168 LXX, RUBIACEZ (HIERN). [ Pavetta. 
impressed on the fleshy placentas, amphitropous. Berry pea-shaped, 
rather fleshy ; pyrenes 2, chartaceous. Seeds convex outside, concave 
or excavated on the inner face ; umbilicus ventral ; testa membranons ; 
albumen horny, uniform, excavated on the inner face 5 embryo dorsal, 
curved, cotyledons foliaceous, radicle terete, inferior—Shrubs or 
small trees with opposite or rarely ternate leaves, ovate apiculate st- 
pules connate at the base, and white or greenish hermaphrodite 
flowers arranged in terminal or rarely axillary bracteolate corymbs. 
A genus of considerable size chiefly inhabiting the tropical and subtropical regions 
of the old world, All our species appear to be endemic. The bracteoles are not at 
the base of the calyx, as is common in Jora, but are placed lower down. 
Inflorescence terminal and sometimes also subterminal (or 
terminating: short lateral branches in P. subcana). 
Calyx-lobes equal, open in stivation. 
Glabrous except the inflorescence. 
Leaves elliptical or obovate, wedge-shaped at the 
base. 
Calyx-limb subtruneate or half-cleft. 
Style undivided. Leaves 2-9 in. long. 
Stigma pubescent. . . . 2. . . 1. P. brachycalya. 
Stigma glabrous or puberulous. 
Inflorescence glabrous, _— divaricately ‘ 
branched. Leaves 7-9in. long. . . 2. P. Mannit. 
Inflorescence puberulous; branches not . 
divaricate. Leaves 4-6} in. long. . 3. P. monticola. 
Style bidentate at the tip. Leaves 9-12 in. long 4. P. bidentata. 
Calyx-limb deeply lobed, more than half cleft 
(Crinitd). 
Leaves elliptical. Calyx 4} in. long. 
Style 4 in. long, about twice the length of 
the expanded flower . . . ... ., 
Style 1 in. long, about three times the 
length of the expanded flower. . . . 6. P. glaucescens. 
Style 14 in. long, about four times the 
length of the expanded flower . . . 7 P. puberula. 
Leaves somewhat obovate. Calyx } in, long . 8. P. crebrifolia. 
9 
0 
5. P. owariensis. 
3 
Leaves oval, not much narrowed at the base. 
Leaves membranous, not caudate-acuminate 
. P. macrosepala. 
Leaves tirmly chartaceous, caudate-acuminate . ; 10. P. neurocarpa. 
Leaves and branches more or less pubescent tomentose 
or hispid. 
Calyx small, with 4 short deltoid teeth . . . . 11. P. subcana. 
Calyx-teeth subulate. 
Style exserted by 2-1 in. or less. 
Corolla glabrous outside. 
Flowers }—} in. long (exclusive of the ex- ye 
serted style), slender . . . 12. P. gracilis. 
Flowers 1-1} in. long (exclusive of the ex- a 
serted style), rather robust . . . . 13. P. abyssinica. 
Corolla pubescent outside. 
Corolla-lobes oval, mucronulate. Leaves . 
oval. « . ew ww ww. 14, P, Oliveriana. 
Corolla-lobes acuminate. Leaves elliptical . 15. P. mollis. 
Style exserted by 1}~2 in. 
Corolla-throat pubescent. Branches gla- 
brate . . se 1 ee ee 4 +s 16, P, dolichosepala. 
