67^. 



CRTPTOGAMIA HYDROPTEKIDES. 



738. SALVINIA. Gen. pi. 1617. 



-natans. l- S. foliis ellipticis obtusis supra fasciculato-setosis, petiolis 



pilosis, fructibns subsessilibus aggregatis. IVitld. sp. 

 pi: 5. p. 536. 



Marsilea natans. Sp. pi. 1562. 



Icon. SthkuhrJUic. t. 1 73. Lam. illust. 863. 



Floating, like Lemna, on the surface of stagnant waters : 

 in several of the small lakes in the western parts of 

 New York and Canada. ©. v. v. 



73(). AZOLLA. Lam. encycl. I. p. 340. 



caroliniana. I. A. foliis imbricatis ovato-oblongis obtusis patentibus sub- 

 tus ruhns.— W Hid. sp.pl. 5. p. 541. 

 Floating on the waters of Lake Ontario. O- v. v. 

 Resembles a floating moss or Jungerviannia. 



FINIS. 



