156 xlvii. § papilionace^: (baker). [Stylosanihes. 



Stems finely downy. 



Stem erect ; rudimentary floret 5-6 lines long 3. S. flavicans. 



Stem difru.se ; rudimentary floret 2-3 lines long 4. S. mucronata. 



Stems both downy and bristly 5. S. Bojeri. 



1. S. viscosa, Ser. ; DC. Prod. ii. 317. A copiously branched erect 

 shrub, 1-3 ft. high, the branches densely clothed with fine gland-tipped 

 grey hairs. Stipules adnate, ^-§ in. deep, scarious, viscous on the back 

 like the stem, the points rigid, setaceous. Leaflets narrowly oblong or 

 oblanceolate, §— §• in. long, 2 lines broad, glabrous or pubescent on both 

 faces. Spike ovate, dense, few-flowered; bracts \ in. deep, densely 

 bristly on the back and edge. Calyx \ in. deep, the lobes ciliated. Pod 

 with usually only a single articulation, nearly glabrous, the style very 

 short. — Vogel in Linnaea, xii. 66. 



Upper Guinea. Sierra Leone, Don fide Bentham, in EL Nigr. 301. 

 A common Tropical American species. 



2. S. erecta, Pal. Beauv. ; DC. Prod. ii. 317. A copiously branched 

 ascending shrub, sometimes 4—5 ft. high, with the stems glabrous in the 

 lower part but sometimes slightly pubescent upwards. Stipules scarious, 

 glabrous or slightly pubescent, f-| in. deep, adnate to the articulated 

 petiole except the rigid setaceous points. Leaflets oblanceolate, nar- 

 rowed to both ends, |-| in. long, 2-3 lines broad, rigid, prominently 

 veined, often dotted with black beneath, glabrous or slightly pubescent. 

 Flowers in oblong terminal heads and also in the axils of the upper 

 leaves. Bracts imbricated, hiding the flowers, very rigid and promi- 

 nently veined, | in. deep, emarginate with often a leaflet from the 

 notch, usually but not always glabrous on the back, ciliated. Rudi- 

 mentary flower equalling the scarious calyx, 2 lines long. Pod \ in. 

 long, with two articulations, glabrous or finely downy, like the decurved j 

 style. — Guill. et Perr. Fl. Seneg. 204. Vogel in Lannaea, xii. 68. S. 

 guineensis, Schum. et Thonn. PL Guin. 357. Guill. et Perr. Fl. Seneg. 

 205. Ononis coriifolia, Reich, in Sieb. PI. Seneg. No. 37. 



Upper Guinea. Sierra Leone, Afzelius ! Senegambia, Perrottet I Sieber I and 

 others. Guinea proper, Beauvois, Thonning, Vogel I and others. 

 Lower Guinea. Congo and Loanda, Dr. Welwitsch I 



Var. /3. S. acuminata, Welw. mss. 



Leaflets linear-acuminate, 12-15 lines long, casually 5. Petioles, leaves beneath, 

 stipules and bracts on the back furnished with copious black stalked glands. 

 Lower Guinea. Highlands of Pungo Andongo, Dr. Welwitsch 1 



3. S. flavicans, Baker. A copiously branched ascending shrub, the 

 branches densely clothed with short yellowish pubescence. Stipules 

 scarious, finely pubescent on the back, f in. deep, adnate to the petiole, 

 except the long free falcate, setaceous apices. Leaflets oblanceolate, 

 f-J in. long by 2 lines broad, narrowed to both ends, rigid, and pro- 

 minently veined, both sides subglabrous. Flowers in dense oblong 

 terminal heads. Bracts densely imbricated, clothed on the back with 

 pubescence like that of the stem, not bristle-ciliated. Calyx 2 lines 

 deep, the very plumose rudimentary floret more than twice as long. 



