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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00504
s.n.
Poria

USDA United States National Fungus Collections
Catalog #: BPI 948207
s.n.
Poria ferrea (Pers.) Bourdot & Galzin
United States, California

University of California Berkeley, University Herbarium
Catalog #: UC471771
H. E. Parks #3967 30 January 1932
Fuscoporia ferrea (Pers.) G. Cunn.
USA, California, Humboldt, Trinidad, Spruce Cove

University of Illinois Herbarium
Catalog #: ILL00063963
H. E. Parks #3967 00 March 1933
Poria ferrea (Pers.) Bourdot & Galzin
USA, California, Humboldt, Trinidad; Spruce Cove

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0033305
H. E. Parks #3967 00 March 1933
Poria ferrea (Pers.) Bourdot & Galzin
United States, California, Humboldt, Trinidad; Spruce Cove

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0097909
H.E. Parks #3967 00 March 1933
Poria ferrea (Pers.) Bourdot & Galzin
USA, California, Humboldt, Spruce Cove, Trinidad

University of Cincinnati, Margaret H. Fulford Herbarium
Catalog #: CINC-F-0005643
Parks, H.E. #3967 00 March 1933
Fuscoporia ferrea (Pers.) G. Cunn.
United States, California, Humboldt, Trinidad; Spruce Cove

University of North Carolina at Chapel Hill Herbarium
Catalog #: NCU-F-0016390
Parks, Harold Ernest #3967 00 March 1933
Poria ferrea (Pers.) Bourdot & Galzin
United States, California, Humboldt, Spruce Cove, Trinidad