Pertusaria hemisphaerica (Flörke) Erichsen
Annotated by Mildred Arnot.

Washington: Snohomish County: Mount Baker-Snoqualmie National Forest. Barclay Lake. From highway 2 take Forest Service road 6024 to Barclay Lake trail head. Take trail # 1055 to Barclay Lake. Elevation of Barclay Lake 2422 feet. Elev. 2430 ft.
47° 47.139' N, 121° 25.717' W; T27N R11E S32 NW of SW
Coordinate Source: Specimen label.
Coniferous forest. On moss over bark of an Abies amabilis trail-side along Barclay Lake. Soralia gray, C+ red, KC+ red. Substrate: muscicolous.

Elroy Burnett L799, Nov 2, 1995
WTU, Barcode: WTU-L-018516