Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed [th marginal and upper surface] specific structures: absent [th] medulla amyloidity: absent | present ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (min) 0.2 (low) 0.5 (high) 1.5 (max) 2.5 ascoma: sessile, superficial [ascm, if apoth] disc, mazaedium: convex [ascm, if apoth] disc, mazaedium: black(ish) [ascm, if apoth] disc, mazaedium: epruinose [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: green(ish) | 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 (= Collema-, Micarea-, Porpidia-, Psora-types etc) ascospores: (median) 8.0 [asp] shape: ellipsoidal [asp] length [µm]: (min) 11.0 (low) 13.0 (high) 28.0 (max) 33.5 [asp] width [µm]: (min) 5.5 (low) 7.0 (high) 14.0 (max) 20.0 [asp] septa: absent – spore lumen unilocular, monolocular conidiomata: absent | present conidia: bacilliform, bacillar [co] length [µm]: (low) 3.5 (high) 6.0 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.