1 84 GramineCB. [Leersia. 



3. O. latifolia, Desv. Journ. Bot. i. jy (1813), var collina, Hk.f. 

 0. sativa, var. collina, Trim, in Journ. Bot. xxvii. 169 (1839). 0. sativa, 

 Thw. Enum. 357 (non Linn.). C. P. 2876. 



Fl. B. Ind. vii. 93 (0. latifolia, var. collina). Kunth, Revis. Gram. i. t. 4. 



Annual; stems 2-3 ft., tufted, erect, smooth, leafy, inter- 

 nodes long, nodes glabrous; 1. 1-2 ft. by \-\ in., narrowed 

 from the middle to both ends, finely acuminate, 5-7-veined, 

 almost smooth or scaberulous on both surfaces and margins, 

 base very narrow, sheath long, quite smooth, margins eciliate, 

 ligule short, rounded ; panicle 5-7 in., long-peduncled, branches 

 few, distant, alt., erect or spreading, rhachis slender, nearly 

 smooth; spikelets sessile or pedicelled, pedicel rarely half as 

 long as the spikelet; glumes I and II minute, ovate, acuminate 

 or subulate, white, II sometimes o, III deeply sulcate on 

 both faces, acuminate, or produced into an erect straight 

 capillary awn as long to twice as long as itself, tesselately 

 granulate and setulose, as is the palea. 



Rocky hills. Bridle path stream to Allacolla and Tirsa-maha-rama, 

 S. Prov. (Trimen), Kanagalla (Thwaites), top of Wahapot Kande Hill and 

 Balligala, in Kigala dist. (Ferguson). Spikelets glaucous grey. 



India, Burma, Trop. Afr., and Amer. 



A specimen in Herb. Peraden. is ticketed by Thwaites ' Colombo 

 Lake, Moon ;' but I think this must be an error, and that O. sativa had 

 been confounded with it. Dr. Trimen regards latifolia as undoubtedly a 

 small wild form of O. sativa. It is known as Hill Paddy. 



16. LEERSIA, Sw. 



Tall, perennial, slender, marsh grasses ; 1. narrow, flat ; 



spikelets i-fld., in slender contracted panicles, articulate on 



their pedicels, strongly laterally compressed ; glumes I and 



II o, III dimidiate-oblong, thinly chartaceous, keeled, not 



awned, keel pectinately ciliate, 3-veined, or 5-veined, the 



lateral veins forming the thickened margins of the glume, 



palea linear, as long as the glume, rigid, margins membranous, 



3-veined, dorsally ciliate; lodicules 2; stam. 6; styles short, 



free, stigmas plumose, laterally exserted from the glume; 



grain narrowly oblong, free within the glume and palea. — 



Sp. 7 ; 2 in Fl. B. Ind. 



Leersia differs from an awnless Oryza in which the glumes I and II 

 are suppressed, only in the thinner texture of the fig. glumes and palea. 

 Some species have 3 or fewer stamens. 



Xi. hexandra, Sw. Prod. Veg. Ind. Occ. 21 (1788). Eayoo, S. 



Thw. Enum. 356. L. ciliata, Koxb.; Moon, Cat. 7. C. P. 877. 



Fl. B. Ind. vii. 94. Host, Gram. Austriac. t. 35. Engl. Bot. t. 2908. 



Stems rooting in the mud with floating flexuous branches 

 several feet long, sending up erect or ascending slender leafy 



