349 



(1905) 132. Eriochloa punciaia F.-Vill. Nov. App. (1888) 310, non Hamilt. 

 Hclopus laevis Trin. in Spieng. Neue Entd. 2 (1821) 40; Wiq. Fl. Ind. Bat. 3 

 (1859) 434. Pipiathcrum nnnnlatum Presl Rel. Haenk. 1 (1828) 221. Sper- 

 machiton involutum Llanos Frag. PL Filip. (1851) 25. Milium zonatum Llanos 

 ]. c. 24? fJriocJdoa polysfachya Eendle in Forbes & Henisl. Journ. Linn. Soc. 

 Bot. 36 (1904) 230, non H. B. K. 



Luzon, Manila (7 Merrill) April, 1902: Province of Tayabas, Atinionan (130 

 (lirnory) August, 1904; (095 WJiilfonl) August. 1904. Palawan {A\^2.C,wnin) 

 IVFay, 190G. 



Tropics of the Old World. 



Var. involucrata Hackel, n. var. in herb. 



Pilis pedieellonini densis, spiculam plus minus Jnvolucrantil)us. 



MiNDORO, Puerto Galera (3333 Merrill) October, 1903. Boiiol (1247 Mc- 

 Gregor) .Time, 1900. 



(28) ISACHNE P. Br. 



Spikelets in panicles, two-flowered, both perfect, tlie fruiting glumes 

 with the grain falling out of the persistent empty ones. Mostly low 

 grasses. 



Species about 25, in the warmer parts of both hemispheres; G in the Philippines. 



1. Empty glumes glabrous or nearly so. 



2. Spikelets 1.5 mm. long or less; panicles small, rather dense (1) /. minutula 



2. Spikelets 2 mm. long; panicles often large, diffuse (3) /. heneckci 



1. Empty glumes hispid. 



2. Spikelets 2 mm. long (5) /. paueiflora 



2. Spikelets -less than 2 mm. long. 



3. Panicles spreading, lax (4) I. dcbilis • 



3. Panicles reduced to few, 3 to 10 spikelets, scarcely 



spreading (2) /. mi/osotis 



(1) Isachne minutula (Caudich.) Kunth Rev. Gram. 2 (1829) t. 117; Enum. 

 1 (1833) 137; Nees in Nov. Act Nat. Cur. 19 (1843) Suppl. 1: 172; Miq. Fl. 

 Ind. Bat. 3 (1859) 460; F.-Vill. Nov. App. (1883) 321; K. Schum. und Lauterb. 

 Fl. Deutsch. Schutzgeb. Siid-see (1001) 180; Mez in Perk. Frag. Fl. Philip. (1904) 

 141; Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 27. /. pulchella Mez in Perk. 

 Frag. Fl. Philip. (1904) 141, pro parte. Panicum minutulum Gaudich. in 

 Freycin. Voy. Bot. (1826) 410. Panicum macilentum Presl Rel. Haenk. 1 (1830) 

 110; Kunth Enum. 1 (1833) 116; F.-Vill. Nov. App. (1883) 312, ex descr. 



Luzon, Manila {Merrill) January, 1906: Province of Benguet (4389 Merrill) 

 October, 1905: Province of Bataan, Lamao {Whitford) September, 1905: Prov- 

 ince of Rizal, Morong (1390 Ramos) August, 1900: Province of Nueva Viscaya. 

 Quiangan (101 Merrill) June, 1902. Culion (462, 467 Merrill) December, 1902. 

 Basilan (44 DeVore tC- Hoover) April, 1903; (Hallier) January, 1904. Min- 

 danao, Davao (583 Copcland) March, 1904. Bucas (5275 Merrill) October, 

 1906. 



British India to Malaya and Polynesia; also in South America. 



(2) Isachne myosotis Nees in Hook. Kew Journ. 2 (1850) 98; Miq. Fl. Ind. 

 Bat. 3 (1859) 462; F.-Vill. Nov. App. (1883) 321; Vidal Phan. Cuming. Philip. 

 (1885) 156; Rev. PI. Vase. Filip. (1886) 268; Ceron Cat. PI. Herb. (1892) 179. 

 Panicum myosotis Steud. Syn. 1 (1855) 96. 



Luzon, Province of Benguet, Pauai (4709 Merrill) November, 1905: District 

 of Lepanto, Balili (4626 Merrill) November, 1905. MiNDORO, Mount Halcon 



