LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 3672

Melanelia olivacea (L.) Essl.

Characters[*]:Character States[*]:
global occurrence: Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic
substrate: bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: foliose (foliaceous), leaf-like
thallus: continuous, diffuse, effuse
[th] upper surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | green(ish) brown (olive brown)
[th upper surface]: epruinose | pruinose
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (min) 1.0 (low) 2.0 (high) 6.0 (max) 8.0
[th] morphol substructures (eg areoles, squamules): distantly discontiguous
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | verrucose, warted | rugose, plicate, folded, pustulate, faveolate, wrinkled | pseudocyphellate, with pseudocyphellae
[th] lower surface: black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[th lower surface] specific structures: present
[th lower surface] rhizines, rhizoid structures: present
[th lower surface] rhizines, rhizinoid structures: unbranched, simple
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (min) 9.0
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless
[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 | ovoid, ovate
[asp] length [µm]: (low) 12.0 (high) 15.0 (max) 16.0
[asp] width [µm]: (low) 7.0 (high) 9.0
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
conidiomata: absent | present
conidia: bifusiform | acerose (needle-shaped)
[co] length [µm]: (low) 5.5 (high) 7.0 (max) 8.0
secondary metabolites: present
secondary metabolites: fumarprotocetraric acid | protocetraric 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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