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

Cornell University Plant Pathology Herbarium
Catalog #: CaliforniaF.00771
s.n.
Erysiphe cichoracearum DC.

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP38996
J. P. Tracy s.n. 15 August 1948
Erysiphe cichoracearum DC.
United States, California, Humboldt, ridge east of Grove's Prairie, Trinity Summit

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP40091
J. P. Tracy s.n. 15 August 1948
Erysiphe cichoracearum DC.
United States, California, Humboldt, ridge east of Grove's Prairie, Trinity Summit

Field Museum of Natural History
Catalog #: C0285288F
6daad345-7b94-46a0-bb7d-1cb222c29900
J. P. Tracy #18129 15 August 1948
Erysiphe cichoracearum DC. DC.
U.S.A., California, Humboldt, Trinity Summit, on ridge east of Grove's Prairie

University of California Berkeley, University Herbarium
Catalog #: UC966350
J. P. Tracy #18129 15 August 1948
Erysiphe galii S. Blumer
USA, California, Humboldt, ridge east of Grove's Prairie, Trinity Summit

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0014885
Joseph P. Tracy #18129 15 August 1948
Erysiphe cichoracearum DC.
United States, California, Humboldt, Ridge east of Grove's Prairie, Trinity Summit

USDA United States National Fungus Collections
Catalog #: BPI 948481
Joseph P. Tracy #18129 15 August 1948
Erysiphe cichoracearum DC.
United States, California, Humboldt, Ridge east of Grove's Prairie, Trinity Summit

USDA United States National Fungus Collections
Catalog #: BPI 560426
Tracy Joseph P. #18129 15 August 1948
Erysiphe cichoracearum DC.
United States, California, Trinity Summit, Humboldt Co. alt. 5100 ft., Ridge E. of Grove's Prairie