346 



(4) Paspalum distichum Linn. Amoen. Acad. 5 (1780) 391 j Rook. f. PI, 

 Brit. End. 7 (1897) 12; Rendle in Forbea & Hemsl. Journ. Linn. Sue. Hot. 36 

 (1904) 319; Usteri Beitr. Kenn. Philip. Veg. (1905) L83; F.-Vill. Nov. App, 

 (1883) 310. Paspalum longiflorum Retz.; Presl Rel. Baenk. 1 (1830) 20S. 

 Paspal um <li<jit<i)i<t Poir. in Lan. Encycl. 4: 316. 



Luzon, Province of Pampanga, San Esteban (4-2.">3 Merrill) September, 1906. 

 Sam.vk. (Iras (5229 Merrill) October, L906. 



Tropical ami warm countries generally. 



EXCLUDED SPECIES. 



Paspalum eleoans Flttgge; F.-Vill. Nov. App. (1883) 310, an American 

 species, Villar's identification undoubtedly being erroneouB. 



Paspalum chbtsotrichum Presl Rel. Haenk. 1 (1830) 211; Kunth Enum. 1 



(1H33) (I4: Miq. I'l. hid. Bat. 3 (1859) 431; F.-Vill. Nov. App. (1883) 310. 



"Habitat in Luzonia" Presl. Probably erroneously localized and a native of 

 tropical America, not the Philippines. From the description it appears to he a 

 synonym of Paspalum aureum II. I!. K.. an American species. 



Paspalum bobyanuu Presl Rel. Haenk. 1 (1830) 209; Kunth Enum. 1 (1833) 

 52; Miq. Fl. Ind. Hat. 3 (1859) 432; F.-Vill. Nov. App. (1883) 310. 



•'llah. ad Sorsogon" Presl. Although credited t<i Luzon by Presl, this may he 

 an American species. It is possibly referable to Digitaria. 



(26) DIGITARIA Scop. 



Spikes usually digitately arranged at the summit of the culms. Spike- 

 Ids narrow, acute or acuminate, in twos or threes OB one side of a Hat. 

 winged, or triangular rhachis; glumes three or lour, the three outer ones 

 membranous, the lirst often minute or wanting. 



Species about 12."). widely distributed in tropical and temperate regions, by 

 some authors referred to Paspalum, by others to Panicumj five species in the 

 Philippines. 



i. Spikeleta about '■'• mm. long. 



2. Spikes many, 10 to 20, scattered or whorled along a 



somewhat elongated axis .. ... < 2 I l>. COTWanguinea 



2. Spikes few, 2 to 0, digitate or approximate at t lie apex of 



the culm ...... ( 1 ) I> smniiiiiinlis 



I. Spikelots about 1.5 mm. long. 



2. Spikes digitate or approximate at the ends of the culms. 



3. Spikes usually two or three, less than 5 cm. long; 

 CUlms short, erect from a prostrate creeping 



base (3)1). longiflora 



3. Spikes 3 to 10, frequently 10 em. long ; culms 

 elongated, erect, the base scarcely prostrate or 



creeping - .......... ..... Hi i>. viottucena 



2. Spikes alternate, scattered along the somewhat elongated 



common rhachis (5) I>. pedicellarts 



(1) Digitaria sanguinalis (Linn.) Scop. Fl. tarn. ed. 2, 1 (1772) 7>2 ; 

 Miq. Fl. Ind. Hat. 3 (1859) 437; Rendle in Forbes & Hems]. Journ. Linn. Boc. 

 Hot. 36 (1904) 325. />. inaequalis Spreng. Syst. 1 (1826) 271. I>. biformis 

 W'illd. Enum. (1809) ( .»2. />. radicosa Miq. Fl. Ind. Bat. 3 (1859) 437. Panioum 

 Banguinale Linn. Sp. PI. (17-").'!) r>7. /'. didactylum Kunth: Hack, in Govt. Lab. 

 Publ. 35 (1905) St). /'. radicosum Presl Rel. Haenk. 1 (1830) 297; Kunth 

 Enum. 1 (1S33) 81; F.-Vill. Nov. App. (1883) 311, ex descr. Paspalum s<niti>(i- 

 nale Lam. Tabl. Encycl. 1 il7'.»li 176; Hook. f. Fl. Brit. End. 7 (1897) Li. 

 Paspalum inaequale Link in Kunth Enum. 1 (1833) 4S ex descr. Panicum 



