Koerberia biformis A. Massal.
Annotated by P. M. Jorgensen, 2001.

Washington: Skamania County: North of Columbia River, the south foothill of Dog Mountain, northeast of Grant Lake. Elev. 100-120 m.
45° 41.9' N, 121° 43.1' W
Coordinate Source: Specimen label.
Corticulous on trunk of dwarf specimen of Quercus garryana in south facing slope. Substrate: corticolous.

T. Tonsberg L70301, May 3, 2001
WTU, Barcode: WTU-L-014487