G.L. Rabenhorst [1-2600]

USDA United States National Fungus Collections
Catalog #: BPI 605186
s.n.
Sphaerotheca humuli (DC.) Burrill
Unknown

Cornell University Plant Pathology Herbarium
Catalog #: F.europaei-1047
s.n.
Sphaerotheca castagnei Lév.