Indigofera. | XLVII. § PAPILIONACEH (BAKER). 73 
branches. Stipules small, setaceous. Leaves simple, linear, subsessile, 
2-4 in. long, } in. broad, narrowed from the centre to both ends, 
texture firm, both sides thinly silky. Flowers in lax sessile racemes of 
6-12 flowers each, which are considerably shorter than the leaves. 
Bracts linear, half as long as the tubular silky calyx, which is under 
¢in. long, the teeth setaceous, subequal, reaching three-quarters of 
the way down. Corolla reddish, slightly exceeding the calyx. Pod 
straight, linear, 1$-2 in. long, 2 lines broad, compressed, with thick- 
ened sutures, 12—15-seeded.—Z. simplicifolia, Guill. et Perr. Fl. Seneg. 
173, non Lamarck. 
Upper Guinea. Senegambia, Perrottet! Guinea proper, Vogel! Barter! 
13. I. erythrogramma, Welm. mss. A diffuse annual or biennial 
with copiously branched stems a foot or less long clothed with short 
spreading grey pubescence. Stipules 2-4 lines, lanceolate acuminate 
persistent. Petiole 1-2 lines, densely grey-downy. Leaves oblong 
or lanceolate, reaching 2-3 in. long, 6-8 lines broad, acute or sub- 
acute, slightly rounded or narrowed at the base, both sides finely grey- 
uspid, upper dull green, lower glaucous, with the purplish parallel 
crecto-patent main veins distinctly marked. Flowers 2-8 together in 
Copious short-peduncled axillary racemes. Pedicels }—1 line. Calyx 
l line, densely grey-hispid, the linear-setaceous teeth exceeding the 
tube. Corolla bright red. Pod linear, 5-6 lines long, 3 line broad, 
finely grey-downy, 8—10-seeded. 
Lower Guinea. Huilla, Loanda, and Pungo Andongo, Angola, Dr. Welwitsch! 
14. I, flavicans, Baker. Stem herbaceous, subterete, densely 
clothed with spreading or deflexed yellowish-grey silky hairs. Stipules 
linear-falcate, silky, }-2 in. long. Petioles $ in. long, densely silky. 
faves simple oblong, 14-1? in. long, half as broad, the two ends 
nearly satink thick and both sides soft with a coating of dense grey 
silky pubescence. Flowers in rather lax axillary racemes of 15-20 
each, 14 in, long on peduncles less than half their length. Young 
heads plumose. Pedicels very short. Calyx silky, 2 lines long, the 
teeth setaceous, subequal, reaching down nearly to the base. Corolla 
not half as long again as the calyx, the standard round, } in. broad, 
the wings subspathulate, the keel shorter. Ovary linear, multiovulate. 
od unknown, 
South Central. In the interior, near the Tropic of Capricorn, Baines ! 
15. I. Knoblecheri, Kotschy in Sitzungsh. Wien. Acad. 1864, 362. 
Stem sutfruticose, the branches and leaves clothed with adpressed grey 
‘urs, Stipules linear, 2-3 lines. Leaves short-stalked, simple, lan- 
ceolate or oblanceolate, reaching 2-3 in. long, 3—4 lines broad, acute, 
arrowed to both ends, chartaceous, both sides scabrous with adpressed 
hairs. Racemes closely 20-30-flowered on peduncles which exceed 
the leaves. Pedicels 1° line. Calyx } in., scabrous, the linear teeth 
*xceeding the tube. Corolla bright red, twice the calyx. Pod linear, 
