A PRELIMINARY LIST OF MINNESOTA 
ERYSIPHE. 
E. M. FREEMAN. 
The collection of fungi in Minnesota has been carried on by 
the Geological and Natural History Survey of the state at various 
times for the past fourteen years.* In 1886 Professor J. C. Arthur 
assisted by Prof. L. H. Bailey and E. W. D. Holway, Esq., made 
a collection of fungi in St. Louis county especially in the region 
about Vermillion lake. A list of the plants collected was pub- 
lished in Bulletin No. 3 of the Geological and Natural History 
Survey of Minnesota. Since that time numerous collections 
have been made by Dr. A. P. Anderson, Messrs. E. P. Shel- 
don, C. A. Ballard and others, but lists of the collected plants 
have not yet been published. The list given below comprises 
records of all the Erysiphez which have been collected in Min- 
nesota up to the present time and deposited at the herbarium of 
the University of Minnesota. 
A number of specimens had been identified by Mr. Sheldon 
and these together with the above mentioned collection of Profes- 
sor Arthur and his party have in every case been reéxamined so 
that the writer assumes the sole responsibility of the determina- 
tions. The specimens have been compared with such well 
known exsiccati as Ellis’ North American Fungi, de Thiimen’s 
Mycotheca Universalis and others. For the sake of complete- 
ness the collection made by Professor Arthur and party is incor- 
porated in this list and where the nomenclature has been changed 
the name published by Professor Arthur is placed in parenthe- 
ses after the collection citation. In 1884+ A. B. Seymour made 
a few collections along the Northern Pacific Railroad. Speci- 
* A list of Minnesota fungi published by Dr. A. E. Johnson in the Bulletins of 
the Minnesota Academy of Natural Sciences during the years 1876-1879 cannot be 
considered authentic, since no collection is available for comparison. 
t Seymour, A. B. List of Fungi, collected in 1884 along the Northern Pa- 
cific Railroad. Proc. Bost. Soc. Nat. Hist. 24: 182-191. 1889. 
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