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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00882
s.n.
Erysiphe cichoracearum DC.

USDA United States National Fungus Collections
Catalog #: BPI 948592
s.n.
Erysiphe cichoracearum DC.
United States, California

Field Museum of Natural History
Catalog #: C0285287F
6db629bb-aca2-4aff-8d22-0bf0bf985fc7
J. P. Tracy #14936 10 June 1936
Erysiphe cichoracearum DC. DC.
U.S.A., California, Humboldt, South Fork of Trinity River, west of mouth

University of California Berkeley, University Herbarium
Catalog #: UC1029206
J. P. Tracy #14936 10 June 1936
Erysiphe asperifoliorum Grev.
USA, California, Humboldt, On mountain slopes west of mouth, South Fork of Trinity River

University of Georgia, Julian H. Miller Mycological Herbarium
Catalog #: GAM00008580
Joseph P. Tracy s.n. 10 June 1936
Erysiphe cichoracearum DC.
USA, California, Humboldt, On mountain slopes west of mouth, South Fork of Trinity River

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP40849
Joseph P. Tracy s.n. 10 June 1936
Erysiphe cichoracearum DC.
United States, California, Humboldt, west of mouth of South Fork of Trinity River

Louisiana State University, Bernard Lowy Mycological Herbarium
Catalog #: LSU00155876
Joseph P. Tracy #14936 10 June 1936
Erysiphe cichoracearum DC.
United States, California, Humboldt, South Fork of Trinity River.

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0014886
Joseph P. Tracy #14936 10 June 1936
Erysiphe cichoracearum DC.
United States, California, Humboldt, On mountain slopes west of mouth, South Fork of Trinity River

University of Florida Herbarium
Catalog #: FLAS-F-44467
Joseph P. Tracy #14936 10 June 1936
Erysiphe cichoracearum DC.
United States, California, Humboldt, west of mouth of South Fork of Trinity River