xX, © 2 Merrill: Studies on Philippine Rubiaceae, IT 107 
PRARAVINIA Korthals 
PRARAVINIA EVERETTII sp. nov. 
Frutex dioicus, partibus junioribus floribusque plus minusve 
hirsutus; foliis lanceolatis vel oblongo-lanceolatis, tenuiter acumi- 
natis, usque ad 11 cm longis, nervis utrinque 7 vel 8; floribus 
axillaribus, solitariis, involucris calycibusque extus hirsutis, 
petalis 6 vel 7; fructibus junioribus hirsutis. 
A dioecious shrub. Branches slender, terete, light-gray, glab- 
rous, the branchlets more or less hirsute. Leaves lanceolate to 
oblong-lanceolate, pale and somewhat shining when dry, glabrous, 
or the midrib beneath somewhat hirsute, 7 to 11 cm long, 1.2 to 
3 cm wide, narrowed upward to the long and slenderly acuminate 
apex, the base acute; lateral nerves 7 or 8 on each side of the 
midrib, prominent, curved-ascending, anastomosing; petioles 8 
to 12 mm long, ultimately glabrous; stipules lanceolate, decid- 
uous, about 1 cm long. Flowers axillary, solitary, yellowish, 
so far as our material shows the males on one plant, the females 
on separate ones. Male flowers sessile, subtended by 2 basal 
involucres, each more or less 4-lobed, hirsute, the first 1.5 mm in 
diameter, the second about 2.5 mm in diameter. Calyx similar 
to the involucres but much larger, hirsute, membranaceous, up 
to 3.5 mm long, 4-lobed. Corolla-tube about 3 mm long, glabrous 
externally, the lobes 6 or 7, lanceolate, about 5 mm long, 2 mm 
wide, acuminate, somewhat villous externally, the throat very 
densely villous with stiff white hairs 1.5 to2 mm long. Anthers 
1.5 mm long, apiculate. Ovary a mere rudiment. Female 
flowers in general similar to the males, the anthers more or less 
aborted and without pollen. Calyx somewhat tubular, hirsute, 
4-lobed, the lobes triangular-ovate, somewhat acuminate, 1.5 mm 
long, the subtending involucre 4-lobed, 4 to 5 mm in diameter, 
membranaceous, villous. Fruit apparently fleshy, many-seeded. 
NEGROS, Mount Silay, For. Bur. 7294 (type), 7268 Everett, May 9, 1907, 
on ridges in forests, altitude about 700 meters. 
The fifth species for the genus, two being known from Borneo and two 
from Celebes. . : 
WILLIAMSIA Merrill 
WILLIAMSIA MULTINERVIA sp. nov. 
Frutex 3 ad 4 m altus, subglaber; foliis oblongis, rectis, circiter 
20 cm longis, acuminatis, nervis utrinque circiter 18; stipulis 
usque ad 4 cm longis, deciduis; fructibus anguste ovoideis, circiter 
12 mm longis, 7-locellatis. 
A shrub 3 to 4 m high, the branches terete, the branchlets 
pale-brownish, distinctly verruculose. Leaves opposite, oblong, 
chartaceous, pale when dry, somewhat shining, glabrous, 15 to 
oe ae wn oy 
