XIV, 4 Merrill: Noteivo7^th7j Philippine Plants, XV 373 



This species belongs in the group with Elatostema ohovatifoUa 

 Wedd. and in many characters is similar to Elatostema elmeri 

 nom. nov. {E. pictum Elm., non Hallier f.), from which it is 

 easily distinguished by its appressed-hirsute branches, nerves, 

 and reticulations on the lower surface of the leaves ; Elatostema 

 elmeri is glabrous. 



ELATOSTEMA MACGREGORII sp. nov. 



Herba prostrata, usque ad 16 cm longa, ramis et subtus foliis 

 ad costa nervisque perspicue hirsutis; foliis subsessilibus, obo- 

 vatis ad oblongo-obovatis, 6 to 12 mm longis, inaequilateralibus 

 basi leviter oblique cordatis, dentibus in partibus superioribus 

 4 vel 5, conspicuis ; inflorescentiis $ tenuiter pedunculatis, brac- 

 teis exterioribus late ovatis, corniculatis, 9 sessilibus, bracteolis 

 perspicue ciliatis; floribus, 4-meris. 



A slender, prostrate or somewhat ascending, simple or spar- 

 ingly branched herb, the stems 16 cm long or less, the latter 

 with scattered, ascending or somewhat spreading, hirsute hairs. 

 Leaves green when dry, sessile or subsessile, obovate to oblong- 

 obovate, inequilateral, 6 to 12 mm long, 5 to 8 mm wide, the 

 apex obtuse to subacute, the apical part with 4 or 5 conspicuous, 

 usually rounded teeth, the margins in the lower two-thirds to 

 three-fourths entire, base rounded-auriculate on the broader side, 

 obtuse on the narrower side, somewhat obliquely cordate, the 

 upper surface glabrous and with scattered cystoliths, the lower 

 surface somewhat appressed-hirsute on the midrib and nerves, 

 the latter 2, rarely 3, on each side of the midrib, the cystoliths 

 obsolete ; stipules membranaceous, oblong, glabrous, about 2 mm 

 long. Staminate receptacles axillary, solitary, 4 to 5 mm in 

 diameter, their peduncles slender, glabrous, 1 to 2 cm long ; outer 

 bracts broadly ovate, about 4 mm long and wide, the apex rounded 

 or retuse, prominently keeled and corniculate, the apiculus about 

 1.2 mm long, glabrous or nearly so, the inner bracts oblong-ovate, 

 somewhat ciliate; bracteoles spatulate, sparingly ciliate, 3 mm 

 long. Flowers 4-merous, shortly pedicelled. Sepals oblong to 

 oblong-elliptic, 1.5 mm long, two slightly cucullate and minutely 

 apiculate, usually with a few long ciliate hairs above. Pistillate 

 inflorescences sessile, densely many-flowered, about 4 mm in dia- 

 meter, the bracteoles linear-lanceolate, about 2 mm long, prom- 

 inently ciliate. Flowers minute, shortly stalked. Achenes 0.8 

 mm long. 



Panay, Antique Province, Culasi, Bur. Sci. 32396 (type), 

 32Jf07, 32Jf38, 32538 McGregor, May 24 and June 14, 1918, in 

 damp forests, altitude 800 to 1,300 meters. 



