Beitr. Naturk. Forsch. Südwestdeutschl. 31: 92 (1972).

Basionym: Lecidea rivulosa var. [beta] mollis Wahlenb., Fl. Lapp.: 472 (1812).

Synonyms: Index Fungorum

Protolog: Data lacking.

Protolog type data: Data lacking.

Type locality: Norway, Finmark, Rypklubb, 8.6.1802, G. Wahlenberg (UPS - lectotype, fide Hertel 1997: 197).

Type locality coordinates: Data lacking.

Molecular barcode: Data lacking.

Thallus: pale grey, regularly and finely cracked, areoles flat, contiguous (groups of areoles dispersed on a black prothallus in some North American material); black, delimiting prothallus at margin; medulla I-. Apothecia to 1 mm diam., rounded, discrete, sessile. Ascospores broad-ellipsoid, 8-10 x 5-6 µm (Fryday 2008: 307).

Photobiont: Data lacking.

Chemistry: K-, C-, Pd-, UV+ white (medulla). Divaricatic acid by TLC (Fryday 2008: 307).

Ecology: Data lacking.

Molecular data: Genbank

Distribution: Database

Note: