550 CXLIV. GRAMINER, [Oryza, 
. O. tiva, ` Linn. unth, Tih. . 7.—S8tems creeping or 
to above 1 ft. lo Spikelets ovate- -oblong, 3 to 4 lines long. Outer 
glumes scarcely 4 line long and nerveless, upper ones 4 promi- 
SERM: nerved, the keels usually ciliate, the outer one with 1 nerve 
on e ide be the e-like margin, elosely embracing and 
the outer one with a straight awn of } to 3 in. and the inner with 
only a short e —F. Muell. Fragm. viii. 115; : “Döl in Mart. Fl. 
Bras. Gram. t. 
N. Australia. Marshes about Hooker and Sturt’s Creek, really wild, F. Mue ller. 
Common in East India in the wild state (Roxburgh), besides the numerous varieties 
cultivated in various countries under the name of Rice 
40. POTAMOPHILA, R. Br. 
Spikelets 1-flowered, polygamous, not flattened, articulate on s 
short pedicels along the filiform branches of a terminal panicle 
Glumes 4, 2 outer ones very small membranous, Ded: nper ones 
o 
broadest. No 2-nerved palea. Stamens 6. Styles s short, distinct. 
Grain enclosed in the larger glumes, free from them. 
The genus is limited to the single species endemic in Australia.. 
1. P. parviflora, R. Br. Prod. 211.—An aquatic glabrous grass 
of 3 to 9 ft. Leaves narrow and erect, convolute when n dry, scabrous ; 
ligula prominent, jagged. Panicle narrow, 1 to 1j ft. long or der 
more. peus ets ed numerous, about 1$ lines long ,pale-soloure o 
Men m RAT rather acute, concave, the outer eum E 
the inner one 3-nerved.— Kunth, Rev. Gram. t. 5; Trin. Spec. Gra 
t. 249. 
N. S. Wales. Williams River, R. Brown; Hastings River, Beckler, the 
specimens few, and not seenin any Cine collection. 
* 4l. EHRHARTA, Thunb. 
Spikelets 1-flowered, pedicellate in a terminal panicle rarely rodnar 
a simple raceme, the rhachis of the spikelet articulate above the 
a 
es 
Slate sometimes awn ned, the 4th deua ne Deren pit sometimes 
