2^6 105- LEGUMINOSAE 



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 dj^'eing and in medicine. 



Canavalia Adans. 

 Calyx-lobes not very unequal, the upper united higher up, but not con- 

 siderably larger than the lower. Seeds oblong. — Species i. East 

 Africa Pueraria DC. 



271. Fruit more or less distinctlj^ 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. 

 Calyx campanulate. Wings obovate. Ovary almost sessile. . . . 275 



275. Upper calyx-teeth united to the middle. Corolla red or violet ; standard 



equalling the wings, spurred or gibbous on the back ; keel not beaked. 

 Style-apex broadened, hairy round the stigma. Fruit flat. Seeds 

 without an outgrowth at the hilum. Climbing herbs. — Species i. 

 Naturalized in West Africa. Used as a medicinal and ornamental 

 plant. {Bradhurya Rafin., under Clitoria L.) . . Centrosema DC. 

 Upper calyx-teeth united v/holly or for the greatest part. Standard 

 not spurred at the back, but auricled at the base. Style-apex slightly 

 or not thickened. Fruit more or less inflated. Seeds with an out- 

 growth near the hilum 276 



