III. NOTES ON PHILIPPINE GRAMINE.4^. 



Bv E. Hackel. 



Some time ago a small collection of critical Philippine grasses 

 was sent to Dr. E. Hackel, Graz, Austria, for identification, who 

 kindly examined the same and submitted copious notes with his 

 identifications. These notes have been amplified and are here 

 presented. The diagnoses of the new species, in Latin, are pub- 

 lished as submitted by Dr. Hackel. — (E. D. M.) 



Pollinia argentea Trin., var. lagopus Hack., nov. var. 



Diffcit a typo vaginis in basi ciilino sitis fulvo-tomentosis (in typo 

 glabris) . 



Mount Arayat, Province of Pampanga, Luzon (3902 Merrill), October, 

 1904. In a small area of open dry grass land at the summit of the mount- 

 ain, altitude 870 m. above the sea. 



Pollinia quadrinervis Hack, in DC. MonoJ?. Phan., 6:158. 1889. 



This species, not previously reported from the Philippines, is represented 

 by a specimen from Baguio, Province of Benguet, Luzon (578.3 Elmer), 

 March, 1904, it growing in small tufts in the pine forests. The specimens 

 are not quite typical, in some respects approaching Pollinia villosa Spreng., 

 without being quite intermediate. China to subtropical Himalaya. 

 Isachne Beneckei Hack, in Oesterr. Bot. Zeitsch., 51:459. 1901. 



This species is represented by Xo. 464 Whitford and No. 3201 ^Icrrill, 

 Mount Mariveles, Province of Bataan, Luzon, July, 1904, growing on 

 recently burned places on exposed ridges at an altitude of about 1,200 m. 

 above the sea. Java. 



Isachne monticolor Biise in Miq. PI. Jungh. 379, 1855; Fl. Ind. Bat., 



3:401, 1859. Isachne debilis Rendle, Journ. Linn. Soc. Bot., 36:322. 



• 1904. 



Mount Mariveles, Province of Bataan, Luzon (2G4 Whitford) (3245 



Merrill); Baguio, Province of Benguet (5821 Elmer), March, 1904. A 



species originally described from Javan material, with the description of 



which the material cited above obviously agrees. Isachne debilia Rendle is 



apparently a synonym. 



