THE 
NEW PHYTOLOGIST. 
A BRITISH BOTANICAL JOURNAL, 
EDITED BY A. G. TANSLEY, M.A. 
UNIVERSITY LECTURER IN BOTANY, CAMBRIDGE, 
IN CONSULTATION WITH THE STAFF OF THE CAMBRIDGE BOTANY SCHOOL. 
assist ant-kditok : 
F. CAVERS, D.Sc. 
VOLUME XIII. 
PP. VIII. AND 364. 
WITH THREE PLATES AND NUMEROUS FIGURES IN THE TEXT 
LONDON 1914 
WILLIAM WESLEY & SON 
28 Essex Street, Strand, 
