96 



Mycologia 



to be represented by Puccinia graminis in more than one out of 



numerous aspects. In this resume of cultures only a few of the 



more prominent developments that should help to modify the too 



rigid and restricted ideas of rust species as commonly held have 



been brought forward. Yet enough has been said possibly to 



indicate the value of what has been accomplished and the need 



of more extended work along similar lines. 



Purdue University, 

 Lafayette, Indiana. 



