144 Lxx. RUBIACE5: (hiern). [Canthmm. 



diameter ; common peduncle glabrous, ^-^ in. Calyx-tube glabrous or 



nearly so ; limb 4-toothed ; teeth subciliate. Corolla white, glabrous 



outside ; throat bearded ; lobes 4, scarcely acute, glabrous. Disk 



hispidulous. Style glabrous. Stigma far exserted, calyptriform, 

 8-oo3tate. Fruit f in. long, subdidymous or oblique, smooth ; seeds 

 somewhat curved. Albumen ruminated. 

 Upper Guinea. Cameroon River, Mann ! 



30. C. lividum, Hiern. A nearly glabrous unarmed shrub. 

 Branches erect-patent, terete, compressed towards the extremities. 

 Young leaves (at the time of flowering) oval-oblong, subacute or 

 fiubacuminate, obtuse or somewhat unequally narrowed at base, char- 

 taceous, bluish -black on both sides when dry, 1^3 by ^-1^ in. ; lateral 

 veins about 6 pairs, inconspicuous ; petiole ^-^ in. ; stipules ovate, 

 apiculate, J in. Flowers tetramerous, J in. long, glabrous outside, on 

 puberulous pedicels of ^-\ in., many together, in dense dichotomous 

 panicles of 1-1:|: in. diameter, appearing when the leaves are young ; 

 common peduncles ^-\ in. long, glabrate or puberulous ; bracteoles 

 wanting or minute. Calyx-teeth small, glabrous. Corolla-tube hairy 

 inside. Disk glabrous. Style far exserted, glabrous ; stigma calyptri- 

 form. 



IVXozamb. Blstr. Moramballa, alt. 1800 feet, Kirk! 



31. C. venosum, Oliv. in Trans. Linn. Soc. Land. xxix. 85, t. 49, 

 suh Plectronia. A shrub of about 15 feet, or a tree, or climbing to a 

 considerable height, unarmed. Young parts peduncles and pedicels 

 ferruginous-hispid. Branches subterete, ashy, glabrescent, spreading. 

 Leaves oval oval-ovate or elliptic-lanceolate, obtuse or acuminate, 

 rounded or wedge-shaped at the base, thinly coriaceous, nearly glabrous, 

 with rather hairy depressions in the axils of the 4-6 pairs of lateral 

 veins, 3-5 by 1-2 in., sometimes smaller ; tertiary veins transverse ; 

 petiole ^.\ in., glabrescent ; stipules ovate-acuminate from a broad base, 

 I in. long, caducous. Flowers about ^ in. long, white, on shorter or 

 equalling pedicels, many together in globose dichotomously branched 

 panicles of about 1 in. diameter; peduncle about ^ in. long. Calyx- 

 tube turbinate, glabrous or nearly so ; limb small, glabrous except the 

 4 small ciliolate teeth. Corolla glabrous outside ; throat pubescent ; 

 lobes 4, obtuse. Disk hairy. Style exserted, glabrous ; stigma calyp- 

 triform. Fruit ^-^ in. long, hard, globose or subdidymous. Seeds 

 subglobose ; albumen ruminated. — Canthium, sp., T. Thorns, in Speke, 

 Journ., App. p. 636. 



Vile Xiand. Madi, in woods, a tree, Speke and Grant ! Djur-land, a high 

 climbing shrub, Schweinfurth ! Bongo-land, a shrub of 15 feet, ^hwemfurth! 



Var. ? pubescens. Branches more hairy. Leaves ferruginous-pubescent on the 

 veins beneath, ranging up to 6 by 3 in. 



Upper Guinea. Niger, Brass, Barter ! Onitsha, Barter I . 



32. C 7 xnultifloruxn, Hiern. A decumbent or scandent shrub; 

 branches numerous, brachiate, obtusely tetragonal, quite glabrous. 

 Leaves distichous, oblong-ovate, attenuate at the apex, subacute, 



