Pertusaria mccroryae C.R. Björk, Goward & T. Sprib.

Washington: Skamania County: West of Boundary Trail to Ghost Lake, Mt. St. Helens National Monument, NE side of Mt. St. Helens. Near Crisafulli Plot Ghost Tephra-60. Elev. 1176 m.
46.31309° N, 122.06511° W; UTM Zone 10T, 5719981E, 5129260N
Gentle slope, on remnant forest with dense Abies -- Tsuga mertensiana. On Abies trunk.

McCune 32361, Sep 15, 2012
WTU, Barcode: WTU-L-035720