Type locality coordinates: Data lacking.

ITS barcode: Data lacking.

Description: Lichen. Thallus foliose, to 8 cm diam., adnate, usually forming rosettes; lobes 1-3 mm wide; upper surface grey in the centre, becoming brownish towards the edges, short pustulate isidia on laminal papillae developing into soralia common in the central parts; lower surface black, brownish towards the periphery, glossy, sometimes perforate near the lobe tips. Apothecia rare, sessile, to 6 mm diam.; disc dark reddish brown. Spores broadly ellipsoid, 6.5- 7.5 x 4.5- 5 μm. Pycnidi not observed.

Photobiont: Data lacking.

Chemistry: Cortex C—, K+ yellow, KC—, PD—; atranorin. Medulla C—, K—, KC+ red, PD—; 3-hydroxyphysodic, 2’-O-methylphysodic and physodic acids and an unknown substance.

Ecology: Coxticolous, on acidic bark, e.g., Picea, Pinus and Betula, or saxicolous on soft calcareous or siliceous rocks in subalpine-alpine areas. Above the tree limit found on soft calcareous rocks or on the ground in calcareous heaths.

Distribution type: "Restricted to the Scandinavian mountains, Iceland and Svalbard. Circmnpolar boreal- alpine in the Northern Hemisphere" (Westberg, Ahti & Thell,Nordic Lichen Flora 4: 139, 2011). Data lacking.

Taxonomy: Data lacking.

Note: Syn. Hypogymnia obscurata (Ach.) Räsänen, non sensu Räsänen et auct., Parmelia obscurata var. isidiata (Lynge) H.Magn., Parmelia obscurata (Ach.) Bitter (non sensu Bitter).

Distribution Database: Distributions

Distribution Database: Discover Life

Picture Database: Tropical Lichens

Molecular Database: Genbank

Synonym Database: Index Fungorum

Synonym Database: Mycobank