376 The Philippine Journal of Science 1922 
This species has much the habit of Elatostema kalingaense 
Merr. and, like that species, resembles in vegetative characters 
E. contiguum C. B. Rob. It differs from Robinson’s species in 
the same characters as does E. kalingaense, and from the latter 
species in its much thicker, very conspicuously nerved leaves, 
the midribs and lateral nerves being strongly impressed on the 
upper surface. 
ELATOSTEMA KALINGAENSE sp. nov. 
Herba ramosa, glabra, caulis deorsum decumbens, ramis ad- 
presse strigoso-hirsutis; foliis membranaceis, lanceolatis, leviter 
falcatis, 4 ad 6 cm longis, tenuiter caudato-acuminatis, margine 
grosse serratis; inflorescentiis ¢ solitariis, sessilibus, 5 mm 
diametro, perspicue ciliatis, bracteis liberis, exterioribus late 
ovatis, acuminatis, 4 mm longis, bracteolis oblongis ad spatulatis, 
ciliatis; floribus 4-meris, sessilibus, segmentis perspicue ciliatis, 
haud corniculatis. 
An ascending, branched herb, the lower parts of the stems 
creeping or prostrate and rooting where in contact with the sub- 
stratum, greenish-olivaceous when dry, with numerous cysto- 
liths, glabrous or nearly so, the younger branches appressed- 
strigose-hirsute, rather slender. Leaves membranaceous, dark 
green when dry, lanceolate, somewhat falcate, 4 to 6 cm long, 
9 to 12 mm wide, the apex slenderly caudate-acuminate, the base 
inequilateral, acute on the narrower side, rounded to obtuse on 
the broader and longer side, the margins coarsely serrate, the 
teeth somewhat acuminate, the upper surface with numerous ir- 
regularly disposed cystoliths and with few, stiff, elongated, some- 
what curved hairs from swollen bases, the lower surface slightly 
paler than the upper, the cystoliths distinct, the midrib and 
nerves more or less appressed-strigose-hirsute; stipules linear, 
lanceolate, about 2mm long. Staminate inflorescences axillary, 
solitary, about 5 mm in diameter, many-flowered, conspicuously 
ciliate with grayish hairs, the bracts free, the outer ones broadly 
ovate, acuminate, prominently ciliate, about 4 mm long; brac- 
teoles oblong, spatulate, ciliate and nearly as long as the bracts. 
Flowers numerous, sessile, 4-merous, the perianth segments ob- 
long to spatulate, obtuse, 2 mm long, two somewhat cucullate, 
none spurred, all conspicuously ciliate above. 
LuzON, Kalinga Subprovince, Mount Masingit, near Lubuagan, 
Bur. Sci. 87498 Ramos & Edafio, February 16, 1920. On 
bowlders or ledges along streams, altitude about 1,200 meters. 
This species in vegetative characters closely approximates 
Elatostema contiguwm C. B. Rob., but differs radically in its 
