190 Lxx. EUBiACEiE (hiern). [RiiUdea. 



paler and glabrate except the puberulous midrib and 8-10 pairs of 

 slender lateral veins beneath, SJ-SJ by 1^-2^ in. ; petiole ^ in., 

 pnberulous ; stipules entire, much apiculate from a short truncate 

 base, altogether ^-^ in. long, shorter than the petiole. Flowers pen- 

 tamerous, subsessile, in clusters, ■'^orming brachiate terminal pyramidal 

 leafy panicles ; bracteoles subulate. Calyx-lobes ovate. Corolla-lobes 

 glabrous or nearly so. Stigma fusiform. Ovary 2-celled. Fruit 

 J— 1 in. diameter. Cotyledons reflexed at the apex. 

 Kower Guinea. Congo, Chr. Smith ! 



7. R. decortlcata, Hiern. A scandent shrub of 30 feet, gla- 

 brous in most parts. Branches subterete, patent, smooth ; outer bark 

 thin, soon peeling off. Leaves broadly oval, abruptly acuminate, ob- 

 tusely narrowed at the base, glabrous except little hairy tufts beneath 

 in the axils of the 7-9 pairs of clearly marked lateral veins, thinly 

 coriaceous, 3^-7 by 1-^-4 in. ; petiole f-1^ in. long, rather rough by 

 the cracking and peeling of the cuticle ; stipules solitary, undivided, 

 much apiculate from a broadly ovate or subtruncate base, ^— J in. long. 

 Flowers pentamerons (perhaps also by exception tetraraerous), A in. 

 long on shorter bracteolate pedicels in divaricately branched terminal 

 and sessile or lateral and pedunculate panicles ; bracteoles lanceolate, 

 somewhat pubescent, falling short of the calyx-limb, some with a small 

 lobe on each side of the base. Calyx ^ in. long ; limb half-cleft ; tube 

 glabrous or nearly so ; lobes ovate, often ciliolate. Corolla glabrous 

 throughout ; tube short ; lobes oval, ^ in. long. Style glabrous ; 

 stigma clavate-fusiform. 



ITpper Guinea. Cameroon Mountains, at 2000-3000 feet alt., Mann ! 



8. R. membranacea, Hiern. Shrubby, perhaps scandent, 

 nearly glabrescent. Branches slender, compressed minutely puberu- 

 lous and sulcate towards the extremities. Leaves broadly elliptical, 

 acuminate or emarginate, obtusely or acutely narrowed and oblique at 

 the base, membranous, glabrescent except little puberulous tufts in the 

 axils of the 7 pairs of slender lateral veins beneath, 2|-5 by 1^-2^ in. ; 

 petiole ^-^ ; stipules entire, much apiculate from a short truncate 

 base, ^— ^ in. long. Flowers tetramerous or by exception pentamerous, 

 ^ in. long, on short slender puberulous pedicels, numerous, in dense 

 terminal corymbs ; bracteoles small, puberulous, falling short of the 

 calyx-limb. Calyx very small ; tube glabrous ; limb half-cleft, lobes 

 ovate puberulous. Corolla glabrous throughout ; lobes oval, -j^- in. 

 long. Style glabrous, exsert^ed by the length of the flower ; stigma 

 globose, 2-3-lobed. Ovary 2-3-celled. 



Vpper Guinea. Old Calabar, Rev. W. C. Thomson ! 



9. R. grlabra, Hiern. A scandent shrub, glabrous except the 

 inflorescence. Branches terete, at the extremities compressed and sul- 

 cate ; cuticle easily peeling. Leaves elliptic-oblong, acuminate, obli- 

 quely narrowed or one side, obtuse at the base, firmly chartaceous, 

 spreading, turning black in the dry state, 3-6 by 1-2 in., or the upper- 

 most at the base of the inflorescence smaller; lateral veins about 5 



