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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.01040
s.n.
Hypoxylon

USDA United States National Fungus Collections
Catalog #: BPI 948750
s.n.
Hypoxylon rubigineoareolatum Rehm
United States, California