Arthonia polymorpha Ach.
Annotated by G. K. M..

Washington: Clallam County: Dungeness.
48.14694° N, 123.12194° W,
Datum: WGS 84. Uncertainty: 6428 meters. Coordinate Source: GeoLocate.
On smooth bark Salix scouleri. Substrate: corticolous.

A. S. Foster 2594, Sep 10, 1913
WTU, Barcode: WTU-L-034688