FUNGI 



ASCOMYCETES, USTILAGINALES, 

 UREDINALES 



BY 

 Dame HELEN GWYNNE-VAUGHAN, 



(formerly h. c. I. fraser) 

 D.B.E., LL.D., D.Sc, F.L.S. 



PROFESSOR OF BOTANY IN THE UNIVERSITY OF LONDON 



AND 



HEAD OF THE DEPARTMENT OF BOTANY, BIRKBECK COLLEGE 



L1P3ARY 



NEW •.  

 8017 N..CAL 

 GAKDEN 



CAMBRIDGE 



AT THE UNIVERSITY PRESS 



1922 



