Anonymous, Calif. Fungi
Herbarium of the University of California. [1- ? 1425]

Cornell University Plant Pathology Herbarium
Catalog #: CaliforniaF.00682
s.n.
Polyporus leucospongia Cooke

USDA United States National Fungus Collections
Catalog #: BPI 211923
Gibbons M. S. s.n. 29 June 1942
Polyporus leucospongia Cooke & Harkn.
United States, California, Huntington Lake, Fresno Co.

USDA United States National Fungus Collections
Catalog #: BPI 211661
Gibbons Mary S. s.n. 29 June 1942
Polyporus leucospongia Cooke & Harkn.
United States, California, Huntington Lake, Fresno Co.; Huntington Lake, Fresno Co.

University of North Carolina at Chapel Hill Herbarium: Fungi
Catalog #: NCU-F-0010213
Gibbons, Mary S. #s.n. 29 June 1942
Polyporus leucospongia Cooke
United States, California, Fresno, Huntington Lake

USDA United States National Fungus Collections
Catalog #: BPI 948392
Gibbons, Mary S. #s.n. 29 June 1942
Polyporus leucospongia Cooke & Harkn.
United States, California, Fresno, Huntington Lake

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0097625
M.S. Gibbons #s.n. 29 June 1942
Polyporus leucospongia Cooke
USA, California, Fresno, Huntington Lake

University of California Berkeley, University Herbarium
Catalog #: UC671396
Mary R. Gibbons #175 29 June 1942
Oligoporus leucospongia (Cooke & Harkn.) Gilb. & Ryvarden
USA, California, Fresno, Huntington Lake.

University of Georgia, Julian H. Miller Mycological Herbarium
Catalog #: GAM00011801
Mary S. Gibbons s.n. 29 June 1942
Polyporus leucospongia Cooke
USA, California, Fresno, Huntington Lake

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0214065
Mary S. Gibbons s.n. 29 June 1942
Polyporus leucospongia Cooke
United States, California, Fresno, Huntington Lake