LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 2803

Lecanora leptacina Sommerf.

Characters[*]:Character States[*]:
global occurrence: Eurasia – Europe | Americas – North America (incl Mexico) | Arctic
substrate: bryophytes – mosses, liverworts
life habit: lichenized (mutualistic with algal photobionts)
thallus: squamulose (squamulous)
[th] upper surface: yellow(ish) (if dull: buff) | yellow(ish) green
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (min) 0.4 (low) 1.0 (high) 1.5
ascoma: immersed, innate | sessile, superficial
[ascm, if apoth] disc, mazaedium: subconvex, slightly convex
[ascm, if apoth] disc, mazaedium: black(ish) | green(ish) black
[ascm, if apoth] disc, mazaedium: pruinose
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: yellow(ish) (if dull: buff) | yellow(ish) green
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (low) 1.5 (high) 2.0
[ascm] paraphyses/-oid apical cells width [µm]: (median) 4.5
[ascm] epihymenium, epithecium: yellow(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: ellipsoidal
[asp] length [µm]: (median) 13.0 (max) 15.0
[asp] width [µm]: (min) 4.5 (low) 6.0 (high) 9.0
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
secondary metabolites: present
secondary metabolites: 2'-O-demethylpsoromic acid | atranorin | psoromic acid
host organism:
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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