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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.01077
s.n.
Polyporus adustus (Willd.) Fr.

University of Georgia, Julian H. Miller Mycological Herbarium
Catalog #: GAM00011724
Harold E. Parks s.n. 00 March 1952
Polyporus adustus (Willd.) Fr.
USA, California, Humboldt, Trinidad; Spruce Cove

University of North Carolina at Chapel Hill Herbarium
Catalog #: NCU-F-0010771
Parks, Harold Ernest #7529 00 March 1952
Polyporus adustus (Willd.) Fr.
United States, California, Humboldt, Spruce Cove, Trinidad