W.B. Cooke [1-450]

Cornell University, Plant Pathology Herbarium
Catalog #: WBC,Myc.N.A.0020
s.n.
Erysiphe graminis DC.

USDA United States National Fungus Collections
Catalog #: BPI 952614
s.n.
Erysiphe graminis DC.
United States

University of Wyoming, Wilhelm G. Solheim Mycological Herbarium
Catalog #: RMS0024501
1331 #s.n. 07 July 1939
Erysiphe graminis DC.
USA, California, Siskiyou, Mount Shasta, vicinity of Bear Springs

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0075685
W. B. Cooke #13331 07 July 1939
Blumeria graminis (DC.) Speer
USA, California, Siskiyou, Mount Shasta

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP21131
W.B. Cooke s.n. 07 July 1939
Erysiphe graminis DC.
United States, California, vicinity of Bear Springs