226 CLXIII. GRAMINE^. [Paniciwh 
ribbed; glume IV shorter, elliptic blunt. Hub. Pools in swamps, 
rare. Pahang, Pekan (Ridley). Disirib. Tropics generally. 
(6) P. auritum Presl. in Nees, A^rostologia Brazil. 176; Hook, 
fil. F.B.I. vii. 40; Ridl. Mat. hi. 135. 
A stout grass 3 to 6 ft. tall and sometimes *5 in. through at 
base. Leaves linear-lanceolate, long-acuminate, base cordate, 
6 to 10 in. long, -25 to 1-25 in. wide, glabrous or hairy beneath, 
edge scabrid. Panicle 6 to 18 in. long, of very numerous strict 
appressed racemes i to 275 in. long, densely floriferous. Spikelets 
light brown, on very short pedicels, ellipsoid or fusiform, blunt. 
Glume I short ovate blunt, one-third the length of glume III; 
glumes II and III ovate oblong, blunt, ribbed; glume IV lanceolate 
acuminate, smooth. Hab. Marshes and river banks. Common. 
Singapore, Reservoir; Changi; Ang Mo Kio. Johor, Kwala 
Sembrong (Kelsall); Kluang (Holttum). Malacca {Griffith, Cuming); 
Alor Gajah Road (Ridley). Pahang, Pekan; Tahan River; Khol 
near Tembeling. Selangor, Batu Caves; Klang (Burkill). Perak, 
Thaiping Waterfall; Jenah (Wray); Goping (Kunstler). Tanjong 
Malim (Burkill). Province Wellesley, Krian. Penang (Porter); 
Waterfall Gardens (Curtis). Kelantan, Kwala Relai (Haniff). 
Disirib. Indo-Malaya, China. 
{7) P. perakense Merrill, Phil. Journ. Sc. Bot. xi. 52. P. 
humidorum var. perakense Hook. fil. F.B.I. vii. 53; Ridl. Mat, 
hi. 137. 
A slender grass 3 to 10 ft. tall. Leaves narrow linear acuminate, 
base sub-cordate, glabrous, 6 in. long, -25 in. wide. Panicle 9 to 
12 in. long, wide, spreading with filiform branches. Spikelets very 
small, ellipsoid blunt, purple, numerous. Glume I ovate blunt, 
two-thirds the length of glume III; glumes II and III elliptic blunt, 
5-nerved; glume IV ovate smooth. Hab. Rare in rivers and water 
meadows. A very beautiful grass. Johor, Hadji Senawi, Sem- 
pang Kiri River; TebingTinggi (Ridley). Perak, Larut (Kunstler). 
(8) P. elegautissimum Hook. fil. F.B.I. vii. 52; Ridl. Mai. 
iii. 139. 
A perennial tufted grass 2 or 3 ft. tall. Stems slender. Leaves 
numerous from near base, linear acuminate, hairy, 12 to 18 in. long, 
•12 in. wide. Panicle lax, spreading, 9 in. long, branches very 
slender, scabrid, filiform. Spikelets solitary or in pairs, few, scat¬ 
tered, ellipsoid acute, purple at tips, •! in. long. Glume I ovate 
acuminate keeled ribbed, half as long as glume III; glume II 
simhar but nearly twice as long; glume III longer; glume IV 
elliptic blunt, shining, crustaceous, white. Hab. Rare. Bindings ; 
on the top of the hill overlooking the sea, Lumut. Setul heaths 
(Ridley). Disirib. Burma. 
(9) P. maximum Jacq. Ic. PL Rar. i. t. 13. P. jumentorum 
Pers. Syn. i. 83. 
Large tufted grass, usually glabrous. Leaves linear, long- 
