USDA United States National Fungus Collections
Catalog #: BPI 995409
s.n.
Erysiphe lamprocarpa (Wallr.) Link

USDA United States National Fungus Collections
Catalog #: BPI 994884
Fiedler #s.n.
Erysiphe horridula (Wallr.) Rabenh.
Germany, Schwerin

USDA United States National Fungus Collections
Catalog #: BPI 562349
Lasch (Poland); Fiedler (germany) s.n.
Erysiphe communis (Wallr.) Schltdl.
Poland, germany Driesen (Poland), Dresden (Germany)