200 
CLXIII. GRAMINEJ 2 . 
{IschcBmum. 
Slender creeping grasses; culms weak; leaves 
narrow; glumes thin. 
Racemes 3 to 6 in. long. 
Leaves glabrous; glume I not winged; awn 
spiral.(10) I. fluviatile 
Leaves hairy or glabrescent; glume I not 
winged; awn not spiral . . • (n) I. macrurum 
Leaves hairy; glume I winged, with a trans¬ 
verse depression . . . . . (12) I. apricum 
Racemes i to 2 in. long. 
Glume I lanceolate acuminate not winged; 
raceme 2 in. long.{13) I. aristatum 
Glume I broadly winged at tip; raceme i in. 
long . . . . . . . (14) I. timorense 
Raceme solitary . . . . . (15) I. Beccarii 
(1) I. rugosum Salisb. Ic. Stirp. Rar. i. t. i; Hack. Monogr. 
Androp. 206; Hook. fil. F.B.I. vii. 127; Ridl. Mat. iii. 157. 
Annual grass; culms ciliate at nodes, about 2 ft. tall. Leaves 
linear acuminate with scattered hairs, 9 in. long, *25 in. wide; 
racemes appressed, 3 in. long, thick. Spikelets green or yellow, 
erect, appressed, the rachis with hairs at base. Glume I oblong 
hard coriaceous, tip membranous rounded, below transversely 
wrinkled; glume II thinner, lanceolate acute; glume III thin, 
lanceolate acuminate paleate; glume IV bifid, awn *25 in. long. 
Hub. Not very common, in waste ground. Singapore, Galang. 
Negri Sembilan, Bukit Tangga Pass. Selangor, Weld s Hill, Kwala 
Lumpur (Burkill). Distrib. India, China, Malaya. Native name: 
Rumput Ekor Chawi. 
(2) I. imbricatum Stapf. MSS. 1 . aristatum var. imbncatum 
Hack. Monogr. Androp. 203; Hook. fil. F.B.I. vii. 127 (not of Linn.). 
Perennial moderately stout grass, i to 4 ft. tall. Leaves 
glabrous or hairy, 4 to 10 in. long, -25 in. wide, base narrowed 
sessile, ligule rather long. Racemes one or two, 2 to 5 in. long, stout, 
internodes shorter than spikelets, fragile, white-silky. Spikelets 
glabrous, -12 to 3 in. long. Glume I of sessile spikelet, oblong, 
blunt rigid, smooth or with two or three marginal nodules; glume II 
acute; glume IV shorter. Awn short rarely twice as long as 
spikelet, dark at base, pale above, Hab. Sandy open country in 
the north. Setul heath. Perlis, Bukit Hangat Besih, Kanga 
(Ridley). Distrib. India. 
This species appeared as a weed in the Botanic Gardens, Singapore, in 1905. 
(3) I. magnum Rendle, Joiirn. Bot. xxxii. (1894), p. 102; Hook, 
pi. l.c. F.B.I. vii. 128; Ridl. Mat. iii. 158. 
A large perennial grass 5 to 6 ft. tall, stout, nodes glabrous. 
Leaves 8 to 9 in. long, -5 in. wide, glabrous, base rounded; ligule 
bifid ciliate. Spikes two or three, erect, yellow, 4 to 7 in. long, thick. 
Spikelets -25 in. long; pedicel with a tuft of white hairs. Glume I 
oblong cartilaginous, tip thin ciliate, base transversely wrinkled 
or not; glume II coriaceous, incurved, as long; glume III lanceolate 
