2i< NATURAL HISTORY BULLETIN. 



ASPLENIUM ANGUSTIFOLIUM J/x. 



Delaware Co. [Machride); Jackson Co. Specimens from 

 Jackson Co. were successful!}' transplanted to Johnson 

 Co. two years ago. 



ASPLENIUM FILIX-FCEMINA BcrilJl. 



Jackson Co. [J/acb?'ide) : ]ones Co. ( Ca?ne?'o?i) : Calhoun 

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

 gold Co. Common everyw^here eastwardl3\ 



ASPLENIUM THELVPTEROIDES ]\Ix. 



Jones and Jackson Cos [3facb?'ide.) 

 Camptosorus rhizophyllus Link. 



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



ASPIDIUM SPINULOSUM Sivtz. 



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

 mon near Iowa City, but the localit}- in which it was most 

 common is now under cultivation. 



AsPIDIUM GOLDIANUM Hook. 



Jackson Co. [Macbi-ide.) 

 Cystopteris bulbifera Bernh. 



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

 Johnson Co. 

 Cystopteris fragilis Bernh. 



Emmet Co. {Crafty) : Calhoun Co. [Rigg] : Ringgold and 

 Johnson Cos. Ver}- common in Johnson Co. 



Onoclea sensibilis L. 



Ringgold and Johnson Cos. Ver}- common in Johnson Co., 

 and almost always growing in wet meadows. 

 Onoclea struthiopteris Hoffm. 



Muscatine Co. \Reppert) ; Shelby Co. {Fitzfatrick.') Quite 

 common in Johnson Co. 



OSMUNDA CLAYTONIANA L. 



Jones Co. {^Cameron.) The most common of the larger 

 Ferns in Johnson Co. 



BOTRYCHIUM VIRGIXIANUM S'lVtZ. 



Jones Co. [Macbride; Cameron); Chickasaw Co. i^Miss 



