LELAND STANFORI 



UNIVERSITY SERIES 



LELAND STANFORD JUNIOR UNIVERSITY PUBLICATIONS 



a 



A Morphological Study 



of some members of the 



Genus Pallavicinia 



BY 



DOUGLAS HOUGHTON CAMPBELL 

 Professor of botany 



and 

 FLORENCE WILLIAMS 





2Zq1® 8 



STANFORD UNIVERSITY, CALIFORNIA 

 PUBLISHED BY THE UNIVERSITY 



I9T4 



