Global occurrence: Eurasia – Europe | Arctic.  Substrate: soil, clay, humus, turf, detritus, dead leaves | bark, cork, plant surface – trunks, branches, twigs | rock, stones, pebbles – unspecified.  Life habit: lichenized (mutualistic with algal photobionts).  Thallus: foliose (foliaceous), leaf-like; continuous, diffuse, effuse; [th] upper surface: green(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon); [th upper surface]: epruinose; [th marginal and upper surface] specific structures: absent; [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.3 (high) 2.5; [th] morphol substructures (eg areoles, squamules): contiguous, coherent (throughout the thallus); [th] morphol substructures (eg lobes, branches): irregular; [th] lower surface: brown(ish) black; [th lower surface] specific structures: present; [th lower surface] rhizines, rhizoid structures: present; [th lower surface] rhizines, rhizinoid structures: unbranched, simple.  Ascomata: absent | present; ascoma: apothecial, apothecioid – hymenial; ascoma [mm]: (low) 1.0 (high) 3.0; ascoma: pedicellate, stipitate, pedunculate, stalked; [ascm, if apoth] disc, mazaedium: black(ish) brown; [ascm, if apoth] disc, mazaedium: epruinose; [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: green(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon); [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless | yellow(ish) brown; [ascm] paraphyses/-oids: present; [ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon).  Asci: lecanoralean; [asc] tholus: thickened; [asc] tholus amyloidity (iodine reaction): present; [asc] tholus amyloidity pattern: amyloid with widening axial body towards the apex (= Lecanora-, Parmelia-, Rinodina-types etc).  Ascospores: (median) 8.0; [asp] shape: ellipsoidal; [asp] length [µm]: (low) 15.0 (high) 18.0; [asp] width [µm]: (low) 30.0 (high) 36.0; [asp] septa: present, transversely septate; [asp] transversal septa: (median) 1.0;[asp] pigmentation: dark brown; [asp] perispore, epispore: ornamented, rough, warted, striate, cracked.  Conidiomata: absent | present.  Conidia: bacilliform, bacillary.  Secondary metabolites: present, atranorin | zeorin (hopane-6α,22-diol).  Primary photobiont: present, chlorophytaceous – trebouxiaceous, chlorococcoid.  Secondary photobionts (eg in cephalodia): absent.