194 ILLUSTRATIONS OF INDIAN BOTANY. 
irregular, for the most part racemose, large and handsome; the pedicels often furnished wit , 
bracteoles, na 4 
Calyx free, generally 5-cleft, imbricated in estivation. Torus expanded, adnate to the cup 
of the calyx, terminating in a perigynous ring. Corolla more or less irregular, sometimes | 
papilionaceous, more frequently the petals are free, expanding, or somewhat rosaceous, occasionally 
wanting, estivation irregularly imbricative. Stamens more or less unequal, always perigynous; a 
filaments rarely united. Ovary solitary, with several ovules. Legumes I, or several, seeaed, 
dehiscent, or rarely indehiscent, often transversely divided by cellular partitions, more rarely, 
by firm chartaceous lamine ( Cathartocarpus.) Seed usually compressed, sometimes horizon- 
tal, that is, with the edges not the sides of the cotyledons opposed to the valves, sometimes 
covered with pulp. Albumen usually wanting, but in Cathartocarpus copious, enclosing folia- 
ceous cotyledons. Embryo straight, cotyledons usually large, plumule conspicuous, ‘e 
; hough for convenience, I have adopted this as a sub-order; it seems clear, from the com: 
plexity of structure observable among its genera, that it can scarcely as it now stands be admit. 
ted as such, since the only constant point of difference between it and Papilionaceae rests in 
its straight not curved embryo. ‘he indehiscent cylindrical legumes, firm transverse parti- 
tions, and albuminous seed of the first section of Cassia ( Cathartocarpus ) point that out as 
a good genus, though it is to be wished it had a more euphonious name. ‘This sub-order is — 
divided into three tribes Geoffreae, Cassieae and Detarieae. 
Tribe 8. Grorerea—Corolla papilionaceous or nearly so, stamens monadelphous or dia- 
delphous, perigynous. er 
is tribe only one Indian genus belongs, namely, Arachis, which, with the exception — 
orol 
hers » of either character. A few examples mus 
two first classes—which however I take indiscriminately without attempt 
suffice ts 
a eS 
eee Fi eruvian bark, and as an exceller 
ig aavalnivel: ot agree with the stomach. Caesalpinea St , 
WS extensively exported from this country ag a dye wocd. pma- 
en corte ce, 1s employed for similar purposes, and i 
a 
erana is a genus much more remarkable for ee 
