Lyon: the pteridopiivtes of Minnesota. '_'.">.""> 



Dichsonia -punctilobula (Michx.) A. Gray, Man. 628. 

 1848. 

 Reported from Minnesota by Upham. Its occurrence how- 

 ever must be considered doubtful. 

 Herb.: Not represented. 



Family SALVINIACE^. 



Salvinia natans (L.) Hoffm. Deutsch. Fl. 2: 1. 1795. Sal- 

 vinia. 

 Rare. 

 Herb. : Sheldon, Cuzner, Minneapolis. 



Azolla caroliniana Willd. Sp. PI. 5: 541. 1810. Carolina 

 azolla. 



Infrequent. In the sloughs of the Mississippi river below 

 Lake Pepin. 



Herb.: Holzinger, Winona; Lyon, Jefferson, Houston 

 county. 



