Indigofera.] xlvii. § papilionaceje (baker). 77 



Upper Guinea. Senegambia, Perrottetf Heudelotl Ingram! Guinea proper, 

 Thonning. Barter! and others. 

 Nile Land. Sennaar, Kotschy! 

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



25. I. bracteolata, DC Prod. ii. 223. Stems suffruticose, 1-2 ft. 

 long*, copiously branched, trailing- or suberect, the branches firm, 

 slender, subterete, thinly clothed with fine spreading* pubescence. Sti- 

 pules linear, deciduous. Petioles very short. Leaves of the main 

 branches with one or two pairs of leaflets and a terminal one, those of 

 the branchlets simple, all obovate or ovate-oblong-, 2-3 lines long, apex 

 rounded and mucronate, the lateral ones distant and opposite, both 

 sides gTey-g-reen and permanently clothed with adpressed silvery hairs. 

 Flowers racemose on the branchlets 1 with a bract like a leaflet from the 

 base of each. Pedicels equalling- the calyx. Calyx 1 line deep, silky, 

 the teeth linear-lanceolate, reaching- down nearly to the base. Corolla 

 reddish, scarcely exceeding the calyx. Pod scarcely exceeding the 

 calyx, oblong mucronate, 1- or 2-seeded. 



Upper Guinea. Senegambia, Perrottet! Heudelot! Guinea, Vogel! Barter! 

 Nile Land. Nubia, Kotschy! More densely silvery than the Western speci- 

 mens, and leaves sometimes nearly round. 



26. I. spinosa, Forsk. ; DC. Prod. ii. 232. A copiously branched 

 stiff shrub with erecto-patent terete slightly argenteous woody 

 branches and copious sharp rigid slender spines 1-1| in. long. Stipules 

 minute, setaceous. Petiole silvery, a line long. Leaves simple or 

 digitately trifoliolate. Leaflets 3 lines long, obovate, mucronate, firm, 

 both sides permanently silvery. Flowers solitary from the spines, 1-0 

 from each on short slender pedicels. Calyx campanulate, silverv, 

 more than J line deep, the teeth lanceolate acuminate, reaching half 

 way down. Bracts minute setaceous. Corolla more than twice as 

 long as the calyx, reddish, silky on the outside. Pod linear-mucronate, 

 J in. long, a line broad, argenteous when young*, subtorulose, spreading, 

 6-9-seeded. — Jaub. et Spach. Illust. PI. Orient, t. 490-1. /. spini/tora, 

 Hochst. et Steud. in Schimp. PI. Arab. No. 945. 



Nile Land. Nubia, Ehrenberg. Abyssinia, Schimper. Petit! 

 Also a plant of Egypt and Arabia. 



27. I. Rothii, Baker. A copiously branched woody shrub with 

 erecto-patent terete slightly argenteous woody branches and copious 

 sharp erecto-patent spines often 1£ in. long. Stipules linear. Leaf- 

 lets 5-7, oblong or obovate, J-| in. long, mucronate, the lateral 

 ones opposite, subsessile, texture firm, both sides grey and thinly 

 silvery. Flowers from the spines, solitary or 2-4 near together on 

 cernuous strong silvery pedicels a line long. Calyx silvery, 2 lines 

 deep, the teeth linear, reaching more than halfway down. Corolla 

 silky externally, twice as long as the calyx, considerably larger than 

 the average of the genus, the standard £ in. broad. Pod linear 



