shepherds give their sheep powdered llypopitys to quiet their cough. The Canadian Pterospora Andromedea is employed by the Indians as a vermifuge and diaphoretic. Pyrola minor. 1'yrola. Diagram. 520 CXXXI. VACCINIEiE. Pyj'ola . Transverse section of ovary (mag.). Pyrola. Pistil (mag.). Pyrola. Stamen (mag.) . Pyrola. Ovule (mag.). Pyrola. Embryo taken out of the t^sta (mag.). Corolla polypetalous or sub-polypetalous, hypogynous, cliplostemonous, cestivation imbricate. Stamens 10, not adhering to the petals ; anthers usually 2-celled, opening by 2 pores, or by a transverse slit. Ovary 3-5 -celled. Capsule loculicidal. Seeds minute. Embryo undivided, minute. Perennial herbs, sometimes sub-woody at the base, rarely woody. Leaves scattered or sub-whorled, exstipulate. Flowers § , regular, in a raceme or umbel, or solitary, white or pinkish. Calyx 5-partite, persistent. Corolla of 5 petals inserted on the receptacle, (estivation imbricate. Stamens 10, hypogynous, all fertile and distinct, or monadelplious at the base, 5 fertile and 5 without anthers {Galax) ; anthers introrse, 2-celled, opening at the top by 2 pores or by an oblique slit ; or 1-celled, opening by 2 transverse valves. Ovary free, seated on a hypogy- nous disk, 3-5-celled ; style terminal ; stigma capitate, girt with a membranous ring ; [ovules very numerous, on placentas projecting from the inner angle of the cells, anatropous]. Capsule 3-5-celled, loculicidal, valves semi-septiferous, placentas fungoid. Seeds numerous, minute ; testa loose, much larger than the nucleus. Embryo minute, undivided. PRINCIPAL GENERA. Pyrola. Ckimapkila. Tke small family of Pyrolacece lias keen separated from Ericinece, from wkick it scarcely differs, save in tke structure of tke seed. We kave indicated tke close affinity connecting it witk Monotropece (see tkis family), wkick may be looked upon as parasitical Pyrolacece. Pyrolacece inkakit tke temperate and cool regions of tke nortkern kemiapkere. Tliey owe tkeir medicinal properties to bitter and resinous principles. Chimaphila umbellata is recommended in America as stimulating tke functions of tke kidneys and skin. P. rotunclifolia was formerly employed in Europe as an astringent in dysenteric flux and kfemorrkage. CXXXI. V ACC lNlEsE. (Ericarum genera, Jussieu. — Vaccinier- sconce, hyp. >gyny, one-celled and one-ovuled ovary and anatropous ovule ; but a full diagnosis weakens this affinity (see these families), which is truer with Frankeniaceee. In this family', as in Plumbaginece, we find a stem with swollen nodes, fascicled leaves, an hypogynous isostemonous corolla, contorted aestivation, a one-celled ovary, styles furnished with stigmatic papillae on their inner edge, and a farinaceous albu- men. Plumbaginece and Polggonece may also be compared : in both the stamens are hypogynous, the 528 CXXXV. PRIM UL ACEiE. ovary is one-celled and one-ovuled, the styles are distinct or coherent, and the albumen is farinaceous; but here again the differences exceed the resemblances. Plumbaginea are cosmopolitan plants. Statice inhabits maritime shores and salt lands of the tempe- rate regions of both hemispheres. Armeria is dispersed over botli continents ; many species grow on mountains in the arctic and antarctic regions. Plumbago europcea is the only European species of the genus ; the others are tropical and sub-tropical. 1 he leaves of Armeria vulgaris and the root of Statice Limonium, although possessing decided tonic and astringent properties, have fallen into disuse. 1 he root of S. latifolia , a species near Limonium, which has been recently imported from Russia, contains a large quantity of gallic acid, which renders it useful in tanning and for black dyes. The Plumbagos contain a very caustic colouring matter; the root of the European species contains a fatty substance which gives a leaden colour to fingers and paper, and which was formerly used for toothache, cutaneous diseases and cancerous ulcers ; surgeons have given up its use, but beggars make use of it to produce sores, and thus excite pity. Many American and Asiatic species {Plumbago zeylanica, rosea, scandens) are considered in India to be alexipharmics. Some others ( Pl. Lar- pentce, ccerulea, &c ) are cultivated in Europe as ornamental plants. CXXXV. Pill MUL AGE JE. (Lysimachee, Jussieu. — Primulacea:, Ventenat.) Corolla monopetcilous, hypogynous {or rarely perigynous), isostemonous, (estivation contorted or imbricate, very seldom 0. Stamens opposite to the corolla-lobes. Ovary free, or very rarely inferior, \-celled; placenta central, globose, many-ovuled ; ovules fixed by their ventral face. Fruit a capsule. Embryo albuminous. — Herbs with radical or opposite leaves. Herbs with a woody rhizome, sometimes tuberous, very rarely suffrutescent. Stem generally a subterranean rhizome. Leaves gland-dotted, sometimes all radical, and tufted ; sometimes cauline, opposite or whorled, very rarely alternate, exstipulate. Flowers $ , regular, very rarely sub-irregular, solitary and radical, oi in scapose umbels, or axillary, and then solitary or racemed in terminal spikes. Calyx tubular, 5-fid or -partite', rarely 4—6-7-fid. Corolla monopetalous, rotate, campanulate, infundibuliform, or sub-2-labiate ( Coris ), very rarely 3-petaled {Pelle- tiera), or 0 ( Glaux ). Stamens inserted on the corolla-tube or -throat, opposite to its divisions, often alternating with as many petaloid scales ( staminodes ) ; filaments fili- form or subulate, usually very short ; anthers introrse, 2-celled, sometimes shorter than the connective, dehiscence longitudinal. Ovary free, or rarely enclosed in the receptacular cupule ( Samolus ), 1 -celled ; placenta central or basilar, free, globose, sessile or stipitate, continuous with the conducting tissue of the style ; style terminal, simple ; stigma undivided ; ovules numerous, peltate, semi-anatropous, or very rarely anatropous {Hottonia, Samolus). Capsule 1 -celled, opening at the top, or through- out its length by valves or by entire or bifid teeth, or transversely. Seeds sessile in the pits of the placenta, hilum ventral, rarely basilar. Embryo straight, parallel to the hilum, in the axis of a fleshy or sub-horny albumen ; cotyledons semi-cylin- dric ; radicle vague. CXXXV. PRIMULACEiE. 529 Primrose. Flower cut vertically (mag.). Cyclamer. 9 Primrose. Fistil (mag.) Primrose. Dehiscing capsule (mag.). Cyclamen. Seed, entire and cut vertically (mag.). M M 580 CXXXY. PRIMULACErE. Pimpernel ( Anagallis arvensis). Pimpernel. Seed, entire and cut vertically (mag.). Pimpernel. Pimpernel. Flower (mag.). Vertical section of flower (mag.). Pimpernel. Petal and stamen (mag.). Pimpernel. Calyx and pistil (mag.). Pimpernel. Dehiscing capsule (mag.). Samolus. Flower cut vertically (mag.). Samolus. Portion of corolla and androacium with the alternate petaloid scales. Pimpernel. Closed fruit (mag.). Pimpernel. Transverse section of fruit (mag.). Pimpernel. Young pistil cut vertically (mag.). Tribe I. Primule^e. — Ovary free. Capsule opening by valves or valvules. Seeds with ventral liilum. PRINCIPAL GENERA. And rosace. * Soldanella. Coris. * Dodecatheon. Trientalis. * Cyclamen. * Bernardina. * Cortusa. * Lysimachia. * Primula. Glaux. Tribe II. Anagallideal — Ovary free. Capsule opening transversely. Seeds witb ventral liilum. PRINCIPAL GENERA. Asterolinum. Centunculus. * Anagallis. Euparea. CXXXVI. MYRSINECE. 531 Tribe III. Hottonie^e. — Ovary free. Capsule opening by valves. Seeds with a basilar hilum. — Aquatic submerged plants. GENUS. Hottonia. Tribe IV. Samole.e. — Ovary semi-inferior. Capsule opening by valves. Seeds with a basilar hilum. GENUS. Samolus. We have mentioned the affinities of Primnlaceee with Plumbayinece and Plantaginece (see these fami- lies). They are much more closely allied to Myrsinece, by the hypogynous or perigynous corolla, stamens opposite to the corolla-lobes, 1-celled ovary, free central placentation, ventral hilum of the ovules, and albu- minous embryo. Myrsinece only differ in their woody stem and fleshy fruit. Primnlaceee mostly inhabit the temperate regions of Europe and Asia; many species are alpine. Few are found in the southern hemisphere, except Samolus, the species of which are numerous in Aus- tralia. Some genera are met with on the mountains and shores of the tropical zone. Primulacece are more remarkable for their beauty than for their utility. Many species contain an acrid and volatile substance in their roots, others an extractable bitter and resinous substance ; the foliage of some is astringent; the flowers of most are sweet-scented. The rhizomes of the Primrose ( Primula veris) were formerly employed for rheumatism in the joints and for diseases of the kidney and bladder; and an infusion of its flowers is still prescribed as a diaphoretic. Primrose wine is made from the flowers of P. acaulis and veris. The Auricula ( Primula Auricula) is employed by the natives of the Alps against pul- monary consumption. The tuberous rhizome of the Cyclamen europceum is acrid, strongly purgative, and even emetic ; it formerly entered into the composition of an ointment, which, applied to the stomach, purged or caused vomiting. In some countries the powdered rhizome is employed to stupefy fish ; but, dried and roasted, it becomes edible on account of the starch which it contains, and pigs eat it with avidity, whence its common name of Sowbread. The Pimpernels were formerly prescribed in dropsy, epilepsy, and even in hydrophobia. The species of Lysimachia, and especially Z. nummularia, were considered asiringent, hut have fallen into disuse, as has Samolus. The Coris of Montpellier is an undershrub, containing a bitter nauseous principle, the use of which has been suggested in syphilis. CXXXVI. MYRSINECE. (Myrsine.e, By. — Opiiiosperme.e, Vent mat. — Myrsinacea:, Lindl. — Myrsineace^e, A. D.C.) Corolla monopetalous, regular , isostemonous, hypogynous or perigynous. Stamens inserted on the corolla, and opposite to its lobes. Ovary 1-celled-, placenta central, free; ovules campylotropous. Fruit a drupe or berry. Embryo albuminous. — Stem woody. Trees or shrubs. Leaves generally alternate, simple, coriaceous, gland- mm2 532 CXXXVI. MYRSINEiE. Ardisia crrnulata . Ardisia crispa. Diagram. A. crispa. Normal seed (mag.). A. ci'ispa. Section of the seed (mag.). Jacquinia auranliaca • Diagram. Jacquinia. Flower cut vertically (mag.). Jacquinia. Transverse section of ovary (mag.). Mcesa. Vertical section of fruit (mag.). CXXXVI. MYRSINE2E. 533 Monotheta. Flower (mag.). Portion of corolla and nudrcecium (mag.). Monothcca. Transverse section of ovary (mag.). Monotheca. Fruit opened (mag.). JEgiceras. Flower cut vertically. Monothcca. Pistil (mag.). Atgxcerol. Flower-bud, n-sti- Yation Imbricate, contorted. Monotheca. Pistil opened (mag.). jEgictras. Follicular fruit, bent into a horn, 1-secded, splitting at one side when ripe and furnished with its persistent calyx. Monothcca. Fruit (mag.). JUgiceras. Ar.dra’cium detached from the corolla-tube, and retaining 2 anthers. /Egiceras. Seed suspended from the placenta, and showing the radicle, which has pierced its integuments. t V Egiceras. Embryo cut longitudinally to show the cotyledons. Egiceras. Embryo with coty- ledons joined in a cylindric tube (mag.) • 534 CXXXVI. MYRSINEiE. dotted, exstipulate. Flowers 2 , often imperfect through arrest, regular, usually axillary, umbelled, corymbose, fascicled, racemed or panicled, often covered with glands. Calyx 4-5-fid or -partite. Corolla monopetalous, or sometimes poly- petalous, campanulate or rotate, isostemonous. Stamens inserted on the corolla- tube or throat, and opposite to its lobes, sometimes alternating with as many petaloid scales ( staminodes ) ; filaments short, free, or more or less cohering in a tube ; anthers 2-celled, sometimes connivent, dehiscence longitudinal or apical. Ovary free or inferior, 1-celled ; placenta basilar or central, sessile or stipitate ; style short, simple ; stigma usually undivided ; ovules fixed to the placenta by a ventral, linear, or punc- tiform hilum, exceptionally anatropous ( Monotlieca ). Fruit a drupe or berry, usually few-seeded, or 1-seeded by arrest. Seeds with a simple integument, often mucila- ginous, sometimes with many embryos. Embryo cylindric, usually arched, parallel to the hilum in the many-seeded fruits, and transverse in the single-seeded ; albu- men fleshy or horny ; cotyledons semi- cylindric, or flat and sub-foliaceous ; radicle terete, longer than the cotyledons, inferior or vague. Tribe I. Ardisie^e. — ^Estivation contorted. Anthers introrse. Fruit 1-seeded. PRINCIPAL GENERA. My rsinc. * Ardisia. Ovary free. Tribe II. ALeseal — ^Estivation induplicate- valvate. Anthers introrse. Ovary inferior. Fruit manv-seeded. GENUS. Massa. Tribe III. Theophrasteal — ^Estivation imbricate. Staminodes 5. Anthei’9 extrorse. Fruit many-seeded. Placenta sometimes minute, and ovules anatropous {Monotheca). PRINCIPAL GENERA. Theophrasta, * Jacquinia. Monotlieca. We have indicated the affinity between Myrsinece and Primulacece, which is so close that they might be united (see Primulacece). Myrsinece principally inhabit the tropical zone of Asia and America ; they are fare beyond the tropics, at the Cape of Good Hope, in A ustralia, [New Zealand,] Japan and the Canaries. Theophrasta is an American genus. Mcesa belongs to the Old World; Ardisia to the hot regions of Asia, Africa and America, and extends to the Canaries, The fruit of some species of Ardisia is edible. Ihe leaves of Jacquinia are used in America to stupefy fish, like the rhizomes of Cyclamen , and their fruit is poisonous. The seeds of J. armillaris were strung like pearls by the Caribbeans to form bracelets. The crushed seeds of Theophrasta Jussieui, called at St. Domingo Petit Coco, are used for making bread. Near Myrsinece is placed the genus JEyiceras, which comprises shrubs growing on the shores of tropical Asia and Oceania, with alternate leaves and hermaphrodite flowers in an umbel. The corolla, stamens CXXXVII. SAPOTE2E. 535 and ovary present the same characters as Myrsineee ; the fruit is a curved 1-seeded (by arrest) follicle. The seed is upright, and germinates in the pericarp ; its membranous integument tears during germination and caps the cotyledonary end. The embryo, as in many aquatic plants, is exalbuminous ; the cotyledons form a cylindrical tube, and the radicle is inferior. CXXXVII. SAPOTEsE. (Sapot^e, Jussieu. — Sapotejs, Br. — Sapotace^e, Endl.) Trees or shrubs with milky juice. Leaves alternate, entire, coriaceous, exstipulate. Flowers § , axillary. Calyx 4— 8-partite. Corolla monopetalous, Sidcrojyhm imbricarioidcs . Flower (mug.). Sidtroxylon. Transverse section of ovary. Achras Sapota. Transverse section of seed. Sideroxylon. Flower cut vertically, showing the stamens opposite to the lobes of the corolla (mag.). Sideroxylon. Ovule. Argania. Fruit cut transversely to show the different parts of the pericarp, kernel and seed. Argania. Kernel formed by the cohesion of 2 seeds. Achras Sapota. Vertical section of fruit, showing the seeds with a bony integument. Achras Sapota. Seed, entire and cut vertically (mag.). Argania. Drupaceous fruit, 2-3-celled by abortion. liypogynoii3, regular, [4-8- lobed, aestivation imbricate, sometimes in two series]. Stamens inserted on the corolla, the fertile equalling in number the corolla-lobes, and opposite to them, or more numerous, 2- (or more) seriate, sometimes with alter- nating staminodes ; anthers usually extrorse, [dehiscence longitudinal] . Ovary many- celled ; style conical or cylindric ; stiyma acute or capitellate ; ovules solitary in the 536 CXXXVII. SAPOTEiE. cells, ascending from the base of the inner angle, anatropous. Fruit a one- or many-celled berry [a 4-valved capsule in Ponteria ]. Seeds with a bony [or crusta- ceous, nearly shining] testa ; [hilurn often large and longitudinal] ; albumen 0 or scanty, fleshy or oily. Embryo large ; cotyledons broad, foliaceous ; radicle inferior. [PRINCIPAL GENERA. Clirysophyllum. Ponteria. Lucuma. Bassia. Mimusops. Argania. Sideroxylon. Isonandra. Bumelia] Sapotece approach Myrsinece in their hypogynous inonopetalous corolla, stamens opposite to the corolla-lobes, usually extrorse anthers, straight albuminous embryo, woody stem, and alternate leaves ; they are distinguished by their anisostemonous corolla, many-celled ovary and anatropous ovules. They have also an obvious affinity with Ebenacece in their arborescent stem, alternate entire leaves, axillary in- florescence, inonopetalous hypogynous regular corolla, many-celled ovary, fleshy fruit, and albuminous embryo; but in Ebenacece the wood is very hard, and there is no milky juice, the flowers are often uni- sexual, the calyx and corolla always uniseriate, the anthers always introrse, the ovules geminate, pendulous and collateral. This family inhabits tropical and sub-tropical regions, and includes several species useful to man. The fruits of Lucuma mammosa [the Marmalade of the West Indies] are a very agreeable food; as are those of Achras Sapota and [various species of] Clirysophyllum, which are much sought after in the Antilles; those of Bassia and Imbricaria , Asiatic genera, are also edible. From the seeds of Bassia buty- racea, in India, and of B. Parkii , in Senegal, a fixed oil is expressed (Galam Butter), which quickly curdles, and is much used as food. Other Sapotece, both Asiatic and African ( Sideroxylon , Argania), are employed for building purposes on account of the hardness of the wood, whence their name of Iron Wood. Finally, a Malayan tree ( Isonandra gu/ta) furnishes Gutta Percha, a substance of a resinous nature, allied to india-rubber, which is so useful in various manufactures, from its plasticity. [Other valuable tropical fruits are the Star- Apple ( Clirysophyllum Cainitii), the West Indian Medlar ( Mimusops Elengi), the Bullet-tree of Guiana ( M . Balata), the Ahi or Abui of Peru ( Lucuma Caimito), and those of two Mauritian species of Imbricaria. The genus Bassia contains B. Parkii, the Butter-tree of Park, which produces the Shea Butter of West Africa ; II. butyracea and B. lungifclia, Indian Butter- trees, which make an excellent soap ; B. latifolia, the Mahoua of Bengal, from whose fleshy flowers an arrack is made, which is extensively drunk. The flowers of Mimusops Elengi yield a fragrant essence, and the seeds an oil much used by painters. The bark of different species of Mimusops, Achras and Bumelia is bitter, astringent and febrifuge. The seeds of Achras and Sapota are aperient and diuretic. The fruit of the Maroccan Argania Sideroxylon is greedily eaten by cattle and goats, and the seeds which they pass are afterwards collected and crushed for the bland oil which they contain, and which rivals olive oil as an article of food and illumination; its wood is intensely hard, as is that of the Guiana Bullet -tree, and of various species of Mimusops and Sideroxylon. Lastly, the Cow-tree of Para ( Massaranduba ) is probably a species of this family. — Ed.] Sapota. Imbricaria. CXXXV1II. EBENACEiE. 537 CXXXVIII. EBENACEEE. (Goajacane.-e, partim, Jussieu. — Ebenace^e, Ventenat . — Diospyre^e, Duly.) Diospyros. Diospyros. Diagram J. Diospyros. Transverse section of ovary (mag.). Diospyros. Diagram 9. Diospyros. Calyx furnished with a pilose disk (mag.). Diospyros. Vertical section of ovary, (mag.). 538 CXXXVIII. EBENACE^]. Diospyros. Fruit with persistent calyx (mag.). Diospyros . Vertical section of fruit (mag.). Diospyros. Transverse section of fruit (mag.). Diospyros. Vertical section of seed (mag.). Corolla monopetalous, hypogynous, regular, 3-7 -lobed, aestivation imbricate. Stamens inserted on the corolla or receptacle, equalling the corolla-lobes, or double or quadruple in number. Ovar y free, of many \-2-ovuled cells; ovules pendulous, ana- tropous. Fruit a berry. Embryo albuminous ; radicle superior. Trees or shrubs with dense often very hard and black wood. Leaves alter- nate, coriaceous, entire, exstipulate. Flowers rarely § , usually dioecious (ovary of $ rudimentary, stamens of ? imperfect or 0) ; $ in many-flowered cymes ; ? one- flowered by arrest of the lateral flowers ; pedicels jointed at the top. Calyx 3-6-fid, sub-equal, persistent. Corolla inserted on the receptacle, monopetalous, deciduous, urceolate, coriaceous, usually pubescent outside, glabrous within ; limb 3-6-fid, aestivation imbricate-convolute. Stamens inserted at the bottom of the corolla, or sometimes on the receptacle, double the corolla-lobes in number, rarely quadruple, very rarely equal ( Maba) , and then alternate with them ; filaments free, or united in pairs below ; anthers introrse, 2-celled, basifixed, lanceolate, dehiscence longitudinal. Ovary sessile, 3-many-celled ; style rarely simple ; stigmas simple or 2-fid ; ovules solitary in each cell, or geminate, pendulous from the top of the inner angle of the cell, anatropous, raphe external. Berry globose or ovoid, more or less succulent, usually few-seeded from arrest. Seeds inverted ; testa membranous. Embryo axile, or oblique in a cartilaginous albumen, which is twice as long as the embryo ; cotyledons foliaceous, oval, nearly equal in length to the superior radicle. principal genera. * Diospyros. * Itoyena. Euclea. Maba. Ebenacece were formerly united to Styracece : in both the corolla is 3-7-lobed, the stamens numerous and fascicled, the ovary many-celled, the fruit fleshy, the embryo albuminous and axile, the stem arbo- rescent, the leaves alternate and flowers axillary ; but Styracece differ in their racemed flowers, epigynous or perigynous corolla, semi-inferior or inferior ovary, more numerous ovules, and fleshy albumen. The affinity of Ebenacece with Oleinece is founded on the hypogynous and regular corolla, many-celled ovary, geminate pendulous anatropous ovules, berried fruit, straight albuminous axile embryo, and woody stem. Oleinece differ in the [more or less] valvate aestivation of the corolla, fleshy albumen, and opposite leaves. Ebenacece approach Ilicinece in the hypogyny and aestivation of the corolla, many 1-ovuled ovarian cells, pendulous anatropous ovule, fleshy fruit, straight albuminous embryo, woody stem, and alternate leaves ; but in Ilicinece the corolla is nearly polypetalous and isostemonous ; the fruit is a drupe, the embryo is minute at the top of the fleshy albumen, and the leaves are persistent. Planchon recognizes a certain relationship between Ebenacece and Camelliacece : they agree in the insertion and aestivation of the CXXXIX. CYRILLE2E. 539 corolla, numerous stamens, coherent filaments, many-celled ovary, pendulous anatropoua ovules, fleshy fruit, albuminous embryo (of many genera), 'woody stem, alternate leaves, and often unisexual axillary flowers ; but in Camelliacece the corolla is polypetalous or sub-polypetalous, and the stamens are very numerous. Ebenaceee grow in the tropical [and sub-tropical] regions of Asia, South Africa, Australia and America ; they are rare in the Mediterranean region. Ebenaceee are less noticeable for the beauty of their flowers and the utility of their fruits or seeds than for the hardness and colour of their wood. Ebony is the product of Diospyros Ebenum, melanoxylon, Ebenaster, tomentosa , See. [The best is the Mauritian, \ idded by D. reticulata ; the next best that from the D. Ebemun.] The heart-wood of these trees is usually perfectly black, though sometimes marked with fawn-coloured lines ; and its grain is so fine that when it is polished no trace of woody fibre is perceptible. It is white when young, and darkens with age ; the colour of the alburnum contrasting with that of the heart-wood. Some species of Diospyros have edible berries, as the D. Lotas of the Mediterranean region, D. Viryiniana [the Persimon or Date Plum of the United States], and D. Kaki [of Japan and China], which are cultivated in the open air in European gardens, and the latter of which is much esteemed in China for its berries, which when mellow will bear comparison with our best apricots. \_D. quesita, of Ceylon, yields the beautiful Calamander wood. The glutinous juice of the fruit of D. Evibryopteris is extensively employed in caulking boats and coating fishing nets in India ; it yields a powerful astringent used for tanning purposes. A spirituous liquor is distilled from the fruits of D. Viryiniana, the bark of which is a bitter febrifuge. — Ed.] CXXXIX CYRILLEYE. South American shrubs. Leaves alternate, membranous, entire, exstipulate. Flowers in terminal or axillary racemes. Calyx 5-fid or -partite. Petals 5, slightly united at the base, and with the filaments inserted on the receptacle, {estivation contorted to left or right, sometimes convolute. Stamens 5 or 10, inserted with the petals ; filaments subulate, dilated below the middle; anthers in- trorse, 2-celled, dehiscence longitudinal. Ovary free, [not inserted on a disk], 2-4- celled ; style short; stigma of 2 acute lobes, or sessile, peltate and obscurely 4-lobed ; ovules 1 or more in each cell, pendulous. Fruit either a fleshy 2-celled 2-valved 1-2-seeded capsule ( Cyrilla ), or a nearly dry drupe with 4 wings, 4 cells and 4 seeds (Cl if ton ia). Seeds inverted. Embryo straight, cyliudric, in the axis of a fleshy albumen ; radicle superior. GENERA. Cyrilla. Cliftonia. Elliottia. Cyrilleer approach Ericineee in their liypogynous isostemonous or diplostemonous corolla, their Con- torted activation, many-celled ovary with pendulous ovules, usually capsular fruit, albuminous axile embryo, woody stem and alternate leaves; the principal difference is in their anthers being normal in structure, l'he same characters connect them with IHcineee, which have besides, as in Cyrilla, the petals connected nt tie- base by the stamens, normal anthere, and drupaceous fruit; but in Cyrilla the flowers are racemed, and the embryo more elongated. Finally, CyriUta may be compared with Pittosporeee : botli have five hvpogynous and isostemonous petals, a many-celled ovary, a capsular or fleshy fruit, a woody stem and alternate leaves ; but in Pitto- s/wr&r the ovules are ascending, and the embryo is minute. [ Cyrilleec are all natives of the Southern States of North America, and have no known uses. — Ed.] 540 CXXXIX. CYRILLEiE, Cyrilla racemiflora . Cyrillct. Flower (mag.)* Cyrilla. Vertical section of flower (mag.). Cyrilla. Flower from which a petal has been removed to show the ovary (mag.). Cyrilla . Diagram. Cyrilla. Fruit (mag.). Cyrilla. Vertical section of fruit (mag.). Cyrilla. Transverse section of ovary (mag.). CXL. STYRACE2E. 541 CXL. ST Yll ACE AC. (GUAJACANEJ3, partim, Jussieu. — Styrace^e, Richard. — STYRACiNEyE, Kunth. — Styracace^e, A. D.C.) Styrax. Flower- bud (mag.). Sty rax. Seed (mag.). Sty rax. Seed cut vertically (mag.). Sty rax. Embryo (mag.). Symptoms (//open tinctoria). Vertical section of flower. Styrax. Fruit, cut (mag.). Styrax. Transverse section of ovary (mag.). 542 CXL. STYRACEiE. Corolla monopetalous or sub-polypetalous, perigynous or epigynous. Stamens inserted at the base of the corolla , free, or filaments cohering, definite or indefinite, 1-many -seriate. Ovary inferior or semi-inf erior, of 2-5 2 - many-ovuled cells; ovules anatropous. Fruit usually fleshy. — Embryo albuminous, axile. Shrubs or small trees. Leaves alternate, simple, exstipulate. Flowers racemed or solitary, axillary, bracteate. Calyx 5-4-lobed. Corolla usually 5- ( rarely 4-6- 7-) lobed, i.e. composed of 5-4-6- 7 petals usually scarcely cohering at the base, sometimes increased by an inner whorl of petals, adhering to the outer and alternating with them, [aestivation various]. Stamens inserted at the base of the corolla, free, or filaments cohering, 1-many-seriate, sometimes 8-10 ; sometimes numerous, pentadelphous or monadelphous the longest bundles or stamens alter- nating with the corolla-lobes; anthers 2-celled, dehiscence introrse or lateral. Ovary inferior or semi-inferior, 5-2-celled, cells opposite to the calyx-lobes when they equal them in number ; style simple ; stigma small, capitate, lobed ; ovules geminate, or many in each cell, all pendulous, or the lower horizontal or ascending, and the upper pendulous, anatropous. Fruit usually fleshy, nearly always 1 -celled by arrest. Seeds 5-1 , usually solitary. Embryo straight, in the axis of a fleshy albumen ; cotyledons flat ; radicle usually superior. Tribe I. Symplocehl — Corolla sub-polypetalous, aestivation quincunxial. Stamens 1-many-seriate 15-oo , sometimes polyadelphous, sometimes 1 -seriate, almost free, usually monadelphous. Anthers ovoid-globose. Ovules all pen- dulous. ONLY GENUS. Symplocos. Tribe II. Styrace^e Proper. — Corolla 5-partite, aestivation convolute or sub- valvate. Stamens 1 -seriate, 7-12 ; anthers elongated, adnate. Ovules, the lower horizontal or ascending, the upper pendulous. PRINCIPAL GENERA. * Styrax. * Halesia. [To the above A. De Candolle adds a third tribe : — Tribe III. Pamphimea;. — Corolla 5-fid or -partite, valvate. Stamens 5 or 10, connate at tbe base and adnate to the corolla ; anthers elongate, tubular above. Ovary free ; ovules erect, anatropous. South American trees. Pamphilia, Foveolaria. — Ed.] Styracece are near Ebenacece (see that family). There is also an affinity between Symplocece and Camdliacece ; both have a woody stem, alternate leaves, sub-polypetalous or polypetRlous corolla, and imbricate .estivation ; the stamens are numerous and many-seriate, and the filaments polyadelphous ; and in some genera of Camellicicece the style is simple, the ovary semi-inferior, and the embryo albuminous. Styracece proper present some analogy with Philadelphece, in the woody stem, axillary and terminal flowers, free or nearly7 free petals, numerous stamens, inferior and many'-celled ovary, and albuminous and axile embryo ; but in Philadelphece the leaves are opposite and the fruit capsular. CXLI. JASMINES. 543 Sty vaceee inhabit Asia and tropical America ; there are a few in Japan, in the hotter parts of South America, and in the eastern Mediterranean region. [Many species of Symplocecs are Indian, and several temperate Himalayan.] Storax and Benzoin are two balsams, composed of an aromatic resin in combination with a volatile oil and an acid which crystallizes into needles, named Benzoic acid. These balsams, formerly adminis- tered internally as stimulants, are now only used externally. Storax flows spontaneously or from incisions in the stem of the Sty rax officinale, a tree of the Mediterranean region ; and Benzoin is derived from the Styrax Benzoin, which grows in the Moluccas. Some species of Symplocos yield dyes, and S. Alstonia is used as tea in Central America. [Several species are employed as tea, and for dyeing yellow in the Himalayas.] CXLI. JASMLNEaE. (Jasminearum genera, Jussieu. — Jasmines, Br. — Jasminacea:, Lindl.) Corolla monopetalous, 5-8 -fid, hypogynous, anisostemonous, aestivation imbricate. Stamens 2, inserted on the corolla. Ovary of two 1-2 -ovuled cells ; ovules collateral, ascending, anatropous. Fruit a berry or capsule. Albumen disappearing when ripe. Radicle inferior. — Stem ivoody. Small trees or shrubs, often twining or climbing. Leaves opposite or alternate, 1-3-5-7-foliolate, exstipnlate. Flowers ? , regular or sub-regular, in a corymb or panicle ; pedicels tricliotomous, many-flowered. Calyx 5-8-fid or -toothed, persistent. Corolla hypogynous, monopetalous, hypocrateriform, 4-5-6-lobed, aestivation imbricate. Stamens 2, inserted on the corolla-tube, included, opposite to the 2 outer petals in the 4-lobed corollas ; in the 5-lobed corollas, when one of the outer petals is doubled, one of the stamens is inserted between these two petals, and the other remains opposite to the single outer petal ; in the 6-lobed corollas the same change takes place in the 2 staminiferous petals ; filaments very short, or 0 ; anthers 2-celled, introrse, basifixed, dehiscence longitudinal. Ovary free, 2- celled ; style terminal, very short ; stigma capitate or 2-lobed; ovules 1-2 in each cell, at first pendulous near the base of the septum, finally ascending, anatropous. Berry didymous, often one-seeded by arrest (, Tasminum ), or a cordate 2-celled 2-partible capsule Xyct febrifuge in certain malarious districts of France. Ash wood is well known as invaluable for its lightness, flexibility and strength. — Ed.] CXLIII. SALVAJDORACEJE , Lindl. Glabrous glaucous powdery shrubs ; branches marked with transverse scars. Leaves opposite, petioled, entire, coriaceous, obscurely veined, furnished with 2 minute stipules. Flowers inconspicuous, in spicate paniculate racemes. Calyx small, 4-toothed, aestivation imbricate. Corolla hypogynous, monopetalous, mem- branous, aestivation imbricate. Stamens 4, very short, inserted on the corolla, uniting its lobes and alternate with them ; anthers 2-celled, introrse. Disk hypo- gynous, 4-lobed. Ovary free, 2-celled ; stiejma 2-lobed, sub-sessile; ovules geminate, ascending, anatropous. Seeds 4-1, erect [pendulous, Dohera and Monetia] ; testa pulpy, exalbuminous. Embryo with fleshy plano-convex cotyledons and inferior radicle. ONLY GENUS. Monetia. Salvadora. Dobera. N X 2 548 CXLIV. APOCYNEJ0. Planchon has grouped with Saloadora the genera Monetia and Dubera, both of which are mono- petalous, hypogynous, tetrandrous, and have a 2-celled ovary, a berry with exalbuminous seeds, woody stein and opposite leaves, and which scarcely differ from Salvadora except in the dioecious flowers and pendulous ovule. This affinity is confirmed by their geographical distribution, which extends over the tropical and sub-tropical regions of the Old World. In fact, Monetia is found from South Africa, through the Indian Peninsula and Ceylon, to Malacca; Salvaclora from the coast of Benguela, through North Salvadora persica. Salvadora, Flower (mag.). Saloadora. Seed cut vertically (mag.). Flower cut vertically (mag.). Africa, to Palestine, Persia and India; and Dobera from Abyssinia and Arabia to the Indian Peninsula. As to the affinity, Gardner and Wight place Salvadoracece near Oleinece and Jasmineat , and Planchon is also disposed to adopt this arrangement. The bark of the root of the Salvadora persica contains acrid and vesicant properties, and that of the stem is a tonic ; its red berries are edible [aromatic and tasting like Cress], as are those of S. indica [in India they are not eaten], the leaves of which, like those of Senna, are purgative and vermifuge. This plant [according to Boyle] is the Mustard-tree of the Jews, alluded to in the New Testament parables. CXLIV. APOCYNEyE. (Apocynearum pars, A. L. de Jussieu. — Apocyne^e, R. Br. — Vinces, D.C. — Apocynace^e, Lindl.) Corolla monopetalous, hypogynous, regular, isostemonous, aestivation contorted or valvate. Stamens inserted on the corolla ; pollen granular. Carpels 2, distinct or cohering ; style single. Fruit various. Embryo albuminous, very rarely exalbu- minous'.— Juice milky. Leaves usually opposite or whorled. CXLIV. APOCYNEiE. 549 Sinnil-flowcrcd Periwinkle. Periwinkle. Seed cut transversely (lung.). Periwinkle. Vertical section of flower (mag.). Teri winkle. Diagram. Periwinkle. Ovaries and calyx (mag.). 2 follicles. Periwinkle. Pistil (mag.). Trees or shrubs, often climbing or perennial herbs, generally witli milky juice. Leaves opposite or Avliorled, rarely alternate ( Plumiera , Rhazya, Lepinia), simple, entire, exstipulate, or with rudimentary gland-like or ciliiform stipules. Flowers g, regular, terminal or axillary, in a coryraboid cyme, rarely solitary. Caltx free, 5-fid or -partite, rarely 4-fid. Corolla liypogynous, monopetalous, deciduous, in- fundibuliform or hypocrateriform, tliroat naked or furnished with scales, limb 5- t-fid or -partite, {estivation contorted or valvate. Stamens inserted on the corolla- tube or throat, alternate with its segments; anthers introrse, 2-celled, ovoid, usually 550 CXLIY. APOCYNE2E. acuminate or mucronate, often sagittate, sometimes slightly coherent, dehiscence longitudinal ; pollen granular, applied directly to the stigma. Carpels 2, sometimes distinct, sometimes cohering into a 2-1-celled ovary, sometimes 3-4, at first undi- vided, separating after flowering into 3 or 4 long stipitate ovaries, united at their tips by the persistent base of the style ( Lepinia ) ; style single, uniting the ovaries, usually thickened towards the top, often dilated into a disk below the stigma; stigma generally bifid ; ovules usually numerous, anatropous or semi-anatropous. Fruit various. Seeds usually compressed, often comose. Embryo sti-aight ; albumen cartilaginous or fleshy, sometimes scanty or 0 ; position and direction of the radicle various. Sub-order I. Carissead. — Ovary 2-celled; placentation on the septum, berry. principal genera. Fruit a Ilancornia. Vahea. Melodinus. Carissa. Couma. Ambelania. Pacouria. Collopliora. Carpodinus. Sub-order II. Allamandeal — Ovary unilocular, sule 2-valved. GENUS. Placentas 2, parietal. Cap- * Allam anda. Sub-order III. Ophioxylea:. — Fruit fleshy. Drupes 2, 1 often aborted. principal genera. Tangliinia. Ophioxylon. * Cerbera. Ochrosia. Hunteria. Alyxia. Thevetia. Rauwolfia. Sub-order IY. generally dry, often Euapooyneal — Fruit with 2 follicles, sometimes fleshy, pulpy, reduced to one by abortion, rarely united into a capsule. * TabernaBmontana. * Vinca. * Apocynum. * Nerium. * Wrightia. PRINCIPAL GENERA. * Lochnera. * Beaumontia. * Gelsemium. Malonetia. Strop'll an thus. * Mandevillea. * Ecbites. Aspidosperma. Dipladenia. Urceola. Lepinia. * Plumiera, Rhazya. * Amsonia. [The following genera do not fall into any of the above defined sub-orders. Ovary 1-celled ; placentas parietal. Fruit a berry. — Willughbeia, Lan- dolphia.— Ed.] For the affinity of Apocynem with Znynniacca see this family. They are only distinguished from Asdepiadecc by the st unens, and from Genticmece by their milky juice, usually woody stem, and the distinct CXLV. ASCLEPIADEiE. 551 ovaries of many genera. They are connected with Rubiaceee through Loganiac.ece. They are allied to Oleinea by their woody stem, opposite leaves, aestivation and hypogynous corolla, and by their genera with a 2-cellcd ovary, single style, anatropous ovule, dry or fleshy fruit, and albuminous embryo ; but the Oleinece have an anisostemonous corolla. Apocynecc principally inhabit the intertropical zone of the Old and New Worlds, especially Asia beyond the equator. They are [comparatively] rare in extra-tropical hot and temperate regions. Most of the species possess a milky juice, often rich in india-rubber ( Collophora utilis) ; this juice is sometimes bitter and employed as a purgative or febrifuge, or depurative ( Allamanda cathartica, Carissa xylopicron , Plumiera alba); sometimes acrid and very poisonous (Tanghinia veneniflua, Cerbcra Ahouai) ; sometimes mild, scarcely bitter, and simply laxative (Cerbera salutaris) ; finally, sometimes acid-sweet or unctuous, and much sought as food ( Carissa Carandas , C. edulis , Carpodinus dulcis, Ambelania Pacouna, Couma, Tabcnuemontana utilis, See.). [Other india-rubber yielding genera are Willughbeia in India, Vahea in Madagascar, Hancornia in Brazil, Urceohi in the Malay Peninsula, and Lcindolphia in West Africa. Tan- ghinia, the Ordeal-tree of Madagascar, is the most poisonous of plants, a seed no larger than an almond suffices to kill twenty people. Oleander wood, flowers, and leaves are very poisonous; death has followed using its wood as meat-skewers ; an infusion of its leaves is an active insecticide, and its bark a rat- poison ; that of Wrightia antidysenterica is a valuable Indian astringent and febrifuge. T V. tinctoria leaves yield an indigo, and TP. tomentosa a yellow dye. Edible fruits are produced by Willughbeia edulis and Urceola elastica. The wood of Alstonia scholar is is a bitter powerful tonic, much used in India. — Ed.] CXLV. ASCLEPIADEIE. (Apocynearum pars, A.-L. de Jussieu. — Asclepiadeai, Jacquin. AsCLEPIADACEyE, Lindl.) Corolla hypogynous, regular, 5-fid, isostemonous, aestivation usually contorted. Stamens inserted on the corolla, usually cohering in a tube ; anthers introrse, 2-4- celled ; pollen agglutinated in as many masses as there are cells. Carpels 2 ; ovaries distinct-, styles juxtaposed, united by a common stigma-, ovules pendulous, anatro- pous. Fruit follicular. Embryo albuminous. — Leaves opposite. Juice milky. Woody, rarely herbaceous plants, usually climbing and milky ; stem and branches A trUpiat. Flower (mag.). A selrpias. Diagram, showing the relation of the appendages to the anthers, and that ol the anthers to the etigmntic cor* pnscnles. Atclepias. Pistil bearing pollen- masses (mag.). Asclepias. Stamen furnished with its appendages (mag.). CXLY. ASCLEPLADEiE. 552 Cynanchum. Anther, inner face (mag.). Cynanchum. Pollen-masses pendent to the base of the stigmatic corpnscule (mag.). Periptoca . Anther, partly in profile (mag.). PeriploCa. Anther, dorsal face (mag.). Stapelia europcea . Flower (mag.). Stapelia. Pollen-masses fixed to the top of the stigmatic corpuscule (mag.). Periploca. Pollen formed of 4-pollcn granules (mag.). jointed, knotty, sometimes fleshy (Stapelia). Leaves opposite, rarely whorled or alternate, obsolete or rudimentary in the fleshy species, petioled, simple, entire, ex- stipulate, or with interpetiolar bristles. Flowers $ , regular, very often in umbels or panicles, rarely in cymes or racemes, very rarely solitary ; peduncles axillary or interpetiolar. Calyx free, 5-fid or -partite, aestivation imbricate. Corolla hypogy- nous, monopetalous, deciduous, campanulate, urceolate, hypocrateriform, infundibu- CXLV. ASCLEPIADEiE. 553 liform or terete, tube and throat furnished within with scales ; limb contorted- imbricate or rarely valvate in aestivation. Stamens 5, inserted at the bottom of the corolla, and alternate with its segments ; filaments flattened, usually united in a tubular column surrounding the ovary, and furnished behind the anther with a crown with various appendages ; anthers introrse or lateral, 2-celled, generally cohering in a tube ; cells back to back, parallel, sometimes divided by a septum, opening by a longitudinal or apical slit, rarely transverse ( Gonolobus ) ; pollen agglutinated into a mass ; pollen-masses ( pollinia ) pendulous ( Asclepias ) or horizontal ( Gonolobus ) or erect ( Stapelia ), either one for each cell, or united in pairs belonging to two con- tiguous cells, fusiform, enveloped in an oily matter, and adhering to the glandular prominences of the stigma. Ovaries 2, distinct, placentas nerviform, on ventral sutures; styles usually very short, closely appressed, and united by the common stigma ; stigma with 5 rounded angles, their bases alternate with the anthers, and provided with cartilaginous corpuscules, or with a gland which retaius the pollinia ; ovules numerous, anatropous, pendulous, multiseriate. Follicles 2, sometimes 1 by arrest, on a placenta which detaches itself when ripe. Seeds numerous, compressed, imbricate, often comose. Embryo straight, in the axis of a fleshy albumen, rarely exalbuminous ; radicle superior. [The following arrangement is that of Decaisne, in De Candolle’s “Pro- dromus.” Sub-order I. Periploce®. — Filaments more or less distinct ; anthers with 20-10 pollinia, free, or applied to the top of the stigma; pollen of 3-4 grains. (Asiatic and African). *Peri- ploca , Hemidesvius , Streptocaulon. Sub-order II. Secamon®. — Filaments coherent ; anthers 4- celled; pollinia 20, applied in fours to the top of the corpuscules of the stigma. (Asiatic and African). Secamone, Toxo- carpus. Sub-order III. Euasclepiade®. — Filaments coherent ; anthers 2-celled ; pollinia 10, fixed in pairs to the prominences of the stigma, separated by a longitudinal furrow. DivfSiox I. Astephax®. — Throat of the corolla without scales. Staminal corona 0 (African and American). Asteplianus, &c. Division' II. Mickolom®. — Throat of the corolla furnished with fleshy scales. Staminal crown 0. (African and Arabian). Microloma, &c. Division III. Haplostemm®. — Staminal crown simple, of 5 segments ; segments inserted at the base of the gynostegium, simple, entire or 2-fid. Metastelma, Bonlinia, Aceratcs, Vince- toxicum, Baplostemma, Ac. Division I\. Cynocton®. — Throat of the corolla naked. Staminal crown simple, cup- shaped or tubular, mouth sub-entire or lobed. Orthosia, *Cynoetonum, Holostemma, *Arauja, &c. Division \ . Sarcostemm®. — Throat of the corolla naked. Staminal crown usually double ; outer short, innatc-lobed ; inner of 5 segments, which are fleshy or ligulatc or more or less rounded and tumid. Calotropis, Ventatropis , Sarcostemma, Dcemia, Ac. Division \ I. Eustegi®. — Throat of the corolla naked. Staminal crown campanulate, double or triple ; segments more or less connate below, opposite or alternate, produced into a linear appendage, surrounding the sessile or stipitate gynostegium. Eustegia, Cynanchum, Ac. 554 CXLY. ASCLEPLADEiE. Division VII. Asolepiad®. — Throat of the corolla naked. Staminal crown of 5 segments ; segments concave or hooded, inserted at the base, rarely at the top, of the gynostegium, with often a ligulate appendage on the inner face, or thickened in the middle and then toothed at the side. Gomjohocarjous, * Asclepias , &c. Division VIII. Ditass®. — Staminal column compound, of 2 opposite series, linear, equal or the outer ovate and minutely toothed. (America. Shrubs ; flowers small, hoary within). Ditassa, Tassadia, &c. Division IX. Oxypetal®. — Staminal crown adnate to the corolla-tube, tubular or of 5 segments; segments simple or toothed internally. Pollinia fixed to a broad geniculate process. Stigmatic capsule linear, often horned or spurred at the base ; stigma long, often dilated, truncate or deeply 2-7-fid. (Perennial twining American plants). * Oxypetalum, &c. Sub-order IV. Gonolob®. — Filaments connate. Anthers 2-celled, dehiscence transverse. Pollinia 10, horizontal, fixed in pairs to a longitudinal bipartite furrow of the stigmatic process ; tips usually pellucid and hidden under the depressed stigma. (Perennial twining American herbs). * Gonolobus, Fischeria, &c. Sub-order V. Stapeli®. — Filaments connate ; anthers usually terminated by a simple membrane. Pollinia 10, ascending or erect, fixed in pairs to the stigmatic process, opaque at both ends, or pellucid at the sides or above. (Twining plants, often fleshy herbs, of the Old World). Division I. Pergulari®. — Pollinia opaque at both ends. Tylophora, Marsdenia, Pergu- laria, * Steplianotis, Gymnema, Sarcolobus, &c. Division II. Ceropegi®. — Pollinia pellucid at the top or side. Leptadenia, Dischidia, *Uoya, *Ceropegia, BouOerosia, Huernia, * Stapelia, &c. — Ed.] Asclepiadeee were formerly placed in the same family as Apocynear, the exceptional structure of the pollen and stigma, however, separates them, as do the usually coherent filaments. Periplocece, however, by their nearly free filaments connect the two families. Their affinity with Gentianece is less than that of Apocynece, some genera of which have their carpels united into a 1-2-celled ovary. Asclepiadece inhabit the same countries as Apoeynecc ; the fleshy species all belong to the Old World, and especially to South Africa. Their medicinal properties reside in their milky juice ; some are emetics ( Vincetoxicum officinale , Gomphocarpus crispus , Secamone emetica, &c.); others are purgative ( Cynanchum monspeliense, Solcnostemma Arghel) ; some are sudorifics (Hemidesmus indicus) : the acrid milky juice of others is used to poison arrows {Gonolobus macrophyllus), or wolves ( Periploca yrcecci), whence the names of Wolf s-bane and Dog’s-bane, given to several species. In others, again, the milk ha9 no acridity, and is alimentary ( Gymnema lactiferum, the Cow-plant of Ceylon, and the Cape Oxystelma esculmtum). [The Asclepias decumbens of Virginia causes perspiration without increase of animal heat, and is used in pleurisy. A. tuber osa is a mild cathartic ; A. curassavica is the well-known American Wild Ipecacuanha, an emetic and purgative. Tylophora asthmatica is one of the most useful medicines in India as a cure for dysentery. Sarcostemma glaucum is the Ipecacuanha of Venezuela. Cynanchum acutum is the Montpellier Scammony. Calotropis yiyantea yields Mudar, a celebrated Indian drug, a tonic, alterative and pur- gative ; the root of Hemidesmus indicus is in no less repute as a substitute for Sarsaparilla. Some Indian species yield most tenacious fibres, as Marsdenia tenacissima, Orthanthera viminea, and Calotropis yiyantea ; others dyes, as Marsdenia tinctoria ; and, lastly, others a good Caoutchouc.] CXLYI. LOGANIACEiE. 555 CXLYI. LOG AN I ACE jE. (Loganie^e, R. Br. — Potalie/e, Martins. — Strychne^e, D.C. — Strychnace^e, Blume. — Loganiace^e, Potaliace^ et Apocynearum pars, Lindl.) Logan ia nerii/olia . Logania. Q flower cut vertically (mag.). Logania * £ flower cut vertically (mag.). Logania. Capsule (mag.). Logania. Pistil (mag.). Corolla monopetalous, hypogynous, regular, generally isostemonous, aestivation valvate, contorted or convolute. Stamens inserted on the corolla. Ovary of 2-4 1- or many-ovuled cells; ovules anatropous or semi-anatropous. Embryo albuminous. — Leaves opposite. Stem woody, rarely herbaceous. Leaves opposite, stipulate, or exstipulate when the dilated and connate bases of the petioles embrace the stem, with a short some- times obsolete border ; stipules adnate on both sides to the petioles, or free and inter- petiolar, or cohering in a sheath, or axillary, dorsally adnate to the base of the petiole. Flowers ? , regular, very rarely anisostemonous, axillary and solitary, or racemose or corymbose ; sometimes in a terminal corymb or panicle. Calyx mono- sepalous with valvate aestivation, or of 4-5 free imbricate sepals. Corolla hypo- 55 G CXLVI. LOGANIACEiE. Logania. Seed, ventral face (mag.). Logania. Logania. Seed, dorsal face Seed cut vertically (mag.). (mag.). Logania. Seed cut transversely (mag.). Fagraea. Diagram. Fagrcea. Ovule (mag.). Fagrcea. Anther, dorsal face (mag.). Fagrcea. Transverse section of anther, showing the volu- minous connective (mag.). Desfontainea spinosa. Flower (mag.). Fagrcea. Transverse section of ovary (mag.). Desfonlainea. Stamen with volumi- nous connective (mag.). Decfontainetx. Placenta cut transversely, bearing 4 ovules (Inag.). Fagrcea. Pistil (mag.). Desfonlainea. Berry (mag.). gynous, monopetalous, rotate, campanulate or infundibuliform, limb 5-4-10-fid, aestivation valvate contorted or convolute. Stamens inserted on tlie corolla-tube or throat, alternate in the 4-5-fid corolla, opposite in the 10-fid corolla ; filaments filiform or subulate ; anthers introrse, 2-celled, dehiscence longitudinal. Ovary superior, 2-4-celled ; style filiform, simple ; stigma capitate or peltate or bilobed ; ovules numerous, semi-anatropous, attached to the septum, or ascending from the base of the cell, rarely solitary, and peltate by their ventral face, very rarely erect at the base of the cells and anatropous (Gwrtnera) . Fruit capsular, septicidally or septifragally 2-valved, or of 2 cocci with transverse dehiscence ; sometimes a berry or drupe. Seeds numerous or solitary, sometimes winged. Embryo straight, in the axis or base of a fleshy or cartilaginous albumen ; radicle inferior or vague. [The following is Mr. Bentham’s classification of the Loganiacece (Journ. Linn. Soc. Lond. i. 88) : — CXLVI. LOGANIACECE. 557 Tribe I. Antonies. — Ovules numerous in the ovarian cells. Seeds winged. Antonia , Usteria, etc. Tribe II. Eologanies. — Ovules numerous in the ovarian cells. Fruit capsular. Seeds naked or hardly winged. Spi/jelia , Mitreola, Mistrasaome, Lotjania, Nuxia , Buddleia. Tribe III. Fagrses. — Ovules numerous in the ovarian cells. Fruit a berry. Desfontainea, Fagrcea, Strychnos, &c. Tribe IV. G.ertneres. — Ovules solitary, raroly geminate in the ovarian cells. Gardner ia, Gcertnera, &c.] Loganiacece are very closely allied to Rubiacece (see this family). They approach Gentianece in the opposite and entire leaves, the insertion, aestivation and isostemony of the corolla, the capsular fruit, and the presence of albumen ; but Gentianece differ in the 1- or incompletely 2-celled ovary, anatropous ovules and exstipulate leaves. The affinities and differences are the same in Apocynece, whose fruit, like that of Loganiacece, is a capsule, berry, or drupe ; but they are distinguished by their milky juice, the always isostemonous corolla, and numerous genera with free carpels. The little group of Desfontaincce also approaches Loganiacece, of which it has nearly all the characters ; but its aestivation is contorted, tbe placentation is parietal, and the leaves are always exstipulate. Loganiacece are scattered over the tropical regions of Asia, Africa and America, and extra-tropical Australia. Most Loganiacece have a very bitter juice. The species of Strychnos contain in the bark of their root and in their seeds two alkaloids ( strychnine and brucine), combined with a peculiar acid ( igasuric acid), principles which are extremely energetic ; their action on the nervous system is most powerful, whether as invaluable medicines or as mortal poisons. A decoction of the root of S. Tieute is the tjettek , with which the Javanese poison their arrows; and which, when taken internally, also acts as a poison, but less rapidly than when absorbed through the veins. The natives of South America also use two species of Strychnos to poison their arrows ; this poison, called curare, is prepared by mixing the juice of the bark with pepper, the Indian berry, and other acrid plants, and is preserved in little vases of baked earth. It is supposed that the curare acts as a poison only through the blood, and that it may be swallowed with- out inconvenience ; it is certain that chemists have found no alkaloid in it. The seeds of S. Niix vomica act as a powerful excitant of the spinal cord and nerves, and stimulate the functions of the organs of volun- tary motion, in cases of paralysis which do not proceed from injury to the brain, for which the seed itself, or an extract, or its alkaloid, strychnine, are employed. Spigelia anthelmintica, an American plant, very poisonous in its fresh state, is innocuous when dry, and is a successful vermifuge. S. marylandica is a less nctive but also useful vermifuge. [ Strychnos pseudo-qidna is a reputed Brazilian febrifuge, and yields Copalche bark. S. Ignatia yields the Ignatius Bean of India, used as a remedy for cholera. S. potatorum yields the celebrated Clearing Nut of India, which clarifies foul water when this is put in a vessel of which the inside has been rubbed with it.] 558 CXLVII. GENTIANE^E. CXLYII. GENTJANEJE. (Gentiane^e, Jussieu. — Gentianace^e, Lindl.) Corolla monopetalous, hypogynous, isostemonous, aestivation contorted or indupli- cate, 5-4-6-8-jfit?. Ovary 1- or sub-Z-celled ; ovules oo, anatropous, horizontal, placentation parietal. Capsule dehiscing along the margins of the carpels. Embryo albuminous. Annual or perennial herbs, sometimes woody below, rarely throughout, sometimes climbing, usually glabrous, juice watery. Leaves opposite, sometimes whorled, very Erythroea. Corolla and androecium laid open (mag.)* Erythroea. Calyx (mag.). Erythroea. Transverse section of ovary with two in- complete cells (mag.). Gentian ( Genliana acaulis). Flower. Gentian. Diagram. Erythroea. Pistil (mag.) Flbwer cut vertically. Gentian. iced cut vertically (mag.). CXLVII. GENTIANECE. 55') rarely alternate or rosulate, nearly always simple and entire, exstipulate. Flowers 5 , generally regular, terminal or axillary, inflorescence various. Calyx persistent, of 5-4 sepals, rarely 6-8, distinct or more or less cohering, aestivation valvate or contorted. Corolla monopetalous, hypogynous, infundibuliform or hypocrateriform or sub-rotate ; throat naked or furnished with a delicate fringed ring ; limb naked or ciliate, or studded with glandular pits, aestivation valvate or induplicate. Stamens inserted on the corolla-tube or -throat, alternate with its lobes ; filaments equal or nearly so, bases rarely dilated and united into a ring ; anthers 2-cefled, introrse, dehiscence usually longitudinal, sometimes apical. Carpels 2, connate into a 1- or more or less completely 2-celled ovary ; style terminal, sometimes very short or wanting ; stigma bifid or bilamellate ; ovules numerous, many-seriate, anatropous. Capsule 2-valved, usually placentiferous at the edges of the valves. Seeds minute. Embryo minute, in the base of a fleshy copious albumen ; radicle near the liiluin, nearly always centrifugal. [The following is Grisebach’s arrangement of Gentianece : — Tribe 1. Euqentianea:. — Corolla-lobes contorted. Albumen filling the cavity of the seed. — Leaves opposite. Sub-tribe 1. Cuironiea:. — Anthers erect, cells opposite, without a distinct connective, dehiscence lateral, often short and pore-like. Cliironia, Exacum, Ac. Sub-tribe 2. CilLORK.E. — Anthers with an obvious connective, often twisted. Style distinct, deciduous. Sabbatia, Sebcea, Enjthrcea, Clilora, &c. Sub-tribe 3. Lisianthea:. — Anthers with an obvious connective. Style persistent. Lisi- anthus , Leianthus, Voyria, Ac. Sub-tribe 4. Swertie.e. — Anthers with an obvious connective. Stigmas 2, persistent or confluent on the branches of a persistent style. Gentiana, Grawfurdia, Pleurogyne, Ophelia, Halenia, Swertia, Ac. Tribe II. Menyaxthea:. — Corolla-lobes induplicate in aestivation. Albumen smaller than the cavity qf the seed. — Leaves alternate. Villarsia, Menyjmthes, Limnanthemum, Ac.] Gentianece are near Loganiacece, Apocynece , and Asclepiadece (see these families). They have also characters in common with Gesneracece, and especially with the genera with free ovaries, as the opposite, leaves, anatropous ovules, parietal placentation, capsular fruit, and fleshy albumen; but Gesneracece have irregular anisostemonous corollas with imbricate aestivation, and an axile embryo, and are usually perigynous. Orobanehece present the same affinity, and they have also, like Gentianece, a minute and basilar embryo, but they are parasites, and the scales which take the place of leaves are alternate. There is also some analogy between the true Gentianece and Pulemoniaeece ; but the latter are separated by the mauy- celled ovary, axile placentation, loculicidal capsule, and alternate leaves. Gent ianetr are scattered over the surface of the globe; they inhabit the mountains of the northern hemisphere ; they especially abound on tropical [and temperate] mountains [whence their absence from the polar regions is very remarkable]. Gentianece supply tonic medicines, owing to their containing a bitter principle named gentian in. The chief indigenous species is the Yellow Gentian ( Gentiana lutea), one of the earliest of known medicines. G. cruciata is also a febrifuge and vermifuge ; its root was in repute among the ancients as an antidote to the plague and the bite of mad dogs. The Centaury [Enjthrcea Cintaunum) is employed as a substitute for Gentian ; its flowering tops contain, besides a bitter principle, an acrid substance which increases its tonic and febrifugal action. The Water-Trefoil, or Buckbean, 560 CXLVIII. HYDEOPHYLLE2E. (Mcnyuntlies trifoliate ) lias the same properties as the Centaury, and is also used as an antiscorbutic, as is Villarsia nymphceoides, both indigenous plants. [The rootstock of Menyantlies is intensely hitter, and an excellent tonic. Various species of Ophelia supply the celebrated Chirita of the Indian Pharmacopoeia. American Calumba is the root of Frazera Walteri. — Ed.] CXLVIII. HYDROPHYLLEsE. (Hydrophylle^e, R. Br. — Hydrophyllacea:, Lindl.) Corolla monop etalous, inserted on a hypogynous disk, isostemonous, (estivation imbricate. Stamens 5, inserted at the bottom of the corolla-tube. Ovary 1- or incom- pletely 2,-celled ; ovules with a ventral hilum. Eruit capsular, or almost fleshy. Embryo straight, albuminous. Eadicle vague. Animal or perennial herbs with watery juice and angular stems. Leaves Hydrophyllum virginicum. Hydrophyllum. Flower cut vertically (mag.). Hydrophyllum. Ovary cut vertically (mag.). Hydrophyllum. Fruit (mag.). CXLIX. HYDROLEACEJE. 501 Phacelia. Flower-bud (mag.). Phacelia. Pistil (mag.). Ellisia. Ellisia. Cylindrical Seed cut vertically embryo (mag.). (mag.). alternate, the lower sometimes opposite, exstipulate. Flowers 5, regular, in spikes or scorpioid racemes, very rarely solitary on axillary peduncles. Calyx 5-partite, persistent, aestivation imbricate. Corolla monopetalous, inserted outside a hypogynous disk, campanulate or sub-rotate, very rarely infundibuliform, tube often furnished with scales within alternate with the stamens, limb 5-fid, aestivation imbricate. Stamens 5, inserted at the bottom of the corolla-tube, and alternate with its lobes ; filaments with various basal appendages ; anthers introrse, 2-celled, dorsifixed, versatile, dehiscence longitudinal. Ovary 1- or incompletely 2-celled ; placentas 2, linear or dilated, adnate by the base and apex to the ovary, but the dorsal face often free ; style terminal, 2-fid at the top, lobes terminated by a papillose stigma ; ovules 2 or more, attached by their veutral face, semi-anatropous. Capsule membranous or almost fleshy, 2-valved, placentas free or on the middle of the valves. Seeds angular or sub-globose. Embryo straight, in a copious cartilaginous albumen, axile or excentric ; radicle distant from the hilum, vague, or rarely superior. PRINCIPAL GENERA. * Hydrophyllum. * Nemophila. Ellisia. * Eutoca. * Fbacelia. * Cosmantlius. * Whitlavia. Hydroph ylleec are near Polemoniaeea (see this family). They also approach Hydroleacece, which only differ in the anatropous ovules and distinct styles. They were long confounded with Borrayinea, hut their only resemblance is in the scorpioid inflorescence. HydrophyUeee abound in the temperate regions of North America; they are rare in extra-tropical South America, and still rarer in the tropics. One species only, II. canadense, is used in medicine, being considered in America a specific for snake-bites. CXLIX. E YD BO LEA CEJE. (Convolvulorum genera, Jussieu. — Hydroleacea:, Br.) Corolla monopetalous, hypogynous, isostemonous, aestivation imbricate. Stamens inserted on the corolla-tube. Ovary more or less completely 2-celled ; ovules anatropous ; styles 2, distinct. Capsule loculicidal or septifragal. Embryo albuminous. Annual herbaceous or sub- woody plants with watery juice ; stem and branches o o 562 CXLIX. HYDBOLEACEiE. EydroUa azurea. Wigandia caracasana. Hydrolea. Seed entire and cut longitudinally (mag.). often glandular-pubescent or clothed with stinging hairs, or sometimes with axillary spines. Leaves alternate, exstipulate. Flowers g , regular, solitary or in corymbs or scorpioid spikes. Calyx herbaceous, 5-fid or -partite. Corolla monopetalous, hypogynous, infundibuliform or sub-campanulate or sub-rotate, limb 5-fid, aestivation imbricate. Stamens 5, inserted on the corolla-tube, alternate with its divisions ; filaments filiform-subulate, sometimes dilated and arched at the base ; anthers CL. POLEMONIACEiE. 563 2-celled, dehiscence longitudinal. Ovary with 2 more or less complete cells ; styles 2, terminal, distinct ; stigmas capitate ; ovules numerous, anatropous, horizontal or pendent. Capsule with 2 valves, sometimes septiferous, leaving the placentiferous septum free, sometimes loculicidal and semi-septiferous. Seeds numerous, minute, angular ; testa membranous, loose, striate or areolate. Embryo straight, in the axis of a fleshy scanty albumen ; radicle near the hilum, centripetal or superior. [Arrangement of Hydroleacece by Choisy in De Candolle’s ‘ Prodromus ’ : — Tribe I. Hydrole*. — Capsule 2-celled, septicidal; septum free, single, with a fungous placenta on each face. Hydrolea. Tribe II. Name.*. — Capsule 1-2-celled, loculicidal; septum double, with lamellar pla- centas. Nama, Wiyandia, &c.] We have indicated the affinities of Hydroleacece with Polemoniacece and Ilydrophyl/ece (see these families). They are common in tropical and extra-tropical America ; but Hydrolea itself is the only representative in the Old World, where it inhabits wet places in the tropics. CL. POLE MON I A CEyE. (Polemoniacece, Ventenat.— Polemonide^e, D.C. — Cob^eace^e, Don.) Corolla monopetalous, hypogynous, regular , isostemonous, aestivation contorted. Stamens 5, inserted at the middle or on the top of the corolla-tube. Ovary 3- celled ; ovules solitary and erect, or numerous and ascending. Capsule 3 -valued. Embryo albuminous; radicle superior. Herbaceous plants, rarely sub-woody or woody, with watery juice. Leaves alternate, the lower sometimes opposite, exstipulate. Flowers 5 , rarely solitary, usually in a panicle or corymb or involucrate head. Calyx monosepalous, 5-fid. Corolla monopetalous, hypogynous, infundibuliform or hypocrateriform, limb 5-partite, a?stivation contorted. Stamens 5, inserted on the corolla-throat or tube, and alternate with its lobes ; anthers 2-celled, dehiscence longitudinal. Ovary seated on a more or less obvious glandular disk, 3-5-celled ; style terminal, 3-fid, or 5-fid at the top, papillose on the inner surface ; ovules either solitary and erect at the inner angle of the cell, anatropous, or numerous, biseriate, peltate by the ventral face, ascending and semi-anatropous. Capsule membranous or sub-woody, rarely fleshy, of 3-5 valves septiferous in the middle. Seeds angular or compressed ; hilum basilar or ventral ; testa sometimes formed of mucilaginous cells with unreliable trachea?. Embryo straight or nearly so, in the axis of a fleshy albumen ; cotyledons foliaceous ; radicle inferior. [Poleinouiacea’ have been divided by A. Gray into two groups: — 1. Stamens unequally inserted. *Phloxt *Gollomia (including *Leptosiphoii) , Nanarratia, llugelia, *Gillia, Ijeptodactybm. 2. Stamens equally inserted. *Gtlia, *Polemonium , *Locselia, *Oantua , *Cobwa. — Ed.] . o o 2 564 CL. POLEMONIACEEE. Polemonium. Flower (mag.). Polemonium. Diagram. Polemonium. Fruit (mag.). Polemonium. Pistil (mag.). Polemonium. Stamen, inner face (mag.). Polemonium. Seed, entire and cut vertically (mag.). Polemoniaceee are closely allied to Convolmlacece (which see). They approach Hydrophylleee in the alternate leaves, hypogynous and isostemonous corolla, loculicidal capsule, axile embryo and copious albu- men ; but in Hydrophylleee the aestivation of the corolla is imbricate, the ovary sub-2-celled with parietal placentation, the radicle superior, and the albumen cartilaginous. Hydroleacece agree and differ similarly; besides which the styles are distinct and the ovules horizontal. Polemoniaceee are also distantly allied to Gentianece (which see). Polemoniaceee mostly inhabit the west of extra-tropical America ; very few occur in the temperate and cold regions of the Old World. The Jacob’s Ladder, or Greek Valerian ( Polemonium ceeruleum), is mucilaginous, nauseous in scent and bitter ; in some countries its leaves are applied to ulcers following contagious diseases, aud the Russians give a decoction of it in cases of hydrophobia. CLI. CONVOLVULACEiE. 565 CLI. CON VOL VULACEjE. (Convolvuli, Jussieu. — Convolvuleje, Ventenat. — Convolvulace^e, D.C.) [Erycibe^e, Endl. ] Calftlrgia. Bindweed. Diagram of the flower and two foliaccous bracts. Embryo laid open (mag.). Bindweed. Fruit (mag.). Seed, entire and cut vertically (mag.). 566 CLI. CONVOLVULACEiE. Corolla monopetalous, hypogynous, isostemonous, regular, aestivation contorted. Stamens 5, inserted at the bottom of the corolla-tube. Ovary of 4 1-2-ovuled cells. Ovules collateral, erect, anatropous. Capsule with valves detaching from the septum, or a berry. Embryo curved; albumen mucilaginous ; cotyledons folded ; radicle inferior. Herbaceous, sub-woody or woody plants. Stem generally climbing, rarely erect, juice usually milky. Leaves alternate, exstipulate. Flowers ? , regular ; peduncles axillary or terminal, simple or trichotomous, usually bibracteolate ; bracts sometimes close together, enveloping the flower. Calyx of 5 sepals, usually free, persistent. Corolla hypogynous, monopetalous, campanulate or infundibuliform or sometimes hypocrateriform, limb 5-fid or forming 5 folds, aestivation generally contorted. Stamens 5, inserted at the bottom of the corolla-tube, alternate with its lobes ; filaments usually dilated below, filiform above ; anthers introrse, 2-celled, de- hiscence longitudinal. Ovary sometimes girt by a disk, with 2-3-4 1-2-ovuled cells, or 1-celled and 1-ovuled by atrophy of the septum ; style terminal, simple or 2-partite ; ovules solitary or collateral, erect, anatropous. Fruit either capsular, 1-4-celled, valves separating from the placentiferous column at its base ; or fleshy, indehiscent. Seeds erect ; testa sometimes very villous ; albumen mucilaginous, scanty. Embryo more or less curved ; cotyledons foliaceous, folded or crumpled ; radicle near the hilum, inferior. [Arrangement of Convolvulacece : — Tribe I. Argyreiea:. — Fruit indelijscent, coriaceous or sub-baccate. Carpels connate ; style simple. Embryo with distinct cotyledons. Rivea, Argyreia, &c. Tribe II. Convolvulea:.— Fruit capsular. Carpels connate ; style simple. Embryo with distinct cotyledons. Quamoclit, Batatas, Pharbitis, Ipomoea, Jacquemontia, Convolvulus, Aniseia, Parana, Evolvulus, &c. Tribe III. Dichondrea:. — Fruit of distinct dry carpels, each with one style. Embryo with distinct cotyledons. See Dichondrea:, p. 567. Tribe IV. Cuscutea:. — Fruit capsular, often transversely dehiscing. Carpels connate ; styles 2, rarely connate. Embryo spiral, without distinct cotyledons. See Cuscctea:, p. 568. Tribe V. Erycibea:. — Fruit baccate. Carpels connate into a 1-celled ovary with a sub- sessile 5-lobed stigma. Embryo with distinct cotyledons. Erycile.'] Convolvulacece are near Cuscutece and Dichondrece (see these families). They approach Poletnoniacece in the insertion, isostemony and aestivation of the corolla, structure of the ovary, anatropy and position of the ovules, capsular fruit, alternate leaves, and often climbing stem ; but in Polemoniacece the ovary lias three many-ovuled cells, the capsule has semi-septiferous valves, the embryo is straight and axile, and the fleshy albumen abundant. There is a certain analogy between Convolvulacece and Cordiacece in the form and aestivation of the corolla, the 2-4-celled ovary, bifid style and anatropous ovules; but in Cordiacece the radicle is superior, the straight embryo exalbuminous, and the cotyledons are folded longi- tudinally. The erect species approach Solanece in the insertion, isostemony, aestivation and form of the corolla, in the 2-celled ovary, capsular or berried fruit, curved embryo, inferior radicle, and alternate leaves ; but in Solanece the ovule is campylotropous, the albumen copious, and the radicle is distant from the hilum. There is also a distant connection between Convolvulacece and HydrophyUece (which see). CLTI. DICHONDREiE. 567 Convolirulacea are chiefly tropical; they decrease northwards, and are very rare in our climate, and absolutely wanting in the arctic regions and ou mountains. Many species possess a milky juice contain- ing a highly purgative resin ; this resin, which especially abounds in the rhizome, owes its properties solely to the presence of an aromatic principle ; for rhizomes which have been pulverized and long ex- posed to the air lose it, although preserving the purely resinous principle. The species most in use are Jalap (Convolvulus Jalapa and C. Sckiedeanus), from Mexico [the best is from Exvgonium Purga) ; the Turbith (C. Turpethum ), a native of the East Indies; Scammony (C. Scammonia and C. sugittafolius), from the Asiatic Mediterranean region [and the Ipnmaa panduraf.a of the United States]. The rhizomes of our indigenous Bindweeds are also purgative, but the exotic species are much more active. The American genus Batatas comprises several species in the rhizomes of which (called Sweet Potato) the resinous principle is replaced by au abundant quantity of starch, and they are thus sought for as a food similar to potatos. [Convolvulus disseclus is said to abound iu prussic acid, and to be used iu the preparation of Noyau. Oil of Rhodium is the produce of the rootstock of Rhodorhiza. — Ed.] CHI. DICIION DREJE. (Con volvul ace arum genera, Endlicher.) This little family may be considered as a tribe of Convolmlacece, with which they agree in the inser- tion, regularity, and isostemony of the corolla, the number of carpels and of the erect anatropous ovules, the mucilaginous, albumen, and the contortuplicate cotyledons ; it has been separated on account of its Dichondra rcpens. Flower cut vertically (mag.). Dichondra . Corolla and androecium laid open (mag.). Dtchondra, Diagram. Dichondra. Pistil vmag.). Dichondra. Single carpel (mag.). Dichondra . Carpel cut vertically (mag.). 563 CLIII. CTJSCUTEiE. o © Dichondra. Dichondra. Dichondra. Dichondra. Dichondra. Ovule (mag.). Embryo (mag.). Embryo (mag.). Seed (mag.). Seed cut transversely (mag.). free carpels (of which there are 2-4, united in pairs), its basilar styles and the valvate aestivation of its corolla. The genus Dichondra comprises a few herbaceous, climbing, not milky species, which live in the hot regions [chiefly] of the southern hemisphere and of America. The geuus Falkia is founded on a South African shrub. CLIII. CUSCUTEEE, (Convolvulorum pars, Jussieu. — Cuscutea:, Presl. — Cuscutina:, Link.) Cuscuta. Transverse section of fruit (mag.)* Cuscuta. Seed (mag.). Cuscuta. Seed cut vertically, showing the embryo coiled round the albumen (mag.). The genus Cuscuta, which constitutes this little family, is separated from Convolmdacece only by it3 filiform stems of a reddish or greenish-yellow colour, the absence of leaves, and its parasitism on other plants by means of suckers, by the [often] transverse dehiscence of its capsular or sometimes fleshy fruit and by the acotyledonous embryo, which is coiled spirally round the albumen. The flowers are in a head or spike, and are usually bracteate. Cuscutece inhabit all hot and temperate regions, as parasites on the stems of many herbaceous or even woody plants, which they exhaust by absorbing their elaborated sap. The Small Dodder (C. minor) lives on Field Clover, Lucerne, Thyme, Broom, Furze, Heath, &c. ; the C. densiflora infests Flax fields ; the Large Dodder (C. major ) is parasitic on Nettles and Hops, and even invades the peduncles of the Vine, enclosing them in its thread-like branches, whence the name of Bearded Grapes, given to the clusters whose nutriment it has appropriated. CLTY. BORRAGINEiE. 569 CLIV. BORRAGINEIE. (Asperifoli,e,B. — Borragine^e, Jussieu. — Borragine^e et HELiOTROPiCE*E,$c/\ — Arguzie^e et Borragine.e, Link. — Ehretiace^e et Borraginace^e, Lindl. — Asperifoij.e, Encllicher.) Borage. ( Borrago officinalis.) Borage. Flower cut vertically (mag.;. I'vhnonat m officinalis . Myosotis. A! yosol is. Fruit entire (mag.). Fruit cut vertically (mag.). Comfrey. • Carpel, entire and cut vertically (u.ag.). 570 CLIY. BORRAGINEiE. Comfrey. ( Symphytum officinale.') fit Comfrey. Flower (mag.). Ehretia. Androecium and corolla laid open (mag.). ristil and calyx cut vertically (mag.). Ehretia. Ehretia. Diagram Transverse section of ovary (mag.). Cerinlhe. Flower. Cerinthe . Pistil. Ehretia. Pistil (mag.). Ehretia. Pistil cnt vertically (mag.). CLIV. BORRAGINEiE. 571 Cynoglossum omphalodes. ( Omphalodes verna. ) Cy nogloss um . Fruit unequally developed (mag.)* Bugloss. Flower (mag.). Bugloss. Fruit (.mag.). Cynoglossum . Pistii (mag.). Heliotrope. Androecium and corolla laid open Flower (mag.). (mag.). Heliotrope. Pistil (mag.). Tourne/ortia. Fruit (mag.). Tourne/ortia. Fruit cut vertically (mag.). Tourne/ortia. Fruit cut transversely (mag.). Tourne/ortia. Seed cut vertically (mag.). Heliotrope. Carpel cut vertically (mag.). Corolla monopeialous, hypogynous, isostemonous, aestivation imbricate. Stamens 5, inserted on the corolla. Ovary with 2 bipartite carpels ; style gynobasic ; ovules •1, appendiculate, anatropous or semi-anatropous. Embryo usually exalbuminous ; radicle superior. — Inflorescence a scorpioid raceme. Herbs, shrubs or trees, usually liispid. Leaves generally alternate, simple, entire, exstipulate. Flowers g , rarely $ 9 , regular, sometimes irregular, solitary in the axils of the leaves, or in panicles, corymbs, or terminal scorpioid unilateral racemes. Calyx persistent, monosepalous, 4-5-partite. Corolla hypogynous, monopetalous, deciduous, tubular-infundibuliform, campanulate or rotate ; throat naked, or furnished with hairs, scales or protuberances ; limb 5-fid, aestivation imbricate. Stamens 5, inserted on the tube or throat of the corolla, alternate with its divisions; a«7/iers introrse,2-celled, with longitudinal dehiscence, usually free, some- times slightly cohering at the base or top. Carpels 2, antero-posterior, more or less distinct, with 2 more or less connected 1-ovuled cells, usually forming together a 1-lobed ovary, inserted on a central column ( gynobase ) formed by the thickened style- base at its union with the receptacle ( gynophore ) ; style either gynobasic or ter- minating the united carpels; ovules pendulous from the inner angle of the cell, 572 CLIY. BORRAGINEiE. anatropous or semi-anatropous. Fruit composed of 4 distinct or geminate nucules, or a drupe with 2-4 kernels. Seeds inverted, straight, or a little arched ; albumen 0, or reduced to a fleshy layer. Embryo straight or a little curved; radicle superior. [Borraginece have been thus classified by De Candolle : — Tribe I. Cordie®. — Ovary undivided ; style terminal (rarely 0), twice forked. Fruit indehiscent, usually fleshy, 4-seeded. Cotyledons longitudinally folded. Albumen 0. Shrubs or trees. See Cordiace®, p. 573. Tribe II. Ehretie®. — Ovary undivided ; style terminal, 2-lobed. Fruit indehiscent, 4- seeded. Cotyledons flat. Albumen scanty, fleshy. Shrubs or small trees. Ehretia , Tourne. fortia, &c. Tribe III. Heliotropie®. — Ovary several- celled ; style terminal, simple. Fruit dry, entire, or separating into cocci. Albumen scanty or 0. Cotyledons flat. Heliotropium, Heliopliytum, &c. Tribe IY. Borrage®. — Ovary of 2 2-celled or 2-partite carpels ; style ventral or basal. Fruit 2-4-partite. Seeds exalbuminous. Herbs, rarely shrubs. Sub-tribe 1. Cerinthe®. — Corolla regular, throat naked. Carpels 2, 2-celled. Nucules with a flat areole, seated on a flat torus. Cerinthe. Sub-tribe 2. Ecuie®. — Corolla irregular, throat naked. Carpels 4. Nucules distinct, with a flat imperforate areole, seated on a flat torus. Lobostemon, Ecliium, &c. Sub-tribe 3. Anciiuse®. — Corolla regular, with scales under the middle of the lobes. Nucules 4, dehiscing transversely at the base, which hence appears perforate or excavated. Nonnea, Borrago, Symphytum, Ancliusa, Lycopsis, &c. Sub-tribe 4. Lithosperme®. — Corolla regular, with or without fornices. Nucules 4, distinct, 1-celled, with a minute flat imperforate base. Onosrna, Moltlcia, Ldthospermum , Mertensia, Bulmonaria, Alhanna, Myosotis, &c. Sub-tribe 5. Cynoglosse®. — Corolla regular, with or without fornices. Nucules 4, usually echinate or winged, imperforate at the base, very obliquely inserted on the torus. Eritrichium, Echinospermum, Cynoglossum, Omphalodes, Mattia, Trichodesma, &c. Sub-tribe 6. Rochelie®. — Corolla regular. Ovary of 2 1-celled 1-seeded carpels adnate to the style, liochelia.'] Borraginece approach Labiatce and Verlenacece in the insertion and aestivation of the corolla, arrangement of the carpels and style, anatropous ovules, nature of the fruit, and usually the absence of albumen ; but in Labiatce and Verbenacece the corolla is very irregular, the stamens are didynamous, the ovules erect or ascending, the stem square, and the leaves opposite. There is also an affinity between the tribe Ehretiece and Cordiacece, founded on the insertion, regularity and isostemony of the corolla, the pendulous anatropous ovules, terminal bifid style, fleshy fruit, absent or scanty albumen, and alternate leaves ; the diagnosis principally rests on the contorted aestivation of Cordiacece and their longi- tudinally folded cotyledons. Borraginece inhabit [chiefly] extra-tropical temperate regions, and especially the Mediterranean region and Central Asia. The tribe of Ehretiece is chiefly tropical. Many species contain a mucilage, to which is often added a bitter astringent principle, to which they owe their medi- cinal qualities. The root of the Comfrey ( Symphytum officinale ) is employed in cases of haemoptysis. The leaves of the Borage ( Borrago officinalis ) are filled with a viscous juice abounding in nitrates, whence their diuretic and sudorific properties. Cynoglossum officinale, the poisonous smelling root of which was a reputed narcotic, is now only administered with opium. The following are no longer used: — Bulmonaria officinalis, of which the white spotted leaves, like a tubercled lung, were employed in lung diseases ; CLV. CORDIACEiE. 573 Viper’s Ttugloss (Ecliium vulgare), the flowering tops of which were recommended for the bite of the viper ; Gromwell ( Lithospemium officinale ), commonly termed Pearlwort, on account of its hard and pearl-grey nucules, which were supposed to be of use in dissolving bladder-stones; and Heliotropium europium, of which the bitter and salt leaves were applied to ulcers and warts. Tournefortia umbellata is still used in Mexico as a febrifuge. In tropical America and in India certain species of Tiaridium are used in herpetic affec- tions. Some Eliretiece have an edible fruit. Finally, the roots of several species of Anchusa , Onosma, Lithntpermum, Amelia, contain a red colouring matter, soluble in alcohol and fatty bodies, which is em- ployed to colour certain unguents and other external applications. CLV. CORD I ACE uE. (Cordiace^e, Br. — Cordie/E, Dumortier .) C. Gerascanthus. Cordia Geraxanthus. Transverse section of ovary Flower cnt vertically (mag.). (mag.). Cordia Gerascanthus. Flower (mag.). Cordia Myxa. Flower (mag.). C. (Myxce). Transverse section of drupe (mag.). C. Gerascanthus. Pistil (mag.). C. Gerascanthus. Upright ovule (mag.). C. Mijxib. Pendent ovule (mag.). 574 CLYT. NOLANEiE. C. (Myxoe). C. (Myxoe). Fruit enveloped in Fruit deprived of the the calyx (mag.). calyx (mag.). C. {Myxoe). Kernel deprived of the pericarp (mag.). C. {Myxoe). Transverse section of the seed (mag.). C. {Myxoe), Embryo (mag.). Corolla hypogynous, monopetalous, isostemonous, generally regular, aestivation contorted. Stamens 5, inserted on the corolla. Ovary 4-8 -celled ; ovules appendicu- late or erect, anatropous. Fruit drupaceous. Embryo straight, exalbuminous ; coty- ledons longitudinally folded. Trees or shrubs. Leaves alternate, simple, coriaceous, scabrous, exstipulate. Flowers g , or $ ? , terminal, in a panicle or corymb, sometimes in a more or less contracted spike, ebracteate. Calyx persistent or accrescent, 4-toothed or 4-5- partite. Corolla monopetalous, hypogynous, infundibuliform or campanulate, limb usually 5-fid, mstivation convolute or contorted. Stamens inserted on the corolla- tube, alternate with its lobes ; filaments filiform or subulate ; anthers 2-celled, dehis- cence longitudinal. Ovary free, 4-8-celled ; style terminal, dichotomous, or twice dichotomous at the top ; stigmas 4 or 8 ; ovules solitary in each cell, appendiculate or erect, anatropous. Drupe fleshy, with one bony 4-8-celled stone, or 1-celled by arrest. Seeds with a membranous testa. Embryo exalbuminous, straight, with thick fleshy cotyledons, forming many contiguous longitudinal folds ; radicle short. PRINCIPAL GENERA. Cordia. Varronia. We have indicated the more or less real affinities between Cordiacece and Borraginece and Convolmo- Ictcece (which see). Cordiacece mostly inhabit the intertropical regions of the Old and New Worlds. The drupe of Cordia is mucilaginous, of a pleasant and slightly astringent taste, acid in some species. The cotyledons contain a mild oil. Cordia Myxa is an Asiatic tree, which has been cultivated in Egypt from time immemorial. The ancients employed its fruit as an emollient in affections of the lungs, and its bark in astringent gargles. C. Sebestena, a tree of the Antilles, possesses the same proper- ties. C. Rumpliii produces a wood of a maroon brown, elegantly veined with black, and which smells like musk. CLYI. NOLANE JE. (Solanacearum tribes, Dunal. — Nolanea:, G. Don. — Nolanaceai, Endlicher.) Herbaceous or sub-woody prostrate plants. Leaves alternate, geminate, entire. Peduncle 1-flowered, extra-axillary. Calyx campanulate, 5-partite, persistent, [valvate]. Corolla hypogynous, monopetalous, infundibuliform ; limb folded, 5-10- CLVII. SOLANEiE. be o Nolana paradoxa. Nolana. Pericarp opened, showing a seed (mag.). N. prostrata. Seed c ut vertically (mag.). y. prostrata. Drape, showing the g.v no basal insertions (mag.). N. atriplicifolia. Pistil (mag.). lobed. Stamens o, inserted on the corolla-tube, exserted. Ovaries numerous, in- serted on a fleshy disk, hypogynous, distinct, 1-6-celled; style solitary, central, basilar, simple ; stigma capitate ; ovules solitary, erect in each cell. Drupes distinct, fleshy, with a bony eiulocarp. Seeds reniform, compressed ; albumen fleshy. Embryo filiform, annular or spiral ; radicle inferior. This little order is formed by the genus Nolana, formerly placed by A. L. de Jussieu at the end of liorratfine

