PROCEEDINCtS of the OHIO STATE ACADEMY OF SCIENCE, 

 Volume V, Part 5, Special Paper No. 16. 



The Pteridophytes 

 of Ohio 



BY 



JOHN H. SCHAFFNER 



BoTANiCAi, Department, Ohio State Universiti 



lU V o 





PuBiviCATioN Committee. 

 J. C. Hambleton. E. ly. Rick. Bruce Fink, 



DiiTE OF PuBUCATiON, Jan. 5, 1910. 



pubivished by the academy, 

 Columbus, Ohio. 



