LIAS light – Item Descriptions
LIASlight ItemID: 14257
Xanthoria concinna J. W. Thomson & T. H. Nash
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Americas – North America (incl Mexico) |
| substrate: | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | foliose (foliaceous), leaf-like | subfruticose (subfruticous), fruticulose, dactyliform |
| thallus: | continuous, diffuse, effuse |
| [th] upper surface: | grey(ish) | yellow(ish) (if dull: buff) | white(ish) grey | grey(ish) white |
| [th upper surface]: | pruinose |
| [th upper surface] pruina: | scarce, sparse, fine | dense |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (low) 0.3 (high) 0.5 |
| [th] morphol substructures (eg areoles, squamules): | distantly discontiguous |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane |
| [th] lower surface: | white(ish) |
| [th lower surface] specific structures: | absent | present |
| [th lower surface] rhizines, rhizoid structures: | absent | present |
| [th lower surface] rhizines, rhizinoid structures: | unbranched, simple |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 1.0 (high) 2.0 (max) 3.0 |
| ascoma: | sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked |
| [ascm, if apoth] disc, mazaedium: | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | red(dish) yellow (orange, orange yellow) | yellow(ish) red (orange red) |
| [ascm, if apoth] disc, mazaedium: | pruinose |
| [ascm, if apoth] disc, mazaedium pruina: | scarce, sparse, fine |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | yellow(ish) (if dull: buff) | red(dish) yellow (orange, orange yellow) | yellow(ish) red (orange red) |
| [ascm, if apoth] margin excipular photobionts: | present | abundant |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (median) 2.0 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (median) 5.0 |
| [ascm] epihymenium, epithecium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) |
| 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 | narrowly ellipsoidal |
| [asp] length [µm]: | (low) 13.0 (high) 15.0 |
| [asp] width [µm]: | (low) 5.0 (high) 6.0 |
| [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: | bacilliform, bacillar |
| [co] length [µm]: | (min) 3.0 (low) 3.5 (high) 4.0 |
| 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 |