C. Roumeguere [1-7400]

USDA United States National Fungus Collections
Catalog #: BPI 1013195
s.n.
Erysiphe communis (Wallr.) Schltdl.

University of Illinois Herbarium
Catalog #: ILL00220724
F. Fautrey s.n. 00 November 1893
Erysiphe communis f. calthae
France