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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.01295
s.n.
Pertusaria ambigens (Nyl.) Tuck.

USDA United States National Fungus Collections
Catalog #: BPI 949005
s.n.
Pertusaria ambigens (Nyl.) Tuck.
United States, California