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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00320
s.n.
Hypoxylon fuscum (Pers.) Fr.
United States, California

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP35236
H. E. Parks s.n. 24 March 1931
Hypoxylon fuscum (Pers.) Fr.
United States, California, Humboldt, Trinidad

Michigan State University Herbarium
Catalog #: MSC0212961
H. E. Parks s.n. 24 March 1931
Hypoxylon fuscum (Pers.) Fr.
United States, California, Humboldt, Trinidad;

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0091925
H.E. Parks #320 24 March 1931
Hypoxylon fuscum (Pers.) Fr.
USA, California, Humboldt, Trinidad;

Field Museum of Natural History
Catalog #: C0241542F
H.E. Parks #s.n. 24 March 1931
Hypoxylon fuscum (Pers.) Fr.
United States, California, Humboldt, Trinidad;

University of North Carolina at Chapel Hill Herbarium
Catalog #: NCU-F-0013287
Parks, Harold Ernest #s.n. 24 March 1931
Hypoxylon fuscum (Pers.) Fr.
United States, California, Humboldt, Trinidad