XTbe Botanical 0a$ette 



B flftontblE Journal ^Embracing all Departments of JBotanical Science 



Edited by John M. Coulter, with the assistance of other members of the botanical staff of the 



University of Chicago. 



Issued November J 6, 1914 



VoL LVIII CONTENTS FOR NOVEMBER 19H No. 5 



PRAIRIE VEGETATION OF A MOUNTAIN-FRONT AREA IX COLORADO (with nine 



fk^ures). Arthur G. Vestal - - - - - - - - - - - -3" 



V STUDY OF SYMPHYOGYXA ASPERA. Contributions from the Hull Botanical 



Laboratory 196 (with plates xxx-xxxii). Florence A. McCarmick ----- 401 



SPERMATOGENESIS IN MARSILIA. Contributions from the Hull Botanical Labora- 

 tory 197 (with plates xxxiii and xxxiv). Lester W. Sharp ---,-- 419 



THE PLANT SUCCESSIONS OF THE HOLYOKE RANGE. Contributions fkqm the 



Hull Botanical Laboratory 198 (with map). Edith A. Roberts - 43 2 



HISTOLOGY OF FLAX FRUIT (with four figures). Kate Barber Winton - 445 



CURREN T ITT ERA TURE 



BOOK, REVIEWS - ----- 



THE VEGETATION OF LAKE CONSTANCE. 



MINOR NOTICES - 



NOTES FOR STUDENTS - 



449 



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