263. Petals, at least the four lower ones, adnate to the staminal tube. Keel blunt. Ovules 2-8. Fruit scarcely dehiscent. (See 138.) =Trifolium= L. Petals free from the staminal tube, red. Keel somewhat pointed, curved. Ovary sessile. Ovules numerous. Fruit dehiscing by two valves. Flowers solitary. (See 153.) =Parochetus= Hamilt. 264. (252.) Leaflets with stipels. [Especially tribe PHASEOLEAE.] 265 Leaflets without stipels. 310 265. Stem herbaceous or woody at the base only. 266 Stem woody throughout. 303 266. Uppermost stamen united with the others from the base. Flowers small, red, in racemes, with the rachis not thickened.--Species 20. Tropical and South-east Africa; one species (_G. hispida_ Maxim., soy-bean) only cultivated. The latter yields edible oily seeds. =Glycine= L. Uppermost stamen free or almost so, or united with the others in the middle only. 267 267. Uppermost stamen, at least when young, free at the base, but united with the others in the middle. 268 Uppermost stamen free from the base or nearly so. 272 268. Flowers in racemes, the rachis of which is thickened at the insertion of the pedicels. Bracteoles present. Wings usually free from the keel. Fruit not jointed, opening in two valves. 269 Flowers in racemes with the rachis not thickened, or in fascicles, or solitary. Wings adhering to the keel. Fruit compressed. 271 269. Fruit 4-angled or 4-winged. Seeds oblong. Stigma villous. Corolla violet. Bracteoles rather large, falling off tardily. Stipules spurred. (See 233.) =Psophocarpus= Neck. Fruit 2-3-angled or 2-winged. Stigma small. Bracteoles small, falling off early. Stipules small. 270 270. Calyx-lobes very unequal, the upper much larger than the lower. Seeds ovate or orbicular.--Species 5. Tropical and South Africa. The seeds of several species are eaten and used for dyeing and in medicine. =Canavalia= Adans. Calyx-lobes not very unequal, the upper united higher up, but not considerably larger than the lower. Seeds oblong.--Species 1. East Africa. =Pueraria= DC. 271. Fruit more or less distinctly jointed. Bracteoles usually present. (See 231.) =Desmodium= Desv. Fruit not jointed, opening by two valves. Stigma usually penicillate. Flowers in terminal or leaf-opposed racemes. Bracteoles wanting. (See 233.) =Tephrosia= Pers. 272. Style hairy above. 273 Style glabrous or hairy at the base only, sometimes with a hairy stigma. 287 273. Flowers solitary or in fascicles or racemes with the rachis not thickened at the insertion of the pedicels. Keel curved. Ovules numerous. Fruit linear. 274 Flowers in racemes, the rachis of which is thickened at the insertion of the pedicels. 277 274. Calyx tubular; upper lobes united high up. Corolla white, blue, or violet; wings oblong, adhering to the much shorter and pointed keel. Ovary stalked. Style broadened above, bearded lengthwise.--Species 5. Tropics. Used as medicinal, dyeing, and ornamental plants. =Clitoria= L.