Rhizocarpon diploschistinum Lumbsch et al.
Annotated by Daphne Stone, Heather Root.

Washington: Douglas County: South of Grand Coulee on Banks Lake, Steamboat Rock State Park. On a flat basin between 120 meter high, horseshoe-shaped cliffs with PIPO/PSME forest along cliff bases. Elev. 578 m.
47.874339° N, 119.0754972° W
Coordinate Source: Specimen Label. Invalid coordinates (located outside county bounds).
Stand of Artemisia tridentata ssp. wyomingensis with Stipa comata, Pseudoroegneria stipitata, Chrysothamnus nauseosus and Bromus mollis, with some bare sandy loam soil. On soil. Substrate: terricolous.

M. Russell CR-31, Sep 24, 2013
With A. Hardman, D. Stone, H. Root, C. Gueidan
WTU, Barcode: WTU-L-025079