.] xlvii. § papilionace^: (baker). 143 



late cuspidate. Petioles £-f in. long, articulated at the apex, glabrous. 

 Leaves simple, ovate acuminate, 3-4 in. long, when full grown, by H-2 

 in. broad, both sides glabrous, the upper one dark green, veins slightly 

 prominent. Flowers 1-4, laxly racemose, on a peduncle about half an 

 inch long from the axils of the leaves. Bracts lanceolate, small. Pe- 

 dicels slender, glabrous, about equalling the glabrous calyx, which is 

 2 lines deep, the lower teeth lanceolate, reaching about halfway down, 

 the two upper ones shorter .and subconnate. Corolla rose-coloured, 

 twice as long as the calyx, deciduous. Pod 2 in. or more long, with 

 2-4 articulations, which are j in. long by \ in. broad, narrowed to both 

 ends, the lowest distinctly stalked, polished, olive-grey, with prominent 

 longitudinal lines and a few scattered papillae. 



Upper Guinea. Guinea proper, Beauvois, Vogel! and others. Senegambia, 

 Heudelot I 



2. O. sennoides, DC. Prod. ii. 315. A much branched shrub, 4-6 

 ft. high, with glabrous terete branches. Stipules small, spreading, lan- 

 ceolate acuminate. Petiole £-§ in. long, glabrous or glandular. Rachis 

 2-3 in. long, leaflets 13-17, oblanceolate, f-1 in. long, £-g in. broad, 

 the apex rounded and mucronate, short-stalked and very deciduous, 

 under surface subglaucous. Flowers in lax axillary 3-6-ftowered ra- 

 cemes, which are shorter than the leaves. Bracteoles small, lanceolate, 

 scarious. Pedicels •£-§ in. long, slender, glabrous or slightly glandular. 

 Calyx J in. deep, campanulate, the lower teeth lanceolate, reaching 

 halfway down, the two upper ones subconnate. Corolla yellow, with 

 reddish striae, twice as long as the calyx, deciduous. Pod distinctly 

 stalked, pointed, with 2-6 articulations, which are J- J in. long, \ in. 

 broad, glabrous. — 0. coronilloides, G. Don, Gard. Diet. ii. 279. Rathkea 

 glabra, Schum. et Thonn. PI. Guin. 355. JEschynomene coluteoides, A. 

 Rich. Sert. Astrol. 87 t. 32. 



Upper Guinea. Guinea proper, Thonning. Sierra Leone, Afzelivs! Dr. Mac- 

 William! Island of St. Thomas, G. Don! 



Lower Guinea. Golungo Alto, Casengo and Loanda, Dr. Welwitsch ! 



Extends through Tropical Asia to Australia. The ordinary- Indian form has the pod 

 glandulose-muricated on the faces, but we have the African form from Ceylon, Loo Choo 

 isles, Siam, and North Australia. 



3. O. bibracteatum, Baker. A shrub or tree with thick, woody, 

 grey terete branches. Stipules \ in. deep, lanceolate, scarious, con- 

 spicuously veined. Leaves crowded, subsessile, the rachis 2-3 in. long, 

 the leaflets in 6-8 pairs and a terminal one, oblong, J-f in. long by 

 less than half as broad, the apex rounded and mucronate, texture firm, 

 rachis and under surface thinly silky, only the midrib prominent. 

 Flowers crowded on the woody twigs, solitary or in pairs. Pedicels 

 slender, erect, grey-silky, with a pair of opposite spreading ovate- 

 lanceolate bracteoles below the calyx and sometimes others lower down. 

 Calyx campanulate, becoming submembranous, brownish and silkv, 

 J-f in. deep, the upper teeth oblong-deltoid and blunt, reaching nearly 

 halfway down, the lowest longer and more pointed. Corolla reddish. 



