LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 3995

Ochrolechia laevigata (Räsänen) Verseghy & Brodo

Characters[*]:Character States[*]:
global occurrence: Americas – North America (incl Mexico)
substrate: wood – dead, living
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse | cracked, fissured, fractured, rimose
[th] upper surface: yellow(ish) white (ivory, off-white, cream-coloured)
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 1.2 (high) 3.0 (max) 4.5
ascoma: sessile, superficial
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded
[ascm, if apoth] disc, mazaedium: yellow(ish) red (orange red) | red(dish) white (pink)
[ascm, if apoth] disc, mazaedium: epruinose
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: yellow(ish) white (ivory, off-white, cream-coloured) | red(dish) white (pink)
[ascm, if apoth] margin excipular photobionts: absent | sparse
[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: with amyloid cap (= Icmadophila-, Lecidea-, Pertusaria-types etc)
ascospores: (low) 6.0 (high) 8.0
[asp] shape: ellipsoidal
[asp] length [µm]: (low) 34.0 (high) 52.0
[asp] width [µm]: (low) 20.0 (high) 26.0
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
secondary metabolites: present
secondary metabolites: 4-O-demethylmicrophyllinic acid | gyrophoric acid | lecanoric acid | olivetoric acid
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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