Petrak, Crypt. Exs.
F. Petrak [3201- 4700]

USDA United States National Fungus Collections
Catalog #: BPI 1042935
s.n.
Erysiphe galeopsidis DC.
Germany

USDA United States National Fungus Collections
Catalog #: BPI 562560
Norrman C. M. s.n. 20 August 1960
Erysiphe galeopsidis DC.
Sweden, Uppsala, Repslagaregatan