Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – episubstratal – unspecified thallus: granular, granulose, granulate | compartimentized – areolate, squamulate [th] upper surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | black(ish) brown | red(dish) brown (if pale: orange brown) [th upper surface]: epruinose [th marginal and upper surface] specific structures: present [th margin] cilia, cilioid structures: absent [th upper surface] isidia, isidioid structures: absent | present [th upper surface] soredia, soralia, soralioid structures: absent | present [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.4 (high) 0.5 [th] morphol substructures (eg areoles, lobes, branches) upper surface: granulose, granular [th] medulla amyloidity: absent ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (low) 0.3 (high) 0.9 (max) 1.2 ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent [ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex [ascm, if apoth] disc, mazaedium: black(ish) [ascm, if apoth] disc, mazaedium: epruinose [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: black(ish) [ascm, if apoth] margin excipular photobionts: absent [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: brown(ish) (if pale: fawn, tan; if mid: cinnamon) [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: with amyloid tube and flanks (= Rimularia-, Trapelia-types etc) ascospores: (median) 8.0 [asp] shape: ellipsoidal [asp] length [µm]: (low) 10.0 (high) 16.0 (max) 20.0 [asp] width [µm]: (low) 5.0 (high) 8.0 (max) 10.0 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless | pale brown [asp] perispore, epispore: not apparent secondary metabolites: present secondary metabolites: gyrophoric acid | norstictic acid | stictic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: lichens, lichenized fungi | rock – siliceous, siliciferous, acidic | rock – calcareous, calciferous, basic | rock, stones, pebbles – unspecified.