LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 7391

Lecanora ryanii T. H. Nash & Lumbsch

Characters[*]:Character States[*]:
global occurrence: Americas – North America (incl Mexico)
substrate: rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate
[th] upper surface: red(dish) grey | white(ish) grey | white(ish) yellow
[th upper surface]: epruinose
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, squamules): discontiguous, dispersed (throughout the thallus)
[th] morphol substructures (eg areoles, lobes, branches) upper surface: verruculose, minutely warted | verrucose, warted
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.4 (high) 1.2
ascoma: sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded
[ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | black(ish) brown
[ascm, if apoth] disc, mazaedium: epruinose
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: red(dish) grey | white(ish) grey | white(ish) yellow
[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] paraphyses/-oid cells width [µm]: (low) 1.0 (high) 1.5
[ascm] paraphyses/-oid apical cells width [µm]: (low) 1.5 (high) 3.0
[ascm] epihymenium, epithecium: green(ish) black | black(ish) 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: broadly ellipsoidal
[asp] length [µm]: (low) 8.5 (high) 12.5
[asp] width [µm]: (low) 5.0 (high) 6.5
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
secondary metabolites: present
secondary metabolites: 2,4-dichloronorlichexanthone | 2,5-dichlorolichexanthone | 4,5-dichlorolichexanthone (coronatone) | arthothelin | atranorin | chloroatranorin | thiophanic 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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