Oncuda.] xiii. bixinea: (ulivek). 117 



cuspidate, rather coriaceous leaves, somewhat shiiiinp: above, 3 to nearly 6 in. 

 long, 1-|~3 in. broad above the middle ; petioles 2 lines to 1 in. long. Flowers 

 about 1^ in. diam., on short lateral peduncles. Anthers linear. Fruit ovoid, 

 terete, glabrous, slightly rough, shortly pointed. 



Perhaps a variety- of 0. Petersiana. 



Mozamb. Distr. Rovuma Bay, lat. 10° S., Br. Kirk! 



*6. O. Kraussiana, Planch, in Harv. and Sond. Tl. Cap. i. G6. Shrub 

 or small tree, 10-15 ft. high, with young leaves and shoots slightly pubes- 

 cent. Leaves petiolate, firmly membranous, oblanceolate, obtuse or rather 

 acute, glabrescent, 2-2^ in. long, f- 1 in. broad. Peduncles axillary, 1 \-% 

 in. Flowers solitary or 2 or 3 together, about 2 in. diam. Calyx 3-lobed, 

 pubescent. Anthers linear. Stigma obtuse, scarcely divided. 1 have not 

 seen the fruit. — Harvey, Thes. Cap. t. 141. 



Natal ! 



Likely to occur north of the tropic. 



7. O. glauca, Hook.f. Fl. Nigrit. 220. A glabrous tree or shrub, with 

 oval or elliptical, entire or slightly undulate, firmly membranous, acuminate 

 leaves, glaucous above, 3-6 in. long, ly-3 in. broad. Petals 1-2^- in. 

 Flowers very large, white and show^y, 3-4 in. diam., on axillary pedimeh's 

 about 2 in. long, usually clustered towards the extremities of the branches. 

 Calyx glabrous, 3-lobed, deciduous; lobes rounded. Petals about 12, 2-3 

 times longer than the sepals. Anthers linear. Style rather long. Stigma 

 obtuse, denticulate. F'ruit ovoid or nearly globose, about the size of a hen's 

 e^g, smooth, marked with longitudinal grooves when dry. — P. de Beauv. 

 n. Ow. et Ben. 30. t. 17 (the colour of the fiower and cross section of the 

 ovary are purely imaginary). 



Upper Guinea. Lagos, Barter ! Ambas Bay, Mann I Fernando Po, T. Vogel and 



Maym ! 



8. O. Welwitschii, Oliv. A small tree or shrub of 12-15 ft., with 

 numerous long, glabrescent or puberulous branches, bearing large, ovate, 

 acuminate, slightly undulate, membranous leaves, 6-9 in. long, 3-7 in. broad, 

 with broadly rounded, almost truncate bases, clustered towards the extremi- 

 ties. Petioles 3-5 in. long. Flowers large, reddish-white or yellow, 3-4 

 in. diam., in lateral fascicles of 2 to 5 from the axils of fallen leaves on the 

 shoots of a previous year. Stipules siibulate-aristate, ^-1 in. long. Pe- 

 duncles f-1 in. Calyx 3-partite. Petals about 10, dilated above, about 

 twice as long as the sepals. Anthers linear, much shorter than the capillary 

 filaments. Ovary rough, with about 5-6 placentas and as many radiating, 

 linear, stigmatic lobes at first obtuse or capitate, terminating the long slender 

 style. Fruit densely echinate with long rather weak spines, sei)arating 

 when ripe into as many more or less recurved valves as there are placentas. 

 The style and stigmas harden and persist a considerable time. — Linn. Trans, 

 xxvii. (ined.) t. 3. 



Lower Guinea. Angola, distr. Golungo Alto, flowering in February, Dr. WeUitsch ! 



9. O. Mannii, Oliv. A glabrous tree, 25 to 50 ft. high, with large, 



