THE 
NEW PHYTOLOGIST 
A BRITISH BOTANICAL JOURNAL, 
EDITED BY A. G. TANSLEY, M.A., F.R.S. 
UNIVERSITY LECTURER IN BOTANY, CAMBRIDGE, 
IN CONSULTATION IVITH THE STAFF OF THE CAMBRIDGE BOTANY SCHOOL . 
VOL UME X VIII. 
PP. VII. and 298. 
WITH SIX PLATES AND NUMEROUS FIGURES IN THE TEXT. 
WILLIAM WESLEY & SON, 
28 Essex Street, Strand, W.C.2. 
LONDON, 1919. 
