192 CLXIII. GRAMINE^. [Dimeria. 
acute acuminate, edges white-bearded. Glumes III and IV shorter, 
hyaline. Awn *5 in. long, more than twice as long as the spikelet. 
Hab. Open sandy country in the north; Perlis at Kanga. Setul 
Heath (Ridley). Distrih. India, Ceylon, Tenasserim. 
The Malay form is much more hairy than the Indian one, the racemes and 
awns are much longer, and the rachis, except towards the tip, is quite straight 
not flexuous. ^ , 
(2) D. ornithopoda Trin. AgrosL 167, i. 14; Hack. Monogr. 
Androp. 81; Hook. fil. F.B.I. vii. 104; Ridl. Mat. iii. 
Tufted grass 6 to 15 in. tall, very slender; rhizome short. 
Leaves linear acuminate, i to 2 in. long, very narrow, sprinkled 
with white hairs. Culms capillary, pink. Racemes 2, sub-opposite, 
very slender, 1-5 to 2 in. long; rachis flexuous. Spikelets very 
small, linear, brown-pink, sessile. Glume 1 linear glabrous or 
puberulous on the edge, pink; glume II as long, broader; glume 
III shorter linear hyaline; glume IVlonger. Awn very fine, *2 in, 
long, three times as long as spikelet. Hab. Open dry grassy spots, 
often in grass plots, appearing sometimes abundantly and then 
disappearing entirely for some months, Singapore, Tanglin; Chan 
Chu Kang. Malacca (Hervey). Negri Sembilan, Seremban. 
Selangor. Penang, Waterfall Gardens (Burkill). Lankawi, Kwala 
Kwah (Haniff). Disirib. Indo-Malaya, Japan, Australia. 
(3) Kurzii Hook. fil. F.B.I. vii. 103. 
Small annual tufted grass. Leaves linear acuminate, -5 to i in. 
long, very narrow, glabrous. Culms very slender, 6 to 16 in. tall. 
Raceme solitary, purple, 1-5 in. long, very slender; rachis straight, 
broader than the spikelets, callus with white hairs. Spikelets very 
small and narrow. Glumes I and II linear fringed with white hairs. 
Awn hair-like, -25 in. long, lower third brown, twisted. Hah. 
Sandy open country, Setul Heath (Ridley). Distrib. Burma. 
(4) D. glabra Ridl. 
Tufted grass quite glabrous. Leaves narrow, 4 in. long, -05 in. 
wide, ligule very short. Culms slender, 8 to 12 in. long. Racemes 
two or three, 2-5 in. long, at first red, later pale; rachis minutely 
scabrid, undulate. Spikelets sessile, i in. long. Callus glabrous. 
Glume I narrow linear; glume II oblong keeled, edge broad, thin, 
white reddish ; glume III shorter, oblong, glabrous. Awn o. ’ Hab. 
Singapore, Holland Road, edge of a swampy hollow (Burkill). 
3. mPERATA, Cyrillo. 
Perennial grasses with a long, subterranean creeping rhizome. 
Leaves tufted, long, linear, acuminate. Culm tall. Panicle 
spiciform, simple or branched, woolly-silky. Spikelets small, 
binate, i-, or 2-flowered, lower flower incomplete or absent. Glumes 
4, lanceolate. Species 5 or 6, both hemispheres. 
Panicle not branched; stamens 2 . . . . (i) I. arundinacea 
Panicle branched; stamen i . . . . . (2) I, exaltata 
