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Thelocarpon epibolum Nyl.
Family: Thelocarpaceae
Thelocarpon epibolum image
Life habit: saprobic (on decaying organic substrate) | lichenized (mutualistic with algal photobionts) | lichenicolous (in/on lichens) | bryophilous (parasitic on mosses and hepatics) thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.1 (high) 0.16 ascomata: absent | present ascoma: apothecial, apothecioid – hymenial | perithecial, perithecioid – hymenial ascoma [mm]: (low) 0.1 (high) 0.17 (max) 0.2 ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent [ascm, if apoth] disc, mazaedium: yellow(ish) (if dull: buff) [ascm, if apoth] disc, mazaedium: pruinose [ascm, if apoth] disc, mazaedium pruina: scarce, sparse, fine | dense [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: green(ish) | yellow(ish) green [ascm, if apoth] margin excipular photobionts: absent [ascm] paraphyses/-oids: present asci: unitunicate [asc] tholus: not thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc) | with amyloid cap (= Icmadophila-, Lecidea-, Pertusaria-types etc) ascospores: (low) 50.0 (high) 200.0 [asp] shape: oblong, oblong-obtuse [asp] length [µm]: (min) 4.0 (low) 5.0 (high) 6.0 (max) 7.5 [asp] width [µm]: (min) 1.7 (low) 2.0 (high) 2.5 (max) 3.5 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent conidiomata: absent | present [co] length [µm]: (low) 4.0 (high) 7.0 secondary metabolites: present secondary metabolites: pulvinic acid host organism: primary photobiont: absent | present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | lichens, lichenized fungi | wood – dead, living.