fficinalis (the Gratia Dei, or Poor Man’s Herb) contains a resinous and acrid principle, and is 588 CLX. VERBASCEiE. hence a very energetic but sometimes dangerous purge. [It is the reputed basis of the eau medicinale, a famous gout medicine]. Of all the medicinal Scrophularinece the most useful is the Foxglove ; its very bitter and rather acrid leaves are poisonous in large quantities, but in small doses are diuretic, lower the pulse and subdue palpitations ; its active principle, digitaline, is poisonous even in minute doses, so that many practitioners prefer administering the plant itself. \_Scoparia dulcis, a common tropical weed, is a famed febrifuge in America. Some are intense bitters, as the Indian Herpestes amara, and the Himalayan Teeta ( Picrorhiza Teeta), a renowned Indian ague medicine. Brumfekia ( Franciscea ) uniflora is the Mer- curio Vegetal or Manaca of the Brazils, with a bitter nauseous bark that .acts like mercury on the lym- phatics, and is an active poison in overdoses.] CLX. VERBASCE ^E. 1 (Solanearum genus, Jussieu. — Scrophularinearum sectio, Endlicher. — Yerbasceai, Bartling.) Mullein . ( Verbascum Thapsus.) Mullein. Flower cut vertically (mag.). Mullein. Diagram. Mullein. Corolla laid open, showing pen- tandrous androecium with unequal and dissimilar filaments (mag.). Mullein. Seed, entire (mag.). Mullein. Seed, cut vertically (mag.). Mullein. Horizontal section of ovary (mag.). Mullein. Capsule with septi- cidal dehiscence (mag.). Corolla monopetalous, hypogynous, isostemonous, sub-irregular, aestivation imbri- cate. Stamens inserted on the corolla-tube ; filaments unegual ; anthers sub-l-celled. Ovary with 2 many-ovuled antero-posterior cells ; placentae on the septum. Ovules See Tribe II. of Scrophularinece, p. 586.— Ed. CL XT. UTRICULARTEiE. 589 anatropous. Capsule 2 -valved, septicidal. Seeds minute. Embryo straight, albu- rn inous. Biennials, rarely perennials, generally cottony or woolly, with watery often mucilaginous juice. Leaves alternate, often decurrent, exstipulate. Flowers $, a little irregular, fascicled, rarely solitary, in simple or branching spiciform racemes. Calyx monosepalous, 5-partite, persistent. Corolla hypogynous, monopetalous, isostemonous, sub-rotate ; limb 5-partite, caducous, aestivation imbricate. Stamens 5, inserted on the corolla-tube, and alternate with its lobes ; filaments unequal ; anthers fixed by the middle, or throughout their length, of 2 confluent cells. Ovary with 2 antero-posterior cells, placentae on the septum ; style undivided, dilated at the top ; stigma simple or bilobed ; ovules numerous, anatropous. Capsule 2-celled, septicidally 2-valved, valves bifid at the top. Seeds minute, rugose. Embryo straight, in the axis of a fleshy thick albumen. PRINCIPAL GENERA. Verbascum. Celsia, & c. This little order, mainly composed of the genus Verbascum (Mullein), agrees with Solaneee in its isostemonous corolla, and with Scrophidarine, and they further differ from Pedalincce in being capsular. They are also allied to tribe Cyrtandreee of Gesneracece (which see). Finally, they offer an evident resemblance to the genus Cubcca, in Polemoniacece , in the hypogynous corolla, the disk, many-celled ovary, the free seminiferous septum of the capsule, winged seeds, and compound leaves ending in a tendril ; but in Cobcca the leaves are alternate, the corolla is regular, isostemonous, and contorted in aestivation, and the embryo is albuminous. The w ood of some climbing Bignoniacece represents in section a sort of Maltese cross, resulting from the unequal development of the layers of liber ( Bignonia cruris and B. caprcolata). This family, remark- able for the beauty of its flowers, principally inhabits the tropics, especially of America. Some species are used in native practice, as Uruparaiba {Bignonia Leuco.rglon), of tropical America, the bark of which is supposed to be an antidote to the Manchineel. The leaves of many species of Jacaranda contain an acrid and astringent principle, whence they are employed in Brazil as a prophylactic against glandular diseases. [CLXVII. CUES CENT1EJE. 1 (Crescentine^e, D.C. — Crescentiaceas, Lindl.) Small trees. Leaves alternate or fascicled, simple, exstipulate. Flowers from the old wood. Calyx inferior, undivided, rupturing irregularly. Corolla hypogynous, monopetalous, inferior, sub-2-lipped, lobes imbricate in aestivation. Stamens 4, inserted on the corolla, didynamous, fifth between the posterior pair and 1 This Order is omitted in the original work. 604 CLXVIII. ACANTHACEJE. rudimentary ; anthers 2-celled, dehiscence longitudinal. Ovary seated on an annular disk, free, of 2 connate antero-posterior carpels, 1-celled ; placentas 2 or 4, parietal, sometimes produced as false septa ; style simple ; stigma 2-lamellar ; ovules very numerous, horizontal. Fruit woody, indehiscent, many-seeded, pulpy within. Seeds large, amygdaloid ; testa loose, leathery. Embryo straight, exalbuminous ; cotyledons plano-convex, fleshy ; radicle short, thick, next the hilum. Tribe I. Tanaicieai. — Fruit fleshy, elongate, 2- or more-celled. Leaves opposite, rarely whorled. Colea, Phyllarthron, Parmentiera, Tancecium, &c. Tribe II. Crescentie.r. — Fruit corticate, ovoid or globose. Leaves alternate. Crescentia, Kigelia, &c. Crescentiece are clearly related to Bignoniacece , of which I)e Candolle, and subsequently Boreau, have regarded them as a sub-order, distinguished by their indehiscent fruit, pulpy within, and wingless seeds. They are all tropical and widely dispersed, abounding in Madagascar and the Mauritius. The Calabash- tree ( Crescentia Cnjetc) of America is the most important to man of all Crescentiece ; its sub-acid pulp is edible, and its dried pericarp, which is used as a substitute for bottles, &c., is so hard as to admit of water being repeatedly boiled in it. Parmentiera cerifera, the Candle-tree or Palo de Velas of Panama, bears a long candle-like fruit, greedily eaten by cattle, to the flesh of which it communicates its apple-like flavour. P. edulis is eaten by the Mexicans. Various species yield timber. — Ed.] CLXVIII. A CAN Til A CEAE. (Acanthi, A.-L. de Jussieu. — Acanthace^e, B. Brown.) Corolla hypogynous, monopetalous, 5-cleft, usually irregular, anisostemonous, (Estivation imbricate. Stamens inserted on the corolla, 4 didynamous, or 2. Ovary 2-celled ; ovules campylotropous, seated on a prolongation of the placenta. Fruit capsular. Embryo usually curved, exalbuminous. — Leaves opposite or whorled. Herbs sub-woody at the base, or woody, stem and branches jointed, nodes tumid. Leaves opposite, or in whorls of 3 or 4, exstipulate. Flowers 5 , irregular, axillary or terminal, spiked racemed or fascicled, rarely solitary, bracteate and 2-bracteolate; bracteoles minute, or very large when the calyx is small or obsolete. Calyx of 5 segments, equal or unequal, distinct or variously coherent or 4-fid or -partite, sometimes obsolete or reduced to a truncate entire or toothed ring. Corolla monopetalous, tubular, liypogynous ; limb usually bilabiate, upper lip bifid, sometimes obsolete, lower 3-lobed, aestivation imbricate. Stamens inserted on the corolla- tube, usually 4 didynamous, the fifth or posterior rudimentary or obsolete, sometimes 2 by arrest of the 2 anterior ; filaments filiform or subulate ; anthers sometimes 2-celled with opposite parallel cells, often appearing 1-celled from the contiguity of the cells ; sometimes 1-celled from the unequal insertion or obliquity or super- position or divergence of the cells, of which one is rudimentary or obsolete. Ovary superior, cells 2, antero-posterior, septum double, 2-3-4-many-ovuled ; style termi- nal, simple, filiform ; stigma usually 2-fid, rarely undivided ; ovules campylotropous or semi-anatropous, 2-seriate along the middle of the septum, usually seated on a process of the placenta. Capsule membranous coriaceous or cartilaginous, sessile. CLXVIIT. ACANTHACEiE. 605 or contacted into a pedicel, obtuse or acute, 2-celled, some- times opening elastically into 2 boat-sliaped semi - septiferous entire or 2 -partite valves, sometimes indehiscent by ar- rest of one of the cells. Seeds rounded or compressed, gene- rally supported by subulate or hooked processes (retinacula) arising from the septum, which is sometimes reduced to a mere cupule ; testa soft, or covered with mucilaginous hairs. Em- bryo exalbuminous, usually curved ; cotyledons large, orbi- cular, plano-convex, sometimes crumpled ; radicle cylindric, descending and centripetal. [The Asiatic and African genera of Acanthacece have been grouped as follows by Dr. Thomas Anderson, who con- siders that the American and other genera will foil under the same tribes : — Sir-order I. THUNBERGIDEiE. Calyx reduced to a ring. Corolla-lobes contorted. Seeds with a enpuliform fnnicle. Stem usually twining. Tliunhcryia ( acentrie). Sub-order II. RUELLIDA1 Calyx herbaceous, 5- (rarelv •1-) partite. Corolla-lobes contorted. Seeds inserted on a booked reti- naculum or on a papilla. Stem not twining. Tribe I. Nelsonie.e. — Calyx small, herbaceous. Seeds minute, globose, inserted on a small papilla. Elytraria , Ebermayera, Nclsmia, Adenosma. Acanthus mollis. 606 CLXVIII. ACANTHACEAb Tribe II. Ruelbie#:. — Calyx small, herbaceous. Seeds large, compressed, retinaculum hooked. Nomaphila, Hygrophila, Calophanes, Buellia, Stenosip h onium, Strobilanthes, Gold- fussia, TEchmanthera, Brillantaisia , Whitfieldia, Ac. ACANTHIDE^E. Corolla-lobes imbricate. Seeds with a hooked Sub-order III. Calyx herbaceous, 5- (rarely 4-) partite, retinaculum. Tribe III. Barlerie2E. — Corolla liypocrateriform or funnel-shaped (2-labiate in Lepida- gathis). Barleria, Neur acanthus, Crossandra, Lepidagathis, Blepharis, Acanthus, Geissomeria, Aplielandra, Androgr aphis, Gymnostachyum, Lankcsterla, &c. Tribe IV. Phlooacantheas. — Corolla tubular ; limb 2-labiate. Stamens 2 ; anthers 2-celled, cells parallel, not spurred. Capsule sub-terete, many-seeded. Inflorescence terminal, spicate. Phlogacanthus. Tribe V. Justicie^:. — Corolla 2-labiate; lower lip 3-fid; mid-lobe the largest; upper 2-toothed. Stamens 2. Justicia, Adhatoda, Gendarussa, Beloperone, Anisacanthus, Bungia, Bicliptera, Beristrophe , Hypoestes, Bhinucanthus, Graptopliyllum, Duvernoia, &c. Tribe VI. Aststasieas. — Corolla funnel- shaped or campanulate, rarely liypocrateriform, 2-lipped in aestivation. Stamens 4, 2 usually imperfect. Eranthemum, Asystasia, Maclcaya, &c. — Ed.] Adhatoda. Anther with unequal cells (mag.). Adhatoda betonica. Corolla (mag.). Adhatoda. Style and stigma (mag.). CLXIX. SESAMEJE. G07 Adhatoda. Pistil and disk (mag.). Ruellia. Rutllia. Capsular fruit with Valve of fruit, semi- 2 cells, dehiscing septiferous, showing loculicidally the process supporting (mag.). the seeds (mag.). Rtlellia pntula. Seed (mag.). Ruellia. Transverse section of fruit (mag.). Seed cut vertically (mag.). Ruellia. Transverse section of seed (mag.). Acantbaceee approach Labiatee and Verbennceee in the irregular anisostemonous corolla and its aestivation, and exalbuminous embryo with descending radicle and opposite leaves; they are separated by the curved ovules, capsular fruit with compressed valves, and retinacula. We have indicated their affinity with Scrophularinea and Bignoniacea (which see). This family almost exclusively inhabits the tropics. Acanthaeea furnish no species to European medicine. They contain, however, an abundant mucilage, sometimes combined with a bitter principle ; others are somewhat acrid, others contain a stimulating volatile oil. The mucilaginous Acanthaccce are employed in India as emollients and bechics; the bitter species are reported tonics and febrifuges ; the acrid are considered to excite the functions of the skin and of the mucous membrane. Some are dyes [especially a Bengal Ruellia, which pro- duces the blue Room dye of India. Gmdarussa vulgaris is in India a famed cure for rheumatism, it is also a febrifuge, and its dried leaves preserve clothes from insects. The popular French tonic, drogue ombre, is the tincture of Justicia jianicidata. — Ed.]. CLXIX. SESAMEJE. (Pedaline^e, R. Br. — Sesames, Kunth. — Martyniace^e, Link.) Corolla hypogynous, monopetalous , irregular , usually anisostemonous, aestivation imbricate. Stamens generally 4, didynamous, inserted on the corolla; anther-cells 2, shorter than the connective, glandular at the top. Ovary 2- 4- or 1 -celled, girt at ue by a glandular disk-, ovules anatropous. Fruit a capsule, drupe or nucule. Embryo straight, exalbuminous or sub-ezalbuminous. Herbs with vesicular glands. Leaves opposite or alternate, simple, exstipu- late. Flowers 2 , irregular, axillary, solitary, or racemed or spiked, usually 2-bracleolate. Calyx 5-partite or -fid, almost equal, sometimes split on one side 608 CLXIX. SESAMES. and spatliaceous (Crcmiolaria) . Corolla monopetalous, hypogjmous ; tube cylindric or gibbous ; throat swollen ; limb usually bilabiate, 5-lobed, sestivation imbricate or sub-valvate. Stamens 5, inserted on the corolla-tube, the upper sterile, the other 4 fertile, didynamous, sometimes the 2 shortest sterile, and the fifth rudimentary ( Martynia ) ; anther-cells 2, equal, parallel or divergent, connective jointed on to the filament and prolonged upwards as a glandular appendage. Ovary superior, base girt with a glandular disk, 2- 4- or 1- celled by arrest of the septa ; style terminal, simple ; stigma bilamellate ; ovules anatropous. Capsule of drupe often with an angular and coriaceous epicarp. Seeds generally pendulous ; albumen absent, or nearly so. Embryo straight; cotyledons plane or plano-convex; radicle superior, inferior, or centripetal. S escirrum Diagram Sesamum. Embryo (mag.). Sesamum orientate. Sesamum . Ovary cut transversely (mag.). Sesamum. Fruit (mag.). Cranio! aria. Flower. Craniolariafragrans. Calyx and pistil. Sesamum. Pistil (mag.). CLXIX. SESAME2E. 609 Martynia lutea. Ovary cut transversely (mag.) Pedal mm mure x. Fruit. Martynia lutea. M. lutea. Pistil. Seed. Martynia lutea. Diagram. Martynia lutea. Fruit. Martynia diandra. Ovary cut transversely (mag.). M. diandra. Fruit. Tribe I. EUSESAME2E. Capsule 1-celled, 2-valved, seminiferous septum free; seeds numerous, 1-seriate, fixed at tlie central angle of the cells, ascending or horizontal ; albumen very scanty. — Stigma irritable. PRINCIPAL GENUS. * Sesamum. Tribe U. PEDALINE2E. Fruit 4- or pseudo- 1-celled, sub-capsular or drupaceous, indehiscent or obscurely dehiscent at the top. Seeds usually few, pendulous or horizontal, rarely erect and solitary (Joseph inia), completely exalbuminous. PRINCIPAL GENERA. * Craniolaria. Pedalium. Josepbinia. * Harpagophytum. ‘Martynia. Lncaria. Pterodiscus. Pretrea. R R 610 CLXX. MYOPOBINE2E. Sesameee are very near Bignoniacece (which see) ; they are connected with Gesneracece through Craniolaria and Martynia, and are further connected with Verbenaccce and Myoporinece (which see). This family inhabits the tropics of both worlds and South Africa. Few of the species are useful. The seeds of Sesamum orientale and S. indicum yield a bland oil, used by Orientals as food, medicine, and as a cosmetic, called Sesamum or Gingilie oil. The cultivation of these plants, which was spread for ages over Asia and Africa, now extends to the New World. The importation of Sesamum seeds into France amounted in 1855 to sixty millions of kilogrammes (58,940 tons) ; the oil extracted from them is princi- pally used in the manufacture of soap. Pedalium Murex exhales a strong musky odour, and the thick juice contained in its vesicular glands is employed in India to give a mucilaginous consistency to water, and thus render it emollient. The Creoles of America eat the raw root of Craniolaria annua with sugar ; it is fleshy and mild-tasted, and when dried is employed in preparing a bitter and cooling drink. [The curious 2-horned fruit of Martynia proboscidea is the Testa di Quaglia of the Italians, notorious for its cleaving to clothes, &c.; JJncaria procumbens is the famous Grapple-plant of South Africa, the fruit of which is dispersed by animals to whose fur its hooked horns enable it to cling.] CLXX. MYOPORINECE. (Myoporina:, Br. — Myoporinea:, Jussieu. — Myoporacea:, Lindl.) Mioporum parviflorum. ( Myoporum . Flower (mag.). Myoporum. Diagram. Stenochilus. Flower (mag.). Myoporum. Seed, entire and ent vertically (mag.). Myoporum, Fruit cut vertically (mag.). Myoporum. Fruit cut transversely. CLXXI. SELAGINE^. 611 Corolla monopetalous, hypogynous, irregular or sub-regular, anisostemonous. Stamens 4, didynamous, inserted on the corolla. Ovary 2-4 -celled ; ovules pendu- lous, anatropous. Fruit a drupe, cells 1-4 -seeded. Embryo straight, albuminous ; radicle superior. Shrubs or undershrubs. Leaves .alternate, rarely opposite, simple, entire or toothed, usually studded with resinous glands, exstipulate. Flowers 5 , axillary ; pedicels 1 -flowered, rarely branched into a cyme, ebracteate. Calyx 5-partite or -fid, persistent, scarious. Corolla monopetalous, 5-lobed, sub-regular or ringent, {estivation imbricate. Stamens 4, inserted at the base of the corolla, alternate with its lobes ; filaments filiform ; anthers introrse, versatile, cells confluent. Ovary 2-celled, cells antero-posterior, sometimes more or less perfectly subdivided by a secondary septum from the axis ; style terminal, simple ; stigma emarginate, rarely 2-fid ; ovules 2 collateral in each carpel, rarely 4 imbricate in pairs, pendulous, anatropous. Drupe succulent or nearly dry, 2-celled or more or less completely 4-celled. Seeds inverted. Embryo cylindric, in the axis of a scanty fleshy albumen; cotyledons semi-cylindric ; radicle near the liilum, superior. GENERA. * Myoporum (Stenochilus). Pholidia. Eremophila. Bontia. Afyoporinece are connected with Verbenacea, as we have already shown. They approach Selaginece in hvpogynism, the anisostemonous imbricate corolla, didynamous stamens, 1-celled anthers, 2 car- pels, pendulous and anatropous ovules, albuminous embryo and alternate leaves ; but Selaginece ditl'er in their terminal spiked inflorescence, 1-ovuled cells, and fruit composed of 2 achenes. The affinities are the same between Myoporinece and Globulariece, but these differ in their terminal capitulum, their 1-celled and -ovuled ovary, and their fruit being a caryopsis. Myoporinece are mostly natives of Australia and some of the Pacific Islands. One genus ( Bontia ) is found in the Antilles. They are generally studded with resinous glands, and in some species the resin exudes in transparent drops. They are .of no use to man ; some ( Myoporum parvijlorum, &c.) are cultivated in Europe as ornamental plants. CLXXI. SELA GlNEsE. 1 (Selaginece, Jussieu. — Selaginace/E, Lindl.) COROLLA monopetalous, hypogynous, sub-regular, anisostemonous, aestivation imbri* cat'. Stamens 4 nearly equal, or 2 inserted on the corolla. Ovary of 2 1 -ovuled cells ; ovules pendulous, anatropous. Fruit of 2 achenes. Embryo albuminous ; radicle superior. Herbs or branching undershrubs. Leaves alternate or fascicled, sometimes sub-opposite, simple, usually linear, exstipulate. Flowers 3 , generally irregular, bracteate, spiked, solitary or panicled or corymbose. Calyx persistent, mono- 1 Reduced by Harvey to a sub-order of Verbcnaccce. — Ed, h n 2 612 CLXXI. SELAGINEiE. Selago corymbosa. Hebenstreitia. Transverse section of fruit (mag.). Selago cinerea. Corolla and andrcecium laid open (mag.). Selago. Ovule (mag.). Selago. Stamen (mag.). Hebenstreitia. Fertile carpel, outer face. Hebenstreilia. Hebenstreitia. Hebenstreitia. Hebenstreitia. Hebenstreitia. Fertile carpel, Fertile carpel cut Sterile carpel, Sterile carpel, Seed cut verti- inner face. vertically (mag.). outer face. inner face. caliy (mag.). sepalous, spathiform or tubular, 5-3-tootlied or -partite, rarely of 2 free sepals. Corolla hypogynous, monopetalous, deciduous ; tube entire or split lengthwise ; limb 4-5-lobed, 1-2-labiate or sub-regular, spreading, aestivation imbricate. Stamens inserted on the corolla-tube, alternate with its segments, sometimes 4 sub-didyna- mous, or equal with a rudimentary fifth, sometimes 2 only ; filaments filiform ; anthers 1-celled, dehiscence longitudinal. Ovary free, of 2 antero-posterior cells ; style terminal, simple ; stigma undivided, sub-capitate ; ovules 1 in each cell, pendulous from the top cell, anatropous. Fruit of 2 achenes, free when ripe, often unequal, one sterile or obsolete ; pericarp membranous, adherent to the seed, rarely spongy or furrowed with cellules. Seeds inverted ; testa coriaceous. Embryo straight, cylin- CLXXII. STILBINE^. 613 dric, in the axis of a fleshy albumen, which it equals in length ; cotyledons semi- cylindric ; radicle near the liilum, superior. PRINCIPAL GENERA. * Selago. * Ilebenstreitia. * Folycenia. Microdon. Dischisma. AVe have indicated the affinities of SelaginecB with Verbenaceee, Stilbineee, and Myoporinece (see these families). They are closely allied to Globularieat by the hypogynous 2-labiate corolla and imbricate aestivation, didynamous stamens and 1-celled anthers, pendulous and anatropous ovules, dry fruit, straight albuminous axile embryo and alternate leaves ; but in Globularieee the ovary is 1-celled, the fruit is a caryopsis, and the flowers are in a capitulum. All the Selaginece inhabit South Africa. Some are cultivated under glass in Europe ; the flowers of the Ilebenstreitia dentata have no scent in the morning, but a strong and disagreeable one at noon, and are very sweet in the evening. CLXXII. STILBINEEE. 1 (Stilbinea, Eunth. — Stilbacea:, Lindl.) Corolla monopet alous, hypogynous, sub-regular, anisostemonous, cestivation imbri- cate. Stamens 4, fertile, equal, inserted on the corolla. Ovary 2 -celled', ovules Still* pinastra. StMe. Flower (mag.). State. Corolla onexpanded (mag.). StUbe. Corolla, andrcecium, and style (mag.). Stilbe. Diagram. 1 Reduced by Harvey to a sub-order of Vcrbcnaccce. — Ed. Stilbe. Pistil (mag.). Stilbe. Transverse sec- tion of ovary (mag.). 614 CLXXII. STILBINE.E. Stilbe. Ovary (mag.). Stilbe. Ovary cub vertically (mag.). Stitbe. Ripe ovary cut vertically (mag.). Stilbe ericoides. Calyx laid open (mag.). Stilbe. Pollen (mag.). S. albiflora. Calyx laid open (mag.). S. albiflora. Corolla and androecium laid open (mag.). erect, anatropous. Fruit a capsule or utricle. Embryo straight, albuminous ; radicle inferior. — Stem woody. Leaves alternate. Heath-like shrubs. Leaves whorled, close-set, jointed on to the stem, ex- stipnlate. Flowers $ , in dense spikes terminating the branches, each with one foliaceous bract and 2 lateral bracteoles. Calyx coriaceous, persistent, tubular- campanulate, 5-fid or -partite, the 2 lower segments more distinct than the 8 upper, or equal, aestivation valvate. Corolla monopetalous, hypogynous ; tube infundi- buliform ; throat bristling with close hairs ; limb 5-partite, spreading, sub-bilabiate, aestivation imbricate. Stamens exserted, 4 fertile, inserted on the corolla-throat and alternate with its lobes, the fifth upper one sterile or obsolete ; filaments filiform, sub-equal ; anthers introrse, dorsifixed, cells often apart at the base, and slits longitudinal, confluent at the top. Ovary free, of 2 antero-posterior unequal lobes, cells 1-ovuled or one cell only fertile ; style filiform; stigma simple; ovules erect, anatropous. Fruit a 2-eelled capsule, loculicidally 4-valved at the top, or an indehiscent 1 -seeded utricle. Seeds erect. Embryo sub-cylindric, in the axis of a fleshy albumen, which is twice its length ; cotyledons indistinct ; radicle inferior. PRINCIPAL GENERA. Stilbe. Campylostachys. This small family approaches Verbenacece in the hypogynous irregular anisostemonous corolla, the 2-carpelled ovary, the erect and anatropous ovules, the spiked inflorescence, and the non-alternation of its leaves ; but Verbenacece differ in the didynamous stamens, fleshy fruit, and exalbuminous embryo. Selaginece, Myoporinece, and Globulariece are similarly allied with Verbenacece, and in addition their CLXXIII. VEBBENACEiE. CIS •embryo is albuminous, and the anther-cells are confluent after the opening of the flower. But in these three families the sestivation of the calyx is imbricate, the andrcecium is didynamous, the ovules are pendulous, and the leaves are alternate ; besides which, the fruit of Globulariece is a caryopsis, that of Selaginea consists of 2 achenes, and that of Mxjoporinece is a drupe with 2-4-cells. Stilbmeee inhabit southern Africa. They are shrubs which possess no useful property. CLXXIII. VERBENA CEEE. (Vitices, Jussieu [1789]. — Verbenace^e, Jussieu [1806].) Titer Agnus-easlus. Vitex. Pistil (mag.). Vervain. (Verbena officinalis.) Vervain. Flower (mag.). Vervain. Transverse section o£ ovary (mag.). Vervain. Flower cut vertically (mag.). GIG CLXXIII. VERBENACEvE. Yervaip. Corolla laid open (mag.). Vervain. Diagram. Vervain. Pistil (mag.). Vervain. Solitary carpel (mag.). Vervain. Carpel cut vertically (mag.). Corolla hypogynous, monopctalous, irregular, anisostemonous, aestivation imbri- cate. Stamens inserted on the corolla, usually 4 didynamous, or 2. Ovary 2-4-8- celled, cells 1-2 -ovuled ; ovules erect or ascending ; style terminal. Fruit fleshy. Embryo scarcely or not albuminous ; radicle inferior. Herbaceous or woody plants, stems and branches usually 4-gonous. Leav«es generally opposite, sometimes whorled, very rarely alternate ( Dipyrena , Amazonia), simple or compound, exstipulate. Flowers 5 , irregular, rarely sub-regular, in a spike, raceme, head, or cyme, rarely solitary, usually bracteate. Calyx monosepalous, persistent, tubular ; limb partite or toothed. Corolla liypogynous, monopetalous, tubular; limb 4—5-fid, usually unequal and labiate, rarely regular ( Tectona , Galli- carpa, JEgiphila) , aestivation imbricate. Stamens inserted on the corolla-tube or throat, generally 4, didynamous by arrest of the fifth, sometimes 2 by arrest of the 3 upper, very rarely 5 fertile ( Tectona ) ; anthers 2-celled, sometimes diverging, dehis- cence longitudinal. Ovary free, composed of 2-4 carjjels, 2-4-8-celled ; style terminal, simple ; stigmu usually undivided ; ovules solitai’y or geminate in each cell, sometimes erect and anatropous, or ascending and semi-anatropous, rarely reversed (. Holmskioldia ). Fruit a drupe or berry; drupe with 2-3-4 1-2-celled pyrenes, usually separating from the epicarp when ripe ; berries 2-4-celled, sometimes 1-celled by arrest. Seeds solitary in each cell, erect or ascending. Embryo exalbuminous or sub-exalbuminous, straight ; cotyledons foliaceous ; radicle inferior. [The following subdivisions of the order are those of Schauer in De Candolle’s ‘ Prodromus,’ and are followed by Bentliam as being more natural than any subse- quently proposed : — Tribe I. Verbenea:. — Inflorescence indefinite. Ovules erect, anatropous. Ovules 2 in each cell. Sub-tribe 1. Spielmanniea). — (Cape of Good Hope.) Spielmannia , Ovules 1 in each cell. Sub-tribe 2. Monochileje. — Racemes lax. Calyx sub-2-lipped. Corolla 1-lipped. Drupe. (Brazil.) Monochilus. Sub-tribe 3. Casselliea:. — Racemes axillary, few-fid. Calyx tubular. Corolla infundi- buliform. Drupe. (Tropical America.) Oassellia, Tamonia. Sub-tribe 4. Verrenea:. — Flowei’s capitate, racemed or spiked. Calyx campanulate or CLXXIII. VERBENACEiE. 617 tubular. Corolla-limb oblique or 2-lipped. Capsule 2-coccous. *Verlena, Bouchea, *Staahy- tarplieta, * Lippi a. Sub-tribe 5. Lantane^e. — Flowers capitate or spiked. Calyx short, membranous. Corolla- limb oblique. Drupe of 2 1-celled pyrenes. *Lantana. Sub-tribe 6. Durante.e. — Racemes lax. Calyx enlarged in fruit. Corolla campanulate or liypocrateriform. Drupe with 2-4' 2-celled pyrenes. (America.) Githarexylon, *Duranta. Sub-tribe 7. Petr.ee.®. — Racemes lax. Calyx cup-shaped, 5-toothed, with a large invo- lucriform cpicalyx. Fruit coriaceous, indeliiscent. (America.) *Petrcea. Tribe II. Vite.e. Inflorescence cymosc, definite. Ovules pendulous, amphitropous, or sub-anatropous. Sub-tribe S. Symphoreme.e. — Cymes few-floYvered, contracted, involucrate. Fruit coria- ceous, indeliiscent. (Indian twiners.) Symphorema, Congea, &c. Sub-tribe 0. Caryopteride,®. — Cymes not involucrate. Capsule at length 4<-valved. (Asia.) *Carynpteris, &c. Sub-tribe 10. Vitice.®. — C}'mes not involucrate. Drupe fleshy, rarely dry. Tectona, rremna, CaUicarpa, JEgiphila, *Volkameria, *Clerodendron, Gmelina, *Vitex, &c. Tribe III. Avicenxie.e. — Inflorescence capitate, spiked, or centripetal ; flower with im- bricate bracts. Calyx 5-leaycd. Corolla 4-fid. Ovules geminate, pendulous, amphitropous. Fruit indeliiscent ; embryo germinating in the pericarp. Avicennia. — Ed.] The affinities of Verbcnaccev with Borragineee, Labiates, and Acanthacccc have been given under those families ; they are very close to Stilbineee in the irregularity of the corolla, number of the stamens, 2- celled ovary, 1 -2-ovuled cells, erect and anatropous ovules, spiked inflorescence and whorled leaves ; but in Stilbincee the corolla is valvate, the 4 stamens are equal, the fruit dry, and the embryo is axile in the fleshy albumen. Their affinity with Mxjoporineee is indicated by the insertion, irregularity, anisostemony, and imbrication of the corolla, the didynamous stamens, 1-2-ovuled 2-celled ovary, and drupaceous or baccate fruit ; but in Mxjoporineee the ovules are pendulous, the embryo axile in the fleshy albumen, the leaves are generally alternate, the flowers axillary and usually solitary. They have the same affinity with Sclagixn sc, which besides have spiked flowers, and the diagnosis is the same ; added to which, in Selac/incce the anthers are renifonn and 1-celled, and the fruit is dry. A comparison with Glohdarieee shows the same similarities and differences, and Globxdariece are further distinguished by their dry fruit, which is a carvopsis. A close relationship is also observable between Verbenaceee and Jasmineee ; in both the corolla is hypogynous, sub-irregular, anisostemonous, and imbricate in aestivation, the ovary is 2-celled, the cells 1-2-ovuled, the ovules collateral, ascending and anatropous, the fruit is fleshy, the embryo exalbuminous or nearly so, and the leaves opposite. Verbenaceee principally inhabit tropical regions, decreasing towards the p'des; the woody species grow in the torrid zone, the herbaceous in temperate climates. They are rare in Europe, Asia, and North America. 7Y;7« nni cer contain a little volatile oil, but bitter and astringent principles predominate, and their medicinal properties are little esteemed in Europe. The Vervain ( Verbena officinalis), celebrated among the ancient Romans and the Druids of Gaul, was used in religious ceremonies and in incantations ; its slightly aromatic bitter gave it formerly a place among tonics, whence its name of officinedis. Lippia citrindora is an undershrub of South America, cultivated in Europe, the dried leaves of which are infused like ten, and also usod for flavouring cream. Many species of Lantana are also used as tea in Brazil ( I.antana pscudothea ), and their drupes are edible (L. annua and L. trifolia), as are those of Premna. The Asiatic Callicarpee have a bitter aromatic bark, and their leaves are diuretic; the American species of the same genus are of repute in the treatment of dropsy. Some other Verbenaceee are alexipharmics ( Aigiphila, Gmelina) ; Gmelina villosa is a febrifuge, G. arborca is recommended for rheumatism. Verbena crinoidcs is employed in Peru as a uterine stimulant. The Clerodendrons are trees remarkable 618 CLXXIV. GLOBULARIEiE. for the sweet scent of their flowers ; the hitter leaves and the aromatic root of many are prescribed for scrofulous and syphilitic diseases ; others [as Stachytarpha ] are used in the 'superstitious ceremonies of Indian sorcerers, as the Vervain was in Europe [its leaves are the Brazil Tea]. Vitex Agnus-castus is a shrub, indigenous to southern France, to which the ancients attributed cooling virtues, whence its name. [ V. littoralis is one of the best woods in India. Gmelina parviflora has the property of imparting mucilage to water. Teak, one of the most important timbers in the world, is the wood of Tectona grandis, a gigantic Asiatic forest tree. Avicennice are trees growing in tidal swamps throughout warm countries, called White Mangrove in Brazil, where the bark is extensively used for tanning ; a prepara- tion from the ashes of the bark is used in washing in India.] CLXXIV. GLOBULARIEIE. (Globularre, D.C. — Globularinea:, Fmdl. — Globulariace^e, Lindl.) Globularia vulgaris. Glohiilaria, Flower without calyx (mag.). Globularia. Calyx laid open, with feathery tails at the top (mag.). Globularia. Pistil (mag.). Globularia. Embryo (mag.). CLXXIV. GLOBULARIEiE. 619 Corolla monopetalous, hypogynous, 2-labiate, anisostemonous, cest ivation imbricate. Stamens 4, didynamous , inserted on the corolla. Ovary 1 -celled-, ovule solitary, pendulous, anatropous. Fruit a caryopsis. Embryo albuminous', radicle superior. — Flowers capitate. Shrubs or undershrubs, or evergreen herbs. Leaves alternate, simple, entire, aggregated at the base of the branches, the upper smallest, scattered, spathulate, contracted into a petiole, exstipulate, marcescent. Flowers 5 , irregular, capitate on a convex paleaceous receptacle, surrounded by an involucre of many series of bracts. Calyx herbaceous, monosepalous ; tube tetragonal after flowering ; throat usually closed by hairs; limb 5-fid, regular or rarely 2-lipped, the upper lip 3-fid, the lower 2-fid. Corolla monopetalous, hypogynous ; tube cylindric ; limb 1 - 2-labiate, upper lip entire or 2-lobed, or very short or obsolete, lower longer, 3-partite or -fid or -toothed, cestivation imbricate. Stamens 4, inserted at the top of the corolla-tube, alternate with its lobes, the fifth wanting between the lobes of the upper lip ; filaments filiform, exserted, the upper a little the shortest ; anthers reniform, 2-celled in bud, cells then confluent, opening at the top by a single slit. Ovary free, 1-celled, seated on a hypogynous minute disk, which is rarely reduced to an anterior gland, or absent ; style terminal, simple ; stigma undivided or shortly 2- lobed ; ovule solitaiy, pendulous, anatropous. Caryopsis enveloped by the calyx, mucronate by the persistent style-base. Seed inverted. Embryo straight, in the axis of a fleshy albumen ; cotyledons ovoid, obtuse ; radicle next the hilum, superior. GENUS. Globularia. We have indicated the affinities between Globulariea and Verhenacece , Stilbinecc, Myoporinece , and Sclaffinea, affinities which are not disturbed b)r the 1-celled and 1-ovuled ovary of Globnlariece, since the base of the style is geniculate and a little furrowed on the back, which has led A. de Candolle to suspect that the pistil is 2-carpellary, and that the posterior carpel is arrested. Some botanists have noticed a close connection between Globulariccc and Dipsacece, the latter only differing in the epigynous corolla, and the opposite or whorled leaves. Globnlariece also present some analogy with Bnmoniacccc , founded on the capitate inflorescence, hypogynous corolla, 1-celled 1-ovuled ovary, and anatropous ovule ; but in linmoniacea the corolla is regular and isostemonous, and the aestivation is valvate, the stamens are hypogynous, the anthers 2-celled, the ovule is erect, and the embryo exalbuminous. There are also some points of resemblance between Globnlariece and Calycereee ; the inflorescence is the same, the ovary is 1 -celled and 1-ovuled in both, the ovule is pendulous and anatropous, and the embryo albuminous ; but Calycereee difTer in their epigyny, the regularity, isostemony and valvate aestivation of the corolla, and in the syngenesious stamens. Globnlariece principally inhabit the south-west countries of Europe, and .are not met with farther north than 54°. Some species were formerly used medicinally ; the leaves of Globularia communis are reckoned among detergent and vulnerary medicines. The G. Alypum replaces Senna in the south of Europe, and is a very decided purge. 620 CLXXV. LABIATE. CLXXY. LABIATAE. (Veeticillat^e, L. — Labiate, A.-L. de Jussieu. — Lamiace^e, Lindl.) Lamium. Diagram. Lamium. Calyx (mag.). Lamium. Carpel, entire and cut vertically (mag.). Lamium. Stamen (mag.). Self-heal, Stamen (mag.), Lamium. Flower seen in profile. Self-heal. Calyx (mag.). Rosemary. Diagram. Sage. Stamen (mag.). CLXXY. LABIATE. 621 Germander. Pistil cut vertically (mag.). Scutellaria. Carpel cut vertically (mag.). Scutellaria . Embryo (mag.). Corolla hypogynous, monopetalous, irregular, anisostemonous , aestivation imbricate. Stamens 4 didynamous, or 2 inserted on the corolla. Ovary 4 -lobed •, ovules 4, erect, unatropons ; style gynobasic. Fruit separating into 4 aclienes . Embryo exalbu minoxis ; radicle inferior. — Stem 4 -gonous. Leaves opposite or whorled. Whole plant often covered with vesicular glands containing an odoriferous volatile oil. Stem herbaceous or sub-woody, rarely woody, usually 4-gonous. Leaves opposite or whorled, with pinnate reticulate nerves, exstipulate. Flowers ? , irregular, very rarely sub-regular [Mentha), in the axils of leaves or bracts, soli- tary or geminate, or in clustered centrifugal cymes, which form false whorls by their union in pairs, and are scattered, or crowded into spikes. Calyx persistent, of 5 connate sepals, sometimes irregular, 2-lipped, upper lip 2-fid, lower 3-fid, sometimes sub-regular with 5 segments, or 4 by the arrest of the upper. Corolla monopetalous, hypogynous; tube sometimes twisted ( Hyssopus lopliantus, Ajuga orientalis) ; limb 4-5-lobed, aestivation imbricate, sometimes 2-labiate, the upper lip entire or emargi- nate, the lower 3-lobed, sometimes 1-labiate from the upper lip being very short and deeply cleft (Ajuga), sometimes being bell- or fuunel-shaped with 4 sub-equal lobes and sub-equal stamens (Mentha). Stamens inserted on the corolla-tube, usually 4, didynamous, rarely 2 by arrest of the 2 upper ( Cunila , Lycopus, Salvia, Rosmarinus)-, anther-cells often confluent at the top, sometimes separated by a well-developed filiform connective (Salvia). Ovary free, of 2 carpels, borne on a thick disk, with 4 lobes or cells, all free or cohering in pairs ; style simple, rising from the base of the ovarian lobes, and dilating into a gynobase which lines the disk ; stigma generally bifid ; ovules solitary and erect in each cell, anatropous. Fruit of 4 achene-like h>bes or nucules, free or geminate, epicarp sometimes fleshy ( Prasium ). Seeds erect. Embryo straight, very rarely curved ( Scutellaria ), exalbuminous, or with a thin fleshy albumen ; radicle inferior. [The following is Bentham’s classification of this large order : — Tribe I. Ocimoioe.e. — Stamens declinate. *Ocimum,Mcsona,Orthusiphon, *Flcclranthus, Coleus, Hyptis, Er'urpe, * Lavandula, <&c. Tribe II. Saitreik.e. — Stamens remote, straight, spreading or connivent under the upper lip, 4 or 2 with the anther-cells contiguous. Corolla-lobes flat. *Fogostemon, FAslu.lt v/u, F. ril la, *M< ullta, Lycopus, Iii>tropogon,* Origanum,* Thymus, Micromeria, *Satureia, Calamintha, *Oard".pda, * Melissa, Hcdeoma, Spl.acelc, ifcc. 622 CLXXY. LABIATE. Tribe III. Monardes. — Stamens 2, straight or ascending. Anther-cells linear-oblong, solitary or separated by a long connective. Meriandra, * Salvia, * Rosmarinus, *Monarda, *Zizy- phora, &c. Tribe IV. Nepete.®. — Stamens 4, the posticous (upper) pair always the longest. Loph - anthus, Nepeta, *Dracocephalum, *Gedronella, &c. Tribe V. Stachyde^:. — Stamens 4, parallel and ascending under the upper lip. Nucules quite free, erect. *Prunella, * Scutellaria, Melittis, *Sideritis, Marrubium, Anisomeles, *Betonica, *Stachys, Leonurus, *Lamium, Ballota, Leuca-s, *Phlomis, &c. Tribe VI. PrasiE/E. — Stamens of Stacliydeee. Nucules fleshy, sub-connate at the base. Gomphostemma, Pliyllostegium, Stenagyne, Prasmm. Tribe VII. Prostanther*. — Nucules usually rugose, connate at the base, style persistent. Corolla- throat campanulate, lobes flat. (Australia.) *Prostanthera, Hemiandra, Microcoris, Westringia, &c. Tribe VIII. Ajugoide®. — Nucules rugose, sub-connate at the base. Stamens parallel, ascending. Upper lip of corolla minute or 2-fid with declinate lobes. *Teucrium , Ajuga, Tri- chostemma, &c. — Ed.] Labiate v. form one of the most natural groups of plants ; the characters of its members are so uniform that it may be called monotypic, as if all the species could be comprehended in a single genus, and the discrimination of its genera is hence often very difficult. For the same reason the affinities of Labiates are but few. W e have noticed their connection with Scrophularineee, Borraginece, and Acanthacece. They approach nearest to Verbenacces, which differ only in the coherence of the parts of the ovary, the terminal style, the berried or drupaceous fruit, the leaves not constantly opposite, and the absence of oleiferous vesicular glands. It is in the temperate regions of the Old World that the majority of Labiates are found ; they are not numerous beyond 50° north latitude or in the tropics, and are less frequent in the southern hemisphere ; from the arctic regions they are completely absent. A volatile oil is contained in the vesicular glands of Labiates which in some species holds in solution a solid hydrocarbon ( stearoptene ) analogous to camphor ; to the different proportions in which these sub- stances are united to bitter and astringent principles the various properties of its members are due. The purely aromatic species are condiments, stimulants, [carminatives], or cosmetics ; especially Pepper- mint [(Mentha piperita), Spearmint (M. viridis), and Pennyroyal (M. Pulegium)), Thyme ( Thymus vulgaris), Savory ( Satureia hortensis aud montana), Balm ( Melissa officinalis), Basil Thyme ( Calamintha Acinos ), Lemon Thyme ( Thymus citriodorus), [Sweet Basil (Ocymum Basilicum), Bengal Sage ( Meriandra bengalensis), Sage ( Salvia egrandijlora and officinalis), Marjoram ( Origanum Majorana, Onites, &c.), Hyssop (Hyssopus officinalis)). The powerful stimulating properties of Rosemary, utilized medicinally in Hungary water, are due to its volatile oil and stearoptene [it is also an ingredient in Eau de Cologne, and in the green pomades, having the power of encouraging the growth of hair]. When the aromatic principle is com- bined with the hitter one, they are stimulating and tonic (Marjoram, Lavender, &c.). The very strong-scented essence of Lavandula Spica (Oil of Lavender) is used as an embrocation in rheumatic affec- tions, [and as Oil of Spike by painters]. The common Lavender ( L . von), cultivated in gardens, is used to preserve linen, woollen, and furs from insects; as is Patchouly, an Indian species of Pogostemon. Teucrium, which contains gallic acid and a hitter principle, is a tonic. Scutellaria galericulata was formerly employed in tertian fevers. Ground Ivy ( Glechoma hederacea) is bitter and slightly acrid; it is used as a bechic and antiscorbutic. Marrubium, in which the hitter overcomes the aroma, is recom- mended as a tonic. Finally, Sage ( Sedvia officinalis) combines all the medicinal properties of the other Labiates, whence its stimulating, tonic, and astringent virtues, and its trivial name. [Others are Ilorehound (Marrubium vulgaris) , a popular and excellent remedy in coughs; and Lycopus cur op ecus, which yields a black dye.] CLXXVI. PLANTAGINEiE. 623 (Plantagines, Plantain, (/‘tanfarjo major.) Yonng plant. Plantain. Seed, entire and cut vertically (mag.). LittortUa lacustri ». Montreious inflorescence : £ flower solitary, pedicelled ; 9 nnmerotis, sessile, at the base of the pednncle. CLXXVI. PLANTAGINES. Jussieu. — Plantagine/E, Br. — Plantaginace^e, Lindl.) Plantain. Flower (mag.). Plantain. Transverse section of ovary (mag.). Plantain. Pistil (mag.). LittortUa . £ flower after expansion, LittortUa. with long iiendent filaments j flower cut vertically deprived of their anthers (mag.). (mag.). Plantain. Spike. Plantain. Fruit dehiscing (mag.). Littorella . J flower, nat ural size. 624 CLXXYI. PLANTAGINEiE. Young ovary cut Liltorella. vertically to show Littorella. Young ovule with the the conducting Pistil (mag.), conducting tissue (mag.). tissue (mag.). Littorella. Germinating seed further advanced (mag.). Littorella. Littorella. Embryo Transverse section (mag.). of fruit (mag.). Liltorella. Fruit cut vertically (mag.). Corolla monopetalous , hypogynous, generally isostemonous, aestivation imbricate. Stamens 4 ( rarely 1), inserted on the corolla, or hypogynous. Ovary 1-4 -celled-, ovules peltate. Fruit a capsule or nucule. Seeds fixed by a ventral liilum. Embryo parallel to the liilum, albuminous, straight or curved. Annual or perennial herbs ; rhizome subterranean, sometimes stoloniferous, giving off scapigerous peduncles, or leafy rarely woody stems. Leaves all radical in most species, or rosulate, alternate, or opposite {Psyllium), simple, flat, nerved, entire, tootbed, or pinnatifid [Psyllium), or semi-cylindric, sessile and fleshy, or contracted into a petiole dilated at its base, and accompanied by a woolly membrane. Peduncles always springing from the axils of the lower leaves. Flowers usually g , spicate and spiked, bracteate, or rarely diclinous ; the $ solitary, scapose ; the $ crowded, sessile at the base of the scape. 1. Flowers $ ( Plantain ) : Calyx ? herbaceous, 4-partite, persistent; anterior sepals distinct or cohering, imbricate, usually keel-sliaped, edges membranous. Corolla ? hypogynous, monopetalous, tubular, scarious, marcescent, with 4 imbri- cate lobes. Stamens 4, inserted on the corolla-tube and alternate with its lobes, exserted or sometimes included and imperfect ; filaments filiform, flaccid, indexed before flowering ; anthers versatile, apiculate, cells parallel, dehiscence longitudinal, introrse, deciduous. Ovary free, 2-4-celled ; style filiform, exserted erect, or included, with 2 longitudinal lines of stigmatic papillse ; ovules 1-8 in each cell, peltate on the middle of the septum of the many-ovuled cells, or at the bottom of the 1-ovuled cells. Capsule circumsciss, sub-membranous, 1-4-celled, 1-many-seeded, edges of septum free, surfaces seminiferous. Seeds peltate ; testa mucilaginous. Embryo parallel to the hilum, straight, cylindric, in the axis of a fleshy albumen ; cotyledons oblong or linear; radicle distant from the hilum, inferior, rarely centrifugal. 2. Flowers monoecious ( Littorella ) or polygamous ( Bougueria ). — $ : Calyx 4-partite, with membranous edges ( Littorella ), or with 4 sub-equal hairy sepals (Bougueria) . Corolla tubular, scarious, with 4 equal lobes (Littorella) , or irregularly CLXXVII. NYCTAGINE2E. G25 3-4-lobed, with silky edges (Bougneria). Stamens 4, hypogynous and alternate with the corolla-lobes ( Littorella ), or 1-2, inserted on tlie middle of the corolla-tube ( Bougueria ). Ovary rudimentary ( Littorella ), or obsolete ( Bougueria ). — $ : Calyx with 3 unequal sepals (bracts ?), the anterior larger ( Littorella ), or of 4 sub-equal hairy sepals (Bougueria). Corolla urceolate; throat short; limb 3-4-toothed ( Ditto - rclla ) or tubular, irregularly 3-4-lobed, with silky edges ( Bougueria ). Stamens 0. Ovary 1 -celled ; ovule solitary, campylotropous. Xucule bony. Seed peltate, testa membranous. Embryo straight, in the axis of a fleshy albumen ( Littorella, ), or curved round the albumen ( Bougueria .). GENERA. Plantago. Littorella. Bougueria. Plantagineer , although very different in appearance, form a very homogeneous group; they approach Plumbaginea in their inflorescence, hypogynous generally isostenionous corolla, and the stamens some- times hypogynous, sometimes inserted on the corolla, as in Statice and Plumbago , and finally in their dry fruit and albuminous embryo. Plumbaginea are separated from Plantago by their 1-celled and 1- ov uled ovary, from Plant ago and Littorella by their many styles, anatropous ovule pendulous from a basal ascending funicle, and farinaceous albumen. Plantayinca are allied rather closely with Primulacea by the direction of the ovules, the circumsciss capsule, the ventral hilum, and the embryo parallel to the liiluni, as also with Veronica-, another analogy results from the isolation of the placentiferous septum in Plantago, which, although only occurring at maturity, recalls the placentation of Primulacea. As to the different position of the stamens, opposite to the corolla-lobes in Plantuginece and alternate with them in Primulacea, this is of no account, if it be admitted (with certain authors) that in Plantaginem the scarious and persistent corolla is a calyx, and the calyx an involucel ; in this case the Plantains would be apetalous, ns in Gtaux, and the stamens would alternate with the sepals. There is yet another aflinity which deserves to be noticed ; it is founded on the alternation of the stamens with the calyx, an alternation which exists, if we admit, with Grisebach, that both these families are apetalous, and regard the corolla of Plumbaginea as a staminal crown, and that of Plantaginea as a true calyx. Plantagineee inhabit the temperate regions of both hemispheres, but principally the northern, and especially Europe and America ; they are more rare in the tropics, where they only grow on mountains. Many indigenous species of Plantain ( Plantago lanceolata, major , media) are employed in medicine ; their leaves are bitter and slightly astringent. An eye-water is distilled from the whole plant. The seeds of Plantago Psyllium, arenaria and Bophula contain an abundant mucilage in their testa, whence their use as emollients in inflammatory ophthalmia ; and in Indian manufactures to stiffen muslins. Plantago Corunojms was considered by the ancients, on account of its toothed leaves, to be efficacious against hydrophobia, and was ranked amongst diuretics. It is cultivated for salad in some countries. CLXXVII. NYCTA G1NEJE, Jussieu. Flowers $ or diclinous. Perianth petaloid or coloured. Stamens hypogynous. Ovary l-cclhd , \-ovuled ; ovule campylotropous, erect. Achene included m the per- sistent has. of the perianth. Albumen farinaceous ( rarely 0). Embryo curved, rarelg straight; RADICLE inferior. Trees, shrubs or herbs. Stems knotty, fragile, branches often spinescent. Leaves usually opposite (that subtending a branch, peduncle or spine being smaller than its pair), rarely alternate, or scattered, petioled, entire. Flowers 5, or rarely s s 626 CLXXVII. NYCTAGrINEiE, Flower cut vertically Vieillardia. Seed cut transversely (mag.). Mirdbilis Jalapa. Mirdbilis. Fruit, entire and with vertical and transverse sec- tions (mag.). Buginvillea. Diagram of the base of the flower. Buginvillea. Andrcecium and pistil (mag.). Buginvillea spectabiUs. Mirdbilis. Flower cut vertically. CLXXVII. XYCTAGINEA3. G27 MiiabtUs. Diagram. Mirabi/is. Amlroecium. Pisonia. Fruit. Pisonia acuteaia. Fruit out transversely (mag.). diclinous [Pisonia), axillary or terminal, solitary or aggregated, rarely in a simple spike, umbel, cyme or panicle ; floral bracts 6, sometimes ovate or lanceolate, free or united, often forming a calyciform much dilated coloured involucre larger than the flowers ; sometimes 1-3, minute ; involucre calyciform, herbaceous, sometimes monophyllous, 3-5-toothed, 1-5-flowered, and often enlarged after flowering ; some- times polyphyllous, many-flowered. Perianth petaloid, tubular or tubular-cam- panulate or infundibuliform, variously coloured ; the lower part of the tube hardest, sometimes striate, always persistent, enveloping the fruit and accrescent, the upper part resembling a corolla; limb membranous, folded in aestivation, rarely marcescent, usually falling after flowering. Stamens liypogynous, fewer or more than the divisions of the perianth, 8-30, rarely equal in number, sometimes unilateral; fila- ments filiform, often unequal, included or exserted, inflexed in aestivation, free, or coherent at the base, sometimes even adnate below to the perianth-tube ; anthers inti-or.se, 2-eelled, globose, dehiscence longitudinal ; pollen of globose large granules. Ovary free, sessile or sub-stipitate, 1-carpelled, 1-celled ; style terminal or sub-lateral, simple, involute in aestivation ; stigma simple, pointed or globose, straight or coiled, sometimes branched or penicillate, multifid ; ovule solitary, erect, sessile, micropyle inferior. Achene membranous, included in the hardened tube of the perianth. Seed erect, testa adherent to the endocarp. Embryo usually curved or folded, rarely straight ( Pisonia ) ; cotyledons foliaceous, enveloping a farinaceous albumen, or coiled upon themselves, and scarcely separated by a mucilaginous albumen (Vieillardia) ; radicle inferior. [The following is Choisy’s arrangement of the genera in De Candolle’s * Prodromus ’ : — Tniiu: I. MlRARlLEJE. — Involucre calyciform, 1- or many-leaved. *Mirabilis, Quamoclidion , *0.njb(i2dius, Abronia , Acleisanthes, Pentacrojdiys, Ac. Trirf, II. Bcgixvii.lej:. — Involucre bract-like ; bracts large, dilated. *Buginvillea [Bougainvillea), Tncycla, ? Ceplialotomandra. Trirf. III. Boeriiaaviee. Salpianthus, Pisonia, Keen, Vieillardia, Boerhaavia. — Ed.] 8 s 2 628 CLXXVIII. PHYTOLACCEiE. Nyctaginece are not closely allied to any other family ; they have been placed near Fhytolaccecc, Clienopodiece , and Folygone a on account of the structure of their ovary, their curved seed and albumen ; but they differ in their folded aestivation and exstipulate leaves. They have an apparent affinity with Valerianece (as observed by A.-L. de Jussieu), through Boerhaavia, several species of which have been often confounded with that family. Nyctciginece principally inhabit the tropical regions of the Old, and especially the New World. Abronia grows in North-west America, some Boerhaavia in extra-tropical Australia, and iu South America. Buginvillea is limited to South America. The roots of Nyctaginece are purgative or emetic. That of the false Jalap, or Marvel of Peru ( Mira - bilis Jalapa), a tropical American plant, was long confounded with that of the true Jalap, of which it has the nauseous smell. It possesses similar qualities, hut is much less efficacious, and is sometimes administered for dropsy, as are M. dichotoma and longiftora ; all are cultivated in our gardens. M. suaveolens is recommended in Mexico for diarrhoea aud rheumatic pains. The numerous species of Boerhaavia furnish the Americans with emetic and purgative roots. The juice of B. hirsuta is used in Brazil as a remedy for jaundice. The cooked root of B. tuberosa is eaten in Peru ; an infusion of it is ranked as an antisyphilitic. A decoction of the herbage of B. procumbens is an Iudiau febrifuge. The properties of Pisonia are analogous to those of Boerhaavia. CLXXVIII. PI1 YTOLA CCEJE. (Atriplicum sectio, Jussieu. — Phytolacce^e, Br. — Rivineae et Petivereje, Agardh. — Phytolaccace^e et Petiveriace^e, Lindl. — Phytolaccace^e, JEndl.) Calyx 4-5 -partite. Corolla usually 0. Stamens suh-hypogynous or hypogy- nous, as many as the sepals, or more numerous. Carpels several, whorled, or one ex- centric, 1-ovuled; styles lateral and ventral, hoohed. Fruit fleshy or dry. Seed erect. Albumen farinaceous, sometimes scan ty or 0. Embryo annular or curved, rarely straight ; RADICLE inferior. Herbs or undershrubs [rarely trees], usually glabrous. Stems cylindric, or irregularly annular, rarely twining ( Ercilla ). Leaves alternate or rarely sub-oppo- site, simple, entire, membranous or somewhat fleshy, sometimes pellucid-punctate ; stipules 0, or geminate at the base of the petioles, free, deciduous, or changed into persistent thorns. Flowers 5 or rarely dioecious (Achatocarpus, Gyrostemon), regular or sub-regular, in a spike, raceme, or glomerate cyme, axillary, terminal or leaf-opposed, pedicels naked or 1-3-bracteate. Calyx 4-5-partite ; lobes herbaceous, often membranous at the edge, frequently coloured on their inner surface, equal or unequal, aestivation imbricate. Corolla usually 0, rarely of 4-5 petals ( Semonvillea , &c.) alternate with the sepals and inserted at their base, distinct, with narrow claws. Stamens sub-hypogynous or hypogynous, inserted at the base of a disk lining the bottom of the calyx, or of a somewhat convex torus, or sometimes of a slender gynophore ; either equal and alternate with the sepals, or more numerous, the outer alternate, the inner opposite ; rarely united in alternate bundles ; more rarely indefinite and arranged without order ; filaments filiform or dilated at the base, distinct, or connate below ; anthers introrse, 2-celled, basifixed or dorsifixed, erect or incumbent, dehiscence longitudinal. Carpels several whorled, rarely CLXXVIII. PHYTOLACCEiE. 629 Phytolacca dccandra. Phytolacca. Flower cut vertically (mag.)* Phytolacca . Diagram. Phytolacca. Seed, entire and cut vertically (mag.). Oyroslemon. Carpel. Phytolacca. Fruit. Semonvillea. Fruit. Oyrostemon. Fruit. eguieria. Fruit. Achatocarpus. Achatocarpus. £ Bower. 5 flower (mag.). Achatocarpus. Pistil cut vertically (mag.). Achatocarpus. Fruit cut vertically. solitary and sub-excentric, distinct or more or less coherent, seated on an incon- spicuous '^ynophore, or fixed to a central column, 1 -celled; styles ventral, distinct or rarelv coherent at the base, tips recurved and stigmatiferous on their inner surface ; amis usually solitary, basifixed, campylotropous or rarely semi-anatropous. Fruit a berrv, utricle, coccus, nut or samara. Seed erect ; testa membranous or crusta- ceous, usually shining and fragile. Embryo sometimes annular or arched, peri- pheric, surrounding a copious floury albumen with flat large or narrow and unequal cotyledons, the edges of the outer closing round the inner ; sometimes straight, with foliaceous convolute cotyledons and little or no albumen ; radicle inferior. 630 CLXXVIII. PHYTOLACCEiE. Tribe I. PETIVERIEA V. Carpel solitary, becoming a samara or acliene. Embryo curved ( Seguieria ) or straight ( Petiveria ), cotyledons convolute. Leaves stipulate. Seguieria. PRINCIPAL GENERA. Petiveria. Rivina. Mohlana. Tribe II. PHTTOLACCE M. Fruit usually composed of 2 or more carpels, distinct or coherent, but without a column. Leaves exstipulate. PBINCIPAL GENERA. Microtea. Limeum. Giesec-kia. Phytolacca. Semonvillea. Anisomeria. Pircunia. Ercilla. * Rivina. Achatocarpus. Tribe III. GYROS TEMONEJE. Fruit compound, with a central column, resembling a 1 -celled or 2-several- celled capsule. Cotyledons not rolled. Leaves exstipulate. Didymotheca. GENERA. Gyrostemon. Codonocarpus. Tersonia. Phytolacceee , long confounded with Chenopodieee, are connected with them hy their alternate leaves, inflorescence, 1-ovuled carpels, farinaceous albumen and usually peripheric embryo ; they are sufficiently distinguished by their frequently having petals, by the number and position of their stamens, their lateral style, plurality of carpels, and berried or coccus-like pericarp. They approach Baselleee and Amarantacece in the coloured calyx and the structure of the seed ; Portulaceee in the alternate leaves, the stamens alter- nating with the sepals when they are the same in number, and the structure of the flower and seed. Seguieria, the cotyledons of which are coiled, and the albumen 0 or nearly so, and Gyrostemon, the carpels of which are whorled around a central column, establish a certain affinity between Phytolacceee and Malvaceee. Phytolacceee inhabit the tropical and sub-tropical regions of the Old, and especially of the New World ; they are much rarer in Asia than in Africa. Petiverieee are all tropical American. Phytolacceee, properly so called, mostly belong to the Old World. Gyrostemoneee are all Australian. Phytolacceee owe their properties to acrid, vesicant, and drastic substances. Phytolacca decandra (Pokeweed or American Currant), a native of North America, has been naturalized in the Landes ; its acrid leaves, its root and unripe berries are a strong purgative. Its ripe berries contain a purple juice which is by no means innocuous, and which is imprudently used to colour confectionery and wine, for which reason the Portuguese Government has forbidden its culture. Nevertheless the young leaves of this species and of its congeners (P. esculenta, &c.), are edible when cooked. P. drastica grows among rocks in Chili, and the natives chew its root as a purgative. Some Phytolacceee blacken in drying {Bosia, Achatocarpus). Petiverieee, remarkable for their alliaceous smell, are used in domestic medicine by Americans, as antifebrile, diaphoretic, diuretic, and vermifuge. [The berries of Phytolacca octandra are used as soap in the West Indies. Pircunia clioica, a tree of La riata, is now extensively cultivated in the south of Spain as Bella-sombra, and is a conspicuous feature in the gardens at Gibraltar, where its trunks, enormously swollen at the base, attract universal attention ; the tree is of most rapid growth, but the wood is very spongy. The young shoots and leaves of Phytolacca clioica are recommended for cultivation as a potherb, being eaten, cooked like asparagus, in the United States, as are those of P. acinosa in the Himalayas. The turnip-shaped root of P. drastica is a violent drastic purge, — Ed.] CLXXTX. POLYGONEJE. 031 CLXXIX. POLYGONEsE. (PersicarI/E, Adanson. — Polygone^e, Jussieu. — Polygonace^e, Lind/.) Numejc critpus . Rhubarb. Flower (mag.). Riimer. Fruit, entire and cut vertically (magi). Fagopyrum. Flower (mag.). Rhnliarh. Pistil (mag.). Rhnbnrb. Diagram. Fagopyrum. Fagopyrum. Fruit (mag.). Stamen imag.). 632 CLXXIX. POLYGONEiE. Eriogonum. Muhlenbeckia. Inflorescence. Fruit and accrescent calyx (mag.)* Koenig ia. Flower- bud (mag.). Koenig ia. Monandrous flower iaid open (mag.). Flowers $ or diclinous. Perianth herbaceous or petaloid. Stamens peri- gynous. Ovary 1 -celled, 1-ovuled ; ovule erect, orthotropous. Fruit an achene. Seed erect ; albumen farinaceous. Embryo straight, curved and lateral, or straight and axile ; radicle superior. — Leaves alternate, with an intrapetiolar stipule. Herbaceous or frutescent plants, sometimes arborescent, erect [or prostrate] or twining, stem and branches jointed and knotty, leafy, rarely aphyllous and scapige- l’ous. Leaves alternate, often collected at the base of the stem, very rarely opposite (. Pterostegia ), simple, entire, waved, crisped or crenulate, very rarely cut, usually penninerved, margins revolute when young, often glandular or pellucid-dotted ; petiole dilated at the base and amplexicaul, or inserted on a close-sheathing intra- petiolar stipule ( ochrea ), sometimes inconspicuous. Flowers 5 or diclinous, springing from the axil of the leaves or bracts (sometimes ochreiform), solitary or whorled, racemed spiked panicled or cymose, sometimes capitate, either naked, or enclosed singly or collectively in a tubular or cyathiform involucre; pedicels filiform (sometimes 0), usually jointed, often cernuous in fruit. Perianth calycine or petaline, of 3-4-5-G sepals, distinct, or coherent at the base, rarely united in a tube, usually persistent and accrescent; sepals or segments sometimes 3, 1-seriate ; sometimes 5, imbricate ; sometimes 4 or 6, 2-seriate, imbricate or sub-valvate, equal or unequal, and in the latter the outer 2 or 3 herbaceous, rarely coloured, smaller or larger than the inner, usually concave or keeled, sometimes winged or spiny ; the inner 2 or 3 petaloid (rarely herbaceous), plane, or concave and folded, entire, toothed, fringed, or spiny at the margins, usually becoming membranous-scarious when ripe, with netted veins, median nerve sometimes swollen and callous. Stamens perigynous, 1-15, usually 6-8-9, very rarely 00 , inserted on a disk or glandular ring lining the base of the perianth, opposite or rarely alternate with the sepals, usually in twos or threes before the outer, solitary before the inner -, filaments capillary or subulate, distinct, or very shortly coherent by their dilated bases ; anthers 2-celled, dehiscence longitudinal, ovoid or oblong, dorsifixed and versatile, or rarely basifixed and erect, all introrse, or the 5 outer introrse and 3 inner extrorse, or all opening laterally. Ovary solitary, of 2-4 carpels valvately united, free or rarely adherent by the base, ovoid or elliptic, compressed or 3-gonous, 1 -celled or rarely incompletely 3-celled by false septa; styles 2-4, answering to the angles of the CLXXIX. POLYGONEiE. G33 ovary, distinct, or more or less united, very rarely adherent to the angles of the ovary ; stiymas simple, capitate or discoid, sometimes feathery or penicillate ; ovule solitary, basilar, orthotropous, erect, rarely pendulous from a basal funicle, with the micro- pyle downwards, but always erect when ripe. Achene or caryopsis compressed- lenticular, 3-4-gonous, with projecting or obtuse angles, sometimes winged, entire, toothed, or spiny, rarely naked, usually covered by the accrescent and sometimes fleshy perianth. Seed conformable to the cell, erect, free or adnate to the endocarp ; testa membranous; hilum basilar, large; albumen copious, farinaceous, rarely sub- fleshy and scanty. Embryo antitropous, curved and appressed to the side of the albumen, or straight and axile in the albumen ; cotyledons linear or oval, incumbent or accumbent, sometimes largely foliaceous, flexuous ; radicle superior. Tribe I. ERIOGONEJE. Flowers 5 , or rarely polygamous, within a 1- or more-flowered tubular invo- lucre. Calyx 6-partite. Stamens 9. Ovary free ; ovule basilar, erect. Embryo included in a scanty albumen. — Ochreas obsolete. PRINCIPAL GENERA. Eriogonum. Oxytheca. Nemacaulis. Chorizantha. Pterostegia. Tribe II. FOLYGONEvE VERM. Flowers ? or polygamous ; involucre 0. Stamens 1 9, usually 6 or 8, rarely 12-17. Ovary free or rarely adherent below ; ovule basilar, erect. — Stipules ochreate. PRINCIPAL GENERA. Calligonum. Emex. Muhlenbeckia. * Rheum. * Rumex. * Coccoloba. Fagopyrum. Oxyria. * Atrapbaxis. Triplaris. Oxygon um. * Polygonum. Ruprechtia. Tribe III. BR TJNNICUIE2E. Flowers?; involucre 0. Calyx 5-partite. Stamens 8. Ovary free, 3-gonous; ovule pendulous from a basal funicle, erect when ripe. — Ochreas 0 or obsolete. Stems usually woody, climbing, furnished with tendrils. GENERA. Antigonuni. Brunnichia. Tribe IV. SYMMERIEM. Flowers dioecious, polyandrous. Calyx of ? 6-partite. Ovary adherent. — Ochreas 0. PRINCIPAL GENUS. Symmeria. 634 CLXX1X. P0LYG0NEJ3. Polygonece are clearly separated from all tlie Cyclospermece with farinaceous albumen by their ortho- tropous ovule and antitropous embryo. They are further distinguished from Chenopodece and Amaran- tacece by their ternary floral whorls, the often coloured perianth, and the prevalence of the ochrea. The tribe of Eriogonece, the flowers of which have an involucre, approach nearer to Pliytolaccece, but are separated by the superior radicle. Polygonece are also connected with Caryopliyllece through Paronychiece , and have also some affinity with Plumbaginecs (which see). Polygonece mostly inhabit the north temperate hemisphere ; they are less frequent in the tropics. They are frutescent or arborescent in Central America, and become rare south of the tropic of Capricorn. The tribe of Eriogonece is principally North American and Chilian, Ti runnichia inhabits Carolina, and Antigonilm Mexico. The Rhubarbs ( Rheum ) grow on the mountains of Central Asia and North India. The woody genera Calligonum and Atraphaxis ( Tragopyrum ), grow in the plains of Central Asia. Coccolobct, Triplciris, &c., are large trees of tropical America; Kcenigia, a minute herb [and Oxyria], are sub-arctic and arctic. The numerous species of Polygonum and Hitmex are scattered every- where, from the sea-shore to the snow-line. [ Muhlenbecliia is Australian, Symmeria and Ruprechtia Brazilian.] The properties of the genera of Polygonece sustain their affinities. Their herbage contains oxalic, citric, and malic acids, and is edible or medicinal. The seeds of some abound in starch, the root of most contains astringent matters, sometimes combined with a resinous principle to which they owe medicinal properties that have been recognized from the highest antiquity; the most important of these is Rhubarb, which is distinguished from all other purgatives by its restorative action on the functions of the stomach ; it is further an antidysenteric and vermifuge. The botanical history of the Rhubarb 1 is obscure; in the tenth century the Arabs received it from the Chinese, and spread it through Europe, but the Chinese only vaguely indicated its habitat, and botanists have long doubted to what species it belongs. The root of Pheuin australe, a Himalayan species cultivated at Calcutta, has the decided smell and bitter- tonic taste of the roots the Chinese sell to the Russians, and like it it grates under the teeth ; added to which, the form of its leaves agrees with the description which the natives of Bokhara gave of the true Rhubarb to the illustrious naturalist Pallas. Rheum Rhaponticum, the species originally known to the ancients as Rhn, grows wild in ancient Thrace and on the shores of the Euxine; it was called later Rha-ponticum, to distinguish it from the Scythian Rhubarb, which they called Rha-hnrharum, whence our name of Rhubarb. In Europe, and especially in Germany and England, several varieties of R. Rhaponticum and R. undulatum are cultivated on account of the pleasant acid taste of their leaves, the petiole and principal nerves of which are used in tarts and preserves. [The root of the former furnishes the English medicinal Rhubarb, and is extensively grown, both as a substitute for the Oriental, and also to adulterate it.