264 The Philippine Journal of Science 1914 



ing their nests. One nest examined by members of our party^ containing 

 numerous eggs, consisted of a large mound made entirely of sand and this 

 grass very closely packed. 



The species is manifestly allied to Ischaemum aristatum Linn., but differs 

 in 60 many characters that it has been considered advisable to treat it as 

 a distinct form. 



ISCHAEMUM PUBESCENSsp. nov. § Euischaemum. 



Species /. aristato afRnis, differt foliis pilosis, spiculis paullo 

 minoribus, glumis I spiculae sessilibus utrinque nodulis 2 obs- 

 curis praeditis, dorso parce piloso. 



An erect perennial grass about 1 m high, the sheaths and 

 leaves rather softly pilose with long white or pale hairs, the 

 nodes rather densely ciliate-bearded, the internodes, under the 

 sheaths, somewhat glaucous, about 3 mm in diameter. Leaves 

 narrowly lanceolate, 10 to 18 cm long, 8 to 12 mm wide, acu- 

 minate, base of the upper ones truncate, of the lower ones 

 narrowed, margins scabrid, both surfaces softly pilose with 

 scattered, long hairs; sheaths rather lax, pilose; ligule brown, 

 cleft, somewhat pubescent, 2 to 3 mm long. Racemes binate, 

 closely appressed, 8 to 10 cm long, long-exserted, rather promin- 

 ently white-ciliate, the joints 3-angled, bearded on all angles, 4 

 mm long. Sessile spikelets oblong, obtuse, about 5 mm long, 1.8 

 mm wide, the callus bearded ; first glume coriaceous, obtuse, mar- 

 gins inflexed throughout, with two, broad, obscure undulations 

 (scarcely nodules) near each side in the lower part, the back 

 usually with very few, scattered, ciliate hairs; second glume 

 lanceolate, acuminate, somewhat keeled, 5 mm long; third and 

 fourth glumes hyaline, the fourth cleft to the middle, bearing in 

 the cleft a geniculate, somewhat twisted, scabrid awn about 

 13 mm long. Pedicellate spikelets dimidiate, 5 to 6 mm long, 

 the pedicels stout, 2 mm long, bearded ; first glume widely winged 

 on one side, springly ciliate-pilose on the back, smooth, the 

 wing obscurely denticulate. 



DUMARAN, Bur. Sci. 21639 Escritor, August, 1913. 



Similar to Ischaemum aristatum Linn., and manifestly allied to that 

 species. It is characterized, however, by its prominently pilose leaves and 

 sheaths, its white-ciliate racemes, and the first glume of the sessile spikelets 

 with very obscure marginal undulations which can scarcely be called 

 nodules; the very short rachis-joints, and the bearded callus is also charac- 

 teristic. 



CYPERACEAE 



ELEOCHARIS R. Br. 



ELEOCHARIS ACICULARIS (L.) R. & S. Syst. 2 (1817) 154; Clarke in 

 Hook. f. Fl. Brit. Ind. 6 (1893) 628, et in Journ. Linn. Soc. Bot. 36 

 (1903) 225. 



