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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00265
s.n.
Erysiphe polygoni DC.

University of California Berkeley, University Herbarium
Catalog #: UC439474
J. P. Tracy s.n. 15 September 1930
Erysiphe polygoni DC.
USA, California, Humboldt, Kneeland, Bald Hills

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00052585
J. P. Tracy and H. E. Parks s.n. 15 September 1930
Erysiphe polygoni DC.
United States, California, Humboldt, Bald Hills; Kneeland

Michigan State University Herbarium
Catalog #: MSC0212911
J. P. Tracy; H. E. Parks s.n. 15 September 1930
Erysiphe polygoni DC.
United States, California, Humboldt, Kneeland, Bald Hills

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0084510
J.P. Tracy #265 15 September 1930
Erysiphe pisi DC.
USA, California, Humboldt, Kneeland; Bald Hills

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0015690
J.P. Tracy #s.n. 15 September 1930
Erysiphe polygoni DC.
United States, California, Humboldt, Kneeland, Bald Hills

Field Museum of Natural History
Catalog #: C0285468F
J.P. Tracy #s.n. 15 September 1930
Erysiphe polygoni DC.
USA, California, Humboldt, Kneeland; Kneeland, Bald Hills

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP2510
Joseph P. Tracy; H. E. Parks s.n. 15 September 1930
Erysiphe polygoni DC.
United States, California, Humboldt, Kneeland, Bald Hills