face; the summit of each marked with a trifid diverging 
“elevated line. 
: genus probably restrained toa single species indetie: 
- Nous also to Europe and India. Size variable, from 2 to 
12 inches, growing either immersed or on the margins of 
_ elear ponds; color green. 
833. SALVINIA. Micheli, Willd, 
--—s«sIndusia imbricate, connate, resembling an 
unilocular capsule. Seeds? inserted upon a cen- 
tral] receptacle. 
Plant floating, small and pieksenk: sending out, ra- 
_ icles from the joints; leaves opposite, petiolate, dist ichal- 
ly disposed, ovate or partly cordate, entire and some- 
what coriaceous, green. Fruit globular, in radical clus- 
ters which are submersed; flowers? monoicous? 
Species. S. natans, 4. 
834. AZOLLA. Lamark. 
- Monoicous.—Masculine? appendices by pairs, 
contiguous.——Indusium subgtobose, resembling 
an unilocular capsule. Proper capsules (seeds, 
Lamark) numerous, naked, minute. 
_ Minute floating plants, with greenish and very small 
distichally subimbricated leaves, radicles extra-axillars 
utriculi, globose-ovate, axillar; masculine, or infertile pro- 
cael! ee cosas ae to the fruit. 
+ 
his genus have are 2or 3other species, and one of 
to New Holland, in which species Mr. 
to have ascertained, that the supposed capsule 
sisinfactatruesorus, 
THE END. 
‘Brown, in the splendid illustrations to Flinder’s voyage, — 
