O.F. Pazschke [3601-4500]

USDA United States National Fungus Collections
Catalog #: BPI 564711
Magnus P. s.n.
Erysiphe polygoni DC.
Germany, Marchia, Wannsee, near Berlin

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0069670
P. Magnus #s.n.
Erysiphe polygoni DC.
Germany, Marchia: Wannsee pr. Berlin