Celaslnii.] xu. CELASTUACRvf: (oijvkk). 361 



Leaves elliptical (to oblanccolatc), serrulate, l^-S in. (Jvaiy 



3-eelled, on a Hesli)' disk -i. C terralui. 



Leaves membranous, ovate to elliptic, 1-3 in., denticulate. 



Ovary free, on raised disk 5. C. fuonymoidrt. 



Slender. Leaves ovate to lanceolate, base rounded, \-\\ in. 



Peduncles filiform, equalling or exceeding the leaves . . . (^. C.mmsambieentit. 

 Leaves elliptic-oblong, \-\\ in. long, \-\ in. broad. Pedun- 

 cles glandular, equalling leaves . . . 1. C. Jtkato. 



Leaves very coriaceous, elliptic or obovate, ^-l^ in., very ob- 

 tuse. Ovary free, on raised disk . 8. C. arbxti/oltut. 



Peduncles simple, usually fascicled. Unarmed. 



Leaves sinuate-serrate or -dentate, elliptical to ohlanceolato, \\-\ 



in., obtiisc. Ovary immersed 0. C. hd^olus. 



Leaves serrulate, elliptical, acute, 3-6 in. Ovary lialf-immersed . 10. C. launfoliut. 

 Leaves serrulate, oblong-oval, obtuse, 2i-5 in. Ovary nearly free 11. C launfolm*. 

 Leaves equally serrate, oval, 1^-2 in. Ovary half-immersed . . 12. C. huUlensu. 



1. C. gracilipes, M^ehc. ms.s. A o:labrous shrub or shrubby tree with 

 purplisli, often armed branches, spiiies slender, straight, leafless,* varyinfr l<) 

 3 in. Leaves rather large, distinctly petiolate, firmly membranous or ratlu-r 

 coriaceous, oblong-elliptical or broadly oval, narrowed to each end, usually 

 acute, occasionally shortly acuminate, serrulate, glabrous, 3-i) in. long, 13 

 in. broad; petiole ^-y in. Peduncles very slender, forking usually above 

 the middle a few times, l|-3 in. long. Flowers small, white, often rather 

 cymosely clustered. Ovary half- immersed in a fleshy adiuite disk, 3-cellcd 

 with a subsessile 3-fid stiguia. Pruit after dehiscence j—\ in. in diam. 



Upper Guinea. Ambas Bay, Gulf of Guinea, Mann ! 

 Lower Guinea. Golungo Alto, Angola, Dr. Welwitsch ! 



2. C. andongensis, OUv. A glabrous shrub of 3-5 ft. with or without 

 axillary spines i-f in. in length. Leaves as in C. seiiegah'u.sis, much nar- 

 rowed, usually from above the middle, to the petiole, dillVring in their being 

 usually acute or broadly pointed, though when fascicled from the axils of a 

 previous year they may be very obtuse ; they are serrulate above but not 

 glaucous or glaucescent, 2-2f in. long, \-\^ in. l)road ; petiole gradually 

 dilating into the lamina. Branching cymes much shorter than the leaves. 

 Ovary free, 3-celled, with a short style equalling the spreading stigmas. 



liOTver Guinea. Pungo Andougo, Angola, Dr. Weltcitsch ! 



3. C. senegalensis. Lam. ; 1)0. Prod. ii. 8. A glabrous, usually 

 glaucous glaucescent or pale green shrub, very variable in size and form of 

 the leaves, from 1-10 15 ft. in height, unarmed or spinose; sjjines short 

 and slender or stout and several inches long, often bearing leaves and flower- 

 cymes towards the apex. Leaves coriaceous, obovate-ellipticaj or oblanceo- 

 late, usually very obtuse or even refuse, occasionally subacute and mucronnle, 

 much narrowed to the petiole, serrulate denticulate or nearly entire, I \ in. 

 long, -1-2 in. broad; petiole 1-2 lines to { in., usually dilating into llie 

 lamina. Cymes axillary, solitary or fascicled, usually shorter than the leaves, 

 forking froni or below the middle, loose and divaricate or rather compart. 

 Ovary broad-based, suiTOunded by a fleshy disk, aj^parently normally 2- 

 celled, occasionally 3-celled, in the ? with* a 2-fitl style with more or less 

 clavate branches. ' Capsule subglobose or obovoid, usually 2-VHlved wilh 



