TRANSACTIONS AND PROCEEDINGS 



BOTANICAL SOCIETY OF EDINBURGH. 



VOLUME XXVII. 



INCI-UDING SESSIONS LXXX. LXXXm. 

 (1915-1<»19). 



WITH NUMEROUS ILLUSTRATIONS. 



11I3RARY 



NEW YORK 



BOTAMICAL 



GARDEN 



EDINBURGH: 



PRINTED FOR THE BOTANICAL SOCIETY, 



1919. 



