214 NATURAL HISTORY BULLETIN. 



ASPLENIUM ANGUSTIFOLIUM Mx. 



Delaware Co. (Macbride) ; Jackson Co. Specimens from 

 Jackson Co. were successfully transplanted to Johnson 

 Co. two years ago. 



ASPLENIUM FILIX-FCEMINA Bemh. 



Jackson Co. [Macbride) ; Jones Co. [Cameron); Calhoun 

 Co. {Bigg); Polk Co. {E. Des Moines H. S.); Ring- 

 gold Co. Common everywhere eastwardly. 



ASPLENIUM THELYPTEROIDES Mx. 



Jones and Jackson Cos. {Macbride.) 

 Camptosorus rhizophyllus Link. 



Des Moines Co. {Bartsch.) Not uncommon eastward. 



ASPIDIUM SPINULOSUM Swtz. 



Johnson Co. Some years ago this species was quite com- 

 mon near Iowa City, but the locality in which it was most 

 common is now under cultivation. 



ASPIDIUM GOLDIANUM Hook. 



Jackson Co. {Macbride.) 

 Cystopteris bulbifera Bemh. 



Allamakee and Jones Cos. {Macbride.) Very common in 

 Johnson Co. 

 Cystopteris fragilis Bemh. 



Emmet Co. {Cratty) ; Calhoun Co. {Bigg),' Ringgold and 

 Johnson Cos. Very common in Johnson Co. 

 Onoclea sknsibilis L. 



Ringgold and Johnson Cos. Very common in Johnson Co., 

 and almost always growing in wet meadows. 

 Onoclea struthiopteris Hoffni. 



Muscatine Co. {Rcfpert) ; Shelby Co. {Fit z fat rich.) Quite 

 common in Johnson Co. 



OsMUNDA CLAYTONIANA L. 



Jones Co. (Cameron,) The most common of the larger 

 Ferns in Johnson Co. 



BOTRYCIIIUM VIRCIMAMJ.M Sivtz. 



Jones Co. [Macbnde; Cameron); Chickasaw Co. [Miss 



