THE 
NEW PHYTOLOGIST. 
A BRITISH BOTANICAL JOURNAL, 
EDITED BY A. G. TANSLEY, M.A., F.R.S. 
UNIVERSITY LECTURER IN BOTANY, CAMBRIDGE, 
IN CONSULTATION WITH THE STAFF OF THE CAMBRIDGE BOTANY SCHOOL. 
ASSIST A NT- J{ DI'l'O it : 
F. CAVERS, D.Sc. 
VOLUME XIV. 
PR. VII. and 304. 
WITH FOUR PLATES AND NUMEROUS FIGURES IN THE TEXT. 
LONDON, 1915. 
WILLIAM WESLEY & SON, 
28 Essex Street, Strand, 
