888 LEAFLETS OF PHILIPPINE BoTANY [Vor. III, Arr. 50 
all glabrous; staminate flowers several, whitish, upon glabrous, 
similarly colored and 1.25 mm. long pedicels; perianth also 
glabrous, segments 4, decussate, becoming free nearly to the 
base, elliptie, 1.5 mm. long, minutely mucronate; stamens 4, 
opposite the segments, inflexed in the bud; filaments hyaline, 
as long as the perianth; anthers deeply bilobed, 1 mm. 
long; fruiting heads sessile, the outer bracts greenish, the 
inner ones spatulate and ciliate; pedicels as long as those 
bearing the staminate flowers, bearing a single seed; achene 0.75 
mm. long, fusiform from the side view, brown, surrounded by a 
utricle, subtended by 3 or 4 lobulate phlanges. 
Type specimen 11545, 4. D. E. Elmer, Todaya (Mt. Apo), 
Distriet of Davao, Mindanao, August, 1909. 
Growing with dense masses of mosses and scale-mosses 
upon wet rocks along the Cati creek east of mount Apo at 
$750 feet or just above its first fall. 
Its affinities lie with E. microphyllum Elm. and other 
related species from mount Banahao. 
Elatostema philippinense Elm. n. sp. 
Soft, dense masses; stems succulent, 3 dm. long or longer, 
creeping, ultimately bearing numerous branches, 7.5 mm. 
thick, terete, glabrous, dark green, well interlaced; branches 
ascending, their tips frequently recurved, occasionally rebranch- 
ed, glabrous except the sparsely strigose leafy portion, 
equalling the stems in length. Leaves alternatingly scatter- 
ed mostly toward the top, the few lower ones reduced, ascend- 
ing or horizontal, flat, soft membranous, deep green above, 
much lighter green beneath, the natural color beautifully 
preserved in the dry state, glabrous, without cystoliths, apex 
acuminate to caudate, sessile, the very oblique base bluntly 
obtuse, the lower or wider side conspicuously curved, the upper 
nearly straight, dentately serrate from the base clear to the 
tips, the larger serratures doubly serrate and those along the 
apex often with a minor one in between, the larger leaves 
8 cm. long, 2 em. wide across the middle, oblongish to 
lanceolate or broadly lanceolate, with the widest portion across 
the middle; midvein conspicuous beneath, subolivaceous, strig- 
ulose, with 5 to 7 ascending pairs which are usually forked 
