Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed [th] upper surface: grey(ish) | brown(ish) grey | blue(ish) brown (violet brown) [th marginal and upper surface] specific structures: absent ascomata: absent | present ascoma: perithecial, perithecioid – hymenial ascoma [mm]: (min) 0.2 (low) 0.32 (high) 0.38 (max) 0.4 ascoma: immersed, innate [ascm] paraphyses/-oids: absent asci: fissitunicate – verrucarialean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): absent ascospores: (min) 2.0(median) 4.0 (max) 5.0 [asp] length [µm]: (min) 30.0 (low) 44.0(median) 49.5 (high) 55.5 (max) 62.0 [asp] width [µm]: (min) 18.0 (low) 20.0(median) 22.6 (high) 27.5 (max) 27.5 [asp] septa: present [asp] septa: muriformly septate – muriform, submuriform [asp] transversal septa: (median) 12.0 [asp] pigmentation: dark brown secondary metabolites: absent primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

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