Canthium] LXIX, RUBIACEA. 479 
annular, fleshy; ovary 2-celled; ovules solitary, pendulous ; 
ovules thick ; style far exserted, glabrous, rather exceeding } in. 
long, slender ; stigma rather thick, mitriform, cleft at the apex 
into two ovoid little lobes; fruit (unripe) pea-shaped with the 
calyx-limb distant from the apex or usually sub-didymous with the 
persistent calyx-limb or its remains central at the apex, glabrate, 
3 in. long, 2- or 1-celled. 
Occasionally the plant is heterophyllous, with some smaller 
cordiform leaves in addition to the ordinary ones. 
GoLunco ALTO.—At the borders of primitive forests along the banks 
of the river Cuango ; fl. and unripe fr. middle of Dec. 1855. Native 
name “‘ Molemba N-Gongo.” No. 3153. In the dense forests of Alto 
Queta, sporadic; fl. and fr. Aug. 1855. Also behind Cacarambola ; 
fl. and fr. 1 Sept. Native name ‘ Molamgela-n-gombe.” No. 3154. 
Branch with foliage only. No. 3155. At the borders of the primitive 
forest as a tree, in secondary woods as a bush; at N-delle in Queta 
Ne ; fl. and fr. May 1856. Native name “‘ Mulanguel-engombe.” 
o. i 
The same native name is used for C. Welwitschii Hiern ; No. 3148. 
Another native name, apparently for both, is “ Muhunga-Hunga.” 
14. C. umbrosum Hiern, sp. n. 
A small bushy tree, with spreading thick sub-terete glabrate 
opposite branches and a broad shady head; branchlets shortly 
hispid-tomentose, somewhat compressed, leaves opposite, broadly 
ovate or oval, cuspidate or subacuminate at the apex, unequally 
obtuse or nearly rounded at the base, thickly membranous, dark- 
green and nearly glabrescent above, paler-green and more or less 
tomentellous or shortly hispid-tomentose especially along the 
veins beneath, about 24 to 3 in. long and broad or probably 
larger ; lateral veins 6 to 10 on each side of the midrib, slender ; 
petiole 7 to 3% in. long, shortly hispid-tomentose; stipules from 
a broad ovate base subulate, deciduous; flower-buds pentamerous, 
numerous, in densely crowded, axillary and sub-terminal, sub- 
globose, shortly pedunculate cymes, subsessile; ovary 2-celled ; 
ovules solitary in the cells, pendulous. 
Huvitia.—In forests composed of Parinari near Lopollo ; fi-bud 
Dec. 1859. No. 2576. 
Apparently nearly related to C. crasswm. 
15. C. platyphyllum Hiern, sp. n. 
A robust, hard, very rigid, dense shrub, 3 to 6 ft. high ; 
branches tortuous, ferruginous, glabrate, sub-terete ; branchlets 
woolly-hairy at the extremities, densely leafy; leaves opposite, 
large, obovate-oblong, rounded or sub-cuspidate at the apex, more 
or less wedge-shaped at the base, thinly coriaceous, very dark- 
green and scattered with short curly tawny hairs above especially 
along the midrib and 8 to 10 pairs of lateral veins, more 
densely hairy and pale-tawny beneath, 2 to 6 in. long by 1 to 
22 in. broad ; petiole 4 to 7 in. long, rather thick, hairy ; stipules 
lanceolate-subulate from a broad’ base, hairy, deciduous, about 
4 to Zin, long ; inflorescence axillary or lateral on the branchlets, 
