Naias.} OXXXVIII. NAIADER. 181 
The genus is widely spread over the temperate and some of the warmer regions of 
the globe. Ofthe tw dug alian species one may be endemic, the other occupies the 
general area of the gen 
nth Sn stigmatic lobes, and the ovule consequently as naked, and the i 
dies ves NR toothed — oe the basal 
sheath not produced Á— scariou 1. N, major. 
Leaves very ara the teeth very sh iy basal sheath 
ims on n each Ms into a dowd. lanceolate dac ipd 
lobe . . 9. N. tenuifolia, 
N. major, 47]; Kunth, Enum. iii. 112. —Leaves es bor- 
i to be 
nor produced into stipular lobes, “ aculeate on the back as well as the 
stem” but t the prickles few or SO minute a as to be difficult to see on the 
emale flower a 
the ripe nutlet about 13 lines long.—F. Muell. Fragm. viii. 218; Nee 
Gen. Fl. Germ. Ic. 
S^ Australia, Flinders River, F. Muell 
Th ustralia. Murchison n River, Oldfield. 
* Species is widely spread over the northern hemisphere. 
i N.t tenuifolia, R. Br. Poi 345.—Stems slender, much branched. 
b ves very narrow linear, flat and abe aise mostly about 1 in. 
ow l-nerved, bordered by, rather numerous very minute teeth often 
My visible under a strong lens, the sheathing base very short but pro- 
stipular lobe. Mal 5 Femal 
. e flower sti itate, oblode. about 4 line long. Female 
d about 1 line long, Nes cylindrical produced into a filiform 
os 2-branched style as long as the carpeL—F. Muell. Fragm. 
Geeemaland, 1. ? Brisb irm d Eann 
CLE Males. P ort Jac dig ^ -— ; Hunters River, Leichhardt ; Nepean 
Y ` Murray River, F. Mueller. 
have not seen Brown's specimens and give his stations from his Prodromus, 
