Oncoba] • xn. bixine^e. 39 



Coll. Carp. 135. A bush with orange-yellow fruit ; Sange, March 

 1855. Seeds. Coll. Carp. 224. A bush with virgate branches, leafy 

 at the apex and flowers arising from the thicker leafless branches in 

 a fasciculate manner ; fl. Feb. 1855, fr. May. Native name " Chiche 

 onene." Seeds. Coll. Carp. 225. 



3. 0. dentata Oliv. Fl. Trop. Air. i. p. 119. 



Golungo Alto. — A frondose tree of 15 ft., or usually in secondary 

 thickets a little tree of 10 to 12 ft. ; trunk erect, divaricately branched 

 at the apex ; sepals 3, imbricate in aestivation ; petals 6 to 7, white, 

 hypogynous ; stamens indefinite, inserted at the base of the ovary ; 

 filaments short ; anthers long, linear-oblong, yellow, basifixed, erect, 

 ^-celled ; ovary superior, white-setose ; fruit globular, densely beset 

 with rather soft prickles, with several cells, of the size and shape of the 

 iruit of Ricinus minor Mill., and of a deep orange colour. Sporadic in 

 the primitive woods of Quisucula and at the borders of the forests of 

 Serra de Alta Queta ; fl. 15 Sept. and in Oct., fr. Jan. 1855 and 1856. 

 Native names " Dibixi " or " Chixi " or " Fele." No. 535. A small 

 tree with a dilated crown ; trunk erect, 2 to 4 in. in diam. ; leaves as in 

 0. Welwitschii Oliv., but smaller ; flowers whitish ; fruit bright orange. 

 At the borders of primitive forests near Bango Aquitamba. Fruits. 

 Coll. Carp. 223. 



Ptjngo Andongo. — An arborescent shrub, with several stems from 

 the base, erect ; leaves rather rigidly chartaceous, dentate or repand ; 

 flowers whitish, spreading in a star-like manner. Bather rare in the 

 dense woods of the fortress, in Mata de Pungo ; fl. Dec. 1856. No. 536. 



4. 0. spinidens Hiern, sp. n. 



A small glabrescent tree, more than 10 ft. high; crown lax; 

 branches rather patent, elongate-virgate, terete ; leaves elliptic- 

 oblong or obovate-oblong, acutely acuminate or cuspidate, rather 

 wedge-shaped at the base, rigidly coriaceous, glabrous, very glossy 

 and uniform in colour on both surfaces, spinulose-serrate, 4| to 

 6 in. long, by 1| to 2 in. broad or rather larger ; mid-rib and 

 venation in relief on both surfaces ; petiole | to § in. long, obso- 

 letely puberulous or glabrous, rather thickened and sometimes a 

 little curved near the apex; stipules small, subulate, caducous; 

 inflorescence axillary and subterminal, spicate-racemose, brac- 

 teolate, shortly pedunculate, (in bud) g to f in. long; flower- 

 buds globose, subsessile, puberulous ; sepals and petals together 

 about 17, imbricate, rounded, ciliolate; outermost ones shorter 

 than the middle ones; innermost ones the smallest, obovate, 

 glabrous; stamens about 17 to 20, glabrous; ovary fleshy, gla- 

 brous ; ovules several ; stigma (in the bud) sessile, rather dilated, 

 obscurely angled or trifid ?, concave. 



Pungo Andongo. — In the denser primitive forests, by the river 

 Cuanza, near Candumba ; in young flower-bud Jan. 1857 ; also a 

 sterile specimen in rocky wooded places, near Candumba, in March 

 1857. No. 886. 



With this should be compared 0. Poggei Gurke in Engl. Jahrb. xviii. 

 p. 163 (22 Dec. 1893), a species from the upper Congo country, at 

 Xiulua, gathered by Pogge, n. 571 ; the leaves, however, of the Congo 

 plant show less prominency in the mid-rib and venation, and they do 

 not possess spinulose tips to the serrations. 