- — Ed.] Rumex is divided into two distinct groups : the one the Sorrels ( 11. Acetosa, scutatm, & c.), containing oxalate of potash in the stem and leaves, whence their acid taste and their use as food and their laxative properties ; their root is red and scentless. The others, the Docks (R. patientia , crispus, aquations, &c.), have yellow and scented bitter roots containing sulphur, which are used as depuratives and anti- scorbutics. Some indigenous Polygona (P. Bistorta, Hydropiper, Persicaria, avicidcire, amphibimn ), were formerly used medicinally, but all have fallen into disuse except the Bistort (P. Bistorta),. the twisted root of which is an astringent tonic. P. stypticum is in great repute in Brazil on account of the astringent properties of the herbage and root. The natives of Colombia employ a decoction of P. tamnifolium for haemorrhage. P. perfoliatum is outwardly applied in Cochin China for tumours and skin diseases. P. cocliinchinense, administered as a topic and a drink, is considered to be an efficacious remedy for swellings of the knee, a common and obstinate disease in Cochin China. The tuberous root of P. multijlorum is a reputed cordial in Japan. P. hcemorrhoiclale contains an acrid principle, and is used by the Brazilians as a condiment, and as a topical application, or in baths, for rheumatic pains. Buckwheat ( Fogopyrum esculentum), or Black "Wheat, is valuable for the abundant and excellent 1 Within the last two years the true Rhubarb plant has been introduced into France by the Chinese missionaries in East Tibet, and named R. officinale, BaiUon. — En. CLXXX. AMARANTACE2E. 635 farina of its seed, which is a substitute for that of the cereals. It is a native of North Asia, grows in the poorest soil, requires little care in cultivation, ripens quickly, and is now extensively grown in the most sterile countries of Europe ; it is also used for feeding fowls, and bees find a copious supply of honey in its flowers. Another species of Buckwheat (P. tataricum) is cultivated with the preceding ; it is hardier, and succeeds on high mountains, but its farina is slightly bitter. The leaves of certain l’olygonums yield a dye-stuff ; as P. tinctorium , cultivated from time immemorial in China for the extraction of a blue dyeing substance identical with indigo ; its cultivation was introduced into France in 1834. Coccoloba uvifera, the Seaside Grape, is a West Indian and South American littoral shrub, whose inspissated juice, called American Kino and False Rhatany, is a strong astringent. Cctlligonum Pallasia is a small leafless tree, growing in the sands of South Siberia, whose cooked root yields a gum and mucilage, which the Kalmucks eat to stay their hunger ; they also appease their thirst with its young shoots and acidulous fruits. [Some Polygonums (as P. Ilydropiper ) are so acrid as to blister the skin. Itume.v alpiims, or Monk’s Rhubarb, a European species, was formerly in great repute. It. scutatus is still much cultivated as a Sorrel. The leaves of O.vyria reniformis are a most grateful acid. — Ed.] CLXXX. AMARANTACEsE. (Amaranti, Jussieu. — Amarantoide.-e, Ventenat. — Amarantacea:, Br.) Herbaceous or suffruticose plants, sometimes frutescent, glabrous, pubescent or woolly. Stem and branches often diffuse, cylindric or sub-angular, continuous or jointed, erect or ascending, sometimes twining ( Hablitzia ). Leaves opposite or alternate, simple, sessile or shortly petioled, membranous or a little fleshy, usually entire ; stipules 0. Flowers small, regular or sub-regular, 3 or diclinous, sessile, solitary or in glomerules beads or spikes, the lateral ones sometimes arrested or developed into crests awns or booked hairs ; bracts 3, rarely 2, usually contiguous, the lowest largest, usually persistent, rarely leafy, tbe lateral very often keeled, concave, never leafy, scarious, deciduous with tbe flower. Calyx of 3-5 sepals, or very rarely 1 (Menyea), distinct or sometimes more or less coherent at tbe base, equal or sub-equal, sub-scarious, glabrous or furnished with accrescent wool, petaloid or greenish, persistent, aestivation, imbricate. Corolla 0. Stamens hypogynous, 5 fertile, opposite to tbe sepals (rarely 3 or fewer), with or without alternating staminodes, all free, or united below in a cup or tube ; filaments filiform, subulate or dilated, sometimes 3-fid ; staminodes entire or fringed, flat or rarely concave, sometimes very small and tooth-shaped, or lobulate ; anthers introrse, 1 -2-celled, erect, ovoid or linear, dorsifixed, dehiscence longitudinal. Ovary free, compressed, rarely depressed, 1-carpclled, 1-celled ; style terminal, simple, various in length, sometimes obsolete ; stigma capitate, einarginate, 2-lobed or 2-3-fid; ovules 1 or more, curved, basal, or suspended singly from separate erect funicles ; micropyle inferior. Fruit usually enveloped in the calyx, sometimes a membranous 2- or more-seeded utricle, or rupturing irregularly or circumsciss, or a caryopsis, rarely a berry. Seeds usually somewhat compressed, reniform, vertical ; testa crustaceous, 636 CLXXX. AMARANTACEiE. Amarantus reflexus. A marantus. 5 flower (mag.). Amarantus. Q flower cut vertically (mag.). Gomphrena. Staminal tube (mag.). Gomphrena. Pistil (mag.). Amarantus. Seed, entire and cut vertically (mag.). black, shining ; endopleura membranous ; liilum naked, or rarely arillate ; albumen abundant, central, farinaceous. Embryo peripheric, annular or curved; cotyledons incumbent ; radicle near the liilum, inferior, sub-ascending. CLXXXI. CHEN0P0DE2E. G37 Tribe I. CEL08IEJE. Anthers 2-celletl. Ovary many-ovuled. PRINCIPAL GENERA. Deeringia. * Celosia. Hermbstsedtia. Tribe IT. ACHYRANTIIE2E. Anthers 2-celled. Ovary 1-ovuled. Chamissoa. Digera. Trichinium. PRINCIPAL * Amarantus. Aerva. Pupalia. GENERA. Euxolus. Achyranthes. Polycnemum. Psilotrichum. Cyathula. Tribe III. GOMRIIRENEjE. Anthers 1-celletl. Ovary 1-ovuled. PRINCIPAL GENERA. * Iresine. Alternantbera. Telantliera. * Gomphrena. Frcelicbia. Amarantaeefc in tlieir embryo and farinaceous albumen aro near Chenopodece, Basellece, Bhytolaccecv , and Baronychicw. Their affinity with Chenopodece is so close (the latter only differing in their distinct styles and herbaceous calyx) that it is difficult to draw a clear diagnosis between them, although they are widely separated by habit. Ba^cUets differ in habit, perigynous stamens, usually cubical pollen, &c. ; Phytolaccea >, in their whorled ovaries borne on a gynophore ; Paronychiece, in their scale-like petals, perigynous stamens, scarious stipules, Ac. Amarantacea are mostly tropical, but are not rare in sub-tropical regions ; very few are met with in the [north' temperate zone, and they are absolutely wanting in cold countries. [Many are Australian.] Various Amurantacece contain mucilage and sugar, and are hence alimentary and emollient ; some are slightly astringent, other diaphoretic and diuretic, or tonic and stimulating. Amarantus Blitum is eaten ns a spinach in the south of Europe, as are other species in China and India, where the natives abstain from nnimnl food. Gomphrena ylobosa, Celosia argentea and margaritacea, Aerva lanata, &c., are used as resolvents. The flowers of Celosia cristata (Cockscomb) are astringent, and prescribed in Asia for diarrhoea, menorrhagia, vomiting of blood, Ac. The tuberous roots of Gomphrena officinalis and macro- tephala, from Brazil, are tonic and stimulating, and are hence regarded as a panacea, and under the name of paratudo they are a reputed remedy for weakness of the stomach and intestines, and are especially used as a febrifuge. Amarantus frumentaceus and Anordana are cultivated in the Himalayas on account of their edible seeds. CLXXXI. CHENOPODECE. (Atriplices, Jussieu. — Chenopodece, Br. — Chenopodie.e, Bartling. — Chenopo- diace.e, Lincll. — SalsolacezE, Moquin-Tandon.) Flowers 5 or diclinous. Perianth herbaceous, regular, 5-3-2-phyllous, persis- tent. Stamens sub-perigynous or liypogynous, equal and opposite to the sepals, or fewer. Ovary 1 -celled, 1-ovuled’, ovule curved. Embryo annular or semi-annular, or spirally coiled. Albumen usually farinaceous, sometimes 0. C38 CLXXXI. CHENOPODEiE. Chenopodium viride . Beta. Beta vulgaris. Diagram. Fruits (mag.). Chenopodium. Flower (mag.). Chenopodium. Fruit (mag.) Chenopodium. p(fa Seed cut (mag.). Seed (mag.). Beta vulgaris. Flower cut vertically (mag.). Herbaceous, suffrutescent, or rarely frutescent plants, glabrous, pubescent or woody. Stems cylindric or angular, erect or ascending, continuous and leafy, or articulate and often aphyllous. Leaves alternate, rarely opposite, simple, sessile or petioled, usually flat, entire, toothed, sinuate or cut, sometimes fleshy, semi-cylindric or cylindric ; stipules 0. Flowers 5 , small, regular, often dimorphous (Atriplex) ; sometimes diclinous, or polygamous, sessile or pedicelled, solitary or variously CLXXXI. CHEN0P0DE2E. G39 agglomerated, axillary or terminal, bracteate and 2-bracteolate or naked. Calyx of 5, 3, 2 sepals (rarely 4), more or less coherent at their base, herbaceous, greenish, imbricate in aestivation, sometimes becoming fleshy and bacciform after flowering, or dry and capsular. Corolla 0. Stamens usually hypogynous, or at the bottom of the calyx, 5, or rarely fewer by arrest, all fertile and opposite to the sepals ; fila- ment* filiform or subulate, usually free, sometimes shortly united into a cup ; stami- noiles (in some genera) very small, placed between the filaments ( Anabasis , &c.) ; anthers 2-celled, ovoid or oblong, introrse, dehiscence longitudinal, connective some- times vesicular above the cells ( Physogeton ). Ovary ovoid, or depressed-globose, usually free, very rarely adherent by the base, 1-celled; stigmas 2-4, distinct, or coherent at the base ; ovule campylotropous, sessile at the bottom of the cell, or fixed laterally, or pendulous to a short funicle, micropyle facing the base, circum- ference or top of the ovary. Fruit a utricle or caryopsis, or rarely a berry, included in the variously modified or unchanged calyx. Seed horizontal or vertical, erect or inverted, lenticular or reniform, integument double, of a crustaceous testa and mem- branous emlopleura, or simple and membranous ; albumen copious or scanty or 0 ( Anabasis , Salsola, &c.), usually farinaceous, very rarely sub-flesliy. Embryo curved or annular, and surrounding the albumen, or coiled into a flat spiral, and dividing the albumen into 2 parts, or exalbum inous, and forming a conical spiral ( Salsola ) ; radicle facing the liilum ; cofglcdons plano-convex, slender. [The following is Moquin-Tandon’s classification in De Candolle’s ‘Prodromus ’ : — Sub-order I. CycLOLOBEiR. — Embryo annular or horse shoe-shaped, surrounding the albumen. Tribe I. Ciienopode*. — Inflorescence normal. Flowers usually $ , liomomorplious. Seed usually free, integument double. — Stem not jointed. Leaves membranous, more or less rhomboid, llhagodia, *Jleta, * Clienopodium , *Blitum , homomorphous. — Stem jointed. Leaves succulent, sealelike or 0. Salicornia, Ualocnemum, Arthrocnemum, &c. Sub-order II. Spiroi.obe.e. — Embryo spiral. Albumen scanty or 0. Tribe VI. Sc.ede.e. — Flowers bracteolate. Seed with a double integument. Embryo in a flat spiral. Schanginia, Buceda, Chenojiodina, Schobcria, etc. Tribe \ II. Sai.sole.e. — Flowers bracteate. Seed with a single integument. Embryo in a conical spiral. — Stem jointed or not. Leaves succulent. Caro.vylon, *Salsola, Ihdimo- cnemis, Halogeton, Noam, Anabasis, A nredera. Diagram. T T Ullucus tuberosus. Flower cut vertically (mag.). 642 CLXXXIII. PARONYCHIEvE. basal, solitary, curved, micropyle downwards. Fruit indehiscent, enveloped in the dry or succulent (Basella) calyx. Seed ovoid or sub-globose, testa membranous, albumen farinaceous. Em bryo either coiled into a flat spiral between two layers of albumen, or annular or horseshoe-shaped and surrounding a copious albumen ; cotyledons plano-convex, som etimes sub-foliaceous ; radicle descending. PRINCIPAL GENERA. [* Embryo spiral , albumen excentric.\ *Basella. *Ullucus. [** Embryo annular, albumen central .] Tandonia. Boussingaultia. *Anredera. B asdic ce are interm, ediate between Chenopodiece and Amarantacece ; they somewhat resemble Portu- lacece and certain Polygonece in their climbing stem, but they are separated from all these families by their habit, their stem twinin g to the right, their persistent and often winged bracts, sagittate anthers, filaments dilated below, &c . Baselleee are natives of America and tropical Asia. Some species of Basella, which are eaten in China and India, have been introduced into Europe, and there cultivated as potherbs under tbe name of Red Spinach (B. rubra), and White Spinach (B. alba) ; the berries of the first yield a fine red but fugitive colour. The starchy root of Ullucus tuberosus, which is used for food in Peru, has been introduced into France, and recommended as a substitute for the Potato. CLXXXIII. PARONYCHIEVE, Saint- Hilaire. Scleranlhvs annuus. Scleranlhus. Vertical section of fruit (mag.). Anychia dklioloma. Flower. Scleranthus. Hardened calyx (mag.). Anychia. Diagram. CLXXXIIL PARONYCHlEiE. 613 Illecebrum certicillatum. Illecebrum . Vertical section of flower (mag.). Illecebrum. Illecebrum. Calyx (mag.). Diagram. Dicheranthus plocamoides. Flowering cyme. Illecebrum . Seed, entire and cut vertically (mag.). Illecebrum . Seed cut transversely (mag.). Allied Tribe. TELEPHIEJE. Ttlephium Imperati . Tele phi um . Fruit (mag.). Telephium . Seed, entire and with vertical and transverse sections (mag.). Flowers small, aestivation imbricate. Calyx b-A-merous. Petals squamiform [or 0], perigynous, alternate with the calyx-lobes, sometimes 0. Stamens perigynous, tt 2 644 CLXXXIII. PARONYCHIEOE. equal or double the number of the sepals. Ovary free, 1 -called. Fruit dry, 1 -seeded. Albumen farinaceous. Embryo curved or peripheric. Herbaceous or suffruticose plants, very much branched, usually prostrate. Leaves usually opposite, sometimes fascicled and in false whorls, sessile, small, entire; stipules scarious, rarely obsolete ( Scleranthus , Mniarum). Flowers small, usually whitish or greenish, sessile or in axillary or terminal cymes often accom- panied by arrested sometimes plumose branchlets ; bracts stipular. Calyx of 5-4 more or less coherent sepals, imbricate in aestivation. Petals small, squamiform, resembling staminodes, imbricate in aestivation, inserted on the calyx, alternate with its lobes, and usually of the same number, rarely 0 ( Scleranthus , Pteranthus, &c.), or transformed into supernumerary stamens. Stamens inserted on the calyx, opposite to its lobes, and equal or rarely fewer in number ( Pollicliia , Mniarum), or twice as many from the metamorphosis of the petals {Scleranthus) ; filaments distinct ; anthers 2-celled, introrse. Ovary free, 1-celled; style usually 2-partite or -fid; ovule soli- tary, rarely 2 {Pollichia), semi-anatropous, basilar, erect, or pendulous from a basal funicle. Fruit dry, small, usually membranous, 1 -seeded. Seed with farinaceous albumen. Embryo cylindric, lateral, curved or annular; cotyledons small; radicle turned towards the hilum. [The following grouping of Paronychieoe is that prepared for the ‘ Genera Plantarum ’ : — Tribe I. Paronyciiie/e. — Flowers axillary or cymose, usually § , homomorplious. Em- bryo terete. — Leaves opposite, very rarely alternate ; stipules scarious. Paronychia, Anychia, Gymnocarpus, Herniaria, lllecebrum, Pollichia , Corrigiola, &c. Tribe II. Pteranthea;. — Flowers ternate on the top of a peduncle, lateral imperfect, surrounded by rigid simple or pinnatipartite bracts. — Leaves opposite ; stipules scarious or 0. Pteranthus, Cometes ( Saltia ), Dicheranthus. Tribe III. Scleranthea:. — Flowers axillary, panicled, or 2-4 at the top of a peduncle. — Leaves opposite, connate at the base, exstipulate. Scleranthus, Habrosia, Mniarum. — Ed.] Allied Tribe. TELEPHIE2E. Calyx, andrcecium, placentation, ovules and seeds as in Paronychieoe. Style 3-partite, or stigmas 3, recurved. Fruit a 1-seeded indehiscent utricle, enveloped in the calyx ( Corrigiola ), or a many-seeded capsule with 3 valves ( Telepliium ). Leaves alternate, glaucous ; stipules scarious. Flowers in racemes or terminal cymes. PRINCIPAL GENERA. Corrigiola.1 Telepliium.2 Paronychicce are closely allied to Caryophyllea in aestivation, insertion, placentation, and albumen ; thev differ in habit, scale-like petals or 0, scarious stipules, &c. They are equally near Amarantacece in the 1-celled ovary, curved basilar ovule, and farinaceous albumen ; but Amarantacece are more obviously apetalous, and are hypogynous, exstipulate, &c. 1 Corrigiola should be retained in ParonycMca proper, 2 Telephium is referable to Molluginete (pp. 261, 461), on account of its indehiscent fruit. — Ed. having obvious petals and dehiscent fruit. — Ed. CLXXXIV. CYNOCKAMBEiE. 645 Paronychieee aro also connected with Porttilaceee by their curved ovule and farinaceous albumen ; hut the latter aro sufficiently distinguished by their fugacious petals, usually several-celled ovary with several-ovuled cells, habit, &c. They have some connection with Basellece, which differ especially in their twining stem, double calyx, dilated filaments, &c. Finally, they are linked with Polygonece by the 1 -celled and 1-ovuled ovary and the nature of the seed, but, besides other differences, in Polygonece the ovule is orthotropous. Paronychieee are dispersed over the temperate regions of the northern hemisphere [often inhabiting deserts and very dry places]. Few are of use to man : the Rupture-wort ( [Herniaria glabra), an in- digenous plant, living in sandy soil, was formerly esteemed as a diuretic and vulnerary ; it is now fallen into disuse. Scleranthus perennis, which grows in siliceous or granitic fields, is the food of the Polish Cochineal, which long supplied the place of the Mexican Cochineal as a red dye. CLXXXIV. CYNOCRAMBE yE, Endlicher. An annual sub-succulent herb. Leaves petioled, the lower opposite, the upper alternate, entire, penni-tri-nerved ; stipules cut, uniting the bases of the petioles. Flowers monoecious, sexes springing from different axils ; $ bracts 2-3, sessile, ebrac- teate. Perianth of 2 antero-posterior leaflets, juxtaposed in aestivation, revolute after flowering. Stamens 2-20, inserted at the base of the perianth leaflets ; filaments capillary, free ; anthers at first linear, then sagittate, versatile, 2-celled, dehiscence longitudinal. ? flowers generally 3, rarely more (the intermediate one usually largest, the lateral sometimes imperfect), sessile, furnished with a posticous bract, 2 T. Cynocrambe $ Bower-bud (mag.), T. Cynocrambe. Lower part of the pli nt with ' opposite leaves. Thclyyonum Cynocrambe. Upper part of the plant with alternate leaves. T. Cynocrambe. J flower (mag.). 646 CLXXXY. MONIMIACEiE. T. Cynocrambe. Young flower with hracteoles (mag.). T. Cynocrambe. Full-grown flower (mag.). T. Cynocrambe. Ripe flower (mag.). T. Cynocrambe. Base of stipulate leaf. T. Cynocrambe. Fruit, entire and with vertical and transverse sections (mag.). T. Cynocrambe. ■ T. Cynocrambe. Seed stripped of its Embryo integuments (mag.). (mag.). anterior and 2 lateral bracteoles. Perianth excentric, tubular, sub-clavate, 3-lobulate, traversed by tbe style, becoming lateral by the enlargement of the ovary. Ovary 1-celled ; style lateral ; stigma clavate, undivided ; ovule solitary, basilar, campylotropous. Fruit a drupe. Seed horsesboe-shaped ; testa membranous. Embryo booked, in tbe axis of a sub-cartilaginous albumen ; cotyledons linear, in- cumbent ; radicle cylindric, inferior. ONLY GENUS. Thelygonum. This genus approaches TJrticece and Cannahinem in diclinism, its single perianth, 1-celled 1-ovuled ovary, basilar ovule, chalaza corresponding to the hilum, fleshy albumen, and stipulate leaves; but in TJrticece the ovary is free and the fruit an achene. It also recalls the apetalous Cyclospermece , and especially the Tetrayoniece , the ovary of which is inferior; but it differs in the number of stamens, linear authers, basilar ovule, not farinaceous albumen, &c. Thelygonum is a plant of the Mediterranean region ; it is slightly acrid and purgative, and might be used as an inferior potherb. CLXXXV. MONTMIACEJE. (Urticarum genera, Jussieu.- — Monimie^: et Atherospermehd, Br. — Monimiaceh:, Endl., Tulasne.) Flowers diclinous, apetalous. Sepals 4 or more, imbricate. Stamens oo , in- serted on an open or urceolate receptacular cupule. Carpels oo , l-cellecl, 1 -ovided, sunk in the cupide, or seated on it ; ovule anatropous. Fruit a drupe or nut. Seed CLXXXV. MONIMIACEiE. 647 A mbora. Monoecious inflorescence. Ambora. Portion of fruit cut vertically. A mbora. Embryo (mag.). Ambora. Ripe carpel cut vertically. A mbora. Portion of inflorescence cut vertically. sEgotoxicum. 9 flower (mag.). xEgotoxicum. Androecium laid open (mag.). sEgotoxicum. Vertical section of fruit (mag.). Ambora. Stamen (mag.). Ephippiandra. ize. Its leaves have a pleasant scent and an acrid and aromatic taste ; they are used as a flavouring. Tlieir chroinule and their essence, soluble in fatty bodies, are ingredients in several ointments and other external medicaments, as are also the berries, which contain a fixed and a volatile oil. Its leaves are invariably laid in layers over Smyrna figs as imported. Sassafras officinalis is a large forest tree, inhabiting the edges of streams from Canada to Florida ; the aroma of its wood and of the bark of its root resembles that of Fennel and Camphor ; both the wood and root-bark are employed as sudorifics. Ocotra (Puritan/) major, a Brazilian tree, yields the Pichurim bean, a seed containing a volatile acid, and a butyraceous oil whose tasto and smell are between those of Nutmeg and Sassafras. The Brazilians use it largely in cases of weakness of the bowels. Persia gratissima, the Avocado or Alligator Tear, a large South American tree, has no aromatic principle, and is only useful for the thick and butyraceous flesh of its berry, which tastes like pistachio, and is eaten with spices and meat, and animals of all kinds feed upon it. [It further yields an abundant oil for illuminating, soap-making, and its seeds a black dye used for marking linen.] Cinnamomum officinale, which yields Cinnamon bark, is cultivated in Ceylon and tropical colonies ; this bark is pale brown and sweet-scented, hot, aromatic and sugary ; it is used as a condiment, tonic, and stimulant. The Chinese Cinnamon (C. Cassia ) grows in Malabar, China, and the Moluccas ; its bark [as ex- ported is thicker than that of tho Ceylon Cinnamon, and not rolled, and its colour is darker ; its taste is hot and pungent, and its scent recalls that of bugs ; it is therefore less valued. [This, C. malabatliricum, and allied species, are used to adulterate true Cinnamon.] Campbora officinartim grows wild in China and Japan, and is cultivated in tropical and sub-tropical colonies ; its wood and leaves contain Camphor, a concrete volatile colourless oil, lighter than water, with a penetrating odour and an acrid but cooling taste ; it is very soluble in fixed and volatile oils, in alcohol and ether, evaporating completely in the air, and is very inflammable. This principle exists in several . as also in several plants not connected with this family, and notably in Labiates. Camphor is much used as a sedative, autispasmodic, and antiseptic; it is largely applied externally, dissolved in alcohol, oil. and vinegar; taken in overdoses it may produce complete insensibility, and even death. Biri biri or bebeiru, of Guiana, an alkaloid procured from Nectandra Rodiati of Guiana, is a most powerful medicine, largely used as a febrifuge, and supposed to be the principal ingredient in Warburg’s Drops, a medicine in use throughout British India. Various species of Sassafras are used as stimulants, tonics, nnd vermifuges.] The woods of most Laurinea are of a fine and solid tissue, and are peculiarly useful to cabinet-makers nnd turners. Those most used in France are the Anise or Sassafras of Orinoco (Ocotea cymbarum) ; the Bebeeru (Nectandra Rodiai), a hard heavy greenish-yellow wood from Guiana and the famous Greenhenrt of Dementia; and the Licari (Clove Cassia of Brazil, or Rose of Cayenne, Licaria guyanensis1), which the French workmen call Pepper-wood, from the pungency of its dust. [To these must be added the Vinatico or Madeira Mahogany, the produce of Persea Indica ; the foetid Til of the Canaries ( On ndaphne ft tens)-, the Sweetwood of Jamaica (Oreodaphnc exalbata) ; and the Stiukwood of South Africa (O. buUata).'] • Dicypcllium caryophy/la/um, Noes, according to Stcudel. — Ed. 65G CLXXXVIII. THYMELE^l. CLXXXYIII. THYMELEJf. (Thymele^e, AcLanson. — Daphnoide^e, Ventenat. — Daphnace^e, Meyer. — Aqtjilarine^e, Br. — Aquilariace^e, Lindl.) Flowers £ or polygamous. Perianth simple, A-h-fid. Stamens equal to the perianth-lobes, fewer, or double the number, inserted on the tube or throat of the perianth. Daphne Laureola. Daphne. Flower, entire and cut vertically (mag,). Daphne. Diagram. Daphne. Drimyspermum. Pistil cut vertically Fruit cut (mag.). (mag.). Drimyspermum. Ripe fruit laid open (mag.). Drimyspermum. Seed (mag.). Gynnopsis. Flower laid open (mag.). Gyrinopsis. Pistil laid open (mag.). Gyrinopsis. Young fruit laid open (mag.). Drapetes. Transverse section of fruit (mag.). Drapetes. Ovary and calyx-tube. Drapetes. Pistil (mag.). Drapetes. Calyx-tube (mag.). CLXXXVIII. THYMELEtE. 657 Ovary free, 1-2-celled ; ovule pendulous, anatropous. Seed exalbuminous or nearly so. Embryo straight ; radicle superior. Shrubs or small trees, rarely annual herbs, bark furnished with a fibrous and tenacious liber, juice acrid and caustic. Leaves scattered or opposite, simple, entire, usually coriaceous and shining, jointed at the base, penninerved, exstipulate. Flowers 2 or polygamous, axillary or terminal, solitary or in a spike, raceme, umbel, fascicle or head, sometimes involucrate, purple, white, yellow or greenish, very rarely blue, often handsome and scented, usually with silky pubescence. Perianth simple (calyx), petaloid or rarely herbaceous, monosepalous, tubular, in- fundibuliform or urceolate, deciduous or marcescent ; tube sometimes jointed above the ovary, or above its base, which persists when ripe ; limb of 4-5 equal lobes, or the outer a little the largest, imbricate in aestivation ; throat naked or furnished with scales, perigymms glands, or short filaments equal and alternate with the" perianth- lobes, or multiple in number; hypogynoiis scales 4-8, small, membranous, fleshy or filiform, distinct or united into a cup or ring, sometimes 0. Stamens equal and alternate with the perianth-lobes ( Drapetes , Struthiola), or reduced to 2, or twice as many and 2-seriate, inserted on the tube or throat of the perianth, the upper series opposite to the perianth-lobes, the lower alternate ; filaments filiform or flattened ; anthers 2-celled, ovoid oblong or linear, basi- or dorsi-fixed, or adnate, dehiscence longitudinal, introrse, connective sometimes apiculate. Ovary free, 1 (rarely 2-) celled; style simple, sub-terminal or ventral, sometimes veiy short, or 0; stigma capitate or sub-clavate, papillose or liispidulous, rarely smooth ; ovules anatropous, solitary, pendulous near the top of the cell; rarely 2-3, collateral or superimposed. Fruit indehiscent, a nut drupe or berry, very rarely a capsule with 2 semi-placen- tiferous valves (. Aguilaria , Gyrinops). Seeds pendulous, raphe lateral, testa thin or crustaceous ; albumen scanty and fleshy, or 0. Embryo straight; cotyledons plano- convex ; radicle short, superior. [In the original this order is simply divided into two tribes, Daphneoe and A ■/// Uarinca' ; the following is the more detailed arrangement of Meissner in De Candolle’s ‘ Prodromus ’ : — Sub-order I. — Thy.mkl.eac. Ovary l-celled, 1- (or very rarely 2—3-?) ovuled. Ovuleappended near the top of the cell. Stem woody or herbaceous. Tribe I. Pavhxk.k. — Scales or perigymms glands absent. *Pimelea , Drapetes, Cansjera, Daplnngtsis, *Lagetfa, *Dais, *Daphne, *Wi1estroemia, Stellera, Thymeleea, *Passerina. Trii k. II. Gnidieac. Scales or perigynous glands prosent in the tube or throat of the perianth. Strulliinla , Lachtuea, *Gnidia, *Lasiosiphon, See. Sub-order II. — AoriLARiK k. Ovary 2-celled, cells 1 -ovuled, or l-celled with 2-3 1-ovuled parietal placentas. Tbibk III. G yrinopidk.e. — Perigynous scales various. Flowers 5-merous. Acpiilaria, Gyrinops, &C. Triiik IV. Dri m yspkrm k.k. — Perigynous scales absent. Flowers usually 4-merous. Pscitdais, 1 >ri in y sperm um . — El>. j u u 658 CLXXXIX. HERN ANDIES. Thymelece present an affinity with Santalnceee, Elceaynece, and Protcacece. Santalacece are easily dis- tinguished by the valvate perianth, the inferior ovary, the ovules reduced to a nucleus, pendulous from a free central placenta, and the abundant albumen ; Elceagnece by the erect basilar ovule, the often spinescent branches, and the peltate scales ; Proteacece differ from Thymelece in the valvate aestivation and inferior radicle. Thymelece are scarcely distinguishable from Rosacece , except in habit, their often opposite and.exstipulate leaves, the tenacious liber, and acrid vesicant juice. As in Rosacece, the flower is coloured, and if the petals are absent they are represented by scales accompanying the calyx, the stamens are peri- gynous, the ovary is free, the ovule pendulous and auatropous, the embryo straight, exalbuminous, &c. In a word, a flower of Dais or Daphne exactly resembles that of some Amygdalece. Thymelece mostly inhabit the warm extra-tropical regions of the southern hemisphere, especially Africa and Australia ; they are less abundant in the northern temperate hemisphere and between the tropics; they are rarer in America. Daphne belongs to the Old World, Pimelea is spread over the Australian continent [and New Zealand], Gnidia inhabits South Africa. Layetta and many other genera are tropical, Dirca is North American, Drapetes temperate South American. Several genera, and especially the sub- order Aquilariece , inhabit tropical Asia. This family, a very natural one in its botanical characters, is also so in respect of the properties of its species. The bark and fruit of many contain, besides a bitter extractive, a peculiar green very acrid and active sebaceous matter. The roots of several furnish a yellow dye ( Passerina tinctoria ) ; others have tenacious cortical fibres, which are variously used in hot countries. The extremely acrid seeds of the Spurge-flax ( Daphne Gnidium), a native of South Europe, were foimerly used as a purgative, but are dangerously powerful in their action ; a decoction of the leaves was also used, the effect of which is less violent. The bark has a slightly nauseous smell and a corrosive taste; it acts as a caustic when applied to the skin, either entire, powdered, or as an ointment. The Mezereon (I). Mezereum), the bark of which is extensively used as a medicine in Germany, together with D. alpina and Cncorum , all indigenous in France, have the same virulent properties as the Spurge-flax. The leaves and bark of D. Laureola, a native of woods throughout France, are often used when fresh as an issue by the peasants. Dirca palustris in North America, Layetta lintearia in South America, Daphne cannahina in India, are similarly used. The leaves of Daphne Tarton-raira in Sardinia, those of Gnidia at the Cape of Good Hope, and the berries of Drimyspermum in Java, are used in the popular pharmacy as purgatives and emetics. In India a paper is made from the liber of Daphne cannahina, and cord is manufactured from that of Layetta funifera and lintearia in South America [the latter of which produces the beautiful substance called Lace-bark]. CLXXXIX. IIERNANDIEyE} (Hernandieje, Blume. — Hernandiacea:, Dumortier.) [Trees. Leaves scattered, coriaceous, petioled, ovate or peltate, quite entire, exstipulate. Flowers monoecious, in peduncled axillary and terminal cymes, ternate in a 4-leaved involucre ; central flower $ , 4-merous, sessile in an urceolate persistent involucei ; lateral £ , not involucellate, pedicelled, usually 3-merous. Calyx herba- ceous; tube short, narrow, jointed in the ? , upper part deciduous ; limb of $ 6-, of ? g_10-partite ; lobes 2-seriate, valvate in {Estivation, inner rather narrower. Flowers $ : Stamens 3 (very rarely 4), inserted on the calyx- throat, opposite its outer lobes, connivent ; filaments short, usually l-2-glandular at the base ; anthers didymous, large, erect, adnate to the large connective, 2-celled, dehiscing longitudinally by a deciduous valve. Flowers $ : Staminodes glandular, ojtposite the outer calyx-lobes. Ovary 1 This Order is omitted in the original. — Ed. CXC. ELiEAGNEiE. 659 included in tlie calyx-tube, free, sessile, 1 -celled; style terminal, filiform, deci- duous ; stigma fleshy, dilated, 3-4-crenate or -lobed ; ovule 1, pendulous from the top of the cell, anatropous. Drupe large, spongy, ovoid, dry, 8-furrowed, or smooth, included in the membranous calyx-tube. Seed sub-globose, inverted ; testa crusta- ceous, raphe annular, albumen 0. Embryo ortliotropous ; cotyledons large, fleshy, lobed, torulose ; radicle short, superior. ONLY GENUS. Hernandia. Hemandiea are very nearly related to Lmtrinece (of which they may he regarded as a tribe) and Thymelece, differing from both conspicuously in habit, from Lauritiecs in the structure of the anther, from Thymeleee in this, in wanting tho tough bark, in the position of the style, and the 2-seriate perianth. The few species are natives of tropical coasts. The wood of Hernandia is spongy, and used for floats and tinder ; the bark, leaves, &c., are purgatives, and the juice is an active depilatory. — Ei>.] CXC. ELsEAGNEvE. (El/EAGNORUM pars, Jussieu. — Elhsagne^e, Br. — EljEAGNace^:, Lindl.) Flowers 2 or dioecious or polygamous. Perianth simple, herbaceous, or coloured within. Stamens periyynous, double tlie member of the perianth-lobes, or equal and alternate with them. Ovary free, \-celled, 1 -ovuledj ovule ascending, anatropous. Fruit included in the hardened perianth-tube. Seed erect-, albumen scanty. Embryo straight, azile ; RADICLE inferior. Trees or shrubs, covered with scarious discoid silvery or brown scales which are furnished at the margin with stellate hairs ; branches sometimes spinescent, branchlets annual and deciduous, buds naked. Leaves alternate (. Elceagnus , Hippo- phae) or opposite (Sheplierdia, Conuleum), simple, penninerved, entire, shortly petioled ; stipules 0. Flowers regular, 2 or dioecious or polygamous, solitary in the axil of the leaves, or in spikes racemes or cymes, yellow or white, often scented; S el.: perianth simple, herbaceous, composed of 2 antero-posterior sepals ( Hippophae ), or of 4 sepals united at the base into a short tube [Sheplierdia) ; 2 > ? fl. : perianth tubular, scaly outside, often coloured within ; limb 2-fid (. Hippophae ) or 4-partite (Sle pherdin), or 4-6-fid ( Elceagnus), imbricate or valvate in aestivation, rarely conical and entire (Conuleum). Disk lining the perianth-tube, and forming a glandular ring at the throat (Elceagnus, Sheplierdia), sometimes dilated into a fleshy cone traversed by the style and longer than the perianth (Conuleum), sometimes 0 (Hij'paphai). Stamens inserted on the torus, 4-8 (double the sepals) in the $ flowers, and opposite and alternate with them ; equal and alternate with the perianth -lobes in the 2 and polygamous flowers ( Elceagnus ) ; anthers erect, basi- or dorsi-fixed, cells sub-opposite, parallel, introrse, dehiscence longitudinal; pollen compressed, obscurely 3-gonous. Ovary sessile, free within the accrescent perianth-tube, 1 -celled; style simple, erect, elongated, stigmatiferous on one side ; ovule solitary, anatropous, GGO CXC. ELiEAGNEiE. Elceagnus angustifolict . Elceagn us. flower (mag.). G Elceagnus. Fruit. Elceagn us. Stone. Elceagnus. Embryo (mag.). E ceaynus. Radicle and plumule ; cotyledons taken away. Elceagn us. Ovary and perianth cut verticlly. Elceagm-s. Seed cut veriically (mag.). Elceagnus. Vertical section o£ young fruit (mag.). Elceagnus. Transverse section of young fruit (mag.). a. Fleshy part of calycinal tube ; b. Bony part of calycinat tube, resembling stone ; c. Cellular part interposed ; d. Pericarp ; e. Testa ; /. Embryo. CXC1. PROTEACEiE. 601 nearly basal, ascending, sessile or shortly funicled. Fruit indehiscent, enclosed in the drupe-like calyx-tube, which is fleshy outside and bony within. Seed as- cending, testa membranous or cartilaginous, hilum basilar, raplie projecting, chalaza apical; albumen 0, or very thin. Embryo straight, axile ; cotyledons thick; radicle superior. PRINCIPAL GENERA. ’ Ilippophae. Shepherdia. * Elteagnus. Conuleum. Etaatpieee are very near Vrotcaeecc (which see). They approach Santalaceee, hut these differ in their really adherent ovary and the ovules. We have indicated the affinity between Elceagnece and Thymelece under that family. Elaagnecr form a small family, chiefly natives of the mountains of tropical and sub-tropical Asia ; a few species inhabit Europe, the Mediterranean region, and North America. They are very rare in tropical America, and entirely absent in south temperate latitudes. The fleshy base of the perianth, enveloping the fruit of Elccagnus, contains free malic acid, which renders the fruit of some species edible, as the Zinzeyd (E. hoy terms and orientalis ) in Persia, and E. arborea and conferta in India. The fruit of Ilippophae rliamnoides, an indigenous [French] shrub, is acid and resinous tasted; though described as very poisonous, the Finns are said to use it as a seasoning for fish. It is cultivated for its running roots and thorny close and interlaced branches, which form hedges and bind the sands. The balsamic flower of Eleeagnus angustifolia, commonly called Bohemian Olive, is pre- scribed in many parts of South Europe for malignant fevers. CXCI. PROTEA CEJE. (Protege, Jussieu. — Proteaceie, Br.) Banksia querci/olia. Fructiferous cone. 662 CXCI. PROTEACEiE, Banksia. Part of cone cut transversely, natural size. Banksia. Diagram, showing the position of the Banksia. flowers and scales. Stigma. Banksia. Banksia. (mag.). in profile. Banksia. Banksia. Ovary and hypogy- Ovary cut ver- nous scales (mag.), tically (mag.). Banksia. Embryo, entire and cut vertically. Banksia. Seed. Flower cut vertically Flower-bud seen Banksia. Inflorescence, natural size. Banksia. Transverse section of ovary. Banksia. Transverse section of flower-bud (mag.). Banksia. Sepal and stamen (mag.). Sfenocarpus. Seed from which a part of the outer membrane its outer integu- Sienocarpus. Seed laid open, showing the embryo clothed with a mem- brane, and with Banksia. False septum of a follicle. Grevillea. Flower-bud cut vertically. has been removed. ments (mag.). Stenocarpus. Fruit (mag.). CXCI. PROTEACEiE. 663 OrtrOlea. Diagram. Orerillea. Pollen. Grevil/ea. Transverse section of embryo. Gievillea. Embryo, entire and cut longitudinally (mag.). Gvevillea. Fruit. Flowers usually $ , 4-merous. Perianth simple , (estivation valvate. Stamens perigynous, equal and opposite to the sepals. Ovary free, 1-cellecl, l-oo -ovuled ; ovules anatropous or orthotropous, micropyle always inferior. Fruit a nut or follicle, l-oo -seeded. Seed exalbum inous ; radicle inferior. Shrubs, trees, very rarely herbs. Leaves scattered, rarely opposite or whorled, usually coriaceous, persistent, simple, entire or often toothed or variously laciniate, or piunatisect or pinnate, sometimes polymorphous on the same plant ; stipules 0. Flowers § , rarely diclinous, terminal or axillary, in a head, spike, fascicle, umbel, raceme or panicle, rarely axillary and solitary, white yellow or red, very rarely blue or green, some abundantly nectariferous ; capitula and spikes fur- nished with imbricate bracts, sometimes with a general involucre ; rachis or recep- tacle usually thick, conical spheroidal or cylindric, alveolate, furfuraceous or velvety, rarely naked ; pedicels geminate or solitary in the axil of a bract. Perianth simple (calyx), coriaceous, coloured or herbaceous, regular or irregular, marcescent or deciduous, usually pubescent outside ; sepals 4, linear or spathulate, valvate in {estivation, or imbricate at the top, spreading or connivent, or united into a tube usually split on one side; limb sometimes closed and retaining the stigma, some- times 4-fid, regular or 1-2-labiate, lobes reflexed plane or concave. Stamens 4 (sometimes 1 arrested), opposite to the sepals and inserted on their limb or claw, very rarely hypogynous ( Bellendena ) ; filaments filiform, short, or completely adnate to the calyx ; anthers dorsi- or basi-fixed, linear, oblong, ovoid or cordate, 2-celled, introrse, distinct, or rarely syngenesious by the contiguous cells, the other sometimes imperfect; p<>lh n triangular, ellipsoid or lunate, rarely spherical; glands or scales hypogynous (rarely obsolete or 0), sometimes 4, alternate with the sepals, either distinct or united into a cup or ring or adherent to the bottom of the calyx; some- times less than I. or reduced to one anterior. Ovary free, sessile or stipitate, 1 -celled (rarely pseudo-2-celled) ; style terminal, filiform, persistent or deciduous, either equalling the calyx and straight, or long, exserted, and curved; stigma ter- minal or lateral, undivided, emarginate or 2-fid ; ovules solitai'y or geminate, or several 2-seriate; micropyle always infei'ior, sometimes fixed to the base of the cell and anatropous, sometimes to the top of the cell and oi-tliotropous. Fruit com- pressed, ventricose or gibbous, smooth or rugose or verrucose or bristling with points ; sometimes indehiscent, 1-celled, 1-2-seeded, a nut samai’a or drupe; sometimes a 664 CXCI. PEOTEACEiE. capsule or follicle, 1-2-valved, 1-2-m any-seeded, 1-celled, or 2-celled by a false septum formed by membranes detached from the testa of the contiguous seeds and separable into 2 plates. Seeds usually ovoid or globose in the nuts, compressed and winged in the follicles, exalbuminous ; hilum basilar or lateral. Embryo straight ; radicle sometimes near the hilum, sometimes diametrically opposite to it, always infericr. [Tribes of Proteacece according to Meissner in De Candolle’s ‘ Prodromus ’ : — Sub-order I. Nucumentace®. — Fruit an indehiscent nut or drupe. Flowers usually solitary in the axil of each bract. Trice I. Prote®. — Anthers inserted at the base of the short spreading perianth -lobes, all perfect (upper rarely imperfect) ; cells 2, parallel, adnate. 1. — (Australia). Petropldla, Isopogon, Adenanthos, Stirling) a. 2. — (South Africa). Aulax, * Leucodendron, * Protea, Leuco- spermum, Mimetes, Serruria, Nivenia, Sorocephalns, Spatalia. Tribe II. Conosperme®. — Anthers at first cohering by the adjacent cells, then free. Hypogynous scales 0. Ovary obconic, 1-celled, 1-ovuled. (Australia.) Sijnapliea , Gono- spermum. Tribe III. Franklandie®. — Anthers perfect, cells adnate to the perianth-tube. Ovule 1. Nut dry, with a pappus-like coma. (Australia.) Franldandia. Tribe IV. Persoonie®. — Anthers perfect, inserted on the perianth-segments. Ovules 2, rarely 1. Drupe usually fleshy. 1. — (Australia). Pellendena, *Persoonia, &c. 2. — (South Africa). Fauria, Prabejum. 3. — (America). Andropetalum, *Guevma. Sub-order II. Folliculares. — Fruit dehiscent, 1-2-valved, 1- cc-seeded. Tribe V. Greville®. — Ovules 2-4, collateral. Seeds without an intervening membrane or substance. 1. — (Australia). Felicia, Macadamia, Xylomelum, Orites, Lambertia, Grevillea, II alien, Kniglitia, &c. 2. — (Asia). Felicia. 3. — (America). Rhopala, Adenosteplmnum. Tribe VI. Embothrie®. — Ovules several, imbricate, in 2 rows. Seeds usually separated by an intervening substance. 1. — (Australia). Telopea, Lomatia, Gardwellia, Stenocarpus. 2. — (America). Oreocallis, Embotlirivm, Lomatia. Tribe VII. Banksie®. — Ovules geminate. Seeds usually separated by a woody or mem- branous plate. Flowers in dense cones or heads. (Australia.) Banlcsia, Bryandra. — Ed.] Proteacece, placed by Endlicker in the same class with Elceayncce, Thymelece, Santalacece , and Laurineee, have been separated from them, with Elceaynece, by Brongniart, and thus form a well-defined and much more natural group. These two families, in fact, are closely allied in habit, the simple perianth with valvate aestivation, perigynous stamens, free 1-celled ovary, ovule with inferior micropyle, exalbu- minous seed, &c. Elceaynece only differ in the always regular flower, the stamens alternate with the perianth-lobes in the isostemonous flowers, and the fruit included in the perianth-tube, which is fleshy outside aud bony within. Proteacece approach Santalacece in the valvate aestivation, isostemony, and stamens opposite to the perianth-lobes; but Santalacece differ in the inferior ovary, ovule, albuminous seed, and superior radicle. Proteacece have also some analogy with Thymelece, founded on the absence of petals, the 1-celled ovary, and the exalbuminous embryo ; but Thymelece differ in the imbricate aestivation, the usually diplostemonous flower, the alternation of the stamens with the calyx-lobes in the isostemonous flowers, and the superior radicle. Beyond these, the most important character separating Proteacece from the families above-named resides in the micropyle invariably facing the base of the ovary, whatever may be the structure of the ovule and the situation of the hilum. CXCII. URTICEiE. 605 Prof i acece almost exclusively belong to south temperate regions, being especially abundant at the Cape of Good Hope and in Australia. They are much rarer in New Zealand and in South America. A few are found in tropical Australia and equatorial Asia; some inhabit equatorial America; very few have been observed in equatorial Africa, and none have been found in the north temperate zone [except at the foot of the Himalayas and in Japan], This family is more noticeable for the richness and elegance of its flowers than for its useful pro- perties ; it has therefore been long cultivated by gardeners. The bark of several species is astringent, the seeds of some are edible; and notably those of the Queensland Nut, Macadamia ternifolia. Protect cjrandi- flora, from South Africa, is used by the natives for the cure of diarrhoea. The seeds of Brabejum stellatum, roasted like chestnuts, are edible, and its pericarp forms a substitute for coffee; those of Guevina Avcllana are collected by the inhabitants of Chili, who like their mild and somewhat oily taste ; its pericarp is there substituted for that of the pomegranate. The nectaries of Banksia and Protect secrete an abundant nectar, eagerly sought by bees ; that yielded by Protea mdlifera, lepidocarpos and speciosa, is used, under the name of Protea Juice (. Boschjes xtroop), as a bechic at the Cape of Good Hope. The aborigines of Australia feed on the nectar of Battista. The wood of some Australian species is useful for cabinet work. Protect granctiflora is the Wagen-boom, whose wood is used for waggon wheels.] CXCII. URTICEvE. (Urticabum genera, Jussieu. — Urticearum genera, D.C.— UrticE/E, Hr., Weddell. — Eeticacea:, Encllicher.) Nettle. flower (ma:.), Nettle. Diagram <£ Nettle. Fruit, entire and ent vertically (mag.). Stinging Nettle, t Crtica ur>i8 ; radicle superior. Stem woody. Leaves alternate, stipulate. Trees or shrubs, branches scattered, buds scaly. Leaves often sprinkled with resinous glands, alternate, simple, toothed, the pinnate nerves terminating in the teeth; stipules free, caducous. Flowers monoecious, sessile, at the base of scaly bracts, in terminal or lateral catkins. — Catkins $ : Scales bearing 2-3 flowers, each accompanied within by 2 or 4 squamules. Perianth calyciform, regular, 1-1"'" d Ah us . or reduced to a scale ■ lb l»hi). Stamens 4, inserted at the base of the perianth-lobes, and opposite to them (Alnus) ; or 2, inserted at the base of the scale-like perianth ; filaments bifurcate at the top (Betula) ; anthers basifixed, with cells juxtaposed (Alnus), or separate on the branches of the filament (Betula), dehis- cence longitudinal. — Catkins ? sometimes pendulous, solitary, with membranous or 678 CXCYII. BETULACE^L 3 c? flowers with sqnamiform perianth (mag.). Birch. (Betula alba.) and 9 catkins. j Ain vs. g flower (mag.). Ain us. Scale bearing 3 in capitula : — Flowers j seated within the last sheaths of the branches, each with 4 bracteoles, 2 lateral and 2 antero-posterior, all connate into a deciduous cap which is detached by the elongation of the stamen. Stamen solitary, central ; filament at first short, thick at the base, lengthening while flowering ; anther incumbent; cells sub-opposite, sepai-ated at the top and bottom, dehiscence longitu- dinal. Flowers 9 capitate at the tips of the branches, each sessile in the axil of a persistent bract, furnished with 2 boat-shaped bracteoles, at first open, then closing on the young fruit, and re-opening when ripe. Perianth 0. Ovary compressed- lenticular, 1-celled; style terminal, very short; stigmas 2, elongate-filiform; ovules G84 CC. CASUABINEiE. Casuarina. Transverse section of 3 spike (mag.). Casuarina. Ovary , longitudinal section, showing the collateral ovules and air- chamber. Casuarina quadrivalvis. 3 inflorescence. Casuarina. Young $ flower, showing one of the bracteoles, cut above its base (mag.). Casuarina. 3 flower, anther removed, leaving the basilar filament (mag.). Casuarina. Transverse section of ovary, passing by the 2 ovules, and showing the air-chamber to the right. Casuarina. Transverse section of a very young ovary, cutting through the middle of one of the ovules. Casuarina. Fruit cut (mag.). C. quadrivalvis. Diagram 3 . Casuarina. Ripe cone. C. paludosa. Diagram 3. CCI. SALICINEiE. 685 2, collateral, fixed above tlie base of the cell, semi-anatropous. Fruit a strobilus of woody bracts and bracteoles, each pair of bracts opening like a capsule into 2 spread- ing valves, and containing a samaroid caryopsis membranous at the top, crustaeeous at the base, and filled with spiral vessels. Seeds solitary, erect, funicle attached to the middle of the testa and backed by the arrested ovule ; testa membranous, nearly transparent. Embryo exalbuminous ; cotyledons large, oblong, compressed ; radicle minute, superior. ONLY GENUS. * Casuarina. Caswirinea are distinguishable at the first glance, having scarcely any affinity except with Myricece, which differ, besides their characteristic habit, in the nature of their drupaceous fruit. Dr. Hornet, who has examined fresh flowers of Casuarina, cultivated by M. Thuret at Antibes, informs us that 1 in C. quadrivalm each stamen is surrounded by a 3-valved perianth (?) ; two valves are lateral, the third faces the axis ; in very rare instances a fourth valve has been found pressed against the anterior face of the stamen. The posterior valve is linear and does not adhere to the lateral valves; the latter are much larger, plicate, enlarged at the top, recurved into a hood, and adhere by the interlacing of marginal hooked hairs. The fourth valve, when present, is narrow and linear. The $ flower of C. tomlosa is the most complicated of all, and the only one which constantly presented a 4-nary perianth, composed of 2 lateral, a posterior and an anterior segment. This arrangement is easily seen in the young flowers, in which the filaments are still very short. As the filament lengthens, the valves are torn across a little above their bases, which persist .as small brown truncate scales, surrounding the base of the filament, the upper part remaining pressed against the anther, capping its top until the anther is ready to open, when this latter becomes oval, greatly enlarged, and drives off, like a wedge, the lateral valves.’ As far ns Hornet could judge of tho $ flowers, the funicle in C. qttadrivalvis is not normally free, and the placental vessels are curiously arranged ; a section of the ovary shows the cavity of the pericarp to be divided by a cellular mass of the placenta, one of the cavities containing the collateral ovules, the other being empty. This empty chamber is not accidental, for it is seen in very young ovaries, and is perhaps itself divided in two by a further prolongation of the placenta. Casuarinece are chiefly natives of Australia, where they have been found in a fossil state ; they are also met with in India, the Indian Archipelago and Madagascar, where they are called Filao. Catuarinete are of little use to man ; their hard and heavy wood may be used in ship-building, and is made into war-clubs by the Australians [and Pacific Islanders]. The bark of C. equisetifolia is astringent; it is used in powder in dressing wounds, and in a decoction to stop chronic and choleraic diarrhoea; it may also prove useful as a colouring matter, or mordant. That of C. muricata furnishes the Indians with a nerve-tonic medicine. CCI. SALICINEM , L.-C. Richard. Flowers dioecious. Perianth 0. Stamens 2-oo . Ovary 1 -celled’, styles 2 ; PLACENTAS parietal, 2, oo -ovuled ; ovules anatropons. Capsule with 2 semi-placen- tifemus valves. Seeds erect, bearded at the base, exalbuminous. Radicle inferior. — Stem woody. Leaves alternate, stipulate. Trees or snRuns, or dwarf creeping undershrubs ; branches cylindric, alternate. Leaves alternate, simple, penninerved, entire or angular-toothed, petioled; stipules scaly and deciduous, or foliaceous and persistent. Flowers dioecious, in terminal sessile or pedieelled catkins, each furnished with a membranous entire or lobed 686 CCI. SALICINE^. Willow. axillary .a- terminal, solitary, rarely in a spike or cymose raceme, sometimes fur- 1 Thr pitcher is not the dilated petiole, but a special organ, represented by aglandat the topofthe costa of t lie joung leaf. Sec Linn. Trans., vol. xxii., p. 415. — En. 706 CCVIII. AMSTOLOCHIEZE, Aristolochia. Flower (mag.). Aristolochia. Aristolochia. Flower cut verti- Pistil and andrcecium cally (mag.). (mag.). Aristolochia. Fruit. Aristolochia. Seed, entire, with horizontal and vertical sections (mag.). Asarum. Flower cut vertically (mag.). Aristolochia. Transverse section of ovary (mag.). Asarum. Transverse section of ovary (mag.). Asarum europceum. CCVIII. ARISTOLOCHIEiE. 707 Asarum. Seed, entire .and cut vertically (mag.). Asarum. Diagram. Asarum. Androecinm and pistil (mag.). Asarum. Pistil (mag.). nished with bracts, usually large, sometimes small, brown or blackish-purple, often fcetid. Perianth single (calyx), sometimes regular, 3-lobed, campanulate or rotate, sometimes irregular, polymorphous; tube swollen above the summit of the ovary into a utricle enclosing the stamens, and spreading into a cup-shaped 1-2-labiate or peripheric limb, valvate or induplicate in aestivation, persistent or marcescent. Stamens 6, rarely 5 or 12 (rarely 18-3G), sometimes furnished with short filaments, free, or coherent below, inserted on an epigynous annular disk, or at the base of the stylary column, sometimes sessile and adnate to the stylary column by the whole inner surface of the anthers ; anthers 2-celled, extrorse, or rarely sub-introrse, or some ex- trorse, and the others introrse in the same flower ( Heterotropa ), cells parallel, apposed, dehiscence longitudinal, connective sometimes prolonged into a point (Asarum). Ovary more or less completely inferior, slender (except Asarum ), 6- or 4-celled ; styles usually 6, rarely 3 or more, united at the base into a column (nearly always stuminiferous), divided at the top into stigmatiferous lobes; ovules anatropous, raplie thick, 2-seriate at the inner angles of the G-celled ovaries, and 1-seriate down the centre of the septum in the 4-celled ovaries ( Bragantia ). Fruit sometimes crowned by the persistent calyx-limb or by its marcescent base, sometimes umbilicate by its scar, a capsule, rarely a berry, sometimes sub-globular or 4-gonous, usually G-gonous, with G or 4 cells, sometimes irregularly dehiscent, usually septicidally G- 1 valved at the base, rarely at the top, rarely apical. Seeds more or less numerous, horizontal, usually flattened, lower face convex, upper concave and occupied by a prominent suberose fungoid raphe, which separates from the testa; albumen copious, fleshy or sub-horny. Embryo minute, basilar, axile ; cotyledons very short, scarcely visible before germination ; radicle near the hilum, centripetal or inferior. Ovary G-celled, more or less inferior, short and rather broad. Stamens 1 2, free ; filaments distinct from the stylary column, G outer shortest, opposite to the styles ; anthers introrse or extrorse. Calyx persistent ; limb regular, 3-lobed. Capsule opening irregularly. — Herbs with perennial rhizomes, lower leaves scale- like, cauline normal, reniform. Flower terminal, solitary. Tribe I. ASARE2E. GENERA. Asarum. Ileterotropa. z z 2 708 CCVIII. ARISTOLOCHIE^k Tribe II. BRA GANTIE7E. Ovary completely inferior, elongate, slender, stipitate, 4-gonous, 4-celled ; ovules numerous, 1-seriate on tlie middle of the septa. Stamens 6-36, equal, furnished with filaments. Calyx deciduous, closely appressed to the top of the ovary, and 3-lobed. Capsule siliquose, 4-valved. — Shrubs or undershrubs. Leaves reniform, oval or oblong-lanceolate, reticulate. Flowers in spikes or racemes, small ( Bragantia ), or very large, campanulate ( Tliottea ). GENERA. Bragantia. Tliottea. Tribe III. ARISTOLOCHIJE. Ovary completely inferior, elongated, slender, stipitate, 6-gonous, 6- (rarely 5-) celled ; ovules numerous, inserted at the central angle of the cells and 2-seriate. Stamens 6 (rarely 5) ; anthers sessile, extrorse, adnate by their whole dorsal surface to the stylary column. Calyx deciduous, constricted above the top of the ovary, irregular, tubular, limb various. Capsule oblong or globose, 6-angled, 6-valved, opening at the bottom or top of the fruit. GENERA. Ilolostylis. * Aristolochia. The affinities of Aristolochiece are rather obscure ; some botanists have placed them near Cucurlitacece , which they resemble in their twining stem, alternate leaves, inferior ovary and extrorse stamens; but Cucurlitacece differ in their diclinous double-perianthed flowers, imbricate aestivation, in the form and number of the stamens, the mode of placentation, the absence of albumen, &c. They might with better reason be placed near Nepentliece and Cytinece ; they have, like Cytinece, a monoperianthed isostemonous or diplostemonous flower, extrorse anthers, inferior often 1-celled ovary ; but Cytinece are parasitic, aphyllous and diclinous ? Nepenthece are allied to Aristolochiece, and especially to the tribe Brayantiece , by their single perianth, extrorse anthers, 4-gonous several-celled and many-ovuled ovary, and especially by the exceptional structure of the leaves (see p. 705). Aristolochiece mostly inhabit tropical America, they are rarer in northern temperate countries and in tropical Asia, and somewhat more frequent in the Mediterranean region. None have been met with in southern temperate latitudes [except Aristolochia in America]. Most Aristolochiece contain in their root a volatile oil, a bitter resin, and an extractable acrid sub- stance, which have been celebrated in all times and countries as stimulants of the glandular organs and the functions of the skin. Other species, in which the bitter resinous principle predominates, have been from the most ancient times administered as anti-hysterics, emmenagogues, &c., whence their name. At the present time the species most in use are Aristolochia serpentaria and A. officinalis, designated in North America Virginian Snakeroot, Viperine, Colubrine, &c., and especially prescribed for the bite of the rattlesnake. It was not until the seventeenth century that European practitioners became aware of their properties, and employed them instead of the indigenous species. Their congeners of the Antilles, Peru, Brazil, and India, are equally praised as alexiph armies. A decoction of A.fcetida is used in Mexico for washing ulcers. The Aristolochias of Europe and the Mediterranean region, to which the exotic species are now preferred, are A. rotunda, long a , pallida, and crenulata, which grow in the south of Europe ; A. Mauritania, of Syria, and A. Clematitis, dispersed throughout France. Asarum europceum (Asarabacca) is an inconspicuous plant, growing in cool and shady parts of Europe ; its roots are bitter, nauseous and strcng-smelling ; they were formerly used as emetics, but have fallen into disuse since the discovery of Ipecacuanha. The leaves reduced to powder furnish a good sternutatory. A. asarifoliumis similarly used in America. A. canadense is also frequently used here as an emmenagogue, and from its ginger- like smell is used to flavour wines and food. CCIX. RAFFLESIACE./E. 709 CCIX. RAFFLE SI A CEJE, Br. (RaFFLESI^E, HyDNOKEvE, CYTINE/E, ApODANTHE^E.) Apodanthes Ingcc. Farasitic on a Leguminous plant. Hydnora (\fricana. Flower laid open (mag.). Cytinus Ifypocistis. Apodmthes. Flower cut transversely (mag.). Apodanthes. Ovule (mag.). 710 CCIX. RAFFLE SI ACE2E. Cytinus, Tart of ovary cut trans- versely (mag.)* Cytinus . Diagram 9. Rafflesia Arnoldi . Seed (mag.). Raffiesia. Partial section of the seed, showing the undivided embryo (R. Brown) (mag.). Parasites on the roots and sometimes on the branches of dicotyledonous plants. Perianth monophyllous, regular. Corolla 0, or rarely Ypetalous (Apodan these). Anthers go , 1- [rarely 2-3-) seriate (Apodanthese) . Ovary 1- celled , with several many- ovuled placentas ; ovules orthotropous, sometimes sub-anatropous. Fruit indehiscent, many -seeded. Embryo undivided, albuminous or not. Tribe I. RAFFLESIEJE. Flowers 5 or dioecious. Perianth 5-10-fid. sestivation imbricate (Rafflesia, Sapria), or valvate ( Brugmansia ) ; anthers 1 -seriate, adnate under the dilated top of a staminal column [synema), and opening by a single or double pore. Ovary with confluent or distinct many-ovnled placentas. Pericarp semi-adherent or free, fleshy. Seeds recurved, funicle dilated at the top. Embryo albuminous, axile, shorter than the albumen.— Parasites on the roots of Vines. Flower sub-sessile, bracts imbricate. GENERA. Rafflesia. Sapria. Brugmansia. Tribe II. HYDNOREAE. Flowers . Perianth 3-fid, sestivation valvate. Stamens inserted on the periantli-tube ; anthers numerous, dehiscence longitudinal, united into a 3-lobed ring, of which each lobe is opposite to the perianth-segments. Ovary inferior ; stigma sessile, depressed, of 3 lobes formed by apposed lamellae, distinct to the cavity of the ovary, where they become placentiferous ; placentas pendulous from the top of the ovary, sub-cylindric or branching, everywhere covered by very numerous orthotropous ovules. Fruit fleshy. Embryo globose in the axis of a cartilaginous albumen. — Parasitic on the rhizomes of Euphorbia in South Africa. GENUS. Ilydnora. Tribe III. CYTINEJE. Flowers diclinous. Perianth 4-8-fid, aestivation imbricate. — f : Stamens double the number of the calyx-lobes, united into one bundle; anthers 1-seriate at the top of the synema, with 2 apposed parallel ? cells, dehiscence longitudinal. ? : Ovary inferior, 8-16 celled above, but 1-celled below; placentas distinct, parietal, in CCX. JUGLANDEiE. 711 pairs, lobed ; style solitary ; stigma with radiating lobes. Fruit a berry, or sub- coriaceous, pulpy within. Embryo exalbuminous, undivided, homogeneous. Para- sitic on Cistus in the Mediterranean region, and on the roots of other plants in America and South Africa. GENUS. Cytinus. Tribe IV. AP0DANTHE2E. Flowers dioecious. Calyx 4-fid or -partite, imbricate in aestivation and persis- tent. Corolla of 4 deciduous petals. S' : Anthers placed below the dilated top of the staminal column, 2-3- seriate, sessile, 1-celled. Ovary adherent, many-ovuled ; ovules orthotropous, scattered through the cavity; stigma capitate. Fruit a berry, inferior. Embryo exalbuminous, undivided, homogeneous. — Parasitic on the stem and branches of dicotyledonous plants, never on the roots. GENERA. Apodanthes. Pilostyles. Itafflesio and Brugmamia belong to the Indian Archipelago. Sapria inhabits the shady forests of the extreme eastern Himalaya. Hydnora grows in Africa and South America. Cytinus principally inhabits South Africa and tropical North America; one species (C. Hypocistis') belongs to the Medi- terranean region. Apodanthes and Pilostyles occur in America on the stems and branches of several I.rpuminosrr (Adesmia, Baithinia, Cattiandrd). Some species are remarkable for their gigantic flowers; t hat of llaffh dn Amoldi springs directly from the roots of Cissus angustifolia, expands on the surface of the earth, and attains nearly .3 feet in diameter. The perianth is 5-fid, spreading, and the throat bears an annular crown ; its pink colour and scent of meat attract the flies, which thus become aids to its fertilization. Cytinus contains, besides gallic acid and tannin, two colouring principles and a matter analogous to ulmine. From the herbage and fruit is obtained an extract called Hypocistis juice ; it is blackish, acidulated, astringent and harsh in taste ; it was known to the ancients, and is still used in the south of Europe for bloody flux and dysentery. The buds of Jl. Patina are used in Java for uterine haemorrhage. Bruymansia also possesses powerful styptic properties. [The rhizome of Hydnora is used by the Hotten- tots for tanning their fishing nets, &c.] CCX. JUGLANDEIE. (Juglande.e, D.C. — J uglandinE/E, Dumortier. — JuGLANDACEiE, LindL, Casim. D.C. Flowers diclinous, spiked. $ : Perianth single , 6-2-3 -lobed, or 0. Stamens 3- x , inserted at the lose of the perianth, or of the bract. $ : Perianth superior, 4— 2 -toothed. Ovary inferior, 1-celled ; ovule solitary, erect, orthotropous. Fruit fleshy, dehiscent or not. Nut septate. Seed exalbuminous-, cotyledons fleshy, oily, 2-lobed. — Stem woody. Leaves alternate, pinnate, exstipulate. Treks or shrubs with watery or resinous juice ; buds 2-3, superimposed in the same axil, foliaceous or scaly, sessile, or stipitate before the leaves unfold. Leaves alternate, exstipulate, impari- rarely pari-pinnate, glabrous pubescent tomentose or with scattered discoid hairs ; leaflets membranous or coriaceous, not punctate. 712 CCX. JUGLANDEiE, ■Walnut. ( Juglans regia.) $ catkin. Walnut. 2 catkin. Walnut. $ flower (mag.) Walnut. Stamen (mag.). w , * Walnut. Walnut. Embryo separated Seed cut transversely. from itg cotyle. dons, to show the plumule. Walnut. Fruit deprived of its skin. Walnut. Seed, entire and cut vertically. Engelhardtia spicata. Young fruit. Plalyearpa slrobilacea. 2 strobilus. Platacarya. Pistil, entire and cut vertically (mag.). Pterocarya f raxini folia. Fruit. CCX. JUGLANDEiE. 713 Inflorescence indefinite, 1-sexual (when the 3 are in axillary catkins, and the $ in terminal or axillary spikes), or 2-sexnal (when they are in a catkin terminated by the g). Flowers monoecious, $ small: perianth sing-le, adnate to the inner face of a bract, which is 6-lobed, or 2-3-lobed, or obsolete. Stamens 3-36, inserted at the base of the perianth or bract, 2-several-seriate ; filaments very short, free or coherent at the base ; anthers 2-celled, glabrous or pubescent, dehiscence longitu- dinal, connective usually prolonged beyond the cells. Ovary rudimentary or 0. — Flowers $ : Bract more or less united to the flower, or free. Receptacular cupule (calyx of authors) more or less adnate to the ovary, 3-oo -toothed at the top, or forming a bi-acteal involucre. Perianth (corolla?) sometimes with 4 teeth, of which the 2 antero-posterior are exterior in aestivation, the anterior often largest and bracteiform ; sometimes with 2 lateral teeth adnate to the ovary. Ovary inferior, 1-celled, at length imperfectly 2-4-celled at the base and top ; style short; stiymas usually 2, rarely 4 ; placenta central, very short, bearing an orthotropous erect sessile ovule. Fruit sometimes fleshy or membranous, indeliiscent or bursting irregularly or 4-valved ; endocarp free or united to the pericarp, indeliiscent or 2-3-valved, with cartilaginous septa forming 2-4 imperfect cells at the base and top ; endocarp and septa chambered. Seed exalbuminous ; testa membranous ; evdoplcura very thin. Embryo fleshy and oily, 2-lobed, cerebriform or cordate at the base ; radicle very short, superior ; plumule often 2-phyllous, usually showing the rudiments of small buds. GENERA. * Juglans. ’Carya. * l’terocarya. Engelhard tia. * Platycarya. Jnglandrtr, which only comprise about thirty species, are very near Myricem (which see) ; they are also connected with Tercbinthaceee, through Pistada, but Terebinth aceee differ in their inflorescence, in having petals, a free ovary, and curved ovule. Juylandece approach Cupuliferee and Betulaccce in their amentaceous inflorescence, diclinism, apetalism, exalbuminous seed, woody stem, and alternate leaves. They are separated by the structure of the fruit and ovule, the pinnate exstipulate leaves, and the aromatic principle. Juglans anTl Carya are North American, but the most remarkable species (J. regia), as well as Pterocarya, inhabits the southern provinces of the Caucasus [and Juglans the Himalayas]. Engelhardtia i-» especially tropical Asiatic, Platycarya Chinese. The common Walnut (./. regia), a native of Persia [and the Himalayas , and introduced into Greece and Italy some centuries before our era, is now culti- vated throughout temperate Europe. Its wood is much sought by cabinet-makers and armourers for gun-stocks. Dyers also obtain a blackish-brown dye from it. All parts of the plant possess a peculiar scent, tolerably pleasant, but giving headache to thoso who remain long in its shade in hot weather. The pericarp contains a volatile oil (from which a tincture is prepared), associated with tannin and citric and malic acids, whence its use as an astringent, tonic, and stimulant. The leaves possess analogous qualities. The seed is edible; it contains an agreeable fixed oil, which quickly becomes rancid. The wood of J. nigra is more highly valued than that of J. regia , on account of its violet-black colour. The bark of J. cin err a is used as a purgative in America. The seeds of Carya are edible, except those of C. amara; but the latter (which is intensely bitter), mixed with oil of camomile, is considered efficacious in obstinate colics. J. cinrrea yields the Putter-nut; J. nigra , the Black Walnut; Carya olh-eeformis, the Pekan- nut ; C. alba and nigra, the Ilickory-nut ; and C. glabra, the Pig-nut — all of North America. Engelhardtia contains an abundance of resinous juices. E. spicata attains a height of 1G0 to 230 feet, and its trunk becomes so large that three men with arms extended can scarcely touch around it. Its russet-coloured wood, hard and heavy, is used for cart-wheels in Java, and for vases the diameter of which is sometimes enormous. 714 CCXI. CUPULIFERiE. CCXI. CUPULlFERyE. (Castanejb, Adanson. — Amentacearum pars, Jussieu. — Cupulifer^e, Richard, Endlicher. — Quercin^e, Jussieu. — Quercine^e et Fagine^e, Dumortier.) Chesnut. 9 and J catkins Oak. Fruit cut vertically. Chesnut. ( Castanea vesca.) Fruits and involucre, each spine of which represents an abortive branch, situated in the axil of a foliaceous scale. Chesnut. 9 flower (mag.). Beech. ( Fagus sylvatica.) Oak. ( Quercus Robur .) filberts : those of Pyrularia pubera, which grows on the mountains of Carolina and Virginia, yield a fixed and edible oil. CCXV. GRUBBIACEIE} (Ophirace-'E, Arnott. — Grubbiace^e, Alph. D.C.) [Flowers 5 , in a cone, involucrate. Perianth-segments 4, superior, valvate. Stamens 8, inserted at the bases of the segments; anthers opening by valves. Ovary This order is omitted in the original. — Ed. 726 CCXYI. BALANOPHORE^E. inferior, at first 2, then 1 -celled ; style short-, stigma simple or 2 -lohed ; ovules soli- tary in each cell, pendulous ; nucules 4, laterally connate, 1 -seeded. Embryo straight, in a fleshy albumen-, radicle superior. — Shrubs. Leaves opposite, exstipulate. Shrubs with the habit of Phylica and Bruniacece. Leaves opposite, linear- lanceolate, quite entire, margin revolute ; stipules 0. Inflorescence in cones in the axils of the upper leaves, subtended bj 2 lateral bracts. Flowers $ . Perianth superior, of 4 caducous ovate-acute segments, hairy externally, valvate in aestivation . Stamens 8, slightly adherent to the bases of the segments, 4 alternate rather longer than the others ; filaments ligulate ; anthers adnate, erect, 2-celled, cells dehiscing longitudinally by valves. Ovary inferior, capped by an annular disk, 2-celled when young, 1 -celled afterwards by the rupture of the septum, which remains on a central placenta ; style short ; stigma truncate or 2-lobed ; ovules 2, ovoid, compressed, one in each cell or on each side of the central free septum, pendulous from its summit, anatropous. Nucule crowned by the style and alveolar disk, 1-seeded. Seed inverse, sub-spherical, bearing the remains of the septum and undeveloped ovule on one side ; albumen fleshy. Embryo straight, cylindric, almost as long as the seed ; cotyledons short, appressed ; radicle long, cylindric, superior. ONLY GENUS. Grubbia. A family of one genus, whose affinity is rather obscure. It has been appended to Bruniacece by Decaisne, Lindley, and Arnott, and to Hamamelidece by Gardner ; but is probably nearer Santalacece, as Endliclier has pointed out, a point that cannot be settled till the structure of the ovule is known. Brongniart and A. de Candolle regard it as intermediate between Bruniacece and Santalacece. Grubbia is a native of South Africa, where three species have been discovered; they are of no known use. — Ed.] CCXVI. BALANOPEOREJE, L.-C. Richard. Cynomo / him coccineum. Plant growing on the flat ends of a root of Sal sola. I -6th natural size. CCXVI. BALANOPHOREiE 727 Cynomorium. £ flower with 6-phyHons perianth, laid open, showing an abortive style (mag.). Cynomorium. Q flower, nearly ripe, with 4-phyllous perianth (mag.). Cynomorium . Q flower, with 3-phyllous perianth (mag.). Cynomorium. Fruit cut longitudinally, showing the embryo at the base of the albumen, the inferior micropyle, and the chalaza at the opposite end. Parasitic herbs, flesh y, aphyllous, monoecious or dioecious. Scapes naked or scaly . Flowers in a capitulum. Perianth usually S-lobed. Stamens 3 {rarely more or less), inserted on the perianth. Ovary inferior, 1-celled-, ovule pendulous, orthotropous. Albumen fleshy. Embryo undivided. Fleshy herbs ; rhizome liypogeous, sub-globose, or branching and creeping, parasites on the roots of other plants. Scapes simple or branched, bearing flowers throughout, or sterile at the base, nalied, or furnished with scales replacing the leaves, and often bearing at the base bracts, a ring, or a volva or cup, which at an early stage encloses the inflorescence. Flowers monoecious or dioecious, rarely polygamous ( Cynomorium ), sessile or sub-sessile, in a globose oblong or cylindric [simple or branched] capitulum; the $ and £ sometimes indifferent inflorescences, sometimes in the same, often mingled with peltate scales and rudiments of arrested flowers. Perianth single, 3 G-pliyllous, or 3-lobed, or tubular, campanulate, or 2- labiate, aestivation valvate or induplicate [sometimes 0]. — Flowers $ : Stamens usually 3, rarely more, sometimes 1 {Cynomorium), opposite to the sepals, inserted at their base when they are free, and then distinct, or on their tube when monadelphous ; anthers l-2-oo -celled, introrse or extrorse, dehiscence longitudinal or apical.— Flowers $ : Ovary inferior, 1- (rarely 2-) celled ( Helosis ) ; style filiform ; stigma ter- minal, sometimes sessile ; ovules solitary, erect or pendulous from the top of the cell, and orthotropous. Fruit dry, coriaceous. Seed inverted ; testa crustaceous ; albu- men flesh v. Embryo minute, globose, undivided, near to or distant from the hilum. [The following is a slight modification of Eichler’s arrangement of the genera in Mart ius’ ‘ Flora of Brazil.’ Tribe Cynomoriece, which I have added, he considers as not belonging to Balanophorew, but to be near Gunneraceoe ; whilst the rest of the order he refers to the neighbourhood of Santalacew. 728 CCXYII. PIPERACEiE. Tribe I. CynoMORIE*. — Flowers 5 or unisexual by arrest, with a distinct perianth, superior in tlie ?, sometimes 0 in the $ . Stamens free. Anthers 2-celled, dehiscence longitudinal. Ovary 1-celled ; style single ; ovule solitary, pendulous. Cynomorium, Mystropetalum , Dadylanthus. Tribe II. Eubalanophore®. — Perianth of the $ 3-6-lobed, of the 5 0. Stamens monadel- phous ; anthers extrorse. Ovary 1-celled ; style 1; ovule pendulous, anatropous. Balanophora. Tribe III. Langsdorffie®. — Perianth of the $ 3-lobed or of a few scales, of the ? tubular. Stamens monadelphous ; anthers extrorse. Ovary 1-celled ; style 1; ovule 1, erect. Langs- dorjjia, Thonningia. Tribe IY. Heloside®. — Perianth of the A 3-lobed or tubular or campanulate, of the 2 0. Stamens monadelphous; anthers connate, bursting at the top. Ovary 1-celled; styles 2; ovule 1, erect. Helosis, Phyllocoryne, Sphcerorhizon, Coryncea, Bhopalocnemis. Tribe Y. Scybalie®. — Perianth of the $ 3-lobed^ of the £ 0. Stamens monadelphous ; anthers extrorse. Ovary at first 1-celled ; styles 2 ; ovules 2, pendulous from an apical placenta which descends and divides the cell into two. Scybalium. Tribe YI. Lophophyte®. — Perianth of $ and ? 0. Stamens 2, free. Ovary and ovules as in ScybaliecB. Lopliopliytum, Ombrophytum, Latlirophytum. Tribe VII. Sarcophyte®. — Perianth of $ 3-lobed, of ? 0. Stamens 3, free ; anthers many-celled. Ovary at first 1-celled; stigma sessile; ovules 3, pendulous from an apical placenta that descends and divides the cell into three. Sarcophyte. — Ed.] The parasitism of B'alanophorec s, the anatomical structure of their tissue, composed of cells crossed by rayed scalariform vessels, and the nature of their seeds, connect them with Cytmeee and Rafflesiaceee ; 1 hut they differ in habit, inflorescence, and the composition of their ovary. They have also some analogy with Gunneracece in diclinism, apetalism, inflorescence, oligandry, the inferior 1-celled and 1-ovuled ovary, the pendulous ovule, albuminous seed, undivided embryo, and astringent property. They differ in parasitism, the absence of leaves, &c. Balanophorece principally inhabit the intertropical region of both worlds, but are not abundant any- where ; one species alone ( Cynomorium coecineum), the analysis of which we have taken from the learned memoir of Weddell, grows on various plants of the Mediterranean shores. Another (Dadylanthus) inhabits New Zealand. Mystropetalum and Sarcophyte inhabit South Africa. The third, fourth, fifth, and sixth tribes are all American, except Rhopalocnemis, which is tropical Asiatic, and Thonningia, which is tropical African. The properties of Balanophorece are more or less astringent. Cynomorium coccineum, the Fungus mditends [of the Crusaders], has an astringent and slightly acid taste. Its reddish juice was formerly pre- scribed as an infallible styptic for haemorrhage and diarrhoea. In Jamaica Helosis has a similar reputation. Sarcophyte, a Cape species, exhales a foetid odour, as do several others. Ombrophytum, which grows in Peru with marvellous rapidity after rain, is named hy the inhabitants Mountain Maize ; they cook the scape, and eat it like mushrooms. [Candles are made from a peculiar hydrocarbon contained in a Javanese Balanophora.) CCXVII. PIPERACEEE, L.