Brenckle, Fungi Dakot.
J.F. Brenckle [1-675, plus extras]

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP23203
O. A. Stevens s.n. 07 October 1914
Erysiphe cichoracearum DC.
United States, North Dakota, near Fargo

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00051989
O. A. Stevens s.n. 07 October 1914
Erysiphe cichoracearum DC.
United States, North Dakota, Near Fargo

Cornell University, Plant Pathology Herbarium
Catalog #: F.Dakotenses-0308b
O.A. Stevens s.n. 07 October 1914
Erysiphe cichoracearum DC.
United States, North Dakota, near Fargo

Brown University Herbarium
Catalog #: CBRU00000650
OA Stevens s.n. 07 October 1914
Erysiphe chicoracearum
United States, North Dakota, Cass, Fargo;

Purdue University, Kriebel Herbarium
Catalog #: PUL00022982
OA Stevens s.n. 07 October 1914
Erysiphe cichoracearum DC.
United States, North Dakota, Cass, near Fargo