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Miriquidica griseoatra (Flotow) Hertel & Rambold
Family: Lecanoraceae
[Aspicilia inserena (Nyl.) Arnold,  more]
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life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – episubstratal – unspecified thallus: continuous, diffuse, effuse | compartimentized – areolate, squamulate [th] upper surface: grey(ish) | black(ish) grey | blue(ish) grey | brown(ish) grey | grey(ish) brown [th upper surface]: epruinose [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (median) 1.0 [th] morphol substructures (eg areoles, squamules): discontiguous, dispersed (throughout the thallus) [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | verrucose, warted | bullate | squamulose [th] medulla amyloidity: absent ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (low) 0.3 (high) 1.2 ascoma: sessile, superficial [ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex | convex [ascm, if apoth] disc, mazaedium: black(ish) [ascm, if apoth] disc, mazaedium: epruinose [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: black(ish) | grey(ish) [ascm, if apoth] margin excipular photobionts: absent [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless [ascm] paraphyses/-oids: present [ascm] paraphyses/-oid cells width [µm]: (median) 2.0 [ascm] paraphyses/-oid apical cells width [µm]: (low) 3.0 (high) 4.0 [ascm] epihymenium, epithecium: brown(ish) green (olivaceous, olive green) | green(ish) brown (olive brown) asci: lecanoralean [asc] tholus: thickened [asc] tholus amyloidity (iodine reaction): present [asc] tholus amyloidity pattern: amyloid with widening axial body towards the apex (= Lecanora-, Parmelia-, Rinodina-types etc) ascospores: (median) 8.0 [asp] shape: ellipsoidal | elongate-fusiform, ellipsoidal-fusiform | oblong, oblong-obtuse [asp] length [µm]: (min) 7.0 (low) 9.0 (high) 13.0 (max) 17.0 [asp] width [µm]: (min) 4.0 (low) 5.0 (high) 7.0 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent conidiomata: absent | present conidia: filiform, vermiform [co] length [µm]: (low) 20.0 (high) 27.0 secondary metabolites: present secondary metabolites: miriquidic acid | stictic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified.