U.S.A., Colorado, Boulder, West base of Steamboat Mountain, foothills of Front Range 2 miles northwest of Lyons.
40.2399 -105.28587 +-900m.
1900 meters (6232ft)
Abundant on north face of cliffs above stream
Plants brown, polyphyllous, extremely fragile and tightly attached to rock; underside of thallus coarsely papillose, usually dark; thallus pruinose; Lichenes Exsiccati Distributed by the University of Colorado Museum, Boulder; William A. Weber, Curator|13