THE BRYOLOGIST 
AN ILLUSTRATED BIMONTHLY 
DEVOTED TO 
NORTH AMERICAN MOSSES 
HEPATICS AND LICHENS 
VOLUMEXXV ' 20 1323 ^ 
O. E. JENNINGS, Ph. D., Editor-in-Chief 
Associate Editors 
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 
1922 
