LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 1271

Flavocetraria nivalis (L.) Kärnefelt & A. Thell

Characters[*]:Character States[*]:
global occurrence: Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) | Americas – South and Central America | Eurasia – Asia Tropical | Arctic
substrate: soil, clay, humus, turf, detritus, dead leaves
life habit: lichenized (mutualistic with algal photobionts)
thallus: foliose (foliaceous), leaf-like | fruticose (fruticous), shrub-like, beard-like
[th] upper surface: yellow(ish) (if dull: buff) | yellow(ish) green | red(dish) yellow (orange, orange yellow) | green(ish) white | 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) width [mm]: (low) 1.5 (high) 6.0
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | cracked, fissured, fractured, rimulose, subrimose | uneven, undulate
[th] morphol substructures (eg lobes, branches): dichotomous – unspecified
[th] lower surface: yellow(ish) (if dull: buff)
[th lower surface] specific structures: present
[th lower surface] rhizines, rhizoid structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
[ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[ascm, if apoth] disc, mazaedium: epruinose
[ascm] paraphyses/-oids: present
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] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
conidiomata: absent | present
conidia: bifusiform
[co] length [µm]: (low) 5.0 (high) 6.0
secondary metabolites: present
secondary metabolites: usnic 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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