; 
Janvary 25, 1908] A Century or New PLANTS 278 
submembranous, flat, ovately oblong, the average blade 9 
em. long by 5 em. wide below the middle, entire, glabrous; 
base rounded, apex also rounded or obtuse or frequently 
acute; petiole much thickened at base and on each side 
subtended by small buds, 1 cm. long, glabrous, deeply 
caniculate along the upper side; nerves very faint, barely 
distinguishable from the reticulations, 5 to 7 on each side, 
equally plain on the upper side. Flowers unisexual, sub- 
globose, one half nodding, less than 1 cm. thick; peduncle 
9 to 8 cm. long, usually straight, glabrous, with 1 to 3 
short bracts, the base subtended by similar bracts, axillary, 
solitary; sepals and petals imbricate, the outer ones much 
smaller, reddish, glabrous, rather thick; the inner ones yellow, 
strongly concave, elliptic, about 6 mm. long; carpels rugose, 
1.5 mm. across in the young state, irregular and angular, 
2-celled, with a single seed in each cell. 
Type specimen 8700, A. D. E. Elmer, Baguio, Province 
of Benguet, Luzon, March, 1907. Scrambling over shrub- 
beries of hot dry ridges of limestone outcroppings near the 
barrio of Bacong five miles north of Baguio. The Igorrotes 
call it Betocaan and its slender stems are used for tieing 
purposes. 
Conocephalus warburgii n. sp.—Scandent shrub, with 
more or less tough wood and smooth grayish bark; branchlets 
. quite slender, not numerously branched, one half drooping, the 
' thickness of a small finger. Leaves chiefly toward the ends 
of the twigs, very unequal in size, oblong to obovately 
lanceolate, flat, subcoriaceous, horizontal or somewhat descend- 
ing, the medium blades 2 dm. long and 6 em. wide below the 
middle, the upper one half gradually tapering into an 
acuminate point, the base rounded, glabrous, finely marked 
with dull white hair like excrescences; the 7 to 9 pairs of 
lateral nerves ascending, quite prominent on both sides but 
especially so beneath; petioles variable in length, from 5 
to 10 cm. long, glabrous, thickened at the base, deciduous, 
leaving large scars; interaxillary bracts erect, glabrous, 
rigid, purplish within and forming ant tubes, edges twisted 
and overlapping, 15 mm. long, also deciduous. Infrutescence 
in the lower leaf axils or from the axils of their scars, 
