AT4 LXIX. RUBIACES. [Canthium 
lobes + to 3 in. long, lanceolate, produced at the apex into a fili- 
form puberulous tail, valvate in the bud, reflexed in full flower, 
somewhat pilose inside; stamens 5, exserted; filaments inserted 
at the throat, alternating with the corolla-lobes, compressed, 
minutely puberulous, 4, in. long; anthers linear-oblong, yellowish, 
glabrous, 4, in. long, 2-celled, dehiscing longitudinally ; disk 
glabrous, fleshy, annular; ovary 2-celled, ovules solitary in the 
cells ; style far exserted, glabrous, filiform ; stigma calyptriform, 
subecylindrical, green-yellowish, cleft at the apex; berry (the only 
one seen) didymous, 17 in. in diameter, glabrous. 
Hvitia.—In elevated thickets in Morro de Humpata, at an elevation 
of 5200 ft.; fl. Feb. 1860. No. 5352. 
Nearly related to C’. caudatiflorwm Hiern. 
4, C. gracile Hiern in Oliv. Fl. Trop, Afr. iii. p. 139. 
Loanpa.—Flowers herbaceous-green, somewhat resembling those of 
an Aralia ; stigma calyptriform. In thickets in company with species. 
of Arduina, occasional in the district ; fl. and very young fr. Nov. 1853. 
No. 3137, Near Museque de Luiz Gomez ; after the fall of the corolla, 
March and April 1854. No. 3139. A robust shrub, with patent 
branches numerous flowers and usually with didymous fruits. In 
thickets near Imbondeiro dos Lobos ; fr. Feb. 1858. The albumen in 
the seeds is ruminated. The foliage resembles or approaches that of 
C. congense Hiern; the determination is doubtful. No. 3138. 
ZENZA DO GoLUNGO.—A shrub with ascending branches, coriaceous 
leaves and whitish flowers. On craggy mountains near Quicanda ; fl. 
Sept. 1856. This must also be compared with C. congense. No. 3141. 
5. C. glabriflorum Hiern, J.c. 
IsLanp oF St. THoMas.—A tree of moderate size. In the more 
elevated primitive forests ; fl. Dec. 1860. Called by the negroes “ Cla- 
cla.” No. 3147. 
K. Schumann in Engl. Pf. Ost-Afr., C., p. 386, includes under this 
species C. polycarpum Schweinf., a plant from Niamniam-land, which, 
however, he cites as C. polyanthwm. 
6. C. Medusula Welw., sp. n. 
A subscandent shrub, almost arborescent, or even a small tree; 
habit like that of a Coffea; branches opposite, long, patent- 
nodding or sarmentose, obtusely quadrangular, glabrate, towards 
the .extremities somewhat compressed; leaves opposite, oval, 
cuspidate at the apex, rounded or nearly so at the base, thinly 
coriaceous, glossy, glabrescent except sometimes the midrib and 
principal veins beneath, ciliate when young, deep-green above, 
paler beneath, 24 to 4 in. long by 14 to 24 in. broad; lateral veins 
5 to 7, clearly marked beneath each side of the midrib; petiole 
hispid-pubescent at least at first, on some of the branches bent 
so as to make the leaves unilateral, about } in. long; stipules 
interpetiolar, broadly ovate, concave, apiculate, 3 to 3 in. long, 
deciduous ; flowers rather exceeding } in. long before expansion, 
about 3 in. long when expanded, glabrous outside or very nearly 
so, numerous, on pedicels of about the same length, arranged in 
opposite axillary glabrous subsessile panicles likened to the head 
