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LIAS light – Item Descriptions
LIASlight ItemID: 12386
Tuckneraria ahtii Randlane & Saag
Characters[*]: | Character States[*]: |
---|---|
global occurrence: | Eurasia – Asia Extratropical |
substrate: | soil, clay, humus, turf, detritus, dead leaves | bark, cork, plant surface – trunks, branches, twigs |
life habit: | lichenized (mutualistic with algal photobionts) |
thallus: | foliose (foliaceous), leaf-like |
[th] upper surface: | yellow(ish) grey |
[th upper surface]: | epruinose |
[th marginal and upper surface] specific structures: | present |
[th margin] cilia, cilioid structures: | present |
[th upper surface] isidia, isidioid structures: | absent |
[th upper surface] soredia, soralia, soralioid structures: | absent |
[th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane |
[th] lower surface: | 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]: | (low) 2.0 (high) 5.0 (max) 8.0 |
ascoma: | sessile, superficial |
[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: | subglobose, subspherical |
[asp] length [µm]: | (low) 4.0 (high) 5.0 (max) 7.0 |
[asp] width [µm]: | (low) 2.5 (high) 3.5 (max) 5.0 |
[asp] septa: | absent – spore lumen unilocular, monolocular |
[asp] pigmentation: | hyaline, colourless |
[asp] perispore, epispore: | not apparent |
conidiomata: | absent | present |
conidia: | bifusiform |
secondary metabolites: | present |
secondary metabolites: | lichesterinic acid | usnic acid |
primary photobiont: | present |
secondary photobionts (eg in cephalodia): | absent |
primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |