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

Cornell University Plant Pathology Herbarium
Catalog #: CaliforniaF.00262
s.n.
Erysiphe aggregata Farl.

University of California Berkeley, University Herbarium
Catalog #: UC439482
H. E. Parks s.n. 10 August 1924
Erysiphe aggregata Farl.
USA, California, Humboldt, Van Duzen River

Field Museum of Natural History
Catalog #: C0285100F
74871aee-a9da-4ebb-902d-850ed1baf581
H. E. Parks & J. P. Tracy #s.n. 10 August 1924
Erysiphe aggregata (Peck) Farl. (Peck) Farl.
U.S.A., California, Humboldt, Van Duzen River

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00051896
H. E. Parks and J. P. Tracy s.n. 10 August 1924
Erysiphe aggregata Farl.
United States, California, Humboldt, Van Duzen River

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP2159
H. E. Parks; J. P. Tracy s.n. 10 August 1924
Erysiphe aggregata Farl.
United States, California, Humboldt, Van Duzen River

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0083619
H.E. Parks s.n. 10 August 1924
Erysiphe aggregata Farl.
USA, California, Humboldt, Van Duzen River

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0014826
H.E. Parks #s.n. 10 August 1924
Erysiphe aggregata Farl.
United States, California, Humboldt, Van Duzen River

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0212908
J. P. Tracy; H. E. Parks s.n. 10 August 1924
Erysiphe aggregata Farl.
United States, California, Humboldt, Van Duzen River

USDA United States National Fungus Collections
Catalog #: BPI 947971
Parks H. E. #s.n. 10 August 1924
Erysiphe aggregata (Peck) Farl.
United States, California, Humboldt, Van Duzen River

USDA United States National Fungus Collections
Catalog #: BPI 559169
Parks H. E.; Tracy J. P. s.n. 10 August 1924
Erysiphe aggregata (Peck) Farl.
United States, California, Van Duzen River, Humboldt Co.