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

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

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

Field Museum of Natural History
Catalog #: C0241542F
44ccc834-073b-4143-8982-168e95c12c09
H. E. Parks #s.n. 24 March 1931
Hypoxylon fuscum (Pers.) Fr. (Pers.) Fr.
U.S.A., California, Humboldt, Trinidad; 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;

USDA United States National Fungus Collections
Catalog #: BPI 589043
Parks H. E. s.n. 24 March 1931
Hypoxylon fuscum (Pers.) Fr.
United States, California, Trinidad, Humboldt Co.

USDA United States National Fungus Collections
Catalog #: BPI 948028
Parks H. E. s.n. 24 March 1931
Hypoxylon fuscum (Pers.) Fr.
United States, California, Humboldt, Trinidad

USDA United States National Fungus Collections
Catalog #: BPI 056953
Parks H. E.; Tracy J. P. #11027; 11027 27 June 1934
Puccinia cirsii Lasch
United States, California, Summit, Horse Mountain, Humboldt Co. Altitude 4500 Feet, Copper Mine road

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