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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00684
s.n.
Polythrincium trifolii Knze. & Fr.
United States, California

University of Michigan Herbarium
Catalog #: 329858
H. E. Parks #5020 00 May 1935
Polythrincium trifolii Kunze
USA, California, Humboldt, Trinidad, Spruce Cove.

University of California Berkeley, University Herbarium
Catalog #: UC637221
H. E. Parks #5020 00 May 1935
Polythrincium trifolii Kunze
USA, California, Humboldt, Spruce Cove, Trinidad

University of Illinois Herbarium
Catalog #: ILL00082975
H. E. Parks #5020 00 May 1935
Polythrincium trifolii Kunze
United States, California, Humboldt, Spruce Cove, Trinidad

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0033232
H.E. Parks #5020 00 May 1935
Polythrincium trifolii Kunze
United States, California, Humboldt, Spruce Cove, Trinidad

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0097869
H.E. Parks #5020 00 May 1935
Polythrincium trifolii Kunze
USA, California, Humboldt, Spruce Cove, Trinidad