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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00491
s.n.
Peniophora crassa Burt

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0026442
H. E. Parks #3691 00 May 1931
Peniophora crassa Burt
United States, California, Humboldt, Trinidad;

University of California Berkeley, University Herbarium
Catalog #: UC1886945
H. E. Parks #3691 00 May 1931
Dacryobolus karstenii (Bres.) Oberw. ex Parmasto
USA, California, Humboldt, Trinidad

University of Illinois Herbarium
Catalog #: ILL00062372
HE Parks #3691 00 May 1931
Peniophora crassa Burt
USA, California, Humboldt, Trinidad; Trinidad

University of Cincinnati, Margaret H. Fulford Herbarium
Catalog #: CINC-F-0003253
Parks, H.E. #3691 00 May 1931
Peniophora crassa Burt
United States, California, Humboldt, Trinidad; Trinidad