Isachne.] 
CtXIII. GRAMINE^. 
237 
Glumes I and II about as long as glume IV. 
Glumes III and IV equal and similar. 
Panicle wide spreading; leaves 4 to 8 in. long 
Panicle denser; leaves 2 in. long . ' 
Panicle dense; leaves broad hairy; spikelets 
pubescent , . • • • . ' 
Panicle small, wide; leaves ovate, i in. long. 
remote , . • • • * .n ' 1 I 
Glume III larger than glume IV, ovate flat; plant 
tall slender 
Glume HI shorter than glume IV; dwarf plant 
{3) 1. albens 
(4) 1. javana 
(5) I. sylvestris 
(6) I. rigida 
(7) I. australis 
( 8 ) I. miliacea 
(1) I. semitalis Ridl, I. Kunthiana Ridl. Mat. iii. 128 (not of 
^ A slender creeping grass ascending to 9 in. tall. Leaves broad 
lanceolate, acuminate sub-acute, base very shortly narrowed, hairy, 
sheaths strongly white bearded on the edge, -5 to 1-25 in. long, 
•15 to -25 in. wide. Panicle i in. long, with few short branches 
■'^5 in long or less, at first erect, later spreading. Spikelets *05 in. 
long, green. Glume I lanceolate; glume II longer, ovate-lanceolate, 
both closely ribbed and softly hairy; glumes III and IV much 
shorter, smooth ellipsoid, tips pubescent. Hah. In damp open 
spots in forests, along open streams and pathways. Not rare. 
Singapore, Selitar; Tanglin; Bukit Mandai. Johor, third mile 
from town. Selangor, Rantau Panjang (Kloss); Rawang. Dmd- 
ings, Gunong Tungul (Ridley). Distrib. Borneo. 
This species was referred by Hooker F.B.I. vii. 21 to I. Kunthiana, Wight, 
but it differs in the unequal size of glumes I and 11 and m their being much 
more closely ribbed and softly hairy. In I. Kuntinana, Wight, they are 
bristly, the bristles arising from a swollen base. 
(2) I. saxicola Ridl. I. javana var. saxicola Ridl. F.M.S. 
Mus. vi. 196. ^ ^ . n T 
A tufted rigid plant, glabrous or hairy, 6 in. tall. Leaves 
coriaceous stiff, lanceolate acute, finely ribbed, no distinct midrib, 
edges at base at least when young wLite-ciliate, *5 to i in. long, 
•12 to 2 in. wide ; sheaths -25 in. long. Panicle 2 to 3 in. long, of 
about 4 to 6 erect branches, glabrous, Spikelets 4 to 7 on a branch, 
sub-sessile, -08 in. long. Glumes I and II equal lanceolate, glabrous, 
obscurely’4-ribbed, green or purple; glumes III and IV semi¬ 
ellipsoid, pubescent, shorter. Hah. High mountains in cracks of rocks 
in streams at 6000 ft. altitude. Pahang, Gunong Tahan (Ridley). 
var. denticiilata Ridl. a stouter and taller plant, 9 in. tall. Leaves 
and sheaths very hairy, base of leaves on edges ciliate, the cilia 
rising from short processes on the leaf edge, and when fallen leaving 
the edge toothed. Hah. Perak, Gunong Kerbau (Robinson). 
(3) I. albens Trin. Sp. Gram. Ic. t. 25; Hook. F.B.I. vn. 22; 
Ridl. Mat. iii. 128. ^ ^ ^ . . 
Culms solitary, erect, sometimes branched, geniculate, i to 
2 ft. tall. Leaves linear-lanceolate acuminate, thin, base blunt, 
striate, midrib prominent, glabrous, 4 to 8 in. long, *5 in. wide. 
1?^ 
