Global occurrence: Oceania – Australasia | Eurasia – Europe | Americas – South and Central America. Substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts. Life habit: lichenized (mutualistic with algal photobionts). Thallus: squamulose (squamulous); [th] upper surface: grey(ish) | green(ish) | green(ish) grey | brown(ish) yellow (ochraceous, ochre) | yellow(ish) brown; [th marginal and upper surface] specific structures: 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) 0.2 (high) 0.5. Ascomata: absent | present; ascoma: apothecial, apothecioid – hymenial; ascoma [mm]: (low) 1.0 (high) 3.0 (max) 5.0; [ascm, if apoth] disc, mazaedium: concave | plane, flat, flattened, expanded; [ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (if pale: orange brown); [ascm, if apoth] disc, mazaedium: epruinose; [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) 19.0 (high) 28.0 (max) 34.0; [asp] width [µm]: (low) 8.0 (high) 10.0 (max) 12.0; [asp] septa: absent – spore lumen unilocular, monolocular; [asp] pigmentation: hyaline, colourless; [asp] perispore, epispore: ornamented, rough, warted, striate, cracked. Conidiomata: absent | present. Conidia: cylindrical; [co] length [µm]: (low) 5.0 (high) 6.0. Secondary metabolites: absent. Primary photobiont: present, chlorophytaceous – trebouxiaceous, chlorococcoid. Secondary photobionts (eg in cephalodia): present.