-C. Richard. Flowers $ or dioecious, achlamydeous. Stamens 2-3-6-oo . Ovary 1-celled, 1-ovuled ; ovule sessile, basilar, erect, ortliotropous. Berry nearly dry. Albumen deshy, dense. Embryo antitropous, apical, included in the eriibryonic sac; radicle superior. Annual or perennial herbs, usually succulent, or shrubs. Stems simple or 1 I regard them as having no affinity whatever with Rafflesiaceee. — Ed. CCXVII. PIPERACEiE 729 Peperomia magnoliecfoUa. Piper nigrum. Macropiper oblongum. Renealmia. Arillate seed. Renealmia. Vertical section of seed. Renealmia. Transverse section of seed, on a level with the embryo. Alpinia. Flower. Renealmia sangitinolenla. Dehiscent fruit. Alpinia. Flower cut vertically. Iledychium Gardnerianum. Diagram. A . Axis ; B. Outer bract ; C. Inner bract ; D. Shoot ; e. Sepals ; /. Petals ; g, g', g', Outer staminodes ; h,h, Inner staminodes ; i. Fertile stamen. 762 IV. MUSACEvE. protruded through the vitellus, prolonged beyond the albumen, and reaching to the hilum. PRINCIPAL GENERA. * Globba. Trilophus. * Alpinia, * Roscoea. Diracodes. Colebrookia. Achasma. * Hedychium, Ceranthera. Stenochasma. * Renealmia. Zingiber. * Amomum. Piperidium. Curcuma. * Elettaria. * Gastrochilus. Kaempferia, Ilitchenia. Donacodes. * Costus. We have indicated the close affinity between Zingiberacece, Cannacece, and Musacea under the latter families. Zingiberacece are for the most part tropical, and especially Asiatic ; they are rare in the sub- tropical regions of Japan, as well as in equinoctial Africa and America [but very abundant in tropical Africa]. The root of Zingiberacece contains various volatile oils, an aromatic resin, a bitter principle, a more or less abundance of starch, and sometimes a yellow colouring matter ( curcumine ). The odoriferous prin- ciples which abound in the roots are also found in the fruits, but are [usually] scarcely perceptible in the herbage. The root of Ginger ( Zingiber officinale'), introduced from India into the Antilles by the Spaniards, has an acrid pungent taste and a strongly aromatic scent ; it is considered in India to be anti- scorbutic and aphrodisiac. Many European doctors recommend it as a powerful stimulant, for which reasdn it enters into the composition of an English beer (Ginger beer) much used in North Europe. It is equally valued as a condiment, preserved in sugar. The roots of Galanga, the origin of which is some- what obscure, and the use of which is nearly given up, are furnished in India by different species of Alpinia. Zedoary is the produce of Curcuma Zeduaria and Zerumbet. From the root of C. leucorhiza and angustifolia an arrowroot is obtained, but it is charged with a yellow matter, and much inferior to that of Maranta. The roots of Costus, formerly renowned in Europe, have now fallen into disuse, although their great bitterness causes them still to be used in India as a tonic. It is the same with the roots of several Curcuma and Kcempf evict , commonly called Terra-merita [Turmeric], Indian Saffron, &c., which contain a very abundant yellow colouring matter, more useful in dyeing than in medicine [and which form a principal ingredient in Curries]. The fruits of Amomum, called Cardamoms, are employed as a condiment, and esteemed for their stomachic properties. Maniguette [Meliguetta], or Grains of Paradise (A. Granum-paradisi), a Guinea species, is used, with several of its congeners (A. citriodorum, &c.), to add strength to vinegar, and to adulterate pepper [and spirits]. The Peruvians, according to Poppig, apply the odoriferous leaves of Beneulmia as a topic for rheumatic pains. IV. M USAGE aE. (Musa:, Jussieu. — Musacea:, Acjardh.) Flowers 5 . Perianth superior, petaloid, irregular, 6-merous, 2-seriate. Stamens 6, of which 1 or more are usually imperfect. Ovary inferior, ‘6-celled, l-many-ovuled ; ovules anatropous. Fruit fleshy, indehiscent, or sub-drupaceous with loculicidal or septicidal dehiscence. Seed albuminous ; radicle inferior or centripetal. — Herbs. Leaves alternate, sheathing, midrib giving off laterally simple and parallel secondary nerves. Herbs, often gigantic. Stem or scape enveloped by the thick and persistent sheathing bases of the petioles, simple, sometimes appearing as an arborescent trunk, sometimes very short or 0. Leaves alternate, petioled, simple, entire, con- volute in vernation ; limb usually elongated, sometimes arrested ; midrib thick, giving off laterally transverse or oblique secondary nerves, parallel, very close, a IV. MUSACEiE. 7C3 //< liconia Blind. Entire plant. o Helieonia metallica. Transverse section of base of flower. Helieonia formosa. Lower portion of the flower cut vertically. Helieonia metallica. Abortive stamen. Helieonia formosa. Ovule (mag.). Helieonia metallica. Flowers. Urania guianensis. Seed, with hairy aril (mag.). Urania guianensis. Seed, with hairy aril, cut vertically (mag.). 764 IV. MTJSACEiE, Urania guianensis. Embryo (mag.). Musa Ensete . Seed seen from below. Musa Ensete, Fruit. Banana. {Musa sinensis .) Ravenala Ravenala madagascariensis . madagascariensis. Seed cut vertically Seed (mag.). (mag.). Musa Ensete. Transverse section of seed, showing the pit of the hilum (mag.). Ravenala madagascariensis. Embryo (mag.). IV. MUSACEiE. 765 little incurved at the tips. Flowers $ , irregular, sessile, or pedicelled, in the axil of a spathe ; peduncles radical or axillary, furnished with inflated sjjathelike coloured distichous or alternate bracts. Perianth epigynous, petaloid, of six 2- seriate often dissimilar segments, one of the outer anterior usually very large, often keeled, 2 of the inner lateral often smaller, the third posterior, always minute, labelliform ; segments all distinct ( Ravenala , Heliconia), or variously coherent; some- times the 2 inner lateral united into a tube split behind, and enclosing the stamens ( Strelitzia ) ; sometimes the 3 outer and the 2 lateral inner form a tube split behind, and 5-lobed at the top (Musa). Stamens 6, inserted at the base of the perianth- segments, the posterior opposite to the labelliform segment usually imperfect, as are sometimes several of the others ; filaments plane, free ; anthers introrse ; cells 2, sub- opposed, elongated and adnate to a connective which is prolonged into a point or membranous appendage, dehiscence longitudinal ; pollen globose. Ovary inferior, cells 3, opposite the inner perianth-segments ; style simple, cylindric ; stigma with 3 linear lobes, papillose on their inner face, or concave, obscurely 6-lobed ; ovules solitary and basilar in each cell, or numerous and 2-several-seriate at the central angle of the cell, anatropous. Fruit umbilicate, with 3 1-many-seeded cells ; sometimes fleshy, indeliiscent, with numerous seeds buried in the pulp (Musa), some- times sub-drupaceous, with a fleshy coriaceous epicarp and bony endocarp ; dehis- cence either by loculicidal many-seeded valves (Strelitzia, Ravenala), or into 3 septicidal 1 -seeded cocci (Heliconia). Seeds ovoid [or cubical or angled], fixed by one end or by the centre ; funicle obsolete, or dilated into a fleshy membranous laciniate or hairy aril ; testa coriaceous, hard, smooth or rugose ; albumen fleshy, farinaceous. Embryo straight, oblong-linear or fungiform ; radicular end perfora- ting the albumen, reaching the hilum, inferior or centripetal. PRINCIPAL GENERA. Heliconia. Musa. Strelitzia. Ravenala. Mmacea approach Cannacca and Zingiberacea in the structure of their stem, the nervation of their leaves, the 3-celled inferior ovary, and the albuminous seeds; they are distinguished by their 2-seriate perianth without staminodes, the number of their normal stamens, and the absence of aromatic principles. They are especially distinguished from other epigynous Monocotyledons by their habit, irregular flower, and the nature of their sometimes spathaceous bracts. Heliconia inhabits tropical America, Urania the tropics of the Old World, Strelitzia South Africa, Ravenala Madagascar; Musa, natives of the Old World, were transported to America before its discovery bv Europeans, and are now dispersed throughout the tropical and sub-tropical zone. Musa< ecr, which, by their elegant habit and the beauty of their flowers and foliage, are amongst the greatest ornaments of the tropical Flora, are further eminently useful to the inhabitants of those climates. The Bauana and Plantain fruits (Musa paradisiaca and sapientum) afford an agreeable sweet farinaceous food and a refreshing drink. The pith of the stem, the top of the floral spike, and even the shoots of several species are eaten as vegetables. The culture of these valuable plants is not less important in the tropics than that of cereals and farinaceous tubers in temperate regions. The variety of food furnished bv Bananas in different stages of ripeness is the admiration of travellers. Cultivation has produced nume- rous varieties of form, colour, and taste. Humboldt and Boussingault have estimated that, under good cultivation, a Banana plant will produce on an average in one year three bunches of fruit, each weighing • 44 lb. ; these would yield for every 3 acres, in hot climates, 404,800 lb. of Bananas ; and in countries on the limits of its culture 140,800 lb., an amount far exceeding the maximum yield of our tuberous plants, which are, besides, much less nutritious than an equal weight of Bananas. 766 Y. BROMELIACEiE. The petioles of Bananas, and especially those of the Abaca {Musa te.vtilis), are formed of very tenacious fibres, of which the natives make thread and textile fabrics; they also use the blade of the leaves to cover their huts. Ravenala madagascariensis is the finest species of the family ; its popular name of Traveller’s-tree is due to the reservoir formed by the leaf-sheaths, in which a limpid and fresh water collects, which may be obtained by piercing the base of the petiole [probably the rain-water which falls on the blade and is conducted by the grooved midrib to the sheathing petiole]. The inhabitants of Madagascar cook its bruised seeds with milk, and prepare a broth from them ; the pulpy aril of the seed, remarkable for its magnificent blue colour, yields an abundant volatile oil. The juice of Musa Ensete is considered in Abyssinia a strong diaphoretic [the succulent interior of the stem is eaten ; not the fruit, which is small, dry, and full of very large seeds]. Y. BROMELIACEIE. (Bromelie^e, A.-L. de Jussieu. — Bromeliace^e, Lindl. — Bromelbe et Tillandsle, A dr. Jussieu.) Flowers $ . Perianth G-merous, 2-seriate, the exterior calycoid, the inner petaloid. Stamens 6, epigynous, perigynous or hypogynous. Ovary inferior or semi- inferior or superior, 3-celled. Berry indehiscent, or capsule 3-valved. Seeds albu- Pine-apple. (Ananassa sativa.) Spike terminated by a crown of leaves. Pine-apple. Pine apple. Pine-apple. . Flower. Petal and stamen. Calyx and pistil. Dyckia remotiflora. Fruit. Dyckia. Vertical section of seed (mag.). Pine-apple. Transverse section of ovary. Dyckia . Seminiferous valve ; discoid seeds. Y. BROMELIACEiE. 767 Bromelia Caralas. Fruit. TUlandiia, Seed with testa decomposed into bristles (mag.). Bromelia. Transverse seotion of fruit. Bromelia. Vertical section of seed (mag.). Tillandsia. Seed cut vertically (mag.). Billbergia zebrina. Fruit. Billbergia. Transverse section of fruit. Billbergia. Vertical section of fruit. Pitcairnia magnifica. Seed. Billbergia. Embryo (mag.). minous, often bearded. Embryo small, axile, outside the albumen. — Usually herbaceous plants. Leaves sheathing. Herbaceous, sometimes woody plants, generally stemless, with perennial stock and fibrous roots, mostly epiphytes. Leaves usually all at the base of the stem or scape, sheathing, stiff, channelled, margin often toothed or spinous, epidermis clothed with scaly hairs. Flowers 5 , regular or sub-irregular, spiked, racemed or panicled, and each with a scarious or coloured bract. Perianth quite inferior, semi-superior 768 Y. BROMELIACEiE. or superior, 6-partite, 2-seriate ; outer segments [calyx) herbaceous, the 2 posterior usually coherent, the third anterior, sometimes shorter, imbricate or rarely valvate in aestivation; inner segments petaloid [corolla), more or less coherent, usually furnished within at the base with a scale or nectariferous crest, spirally twisted in aestivation, or rarely valvate, marcescent, and again twisted in age. Stamens 6, epigynous, perigynous, or hypogynous ; filaments subulate, usually dilated at the base, free or connate, and more or less adnate to the inner perianth-segments ; anthers introrse, 2-celled, basi- or dorsi-fixed, erect or incumbent, dehiscence longi- tudinal. Ovary either completely superior [Dyckia), or semi-inferior [Pitcairnia) , or inferior [Ananassa, Billbergia, &c.), 3-celled ; style simple, 3-gonous, sometimes 3-partite ; stigmas 3, simple, or rarely 2-fid, sometimes fleshy or petaloid, straight, or spirally twisted ; ovules anatropous, numerous, 2-seriate at the inner angle of the cells, horizontal or ascending, rarely definite and pendulous from the top of the central angle [Ananassa). Fruit a 3-celled berry or a septicidally 3-valved capsule, rarely loculicidal, endocarp usually separable. Seeds usually numerous, oblong [Guzmannia, Brocchinia), or linear [Pitcairnia, Tillandsia), or ovoid [Bromelia, Bill- bergia), or discoid ( Dyckia ); testa cellular [Pitcairnia), or fleshy [Ananassa, Billbergia), or suberose [Dyckia), or silky [Tillandsia), often obtusely acuminate at both ends; albumen farinaceous. Embryo placed outside the albumen, straight or hooked, radicular end near the hilum. PRINCIPAL GENERA. * Ananassa. * Billbergia. * Tillandsia. * Guzmannia. * Bromelia. * Acanthostachys. * Quesnelia. * Byckia. * zEchmea. ’Pitcairnia. * Caraguata. Pourretia. Bromeliacece, in being epigynous, perigynous or hypogynous, are intermediate between Monocotyledons with a free, and those with an adherent ovary. Brongniart has placed them in the class of Pontederiacece, which they approach in the herbaceous stem, sheathing radical leaves, flowers in a spike or raceme, bracteate 2-seriate perianth, superior or semi-adherent 3-celled ovary, loculicidally 3-valved capsule, and farinaceous albumen; but Pontederiace ce jare separated by their completely petaloid perianth, the ovary-cells either unequal or reduced to one, the solitary ovule pendulous- from the top of the fertile cell, and the axile and included embryo. On the other hand, Bromeliacece are near Hcemodoracece, which differ in their equitant distichous leaves, their wholly petaloid perianth, their stamens, of which three only are fertile, their undivided stigma, their not farinaceous albumen, &c. Bromeliacece are all American, where most are epiphytes in tropical forests ; they are much rarer in hot extra-tropical regions. The fruit of the baccate Bromeliacece contains citric and malic acids, to which it owes astringent medicinal properties. The ripe berries of some abound in sugar, which gives them an exquisite flavour. The Pine-apple (Ananassa), the most important species, has been introduced into Asia and Africa. The fruit consists of a dense spike of connate fleshy berries and bracts, forming together an ovoid or sub-globose syncarpous compound fruit, which is seedless through cultivation, and crowned by a tuft of leaves. When ripe it is full of an acidulous perfumed sugary juice, and is considered one of the most delicate of fruits; but when unripe the juice is acid and acrid, and much esteemed in the Antilles as a vermifuge and diuretic. Bromelia Pinguin and several other species possess the same properties. Tillandsia usneoides [a very slender filamentous, much-branched species that hangs in hair-like masses from trees in the North-west Indies and southern United States] is used in America in the preparation of an ointment used in cases of haemorrhage ; its fragile and very long stems, deprived of their outer parenchyma, are employed for stuffing mattresses, under the name of ‘ vegetable hair;’ they are also remarkable for having no spiral vessels. Billbergia tinctona yields a yellow colouring matter, and the Pine-apple leaf an extremely beautiful silky fibre. VI. ORCHIDEiE. 7(59 YI. ORCllWEsE. (Orchides, Jussieu. — Orchideje, Br. — Orchidace^e, Lindl.) Perianth superior, irregular, 2-seriate. Stamens 1-2, gynandrous-, pollen- grains variously agglomerated. Ovary inferior, 1- celled, with 3 parietal placentas-, ovules numerous, anatropous. Seeds mvmerous, scobiform, exalbuminous. Embryo minute. — Stem herbaceous. Roots fibrous, often txdiercled. Leaves radical or alternate, sheathing, sometimes scale-like. Flowers usually in a spike or raceme. Orchis. Flower without the ovary (mag.). ST. Stigma ; R . Retinaculum ; L. Anther-cell ; Orchis. Pollen-masses and retina- culum (mag.). Orchis. Dehiscent fruit, leaving in their place the 3 median nerves of the carpels. Orchis. Portion of a pollen- mass (mag.). Orchis. Seed (mag.). A ceras anthropophora . 770 YI. ORCHIDEiE. Phalcenopsis amabitis. Neottia ovala. Flower seen in front (mag.). Oncidium Papilio. Bolbophyllum barbigerum. Flower. VI. 0RCHIDE2E. 771 IViaj/is grandifolius. ■Vanilla. Transverse section of fruit (mag ). Vanilla. Balsamiferous tissue of fruit. Vanilla. Seed (mag.). Fern amlczia' acuta. Diagram of fruit. Angrcccum. Diagram of fruit. Pleurolhalis clausa. Diagram of fruit. Angratcum. Doliisccnt 1-valved Fcrnandczia acuta. Dehiscent fruit. fruit. Pleurothallis clausa. Dehiscent fruit. Vanilla, Dehiscent fruit. Pleurothallis. Germinating seed (mag. 3 n 2 772 VI. ORCHIDEJE. Cltysis bractescens. Cypripedium. Gynostegium seen in profile. Miltonia. Germinating seed (mag.). Leptotes bicolor . Dehiscent fruit. Cypripedium. Diagram. Cypripedium. Leptotes bicolor. Sterile anther. Diagram of fruit. Perennial herbaceous terrestrial plants, or epiphytes, or parasites? ( Epipo - gium, Corallorliiza, Neottia Nidus-avis), sometimes sarmentose and furnished with adventitious roots (Vanilla), sometimes marsh plants ( Liparis , Malaxis ) ; rhizome creeping, or with fascicled fibrous roots, often accompanied with ovoid or palmate tubercles, caulescent or stemless ; leaves often connate at the base, and forming with the thickened stem an oblong swollen or flattened organ (pseudo -bulb). Stem or scape usually simple, cylindric or angular, often aphyllous, or furnished with scales. Leaves : the radical and lower cauline close together, the upper equitant, alternate or opposite, sheathing, glabrous, rarely velvety (Eria), fleshy or membranous, cylin- dric, linear or linear-lanceolate, usually entire or emarginate (Vanda), or flabelliform (Pogonia), or cordate (Neottia); nerves parallel, rarely reticulate (Ancectochilus), sometimes gemmiparous ( Malaxis paludosa, Spiranthes gemmipara). Flowers 2 , or imperfect by arrest, terminal, solitary or in a spike raceme or panicle, and bracteate, sometimes springing from the middle of a leaf (Pleurothallis) . Perianth superior, usually petaloid, irregular, formed of G 2-seriate free or coherent persistent or caducous leaflets ; the outer (sepals) 3, of which 2 are lateral and 1 inferior, usually becoming superior by the torsion of the pedicel or ovary ; the inner (petals) 3, alter- nating with the sepals, the 2 lateral similar, and the third (labellum) originally superior, then becoming inferior, usually dissimilar, larger, very various in shape VI. ORCHIDEiE. 773 and colouring, frequently hollowed at the base into a sac or spur ; limb of the labellum usually 3-lobed, sometimes entire ; disk naked, callous, glandular or lami- nate. Andrcecium and style adnate into a column (gynostegium), of which the anterior face, opposite to the labellum, and terminated by the stigma, belongs to the substance of the style, while the dorsal face, terminated by the anthers, belongs to the andrcecium. Stamens usually normally one, opposite the upper sepal, and accompanied by two rudimentary stamens, reduced to inconspicuous or obsolete p rom i nences, very rarely there are 2 normal stamens opposite to the 2 lateral petals ( Cypripedium ) ; anther 2-celled (or 1-celled by absorption of the septum) or 4-celled by more or less perfect secondary septa, sometimes divided or multilocellate by trans- verse septa, erect, or inclined and covered by the concave top of the gynostegium ( clinandrium ) ; pollen agglomerated into 2-4-8 masses (pollinia), lodged in the mem- branous pockets of the anther, and composed of grains usually collected by fours into numerous groups (masses), cohering by means of elastic filaments, or gathered round a cellular axis ; grains sub-pulverulent, easily separable or agglutinated into a solid compact waxy tissue ; pollen-masses sometimes free, usually fixed, either directly or by means of a cellular pedicel ( caudicle ), to a viscous gland ( retinaculum ) below the anther, naked, or enclosed in a membranous fold of the stylary surface (lursicula). Ovary inferior, 1-celled (more rarely 3-celled), of 3 connate carpels with parietal placentation, sometimes surmounted by a cupule (analogous to that of Santalacece)-, style confluent with the stamens, occupying the face opposite to the labellum, produced at the top into a prominence or fleshy beak ( rostellum ); stigmatic surface ( gynixus ) oblique, concave, viscous, composed, according to R. Brown, of 3 stigmas, usually confluent, but sometimes distinct and opposite to the sepals ; ovules numerous, shortly funicled, anatropous. Capsule membranous or coriaceous, cylindric, ovoid or winged, 1-celled, dehiscence very various, mostly by 3 semi- placeutiferous valves, which separate from the 3 persistent midribs of the carpels, the latter remaining united at the base and apex. Seeds very numerous, very minute; testa loose, reticulate, sometimes crustaceous and black (Vanilla, Cyrtosia ). Embryo exalbuminous, flesh}T. Tribe I. MALAXIDEAE. Pollen coherent in waxy masses, applied directly to the stigma, without acces- sory cellular tissue. Anther terminal or opercular. — Epiphytes, or rarely terrestrial plants ; pseudo-bulbs formed by the connate leaf-bases and thickened stem. PRINCIPAL CULTIVATED GENERA. Fleurothallis. Octomeria. Dendrobium. Polystacliia. Masdevallia. Malaxis. Eria. Oberonia. Dendrochylum. Aporum. Physosiphon. Calypso. Pedilonum. Lepanthes. Polbopbylluin. Stelis. Lipavis. Cirrhopetalum. Tribe II. EPIDENDREAE. Pollen cohering in defined waxy masses. Cellular membrane prolonged into elastic caudicles, often folded, without true glands. Anther terminal, opercular. — 774 YI. ORCHIDEiE. Usually epiphytes, caulescent or pseudo-bulbous, rarely furnished with fleshy PRINCIPAL CULTIVATED GENERA. Ccelogyne. Ponera. Barkeria. Cattleya. Evelina. Pholidota. Hexadesmia. Broughtonia. Schomburglda. Isochilus. Binerna. Chysis. Leptotes. Bletia. Diothonea. Sophronitls. Laelia. Spathoglottis. Epidendram. Phaj us. Tribe III. VANDEAE. Pollen cohering in defined waxy masses, fixed after flowering to a caudiole and retinaculum. Anther terminal, rarely dorsal, opercular. — Epiphytal, rarely terres- trial, caulescent (especially the American species), or pseudo-bulbous (especially the Asiatic). Leaves often einarginate at the tip. PRINCIPAL CULTIVATED GENERA. Eulophia. Pilumna. Grobya. Mormodes. Galeandra. Bichsea. Huntleya. Cychnoches. Cyrtopera. Fernandezia. Zygopetalum. Cyrtopodium. Lissochilus. Oncidium. Warrea. Notylia. Vanda. Ornithidium. Cirrhea. Renanthera. Odontoglossum. Maxillaria. Camarotis. Brassia, Bicrypta. Ornithocephalus. Saccolabium. Miltonia. Lycaste. Rodriguezia. Sarcauthus. Stanhopea. Camaridium. Burlingtonia. Giceoclades. Houlletia. Scapliiglottis. Jonopsis. Angrsecunt. Peristeria. Colax. Calanthe. Sarcadenia. Govenia. Galeottia. Phalaenopsis. Acanthophippiiuu. Gongora. Catesetum. Ansellia. Acropera. Aeriopsis. Ccelia. Trichopilia. Trigonidium. Tribe IV. OPHRYDEAE. Pollen composed of indefinite masses, united into 2 pollinia by an elastic cob- web-like axis, agglutinated to a retinaculum. Anther terminal, erect or reolinate, persistent, with perfect cells. — Terrestrial plants with tuberous roots. Orchis. Serapias. Holothrix, l’enthea. PRINCIPAL GENERA. Aceras. Satyriuin . Bartholina. Herschelia- Oplirys. l’latanthera. Bisa. Corycium. Gymnadenia. Bonatea. Bisperis. Habenaria. Nigritella. Pterygodium, Anacamptis. Peristylus. Schizodium. Tribe Y. ARETHUSE^J, Pollinia sub-pulverulent or formed of angular lobules, fixed by their base, or by a point below the top. Anther terminal, opercular. — Usually terrestrial stemless plants, or caulescent and sarmentose, some aphyllous and parasitic. PRINCIPAL GENERA. Limodorum. Cephalanthera. Cyathoglottis. Guebina. Sobralia. Vanilla.1 Caladenia. Corysanthes. Glossodia. Pterostylis. Microtis. Caleya. Asianthus. Pogonia. Chiloglottis. Chlorsea. ' Vanilla, with probably Gastrcdia, Epipogium, Erythorchis, Cyriosia, and some others, forms a very distinct tribe ( Vanillets) of Orchidece. — Ed. YI. ORCHIDEiE. 775 Tribe YI. NE0TTIE2E. Pollinia sub-pulverulent ; granules loosely coherent, fixed to a retinaculum. Anther parallel to the stigma, persistent, cells close together. — Terrestrial plants, with fascicled fibrous or tuberous roots, sometimes epiphytes, sometimes aphyl- lous, or parasites? resembling Orobanchece. PRINCIPAL GENERA. Pontlmuva. Prescottia. Listera. Neottia. Epipactis. Spirauthes. Stenorliynchus. Pelexia. Goodyera. Ansectochilus. Physurus. Zeuxine. Diuris. Orthoceras. Prasophyllum. Thelymitra. Tribe YII. CYPRIPEDIE M. Anthers 2, lateral, both fer- tile, the intermediate one peta- loid. Pollen granular, softening during fertilization. Stigma divided into 3 areolae opposite to the stamens. CULTIVATED GENERA. Cypripedium. Uropedium. Selenipedium. Orchidete, which form one of the most natural families of the Vegetable Kingdom, have taxed the sagacity of our most eminent botanists — Dupetit- Thouars,R.Brown, L. C. Richard, Blume, Liudley, &c. They are especially re- markable for the curiously varied shapes and colours of their perianth, which resembles most dissimilar objects — as a helmet, slipper, Hy, bee, beetle, a little monkey, &c. — and the relative sizes of which are sometimes extraordinarily dif- ferent ( Uropedium ). The andrcecium, which is gvnandrous, like that of Aris- toloc/iiea (page 705), the pollen agglo- merated into masses, as in Asclepiadea (page 553), and the undivided embryo, are all exceptional characters, which might render their position in the sys- tem doubtful, were it not that the structure of their stem, the nervation of their leaves, and the arrangement of their hexaphyllous and 2-seriate peri- anth, evidently place them among Mono- Cypripedium spectabile. cotyledons. Incomplete as their andrcecium appears, the ternary type of most Monocotyledonous families ma) )et be traced in it. According to the sagacious observations of It. Brown, it is composed, sometimes 776 VL ORCHIDE^J. of an outer whorl of three stamens represented by one normal anther and two rudimentary ones opposite to the sepals; sometimes of an inner whorl, equally triandrous, of which one stamen is arrested, and two are normal, opposite to each lateral petal, and alternating with the carpels. This ternary arrangement is confirmed by Apostasies , which are closely allied to Orchidece in their petaloid hexaphyllous 2-seriate irregular perianth, gynandrous androecium composed of three stamens one of which is often arrested, and which are only distinguished by their granular pollen and their 3-celled ovary. Orchidece also approach Burmanniacece in epigyny, 1-celled ovary, 3-valved capsule, and scobiform seeds ; and Cantiece in the inferior ovary, the perianth, and the androecium reduced to a single stamen. The floral structure of Orchidece sometimes presents a singularity equally remarkable and rare in the Vegetable Kingdom: we find on the same inflorescence dimorphous flowers ( Cychnoches ventri- cosum, Vanda Loioii , Spiculcea, Drahcea, See.) ; or even three different forms ( Catasetum , Myanthus, Cychnoches). In Orchidece, owing to the consistenee of their pollen, extraneous agency is required to ensure ferti- lization, which, as in Asclepiaclece, is effected by insects ; and in our hothouses, where these auxiliaries are wanting, fertilization must be artificially secured. In some species the lip is irritable ; it oscillates opposite the column {Megaclinium), or turns round it (Caleana) ; on an insect settling on the surface of the lip, the latter quickly approaches the column, and presses the insect against it, which in its efforts to disengage itself breaks up and crushes the pollen- masses, and spreads them over the stigma.1 Orchidece mostly inhabit tropical forests; they abound especially in the New World, where their numerous species generally grow on the trunks of trees, to which they attach themselves by their long adventitious roots ; but they are terrestrial in the temperate regions of the northern hemisphere ; they become rare near the pole, and Calypso borealis is the only one which reaches 68° north latitude. Malaxidecc inhabit the Indian continent and islands, and principally the Malay Archipelago ; they are less numerous in tropical America and the islands of South Africa ; they are rather frequent in Australia and the Pacific Islands, but rare in the northern hemisphere, and entirely absent from the Mediterranean region, temperate America, and the Oape of Good Hope. [Liparis, Malaxis, and Calypso are all European ; Liparis , Microstylis, and Calypso are temperate American ; Liparis and Polystachya are both South African.] Epidendrece nearly all belong to the tropical regions of the New World; some, however, inhabit the same zone in Asia ; a very few [many species of Ccelogyne ] are found in North India and near China ; one species only advances as far as South Carolina. Vandece are found in equal numbers in tropical Asia and America ; they are common in Madagascar, rare in Africa, and very rare beyond the tropics. Ophrydece inhabit all temperate and sub-tropical regions, especially Central and Mediter- ranean Europe, and South Africa ; they are rarer in the tropics. Neottiece principally grow in temperate Asia and Australia ; they are much less numerous within the tropic of Cancer, and very rare in Africa. Arethusece abound in south temperate regions, and especially Australia [and South Africa] ; they become rarer in the tropics and north temperate zone. Clilorcece extend as far south as the Straits of Magellan. Cypripcdiece inhabit the temperate and cool regions of the northern hemisphere ; they are somewhat frequent in America ; [and are spread over tropical Asia and its islands]. Orchidece are much admired for the singularity, beauty and scent of their flowers. Their cultivation, which usually requires a hothouse and extreme care, has during the last forty years become an absolute passion in Europe. Linnaeus, in the middle of the last century, knew but a dozen exotic Orchids, whereas at the present day about 2,500 are known to English horticulturists. Of the few Orchids which are of use to man, the Vanillas ( Vanilla clavicidata, planifoha, &c.) hold the first rank. They are sarmentose plants, natives of the hot and damp regions of Mexico, Colombia, and Guiana [and tropical Africa]. Their fruit is a fleshy long capsule, and the black globose seeds are enveloped in a special tissue which secretes a balsamic oil ; if kept in a dry place the capsule becomes covered with pointed and brilliant crystals of benzoic acid, and imparts its delicious perfume to various delicate dishes, chocolates, liqueurs, &c. The Faham (Angreecum fragrans) is a native of Bourbon; its leaves, known as Bourbon Tea, taste of bitter almonds and smell like Tonquin beans ; they are used to stimulate digestion, and in pulmonary consumption. Balep, which is imported from Asia Minor and Persia, is produced by the tubers of several species of Orchis, which are equally natives of Europe 1 For an account of the phenomena of Orchid fertilization, see Darwin 1 On the Fertilization of Orchids. Ed. VIII. BURMANNIACEiE. 777 (O. mascula, Mono, militaris , maculata, See.'). Salep contains in a small volume an abundance of nutritive starch, associated with a peculiar gum, analogous to Bassorine ; it was formerly considered a powerful analeptic ; it is now used as a sweet, scented jelly, or mixed with chocolate. The root of Helle- borine (Epipactis latifolia ) is employed for arthritic pains ; those of Himantoglossum hircinum, Spiranth.es autumnalis, and Platanthera bifolia , are reputed to be aphrodisiac. The flowers of Gynmadmia conopsea are administered for dysentery ; and in North America the tubers of Arethma bulbosa are used to stimulate indolent tumours and in toothache. The root of Spiranthes diuretica is renowned in Chili. The rhizome of Cypripedium pubescens replaces the Valerian as an antispasmodic in the estimation of the Anglo-Americans. vii. apostasiaceae: [Perennial herbs. Roots fibrous. Stem rigid, simple or slightly branched, slender. Leaves cauline, sheathing, rather rigid, alternate, lanceolate, strongly nerved, nerves parallel. Flowers § , in simple or compound terminal nodding racemes, fragrant ; pedicels bracteate at the base, sometimes bract- eolate. Perianth superior, of 6 sub-equal seg- ments in two series, rather oblique, deciduous ; segments linear-oblong ; of the 3 outer 1 is anticous and 2 lateral ; iuner narrow, posticous, and more or less labelliform. Stamens 3, 2 fertile opposite the lateral inner segments of the perianth ; third, if present, rarely fertile, opposite the anticous segment ; filaments short, adnate to the base of the style; anthers basifixed, erect, 2-celled, introrse; pollen of free grains. Ovary inferior, elongate, 3-celled ; style slender, terete ; stigma obscurely 3-lobed ; ovules numerous, attached to the inner angles of the cells. Capsule mem- branous, 3-celled, loculicidally 3-valved ; valves cohering at the base and top. Seeds numerous, very minute, ovoid or scobiform ; testa membranous, lax at both ends. GENERA. Apostasia. Neuwiedia. Neuwiedia. Diagram. A very small order, closely allied to Orchideee, distinguished by the style and the 3-celled ovary, which, however, occur in the Selenipedium section of Cypnpediea. The species, which are very few, nre natives of Trans-Gangetic India and the Malay peninsula and islands. They have no known properties. — Ed.] VIII. BURMANNIACEIE. (Burmannle, Sprengel. — Burmanniaceai, Bl. — Tripterelleai, Nuttall. — Thismieai et Triuride.e, Miers.) Flowers $ . Perianth superior, 6-partite, 2-seriate. Stamens 3-6. Ovary inferior, 1—3 -celled ', stigmas 3. Seeds with cellular testa, exalbuminous. Embryo undivided. — Weak herbs with linear leaves, or aphyllous. 1 This Order is omitted in the original. VIII. BURMANNIACEiE. Apleria. Flower laid open. Burmannia. Transverse section of fruit (mag.). Burmannia disticha. Burmannia. Burmannia. Burmannia, Seed (after Griffith) Seed cut verti- Undivided (mag.). cally (mag.). embryo (mag.). VIII. BURMANNIACEiE. 779 Annual or perennial herbs, terrestrial or parasitic (?), very weak, green whitish or pink, aphyllous, rarely sarmentose and bearing leaves. Flowers £ , in a 2-fid many-flowered cyme, or 1-2-flowered, very various in colour, and bracteate. Perianth superior, petaloid, tubular, tube regular or gibbous ; limb of 6 2-seriate segments, the inner smallest, the outer sometimes very long [Ophiomeris) . Stamens inserted at the top of the tube or on the throat of the perianth ; filaments distinct or monadelphous ( Thismia ); anthers with 2 disconnected cells, introrse; connective dilated, various in form. Ovary inferior, 1 -celled with 3 parietal placentas, or 3-celled with 3 axile placentas ; style simple, springing from the thickened top of the ovary ; stigmas 3, 2-3-fid ; ovules numerous. Capsule crowned by the marces- cent perianth, tereto or 3-angled, 3-winged, membranous; sometimes 1-celled, opening at the top or on one side into three semi-placentiferous valves ; sometimes 3-celled, opening laterally between its angles by transverse slits, or a pyxidium. Seeds numerous, small, oblong, some truncate and umbilicate at the end, the others pointed ; testa lax. Embryo minute, undivided, cellular. Burmanniacece form a small well-marked group, from their parasitism and floral structure, and are connected on the one hand with Taccacece, and on the other with Aristolocliieoe, as well as with the Rhizanthous plants allied to the latter. Around Burmanniece proper, various other genera maybe grouped as sections of the Order as follows : — Burmanniece proper. — Terrestrial plants, green and leafy, or discoloured and aphyllous. Perianth of 6 segments, the 3 outer winged. Stamens 3, opposite to the inner segments. Ovary 3-celled; stigmas 3. Burmannia, Gonyanthes, Neph rocodum. ApteranthEcE. — Discoloured aphyllous plants. Perianth persistent or cadu- cous, wingless. Stamens 3. Ovary 1-celled. Apteria, Dictyostegia, Gymnosiphon, Benitzia, Cymbocarpus. Thismie/E. — Discoloured aphyllous plants. Perianth regular or gibbous, wing- less. Stamens 6, monadelphous or free. Ovary 1-celled. Capsule opening trans- versely. Thismia, Ophiomeris. StenomeridEcE. — Green leafy sarmentose plants. Leaves cordate, resembling those of Dioscorew or Smilax. Perianth with G divisions. Stamens 6. Ovary 3-celled. Capsule linear, elongated, membranous, triquetrous. Stenomeris. Allied Tribe. Triuride.e.1 — Pale monoecious plants. Perianth 6-merous. Stamens 6. Ovaries numerous, free on a rounded receptacle, 1-ovuled ; style lateral and basilar, resembling the carpels and gynophore of a Strawberry. Sciaphila, Hexuris, Triuris. Burmanninceee Lave been placed near Orchidia by several botanists on account of their undivided embryo, reduced to a little cellular mass, which appears to be entirely formed of the tigellus. They are allied to Iridcir by their G-merous 2-seriate perianth, their triandrous andrcecium, anthers with longi- ' Triu rid eme of Iris Jlorcntina is medicinally the most important of the family ; when fresh it is a strong purga- tive ; dried, it stimulates moderately the pulmonary and gastro-intestinal mucous membranes; it enters into e< veral pharmaceutical preparations, and its violet scent is a well-known perfume [Orris-root]; little balls of it, called Iris peas, are used to maintain suppuration after cautery. I. germunica and pallida were formerly used as diuretics and purgatives. The tubers of the Flag or Bog Iris (I. Pseud-acorus), the taste of which is acrid and astringent, are still administered by some country doctors in dropsy and chronic diarrhoea. Those "f I. virginica and versicolor are similarly prescribed in North America. I. sibirica is considered an antisyphilitic in North Asia. The rhizome of I. feetidissima was renowned among the ancients for the cure of hysteria and scrofula. The bulbs of Sisyrinchium galaxioides, Ferraria purgans and cathurtica, and Libertia i.vioides, are used in South America as purgatives and diuretics. Pardanthus chinmsis has a high repute in India as an aperient. The root of Gladiolus communis is made into an amulet by the super-titious peasants of Germany ; that of G. segetum was anciently considered an emine- nagogue and aphrodisiac. The bulbs of Moraa collina, of the Cape, are very poisonous, and have the same effects as Fungi. 3 E 786 XI. AMARYLLIDE2E. The stigmas of the Saffron ( Crocus sativus), the origin of which is unknown, and the cultivation of which dates from very ancient times, contain a strong-scented volatile oil and a rich yellow dye; they are greatly esteemed as an emmenagogue, and as an excitant of the gastric and cerebral functions ; it is still cultivated in France and Spain, and largely used by dyers and liqueur manufacturers, and also as a condiment in some countries. The stigmas of the other species of Crocus, although containing a colouring matter, are useless. The blue perianth of Iris germanica, crushed and mixed with lime, yields the Iris green of painters. Finally, the seeds of I. Pseucl-acorus are a well-known substitute for coffee. XI. AMARYLLIDEJE. (Narcissorum sectio, Jussieu. — Narcisse^e, Agardh. — Amaryllideab, Br. — Amaryllidace.e, Lindl.) Flowers $ . Perianth superior, petaloid, 6-fid or -partite, 2-seriate, sometimes with a crown simulating a supplementary perianth. Stamens 6, very rarely 12—18, inserted on the perianth. Ovary inferior, 3 1 -celled', style simple-, ovules anatro- pous. Fruit a loculicidally 3-valved capsule, or fleshy and indchiscent. Seeds albuminous ; testa membranous or thick ; raphe lateral, immersed. Embryo short , Snowflake. ( Leucojum vernum.) Snowflake. Flower cut vertically (mag Snowflake. Amlrcecinm and pistil. Alstrcemeria versicolor. Flower. Snowflake. Seed, entire and cut vertically (mag.). XI. AMARYLLIDEiE. 787 Agave chloracanlha. Vertical section of Agave. upper part of bud. Stamen. © Snowdrop. ( Galantfcus nivalis.) Flower. Snowdrop. Pistil. Agave. Ovule (mag.). Agave. Transverse section of ovnry (mag.). Oporanthus. Fruit cut vertically. Oporanthus. Seed, entire and cut. vertically. Snowdrop. Androecium and corolla. m ile. — Perennial herbs, visually bulbous, stemless. Leaves radical, elongated, entire. Scape terminated by one or several flowers furnished with spatliaceous bracts. Perennial herbs, usually steinless, bulbous and with fibrous roots ; rarely caulescent with fascicled roots and alternate cauline leaves ( Alstroemeria , Doryantlies) . Leaves radical, in 2 or several rows, sometimes 2 spreading (Hcemanthus) , entire, sheathing at the base, nerves parallel. Scape cylindric or angular, solid or fistular, sometimes very short, or nearly 0 ; rarely stem erector twining (Bomarea). Flowers 3 k 2 788 XI. AMARYLLIDEiE. ? , elegant, regular or irregular, solitary or umbellate, or rarely in aggregated spikes ( Doryanthes ), enclosed in spathaceous bracts. Perianth superior, petaloid, 6- phyllous, or tubular-infundibulifonn ; limb 6-partite, 2-seriate, regular or ringent, imbricate, deciduous or marcescent, often bearing at the throat a petaloid crown simulating an accessory corolla ( Narcissus , Pancratium, &c.). Stamens inserted either on an epigynous disk or on the tube or throat of the perianth, 6, opposite to the divisions of the perianth, or sometimes 12-18 ( Gethyllis ), then very rarely all fertile ; filaments cohering by their dilated bases, equal and erect, or unequal and inclined ; anthers introrse, 2-celled, basi- or dorsi-fixed, erect or incumbent, very rarely adnate within to a thick connective (Chlidanthus) , opening by 2 longitudinal slits, or at their tips. Ovary inferior, 8-celled, rarely sub-l-celled ( Calostemma ) ; style simple, erect, or inclined with the stamens ; stigma undivided or 8-lobed ; ovules numerous, rarely definite ( Grijfinia , Hccmantlms, Calostemma, &c.), 2-seriate at the central angle of the cells, parietal in the 1 -celled ovary, usually horizontal or pendulous, rarely ascending (Grifiinia, Hcemanthus, Gethyllis, &c.), always anatropous. Fruit a loculicidally 3-valved capsule, or rupturing irregularly, rarely 1-2-celled by arrest, sometimes an indehiscent berry ( Gethyllis , Hcemanthus, Sternbergia, Clivia, &c.). Seeds shortly funicled, rarely solitary, sub-globose, angular or flat ; testa sometimes membranous or papery, often margined or winged ; sometimes thick and fleshy, or even enormously hypertrophied ( Pancratium , Calostemma, &c.); raphe longitudinal, deep seated, sometimes fleshy ; clialaza apical ; albumen fleshy. Embryo straight, axile, shorter than the albumen ; radicle reaching to the hilum, centripetal or superior, rarely inferior. * Galanthus. * Oporanthus. Eustephia. * Clivia. * Agave. Fourcroya. * Sternbergia. * Haemanthus. * Narcissus. * Bom area. PRINCIPAL GENERA. * Crinum. * Pancratium. Gethyllis. * Calostemma. * Amaryllis. * Alstroemeria. Leucojum. ' Grifiinia. Doryantlies. AGAVEA3. (Ciosely allied Geneba.) Amaryllidece only differ from Liliacccc (which see) in their inferior ovary. They approach Iridece, Ilypoxidece, and Ilcemoduracea : Iridece are separated by triandry and extrorse anthers ; Ilypoxidece by habit, the texture of their flower, and their black crustaceous testa ; Ilccmodoracecc by their stamens, which are often reduced to three, their not bulbous roots, &c. Ayavece are true Amaryllidece, without bulbs, with valvate perianth-segments and a fistular style perforated at the top, and they are further remarkable for their spiny fleshy leaves and their often gigantic scape, which flowers but once, and terminates in a large panicle. Amanjllidece mostly grow in temperate or tropical regions; the remarkable fact in their geographical distribution is that the genera without a corona to the perianth are very rare in Europe and North America, but abound in South Africa and trans-equatorial America. Several genera are confined to Europe, South Africa, America, and Australia respectively. The Snowdrop ( Galanthus nivalis) alone reaches high latitudes. Crinum and Pancratium prefer seashores in temperate and hot regions. Apace americana is now spread throughout the tropics, and even into Mediterranean Europe and Africa, where it is used for fences. Amaryllidece are much sought as ornamental plants, and rival liliaccce in the magnificence of their flowers and the sweet smell of several species, which are therefore used in perfumery. Their properties XII. HJ3MODOBACE2E. 789 are also analogous to those of Liliacece ; the mucilage of their bulbs is more abundant and less acrid, but it is combined with a bitter gum-resin, which is a violent emetic. This property induced the ancients to class among medicinal plants Narcissus pseudo-Narcissus and the Snowflake ( Leucojum vernwn), which both flower in the spring. The bulb of Sternberyia /idea, which grows in the East, was formerly employed to hasten the ripening of indolent tumours ; those of Amaryllis, Crinum, and Pancratium are still thus used in Asia and America. Pancratium mari/imum possesses properties similar to those of Scilla, and is sometimes substituted for it. Amaryllis Belladonna, of the Antilles, and Ilccmanthus toxicaria, of South Africa, are eminently poisonous ; the Kaffirs make use of the latter to poison their arrows. Crinum zeylanicum is also considered in the Moluccas a violent poison. Finally, the flowers of Narcissus pseudo- Narcissus are narcotic in small doses, and dangerous in larger ones. Alstrcemcriee, from South America, which are noticeable for their habit and the beauty of their flowers, bear farinaceous tubers, which may serve as food. A. Salsi/la is used in Chili as a substitute for Sarsaparilla. The Ayave americana , cultivated in our gardens under the incorrect name of Aloe, is greatly esteemed in Mexico, on account of the various uses which can be made of it. When its central bud is removed previous to the lengthening of the scape, it yields an abundance of sugary liquid, which, when fermented, becomes a spirituous drink, called pulque, greatly esteemed by the Mexicans, and which by distillation yields an alcohol analogous to rum, named mescal. The expressed juice of the leaves is pre- scribed by American doctors ns a resolvent and alterative, very efficacious in syphilis, scrofula, and even cancers. The woody fibres which form the framework of the leaves afford a very tenacious thread, the Vegetable Silk of commerce, from which the ancient Mexicans made paper. The scape, dried and cut in pieces of a varying thickness, is used for razor-strops, and as a substitute for cork. XII. II aEM 0 DORA CE^E, Br. Flowers $ . Perianth petaloid, 6-merous, 2-seriate , regular or sub-irregular, usually superior. Stamens 6, of which 3 are of ten sterile, or 0, inserted on the perianth- segments. Ovary inferior, or rarely superior, 3- celled , or sub -1- celled ; ovules usually semi-anatropous. Fruit usually a loculicidally 3-valved capsule. Seeds albuminous. Embryo with radicle near or far from the hilum.— Perennial herbs. Leaves ensiform, equitant. Flowers in a panicle or corymb. Perennial herbs ; roots fibrous, fascicled. Stem simple or nearly so, some- times shortened, or a rhizome. Leaves alternate, usually distichous, ensiform, sheathing at the base, equitant. Flowers $ , regular or sub-irregular, in racemes or a corymb, bracteolate. Perianth petaloid, tubular or sub-campanulate, usually hairy or woolly outside, glabrous within, usually superior, 6-partite ; divisions 2-seriate, either free to the base, or joined below into a tube, sometimes sub- irregular, and unilateral above ( Anigosanthus ). Stamens 6, inserted at the base of the perianth-segments, of which 3 are opposite to the outer segments, often imper- fect or 0, the 3 others fertile, 1 sometimes deformed ; filaments filiform or subulate, rarely dilated and petaloid, free, or partially adnate to the perianth-segments ; anthers introrse, 2-celled, basi- or dorsi-fixed, dehiscence longitudinal. Ovary inferior or rarely superior (Xiphidium, Wachendorfia, &c.), with 3 cells opposite to the inner segments of the perianth, rarely sub-l-celled by failure of the septa ( Phlebocarya ) ; style terminal, simple, base sometimes dilated and hollow ; stigma undivided ; ovules inserted at the inner angle of the cells, solitary or geminate, or indefinite, peltate, 790 XII. HiEMODORACEiE. A nigosanthus flavida. Hcemodorum, Seed (mag.). 7i. hilum ; m, micropyle. A nigosanthus, ^ nigosanthus. Stamen (mag.). Ovule (mag.). Hannodorum . Hcemodorum, Embryo Albumen cut transversely, (mag.). semi-anatropous, or rarely anatropous. Fruit a 3-celled capsule, accompanied or crowned by the marcescent perianth, loculicidally 3-valved; valves septiferous, or septa remaining attached to an axile column, rarely a 1-seeded nut ( Phlebocarya ). XIII. HYPOXIDEiE. 791 Seeds solitary or geminate or numerous, oblong, peltate or basifixed ; testa coria- ceous, glabrous or hairy ; albumen cartilaginous, hard. Embryo straight, short ; radicle usually distant from the liilurn, and placed almost outside the albumen. PRINCIPAL GENERA. Lachnanthes. Xiphidium. * Ilsemodorum. * Anigosanthus. lllancoa. * Wachendorfia. Conostylis. Hamodoracetr are near Amaryllidees and I r idea in the 6-meroua 2-seriate petaloid perianth, the G or 3 stamens, the usually inferior and 3-celled ovary, albuminous seeds, &c. ; they differ from Amur y Hide x in their usually hairy or woolly perianth, equitant leaves, stamens often reduced to 3, ovary sometimes superior, and root never bulbous ; they are separated from Iridece by their introrse anthers. Anigosanthus approaches Uromeliaceee in the perigynous androecium. JIamodoracea are principally North American, South African, and South-west Australian. Xiphi- dium aud Hngcnhachia are tropical American. The roots and seeds of several species contain a red colouring principle ; such is Laclinantlies tindona, of North America ; but this principle, analogous to Madder, is much less solid, and is little used. XIII. II YPOXIDExE, Br. Flowers ? , regular. Perianth superior, petaloid, G-merous, 2-seriate. Stamens G; anthers introrse. Ovary inferior, with 3 many-ovuled cells', ovules semi-ana- tropous. Fruit a capsule or berry. Seeds stropliiolate, albuminous. Embryo axile; radicle distant from the hilum, superior. — Stemless herbs. Leaves linear. Herbaceous stemless perennials ; root tuberous or fibrous. Leaves all radical, linear, entire, folded, nerves parallel. Scapes simple, or branched at the top, cyliudric, sometimes very short, or 0 (Curculigo) . Flowers $ , yellow, rarely diclinous by arrest, regular, either sessile and radical, or terminating the scape, solitary whorled or panicled, 1-2-bracteolate. Perianth petaloid, superior, 6-par- tite, persistent or deciduous ; segments 2-seriate, the outermost velvety. Stamens G, inserted at the base of the perianth-segments ; filaments free ; anthers introrse, 2-celled, basifixed, erect, sagittate, dehiscence longitudinal, sometimes cohering into a tube. Ovary inferior, 3-celled, or 1-celled with 3 parietal placentas ( Curculigo ) ; style terminal, simple ; stigmas 3, free or connate ; ovules numerous, 2-several- seriate at the inner angle of the cells ( Hypoxis ), anatropous. Fruit a capsule dehiscing longitudinally, or a berry, 3-celled, or 1-2-celledby abortion. Seeds numerous, sub- globose ; testa black, crustaceous, wrinkled ; funicle sometimes persistent ; albumen fleshy. Embryo straight, axile, nearly as long as the albumen; radicle distant from the hilum, superior. PRINCIPAL GENERA. * Hypoxis. * Curculigo. llyposidea are near Amaryllidees in their perianth, inferior ovary, &c. ; they are separated by their habit, their seeds with black and crustaceous testa, &c. ; they especially approach Asteliece in habit, hairiness, the number of stamens aud stigmas, the 1-3-celled ovary, &c. Their linear-folded leaves, with parallel nerves, recall those of Gagea, a Liliaceous genus. 792 XIII. HYPOXIDEiE. Hypoxis. Seed, entire and cut vertically. Hypoxis. Embryo (mag.). Hypoxis. Dehiscent fruit. Curculigo. Diagram. Hypo.videce abound nowhere ; a few inhabit South Africa, extra-tropical Australia, India, and the tropical and hot extra- tropical regions of America. Little is known of their properties. The tubers of Curculigo orckiuides , which resemble those of Orchidea, become when dry transparent like amber; their sub-aromatic bitterness leads to their employ- ment in affections of the urethra. The roots of C. stems, which grows in the Marianne Islands, are edible. The tubers of Hypoxis erecta are prescribed by the natives of North America for the cure of ulcers, and they are used internally for intermittent fevers. XIV. VELLOSIEiE. 793 XIV. VELLOSIEvE, Don. Rarbacenia. Stamen (mag.). Rarbacenia purpurea. Flower. Rarbacenia. Flower cut vertically. Rarbacenia. Fruit. Perennial plants. Stem woody below, dicliotomonsly branched, clothed with the leaf-bases, which are agglutinated by a resin- ous viscous juice. Leaves collected at the top of the stem and branches, grass-like, spines- cent or very stiff. Perianth superior, peta- loid, G-partite, 2-seriate, regular. Stamens inserted at the base of the perianth, either G free, or indefinite and united into several bundles, naked or with a scale at their base ( Vellosia ) ; filaments filiform, or plane and 2-fid at the top ; anthers linear, dorsi- or basi-fixed, 2-celled, introrse. Ovary inferior, 3-celled ; ovules numerous, horizontal, anatropous or semi-anatropous. Capsule opening at the top into 3 incomplete loculicidal semi-placentiferous valves. Seeds numerous, cuneate or angular ; testa coriaceous or suberose ; albumen fleshy. Embryo minute, placed laterally and outside the albumen. Barbacema. Diagram. Rarbacenia. Vertical section of seed (mag.). GENERA. Vellosia. Barbacenia. VeU»*iexe are closely allied to Bromeliacea in the perianth, style, ovary, fruit, and embryo, and in the leaves crowning the top of the stem; Bromeliacea are separated by their exterior calycoid perianth and farinaceous albumen. Vvllosiece also approach Ilamodoracece, from which they only differ in the number of stamens, sometimes indefinite, the 3-gonous and 3-partite style, the usually arborescent stem, clothed with the persistent leaf-bases, and leafy at the top [and the situation of the embryo]. They abound in Brazil, and are exceptionally met with in Madagascar, Arabia, and Abyssinia. 794 XV. DIOSCOREiE. XV. DIOSCOREJS. (Dioscorea, Br. — Dioscoreace^e, Lindl.) Dioscorea Batatas. J plant. Dioscorea. £ flower (mag.). Dioscorea Batatas. 9 plant. Dioscorea. 9 flower (mag.). Dioscorea. Transverse section of ovary (mag.). Tamvs. Germinating seed, th2 plumule raising the operculum. XT. DIOSCOREiE. 795 Tamils. Seed, entire and cut vertically (mar g.). . i w TettuiJinaria ekjthanlijies (reduced in size). Oioscorea. Frnit. Diovorca. S ,-d. Tamus. Germinating seed cut vertically (mag.). Tamus. Embryo. Tamus communis. Fructiferous branch. II 796 XV. DIOSCOREiE. Flowers dioecious. Perianth superior, 6-merous, 2-seriate. Stamens 6. Ovary inferior, with three 2-1 -ovuled cells ; ovules pendulous, superimposed, anatropous. Capsule or berry. Seeds compressed, winged, or globose, albuminous. — Twining or sarmentose herbs, with tuberous rhizome. Leaves reticulate-veined. Perennial herbs, or undershrubs, twining from right to left; rhizome subter- ranean, tuberous, fleshy, or epigeal, and covered with a thick and regularly cleft suberose bark (Testudinaria), giving off annual branches at the top. Leaves alter- nate or sub-opposite, petioled, simple, palminerved, nerves reticulate, entire or palmisect; petioles often biglandular at the base, and often producing bulbils or large tubers at their axils. Flowers dioecious by arrest, small, inconspicuous, regular, in axillary racemes or spikes. Perianth herbaceous or sub-petaloid, superior in the ? flowers ; limb with 6 segments, 2-seriate, equal, persistent. Stamens 6, inserted at the base of the perianth-segments ; in the $ 0, or rudimen- tary ; filaments short, free ; anthers introrse, 2-celled, shortly ovoid or globose, dorsi- fixed, dehiscence longitudinal. Ovary inferior, 3-celled ; styles 3, short, often co- herent at the base ; stigmas obtuse, or rarely emarginate-bilobed ; ovules solitary or geminate, pendulous, superimposed at the central angle, anatropous. Fruit sometimes membranous, capsular, 3-gonous, 3-celled, opening at the projecting angles loculicidally ( Dioscorea ); sometimes 1-celled by the arrest of 2 cells, the third fertile, winged ( Rajania ) ; sometimes an indehiscent berry, 3-celled, or 1-celled bjr obliteration of the septa ( Tamus ). Seeds compressed, and often winged in the capsular fruits, globose in the berried ; albumen fleshy and dense, or cartilaginous. Embryo small, included, near the liilum, thinner and auricled at the upper end ( Dioscorea ., Rajania), or oblong-cylindi’ic (Tamus); radicle near the liilum. PRINCIPAL GENERA. * Dioscorea. Rajania. Tamus. * Testiulinaria. Dioscorea; are very near Smilax in the nervation of the leaves, the perianth, androeciuin, fleshy fruit, &c., but are distinguished by the inferior ovary. They differ from Taccacece (see p. 782) in habit, 3- celled 1-2-ovuled ovary, and the internal structure of the seed ; like Taccacece, they have some points of resemblance with Aristolochiece. Dioscorece inhabit especially southern tropical and extra-tropical regions ; they are much rarer in northern temperate latitudes. Rajania is peculiar to tropical America. Tamus inhabits woods in tempe- rate Europe and Asia. Dioscorea is met with in the tropics, and in temperate Australia; one small species has recently been discovered in the Pyrenees ( D . pyre.naica). Testudinaria is peculiar to South Africa. The root-tuber of Dioscorece, often called Ubi, Ufi, or Papa (names given by the Americans to the Potato), is filled with an abundant starch, mixed with an acrid and bitter principle. D. sativa, alata, penta- pbylla, bulbiftra, Batatas, &c. are cultivated throughout the tropics, and contribute largely to the sus- tenance of the Malays and Chinese, and the natives of Oceania and West Africa. The leaves of some species are used in intermittent fevers. The tuber of Tamus communis was formerly used as a purgative and diuretic ; resolvent qualities were also attributed to it, and it was rasped, and applied as a plaster on arthritic strumous tumours, and on bruises — whence its name of Beaten Woman’s Herb. The shoots, deprived of their acridity by boiling, are eaten like Asparagus. XVII. BUTOMEiE. 797 XVI. TRIUR1DEJE. 1 (Triuriace.e, Miers. — TRiURACErE, Qardn. — Triuridace^e, Lindl. — Triuride^e, Dene, and Lc Alaout.) [Very slender white or discoloured rarely green herbs ; roots fibrous. Stem simple, rarely divided, filiform, straight or flexuous, erect. Leaves 0, or bract-like, alternate, nei-veless. Flowers minute, racemose or spiked, monoecious or dioecious, rarely unisexual ; pedicels bracteate. Perianth 3-4-6 -8-partite, hyaline ; segments connate at the base, valvate, tips often caudate. Stamens few, various in number, sessile in the base of the perianth, usually seated on an andropliore ; anthers 4-celled, 2-valved, lobes rarely separated. Carpels many, on a central receptacle, 1 -celled ; style excentric, lateral or basal, smooth or feathery; stigma obsolete or truncate or clavate ; ovide 1, basal, erect. Ripe carpels obovoid, coriaceous and indehiscent, or 2-valved, 1-seeded. Seed ovoid ; testa reticulate ; nucleus cellular. Section I. Tkiurieje. — Perianth-lobes with twisted tails that are indexed in bud. Anther- cells separate, each 2-locellate. O vary gibbous ; style ventral. Triuris, Hcxuris. Section II. Sciai’IULE.e. — Perianth-lobes without tails. Anther-cells confluent. Style almost basilar. Soridium, Sciaphila, llyalisma. A very singular little order, well defined and illustrated by Miers in the Linmean Transactions, from which work the above descriptions are taken. According to hiin they are allied to Alismacece ; in the neighbourhood of which the late It. Brown also informed me they must in his opinion be placed. Triuridcer are natives of tropical forests in America and Asia, growing on mossy banks and dead leaves, with hardly any attachment to tho ground. Hyalisma is a native of Ceylon (it is referred to Sriaphilu by Thwaites) ; Sciaphila of both Asia and America; all the other genera are American. — Ed.] XVII. BUTOMEJE. (Butome.e, L.-C. Richard. — Butomace^e, Endl. , Lindl.) Flowers 5. Perianth G-merous, 2-seriate {calyx and corolla). Stamens hypo- gynous, 9-oo . Ovaries 6-00, whorled, more or less distinct, i-celled, many-ovuled ; ovules erect, anatropovs or campylotropovs, placentation parietal. Fruit follicular. Seeds numerous. Embryo straight or hooked, exalbuminous ; radicle inferior. — Marsh herbs , perennial, stemless. Flowers solitary or umbelled. Perennial marsh or aquatic herbs, stemless, glabrous, sometimes milky. Leaves all radical ; petiole semi-sheatliing at the base; blade linear or oval, large, nerved, sometimes arrested. Scapes simple, 1 -many-flowered. Flowers 5 , regular, solitary ( Hydroclcis ), or umbelled ( Butomus , Limnocliaris) ; pedicels with membranous See tribe 7'riurulca of Burmanniaccee, p. 779. — Ed. 798 XVII. BUTOMEiE. Butomus. Flower (mag.). Butomus. Tistil (mag.). Butomus. Diagram. Butomus. Stamen and traiisverse section of anther. bracts. Perianth 6-phyllous, leaflets 2-seriate ; outer herbaceous or sub-coloured ; inner petaloid, imbricate, usually deciduous. Stamens hypogynous, sometimes 9, of which 6 are in pairs opposite to the sepals, and 8 opposite to the petals {Butomus), sometimes indefinite, the outer often imperfect ( Limnocliaris , Hydrocleis ) ; filaments filiform, free ; anthers introrse, 2-celled, linear, dehiscence longitudinal. Ovaries 6 or more, whorled, free, or slightly coherent by their ventral suture, 1-celled, many- ovuled ; styles continuous with the ovaries, stigmatiferous on their ventral face ; XVIII. ALISMACEiE. 799 ovules many, covering the surface of the cell, or attached to a reticulate parietal placenta, erect, anatropous ( Butomus ) or cainpylotropous ( Limnocharis ). Carpels distinct, coriaceous, usually beaked by the persistent styles, dehiscing ventrally ( Butomus ) or dorsally ( Limnocharis ), many-seeded. Seeds erect, sometimes shortly funicled, straight, with membranous testa (Butomus); sometimes sessile, hooked, with a crustaceous transversely wrinkled testa ( Limnocharis ). Embryo exalbuminous, straight or hooked ; radicle inferior. O 7 PRINCIPAL GENERA. * llutomus. Butomopsis. * Limnocharis. * Ilydrocleis. Butwneu are closely allied to Alismacete , through Limnocharis, only differing in their singular placen- tation and the number of their ovules. This family is not numerous; Butomus inhabits the north temperato zone, Limnocharis and Jlydro- ,hi .« tropical America, Butomopsis Africa. The roots and seeds of Butomus umhellatus (Flowering Rush) were formerly recommended as emollients and refrigerants. The baked root is still eaten in North Asia. Jli/droclris is remarkable for its milky juice, and Limnocharis for the structure of its leaves, which have a large terminal pore, by which the plant appears to relieve its tissues when gorged with liquid. This phenomenon is identical with that described by Schmidt, Duchartre, and C. Musset, as occurring in several Aroidcee ( Colocasia ), and which consists in an intermittent more or less abundant emission of pure water, to the extent of more than half an ounce in a hot summer’s night, a phenomenon which has been observed in the leaves of Gramineee, and several other Monocotyledons. XVIII. ALISMACEJE, Br. Flowers 3, or monoecious. Perianth Q-merous, 2-seriate (calyx and corolla). Stamens hypogynous or perigynous, equal or multiple in number with the perianth leaflets. Ovaries more or less numerous, whorled or capitate, distinct, 1-celled, 1-2- ovuled ; ovdles carnpylotropous. Fruit a follicle. Seeds recurved, exalbuminous. Embryo hooked. — Stem herbaceous. Leaves radical, strongly nerved. Aquatic or marsh herbs, perennial, sometimes producing subterranean tuber- like buds (Sagittaria). Leaves usually radical, rosulate or fascicled ; petiole with a dilated sheathing base ; blade entire, nerves prominent, converging towards the top and united by secondary transverse nerves, cordate or sagittate or oval-oblong, iirrested when the leaf is submerged, and then replaced by the petiole changed into a linear or spathulate phyllode. Flowers regular, $ , or rarely moncecious ( Sagittaria ), in a raceme or panicle with whorled pedicels. Perianth 6-pliyllous, leaflets 2-seriate, the 3 outer calycinal, the 3 inner petaloid, aestivation imbricate or convolute, caducous. Stamens inserted on the receptacle, or at the base and on the sides of the inner perianth leaflets, equalling them or double or multiple in number; filaments filiform; anthers 2-celled, introrse, dorsifixed in the § flowers, extrorse and basifixed in the ( Sagittaria ), dehiscence longitudinal. Ovaries G-8-00 , whorled or capitate, quite distinct ( Alisma , Sagittaria) , or coherent by their ventral suture (Dama&onvum) ; style ventral, very short; stigma simple; ovules campylo- tropous, solitary, basilar, erect ( Alisma , Sagittaria), or 2-3 superimposed, the one 800 XVIII. ALISMACEiE. Alisma, Diagram. Alisma Plantago. Flower cut vertically (mag Alisma Plantago. Fruit (mag.). Alisma. Seed (mag.). Alisma. Seed cut vertically (mag.). XVIII. ALISMACEiE. 801 basilar and erect, tbe others horizontal. Ripe carpels indehiscent, or dehiscent by their ventral suture. Seeds recurved, exalbuniinous ; testa membranous. Embryo hooked, sub-cylindric ; radicle inferior or centripetal. PRINCIPAL GENERA. 'Alisma. * Sagittaria. Damasonium. Alitmactte have by a great many botanists been united with Juncagincce, which only differ in their always txtrorse anthers, anatropous ovules, and straight embryo ; Alismaceee are also connected on the other band with Butomta , which are separated by their placentation and the number of them ovules. They are found, though not abundantly, in the temperate and tropical regions of both worlds. Alisma grows in the temperate zone of the northern hemisphere and the tropics of the New World. Sagittaria inhabits the same countries, but is rarer in the tropics. Damasonium inhabits certain parts of Europe, North Africa, North-west United States, and East Australia. Most Alismaceee possess an acrid juice, which led formerly to their use in medicine. The Water Plantain ( Alisma Plantago) and Sagittaria sagittafolia have been prescribed, but without good reason, for hydrophobia ; the feculent rhizomes of the latter lose their acridity by desiccation, and serve as food to tbe Tartar Kalmucks; the same is the case with S. sinensis, cultivated in China, and S. obtusi/olia, of North America. 3 F 802 XIX. JUNCAGINE2E. XIX. JUNCAGINEvE , L.-C. Richard. Flowers £ , or diclinous. Perianth 6-merous, 2-seriate, calycinal, sometimes 0. Stamens 6, perigynous or hypogynous, sometimes 1 only ; anthers extrorse. Ovaries 3 or more, distinct, or more or less coherent, 1-2-ovuled •, ovules basilar, anatropous. Triglochin palustre. Transverse section of fruit (mag.). Triglochin laxifiorum. Carpel (mag.). Triglochin laxifiorum . Carpel cut vertically (mag.) XIX. JUNCAGINEiE. 803 Triglochin laxiflorum. " Pistil (mag.). Tetroncium. Yonng fruit. • Ultra. Portion of inflorescence. l.itaa. 9 flower (mag.). Ultra. g flower (nmg.). Scheuchzeria. Embryo (mag.). Triglochin laxiflorum. Antheriferous scale. Triglochin. Triglochin. Seed. Embryo. Tetroncium. Embryo cut transversely. Lilwa. Lilcea. Seed Embryo (mag.). (mag.). Ultra. Basilar fruit. Ultra. Transverse section of fruit (mag.). Fruit dinia, Halophila, kc.). Fruit usually a nut or utricle, sometimes a berry (Posidonia), indeliiseent, or opening more or less irregularly at germination. Seed 808 XXII. NAIADEiE Najas major. Najas. £ flower expanded, ehiscent (mag.). (A- Braun.) Najas. Anther covered by the perianth (mag.). Najas. Embryo, entire and cut vertically (mag.). Najas. $ flower with outer perianth turned back (mag.). Najas. Fruit, entire and with open epicarp (mag.). (A. Braun.) Phucagroslis major. 9 plant. Bomet.) Phucagroslis . Base of leaf, outer face (mag.). Phucagroslis. Base of leaf, inner face, showing the scales (mag.). XXII. NAIADEiE 809 Phucagrodi * major. £ plant. (Bomet.) Phucagrostis major. Longitudinal section of a root and rootlet, showing the pilcorliiza (mag.). (Bornet.). Caulinia. Seed (mag.). Caulinia. Embryo (mag.). Zoster a marina. Fructiferous spathe. Zoster a marina. Upper end of spathe. 810 XXII. NAIADEiE. Zostera marina. Pistil laid open below to show the insertion of the ovule (mag.). Zostera. Fruit, entire and opened (mag.). Zostera. Embryo cut vertically, and portion of cotyledon, showing the point. Zostera. Embryo, entire and cut transversely (mag.). sub-globular or ovoid ; testa thin or membranous, smooth or reticulate. Embryo macropodous. GENERA. Zostera. Pliucagrostis. Lemnopsis. Phyllospadix. Caulinia. Halophila. Posidonia. Najas. Zostera inhabits the estuaries of the North Sea and Atlantic and Indian Oceans, Posidonia and Phuca- grostis the Mediterranean, and Phyllospadix the western shores of North America. Caulinia and Najas inhabit fresh still waters in Europe and America. In Holland the leaves of Zostera are used in the con- struction of dykes. For some years they have been used in France for stuffing mattresses and for packing. Adrien de Jussieu, who studied the classification of Monocotyledons, divided them into albuminous and exalbuminous, and the latter again into terrestrial ( Or chide a) and aquatic. The exalbuminous aquatics have been divided into two sections, according to the presence or absence of a true perianth. The chlamydeous section includes Alismacece , Putomece, and Hydroeliaridece , which have six perianth divisions, the three inner petaloid ; the other section comprises Jvncaginece, Naiadeee , Potamece, and Zosteracece, which have a scaly, membranous, or herbaceous perianth, or are aclilamydeous. The three families of the first section are distinguished by free or coherent ovaries, and by the placentation ; those of the second section by the embryo, which is brachypodous and homotropous in Juncaginece , macropodous and antitropous in Zosteracece , macropodous and amphitropous in Potamece, macropodous and homotropous in Naiadeee. With modifications we have adopted this classification,1 and after many endeavours we have suc- ceeded in uniting in what appear to us homogeneous groups, the exalbuminous aquatic Monocotyledonous genera, placed in one family by most botanists. Without overlooking the close affinity between Junca- ginece, Potamece, Naiadeee, &c., we think that the form of the stigmas — entire and peltate, or divided and pointed — may serve to group very naturally the different genera of Naiadeee and Potamece, the latter being 1 After many attempts by many botanists, it is stances the simplest and most practical is that adopted pretty clear that any linear arrangement of the Mono- in this work. See Synopsis of Orders at the end. — cotyledonous families is quite impossible, and that there Ed- is little choice between several of them ; under which cir- XXIII. PALMiE. 811 connected with Juncaginete. It is thus that we have united to Potamece, Ruppia, which has hitherto been placed near Posidonia and Zostera. On the other hand, it is probable that when the fruits and seeds of IlalophiUt, Lnnnopsis, & c. are known, a family will be made of these genera, which, by its manv-ovuled ovaries with parietal placeutation, will stand in the same relation to Naiadecc that Butomece do to Alis- tnncete, which Aponogeton and Ouvirandra approach. It appears superfluous to discuss the modern view, based on that of Adanson, who considers ‘as very rational ’ the affinity between Alismacea and Ranunculaceee , and we shall retain our opinion until we find, on examining their seeds, with or without a microscope, an albumen and a dicotyledonous embryo in Sagittaria, which Adanson believed that he had seen, just as he fancied he saw two cotyledons in the seed of Reeds. If, in spite of the conscientious work and the sagacious observations which during the last hundred and fifty years have so greatly advanced Botany, it is allowable to revive paradoxes that have been absolutely condemned by science ; if mere superficial resemblance is sufficient to establish natural affinity, we do not see why we should hesitate to follow Adanson in uniting, as lie has done, Cycadea with Palms, Ariitolochiea ? with VaUimeria , Polygala with Tithymalece, and so forth. Sago. Fruit and $ inflorescence. Cham ccvops humilis. Diagram £ . XXIII. PA LMaE , L., Juss., Martins, Blame, &c. Chamcerops. $ flower. Chamctropi humiht. Polygamous inflorescence. 812 XXIII. PALMtE. Pinanga. Diagram 9» Caryota . Diagram £ . Chamcedorea. 9 inflorescence. Pinanga. Vertical section of ovary (mag.). Rhapis. Half androecium and sepal. Areca Catechu . Monoecious inflorescence, 9 flowe below, $ above. XXIII. PALMiE. 813 Flowers usually diclinous, sessile, or pedicelled on a simple or branched spadix. Calyx and corolla 3-merous. Stamens usually G, hypogynous or perigynous. Ovary free, with 1-3 coherent or free carpels ; ovules solitary in each cell, rarely geminate. Fruit a berry or drupe. Seed albuminous. Embryo peripheric. — Stem woody. Leaves alternate, petiole sheathing, blade usually laciniate. Perennial woody plants, elegant or majestic in habit. Primary root decaying’ early, and replaced by numerous adventitious roots, wliicli are developed at the base of the trunk, and form a compact conical mass, often very voluminous, and rising more or less above the soil, and in certain cases raising the trunk, and supporting it like the shrouds of a ship. Trunk [stipe) usually tall and slender, sometimes short and tumid ( Geonoma and Phoenix acaulis, Astrocaryum acaule, &c.), or a short and creeping inclined stock, or forming underground a branched rhizome, the top of which, crowned by leaves, is on the surface of the soil ( Sabal , Rhapis)-, simple, or very rarely dichotomous ( Hyplieene , &c.), sub-cylindric, or rarely swollen towards the middle ( Iriartea , Acrocomia, Jubcea), with or without nodes, smooth or armed with hairs, which are thickened and elongated into spines ( Martinezia , Badris), usually rough and annulated by the persistent bases of the leaves, sometimes marked with spiral scars ( Coryplia elata). Leaves springing from the terminal bud, alternate, base sheathing the stem ; sheath sometimes with a ligulate prolongation at the upper part (Sabal, Copernicia, &c.), and usually decomposing into a fibrous network after the decomposition of the leaf ; petiole convex below ; blade pinnatisect or flabellate, or peltate ( Licuala peltata), or simply split ; segments or pinnules callous at the base, quite distinct, or coherent below, folded longitudinally in vernation, with margins recurved [or erect or depressed], often split along the secondary nerves; nerves sometimes persistent and resembling filaments, sometimes much prolonged in tendril-like appendages (Calamus). Inflorescence axillary. Spadix (regime) furnished with an herbaceous or almost woody spathe, monopliyllous, or com- posed of several distichous bracts, wholly or partially enveloping the inflorescence, or considerably shorter than it. Flowers small, usually dioecious or monoecious, rarely 2 (Coryplia, Sabal, &c.), shortly pedicelled or sessile, often sunk in the pits of the spadix, furnished with a bract and 2 opposite bracteoles, free or coherent, sometimes reduced to a callosity, or 0. Perianth double, persistent, coriaceous, formed of a calyx and a calycoid corolla. Sepals 3, distinct or more or less coherent, often keeled. Petals 3, more or less distinct, sestivation valvate in the $ flowers, imbricate-con volute in the $. Stamens hypogynous on a sub-fleshy disk, or perigynous at the base of the perianth, usually G, 2-seriate, opposite to the sepals and petals, rarely 3 (sp. Areca, sp. Phoenix), or multiples of 3 (15-30 in Borassus, 24-3G in Lodoicea), sometimes rudimentary in the 9 flowers ; filaments distinct, or united at the base into a tube or cup; anthers introrse, or sometimes extrorse, 2-celled, linear, dorsifixed, dehiscence longitudinal. Carpels 3 (rarely 2-1), distinct, or coherent into a sub-globose or 3-lobed ovary, with 1-3 cells, of which 2 are very often arrested, usually rudimentary in the $ flowers ; styles continuous with the back of the carpels, coherent, or rarely sub-distinct; stigmas simple; ovules rarely geminate and collateral in each cell, usually solitary, fixed to the central angle 814 XXIII. PALMAE a little above the base, sometimes orthotropous with the micropyle superior, sometimes more or less anatropous with the micropyle inferior, or facing the wall of the ovary. Fruit sometimes 3-2-1 -celled, 3-1-seeded, sometimes 3-lobed, sometimes composed of 3 distinct carpels, accompanied at the base with the persistent and usually hardened perianth. Berry or drupe with smooth or scaly epicarp ; sar cocarp fleshy, and sometimes oily or fibrous ; endocarp membranous, fibrous, woody, or bony. Seed oblong, ovoid or spherical, erect or pendulous laterally ; testa often adhering to the endocarp ; albumen copious, cartilaginous, horny or sub-woody, dry or oily, homo- geneous or ruminate. Embryo pressed against the periphery of the seed, and covered with a thin layer of albumen, turbinate or conical or cylindric. Cocoa-nut (Coccs nuci/era). Fruit, one-third nat. size. Cocoa-nut ( Cocos nucifera). Fruit cut vertically. 