LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 6489

Usnea densirostra Taylor

Characters[*]:Character States[*]:
global occurrence: Africa (incl Madagascar) | Americas – South and Central America
substrate: 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]: epruinose
[th marginal and upper surface] specific structures: absent | present
[th margin] cilia, cilioid structures: absent
[th upper surface] isidia, isidioid structures: absent
[th upper surface] soredia, soralia, soralioid structures: absent
[th] morphol substructures (eg areoles, lobes, branches) upper surface: bullate | cracked, fissured, fractured, rimulose, subrimose
[th] morphol substructures (eg lobes, branches): isotomic-dichotomous | anisotomic-dichotomous
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (min) 15.0
[ascm, if apoth] disc, mazaedium: concave | plane, flat, flattened, expanded
[ascm, if apoth] disc, mazaedium: yellow(ish) (if dull: buff)
[ascm, if apoth] disc, mazaedium: epruinose | pruinose
[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] length [µm]: (min) 6.4 (low) 7.0(median) 7.8 (high) 8.6 (max) 11.2
[asp] width [µm]: (min) 3.2 (low) 3.8(median) 4.6 (high) 5.4 (max) 7.5
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
conidiomata: absent | present
conidia: sublageniform
[co] length [µm]: (median) 7.3
secondary metabolites: present
secondary metabolites: fumarprotocetraric acid | protocetraric acid | salazinic acid | 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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