LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 14986

Physcia tropica Elix

Characters[*]:Character States[*]:
global occurrence: Oceania – Australasia
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) | yellow(ish) white (ivory, off-white, cream-coloured)
[th upper surface]: pruinose
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.5 (high) 1.2
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | bullate | maculate | rugulose, finely wrinkled
[th] lower surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | yellow(ish) white (ivory, off-white, cream-coloured)
[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]: (low) 0.5 (high) 1.5
ascoma: sessile, superficial
[ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black
[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] length [µm]: (low) 17.0 (high) 30.0
[asp] width [µm]: (low) 7.0 (high) 12.0
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (median) 1.0
[asp] pigmentation: medium brown, brownish
conidiomata: absent | present
conidia: bacilliform, bacillar
[co] length [µm]: (low) 4.0 (high) 5.0
secondary metabolites: present
secondary metabolites: 16β-acetoxyhopane-6α,22-diol | 6α-acetoxy-22-hydroxyhopane-25-oic acid (aipolic acid) | 6α-acetoxyhopane-16β,22-diol | atranorin | zeorin (hopane-6α,22-diol) | 6α-acetoxy-16β,22-dihydroxyhopane-25-oic 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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