LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 12042

Pyxine africana Kalb

Characters[*]:Character States[*]:
global occurrence: Africa (incl Madagascar)
substrate: bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: foliose (foliaceous), leaf-like
[th] upper surface: grey(ish) | brown(ish) grey | grey(ish) brown
[th upper surface]: epruinose | pruinose
[th upper surface] pruina: scarce, sparse, fine
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.8 (high) 1.2
[th] morphol substructures (eg areoles, lobes, branches) upper surface: pseudocyphellate, with pseudocyphellae
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.2 (high) 1.3
[ascm, if apoth] disc, mazaedium: epruinose
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: yellow(ish) red (orange red)
[ascm] paraphyses/-oids: present
asci: lecanoralean
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
[asc] tholus amyloidity pattern: amyloid with acuate axial body towards the apex (= Bacidia-, Buellia-, Ramalina-types etc)
ascospores: (median) 8.0
[asp] length [µm]: (low) 15.0(median) 16.3 (high) 19.0
[asp] width [µm]: (low) 5.0(median) 6.0 (high) 7.0
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (median) 1.0
[asp] pigmentation: medium brown, brownish
secondary metabolites: present
secondary metabolites: atranorin | connorstictic acid | norstictic acid | unknown/unidentified (tri-)terpenoid(s), (tri-)terpene(s) | unknown/unidentified pigment(s)
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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