378 2^^^6 Philippine Journal of Science 1919 



stems at least 15 cm long, the branches 1.5 to 5 cm long, slender, 

 sparingly appressed hirsute. Leaves suborbicular to orbicular- 

 obovate, inequilateral, 5 to 13 mm long, brownish when dry, the 

 apex rounded or obtuse, base strongly inequilateral and shal- 

 lowly laterally cordate, entire below, the upper two-thirds on the 

 broader side with about 4 rounded teeth, the narrower side in 

 the upper one-third with 2 or 3 similar teeth, upper surface with 

 irregularly scattered, distinct, elongated cystoliths, these obso- 

 lete on the lower surface; stipules oblong-elliptic, membrana- 

 ceous, glabrous, usually obtuse to acute, 3 mm long. Staminate 

 receptacles axillary, solitary, sessile, about 5 mm in diameter; 

 bracts broadly obovate, about 5 mm long, sparingly hirsute, prom- 

 inently keeled, scarcely corniculate, the apex broadly rounded, 

 the inner ones thinner, somewhat hirsute, truncate, keeled, as 

 long as the outer ones, about one-half as wide ; bracteoles mem- 

 branaceous, hirsute, oblong-spatulate, narrowly oblong-obovate, 

 4 mm long, obtuse; sepals oblong-elliptic, membranaceous, about 

 2 mm long, two acute, two distinctly corniculate, all sparingly 

 ciliate at their apices. Pistillate receptacles axillary, solitary, 5 

 mm in diameter. 



Luzon, Ifugao Subprovince, Mount Polls, Bur. Sci. 19729 

 McGregor, February 14, 1913. 



The alliance of this species is with Elatostema obovatum 

 Wedd., from which it is especially distinguished by its smaller, 

 suborbicular leaves, which have much fewer teeth. 



ELATOSTEMA DIVERSILI M BUM sp. nov. 



Herba erecta, usque ad 30 cm alta, e basi decumbente, simplex 

 vel leviter ramosa, caulis adpresse hirsutis; foliis valde varia- 

 bilis, 1 ad 9 cm longis, 1 ad 4 cm latis, inaequilateralibus, pler- 

 umque obovatis ad oblongo-obovatis, glabris, cystolithis utrinque 

 numerosis, apice acuminatis, basi 3-plinerviis, leviter inaequi- 

 lateraliter cordatis, margine grosse dentato-serratis ; receptaculis 

 axillaribus, solitariis, sessilibus, 8 ad 10 diametro, bracteis exte- 

 rioribus rotundatis vel reniformibus, glabris, haud comiculatis, 

 bracteolis membranaceis, leviter ciliatis, spatulatis, 3 ad 4 mm 

 longis; sepalis 2 ad 2.5 mm longis, 2 distincte comiculatis. 



An erect or ascending herb from a decumbent base, up to 30 

 cm long, simple or sparingly branched, the stems succulent, when 

 dry brownish, more or less hirsute. Leaves chartaceous, green- 

 ish-olivaceous when dry, exceedingly variable, strongly inequi- 

 lateral, 1 to 9 cm long, 1 to 4 cm wide, the smaller ones on young 

 plants and on the few branchlets, mostly obovate to oblong- 

 obovate, distinctly acuminate, base somewhat narrowed, obtuse 



