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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00910
s.n.
Phoma

University of California Berkeley, University Herbarium
Catalog #: UC502830
J. P. Tracy #8815 29 June 1930
Phoma karstenii Berl. & Voglino
USA, California, Humboldt, Buck Mountain.

Louisiana State University, Bernard Lowy Mycological Herbarium
Catalog #: LSU00152210
Joseph P. Tracy #8815 29 June 1930
Phoma karstenii Berl. & Voglino
United States, California, Humboldt, Buck Mountain.

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0028207
Joseph P. Tracy #8815 30 June 1930
Phoma karstenii Berl. & Voglino
United States, California, Humboldt, Buck Mountain