476 LXix. RUBIACE^. \Canthium 



spreading at the time of the flower, i-ather fleshy, soon turning 

 ferruginous- fuscous ; stamens glabrous, 5, inserted on the throat 

 of the corolla, alternating with the lobes ; filaments shorter than 

 the anthers ; anthers sagittate-lanceolate, 2-celled, dehiscing 

 longitudinally, of a cinnamon colour even in the bud ; disk 

 annular, fleshy, glabroi;s ; ovary 2-celled, ovules solitary in the 

 cells, pendulous ; style glabrous, filiform, rather fleshy, smooth, 

 exserted, | in. long ; stigma thick, ovoid, calyptriform, green, y\j- 

 in. long, with several longitudinal whitish membranous angles ; 

 fruits drupaceous, pea-shaped, usually didymous, green when 

 unripe, about \ in. long, ari-anged in cymes 4 to 5 in. in diameter. 

 Sometimes heterophyllous, with a few cordiform smaller leaves in 

 addition to the ordinary ones. 



GoLUNGO Alto. — In the dense primitive forests of Alto Queta, 

 sparingly and flowering rather rarely : fl. middle of March 1856. The 

 natives call this (and also C. goluncjtHHe Hiern, No. 3153) '* Molemba 

 N-gongo " or " Mulangel-Ngombe " or " Muhun9a-Hun9a." No. 3148. 

 In the elevated forests of Alto Queta ; unripe fr. July 1856. No. 3149. 



9. C. Mspidum Benth. in Hook. Niger Fl. p. 409; Hiern, ^.c, p. 140. 



GoLUNGo Ai.To. — A sarmentose shrub, 4 to 6 ft. "high ; leaves black- 

 green, shining, membranous, rather rigid ; flowers tetramerous i 

 corolla white outside, soon turning a little pale-yellowish ; lobes of the 

 limb reflexed at the time of full flower, inside of a deep sulphur colour, 

 the whole corolla soon turning red ; throat bearded ; stigma green, 

 mitriform, vertically winged with delicately membranous laminae. 

 Bj^ the lower thickets of the mountains of Queta, also near N-delle, 

 not uncommon : fl. end of Dec. 1855, and in March 1856. Sometimes 

 heterophyllous as in Po??/.s/j^a?-ia and C. sylraticum. No. 3135. A sub- 

 sarmentose shrub 5 to 7 ft. high ; stem quadrangular, sulcate ; branches 

 opposite, quite patent or even reflexed ; branchlets hirsute with rigid 

 distant ferruginous hairs ; the younger leaves very densely ferruginous- 

 hirsute, the adult ones bright herbaceous-green ; bracts ovate from a 

 broad base, acuminate, hirsute with rigid distant ferruginous hairs ; 

 berries pea-shaped. By thickets along the river Quango at the base 

 of the mountains of Alto Queta : fr. Aug. 1855. No. 3136- 



C. congense Hiern, I.e., p. 141. 



PuNGo Andongo. — A robust sarmentose nearly scandent shrub, 

 with pale-yellowish flowers. In thickets by the river Lutete ; fl, 

 18 Oct. 1850. No. 3142. 



Bum P.O. —Flowers white. In shady places by the river Bumbo ; fl. 

 Oct. 1859. No. 3140. 



10. C. huillense Hiern, sp. n. 



A hard rigid erect shrub, 2 to 4 ft. high ; bi-anches subterete or 

 roundedly tetragonal, ashy, glabrate ; branchlets opposite, decus- 

 sate, patent, shortly pubescent or glabrescent, sometimes fore- 

 shortened and quasi spine-like ; leaves ovate or oval, obtuse at the 

 apex, unequal and usually obtuse at the base, thinly coi^iaceous or 

 firmly submembranous, glabrate or puberulous especially along 

 the midrib and in the axils of the 2 to 4 inconspicuous veins on 

 each side of the midrib beneath, | to 1| in. long by | to f in. 

 broad, green on both faces, somewhat fleshy, often concave or 



