Oncol/a.] xiii. bixinEjE (oliveu). 115 



Leaves obovate or oblong, rounded at the apex. Stigma- 

 lobes subulate. Fruit circular in section 3. 0. Pelersiana. 



Leaves obovate or oblong. Stigma-lobes minute, spreading. 



Fruit longitudiually furrowed ".4. 0. Teitensis. 



Leaves lanceolate or oblanccolate. Stigma obtuse, nearly or 



quite undivided 6. 0. Kraussiana. 



Leaves more or less pubescent or hairy at first, crcnate-serrate, 

 petioles short. Flowers solitary. Stigma-lobes radiate, 



singly capitate. (Usually with short, slightly curved spines.) 2. 0. brachyanthera. 

 Leaves glabrous. 

 Leaves obovate, shortly petiolate. Fruit ovoid-globose, 



pointed .5. O.Kirkii. 



Leaves elliptical, oval or lanceolate. Stigma peltate, entire 

 or lobed. Fruit globose. (Usually with slender, axillary 



spines.) 1.0. spinosa. 



Leaves lanceolate or oblanceolate ; petioles short. Stigma 



obtuse. Flower usually solitary ........ 6. 0. Kraussiana. 



Leaves oval or elliptical ; petioles 1 in. or more. Flowers 

 3-4 in. diam. Stigma obtuse, scarcely lobed. Fruit 

 globose, usually more or less pointed or cuspidate . . . 1.0. glauca. 

 Leaves large, membranous, ovate, acuminate; petioles 3-5 

 in. Mowers large, in lateral fascicles. Stigma-lobes ra- 

 diate, linear. Fruit echinate 8. 0. Wetwitschii. 



Leaves oval-oblong. Flowers in lateral fascicles on straight, 

 erect peduncles. Stigma obtuse, undivided or minutely 



lobed. Fruit with wavy ridges 10. 0. Inphocarpa. 



blowers small, less than 1 in. d'iam. Fruit echinate . . . . 13. 0. echinata. 

 lowers in axillary or extra-axillary racemes, 

 waves entire or undulate. 

 Flowers about 1 J in. diam. Pedicels 4-8 lines. Anthers very 



shortly pointed. Stigma-lobes 4-5, linear, radiate . . . 9. 0. Mannii. 

 ■Flowers \ in. or less in diam. Pedicels 1-2 lines. Anthers 

 very shortly pointed. Stigma-lobes radiate, obtuse. Fruit 



furrowed 11. 0. ovalis. 



Flowers about i in. diam., in extra-axillary raceme9, shorter 



than petioles. Anthers aristate 12. 0. aristata. 



aves dentate-serrate, membranous. Flowers in loose or inter- 

 rupted axillary racemes. Stigma minute. Fruit small, echinate. 14. 0. dentata. 



1-0. Spinosa, Forsk. ; Rich, in Fl. Seneg. 32. *. 10. A glabrous shrub, 



usually armed with slender, spreading, very acute, axillary spines, sorae- 



imes 2 in. long or more. Young twigs marked with numerous, minute, pale, 



peel-spots. Leaves membranous or rather coriaceous, shortly petiolate, 



'iptical, generally shortly acuminate, serrulate or crenate-serrate (sometimes 



oaoletely) from a little above the wedge-shaped or rounded base, 2-3^ in. 



"?._ ly-2 in. broad. Flowers showy, white, fragrant, about 2 in. across, 



rn nnal or lateral, upon short, axillary shoots. Calyx deeply 4-fid, usually 



Insisting, about half as long as the petals, which appear to be variable in 



mber. Anthers linear, much shorter than the slender filaments, with a mi- 



. ' acut e, triangular tip beyond the cells. Fruit globose, H-2 in. diam. 



s S0 T tlmes more, smooth, with a hard shell, marked with several equidistant, 



rcely prominent, longitudinal lines ; applied to ornamental and other uses 



(L/ natives - — Lundia monacantha, Schum. et Thonn. Guin. PI. 231. 



*™« monacantha, Steud. Nora. Bot, 



Si err !f* er Guinea. Senegambia {Schumacher and Thonning) ; Cape Verde, (Richard) ; 



Wone, Dr. Kirk I Abbeokuta, and Nupe, Niger, Barter I 



I 2 



