7 



THE FERN BULLETIN 



Osmunda Claytoniana L. Interrupted fern. 

 Field, woods and thicket. Common throughout.. 



Osmunda regalis L. Royal fern. Swamps and 

 wet woods. Throughout, though not as common as 



the two preceding species (O. spectabilis Wild.) 



SCHIZAEACEAE 



Lygodium palmatum (Bernh.) Climbing fern. 

 Wet thickets. Rare and apparently confined to the 

 eastern part of State. Bucks Carbon, Lehigh, Lu- 

 zerne, Schuylkill, Philadelphia and Wyoming counties. 



POLYPODIACEAE 



Adiantum pedatum L. American Maiden-hair. 

 Rich woods. Common throughout. Immature forms 

 of this species have given rise to reports of Adiantum 

 capUlus-veneris in Pennsylvania. 



Asplenium angustifolium Michx. Narrow- 

 leaved Spleenwort. Rich woods. Rather rare, but to 

 be expected throughout. Lancaster, Berks, York, 

 Blair, Fayette, Allegheny, Erie, Clinton, Delaware, 

 Philadelphia, Sullivan, Montgomery, Westmoreland 

 and Monroe counties. 



Asplenium Bradleyi D. C. Eaton. Bradley's 

 Spleenwort. Crevices of exposed or shaded rocks. 

 Very rare. Known only from Lancaster and York 

 counties along the lower Susquehanna. 



Asplenium ebeneum Ait. Ebony Spleenwort. 

 Rocky woods, thickets and roadside banks. Common 

 throughout. Most fruitful in dry, partially shaded sit- 

 uations. (Asplenium platyneuron. (L. Oakes.) 



Asplenium ebeneum serratum Miller. In sim- 

 ilar situations and to bt expected throughout. A form 

 with deeply serrate and sometimes pinnatifid pinnae has 



