LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 8874

Haematomma stevensiae R. W. Rogers

Characters[*]:Character States[*]:
global occurrence: Oceania – Australasia
substrate: bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate
[th] upper surface: white(ish) | green(ish) grey | yellow(ish) grey | yellow(ish) white (ivory, off-white, cream-coloured)
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) upper surface: rugulose, finely wrinkled
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 1.0 (high) 2.5
ascoma: sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked
[ascm, if apoth] disc, mazaedium: yellow(ish) red (orange red)
[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: fusiform
[asp] length [µm]: (low) 40.0 (high) 60.0
[asp] width [µm]: (low) 3.5 (high) 5.5
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (low) 7.0 (high) 9.0 (max) 11.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
secondary metabolites: present
secondary metabolites: atranorin | isosphaeric acid | sphaerophorin | russulone
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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