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

Cornell University Plant Pathology Herbarium
Catalog #: F.Columbiani-4501
C. A. Ludwig s.n.
Aecidium hydnoideum Berk. & M.A. Curtis

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00070238
C. A. Ludwig s.n. 24 June 1913
Puccinia extensicola hydnoidea
United States, Indiana, Everton;

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000223552
C. A. Ludwig #4501 24 June 1913
Aecidium hydnoideum Berk. & M.A. Curtis
United States, Indiana, Fayette, Everton

Field Museum of Natural History
Catalog #: C0292425F
e786d36a-8073-4c6e-8ebe-5c4b759d5eb5
C. A. Ludwig #s.n. 24 June 1913
Aecidium hydnoideum Berk. & M. A. Curtis Berk. & M. A. Curtis
U.S.A., Indiana, Fayette, Everton; Everton

University of California Berkeley, University Herbarium
Catalog #: UC1885298
C. A. Ludwig #s.n. 24 June 1913
Aecidium hydnoideum Berk. & M.A. Curtis
USA, Indiana, Fayette, Everton

University of California Berkeley, University Herbarium
Catalog #: UC1460330
C. A. Ludwig #s.n. 24 June 1913
Puccinia dioicae Magnus
USA, Indiana, Everton

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0000401
C.A. Ludwig s.n. 24 June 1913
Aecidium hydnoideum Berk. & M.A. Curtis
United States, Indiana, Everton;

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0251236
C.A. Ludwig s.n. 24 June 1913
Aecidium hydnoideum Berk. & M.A. Curtis
United States, Indiana, Everton;

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0037826
C.A. Ludwig #s.n. 24 June 1913
Puccinia dioicae Magnus
United States, Indiana, Everton;

Brown University Herbarium
Catalog #: CBRU00002681
CA Ludwig s.n. 24 June 1913
Aecidium hydnoideum Berk. & M.A. Curtis
United States, Indiana, Fayette, Everton;

USDA United States National Fungus Collections
Catalog #: BPI 066740
Ludwig C. A. s.n. 24 June 1913
Puccinia extensicola var. hydnoidea
United States, Indiana, Everton

USDA United States National Fungus Collections
Catalog #: BPI 1103420
Ludwig C. A. s.n. 24 June 1913
Aecidium hydnoideum Berk. & M.A. Curtis
United States, Indiana, Everton

USDA United States National Fungus Collections
Catalog #: BPI 966663
Ludwig C. A. #s.n. 24 June 1913
Aecidium hydnoideum Berk. & M.A. Curtis
United States, Indiana, Everton

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP15326
Ludwig, C.A. s.n. 24 June 1913
Aecidium hydnoideum B. & C.
United States, Indiana, Fayette, Everton