G.L. Rabenhorst [1-2600]

Cornell University Plant Pathology Herbarium
Catalog #: F.europaei-1918
s.n.
Erysiphe martii Lév.

USDA United States National Fungus Collections
Catalog #: BPI 565017
Rabenhorst s.n.
Erysiphe polygoni DC.
Germany, Uttewalder Grund