Volume LVIII 



Number 3 



Irf 



THE 



Editor: JOHN M. COULTER 





NOVEMBER 1914 





Prairie Vegetation of a Mountain-Front Area in Colorado 



■ 



Arthur G. Vestal 



A Study of Symphyogyna aspera 



Florence A. McCormick 



Spermatogenesis in Marsilia 



Lester W. Sharp 



The Plant Successions of the Holyoke Range 



Edith A. Roberts 



Histology of Flax Fruit 



Kate Barber Winton 



Current Literature 





i 



The University of Chicago Press 



CHICAGO, ILLINOIS, XLS. A. 



Agents 



THE CAMBRIDGE UNIVERSITY PRESS, Landtm and Edinbnrgk 



KARL W. HIERSEMANN, L*m*is 

 THE MARUZEN.KABUSH110.KA1SHA, Tokyo, 0*mka, Kyoto 



