Ottelia.] ` CXVIII. HYDROCHARIDEJE. 257 
Spathe thinly membranous, deeply 2-lobed, the lobes much longer 
teh the fruit... 5... tel AS YI R5... 8 OT tener. 
O. alismoides, Pers. Syn. Pl. i. 400. Leaves on long petioles 
dilated and tufted at the Oe H the water, the lamina submerged or 
Specimens, varying in Indian dice fo Sli ovate. Peduncles usually 
long. Spathe ovoid-oblong lain 1} in. long, sant 2- ap at an 
Stamens 6 to 9.—L. C. Rich. in Mem. Inst. Fr. 1811, t. 7; 
Stratiotes alismoides, Linn. Spec. 704; Damasonium indicum, Willd. Sp. 
Pl. ii. 276 ; Roxb. Corom. PI. t. 185; Bot. Mag. t. 1201. 
bm Roper river, F. Mueller ; Creeks in the neighbourhood of Rock- 
ham n, O’ Shanesy, Watson ; Keanaly district, Daintree.—The species is 
"n y ode over East India. 
i 
2. O. ovalifolia, L.C. Rich. in Mem. Inst. Fr. 1811, 78: Habit of 
0. alismoides, but the leaf-lamina ovate or oblong, 2 to 4 in. long when 
h 
Fe according to the depth of the water. Spathe almost coriaceous,. 
- about 13 in. long, either quite smooth or with 2 or 3 slightly MCN 
- longitudinal nerves, but not winged in any of the specimens seen 
e erianth-segments green, 2 to 1 in. long ; inner ones pale yellow 
Z2 in. diameter in the only specimens in which they are pmi 
Stamens 9 to 15.—Damasonium AN ifolium, R. Br. Prod. 344; 
m, Planch. in Ann. Sc. Nat. ser. 3, xi. 82 
N. Australia. Albert river, Henne. 
Queensland. ATS Bowman, Thozet; Mount Elliott, Fitzalan. 
- S. Wales. Port Jackson, R. Brown ; Penrith, Backhouse; north of Lachlan 
Ae A. Cunningham iim, ri iver, 
Victoria. Glenelg ps en river, Robertson ; Yarra river, Adamson, F. Mueller ; 
- Lake nine, F. 
W. Australi amy nbi Drummond, 1st coll. 
3. O. ? tenera, Benth. pedir ovate or oblong as in 0. ovalifolia, 
- but smaller, and ‘the whole plant much more slender. Spathe wily 
membranous, rarely above 1 in. E deeply divided into 2 lobes whic 
| Project n much beyond the capsule, forming an oblique double lanceolate 
point. Capsule thin and narrow, the seeds rather large, oblon ng, the 
“ae pal scarcely protruding into the cavity, the fruit bearin ring at the - 
end some withered remains of the perianth, but I have been unable to 
find { pig in any of our specimens; the generic identity is therefore 
in some measure doubtful. 
— Mictoria. Wendu river, Robertson 
Pug. Australia, Drummond, Ath coll, n. 322. | 2 
T VOL. VI, 
