H.G. Winter [2601-3600, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 1001106
s.n.
Erysiphe galeopsidis DC.
Germany

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0083743
C.H. Demetrio s.n.
Erysiphe galeopsidis DC.
USA, Missouri, Perryville