194 xlvii. § papilionace2E (baker). [Phaseolus* 



6. P. Kirkii, Baker. Stems herbaceous, wide-twining, slender, 

 slightly grey-silky when young. Stipules minute, not peltate. Petioles 

 under an inch long, herbaceous, glabrous ; leaflets 3, central one ovate, 

 \\ in. long, bluntish, lateral ones unequal-sided, both sides glabrous. 

 Peduncles 1 j— 2 in. long, 2-flowere.d. Calyx campanulate, 2 lines deep, 

 slightly hairy, the upper teeth short, deltoid, the lowest narrower, and 

 reaching a quarter of the way down. Corolla rose-coloured, half an 

 inch deep. Pod 4 in. long, \ in. thick, terete, straight, glabrous. 



Mozamb. Distr. West shore of Lake Nyassa, Dr. Kirk ! 



7. P. trilobus, Ait. ; DC. Prod. ii. 394. Stems slender, herbaceous 

 diffuse, subglabrous. Stipules \~\ in. long, lanceolate-oblong, subpel- 

 tate. Petioles 1-3 in. long, subglabrous ; leaflets 3, central one deeply 

 hastate, 1-2 in. each way, the middle square or spathulate, blunt or cus- 

 pidate, base broadly cuneate, lateral ones very unequal-sided, both sides 

 subglabrous. Flowers 2-4 on peduncles *3-6 in. long. Bracts linear. 

 Pedicels glabrous equalling the calyx, which is broadly campanulate, a 

 line deep, the teeth very short, deltoid. Corolla reddish, half an inch 

 deep. Pod terete, curved, 1-1 J in. long, \ in. thick, 6-10-seeded, 

 glabrous or slightly hairy. — Wight. Ic. t. 94. 



Nile Land. Nubia, Ehrenberg. Abyssinia {teste Schweinfurth). 

 Mozamb. Distr. Zambesi land, Dr. Kirk! 

 Common in Tropical Asia. 



64. VIGNA, Savi ; Benth. et Hook. f. Gen. Plant, i. 539. 



Calyx with the two upper teeth free or connate, the others equal or 

 the lowest longer. Standard orbicular, the base appendiculate, with in- 

 flexed auricles ; wings falcate-obovate, rather shorter than the standard ; 

 keel equalling the wings, truncate, or beaked at the tip, but the point 

 not spiral. Upper stamen free, the others connate ; anthers uniform. 

 Ovary sessile, multiovulate ; style filiform, dilated upwards, longitudi- 

 nally bearded on the inner side upwards ; stigma very oblique. Pod 

 linear, straight or recurved, subterete, two-valved, filled within between 

 the seeds. — Climbing herbs with pinnately trifoliolate leaves. 



A genus widely dispersed through the warmer regions of both hemispheres, attaining 

 its maximum with us. 



* Calyx-teeth lanceolate or linear, equalling or exceeding the tube. 

 Stems from a shrubby base. 

 Leaves glaucous green, glabrous on both sides . . . . . 1 . V. Burchellii. 



Leaves grey -tomentose on both sides 2. V. frutescens. 



A suberect low annual 3. V. lancifolia. 



Herbaceous twiners. 



Upper pair of calyx-teeth connate. 



Leaves subglabrous . . 4. V. oblongifolia. 



Leaves densely bristly on both sides ' . . 5. V. heterophylla. 



Upper pair of calyx-teeth free. 



Peduncles 6-8 -flowered . . 6. V. crinita. 



Peduncles 2-4-flow&red. 

 Keel truncate at the point. 



Leaves fragile, membranous 7. V. membranacea. 



Leaves tough, papyraceous or subcoriaceous. 

 Petioles short (always, under an inch). 

 Peduncle with a few adpressed grey bristles . . 8. V. andongensis. 



