200 xlvii. § papilionace^ (baker). [Vigna. 



America. By the recurved point of the keel, spp, 11-14 recede from typical Vigna in the 

 direction of Phaseolus. A plant from Zambesi land, gathered by Dr. Kirk, with more 

 coriaceous leaves and more densely hispid leaflets, calyx and pod, is perhaps distinct. 



Var. /3. V. Thonningii, Hook. f. FI. Nigr. 311. Stem trailing. Petioles f-14 in. 

 Leaflets broader and snorter, the end one ovate or obovate, 2-3 in. long. Calyx less 

 hairy, less than half as long as the corolla. 



Upper Guinea. Cape Coast and Fernando Po, Vogell 



A trailing coast form. 



Lower Guinea. Mossamedes, Dr. Welwitsch ! 



Var. y . V. angustifolia, Hook. Fl. Nigr. loc. cit. Whole plant subglabrous ; leaflets 

 lanceolate, much smaller ; the end one 2-3 in. long, \-\ in. broad ; flowers smaller ; 

 calyx subglabrous. 



Upper Guinea. Guinea proper, Thonning, Barter I 



14. V. phaseoloides, Baker. Stems slender herbaceous wide- 

 climbing- clothed with soft short pubescence. Petioles short ; leaflets 3, 

 subscabrous above with inconspicuous bristles, pale green and finely 

 downy all over below j end one obovate acute 3-3J in. long ; lateral 

 ones very unequal-sided. Flowers 2-4, subsessile on the apex of a 

 downy peduncle 1-4 in. long. Calyx f in., finely downy ; teeth lan- 

 ceolate acuminate as long as the tube. Corolla 1 in., reddish -purple, 

 veined ; keel with a long recurved beak. Pod linear, 4-4J in. long, 

 nearly straight, finely downy. 



Lower Guinea. Pungo Andongo, Dr. Welwitsch! 



Differs from V. vexillata principally in the texture of the leaves and nature of the 

 pubescence. 



15. V. hastifolia, Baker. Stem firm -herbaceous, twining, per- 

 manently clothed with fine short white pubescence. Stipules minute, 

 lanceolate, silky. Petioles firm, 1-3 in. long. Leaflets 3, the central 

 one hastate, bluntly lobed halfway down from the edge to the midrib, 

 the point blunt, the base subcuneate, its petiolule 4-12 lines long, the 

 lateral ones usually similarly lobed. on the lower side only, texture sub- 

 coriaceous, the upper side thinly and the lower densely clothed with 

 adpressed white cottony hairs. Flowers (always ?) solitary on lateral 

 pedicels 3-4 lines long. Calyx campariulate, 4 lines deep, densely silky, 

 the blunt subdeltoid lobes not reaching half down. Flowers, pale yellow, 

 turning yellow as they fade, very fragrant, 8-9 lines deep, and standard 

 8-9 lines broad. Pod linear, flattened, 4-5 in. long, 3-4 lines broad, 

 persistently clothed with adpressed white-silky hairs, 12-15-seeded. 



Upper Guinea. Nupe, and Jeba, Barter ! 



This may be Dolichos argenteus, Willd., DC, Prod. ii. 399, a Guinea plant which we 

 are not able to identify more certainly. 



16. V. holosericea, Welw. mss. Stems wide-twining, densely 

 clothed with soft spreading whitish tomentum. Stipules minute lan- 

 ceolate not spurred. Petioles 1-2 in., densely pubescent ; leaflets 3, 

 rather thick, soft, matted especially below with grey tomentum ; end 

 one oblong-rhomboidal, 2-3 in. long, rounded at the base, blunt with a 

 mucro; petiolule 3- 4 lines ; lateral ones unequal-sided. Flowers soli- 

 tary on densely pubescent peduncles J-2 J in. long. Calyx J in., densely 



