78 XLVII. § PAPILIONACEE (BAKER). [ Indigofera. 
mucronate, §—2 in. long, 4 in. thick, straight, nearly terete, densely 
coated with strong stalked brownish-black glands, 5- or 6-seeded. 
Wile Land. Abyssinia, Dr. Roth! 
28. I. trichopoda, Lepr. in Guill. et Perr. Fl. Seneg. 177 t. 47. 
Stem herbaceous or slightly shrubby, 1-3 ft. high, erect, copiously 
branched, the branches slender, terete, finely downy. Stipules minute, 
linear. Petioles 1-2 in. long, erecto-patent. Leatlets 7-9, obovate, 
}-2 in. long by about half as broad, the apex rounded and mucronate, 
the lateral ones opposite and short-stalked, both sides thinly silky. 
Flowers solitary, axillary, on slender rigid, erecto-patent pedicels 1-1} 
or 2in. long. Calyx silky, a line deep, cut down nearly to the base, 
the teeth linear-lanceolate. Corolla purplish, scarcely exceeding the 
calyx. Pod sessile, oblong, mucronate, } in. long, 1 line broad, thinly 
silky, 2- or 3-seeded. 
Upper Guinea. Senegambia, Perrottet! Heudelot! Bidjem! 
29. I. nigricans, Vahl; DC. Prod. ii. 23? Stem suffruticose, 4 
foot or more high, firm, erect, the branches spreading or erecto-patent, 
densely clothed with erecto-patent silvery pubescence with a tnge 
of brown. Stipules linear, spreading. Leaves of the main stem 
with 2-3 pairs of leaflets and a terminal one, of the branchlets 3-folio- 
late or simple, all obovate-oblong, 1 in. long, the apex rounded and 
conspicuously mucronate, lateral ones opposite, short-stalked, texture 
firm, both sides grey-green, densely cat permanently coated with 
adpressed silvery pubescence. Flowers solitary from the axils of the 
simple or the lower ones of the trifoliolate leaves, on slender spreading 
rigid bright-coloured pedicels half an inch long. Calyx } in. deep, 
densely silky, the teeth reaching down nearly to the base, lanceolate 
acuminate or cuspidate, half a line broad. Corolla reddish, equalling 
the calyx. Ovary linear-oblong, densely silky. Pod unknown. 
Upper Guinea. Banks of the Niger, Dr. Baikie! 
A very distinct and well-marked plant. 
30. I. nigritana, Hook. f. Fl. Nigr. 294. Stem 2-3 ft. high, her- 
baceous, erect, paniculately branched, the branches slender, glabrous, 
erecto-patent. Stipules minute, linear, deciduous. Leaflets 5-7, 
oblanceolate, the terminal one 3—} in. long by 2 lines broad, the ape* 
rounded and mucronate, the lateral ones smaller, distant, opposite, 
the upper side subglabrous, the lower thinly silky. Flowers solitary, 
on filiform pedicels 4? in. long from the axils of the simple leaves ° 
the branches. Calyx 1 line deep, clothed with bright brown silky 
pubescence, the teeth lanceolate acuminate, reaching three-quarters ° 
the way down. Corolla reddish, twice as long as the calyx, silky oD 
the outside. Pod 2 lines long, 1 line broad, oblong mucronate, thinly 
silky, 2-seeded. 
Upper Guinea. Banks of the Quorra, Vogel! 
