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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.01173
s.n.
Marssonina Magnus

University of California Berkeley, University Herbarium
Catalog #: UC1269681
L. Bonar s.n. 07 July 1958
Marssonina potentillae (Desm.) Magnus
USA, California, Tuolumne, Berkeley Recreation Camp, South Fork of Tuolumne River

University of Michigan Herbarium
Catalog #: 325565
L. Bonar #s. n. 07 July 1958
Marssonina potentillae (Desm.) Magnus
USA, California, Tuolumne, South fork of Tuolumne River, Berkeley Recreation Camp.

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP52779
Lee Bonar s.n. 07 July 1958
Marssonina potentillae (Desm.) Magnus
United States, California, Tuolumne, Berkeley Recreation Camp, South Fork of Tuolumne River

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0022319
Lee Bonar #s.n. 07 July 1958
Marssonina potentillae (Desm.) Magnus
United States, California, Tuolumne, Berkeley Recreation Camp, South Fork of Tuolumne River