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Melanelia stygia (L.) Essl.   (redirigido desde: Parmelia stygia (L.) Ach.)
Familia: Parmeliaceae
[Cetraria stygia (L.) Schaer., moreCornicularia stygia (L.) Nyl., Imbricaria stygia (L.) DC., Imbricaria stygia f. conturbata Arnold, Imbricaria stygia f. stygia (L.) DC., Lichen stygius L., Lobaria stygia (L.) Hoffm., Parmelia stygia (L.) Ach., Parmelia stygia f. lignicola Kosk.{?}, Parmelia stygia f. stygia (L.) Ach., Parmelia stygia var. elveloidea Schaer., Parmelia stygia var. orbicularis Schaer., Parmelia stygia var. pulvinata Schaer., Parmelia stygia var. reagens Servít, Parmelia stygia var. septentrionalis Lynge, Parmelia stygia var. stygia (L.) Ach., Squamaria stygia (L.) Hoffm.]
Melanelia stygia image
Stephen Sharnoff
  • LIAS
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Botanische Staatssammlung München
Life habit: lichenized (mutualistic with algal photobionts) thallus: foliose (foliaceous), leaf-like thallus: continuous, diffuse, effuse [th] upper surface: black(ish) | black(ish) brown | grey(ish) brown | green(ish) brown (olive brown) [th upper surface]: epruinose | pruinose [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) width [mm]: (min) 0.2 (low) 0.5 (high) 1.5 (max) 3.0 [th] morphol substructures (eg areoles, squamules): distantly discontiguous [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | rugose, plicate, folded, pustulate, faveolate, wrinkled [th] morphol substructures (eg lobes, branches): subdichotomous | irregular [th] lower surface: black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) [th lower surface] specific structures: present [th lower surface] rhizines, rhizoid structures: present [th lower surface] rhizines, rhizinoid structures: unbranched, simple ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (low) 1.0 (high) 2.5 ascoma: sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked [ascm, if apoth] disc, mazaedium: concave | plane, flat, flattened, expanded [ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) [ascm, if apoth] disc, mazaedium: epruinose [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: black(ish) | black(ish) brown | grey(ish) brown | green(ish) brown (olive brown) [ascm, if apoth] margin excipular photobionts: present | abundant [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless [ascm] paraphyses/-oids: present [ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) 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 | ovoid, ovate [asp] length [µm]: (low) 9.0 (high) 11.0 [asp] width [µm]: (low) 4.5 (high) 6.0 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent secondary metabolites: present secondary metabolites: perlatolic acid | stenosporic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: bark, cork, plant surface – trunks, branches, twigs | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified.
Melanelia stygia
Abrir Mapa Interactivo
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Lucy Taylor
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Lucy Taylor
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Lucy Taylor
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Stephen Sharnoff
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Linda Phillips
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