Global occurrence: Eurasia – Europe | Americas – North America (incl Mexico) | Arctic. Substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified. Life habit: lichenized (mutualistic with algal photobionts). Thallus: foliose (foliaceous), leaf-like; [th] upper surface: grey(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | blue(ish) grey | grey(ish) brown; [th upper surface]: epruinose; [th marginal and upper surface] specific structures: absent | present; [th margin] cilia, cilioid structures: absent; [th upper surface] isidia, isidioid structures: absent; [th upper surface] soredia, soralia, soralioid structures: absent; [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 10.0 (high) 20.0; [th] morphol substructures (eg areoles, squamules): distantly discontiguous; [th] morphol substructures (eg areoles, lobes, branches) upper surface: hairy, pilose, setose, hirsute, tomentose, pubescent, felt-like; [th] morphol substructures (eg lobes, branches): irregular; [th] lower surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | yellow(ish) brown; [th lower surface] specific structures: present; [th lower surface] rhizines, rhizoid structures: present; [th lower surface] rhizines, rhizinoid structures: squarrosely branched, squarrose | fasciculate. Ascomata: absent | present; ascoma: apothecial, apothecioid – hymenial; ascoma [mm]: (low) 5.0 (high) 9.0; ascoma: sessile, superficial; [ascm, if apoth] disc, mazaedium: concave; [ascm, if apoth] disc, mazaedium: red(dish) brown (if pale: orange brown); [ascm, if apoth] disc, mazaedium: epruinose; [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: brown(ish) (if pale: fawn, tan; if mid: cinnamon); [ascm] paraphyses/-oids: present; [ascm] epihymenium, epithecium: red(dish) brown (pale: orange brown). 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: acicular (needle-shaped); [asp] length [µm]: (min) 40.0 (low) 44.0 (high) 59.0 (max) 73.0; [asp] width [µm]: (min) 2.6 (low) 3.0 (high) 4.0 (max) 5.2; [asp] septa: present, transversely septate; [asp] transversal septa: (median) 3.0; [asp] pigmentation: hyaline, colourless | pale brown; [asp] perispore, epispore: not apparent. Secondary metabolites: absent. Secondary photobionts (eg in cephalodia): absent. Primary photobiont: present, cyanobacterial.