672 
CRTPTOGAMIA HYDROPTEKIDES. 
natans. 
738. SALVINIA. Gen. pi. 1617 . 
1. S. folds eliipticis obtusis supra fasciculato-setosis, petiolis 
pilosis, fructibus subsessilibus aggregatis. Willd, sp. 
pL 5. p. 536. 
Marsilea natans. Sp. pi. 1562. 
Icon, Schhuhr Jilic. t. 173. Lam. illust. 803. 
Floating, like Lemna, on the surface of stagnant waters : 
in several of the small lakes in the western parts of 
New York and Canada. O. v.v. 
earoliniana. 
739 . AZOLLA. Lam. encycl. i , p. 340. 
1. A. folds imbricatis ovato-oblongis obtusis patentibus sub« 
tus rubris. — Willd. sp.pl. 5. p. 541. 
Floating on the waters of Lake Ontario. O. v.v. 
Resembles a floating moss or Jungermannia, 
FINIS. 
