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

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-V-0044979
L. Bonar s.n. 01 October 1949
Clasterosporium obclavatum (Cooke) Sacc.
USA, California, Marin, Summit of Mt. Tamaplais

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP39040
Lee Bonar s.n. 01 October 1949
Clasterosporium obclavatum Bonar
United States, California, Marin, summit of Mount Tamalpais

Michigan State University Herbarium
Catalog #: MSC0214087
Lee Bonar s.n. 01 October 1949
Clasterosporium obclavatum Bonar
United States, California, Marin, Summit of Mt. Tamalpais

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0001363
Lee Bonar #s.n. 01 October 1949
Clasterosporium obclavatum Bonar
United States, California, Marin, Summit of Mt. Tamalpais