221 
Pseudechinolcena.] cLxiii. GRAMlNEiS. 
armed with hooked bristles; glume III broad ovate blunt, male, 
glume IV shorter, boat-shaped. Species i, India, Africa, Java, 
South America. .... • 
(i) P. polystachya Stapf. FI. Trop. Africa ix. 495. Panicum 
uncinatum Radde, AgrosL Braz. 41; Hook. fil. F.B.I.wn. 58. 
Echinolaena polystachya H.B.K. Nov. Gen. and Sp. FL 1. 119, 
^ass ascending to 18 in. tall. Leaves 2 to 4 in. long, -25 in. 
wide, base oblique, sheath ciliate. Panicle i to 3 in. long, branches 
2 to 6, about I to 2 in. long. Spikelets -2 in. long, about 4 on a 
branch Hah. Rare and local on banks m woods. Pahang, Ulu 
Sungei Merapoh (Nur). Selangor, Menuang Casing (Kloss). Perak, 
Temengoh (Ridley). 
34 . OPLISMENUS, Beauv. 
Slender creeping ascending grasses with thin ovate or lanceo¬ 
late leaves generally softly hairy. Racemes distant on a simple 
or branched inflorescence; rachis slender, not flattened. Spike-' 
lets oblong distant, secund on one side of the rachis. Glume 1 
with a long straight awn; glume II awnless or awned; glume III 
awned shortly; glume IV lanceolate acute. Species 15, all warm 
parts of the world. 
Small plant; leaves -5 to 1-25 in. long; ascending 
culms 6 in. long; racemes *3 in. long . . ■ (i) 0. Burmanni 
Taller plant; leaves 2 to 4 in. long; culms 15 m. tall; 
racemes 1-5 to 3 in. long . . • * • (2) 0. compositus 
(1) O. Burmanni Beauv. Agrost. 541 Hook. fit. B.B.I. vii. 66, 
Ridl. Mat. hi. 145. ^ ^ , 
Creeping plant, with erect culms 6 in. tall. Leaves sparsely 
white-hairy, ovate-lanceolate to lanceolate, -5 to 1*25 in. long, 
•25 in. wide. Racemes 4 or 5, white hairy, -25 to *5 m. long. 
Spikelets crowded imbricate. Glume I lanceolate, awn wlnte 
scabrid; glume II as long, awn more than twice as long as spike- 
let; glume III awn shorter; glume IV smooth lanceolate acute. 
Hab. Sandy dry spots, local. Penang, Sepoy lines and near Water¬ 
fall Gardens (Curtis); JIagan Lepas under Coconuts (Burkill). 
Distrih. Tropics of Old World. ,.77-07- - ■ 
(2) O. compositus Beauv, Agrost. 24; Hook. fil. r.B.l. vii. 60, 
Ridl. Mat. hi. i 45 - , „ 1 , 1 • 
Creeping, ascending plant, i to 2 ft. tall, glabrous or hairy. 
Leaves lanceolate acuminate, base broad, thin, 3 to 5 m. long 
•25 to I in. wide, many-veined, often quite glabrous. Racemes 5 
or 6, distant below, pubescent or hair; rachis angled. Spikelets 
solitary, or two or three fascicled, distant secund, hairy. Glume I 
lanceolate awned; glume II longer or shorter, ovate; awn *3 in. 
long; glume III longer broader, acuminate or blunt, glabrous or 
hairy; glume IV lanceolate acuminate. Hah. On banks and dry 
