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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00456
s.n.
Geopyxis (Pers.) Sacc.

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0086142
J.P. Tracy #3671 00 May 1931
Geopyxis vulcanalis Peck
USA, California, Humboldt, Trinidad; Bishop Pine Lodge

University of Georgia, Julian H. Miller Mycological Herbarium
Catalog #: GAM00010213
Joseph P. Tracy s.n. 00 May 1931
Geopyxis vulcanalis Peck
USA, California, Humboldt, Trinidad; Bishop Pine Lodge

University of Cincinnati, Margaret H. Fulford Herbarium
Catalog #: CINC-F-0002079
Tracy, J.P. #3671 00 May 1931
Geopyxis vulcanalis (Peck) Sacc.
United States, California, Humboldt, Trinidad; Bishop Pine Lodge, Trinidad

University of North Carolina at Chapel Hill Herbarium
Catalog #: NCU-F-0011564
Tracy, Joseph P. #3671 00 May 1931
Geopyxis vulcanalis Peck
United States, California, Humboldt, Trinidad; Bishop Pine Lodge, Trinidad, Humboldt County