6. endocarp ; c. testa ; d. albumen ; e. embryo ; /. cavity occupied by the milk. S. Langkab. Fruit cut transversely. Cocoa-nut, seen lengthwise, showing the three sides corresponding with the three primitive carpels. Cocoa-nut, seen from below, and showing the three cavities corresponding to the three original carpels. Areca Catechu. Fruit, entire and cut vertically. XXIII. PALMiE 815 Cuei/era thebaica. Fruit cut vertically. Chamcerops. Seetl, entire ami cut vertically. Chamoernps humilis. Cluster of fruits, natural size. Chamcerops. Fruit. Sta/orl/iia tl&jans. Chamadorea latifolia. 816 XXIII. PALMiE. Caryota sotolifera. Date. Fruit. Date. Fruit cut vertically. Date. Seed cut transversely (mag.). Date. Seed. Face opposite chalaza. Date. Seed. Face opposite hilum. Date. Embryo (mag.). Tribe I. AREC1NE2E. Trees or shrubs with pinnate, pinnatifid or bipinnate leaves ; pinnules with curved margins. Spathe polypliyllous, rarely monophyllous, very rarely 0. Flowers monoecious or dioecious, sessile on a smooth foveolate or bracteolate rachis. Stamens hypogynous. Fruit deeply 3-lobed, a berry or drupe. Albumen homo- geneous or ruminate. Embryo usually basilar. PRINCIPAL GENERA. Ckamasdorea. * Areca. Harina. Hyospathe. Pinanga. Iriartea. Hyopborbe. Kentia. Ceroxylon. CEnocarpus. Seaforthia. * Arenga. Oreodoxa. Orania. * Caryota. XXIII. PALM2E. 817 Tribe II. CALAMEJE. Sarmentose or arborescent plants. Leaves pinnate or palmate-flabellate, often terminating in a long appendage armed with books ; pinnules with decurved margins. Spathe usually polyphyllous, rarely monophyllous. Spadices branched. Flowers usually diclinous, sessile; bracts and bracteoles enveloping the flowers, and simula- ting an amentaceous inflorescence. Stamens hypogynous or perigynous. Fruit a berry covered with imbricate quadrate scales, which are at first erect, then recurved ; albumen homogeneous or ruminate. Embryo lateral or sub-basilar. PRINCIPAL GENERA. * Calamus. riectocomin. Zalacca. Dremonorops. * Sagus. * Mauritia. Tribe III. B0RASSINE2E. Trees with palmate-flabel- late or pinnate leaves ; pin- nules of the flabellate with erect margins. Spathes woody or fibrous, reticulate ( Manicaria ), imperfect and sheathing the base of the spa- dices, or perfect, and com- pletely enveloping them. Flowers usually dioecious, the >rt of velvet. The seeds of Sparyanium are eaten by water-birds. [The pollen of Typha is made into bread by the natives of Scind and New Zealand.] XXVIII. CYCLANTHEIE, Poiteau. Stemless or caulescent plants. Stem sub-woody, often climbing by means of adventitious epiphytic roots. Leaves cauline or radical, petioled, alternate or Carludonca f alma /a . Carludovica. 9 flower seen from above, showing the four perigoniai scales, opposite the four caducous fila- ments, and alternate with the four lobes of the ovary. Carludovica. Stamen, inner face. Carludovica, Diagram 9, showing the perianth, the situation of the four filaments, and the four parietal placentas. Carludovica. Stamen, outer face. Ca rl udovica . Carl udovica . Bundle of stamens, Bundle of stamens, outer face. inner face. 828 XXVIII. CYCLANTHEiE. Carludovica lanecefolia. Inflorescence. Carludovica. Ovule (mag.). Carludovica, Seed cut vertically (mag.). Carludovica. Portion of inflorescence, showing the four staminodes and the bundles of stamens. C. palmata. Group of young fruits crowned by the scales. C. palmata . Group of fruits seen from above. alternate-distichous, coriaceous, entire or 2-3-5-partite ; nerves parallel or oblique, llabellate. Spathes 4- to 3-phyllous, imbricate. Spadix monoecious, cylindric. Flowers densely covering the spadix ; the $ grouped in 4 bundles accompanying the $ ( Carludovica ), or 9 and $ in alternating spirals [Cyclanthus). Flowers $ : Perianth multifid ; lobes very short, irregularly 2-seriate, imbricate in aestivation [Carludovica), or 0 (Cyclanthus) . Stamens in 4 bundles opposite to the lobes of the perianth ; filaments short, slightly dilated [Carludovica) , or fragile [Cyclanthus) ; anthers oblong or linear, 2-celled, dehiscence longitudinal. — Flowers Perianth 0 [Cyclanthus), or of 4 fleshy valvate herbaceous or coloured scales, each with a long caducous filament [staminode) at the base, the remains of which are inconspicuous [Carludovica). Ovary 2 4-lobed at the top, 1-celled, oo-ovuled, with 4 parietal placentas ; stigmas small, sessile, with 2 antero-posterior lobes [Cyclanthus), or linear and answering to the placentas [Carludovica) ; ovules anatropous, sessile [Carludovica), XXVIII. CYCLANTHE2E. 829 or on Ion" funicles (Cy clan thus). Fruit a syncarpous berry, of fleshy 9 flowers; bark of the spadix fructiferous, bursting at tlxe base into 8-4 irregular fleshy strips, which roll up by degrees towards the top of the spadix, and l'etain the berries fixed in their pulp ; these soon delicpiesce and leave the seeds ( Carludovica palmata). Seeds numerous ; testa soft or coriaceous, filled with rapli- ides ; raplie often thickened ; albumen horny. Embryo small, straight, cylindric, basilar ; radicle near the liilum. GENERA. Cyclftnthus. * Carludovica. Cyctauthece, which are closely allied to Pandanea and Freycinetiea , are equally near Aroidecc and Palms. They are exclusively tropical Ame- rican. The flowering spadices of several Cyclanthi , and especially of C. bipar- tite, cultivated by the natives of the province of Maynas, in Brazil, have a sweet scent, between that of vanilla and cinnamon. The Indians cook them with meat as an aphrodisiac. Pceppig has observed that these spadices are never attacked by fructivorou9 animals, not even by the numerous species of ants, usually so fond of succulent fruits. Carludovica palmata , which grows in the damp forests of Ecua- dor, Peru, and New Grenada, yields a much-valued straw, from which are manufactured Guayaquil or Panama hats. Weddell remarks that the young leaves are gatbered in bud, while still scarcely tinged with green ; the fan-shaped blade is so cut into strips as only to preserve the middle part of the divisions of the blade, which remains attached to the petiole, and the size of which varies according to the fine- ness of the work for which it i9 intended . the leaf thus prepared is steeped successively in boiling water, in water acidulated with lemon- juicr, and *n ven cold water, and allowed to dry ; the bleaching is then perfect. In drying, the edges of Cpclanthus biparlitus. Inflorescence. 830 XXIX. FBEYCINETIEiE. each strip become revolute, giving it a cylindrical shape, which greatly increases its solidity. The price of these hats varies singularly ; the commonest are sold for Is. 6r/., those of medium quality are worth 5s. ; a fine one will fetch 31. 2s. Gd. to 51. 4s. 2d. ; but some are made of so fine a tissue that they are sold at the enormous price of 20/. 16s. 8c/. The straw of Carludovica is also used in the manufacture of cigar- cases. XXIX. FRE YCINE TlEsE, Brongniart. Freycinetia Banksii . vertical section of a group of stamens enclosing the abortive pistil. Freycinetia imbricata . Transverse section of fruit (mag.). F. Banksii. Ovary accompanied by sterile stamens. Freycinetia. Seed, entire and cut vertically (mag.). Stem often rooting or sarmentose, rarely arborescent, with the habit of Pandanus. Leaves narrow, sheathing, amplexicanl below, with parallel nerves, denticulate or sub-spinous on their edge and dorsal face, equitant in mstivation. Inflorescence terminal, rarely lateral ; spathes usually yellow or red. Spadix polygamo-dicecious, simple, entirely covered with naked flowers.— Flowers $ in a tuft, often grouped around an abortive ovary. Stamens oo ; filaments filiform, isolated or in groups of 2-3 ; anthers 2-celled. — Flowers $ : Ovaries numerous, 1-celled, many-ovuled, accompanied at the base with sterile stamens, which are isolated or agglomerated in bundles of 3-4-oo ; stigmas sessile, distinct; ovules anatropous, ascending, 2-seriate on 3 parietal placentas, linear, alternating with the stigmas. Berries aggregated, 1-celled, several-seeded. Seeds minute, sunk in a colourless pulp, erect on short funicles ; testa membranous, smooth or striate ; raphe lateral, more or less developed, and stropliiolate ; albumen fleshy, dense. Embryo minute, straight ; radicle near the hilum, and inferior. ONLY GENUS. Freycinetia. Freycinetiece are distinguished from Pandcmece by their ovaries with three many-ovuled placentas, and the baccate lower part of the fruit. Like Pandcmece they inhabit the large islands of the [Malayan Archipelago,] Pacific Ocean, Norfolk Island, New Zealand and North Australia. XXX. AROIDEiE. 831 XXX. AROIDEAE. (Aroide.e, Jussieu. — Arace.e, Schott. — Callace^e, Bartlinc/.) Arum. Pistil cut vertically (mag.). A rum. Seed cnt vertically (mag.). macula! urn. Arum. Arum. Stamen (mag.). Fruit. Arum. Spadix and spathe cut vertically. 832 XXX. AROIDEiE. Colocasia Boryi. Calla pctlusti'is. Ripe fruits. Calla palustris. Inflorescence. Calla . Seed, entire and cut vertically (mag.). 'Tornelia fragrans. XXX. AROIDEiE. 833 A mbrosinia. Inflorescence cut vertically, showing the pistil and nndrnecium separated by a fleshy diaphragm. A mbrosinia Bassii. A corns Calam us. Ovary, showing its projecting endostomc. © Acorus Calamus. Vertical section of pistil, showing the pendent orthotropous ovules. BfmpUscarpus. Exalbuminons seed Symplocarpus /ortidus. cut vertically (mag.). Seed (mag.). (Asa Gray.) Acorus Calamus. Ripe carpel (mag.). Cyrlosperma. Seed cut vertically (mag.). 3 H Gymnostachys anccps. Inflorescence. Ambrosinia. Pistil covering the dia- phragm which hides the androecium. Ambrosinia. Ovary cut vertically (mag.). Ambrosinia. Pistil (mag.). Gymnostachys anccps. Fiower seen in front (mag.). Gymnostachys. Pistil, showing the pendent orthotropous ovule. 834 XXX. AROIDEiE. Pistia Slt'citiotes. Inflorescence. Pistia Slratiotes. Inflorescence cut vertically (mag.). Pistia. Orthotropous ovule cut verti- cally, and the hairs accom- panying the placenta (mag.), Pistia. Portion of androecinm (mag.). Richat'dia. Transverse section of lower part of ovary. Richat'dia. Transverse section of upper part of ovary. Pistia. Embryo (mag.). Orontium aquaticum. Flower seen in front (mag.). Pistia. Ovary cut vertically (mag.). Orontium aquaticum. Ovary cut vertically (mag.). Orontium. Stamen (mag.). Flowers monoecious, or more rarely dioecious, or 5 , inserted on a simple spadix, furnished with a spathe, with or without a perianth. Ovary 1 -several- celled, ; ovules basilar or parietal, erect, ascending or pendulous, orthotropous, campylotropous or ana- tropous. Fruit a berry. Seed albuminous, or very rarely exalbuminous. Embryo axile. — Stemless or caulescent plants. Leaves radical or alternate, blade dilated or linear, nerves prominent, reticulate. Usually herbaceous plants, with colourless or milky sap, perennial, sometimes with a rhizome or tubers, and then stemless; sometimes caulescent, with straight, branched and arborescent stems marked with petiolar scars, sometimes sarmentose, or climbing by means of adventitious roots; sometimes viviparous (Remusatia vivi- para), very rarely floating (Pistia). Leaves sometimes solitary, usually terminating an epigeal rhizome or stem, alternate, glabrous ; petioles sheathing at the base ; blade usually dilated, strongly palmi-pedati-pelti-nerved, cordate or hastate, entire or variously cut, sometimes perforated or bulbilliferous, vernation convolute. Scape or stem terminated by a spadix. Spathe monophyllous, variously involute, jiersistent or deciduous. Spadix simple, springing from the axil of the spathe, free, or adhering to its midrib, sessile or stipitate, entirely covered with flowers, or terminated by a sterile appendage, very various in form. Flowers usually imperfect, rarely 5 , sessile on the spadix, the 9 usually below, tbe $ above, contiguous, or separated by a XXX. AROIDEiE. 835 naked space, or by rudimentary ovaries, or by staminodes which sometimes succeed the $ flowers, and clothe the top of the spadix. Perianth 0, or (in the § flowers) 4-5-6-8-phyllous, or 5-8-fid. Stamens numerous, free or variously coherent; fila- ments short or obsolete ; anthers extrorse, 2-celled, opening either by a longitudinal or transverse slit, or by an apical or sub-apical pore ; pollen-grains sometimes agglu- tinated. Ovaries generally aggregated, distinct or coherent, 1-celled, or 2-3-4- many-celled by prolongation of the parietal placentas, furnished internally with hairs that secrete an abundant mucilage ; styles 0 or simple ; stigma capitate or discoid, undivided or sometimes lobed ( Asterostigma ) ; ovules solitary or more or less numerous, basilar parietal or apical, erect, ascending, sub- horizontal or pendulous, orthotropous or campylotropous, rarely anatropous and with external raphe ( Amor - phophallus variabilis). Fruit an indehiscent berry, 1-several-celled, 1 -many-seeded. Seeds sub-globose, oblong or angular ; testa coriaceous, thick ; albumen farinaceous or fleshy, copious, disappearing at germination, or rarely 0 (Symplocarpus) . Embryo white or green, axile, turbinate or cylindric, or sometimes slightly angular (Acorns), or very rarely curved ( Oyrtosperma ). Flowers $ , or and $ on the same spadix, aclilamydeous or not. Section I. Acoroidea:. — Spathe leaf-like, adnateto the peduncle. Flowers 5 , covering the spadix. Perianth 4-G-phyllous. Stamens as many as, and opposite to the sepals. Ovai-ies 1 -3-celled ; ovules pendulous, orthotropous. Seeds albuminous. — Herbs, usually containing an aromatic oil (Acorus), rhizome jointed. Leaves ensiform, equitant, sheathing in vernation. Section II. Orontiace/E. — Spathe persistent, herbaceous, or sometimes coloured ( Dracontium , Symplocarpns), rarely 0 ( Orontium ). Spadix covered with 5 flowers. Perianth 4-5-6-8-phyllous, or sometimes 5-8-fid (Dracontium). Stamens as many as, and opposite to the periantli-lobes. Ovaries 1-few-celled ; style usually 0, rarely subulate-elongate (Dracontium), or tetragonal- pyramidal (Symplocarpus) ; ovules sometimes basilar and campylotropous (Pothos), or horizontal and semi-anatro- pous (Orontium), sometimes pendent and anatropous (Anthurium), or campylotropous (Cyrtosperma, Lasia). Seed usually exalbuminous. — Herbs, rarely aquatic (Orontium), stemless c.r caulescent, and often sarmentose or climbing ( Pothos , Anthurium). Leaves alternate, sometimes jointed (Pothos, &c.), simple, entire ( Orontium , Symplo- carpus , Pothos), or pinnatisect (Lasia), or palmisect (Anthurium), or pedate (Dracon- tium). Stipulary sheaths adnate to the petiole, or opposite to the leaves, sometimes alternating with the petiole (Anthurium). Spathe longer or shorter than the Tribe I. CALL ACE JE. PRINCIPAL GENERA. * Acorus. Gymnostachys. PRINCIPAL GENERA. Orontium. Iauin. Symplocarpus. Cyrtosperma. Arctiodracon. Dracontium. * Anthurium. Pothos. Spathiphyllum. 3 h 2 83G XXX. AROIDEiE. Section III. Calleae — Spatlie coloured, persistent ( Calla ), or deciduous {Monstera, Scindapsus). Flowers aclilamjdeous. Spadix sometimes § below, some- times $ below and $ above ( Monstera , Scindapsus) ; filaments flat ; anthers 2-celled, opening longitudinally. Ovaries 1-few-celled ; stigma sessile or sub-sessile ; ovules erect, anatropous {Calla, Monstera), or campy lotropous ( Scindapsus ). Seed sometimes exalbuminous {Scindapsus). — Terrestrial herbs, sometimes aquatic {Calla). Stem elongate, often stoloniform, branched or climbing, and more or less furnished with adventitious roots. Leaves sub-distichous, blade entire or perforated {Monstera, &c.). Stipulary sheaths adnate to the petiole, or free and opposite to the leaves. PRINCIPAL GENERA. * Calla. * Monstera. * Scindapsus. * Tornelia. Tribe II. ARACEAE. Flowers diclinous, achlamydeous, the 9 on the lower, the $ on the upper part of the spadix. Section IY. Anaporear — Spadix free {Aglaonema, Richardia), or adnate to the spathe {Spathicarpa, Dieffenbachia, &c.), rarely terminated by a sterile appendage {Pinellia). Flowers 9 aud $ contiguous, the 9 usually mingled with staminodes. Anthers free or coherent, sunk in a thick connective, opening by pores. Ovaries 1-3-celled ; style short or 0 ; ovules solitary or numerous, erect or ascending, rarely ■pendulous {Richardia), orthotropous, or rarely anatropous {Richardia, Aglaonema). — Herbs with kuotted rhizome, stemless or caulescent. Petiolar sheaths elongated, the stipulary 0. PRINCIPAL GENERA. * Richardia. * Pinellia. Spathicarpa. * Aglaonema. * Dieffenbachia. Section Y. Colocasieae- — Spadix free, terminated by a naked and sterile appendage {Colocasia, Peltandra, &c.), or with no appendage {Caladium, Xanthosoma, Acontias, Syngonium, Philodendron, &c.). Flowers 9 and $, numerous, usually separated by rudimentary organs. Anthers free or coherent, cells sunk in a thick and peltate connective. Ovaries numerous, free, 1-many-celled, several-ovuled ; style short or 0 ; ovules orthotropous or semi-anatropous. Seeds albuminous. — Herbs with tuberous rhizome, stemless or caulescent, sometimes climbing. Leaf- blade pelti-palmi-nerved. Petiolar sheaths long or short, the stipular 0, or elon- gated and opposite to the leaves. Spathes usually sweet-scented. PRINCIPAL GENERA. * Colocasia. Peltandra. Syngonium. * Alocasia. * Xanthosoma. * Philodendron. * Caladium. * Acontias. Section YI. Dracunculinear — Spadix free, or rarely adnate to the base of the spathe, monoecious, or very rarely dioecious {Arisaema), terminated by a naked elavate appendage {Arum), or flagellate ( Ariswma ), or globose and irregular {Amor- XXX. AROIDEiE. 837 phophallus). Flowers 9 and $ numerous, sometimes separated by rudimentary organs. Anthers free or rarely coherent, cells larger than the connective. Ovaries free, 1 -celled, 1 several-ovuled ; stigma sessile or sub-sessile; ovules orthotropous or very rarely anatropous (Amorphophallus) , pendulous and erect in the same cell. Seeds albuminous, or very rarely exalbuminous ( A morphophallus ) . — Herbs with a usually tuberous or thick rhizome. Leaves strongly palmi-pelti-nerved, entire, cordate, hastate, sagittate, or palmi-pedati-partite. Spathe coloured, usually violet, glabrous or hairy within aud foetid. PRINCIPAL GENERA. Aris&rum. * Arum. * Dracunculus. * Arisnema. Typlionium. Pythonium. Biarum. Sauromatum. * Amorphophallus. Section VII. Cryptocorynea:. — Spadix included and jointed to the spathe by its top ( Cryptocoryne ), or projecting and free ( Stylocliceton ). Flowers 9 numerous, the lower separated from the £ . Anthers sessile or sub-sessile at the top of the spadix. Carpels numerous, whorled around the base of the spadix, and united into a several-celled ovary ; styles as many as carpels ; ovules ascending, orthotropous. Rudimentary organs 0 or indistinct. Seeds albuminous. — Marsh herbs ( Cryptocoryne ), or growing in sand ( Stylochceton ), rhizome stoloniferous. Leaves sub- 1 -nerved, or pahni-nerved, entire, lanceolate, emarginate at the base or sagittate. PRINCIPAL GENERA. Cryptocoryne. Stylochaeton. Lagenandra. Section VIII. Pistiacea:. — Spadix adnate to the spathe. Flower 9 solitary, separate from the £ flowers. Anthers sessile at the top or side of the spadix. Ovary 1 -celled, many-ovuled ; styles distinct; ovules basilar or sub-lateral, erect, orthotropous. Rudimentary organs 0. Seeds albuminous. — Aquatic floating herbs, stoloniferous, or terrestrial with tuberous rhizome. Leaves entire, several-nerved. PRINCIPAL GENERA. * Pistia. Ambrosinia. Aroideee, in spite of their polymorphism, foim a very homogeneous group; they have an obvious nflinitv with Tgphoceee and Pandancee; the former differing in the structure of the anthers, the latter in the conformation of the fruit. Pistia approaches Lemnaceee, the anthers and seeds of which present so close an analogy with Aroideee that certain authors have placed them in the same family. Lindley, in fact, joins Lemnaceee to Pistiaceee, w hich he separates from Aroideee ; but he equally separates Orontiacece, w hich he classes (we think wrongly) between Liliaccce and Juncece ; Orontiacece are inseparable from true Aroideee, and this affinity is confirmed by an observation of Gasparrini, who has seen monstrous flowers of Arum italiciim with a perianth analogous to that of Acorus and Orontium. The leaves of Aroideee, which are very variable in shape, texture and nervation, recall sometimes Sjtargtmieee (Ararat), sometimes Met rant acece ( Aejletonema mareinteefolium), sometimes Smilacece ( Goiiiuru* i, sometimes Taccaceev (I)r avunculus, A morph oph alius), and sometimes even some Dicotyledons, as AquUarinea ( HeUroptis taHcifolia), or Cycadea (Zamioculcai). They are sometimes jointed like those of Oranges ( Poihot), or stipulate like those of Piperaceee ; but, with the exception of Anthurhem violaceum , which bears some peltate epidermal scales, all known Aroideee have glabrous leaves. The fruits of some Anthuriums detach from the spadix by a peculiar mechanism, and remain suspended by elongated fibrous cords, similar to those which retain the seeds of Magnolia at the moment when the fruit bursts. 838 XXX. AROIDEiE. Most Aroidece are tropical, and especially abound in the large American forests and in the temperate regions of the Andes. Tropical Asia possesses fewer, but this is there compensated by the elegance and variety of the species. Few are met with north of the tropic of Cancer. Orontiacece and Callacece are the most arctic; one {Calla palustris) extends in North Europe to 64°. The true Arums are principally met with in the east of the Mediterranean region. The number of Aroidece hitherto observed in Africa is not considerable ; the United States of America possess at most six species. Symplocarpus grows in North Asia and America, as well as Arctiodracon, which extends beyond 49°. Richardia belongs to South Africa ; Cryptocorynece are met with in the swamps of Asia and on the sandy hills of tropical Africa ; Ariscema inhabits the mountains of sub-equatorial Asia and North America. Acorns is a native of North Asia, and has been introduced into Europe. Gymnostachys grows in east and extra-tropical Australia. Pistia is common in the waters of the whole tropical zone. The spadix of several Arums gives off when in flower more or less heat. This phenomenon, observed by Lamarck, Bory, Hubert, Brongniart, Van Beck, &c., is especially remarkable in tropical species ; the maximum of heat developed by our Arum maculatum is 7° to 9° above that of the surrounding air; but Colocasia cordifolia and odora emit a heat more than 10°, 12°, and even 22° above that of the atmosphere, according to Van Beck and Bergsma. Some Aroidece exhale during flowering a repulsive odour ; as, amongst others, Dracunculus crinitus, the cadaverous exhalations from which attract flies, which descend to the bottom of the spathe, where they are entangled in the long hairs ; but if some species are foetid, others on the contrary .are sweet- scented, as Richardia cethiopica, of South Africa, cultivated in Europe for the beauty and perfume of its white spathe, which encloses a golden spadix. Many Colocasias and Caladiums are now cultivated in our hothouses and public gardens on account of the elegance and size of their leaves. Aroidece are remarkable for the abundance of crystals throughout their tissue. Delile has discovered them even in the anthers, where they are mixed with the pollen-grains. The rhizome and leaves of Aroidece contain a very acrid juice, which may occasion serious accidents ; Lagenandra toxicaria, quoted by Bindley, is considered a most violent poison ; the stem and leaves of Dieffenbachia Seguina produce, when chewed, a violent inflammation of the mucous membrane, and a swelling of the tongue which renders it impossible to speak; the leaves of Colocasia and of Arum are also extremely irritating, but this acridity is removed by desiccation or cooking, and almost entirely disappears at the flowering season This acrid principle accompanies, in the rhizome, an abundance of starch, useful as food. Arum maculatum, a European plant, was prescribed by the ancients as an excitant in affections of the mucous membrane ; it was also applied externally as a rubefacient and epipastic ; but its qualities vary so much with the age of the plant that it has fallen into disuse. Calla palustris was formerly classed among alexipharmies, on account of its violent diaphoretic properties. Many other Aroidece are used as medicinal plants, such as, among the genera of the Mediterranean region, Arum, Arisarum, Dracunculus, and Biarum. The principal species renowned in Indian medicine are : Amorphophallus campamdatus, Typhonium trilobatum, Ariscema triphyllum, pentapliyllum, Dracontium, Scindapsus officinalis, &c. The root of Symplocarpus fatidus, remarkable for its foetid odour, resembling that of the polecat, is much employed by the Americans against asthma and chronic coughs. The dried root of Orontium aquaticum is considered edible in the United States. The leaves of Monstera pertusa, full of raphides, are slightly caustic, and are used, bruised, as a topic, for anasarca in tropical America. Those Aroidece which have starchy and edible rhizomes principally belong to the section Colocasiece. The most celebrated is Colocasia antiquorum, a native of India, cultivated in Egypt from time immemorial, and spread all over the tropics. C. himalaiensis1 supports, with Ariscema utile, the inhabitants of the Indian mountains. Other congeneric species are cultivated in Bengal. The Taro ( Alocasia macrorrhiza) abounds in the Pacific Islands. The rhizome and fructiferous spadix of Peltandra virginica, of North America, are equally edible. The fleshy spadices, bearing perfumed and well-tasted fruits, of Tornelia fragrans ( Monstera deliciosa ) are habitually sold in Mexican markets, where they rival the Pine-apple in estimation. The shoots of Xanthosoma sagittcrfolium, known under the name of Caraibe Cabbage, are ' Probably C. antiquorum, or Alocasia indica, is here referred to. The Himalayan Arisaemas are only resorted to in times of scarcity.— Ed. XXXI. LEMNACEiE. 839 used as vegetables in the Antilles. The rhizomes of our Arum macidatum and Call a palustris, bruised, washed, and mixed with the farina of cereals, serve, according to l’allas, as food for the poor populations of Lapland and Finland. Arum starch is sold in London under the name of Portland Arrowroot. Acorns Calamus, now naturalized in various parts of Europe, yields an aromatic acrid and bitter rhizome, used as a tonic and excitant, and entering into the composition of some compound medicines; the same is the case with A. gramineus, a native of China. The herbage of Pistia , brought each year from Central Africa to Egypt, was formerly prescribed as an emollient and refrigerant. The long adventitious roots of several Aroidecc, and particularly those of PlixjUodendron , designated in Centra! America under the names of Imbn, 0 untie, &c., are used as cords to tie up the bundles of Sarsa- parilla which are sent to Europe. XXXI. LEMNACEsE. (Lkmnace.e, D.C. et Duly, Link, Schleiclen. — Pistiace^e, Lindl. in part.) L. trisulea. FUtil (mag.). L. trisulea. Pistil ent vertically (mag.). L. trisulea. Inflorescence (mag.). L. trisulea. Fertile frond (mag.). L. trisulea. Seed, with and without it3 testa (mag.). L. trisulea. Ovule (mag.). /.. trisulea. Embryo (mag.). L. trisulea. Seed cut vertically (mag.). 840 XXXI. LEMNACEiE. Grantia microscop ica. Plant, entire and cut vertically (mag.). Telmatophace. Seed, entire and cut vertically (mag.). Wolffia brasiliensis. Entire plant (natural size). Grantia. Seed cut vertically (mag.). Telmatophace. Fruit laid open (mag.). Telmatophace. Embryo (mag.). Wolffia. a. anther ; b. pistil ; c. shoot ; d. cavity containing the shoot (mag.). Wolffia. a. point of union of frond; b. opening for exit of shoot (mag.). Herbaceous plants, very small, floating freely on the surface of stagnant water, stemless and reduced either to lenticular or obovate disks {fronds), flattened above, sometimes more or less convex below ; or to membranous productions springing at right angles to each other ; fronds emitting by 2 lateral slits, or sometimes by 1 basilar slit ( Wolffia ) young fronds similar to the first, with no vessels, or with rudi- mentary tracheae, transient in the pistil, sometimes apparent throughout the tissue of the plant ( Spirodela ) ; lower surface of the fronds usually bearing at the middle rootlets terminated by a membranous cap ( pileorrhiza ), fascicled {Spirodela), or re- duced to one ( Lemna , Grantia, Telmatophace)-, sometimes with no rootlets ( Wolffia) . Inflorescence imbedded in the frond. Flowers achlamydeous, naked, or enclosed in a spathe, reduced to 1-2 stamens, accompanied by a sessile pistil ; spathe urceolate, membranous, bursting irregularly by the evolution of the stamens ; filaments filiform ; anthers with 2 sub-globose cells, opening by a transverse slit ; pollen muricate, opening by a single slit ; style continuous with the top of the ovary ; stigma infundi- buiiform. Ovary 1 -celled, 1-many-ovuled ; ovule anatropous {Spirodela, Telmato- phace), or semi-anatropous {Lemna), or orthotropous {Wolffia). Fruit 1-many- seeded, indehiscent {Lemna, Wolffia), or dehiscing transversely ( Telmatophace ). Seed with coriaceous corky fleshy testa, endopleura membranous, forming an embryo- tegium at the inicropylar point ; albumen fleshy or scanty. Embryo axile, straight ; radicle superior, inferior or vague. PRINCIPAL GENERA. Lemna. Telmatophace. Spirodela. Grantia. Wolffia, At the beginning of winter Lemnas sink into the mud, where they perhaps all undergo transforma- tions analogous to those exhibited by L. triscula, the sterile membranous portions of which give rise to an orbicular fertile plant, which is similar in all points to L. minor. XXXIII. OPHIOPOGONEiE. 841 Lemnacea, which are the smallest known Phanerogams, are intermediate between Naiadece and Aroiilto they are closely allied to the latter through the genus l'ixtia, which approaches them in inflo- rescence and the structure of its seeds. They are found in stagnant water in all climates, but especially in temperate regions ; they are rarer in the tropics on account of the heat which dries up the swamps, and the torrents of rain which violently agitate the water. Their part in nature seems to be the protection from the solar light of the inferior organisms of the Animal Kingdom which live in swamps, and at the same time to serve them for food. XXXII. ASPIDISTREPE. Glabrous stemless herbs ; rhizome, usually creeping. Leaves radical, sheathing, oblong-lauceolate, coriaceous, nerves prominent. Flowers 2 , solitary, spiked, rising out of the ground ( Aspidistra ), or scape terminated by a dense spike ( Rho - dea, &c.). Perianth petaloid, valvate in aestivation, sub-globose (Rhodea), or cam- panulate ( Tupistra , Aspidistra), G-8-fid. Stamens 6-8, inserted on the perianth. Ovary free, with 3 2-ovuled cells ; stigma, sessile, rayed, 3-fid (Rhodea), or stipitate, 3-0-lobed (Tupistra, Aspidistra) ; ovules semi-anatropous. Berry (Rhodea) 1- cclled, 1 -seeded [or several-celled and -seeded in Aspidistra and Tupistra. Seed large, sub-globose; testa very thin ; albu- men copious, dense. Embryo cylindric]. Japanese and Asiatic plants. Aspidistra. GENUS. Tupistra. Rhodea. XXXIII. OPlIlOPOGONEsE. Stemless [tufted] herbs. Leaves sheathing, liuear-ensiform, or oblong-lanceolate. Scape simple, terminated by a raceme of $ flowers. Perianth petaloid, rotate, 6-fid or -partite ; throat naked, or furnished with an annular crown ( Peliosanthes ). Stamens 6 ; filaments dilated, almost 0 ; anthers basifixed, sagittate, mueronate (Opliiopogon), or adnate to the annular crown ( Peliosanthes ). Ovary adherent to the base of the perianth, of 3 2-ovuled cells ; style 3-gonous, thick ; stigma shortly 3-fid (Opliiopogon), or 3-fid and radiating (Peliosanthes)-, ovules anatropous. Rhodea japonica. Flowering spike. 842 XXXIII. OPHIOPOGONEiE. Peliosanthes Teta. Opluopogon spicalus. Ruptured fruits, leaving the seeds naked. Fruit breaking up and leaving the seeds exposed while still unripe. Seeds with fleshy herbaceous testa. — Indian and Japanese plants. GENERA. Ophiopogon. Peliosanthes. XXXIV. LILIACE^E. 843 Ophiopogon japonicus, called by the natives Serpent’s Beard, produces mucilaginous sugary tubers, frequently used in China and Japan for diseases of the abdomen. XXXIV. LILIACEjE. (Liliace.e et Narcissorum pars, Jussieu. — Hemerocallide^e et Asphodeleje, Br. — Liliace^e, Tulipace/E et Asphodele^e, D.C.). Flowers 5 • Perianth inferior, petaloid, G-merous, 2-seriate. Stamens 6, hypoyynous or perigynous. Ovary superior, with 3 several-many -ovulecl-cells ; style simple. Froit capsular. Seeds with membranous or crustaceous testa ; albumen fleshy. — Stem or scape with a bulbous, tuberous or fibrous-fascicled root. 841 XXXIV. LILIACEJE. Fritillaria. Dehiscent fruit. Fritillaria. Seed, entire and cut vertically* Muscari cornosmn. Hyacinthus. Flower cut vertically (mag.). Allium vineale. Vertical section of flower, gynobasic style. Allium Cep a. Stamen with appendiculate filament (mag.), Muscari comosum. Flower cut vertically (mag.). Lilium. Pistil. Hyacinth. Pistil. Phormium lena.r. Diagram. Aura phis. Pistil. XXXIV. LILIACEiE. 845 Herbaceous perennials, very rarely annuals, sometimes frutes- cent or arborescent ; root bulbous, tuberous, fibrous-fascicled, or with a creeping rhizome. Stem simple, or branching above, straight or flexuous ; or scape aphyllous, erect, very rarely twining {Streptolirion) [Bowiesa]. Leaves simple, entire, sheathing or amplexicaul, the radi- cal fascicled, the cauline usually sessile, generally linear, flat or channelled, sometimes cylindric, rarely terminated by a tendril ( Methonica ). Flowers ¥ , mostly terminal, solitary, racemose, spik- ed, umbellate or capitate, rarely panicled {Yucca), furnished with scarious or spathaceous bracts, regular or very rarely 2-labiate {Daubenya). Perianth inferior, petaloid, of 6 2-seriate divisions, distinct, or forming a tube 6-fid at the top, sometimes nectariferous at the base (Fritillaria) ; {estivation imbricate. Stamens G, inserted on the receptacle or at the base of the perianth ; filaments distinct, filiform or flat, sometimes appen- diculate or 3-toothed, the intermediate tooth antheriferous ; anthers introrse, 2- eelled, basi- or dorsi-fixed, or versatile, dehiscence longitudinal. Ovary free, with 3 scveral-many-ovuled cells ; style simple, terminal, or rarely gynobasic ( Allium vine- al> . &c.); stigmas 3, more or less distinct; ovules inserted at the central, angle of the cells, anatropous or semi-anatropous, Fruit dry, very rarely a berry ( Sanseviera , I.'anatopliyllinn), or sub-berried {Yucca, sp. Asphodelus). Capsule 3-celled, loculi- cidally 3-valved, rarely septicidal ( Calochortus , Ayapanthus, Knipliofiia, &c.). Seeds usually numerous ; testa various, sometimes membranous or suberose, pale, sometimes margined ; sometimes crustaceous, fragile, black; albumen fleshy. Embryo axile or excentric, variable in length, straight, or variously bent; radicle near the liilum. AU*e vulgaris. Tribe I. TULIPACE JE. Perianth-leaflets distinct and coherent at the base, sometimes nectariferous. Stamens hypogynous or obscurely perigynous. Ovules anatropous. Fruit a capsule, 846 XXXIV. LILIACEiE. rarely a berry. Seeds usually compressed ; testa pale brown, spongy or hard. Embryo small, straight or sub-arched, basilar. — Herbs with a usually bulbous root, sometimes tuberous (Methonica), or frutescent and annulated (Yucca). PRINCIPAL GENERA. *Tulipa. * Methonica.1 * Erythronium. * Lilium. Gagea. * Yucca. * Fritillaria. Lloydia. ’ Calochortus. Tribe II. HEMER OCA LL IDEAS. Perianth tubular, limb 6-fid. Stamens inserted on the perianth. Fruit capsular. Ovules anatropous. Seeds more or less compressed ; testa membranous, usually pale. Embryo axile, straight. — Perennial herbs, with tuberous or fibrous root. PRINCIPAL GENERA. * Fitnk'a. * Polianthes. Brodiasa. * Phormium. * Blandfordia. * Triteleia. * Agapanthus. Leucocoryne. * Hemerocallis. Tribe III. ALOINEAE. Perianth tubular, 6-fid, -toothed, or -partite. Stamens inserted on the recep- tacle or perianth-tube. Ovules anatropous. Fruit capsular, rarely a berry. Seeds compressed or angular, or winged ; testa membranous and pale, or crustaceous and black. Embryo axile, straight. — Perennial herbs, sometimes frutescent or arbores- cent, and with fleshy leaves (Aloe)\ roots fibrous-fascicled, often swollen. PRINCIPAL GENERA. * Sanseviera. * Tritoma. Lomatophylhim. Knipbofia. * Aloe. * Aspliodelus. #Ereinurus. Tribe IV. II Y A CINTHTNE2E. Perianth tubular or 6-partite. Stamens inserted on the receptacle or perianth- tube. Ovules anatropous or semi-anatropous. Fruit capsular. Seeds globose or angular ; testa crustaceous, black. Embryo straight or bent ; radicle facing the hilum. — Herbs with bulbous or fibrous-fascicled root. * Muscari. * Eucomis. * Scilla. * Urginea. * Bulbine. PRINCIPAL * Lachenalia. * Allium. Thysanotus. * Arthropodium. * Agraphis GENERA. Myogalum, * Phalangium. * Cyanella. TJropetalum. * Albuca. Bellevalia. * Hyacintbus. * Weltheimia. * Ornithogalum. * Anthericum. We have indicated the extremely close affinities between Liliacece, Asparagea and Smilacece ; fami- lies which together form a group to which most other Monocotyledonous families may be linked, directly or by intermediates. Thus Juncece, which are near certain Melanthacece and Liliacece, connect these with other families with a free ovary; and on the other hand, those Amaryllidece and Dioscorecc which 1 Methonica belongs to a very different tribe. See Tribe III., Mcthomccce, of Melanthacece, p. 853.— Ed. XXXIV. LILIACEiE. 847 belong, the one to the Liliaccce, the other to the Smilacea with nn inferior ovary, connect them with the epigynous Monocotyledons. Liliuct'rt are spread over all the world, except the Arctic zone ; they principally inhabit the tempe- rate and sub-tropical regions of the Old World. Tulipaceee, with the exception of Methonica [referred to MrUmthacea], belong to the northern hemisphere. Ifemerocallidea are most frequently met with in south temperate latitudes, rarely in North America and Japan. Aloinecc principal^ inhabit South Africa; Asphodelete, Europe. Hyacinthinece, which is the most numerous tribe, inhabit the temperate regions of both hemispheres ; they are especially abundant in the Mediterranean region, and are met with in Australia. Most of the genera are confined to certain countries : thus Drimia, Eucomis, Lachenalia, inhabit South Africa; Arthropodium is Australian; while Scilla, Urginea, See., are dispersed over Europe, Africa and Japan. Allium is spread over all East Europe and Northand Mediterranean [and Western] Asia. Liliacea are remarkable for the beauty of their flowers; at their head must be placed the Tulip ( Tulijxi (i, meriaua), the varieties of which are eagerly sought by amateurs, especially in Belgium and Holland. Among the principal genera cultivated for ornament, after Tulips, must be mentioned the II yacinth, Lily, Tuberose, Yucca, Agapantkus, Tritoma, Hemerocallis , Funkia, Fritillana, Methonica , &c. Lilith err contain an abundant mucilage often rich in sugar and starch, a resinous bitter substance, a volatile acrid oil, and an extractable principle, combined in very different proportions, and thus exhibiting a variety of properties; some being condiments and alimentary, others yielding more or less powerful medicines, and some even being poisonous. The bulbs of several of the tribe of Tulipaceee were formerly employed in pharmacy on account of their bitter acrid principle, analogous to that of Scilla. The root of Erythronium Dens-canis was once prescribed in Europe ns nn anthelminthic and aphrodisiac ; the North American species are used there to induce vomiting. The roots of Methonica are considered very poisonous ; the bulbs of Gagea, more mucilaginous and less acrid, are also used as an emetic. Those of Lilies (Lilium candidum, See.), which are verv rich in starch, are employed ns an emollient plaister. The fruits of Yucca are purgative; its root is used as soap. In the tribe of Ilemerocallideee we can only cite as useful species the Tuberose (Polianthes tuberosa ), of which the flowers are used in perfumery, and the New Zealand Flax ( Fhormium tinax), cultivated in some parts of western France for the sake of the fibres of its leaves, from which cordage is made. The flower of Hemerocallis was formerly used as a cordial. The tribe of Aloincm consists almost exclusively of Aloes, plants with thick fleshy brittle leaves, which possess under their epidermis peculiar vessels filled with an extremely bitter resinous juice, much used in medicine as a tonic, purgative, drastic and emmenagogue ; the principal species which yield it are Aloe fero.r, sjneota, plicatilis, arborescens, from the Cape of Good Hope ; A. socotrina, which grows at Socotra and in North-east Africa; A. vulgaris, a native of the Cape, and now naturalized in India and America, and cultivated in some parts of the Mediterranean region. Sanscviera grows in India; the root of some of its species is administered for affections of the urethra and lungs, and in rheumatism. The leaves of others (S. cylindrica, Sec.) abound in extremely fine textile fibres. Tim most important species of the tribe of Hyacinthinece is the Squill ( Scilla maritima or Urginea St ilia), which grows principally in Algeria ; its very large bulb is composed of numerous coats filled with a viscous juice, very bitter and acrid, and even corrosive, which contains a peculiar principle ( scillitine ), to which .-uiie of the qualities of the Squill are due. It is a powerful diuretic and an efficacious expec- torant and emetic. It is also used in tanning leather. The bulbs of Camassia esculenta are edible, and sought by some Indian tribes of North America. Tin- numerous species of Allium, which mostly contain nutritious matters, joined to a sulphurous volatile oil, and have an acrid taste and a pungent odour, owe to these principles alimentary and medicinal properties. The bulb of the cultivated Garlic (Allium sativum), used in cookery as a seasoning, is also used in medicine, externally as a rubefacient, and internally as a vermifuge ; and it enters, with camphor, into the composition of a celebrated prophylactic, known as Marseilles or Thieves’ Vinegar. The other species of Allium cultivated as condiments are the Common Onion (A. Cepa), the Winter Onion (.1. Jistulosum), the Eschalot (A. asca/onicum), the Leek (A. Porrum), the False Leek (A. Amprlopi asum), the Rocambole (A. Scorodoprasum), and the Chive (A. Scluenopramm). Several other spec ies .1. Moly, nigrum, Dinscoridis, Victorialis, ursinum , &c.), formerly classed among the officinal 848 XXXY. ERIOSPERMEiE. species, are now fallen into disuse. It is the same with the genera Hyacinthus , Muscari, Ornithoyalum, the bulbs of which were formerly used as purgatives and diuretics ; those of Ornithoyalum altissimum are still in use at the Cape for asthma and pulmonary catarrhs [those of O. pyrenaicum are sold and eaten at Bath as French asparagus]. The tuberous roots of Anthericum and Asphodelus lose their acridity by desiccation or boiling ; they were formerly considered diuretics and emmenagogues ; the Asphodel (A. ramosus ) was used as a substitute for the Squill. Some endeavours have recently been made to extract an alcoholic spirit from its tuberous roots. Tidbayhia alliacea, cepacea , See., with an alliaceous odour, have thick fibrous roots, which are cooked in milk and administered at the Cape for phthisis and worms. XXXV. ERIOSPERMEIE. Perennial herbs -with tuberous roots. Leaves precocious, petioled, rounded, thick, with projecting l’eticulate nerves ; blade bul- billiferous or gemmiparous below. Scape growing after the decay of the leaves, simple, cylindric. Flowers 5 , racemed or panicled ; pedicels with a scarious bract at the base. Peri- anth petaloid, 6-partite, campanulate, persistent. Stamens 6, inserted at the bottom of the perianth ; filaments flat, dilated at the base ; anthers sagittate- didymous, incumbent. Ovary free, with 3 few- ovuled cells ; style filiform, trigonous; stigma sub-capi- tate, obscurely 3-fid; ovules inserted at the bottom of the cell, ascending, anatropous. Capsule membranous, ovoid, trilobed-trigonous, with 3 loculicidal semi-septiferous valves. Seeds few or solitary, erect, lanceolate ; testa thin, covered with long silky hairs bent back to the chalaza, and longer than the nucleus. Eiiospennum. Ovule. Eriospermum. Vertical section of fruit. GENUS. Eriospermum. Stemless plants of South Africa. The villosity of the seeds is the only character which distinguishes Eriospermece from Liliacecc , a difference which, moreover, is found between the geneia of Midvacece , Tern&trcemiacecn and Convolvtdacece, but which has not therefore dissociated them. I he tubeis of one species, which are scarlet, are used as a topic for the cure of ulcers. XXXVIII. MELANTHACEiE. 849 XXXVI. CONANTHEREjE, Don. Stemless herbs, natives of Peru and Chili. Root tubero-bulbous, with fibrous coats ; scape branched, bracteate. Flowers $ , blue, panicled. Perianth petaloid, adhering to the ovary by its base; limb 6-partite, spirally twisted after flowering, and then detaching transversely above its base. Stamens 6, inserted on the perianth; filaments compressed, short, glabrous; anthers basifixed, connivent in a cone, opening by a pore at the top. Ovary sub-adlierent, of 3 many-ovuled cells ; style filiform ; stiyma simple. Capsule loculieidally 3-valved. Seeds globose. GENERA. Connnthera. Cummingia. Zephyra, &c. XXXVII. G1LLIESIEEE, Lindley. Plants of Chili. Bulbous glabrous herbs. Leaves radical, linear. Flowers 3 , inconspicuous, arranged in an umbel with a double coloured involucre. Perianth greenish, fleshy, sometimes with 3 2-labiate leaflets (Gilliesia)-, sometimes regular, ureeolate, 6-toothed (Miersia). Stamens G, sometimes adnate to the base of the perianth, and united into a cup, the 3 posterior sterile ( Gilliesia ); sometimes minute, inserted at the throat of the perianth [Miersia). Ovary of 3 many-ovuled cells; style filiform ; stiyma capitate. Capsule with 3 semi-septiferous valves. Seeds with a crustaceous black testa. GENERA. Gilliesia. Miersia. XXXVIII. ME LAN Til A CEAE. (Melanthea:, Batsch. — Melanthacea:, Br. — Colchicace^e, D.C. — Veratre.e, Salisbury.) Flowers 5 . Perianth sub-herbaceous or petaloid , G-mcrons, 2-seriate, r estivation imbr irate or valvate. Stamens G, inserted at thebaseor throat of theperianth ; ANTHERS i1nrsifii .il , usually e.rtrorse. Ovary superior, or rarely semi-inferior, of 3 many-ovuled cells ; styles 3. Fruit of three follicles, rarely a c Plan chon, they form an intermediate link connecting the genera on the confines of the group of Smilaceee with I.iliaccce properly so called. Sotihtcen mostly grow in tropical and extra-tropical regions of the New World, from Canada to the Straits of Magellan. Half of the species occur north of the tropic of Cancer, a quarter inhabit the same latitudes of Europe and Asia, the other quarter are dispersed over tropical Asia and Australasia; Smith Africa appears to contain none. The genera Polygonatum, Convallaria, Smilacina, Majanthemum, stn ■gtnpH*, belong to the temperate and cold regions of the northern hemisphere ; Ruscus to the south of Europe and the Canaries; Medeola to North America; Trillium inhabits cool and shady places in America nml North Asia. Paris grows in Central Europe and Asia; Smilax is spread over the temperate and tropical regions of both hemispheres. Smilaeru', divided into two tribes by their botanical characters, are so also by their properties. Paris quadrifolw and its congeners are regarded as poisonous, narcotic and acrid ; its leaves, root and berries were formerly employed medicinally. The root of Medeola virginica (Indian Cucumber-root), is used by Anglo-American doctors ns a diuretic and emetic. The r "it of our Polygonatum, called Solomon's Seal, from the circular marks left on the rhizome by the flowering stems, is inodorous, sugary, mucilaginous, astringent, and was formerly considered a vulne- rnrv. From its abundant starch, it has been mixed in bread in some parts of North Europe; its shoots lible, like Asparagus, but it- berries are nauseous, emetic and purgative. The berries of Smilacina ran loom are considered as a tonic for the nerves, as are those of the Lily of the Valley ( Convallaria viajalis), wi‘U known for it- "dorous flowers; its root is a sternutatory, and yields a drastic extract. The leaves of St re/ to/'”, amp! I i/olius arc list'd in popular medicine for astringent gargles; the young root is eaten as a salad, l he mucilaginous, slightly acrid and bitter roots of Ruscus share the qualities of Asparagus, and were formerly valued as an aperient, diuretic and emu _ i . Their seeds, when roasted, have an agreeable aroma, whence, like those of Asparagus, they have been used as a substitute for coffee. The roots of Sarsaparilla, so valuable in the treatment of syphilis, belong to different species of Smilax i .v s.ir- ijuvilla, offi inn! is, pnpgracca, syphilitica), natives of tropical America. The South European 858 XL. ASTELIEiE. erous root is candied in India. — Ed.] XLIII. XEROTIDExE, Endlicher. Perennial herbs. Stem 0 or very short. Leaves Grass-like or filiform, dilated at the base, or reduced to radical sheaths ( Aphyllantlies ). Flowers 5, or dioecious (Xerotes, Dasylirion), in a raceme, spike, head or umbel. Perianth petaloid or sub- colnured (.Y- rotes, Abama), with 6 equal leaflets or segments. Stamens 6, liypogy- nous or perigynous ; anthers 2-celled, oblong or ovoid, sometimes peltate ( Xerotes ). Ovary free, with 3 1-2- rarely several-ovuled cells [Abama, Xanthorrlioea) , sometimes 1-celled {Cal ectasia)', styles 3, usually united ; ovules attached near the base of the cells, erect. Capsule with 3 loculicidal semi-septiferous valves, sometimes 1-seeded and indehiscent ( Kingia , Calcctasia) ; albumen fleshy or cartilaginous. Embryo straight, basilar or axile. PRINCIPAL GENERA. Abamn. Dasylirion. Sowerbsea. Aphyllantlies. Xerotes. Xanthorrlioea. Kingia. Calectasia. I am un >wnro of the authority for this statement. — En. This Order is omitted in the original. — Ed. 862 XLIII. XEROTIDE^, Aphy llanthes. Fruit opened (mag.). Xerotes longifolia . Inflorescence. A phyllanthes monspelien&is. Flowers. X. rigida. Fruit. XLIV. JUNCE.E. 863 Xtrole» hmji/uUa. Diagram <}. X. ImKjtfolia. Diagram 8 XLYIII. COM MEL YNEsE. (JuNOORtJM genera, Jussieu. — Ephemerae, Batsch.- — Commeline^e, Br. — CommelynacEjE, Lindl.) Tradescantia W arczewiczii. Diagram. Tradescantia virginica. Calyx and pistil. Tradescantia subaspera. T. virginica Vertical section of ovary. T. virginica. Dehiscent fruit/ Tradescantia virginica . Seed, face next the hilum (mag.). Tradescantia virginica . Seed, face next the micropyle (mag.). T. virginica. Seed cut transversely (mag.). T. virginica. T. virginica. Ovule (mag.). Embryo (mag.). Commelyna nilagirica. Diagram, showing two introrse anthers, one extrorse, and two sterile. Commelyna nilagirica. Stamen, inner face. C. nilagirica. Stamen, dorsal face. Commelyna. Embryotegium covering the radicle (mag.). C. nilagirica. Sterile stamen. XLVIII. COMMELYNEiE. 8G9 Flowers 5 . Perianth inferior, double. Sepals 3. Petals 3. Stamens 6, hypogynous, nil fertile, or some sterile. Ovary superior, with 3 feiv-ovuled cells ; ovules or thot ropous. Capsule with 3-2 cells, loculicidal. Seeds albuminous. Embryo nntitropous. — Stem herbaceous. Leaves alternate. Succulent herbs, annual with fibrous root, or perennial with a tuberous rhizome. Stems cylindric, knotty. Leaves alternate, simple, entire, sheathing at the base, flat or channelled, soft, nerved, sheath entire. Flowers $ , or incomplete by arrest of the ovary, regular or sub-irregular, usually blue, solitary, fascicled, umbellate or racemed, furnished either with bracts or with spatliaceous or cucullate 1-2-phyllous involucres. Perianth double ; the outer calyeine of 3 persistent sepals, the interior corolline of 3 distinct sessile or clawed petals, very rarely united at the base into a short tube ( Cynnotis ); caducous or marcescent, sometimes becoming fleshy after flowering ( Campelia ), one often dissimilar or obsolete ; aestivation imbricate. Stamens G, hvpogvnous, opposite to the sepals and petals, sometimes in two groups ( Dicliori - smidra), rarely 3-5 by arrest, some often antherless; filaments filiform, usually fur- nished with jointed hairs ; connective dilated; anthers introrse, or rarely one extrorse and 2 introrse in the same flower, 2-celled, cells divergent, marginal on the connec- tive, very rarely adnate to its anterior face, and contiguous parallel ( Dichorisandra ), dehiscence longitudinal, all fertile, or some sterile and deformed. Ovary free, 3-cel led ; style simple; stigma undivided, or obscurely 3-lobed, or sometimes con- cave (Cynnotis) ; ovules inserted at the inner angle of the cells, either more than two, peltate, 2-seriate on nerviform placentas; or 2 basifixed and collateral; or superimposed, 1 pendulous, the other erect. Capsule usually accompanied by the persistent perianth, 3-celled, or 2-celled by arrest, of 3-2 loculicidal semi-septiferous valves. Seeds few or solitary, ovoid, angular, peltate, or nearly square; testa mem- branous or rigid, rugose or foveolate, closely adherent to the fleshy dense albumen ; hilitm ventral and depressed, or at one end of the seed, and large. Embryo pulley- shaped, sunk in a pit of the albumen, diametrically opposite to the hilum ; radicle covered by a hood ( embryotegium ). PRINCIPAL GENERA. * Commelyna. * Aneilema. * Cyanotis. * Dichorisandra. * Tradescantia. Spironema. Campelia. Cochliostemma. i are distinguished from other Monocotyledonoiis families by their double perianth, clearly separable. like that of Alismacea, into calyx and corolla. Their habit and structure separate them fr. ‘in Jiiiutd!, t" which they were formerly united ; they approach Restiaccm, and especially Xyridece, in their antitropoua embryo and sht athing leaves ; hut these differ in several other characters, and notably in the form and situation of their embryo, which is lenticular and pressed against the outside of the albumen. Cotnmclyncct gmw in the tropics of both worlds and especially the New; a few are Australian, where they extend to .To0 south latitude. Some extend to 40° north latitude. Little is known of the properties of Commelyneat. Many species possess an abundant mucilage, which is alimentary after being cooked. The tuberous rhizomes of some contain, besides mucilage, starch, which adds to their nutritive qualities; such are Commelyna tuberosa, ccclestis, anyustifolia, stricta, Ac. : other Mexican species are administered in diseases of the liver. The rhizome of C. llumphii is praised as an emmenngogue. The tubers of C. mrdica are in use in China for coughs, asthma, pleurisy, and strangury. The herbage of Tradescantia malabartca , cooked in oil, is employed in the treatment of leprosy and ringworm. The Indians drink a decoction of Cyanotis axillaris for dropsy. Tradescantia diurtiica is prescribed in Hrazil. 870 L. XYRIDE7E. XLIX. MAY ACE YE} Kunth. [Moss-like slender creeping pellucid plants, growing in damp places. Stems branched. Leaves alternate, crowded, linear, emarginate, flaccid. Flowers £ , axillary, solitary, peduncled, white pink or violet. Perianth of 6 pieces in two series, marcescent ; outer of 3 herbaceous sepals ; inner of 3 membra- nous petals. Stamens 3, inserted on the base of the sepals ; anthers basifixed, spathulate, imperfectly 2-celled, introrse. Ovary 1-celled ; carpels opposite the petals ; style filiform, persistent ; stigma simple, minutely 3-lobed ; ovules sessile, horizontal, on 3 parietal placentas, orthotropous. Capsule membranous, 1-celled, loculicidally 3-valved, many-seeded. Seeds sub-globose, terminated by a conical tubercle ; testa , ribbed ; albumen dense, of radiating cells. Embryo minute, half immersed in the albumen at the end opposite the liilum. GENUS. Mayaca. A small order allied either to Commehjnece or to Xyridece and Restiacece, according to the value given to the position of the embryo with regard to the albumen. The species are all American, extending from Virginia to Brazil. — Ed.] L. XYRIDEAE? Kunth. [Herbaceous Rush-like or Sedge-like tufted erect usually rigid plants, often growing in watery places. Roots fibrous. Stems simple. Leaves radical, ensiform or filiform, base sheathing, often equitant. Flowers $ , in terminal solitary heads of densely imbricating 1 -flowered rigid scarious bracts. Perianth of 6 segments in two series ; 3 outer segments calycine, lateral, navicular, persistent, rigid; anticous more membranous, larger, sheathing the lateral, caducous ; 3 inner segments petaloid, clawed, claws more or less connate. Stamens 3-6, inserted on the inner perianth- segments, 3 opposite fertile, the others sterile penicillate or obsolete ; filaments fili- form ; anthers extrorse, 2-celled, dehiscence longitudinal. Ovary 1- or incompletely 3-celled ; style terminal, 3-fid ; stigmas 3, 2-co -lobed ; ovules numerous, basal, ortho- tropous, funicle elongate. Capsule 1-celled, loculicidally 3-valved ; or 3-celled and fenestrate at the base, operculate above. Seeds numerous, angled or globose ; testa coriaceous, striate or costate ; albumen fleshy. Embryo minute, lenticular, placed outside the albumen at the end opposite the liilum. PRINCIPAL GENERA. Xyris. Abolboda. Xyridece ave closely allied to Commelynece and Eriooaidonece, as also to Rcipateacece , from which they differ in the embryo not being immersed in the albumen. They are natives chiefly of swamps in tropical and warm countries. The leaves and root are used in the cure of itch and leprosy in India and South America. — Ed.] 1 This Order is omitted in the original. — Ed. 2 This Order is only alluded to in the original at the end of Eriocaidoncce (p. 873). — Ed. LII. ERIOCAULONEiE. 871 LI. FLAGELLA RlEAf Endlicher. Brongniart places near Restiacece Flagellariece, composed of the genera Flayel- laria and Joinvillea, of which the following are the characters : — Flowers § . Sepals 3, distinct. Petals 3, distinct, scarious, like the sepals. Stamens 6, hypogynous, free; anthers introrse. Ovary of 3 1-ovuled cells; stigmas 3, apical, divergent, filiform, papillose within from bottom to top ; ovules pendulous by a short funicle from the top of each cell, orthotropous, micropyle inferior. Fruit a 1-2-seeded berry. Seed with crustaceous testa ; albumen farinaceous. Embryo minute, auti- tropous, lenticular, outside the albumen, covered with an embryotegium. — Reedy or sannentose herbs. Leaves with long sheaths and parallel nerves. Herbs of tropic.il Asia, Australia anil New Caledonia. LII. Eli IOC A ULONEfE. (Jl'NCORUM genera, Jussieu. — EriocaulonEvE, L.-C. Richard.) Flowers monoecious or dioecious. Perianth inferior, double, the outer 2-8-phyl- lous, the inner sub-tubular, 3-2 -fid. Stamens double the number of the perigonial leaflets , inserted on the inner, the alternate often sterile. Ovary superior, of 2-3 1 -ovttled cells-, OVULES pendulous, orthotropous. Capsule 2-3 -celled, loculicidal. Seeds albuminous. Embryo globose or sub-lenticular, antitropous, outside the albumen. — Stem or scape. Leaves cauline or radical, semi-sheathing. Flowers in a capitulum. Herbs inhabiting swamps or flooded grounds, perennial, stemless, rarely caulescent, very rarely suflrutescent. Leaves linear, sub-fleshy, entire, sometimes fistular, nerves striate, semi-sheatliing at the base, the radical crowded, the cauline alternate. Flowers minute, united into an involucrate capitulum, on a usually fleshy receptacle, incomplete, monoecious in the same capitulum, or rarely dioecious, each furnished with a bract, and accompanied by hairs or scales. Perianth double, the inner usually discoloured. — Flowers Outer perianth of 2 lateral sepals, or 3, of which 1 is posterior ; inner tubular, sub-campanulate ; limb 2-fid or 3-toothed or 3-fid ; segments imbricate, equal, or the anterior largest, aestivation imbricate. Stamens inserted on the tube of the inner perianth, equal and opposite to its divi- sions, or twice as many ; some larger, opposite to these divisions ; the others smaller, alternate, often antherless or rudimentary ; filaments subulate, inflexed in aestivation ; anthers 2-celled, very rarely 1-celled, dorsifixed, dehiscence longitudinal. Rudi- mentary ovaries 3-2, glanduliform or tuberculiform. — Flowers $: Inner and outer perianths 3- rarely 2-phyllous, the inner leaflets most delicate, sometimes replaced by 3 bundles of hairs ( Lachnocaulon , Tonina), sometimes the claws distinct and blades coherent ( Fhilodice ); staminodes 0. Ovary free, of 3-2 carpels, sometimes with a second series of superimposed and sterile carpels, simulating inner stigmas ( Pcepa - Inn thus) ; style terminal, very short; stigmas as many as carpels, simple or 2-fid, 872 LII. ERIOCAULONE^E. E. septangulare. 9 flower, dorsal face and bracts. E. septangulare. 9 flower, opened. Eriocaulon sepiungulare. Eriocaulon . Diagram 9» E. septangulare. 9 flower stripped of its bracts. E. quinquangulare. Pistil with three stigmas (mag.). E. septangulare. $ flower and bracts. E. septangulare. Ovary cut vertically (mag.). Eriocaulon. Diagram £. Eriocaulon. E. quinquangulare. Seed, Ovule (mag.). entire and cut vertically (mag.) LIII. RESTIACEiE. 873 surrounding the sterile carpels ; ovules solitary in eacli carpel, pendulous near tlie top of the inner angle, orthotropous. Capsule crowned by tlie style, surrounded by the perianth, 2-3-celled, loculicidal. Seeds pendulous, ovoid or. sub-cylindric, longitudinally ribbed ; ribs membranous, hyaline, breaking up into tine hairs ; testa coriaceous, shining ; endopleura 0 ; albumen farinaceous. Embryo diametrically opposite to the liilum, pressed to the outside of the albumen, antitropous, sub- globose or lenticular. PRINCIPAL GENERA. Eriocaulon. Tonina. Philodice. Psepalanthus. Lachnocaulon. Eriocaidonctr, with Commcltjncec , Xyrideee, Restiacece, and Ccntrolcpidefc, form Von Martins’ class of Enantiohlastece, so named on account of the invariable position of the embryo at the opposite end of the seed to the hilum. Eriocatdonece approach Restiacecc in the ovary with 2-3 1-ovuled cells, the pen- dulous and orthotropous ovule, the structure of the seed and the direction of the embryo; hut Restiacea; are separated by their inflorescence, the completely glumaceous perianth, the 1-seriate stamens, 1 -celled anthers, and the smooth testa with naked or strophiolate hilum, See. Enocaulonew are tolerably rich in species; two-thirds of the family are tropical American, and half of the remainder are North Australian. A few species are found in tropical Asia, Madagascar, and the islands of South Africa. They are less rare in North America, where they extend to 44° N. latitude; one alone ( Eriocaulon septamjulare ) inhabits North America and Scotland, where it has been met with in Skve [and in the west of Ireland]. Respecting the properties of this family, nothing is known except as regards Eriocaulon setaceum, of which the herbage, cooked in oil, is used as a popular antipsoric in Iudia. LIII. REST [ ACE sE. (Juncorum genera, Jussieu. — Restiacea, Br. et Centrolepidea:, Desvaux.) Flowers diclinous. Perianth inferior, calyciform, of 2 6 2 -seriate glumes, or imperfect. Stamens 3-2. Ovary 3-2-1 -celled ; ovules solitary, orthotropous, pendu- lous. Fruit a S-celled cap>side or a nut. Seed albuminous. Embryo antitropous, outside the albumen. — Stem or scape. Leaves all radical or cauline, sheathing. Flowers spihed or racemed. Herbs or undershrubs with a creeping rhizome. Stems branclied-knotty or simple. Leaves either all radical, crowded, or cauline alternate, sheathing at the base, sheath split, blade entire, narrow-linear or arrested. Flowers regular, spiked racemed or panicled, mixed with scarious bracts, usually diclinous, rarely 5 {Bepy- rodia). Perianth glumaceous, of 4— G 2-seriate glumes, 2 of the outer lateral, and 1 posterior - the inner larger or smaller, persistent in the flowers ; sometimes of a single scale. Stamens 2-3, opposite to the inner glumes, and inserted at their base, sterile or absent in the $ flowers; filaments filiform, usually free; anthers 1 -celled, dorsifixed, peltate, rarely 2-celled ( Byginia , Lepidanthus, Anarthria, &c.), dehiscence longitudinal, introrse. Ovary free, 3-2-celled, rarely 1-celled ( Chadanthus , Bepto- carjms, Loxocarya ); styles 1-3, continuous with the back of the carpels, distinct, or jointed at the base ; stigmas 1-3, plumose, usually (?) introrse ; ovxdes solitary in each cell, pendulous, orthotropous. Fruit a loculicidal capsule, or a follicle or nut. 874 LIII. RESTIACEiE. Restio tetraphyllus. (Oryza, Potamnphila, Hydrocltloa, Zizania, Pharus, Nastus, Bambusa, &c.), rarely 4 ( Mierolmia, Anomochloa, Tetrarrhena), or 2 (Anthoxantlium, &c.), or 1 (Uniola, &c.), very rarely indefinite, when the ovary is arrested (Luziola, Pariana) ; in the hexandrous flowers wliorled around the ovary ; in the triandrous, 2 opposite to the lateral nerves of the upper palea, and 1 to the lower glumelle ; in the diandrous the outer is wanting ; in the monandrous the outer only, is present ; filaments capil- lary, free, or sometimes cohering at the base ; anthers dorsifixed, 2-celled, linear, usually 2-fid at the two ends, dehiscence lateral, longitudinal, or very rarely apical. Ovary free, 1 -colled, 1-ovuled; styles 2, very rarely 3, free or connate at the base, sometimes united into an undivided style; stigmas with simple or branched hairs ; ovule adnate to the posterior part of the ovary throughout its length, or by its base, very rarely suspended below the top. Fruit free or adnate to one or both of the glumelles, dry, indeliiscent ; pericarp usually thin, membranous or coriaceous, and adhering to the seed (caryopsis), rarely membranous and dehiscent (Sporobolus), usually presenting a dark mark at the level of the hilum, where the testa is attached to the pericarp; albumen farinaceous, or between farinaceous and horny, very thick. Embryo outside of the albumen, in a pit at the base of its anterior face ; cotyledon scutellate, often split along its outer face, and showing the radicle and plumule ; phnnnb terminal, conical, composed of 1-4 primary convolute leaves ; radicle basilar, thick, obtuse, often with several tubercles which are perforated at germination by radical fibres, each springing from one of these tubercles, and surrounded at their base by a small sheath (c'oleorrhiza), the remains of the perforated portion of the embryo. 1 T?v recent authors the term ylemc is, ns lu re, eon- called empty y/umrs ; and the lower or outer glumelle is lined to these two bracts; by other authors these arc called flowering glume. — Ed. 3 L 882 LV. GftAMINEiE. Tribe I, ANDROPOGONEM Spikelets usually geminate or in tlirees, polygamous, the middle fertile, the lateral $ or neuter, very rarely all fertile, in a spicate or branched, or sometimes digitate panicle, more rarely in a spicate raceme. Fertile spikelets composed of a 5 flower accompanied hy a lower $ or neuter one. Glumes sub^equal, often longer than the 5 flower, or rarely unequal, the lowest largest. Glumelles membranous, rarely cartilaginous ; lower glumelle of the $ flower facing the upper glume. Stamens 8. Stigmas usually long, protruding under or at the top of the flower. Caryopsis with a punctiform hilary spot. PRINCIPAL GENERA. * Andropogon. * Erianthus. . * Saccharuin, Ischcenmm. Imperata. Tripsacum, * Sorghum. Tribe II. PANICEAE, Spikelets all fertile, in a spicate or branched, sometimes digitate panicle, com- posed of one $ flower accompanied by one lower $ or neuter flower. Lower glume smaller than the upper, often minute or arrested. Glumelles usually cai’tilaginous, shining ; lower glumelle of the § flower facing the upper glume. Stamens 3. Stigmas usually long, protruding at or under the top of the flower, Caryopsis with a punctiform hilary spot, PRINCIPAL GENERA. Reimaria. Oplismenus. * Pennisetum. Paspalum. * Setaria. * Penicillaria. * Panicum. Digitaria. Tragus. Tribe III. ORYZEJE. Spikelets all fertile, in a raceme or panicle, 1-flowered, often with arrested glumes, or 2-3-flowered, the lower flowers with 1 glumelle, neuter, the terminal only fertile. Glumelles parchment-like, stiff*. Stamens usually 6, often 3 ( Hygroryza , Ehrharta, Leersia), or 4 (Microlcena, Tetrarrhena), rarely 1 ( Leersia ). Stigmas diver- gent, protruding at the sides of the flower. Caryopsis with a linear hilary spot. PRINCIPAL GENERA, Pliarus. Zizania. Leersia. Ehrharta. * Oryza. Anomochloa. Tribe IV. PHALARIDEJE. Spikelets 5 , monoecious or polygamous, in a spicate panicle or in spikes, some- times with 2 flowers, § ? or $ ; sometimes with 2-3 flowers, the upper only fertile. Glumes usually equal, longer than or as long as the flower. Glumelles more or less LV. GRAMINEiE. 888 hardened after flowering ; lower glumelle of the fertile flower facing the lower glume. Stamens 3-2. Stigmas usually elongated or filiform, protruding at the top or sides of the flower. Caryopsis with a linear or punctiform spot. PRINCIPAL GENERA. • Anthoxanthum. * riialaris. * Zt>a. Jlierocbloa. Lygeuin. * Coix, Tribe V. rilLElNEJE. Spikelets all fertile, laterally compressed, in a spicate panicle or spike, with one 5 flower, with or without the pedicellate rudiment of a second flower. Glumes sub-equal or unequal, as long as or longer than the flower. Glumelles membranous ; lower glumelle facing the lower glume. Stamens 3-2. Stigmas elongated, protruding at the top of the flower or spikelet. Caryopsis with a punctiform liilary spot. PRINCIPAL GENERA. * Phleum, Alopecurus, Crypsis. Beckinannia. Mibora, Cornucopia, Tribe VI. A GROS T1DE2E. Spikelets nil fertile, more or less laterally compressed, in a branched or spiked panicle, with a single flower, rarely accompanied by the pedicellate rudiment of a second upper flower. Glumes sub-equal or unequal, usually longer than the flower. Glumelles between membranous and herbaceous, as are the glumes, the lower mut icons or aristate ; awn usually dorsal, and facing the lower glume. Stamens 3, rarely 1-2. Stigmas usually sessile, protruding laterally at the base of the spikelet. PRINCIPAL GENERA. Chse turns. Gastridium. China. Polypogon, Sporobolus. Mublenbergia. * Agrostis. Tribe VII. STIPE2E. Spikelets all fertile, sub-cylindric or compressed, in panicles containing one 5 flower. Glumes sub-equal or unequal, equalling or longer than the flower. Glumelles becoming coriaceous when ripe, the lower answering to the lower glume, often convolute, awned at the tip; awn simple or 3-fid, very rarely muticous. Stamens 3. Stigmas protruding laterally towards the base of the spikelet. Caryopsis with a linear liilary spot towards its middle or near its top. PRINCIPAL GENERA. * Milium. I.asingroslis. * Stipa. Piptntherum. Mncbrocbloa. Aristida. 3i'I 884 LV. GRAMINEiE, Tribe VIII. AREN DINE AE. Spikelets all fertile, in a branched or spicate panicle, sometimes with 1 ? flower, with or without the pedicellate rudiment of an upper flower ; sometimes many- flowered. Glumes equalling or longer than the flowers. Glumelles usually sur- rounded at the base with long hairs, membranous-herbaceous, as are the glumes ; the lower awned or muticous, and facing the lower glume. Stamens 3, or rarely 2. Stigmas usually sessile or sub-sessile, protruding from the sides or towards the base of the spikelet. Caryopsis with a punctiform or linear hilary spot, PRINCIPAL GENERA. * Calamagrostis. * Arundo. Phragmites. Deyeuxia. Ampelodesmos. * Gynerium. * Ammophila. Tribe IX. CHLORIDES. Spikelets all fertile, in unilateral digitate or panicled spikes, sessile on the inner face of a continuous rachis, laterally compressed ; sometimes with several flowers, the. 1-3 lowest 5, the upper rudimentary; sometimes with 1 5 flower, with or with- out the rudiment of a second flower. Glumes more or less unequal, usually shorter than the flowers. Glumelles membranous, the lower answering to the lower glume. Stamens 3. Stigmas usually elongated, erect, protruding towards the top or above the middle of the flower. Caryopsis with a punctiform hilary spot. PRINCIPAL GENERA. Cynodon. Cliloris. Leptochloa. IMctylotennim, * FJeusine. Spartina. Tribe X. EAPPOPHOREJE. Spikelets all fertile, in cylindric-globose spikes, or in a panicle ; more or less laterally compressed, with 2 or several flowers, the lower 1-5 $ , the upper usually imperfect. Glumes more or less unequal. Glumelles membranous or sub-coriaceous, the lower with 9-13 nerves, often prolonged into bristles or teeth ; lower glumelle of the base of the spikelet answering to the lower glume. Stamens 3, rarely 2. Stigmas erect, protruding at the top of the flower. Caryopsis with a punctiform or oblong liilarY spot. PRINCIPAL GENERA. Ecliii'-uia. Sesleria. Tribe XI. A VENE2E. Spikelets all fertile, pedicelled or sub-sessile, in a branched spreading or spicate panicle, more rarely in a raceme or spike, 2-many-flowered, the upper or lower flower often $ or rudimentary. Glumes large, sub-equal or unequal, usually almost LV. GRAMINE2E. 885 completely embracing the flowers. Glumelles membranous or somewhat coriaceous, the lower usually awneil ; awn usually dorsal, geniculate and bent below; lower glumelle of the flower at the base of the spikelet answering to the lower glume. Stamens 3, rarely 2. Stigmas sessile or sub-sessile, divergent, protruding from the sides of the flower. Caryopsis with a linear or punctiform liilary spot. PRINCIPAL GENERA. * Aira. * Lagurus. Gaudinia. Corynephorus. Trisetum. Arrhenatherum. Deschampsia. * IIolcus. llantbonia. Airopsis. * Avena. Uralepis. Monandraira. Tribe XII. FESTUCEJE. Spikelets all fertile, pedicelled, or more rarely sub-sessile, in a branched spreading or spicate panicle, more rarely in a raceme or spike, 2-many-flowered, the upper or lower flower often rudimentary or $ . Glumes 2, often shorter than the contiguous flower. Glumelles 2, membranous or somewhat coriaceous, the lower awned at or below the top, awn not twisted or muticous ; lower glumelle of the flower at the base of the spikelet answering to the lower glume. Stamens 3, rarely 2-1. Stigmas usually sessile or sub-sessile, divergent, protruding at the sides, and usually towards the base of the flower. Caryopsis with a, linear or punctiform liilary spot. PRINCIPAL GENERA. • Poa. Kragrostis. Glyceria. Oreochloa. Diarrhena. Catabrosa. * Jlriza. Melica. Moliuia. Naatus. Kceleria. Scbismus. * Dactylis. * Cynosurus. * Arundinaria. Lamarckia. * Festuca. * Bromus. Uniola. * liainbusa. Tribe XIII. TRITICEJE . Spikelets all fertile, or rarely polygamous, spicate, sessile or sub-sessile on the notches of the usually waved rachis ; 1-2-many-flowered, the upper flower usually arrested. Glumes 2, rarely 1, variable in length. Glumelles herbaceous or sub- coriaceous, rarely membranous, the lower awned at or below the top, or muticous ; lower glumelle of the base of the spikelet answering to the lower glume. Stamens 3, rarely 1. Stigmas sessile or sub-sessile, divergent, protruding from the sides and often towards the base of the flower. Caryopsis with a linear liilary spot. PRINCIPAL GENERA. * Loiium. *Triticum. Psilurus. * Ilordeum. yEgilops. Lepturua. * Elymus. Nardus. Ilottboellia. * Secale. Graminea form one of the most natural groups of plants ; it is principally to their numerous species that the name of Grass is given ; but in tropical Asia we find Graminea: of great height and even forming true trees. Like all clearly defiued families, they have few affinities with other orders, and they are really only related to Cy per acta , called by the ancients ‘ spurious Grasses ’ ( Graminea: spuria), from which they differ by their parietal o\ ule, their seed with abundant farinaceous albumen, their leaves with a split 88(3 LY. GRAMINEvE LV. GRAMINEjE. 887 Trip*irnm. Monoecious inflorescence. Ont. Oat. Caryopsis cut vertically. Cat) opals o, ovary ; r, testa ; a, albumen ; (uiag.). c, cotyledon ; a, plumule; it, radicle. Oat. Embryo (mag.). Jlonandi'airct g Utuea Monandrous flower (mag.). Wheat. Compound spike. Wlicat. Cnryo]»la (mag.). Wheat. Embryo (mag.). Monandraira glauca. Diagram. Rico, Flower (mag.). Rice. Caryopsis (mag.). 888 LY. GRAMINEiE. Coix Lacryma. Diagram 9. A, /?, axis ; c, bony involucre, repre- senting the outer glume and envelop- ing the 9 flower ; d , inner glume ; e , outer glumelle ; /, inner glumelle ; gf h, hypogynous scales ; i, ovary. Diagram of an inflorescence of thr'ce one-floweted spikelets. A, axis ; B , bract acting as a common spathe ; b , b\ b ", secondary spathes ; e, e/, e ", glumelles enveloping flowers with four stamens. Anomochloa marantoidea . Tetrandrous flower,, partially c Glyceria fluitans. Plotter with hypogynous scales united into a cup (mag.)* Millet Panicum glaucum . ( Panicum miliaceum), Caryopsis Caryopsis (mag.). (mag.). Coix Lacryma . Monoecious inflorescence. Gynerium argenteum. Partial inflorescence . Partial inflorescence 9* Sorghum . Caryopsis (mag.). Sorghum. Embryo (mag.). LY. GRAMINEiE. 889 Bromus teclorum. Bromus Schraderi. SaCcharum Ravenna \ Bye. Bye. Caryopsis (mag.). Embryo (mag.). Caryopsis (mag.). Caryopsis (mag.). Embryo (mag.). Sporobolus. Caryopsis after the expul- sion of the seed. Sporobolus. Caryopsis expelling its seed. Tragus racemosus. Caryopsis (mag.). Rottboellia. Caryopsis (mag.). Maize. Germinating seed (mag.). Maize. Caryopsis. Lolium perenne. Embryo (mag.). Lolium temulentum. Caryopsis (mag.). Stipa. Caryopsis (mag.). 