LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 3161

Lecidea lithophila (Ach.) Ach.

Characters[*]:Character States[*]:
global occurrence: Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) | Eurasia – Asia Tropical | Arctic
substrate: rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse
[th] upper surface: grey(ish) | red(dish)
[th upper surface]: epruinose
[th marginal and upper surface] specific structures: absent
[th] medulla amyloidity: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (median) 1.5 (max) 2.0
ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked | pedicellate, stipitate, pedunculate, stalked
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex | convex
[ascm, if apoth] disc, mazaedium: black(ish) | brown(ish) black | red(dish) brown (if pale: orange brown)
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: black(ish) | brown(ish) black | red(dish) brown (if pale: orange brown)
[ascm, if apoth] margin excipular photobionts: absent
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless
[ascm] paraphyses/-oids: present
[ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
asci: lecanoralean
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
[asc] tholus amyloidity pattern: with amyloid cap (= Icmadophila-, Lecidea-, Pertusaria-types etc)
ascospores: (median) 8.0
[asp] length [µm]: (min) 9.0 (low) 10.0 (high) 15.0
[asp] width [µm]: (min) 4.0 (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: 4-O-demethylplanaic 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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