Global occurrence: Eurasia – Europe. Substrate: lichens, lichenized fungi | rock – siliceous, siliciferous, acidic. Life habit: lichenized (mutualistic with algal photobionts) | lichenicolous (in/on lichens). Thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified; thallus: continuous, diffuse, effuse | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate; [th] upper surface: white(ish); [th marginal and upper surface] specific structures: absent; th] morphol substructures (eg areoles, lobes, branches) upper surface: verrucose, warted. Ascomata: absent | present; ascoma: apothecial, apothecioid – hymenial; [ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | convex; [ascm, if apoth] disc, mazaedium: epruinose | pruinose. 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: (median) 8.0; [asp] length [µm]: (low) 16.0 (high) 26.0; [asp] width [µm]: (low) 6.0 (high) 11.0; [asp] septa: present; [asp] septa: muriformly septate – muriform, submuriform. Primary photobiont: absent.