890 LY. GRAMINEiE. Bambusa Thouarsii . s Bamboo ( Bambusa Ml take). Flower (mag.). Bamboo. Embryo (mag.). JEgilops ovata, Caryopsis (mag. ligulate sheath, their usually fistular culm, with swollen knots, which form septa at the point of junction with the leaves. The arborescent Graminece, and notably the Bamboos, of which the flower is hexandrous and furnished with a whorl of three glumelles, offer some points of resemblance with Palms. Brongniart has recently observed the phenomena of sleep in Strephium guyanense , belonging to the tribe Panicece ; its leaves, which spread during the day, are erect and close Over each other at night, like those of the Sensitive-plant and some other Mimosece. This immense family is distributed over all the globe, from the tropics to the frozen regions ; the majority inhabit the temperate zone, but Panicece , Cliloridece, Oryzece, Andropogonece and Bamboos are especially tropical. The native country of the cultivated cereals is still unknown. Graminece contain in their herbage, and especially in their seeds, nutritious principles, which entitle them to the first rank amongst plants useful to man, and which are of the greatest importance in an economic and political point of view. Besides starch, sugar and mucilage, they yield sulpho-azotized matters (Jibrine, casein, albianine), elements essential to the formation of flesh in animals, and especially phosphate of lime, which is the basis of their bony framework. The Cerealia, whose seeds abound in starch, azotized matter and phosphates, are: — Wheat ( Triticum sativum), Rye {Secede cereale), Barley (Hordeum vidgare, distichum , &c.), Oats {Aetna sativa ), all cultivated by the Caucasian race in the northern and temperate regions. Rice (Oryza sativa) and Millet ( Panicum miliaceurn) originated amongst the Asiatic LV. GRAMINEiE. 891 races, as well as Eleusine conic ana, which is a great resource in India when the Rice crop fails. Maize (Zea Mays), which formerly served as food to the American races, is now spread over the whole world. Bromus Mango, a species near our B. secalinus, was cultivated in South Chili before the arrival of Europeans ; the Araucanians have now abandoned it for the cereals of the Old World. Sorghum vulgare and Penicillaria spicata are the support of the negro race. The inhabitants of East Africa cultivate Poa ahyssinica, Eleusine, and our European cereals, which are often infested by various cryptogamic parasites (Rust, Smut, Ergot), of which we shall treat under Fungi. The Sugar-cane ( Saccharum officinarum) is, in all probability, a native of tropical Asia ; it has been cultivated from very ancient times in the East Indies. After the conquests of Alexander it became, known in Europe ; and towards the end of the thirteenth century it was introduced from India into Arabia and the Mediterranean region. At the beginning of the fifteenth century the Portu- guese planted it in Madeira, where it prospered, and whence it passed to the Canaries and to St. Thomas. In 1506 the Spaniards introduced it into St. Domingo ; it rapidly increased there, and soon spread over all tropical America, where it has produced numerous varieties. It is especially the lower part of its culm which yields the sap from which is extracted the readily crystallizable principle so universally used as a food, condiment and medicine. Cane-sugar is fermentable, like that of many other vegetables ; and it is from the non-crystallizable syrup (treacle), which remains after the crystallization of the sugar, and which is submitted to spirituous fermentation, that rum is obtained by distillation. Sorghum sac- charatum, the stem of which is very rich in sugar, is cultivated in China, Africa, &c. A considerable number of Gramineee are medicinal. The rhizome of the Dog’s-tooth Grass ( Triticum repens), which infests cultivated ground in Europe, is used as an emollient and aperient tisane ; other Euro- pean species (T. glaucum m\A junceum, and Cynodon Dactylon) possess similar properties; as also does the Cynodon lineare, of India, and Andropogon bicornis, of tropical America. Aruudo Dona.v is a large reed, of which the root is diuretic and sudorific. Formerly that of Phragmites communis was prescribed as a depurative and anti-syphilitic. Calamagrostis is considered diuretic by the French peasants. Pcrotis lati- foliit has the same reputation in India. The mucilaginous seeds of Barley are still used, as in the time of Hippocrates, in the preparation of a diluent and cooling drink ; they are also used in the making of beer. Under the influence of moist heat they are allowed to germinate, a process which converts the starch into sugar ; this sugary matter is dried and pulverized, and its decoction, flavoured with hops, is submitted to spirituous fermentation. The seeds of Rice are emollient, like those of Barley, and slightly astringent. They are equally ferment- able, and yield by distillation an alcohol called arrack. Cui.v Lachryma (Job’s Tears), a native of tropical Asia, and cultivated in China [and India], is a monoecious Grass, remarkable for its £ spikelets enveloped in an involucre which becomes stony when ripe ; its seeds are considered in China to be tonic and diuretic, and are administered in a tisane in phthisis and dropsy. The root of Manisuris granularis is prescribed in India for obstructions of the bowels. A decoction of the seeds of Dactyloctenium eegyptiacum is renowned in Africa as an alleviator of nephritic pains, and its herbaceous parts are applied externally for the cure of ulcers. Andropogons have aromatic roots, whence some species are used in India as stimulants. Such are A. Nardus, or False Spikenard; A. Iwarunkusa, Parancura, and citratus (Lemon Grass). The leaves of the Sweet Rush ( A. hunger and Schccnanthus) , of Africa and Arabia, are prescribed in the East for their stimulating, antispasmodic, diaphoretic qualities. The Vetiver or Viti-Vayr [or Kus-Kus], is the very sweet-scented fibrous root of Andropogon muricatus, first imported into Europe about fifty years ago, which is used in India to perfume rooms and to preserve stuffs and clothes from insects ; according to Vauqueliu, it contains an aromatic principle, analogous to Myrrh, and possesses the stimulating properties of its congeners. [The roots are made into fans, and worked into slips of bamboo to form the screens used to mitigate the heat in India.] The Bamboo ( Bambusa arundinacea and verticillata [and many other species]) is used in building in China and Japan. The young shoots of these two trees contain a sugary pith, which the Indians seek eagerly; when they have acquired more solidity a liquid flows spontaneously from their nodes, and is converted by the action of the sun into drops of true sugar. The internodes of the stems often contain siliceous concretions, of an opaline nature, named tabasheer [a substance presenting remarkable optical properties]. Several American Bamboos contain a very fresh drinkable water, sought by Indians and travellers. 892 LV. GBAMINEiE. Most of our native Graminece form a pasturage for flocks, and, when dried, become hay, which has an agreeable scent, especially when mixed with Anthoxanthuln oduratum , the roots of which contain benzoic acid. Some species are too siliceous, or are armed with awns which may penetrate the skin, or irritate the intestines of the animals which have eaten them ( Calanuigrostis , Stipa , &c.) ; others are purgative (Bromus catharticus, &c.) ; others poisonous, as the Darnel ( Lolium temulentum), the seeds of which, if mixed with those of cereals, cause vomiting, giddiness and intoxication. The Molinia ccerulea, a native of damp meadows, becomes dangerous to horses towards the flowering season. Festuca quadri- dentata, common in Peru, is eminently poisonous and mortal to cattle. The straw of our cereals, besides its use in agriculture, is also used in the manufacture of hats and bonnets, and especially of Leghorn hats, which rival those of Panama in fineness and high price. Lyyeum Spartium [Alpha Grass] and Macrochloa tenacissima [Esparto] are used in the manufacture of paper, baskets, &c. Various Graminea are ornamental garden plants. The Provence Cane (Arundo Donax ), of South Europe, is cultivated as an economic and medicinal plant ; we have indicated the properties of its root ; its long solid and light stems are of various uses; they are made into fishing-rods, trellis-work, &c. It flowers but seldom even in its native climate, and never iu the north of France, where it does not flourish; this peculiarity, which is shared by its congener, the common Reed, is probably owing to its rapid propagation by rhizomes, which renders its reproduction by seeds superfluous. The Mauritanian Reed ( Arundo niauritanica) differs from the preceding in its lower growth (6 to 10 feet), and especially in flowering abundantly, even in the climate of Paris. The Pampas Grass ( Gynerium argenteum), a native of the temperate regions of South America, aud introduced a few years ago into European gardens, is universally admired ; it is dioecious, and the female plants are distinguished by the larger size and greater spread of the panicles. Only two or three species of Bamboos are hardy in our northern climates ; these are all natives of Central China or of the Himalaya. They are the Black Bamboo (B. Metake, and B. glaucescens) . The Large Bamboo (B. arundinacea) , a tree of South China and India, is one of the most ornamental species, but it only succeeds in the hottest parts of Mediterranean Europe. The Arundinarias of the Himalaya are true Bamboos in habit, foliage, and the woody consistency of the stem. One species only, A. falcata, has been introduced into European gardens ; it stands the winters as far north as 43°, and is even cultivated with some success in the west of France. Here and there in the gardens of the Mediterranean region the Ravenna Cane ( Saccharum Raoennce) is met with, attaining nearly the stature of the Sugar-cane ; and the Banicum plication, a plant suitable for the ornamentation of lawns, also flourishes in the same locality. The Canary Grass, or Gardener’s Garters ( Phalaris arundinacea ) [which produces Canary-seed], presents a variety with white striped leaves, of some value as an ornamental plant, [as does the common Dactylis glomcrata), Briza , Agrostis, Festuca, Lolium, and Aim are principally used to form lawns and edgings. CLASS III— ACOTYLEDONS. I. FILICES , L. Acotyledonous plants, very generally perennial and terrestrial, stemless, caulescent, or arborescent. Fronds springing from the upper surface of the creeping rhizomes, or forming regular crowns which terminate erect stems ; blade leafy, crozier- shaped in ver- nation, stomatiferous, simple, pinnatifid or pinnatisect. Reproductive organs composed of capsules (sporangia) collected into groups (sori), situated on the nerves, at the back or margin of the frond. Sort usually covered ivith a pellicle (indusium or involucre). Sporangia opening lengthwise, or girt by an elastic ring which unrolling tears them irregularly. Spores numerous, at first collected in fours in the cells (mother-cells), filling the sporangium, then freed by the decay of these cells, and developing on the damp soil a cellular expansion (prothallus), on the lower surface of which are developed : — 1. Cellular bodies (antheridia) containing flattened threads, coiled in a helix, furnished with cilia, and moving actively (antherozoids) ; — 2. Cellular sacs, open at one end (archegonia), into which the antherozoids enter to fertilize a contained vesicle which is destined to reproduce the plant. Perennial, very rarely annual ( Gymnogramme leptophylla) , terrestrial, or very rarely aquatic [Ceratopteris) . Stem sometimes forming a rhizome, which is tuberous and fleshy [Angiopteris) , or creeping on soil or rocks or trees, sometimes vertical and arborescent, or rarely twining ( Lyg odium ), or sub-sarmentose and dichotomous (Gleichenia) . It is composed of fibro-vascular bundles, disposed in a more or less regular circle around a copious cellular tissue ; each bundle presents at its circum- ference a black zone formed of woody fibres ( prosenchyma ), and a white centre formed of annular and rayed vessels. The central cellular tissue of the stem com- municates, through spaces between the vascular bundles, with an outer zone of similar tissue. The whole is surrounded by a bark formed of the persistent bases of the branches. Foliiferous branches {fronds), springing sometimes from the upper surface of the rhizome, at greater or less distances, and becoming partially or wholly disjointed as the stem lengthens, and new fronds are developed, sometimes crowded and covering the rhizome [then called caudex ], the tip of which turns up and emits a crown of fresh fronds {Struthio pteris germanica, &c.). This arrangement forms the passage to Tree-ferns, in which the stem ( caudex ) rises vertically, in some species attaining a height of 50 to 65 feet. This stem [often called trunk] grows not only in diameter, but in length, as is shown by the scars of the fronds being at first close together, and afterwards sundered, the spaces between them increasing. Ferns, whether creeping or erect, give off numerous roots, which in the arborescent species extend 894 I. FILICES. Asplenium . Portion of fructiferous frond. Portion of fructiferous front. Adianlum. Portion of fructiferous frond. Dicksonia antarcticci. Transverse section of rachis. Polypodium vulgare. Transverse section of rhizome. Poly pod i u m v u l gave. Transverse section of base of rachis. Polypodium vulgare . Transverse section of middle of rachis. Adiantum trapeziforme. Transverse section of rachis. 895 Polystichum aculeatum. Transverse section of rachis. I. FILICES. Polystichum. Portion of fructiferous frond. Opmunda regal is. Transverse section of rachis. Lyjodi u m palma tu m . Osmzmda regal is. Portion of fron h Cheilanthes odora. Transverse section of rachis. Todea a/ricana. Sporangium (mag.). Scolopendrium officinale. Transverse section of rachis. Gleichenia . Portion of fructiferous frond. Gleichenia. Fructiferous pinna? (mag,). Aspidium. Portion of fructiferou frond. 1 The annulus should have been represented as more oblique. — Ed. Gleichenia polypodioides. Transverse section of rachis. 896 I. FILICES. Hymenophyllum . Portion of fructiferous frond. Hymenophyllum. Sporangia exposed by the removal of one valve of the indusium II ym en ophyllum . Sporangium seen in front (mag.). Pteris aquilina. Portion of fructiferous frond. Pteris aquilina. Prothallus developed. (Thuret.) Indusium laid open to show the insertion of the sporangia. i % 1 V* ‘ Pteris aquilina . Anthcrozoids (mag.). (Thuret.) I. riLICES. 897 Cyathea. Indusium seen in front, beginning to open. Cyathea. Sporangium (mag.). Cyathea. Indusium opened, showing the sporangia. Nephrodium. Nephrodium. Sporangium Dehiscing sporan- closed (mag.). gium (mag.). Marattia. Portion of frond (mag.). Angiopleris. Portion of fructiferous frond. frond. 3 M Angiopleris. Portion of frond (mag.). Marattia. Portion of fructi- ferous frond. 898 I. FILICES. Cystopteris. Sporangia exposed by turning back the indusium. Trichomanes . Sporangium seen in front (mag.). Trichomanes. Sporangium seen in profile. Cy.stopteris. Sporangium opening by a sort of accessory ring. Schizcea pusilla. Sporangium (mag.). Ceratopteris . Sporangium (mag.). Cystopteris. Ceratopteris. Spores (mag.). Spore (mag.). Woodsia. Sporangia surrounded by filaments representing the indusium. Alsophila australis. Young archegonium (mag.). (Bornet.) Alsophila australis . Adult archegonium (mag.). over tlie whole circumference ; these root-fibres are blackish glabrous or velvety, fragile, cylindric, usually mingled with russet scaly hairs, which are often also found on the aerial stem, on the rachis, and even on the principal nerves of the fronds. The fronds are rolled into a crozier before they expand, in such a way that their tip forms the centre of the crozier, and that their lower surface is outside. The petiole ( rachis ) is cylindric, compressed, or hexagonal at the base ; the blade, usually covered with a stomatiferous epidermis, is sometimes simple and entire, more frequently pinnatisect, or 2-3-pinnatisect ; pinnules sometimes extremely fine ( Trichomanes Pluma), nearly always continuous with the midrib of the secondary pinnae, some- times caducous ( Drynaria ), rarely membranous, pellucid and deprived of stomata (Hymenopliyllum) . The nerves of the fronds are slender and well-defined, some- times simple and springing laterally from the median nerve, sometimes forked and dichotomous, and often, in consequence of this dichotomy, forming a network with more or less regular and hexagonal meshes. In some genera they form transverse and regular arches, or large irregular meshes, whence spring short nerves which terminate in the middle of these cellular spaces. Further, the nerves often anastomose in arches near the median nerve, and give off on the outer side simple or forked or anastomosing and reticulate venules. The fronds are sometimes furnished with bulbils ( Hemionitis , &c.), or are radi- cant ( Asplenium rhizophyllum, Woodwardia , &c.) ; they are often very dissimilar in the same species [Platy cerium), some being sterile, others fructiferous. I. FILICES. 899 Reproductive organs composed of capsules {sporangia). Sporangia springing from the nerves, on the lower surface or near the margin of the fronds, and collected in groups {sori). Sori naked, or covered either with a fold of the margin of the frond, or with a prolongation of the epidermis ( indusium ). Sometimes their abundance in- duces the atrophy and more or less complete disappearance of the leaf-like blade of the frond, and they then form panicles or spikes isolated at the end of the general frond {Osmunda, Aneimia, Lygodium, &c.). Each sporangium is pedicelled or sessile, variously dehiscent, and usually furnished with a variously shaped elastic ring ; the sporangium contains numerous free reproductive spherical or angular corpuscules (spores), with a smooth warted or reticulate surface. These spores were originally enclosed by fours in cells, which afterwards decay. Under the influence of humidity [rather of drought] the sporangium opens or bursts, and the spores are elastically expelled. The spores when placed on damp earth at once begin to germinate by emitting a filament which develops into a small foliaceous cellular expansion, emarginate at the tip ( proembryo , prothallus ). On the lower surface of the protliallus are soon developed small cellular protuberances, usually resulting from the superposition of three cells, of which the lower acts as a support, and the upper as a cover to the middle one ; this latter contains a mucilaginous tissue, the cells of which con- tain flattened threads, coiled in a helix, furnished with a series of numerous short cilia, accompanied by a small vesicle ; these moveable bodies have been termed antherozoids, and the organ which contains them antheridia. In the vicinity of the antheridia appear, a little later, somewhat larger cellular ovoid or rounded organs, terminated by a sort of style, which is open at the period of fertilization. These cellular sacs, analogous to the ovules of Phanerogams, are named arcliegonia ; at the bottom of their cavity is seen a globose utricle which has been compared to the embryonic sac. In this utricle a vesicle soon appears from which the new plant will be developed. All the conditions for fertilization being thus arranged, the antherozoids break the wall of the antheridia, drawing after them the mucilaginous vesicles, and escape, executing, by means of the vibratory hairs at one of their extremities, rapid move- ments, which are assisted by the rain or dew which moistens the mucilage expelled with them from the mother-cell. They thus reach the canal of the arcliegonium, and fertilization is secured ; a small cellular mass is then developed in the fertilized arcliegonium, which lengthens into an erect axis, on the top of which fronds will be developed, and from the base lateral roots. The prothallus soon disappears. Some species, notably those which grow on rocks or on walls exposed to the heat of the sun, and the fronds of which are fragile, have the power of reviving after being almost entirely dried up. Tribe I. POLYPODIACE^J. Elastic ring generally narrow, prolonged from one side of the rather long pedicel, interrupted at the top or the opposite side near the pedicel. 3 m 2 900 I. FILTCES. Acrosticlmm. Doodia. Lonchitis. Notoelilaena. Woodsia. Adiantum. PRINCIPAL GENERA. Olfersia. Gymnogramme. Nepbrodium. Blechnum. Jlictyopteris. Dicksonia. Platycerium. Obeilantbes. Grammitis. Cystopteris. Asplenium. Dry n aria. Hemiouitis. Scolopendrium, Davallia. Polypodium. Cibotium. Woodwardia. Nipbobolus. Ceterach. Aspidium. Strutli iopteris. Pbymatodes. Tribe IT. GY A THEAGE2E. Elastic ring usually oblique, and completely surrounding the sporangium ; sporangium often compressed, sessile, or shortly pedicelled, not continuous with the ring. PRINCIPAL GENERA. Hemitelia. Matonia. Alsopbila. Cyatbea. Tribe III. HYMENOPHYLL EYE. Elastic ring nearly as in Cyatlieacece, but the sporangia are nearly globose, and the elastic ring is situated on a plane nearly perpendicular to the point of attach- ment of the sporangium. PRINCIPAL GENERA. Hymenophyllum. Trichomanes. Loxsoma. Tribe IY. CERATOPTERIDEAE. Elastic ring large, formed of vertical cells, not completely surrounding the sporangium, •which is sessile. GENERA. Ceratopteris. Parkeria. Tribe V. G LE TCHENIEJE. Sporangia solitary or grouped in definite numbers (2-3), sessile, globose ; elastic ring perfect, but not corresponding to the point of attachment of the sporangium. PRINCIPAL GENERA. Gleichenia. Mertensia. Platysoma. Tribe VI. LYG0DIE2E. Sporangia sessile, ovoid or turbinate ; elastic ring replaced by a sort of cap with radiating stria;, occupying the end of the sporangium, opposite to the point of attachment. PRINCIPAL GENERA. Aneiuiia. Lygodium. Mobria. Scbizgea. I. FILIOES. 901 Tribe YII. 0SMUNDE2E. Elastic ring embracing a part of the circumference of the sporangium, or reduced to a small disk of cells with thick walls. GENERA. Osmunda. Todea. Tribe VIII. MABATTIEJE. Sporangia free, appressed, in 2 rows, or in a circle, or confluent, and together resembling a several-celled capsule, deprived of rings, each opening by a slit or pore. GENERA. Kaulfussia. Angiopteris. Marattia. Dansea. Ferns present such marked characters that in all classifications they form a distinct group. Brong- niart, from whom we have taken most of the details relating to this important family, places near them Marsileacece, Lycopodiacece, Fquisetacece and Characece to form his class of Filicinece. lie has divided Ferns into several very natural tribes, founded on the structure of the sporangia and their mode of insertion. The numerous genera of this vast family have been classed according to the arrangement of the sori and indusia ; hut it must be observed that, in certain cases, the sori of the same species appear with and without indusium ; thus Polypodium rugulosum and Hypolepis tenella have been separated, though they are, in fact, the same species 5 the same may be said of Polystichum venustum and Polypodium sylvaticum, &c. ‘ Ferns inhabit the most different climates, from the polar regions ( Woodsia liyperborea, Pteris argen- tea, &c.), where, however, few species are found, to the tropics, where they are .abundant and varied. Many genera are indeed limited to equatorial regions, or extend hut little beyond, and then especially in the southern hemisphere. Few genera, on the contrary, are confined to a single continent, and those which are have generally but few species. Moot genera have a very wide range, a fact not only true of large genera as limited by Swartz and Willdenow, but generally of those into which they have been subdivided. Some tribes are entirely or almost entirely confined to hot regions ; as Cyatheacece, Cera- topterideee and Hymenophyllece, of which three species only ( Trichomanes radicans and Jfymenophyllum tunbridgense and TVilsoni ) grow in Europe. All the Tree-ferns, and particularly those of the tribe of Cyatheacece, are tropical, or extend but a little way into some islands situated far from the equator ( Alsophila Colensoi, Cyathea Smithii, of New Zealaud). The arborescent Dicksonice (D. antarctica, lanata, &c.), extend farther south in New Zealand ; and the Lomarias with an erect but short stem are found in the Magellanic lands. ‘ The family of Ferns comprises at least 3,000l described species (the proportion to Phanerogams being as one to thirty), of which about 150 to 200 belong to each of the temperate zones, and 2,000 to the tropical regions of both continents, and to the islauds included in this zone. In each of these zones the number of Ferns varies much, according to locality. A peculiar combination of climatic conditions is almost always essential to their existence, dry regions producing very few species ; damp, cool and shady places suit them better, and the number of species is so much the greater the more these conditions are fulfilled ; insular climates are therefore very favourable to them, and the predominance of Ferns in such has long been noticed. We know, in fact, that the smaller and more distant from continents islands are, the more maritime is their climate, owing to the habitual humidity of the air and its uniform tempera- ture, and the larger is the proportion which Ferns bear to rhsenogamic plants. ‘The family of Ferns, together with Conifcrcc, has more fossil representatives than any other 1 These numerical estimates need revision. — Ed. 902 II. OPHIOGLOSSEiE. throughout the series of geological formations, and Ferns are without doubt one of the most interesting of orders if looked at from this point of view. In fact, this family, so numerous and so widely spread over the surface of the globe at the present time, presents, in the most ancient of those strata which contain vege- table remains, species which appear almost identical, in many cases, with those now living. It predomi- nates even in those ancient strata composing the coal formation ; upwards of two hundred species being now known to be scattered for the most part through the coal measures of Europe and of some parts of North America.’ 1 The numerous species of the tribe of Polypodiaeece possess similar principles ; their frond is muci- laginous, slightly astringent, and sometimes sub-aromatic ; the rhizome is usually bitter, astringent, and somewhat acrid. Some species contain an adipose waxy matter, fixed and volatile oils ; others yield by analysis a principle analogous to manna. The rhizome and stem of a large number abound in starch. The rhizome of the Male Fern ( Nephrodium Filix-mas ), which grows in the forests of Central and South Europe, is much used as an anthelminthic. The various European species of Aspidium have the same property but in a less degree. Several American and tropical Asiatic species of Asplenium, Poly- podium, Diplazium, &c., are used in the same way as our Male Fern. The rhizome of Polypodium Cala- yuala is much valued in Peru as an astringent and diaphoretic. From the Maidenhair ( Adianlum Capillm- Veneris), which grows in the south of Europe, a bechic syrup is prepared ; Asplenium Triclio- manes, A diantum-nigrum, Ruta-muraria, from North Europe, possess analogous properties, as do the Canadian Maidenhair ( Adiantum pedatum) and other exotic congeners. Scolopendrium officinale, Hemionitis and Ceterach ojficinarum, all European plants, are employed as astringents and mucilages. The herbage of Aspidium frugrans, which has the scent of raspberries, is much esteemed in the North of Asia as an antiscorbutic, and the Mongols use it as tea. The rhizome of Aspidium Baromez, commonly named Scythian Lamb, is clothed with golden yellow hairs, whence perhaps was obtained the famous byssus of the ancients, with which they manufactured stuffs which fetched an extraordinary price ; its red and viscous juice is an esteemed astringent in China. The hairs which clothe the stem of some Polypodiums are renowned in the Antilles as a styptic, and English doctors use them as haemostatics, as well as the hairs of several Cyatheas from the Moluccas, which have been of late years prescribed under the name of Penjavar Yatnbi. [Those of several Polynesian species of Tree-fern (Cibotiutn) are extensively imported into Australia, and used to stuff pillows, &c.] The young mucilaginous shoots of several Ferns are eaten as a salad, especially in North Europe. Ceratopteris thalictroides is in tropical Asia considered a pot-herb. The rhizome of Pteris esculenta, a New Zealand species very near our Common Fern, serves as food to the natives, as do the tubers of Nephrodium eseidentum in Nepal. Cyathea medullaris, of New Zealand, contains in the lower part of its stem a reddish glutinous pith, which when baked acquires the taste of the radish, and is much liked by the natives. The stem of Gleichenia Ilermanni is starchy, somewhat bitter, sub-aromatic and edible. Aneimia tomentusa, with the odour of myrrh, Mohria thurifraga , of the Cape, which smells of benzoin, as well as Lygodium microphyllum and circinatum , have incisive and bechic properties. Marattiece inhabit America, Asia and Polynesia, but are not numerous ; they are very rare in south temperate latitudes. Some species are arborescent. The bruised fronds of Angiopteris evecta, a species spread over the Pacific Islands, communicate an agreeable scent to cocoa-nut oil ; its young shoots are edible. II. OPHIOGLOSSEbE , Br. Ophioglossew are separated from true Ferns by the nature of their rhizome, and the development and texture of their fronds, which are not rolled into a crozier in vernation, and by their sporangia being arranged in a longitudinal series on a sort Ad. Brongniart, Dictionnaire universel d' Histoire naturelle. in. EQTJISETACEiE. 903 of scape, at tlie end of which they form a simple spike {Ophioglossum), or a raceme (. Botrychium ). These sporangia have no ring, and contain smooth triangular spores, which ally Ophioglossece to Lycopodiacece, through the genus Phylloglossum. GENERA. Botrychium. Ophioglossum. Helminthostachys. Most Ophioglossece are exotic, nearly all are terrestrial, except O. pendulum , which lives on trees like some Lycopods ; some inhabit the Mascarene Islands and extra-tropical Australia ; they are rarer in the West Indies and in America between the tropic of Cancer and the equator; the number of European species is even fewer ; one of these also inhabits North America, another the north of Asia. One or two species are more frequent at the Cape. None have been observed in North Africa. All are mucilaginous, and a decoction of them is alimentary. 0. vulgatum was formerly esteemed as a vulnerary; it is still used as an astringent in angina. Helmintho- stachys dulcis, from the Moluccas, is succulent .and laxative; its young shoots are edible. The herbage of Botrychium cicutarium is a reputed alexipharmic in St. Domingo. Ophioglossum vulgatum. III. EQUISET A CEJE, D.C. (Filicum genus, L. — Gonopterides, Willdenow. — Peltata, Hoffmann.) Perennial Acotyledons, inhabiting moist places ; rhizome subterranean. Stems straight, cylindric, channelled, stiff, simple or branched, jointed, fistular ; joints accom- panied by sheaths denticulate at the top, from the base of which spring branches, which are whorled, and resemble the stems. Reproductive organs in catkins formed of numerous whorled peltate polygonal scales, arranged perpendicularly to the axis, bearing on their lower face 5-G-9 sacs (sporangia), which open longitudinally to emit free 904 III. EQUISETACEiE. globose smooth spores, accompanied by 2 spathulate filaments (elaters) ; spores in germi- nation forming a prothallus, like that of Ferns, on which are developed antheridia containing antlierozoids or archegonia, into which the antlierozoids enter for the purpose of fertilization. Equisetum. Eipe spore and elaters. E. fluvialile. Rhizome and tubers. Equisetum. Spore surrounded by its elaters. Equisetum sylvatkum. Equisetum. Clypeole furnished with sporangia. III. EQUISETACEiE. 905 Equisetum fluviatile. Fructiferous spike. Equisetum. Antherozoids. (Thuret.) Equisetum. Arcliegonium (mag.). ( Duval- Jouve.) Perennial terrestrial or aquatic plants ; rhizome subterranean, running, often branched, covered with brown hairs, joints sometimes bulbous. Stems straight in evolution, jointed, formed of cylindric regularly furrowed internodes, and terminated above in a ring, of which the free edge is elongated as a toothed sheath. A similar sheath terminates also the joints of the rhizome. Internodes of the stem fistular, closed above by a cellular diaphragm opposite the base of the sheath. Walls of the internodes composed of 2 concentric cylinders ; outer or cortical cylinder entirely fibro-cellular, and usually presenting large longitudinal cavities opposite the furrows of the internode ; inner cylinder formed of bundles of annular or spiral vessels, and presenting small longitudinal cavities opposite the ridges of the internode, and con- sequently alternate with the cavities in the cortical cylinder. The number and arrangement of these cavities (best seen in a transverse section of the stem) are a certain guide to the determination of the species, which are divided into vernal and c estival , according to the period at which fructification takes place. The stems are simple, or furnished with regularly whorled branches, invariably placed below the nodes and the commencement of the sheaths ; these branches, and the whorled branchlets which they sometimes bear, resemble the stem in structure, hut in some species they want the central cavity and the cortical spaces ; the cavities and fibro- vascular bundles of the inner cylinder, are however, always present ; the same is the case with the internodes of the rhizome. The epidermis of the stem, branches, and 906 III. EQUISETACEiE. sheaths is furnished with stomata, of which the position is always limited to those parts which cover a parenchyma filled with chlorophyll. The siliceous layer which covers the epidermis is looked upon by M. Duval-Jouve as a secretion from that part of the cells which is in contact with the air, and not as entering into the compo- sition of their membranes, as several authors maintain. Fructification in spikes or conical catkins, either sestival and terminal, or vernal and springing directly from the rhizome. Spike formed of several whorls of horizontal pedicels, vertically dilated at their free end into a peltate body ( clypeola ), bearing on its inner face 6-9 sporangia, whorled around the pedicel, and parallel to it. Sporangia, at the period of the emission of the spores, dehiscing longitudinally on the side facing the pedicel. Spores very numerous, free, uniform, spherical, and bearing two filiform ap- pendages ( elaters ) dilated at each end into a flattened very hygroscopic and spirally coiled spathula, which uncoils under moisture. Before expansion the elaters form, according to M. Duval-Jouve, a hollow sphere around the spore, their common point of attachment being on the equator, and their spathulate ends on the poles of the spores. The spores germinate as in Ferns, developing an irregularly lobulate dioecious or monoecious prothallus, which bears antheridia at the end of its lobes, and archegonia on the upper surface of the fleshy tissue of its base. The antheridia appear as ovoid swellings, composed of large cells enveloping a central group of prismatic cells, which soon multiply into a number of cellules, each containing a flattened ellipsoid globule. Soon after, the walls of these cellules dis- appear, and the globules (the future antherozoids) become isolated. After some days there appears within the globules a colourless imperfect ring, with unequally swollen ends, fixed against the circumference of the disk, of which it occupies three- fourths, the remaining space being occupied by a mucilaginous mass. Soon the terminal cells of the antheridia separate at the top, spread out so as to form a crown, and leave a passage for the globules ; these are no sooner set at liberty than they are seen to quiver, and oscillate like a pendulum. These oscillations continue for a few seconds only, after which the antherozoids are found to have replaced the globules, not the smallest trace of the latter remaining. M. Duval-Jouve, who has published a very beautiful and complete monograph of this family, thinks that the globule is absorbed simultaneously with the formation of the antherozoid. The antherozoids of Equisetacece are formed like those of Ferns, and have the same faculty of translation. The archegonia are found near the lobed branches of the prothallus ; these branches are nearly always deprived of antheridia at their extremity ; their lower part is thicker, and composed of cells smaller than those of the antheridiferous branches. This fleshy regiou bears several small bright red cellular cushion-like organs, with a globose base ( ventricle ), and a long neck terminated by a 4-lobed bell- mouth ; the ventricle is immersed in the small-celled tissue, and is nearly filled by a more or less spherical cell, from which, after fertilization, the new plant will start. It is into the cavity of these little cushions that the antherozoids are said to pene- trate to effect fertilization. IV.. MARSILEACEiE. 907 Numerous observations have shown that, in most cases, Equisetums are dioecious ; the protliallus furnished with numerous and well-developed arcliego nia rarely bears autheridia ; and if a few archegonia occur at the base of the antheridiferous pro- thallus, they are nearly always sterile. This tendency to become dioecious is not an obstacle to reproduction ; for the proximity or overlapping of the prothalli of different sexes, resulting from the entanglement of the spores by their elaters, favours fertilization. Owing to this proximity, a drop of rain or dew enables the antherozoids by a swimming movement to reach the orifice of the archegonium which they are to fertilize. ONLY GENUS. Equisetum. Eijnisetaceee approach Ferns in the structure of their antheridia and archegonia, as well as in their mode of germination ; but as regards habit, they have no affinity with any family, unless it may be with Casuarineee, with which we have compared them, or Catamites, which resemble gigantic Horsetails. The Equisctacece now living are in general of small stature and not numerous; the largest have been met with near Caraccas by M. Ernst ; these attain about 30 feet in height. Horsetails principally inhabit temperate regions ; they decrease towards the pole, and are rare in the tropics, and are absent throughout nearly the whole of the southern hemisphere. A remarkable species (E. ramosissimum ) is found in Algeria, of which the branches spread for considerable distances over hedges or bushes. The stems of several species, being encrusted with silica, are used in the arts to polisli wood and even metals [and called Dutch reeds]. The rhizomes of some are starchy. E. arvense, Jt a via tile, limosum, and lujemale were formerly used in medicine as astringents and diuretics. IV. MARSILEACEA V, Br., Brongn. Acotyledonous marsh herbs, with a creeping rhizome. Fronds rolled into a crozier in vernation. Fructification rliizocarpian, enclosed in 2-several- celled 2-4 -valved sporocarps. Antheridia and sporangia enclosed in the same sporocarp, but occupying separate cells , sessile or sub-sessile on a sub-gelatinous placenta. Sporangia emitting a single spore, from which springs a protliallus bearing a single archegonium. Perennial plants, inhabiting swamps or inundated places. Rhizome filiform, creeping and rooting ; axis composed of rayed and annular vessels, and elongated cells. Fronds radical, epidermis furnished with stomata, the extremity rolled into a crozier before expansion; rachis naked (Pillularia), or terminated by 2 pairs of leaflets placed crosswise. Leaflets cuneate, entire or lobed, traversed by fan- shaped dichotomous nerves, and presenting, as in Oxalis, the phenomenon of sleep ( Marsilea ). Fructification of two sorts, enclosed in capsular receptacles [sporocarps) , solitary, axillary, situated near the rhizome, or geminate, or inserted near the base or along the fronds, globose or reniform, glabrous or velvety. Sporocarps 2-4-valved, emitting either a mucilaginous mass which contains micro- and macro-spores mixed (Filularia), or a mucous cylinder bearing at intervals oblong sporangia which each 908 IV. MARSILEACEiE. Pilularia. Sporocarp emitting the mucilaginous mass laden with macro- and micro- spores. Pilularia. Vertical section of sporocarp (mag.). Pilularia. Transverse section of sporocarp (mag.). Marsilea sxlvatrix. IY. MARSILEACEiE. 909 M. salvatrix. Prothallus developed, bearing the arehegonium in the centre (mag.). (Hanstein.) Marsilea salvatrix. Sporangium, showing the antheridia. M. salvatrix. Prothallus leaving the spore, about to enlarge. (Hanstein.) Marsilea. Antheridium (mag.). Marsilea salvatrix. Sporangium, showing the antheridia and macrospores. M. salvatrix. Gelatinous cylinder escaped from the sporocarp, laden with sporangia. contain, but on opposite sides, micro- and macro-spores {Marsilea). Macro-sporangia ( oophoridia ) and micro-sporangia ( antheridia ) formed originally of cells, containing a cellular mass, which afterwards divides into granules agglomerated in fours. The antheridia give birth to fragile vermiform many-haired antherozoids, similar to those of Ferns. In the macro-sporangia all the cells are absorbed with their 4 contained granules, except one, in which one of the 4 granules is further developed into a spore ; this spore, enveloped in a mucous layer, rapidly emits a prothallus, which bears at its centre a large cell surmounted by a hollow papilla, formed of 4 rows of superimposed cells ; this is the arehegonium, on which the antherozoids act to pro duce fertilization. GENERA. Marsilea. Pilularia. Marsileacece resemble Ferns in tlieir coiled fronds, but the structure of their spores or reproductive organs brings them nearer to Lycopodiacece. This family inhabits the temperate and hot regions of both worlds and of New Holland. It contains hut few species, of which however one (M. salvatrix ) has of late acquired celebrity from having been the means of saving the lives of a party of intrepid exploring naturalists, who, lost in the immense deserts of Australia, had no other food but its sporangia. [These after the drying up of the pools in which the Marsilea grows, are found in vast abundance on the surface of the soil, and contain a certain proportion of starch and probably other nutritious matters.] 910 Y. SALVINIEiE. V. SAL VINIEsE, Bartling. Acotyledonous aquatic plants. Fronds with edges reflexed in vernation. Fruc- tification rhizocarpian, enclosed in distinct 1 -celled sporocarps. Antheridia and sporangia springing from, a branched placenta, situated at the bottom of the sporocarp. Spore solitary. Prothallus with several arcliegonia. Salvinia. Group of sporangia (mag.). Salvinia. Prothallus coming out of the spore (mag.). (Pringsheim.) Salvinia. Prothallus beginning to develop into a frond. (Pringsheim.) Salvinia. Prothallus in an advanced stage of germination. (Pringsheim.) Annual floating herbs, not attached to the soil, resembling large Lemnce {Salvinia), or a Jungermannia (. Azolla ), with no true stem. Fronds with margins reflexed before expansion, usually claret-coloured on the under surface, sometimes composed of cellular tissue, without nerves and stomata [Salvinia)-, sometimes with a stomatiferous epidermis [Azolla), rounded or lobed, sessile or sub-sessile, alternate VI. LYCOPODIACEiE. 911 or distichous, imbricate. Reproductive organs of two inds, similar to those of Marsileacece, inserted at the base of the fronds. Antheridia and sporangia enclosed in distinct sporocarps (conceptacles) , globose, 1-celled, composed of 2 laminae with intervening empty laminae. Antheridia spherical, springing from a much-branched basilar column. Sporangia ovoid, pedicelled, at the top of a central clavate column. The only spore developed in the sporangium emits a prothallus, on which several archegonia are usually developed. genera. Azolla. Salvinia. Salviniece, which formerly composed, with Marsileacece, the family of Rliizocarpece, differ from Marsi- leacecc and PUularice in habit, and in reproductive organs, which occupy distinct one-celled sporocarps with central placentation ; also in the sporocarp not producing mucous bodies, and in its decaying when ripe. These plants float on still water like Lemna. Salvinia is met with throughout the northern hemisphere, as well as in tropical and South America. Azolla inhabits Asia, Africa, Australia, and America from Canada to the Straits of Magellan. VI. LYCOPODIACEsE. (Lycopodine.e, Swartz, Br. — Lycopodiacea:, L.-C. Richard, Broncjn., Spring.) Acotyledonous terrestrial moss-like plants. Stem herbaceous, rooting or creeping, simple or branched. Leaves opposite or whorled, persistent, small, \-nerved. Fructi- fication epiphyllous at the base of the leaves, and dispersed over the entire stem, or arranged in catkins at the ends of the branches. Sporangia sessile, or shortly stipi- tate, reniform or cordate, coriaceous, 2-3 -valved, containing either powdery quaternary granules, smooth or papillose, or larger granules, marked on one side with 3 prominent lines. Terrestrial perennials, or very rarely annuals, resembling Mosses or Junger- mannias. Roots filiform, at first simple, then dichotomous, exceptionally fusiform {Phylloglossum) . Stem herbaceous, leafy, rooting, creeping or erect or sometimes sarmentose ( Selaginella scandens, Lycopodium volubile), simple or dichotomously branched. Axis formed of scalariform vessels, arranged in bundles, the number of which is a multiple of 2 (4, 8, 16, 32, 64), and the division of which produces a dichotomous ramification of the stem, as in Ferns. Lycopodiacece are divided by their habit into two natural groups : the one has branches developed in all directions, or at least in undetermined directions (true Lycopodia, Psilotum, Tmesipteris ); in the other the branches spread symmetrically, forming a sort of frond analogous to that of some Ferns ( Selaginella ). Some species have a compressed stem ( Lycopodium complanatum) , or square (L. tetragonum) ; several resemble large Mosses (L. fontinaloides), or long cords (L. f uniforme). L. clavatum has often creeping stems sometimes more than 13 feet long, and 912 VI. LYCOPODIACEiE. Poeppig has observed stems of Selaginella exaltata which measured more than 60 feet. Leaves simple, sessile, more or less decurrent, never jointed, regular or falcate, with a single stomatiferous nerve, sometimes whorled around the axis, and all, at a given height, of the same shape and size ( Lycopodium , &c.); sometimes in 4 regular series, arranged on the plan of the branches, and presenting two different forms; the one largest, occupying the side of the axis, and called lateral ; the others smaller, called intermediate or stipuliform ( Selaginella ) ; sometimes auricled ; glabrous or very rarely sub-pubescent, green or dark or light red ( Lyco- podium rubrum, rubescens, &c.), sometimes shot ( Sela- ginella cwsia, atro-viridis) , Tmesiptet'is. SporaDgium seen in front (mag.). Psilotum. Fructiferous branch (mag.). Psilotum triquetrum. Fructiferous branch. Psilotum triquetrum. Fructiferous pedicel. Tmesipteris. Portion of fructiferous frond VI. L Y COPODIACEiE. 913 SelagitieUa. Lycopodium clavatum. Macro-sporangium Fructiferous branch. (mag.). Lycopodium. Sporangium and bract, inner face (mag.). Lycopodium. Spore, showing the three lines of dehiscence (mag.). Selaginella. Micro-sporangium (mag.). either acute or terminating in a scarious white tongue (L. vestitum) ; axillary buds never present. Reproductive organs springing either near the base of the leaves, over all the branches, or only at their upper part, sometimes towards the base of bracteal leaves, and forming spikes, catkins, or terminal cones ; rarely borne at the end of a sort of naked scape, which rises from the middle of a rosette of small subulate leaves (Phylloglossum) . Sporangia sometimes all alike, and then 1-celled ( Lycopodium , Phylloglossum), or 2-celled (Tmesipteris) , or 3-celled (P silo turn), containing only very small homogeneous granules, sometimes dimorphous ( Selaginella ). The dimorphous sporangia consist of: — 1st, micro-sporangia ( goniotheca ), which are 2-3-valved, and contain numerous smooth or papillose granules ( microspores , antheridia), which are developed in groups of 4 in cells that are soon re-absorbed ; these antheridia, when placed in suitable conditions of moisture, break, and project beyond the cells, whence antherozoids emerge, similar to those of Ferns and Equisetums : — 2nd, the macro- 3 N 914 VI. LYCOPODIACEiE. sporangia ( oophoridia , spherotheca) , less numerous, solitary and very large, or 4-5-6 at the base of the spike, or indeterminate in number, and mixed with the micro- sporangia, sometimes placed on distinct spikes, and as it were monoecious, 2-3-lobed and valved, and containing 3-4-8 sub-globose bodies {macrospores). The macro- spores are the true spores, which are much larger than the microspores, and alone bave the power of germinating; they are rounded on the outer side, and present where they are in contact within the sporaugium 3-4 triangular faces, somewhat flattened, and separated by more or less projecting lines; the prothallus springs from the point where these lines meet. Prothallus orbicular, composed of 3-4 layers of cells ; the arcliegonia are developed on its surface, and are somewhat similar to those of Perns. No one has yet seen the germination of the microspores, which are only sexual organs of all Lycopods but Selaginella. GENERA. Psilatum. Tmesipteris. Lycopodium. Selaginella. Bhylloglossunp The fertilization of Lycopods is still very obscure. In true Lycopods, in which the sporocgrps are all alike ( Lycopodium , Psilotum, &c.), we only find microspores, apparently homogeneous, but perhaps of two different natures, mixed in the same sporangium. It is different in Selaginella, where we can trace the development of the embryonic vesicle and of the embryo, precisely as in Ferns. One arche- gonium alone is fertile, and it is not rare to find at the base of the young plant the remains of the pro- thallus laden with sterile archegonia. One peculiarity of the formation of the embryo in Selaginella is, that at the moment when fertilization takes place, the cavity of the spore partially fills with a very delicate cellular tissue. The embryonic vesicle grows, becomes divided, and lengthens into a filament which buries itself in the middle of this fresh tissue. Then the lower cells of the filament multiply and form a small cellular mass, from which spring the first bud and the radicle. Thus formed, the embryo quickly rends the prothallus, and gives birth to a young plant. Lycopodiacet 8, as at present defined, are closely allied to Isoctece only; they differ in the regular and valvate dehiscence of the sporangia and the number of the macrospores, which are four and rarely eight, while they are numerous in Isoetccc. The creeping species grow at one end, while the other end decays, so that they travel, like the rhi- zomes of many Phsenogams (Carex, Iris, Polygonatum, &c.). Some Lycopods (Z. venustulum, curvatum, &c.) recall by their dichotomous and leafy stems certain fossils of the coal formation ( Catamites ) ; their cone-shaped fructification resembles the structure of another fosdl, the Triplosporites, described by It. Brown, and placed by him between Lycopodiacecc and Ophioglosseco. There is also a resem- blance between Lycopodiacecc and Gymnosperms. About 350 Lycopodiacecc are now known, of which 100 are Lycopods and 200 Selaginella^. This group is represented up to the polar regions by Lycopodium Selayo , olpinum, complanatum, mrtpellaniciim , as well as by Selaginella spimdosa, helvetica and denficulata, which advance to the snow limit, where S. snnguinolenta is met with on the Altai and towards the mouth of the Amoor. Phyl/oglossuin, ( P . Sanr/uisorba, Spg.), the smallest known species, resembling in habit a very small Plantayo pusilla (an inch or two in height), is found on the west coast of Australia, and in New Zealand. Tmesipteris belongs to Australia, Pdlolum to Madagascar, the Mascarene, the Moluccas and the Sandwich Islands. We have no very precise knowledge of the properties of Lycopodictccce. The Club Moss (Z. cluvatum), which grows in the mountainous woods of Europe, is an insipid herb, still administered in Russiq for hydrophobia. The granules which fill the sporangia are extremely inflammable, and form ‘ vegetable sulphur,’ which is valuable for theatrical purposes [to produce lightning]. This dust is also used for rolling pills in, and medicinally as a desiccator, to cure excoriations in the skin of young infants. A decoction of Z. Selayo is emetic, drastic, vermifuge and emmenagogue ; Z. myrsinitJs and eathartieum are also considered purgative. The root of Z. Phleymaria is slightly salt; the Indians attribute to. it mar- VII. ISOETEiE. 915 vellous virtues in checking vomiting, curing pulmonary affections, dropsy, &c. ; they also use it in the composition of philters. Some species of Lycopodiacea are cultivated ; the true Lycopods are very difficult to rear, but this is not the case with Selayinclla, several of which play a considerable part in the ornamentation of our hot-liouses, as a covering for damp walls or borders : such are S. apocla, denticulate t, Hugelii, cccsia, and cuspidata as a sarmentose plant. Two or three species possess the property of drying up and reviving when moistened (S. convoluta , invylvens, &c.) ; thus recalling the Rose of Jericho (see p. 232). VII. ISQETEsE, Bartling. Aquatic and submerged Acotyledons, ar terrestrial. Rhizome very short, furrowed, emitting dichotomous roots, and subulate ccespitose fronds, erect in evolution, enlarged and membranous at the base. Sporangia situated at the lower part of the fronds, those containing macrospores attached to the outer fronds ; those containing microspores attached to the central fronds of the rosette ; the macrospores are marked on one hemi- sphere with a tricrural line, the microspores are marked with a furrow. Perennial grass-like plants, aquatic or amphibious or terrestrial, stemless. Rhizome sub-globose or depressed, formed of a fleshy utricular tissue, often oily, bearing below 2-3-4 furrows or fissures, along which it divides, by a sort of budding process, into distinct individuals ( Isoetes setacea, &c.). Roots often springing in longitudinal series in each of the furrows of the stock, dichotomous, brown, almost glabrous in the lacustrine species, velvety in the terrestrial. Fronds fascicled, straight in vernation, their base more or less amplexicaul, and pressed together like a bulb, terminated by a foliar linear-filiform or subulate blade, resembling the leaves of some Phaenogams ( Littorella , Lobelia Dortmanna, &c.), along with which Isoetes Is often found. Following J. Gay, A. Braun distinguishes in the frond the phyllopode, the pouch ( le voile), the border (l’ area ), the sporangium, the ligule, and the blade. The phyllopode is the dilated or sheathing base of the frond, an organ analogous to the petiole of a leaf. In the terrestrial species the pliyllopodes persist for several years, on the outside of the rhizome, as brown, hard, 2-3-tootlied scales. The phyllopode is hollowed into a pouch ( le voile), which occupies almost its whole surface; this pouch either opens towards the axis, or is perforated at the base. A narrow border of a peculiar tissue if area) circumscribes it. The pouch encloses a membranous sac (sqyorangium), closed on all sides, which is divided transversely into several compart- ments by membranous septa. Above the sporangium is a small smooth scale, formed of a delicate tissue [ligule). The rest of the frond, of a more or less deep green, forms the blade ; it is usually subulate, flat on the inner surface, convex on the outer ; it is traversed longitudinally by transversely septate tubes, which surround a central bundle of annular and spiral vessels. The epidermis of the terrestrial species bears stomata, which are absent in the lacustrine. The sporangia, although alike in form, structure, and insertion, contain 2 916 VII. ISOETEZE. Jsoetes. Transverse section of rhizome. Jsoetes. Transverse section of the bases of fronds, showing the arrangement of the £ and 9 sporangia (mag.). 7. setacea. Transverse section of a sporangium, enclosing antheridia (mag.). 7. laevstris. Ligule (mag.). Isoetcs setacea . 7. setacea . Vertical section of a sporangium, enclosing antheridia (mag.). 7. setacea. Phyllopode with double ligule, sporangium con- taining antheridia. 7. lacusiris. 9 phyllopode, showing the young sporangium and the ligule. 7. lacusiris. 9 phyllopode, showing the sporangium open and deprived of spores. VIII. CHARACEiE. 917 kinds of reproductive organs, namely, macrospores in the outer fronds, and micro- spores in the central fronds. Ihe macrospobes, to the number of 40 to 200 in each sporangium, are at first united in fours, and later separate ; they are divided by a circular ridge into 2 hemi- spheres, one of which is smooth, and the other, which is a little produced, is marked by 3 ridges, dividing its surface into 3 triangular spaces. The membrane of the macro- spores is double ; the inner very thin and very smooth ; the outer thicker, crustaceous, granulated, foveolate, or muricate, white or opaline. The macrospores open at germination into 3 valves along the connivent ridges. The microspob.es, which resemble fine flour, are whitish when fresh, brownish later ; there are above a million in each sporangium. They are at first united in fours, then free, oblong, convex on the back, furrowed, furnished with a double mem- brane like the macrospores, often granulated or papillose on the surface, and contain a minute drop of oil. The development of the prothallus in Isoetes is absolutely the same as in Selaginella, only the macrospores are developed in greater numbers in the sporangia, and the archegonia are less abundant on the prothallus. The antherozoids are somewhat similar to those of Ferns. ONLY GENUS. Isoetes. Isoetece, regarded as a section of Lijcopocliacece by most botanists, and having decided affinities with them, seem to us nevertheless to form either a small family or a distinct tribe, whether we consider the nature of their vegetative organs, or the structure of their sporangia and macrospores. The species of Isoetes are spread over the whole world. Some form a sort of close lawn, scarcely more than an inch in height ; while others, which live in deep water, often attain two feet in length (J. M alin vern tana). VIII. CHARACEJE, L.-C. Richard . (Chares, Eiitz.) Acotyledonous plants, cellular, aquatic. Stems tubular, jointed, naked or sur- rounded by several parallel elongated cells. Branches whorled on a level with the joints. Reproductive organs formed of antheridia and sporangia, borne on the branches, and often accompanied by branchlets or bracteoles. Antheridia composed of a spherical sac, containing oblong vesicles, whence spring numerous chambered tubes, containing antherozoids. Sporangia oblong or ovoid, formed of spiral tubes, and crowned by five protuberances (corona), and containing a single starchy uni-embryonic spore. Characew are aquatic submerged vegetables, often exhaling a foetid alliaceous odour, with transparent rhizome, composed of joints always formed of a single tube, and fixed in the mud of stagnant and running water by tubular filiform very fine colourless rootlets. The plant is sometimes reproduced by the lower nodes of the 918 Till. CHARACEiE. Chara frayitfsr* Chara. End of a chambered filament, of which each cell contains an antherozoid (mag.). Chara vtt7ga?is. Fructiferous branch (mag.). Chara fray i l is. Portion of fructiferous branch, showing the closed antheridia (ma?.). Nil ell a flex ills. Chara fragilis. dric inner cell, Valve of antheridium, showing the and its sheath central antheridiferous cell (mag.). formed of tubes. Chara fragilis. Portion of fructi- ferous branch, showing the dehiscent antheridium (mag.). C. fragilis. Top of sporangium, to show the corona formed of four non- cham bored protuberances (inag.). VIIL CHARACEiF. 919 Char a. Portion of stem cut vertically (mag.)- (Bischoff.) C. fragilis. Sporangium cut vertically (mag.). Chara hispida . Fructiferous branch (mag.). Chara hispida. Central cell bearing the chambered filaments, of which each cell contains an antherozoid. C. hispida. Sporangium covered with lime (mag.). C. hispida. Sporangium (mag.). C. hispida . Antherozoids (mag.). (Thuret.) stem being converted into starcliy tubers of various shapes, or by whitish crustaceous bulbils, developed at the joints of the stems. Stems tubular, cylindric, leafless, jointed, sometimes transparent and flexible, even after being dried (Nitella) ; sometimes opaque and fragile, even before being dried {Gliara)-, often covered with calcareous salts, usually branched ; joints composed of a cylindric tubular cell, naked [Nitella), or clothed with a sort of sheath formed of smaller tubes united together, and giving rise on the outer surface to longitudinal and oblique striae [Chara)-, the joints or tubes are filled with a colourless liquid, in which pale green granules float ; their inner wall is covered with green uniform granules, arranged in a chaplet or longitudinal parallel very regular series, and more or less pressed together ; these series are oblique with relation to the axis of the tube, an obliquity which is the result of the greater or less twisting of the tube. The series of green granules covers the whole inner surface of the tube, with the excep- tion of 2 parallel opposite bands, which are quite free from them. This arrange- ment of the granules Obtains both in the simple tube of Nitella, and in the central and peripheric tubes of Chara ; but the intracellular circulation which is described at p. 147, and which has exercised the sagacity of many physiologists (Corti, Slack, Sachs, Schumacher, &e.), is best observed in the central tube of Chara when deprived of its envelope of cortical tubes. This circulation does not extend along the 2 bands without granules, which proves, as supposed by Amici, and confirmed by Dutrochet, that the intracellular currents take place under the influence of these series of globules fixed to the walls of the tube, and are determined by an action of these 920 VIII. CHARACEiE. granules on this fluid. Amici attributed them to electric action. Becquerel and Dutrochet opposed this view. Donne, having observed that the green granules, if detached from the tube which they line, and removed to one of the bands where the current is not felt, execute a rapid rotatory motion, attributes the movement im- parted to the liquid to the rotation of the granules ; and as no trace of vibrating hairs has been discovered in these granules, Brongniart was led to suppose that the ambient fluid is set in motion by successive contractions of the various parts of each granule, that is to say, by a change of form analogous to a sort of peristaltic motion. The branches are whorled on a level with the joints ; they may be simple and bear along their inner surface the reproductive organs, furnished with an involucre of branchlets or bracts ; or may be more or less branched, often dichotomously, and bear the reproductive organs at the top or on a level with the forks of the branches. The reproductive organs ( antlieridia and sporangia ) are borne on the same individual, and then usually close together ( monoecious ) ; or on different individuals (i dioecious ) . The antheridia appear before the sporangia, and are situated immediately below them ( Ghara ), or above them ( Nitella ) ; their -wall is composed of 8 flattened triangular crenulate convex valves, the crenatures of which so interlock, that they together form a sphere [globule). Each valve consists of 12-20 cells radiating from a common centre, and each crenulation answers to an imperfect septum radiating from the centre of the valve. The inner surface of the valve is lined with a layer of red granules ; the cavity of the globule is occupied by a colourless liquid, the thick- ness of which gives the appearance of a whitish ring surrounding the antheridium. At the centre of [the inner surface of] each valve is fixed perpendicularly an oblong vesicle, which contains orange-coloured granules placed in a line, and presenting a circulation observed by Thuret, and analogous to what occurs in the stems. The 8 vesicles emanating from the 8 valves converge towards the centre of the antheridium, where their ends unite in a small cellular mass. A larger and flask-shaped ninth vesicle attaches the antheridium to the plant, its enlarged base rising from a branch of the Ghara, while its opposite end penetrates the globule through a space between the 4 lower valves, and reaches the central cellular mass. Erom this point emanate a large number of flexuous hyaline chambered tubes, each joint of which contains a filiform spirally- coiled antherozoid, furnished with 2 very long and fine setae, which finally escapes from the joint in which it was imprisoned. The sporangia are terminated by a corona, composed of 5 simple cells, whorled and more or less persistent [Ghara), or of 5 chambered cells simulating a corona, of 2 whorls, and very caducous [Nitella). The corona surrounds an orifice, which may be regarded as a sort of micropyle. The walls of the sporangium are composed of 2 coats ; the outer membranous, colourless, transparent ; the inner formed of compressed thick spiral tubes, containing colouring matters. The solitary spore is amylaceous, and fills the sporangium ; it is clothed with a membranous fawn-coloured coat, marked, as well as the outer membrane, with spiral striae due to the impression of the tubes of the sporangium ; it germinates without developing a protliallus. GENERA. Chara. Nitella. IX. MUSCI. 921 The affinities of Characece are very obscure. A. L. de Jussieu placed them among1 Monocotyledonous Phoenogams, near Naiadece ; R. Brown near Hydrocharidece ; some botanists have placed them near Mynophyllum and Ceratophyllum, from having the same habitat, and resembling them in habit. Several modern authors — Wallroth, Von Martius, Agardh, Endlicher — have classed them after Alya, where Adr. de Jussieu retained them, whilst observing that, in spite of their purely cellular structure, they recall axiferous plants. Brongniart having regard to the fact that the stems and leaves of submerged Phtenogams often are simple in structure as compared with terrestrial plants of the same families, thinks that the structure of the stem of Characece ought not to determine their affinity, and that it is rather the nature of their reproductive organs which should be considered ; whence he places these plants amongst the highest Cryptogams, near Ferns and Marsileacece, or between these and Mosses and Hepatic# . Characece all grow in fresh water, or sometimes in the brackish waters of sea-coasts, and appear to extend nearly over the globe. This family is nearly useless to man ; some species of Cliara are covered with calcareous salts, and are used for polishing plate, whence their common name of Hcrhe a ecurer and Lustre d'eau. IX. MUSCI. DilUnius , Hedwig. Cellular terrestrial or aquatic annual or perennial Acotyledons. Stems erect or prostrate, leafy . Leaves alternate , or rarely distichous, sessile, simple. Repro- ductive organs formed of antheridia and archegonia, in the axils of bracteoles, or from the centre of a common involucre (perigonium, perigynium). Inflorescence polygamous, monoecious, or dioecious. Antheridia formed of shortly pedicelled cellular sacs, opening at the top , and emitting a semi-fluid parenchyma, composed of cells each containing an antherozoid. Archegonia flask-shaped, containing an embryonic nucleus suspended in mucus. Nucleus formed of a cellular sac, which is transversely ruptured ; the upper part is then raised by the rapid elongation of the embryo, whilst the lower part forms at the base of the embryo a membranous sheath (vaginula), and sur- mounts the fruit with a sort of cap (calyptra) . Fruit capsular (urn or theca) borne on a pedicel (seta) ; seta sheathed at the base by the vaginula, and sometimes terminated [ below the urn ] by a swelling (apophysis). Urn spherical, ovoid, cylindric or pris- matic, sometimes indehiscent, mostly furnished with a cover (operculum), which detaches circularly when ripe, and leaves an orifice (peristome) ; axis of the urn occupied by a cellular column (columella) rising into the operculum. Peristome naked, or furnished with a separable border (annulus), and usually crowned with 4, or a multiple of 4 teeth or hairs. Sporangium enclosed in the urn, and formed of a double sac lining the walls of the urn and columella. Spores in fours in the mother-cells, contained bettveen the 2 sacs of the sporangium. Stem elongating in one direction, i.e. from below upwards, sometimes scarcely perceptible ( Buxbaumia , Phascum, Discelium, &c.), sometimes several feet long (Neckera, &c.), simple or branched, of equal diameter throughout, cylindric or tri- gonous, variable in consistency and colour ; sometimes soft, watery and nearly transparent ( Schistostega , &c.), or green or reddish ( Bryum , Splachnum, Mnium, &c.) ; sometimes nearly woody and black {Poly trichum , Hypnum, Neckera, &c.). Axis of the stem solely composed of more or less elongated and narrow fibrous cells ; the outer superficial cells, which take the place of the epidermis, are thicker and of a more or less intense r^d ; they are often prolonged into aerial rootlets or appendages 922 IX. Muscr. Poly trichum commune 9* PolyfrichuTfi commune . 9 Polytrichum. Capstile deprived of its operculum, showing the peri- stomium and the epiphragm (mag.). 9 Poly trichum. Capsule capped by a calyptra clothed externally with silky hairs (mag.). 9 PolytrichuVn . Capsule stripped of the outer calyptra (mag.). 9 Polylrichum. Capsule cut trans- versely, showing the 4 -branched columella, and the sporiferous sac (mag.). Polyfrichum commune. Top of £ stein (mag:). 9 Polytrichum. Capsule stripped of its calyptra (mag.J. Polytrichum commune . Paraphyses and antheridia, one of which emits antherozoids (mag.). (Thuret.) P IP Polytrich urn commune. Antherozoids (mag.). (Thuret.) Hypnuni populeum. Capsule and calyptra. Ilypnum populeum (mag.). Ilypnum populeum Dehiscent capsule. IX. MUSCI 923 Bryum argenleum (mag.). Phascum serratum. Capsule and ealyptra (mag.); Andnta alpeslris. Fructiferous branch (mag.). Bryum argenteum (natural site). Bryum argenteum. Capsule with operculum (mag.). Phascum muticum. Capsule opened, showing the columella. Andtcea alpeslris. Branch bearing capsule and $ flowers (mag.). Splachnum ampullaceum (natural size). Spldchnum ampullaceum (mag.). Phascum serratum. (a, natural size ; b, mag.). Andrdea alpeslris. Dehiscent capsule with its apophysis (mag.). Andrcea nivalis. Dehiscent capsule (mag.). Splachnum ampullaceum. Capsule and swollen pedicel (mag.). Splachnum ampullaceum. Dehiscent capsule and withered pedicel (mag.). Tetraphis pellucida . Peristomium (mag.). Barbula ruralis . Peristomium (mag.). 924 IX. MUSCI. Cinclidotus riparius. Portion of peristomium (mag.). Buxbaumia aphylla. Peristomium (mag.). Fonlinalis antipyretica. Peristomium (mag.). SoooRoSSo Orthotrichum stramineum. Portion of peristomium (mag.). Dawson ia potytrichoides. Filiform peristomium (mag.). Entosthodon fascicularis. Vertical section of capsule (mag.). Atrichum undulatum. Peristomium (mag.). Cinclidium stygium. Peristomium (n ag.). Funaria hygrometrica. Germinating spores (mag.). of very various form ; the fibrous cells are larger, very thin, hyaline, filled with a watery liquid and amylaceous granules ; the medullary cells are narrower and thicker, but soft and brownish ; they contain no granules, but colour by iodine. Roots. — The roots spring either from basilar cells or from peripheric cells of the stem ; they are always composed of a single series of cells united by oblique walls ; they are more or less branched, the principal branches of a reddish brown, the branchlets white or hyaline. In many species a resinous exudation forms a granular deposit on their surface, which is of great importance in attaching certain species to hard bodies ; in other cases contributing to the agglutination of sands and the binding of the dunes on sea-coasts by tufted species ( Polytriclmm piliferum, nanum, Barbula rurcdis, Rha- comitrium canescens, &c.). Besides their subterranean roots, most Mosses possess aerial or adventitious roots, which are developed over the whole surface of the stem, but more especially in the axils of the leaves of the branches. Leaves. — Blade usually simple, nerveless, or traversed longitudinally by one, rarely by two, cellular bundles ( Hylocomium ), commonly termed nerves) which may be shorter than the blade, or may reach its apex, or extend beyond it as an awn, bristle or hair-point. In some species the nerves present on the upper or lower surface more or less regular excrescences ( Fissidens , Pottia), or plates with thickened margins ( Barbula , Poly trichum). The leaves are always sessile, and inserted moi'e or less horizontally [or obliquely or longitudinally], often decurrent, with usually symmetrical wings ; and are distichous or alternate, and arranged in regular spirals. IX. MUSCI. 925 The cells of the tissue of the leaves form regular dodecahedrons, or a dense parenchyma ( Mnium , Orthotrichum, &c.), or elongated dodecahedrons, or rhomboids (. Bryum ), or approach vermicular fibrous cells ( Hypnum , &c.); in Dichelyma, and in the midrib and marginal edge of many other species, the cells lengthen so much as to resemble vessels. The cells often vary in form and size in the same leaf, being usually larger and more elongated towards the base of the blade than towards the lop, and formed of a thinner membrane, and deprived of chlorophyll ; the marginal series is always composed of narrow cells which often project under the form of tubercles or teeth ( Poly trichum , &c.), or branched hairs ( Buxbaumia , &c.). The cell- membrane itself is smooth or covered with papillse, whence the name of papillose cells ( Barbula ). In certain Mosses the foliar parenchyma is composed of several similar or dissimilar cellular layers ( Leucobryum ); in the latter, each layer is homo- geneous ; in some the cells are small, elongated, nearly cylindric, full of chlorophyll ; in others they are large, nearly octahedrons and tubular, with hyaline walls pierced with holes, and deprived of green granules. These layers are alternate, and the tabular cells always cover both surfaces of the leaves. Reproductive organs. — Mosses are 2-sexual ; both sexes may occur in the same involucre, or in separate ones, and the plant is accordingly monoecious or dioecious. In the 2-sexual Mosses the two reproductive organs are intermixed in the centre of the involucre, or arranged in two groups, or contained in separate special involucral leaves. The inflorescence differs in external appearance in the two sexes ; the involucre of the male flowers is termed a perigonium, that of the female a perigynium, and that of the 2-sexual perigamium. The two latter form an elongated, nearly closed bud, composed of leaves resembling the cauline leaves, of which, in fact, they are a modification ; the perigonium is stouter, and its leaves are larger and more concave. At the time of the development of the fruit, a new cycle of leaves, which are in a rudimentary state before fertilization, is simultaneously evolved ; it bears the name of perichcetium, and vai'ies in form in different species. The paraphyses are jointed filaments found in the inflorescence of most Mosses : in the $ they are simple filiform bodies, composed of a single series of cells ; in the $ filiform, clavate or spathulate, and terminated by several series of cells. The perigonium is often traversed by the stem, which is sometimes continuous (Polytrichum) through several superimposed series of perigonia, a character peculiar to Polytrichum, as is also the presence of an epiphragm, closing the urn. The antheridia, or male organs, are little elongated cylindric or sub-spherical (Buxbaumia) usually very shortly pedicelled sacs formed of tabular cellular tissue filled with green granules, enveloped in an extra-cellular thick and hyaline sub- stance, and filled with a granular mucilage, destined to he expelled by jets through an apical opening in the antheridium when the latter is mature. The mucilaginous mass filling the antheridium is composed of spherical hyaline cells *00026 to "00039 in. in diameter, each containing a filiform antherozoid, and furnished anteriorly with two extremely slender vibrating hairs, which equal it in length. The antherozoid describes a spiral of two turns within the mother-cell, and presents, either in the middle, or at the posterior part, a heap of 1 2-20 amylaceous 926 IX. MUSCL granules; water dissolves tlie mother-cell, and frees the antherozoid, which by means of its vibrating hairs reaches the gaping mouth of the archegonium.1 The archegonium or female organ originates, like the antheridium, as a cell, which bjT subdivision develops a cylindrical cellular body with a rounded top, tra- versed by a canal. As its walls elongate, the lower part of the archegonium dilates, till, when mature, it becomes flagon-sliaped, and at the same time its tubular apex has expanded into a funnel-shaped terminal orifice. The cavity of the archegonium contains a nucleus (a free cell) immersed in mucilage. The nucleus, after fertiliza- tion of the archegonium by an antherozoid, elongates and becomes cylindric, the archegonium itself at the same time increasing both in length and breadth ; but the nucleus being developed far more rapidly than the archegonium, finally ruptures this transversely, carrying up its upper part as a conical cap ( calyptra ), and leaving its lower part as a sheath (vaginule) surrounding the base of the nucleus, which now forms a slender bristle. This bristle goes on elongating, still capped by the calyptra, till it has attained its full height, when the upper part within the calyptra swells and forms the capsule ( theca or urn), commonly called the fruit of the Moss. The rest of the bristle is the pedicel or seta of the capsule. The capsule is usually ovoid or cylindric, sometimes spherical ( Phascum ), or angular (Poly trichum) , rarely compressed on one side and unequal. It may remain entire (Phascum), or split into four segments united at the top ( Andrcea ) ; but in most other Mosses it dehisces transversely above the middle. This detached portion is named the operculum of the capsule. The base of the capsule is usually narrowed equally into the seta; but sometimes there is a symmetrical oblique or gibbous swelling at the junction, called apophysis. In Andrcea and Archidium the apex of the branch at the base of the seta is swollen and fleshy, forming a pseudopodium, as in Sphagnece. Between the margins of the operculum and of the capsule there often exists an intermediate organ, called the annulus, composed of one or several rows of very hygrometrical cells, the rapid growth of which facilitates the detach- ment of the operculum. The mouth of the capsule is naked, or furnished with a peristome consisting of 1-2 rows of lanceolate or filiform (Daivsonia) appendages or teeth, which are definite in number (4, 8, 16, 32, 64). When the peristome is simple, it usually originates in the loose tissue which lines the inner surface of the urn ; when it is double, the inner is a prolongation of the sac (sporangium) contain- ing the spores. Sometimes (Polytrichum) the inner peristomium extends horizon- tally from the circumference towards the centre, to form a membrane called the epiphragm. The walls of the capsule are composed of an epidermal layer formed of tabular small and thick cells, and of 2-3 layers of large thin and hyaline paren- chymatous cells. The epidermal layer is often pierced with stomata, especially at its lower part, as well as at the neck and apophysis. The sporangium is enclosed in the capsule; it is composed of a membranous sac which lines the cavity of the capsule, and whose base is drawn up like the finger of a glove over a central axis (columella) . A loose tissue, or of jointed and sometimes 1 I am unable to make the structure of the organs of from which I have widely departed in the description M< ■S'cs clear by a literal translation of the original, of the development of the archegonium. — Ed. IX. MUSCI. 