D. Griffiths [1-400, plus extras]

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00081145
Griffiths s.n. 00 August 1897
Sphaerotheca humuli (DC.) Burrill
United States, Wyoming, Devils Tower

Purdue University, Kriebel Herbarium
Catalog #: PUL00022733
Griffiths and Carter s.n. 00 August 1897
Sphaerotheca humuli (DC.) Burrill
United States, Wyoming, Crook, Devils Tower

USDA United States National Fungus Collections
Catalog #: BPI 605115
Griffiths; Carter s.n. 00 August 1897
Sphaerotheca humuli (DC.) Burrill
United States, Wyoming, Devils Tower

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP11482
Griffiths; Carter s.n. 00 August 1897
Sphaerotheca humuli (DC.) Burrill
United States, Wyoming, Devils Tower