LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 2323

Heterodermia sitchensis Goward & Noble

Characters[*]:Character States[*]:
global occurrence: Americas – North America (incl Mexico)
substrate: bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: foliose (foliaceous), leaf-like
[th] upper surface: blue(ish) black | green(ish) white
[th upper surface]: epruinose
[th marginal and upper surface] specific structures: present
[th margin] cilia, cilioid structures: present
[th upper surface] isidia, isidioid structures: absent
[th upper surface] soredia, soralia, soralioid structures: present
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.5 (high) 2.0
[th] morphol substructures (eg areoles, squamules): distantly discontiguous
[th] morphol substructures (eg lobes, branches): subdichotomous | irregular
[th] lower surface: white(ish)
[th lower surface] specific structures: absent | present
[th lower surface] rhizines, rhizoid structures: present
[th lower surface] rhizines, rhizinoid structures: irregularly branched, irregular
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.5 (high) 1.2
ascoma: subpedicellate, substipitate, subpedunculate, substalked
[ascm, if apoth] disc, mazaedium: concave
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: blue(ish) black | green(ish) white
[ascm, if apoth] margin excipular photobionts: present | abundant
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[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] pigmentation: medium brown, brownish | dark brown
secondary metabolites: present
secondary metabolites: atranorin | chloroatranorin | zeorin (hopane-6α,22-diol) | unknown/unidentified fatty acid(s)
primary photobiont: present
secondary photobionts (eg in cephalodia): absent
primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid

[*] Not all (synonymous, equivalent or similar) terms being provided in parallel for a character or character state (e.g. 'endosubstratal, inconspicuous, immersed') need to be valid for the taxon under concern.


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