F.K.A.E.J. de Thümen [1-750, plus extras]

University of Illinois Fungarium - Fungi
Catalog #: ILL00085391
s.n.
Oidium erysiphoides Fr.

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00061069
Dr. Schweinfurth s.n. 00 January 1879
Oidium erysiphoides Fr.
Egypt

USDA United States National Fungus Collections
Catalog #: BPI 1034036
Schweinfurth #s.n. 00 January 1879
Oidium erysiphoides Fr.
Egypt, Minieh