196 LXX. RUBIACEE (HIERN). [ Psychotria. 
Leaves chartaceous. 
Stipules 1-3 in. long; bracts large. ; 
Lateral veins of the leaves about 20 pairs. 47. P. latistipula. 
Lateral veins of the leaves about 13 pairs. 48. P. Schweinfurthii- 
Stipules }-} in. long; bracts small. 
Stipules bifid. Stomata inconspicuous. 
Leaves 6-Sin. . . . . . . . © . «49. Pi lueens. 
Leaves 1}-5in.. . 2. . . 1 1 e . 680. P. reptans. 
Stipules entire or bidentate; leaves scat- 
tered with black dots . . . 51 P. mucronata. 
Stipules undivided. Stomata conspicuous | 52. P. stictophylla. 
Calyx-limb shorter than the ovary. 
. 53. P. obscura, 
Leaves paler beneath . . rs 
Leaves of nearly the same colour on the two 
surfaces, 
Style glabrous. Stipules obovate-rotund . . 54. P. erispa. 
Style puberulous. Stipules ovate-lanceolate . 55. P. trachystyla. 
Heads solitary, rather dense . . -. . . . 56. P. Soyaurn. 
V. CHASALIA. 
Flowers crowded in subsessile heads . . . . . . . 987. 
Flowers in lax or dense but not capitate pedunculate 
cymes. 
Corolla glabrous outside. Leaves glabrous. 
Leaves much acuminate . soe ee 
Leaves shortly or scarcely acuminate. . 
Flowers }-3 in. long. Calyx d-cleft. . . . . 59. P. zanguebariea. 
Flowers nearly 1 in. long. Calyx subtruneate . 60. P. umbraticola. 
Corolla pubescent outside. Leaves pubescent beneath. 61. P. nubdica. 
P. virens. 
58. P. Ansellii. 
1. P. pauridiantha, Hiern. Glabrous. Branches terete, dark, 
compressed towards the extremities. Leaves elliptical, acuminate, 
wedge-shaped at the base, chartaceous, of nearly the same colour 0? 
both surfaces, spreading, 3-5 by 3-14 in., margins narrowly revolute ; 
lateral veins about 7 pairs, slender; petiole 1-4 in. long; stipules 
ovate or lanceolate, bifid, 1-1 in. long, teeth filiform-subulate ; some 
times an additional small tooth occurs on each side near the base © 
the stipule. Flowers 4~5-merous, about } in. long, on rather shorter 
slender pedicels, forming small pedunculate ebracteate terminal fow: 
flowered cymes; common peduncle slender, 2 in. long. Caly x-limb 
small, shortly toothed. Corolla 4—5-fid; throat thinly bearded. An- 
thers exserted. Style bifid, included. 
Upper Guinea. Sierra del Crystal, Mann’ 
2, BP. brachyantha, Hiern. A nearly glabrous shrub, about 6 feet 
high. Branches terete, somewhat compressed towards the extreml- 
ties. Leaves oval or oblong, subacuminate, wedge-shaped at the base; 
thinly chartaceous, glabrous, 3-9 by 13-31 in., margins repa 
lute ; lateral veins about 11 pairs, slender, not conspicuous ; 
ranging up to 3 in. ; stipules about } in. long from an ovate base, P , 
lous at. the back, tips setaceous. Flowers tetramerous, about rz ms 
long when expanded, on short slender pedicels, in terminal trichotomon= 
subcorymbose pedunculate panicles of about 14 in. diam. ; bracts 0 ss 
lete, bracteoles small, subulate ; common peduncle 1-3 in. long, slene®™ 
