172 
FLORA OF ADEN. 
Note: — Jaub. and Spach describe the plant as being sometimes 1 
foot long. It seems, however, that the Aden specimens are stunted and 
much smaller, not exceeding 5 inches. 
5. Indigofera argentea L. Mant. IT, 213 (non Roxb.) ; DC. Prodr. 
II, 221; Boiss. FI. Or. II, 190 ; Hook. FI. Brit. Ind. II, 98 ; Oliv. FI. 
trop. Afr. II, 97 ; A. Terrac. FI. d’ Anfilha p. 23. 
Indigofera glauca Lam. Encvcl. Ill, 246. 
Indigofera articulata Gouan 111. et Observ. p. 49. 
Indigofera coerulea Roxb. FI. Ind. Ill, 337. 
Indigofera tinctoria Forsk. FI. Aeg.-Arab. p. 138. 
Arabic Name : — Houer. 
Description : — A copiously branched shrub, 2-3 feet high. Branches 
deeply sulcate, silky. Leaves 1-2 inches long; petioles inch long; 
stipules minute, subulate. Leaflets 3-7, 1 ^ J l“t i n °h, obovate, 
rounded and apiculate at the apex, argenteo-canescent on both sides, turn- 
ing blackish when dried. 
Flowers in short-peduncle d or subsessile racemes of 10-20 flowers; 
pedicels short, slender. Calyx inch long, silvery-hairy ; teeth triangu- 
lar, acute, rather shorter than the tube. Corolla yellow, f inch long ; 
standard pubescent on the back. 
Pods | inch long, thick, turgid, recurved, shortly mucronate, torulose. 
Seeds 2-4, commonly 3. 
Flowers and fruits in Yemen in January and February, on the south 
coast of Arabia in April (Schweinf.) . 
Locality : — Top of the Shum Shum Range (Schweinf.) ; Goldmore 
Valley (Defl.) ; without locality (Birdw.). 
Distribution: — Egypt, Nubia, Abyssinia, Eritrea, Kordofan, Soco- 
tra, S. Arabia, Sind, W. India. 
fl. Indigofera leptocarpa Hochst. et Steud. in Schimp. PI. Arab, 
n. 731; Balf. Proc. Roy. Soc. Edinb. XI, 510; Bot. of Socotra 74. 
Indigofera tenuisiliqua Schweinf. Bull. Herb. Boiss 1894, App. II, 
241. 
Description : — A low rigid herb, strigose, canescent, much branched. 
Branches with long internodes, wide-patent, decumbent, subfastigiate, 
subcompressed, angular. Leaves £ — T \ inch long, trifoliate, petiolate ; 
petiole j 2 — inch long ; leaflets all sessile, ovate, or elliptic acute, or 
obtlise, rigidly strigose. Stipules J inch long. 
Racemes about 5 inches long, flowers disposed towards the apex, 
pedicels y 1 ^ inch long, bracteoles setiform. Calyx ^ inch long ; lobes 
