LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 9220

Lecanora mayrhoferi Lumbsch

Characters[*]:Character States[*]:
global occurrence: Oceania – Australasia
substrate: rock – siliceous, siliciferous, acidic
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse
[th] upper surface: yellow(ish) grey | white(ish) grey | yellow(ish) white (ivory, off-white, cream-coloured)
[th upper surface]: epruinose
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) upper surface: verruculose, minutely warted | verrucose, warted | bullate
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.5 (high) 2.0
ascoma: sessile, superficial
[ascm, if apoth] disc, mazaedium: black(ish) brown
[ascm, if apoth] disc, mazaedium: epruinose | pruinose
[ascm, if apoth] disc, mazaedium pruina: scarce, sparse, fine
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless
[ascm] paraphyses/-oids: present
[ascm] epihymenium, epithecium: green(ish) brown (olive 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: ellipsoidal
[asp] length [µm]: (low) 11.0 (high) 14.5
[asp] width [µm]: (low) 4.5 (high) 6.5
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
secondary metabolites: present
secondary metabolites: 2,5,7-trichloro-3-O-methylnorlichexanthone | 2,5,7-trichlorolichexanthone | 2,7-dichlorolichexanthone | 3-O-methylasemone | 5,7-dichloro-3-O-methylnorlichexanthone | 5,7-dichloronorlichexanthone | arthothelin | 4,5,7-trichloronorlichexanthone (asemone) | atranorin | chloroatranorin | isoarthothelin
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.


© 2001–2022 by Botanische Staatssammlung M√ľnchen
Impressum · Disclaimer · Webmaster