821 



January, 1903: Province of Rizal, Bosoboso (1853 Merrill) April, 1903: Prov- 

 ince of Batahgas, Lipa (112 Marave) December, 1895: Province of Tayabas, 

 (Infanta) Binangonan (832 Wkitford) September, 1!)()4. Mindoko, Baco River 

 (203 McGregor) April, 1905. Palawan. Tanabag (323 Bermejos) January, 1906. 

 Bat.abac (437 Mangubat) March. 1906. Mindanao. Davao (053 Copelarid) 

 March, 1904: Lake Lanao, Camp Keithley (52 Clement) .January, 1000. 



Widely distributed in the Philippines; wanner parts of the world. T.. Tight, 

 Cudlasan; V., Adlayj B., Cueldasan ; Ig., Agda, 



Yar. ma-yuen (Roman.) Stapf. in Hook. f. Fl. Brit. hid. 7 (1897) 100. 

 Coix ma-yuen Roman, in Hull. Soc. Acclim. Paris 111. 8 (1881) 442. 



LUZON, Province of Rizal, Montalhan (3394 Muni's collector) November. 1905. 

 JOLO, Mount Dajo (5326 Merrill) October. 1906. 



British India to Cochin China and Borneo. T.. ) las. 



Tribe II. ANDKOPOGONE^. 



Spikelets in spike-like racemes, two, rarely only one. at each joint of 

 the usually articulate rhachis, one sessile and one pedicellate. Spikelets 

 generally 1 -flowered, with three empty glumes, the first empty glume 

 always more indurated than the flowering glume, the latter usually 

 hyaline and hearing a bent or twisted awn. 



(5) DIMERIA R. Br. 



Spikelets 1-flowered, linear, laterally compressed; first empty glume 



keeled. Flowering glumes awned. Spikes digitate. Very slender 

 grasses. 



Species 12, British India to South China, Malaya and north Australia; one in 

 the Philippines. 



(1) Dimeria orinthopoda Trin. Fund. Agrost. (1820) 107. t. /}. var. tenera 

 (Trin.) Hack, in DC. Monog. Phan. 6 ( 1880) 81. Dimeria tenera Trin. in Mem. 

 Acad. St-Petersb. VI. 2 (1833) 335. K.-Vill. Nov. App. (1883) 315. I), orin- 

 thopoda Merr. Philip. Journ. Sci. 1 (1!)06) Buppl. 25. 



LUZON, Province of Bataan, Lamao River (3283, 3773 Merrill) October, 1903, 

 January, 1904: Province of Rizal, Caloocan (3070 Merrill) November, 1903; 

 Antipole (15 Foanoorthy) January, 1906. 



British India to Japan, Malaya, other varieties extending to tropical Australia. 



(F.-Villar enumerates Haplachne pUoeiasima Presl, and Andropogon ohloridi- 

 formis Gaudich., as distinct species, but without really crediting them to the 

 Philippines. Roth are synonyms of Dimeria pilosistima Trin.. a Marianne Island 

 species. ) 



(0) IMPERATA Cyr. 



Spikelets l-flowered, densely clothed with long silky hairs. Empty 

 glumes membranous, narrow, the two outer with long hairs. Flowering 



glume small. Stamens 1 to 2. Panicles narrow, usually spike-like. 

 Species 5, tropica] and subtropical regions of the World; two in the Philippines. 



1. Panicle narrow, spiciform, the branches short, appressed ; first glume 



5 to 9 nerved; stamens 2 (1)7. cylindrica 



1. Panicle thyrsiform, branches usually elongated, sometimes spreading; 



first glume 3 to 5 nerved; stamens 1 (2)7. exaltata 



