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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00923
s.n.
Physoderma pluri-annulatum (B.&C.) Karling
United States, California

University of Michigan Herbarium
Catalog #: 334835
J. P. Tracy #13172 08 April 1934
Physoderma pluriannulatum (Berk. & M.A. Curtis) Karling
USA, California, Humboldt, Between Miranda and Redway, South Fork of Eel River.

University of Michigan Herbarium
Catalog #: 334837
J. P. Tracy #13172 08 April 1934
Physoderma pluriannulatum (Berk. & M.A. Curtis) Karling
USA, California, Humboldt, Between Miranda and Redway, South Fork of Eel River.

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0063691
J.P. Tracy #13172 08 April 1934
Urophlyctis pluriannulata Magnus
United States, California, Humboldt, South Fork of Eel River, between Miranda and Redway.; 40.183871 -123.773472

Louisiana State University, Bernard Lowy Mycological Herbarium
Catalog #: LSU00152382
Joseph P. Tracy #13172 08 April 1934
Physoderma pluriannulatum (Berk. & M.A. Curtis) Karling
United States, California, Humboldt, South Fork of Eel River, between Miranda and Redway.