in Sheard & Mayrhofer, Bryologist 105, 4: 655 (2002).

Protolog type data: Type: U.S.A. Colorado. Boulder Co., Bluebell Canyon, base of Flatirons, near Boulder, on Acer glabrum, 6,000 ft (1,830 m), 5 February 1954, W. A. Weber and S. Shushan S1473 (COLO, holotype; WIS, isotype).

Type locality: USA, Colorado. Boulder County, Bluebell Canyon, base of Flatirons, near Boulder, on Acer glabrum, 1830 m, 5 February 1954, W. A. Weber & S. Shushan S1473 (COLO - holotype; WIS - isotype).

Distribution Database: Distributions

Distribution Database: Discover Life

Picture Database: Tropical Lichens

Molecular Database: Genbank

Synonym Database: Index Fungorum

Synonym Database: Mycobank