274 105- LEGUMINOSAE 



248. Ovule I. Petals blue, red, or white ; standard short-clawed ; keel 



curved. Fruit ovate, indehiscent ; pericarp adhering to the seed. 



Gland-dotted plants. Stipules stem-clasping. (See 153.) Psoralea L. 



Ovules 2 or more 249 



249. Ovules 3 or more. Petals nd. Fruit subterete, constricted between 



the seeds, indehiscent. Spinous shrubs. Racemes with the rachis 

 ending in a spme. — Species i. Egypt and Nubia. The resinous 

 exudations (Persian manna) are used for food and in medicine. 



Alhagi Desv. 



Ovules 2. Petals red or yellow ; standard auricled at base. Fruit 



dehiscing by two valves 250 



250. Fruit compressed. Seeds with a linear hilum. (See 239.) Eriosema DC. 

 Fruit turgid. Seeds with a short hilum. — Species 5. Tropical and 



South-east Africa. Used for dveing and in medicine. {Moghania 

 St. Hil.) Flemingia Roxb. 



251. (220.) Leaflets 3. - - 252 



Leaflets 4 or more 330 



252. Leaves digitate 253 



Leaves pinnate 264 



253. Uppermost stamen united with the others into a tube or sheath. Ovules 



numerous. Bracteoles bristle-like 254 



Uppermost stamen free from the others, at least at the base. . . . 257 



254. Filaments united into a closed tube. Seeds with an outgrowth at the 



hilum. Herbs or hairy shrubs 255 



Filaments united into a sheath split above. Seeds without an outgrowth 

 at the hilum. Glabrous undershrubs, shrubs, or trees 256 



255. Calyx-lobes unequal, the upper approaching in pairs. Standard spatulate ; 



wings obliquely ovate. Anthers slightly unequal. Fruit ovate- 

 lanceolate, dehiscing by two valves. Tall shrubs with brownish 

 hairs. Flowers in head-like spikes. (See 175.) 



Phaenohoffmannia O. Ktze. 



Calyx-lobes subequal. Standard ovate or oblong ; wings narrow ; petals 



of the keel scarcely cohering. Fruit linear or lanceolate, dehiscing 



at the upper suture. Decumbent herbs. Flowers very small, solitary 



or in short racemes. — Species i. Central Africa. . . Rothia Pers. 



256. Keel longer than the standard. Fruit ovate-lanceolate, few-seeded. 



Undershrubs. (See 194.) Loddigesia Sims 



Keel shorter than the standard. Fruit linear, many-seeded. Shrubs 



or trees. (See 194.) Hypocalyptus Thunb. 



■zy/. Uppermost stamen united with the others in the middle, at least when 



young 258 



Uppermost stamen free. Bracteoles absent 260 



2;i8. Petals, at least the four lower ones, adnate below to the staminal tube. 

 Fruit not jointed, scarceh^ dehiscent. Herbs. Leaflets usually 



