



■ ^l\ 





THE AMERICAN MIDLAND NATURALIST X)0/ 



Monograph No. 6 



Edited by John D. Mizelle 



Published by the University of Notre Dame 

 Notre Dame, Indiana 



A Manual of the Mosses of Western Pennsylvania 

 and Adjacent Regions 



SECOND EDITION 



By O. E. JENNINGS 



Director Emeritus, Carnegie Museum 



Formerly Head, Department of Biology, University of Pittsburgh and 

 Curator of Botany, Carnegie Museum; Editor, The Bryologist 1913-1938 



J 



University of Notre Dame Press 

 Notre Dame, Indiana 

 September, 1951 



