LIAS light – Item Descriptions
LIASlight ItemID: 7242
Xanthoria karrooensis S. Y. Kondr. & Kärnefelt
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Africa (incl Madagascar) |
| substrate: | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | foliose (foliaceous), leaf-like |
| thallus: | continuous, diffuse, effuse |
| [th] upper surface: | grey(ish) | green(ish) | white(ish) | blue(ish) red (purple) | brown(ish) red (carneous) |
| [th upper surface]: | epruinose | 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) 1.0 (high) 1.5 (max) 3.0 |
| [th] morphol substructures (eg areoles, squamules): | contiguous, coherent (throughout the thallus) |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane | verrucose, warted |
| [th] lower surface: | yellow(ish) (if dull: buff) | grey(ish) white |
| [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]: | (min) 0.5 (low) 0.7 (high) 1.8 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | strongly concave, excavate, urceolate | concave | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | yellow(ish) red (orange red) |
| [ascm, if apoth] disc, mazaedium: | epruinose | pruinose |
| [ascm, if apoth] disc, mazaedium pruina: | scarce, sparse, fine | dense |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | grey(ish) | green(ish) | white(ish) | blue(ish) red (purple) | brown(ish) red (carneous) |
| [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]: | (median) 1.5 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (low) 4.0 (high) 5.0 |
| [ascm] epihymenium, epithecium: | yellow(ish) red (orange red) |
| 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) 11.0 (low) 12.0 (high) 13.0 |
| [asp] width [µm]: | (min) 4.0 (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: | broadly ellipsoidal | bacilliform, bacillar |
| [co] length [µm]: | (low) 2.5 (high) 3.0 |
| secondary metabolites: | present |
| secondary metabolites: | emodinal | emodinic acid | citreorosein |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |