Kerner von Marilaun, Fl. Exs. Austro-Hung.
A. Kerner von Marilaun [1-2800]

Cornell University Plant Pathology Herbarium
Catalog #: Fl.E.Aus.-Hung.1173
s.n.
Erysiphe horridula (Wallr.) Rabenh.
Austria-Hungary

USDA United States National Fungus Collections
Catalog #: BPI 563413
Richter s.n.
Erysiphe horridula (Wallr.) Rabenh.
Austria, Gloggnitz & Payerbach