LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 6475

Usnea ceratina Ach.

Characters[*]:Character States[*]:
global occurrence: Africa (incl Madagascar) | Oceania – Australasia | Eurasia – Europe | Americas – North America (incl Mexico) | Americas – South and Central America
substrate: bark, cork, plant surface – trunks, branches, twigs | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified
life habit: lichenized (mutualistic with algal photobionts)
thallus: fruticose (fruticous), shrub-like, beard-like
thallus: continuous, diffuse, effuse
[th] upper surface: grey(ish) | green(ish) grey | grey(ish) green | yellow(ish) green
[th upper surface]: epruinose
[th marginal and upper surface] specific structures: present
[th margin] cilia, cilioid structures: absent
[th upper surface] isidia, isidioid structures: present
[th upper surface] soredia, soralia, soralioid structures: absent | present
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.5 (high) 1.0 (max) 2.0
[th] morphol substructures (eg areoles, squamules): distantly discontiguous
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | verrucose, warted | cracked, fissured, fractured, rimulose, subrimose | pseudocyphellate, with pseudocyphellae
[th] morphol substructures (eg lobes, branches): isotomic-dichotomous | anisotomic-dichotomous
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
[ascm, if apoth] disc, mazaedium: strongly concave, excavate, urceolate | plane, flat, flattened, expanded
[ascm, if apoth] disc, mazaedium: yellow(ish) (if dull: buff) | brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: grey(ish) | grey(ish) green | yellow(ish) green
[ascm, if apoth] margin excipular photobionts: present
[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] length [µm]: (low) 7.0 (high) 11.0
[asp] width [µm]: (low) 5.0 (high) 7.0
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
secondary metabolites: present
secondary metabolites: 2-O-methylsquamatic acid | 4-O-demethylbarbatic acid | baeomycesic acid | barbatic acid | diffractaic acid | obtusatic acid | squamatic acid | usnic acid | unknown/unidentified fatty acid(s) | unknown/unidentified pigment(s) | secalonic acid(s) – unspecified | 3-hydroxybarbatic 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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