204 xlvii. § papilionace.e (baker). [ Vigna. 



28. V. triloba, Walp. ; Earv. Fl. Cap. ii. 221. Stems slender, wide- 

 twining glabrous. Stipules lanceolate, \ in., persistent, distinctly 

 spurred. Petioles 1-3 in., slender ; leaflets 3, glabrous, papyraceous, 

 acute, end one ovate-rhomboidal or hastate with short bluntly rounded 

 lateral lobes, 2-3 in. long; petiolule J- in. ; lateral ones unequal-sided, 

 sometimes shortly lohed on the lower side. Flowers 1-2, subsessile at 

 the top of glabrous spreading peduncles 1—4 in. long. Calyx 2 lines, 

 campanulate ; teeth deltoid, shorter than the tube. Corolla bright red, 

 j-J in. long ; keel shortly beaked. Pod linear, terete, 3-3^ in. long, 

 glabrous, recurved. 



Lower Guinea. Loanda and Pungo Andongo, Dr. Welwitsch ! 

 Mozamb. Distr. Between Tctte and the sea coast, Dr. Kirk. 

 Also a plant of the Cape. 



29. V. huillensis, Welw. mss. Stems wide-twining slender glabrous. 

 Stipules deltoid, J in. persistent, distinctly spurred. Petioles f-1 in. ; 

 leaflets 3, acute, subcoriaceous, glabrous with raised veinlets on both 

 sides ; end one linear lanceolate or ovate-rhomboidal, 2-3 in. long ; 

 petiolule 3-4 lines ; lateral ones often unequal-sided. Flowers 1-3 

 sessile at the point of flexuose glabrous peduncles 1-1 \ in. long. Calyx 

 f in., glabrous, rugose-plicate, clasped by a pair of subpersistent round 

 bracteoles at the base ; teeth deltoid shorter than the tube. Corolla 

 light rose-violet above an inch deep ; keel with a prolonged recurved 

 beak. Pod linear glabrous nearly straight, not seen mature. 



Lower Guinea. Highlands of Huilla, 4000-5000 feet, Dr. Welwitsch! 



30. V. nilotica, Hook.f. Fl. Nigr. 311. Stems twining, subglabrous. 

 Stipules lanceolate, 3-4 lines long. Petioles 1-2 in. long, glabrous ; 

 leaflets 3, central one ovate-rhomboidal or slightly hastate, 2-3 in. 

 long, pointed, the base broad-cuneate ; petiolule J-f in. long ; lateral 

 ones unequal-sided, both sides glabrous. Flowers 4-8 in close racemes 

 on peduncles 3-5 in. long. Bracteoles small blunt. Pedicel very short, 

 glabrous. Calyx campanulate, glabrous, \ in. deep ; teeth deltoid, 

 reaching a third down, the two upper ones connate. Corolla yellowish- 

 green, g-j in. deep. Pods 2-3 in. long, \ in. broad, pendulous,' sub- 

 compressed, slightly curved, glabrous, slightly torulose, '6-8-seeded. — 

 Dolichos niloticus, Delile, DC. Prod. ii. 399. D. sinensis, Forsk. not 

 Linn. 



Upper Guinea. Senegambia, Perrottet. 



Nile Land. Nubia, Kotschy ! Petherick! Abyssinia, Schimper ! Banks of the 

 Mgeta, 7° S. lat., 38° E. long., Speke and Grant! 

 Mozamb. Distr. Zambesi land, Dr. Kirk! 



Known principally or entirely under cultivation, and very doubtfully distinct from 

 V. luteola. 



31. V. sinensis, Endl. ; Hassk. PI. Bar. Jav. 386. Stems annual, 

 twining, subglabrous. Stipules ovate-lanceolate, subpeltate, 4-6 lines 

 deep. Petioles 2-6 in. long, glabrous; leaflets 3, central one roundish 

 or ovate, 3— 6 in. long, acute, the base rounded; petiolule 1-2 in. long, 

 lateral ones often unequal- sided, both sides glabrous. Flowers in 6-12- 



