198 LXX. RUBIACEE (HIERN). [ Psychotria. 
two opposite longitudinal ridges decurrent between the upper nodes. 
Leaves oval-ovate, more or less acuminate, somewhat wedge-shaped at 
the base, chartaceous, of nearly the same colour on both surfaces, lucid, 
14-34 by 3-1} in., margins somewhat revolute, lateral veins about 
7-9 pairs, slender, not conspicuous; petiole ,!,-} in.; stipules del- 
toid, apiculate, undivided, rigid, 3-4 in. long. Flowers a7 in. long, 
tetramerous, subsessile, crowded, several together, in subsessile terminal 
clusters ; bracts mostly like the stipules but smaller ; bracteoles minute 
or obsolete. Calyx-limb scarcely as long-as the ovary, 4-toothed. Co- 
rolla-throat bearded ; lobes not appendaged. Fruit 4 in. long, ovoid, 
dicoceous; cocci marked on the back with 3 blunt ridges. Albumen 
of the seeds uniform ; radicle inferior. 
Upper Guinea. Sierra Leone, Afzelius! G. Don! ; on Sugar Loaf Mountain, 
Barter ! 
Fruit seen in Hb. Smith. 
7. P. cornuta, Hiern. A dwarf glabrous undershrub. Stem 
simple or but little branched, subterete below, compressed above. Leaves 
oval often broadly so, shortly acuminate, wedge-shaped at the base, 
chartaceous, of nearly the same colour on both sides, 2-3 by gly ms 
margins narrowly revolute, lateral veins about 6 pairs, slender; Pe 
tiole +2 in.; stipules ovate-acuminate, bifid, }-} in. long, sheathing 
at the base, lobes subulate, lax. Flowers 7/5 in. long, tetramerous, on 
shorter pedicels, in small divaricately branched oval terminal cymes 
4 in. long; common peduncle 4-4 in.; bracts and bracteoles minute a 
obsolete. Calyx-limb about as long as the ovary and wider than 
very shortly lobed. Corolla-tube cylindrical, straight ; lobes 4, deltort, 
very small, furnished at the back each with a spreading linear horn 
nearly as long as the tube. Stamens included. Style included, ah 
2 very short erect branches. Berries 4 in. long; albumen of the 
seeds cartilaginous, uniform. 
Upper Guinea. Fernando Po, Mann! 
8. P. humilis, Hiern. A dwarf undershrub about 6 in. high 
Stems erect, simple, glabrate and subterete below, somewhat ae 
pressed and hairy above. Leaves oval or somewhat obovate, obtuse'y 
pointed or mucronulate, wedge-shaped at the base, scatte : 
crisped hairs on both sides, rather paler beneath, chartaceous, 9” ie 
14-3 by $-1} in., lateral veins about 6 pairs, not conspicuous ; pour 
3-4 in. long, hairy ; stipules fugacious. Flowers very small, glabrou®, 
tetramerous, on short pedicels, about 6 together, in terminal cluster’; 
common peduncle ? in. long, glabrous; bracteoles minute. Caly. x-hm 
short, very shortly lobed. Corolla-tube straight, cylindrical ; lobes pe 
very small, deltoid, furnished at the back each with a patent ie 
horn nearly as long as the tube. Stamens included. Style glabron ' 
as long as the corolla-tube ; stigma subcapitate. 
Upper Guinea. 1°N. lat. Corisco Bay, Manns 
