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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.01287
s.n.
Odontotrema hemisphaericum (Fr.) Rehm
United States, California

University of California Berkeley, University Herbarium
Catalog #: UC1402998
L. Bonar s.n. 15 August 1965
Odontotrema majusculum Rehm
USA, California, Lassen, Above west shore of Silver Lake, Lassen National Forest

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0025754
Lee Bonar #s.n. 15 August 1965
Odontotrema majusculum Rehm
United States, California, Lassen, Above west shore of Silver Lake, Lassen National Forest