Reprinted from the Botanical Gazette 45: 145-175, March 1908 



SPERMATOGENESIS, OOGENESIS, AND 

 FERTILIZATION IN NEPHRODIUM 



CONTRIBUTIONS FROM THE HULL BOTANICAL LABORATORY IO7 

 (with PLATES VI-VIIl) 



SHIGEO YAMANOUCHI 



PRINTED AT THE UNIVERSITY OF CHICAGO PRESS 



