1^5 MYCOLOGY 



Thon, Charles: Cultural Studies of Species of Penicillium. Bull. ii8, U. S. 



Bureau Animal Industry, 1910. 

 Wager, Harold: The Nucleus of the Yeast Plant. Annals of Botany, xii: 499- 



540, with 2 plates, 1898. 

 Wf.ttstein, Dr. Richard R. von: Handbuch der Systematischen Botanik (2d 



Edition), iqii: 168-192. 



