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Miriquidica leucophaea (Florke ex Rabenh.) Hertel & Rambold (redirected from: Lecidea marylandensis)
Family: Lecideaceae
[Biatora leucophaea Flörke ex Rabenh.,  more]
Miriquidica leucophaea image
Life habit: lichenized (mutualistic with algal photobionts) thallus: crustose (crustaceous) – episubstratal – unspecified thallus: continuous, diffuse, effuse | compartimentized – areolate, squamulate [th] upper surface: grey(ish) | brown(ish) grey | white(ish) grey | white(ish) brown (beige) | grey(ish) white | brown(ish) white [th upper surface]: epruinose [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (min) 0.2 (low) 0.4 (high) 0.6 (max) 0.8 [th] morphol substructures (eg areoles, squamules): contiguous, coherent (throughout the thallus) | discontiguous, dispersed (throughout the thallus) [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | verrucose, warted | squamulose [th] medulla amyloidity: absent ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (min) 0.3 (low) 0.5 (high) 0.6 (max) 1.2 ascoma: immersed, innate | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial [ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex | convex [ascm, if apoth] disc, mazaedium: black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black | grey(ish) 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, 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]: (low) 1.8 (high) 2.0 [ascm] paraphyses/-oid apical cells width [µm]: (low) 4.5 (high) 5.0 [ascm] epihymenium, epithecium: green(ish) grey | 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 [asp] length [µm]: (min) 9.0 (low) 10.0 (high) 12.5 (max) 15.0 [asp] width [µm]: (low) 4.0 (high) 5.5 (max) 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) 17.0 (high) 21.0 secondary metabolites: present secondary metabolites: miriquidic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

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