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Parmelia omphalodes (L.) Ach.  
Family: Parmeliaceae
[Imbricaria omphalodes (L.) Jatta,  more]
Parmelia omphalodes image
Stephen Sharnoff  
Life habit: lichenized (mutualistic with algal photobionts) thallus: foliose (foliaceous), leaf-like thallus: continuous, diffuse, effuse [th] upper surface: black(ish) | grey(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black | blue(ish) grey | brown(ish) grey | white(ish) grey [th marginal and upper surface] specific structures: absent [th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 1.0 (high) 4.0 [th] morphol substructures (eg areoles, squamules): contiguous, coherent (throughout the thallus) [th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | cracked, fissured, fractured, rimulose, subrimose | pseudocyphellate, with pseudocyphellae [th] morphol substructures (eg lobes, branches): irregular [th] lower surface: black(ish) [th lower surface] specific structures: present [th lower surface] rhizines, rhizoid structures: present [th lower surface] rhizines, rhizinoid structures: unbranched, simple | furcately branched, furcate, forked ascomata: absent | present ascoma: apothecial, apothecioid – hymenial ascoma [mm]: (low) 3.0 (high) 12.0 ascoma: sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked [ascm, if apoth] disc, mazaedium: strongly concave, excavate, urceolate | concave [ascm, if apoth] disc, mazaedium: red(dish) brown (if pale: orange brown) [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: grey(ish) | brown(ish) black | brown(ish) grey [ascm, if apoth] margin excipular photobionts: present [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless [ascm] paraphyses/-oids: present 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]: (low) 10.0 (high) 15.0 [asp] width [µm]: (low) 7.0 (high) 9.0 [asp] septa: absent – spore lumen unilocular, monolocular [asp] pigmentation: hyaline, colourless [asp] perispore, epispore: not apparent conidiomata: absent | present conidia: bacilliform, bacillar [co] length [µm]: (low) 5.5 (high) 6.5 secondary metabolites: present secondary metabolites: atranorin | chloroatranorin | consalazinic acid | lobaric acid | protolichesterinic acid | salazinic acid primary photobiont: present secondary photobionts (eg in cephalodia): absent primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid.

substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | bark, cork, plant surface – trunks, branches, twigs | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified.
Parmelia omphalodes image
Lucy Taylor  
Parmelia omphalodes image
Parmelia omphalodes image
Stephen Sharnoff  
Parmelia omphalodes image
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