30G ROBINSON. 
continuing tlie general outline; upper surface with not very conspicuous 
cystoliths and usually witli scattered Imt conspicuous fairly long white 
hairs, under surface with shorter and often yellowish pubescence on the 
veins and to a less extent between them; triplinerved or with a short 
additional nerve arising from the costa below the main nerve of the 
wider side; other veins usually 3 on each side of the costa; stipules 
hyaline, lanceolate, 2.5 to 3 mm long, ciliolate on the margins and at 
or near the apex often ciliate. 
Luzox, Subprovince of Benguetj jMount Tonglon, in very shaded places along 
trail at about 1,800 m elevation, Merrill IG'p. The closest Philippine ally of 
thi.s species is probably E. acrophllmn C. B. Bob., of which the sUuuinate re- 
ceptacles are still unknown, E. merrillii differing from it by the more pubescent 
stems, more numerous and shallower leaf-teeth, and venation. 
r 
33a. Elatostema purpureum sp. nov. 
Basi reptans, aliter ascendens, caulibus purpureis, seabris: recepta- 
culis staminiferis sessilibus vel breviter pedunculatis, bracteis vix corni- 
cidatis; floribus tetramcris: receptaculis pistilliferis sessilibus: foliis 
subsessilibuSj oblique obovatis vel oblancoolatis, basi latere angustiore 
acutis, latere latiore breviter auriculatis, marginibus dentatis, apice saepius 
breviter acuminatis, triplinerviis, 
Staminatc receptacles sessile or on peduncles up to about 3 mm long; 
outer pair of bracts 4.5 to 5 mm long, 6.5 to 7 mm wide, rounded and 
very shortly and inconspicuously comiculate at the apex, densely villose 
on the back; inner two pairs of bracts 3.5 to 4 mm long, somewhat 
inequilateral, subquadrate or suborbicular, the margins more or less 
hyaline, elsewhere villose, ciliate at the apex, hardly corniculate; bracteoles 
oblong-oblanceolate, 4 mm long, villose on the costa, ciliate at the apex; 
pedicels up to 3.5 mm long; perianth-segments 4, oblong-lanceolate or 
lanceolate, 1.5 to 3.5 mm long, ciliate or glab]-ous, one pair corniculate; 
filaments about 2 nun long; anthers white, about 1 mm long: pistillate 
receptacles sessile; outer pair of bracts broadly ovate, 3.5 mm long, villose; 
inner pairs lanceolate, nearly 3 mm long, ciliate at the apex; pedicels 
short; perianth-lobes probably 3, about 0.1 mm long; ovary wliite, 0.5 mm 
long. 
Plants creeping at the base, thereafter curving-ascending, the purple 
stems 20 to 35 cm long, rarely branched, strigose: leaves almost sessile, 
the rigidly chartaceous or coriaceous lamina oblanceolate to obovate, 3 
to 5 cm long, 1 to 1.8 cm wide, the base of the narrower side acute, of 
the wider side shortly auriculate, the margins on the wider side with 
7 to 14 teeth, on the narrower with 5 to 11, the apical tooth more often 
extending from 4 to 6 mm beyond the general outline; both surfaces 
strigose-scabrous, the upper with numerous cystoliths; triplinerved, the 
nei-ve of the wider side more often uniting with the lower of the succeeding 
3 to S veins by minor anastomoses only, veins of the narrower side 2 or 3 ; 
