Ellis, N. Amer. Fungi
J.B. Ellis [1 - 1500, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 958349
s.n.
Polyporus conchatus

University of Michigan Herbarium
Catalog #: 149153
E. W. D. Holway #s. n.
Polyporus conchatus
USA, Iowa, Winneshiek, Decorah

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00053094
E. W. Holway s.n.
Foma conchatus
United States, Iowa, Winneshiek, Decorah;

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00065984
E. W. Holway s.n.
Polyporus conchatus
United States, Iowa, Decorah;

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0254162
E. W. Holway s.n.
Polyporus conchatus
United States, Iowa, Decorah;

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000193533
E. W. Holway #918
Polyporus conchatus

Academy of Natural Sciences of Drexel University
Catalog #: PH00306302
E. W. Holway #s.n.
Polyporus conchatus
United States, Iowa, Decorah;

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0016547
E. W. Holway. s.n.
Polyporus conchatus
United States, Iowa, Winneshiek, Decorah;

Academy of Natural Sciences of Drexel University
Catalog #: PH00321917
E.W. Holway #s.n.
Polyporus conchatus Fr.
United States, Iowa, Winneshiek, Decorah

University of Illinois Herbarium
Catalog #: ILL00098110
EW Holway s.n.
Polyporus conchatus
United States, Iowa, Winneshiek, Decorah; Decorah

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0087657
EW Holway s.n.
Polyporus conchatus
United States, Iowa, Winneshiek, Decorah

USDA United States National Fungus Collections
Catalog #: BPI 228934
Holway E. W. s.n.
Fomes conchatus (Pers.) Gillet
United States, Iowa, Decorah