262 ^^^6 Philippine Joinmal of Science im 



apex, the lower surface somewhat pilose with scattered white 

 hairs, the hairs arising from minute papillae, the upper surface at 

 first papillate and sparingly pilose, becoming scabrid. Panicles 

 exserted above the upper leaves, the peduncles 1.5 cm long or less, 

 narrow, 1 to 2 cm long, less than 5 mm wide, the branches ap- 

 pressed, the lower ones 6 mm long or less and usually 4-flowered, 

 the upper ones shorter, the uppermost usually bearing solitary 

 spikelets. Spikelets crowded, about 1.8 mm long, more or less 

 tinged with purple. Empty glumes about 1.8 mm long, slenderly 

 7- or 9-nerved, slightly hispid externally in the upper part, obtuse. 

 Flowering glumes two, the lower one elliptic-oblong, obtuse, 

 quite glabrous, 1.6 mm long, the upper one ellipsoid, slightly 

 ciliate near the apex, usually about one-third shorter than the 

 lower one. 



Luzon, Province of Laguna, Dahican River back of San Antonio, Bur. 

 Sci. H9H. Ramos, June, 1912, on stones along the river. 



A rather characteristic species, distinguishable by its very narrow, 

 dense panicles. It is perhaps most closely allied to Isachne pauciflora Hack., 

 but is distinguished by its narrow leaves and glabrous flowering glumes. 



DIMERIA R. Brown 



DIMERIA CILIATA sp. nov. 



Caespitosa, erecta, vaginis foliisque pilis longis albis mollibus 

 instructis; racemis digitatis vel subfasciculatis, 4 ad 6, tenuibus, 

 usque ad 12 cm longis, rhachibus circiter 0.7 mm latis, triangu- 

 laribus, glabris vel leviter pubescentibus ; spiculis 4 mm longis, 

 glumis I et II carinatis, carinis longe ciliato-pilosis. 



A densely tufted, erect, perennial grass 50 to 80 cm high, the 

 culms slender, the sheaths and leaves rather densely clothed with 

 long, soft, white hairs, some longer (5 mm) and somewhat stiff er 

 ones intermixed with the shorter and softer ones, the nodes 

 bearded. Leaves linear-lanceolate, acuminate, base slightly or 

 not narrowed, 8 to 15 cm long, 3 to 4 mm wide, softly ciliate- 

 pilose on both surfaces; ligule about 1 mm long, truncate. In- 

 florescence long-exserted, of 4 to 6 digitate or fasciculately 

 arranged racemes, the racemes slender, 7 to 12 cm long, at fii-st 

 pale, soon turning pale-brownish, the rachis 3-angled and some- 

 what flattened, about 0.7 mm wide, glabrous or slightly pubescent, 

 the internodes 2 to 4 mm long. Spikelets 4 mm long ; first glume 

 somewhat boat-shaped, keeled, 4 mm long, acute or obtuse, prom- 

 inently ciliate-pilose with long white hairs on the keel; second 

 glume similar but lanceolate, and also prominently ciliate-pilose 

 on the keel ; third glume shorter, hyaline, the awn slender, about 

 10 mm long. 



