302 
ROBINSON. 
strigose; almost or quite trinerved, the nerves extending to the base of 
the lamina, auricle excluded, but on the wider side of the wider leaves 
little longer than the succeeding, other veins usually 3 on each side, some- 
times 2 or 4, minor' venation hardly conspicuous ; stipules narrowly 
lanceolate to ovate, 1 to 1.8 mm long, with crowded cystoliths and 
sometimes ciliate. 
Luzon, Subprovince of Benguet, Baguio, in ravines at about 1,400 m elevation, 
Bar. Sci. 13J/75 Iiamos. Superficially, the species has more the appearance of 
E. 'podophyllum Wedd. than of any other hitherto found in the Philippines, 
but differs widely from it in the slender stem, wider, larger and more deeply 
cut leaves, stronger and somewhat different venation, and the absence of the 
typical leaf-base. It is really in the alliance of the species from E. acrophilum 
to E. hastatum, and on a summary of characters' probably closest to E. philip- 
pinense Elmer, from which it differs by its more densely pubescent stem, and 
the shape, color, comparatively deeper and much coarser dentation, and venation 
of the leaves. It has also much resemblance to E. hookerianum Wedd., but 
that has the stems, staminate bracts, and bracteoles glabrous, these bracts are 
more corniculate, the leaves are usually more acuminate, with different venation, 
and longer stipules. Probably the closest alliance of all is with E. obliquifolium 
Reineelce, of Samoa, the name indicating one difference. The Philippine plants 
are larger with larger leaves, the Samoan have peduneled staminate receptacles. 
5. Elatostema filicaule C. B. Rob. in Philip. Journ. Sci. 5 (1911) Bot. 516. 
Additional collections, Merrill 7627, from mossy forest on Mount Tonglon, 
Benguet, and Phil. PI. 802 Merrill, from mossy forest at Pauai, Benguet, both 
growing at about ,2,200 m elevation, and reexamination of the type material, 
show that in the smaller-sized receptacles only one of each of the two inner 
pairs of staminate bracts may be developed. The larger-sized receptacles are 
of the type common to the genus. The species is, in all probability, a very 
primitive form. Pistillate flowers have not yet been collected. 
31a. Elatostema glomeratum sp. nov. 
Erectum, succulentum : feceptaculis staminiferis glomeratis, bracteis 
haud vel vix corniculatis ; floribus tetrameris : foliis siccis subchartaceis, 
elliptico-oblanceolatis vel elliptieo-obovatis, basi utrinque acutis vel latere 
latiore obtusis, margine basin versus excepto dentatis, apice breviter 
acuminatis, triplinerviis. 
Staminate receptacles sessile in clusters of 6 to 20 or more, but each 
retaining the structure typical of the genus • outer pair of bracts orbicular 
or broadly obovate, rounded at the apex, very shortly or not corniculate, 
2 to 2.5 mm long, ciliate or ciliate-serrate on the margins and shortly 
pilose on the dorsal surfaces ; inner pair's broadly oblanceolate, 2 mm 
long, shortly corniculate, pubescent like the outer; bracteoles narrowly 
oblanceolate, 2 mm long, densely pilose on the costa and at the apex ; 
pedicels about 0.5 mm long ; perianth-segments 4, lanceolate or oblong- 
lanceolate, the outer pair slightly longer than 1 mm and densely ciliate 
on the apical halves of the margins and at the apex, the inner pair slightly 
shorter than 1 mm and less densely ciliate than the outer, all shortly 
corniculate; filaments 1 mm long; anthers white, about 0.5 mm long. 
