880 LEAFLETS OF PHILIPPINE BOTANY [Vor. III, Arr. 50 
and foliaceous, glabrous but covered with blackish cystoliths, 
oblong, roundly obtuse at apex, quite broad at the base, 
1.5 cm. long. Inflorescence clustered in the lower leaf 
axils, cymosely spreading; branches glabrous, arising from 
near the base, 1 to 2 cm. long in the fruiting state, flat- 
tened or more or less winged, green, glomerules subtended 
by greenish or hyaline bracts 1.5 mm. long and relatively 
broad, covered with cystoliths, the inner bracts much 
smaller and narrower, all glabrous; pedicel 0.5 mm. long, 
hyaline; perianth greenish and similarly marked with cys- 
toliths, globose in the bud state, 1.5 mm. in diameter, 
minutely 4-toothed at apex, ultimately 4-parted; stamens 
4, opposite the segments, strongly inflexed in the bud; 
anther deeply bilobed, the brown filaments glabrous; pistil- 
late flowers sessile or upon very short pedicels in the fruits, 
in small glomerules irregularly scattered; perianth greenish, 
subequal, 0.75 mm. long, 3-lobed, acutely pointed, united 
toward the base; achene flattened, ovately oblong from the 
side view, 1 mm. long, subtended by 8 basal glands, tuber- 
culately glandular; stigma papillose, upon a very short neck, 
brown when dry. 
Type specimens 11698 pistillate and 11547 staminate, 
A. D. E. Elmer, Todaya (Mt. Apo), District of Davao, 
Mindanao, September and August respectively, 1909. 
The former number of this sylvan species was collected 
at 4000 feet in a humidly forested basin and was named 
‘*Sigbut-tala’’ by the Bagobos; the latter number was collect- 
ed on seepage ledges along the Cati creek at 5750 feet 
and was called “‘Roman’”’ by the same natives. 
Very close to P. angulata Blm., but apparently different 
in a number of minor characters. 
Pilea robinsonii Elm. n. sp. 
Rank succulent herbs; stems green, nearly 2 cm. thick, 
irregularly bulging between the nodes, sparingly rebranched, 
reclining and forming tangled thickets, with a very strong 
peppery odor; branches erect or suberect bearing leaves 
toward the top only. Leaves ascending, flat, opposite, 
the slender acuminate tips recurved, dark olive green on- 
the upper side, much paler or yellowish green beneath, 
