Global occurrence: Eurasia – Europe | Arctic. Substrate: rock – calcareous, calciferous, basic. Life habit: lichenized (mutualistic with algal photobionts). Thallus: crustose (crustaceous) – episubstratal – unspecified; compartimentized – areolate, squamulate; [th] upper surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | green(ish) grey | brown(ish) grey; [th marginal and upper surface] specific structures: absent; [th] morphol substructures (eg areoles, lobes, branches) upper surface: bullate. Ascomata: absent | present; ascoma: apothecial, apothecioid – hymenial; ascoma [mm]: (median) 1.2; [ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | convex; [ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon); [ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (pale: orange brown). Asci: lecanoralean; [asc] tholus: thickened; [asc] tholus amyloidity (iodine reaction): present; [asc] tholus amyloidity pattern: amyloid with acuate axial body towards the apex (= Bacidia-, Buellia-, Ramalina-types etc). Ascospores: [asp] length [µm]: (min) 13.0 (low) 16.0 (high) 20.0 (max) 22.0; [asp] width [µm]: (low) 3.5 (high) 4.5; [asp] septa: present, transversely septate; [asp] transversal septa: (median) 3.0; [asp] pigmentation: hyaline, colourless; Primary photobiont: present, chlorophytaceous – trebouxiaceous, chlorococcoid; Secondary photobionts (eg in cephalodia): absent.