Anonymous, Calif. Fungi
Herbarium of the University of California. [1- ? 1425]

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00634
s.n.
Erysiphe polygoni DC.

USDA United States National Fungus Collections
Catalog #: BPI 948344
s.n.
Erysiphe polygoni DC.
United States, California

Field Museum of Natural History
Catalog #: C0285463F
78c1a029-21a8-433f-bf1c-f744e54c4a7a
H. E. Parks & S. T. Parks #6755 00 July 1943
Erysiphe polygoni DC. DC.
U.S.A., California, Del Norte, Darlingtonia Lodge, Smith River

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0015688
H.E. Parks #6755 00 July 1953
Erysiphe polygoni DC.
United States, California, Del Norte, Darlingtonia Lodge, Smith River

University of Florida Herbarium
Catalog #: FLAS-F-41878
H.E. Parks #6755 00 July 1953
Erysiphe polygoni DC.
United States, California, Del Norte, Darlingtonia Lodge, Smith River

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP31460
H.E. Parks; S.T. Parks s.n. 00 July 1943
Erysiphe polygoni DC.
United States, California, Del Norte, Darlingtonia Lodge, Smith River

University of Georgia, Julian H. Miller Mycological Herbarium
Catalog #: GAM00008670
Harold E. Parks s.n. 00 July 1943
Erysiphe polygoni DC.
USA, California, Del Norte, Smith River