D. Griffiths [1-400, plus extras]

Cornell University Plant Pathology Herbarium
Catalog #: Griff.,W.A.F.0135
s.n.
Erysiphe R. Hedw. ex DC.

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0016015
David Griffiths #s.n. 00 August 1898
Erysiphe polygoni DC.
United States, Wyoming, near Buffalo

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00052577
Williams & Griffiths s.n. 00 August 1898
Erysiphe polygoni DC.
United States, Wyoming, Johnson, near Buffalo

Purdue University, Kriebel Herbarium
Catalog #: PUL00022699
Williams and Griffiths s.n. 00 August 1898
Erysiphe polygoni DC.
United States, Wyoming, Johnson, Near Buffalo

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP2495
Williams; D. Griffiths s.n. 00 August 1898
Erysiphe polygoni DC.
United States, Wyoming, near Buffalo

USDA United States National Fungus Collections
Catalog #: BPI 565018
Williams; Griffiths s.n. 00 August 1898
Erysiphe polygoni DC.
United States, Wyoming, Buffalo near

USDA United States National Fungus Collections
Catalog #: BPI 796641
Williams; Griffiths s.n. 00 August 1898
Erysiphe polygoni DC.
United States, Wyoming, Buffalo near