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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00316
s.n.
Elvela mitra Schaeff.

Michigan State University Herbarium
Catalog #: MSC0212957
H. E. Parks s.n. 00 November 1931
Elvela mitra Schaeff.
United States, California, Humboldt, Trinidad; in coniferous woods

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP35290
H.E. Parks s.n. 00 November 1931
Elvela mitra Schaeff.
United States, California, Humboldt, Trinidad

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0090654
H.E. Parks s.n. 00 November 1931
Helvella lacunosa Afzel.
USA, California, Humboldt, Trinidad;

University of Cincinnati, Margaret H. Fulford Herbarium
Catalog #: CINC-F-0001617
Parks, H.E. #s.n. 00 November 1931
Elvela mitra Schaeff.
United States, California, Humboldt, Trinidad; Trinidad

University of North Carolina at Chapel Hill Herbarium
Catalog #: NCU-F-0026776
Parks, Harold Ernest #s.n. 00 November 1931
Helvella californica W. Phillips
United States, California, Humboldt, Trinidad