Life habit: lichenized (mutualistic with algal photobionts) thallus: squamulose (squamulous) thallus: compartimentized – areolate, squamulate [th] upper surface: green(ish) yellow | brown(ish) yellow (ochraceous, ochre) [th upper surface]: epruinose | pruinose [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (min) 4.0 [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | cracked, fissured, fractured, rimulose, subrimose [th] lower surface: white(ish) ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (min) 2.0 ascoma: sessile, superficial [ascm, if apoth] disc, mazaedium: black(ish) | brown(ish) black [ascm, if apoth] disc, mazaedium: epruinose | pruinose [ascm] paraphyses/-oids: present asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc) ascospores: (median) 8.0 [asp] shape: ellipsoidal [asp] length [µm]: (low) 9.0 (high) 14.0 [asp] width [µm]: (low) 5.0 (high) 7.0 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent conidiomata: absent | present conidia: bacilliform, bacillar [co] length [µm]: (low) 5.0 (high) 7.0 secondary metabolites: present secondary metabolites: gyrophoric acid | usnic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: rock – calcareous, calciferous, basic | rock, stones, pebbles – unspecified.