20, 4 Merrill: Noteworthy Philippine Plants, XVII — 375 
A very strongly marked species, well characterized by its con- 
spicuous cystoliths and its nearly entire, lanceolate, very slightly 
inequilateral, obscurely nerved leaves. 
ELATOSTEMA EUPHLEBIUM sp. nov. 
Herba suffruticosa, erecta, ramosa, caulis teretibus, 4 ad 6 
mm diametro, ramis adpresse cinereo-hirsutis; foliis lanceolatis, 
subcoriaceis, rigidis, inaequilateralibus, 4 ad 8 cm longis, oli- 
vaceis, caudato-acuminatis, margine acute et grosse serratis, 
dentibus acuminatis, supra cystolithis numerosis instructis, ju- 
nioribus plus minusve ciliatis, nervis utrinque 6 vel 7, impressis, 
subtus valde perspicuis et adpresse hirsutis; stipulis 4 mm 
longis; inflorescentiis ¢ solitariis, sessilibus vel subsessilibus, 
usque ad 6 mm diametro, multifloris, bracteis exterioribus or- 
biculari-ovatis, rotundatis, leviter ciliatis, liberis, bracteolis 
-angustis, ciliatis, floribus 4-meris, lobis oblongo-ovatis ad spat- 
ulatis, 2 mm longis, haud corniculatis, 2 leviter cucullatis, 
supra leviter ciliatis. 
An erect or ascending, much-branched, suffrutescent plant, 
the stems distinctly woody, terete, 4 to 5 mm in diameter, the 
branches usually 20 cm long or less, appressed-hirsute with 
cinereous hairs. Leaves inequilateral, lanceolate, rigid, sub- 
coriaceous, 4 to 8 cm long, 10 to 18 mm wide, olivaceous, the 
apex caudate-acuminate, base inequilateral, acute on the nar- 
rower side, obtuse on the broader side, the margins sharply and 
rather coarsely serrate, the teeth somewhat acuminate, the upper 
surface with numerous cystoliths and when young supplied with 
numerous, stiff, white hairs, these hairs more or less deciduous 
on the older leaves, some, however, usually persisting, their 
bases often thickened, the lower surface paler than the upper, 
the midribs and nerves appressed-hirsute, the cystoliths con- 
spicuous, the midrib and lateral nerves impressed on the upper 
surface, very prominent on the lower surface, the lateral nerves 
6 or 7 on each side of the midrib, arched-anastomosing; stipules 
lanceolate, acuminate, about 4 mm long. Staminate inflores- 
cences axillary, solitary or in pairs, sessile or very shortly pe- 
duncled, up to 6 mm in diameter, many-flowered, outer bracts 
orbicular-ovate, about 3 mm long, rounded, somewhat ciliate, 
free, the bracteoles narrow, ciliate. Flowers 4-merous, the lobes 
oblong-ovate to spatulate, 2 mm long, slightly ciliate above, two 
of them slightly cucullate, none spurred. 
LUZON, Bontoc Subprovince, Mount Pukis, Bur. Sci. 37765 
Ramos & Edafio, March 10, 1920. On forested slopes, altitude 
about 1,800 meters. 
