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

Basionym: Lecidea gothoburgensis H. Magn., Göteborgs Kungl. Vetensk.-och Vitterh. Samh. handl., Ser. 4 29 (no. 4): 2 (1925).

Synonyms: Index Fungorum

Protolog: Data lacking.

Protolog type data: Data lacking.

Type locality: Sweden, Göteborg, Botanical Garden, on steep rocks, 1923, A. H. Magnusson 7614a (UPS - lectotype). Lectotypification by Oberhollenzer & Wirth (1985: 2).

Type locality coordinates: 57°40'58.37?N, 11°57'1.4?E; 57.682881°, 11.950389°.

Molecular barcode: Data lacking.

Thallus: pale grey, areolate; areoles either dispersed or contiguous, flat to slightly convex; soralia usually concolorous with the thallus, rounded, often delimited by a raise margin; prothallus black, well-developed between areoles and at margin; medulla I- (rarely I+ violet). Apothecia uncommon; unknown in North American collections; generally small, 0.3-0.9 mm diam., but occasionally larger, sessile. Ascospores broad ellipsoid, 7-10 x 5-7 µm (Fryday 2008: 305).

Photobiont: Data lacking.

Chemistry: K-, C-, Pd-, UV+ white (medulla). Divaricatic acid by TLC (Fryday 2008: 305).

Ecology: Saxicolous on hard siliceous rocks, usually in shaded habitats (Fryday 2008: 305).

Distribution: Great Britain, Sweden, 3 localities in North America (Maine, Quebec). Database

Molecular data: Genbank

Mycobank: Mycobank

Note:

Pictures: Tropical Lichens