Peltigera chionophila Goward & Goffinet
Annotated by Trista Crook, 22 Dec 2021. Sources: Macrolichens of the Pacific Northwest, 2nd Ed..

Idaho: Lemhi County: Salmon-Challis National Forest. About 1.7 mi N of Cougar Point Campground along Williams Creek Road (FSR 021) to trail heading S and W of road. Near Williams Creek Summit. Elev. 7300 ft.
45.096375° N, 114.073553° W
Datum: NAD 83. Uncertainty: 20 meters. Coordinate Source: GPS.
Pinus contorta forest with Vaccinium and Arnica cordifolia. Abies saplings. Growing on ground under Abies. Thallus blue-green when wet, lacking soredia, upper surface lightly tomentose towards tips, lobes c. 0.5-1.5 cm broad, margins upturned, thallus 13.5 cm dm. Photobiont a green alga. Apothecia saddle-shaped, erect, lower surface corticate. Cephalodia forming laminal scales, scales firmly attached, some scalloped. Phenology: Spores.

Trista Crook PM13, Jul 18, 2021
IDS