A.B. Seymour and F.S. Earle [1-550, plus extras]

University of North Carolina at Chapel Hill Herbarium
Catalog #: NCU-F-0018515
Harper, Robert Almer #s.n. 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Lake, Lake Forest, Illinois

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP2215
R. A. Harper s.n. 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Du Page, Lake Forest

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00052032
R. A. Harper s.n. 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Lake Forest

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00051928
R. A. Harper s.n. 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Lake, Lake Forest;

Michigan State University Herbarium
Catalog #: MSC0214746
R. A. Harper s.n. 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Lake Forest

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000249293
R. A. Harper #479 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Du Page, Lake Forest

Louisiana State University, Bernard Lowy Mycological Herbarium
Catalog #: LSU00157588
R. A. Harper #s.n. 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Lake, Lake Forest

Field Museum of Natural History
Catalog #: C0285123F
f7cda212-c192-45e0-841c-a6a001c48d58
R. A. Harper #s.n. 00 October 1892
Erysiphe cichoracearum DC. DC.
U.S.A., Illinois, Lake, Lake Forest; Lake Forest

Cornell University, Plant Pathology Herbarium
Catalog #: S.E.,Econ.F.0479
R.A. Harper s.n. 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Lake, Lake Forest;

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0083671
R.A. Harper s.n. 00 October 1892
Erysiphe cichoracearum DC.
USA, Illinois, Lake Forest

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0014933
R.A. Harper #s.n. 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Lake Forest;

Purdue University, Kriebel Herbarium
Catalog #: PUL00027638
RA Harper s.n. 00 October 1892
Erysiphe cichoracearum DC.
United States, Illinois, Lake, Lake Forest;