Migula, Krypt. Germ., Austr. Helv. Exs. [Pilze]
E.F.A.W. Migula [1-425]

Cornell University Plant Pathology Herbarium
Catalog #: Mig.,C.G,A.H-0340
s.n.
Oidium erysiphoides Fr.

USDA United States National Fungus Collections
Catalog #: BPI 409530
Migula W. s.n. 29 July 1931
Oidium erysiphoides Fr.
East Germany, Thuringia, Eisenach Castle road

USDA United States National Fungus Collections
Catalog #: BPI 986858
Migula W. s.n. 29 July 1931
Oidium erysiphoides Fr.
Germany, Thuringia, Eisenach Castle road

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0252111
W. Migula s.n. 29 July 1931
Oidium erysiphoides Fr.
Germany, Thuringia, Eisenach; At Burweg

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000280128
W. Migula #340 29 July 1931
Oidium erysiphoides Fr.

Field Museum of Natural History
Catalog #: C0259875F
e979a68c-26b4-4112-9829-12ae9d584f3d
W. Migula #s.n. 29 July 1931
Oidium erysiphoides Fr. Fr.
Germany, Thuringia, Eisenach; Eisenach, Eisenach, on the Burgweg