256 CXVIII. HYDROCHARIDEJ. [ Hydrocharis. 
1. HYDROCHARIS, Linn. 
ee Ovary ‘and fruit O-celled. Styles 6, each with 2 peal) 
branches.—Stems floating, me Fn pipes radical leaves and peduncles. 
Leaves bearing a cordate 
The genus is limi ted to a ae species spread over Europe and the S ee 
regions of Asia, the pede has pity. reg presenting no apparent difference 
1. H. morsus-rane, Linn. Spec. Pl. 1466. Stems Sorene resem- 
Mie & the runners of creeping fe with floating tufts of radic al 
Le 
= th-segments white, 4 or 5 ‘lines long. outer ones about half. e 
erianth nea rly the same as in the males. Fruit ovoid, somewhat 1 
Reich Te under e ong.—L. o. Rich. in Mem. Inst. Fr. 1811, t. 910 4 
i . 62. Ca 
Que x: & bay, Bidwill. F. Moeller Deu P he has also received it — 1 
from xad greed localities in Queensland. I teen es dol: 
know whether there may be any reason to suppose “that it y an dedica pii 
2. OTTELIA, Pers. 
(Damasonium, Schreb., not of Juss.) 
Flowers €— solitary and sessile within a tubular 2-lobed - 
spathe. ents green, inner ones larger an jus 
ike Hire 6 or more; anthers linear. Styles or stigmas 6, 2- obed. 
ovate or broad-cordate lamina. 
e genus is spread over tropical Asia and Africa with one American species. Of fthe — 
Th 
three Australian species, one is the common Indian one, the two others apparently 
Leaf- lamina broadly cordate. cen tos winged od 
mina n or oblong T i ged. 
cdm e firm, : r periant segments — = — ; 
.tent.on Ay frui ... 2. 0. ovalifolia. 
1. O. alismoides. : 
