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IOWA ACADEMY OP SCIENCE Vol. XXVI, 1919 



and found 25 per cent. This accounts for the heavy rust infection. 

 For 900 feet along the right-of-way of the Ilhnois Central Railway 

 Hordeum juhatum, Agropyron Smithii, A. tenerum, A. repens and 

 oats were all badly infected with Puccinia graminis. 



Sioux Falls, South Dakota — The abundance of rust near the 

 Woodlawn cemetery was undoubtedly connected with the barberry 

 cut off early in the spring, the low growing shoots having produced 

 some aecia. 



Garner, Hancock county — There was evidence on every hand that 

 this rust on Hordeum juhatum, Agropyron repens, wheat and barley 

 could be traced directly to the barberry in the vicinity. The same 

 thing was true for two other points in this county. 



Dallas Center — On the Charles Rhinehart place were several 

 bushes of barberry. Hordeum juhatum and Agrostis alha were badly 

 infected for thirty-two feet from the bushes. On the William 

 Danner place a mile and a quarter from Dallas Center there was a 

 hedge of barberry fifty feet long. Red top on the roadside was 











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Fig. li). — Diinner wheat field and narl)erry. Dallas Center. 



