Mycotaxon 27: 564 (1986).

Synonyms: Index Fungorum

Protolog: Data lacking.

Type collection: Sirimon Track, Mt. Kenya, elev. 3300-3400 m, Kenya, F. R. Fosberg and O. M. Mwangangi 49919, 18 March 1968 (US, holotype; PRE, isotype).

Type locality: Kenya, Mt. Kenya, Sirimon Track, 3350 m, 18.3.1968, Fosberg & Mwangangi 49919, (US - holotype, O, PRE - isotypes).

Type locality coordinates: 0°9'S, 37°19'E.

Molecular barcode: Data lacking.

Thallus: loosely adnate, firm, sometimes forming thick pulvinate colonies 10 - 20 cm or more broad and several cm thick, bright yellowish green; lobes sublinear, 2-4 mm wide, dichotomously branched, crowded, and imbricate; upper surface weakly to rather distinctly white-maculate with age, shiny, isidia and soredia lacking; medulla white; lower surface plane, black at the center with a broad brown zone at the margins, densely rhizinate, the rhizines initially brown but soon blackening, simple to furcate, 0.5 - 1.5 mm long. Apothecia well developed, subpedicellate, 5 - 10 mm in diameter; spores 6 - 7 / 9 - 12 µm. Pycnidia well developed; conidia bifusiform, 0.5 / 6 - 8 µm (Hale 1986: 564).

Algae: Trebouxia.

Chemistry: Salazinic acid, usnic acid (Hale 1986: 564). Salazinic acid, more or less consalazinic acid, usnic acid (Hale 1990: 62).

Ecology: On rock.

Molecular data: Genbank

Distribution: Database

Note: