i 9 i 5 ] YASUI—DIOSPYROS KAKI 373 



8. The 2% number of chromosomes is 56 or 54. 



I desire to express my thanks to Professor John M. Coulter, 

 under whose direction the investigation was undertaken; to 

 Professor C. J. Chamberlain, who gave much advice; and to Mr. 

 Y. Kumagai and Professor Y. Yabe, who assisted in securing 

 material. 



University op Chicago 



