182 CXXXVIII. NAIADEX. [ Naias. 
m N. Africa, E. India, and M 
chiefly on the form of the stipular lobes of theleaf-sheaths. Ifthe two species are 
really identical it is Brown's name that should be a th 
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9. HALOPHILA, Thou. 
Flowers unisexual, solitary within a pair of herbaceous bracts. Male 
flower: Perianth o segments. Anthers 3, sessile, alternating with 
the segments, erect, 2-celled, the cells opening out pollen con- 
ervoid. emale flowers: Perianth none. Ovary single, tapering into 
The genus is confined to the Indian and West Pacific Oceans and Mediterannean 
sea. Ofthe two Australian species one is widely dispersed over the shores of the 
Indian and Pacific Oceans, the other, as far as is known, is endemic. 
Leaves on long petioles with an ovate or oblong entire lamina 1. H. ovalis. 
aves sessile or nearly so, broadly linear, rounded and 
ciliate-toothed at the end . RN o SL o C M. VE 
uov. Giorn. Bot. Ital. iii. 301; Caulinia ovalis, R. Br. Prod. 339; 
hers. in Linnza, xxxv. 173. 
Queensland, Brisbane River, Moreton Bay, F. Mueller ; Port Denison, fi 
alan ; Cape York, Moseley. x cd 
N. Wales. Paramatta River, Woolls; Lord Howe's Island, Lind 
