FLOWERING PLANTS AND FERNS OF INDIANA. 613 



A. acrostichoides Sw. Silvery Spleen wort. 

 A. thelypteroides Michx 

 Hamilton (Wilson); Vigo | Blatchley ) ; Steuben | Bradner . 



A. Filix-foemina L. Bernh. Lady-fern. 



Occurs in woods, thickets, and by walls and fences. 



ADIANTUM L. 



A. pedatum L. Maiden-hair Fern. 



Occurs throughout the State in moist hillside thickets and woods. 

 Decatur and Shelby .Ballard ; Vigo | Blatchley ; Hamilton and 

 Marion Wilson); Steuben < Bradner ■. 



PTERtS L. 

 P. aquilina L. Brake. 



Throughout the State in open places along fence- rows and edge of 

 thicket.s. 



PELL.EA Link. 



P. atropurpurea (L.) Link. Purple-stemmed Cliff-brake. 

 Occurs on rocks, preferring limestone. 



CHEILANTHE8 Sw. 



C. lanosa Michx Watt. Hairy Lip-fern. 



(C. lanuginosa Nutt.) 

 Occurs on rocks. 

 Gibson. 



POLYPODIl'M L. 



P. \*ulgare L. Common Polypody. 



Occurs on rocks or on rocky banks. 



Steuben (Bradner) ; Montgomery and Parke. 



P. polypodioides (L. , A. S. Hitchcock. Gray Polypody. 



Occurs in southern part of the State on trees or rarely on rocks. 

 Clark, Floyd, Perry, Gibson, Posey, and Jefferson. 



SALVINIACE.E. Salvinia Family. 



AZOLLA Lam. 



A. Caroliniana Willd. Carolina Azolla. 

 Floating on still water. 



