418 



The present known range is from Maine west to Minnesota, south to 

 West Virginia and Indiana. Collections from the following states have 

 been examined by the writer and are represented by specimens in the 

 herbarium of Dr. J. C. Arthur at Purdue University, where the writer 

 has carried on the major part of his studies. The collectors' names are 

 included in parentheses. 



Delaware ( Jackson ) . 



Indiana (Hunter). 



Maine {Arthur). 



Michigan (Arthur, Kern). 



^Sew York (Webber, Redd irk. Edgerton, Stone). 



Ontario (Arthur, Dearness). 



Pennsylvania (Sumstme) . 



West Virginia (Sheldon). 



Wisconsin (Da vis ) . 

 During the year no additional facts have been brought out which 

 throw any light on the specific standing of the timothy rust. The writer 

 is still of the opinion that it is not entitled to specific rank and would in- 

 clude it under Pucdnia poculiformis (Jacq.) Wettst. (Puceinia gramini.s 

 Pers.) The statement made last year could, perhaps, be somewhat modi- 

 fied. Rather than calling it a race, physiological species or form species, 

 it might be better to consider it a variety or subspecies since it does, as 

 previously pointed out. possess some slight morphological differences from 

 the typical form, particularly in the smaller secial cups and the more deli- 

 cate uredinial mycelium. 



Purdue University. 

 Lafayette, Ind. 



