Psilanthus.] LXX. RUBIACEH (HIERN). 187 
3, P.? tetramerus, Hiern. Glabrous. Branches opposite, 
terete except the extremities, subcinereous, erect-patent, approximated. 
Leaves elliptical or rather obovate, obtusely acuminate, attenuate to 
the very shortly petiolate base, firmly chartaceous, of nearly the same 
colour on the two surfaces, 14-3 by 4-1 in. ; lateral veins slender, in- 
Conspicuous, about 6-7 pairs, often with little glandular pits in the 
axils beneath; stipules shortly ovate, apiculate, pallid, deciduous. 
Flowers tetramerous, 2 in. long, sessile or subsessile in the uppermost 
axils of adult or young leaves, solitary or two together. Bracteoles 
absent from the base of the calyx. Calyx-limb short, truncate, crenu- 
late, broader than the tube. Corolla salver-shaped ; lobes 4, ovate- 
oblong, obtuse, ¢-} in. long; throat glabrous. Anthers just included, 
near, subsessile, 4-} in. long; attachment rather above the middle of 
the back. Style } in. long, nearly entire and glabrous. 
Upper Guinea. Sierra Leone, Afzelivs! seen from the Berlin herbarium, but 
not in that of Afzelius. 
59. RUTIDEA, DC.; Benth. et Hook. f. Gen. Pl. ii. p. 116. 
__ Calyx-tube ovoid or campanulate; limb 5-4-, rarely 6-lobed, de- 
Ciduous; lobes ovate subulate or filiform. Corolla salver-shaped some- 
times shortly so; tube cylindrical ; throat glabrous ; limb spreading or 
reflexed, deeply lobed, lobes 5-4 or rarely 6 oval, contorted dextrorsely 
a8 seen from inside) in the bud. Stamens 5-4, rarely 6, inserted at 
the mouth of the corolla, exserted; filaments short ; anthers oblong, 
apiculate, spreading, fixed at the back rather above the base. Disk 
eshy, glabrous. Ovary 2- rarely 3-celled or incompletely so; style 
orm, exserted, glabrous or nearly so; stigma fusiform clavate or 
o’0ose, entire or rarely 2-3-lobed ; ovules solitary, inserted on small 
eshy placentas ascending from the base of the ovary, amphitro- 
Pous, subreniform. Fruit somewhat fleshy, pea-shaped, 1-celled, 
l-seeded ; endocarp chartaceous. Seed globose, filling the cell; hilum 
al; testa thin; albumen horny deeply ruminated ; embryo terete, 
gated, curved, cotyledons linear, radicle inferior. — Scandent 
Stubs with Opposite patent branches, opposite leaves, apiculate entire 
Pr cleft stipules from a broad base, and rather small white bracteolate 
&rmaphrodite flowers, capitate, arranged in brachiate terminal panicles 
T corymbose. 
A genus Containing one species from Madagascar and the following. 
Stipules 3_5-cleft and—setose. 
Calyx-lobes subulate 2... 1 ee eee ee OR tr 
Sti alyx-lobes ovate ce ee ee RB parviflora. 
‘pules apiculate, entire. 
ewers pentamerous (rarely hexamerous). 
rolla hairy outside. 
Branches shortly tomentose. 
Style glabrous, Leaves thinly coriaceous, beneath 
with conspicuous hairy tufts in the axils of 
the lateral veins . 2. pe es 
Style thinly pubescent about the middle. Leaves 
3. R. olenotricha. 
