202 Lxx. RUBIACE^ (hieen). [FsychotHa. 



firmly chartaceous, of nearly the same colour ou both surfaces, 

 8-9 by 1^4 in., margins narrowly revolute, lateral veins about 

 8-10 pairs, conspicuous beneath ; stipules deltoid, undivided, apiculate, 

 glabrous, small, caducous. Flowers pentamerous, about ^ in. long or 

 rather more, on very short pedicels, many together in dense subglobose 

 ebracteate subsessile terminal panicles of 1 in. or more diam., laxer and 

 larger in fruit. Calyx-limb hemispherical, about as long as the ovary, 

 subtruncate, minutely ciliate. Corolla-lobes 5. Disk fleshy. Berries 

 fleshy, ovoid, nearly -^ in. long. 



Upper Guinea. Near the G-aboon River, Mann .' 



The following specimens differ from the type of this species and may perhaps 

 prove to be distinct : — 



(1) Flowers \ in. long; panicles 2 in. diam. in flower, 4 in. diam. in fruit; berries 

 crowned by a persistent calyx-limb. 



Cameroon Mountains, at 2-3,000 feet elevation, Mann! a shrub, 6-8 feet high. 



(2) Berries about 1_ in. long; leaves rather abruptly wedge-shaped at the base ; 

 lateral veins less conspicuous ; corolla red. 



Sierra del Crystal, Mann ! a shrub, 8 feet high. 



(3) Corolla white or pale yellow, slightly curved. 



Niger Expedition, at Eppah, Barter ! and at Onitsha, Barter ! 



(4) Panicles pedunculate, peduncle f-f in. long. 

 Gaboon Eiver, Mann ! 



20. P. arborea, Hiern. A small nearly glabrous tree, not 

 shrubby. Branches terete, towards the extremities compressed. 

 Leaves elliptical, narrowed at both ends, glabrous, thinly coriaceous, 

 of nearly the same colour on both surfaces, 8-14 by 3-5 in., margins 

 narrowly revolute ; petiole §-1^ in. long ; lateral veins about 12 pairs ; 

 stipules caducous .... Flowers -1- in. long, on short pedicels, in 

 rather dense hemispherical branched terminal shortly pedunculate pu- 

 berulous cymes of 2 in. diam. ; common peduncle \ in. long ; bracts and 

 bracteoles minute or obsolete. Calyx green ; limb hemispherical, as 

 long as the ovary, entire, glabrous. Corolla white ; tube fuunel-shaped ; 

 limb 5-6-lobed ; throat bearded. Anthers exserted. Style bifid 

 above. 



Upper Guicea. Old Calabar, Rev. W. C. Thomson J 



21. P. sciadephora, Hiern. A nearly glabrous shining shrub, 

 3-10 feet high. Branches smooth, terete, compressed towards the ex- 

 tremities. Leaves narrowly elliptical, acuminate, wedge-shaped at the 

 base, membranous, of the same colour on both surfaces, 4-7 by 1-2J in., 

 margins narrowly and subrepandly revolute ; lateral veins about 8 

 pairs, slender ; petiole i-J in. ; stipules depresso-deltoid, undivided, api- 

 culate, ^ in. long, shaggy inside, deciduous ; the yeung shoots also 

 sheathed at the base by scales which are shaggy inside like the stipules. 

 Flowers pentamerous, on short pedicels, in dense small clusters arranged 

 in sessile or subsessile terminal umbels of about 1-1^ in. diam. ; bracts 

 obsolete. Calyx brown ; limb longer than the ovary-, shortly 5-fid ; 

 lobes recurving, ovate. Corolla brown, very short ; throat bearded. 

 Berries oval, ^ in. long ; albumen of the seeds uniform, homy. 



ITpper Guinea. Cameroon Mountains, at elevation of 4,000 feet, Mann ! Am- 

 bas Bay, Mann ! 



