886 LEAFLETS OF PHILIPPINE BOTANY [Vor. III, Arr. 50 
thin; the 5 lobes shorter, obovate, minutely pointed at the 
apex; anthers deeply bilobed, upon very slender and hya- 
line filaments, as many as there are perianth segments; 
pistillate flowers and fruits not seen. 
Type specimen 11793, A. D. E. Elmer, Todaya (Mt. Apo), 
Distriet of Davao, Mindanao, September, 1909. 
Inhabiting rich moist humus covered soil in dense forests 
at 4000 feet, south of the Baruring river. The Bagobos call 
it Rader.” 
Related to E. lineare Stapf from mount Kinabalu, British 
North Borneo. 
Elatostema longipedunculatum Elm. .n. sp. 
Siem fleshy, terete, greenish or turning red, creeping 
and branched, the free ultimate branchlets descending but 
with suberect tips, 1.25 cm. thick; the branchlets thin- 
ner, the larger ones 1 m. long, subglabrous or with few 
scattering yellowish hairs. Leaves alternatingly scattered, hor- 
izontal or descending, flat, submembranous, dull green above, 
much lighter beneath, sordid green when dry, nearly equal, 
the larger blades 1 dm. long, 3 cm. wide across the middle 
or a trifle above it, subsessile or upon a short puberulent 
petiole, oblong or the smaller ones broadly oblanceolate, 
glabrous, without or with only a few scattered cystoliths on 
the upper side, the abruptly obtuse base entire and obliquely 
inequilateral, gradually tapering into the slender acuminate 
apex, rather coarsely and evenly serrately dentate from 
below the middle, slightly falcate and inequilateral, the upper 
and narrower side nearly straight, the lower gracefully 
curved and wider; midvein slightly curved, the lower side with 
about 7 ascendingly arched nerves, the upper side with only 5 
similar ones, the larger lateral nerves usually forked toward their 
ends, all more or less yellowish brown puberulent, retic- 
ulations very faint; stipules brown, glabrous, deciduous, 
Jaciniately linear, up to 1 cm. in length; peduncle usual- 
ly solitary from the uppermost leaf axils, greenish, 
very slender, strictly ascending, 2.5 to 5 cm. long or 
even longer, strigose toward the distal end, otherwise nearly 
glabrous; head greenish white, flattened, 7.5 mm. across; 
