the'bryologist 



AN ILLUSTRATED BIMONTHLY ^ 



DEVOTED TO 



NORTH AMERICAN MOSSES 



v; 



HEPATICS AND LICHENS ^^.,<^^an Insf/J^ 



29 1921 



VOLUME XXIU V/g.^,''^^^: 



O. E. JENNINGS, Ph.D., Editor-in-Chief 



Associate Editors 



GEORGE N. BEST, M.D. JOHN M. HOLZINGER M.S. 



ALEXANDER W. EVANS, Ph.D. LINCOLN W. RIDDLE Ph D 



and the 



Advisory Board Officers of the Society 



Pittsburgh, Pennsylvania 

 1920 



