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Mycobilimbia epixanthoides (Nyl.) Vitik., Ahti, Kuusinen, Lommi & T. Ulvinen
Family: Lecideaceae
[Bacidia epixanthoides (Nyl.) Lettau,  more]
Mycobilimbia epixanthoides image
Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified thallus: granular, granulose, granulate [th] upper surface: grey(ish) | green(ish) grey | yellow(ish) grey | grey(ish) green [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: present [th] morphol substructures (eg areoles, lobes, branches) upper surface: granulose, granular | verrucose, warted ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (low) 0.3 (high) 0.8 (max) 1.3 ascoma: sessile, superficial [ascm, if apoth] disc, mazaedium: subconvex, slightly convex | convex [ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black | yellow(ish) brown | red(dish) brown (if pale: orange brown) [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: brown(ish) (if pale: fawn, tan; if mid: cinnamon) [ascm] paraphyses/-oids: present [ascm] paraphyses/-oid cells width [µm]: (low) 1.5 (high) 2.0 [ascm] paraphyses/-oid apical cells width [µm]: (low) 3.0 (high) 5.0 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: fusiform [asp] length [µm]: (min) 13.0 (low) 17.0 (high) 25.0 (max) 30.0 [asp] width [µm]: (low) 4.5 (high) 7.0 [asp] septa: absent – spore lumen unilocular, monolocular | present [asp] septa: transversely septate [asp] transversal septa: (median) 3.0 (max) 5.0 [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent secondary metabolites: present secondary metabolites: argopsin primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: bryophytes – mosses, liverworts | bark, cork, plant surface – trunks, branches, twigs | rock, stones, pebbles – unspecified.