C.F. Baker

USDA United States National Fungus Collections
Catalog #: BPI 564902
Copeland E. B. s.n. 02 July 1903
Erysiphe polygoni DC.
United States, California, Klamathon, Siskiyou Co.

USDA United States National Fungus Collections
Catalog #: BPI 941264
Copeland, E.B. #s.n. 02 July 1903
Erysiphe communis (Wallr.) Schltdl.
United States, California, Siskiyou, Klamathon

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00052304
Dr. E. B. Copeland s.n. 02 July 1903
Erysiphe communis (Wallr.) Schltdl.
United States, California, Siskiyou, Klamathon;

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0015691
E. B. Copeland #s.n. 02 July 1903
Erysiphe polygoni DC.
United States, California, Siskiyou, Klamathon;