THE BRYOLOGIST 



AN ILLUSTRATED BIMONTHLY 

 DEVOTED TO 



NORTH AMERICAN MOSSES 



HEPATICS AND LICHENS 



VOLUME XXIV 



/ 



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



Assoc iate Ed itors 



GEORGE N. BEST, M. D. ABEL JOEL GROUT. Ph. D. 



ALEXANDER W. EVANS, Ph. D. JOHN M. HOLZINGER, M. S. 



and the 



Advisory Board Officers of the Society 



Pittsburgh, Pennsylvania 

 192 1 



