Canthium] LXIX, RUBIACES, 477 
longitudinally folded inwards ; petioles short, ranging up to /, in. 
long ; stipules ovate, apiculate, connate at the base, undivided, 
deciduous ; flowers 3 in. long when expanded, } in. long before 
expansion, white, tetramerous, glabrous outside, on rather short 
puberulous pedicels, arranged in axillary shortly pedunculate 
cymes 4 to 1 in. in diameter ; common peduncle + to } in. long, 
puberulous ; bracteoles small, deciduous ; calyx-limb small, shortly 
dentate ; corolla quadrifid; the tube j, in. long, pilose inside ; 
the throat bearded ; the lobes =}, in. long, ovate, obtuse, glabrous 
on both faces, valvate in the bud, spreading or reflexed in full 
flower; anthers 4, glabrous, exserted; disk glabrous; ovary 
2-celled, fleshy, campanulate, somewhat compressed; ovules solitary 
in the cells, pendulous ; style exserted, glabrous, curved ; stigma 
calyptriform. 
Hviiia.—In wooded thickets near the lake Ivantala ; fl. end of Feb. 
1860. No. 3145. In rather dry bushy places between Lopollo and 
Moninho, sporadic ; fl. March 1860. No. 3146. 
11. C. sylvaticum Hiern, sp. n. 
A robust climbing tawny-pubescent shrub, 5 to 7 ft. high; 
branches obtusely quadrangular, at length glabrate; leaves 
opposite, oval-oblong, acutely acuminate at the apex, unequal and 
more or less rounded at the base, thinly coriaceous, dark-green 
glossy and glabrate or with scattered hairs above, reddish (in the 
dried state) paler and hairy along the principal veins and midrib 
beneath, 2 to 5 in. long by 2 to 2 in. broad; lateral veins 5 to 7 
on each side of the midrib, rather slender, depressed above, in 
relief beneath ; petiole 4 to 3 in. long, more or less hairy; stipules 
ovate, much acuminate, hairy on the back, interpetiolar, 4 to 
din. long, deciduous ; flowers % in. long when expanded exclusive 
of the exserted style, on short pubescent pedicels, tetramerous, 
numerous, arranged in pedunculate bracteolate densely paniculate 
opposite axillary cymes 3 to 1 in. in diameter, yellow-greenish, 
scarcely fragrant ; common peduncle pubescent, + to } in. long; 
bracteoles lanceclate or subulate; calyx about ;4 in. long, hairy 
at the base, the limb glabrous except the ciliolate margin, 4-cleft ; 
corolla-tube 4 in. long, cylindrical, glabrous outside, pilose inside; 
throat bearded ; lobes 4, ovate, obtuse, 7, in. long, glabrous ; 
anthers exserted, glabrous, oblong ; disk glabrous, annular-fleshy ; 
ovary hairy outside, 2-celled ; ovules solitary in the cells, pendu- 
lous ; style glabrous, exserted ; stigma mitriform. 
Punco AnponGo.—In forests near the base of Pedra Cabondo 
within the presidium ; fl. April 1857. No. 3134. 
The leaves below the branches are occasionally sub-orbicular and 
cordate, after the manner of the heterophyllous condition sometimes 
noticed in species of Polyspheria. 
12, C.tenuiflorum Welw. ms. in Herb., sp. n. 
A shrub, climbing or sarmentose-scandent : trunk not uncom- 
monly 2 in. in diameter at the base; branches opposite, patent, 
obtusely quadrangular, glabrate, puberulous at the extremities ; 
bark whitish ; leaves oval-elliptical, acuminate or cuspidate at the 
