Phytologia 28: 488 (1974).

Basionym: Parmelia mougeotii Schaer., in Dietrich, Deutschl. Kryptog. Gewächse, 4 Abth.: 118 (1846).

Synonyms: Index Fungorum

Type: France, Vosges, Mt. Heledre, near Bruyéres [Brujerium], Mougeot s.n., Schaerer: Lichenes Helvetici Exsiccati 548 (UPS - neotype; BM, FH-Tuck, WU - isoneotypes). Thallus: crustose, very tightly adnate to tightly adnate, usually appearing areolate at the center, 2-4. cm broad, dark yellowish green, sometimes turning a distinct brown; lobes sublinear, 0,2-0,5 mm wide, contiguous to subimbricate and crowded, brown rimmed at the tips; upper surface continuous, emaculate, shiny, rugulose, transversely chracked with age, moderately sorediate, the soralia orbicular, capitate, 0,5-1mm in diameter; medulla white; lower surface plane, black, shiny, sparsely to moderately rhizinate, the rhizines dark brown to black, simple, 0,1-0,2 mm long. Pycnidia rare; conidia bifusiform, 0,5 x 5-6 µm. Apothecia very rare, adnate, 1-1,5 mm in diameter; spores 5-6 x 8-10 µm.

Chemistry: Stictic acid, constictic acid, norstictic acid and usnic acid.

Ecology: On rock, rarely on bark.

Molecular data:

Distribution: Ecuador, Peru, Brazil, Argentina,

Photobiont: Trebouxia.

Chemistry:

Ecology:

Molecular data: Genbank

Distribution: Database

Note: