194 XLVII. § PAPILIONACEZ (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, 
1} in. long, bluntish, lateral ones unequal-sided, both sides glabrous. 
Peduntles 13-2 in. long, 2-flowered. 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 1-8 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} in. long, } in. thick, 6—10-seeded, 
glabrous or slightly hairy.—Wight. Ic. t. 94, 
Nile Land. Nubia, Hhrenberg. Abyssinia (teste Schweinfurth). 
Mozamb. Distr. Zambesi land, Dr. Kirk! 
Common in Tropical Asia. 
64. VIGNA, Savi; Benth. et Hook. f. Gen. Plant. i. 589. 
Calyx with the two upper teeth free or connate, the others equal or 
the lowest longer. Standard orbicular, the base appendiculate, with 1- 
flexed auricles ; wings falcate-obovate, rather shorter than the standard ; 
keel equalling the wings, truncate, or beaked at the tip, but the pomt 
not spiral. Upper stamen free, the others connate; anthers uniform. 
Ovary sessile, multiovulate; style filiform, dilated upwards, longitudi- 
nally bearded on the inner ey 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. Burchellit. 
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 ee ke ee ee, eee 
Leaves densely bristly on both sides . . . . . . . . 5. V. heterophylla. 
Upper pair of calyx-teeth free. 
Pedunales 6-S-Howered) 0 a CE Ee 
Peduncles 2—4-flowered. 
Keel truncate at the point. 
Leaves fragile, membranous . . . . . . 
Leaves tough, papyraceous or subcoriaceous. 
Petioles short (always under an inch). i 
Peduncle with a few adpressed grey bristles . . 8. V. andongensis. 
7. V. membranacea, 
