USDA United States National Fungus Collections
Catalog #: BPI 994882
s.n.
Erysiphe communis (Wallr.) Schltdl.

USDA United States National Fungus Collections
Catalog #: BPI 562261
Bauer s.n.
Erysiphe communis (Wallr.) Schltdl.
Germany, Doemitz