LIAS light – Item Descriptions
LIASlight ItemID: 6966
Xanthoria parietina (L.) Beltr.
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Africa (incl Madagascar) | Oceania – Australasia | Eurasia – Europe | Americas – North America (incl Mexico) | Americas – South and Central America | Arctic |
| substrate: | wood – dead, living | bark, cork, plant surface – trunks, branches, twigs | rock – calcareous, calciferous, basic | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | foliose (foliaceous), leaf-like |
| thallus: | continuous, diffuse, effuse |
| [th] upper surface: | grey(ish) | yellow(ish) (if dull: buff) | green(ish) grey | yellow(ish) grey | red(dish) yellow (orange, orange yellow) | yellow(ish) red (orange red) |
| [th upper surface]: | epruinose |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (min) 0.7 (low) 1.6(median) 2.9 (high) 3.2 (max) 6.0 |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane |
| [th] lower surface: | yellow(ish) (if dull: buff) |
| [th lower surface] specific structures: | present |
| [th lower surface] rhizines, rhizoid structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.7 (low) 0.82 (high) 4.5 (max) 8.0 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | yellow(ish) (if dull: buff) | red(dish) yellow (orange, orange yellow) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | yellow(ish) (if dull: buff) | red(dish) yellow (orange, orange yellow) |
| [ascm, if apoth] margin excipular photobionts: | present |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.5 (high) 3.0 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (low) 4.0 (high) 7.0 |
| [ascm] epihymenium, epithecium: | yellow(ish) (if dull: buff) | red(dish) yellow (orange, orange yellow) |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | present |
| [asc] tholus amyloidity pattern: | entirely amyloid (= Catillaria-, Teloschistes-types etc) |
| ascospores: | (median) 8.0 |
| [asp] shape: | ellipsoidal |
| [asp] length [µm]: | (min) 10.0 (low) 12.0 (high) 16.0 (max) 19.0 |
| [asp] width [µm]: | (min) 5.0 (low) 5.9(median) 7.9 (high) 8.7 (max) 10.0 |
| [asp] septa: | absent | present – spore lumen bilocular, polarilocular, plurilocular |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 1.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | broadly ellipsoidal | ellipsoidal |
| [co] length [µm]: | (min) 2.5 (low) 3.5 (high) 4.0 (max) 4.8 |
| secondary metabolites: | present |
| secondary metabolites: | emodin | fallacinal | parietin | parietinic acid | teloschistin |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |