THE BRYOLOGIST 



AN ILLUSTRATED BIMONTHLY 



DEVOTED TO 



NORTH AMERICAN MOSSES 



HEPATICS AND LICHENS 



Volume XV 



ABEL JOEL GROUT, Ph.D., Editor 



Associate Editors 



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



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



and ttie 



Advisory Board Officers of the Society 



New DORP, New York 



1012 



JAM 241913 ' 



