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. 
ASSISTANT-EDITOR : 
F. CAVERS, D.Sc. 
VOLUME XV. 
PP. VII. AND 258. 
WITH ONE PLATE AND NUMEROUS FIGURES IN THE TEXT. 
LONDON, 1916. 
WILLIAM WESLEY & SON, 
28 Essex Street, Strand. 