927 anastomosing filaments, unites the outer wall of the sac to the inner wall of the capsule ; the columella is fitted with lax cellular tissue, which rises into the oper- culum, and is continuous below with the tissue of the seta. The columella is wanting in some Phascvims. The spores are developed in fours in mother-cells', which constitute a very soft tissue between the columella and inner walls of the sporangium, and which tissue is rapidly absorbed. Archiclium alone presents an exception to this rule, each mother- cell containing only a single spore. The protliallus resulting from the germination of the spores is a cellular confervoid filament, which branches dichotomously. or in tufts, on several points of which buds appear; these buds become leafy stems, of which some bear archegonia or antheridia, or both. The prothallus is persistent in some minute Mosses with very slender stems ( Schistostega , Ephemerum , &c.). Tribe I. BRYAGEM. Mosses properly so called, stegocarpous or cleistocarpous [capsule dehiscing or not]. Capsule sessile or pedicelled, indehiscent or with a separable operculum ; mouth with or without an annulus, naked, or with a simple or double peristome. PRINCIPAL GENERA. Ephemerum. Bicranodontium. Calyniperes. Biscelium. Leptostojn.il m. Physcomitrella. Campylopus. Fontinalis. Angstrcemia. Zygodon. Funaria. Dichelyma. Phascum. Trematodon. Atnphidium. Entostliodon. Climacium,. Acaulon. Pliyscomitrium. Brucbia. Leucobvyu m. Ortliotriohum. Pyranhdula. Crypliaea. Octoblepharum. Ulota. Leu cod on. Voitia. Ptychoraitriuin. Mee3ia. Leptodon. Fissidens. Glyphomitrium, Amblyodon. Cladoninium. Archidhini. Oonomitrium. Macromitium. Neckera. Coscinodon, Bartramia. Trachyloma. Pletiridium. Seligeria. Sclotbeimia. Oreades. Ilomalia. Sporledpra. Canipylostelium. Glyphocarpus. Blindia. Grimmia. Cryptopodium. Ilookeria. Scliisto3tega. Brachyodus. Scouleria. Conostomum. Cyathophorum. Scbistidium. Pterygophyllum. Astomum. Pottia. Dryptodon. Mielicboferia. Daltonia. Rhabdoweisia. Anacalypta. Rhacomitriuru. Mniadelphus. Ilymenostomum. Trichostomum. Bi'yum. Weisia. Desmatodon. Hedwigia. Orthodontium. Fabronia. Gymnostomum. Barbula. Braunia. Mnium. Aulacopiluni. Leptotrichum. Aulacomnium. Anisodon. Anrectangium. Did}-modon. Cinclidotus. Timmia. Anacauiptodon. Cevatqdon. Pal udella. Thedeuia. Dicranuni. Distichium. Splaclinum. Webera. Bicranella. Tayloria. Ilymenodon. Hypnum. Cynodontiura. Tetrapliis. Dissodon. Cinclidium. Hypopterygium. Stylostegiuni. Tetrodonpum. (Edipodium. Buxbaumia. Rbizogoniuin. Holomitrium. Encalypta. Telraplodon. Diphyscium. Ilymenodou. 928 IX. MU SCI. Plagiothecium. Rhynchostegium. Thamnium. Eurhynchium. Poly trichum. Dawsonia. Lyellia. Orth otheci urn. Pylaissea. Homalothecium. Platygyrium. Cylindrothecium. Pterogonium. Lescurea. Pterigynandrum. Antitrichia. Leskea. Anomodon. Heterocladium. Pseudoleskea. Thuidium. Hylocomium. Tribe II. ANDR.2EACE2E. Scbistocarpous Mosses. Capsule borne on a pseudopodium, not operculate, open- ing by 4 longitudinal, fissures, and forming 4 valves cohering by their tips ( Andrcea ), or free (Acroschisma). This little tribe, which was formerly placed near Jungermcmniece on account of its habit and the valvate capsule, is separated by its columella, the absence of elaters, and the coherence of the valves at the top, or towards the middle of the urn ; but it approaches both these and Spliagnece in the development of the fruit. GENERA. Andrfea. Acroschisma. Mosses, like Phaenogams, possess other modes or reproduction than that by spores. In nearly all tubercles are formed on the subterranean and even aerial roots, which when exposed to the air germinate like the buds formed on the prothallus, some of the peripheric cells elongating to form the roots, others furnishing new cells for the stem and leaves. In some Mosses reproductive tubercles are also developed in the axils of the leaves ( Phascum nitidum, Bryum erytlirocarpum). Sometimes they are developed into buds before detachment, and root in the soil as soon as they reach it ( Bryum annotinum). In still other cases these buds root before separating from the mother-plant ( Conomitrium Julianum, Cinclidotus aquaticus). In some cases even a detached leaf can, according to Schimper, produce a prothallus by cell-multiplication (Fun aria hygrometrica). Finally, excrescences or propagula form at the extremity of the stem and branches of some Mosses (Aidacomnium, Tetraphis, See.), or even on the leaves ( OrthotricJniui ), which when detached form new individuals. Mosses, so distinct from Hepaticce in their organs of vegetation and fructification, evidently approach them in their sexual organs. Sphagnece connect the two families, resembling Mosses in habit, foliage and formation of fruit, and Hepaticce in the evolution of the prothallus, and in the structure of the antheridia and antherozoids, &c. Mosses inhabit all climates and most opposite localities, from the equator to the poles ; they abound in temperate regions, ascending the highest mountains and descending into the deepest valleys. They clothe with perpetual verdure the trunks of trees, rocks, and often old walls .and roofs. Wherever there is moisture they are found; some are submerged in running water (Fontinalis), others in stagnant water (Hypnum). A large number, after being totally dried up during the summer, recover their verdure in the cool and rain of autumn. Their part in the economy of nature as contributing to the formation of soil, is not less important than that of Lichens, whose work they carry on, adding their own detritus to that of these latter, and forming on sandy lands, by their decay aud reproduction, a layer of soil suitable for the agriculturist. Certain species were formerly used in medicine as astringents and diuretics. Leskea sericea is still applied externally in some countries for its haemostatic properties. Several Mosses are used in the arts and domestic economy; in Sweden and Norway the peasants utilize Hypnum parietinum and Fontinalis to fill the crevices in the walls of their huts. The common Polytrichum is made into brushes much used to give a dressing to stuffs. Finally, Hypnum triquetrum is used, on account of its great elasticity, in packing Phaenogamous plants. X. SPHAGNA. 929 X. SPHAGNA, Schimper. Sphagnum acutifolium (var.). Branch bearing young fruits and -ovuled; style terminal. Fruit a berry. Seeds exalbuminous. — Leaves alter- nate, compound, gland-dotted, exstipulate. 315, 318 53. Dtosme-E. Flowers regular or irregu- lar. Petals 4-5, free, imbricate or valvate. Stamens 4-5 or 8-1 0. Disk free or perigy- nous. Ovary apocarpous ; style ventral or basal. Fruit of cocci. Seeds albuminous or not. — Shrubs; leaves opposite or alternate, 1000 SYNOPSIS OF THE CLASSES, simple or compound, gland-dotted, exsti- pulate 315, 321 54. Zaxthoxyle.e. Flowers regular, often unisexual. Petals 3-5, imbricate or valvate. Stamens 3-5 or 6-10. Disk free. Ovary apo- or syn-carpous; cells 2-ovuled. Fruit various. — Trees or shrubs; leaves alternate or opposite, usually compound, gland-dotted, exstipulate 315, 323 55. Simarure^:. Flowers regular, uni- sexual. Petals 3-5-0, kypogynous, imbri- cate or valvate. Stamens 3-5 or 6-10-qo . Disk free. Ovary of 2-5 free or connate, usually 1-ovuled carpels. Fruit various. — Trees or shrubs, usually bitter ; leaves simple or compound, not gland-dotted . . . 326 56. Ochnaceje. Flowers $ , regular or sub-regular. Sepals 4-5. Petals 4-5 or 8-10. Stamens definite or oo, anthers with terminal pores. Disk usually large, not glandular. Car- pels 4-5-oo , l-oo -ovuled, free or connate, or connected at the base only by the gynobasic style, fleshy when ripe. Seeds albuminous or not. — Shrubs or trees ; leaves alternate, simple, rarely pinnate, stipulate . . . 329 57. Burserace.e. Flowers $, regular. Calyx 3-5-fid. Petals 3-5, imbricate or valvate in bud. Stamens 3-5 or 6-10. Disk free or adnate to the calyx-tube. Ovary entire, 2-5-celled ; cells 1-2-ovuled. Seeds exalbuminous. — Balsamic trees or shrubs; leaves alternate, compound, exstipulate . 331 58. Meliaceje. Flowers regular, ^ or unisexual. Calyx small. Petals 3-7, free or connate or adnate to the staminal tube. Stamens usually twice as many as the petals, monadelphous. Disk free. Ovary entire ; cells usually 2-ovuled. — Trees or shrubs; leaves usually compound, exstipulate . . 333 59. Chailletiace.®. Flowers £ or uni- sexual, regular. Sepals 5, free or connate. Petals 2-lobed. Stamens 5, free or adnate to the corolla. Disk various. Ovary entire ; cells 2-ovuled. — Trees or shrubs ; leaves alternate, simple, stipulate .... 336 Cohort VIII. oiacales. — Flowers regular, 3 or unisexual. Calyx small. Disk free, cupular or annular, rarely glandular or 0. Ovary entire, l-oo -celled ; ovules 1-3 in each cell, pendulous ; raphe dorsal, integuments confluent with the nucleus. Albumen usually copious, fleshy ; embryo small. — Shrubs or trees ; leaves alternate, simple, exstipulate. (This Cohort is closely allied to XXXVII., Santcdales.) 60. Oeacine.e. Petals usually valvate. Ovary 1- (rarely imperfectly 2-5-) celled, or with 3 unilateral cells. Fruit 1-seeded. See also 115, Cornea, and 214, Santa- lacece ........ 336 61. Ilicineje. Petals imbricate. Ovary 3-co -celled. Disk obsolete. Fruit of 3-oo 1- seeded pyrenes ...... 338 62. Empetriee. Sepals 2-3. Petals tree, imbricate. Filaments persistent. Disk 0. Stigma sessile, with radiating lobes. — Small shrubs with Heath-like leaves . . . 340 Cohort IX. Celastrales. — Flowers $ , regular ; corolla hypogynous or perigynous. Disk tumid, adnate to the base of the calyx-tube or lining it. Stamens as many as the petals or fewer, rarely twice as many, perigynous or inserted outside the disk or on its edge. Ovary usually entire ; ovules 1-2 in each cell, erect; raphe ventral. — Leaves undivided, except in Ampeliclece and Stapliyleacece. 63. Celastrine^:. Calyx small, imbri- cate. Petals 4-5, sub-perigynous, spreading, imbricate. Stamens 4-5, inserted at the outer base of the disk; filaments subulate. — Shrubs or trees ; leaves usually alternate, stipulate ....... 342 636. IIiptocratieje. Calyx small, im- bricate. Petals 4-5. Stamens 3, rarely 2, 4, 8, usually inserted on the face of the disk ; filaments flattened, recurved. — Shrubs or trees; leaves simple, usually opposite; sti- pules minute or 0 . . . . . 343 64. Stapiiyleace.e. Calyx large, imbri- cate. Petals 5, free. Stamens 5, inserted outside the disk ; filaments subulate. — Shrubs; leaves opposite, compound, stipu- late 344, 353 65. Stack nousiEiE. Calyx small. Petals 5, narrow, erect, often connate. Stamens 5, perigynous, inserted on the edge of the disk. COHORTS AND ORDERS. (BY THE EDITOR.) 1001 Ovary lobed. — Herbs ; leaves alternate, sim- ple, narrow ; stipules minute or 0 . . 346 66. ItHAMNEiE. Calyx-lobes valvate. Pe- tals imbricate, small, concave, or 0. ' Sta- mens usually perigynous, inserted on the edge of the disk, opposite the petals. Ovary free or adnate to the disk or inferior. — Trees or shrubs ; leaves alternate, stipulate . . 346 67. Ampelideje. Calyx small, lobes im- bricate. Petals valvate, caducous. Stamens inserted outside the disk and opposite to the petals. Ovary free. — Shrubs, usually climbers ; leaves simple or compound, stipu- late or not ....... 349 Cohort X. Sapindales. — Flowers often irregular and unisexual. Disk tumid, adnate to the base of the calyx or lining its tube. Stamens perigynous or inserted upon the disk, or between it and the ovary, usually definite. Ovary entire lobed or apocarpous ; ovules 1-2 in each cell, usually ascending with a ventral raphe, or reversed, or pendulous from a basal funicle, rarely oo horizontal. Seed usually exalbuminous. Embryo often curved or crumpled. — Shrubs or trees ; leaves usually compound. 68. SAriNDACE.E. Flowers often irregular. Petals 4-5 or 0. Stamens fewer or more than the petals, rarely as many. Ovary often excentric. Embryo exalbuminous, usually curved or spiral. — Leaves usually alternate, simple or compound, stipulate or not . . 351 69. AcEEiNEJi. Flowers regular. Petals 4-5 or 0. Stamens as many as the petals or more. Ovary central. Embryo albuminous ; cotyledons folded or convolute. — Leaves op- posite, usually simple, exstipulate . 353, 354 70. Hippocastane.®. Flowers irregular. Petals 4-5. Stamens 5-8, declinate. Em- bryo large, exalbuminous ; cotyledons fleshy, often connate. — Trees ; leaves opposite, com- pound, exstipulate .... 353, 356 71. MELiANTHEiE. Flowers irregular. Pe- tals 4 or 5, the fifth minute. Stamens 4, in- clined. Embryo small, green, in copious al- bumen.— Herbs or shrubs ; leaves simple or compound, usually stipulate . . 353, 358 72. SuiiACE.E. Flowers regular, usually $ . Bracts, sepals, petals and stamens usu- ally so whorled as to be more or less regu- larly opposite to one another. Stamens free or adnate to the petals, some often sterile. Embryo with thick or rugose or membranous and contorted cotyledons. — Trees or shrubs; leaves alternate, often simple, exstipulate . 359 73. Terebinth a cejs. Flowers regular or irregular, 5 or unisexual. Petals as many as the sepals or twice as many, or 0. Ovary 1-celled, with a 2-3-fid style, or 2-5- celled ; cells 1-ovuled ; ovules pendulous from a basal funicle, or attached to the inner angle of the cell. Fruit usually a drupe. Seeds exalbuminous. — Trees or shrubs; leaves various, exstipulate .... 360 Series III. CALYGIFLOBAL. Sepals connate (rarely free), often adnate to the ovary. Petals 1-seriate, perigynous or epigyuous. Disk adnate to the base of the calyx, rarely tumid or raised into a torus or gynophore. Stamens perigynous, usually inserted on or beneath the outer margin of the disk. Ovary frequently inferior. Cohort XI. Rosales. — Flowers usually 5 > regular or irregular. Carpels 1 or more, usually quite free in bud, sometimes variously united afterwards with the calyx-tube, or enclosed in the swollen top of the peduncle * Ovules inserted on the inner angle of the carpel, rarely basal or parietal. 74. Connaraceje. Flowers regular. Sta- mens definite. Carpels 1-5, free; ovules 2 ; styles usually distinct. in each carpel, basal, ortliotropous. Fruit a follicle. Seeds often albuminous. — Trees or shrubs; leaves alternate, compound, exsti- pulate 364 1002 SYNOPSIS OP THE CLASSES PAGK 75. Legcminos.e. Flowers regular or ir- regular. Stamens usually definite. Carpel 1, excentric; ovules anatropous or amphitro- pous; style terminal. Fruit various. Seeds rarely albuminous. — Herbs, shrubs or trees; leaves usually alternate, compound, and sti- pulate ........ 364 A 76. Rosace^e. Flowers usually regular. Petals 4-5, perigynous and sub-epigynous, or 0. Stamens usually oo. Carpels l-oo , free or variously connate ; ovules usually 2, ana- tropous; styles ventral or sub-terminal. Seeds exalbuminous. — Herbs shrubs or trees; leaves simple or compound, usually alter- nate and stipulate . ... . 374 Y 77. Saxifrages. Flowers regular. Pe- tals perigynous or epigynous. Stamens usually definite. Carpels free or connate ; styles free ; ovules anatropous. Seeds albu- minous.— Herbs shrubs or trees; leaves al- ternate opposite or whorled, simple or com- pound, stipulate or not . . . 380, 392 78. PniLADELPHEiE. Flowers regular. Petals epigynous, valvate or contorted. Sta- mens double the number of petals or more. Ovary many-celled ; styles combined ; ovules mail}'. Fruit capsular. Seeds albuminous. — Shrubs ; leaves opposite, simple, exstipulate. 393, 394 79. Erexiaceje. Flowers regular. Petals 5, perigynous, imbricate or contorted. Sta- mens 5, alternate with palmate scales. Ovary 5- celled ; style simple; ovules many, axile. Fruit a drupe or capsule. Seeds sub-albumi- nous. — - Shrubs ; leaves alternate, simple, coriaceous, exstipulate .... 396, 393 80. Ribesiace.£. (See 856.) 806. Begoniace.e. (See No. 107.) . . 453' 81. Cepiialoteje. Flowers regular. Calyx 6- fid. Corolla 0. Stamens 12, perigynous. Carpels 6, 1-ovuled. Follicles membranous. Seeds albuminous. — Scapigerous herbs with crowded radical leaves, some of which are transformed into pitchers .... 399 82. Franco A ceje. Flowers regular. Calyx 4-partite. Petals perigynous, clawed. Sta- mens 8 or 10, with alternating staminodes. Ovary oblong, 4-lobed at the top, 4-celled ; stigma sessile ; ovules many. Capsule lo- culicidal. Seeds albuminous. — Scapigerous herbs ; leaves radical . (Tribe 2) 392, 401 83. Parnassie.e. (See 85 a.) X 84. Crasstjlace as. Flowers regular. Pe- tals usually free, perigynous or sub-hypogy- nous. Stamens as many as the petals. Car- pels as many as the stamens, distinct, with a gland or scale at the base of each carpel, 2- oo -ovuled, follicular when ripe. Seeds ex- albuminous. — Herbs, rarely shrubs, usually succulent ; leaves various, exstipulate . . 403 * * Placentation parietal or basal. ( 85. Droseracejs. Flowers regular. Pe- tals 4-5, marcescent, perigynous or hypogy- nous. Ovary 1-celled ; styles distinct ; ovules many, parietal or basilar. Capsule 1-3-celled. Seeds albuminous. — Scapigerous herbs or small shrubs; leaves radical or alternate, clothed with stalked glands or fringed with bristles ....... 405 8 5a. Parnassieas, Flowers regular. Calyx 5-partite. Petals hypogynous or perigynous. Stamens 5, alternating with fringed stami- nodes. Ovary superior, 1-celled ; stigma sessile ; ovules many, parietal. Capsule 3- 4-valved Seeds albuminous. — Scapige- rous 1-flowered herbs ; leaves radical . 892, 402 856. Ribesiace.e Flowers regular. Pe- tals imbricate, and stamens 5, epigynous. Ovary 1-celled; ovules parietal. Berry many- seeded. Seeds albuminous. — Shrubs ; leaves scattered or fascicled, simple, exstipulate 393, 398 * * * Ovules usually 1 or few, pendulous from the top of the cell d 86. Hamameeide^;. Flowers regular, $ or unisexual. Petals 4-5, free or 0, perigy- nous or epigynous. Stamens oo in the ape- talous flowers, 4-5 in the petalous, alternating with staminodes. Ovary 2-celled; styles free ; ovules 2-oo . Capsule 2-valved. Seeds albuminous. — Shrubs or trees; ieaves alter- nate, simple, stipulate ..... 408 87. Balsamifltle. Flowers unisexual, in heads or catkins, braeteate. Perianth single or 0. Stamens crowded amongst the bracts ; anthers 4-angled. Ovary 2-celled; styles free; ovules oo. Capsules aggregated in heads, 2-valved. Seeds albuminous. — Trees and shrubs; leaves alternate, simple, stipu- late 411, 410 1 This division should perhaps form a separate Cohort, but the affinity between Saxifrages and Hama- melideos is very close indeed. COHORTS, AND ORDERS. (BY THE EDITOR.) 1003 88. BRuxiACEiE. Flowers regular, $ > in spikes or heads. Petals 4-5, perigynous. Stamens 4-5, free or adnate to the petals. Ovary free or inferior or semi-inferior, 1-3- celled; styles more or less connate; ovules pendulous, in the 1-celled ovaries 1 or 10, in the 2-3-celled 1 or 2 collateral from the inner angle. Fruit capsular or indehiscent. Seeds albuminous. — Shrubs ; leaves alternate, Heath-like, exstipulate .... 413 89. Hat.orage^:. Flowers regular, £ or unisexual. Petals 2-4, epigynous, or 0. Sta- mens definite. Ovary 1-4-celled ; styles 1-4 ; ovules solitary, pendulous in each cell. Fruit small, indehiscent. Seed albuminous. — Herbs or small shrubs ; leaves alternate, rarely op- posite or whorled, simple or much divided; flowers usually small, axillary . . . 414 Cohort XII. Myrtales. — Flowers regular usually inferior ; style undivided (very rarel basal. — Leaves simple, usually quite entir-e (: * Ovules pendulous from the top of the ovarian cell. 92. Rhizophorej:. Calyx-lobes valvate. Petals perigynous or epigynous, usually toothed or cut. Stamens 2-4 times as many as the petals. Ovary 2-fBceUed, superior or inferior. Albumen 0 or fleshy. — Trees or shrubs; leaves simple, opposite, stipulate, rarely alternate and exstipulate . , . 418 93. Cojibretace^e. Calyx-lobes valvate. Petals epigynous. Stamens usually definite. Ovary 1-celled ; ovules 2-5, funicles long. Drupe 1-seeded. Embryo convolute or folded, exalbuminous. — Shrubs or trees ; leaves op- posite or alternate, simple, very rarely 3- foliolate, exstipulate 420 * * Ovules usually numerous, and axile ( soli- tary or few, and apical or basal, in some Myrtacea, Mclustumacece, Onagrariece, and Trapeee). X 94. Myrtaceje. Calyx-lobes valvate or imbricate. Petals epigynous. Stamens oo, rarely definite. Ovary inferior, or semi- inferior, rarely free, l-oo -celled. Fruit a capsule or berry. Seeds exalbuminous. — Trees or shrubs; leaves opposite or alternate, simple, often 3-plinerved, usually exstipulate aud gland-dotted 422 PAGE 90. GuNNERACEiE. Flowers $ or uni- sexual, in dense or lax spikes, ebracteate. Calyx-teeth 2-3 or 0. Petals 2, epigynous, concave or 0. Stamens 2, opposite the petals when very large ; anthers basifixed. Ovary 1- celled ; styles 2 ; ovule 1, pendulous. Fruit indehiscent. Seed albuminous; embryo mi- nute.— Large or small herbs ; leaves alternate, simple, stipulate; flowers minute. 416 (and Gunnera ) 414 P91. Callitrichine.e. Flowers § or uni- sexual. Petals 0 or 2 scales. Stamens 1 or 2 at the base of the ovary ; anthers basifixed. Ovary 4-celled, 4-lobed; styles 2, filiform, distinct; ovules solitary, pendulous in each cell. Fruit indehiscent, 4-lobed. Seed al- buminous.— Tender water-herbs; leaves op- posite, simple, exstipulate .... 417 or sub-regular, usually $ . Ovary syncarpous, styles free) ; placentas axile or apical, rarely irely 3-foliolate in Combretacece'). 95. Na poi.eoneje. Calyx-lobes valvate. Corolla epigynous, simple and multifid, or double, the outer plaited, the inner multifid. Stamens many; filaments united into a pe- taloid cup, or free. Ovary 5-0-celled ; stigma discoid ; ovules several in each cell. — Shrubs ; leaves alternate, simple, exstipulate . . 426 96. Melastomaceje. Calyx-lobes usually imbricate. Petals epigynous or perigynous, contorted in bud. Stamens 3-12, usually de- cimate and of 2 forms; anthers usually open- ing by pores, inflexed in bud. Ovary free or adnate to the calyx-tube, l-2-oo -celled. Fruit capsular or berried. Seeds numerous, minute, rarely few large, exalbuminous. — Shrubs or trees, rarely herbs ; leaves opposite or whorled, simple, exstipulate, usually 3-5- piinerved ....... 428 97. LythrariEjE. Calyx-lobes valvate. Petals perigynous, rarely epigynous, usually crumpled in bud. Stamens usually definite. Ovary free, rarely adnate to the calyx-tube, 2- oo -celled ; cells oo-ovuled. Seeds small, exalbuminous. — Herbs trees or shrubs ; leaves usually opposite, simple, exstipulate . 432 98. Olinie.e. Calyx 4-5-toothed. Petals epigynous, with sometimes interposed scales. Stamens 4-5 -oc ; filaments flexuous in bud. Ovary 2-4— 5-celled ; cells 2-3-x -ovuled. 1004 SYNOPSIS OF THE CLASSES, PAGE Berry or drupe 3-4-celled. Embryo curved or spiral, exalbuminous. — Shrubs ; leaves opposite, simple, exstipulate, not gland- dotted 434 99. Granate.e. Calyx-lobes valvate. Pe- tals 5-7, epigynous, imbricate in bud. Sta- mens od, many-seriate. Ovary with 2 super- imposed tiers of cells, upper tier with parietal, lower with central placentation. Berry tra- versed by membranous septa. Seeds with fleshy testa, exalbuminous ; cotyledons con- volute. — A shrub ; leaves sub-opposite, simple, exstipulate, not gland-dotted . . 435 100. Onagrarie.e. Calyx-lobes valvate. Petals 2-4, epigynous, contorted. Stamens 2, 4, or 8. Ovary inferior, 2-4- rarely 1- celled ; cells 1-x -ovuled. Embryo exalbu- minous, straight. — Herbs shrubs or trees; leaves opposite or alternate, simple, exstipu- late 436 101. Trapeze. Calyx-lobes valvate. Pe- tals 4, epigynous. Stamens 4. Ovary semi- ! inferior, 2-celled; cells 1-ovuled; stigma ; flattened. Fruit indehiscent, 2-4-spined or horned, 1-seeded. Embryo exalbuminous ; cotyledons very unequal, one very large, the other minute. — Floating herbs ; leaves rosu- late, simple, exstipulate .... 439 Cohort XIII. Passiflorales. — Flowers usually regular, § or unisexual. Ovary usually inferior, syncarpous, 1-celled ; placentas parietal ; sometimes 3- or more- celled by the produced placentas ; styles free or connate. * Floivers 5 , except some Samydacece and Passijtorece. 102. Samydacece. Petals like the sepals or 0. Stamens -definite, alternating with scales, or 00. Ovary inferior or superior, and inserted by a broad base ; style rarely 3-5- fid. Embryo straight, albuminous. — Trees or shrubs ; leaves usually alternate, simple, sti- pulate or 0. (See also 21 Bixineai) . . 441 103. Loasece. Petals epigynous. Sta- mens 00, rarely definite, many usually im- perfect. Ovary inferior; ovules many. Cap- sule many-seeded. Embryo albuminous. — Herbs, often clothed with hooked or stinging hairs; leaves opposite or alternate, simple lobed or pinnatifid 442 104. Turxerace.e. Calyx-lobes imbricate. Petals 5, perigynous, contorted in bud. Stamens 5, sub-hypogynous. Ovary free ; styles 3. Capsule 3-valved. Embryo al- buminous. — Herbs or shrubs ; leaves alter- nate, simple or pinnatifid; stipules minute or 0 . . . . . . • 445 X. 105. Passielorece. Petals perigynous, often like the petals, or 0. Corona at the base of the petals single, treble, or absent, or reduced to scales. Ovary free ; style simple, or styles 3-5. Capsule or berry usually stipitate. Embryo exalbuminous. — Shrubs, usually scandent ; leaves alternate, simple or compound, stipulate or not, with or with- out lateral tendrils ..... 446 * * Flowers unisexual. 106. Cucdrbitacejd. Petals epigynous, usually confluent with the calyx. Stamens 3, rarely 5 ; anthers extrorse. Corona 0. Ovary inferior; placentas produced to the axis and revolute. Seeds exalbuminous. — Herbs or undershrubs, climbing or trailing ; leaves alternate, often lobed, rarely com- pound, exstipulate; tendrils 0 or lateral . 449 A 107. Begonia cece. Perianth-segments 2- oo , often 4, epigynous, outer sepaloid or all petaloid, rarely perianth tubular. Stamens 00 , rarely definite ; anthers adnate. Ovary usually 3-angled, 3-celled ; styles often 2-fid ; placentas axile, many-ovuled. Capsule or berry many-seeded. Seeds minute, albumen scanty or 0. — Herbs, succulent ; leaves alternate, often unequal-sided, entire toothed lobed or digitate, stipulate .... 453 108. Batisce.e. Perianth-segments small, epigynous. Stamens 4-ao ; anthers dorsifixed. Ovary usually gaping at the top. Capsule membranous, many-seeded. Albumen scanty. — Herbs or trees ; leaves alternate, simple or pinnate, exstipulate 453 Cohort XIV. Eicoidales. — Flowers regular or sub-regular. Ovary syncarpous, inferior semi-inferior or superior, 1-celled with parietal placentas, or 2-oo -celled with basilar or axile placentas. Embryo albuminous and curved, or cyclical, or exalbuminous and oblique. (This Cohort is allied to IV. Garyophyllinece, and XXVII., Chenopocliales .) COHORTS AND ORDERS. (BY THE EDITOR.) 1003 .PAGE 109. Cacte^e. Flowers 5 • Sepals petals and stamens usually oo. Ovary inferior, 1- celled, placentas parietal ; stigmas usually radiating. — Spinous and leafless (rarely leafy) succulent plants, stem often fleshy, angled or ribbed 457 110. Ficoidejj. Flowers § or unisexual. Calyx-lobes 4-5. Petals oo, or small or 0. Stamens few or oo. Ovary 2-oo -celled ; styles free or connate. — Herbs or undershrubs ; leaves quite entire ..... 4G1 111. Mesembryantheme.e. Flowers §. Calyx superior, 2-8-parted. Petals and sta- mens oo, oo-seriate, epigynous. Ovary in- ferior, several-celled, many-seeded; embryo curved, in floury albumen. — Succulent herbs or undershrubs ; leaves opposite or alternate, simple, often 3-gonous or cylindric, exstipu- late 4G1, 4G2 112. TETRAGONiEiE. Flowers 5 or ur,i" sexual. Calyx-lobes induplicate-valvate. Sta- mens 1-5-0, epigynous. Ovary inferior, 1-9- celled; styles 1-9; ovules 1, pendulous in each cell. Drupe with the accrescent calyx. Embryo anuular, in floury albumen. — Herbs or shrubs ; leaves sub-opposite or alternate, simple, succulent, exstipulate . . 4G1, 4G4 Cohort XV. TJmbellales. — Flowers regular, usually 5 • Stameus usually definite. Ovary inferior, l-2-oo -celled ; ovules solitary, pendulous in each cell from its top ; styles free or connate at the base ; ovules with the coats confluent with the nucleus. Seeds albuminous ; embryo usually minute. 113. Uhbeleifer.e. Flowers ^ • Petals imbricate, rarely valvate. Ovary 2-celled ; styles 2. Fruit of dry indehiscent meri- carps. — Herbs; stems often fistular; leaves alternate, usually much dissected, exstipu- late ; flowers umbelled, rarely capitate . 4G5 114. Araliace.e. Flowers $ . Petals valvate, rarely imbricate. Ovary l-oo -celled ; styles 2-co , or stigmas sessile. Fruit usu- ally a berry or drupe. Seed with a ven- tral raphe. — Trees or shrubs, rarely herbs ; leaves alternate, rarely opposite, usually com- pound, often stipulate ; flowers usually um- belled 471 115. Corner. Flowers g or unisexual. Petals valvate or imbricate. Ovary l-oo - celled ; style 1. Fruit a drupe. Seed with a dorsal raphe. — Shrubs or trees ; leaves usually opposite, simple, exstipulate ; flowers capitate or corymbose . . . . .475 116. Garryaceje. Flowers unisexual. Sepals of $ 4, valvate in bud ; of $ obsolete or 2-lobed. Stamens 4; anthers basifixed. Ovary 1-celled ; styles 2 ; ovules 2, collateral, pendulous. Berry 1-2-seeded. — Shrubs ; leaves opposite, simple, exstipulate ; flowers in drooping catkins ..... 477 DIVISION II. MONOPETALOUS. Flowers furnished with both sepals and petals, the latter connate. Exceptions. — Apetalous and polypetalous species occur in the orders Vrirnulacea-, Glcinece, and Plan- taginece ; and polypetalous ones also occur in Loheliacea, Erieacete, Monotropecs, Pyrolacca, Plumbaginea, Myrsinece, Sapotea, Cyrillece, Styraccis, Ebenacea, and Jasmincte. (See also the exceptions to Polypetalse, p. 995.) Series I. EPIGYNOUS. Ovary inferior (superior in some Goodeniacece and in Brunoniacece) . (See also 131, Vacciniecu , and 164, Gesneracece.') Cohort XVI. Caprifoliales. — Flowers regular or irregular. Stamens as many as the corolla-lobes, inserted on the corolla. Ovary inferior, 2-oo -celled ; cells 1-co -ovuled. Seeds albuminous or vei’y rarely exalbuminous. — Shrubs or trees, rarely herbs ; leaves opposite or whorled, often stipulate ; calyx never pappose. 100(3 SYNOPSIS OF THE CLASSES, PAGE 117. Caprifoliacej3. Flowers usually irregular. Corolla-lobes imbricate, rarely valvate. — Shrubs or trees, rarely herbs ; leaves usually exstipulate .... 479 X 118. Ruhiace.e. Flowers very rarely ir- regular. Corolla-lobes valvate contorted or imbricate. Styles 1-2. — Trees shrubs and herbs ; leaves opposite or whorled, quite entire, stipulate ; stipules leaf-like in one tribe 483 Cohort XVII. Asterales. — Flowers regular or irregular ; if unisexual, usually collected in involucrate heads. Stamens as many as the corolla-lobes, rarely fewer, inserted on the corolla. Ovary inferior, 1-celled, 1-ovuled (or if 2-3-celled, with one cell only ovuliferous). — Herbs or shrubs, rarely trees ; leaves exstipulate ; limb of the calyx usually reduced to a pappus or 0. 119. Vai.eriane.e. Flowers irregular. Corolla-lobes imbricate. Stamens ns many as the corolla-lobes or fewer. Ovary 3-celled, 2 cells 1-ovuled, one empty ; style 1 ; ovule pendulous. Seed exalbuminous. — Herbs; leaves opposite, simple or divided, exstipu- late 488 120. Calycere.®. Flowers ^ , regular. Corolla-lobes valvate. Stamens as many as the corolla-lobes. Ovary 1-celled ; ovule 1, pendulous. Seed albuminous. — Herbs; leaves alternate, exstipulate; flowers in involucrate heads 491 x 121- Dipsace.e. Flowers £ , irregular. Corolla-lobes imbricate. Stamens usually 4. Ovary 1-celled; ovule 1, pendulous. Seed albuminous.— Herbs; leaves opposite, exsti- pulate ; flowers usually in involucrate heads, rarely in axillary whorls, involucrate . . 493 122. Composite. Flowers unisexual or 5 . Corolla-lobes valvate. Stamens as many as the corolla-lobes ; anthers usually synge- nesious. Ovary 1-celled ; ovule 1, erect. Seed exalbuminous. — Herbs or shrubs, rarely trees ; leaves usually alternate, exstipulate ; flowers small or minute, in involucrate heads ; often dimorphous ...... 495 122a. (125.) Brtjnoniace^e. Flowers sub- regular, in an involucrate head. Corolla hypogynous, lobes valvate. Stamens hypo- gynous. Ovary 1-celled, 1-ovuled ; stigma indusiate; ovule erect. Fruit a utricle. Seed exalbuminous. — Scapigerous herbs ; leaves all radical 509 Cohort XVIII. Campanales. — Flowers most often irregular, rarely unisexual or col- lected into involucrate heads. Stamens as many as the corolla-lobes or fewer. Ovary 2-6-celled, rarely 1-celled ; style simple, stigma often indusiate ; ovules numerous in the cells, rarely solitary. 123. Stylidie.e. Flowers irregular. Co- rolla-lobes imbricate. Stamens 2, epigynous ; filaments confluent with the style in a long column, which is curved and irritable at the top. Ovary 1-2-celled. Capsule septicidal. Seeds albuminous. — Herbs, rarely under- shrubs; leaves scattered or whorled, exsti- pulate ........ 506 123a. (163.) Columelliaceje. Flowers sub-regular, corolla-lobes imbricate. Stamens 2 ; connective broad ; anther-cells sinuous. Ovary inferior, 2-celled; placentas on the septum, many-ovuled. Capsule woody, 2- valved. Seeds albuminous. — Evergreen trees or shrubs ; leaves opposite, exstipulate . . 593 124. Goodeniace.33. Flowers irregular. Corolla epigynous or perigynous; lobes in- duplicate-valvate. Stamens 5, epigynous. Ovary 1-2-4-celled ; cells 1-x -ovuled ; stig- ma indusiate. Fruit a drupe, berry or capsule. Seeds albuminous. — Herbs, rarely shrubby; leaves alternate, exstipulate .... 507 125. Brtjnoniace^:. (See 122a.) . . 509 126. Campanulace.®. Flowers regular, rarely in an involucrate head. Corolla epi- gynous, lobes valvate. Stamens epigynous. Ovary 2-5-celled; cells many-ovuled; style often furnished with collecting hairs; stigma not indusiate. Fruit capsular. Seeds albu- minous.— Herbs, usually milky; leaves rarely opposite, simple, exstipulate . . , .510 127. Lobeliacejj. Corolla epigynous, COHORTS AND ORDERS. (BY THE EDITOR.) 1007 lobes valvate. Stamens epigynous or epi- petalous, cohering in a tube. Ovary 1-3* celled; stigma not indusiate ; cells many* ovuled. Fruit a capsule or berry. Seeds PACE albuminous. — Herbs, rarely shrubby, usually milky ; leaves alternate or radical, exstipu- late 512 Series II. HYPOGYNOUS or PERIGYNOUS. Ovary superior, inferior in Vacciuiece and some Primulacece , Myrsinece, Styraeece, and Gesneracece. (See also exceptions to Series I.) * Floivers usually regular. Cohort XIX. Ericales. — Corolla kypogynous. Stamens as many or twice as many as the corolla-lobes, epipetalous or hypogynous. simple, entire or lobed. Seeds minute. ^ 128. Ericineu:. Corolla hypogynous, mono- rarely poly-petalous ; lobes 4-5, con- torted or imbricate. Stamens 8-10, rarely 4-5; anthers 2-celled, opening by terminal pores, rarely by slits. Disk glandular. Fruit a capsule berry or drupe. Seeds albuminous. — Shrubs or trees; leaves opposite or alter- nate, usually evergreen, exstipulate . . 514 129. Moxotrope Corolla hypogynous, mono- or poly-petalous ; lobes 4—5, imbricate. Stamens 8-10, hypogynous ; anthers 1-2- celled, opening variously. Disk glandular. Capsule loculicidally 4-5-valved. Seed with a loose testa and undivided minute exalbu- minous embryo. — Farasitic fleshy brown leaf- less herbs ....... 517 130. Pyrolaceje. Corolla hypogynous, polvpetalous or nearly so; petals 5, imbricate. Stamens 10, hypogynous; anthers 2-celled, opening by pores or slits. Disk glandular. Capsule loculicidally 3-5-valved. Seeds with a loose testa and minute undivided exal- buminous embryo. — Perennial scapigerous herbs; leaves alternate, evergreen, exstipu- late 519 Ovary l-oo -celled; cells l-oo -ovuled ; stigma 131. Vacciniejs. Corolla epigynous, mo- nopetalous ; lobes 4-5-6, imbricate. Sta- mens 8-10-12, epigynous; anthers 2-celled, opening by pores. Berry 4-10-celled, many- seeded. Seeds albuminous.— Shrubs or trees ; leaves alternate, exstipulate .... 520 ^ 132. Ei'acride.e. Corolla hypogynous, monopetalous ; lobe3 4-5, valvate or imbri- cate. Stamens hypogynous or epipetalous, 4-5, rarely 8-10; anthers 1 -celled, opening longitudinally. Disk cup-shaped or glandu- lar. Ovary 2-oc -celled ; cells l-oo -ovuled. Fruit a capsule or drupe. Seeds albuminous. — Shrubs or small trees, leaves alternate, rarely opposite, often Heath-like, sometimes sheathing, exstipulate 522 133/ Diapensiace.e. Corolla monopeta- lous, hypogynous ; lobes 5, imbricate. Sta- mens 5. epipetalous, often alternating with staminodes ; anther-cells 2-valved. Disk 0. Capsule 3-4-celled, loculicidally 3-4-valved. Seeds albuminous, testa firm or lax. — Small herbs ; leaves alternate, crowded or scattered, evergreen, exstipulate ..... 524 Cohort XX. Primulales. — Corolla regular, hypogynous, rarely epigynous, mono- rarely poly-petalous. Stamens equalling the corolla-lobes and opposite to them, or if more, one series always opposite them, hypogynous or epipetalous. Ovary 1-celled, with free basal placentation. — Herbs or shrubs, rarely trees ; leaves rarely opposite, exsti- pulate. Embryo straight, in floury albumen. — Herbs, s 134. PETJMBAGINE.E. Corolla mono-poly- petalous, hypogynous; lobes 5, contorted or imbricate. Stamens 5, hypogynous or epipetalous. Ovary 1-celled; styles 3-5; ovule 1, pendulous from a basal funicle. Fruit membranous, included in the calyx. sometimes shrubby below ; leaves alternate, exstipulate, base often amplexicaul M 135. Primulace^:. Corolla monopetalous, hypogynous, rarely epigynous, rarely 0 ; lobes 4-5, contorted or imbricate. Stamens 525 '1008 SYNOPSIS OF THE CLASSES, 4-5, opposite tlie corolla-lobes. Ovary rarely inferior, 1 -celled ; placenta central, globose, many-ovuled. Capsule 3-5-valved. Seeds albuminous. — Herbs; leaves radical alter- nate opposite or whorled .... 528 136. Myrsineje. Corolla mono- rarely poly-petalous, hvpogynous or epigynous ; lobes 4-5, usually contorted. Stamens 4-5, epipetalous, opposite the corolla-lobes or petals, sometimes alternating with stami- nodes. Ovary 1-celled ; placenta central, globose. Fruit a 1- or few-seeded drupe or berry, rarely a follicle. Seeds albuminous. — Trees or shrubs ; leaves usually alternate, gland-dotted, exstipulate . . . 531 Cohort XXI. Ebenales. Corolla mono-poly-petalons, hypogynous or epigynous, rarely perigynous. Stamens usually many more than the corolla-lobes, if equalling them alternate with them (except Sapotece). Ovary 2-oo -celled ; cells usually few-ovuled. Fruit rarely capsular. — Shrubs or trees ; leaves alternate, exstipulate. 137. Sapoteje. Corolla monopetalous, hypogynous ; lobes 4-8, imbricate in 1 or 2 series. Stamens equalling the corolla-lobes and opposite them, with alternating stami- nodes, or many and 2-seriate ; anthers usually extrorse. Ovary many-celled ; cells 1-ovuled. Fruit a l-x> -seeded berry. Seeds with a thick often hard shining testa, long broad hilum, scanty fleshy albumen, and large em- bryo.— Trees or shrubs, with milky juice; leaves alternate, quite entire, exstipulate . 535 138. Ebenace.e. Corolla monopetalous, hypogynous ; lobes 3-7, contorted-imbricate. Stamens hypogynous or epipetalous, 2-4 times as many as the corolla-lobes, or if equal alter- nating with them, or oo ; anthers introrse. Ovary 3-ao -celled ; ovules 1-2 in each cell, pendulous. Berry globose or ovoid, few- seeded. Embryo short, in copious cartila- ginous albumen. — Trees or shrubs ; leaves alternate, coriaceous, exstipulate, quite entire 537 139. CYRiLLEiE. Corolla sub-polypetalous, hypogynous; petals 5, contorted or convolute. Stamens 5 or 10, hypogynous ; anthers in- trorse. Disk 0. Ovary 2-4-celled ; ovules l-oo in each cell, pendulous. Fruit a cap- sule or drupe. Embryo straight, in fleshy albumen.— Shrubs ; leaves alternate, mem- branous, quite entire, exstipulate . . 539 140. Styracejs. Corolla mono-poly- petalous, perigynous or epigynous ; lobes or petals 5-7, imbricate valvate or con- torted. Stamens inserted at the base of the corolla, 5-oo , l-oo -seriate, free, scattered or fascicled or l-oo -adelphous; anthers introrse. Ovary 2-5-celled ; cells l-oo -ovuled ; ovules various in insertion and direction, upper or all pendulous. Fruit fleshy or hard, 1-celled, few-seeded. Embryo straight, in fleshy albumen. — Shrubs or trees ; leaves alternate, exstipulate ...... 541 Cohort XXII. Gentianales. — Corolla mono- rarely sub-poly-petalous, hypogynous Stamens equalling the corolla-lobes or fewer, always inserted on the corolla, and usually included in its tube. Ovary usually syncarpous and 2-celled. — Herbs shrubs or trees ; leaves very rarely alternate, or stipulate. 141. Jasmines. Corolla-lobes 5-8, im- bricate. Stamens 2. Ovary 2-celled ; cells l_2-ovuled. Fruit a berry or capsule. Seeds exalbuminous. — Shrubs, often climbing, or trees ; leaves opposite or alternate, simple or 1-7-foliolate, exstipulate .... 543 142. Oleineje. Corolla-lobes 4 (or corolla 0), valvate. Stamens 2, inserted on the corolla or hypogynous. Ovary 2-celled ; cells 2-3-ovuled. Fruit various. Seed al- buminous.— Shrubs or trees; leaves opposite, simple or compound, exstipulate . . 545 143. Salvadorace^:. Corolla-lobes 4, im- bricate. Stamens 4, alternate with the corolla-lobes. Disk 4-lobed. Ovary 2- celled ; ovules geminate in each cell. Fruit indehiscent. — Shrubs or trees ; leaves oppo- site ; stipules minute ..... 547 / 144. Atocyne^e. Corolla-lobes contorted or valvate. Stamens as many as the corolla- lobes ; anthers often sagittate ; pollen gra- nular. Carpels 2, distinct or cohering ; style COHORTS AND ORDERS. (BY THE EDITOR.) 1000 1, often dilated below the usually 2-fid stigma ; ovules many. Fruit and seeds various. — Trees or shrubs, rarely herbs, often climbing; juice milky; leaves opposite or whorled (rarely alternate) ; stipules 0 or of cilia 548 X 145. Asclepiadejs. Corolla-lobes 5, usually contorted. Stamens usually cohering in a crown, and clasping the top of the short style ; anther-cells 2-4 ; pollen agglutinated in waxy masses, those of the adjacent anthers often united in pairs. Ovary of 2 free carpels ; stigmas 2, connate ; ovules many. Fruit of 1 or 2 follicles. Seeds often comose. — Trees or shrubs, often climbing ; leaves opposite, rarely whorled alternate or obsolete, exstipulate 551 140. Loganiace.®. Corolla-lobes 5-10, valvate imbricate or contorted. Stamens as many as the corolla-lobes, and opposite them when 10, alternate when 5. Ovary 2-4- celled ; cells l-oo -ovuled. Fruit various. Seed albuminous. — Trees or shrubs ; leaves opposite, stipulate or with dilated petioles . 555 y 147. Gentiane^:. Corolla - lobes con- torted valvate or induplicate. Stamens as many as the corolla-lobes, alternate with them. Ovary 1- rarely sub-2-celled ; pla- centas parietal; ovules many, horizontal. Capsule septicidal. Seeds small, albuminous. — Glabrous herbs, rarely shrubby below ; leaves opposite or whorled, quite entire, exstipulate (alternate and 3-foliolate in Menyantliece ) ...... 558 Cohort XXIII. Polemoniales. — Corolla liypogynous, monopetalous, regular. Stamens as many as the corolla-lobes, and inserted on the tube ; filaments usually exserted. Ovary 1-5-celled, syncarpous (except Dicliondrece and Nolcmece ) ; cells 1-2- very rarely oo -ovuled. Embryo albuminous. — Herbs, rarely shrubby below ; leaves alternate or 0, exstipulate. 148. IlYDRorHYLLEiE. Corolla on a hypogynous disk ; lobes 5, imbricate. Sta- mens 5, inserted at the base of the corolla- tube ; filaments slender, exserted, often appendaged at the base. Ovary 1-2-celled ; style slender, 2-fid ; ovules 2 or more on each of 2 placentas. Capsule 2-valved ; embryo straight, in cartilaginous albumen. — Herbs; juice watery 560 149. IlYDROLEACEiE. Corolla hypogynous; lobes 5, imbricate. Stamens inserted on the corolla-tube ; filaments slender, exserted. Disk 0. Ovary 1-2-celled; styles 2, distinct; ovules many. Capsule 2-valved. Seeds minute ; embryo straight in scanty albumen. — Herbs ....... 561 )( 150. Polemoniaceje. Corolla hypogy- nous ; lobes 5, contorted. Stamens inserted on the middle or top of the corolla-tube ; filaments exserted, sometimes unequal. Disk glandular. Ovary 3-5-celled ; style 3-5-fid ; ovules solitary and erect, or many 2-seriate and ascending. Capsule 3-5-valved. Embryo straight, in flesh}' albumen. — Herbs, rarely undershrubs ; leaves alternate, or the lower opposite 563 y 151. Convolvulaceje. Corolla-lobes 5, contorted. Stamens inserted at the base of the corolla-tube; filaments included or ex- serted, equal or unequal. Disk usually annular. Ovary 1-4-ceiled, syncarpous ; style usually slender; ovules 1-2 in each cell, basal, erect. Capsule (rarely a berry) 1-4-celled. Embryo curved, with crumpled cotyledons and scanty mucilaginous albumen. — Herbs, usually twining, rarely shrubs ; juice often milky 565 152. Dichondrejs. Corolla-lobes 5, val- vate. Stamens inserted on the corolla. Ovary apocarpous ; carpels 2-4, 2-ovuled ; styles basal; ovules erect. Utricles 2, 1- seeded. Embryo curved ; cotyledons crum- pled, in scanty albumen. — Small herbs, erect or prostrate 567 153. CuscuTEiE. Corolla-lobes 4-5. Sta- mens inserted on the corolla-tube, with often as many fimbriate scales below their in- sertion, included. Disk 0. Ovary 2-celled ; styles 2, free or connate ; ovules 2, erect in each cell. Capsule 2-celled, circumsciss at the base. Embryo spiral, in copious fleshy albumen. — Leafless parasitic filiform twining herbs 5G8 y 154. Borragine.®. Corolla-lobes 4-5, imbricate. Stamens often conniving into a tube around the style, sometimes cohering T 1010 SYNOPSIS OF THE CLASSES, at the tips. Dish annular or cupular. Ovary of 2 bipartite 2-celled carpels ; style gyno- basic ; stigma simple ; ovules pendulous. Fruit of 4 nucules or a 2-4 pyrened drupe. Embryo usually exalbuminous ; cotyledons flat. — Herbs, rarely shrubs, usually hispid or prickly ; leaves quite entire ; inflorescence scorpioid ....... 569 155. Cordiaceje. Corolla-lobes 4-5, con- torted. Stamens 5 ; filaments usually long, exserted ; anthers distant. Disk annular or capsular. Ovary 4-8-celled ; style, forked or twice forked at the top ; ovules pendulous or erect. Drupe with a 1- or 4-8-celled stone. Embryo exalbuminous; cotyledons longitu- dinally folded. — Trees or shrubs ; leaves scabrous , . 573 156. Nolaneae. Corolla - lobes 5-10, folded. Stamens 5; filaments slender, ex- serted. Disk fleshy. Carpels numerous, distinct, crowded on the receptacle, 1-celled, 1-ovuled. Style simple ; stigma capitate ; ovule erect. Drupes distinct ; embryo curved in fleshy albumen.— Herbs ; leaves geminate, quite entire ; peduncles solitary, axillary 574, 580 Cohort XXIV. Solanales. — Corolla monopetalous, liypogynous, regular or oblique. Stamens as many as the corolla-lobes, epipetalous, equal or unequal. Ovary 2-celled, syn- cai’pous ; cells very numerous, very many-ovuled. — Herbs, rarely shrubs or trees; leaves alternate or geminate, rarely opposite, exstipulate. 157. SoLANEaD. Corolla-lobes 4 or 5, in- duplicate or contorted. Stamens 4-5, in- cluded or exserted ; filaments short or long. Disk annular, cupular or 0. Ovary 2-celled, placentas on the septum; style simple; ovules very numerous. Fruit a 2-celled capsule or berry. Embryo curved or annular in fleshy albumen. — Herbs, rarely shrubs ; upper leaves often geminate .... 575 158. Cestrine.e. Corolla-lobes 4-5, in- duplicate. Stamens 4-5, included. Disk annular or cupular. Ovary 2-celled ; pla- centas on the septum ; style simple ; stigma capitate; ovules few or many. Fruit a capsule or berry. Embryo straight, albu- minous.— Shrubs or trees .... 582 * * Flowers very irregular, rarely regular. Cohort XXV. Personates. — Corolla monopetalous, liypogynous, often 2-labiate. Stamens fewer than the corolla-lobes, rarely as many, unequal, most often 4 didynamous, or 2. Ovary 1-2- veiy rarely 4-celled ; style simple ; stigmas 1-2; ovules usually very numerous. Fruit usually capsular. — Herbs, rarely shrubs or trees ; leaves exstipulate. 159. ScROPnuLAR 1 n e .e . Corolla often 2- lipped ; lobes imbricate or folded. Stamens 4 didynamous, or 2. Ovary 2-celled ; pla- centas on the septum ; style simple ; stigmas 1-2 ; ovules definite or 00. Fruit a capsule, rarely a berry. Embryo straight or curved, albuminous. — Herbs, very rarely shrubs or trees ; leaves opposite, alternate or whorled, simple 583 160. Verbasce^s. Corolla sub-regular ; lobes 5, imbricate. Stamens 5, unequal, exserted; anthers sub-l-celled. Ovary 2- celled ; placentas on the septum, many- ovuled. Capsule 2-valved. Embryo straight, albuminous. — Herbs ; leaves alternate . 588 161. Utric claries. Corolla 2-lipped; lobes imbricate. Stamens 2, included ; anthers 1-celled. Ovary 1-celled ; placenta globose, basal, many-ovuled; stigma 2-lipped. Fruit capsular. Embryo straight, undivided, exalbuminous. — Scapigerous herbs, often floating; leaves radical, entire or capillary and multifid ...... 589 162. Orobanche^i. Corolla 2 -lipped; lobes imbricate. Stamens 4 didynamous. Disk fleshy. Ovary 1- rarely 2-celled ; placentas parietal, many-ovuled. Capsule 2-valved. Embryo minute, in fleshy albumen. — Parasitic leafless herbs .... 591 163. Coltjmelliaceje. See 123 a . 593 164. Gesxeraceje. Corolla more or less 2-lipped, liypogynous perigynous or epigy- nous ; lobes 5, imbricate. Stamens usually 4 didynamous ; anthers often cohering. COHORTS AND ORDERS. (BY THE EDITOR.) 1011 Disk annular or unilateral. Ovary 1-celled, superior; placentas 2, parietal, niany-ovuled. Fruit a berry or capsule. Seeds minute. Embryo straight, albuminous or not. — Herbs, rarely shrubs ; leaves usually opposite or -wkorled, exstipulate ..... 595 165. Ramon die®. Corolla nearly regular, rotate ; lobes 5, imbricate. Stamens 5, sub- equal ; anthers with short terminal slits. Ovary 1-celled ; placentas parietal, many- ovuled. Capsule septicidally 2-valved. Seeds minute, hispidulous. Embryo straight, albu- minous— A scapigerous herb . . . 599 1G6. Bignoniace®. Corolla usually 2- lipped ; lobes 5, imbricate. Stamens usually 4 didynamous, or 2. Disk glandular. Ovary 1-celled with parietal placentas, or 2-celled with placentas along the edges of the septum ; ovules oo. Capsule 1-2-valved. Seeds large, imbricate, usually broadly winged. Embryo straight, exalbuminous ; cotyledons broad, flat. — Trees or shrubs, rarely herbs, erect or climbing ; leaves usually opposite, often compound and cirrhose, exstipulate . 600 167. Crescentie®. Corolla sub- 2-lipped ; lobes imbricate. Stamens 4 didynamous. Disk annular. Ovary 1- or spuriously 2-1- celled ; placentas 2-4, parietal, many-ovuled. Fruit woody or fleshy, indehiscent. Seeds large, buried in pulp ; embryo exalbuminous; cotyledons fleshy.. — Trees or shrubs ; leaves alternate opposite or whorled, exstipulate . 603 168. Acanthace®. Corolla usually 2- lipped; lobes imbricate or twisted. Stamens 4 didynamous, or 2. Disk cupular or annular. Ovary 2-celled ; cells 2-oo -ovuled ; placentas usually on the septum ; ovules often inserted on processes of the placenta. Capsule 2- valved. Embryo exalbuminous ; cotyledons large, sometimes crumpled. — Herbs, rarely shrubs ; nodes tumid ; leaves opposite or whorled, exstipulate ..... G04 169. Sesame®. Corolla 2-lipped; lobes imbricate. Stamens 4 didynamous, or 2 ; anther-cells shorter than the connective ; tip glandular. Disk annular or cupular. Ovary 1-4-celled ; stigma 2-lamellate ; pla- centas axile or parietal ; ovules few or many. Fruit a capsule or drupe, often of remarkable form. Embryo straight, exalbuminous or nearly so. — Herbs with vesicular glands ; leaves opposite or alternate, exstipulate . 607 Cohort XXVI. Lamiales. — Corolla usually 2-lipped, rarely sub-regular or quite regular, hypogynous. Stamens fewer than the corolla-lobes, rarely as many, unequal, most often 4 didynamous, or 2. Ovary 2-4-celled ; style simple ; ovules solitary in the cells (rarely 2 or more in some Myoporinece and Verlenacece) . Fruit an indehiscent 2-4-celled drupe or of 2-4 nucules. — Leaves exstipulate. 170. Mvoporine®. Corolla sub-regular or 2-lipped ; lobes 5, imbricate. Stamens 4, sub-equal or didynamous ; anther-cells con- fluent. Ovary of 2 carpels, usually 4-celled, with 2 ovules in each cell, separated by a septum. Fruit a 2-4-celled drupe. Embryo cylindric in scanty albumen. — Shrubs or undershrubs, leaves alternate, often gland- dotted 610 171. Selagine®. Corolla sub-regular or 2-labiate ; lobes 4-5, imbricate. Stamens 4 sub-equal, or 2 ; anthers 1-celled. Ovary 2- celled ; stigma simple ; ovules 1, pendulous in each cell. Fruit of 1 or 2 unequal achenes or utricles. Embryo straight in fleshy albumen. — Herbs or undershrubs ; leaves alternate fascicled or sub-opposite, narrow ....... 611 172. Stilbine®. Corolla sub-regular ; lobes 5, imbricate. Stamens 4, equal ; filaments slender, exserted ; anthers 2-celled. Ovary dicarpellary, 1-2-celled ; cells 1- ovuled or one cell empty; stigma simple; ovule 1, erect. Fruit a 1-seeded utricle, or 2-celled 4-valved loculicidal capsule. Em- bryo sub-cvlindric in fleshy albumen. — Heath- like shrubs ; leaves whorled . . . 613 173. Verbenace®. Corolla regular or 1- 2-lipped ; lobes 4-5, imbricate. Stamens 4 didynamous, or 2, very rarely 5 ; anthers 2- celled. Ovary 2-4-8-celled ; stigma simple or 2-fid ; ovules 1 or geminate in each cell. Fruit a drupe, with 2-4 1-2-celled pyrenes; or a 1-4-celled berry. Embryo straight in scanty albumen ; cotyledons foliaceous.— Herbs, shrubs, or trees ; leaves opposite or whorled, rarely alternate, simple or compound 615 174. Globelarie®. Corolla 1-2-lipped ; 3 2 1012 SYNOPSIS OP THE CLASSES, lobes imbricate. Stamens 4, didynamous ; anther-cells confluent. Ovary 1-celled ; style slender, stigma simple or 2-lobed ; ovule solitary, pendulous. Caryopsis invested by the calyx, mucronate. Embryo straight, in fleshy albumen. — Herbs or shrubs; leaves alternate, quite entire ; flowers in an involu- crate head 618 175. Labiate. Corolla 2-lipped, rarely sub-regular ; lobes 2-5, imbricate. Stamens 4, did^ynamous, rarely sub-equal, or 2 ; anther- cells often confluent at the tip, sometimes separated. Disk thick. Ovary of 2 2- partite carpels; lobes 1-ovuled; style slender, simple, unequally 2-lobed, gynobasic ; ovule solitary, erect in each lobe. Fruit of 4 nucules. Embryo straight, rarely curved, exalbuminous or with thin albumen. — Herbs, rarely shrubs, often strong-scented ; leaves . PAGE opposite or whorled ; flowers usually in false whorls 620 ANOMALOUS ORDER. 176. Plantaginejs. Flowers g or uni- sexual. Corolla scarious, monopetalous, hypogynous, 3-4-lobed, lobes imbricate, or 0. Stamens 4, inserted on the corolla, or hypogynous ; filaments very slender, ex- serted, persistent; anthers large, versatile, deciduous. Ovary free, with 2-4 1-8- ovuled cells, or 1-celled and 1-oVuled; style filiform with 2 lines of stigmatic papillae. Fruit a circumsciss capsule or bony nucule. Seeds peltate ; embryo straight or curved ; albumen fleshy. — Scapigerous herbs, rarely shrubby below ; leaves alternate or radical, rarely opposite; scapes axillary from the lower leaves ; flowers inconspicuous . . 623 DIVISION III. APETALOUS or INCOMPLETE-FLOWERED. Flowers with a single floral envelope (the calyx), or 0. Exceptions. — A double floral envelope occurs in some Paronychiece, Euphorbiacca, Rafflesiaceeg, Loravthacc 211. C UPTJLiFERiE. Perianth of un- equally lohed; of § 6-lobed. Ovary 2-6- celled. Fruit of 1-3 1-seeded nuts in an involucre. — Leaves simple, alternate, stipu- late ........ 714 212. CoRYLACEiE. Perianth of a stami- niferous scale ; J irregularly lohed. Ovary 1-celled, with 2 ovules, pendulous from pro- minent placentas. Fruit a 1-seeded nut, enclosed in the accrescent foliaceous tubular bracteoles. — Leaves simple, stipulate . . 716 Santalales. — Flowers § or diclinous. Perianth usually conspi- Ovary l-oo -celled ; cells 1— oo -ovuled ; ovules Fruit a 1-seeded berry or drupe. — Parasitic herbs or This Cohort is closely allied to VIII., Olacales. Cohort XXXVII. cuous, coloured, polymorphous and valvate. usually reduced to a naked nucleus, shrubs. 213. LoRANTHACEiE. Flowers ^ j rarely diclinous. Perianth often coloured, garno- or poly-sepalous, valvate. Stamens inserted on the perianth-lobes or segments. Ovary 1- celled ; ovule solitary, erect, adnate to the cell-wall. Embryo in fleshy albumen. — Shrubs, parasitic on branches; leafless, or leaves thickly coriaceous, exstipulate . . 718 214. SANTALACErE. Perianth and sta- mens of Lorcmthacece. Ovary 1-celled ; ovules 2- oo , pendulous from a free central column. Embryo in fleshy or dry albumen. — Shrubs or herbs, parasitic on roots or branches ; leaves opposite or alternate, exstipulate . . .722 215. Grubbiacf.je. Flowers in small 217. Piperaceje. See 206a . . . 728 I 218. SAURUREiE. See 2066 . . . 731 I axillary cones. Perianth of 4 valvate seg- ments. Stamens 8. Ovary 2-celled at first, with one pendulous ovule in each cell. Em- bryo in fleshy albumen. — Shrubs ; leaves opposite, ericoid, exstipulate . . . 725 216. Balanomore-E. Flowers 1-sexual, sometimes $ ( Cynomorium ). Perianth usually 3-lobed, valvate; J various or 0. Stamens usually 3, monadelphous (1 in Cy- nomorium'). Ovary 1-2-celled ; ovules 1 in each cell, pendulous, often adnate to the cell- wall. Embryo undivided, in fleshy or granu- lar albumen. — Fleshy scapigerous leafless root-parasites 726 219. Chloranthace-e. See 206c . . 733 220. Cera to p n y ll e .e. See 206ri . . 735 Incomplete-flowered Orders of unknown or very dubious Affinity. 221. PoDOSTEMACEiE. Flowers ^ or di- clinous. Perianth 0 or simple. Stamens definite or indefinite, hypogynous. Ovary superior, 1-3-celled; cells many-ovuled ; placentas axile or parietal ; ovules anatropous. Fruit capsular. Embryo exalbuminous ; radicle superior. — Aquatic herbs often re- sembling Kepaticce, or Musci, or Alya . .737 222. BATiDEiE. See also 46 . . 305, 738 Sub-class II. Gymnospermous. Ovules produced superficially on a scale (bract or open ovary) ; fertilized by the direct application of the pollen to the apex of the nucleus, which the pollen-tube penetrates. — Flowers unisexual (except in Welwitschia). 223. CoNiFERiE. Stem branched, exo- genous, with slender pith and no proper vessels (vascular tissue proper). Leaves op- posite whorled or fascicled, simple; nerves simple. Perianth 0 .... 739 ;. 223a. Gnetaceje. Stem branched, exo- genous, or tissues confused, with slender pith and proper vessels. Leaves 0 or opposite; nerves branched (except Welivitschia). Peri- anth of bracts or scales .... 748 X 224. C ycade.e. Stem simple, rarely branched or 0 ; pith large and proper vessels abundant. Leaves compound; nerves straight. Perianth 0 ...... 750 COHORTS AND ORDERS. (BY THE EDITOR.) 1017 CLASS II. MONOCOTYLEDONS. Stem without distinct layers of wood surrounding a column of pith, or a separable bark. Leaves with usually parallel venation. Floral whorls when present usually in threes or multiples of three. Embryo with one cotyledon. In germination adventitious roots usually at once proceed from the radicular end of the embryo. (Obscure rings of wood and a bark are distinguishable in some arborescent Asparagi. Net-veined leaves occur in Dioscorece, Smilacece, and a few other Orders.) DIVISION I. Ovary inferior (superior in some Bromeliacece and Hcemodoracece) . Perianth usually distinct, 2-seriate and coloured. * Albumen 0 ; embryo distinct. Cohort I. Hydrales. — Flowers usually diclinous, regular. Perianth 6-partite, 3 outer segments herbaceous, 3 inner petaloid or 0. Stamens 3 or more, epigynous or inserted on the base of the perianth-segments. Ovary 1, 3, or 6-cellcd, Fruit a berry. Embryo distinct, exalbuminous. Aquatic herbs. 1. IIl'DROCHARIDEiE 754 * * Albumen floury , embryo distinct. Cohort II. Amomales. — Flowers usually $ and very irregular (regular in Brorne- lioxeai). Perianth of 5-6 segments. Stamens 6, 1 or 5 antheriferous, the rest petaloid, all antheriferous in Bromeliacece. Ovary usually y PAGE 2. Canx.vce.r. Flowers irregular. Perianth 6-partite, 3 outer segments herba- ceous, regular; inner petaloid, irregular. Stamen 1, lateral ; anther 1-celled . . 757 "f 3. Z ingiber ACEiE. Flowers 5 , irregular. Perianth of Cannciccce. Stamen 1, anterior ; anther 2-celled ...... 760 3-celled. Fruit a berry or capsule. PAGE 4. Mu saceut. Flowers irregular, unisexual. Perianth 6-partite. Stamens 6, or 5 and a staminode ; anthers 2-celled . . . 762 5. Bromeliace^;. Flowers $ , regular or nearly so. Perianth (sometimes superior) 6-partite; 3 outer segments herbaceous, 3 inner petaloid. Stamens 6, all perfect . 766 * * * Albumen 0 or cellular ; embryo veiy obscure. Seeds very minute ( except Taccaceae). Cohort III. Orchidales. — Flowers $ and very irregular. Perianth of 6 I’arely 3 segments. Stamens 1, 2, or 3, confluent with the style. Fruit capsular. Embryo very minute. 6. Orcfiide.e. Perianth very irregular. Stamens 1 or 2, confluent with the style and stigma. Ovary 1-celled, rarely 3-celled . 769 7. Apostasiace.e. Perianth sub-regular. Stamens 2 or 3, adnate to the base of the style. Ovary 3-celled .... 777 Cohort IV. Taccades. — Flowers $ , regular. Perianth 6-lobed. Stamens 3 or 6, inserted on the periantli-tube ; anthers peculiar. Ovary 1- or 3-celled. Fruit capsular or berried. Seeds minute, exalbuminous, or larger and albuminous. 8. Burmanniace.®. Leaves 0, or narrow I 9. Taccacebe. Leaves broad, with a mid- with parallel venation, or broader and net- rib and parallel diverging veins. Seed albu- veined. Seeds minute ; embryo obscure . 777 ! minous ; embryo minute .... 780 1018 SYNOPSIS OP THE CLASSES, * * * * Albumen fleshy or horny ; embryo distinct. ( See also Taccaceas). Cohort V. Narcissales. — Flowers $ , regular or irregular. Perianth usually petaloid. Stamens 8 or 6, inserted on the perianth-tube. Ovary 3-celled. Seeds with copious fleshy or horny albumen and a distinct embryo. — Leaves parallel-veined. 10. Iiudeu3. Perianth regular or irregu- lar. Stamens 3 ; anthers extrorse . . 782 11. Amarylliders. Perianth glabrous, regular or irregular. Stamens 6, inserted on the perianth-tube. Ovary 1- or 3-celled . 780 12. HiBMODORACEiE. Perianth hairy with- out, regular or nearly so. Stamens 3 or 6, inserted on the base of the perianth-segments; anthers introrse. Ovary 1- or 3-celled . 789 13. Hypoxideje. Perianth hairy without, regular. Stamens 6, inserted on the perianth- segments ; anthers introrse, sagittate. Seeds strophiolate 791 14. Vellosie^. Perianth regular. Sta- mens 6 or more, inserted on the perianth- tube; anthers linear. Embryo outside the albumen 793 Cohort VI. Dioscorales. — Flowers dioecious, regular. Perianth herbaceous. Stamens 6, inserted at the base of the perianth-segments. Ovai’y 3-celled. Fruit a berry or cap- sule. Seeds with copious fleshy dense albumen, and a distinct included embryo. — Climbing herbs or undershrubs. Leaves net-veined. 15. Dioscoreje 794 DIVISION II. Ovary superior. (See also Bromeliacece and Hcemodoracece) . SUB-DIVISION I. Ovary apocarpous (reduced to 1 carpel in some Naiadece. See also some Pahnce). Cohort VII. Triurales. — Flowers unisexual. Perianth 6-lobed or -partite. Stamens 6. Carpels 1-ovuled ; style basal or lateral. Seed minute, with very dense albumen and obscure embryo. — Minute leafless slender herbs. 16. Triuride^: • 797 Cohort VIII. Potamales. — Flowers § or unisexual. Perianth of 3, 4, or 6 segments, or 0. Stamens 1— G. Albumen 0 ; embryo conspicuous. — Usually water-plants. 17. Bctoue.e. Flowers $ • Perianth 6- leaved, 3 outer herbaceous. Stamens 9-oo , bypogynous. Carpels many-ovuled, follicular when ripe 797 18. Alisyiace.e. Flowers $ or monoecious. Perianth 6 - leaved, 3 outer herbaceous. Stamens 6 or 12, bypogynous or perigynous. Carpels 1-2-ovuled, follicular when ripe . 799 19. Jtjncaginejs. Flowers $ or diclinous. Perianth 6-leaved, all herbaceous. Stamens 6, rarely 1 ; anthers extrorse. Carpels 3, 1-2-ovuled, follicular or capsular when ripe 802 20. Potame^:. Flowers $ or unisexual. Perianth of 4 herbaceous valvate leaflets or 0, on a 3-toothed cup. Stamens 1, 2 or 4. Carpels 1-6, 1-ovuled, indehiscent or 2- valved when ripe ; ovules pendulous . 804 21. ApoxoGETEiE. Flowers $ . Perianth 0, or of 2-3 caducous leaflets, inserted on a spadix with often white bracts. Stamens 6-18-20, bypogynous. Carpels 3-5, 2-4-0- ovuled, follicular when ripe; ovules ascending 805 22. Naiadece. Flowers § or unisexual, obscure. Perianth 0 or tubular or mem- branous. Stamens 1-2-4 ; anthers 1-2-4- celled. Carpels 1-4, l-oo -ovuled ; when ripe an indehiscent berry or utricle, or dehiscent; stigmas usually 2-3, filiform . . . 807 COHORTS AND ORDERS. (BY THE EDITOR.) 1019 SUB-DIVISION II. Ovary syncarpous (rarely apocarpous in some Palmce). Cohort IX. Palmales. — Flowers unisexual, in a simple or branched spadix, enclosed or not in a spathe. Perianth of distinct 2-seriate coriaceous segments, green, rarely coloured, or 0. Fruit a 1- rarely 2 -seeded drupe or berry. Seed albuminous. — Shrubs or trees, with babel late or pinnately divided, rarely simple leaves. 23. Palmje. Flowers usually diclinous on a branched spadix. Perianth of G her- baceous • 2-seriate segments. Stamens 6, rarely more or fewer, hypogynous or perigy- nous. Ovary 3- rarely 1-celled, or of 3 separate carpels; styles short, free or connate ; cells 1- rarely 2-ovuled. Fruit various, 1-3-celled. Seeds large ; embryo minute, sunk in a pit of the fleshy or horny albumen. — Trees or shrubs . . . . .811 24. Phytelephasie^:. Flowers monoe- cious or polygamo-dioecious, on a simple club-shaped spadix. Perianth-segments 2- seriate, unequal. Stamens oo, inserted at the base of the perianth. Ovary 1-celled and 1-ovuled, or 4-celled and 4-ovuled ; style 3-6-fid ; ovule basal, anatropous. Fruit a muricated syncarpous or coriaceous berry. Seed large. Albumen like ivory. — Dwarf Palm-like plants ; leaves pinnate . . 821 25. NiPACF.iE. Flowers monoecious, £ in cylindric catkins, £ capitate. Perianth $ of G 2-seriate segments, $ 0. Stamens 3, filaments connate ; anthers extrorse. Carpels 3, obliquely truncate ; stigmas sessile, ex- centric ; ovule 1, ascending. Fruit an aggre- gation of dry fibrous coriaceous drupes. Seed large, furrowed ; albumen cartilaginous . 821 Cohort X. Arales. — Flowers 2 or unisexual, an-anged in a spadix or spike, with or without a spathe, or sunk in pits of a minute scale-like frond. Perianth of distinct pieces, white or green, or of minute scales, or 0. Fruit a drupe or berry with one, few, or many small or minute albuminous seeds. — Herbs, often gigantic, rarely trees ; leaves simple or pinnatifid, very rarely pinnately divided. 2G. Pandaneje. Flowers dioecious, in ob- long or globose spadices. Perianth 0. Sta- mens numerous, crowded. Ovaries numerous, 1-celled ; stigmas sessile ; ovules 1 or 3. Fruit a head of fibrous 1 -seeded drupes. Seed small; albumen fleshy. — Trees or shrubs; leaves simple, narrow, margins and keel spinous . . .... 822 27. Typhaceje. Flowers monoecious, in simple or branched heads or catkins. Pe- rianth 0 or of slender scales or bristles. Stamens crowded ; anthers basifixed. Ovaries crowded, sessile or stalked, 1-celled; style slender ; stigma unilateral ; ovule 1, pendu- lous, anatropous. Fruit dry or drupaceous. Albumen floury or fleshy. — Herbs ; leaves narrow, linear or ligulate, quite entire . 824 28. Cyclaxthea£. Flowers diclinous, in oblong or cylindric spadices. Perianth of g multifid, of $ 0 or of 4 long-tailed seg- ments. Stamens in 4 bundles, opposite the perianth-lobes. Ovary 1-celled ; stigmas 4; ovules many, anatropous, on 4 parietal pla- centas. Fruit syncarpous, berried. Seedssmall. Albumen horny. — Large stemless orclimbing herbs ; leaves large, entire or 2-5-partite . 827 29. Freycinetie.e. Flowers polygamo- dioecious, in globose or oblong or cylindric spadices. Perianth 0. Stamens oo ; filaments isolated or grouped. Ovaries many, 1-celled; stigmas sessile ; ovules many, anatropous, on parietal placentas. Fruit syncarpous, berried. Seed minute ; albumen fleshy. — Large herbs or trees ; stem erect or climbing ; leaves narrow ; margins and keel spinous . . 830 30. Aroideas. Flowers £ or diclinous, in cylindric or oblong spadices. Perianth 0, or of 4-8 scales. Stamens few or many, filaments short or 0; anthers extrorse or opening by pores. Ovaries aggregated, 1-4- celled; style distinct orO; ovules 1 or more, basal or parietal. Berry 1- or more- seeded. Seeds minute ; albumen fleshy or floury, or 0. — Herbs, stemless or with erect or scandent stems; leaves usually large, simple or pinnatifidly divided, usually net- veined . 831 31. Lemnacexs. Flowers Perianth 0. Stamens 1-2 ; anther-cells sub-globose. Ovary 1-celled ; style terminal ; stigma funnel- shaped ; ovules 1 or more. Fruit 1-many- seeded. Seed most minute. Albumen fleshy. — Minute floating green scales . . . 839 1020 SYNOPSIS OP THE CLASSES, Cohort XI. Liliales. — Flowers $ , very rarely unisexual, spiked, racemed, panicled or solitary, rarely capitate. Perianth of 6 (very rarely 4) sub-similar pieces, or monopetalous and 6-lobed, regular (except Gilliesiece), usually all coloured and petaloid (coriaceous orsub- glumaceous in Juncece). Embryo immersed lateral cavity of the albumen). PAGE 32. Aspidistkejs. Perianth valvate, 6- 8-fid. Stamens 6-8, inserted on the perianth. Ovary 3-celled ; cells 2-ovuled; stigma sessile or stipitate, radiate, 3-6-lobed. Berry 1- celled, 1-seeded. — Stemless herbs ; leaves narrow, parallel-nerved .... 841 33. Ophtopogonejs. Perianth rotate, 6- fid or -partite. Stamens 6. Ovary adnate to the base of the perianth, 3-celled; cells 2- ovuled ; style stout, 3-gonous. Fruit coriaceous, bursting before maturity, and ex- posing the unripe seeds ; testa herbaceous. — Stemless herbs; leaves narrow, parallel-nerved 841 34. Liliace.®. Stamens 6, hypogynous or perigynous ; anthers usually introrse. Ovary 3-celled ; cells usually oo-ovuled ; style entire. Fruit capsular. Seed glabrous, with a membranous or crustaceous testa. Albumen fleshy. — Stemless herbs, or shrubs with a simple or branched trunk ; root fascicled or bulbous ; leaves various . . 843 35. EriospermeaE. Perianth 6-partite. Stamens inserted at the base of the perianth ; anthers sagittate-didymous. Ovary 3-celled, few-ovuled ; style filiform. Capsule loculi- cidal. Seeds villous. — Stemless herbs with bulbous roots ; leaves rounded, thick . . 848 36. Conanxhere^:. Perianth adnate by a broad base to the ovary; segments 6, spirally twisted in aestivation, and detaching above the base. Stamens 6, inserted on the perianth ; anthers basifixed, conniving in a cone. Ovary 3-celled, many-ovuled ; style simple. Capsule loculicidal. Seeds globose. — Stemless herbs with bulbous roofs; leaves narrow, parallel-nerved .... 849 37. Gilliesiejs. Perianth green, fleshy, of 2 bilabiate leaflets, or regular urceolate and 6-toothed. Stamens 6, adnate to the perianth-base, 3 posterior sterile, or all minute and inserted on the perianth-throat. Ovary 3- celled, many-ovuled. Capsule loculicidal. Testa black, crustaceous. — Stemless herbs with bulbous roots; leaves linear, parallel- nerved ....... 849 38. Melanthacexe. Perianth petaloid or green, 6-partite. Stamens 6, inserted on the in copious albumen (not external to, nor in a PAGE throat or base of the perianth ; anthers usually extrorse. Ovary superior or semi- inferior, 3-celled ; cells many-ovuled ; styles 3, free or connate. Fruit of 3 follicles, rarely capsular or indehiscent. Testa various. — Herbs, stemless, or with a climbing slender stem ; roots bulbous tuberous or fibrous ; leaves parallel-nerved .... 849 39. Smilace.e. Perianth green or coloured, 4-6-lobed or of 6-oo segments. Stamens 6, hypogynous or perigynous. Ovary superior, 1-4-celled ; ovules few or many ; style entire. Fruit a berry. Seeds few, globose ; testa thin. — Herbs or shrubs, erect or climbing; roots and leaves various .... 854 40. Astelie.e. Flowers polygamous. Perianth marcescent, silky, green or coloured. Stamens 6, inserted on the perianth-segments; anthers introrse. Ovary 1- or 3-celled ; stigma 3-lobed, or stigmas 3 ; ovules many. Fruit baccate or fleshy and 3-valved. Seeds with a crustaceous shining testa. — Tufted, stemless, usually silky and scaly silvery herbs ; leaves narrow, parallel-nerved . 858 41. Asparagexe. Pedicels jointed. Pe- rianth coloured, 6-fid or -partite. Stamens 6, perigynous or hypogynous. Ovary 3- celled ; style simple. Fruit a berry. Seeds with a shining crustaceous testa. — Herbs, shrubs, or rarely trees of various habit, never tuberous or bulbous-rooted . . 859 42. Roxburghiacejs. Perianth of 4 leaflets. Stamens 4, hypogynous; anthers adnate, introrse. Ovary 1-celled ; ovules many, parietal ; stigma sessile, penicillate. Fruit 2-valved, with 2 clusters of basal seeds attached by long cords, and with a tuft of hairs at their base. — Twining herhs; leaves broad, with parallel nerves and cross venules 861 43. Xerotide.e, Perianth of 6 leaflets. Stamens 8, hypogynous or perigynous ; anthers oblong, ovoid or peltate. Ovary 1- or 3-celled ; ovules basal ; styles 3, free or connate. Capsule loculicidally 3-valved, or indehiscent. — Stemless herbs, or shrubs, or short trees with a stout simple trunk ; leaves narrow, grass-like . . . 861 COHOETS AND OEDEES. (BY THE EDITOE.) 1021 44. Jence.e. Perianth of 6 coriaceous or sub-scarious equal leaflets. Stamens 6 or 3, in the base of the perianth-segments ; anthers basifixed. Ovary 1-3-celled; ovules few basal, or many axile. Capsule loculicidally 3-valved. — Herbs, stemless or with a slender, rarely stout stem ; leaves narrow, nerves striate 863 Cohort XII. Pontederales. — Flowers , spiked, panicled or capitate. Perianth of 2 segments or of 6 2-seriate segments, all petaloid, or 3 outer herbaceous or coriaceous, and 3 inner petaloid. Style single ; stigma sub-entire. Embryo immersed in copious albumen (not external to or in a lateral cavity of the albumen). — Marsh or water herbs. 45. Rapateejs. Perianth regular; outer segments short, coriaceous or scarious ; inner long-clawed, petaloid. Stamens 6, in pairs opposite the inner perianth-segments; anthers basifixed, opening at the apex. Ovary 3- celled. — Leaves linear, equitant . . . 865 46. Pontederiace^e. Perianth irregular; segments 6, all petaloid. Stamens inserted on the perianth, either 6, or 3 and then opposite the inner segments. Ovary 3-celled, 2 cells often empty. Fruit capsular. Albu- men floury. — Leaves broad . . . 865 47. PniLYDREiE. Perianth of 2 marces- cent petaloid segments. Stamen 1, with 2 petaloid staminodes. Ovary 3-celled ; style simple ; ovules numerous. Capsule 3-valved. — Leaves narrow, equitant . . . 867 Cohort XIII. Commelynales. — Flowers 5 > spiked, panicled, solitary or capitate. Perianth regular or irregular, of 6 segments in 2 series, 3 outer herbaceous, 3 inner very different, petaloid, coloured. Style usually 3-fid. Embryo outside the albumen, or in a distinct cavity in its side. 48. Commelyxeje. Perianth regular or irregular ; segments 6, 3 outer herbaceous. Stamens 6, hypogynous, some only or all fertile. Ovary 3-celled. Capsule loculicidal. Albumen fleshy. — Herbs with narrow soft parallel-nerved leaves .... 