USDA United States National Fungus Collections
Catalog #: BPI 994881
s.n.
Erysiphe communis (Wallr.) Schltdl.

USDA United States National Fungus Collections
Catalog #: BPI 560549
Lasch; Fiedler s.n.
Erysiphe cichoracearum DC.
Poland, Driesen (Lasch), near Schwein (Fiedler)