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.

Michigan State University Herbarium
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
W. Migula #s.n. 29 July 1931
Oidium erysiphoides Fr.
Germany, Thuringia, Eisenach, Eisenach; Eisenach, on the Burgweg