Protologue type data: Mexico: Coahuila: 27 miles west of Paila along Route 40, cactus-covered hillside, 25°35'N, 102°35'W, 1200 m, on sandstone, T. H. Nash III 13,957 (Holotype, ASU).

Type locality: Mexico, Coahuila, 27 miles west of Paila along Route 40, cactus-covered hillside, on sandstone, s.d., 1200 m, T. H. Nash 13,957 (ASU - holotype).

Type locality coordinates: 25°35'N, 102°35'W; Data lacking.

ITS barcode: Data lacking.

Description: Lichen. Thallus areolate, up to 5 cm across; areoles: round to irregularly lobed, eventually subsquamulose, ... .

Photobiont: Data lacking.

Chemistry: Hypoprotocetraric acid (major), acaranoic acid (major), 4-0-demethylnotatic acid (minor), and rhizocarpic acid (major) (HPLC, J.A. Elix, pers. comm. (Knudsen 2007: 5).

Ecology: On granite, sandstone, and volcanic rock.

Distribution type: Data lacking.

Taxonomy: Data lacking.

Note:

Distribution Database: Distributions

Distribution Database: Discover Life

Picture Database: Tropical Lichens

Molecular Database: Genbank

Synonym Database: Index Fungorum

Synonym Database: Mycobank