J.B. Ellis, B.M. Everhart, and E. Bartholomew [1501-5100, plus extras]

Cornell University Plant Pathology Herbarium
Catalog #: F.Columbiani-4727
C. A. Ludwig s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, Tippecanoe, West Lafayette;

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00052572
C. A. Ludwig s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, Tippecanoe, West Lafayette;

University of Florida Herbarium
Catalog #: FLAS-F-01545
C. A. Ludwig s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, Tippecanoe, West Lafayette

University of California Berkeley, University Herbarium
Catalog #: UC1458324
C. A. Ludwig s.n. 15 July 1915
Erysiphe polygoni DC.
USA, Indiana, Tippecanoe, West Lafayette

Field Museum of Natural History
Catalog #: C0285399F
02cd4e47-2b2e-413a-898e-4ed9a8fd4605
C. A. Ludwig #s.n. 15 July 1915
Erysiphe polygoni DC. DC.
U.S.A., Indiana, Tippecanoe, West Lafayette; West Lafayette

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP2419
C.A. Ludwig s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, Tippecanoe, West Lafayette

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0251462
C.A. Ludwig s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, West Lafayette;

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0015738
C.A. Ludwig #s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, West Lafayette;

Brown University Herbarium
Catalog #: CBRU00000765
CA Ludwig s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, Tippecanoe, West Lafayette;

Purdue University, Kriebel Herbarium
Catalog #: PUL00021511
CA Ludwig s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, Tippecanoe, West Lafayette;

USDA United States National Fungus Collections
Catalog #: BPI 563979
Ludwig C. A. s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, West Lafayette

USDA United States National Fungus Collections
Catalog #: BPI 564059
Ludwig C. A. s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, West Lafayette

USDA United States National Fungus Collections
Catalog #: BPI 966889
Ludwig C. A. #s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, West Lafayette

USDA United States National Fungus Collections
Catalog #: BPI 966989
Ludwig C. A. #s.n. 15 July 1915
Erysiphe polygoni DC.
United States, Indiana, West Lafayette