376 The Philippine Journal of Science 1019 
ELATOSTEMA ROBINSONII sp. nov. 
Herba glabra, erecta, ramosa, 15 ad 30 cm alta; foliis nume- 
rosis, chartaceis, viridibus, oblongo-ovatis ad oblongo-ellipticis, 
sessilibus, 7 ad 15 mm longis, utrinque cystolithis numerosis 
instructis, acutis, basi 3-p!inerviis, inaequilateralibus, margine 
in I inferiore parte integris, supeme dentatis, dentibus paucis; 
inflorescentiis $ axillaribus, soiitariis, in siccitate flavido-viri- 
dibus, brevissime pedicellatis, 5 mm diametro; bracteis exterio- 
ribus late ovatis, carinatis, vix corniculatis, vel admodum ob- 
scure corniculatis. 
An erect, much-branched, glabrous herb, 15 to 30 cm high, the 
stems apparently succulent when fresh, hard when dry, and about 
4 mm in diameter, somewhat sulcate; lower branches up to 20 
cm in length, yellowish green when dry. Leaves numerous, 
chartaceous, green when dry, oblong-ovate to oblong-elliptic, ses- 
sile, 7 to 15 mm long, 4 to 7 mm wide, green when dry, both 
surfaces with numerous, large, irregularly disposed cystoliths, 
apex acute, base inequilateral, 3-plinerved, one side rounded or 
obtuse, the other acute, the margins entire in the lower one-half, 
above with 3 or 4 teeth on one side and 3 to 5 on the other, the 
teeth distinct, blunt, usually less than 1 mm long ; stipules linear- 
lanceolate, 2 to 2.5 mm long. Staminate receptacles axillary, 
solitary, numerous, yellowish green when dry, very shortly pedi- 
cellate, turbinate, about 5 mm in diameter, with as many as 14 
flowers, but few developing at one time; pedicels about 1 mm 
long; outer two bracts very broadly obovate, densely longitu- 
dinally striate, broadly rounded, 3.5 to 4 mm long, keeled, firm, 
sometimes very slightly comiculate; bracteoles membranaceous, 
oblong-obovate, about 3 mm long, somewhat thickened in the 
median part. Pedicels in anthesis 2 mm long. Sepals 4, mem- 
branaceous, oblong to elliptic-oblong, 2 mm long, two distinctly 
comiculate at their apices, the other two acute. 
Luzon, Ifugao Subprovince, Mount Polis, Bur. Sci. 19727 
McGregor, January 30, 1913, altitude not indicated. 
This species apparently belongs in the group with Elatostema 
benguetense C. B. Rob., but is entirely different from that and 
all other species known to me; the yellowish-green color of the 
branchlets and staminate receptacles is very characteristic. 
The late C. B. Robinson has indicated on the sheet “Elatostema 
sp. nov. = Vidal 3857.” 
ELATOSTEMA PILOSUM sp. nov. 
Herba erecta, sublignosa, ramosa, saltern 40 cm alta, ramulis 
densissime pilosis, subtus foliis ad costa nervisque perspicue 