868 49. Mayaceje. Perianth regular ; seg- ments 6, 3 outer herbaceous, 3 inner petaloid. Stamens 3, inserted at the base of the outer perianth-segments ; anthers 1-celled. Ovary 1-celled ; placentas 3, parietal. Capsule loculicidally 3-celled. — Moss-like creeping herbs, with crowded line.ar flaccid leaves . 870 50. Xyride^. Perianth regular; segments 6, 3 outer scarious, 3 inner petaloid. Stamens and staminodes 3 each ; anthers extrorse. Ovary 1-celled ; style 3-fid ; ovules parietal. Capsule 3-valved. — Erect rigid stemless herbs, with filiform or ensiform leaves . 870 Cohort XIV. Restiales. — Flowers $ or unisexual, regular or irregular. Perianth of 4^6 glumaceous or scarious or membranous segments in 1—2 series, or reduced to scales, or 0. Stamens 1-3, free or united in a cup. Ovary usually 3-celled ; ovules solitary, pendu- lous in each cell, orthotropous. Fruit capsular, rigid or membranous. Embryo outside the base of the albumen. 51. Flagellarieje. Flowers 5 • Peri- anth of 6 sub-equal segments in 2 series. Stamens 6, hypogynous, free ; anthers 2- celled, introrse. Styles3, papillose through- out. Berry 1-2-seeded.— Sedge-like herbs . 871 52. Eriocaulone^:. Flowers unisexual. Perianth double ; outer of 2-3 segments ; inner sub-tubular, 2-3-fid. Stamens 4 or 6, the alternate often imperfect ; anthers dorsi- fixed, 2-celled. Ovary 1-3-celled ; styles 1-3, short, slender. Capsule loculicidal. — Stemless herbs, rarely suffruticose ; leaves narrow, fleshy or spongy, solid or fistular . 871 53. Bestiace.®. Flowers unisexual. Pe- rianth of 1-6 1-2-seriate glumes. Stamens 1-3; anthers usually 1-celled, introrse. Ovary 1-3-celled; styles 1-3, slender. Fruit a capsule, utricle or nut. — Herbs or undershrubs, tufted or with a creeping rhizome; leaves narrow, sheath usually split . . . 873 1022 SYNOPSIS OF THE CLASSES, Cohort XV. Glumales. — Flowers m tlio axils of scales, wlncli are arranged in spikelets. Perianth 0, or of minute scales or hairs or bristles. Stamens 1—0, rarely more. 0 vary 1- celled, 1-ovuled. Fruit a cai’yopsis. Albumen fleshy or floury ; embryo immersed or not. — Grasses or grass-like herbs. PAGE 54. CYi’ERACEiE. Perianth 0 or of bristles, rarely of scales, or of a sheathing bract (Carr. v). Anthers basifixed. Fruit compressed or 3-gonous. Embryo at the base of the albumen. — Stem usually solid and 3-gonous ; leaf-sheaths entire . . .875 -y PAGE y 55. Gramine.*. Perianth 0, or of 2 (rarely 3 or 6) minute oblique scales. Anthers versatile. Fruit grooved on one side. Em- bryo outside the albumen on one side of its base. — Stem usually fistular, terete ; leaf- sheaths split to the base .... 880 SUB -KING DOM II. CEYPTOGAMOUS, ACOTYLEDONOUS, ok FLOWEELESS PLANTS. Plants destitute of stamens and ovaries. Fertilization effected by the action of antherozoids on the nucleus of an archegonium, or by the union of the contents of two special cells. Propagation by means of homogeneous spores, consisting of a single cell. CLASS III. ACROGENS. Axis of growth distinct, growing from the apex, with usually no provision for sub- sequent increase in diameter, and with frequently distinct foliage. Reproduction by the action of antherozoids on archegonia. Cohort I. Filicales. — Plants with both cellular and vascular tissue. Antheridia, or archegonia, or both, formed on a protliallus that is developed from the spore on its germination. * Spores of one kind ; antheridia and archegonia both produced upon a prothallus. 1. Filices. Fronds circinate in vernation, bearing sporangia on their under surface or margins, or on separate fronds. Prothallus bisexual ....... 893 2. OrniOGLOSSEiE. Fronds straight in vernation. Sporangia globose, coriaceous, 2- valved, arranged in a peduncled or sessile spike. Prothallus bisexual . . . 902 3. Equisetace^e. Cylindric jointed leafless plants, with hollow internodes, ter- minated by a toothed sheath. Fructification a cone of peltate scales, which bear on their under surface several dehiscent sporangia. Spores furnished with 2 filaments, that are at first coiled round them. Prothallus uni- sexual ....•••• 903 *# Spores of tivo kinds, one containing antherozoids, the other developing a prothallus with archegonia. 4. Marsileaceje. Fronds slender from a creeping rhizome, simple and filiform, or with 4 terminal wedge-shaped leaflets, cir- cinate in vernation. Sporangia and antheridia together contained in coriaceous globose capsules, produced on the rhizome. Pro- thallus producing a single archegonium . 907 5. Salvinie.r. Fronds floating ; margins recurved in vernation. Sporangia and antheridia contained in separate capsules produced at the base of the fronds. Prothallus producing a single archegonium . . 910 6. Lycopodia c e .e . Stems simple or branched, erect, prostrate, pendulous, or some- times with a creeping rhizome, covered with small uniform or biform leaves, rarely leafless. COHORTS AND ORDERS. (BY THE EDITOR.) 1023 Sporangia solitary, placed at the base of the leaves, or in the scales of terminal cones, 2-3- valved, containing' either minute quaternary microspores full of antherozoids, or large sub-globose macrospores with a tricrural mark on one hemisphere. Macrospores developing a prothallus in germination, on the surface of which archegonia are produced . . . 911 Cohort II. Muscales. — Plants composec ridia, or both, formed on the stem or branches on its germination. 8. CHARACEiE. Aquatic branched plants, with wliorled branches, consisting of a series of long superimposed fascicles (internodes) of inarticulate tubes. Antheridia consisting of spherical vescicles containing articulate tubes, each joint (cell) of which contains an antherozoid. Archegonia consisting of a single spore, covered with spirally arranged tubes, and fertilized in situ .... 917 9. Mtjsci. Stems leafy ; leaves alternate or distichous. Antheridia consisting of delicate open sacs full of cells containing an antherozoid. Archegonia consisting of a flask-shaped body enclosing a vesicle which developes, after fertilization, a stalked urn- shaped sporangium, full of spores . . 921 10. SrnAGNA. Moss-like plants, differing 7. IsoiilEiE. Submerged or terrestrial plants, with a tumid caudex clothed with the sheathing bases of elongate fronds. Spo- rangia enclosed in the bases of the fronds ; those of the outer froud bearing macrospores, of the inner microspores. Germination, &c., as in Lycopodiacece . . . . .915 of cellular tissue only. Archegonia or anthe- f a new plant that is developed from the spore from Mosses in their regular fascicled branches arising from the stem by the sides of the leaves, by some peculiarities in the structure of the stem and leaves, and stalk of the sporangium, and by having dimorphic spores 929 11. Hepatic.®. Stems leafy, with alternate or distichous leaves, or frondose. Antheridia and archegonia as in Musci, but these are in some tribes buried in the substance of the frond, in others borne on the under surface of a stalked disk, in others axillary or terminal. Archegonia after fertilization giving rise to a sporangium that usually bursts into 4 spreading horizontal valves, but is sometimes 1-2-valved, or consists of a simple sac sunk in the frond. Spores usually mixed with spiral filaments (elaters) .... 933 CLASS IV. THALLOGENS. zontally. not developing a prothallus in germination. 12. Lichenes. Terrestrial plants. Thallus coriaceous and irregularly lobed, or erect, or a mere crust, various in colour and consistence. Fructification of two sorts : 1. Apothecia, which are superficial, marginal, or sunk in the frond, and contain, or consist of vertical densely packed tubes or sacs (sporangia) containing 2-8 spores ; 2. Spermogoniu, which are spherical bodies sunk in the substance of the frond, whose inner surface is lined with filaments (sterigmata) which support slender transparent corpuscles, called spermatia (sup- posed to represent antherozoids) . . . 940 13. Fungi. Usually terrestrial polymor- phous plants, sometimes subterranean, often parasitic, destitute of chlorophyll or starch, of most varied form, colour, and con- place chiefly peripherically and hori- Reproductive organs various. Spores sistence, sometimes reduced to a few fila- ments or cells. Vegetative organs con- sisting of a mycelium (or tissue of slender simple threads). Spores most minute, sometimes superficial, at others borne upon projections called basidia, at others enclosed in cells or sacs 949 14. ALGiE. Usually highly coloured plants, aquatic or natives of damp rocks, walls, &c., sometimes frondose, at others reduced to a few cells or a single cell. Fructification monoecious or dioecious, some- times of special cells of two sexes, sometimes of simple mobile spores, sometimes of anther- idia and sporangia, which are free or enclosed in capsules. ...... 965 Axis of growth indeterminate, growth taking Plants wrholly composed of cellular tissue. ■ - . ' 1 . . f INDEX OF TECHNICAL TERMS ABO AMM ASC CAU PAGE PAGE PAGE PAGE Abortion . . . 88 Ammonia . . 142 Ascending sap . . 146 Bulbs . 13 Absorption . 145 Amphigens . 165 — seed . 106 — scaly . . 14 — of vegetables . 149 Amphitropous embryo — stem . 17 — solid . 14 Acaulis . 10 107, 137, 138 Asper . 16 Bullate . 25 Accessory organs 96, 138 Amplexicaul 19, 21 Assimilation . 149 Accrescent calyx . 49 Anastomosing . . 21 Axile embryo . 113 Accumbent cotyledons 1 1 1 Anatomy . 1, 115 Axillary inflorescence . 33 Cabbages . . 160 Acerose . 23 — of Acotyledons . 140 — stipules . 21 Caducous . 19, 49 Acetic acid . 143 — vegetable . 115 Axis, vegetable . 2, 33 Calcariform . 52 Achene , 99 Anatropous 136, 138 — direction of . . 149 Calycifloral . 57 Achlamydeous . . 45 Androecium 4, 43, 56 — of embryo . 105 Calyciform . 49 Acid, acetic . 143 Angiospcr mia . 163 Axospermous . 168 Calyeine •. . 45 — citric . . 143 Angiosperms 166, 167 Awl-shaped 59, 71 Calyeoid . . 45 — gallic . . 143 Angiospores . 167 Calyeules . . 49 — malic . . 143 Angular 22, 108 Calyptra . 921, 926 — pectic . . 143 Anisandrous . 168 Bark 124, 126 Calyx . 3, 42, 46, 49 — tartaric . 143 Anisogynous 69, 166 Barometer, flor d . 150 — tube . 75 Acini . 99 Anisostemonous 58, 166 Basidia . 950 Cambium . 124, 125, 147 Acotyledons 8,164, 165,167 Annual . 10 Basi fixed . . 62 Campanulate 47, 55 — anatomy of . . 140 Annular cells . 116 Basifugal . . 131 Campylotropous 137, 138 — leaves of . 141 — vessels . 117, 124 Basilar style . 70 Canaliculatus . 19 — reproductive organs Annulus . 921, 926 Basipetal . . 131 Canals, intercellular . 116 of . 141 Anomalous corolla 53, 56 Beaded vessels . . 118 Candolle, De, system — root of . 141 Anomalies 42, 43 Bell-shaped . 47 of . 161, 164 — stem of . 140 Anther . 4, 56, 60, 132 Berry, simple 99, 103 Capillary . 24, 59 Acrogens , . 165 Antheridia 141, 893, 899 Bicornis . . 60 Capitulum . 36 Aculeate . . 108 Antherozoids 893, 899 Bicuspidate . 59 — flosculose . 54 Acu/ei . 17 Antitropous embryo . 107 Biennial . . 10 — rayed . . 56 Acuminate . 24 136, 138 Bifid . . 46 — semi-flosculose . 56 Acute 24, 61 Apetalous . 45, 167 Bilabiate . 52, 55 Capsule 99, 100 Adnate anthers . . 60 Aperispermous . . 166 Bilamellate . 71 Carbonate of lime . 145 Adventitious roots 7, 129 Aperta . 87 Bilocular . . 60 Carbonic acid . . 142 Aerial roots . 10 Apicifixed . . 62 Bipartite . . 70 Carina . 53 iEsti ration . 86 Apiculate . . 28 Bipinnate . . 31 Carnosum . . 113 Affinities . . 163 Apocarpous 91, 97, 98 Bivalved . . 97 Carpels . 4 64, 134 Aggregate fruits . 104 Apophysis . 921, 926 Bladdery . . 47 — in a spiral . 69 Alee . . 53 Apothecia . . 940 Blade 3, 915 — parietal . 69 Albumin 6, 112, 135, Appendages . 47 Bony fruits , 95 — theory of . 68 143, 144 Appendiculate anthers 61 Border . 915 Carpidia . . 64 Albuminous . 166 — corolla . . 53 Bracts 33, 35 Caruncules . 110 Aleurone , . 119, 120 — filament . 59 Branch-bud . 7 Caryophyllaceous . 53 Alkalies, vegetable . 143 Arable soil . 144 Branches . 2, 17 Caryopsis . . 99 Alternate aestivation . 87 Arachnoid . 25 Bristles 37, 96 Casein 143, 144 — branches . 17 Archegonia 893, 899 Brongniart, classifica- Catkin . 36 — leaves . . 2 22, 78 Aril . . 109 tion of . . 165 Caudex . 893 Alumina . . 145 Arillode . 109 Brushes, collecting . 73 Caudicles . . 63 Alveolate . , 37, 108 Arrest . 93 Buds . 2, 132 Caulicle 5, 6, 105 Amentum . . 36 / Ascending ovule . 106 | Bulbils . 7 Cauline . 21 PAGE 10, 16 . 115 . 133 . 68 . 165 5, 124 12, 144 . 107 . 107 15, 108 . 145 . 139 . 18 V6 . 164 . 167 . 44 !0, 140 . 90 >0, 143 . 26 . 143 15, 147 . 100 21, 31 . 31 . 143 . 21 . 160 . 98 . 160 . 47 3, 51 . 145 . 37 . 951 . 150 . 15 47, 71 , 906 . 14 . 108 . 25 , 102 . 87 88, 89 . 58 !9, 881 a- 90, 91 . 73 . 73 . 2 :i, 926 . 67 . 37 . 71 . 104 . 28 . 65 , 34 . 36 16, 19 1, 950 0, 134 INDEX OF TECHNICAL TERMS CON DEC FAS PAGE PAGE PAGE Cones 36, 104 Decurrent leaves . 21 Dorsifixed . . 62 • — pine . 104 Decussate . . 78 Dotted fibre . 117 — spirals of . 83 Deduplication . . 90 — vessels . 118, 124 Confluent . . 22 — collateral 90, 91 Double calyx . 46 Conical stigma . . 71 — parallel . 90 — corolla . . 51 — symmetry . 88 Definite corymb . 39 Doubling . . 88 Conidia . 952 — inflorescence . . 38 Downy . 25 Connate . 22 — raceme . . 38 Drupe . 99 Connective 56, 61, 132, 133 — rootstock . 11 — compound . 104 Connivent . . 48 — spike . . 40 Dry fruits . . 95 Contorted aestivation . 86 — stem . 11 Duramen . . 126 Conus . 104 — umbel . . 40 Convolute aestivation . 87 Dehiscence . 97 Eburneum . 113 Corculum . . 105 — apical . . 62 Ectobasidia . 954 Cordate . 24 — irregular . 98 Elaborated sap . 147 Coriaceous . 95 — loculicidal . 97 Elaters . 906 Cork i . 125 — longitudinal . . 62 Elementary organs 1,115 Corky fruit . 95 — of anther . 62 Ellipsoid pollen . 62 Corolla . 3, 42, 51, 56 — rupt ill's . . 98 Elliptic anthers . 61 Corollifloral . 57 — septicidal . 97 — leaves . . 22 Corona 52, 917 — septifragal . . 97 Emarginate 21, 24 Cortical pith . 124 — transverse 62, 98 Embryo 5, 105, 110 Cortina . 950 — valvate . . 62 Embryonic sac . 156 Corymb . 34, 38, 39 — vertical . 62 — vesicle . 136, 156 Costa . 3 Dehiscent fruits . 97 Enantioblastece . 167 Costate . 108 Deltoid leaves . . 22 Endobasidia . 954 Cotyledonous plants . 8 Dentate calyx . . 47 Endocarp . 5, 95 Cotyledons 5, 6, 105, — leaves . . 26 Endogens . . 165 111, 165 Depressed petiole . 19 Endopleura 5, 105 — accumbent . . Ill — seed . 106 Endosmose . 145 — epigeal . . 114 Descending sap . . 147 Endospores . 944 — hypogeal . 114 Determinatus, caulis . 1 1 Eudostome . 135 — incumbent . Ill Development . 6 Ensiform . . 22 Creeping , . 17 — unequal 88, 89 Entire calyx . 48 Crenate . 27 Dextrine . . 142 — leaves . . 26 Crisped . 25 Diadelphous stamens . 59 — ligule . . 21 Crops, rotation of . 145 Dialypetalous 51, 166 — petal . 52 Crown . 96 Dichlamydeous flowers 45 Epicarp 4, 95 Cruciate anthers . 60 Dichotomous . 18 Epidermis 3, 121 Cruciform . . 52 — cyme . 39 Epigeal . 114 Cryptogams 8, 165, 167 — keys . . 163 Epigynous . 57 Crystals in cells . 120 Diclinous flowers . 46 Epiphyllous . 41 Cuculliforai , 52 Dicotyledons 111,123, Epiphragm 925, 926 Culm . 880 164, 166, 167 Epispores . . 944 Cup-shaped . 47 — root of . . 129 Epithallus . 941 Curved ovule . 138 — stem of . 123, 147 Erect calyx . 48 Cusconine . . 143 Didymous anthers . 60 — seed 106, 138 Cushion . 130 Didynamous 58, 68 — stem . 17 Cut leaves . 26 Digitate leaves . . 29 Essences . . 143 Cuticle . 122 Digynia . 163 Evaporation . 149 Cuttings . . 7 Dimorphism . 153 Exalbuminous . 166 Cycle of leaves . . 79 Dioecious flowers . 46 — embryo . 112 Cyclosis . 147 Diplostemonous . . 58 Excentric . . 107 Cyclospermous . . 166 Direction of axis . 149 Excretion . . 149 Cylindric . 16, 22, 108 Discoid stigma . . 71 Exogens . 165 Cyme 38, 40 Disjunctive symmetry 88 Exosmose . . 145 Cymose raceme . . 38 Disk . 74, 76 Exostome . . 135 Cystoliths . . 121 Dissemination of seed 158 Extrorse . . 62 Cytoblast . 119, 136 Dissepiments 66, 67 Exuviae . 96 — spurious . 67 Eyes . . 15 Distichous 22, 79 Dk Candolle’s ar- Divisions of leaves . 26 rangement . 165 Dorsal face of seed . 106 Families . . 160 Deciduous calyx . 49 — radicle . . Ill Farinaceous . 113 Decompound leaves . 31 — suture . . 96 Fascicle . 38 PAGE . 40 , 22 . 47 119 45 140 , 151 155 899 155 , 116 117 117 9 124 9 144 10 1 124 132 59 24 15 52 108 113 93 150 150 54 3 54 54 >, 42 149 18 48 45 21 98 142 60 71 108 51 157 65 68 58 62 71 140 94 94 10 49 16 123 134 108 45 143 INDEX OF TECHNICAL TERMS 1027 GAM HET LIG PAGE PAGE 1 PAGE Gamopetalous . 51, 166 Ileterotropal 107 Internodes . 2 Gamosepalous . . 46 — embryo 107,137,138 Interruptedly-pinnate 31 Gemma . 2 Hexagynia 163 Introrse . 62 Gemmula . 5, 105 Hilum . 5, 105, 108 Involucel . . 35 Genera . 160 — ventral . 106 Involucre . 35, 37, 893 Generating spirals . 82 Hirsute leaves . 25 — calyciform . 49 Generic names . . 160 — stem 17 Irregular calyx . . 47 Genus . 160 Hispid leaves 25 — corolla . . 51 Germination 113, 158 — stem 17 — dehiscence . 98 Gibbous . 55 Histology, vegetable . 115 — perianth . 45 Gills . 951 Hoary 22 Irritability of stamens 152 Glabrous leaves . 25 Holosericea 25 Isandrous . . 168 — seed . 108 Homoblastea 167 Isogynous 69, 166 — stem . 16 Homogeneous cells 116 Isostemonous 58, 166 Glandes septales . 77 Homomorphic . 154 Ivory-like albumen . 113 Glands . 4, 138, 139 Homotropous 107, 137, 138 — lenticular . 140 Hood 45 — nectariferous 4 Hooded petals . 52 Jointed hairs . . 139 — vesicular . 140 Horizontal-axile seed 138 Juice, reservoirs of . 140 Glandular hairs . . 139 — ovule . 106 Jussieu, system of 161, 164 Glaucous . , 22 — -parietal seed 138 Globose anthers . 61 — seed 106 — ovary . . 69 Horned anthers 60 Keel . 53 Globular seed . 108 Horny albumen . 113 Keys, dichotomous . 163 — stigma . . 71 Humus . . 142, 144 Globule . 920 Hybrids 151 Glomerate cyme . 41 Hymenium 951 Labellum . . 45 Glomerule . . 38 Hypanthodium . 37 Labiate . 52 Glossology . . 1, 9 Hypertrophy 75 Lacinia . 27 Glucose . 143 Hypocrateriform 54 — apiculate . 28 Glumaceous . 167 Hypogeal . 114 Laeiniate leaves . 31 Glumes . 881 Hypogynous . 57, 166 — ligule . . 21 Glumelles . . 881 Hypothallus 941 — stigma . . 71 Gluten . 143 Hypothecium 944 Lacuna . 116 Gonidia . 941 Lave . . 108 Goniotheca . 913 Lavia . 25 Gonospheria . 951 Imbricate aestivation 86 La vis , . 16 Gourd . 104 — leaves . 22 Lamina 3, 51 Grape sugar . 143 Imparipinnate . 31 Lavatus caulia . . 17 Gums . 144 Inaquatis . 47 — folia . 25 Gymnospermia . . 163 Incana 23 Lanceolate . 22 Gymnosperms 166, 167 Incised 27 Lateral nerves . . 3 Gymnospores . 167 Incomplete flower 45 — radicle . . Ill Gynandrous 59, 167 — septa 66 — stipules . 21 Gynobasic . . 70 Incumbent 111 — style . 70 Gynoecium . 64 Indefiniteinflorescenca 34 — sutures . 62 Gynophore 64, 70 — rootstock 11 Latex . 118 Indefinite stamens 58 Laticiferous vessels 118, 124 — stem 11 Layers . . 7 Hairs . 26 37, 138 Indehiscent 97 Leaflets . 28 — collecting . 73 Indeterminatus . 11 Leaves . 2, 18, 130 Hairy seed . 108 Induplieacive . . 86 — cycle of . 79 Half-adherent . . 66 Indusium . 893 — divisions of . . 26 — inferior . . 66 Induvia 96 — instinct of . 149 Hastate . 25 Inferior ovary . 66, 134 — movements of . 149 Haustoria . . 16 — radicle . 106 — of Acotvledons . 141 Head 34, 36 Inflorescence 33 — reproduction by . 7 Heart-wood . 126 Infundibrliform 54 — spirals of . 71 Hemispheric stigma . 71 Insects, fertilization by Lecus . 15 — symmetry . 88 155 Legume . 99 Herbaceous . 10 Insertion of stamens . 57 Lenticels . . 138, 140 Hermaphrodite . . 45 Instincts of leaves 149 Lenticular glands . 140 Hesperidium . 103 Integer 48 — seed . 108 Heteromorphic . . 154 Integrum . 26 Liber . 126 Heterophyllous , . 22 Intercellular canals . 116 Lignine . 119 3 u 2 1028 INDEX OF TECHNICAL TERMS, LIG PAGE Lignosus caulis . .10 Ligule . 21, 915, 881 Ligulate . . .55 Limb . . 3, 51 Linear . . .22 Linnaeus, system of 161, 162 Lip . . . .45 Lobed ovary . .69 — stigma . . .71 Lobes . . .27 Loculicidal . . 97 — capsule . . 99 — dehiscence . . 97 Loculi spurii . . 68 Lomentum . . .99 Lomentaceous . .101 Longitudinal dehis- cence of anther 62 — symmetry . . 88 Lupuline . . .140 Lyrate . . .28 Mace . . .110 Macro-sporangia . 909 Macrospores . .914 Maculate . . .23 Magnol . . .163 Male flower . . 45 Malic acid . . 143 Malleoli ... 7 Marcescent . . 49 Margined . . .108 Mdrgo obsoletus . . 48 Masses pollinis . . 63 Maturation . 95, 158 Median nerve . . 3 Medullary . . .124 Melonida . . . 104 Membranous bracts . 33 — fruits . . .95 — stipules . .21 Merithallus . . 2 Mesocarp . . 5, 95 Method . . .163 Micropyle 5, 105, 108, 135 Micro-sporangia . 909 Microspores . .913 Midrib ... 3 Mixed inflorescence . 41 — leaves . . .131 Monadelphia . .163 Monadelphous . .59 Monandrous . . 58 Moniliform . .118 Monocarpellary . . 64 Monochlamydeous . 45 Monocotyledons 111, 123, 164, 165, 167 Monocotyledons, stems of . . . 127, 147 Monocotyledonous em- bryo . . .Ill Monoecious . . 46 MON PAGE Monogynia 163 Monopetalous . 51 , 53 Monosepalous . 46 Monospermous . 95 Monstrosity 42 Morphine . 143, 144 Mother-cells . 133, 893 Mould . . 142, 144 Movements of flowers 149 — leaves . . . 149 — sap 145 Mucilaginous albumen 113 Multifid calyx . 46 Multiplication . 88, 89 Muriform tissue 126 Mycelium . . 945, 950 Naked claw 51 — corolla-throat 53 — receptacle 37 Names, generic . 160 — specific 160 Narcotine . 143 Nature of stamens 151 Neck 2 Nectaries . . 4, 74, 77 Nectariferous claws . 51 — gland . 4 — petals . 51 Needle-shaped leaves 22 Nerves . 3, 21, 131 Neuter flowers . 45 Nodes 2 Nodose roots 10 — stem 16 Nomenclature 1 Nucleus 119 Nuculanium 104 Nucule 103 Nudus 45 Number of stamens . 58 Nutrition of vegetables 145 OnLONG anthers 61 — leaves . 22 — seed 108 Obovate 22 Obtuse 24 Ochrea 21 Oils . . . . 143 Oleaginous 113 Oligospermous . 95 Oligostemonous . 166 One-celled ovary 66 One-ovuled ovary 69 Oogonia 951 Oophoridia 909 Oospores . 951 Open aestivation 87 Operculum . 921, 926 Opposite branches 17 — leaves . . 2, 22, 78 Orbiculate 22 Orders 160 ORG PAGE Organography . .1,9 Organs, accessory 96, 138 — arrangement of .77 — contents of . .119 — elementary . 1, 115 — fundamental . .123 — union of . .119 Orthotropous 136, 138 Ovary . 4, 65, 66, 105 — inferior . .134 Ovate . . .22 Ovoid anthers . . 61 — ovary . . .69 — seed . . .108 Ovule 4, 65, 106, 135 Palate . . .55 Palea . . 48, 881 Paleate receptacle . 37 Palmate . . 21, 27 Palmatipartite . . 27 Palraatisect . . 27 Panicle . . .34 Papilionaceous aestiva- tion . . .87 — corolla . . .53 Pappus . . 48, 96 Parallel deduplication 90 — leaves . . . 131 — nerves . . .21 Paraphyses . 925, 931 Parasites ... 9 Parenchyma . 1, 115 Parietal carpels . . 69 — - placenta . . 66 — suture . . .96 Paripinnate . .31 Partial involucre . 35 — umbel . . .35 Partite calyx . . 46 Patent calyx . . 48 Patulus, caulis . .17 Pectic acid . .143 Pedate leaves . . 28 Pedicel 3, 33, 926, 950 Peduncle . . 3, 33 Peloria . . .89 Peltate hairs . .139 — leaves . . .25 — seed . . .106 Pendulous ovule . 106 — seed . . .138 Pendent seed . . 106 Penicillate . . .71 Penninerved . .21 Pentagonal . .16 Pentagynia . .163 Pentandria . .163 Pcpo . . . .104 Perennial . . .10 Perennis, caulis . .10 Perfoliate leaves . 22 Perianth . . .45 Pericarp . . . .95 POT. TAG II Perichaetiunr . 925 Periclinium . 37 Perigamium . 925 Perigonium 921, 925 Perigynium 921, 925 Perigynous 57, 166, 167 Peripheric . 113 Perispermous . 166 Perispermum 112, 135 Perispores . . 975 Peristome . . 921 Persistent calyx . 49 — corolla . . 55 — stipules . 19 Perspiration of plants 149 Petaloid calyx . . 48 — perianth . 45 Petals . 3, 51, 132 Petiolate . 3, 18 Petiole 3, 18 — common . 29 — depressed . 19 - — winged . . 19 Petiolule . . 29 Phacoeyst . . 119 Phsenogamous plants . 8 Phanerogams . 165 Phyllode . . 19 Phyllopode . 915 Phyllotaxy . 78 Physiology, Vegetable 1, 142 Phytography 1 Pileus . , . 950, 951 Pili collectors . . 73 Pilose leaves . 25 — ligule . . 21 — stem . 16 Pine-cone . . 104 Pinnate leaves . . 29 Pinnatifid . . 27 Pinnatipartite . . 27 Pinnatisect . 27 Pistil . . 4, 43, 64 Pith . . 124 Pits . ... . 51 Pitted receptacle . 37 Placentae 5, 65,68, 105, 134 Placentiferous valves 97 Plants, classification of 160 — dimorphic . 153 Plantula . 5, 105 Pleurospermece 167, 168 Plumose pappus . 48 — stigma . . 71 Plumule . 5, 105 Plurilocular . 99 Pluri-ovulatum . . 69 Pollen . 4, 57, 62, 132 — tube . 156 Polyadelphous . . 59 Polyandria . 163 Polyandrous . 58 Polygamous . 46 Polygynia, . . 163 INDEX OF TECHNICAL TERMS. 1029 POL PAGE Polygynous . 69 Polyhedral pollen . 62 Polypetalous . 51 Polysepalous . 46 Polysperma . 95 Polystemonous . . 166 Pome . 104 Position of embrj o .105 — seed . 105 Pouch . 915 Prcefloratio . 86 Prickles 17, 138 Primine . 135 Primitive spirals . 80 Prismatic vessels . 118 Processes . . 951 Procumbent . 17 Proembryo . 899 Propagulum . 15 Proportions of stamens 58 Props . 16 Prostrate stem . . 17 Protein 120, 143 Prothallus . 893 Pseudopodium . . 932 Pubescent leaves . 25 — stem . 17 Pulvinus . . 18 Punctate cells . . 116 — fibre . . . 117 — seed . 108 — vessels 117, 118 Putamm . . 95 Pycnidia . . 945 Pyxidium . . 100 Qva DRANG V LARIS, cau- Its . . 16 Quincunx . . 79 Quincunxial aestiva- tion . 86 Quinine 143, 144 Quinquangularis, cau- lis . . 16 Pace . . 161 Raceme . 34 Rachis 88, 898 Radical leaves . 10, 21 Radicle .. 5. 6, 105, 106 Radix . 1, 9 Rain . . 147 Ramus . 2 Raphe 5, 105, 108, 136 Raphides . . 121 Ray . . 163 Rayed capitulum . 56 — cells . 116 — head . 56 — symmetry . 88 — vessels . . 124 Receptacle 3 33, 950 — hypertrophy of . 75 EEC PAGE Receptacle of Rose . 75 — of Strawberry . 75 Receptacular tube 66, 75 Recta . 87 Reduplicative aestiva- tion . 86 Reflexed calyx . . 48 Regime . 36 Regular calyx . . 47 — corolla . . 51 Relative value of eha- racters . . 164 Reniform leaves . 24 — seed . 108 Repens, caulis . . 17 Reproduction . 151 — by leaves . 7 Reproductive organs of Acotyledons . . 141 Reservoirs of proper juice . 140 Resins . 143 Respiration . 148 Reticulate cells . . 116 — fibres . . 117 — pollen . . 62 — seed . 108 — vessels . . 117, 1 18 Retinaculum . 63 Reversed ovule . 136, 138 — seed . 106 Rhizanthea . 167 Rhizines . . 941 Rhizome . . 11 Ribbed seed . . 108 Ringent corolla , . 55 Rivin . 163 Root . . . 1, 9, 129 — fibres . . 9 — of Acotyledons . 141 — of Dicotyledons . 129 Rootstock . . 11 Rosaceous corolla . 52 Rose, receptacle of . 75 Rosette of leaves . 15 Rotate corolla . . 55 Rotation . . 147 — of crops . 145 Round stigma . . 71 Rugged pollen . . 62 Rugose leaves . . 25 Rugosum, seed . . 108 Ruminate embryo . 113 Runcinate . . 27 Ruptilis, dehiscence . 98 Sac . . 45 — embryonic . 156 Sagittate anthers . 61 — leaves . . 24 Samara . 103 Sand . . 145 Sap . . 120 — movement of. . 145 SAP PAGE Sap wood . . 126 Sarcocarp . . 95 Scabrid leaves . . 25 Scabrous stem . . 16 Scalariform vessels . 118 Scales 37, 48 Scaly bulbs . 14 Scandent stem . . 17 Scarious bracts . . 33 — hairs . 139 — stipules . 21 Scobifurm seed . . 108 Scolecite . . 951 Seorpioid cymes 38, 40 Secondary nerves . 3 — spirals . . 82 Secundine . . 135 Seed . 5, 65, 105, 108 — dissemination of . 158 Semen 5, 105 Semi-florets . 56 flosculose capitulum 56 head . 56 Sensitive plants . 150 Sepals . 3, 46, 132 Septa . 66 Septate hairs . 139 Septicidal . . . 97 — capsule , . 99 — dehiscence . 97 Septiferous valves . 97 Septifragal . 97 — capsule . . . 99 — dehiscence . . 97 Sericea, folia . 25 Serrate leaves . . 27 Sertulum . . 35 Sessile . 3 — anthers . 57 — leaves . . 18 — pappus . . 48 — petals . . 51 — stigma . . 73 Seta . . . 921,926 Setose leaves . 25 — receptacle . 37 Sheathing leaves . 19 Silica . 145 Silicule . 101 Siliculose . . 163 Siliqua , . 101 Siliquose . . 163 Silky leaves . 25 Simple berry . 99 — calyx . 46 — corolla . . 51 — leaves . . 28 Simple pappus . . 48 — raceme . . 34 — roots . . . 9 — style . , . 70 — umbel . . . 35 Simplex . 45 Sinuate leaves . . 27 Sinuous anthers . 61 STE PAGE Sleep of plants . 150 Slips . . 7 Smooth leaves . 25 — pollen . . 62 — seed . 108 — stem . 16 Soil, arable . 144 Solid bulbs . 14 Solidus . 14 Solitary flowers . 34 Sori . . 893 Spadieifloral . 167 Spadix . 36 Spathe . 36 Spathulate . 22 Species . 160 Specific names . 160 Spermatia . 940, 945 Spermogonia 940, 945 Spermogonium . 951 Spheroid pollen . 62 Spherotheca . 914 Spicate cyme 38, 40 Spike 34, 36 Spiked symmetry . 88 Spines . 17, 26, 138 Spinous leaves . . 26 — pollen . . . 62 — stem . . . 17 — stipules . 21 Spiral cells . 116 — fibres . . 117 — vessels . . 117 Spirals of cones . . 83 — leaves . . . 79 Spongioles 9, 142 Sporangia 141, 893, 915, 926 Spores . 141, 950, 951 Sporocarp . . 907 Spotted leaves . . 22 Spur . 45, 47 Spurious cells . . 68 — dissepiments . 67 Spurred corolla . . 55 — petals . . 52 Squama . 48 Squamosus . 14 Squamules . 881 Square anthers . . 61 Stamens . .4, 56, 132 — irritability of . 152 — nature of . . 151 Standard . . 53 Starch 119, 142, 144, 158 Stellate corolla . . 55 Stem 1, 10, 16 Stem of Acotyledons 140,893 — of Dicotyledons 123, 147 — of Ferns . 140 — of Monocotyledons 127, 147 Stemless plants . . 10 Sterigmata 940, 945 1030 INDEX OF TECHNICAL TERMS, STE PAGE Sterile flowers . . 45 Stigma . . t, 65, 71 Stipe . 950 Stipitate pappus . 48 — pistil . 64 Stipules squami, formes 21 Stipulate leaves . 19 Stipules . 19 Stock . 7 Stoloniferous stem . 13 Stolons . 15 Stomata . 122 Stone . 95 Straight aestivation . 87 — embryo . 136 — ovule . . 136, 138 Strawberry, receptacle of . . 75 Strife . 16 Striate seed . 108 — stem . . 16 — vessels . 117, 118 Strobilus . 36, 104 Strophioles . 110 Strychnine . 143 Style 4, 65, 70 Stylcspores . 952 Suber . 125 Sub-petiolate leaves . 18 Subulate filament . 59 — leaves . . 22 Suckers . 16 Suffruticose . 10 Sugar . 143, 144, 158 — grape . . 143 Superior ovary . . 65 Superficial stigma . 71 Suppression 88, 93 Surface of seed . . 108 Suspended anthers . 62 — seed . 106 Suspensor . 136, 157 Suture 56, 95 Symmetry . . 87 — rayed . . 88 Symphysis 88, 89 Syncarpous fruits 94, 97, 99 Syngenesious . 59 System . 163 — medullary . 124 System of A. L de Jussieu . 161, 164 — Brongniart . . 165 SYS PAGE System of A. P de Candolle 161, 164 — Linnaeus 161, 162 — Tournefort . 161, 162 Tale a . 7 Tap-roots . 9, 130 Tartaric acid . 143 Taxonomy 1, 160 Teeth . 96 Tendrils . . 31 Tercine . 135 Terete leaves . 22 — stem . 16 Terminal inflorescence 33 — style . 70 Tertiary nerves . . 3 Testa 5, 105 Tetradynamous . . 58 Tetragonus, caulis . 16 Tetragynia . 163 Thalamifloral . 57 Thallus . 940 Thecae 921, 926, 940, 950 Theory of carpels . 68 Thyrsus 34, 39 Tigellits . 5 Tissue . . 1 — muriform . . 126 — vegetable . 115 Tomentose leaves . 25 — stem . 17 Toothed calyx . 47, 48 — leaves . . 26 — petals . . 52 Torus 74, 132 Tournefort, system of 161, 162 Trachece , . 117 Transverse dehiscence 62, 98 Triadelphous . . 59 Triandria . . . 163 Triangular pollen . 62 — stem . 16 Trichogyne Trichosporangia . 967 . 971 Trichotomous . 18 Trifid calyx . 46 Trigonous stem . . 16 Trigyria . . 163 Tripinnate . 31 Tristichous . 79 TRI PAGE Triternate . . 31 Trophospermia . . 5 Trunk . 10 Tubercied seed . . 108 Tuberous roots . . 10 Tubers . 15 Tubes . 951 Tubular corolla . . 54 — petals . . . 52 Tunicalus . . 14 Turbinate calyx . 47 — seed . 108 Turpentine . 127 Twining stem . 17 Twisted aestivation . 86 Two-celled anthers . 60 — ovary . . 67 Two-horned anthers . 60 Umbel 34, 35 Umbellate cyme 38, 40 Umbellulce . . 35 Umbilicus . 5, 105, 108 Undidata, folia . . 25 Unequal development 88, 89 Unguiculata . 51 Unguis . 3 Unicellular hairs . 138 Unilocular capsule . 99 Union of organs . 119 Univalved fruits . 97 Urceolate calyx . . 48 — corolla . . 55 Urn . . .921, 926 Utricle . 99 Vaga . 107 Vaginans . . 19 vaginula . . 921, 926 Valvate aestivation . 86 — dehiscence of anther 62 Valves . 97 Variety . 160 Vascular plants . 165, 167 Vegetable alkalies . 143 — anatomy . 115 — axis . 2 — histology . 115 V egetable physiology . 142 — tissue . . 115 ZYG PAGE Veins . . .131 Velvety leaves . . 25 Ventral face of seed . 106 — hilum . . .106 — suture . . .95 Ventricle . . .906 Venules . . . 131 Vernation . . .78 Versatile anthers . 62 Vertical dehiscence of anther . . .62 Vtrticillata, folia . 23 Verticilli ... 2 Vesicles, embryonic 136, 156 Vesicular glands . 140 Vesiculosus . .47 Vessels . . 115, 117 Vexillaris . . .87 Vexillum . . .53 Villous leaves . . 25 — stem . . .17 Vitcllus . . .136 Volubilis, caulis . 17 Volva . . . 950 Waved leaves . . 25 Weeping trees . .149 Whorled branches . 1 7 — leaves . . 2, 22, 78 Whorls ... 2 Wind, fertilization by 155 Winged claw . .51 — petiole . . .19 — seed . . .108 — stem . . .16 Wings . . .53 Wood . . .126 Woody fibres . .124 — fruits . . .95 — stem . . .10 — tissue . . .119 Woolly leaves . . 25 — stem .. . .17 Wrinkled leaves . 25 — seed . . . 108 Zoospores . . 965 Zygosporangium . 952 Zygospores . . 952 861 442 442 480 245 742 741 739 451 451 870 286 627 371 282 282 366 366 380 693 692 [Oil 604 606 527 474 774 768 606 927 356 354 354 774 553 205 1001 973 762 630 504 597 975 205 979 637 637 491 695 695 INDEX OF NAMES AC I ADE AIjP Aciotis PAGE . 431 Adenostyles PAGE . 502 Agrostis . PAGE . 883 Aciphylla . . 469 Adesmia . . 371 Agrostostacbyde* . 693 Acisanthera . 431 Adhatoda . . 606 Agrostostachys . 693 Ackama . 393 Adi an turn , . 900 Agyrium . . 956 Acleisanthes . 627 Adina . 485 Ailantus , . 328 Acmadenia 315, 322 Adinandra . 273 Ainsliea . 505 Acmenas . . 425 Adlumia . . 221 Aiouea . . 654 Aconitum . . 185 Adonis . 175 Aira . . 885 Aeon ti as . . 836 Adoxa 474, 482 Airopsis . . 885 Acoroide* . . 835 Adoxese . 474 Aitonia . 353 Acorus . 835 -ZEcbmanthera . 606 Aizoide* . 261, 461 Aeotyledones . 893 •ZEehmea . . 768 Aizoon 261, 461 Acridoearpus . 301 JEgerita . . 958 Ajuga . 622 Acroeomia . . 819 JEgialitis . . 527 Ajugoide* . . 622 Aerodielidium . 654 .ZEgilops , . 885 Akebia . 207 Acronychia 315, 325 JEginetia . . 693 Alangium . . 476 Acropera . . 774 yEgiphila . . 617 Alaria . 972 Aerophyllum . 393 ACgle . 315 Alberta . 486 Acrosanthes . 261 -ZEgopodinm . 468 Alberte* . . 486 Acroschisma . 928 Aigofoxicon . 648 Albizzia . 366 Acroscyphus . 945 Aeriopsis . . 774 Albuca . 846 Acrostiehum . 900 Aerva . 037 Alchemilla . 380 Acrothamium . 962 JEschynanthus . 597 Alebornea . . 693 Acrotrema . . 190 iEschynomyne . 371 Aldina . 360 Acrotriclie . 523 .ZEsculus . 353, 356 Aldrovandra . 407 Actsea . 185 .ZEthionema 228, 229 Alectoria . . 945 Actephila . . 691 A3thusa . 469 Alectra . 587 Actidium . . 956 .ZExtoxicon . 648 Alectryon . . 353 Actinidia . . 274 Affonsea . . 366 Alepyrum . . 875 Actinodapbne . 654 Afzelia . 368 Aleurites . . 692 Aetinostemma . 452 Agapanthus . 846 Alg® 965, 1023 Actinostrobus . 742 Agaricus , . 954 — Spuri* . . 979 Actinothyrium . 960 Agarura . 972 Aliberta . . 486 Actinotus . . 468 Agathophyllum . . 654 Alisma . 801 Adansonia . 282 Agathosma 315, 322 Alismace® 799, 1018 Adansonie* . 282 Agation . 242 Alkanna . . 572 Adenandra 315, 322 Agave . 788 Allamanda . 550 Adenantbera . 366 Agave* . 788 Allamande® . 550 Adenantbere* . 366 Agel*a . . 364 Alliaria . 228 Adenanthos . 664 Ageratum . 502, 503 Allinm . 846 Adenaria . . 433 Aglaia . 334 Allomorpha . 431 Adenocalymna . 602 Aglaonema . 836 Alloplectus . 597 Adenocline . 695 Aglavzonia . 972 Almeida . 315, 323 Adenocline® . 695 Agonandra . 337 Alnus . 678 Adenogramme . 261 Agonis . 425 Alocasia . . 836 Adenophora . 512 Agraphis . . 846 Aloe . . 846 Adenosacme . 486 Agrimonia . 380 Aloine* . 846 Adenosma . 605 Agriophyllum . 639 Alonsoa . 686 Adenostepbanum . 664 Agrostemma . 255 Alopeenrus . 883 Adenostemma . 603 Agrostide* . 883 Alphitonia . 348 A < * K 198 762 760 654 480 257 410 242 242 452 900 788 637 282 805 353 371 228 228 550 486 954 968 1012 635 635 637 786 1018 788 550 927 500 837 503 368 368 852 433 433 468 468 884 760 . 762 334 , 371 , 837 1001 . 884 . 350 . 689 . 431 . 603 . 927 . 242 . 550 . 384 . 385 . 332 . 332 . 980 . 639 . 927 . 260 INDEX OF NAMES. ANA PAGE Anacamptis . 774 Anacamptodon . . 927 Anacardiacea . 360 Anacardie® . . 362 Anacard/ete . 360 Anacardium . 362 Anacharide® . 756 Anacharis . . 756 Anacolosa . . 337 Anacyclus . . 500 Anadyomene . 973 Anaectargium . 927 Anaectoehilus . 775 Anagallide® . 530 Anagallis . . 530 Anagyris . . 371 Anamirta . . 201 Ananassa . . 768 Anaphalis . , 503 Anaporc® . . 836 Anastatiea . 228 Anaxagorea . 198 Anchusa . . 572 Anchuse® . . 572 Aneistrocladus . . 278 Anconium . . 229 Andersona . 523 Andraclme . 691 Andrachne® . 691 Andraea . 928 Andr®ace® . 928 Andrographis . 606 Andromeda . 515 Andromede® . 515 Andropetalum . . 664 Andropogon . 882 Andropogone® . . 822 Androsace . . 530 Androtrichum . . 878 Andryala . . 498 Aneilema . . 869 Aneimia . 900 Anemiopsis . 733 Anemone . . 174 Anemone® 173, 996 Anemopaegma . . 602 Anesorhiza . 469 Aneura . 939 Angelica . . 469 Angelice® . . 469 Angelonia . . 586 Angianthus . 503 Angiopteris . 901 Angiospoma . 960 Angophora . 425 Angraecum . 774 Angstrcemia . 927 Anguillaria . 852 Anguria . 451 Anigosanthus . 791 Anisacantha . 639 Anisaeanthns .. 606 Anisadenia . 294 Aniseia . 566 Anisodon . . 927 AN! PAGE Anisomeles . 622 Anisomeria . 630 Anisophyllea . 419 Anisophylie® . 419 Anisoptera . 278 Anoda . 282 Anogcissus . 421 Anomatheca . 785 Anomochloa . 882 Anomodon . 928 Anona . 198 Anonace® . 196, 996 Anona . 196 Anopterus . . 393 Anplectrum . 431 Anredera . . 642 Ansellia . 774 Antennaria . 963 Anthemide® . 504 Anthemis . 500, 504 Anthericum . 846 Anthobole® . 725 Anthobolus . 725 Anthocercis . 586 Anthocere® . 940 Anthoceros . 940 Anthochortus . 875 Anthodiscus * 273 Antholoma . 292 Autliolyza . . 785 Anthosperme® . 487 Anthospermum . 487 Anthostema . 696 Anthoxantlium . 883 Antbriscus . 468 Anthnrinm . 835 Antbyllis . . 371 Antiaris . 671 Antidesma . 692 Antidesmc® . 692 Antidesmue . 687 Antigonnm . 633 Antirrhine® . 586 Antirrhinide® . 586 Antirrhinum . 586 Antirrhcea . . 486 Antiscorbut'ca . 221 Antitaxis . . 201 Antitrichia . 928 Antonia . 557 Antonie® . . 557 Antroeepbalus . 940 Anychia . 644 Apalanthe . . 756 Apeiba 291, 292 Apeibe® . . 292 Aperula . 654 Aphaerema . 442 Aphanizomenon . . 980 Apbelandra . 606 Aphelia . 875 Apbyllanthes . 861 Apictcete . 465 Apinagia . . 737 Apium . 468 ARG PAGE Aplosporca . . 968 Apocynacece . 548 Apocyne® . 548, 1008 Apocynum . . 550 Apodanthe® . 711 Apodanthca . 709 Apodanthes . 711 Apodytes . . 337 Aponogete® 805, 1018 Aponcgeton . 807 Aporosa . 692 Aporum . 773 Apostasia . . 777 Apostasiaceae 777, 1017 Aptandra . . 337 Apterantheae . 779 Apteria . 779 Aptosimum . 387 Aquifoliacue . 338 Aquilaria . . 657 Aquilariaoca . 656 Aquilarie® . 657 Aquilarinea . 656 Aquilegia . . 184 Arabideae . . 228 Arabis . 228 Aracese . 836 Aracccs . 831 Arachis . 371 Aralia . 474 Araliaceae . 471, 1005 Aralia . 471 Aralieae . 474 Araucaria . . 742 Araucariwe . 742 Arauja . 553 Arbuteae . . 515 Arbutus . . 515 Areeuthobii'm . 721 Archangelica . 469 Archeria . . 523 Archidium . 927 Arctiodracon . 835 Arctium . 500 Arctopus . . 468 Arctostaphylos . 515 Arctotide® . 504 Aretotis 500, 504 Arcyria . 955 Ardisia . 534 Ardisie® . . 534 Areca . 816 Arecine® . . 816 Aremonia . . 380 Arenaria . . 258 Arenga . 816 Arethuse® . 774 Argania . 536 Argemone . . 217 Argophyllum 393, 396 Argostemma . 486 Arguziets . . 569 Argylea . 603 Argyreia . . 566 Argyreie® . . 566 INDEX OF NAMES. 1033 AliG ASP PAGE PAGE Argyrothamnium . 693 Asperula . . 487 Arissema . . 837 Asphodclcce . 843 Arisarura . . 837 Asphodelus . 846 Aristea . 785 Aspicarpa . 300, 301 Aristida . . 883 Aspidistra . . 841 Aristolochia . 708 Aspidistrese 841, 1020 Aristolochiacece . . 705 Aspidium . . 900 Aristolochiese . 705,708, Aspidocarya . 201 1015 Aspidopterys . 301 Aristotelia . 291, 292 Aspidosperma . 550 Arjoona . 725 Asplenium . 900 Armeniaca . 385 Astelia . 858 Armeria . 527 Asteliese . 858, 1020 Armoracia . . 228 AstephanEe . 553 Arnica . 504 Astephanus . 553 Arnistus . . 578 Aster . 503 Aroidese 831, 1019 Asteranthos . 428 Aronia . 377 Asterina . . 956 Arrabidsea . . 602 Asteriscum . 468 Arracacha . . 468 Asteroidese 502, 503 Arrhenatherum . 885 Asterolinum . 530 Artabotrys . 198 Asteroma . . 960 Artanthe . . 730 Asteromphalus . 979 Artemisia . . 500, 504 Asterophora . 962 Arthrinium . 962 Asterosporium . 958 Arthrocladia . 972 Astilbe 389, 392 Arthrocnemum . 639 Astiria . 287 Arthrophyllum . 474 Astomum , . 927 Arthropodium . 846 Astragalus . 371 Arthrosporese . 962 Astrautia . . 468 Artkrostylis . 879 Astrapaea . . 287 Artlirotaxis . 742 Astrocarpus . 238 Artocarpese . 671 Astrocaryum . 819 Artoearpece . 669 Astroloma . 523 Artocarpus . 671 Astronia . . 431 Arum . 837 Astroniese . . 431 Arundinaria . S85 Astronium . 362 Arundinese . . 884 Asystasia . . 606 Arundo . 884 Asystasiea? . 606 Asagraya . . 852 Ataccia . 782 Asarese . 7<>7 Atalantia . . 315 Asarinece . . . 705 Atalaya . 353 Asarum . 707 Atelanthera . 228 Asearina . . . 735 Athalamia . . 940 Asebaria . . 448 Atbanasia . 500, 504 Aschariece . . 448 Atherospermete 646, 648 Ascbidoblastene . 167 Atractobolus . 955 Aschpiadacece . . 551 Atractylis . . 504 Asclepiadse . . 554 Atragene . . 173 Asclepias . . 554 Atraphaxis . 633 Asclepiadese 551, 1009 Atrip/ices . . 637 Ascobolus . . 956 Atriplex . . 639 Ascophora . . 961 Atropa . 578 Ascyrium . . 267 Attalea . 819 Aseroe . 954 Aubrietia . . 228 Asianthus . . 774 Aubrya . 298 Asimina . 198 Aucuba . 475 Askepos . . £40 Aulaeomnium . 927 Aspalanthus . 371 Aulacopilum . 927 Asparagese 859, 1020 Aulax . 664 Asparagi . . 859 Aulaya . 587 Asparagus . . 24, 860 Aurantiacene 315 318, 999 Aspergillus . 963 Aurantieae . . 315 Asperifolia . 569 Australina . 668 Asperococcus . 972 A vena , 885 AVE BIG TAGE PAGE Avenese . 884 Basellese 640, 1013 Averrboa . . 297 Basidiosporeae . 952 Avicennia . . 617 Bassia . 536 Avicennieae . 617 Bastardia . . 282 Axinaea . 431 Batatas . 566 Axinandra . 433 Batidese 305, 738, 999, 1016 Aydendron . 654 Batis . 739 Ayenia . 286 Batrachospermum . 967 Azadirachta . 334 Battarea . . . 955 Azalea . 516 Bauera . 391, 393 Azara . 245 Bauhinia . . 368 Azolla . 911 Bauhine* . . 368 Azorella . 468 Beaufortia . 425 Azygites . . 961 Beaumontia . . 550 Beckmannia . 883 Begonia 8, 455 Babiana . . 785 Begoniacese 453 1002, 1004 Baceaurea . . 692 Begoniella . . 455 Baccliaris . . 503 Beilschmiedia . . 654 Bacillariese . 978 Bejaria . 516 Baekbousia . 425 Bellendena . 664 Backia . 368 Bellevalia . . 846 Bacterium . 979 Beilis . 603 Bactris . 819 Bellium . 502 Baeckia . 425 Bellotia . 973 Bseomyees . . 945 Bellucia . 431 Bseria . 500 Beloperona . 606 Bahia . 504 Benga . 292 Balanites . . 328 Bonincasa . . 451 Balanopbora . 728 Benitzia . 779 Balanophorese 726, 1016 Bennettia . . . 695 Baliospermum . 695 Bennettieae . 695 Ballota . 622 Benthamia . 475 Balsamia . . 956 Bentinckia . . 817 Balsamifluce 411, 1002 Berardia . . 414 Balsaminacets . 309 Berberctcca . 202 BalsamincEe 308, 309, 999 Berberideae . 202, 996 Balsamodendron . 332 Berberides . . 202 Bambusa . . 885 Berberidopsis . 205 Banara . 442 Berberis . 205 Banareae . . 442 Bergia . 265 Bangia . 967 Berkeleya . . 979 Banisteria . 300, 301 Berkheya . . 504 Banisteriese . 301 Bernardia . . . 693 Bank si a . 664 Bernardina . 530 Banksieae . . 664 Bersama . . 359 Baphia . 371 Bertholletia . 425 Baptisia . 371 Bertiera . 486 Barbacenia . 793 Bertolonia . 430, 431 Barbarea . . 228 Bertya . 689 Barbula . 927 Bortyeae . 689 Barclaya . . 210 Berzelia . 414 Barkeria . . 774 Beschemia . 348 Barleria . 606 Besleria . 597 Barlerieae . . 606 Beslerio® . . 597 Barnadesia . 505 Beta . . . 639 Barosma . 315, 322 Betonica . . 622 Barringtonia . 425 Betu'a . 678 Barringtonieae . 425 Betulace, 891 . 760 . 839 s 199 . 505 . 672 . 672 . 838 . 892 . 891 . 892 . 470 . 853 . 708 . 708 . 708 . 708 .. 554 . 554 . 554 . 547 . 199 .•860 s 860 . 848 . 860 . 687 . 488 . 488 . 848 . 902 . 902 PLANTS MENTIONED FOR THEIR USES ETC, 1055 ASP PAGE Asplenium Adiantum- nigrum . 902 — Ruta-muraria . 902 — Trichomanes. 902 Asteriseus . 232 Astragalus aristatus . 374 — creticus 374 — verus . 374 Atherosperma moscha- tum 649 Atractylis gummifera. 505 Atriplex hortensis 640 Atropa Belladonna 580 Attalea funifera . 820 Aubergine . 581 Aucuba 477 Ava .... 731 Arena sativa 890 Arens . 388 Averrhoa Bi limbi 298 — Carambola . 298 Avicennia . 618 Avocado . . 655 Ayapana . 505 Azalea pontica . 517 Bactris setosa . 820 Badiane 195 Badiera diversifolia . 251 Balanites pegyptiaca . 329 Balanophora 728 Balaustium 436 Balm 622 — of Gilead . 322, 743 Balsam, Liquidambar 412 — of Tolu 373 — of Unieri 299 Bal samite . 505 Balsamodendron afri- canum . 332 — Kafal . 332 — Mukul . 332 — Myrrha 332 — Opobalsamum 332 — Roxburgliii . 332 Bamboo 891 Bambusa arundinacea 891 glaucescens . 892 — Metake 892 — verticillata . 891 Banana . . 765 Banksia 665 Banyan 672 Baobab 283 Barbarea vulgaris 231 Barberry . 205 Barley 890 Barosma crenata 323 Basella alba 642 — rubra . 642 Basil, Sweet 622 Bassia butyracea 536 — latifolia 536 — longifolia 536 BAS PAGE Bassia Parkii 536 Batatas 567 Baume a cochon 332 Bdellium . 333 Beam-tree . 387 Bean 373 Beaten Woman’s Herb 796 Bebeeru . . 655 Bcdeguar . 387 Beech '716 Beetroot . 640 Begonia argyrostigma 455 — cinnabarina . 455 — coccinea 455 — discolor 455 — diversifolia . 455 — fuchsioides . 455 — grandiflora . 455 — heracleifolia . 455 — inearnata 455 — malabarica . 455 — manicata 455 — Rex 455 — semperflorens 455 — tomentosa 455 — tuberosa 455 — zebrina 455 Belladonna 580 Bella-sombra 630 Bengal Sage 622 Benincasa cerifera 453 Beu-nut 236 Benthamia fragifera . 477 Benzoin 543 Berberine . 205 Berberis faseicularis . 205 — Lycium 205 — vulgaris 205 Bergamot, Essence of 320 Bertholletia excelsa . 426 Beta Cycla 640 — Rapa . 640 Betel 731 Betula alba . . 679 — lenta 679 — lutea 679 — nigra . 679 Bhang 696 Biarum 838 Bigarou 388 Bigncnia Leucoxylon . 603 Billbergia tinctoria . 768 Bindweed . 567 Biota orientalis . 746 Birch 679 Bird-Cherry 3S8 Birdlime . .310, 721 Biri biri . 655 Bischoffia . 698 Bistort 634 Bitter Almond . 388 — Sweet . 581 Bixa Orellana . 246 Blackberry 388 Bladder- Senna . 374 BRY PAGE Blighia sapida . . 354 Blinding-tree . . 697 Blitum Bonus-Henri- cus . . . 6i0 — rubrum . .640 Blyxa . . .757 Boehmeria nivea . 669 — Puya . . . 669 Boerhaavia hirsuta . 628 — procumbens . . 628 — tuberosa . . 628 Bog-Iris . . .785 Boldoa . . . 649 Boletus castaneus . 955 — edulis . . . 955 Bongardia Chrysogo • iram . . . 205 Bonne Dame . . 640 Boottia . . . 757 Boquila . . . 207 Borage . . .572 Borassus flabelliformis 8 1 9 Borrago officinalis . 572 Boschjes stroop . 665 Bosia . . . 630 Boswellia thurifera . 332 Botany-Bay Gum . 863 Bo-tree . . . 672 Botrytis Bassiana . 962 Botrycliium cicuta- rium . . . 903 Box ... . .700 — berry . . .517 Brabejum stellatum . 665 Bramble . . . 388 Brasenia peltata . 212 Brasiline . . . 372 Brassica Napus . .231 — oleracea . .231 — Rapa . . .231 Brayera anthelmin- thica . . . 388 Brazil-nut . . .426 — wood . . . 372 Bread-fruit treo . . 672 Bredes . . .581 Brinjal . . .581 Bromelia Pinguin . 768 Bromicolla aleutica . 964 Bromus cathartieus . 892 — Mango . . . 891 Broodboom . .753 Broom . . .374 Brosimum Alicastrum 672 Broussonetia papyri- fera . . 672 Brucea antidysente- rica . . . 329 — sumatrana . . 329 Brucine . . . 557 Brugmansia . .711 Bruguiera . . .419 Brunsfelsia uniflora . 588 Bryonia abyssinica . 452 — alba , , , 452 536 470 960 505 387 332 332 373 373 799 713 536 288 700 301 902 231 819 332 373 372 373 487 374 604 891 539 820 838 617 635 746 270 270 270 554 441 560 192 847 232 274 275 512 512 512 655 278 655 640 640 . 332 . 333 PLANTS MENTIONED FOR THEIR USES ETC, CAN PAGE Canarium Zeylanica 333 Canary-grass 892 Candle-tree . 604 Canella bark . 243 Cane Palm 820 Canna . . 760 Cannabis sativa . 676 Cannon-ball tree 426 Cantharellus cibarins 955 Caoutchouc 554 Capers 235 Capparis sodada 235 — spinosa 234 Capsicum annuum 581 Cara'ibe Cabbage 838 Carana gum 332 Cara pa guianensis 335 Carat 373 Caraway . 469 Cardamine amara 231 — americana 231 — asarifolia 231 — hirsuta . 231 ■ — maritima 231 — nnsturtioides 231 — pratensis 231 Cardamoms 762 Cardiospermum Hali caeabum 354 Cardoon 506 Carducea . . 505 Carex arenaria . 880 — nervosa . 880 Carica digitata . . 449 Carissa Carandas . 551 — edulis . . 551 a 0 Sh 3 M 1 . 551 Carludovica palmata . 829 Carnaiiba . . 820 Carob . 372 Carpinus Betulus . 718 Carpodinus duleis . 551 Carrageen Moss . 982 Carrot . . .470 Carthamine . . 506 Carum Carui . . 469 Carya alba . 713 — amara . . 713 — glabra . . 713 — nigra . . . 713 ■ — olivseformis . 713 Caryophyllus rroma- ticus . 426 Caryota . 819 Cascarilla bark . 697 Casein . 275, 890 Cashew-apple . 363 Cassava-bread . 698 Cassia Absus . 372 — acuti folia . 372 — fistula . . 372 — lanceolata . 372 — obovata . 372 Cassis . 399 Castanea vesea . 716 CAS CIT PAGE PAGE Castanospermum aus- Chelidonium majus . 2i8 trale 373 Chenopodium album . 640 Castilloa elastica 697 — anthelminthicum . 640 Castor-oil . 698 — Botrys . 640 Casuarina Equiseti- — ficifolium 640 folia 685 — Quinoa . 640 — muricata 685 — viride . 640 Catechu 372 Cherimoya 199 Catha edulis 344 Cherris 676 Cauliflower 231 Cherry . 388 Caulophyllum thalic- — Winter . 581 troides . 205 Chervil . . 470 Cayenne Pepper 581 Chestnut . 716 Cecropia peltata 673 — Australian 373 Cedar 743 — Water. . 441 — Bed . 746 Chibou 332 — wood 335 Chick Pea . 373 Cedrat 320 Chickrassia 335 Cedrela febrihiga 335 Cliickweed . 259 Cedrus Deodara 743 Chicory 506 — Libani . 743 Chili . . . . 581 Celastrus nutans 344 Chimaphila umbellata 520 - — • paniculatus . 344 Chiocoeca . 487 — veneratus 344 Chirita 560 Celery 469 Chive 847 Cellulose . 965 Chloranthus officinalis 735 Celosia argentea 637 Chondrus polymor- — cristata . 637 phus 982 - — margaritacea . 637 Choopa 354 Oeltis australis . 674 Chrysobalanus Icaco . 388 — occidentals . 674 Chrysophyllum Cai- - — orientalis 674 nita 536 Cenomyce rangiferina 948 Chrysosplenium . 394 Centaurea . 505 Churras 676 Centaury . 559 Cibotium . 902 Cephaelis . 487 Cicada Orni 547 Cerastium arvense 259 Cicca disticha 698 Cerasus Avium . 388 Cicely 470 — caproniana . 388 Cicer arietinum . 373 — duracina 388 Cichorium Intybus 506 — Juliana . 388 Cicutaria virosa . 469 — Lauro-Cerasus 388 Cigala 547 — Mahal eb 388 Cimicifuga fcetida 189 — Padus . 388 — serpentaria . 189 Ceratonia Siliqua 372 Cinchona . 487 Ceratopteris thalic Cinchonine 487 troides . 902 Cinnamic . 373 Ceroxylon andicola 820 Cinnamomum Cassia . 655 Cerbera Ahouai 551 — malabathricum 655 — salutaris 551 — officinale 655 Cervantesia tomen- Cinnamon . . 243, 655 tosa 725 Cipipa 698 Cestrum diurnum 583 Circaea lutetiana 439 — nocturnum . 583 Cissampelos Caapeba 202 — vespertinum . 583 — ebracteatus . 202 Ceteracli offieinarum 902 — glaberrimus . 202 Ceti’aria islandica 948 — mauritiana . 202 Cevadille . 853 — ovali folia 202 Ceylon Moss 983 — Pareira 202 Chailletia toxicaria 336 Cissus cordata . 350 Chamserops excelsa 820 — setosa . 350 — humilis . 820 — tinctoria 350 — Hystrix 820 Citron 320 Chara 921 — wood 746 Chaya-ver . . 488 Citrullus colocynthis 452 PAGE . 453 . 320 . 320 . 320 . 320 . 320 . 320 . 320 . 320 . 593 . 955 . 557 . 188 . 188 . 188 . 188 . 188 . 188 . 234 . 234 . 234 . 617 . 655 . 374 . 426 . 914 . 270 . 270 . 296 . 635 . 202 . 201 . 202 . 201 . 202 . 201 . 201 . 201 . 672 . 461 . 645 i 232 . 231 . 232 . 246 . 246 . 246 . 637 . 288 . 819 . 820 . 388 . 819 . 487 . 891 s 853 . 854 . 853 . 551 . 799 . 838 . 838 . 452 . 505 PLANTS MENTIONED FOR THEIR USES ETC. 1057 COL PAGE Colubrina . 349 Colubrine . 708 Columnea . 599 Colutea arborescens . 374 Colza 231 Comfrey . 572 Commelyna angusti- folia . . 869 — ccelestis 869 — medica . . 869 — Rumphii 869 — stricta . 869 — tuberosa 869 Comptonia asplenii- folia 683 Conceveiba guianensis 698 Condaminea 488 Conferva rivularis 982 Conium maculatum . 470 Connarus Lambertii . 364 — panicukitus . 364 — speciosus 364 Conocarpus latifolius . 421 Convallaria maialis . 857 Convolvulus dissectus 567 — Jalapa . 567 — sagittsefolius 567 — Scammonia . 567 — Schiedeanus . 567 — Turpethum . 567 Cookia punctata 320 Copaiba, Balsam of . 372 Copaifera cordifolia . 372 — coriacea . 372 — officinalis 372 Copal . . 372 Copalche bark . 557 Coptis Teeta „ 188 — trifoliata 188 Corallina officinalis . 982 Coralline . 932 Corckorusacutangulus 292 — capsularis 292 — depressus 292 — olitorius 292 — tridens . 292 Cordia Myxa 574 — Rumpkii 574 — Sebestense 574 Cordyline australis . 860 — reflexa . 860 Corema 342 Coriander . 470 Coriandrum sativum . 470 Coriaria myrtifolia 302 — nepalensis 302 — ruscifolia 302 — sarmentosa . 302 Coriariine . 302 Coris. 531 Cork .... 716 Cornflower 505 Corniine . 477 Corn Salad 491 Cornus florida . 477 COK PAGE Cornus fragifera 477 — mascula 477 — sanguinea 477 Correa 323 Corsican Moss . 982 Corydalis bulbosa 221 — capnoides 221 — fabacea. 221 Corylus americana 718 — avellana 718 — Colurna 718 — rostrata . 718 — tubulosa 718 Corypha cerifera 820 — sylvestris 820 — umbraculifera 819, 820 Cosciniumfenestratum 202 Costus 762 Couaque . 698 Couma 551 Coumarine 373 Coumarouna odorata . 373 Couroupita 426 Cow-itch . 373 — Parsnip 470 — plant . 554 — tree . . 536, 672 Crab-oil 335 Crambe maritima 231 — tatarica 232 Craniolaria annua 610 Crassula arborescens . 405 — Cotyledon 405 — rubens . 405 Crataegus Azarolus 387 — Oxyacantha . 387 Cratseva gynandra 235 — Nurvala 235 — Tapia . Cratoxylon Hornschu- 235 chii 268 Crescentia Cujete 604 Cress 231 Crinum zeylanicum . 789 Crithmum maritimum 470 Crocus sativus . 786 Crotalari a j uncea O i ^ Croton campestris 697 — Eleuteria 697 — gratissimum . 697 — micans . 697 — nitens . 697 — perdiceps 697 — Pseudo-China 697 — suberosus 697 — Tiglium 697 Croton oil . 697 Crozophora tinctoria . 698 Cubebs 731 Cucumber . 452 — root 857 Cucumis Anguria 453 — Dudaim 453 — Melo 453 — sativus . 452 DAC PAGE Cucurbita maxima . 452 — moschata . . 452 — ovifera . . . 453 — Pepo ^ . . 452 Cudbear . . . 948 Cudrania javanensis . 673 Cumin . . .470 Cuminum Cyminum . 470 Cupania sapida . . 354 Cupkea . . . 434 Cupressus pyramidale 746 — sempervirens . 746 Cura5oa . . . 320 Curare . . . 557 Curatella Cambaiba . 190 Curculigo orchioides . 792 — stans . . . 792 Curcuma . . .199 — angustifolia . .762 — leucorkiza . . 762 — Zedoaria . .762 — Zerumbet . .762 Curcumine . . . 762 Currant . . 350, 399 — American . . 630 Cuscuta densiflora . 568 — major . . . 568 — minor . . . 568 Cusparine . . . 323 Custard-apple . .199 Cyanotis axillaris . 869 Cyathea medullaris . 902 Cycas . . . 753 Cyclamen europamm . 531 Cydonia vulgaris . 387 Cynanchum acutum . 554 — monspeliense . 554 Cynara Cardunculus . 506 — Scolymus . . 506 Cynodon Dactylon . 891 - — lineare . . .891 Cynoglossum offici- nale . . . 572 Cynomorium coeci- neum . . . 728 Cyperus articulatus . 880 — alopecuroides . 880 — dives . . . 880 — esculentus . . 880 — longus . . . 880 — rotundus . . 880 Cypress . . .746 — Deciduous . .746 Cypripedium pubes- cens . . .777 Cytinus . . .711 Cyttaria Berteroi . 958 — Gunnii . . . 958 — Hookeri . . 958 Dacrydium cupressi- num . . . 744 — Franklinii . .744 1058 INDEX OF PLANTS MENTIONED FOR THEIR USES ETC, DAC PAGE Dactylis glomerata . 892 Dactyloctenium segyp- tiacura . . .891 Dalbergia latifolia . 373 Dammar . . .744 — Black . . . 333 Dammara australis . 744 — orientalis . . 744 Dandelion . . . 506 Dapline alpina . . 658 — cannabina . . 658 — Cneorum . . 658 — Gnidium . . 658 — Laureola . . 658 — Mezereum . . 658 — Tarton-raira . . 658 Darnel . . . 892 Date Palm . .819 — Plum . . . 539 Datisca cannabina . 457 Datiscine . . . 457 Datura Metel . . 580 — Stramonium . . 580 — Tatula . . .580 Daturine . . 580 Da villa elliptica . 190 Decaisnea . . . 207 Delphinium Conso- lida . . .188 — Staphisagria . .188 Deodar . . .743 Detarium Senegalense 372 Deutzia scabra . .396 Devil’s Dung . . 470 Dhak .... 434 Diamba . . .676 Dianella odorata . 861 Dianthns Caryophyl- lus . . . 259 Diatomepelite . .979 Dictamnus albus . 318 Dieffenbachia seguina 838 Diervilla canadensis . 482 Digitaline . . . 588 Dillenia serrata . .190 — speciosa . .190 Dioscorea alata . .796 — Batatas . .796 — bulbifera . .796 — pentaphylla . .796 — sativa . . . 796 Diosmine . . . 323 Diospyros Ebenaster . 539 — Ebenum . . 539 — Embryopteris . 539 — Kaki . . .539 — Lotus . . . 539 — melanoxylon . 539 — quesita . . 539 — reticulata . .539 — tomentosa . .539 — Virginiana . . 539 Diplazium . . 902 Dipsacus fullonlum . 495 — sylvestris . . 495 DIP PAGE Dipterocarpus an- gustifolius . 278 — hispidus . . 278 — .laevis . . .278 — trinervis . . 278 — zeylanicus . .278 Dipteryx odorata . 373 Dirca palustris . . 658 Discaria febrifuga . 349 Divi Divi . . .373 Dock . . . 634 Dodder . . . 568 Dodonsea viscosa . 354 Dog-Bose . . .387 Dogsbane . . 554 Dogwood . . .477 Dolichos Lablab . 373 Donkey’s-eye . . 373 Dorema Ammoniacum 471 Dotkidea tinctoria . 965 Dovua zelanica . .278 Dracaena Draco . .861 Dracunculus . . 838 Dragon’s-blood . 373, 820 Dragon tree . .861 Drepanocarpus sene- galensis . . 373 Drimys axillaris . 195 — Granatensis . .195 — Winteri . .195 Drimyspermum . . 658 Drogue amere . .607 Dropwort , . 388 Drosera . . . 408 Dryobalanops Cam- phora . . . 278 Dryas octopetala . 388 Dry Caries . . 965 Dulse . . .982 Dutch Keed . . 907 Duvaua dependens . 363 Dyer’s Savory . . 506 — Weed . . 238, 374 Dysoxylum . . 335 Earth-gall . .488 Earth-nut . 373, 470 Eau d’ange . . 426 — de Cologne . . 320 — de Creole . . 270 — medicinale . . 588 Ebony . . . 539 Eebalium agreste . 452 Echium vulgar e . 573 Egg-plant . .581 Egyptian Bath-sponge 453 Ehretia . . .573 Eleeagnus angustifolia 661 — arborea . ,661 — conferta . .661 — hortensis . .661 — orientalis . .661 Elaeis guineensis . 820 Eheocarpus Hinau . 293 ELiE PAGE Elseococca verrucosa . 698 Elaeodendron Kuba . 344 Elaphriumelemiferum 332 — tomentosum . 332 Elder . . . 482 Elecampane . . 505 Elemi . . . 332 Eleusine coracana . 89 1 Elm . . . .677 Emblica officinalis . 698 Emetine . . . 487 Empetrum nigrnm . 342 Encephalartos . . 753 Engelhardtia spicata . 713 Enhalus , . .757 Ephedra . . .750 Epilobium . . 439 Epipactis latifolia . 777 Equisetum arvense , 907 — fluviatile . . 907 — hyemale . . 907 — limosum . . 907 Ergot . . . 965 Ergotism . . .965 Eriobotrya japonica . 387 Eriocaulon setaceum . 873 Eriophorum . .880 Erodium moschatum . 309 Euca sativa . . 232 Ervum Ervilia . . 373 — Lens . .373 Erysiphe . . 958 Erythraea centaurium 559 Erythronium Dens-ca- nis . . 847 Erythroxylon areola- tum .. . . 296 — Coca . . . 296 Escallonia . . . 394 Eschalot . . . 847 Esparto . . . 892 Eucalyptus Globulus . 426 — Gunnii . . . 426 • — robusta . . 426 Eugenia aromatica . 426 — Malaccensis . . 426 — robusta . . 426 — Ugni . . . 426 Euonymus Eoxburghii 344 — tingens . .344 Eupatorium . . 505 Euphorbia abyssinica 697 — air ygdaloides . 697 — antiquorum . .697 — balsamifera . . 697 — canariensis . . 697 — canescens . .697 — corollata . . 697 — cotinifolia . . 697 — Cyparissias . . 697 — Esula . . . 697 — Helioscopia . . 697 — hibernia . . 697 — hirta . . . 697 — bypericifolia . . 697 rue PAGE Euphorbia] Ipecacu- anha 697 — Lathyris 697 — linearis 697 — officinarum . 697 — p.ilustris 697 — parviflora 697 — Peplus , 697 — phosphorea . 697 — resinifera 697 Euphrasia officinalis . 587 Euryale ferox . 212 Euryangium Sumbal . 471 Euscaphis 346 Excaecarla Agallocha . 697 Exidia Auricula-Judae 955 Exogonium Purga 567 Exostemma 488 Eyebright . . 587 Faba vulgaris 373 Fagopyrum esculen- tum 634 Fagus sylvatica 716 Faham 776 Fang-Jani 823 Fatsia papyrifera 475 Fedia 491 Fennel 470 — Bastard 470 Ferraria cathartica . 785 — purgans 785 Festuca quadridentata 892 Fevillea , 453 Fibrine 890 Ficus Carica 672 — elastica . 672, 697 — indica . 672 — religiosa 672 — Sycomorus . 672 Fig . 672 Filbert 718 Fir . 743 Fceniculum vulgare . 470 Fontinalis 928 Fool’s Parsley . 470 Foxglove . 588 Fkicourtia cataphracta 246 — inermis 246 — • Bamontchi . 246 — • sapida 246 — sepiaria 246 Flag , . . 785 Flax 294 — ■ New Zealand 847 Fragaria vesca . 388 Franciscea uniflora . 588 Frankenia portulaci- folia 254 Fraxinus excelsior 547 — Ornus 547 — rotundifolia . 547 Frazera Walteri 560 Fuchsia excorticata . 439 INDEX OF PLANTS MENTIONED FOR THEIR USES ETC, 1059 rue PAGE Fucus 983 Fumago 823 Fumaria officinalis 221 Fungi 955 Fungine . 965 Fungus melitensis . 728 Furze 374 Fustic , . 363, 672 Gagea 847 Galactodendron utile 672 Galam butter 536 Galanga . 762 Galbanum 471 Galipea Cusparia 323 — officinalis 323 Galium . . 488 Galls 716 Gambir . 488 Gamboge . 270 Garcinia mangostana 270 Gardener’s Garters 892 Gean Geastrum hygrometri- 388 cum 956 Gelidium . 983 Gendarussa vulgaris . 607 Genipa americana 488 Genipap . 488 Genipi 505 Genista tinctoria 374 Gentian 559 Gentiana cruciata 559 — lutea 559 Gentianin . 559 Geoffroya spinulosa . 373 — vermifuga 373 Geranium maculatum 309 — nodosum 309 — pratense 309 — Robertianum 309 — sanguineum . 309 — striatum . 309 German tinder . 955 Geum rivale 388 — urbanunx 388 Gherkin . Gigartina Helmintlio- 453 chorton , 982 Ginger 762 — beer 762 Gingerbread Plum 388 Gingilic oil 610 Gingko 747 Gladiolus communis . 785 — segetum 785 Glechoma hederacea . 622 Gleichenia Hermanni . 902 Globularia Alypum . 619 — communis . 619 Glucose 965 Glycirrhiza echinata . 374 — glabra . 374 — glandulifera . 374 GLY PAGE Glycosmis citri folia . 320 Gmelina arborea 617 — parviflora 618 — villosa 617 Gnaphalium dioicum . 505 Gnetum Gnemon 750 — urens . 750 Gnidia 658 Gogul balsam . 332 Gomphia angustifolia 331 — hexasperma . 331 — jabotapita 331 Gomphocarpus crispus 554 Gomphrena globosa . 637 — macrocephala 637 — officinalis 637 Gonolobus maerophyl- lus 554 Gooseberry 399 Gordonia . 274 Gorse 374 Gossypium arboreum . 283 — herbaceum . 283 — hirsutum 283 — peruvianum . 283 — religiosum . 283 Gourd 452 Gout-weed 469 Gracilaria lichenoides 983 Graina d’Ambretta . 283 Grains of Paradise 762 Gram 373 Grapes 350 — Bearded 568 — Seaside 635 Grapple plant . 610 Grass . . 891 — of Parnassus 403 Gratia Dei 587 Gratiola officinalis 587 Greenheart 655 Grenadilla 449 Grewia asiatica . 292 — elastica 292 — microcos 292 — oppositifolia . 293 — orientalis 292 Grey plum 388 Griotte . . 388 Gromwell . 573 Ground Ivy . 622 Guaco 505 Guaiacine 305 Guaiacum officinale . 305 Gualtheriaprocumbcns 517 Guarana . . 354 Guaranene . 354 Guarea 335 Guava 426 Guazuma . . . 288 Guggur . 332 Guimauve 283 Guizotia oleifera 505 Gum ammoniac . 471 — arabic . 372 GUM PAGE Gum Senegal : . 372 — tragacanth . .37-1 Gunja . . . 676 Gunnera maerophylla 417 — scabra . . .417 Gustavia brasiliana . 426 - — - speciosa . . 426 Gutta-percha . . 536 Gymnadenia conopsea 777 Gymnema lactiferum . 554 Gy mnosporangium au- rantiaeum . . 956 Gynandropsis penta- phylla . . . 234 Gynerium argentcum . 892 Hachish . . . 676 Hoemanthus toxicaria 789 Hamatoxylon campe- chianum . . 372 Halymenia edulis . 983 Hamamelis . .410 Hancornia . . 551 ■ — - speciosa . .697 Haplophyllum tuber- culatum- . .318 Haricots . . .373 Hasheesh . . .676 Hazel . . .718 Hebradendron cambo- gioides . . . 270 Hedera Helix . .475 Hediwigia balsamifera 332 Iledycarpus malayanus 354 Hedyosmum arbores- cens . . . 735 — nutans . . .735 Heimia . . . 434 Helianthemum vulgare 240 Helianthus tuberosus 505 Helicteres Sacarotha . 288 Heliotropium euro- p*um . . . 573 Hellebore, White . 853 Helleborine '. . 777 Helleborus foetidus . 189 — niger . . . 189 — orientalis . .189 — viridis . . . 189 Helminthostachys dul- cis . . . 903 Helonias bullata . 854 — dioica . . . 854 Helosis . . . 728 Helvella suspecta . 957 Helwingia . .475 Hematine . . .372 Hemerocallis . . 847 Hemidesmus indicus . 554 Hemionitis . . 902 Hemlock, Lesser . 470 — Mountain . .470 — Water . 469 Hemp . .676 2 HYO PAGE Henbane . , . 580 Henna . . . 434 HeracleumSpondylium 470 Ilerba-di-Cobra . . 505 Herbe a ecurer . .921 — a la Reine . .581 Herb Robert . . 309 Herminiera elaphro- xylon . . . 374 Hermodacte . . 853 Hernandia . . 659 Herniaria glabra . 645 Herpestes amara . 588 Heterostigma Heude- lotianum . , 823 Heudelotia africana . 332 Hibiscus Abelmoschus 283 — digitatus . .283 — °sculentus . .283 — Rosa-Sinensis . 283 — Sabdariffa . .283 Hickory . . .713 Himantoglossum hir- cinium . . . 777 Hippocratia comosa . 344 Hippodromus alata . 354 Hippomanes Manci- nella . . . 697 Hippophaerhamnoides 661 Holboellia latifolia . 207 Holigarna longifolia . 363 Holly . . . 340 Holosteum umbella- tum . . . 259 Honesty . . . 232 Honeysuckle . . 482 Hop . . . .676 Hordeum disticbum . 890 — vulgare . . 890 Horehound . . 622 Hornbeam . .718 Horse-Chestnut. . 357 House-Leek . . 405 Houttuynia . . 733 Hovenia elata . . 349 Humiria balsamifera . 299 — floribunda . . 299 Humulus Lupulus . 676 Hungary water . . 622 Hura crepitans . . 697 Hyacinthus . . 848 Hydnocarpus inebrians 246 Hydnora . . .711 Hydnum repandum . 955 Hydrangea . . 394 Hydrastis canadensis. 188 Hydrocharis Morsus- ranae . . . 757 Hydrocleis . . 799 Hydrocotyle asiatica . 470 Hydrophyllum eana- dense . . .561 Hymensea verrucosa . 372 Hymenodictyon . . 488 Hyoscyamus niger . 580 3 PAGE 268 268 820 928 928 711 519 792 622 622 948 463 332 332 557 557 340 340 340 340 340 340 340 340 195 195 839 536 311 311 311 470 332 461 697 374 374 374 374 505 505 982 242 242 554 488 242 567 785 785 785 785 785 785 785 785 785 PLANTS MENTIONED FOR THEIR USES ETC, IVA PAGE Iva . 505 Ivory, Vegetable 821 Ivy . 475 — Poison . 363 J AC ARANDA 603 Jacob’s Ladder . 564 Jacquinia armillaris 534 Jalap 567 — False . 628 Jambosa . 426 Japan varnish . 329 Jarul Jasminum grandi- 434 florum . 545 — officinale 545 — Sambac . 275, 545 Jatropha Curcas 698 — officinalis 697 Jerusalem Artichoke . 505 Jessamine . . 51 5 Jew's Ears 955 Job’s Tears 891 Juglans cinerea , 713 — nigra . 713 — regia . , 713 Juncus acutus . 865 — conglorueratus 865 — effusus . S65 — glaucus 865 Juniper . 745 Juniperus Bermudiana 746 — communis 745 — Oxycedrus , 745 — Sabina 1 . 745 — Virginiana . 746 Justicia paniculata 607 Jute . 292 K/emferiv 762 Kafal 332 Kalmia 517 Kangaroo-apple 581 Kapia . 744 Kauri . . 744 Kava 731 Kermes . , 716 Ketmie 283 Khat. 344 Khaya 335 Ki-chi . . 441 Kielmeyera 274 Kino .... 373 — American 635 Kirschwasser 388 Kiteou 212 Krameria triandra 251 Kuara 372 Kus-Kus . 891 Kyllingia triceps 880 Lace-bark 658 Lachnanthes tinctoria 791 LAC PAGE Lacquer, Chinese . 363 Lactuca 506 Ladanum . 240 Lady’s Mantle . 387 Laslia apetala 246 Lagenandra toxicaria 838 Lagenaria vulgaris 452 Lagerstrcemia . 434 Lagetta funifera 658 — lintearia 658 Lamb’s Lettuco . 491 Laminaria . 983 Lampblack 743 Lansium . 335 Lantana annua . 617 — pseudothea . 617 — trifolia . 617 Laportea canadensis 669 — crenulata 669 Larch 743 Lardizabala 207 Larix europaea . 743 Larkspur . 188 Laser 471 Lathraea . 593 Lathyrus tuberosus 373 Laudanum, Dutchman’s 449 Laurel 655 Laurelia sempervirens 649 Lauras nobilis . 655 Lavandula Spica 622 — vera 622 Lavender . 622 Laver 983 Lawsonia alba . 434 Laymi 819 Lecanora esculenta 948 — tartarea 948 Lecythis ollaria . Ledebouria hyacinthi- 426 oides 854 Ledum 517 Leek . 847 Lemon 320 — grass . 891 Lentil Leontice Leontopeta- 373 lum 205 Leopoldinia Pia$aba . 820 Lepidium oleraceum . 231 — sativum 231 Leptospermum . 426 Leskea sericea . 928 Lessonia . 983 Lettuce 506 Leucojum vernum 789 Levisticum officinale . 470 Liane a Sirop . 599 Libertia ixioides 785 Li car i 655 Licaria guyanensis 655 Lichens 948 Lignum Rhodium 332 Li gust rum vulgare 547 Lilac, Indian 335 LYC PAGE Lilium candidum . 847 Lily . . 847 Lime . . 320 Limnanthes Douglasii i 314 Limnocharis . 799 Ling,. , 441 Linnsea borealis , 482 Linum aquilinum , 294 — catharticum . , 294 — selaginoides . , 294 — usitatissimum 294 Lippia citriodora , 617 Liquidambar altingia. 412 — orientale , 412 — styraciflua , 412 Liquorice . , 374 Liriodendrontulipifera 195 Lissanthe sapida 524 Litchi , 354 Lithospermum offici- nale 573 Lobelia cardinalis 514 — inflata . 514 — syphilitica . 514 — urens . 514 Lodoicea sechellarum . 820 Logwood . 372 Lolium temulentum . 892 Longan 354 Lonicera Caprifolium . 482 — Xylosteum . 482 Loochs 388 Loquat 387 Loranthus albus 721 — bicolor . 721 — citrocolus 721 — elasticus . . 721 — globosus 721 — longiflorus 721 — rotundifolius . 721 Lovage 470 Love-apple . 581 Luccrn 374 Lucuma Caimito 536 — mammosa 536 Luffa 452 Lunaria rediviva 232 Lupinus albus . 374 — luteus . 374 — varius . . 374 Lupuline . Lustre d’eau . . 676 921 Luzula vernalis . 865 Luzuriaga radicans . 858 Lychnis ehalcedonica . 259 — Githago 259 Lycium indicum 205 Lycoperdon giganteum 955 Lycopersicum esculen- turn 581 Lycopodium catharti- cum 914 — clavatum . 914 — myrsinitis 914 — Phlegmaria . 914 PAGE . 914 .■ 622 . 892 i. 902 . 902 l- . 531 . 434 ,ia 665 . 651 . 373 . 672 . 672 . 892 . 488 . 505 . 505 . 195 . 195 . 195 . 195 . 195 . 195 . 195 . 336 . 655 . 205 . 536 . 902 . 891 . 728 . 902 . 283 . 301 . 301 . 283 . 283 . 270 . 588 . 697 . 580 . 363 . 363 . 640 . 270 . 618 . 698 . 698 . 698 . 698 . 762 . 891 . 547 . 743 . 373 5, 981 . 356 . 760 . 760 . 760 a 277 a 940 PLANTS MENTIONED FOR THEIR USES ETC, 1061 MAR PAGE Marchantia poly- morplia , . 940 Marjoram . . . 622 Marmalade, West In- dian . . . 536 Marmot oil . .517 Marrnbium vulgaris . 622 Marsdenia tenacissima 554 — tinctoria . . 554 Marsilea salvatrix . 909 Marty nia proboscidea 610 Maruru . . .212 Marvel of Peru . .628 Massaranduba . . 536 Master- wort . .470 Mastic . . .363 Mate . . .340 Mauritia vinifera . 819 Maximiliana regia . 819 Meadow-sweet . . 388 Medeola Yirginica . 857 Medicago lupulina . 374 — sativa . . .374 Medlar . . . 387 — West Indian . . 536 Melaleuca Cajaputi . 426 Melampyrum pratense 587 Melandrium dioicum . 259 Melanorrhoea usitatis- sima . . . 363 Melastoma . .432 Melia Azadirachta . 335 — Azederach . . 335 — sempervirens . 335 Melianthus major . 359 — minor . . . 359 Melicocca . . . 354 Meliguetta. . . 762 Melilot . . .374 Melilotus officinalis . 374 Meliosma . . . 359 Melissa officinalis . 622 Melocactus communis 461 Melon . . . 452 Mentha piperita . 622 — Pulegium . . 622 — viridis . . . 622 Mentzelia hispida . 444 Menyanthes trifoliata 560 Mercurialis annua . 697 — perennis . . 697 Mercurio Vegetal . 588 Meriandrabengalensis 622 Mesembryanthemum acinacfforme . 463 — australe . . 463 — crystallinum . . 463 — edule . . . 463 — geniculiflorum . 463 — tortuosum . . 463 Mespilus germanica . 387 Mesua ferrea . .270 — speciosa . .270 Metlioniea . . . 847 Mezereon . . . 658 MIC PAGE Michelia champaea 194 Mignonette 238 Mildew 958 Millet 890 Milnea edulis 335 Mimusops Balata 536 — Elengi . 536 Mineral flour 979 Mirabilis dichotoma . 628 — Jalapa . . 628 — longiflora 628 - — suaveolens . 628 Mistleto . 721 Mohria thurifraga 902 Mokal 509 Molinia eserulea 892 Momordica Balsamina 452 — Charantia 452 Monkey-pot 426 Monniera trifolia 323 Monnina polystachya . 251 Monsonia spinosa 309 Monstera deliciosa 838 - — pertusa . 838 Montinia . 439 Moquilia utilis . 389 Morsea collina . 785 Morchella esculenta . 957 — Pleopos 958 Morel 957 Moringa aptera . 236 — pterygosperma 236 Morphine . 218 Morus alba 671 — celtidifolia . 671 — eorylifolia ' . 071 — indica . 671 — nigra . 671 — pabularia 671 — rubra . 671 Mosses 928 Mould 963 Mountain-Ash . 387 — Tea 517 Mucuna pruriens 373 Mudar 554 Mulberry . 671 — Paper . 672 Mullein 589 Mundtia spinosa 251 Munjeet 488 Musa Ensete 766 — paradisaica . 765 — sapientum 765 — textilis . 766 Muscardine 962 Muscari 848 Mushroom . 955 Mustard . 232 — tree . 548 Mycetide . 965 Myginda . 344 Myoschilos oblongus . 725 Myrica cerifera . 683 — Gale . . . 683 NYM PAGE Myrica sapida . 683 Myricaria germanica . 264 Myristica bicuiba 652 — fatua 652 — fra grans 651 — officinalis 652 — Otoba . 652 — sebifera 652 — spuria . 651 — tingens . 652 — tomentosa . 651 Myrobalans 421 Myrosine . 232 Myroxylon peruiferum 373 - — toluiferum 373 Myrrliinium atropur- pureum . 435 Myrrhis odorata 470 Myrtle 426 Myrtus communis 426 Nabk 349 Narangitas de Quito . 581 Narcissus pseudo-Nar- cissus 789 Nard .... 491 Nardostachys Jata- mansi 491 Narthex Asafcetida 470 Nasturtium 313 — officinale 231 Navel-wort . . 405 Nectanthes Rodiaei 655 Nectarine . 388 Neishout, . ■ . 354 Neiumbium luteum 212 • — ■ speciosum 212 Nephelium lappaeeum 354 -- Litchi . 354 — Longanum 354 Nephrodium escu- lentum . 902 — Eilix-mas 902 Neroli, essence of 320 Nettle 668 New Zealand Spinach 465 Nicotian . 581 Nicotiana rustica 581 — Tabacum 581 Nicotine 581 Nigella 188 Nightshade 581 Nipa . . . . 822 Nitre .... 668 Noyau . . 388, 567 Nuphar luteum . 211 Nutmeg 651 Nyetanthes Arbor- tristis . 545 Nymphsea alba . 211 — eserulea . 211 — Lotus . 211 10G2 INDEX OF PLANTS MENTIONED FOR THEIR USES ETC, OAK PAGE Oak .... 716 Oats .... 890 Ocotea cymbarum 655 — major . 655 Ocymum Basilicum . 622 Odina Odier 363 (Enanthe crocata 470 (Enothera biennis 439 Oidium Tuckeri . 963 Oil of Lavender . 622 — Rhodium 567 — Spike . 622 • — Winter-green 517 — tree, Japanese 698 Olax zeylanica . 338 Oldfieldia africana 354, 698 Olea americana . 547 — europaea . 547 — fragrai.s . 275, 547 Oleander . 551 Oleolum 218 Olibanum . 332 Olive 547 — Bohemian 661 Ombrophytum . 728 Omphalea triandra 697 Oucoba 246 Onion 847 Onobrychis sativa 373 Onosma ,. 573 Onygena . 958 Ophelia . . 560 Ophiocaryon 360 Ophioglossum vulga- turn 903 Ophiopogon japonicus 843 Ophiorhiza Mungos 488 Opium 218 Opuntia vulgaris 461 Orach 640 Orange 320 Orchil 948 Orchis maculata 777 — maseula 777 — militaris 777 — Morio . 777 Ordeal-tree 551 Oreodaphne bullata 655 — exalbata 655 — - foetens . . 655 Origanum Majorana . 622 — Onites . . 622 Ornithogalum altissi mum 848 — pyrenaicum . . 848 Orobanche major 593 Orontium aquatieum . 838 Orris-root . . 785 Orthanthera viminea . 554 Oryza sativa . 890 Oseilles de Guin6e . 283 Osier . 687 Ostrya . 718 Osyris nepalensis . 725 OTT PAGE Ottelia 757 Oumbe 839 Oxalic acid 298 Oxalis acetosella 298 — crenata 298 — Deppei . 298 — esculenta 298 Oxycoccos . 522 Oxyria reniformis 635 Oxystelma esculentum 554 Pachyma pinktouum . 964 Pachyrrhizus 373 Pachysandra 700 Peeonia anomala 189 — officinalis 189 Palma-Christi . 698 Palm wine . 819 — oil 820 Palo de Lecho . 672 — de Velas 604 Pampas Grass . 892 Panax Ginseng . 475 Pandanus . 824 Panicum miliaceum . 890 — plicatum Panquc 892 417 Pansy 242 Papa . 796 Papaver Bhceas . 218 — somniferum . 217 Papaw 449 Pappea 354 Papyrus antiquorum 880 Para Cress 505 Paratudo . 637 Pardanthus chinensis 785 Pareira Brava . 202 Parella 948 Parietaria diffusa 668 — erecta . 668 Parinarium excelsum 388 — laurinum 388 — macrophyllum 388 Paris quadrifolia 857 Parmelia saxatilis 948 Parmentiera eerifera 604 — edulis . 604 Parnassia palustris 403 Parrotia 410 Parsley 469 Parsnip 470 — water . 470 Passerina tinctoria 658 Passiflora quadrangu laris 449 — rubra . 449 Pastinaca oleracea 470 Patchouly . . 622 Paullinia Cururu 354 — pinnata 354 — sorbilis . 354 Pavonia odorata 283 Pea- . 373 PEA PAGE Peacli . . .388 — African . . 488 Pear . . . .387 Pearl-wort. . . 573 Pebrine . . . 962 Pectoral flowers . . 505 Pedalium Mures . 610 Peganum Harmala . 318 Pekan-nut . . .713 Peladero . . .965 Pelargonium acetosum 309 — antidysentericum . 309 — inquinans . . 309 — peltatum . . 309 — triste . . . 309 — zonale . . . 309 Pellitory . . . 668 Peltandra virginica . 838 Peltigera canina . 948 Pemphis acidula . 434 Penicillaria spicata . 891 Penieillinm glaucum . 963 Penjavar Yambi . 902 Pennyroyal . .622 Pepper . . . 731 — Cayenne . .581 — Palse . . .363 — mint . . . 622 — wood . . . 655 Periploca graeca . . 554 Peronospora infestans 962 Perotis latifolia . .891 Persea gratissima . 655 — indica . . . 655 Persica laevis . . 388 — vulgaris . . 388 Persimon . . . 539 Petit Coco . . . 534 Petiveria . . . 630 Petrolium . . .744 Petroselinum sativum 469 Petun . . .581 Peueedamim officinale 470 Peziza cochlcata . 958 Phaeospora . . 983 Phalaris arundinacea. 892 Pharnaceum . . 262 Phaseolus vulgaris . 373 Pbellandrium aquati- cum . . . 470 Philadelphia corona- rius . . . 396 Phillyrea . . .547 Phoenix dactylifera . 819 Phormium tenax . 847 Phragmites communis 891 Phyllanthus . . 698 Phyllodendron . . 839 Physalis Alkekengi . 581 Physic-nut . . 698 Phytelephas . .821 Phytoerene . . 338 Phytolacca acinosa . 630 — decandra . . 630 — dioica . . .■ 630 PLCT PAGE Phytolacca drastica . 630 — esculenta . . 630 — octandra . . 630 Pia(;aba . . . 820 Pichurim Bean . . 655 Picrorhiza Teeta . 588 Picrotoxine . . 202 Pierardia . . . 354 Pignons doux . .744 Pignut . . .713 Pig’s Face . . . 463 Pimpinella Anisum . 470 Pine . . . .743 — apple . . .768 Pinguicula vulgaris . 591 Pinite .• . 743 Pink . . . .259 Pinkneya . . . 488 Pinus Banksiana . 743 — Cembra . .744 — maritima . .744 — Massoniana . .744 — Pinea . . . 744 — sabiniana . .743 — sylvestris . .744 Piper Amalago . . 731 — Betel . . . 731 — churumaya . .731 — citrifolium . . 731 — crocatum . .731 — crystallinum . .731 — Cubeba . .731 — elongatum . .731 — heterophyllum . 731 — longum • . . 731 — methystieum . 731 — nigrum . .731 — rotundifolium . 731 — trioicum . .731 Piperine . . . 731 Piratinera guianensis. 673 Pircunia dioica . . 630 Pisonia . . . 628 Pistachio . . . 363 Pistacia atlantica . 363 — Lentiscus . .363 — Terebinthus . .363 — vera . . . 363 Pistia . . . 839 Pisum sativum . . 373 Planera Abelicea . 677 Plantago arenaria . 625 — Bophula . . 625 — Coronopus . . 625 — cretica . . 232 — lanceolata . . 625 — major . . 625 — media . . 625 — Psyllium . . 625 Plantain . . 625, 765 — Water . . . 801 Platanthera bifolia . 777 Platanus orientalis . 681 Plum . . . 388 — Cocoa .• . . 388 TAGR . 363 . 363 . 528 . 528 . 528 . 528 . 551 . 891 . 891 . 956 x 744 . 744 . 205 . 205 . 622 . 630 . 234 n 564 . 847 . 199 . 199 . 251 . 251 . 857 . 634 . 634 . 634 . 634 . 634 . 634 . 634 . 634 . 634 . 634 . 634 . 635 . 635 a 902 s 955 . 955 . 955 . 964 . 928 . 436 . 867 . 587 . 687 . 218 . 687 . 687 . 687 . 687 . 687 . 983 . 983 . 262 . 581 . 567 . 388 . 388 a 387 IG3 ?AGB 363 363 363 363 399 399 399 890 475 488 698 858 745 387 847 948 956 488 607 387 387 387 387 387 387 426 259 655 232 387 387 373 373 622 979 387 861 488 388 388 318 607 634 635 634 634 634 634 645 865 799 891 961 318 318 890 853 820 820 891 892 506 786 PLANTS MENTIONED FOR THEIR POU QUE PAGE PAGE Pouzolzia