AND STANFORD JUNIOR UNIVERSITY PUBLICATIONS 

 UNIVERSITY SEP 



A Morphological Study 



of some members of the 



Genus Pallavicinia 



BY 



DOUGLAS HOUGHTON CAMPBELL 

 PROFESSOR OF BOTANY 



AND 



FLORENCE WILLIAMS 



WITH TWENTY-THREE FIGURES 

 [Issued April jo, 1914] 



.' ORD UNIVERSITY. CALIFORNIA 

 PUBLISHED BY THE UNIVERSITY 



