SMUTS AND RUSTS OF NORTHERN UTAH 

 AND SOUTHERN IDAHO 



George L. Zundel 



The fungi listed in the following paper were secured from two 

 principal sources. In the first place the author collected a num- 

 ber of smuts and rusts while on his vacation during August, 1920. 

 The next source of material was the herbarium of Dr. C. N. 

 Jensen, formerly plant pathologist of the Utah Experiment Sta- 

 tion at Logan, Utah. This material was secured from the biology 

 department of the Brigham Young College at Logan, Utah. 

 Besides the above two sources of material, miscellaneous collec- 

 tions that have been sent to the author have also been included. 

 In some instances these miscellaneous collections are outside of 

 Northern Utah or Southern Idaho. Where no credit is given it 

 is the author's own collection. 



The papers on the Smuts and Rusts of Utah by Prof. O. A. 

 Garrett have been consulted in the preparation of this paper. 



The author found that in Box Elder County, Utah, Ustilago 

 bromivora was attacking Bromus tectorum in epiphytotic form. 

 As a boy the author botanized in this section of the State with- 

 out seeing this smut. In August, 1920, however, he found hun- 

 dreds of acres infected with this smut with an average infection 

 of from 98 per cent to 99 per cent. 



SMUTS 



Tilletia as peri folia El. & Ev. ; Jour. Myc. 3: 55. 1887 



On Sporobohis asperifola (Ness. & Mey.) Thurb. At corner of 3d North 

 Street and 2d East Street, Logan, Cache County, Utah, August 3, 1920 

 (98 per cent infection) ; a quarter mile north of Oregon Short Line Railroad 

 depot, Logan, Cache County, Utah, August 4, 1920 (98 per cent infection) ; 

 West of Logan, Cache County, Utah, on Oregon Short Line Railroad, August 

 4, 1920 (85 per cent infection) ; near Utah-Idaho Central Railroad, Five 

 Points, Weber County, Utah, August 14, 1920 (98 per cent infection) ; one 

 mile south of Brigham City, Box Elder County, Utah, August 16, 1920 (75 

 per cent infection) ; Perry, Box Elder County, Utah. August 18, 1920 (infec- 

 tion only a trace). 



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