Botanical Abstracts 



A monthly serial furnishing abstracts and citations of publications in the international 



field of botany in its broadest sense. 



VOLUME VI 

 OCTOBER, 1920-JANUARY, 1921 



PUBLISHED MONTHLY UNDER THE DIRECTION OF 



THE BOARD OF CONTROL OF BOTANICAL ABSTRACTS, INC. 



A democratically constituted organization, with members representing many societies 



interested in plants. 



BALTIMORE, U. S. A. 



WILLIAMS & WILKINS COMPANY 



1921 



