LIAS light – Item Descriptions
LIASlight ItemID: 15160
Myrionora albidula (Willey) R. C. Harris
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) |
| substrate: | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | continuous, diffuse, effuse | granular, granulose, granulate |
| [th] upper surface: | grey(ish) | white(ish) grey |
| [th upper surface]: | epruinose |
| [th marginal and upper surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.11 (low) 0.18(median) 0.21 (high) 0.27 (max) 0.5 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | plane, flat, flattened, expanded | subconvex, slightly convex | convex |
| [ascm, if apoth] disc, mazaedium: | yellow(ish) (if dull: buff) | white(ish) | blue(ish) grey |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | grey(ish) | yellow(ish) (if dull: buff) | white(ish) | blue(ish) grey |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (min) 1.2 (low) 1.7(median) 1.9 (high) 2.1 (max) 2.7 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (min) 1.6 (low) 2.2(median) 2.6 (high) 3.0 (max) 5.0 |
| [ascm] epihymenium, epithecium: | blue(ish) green (turquoise) |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | present |
| [asc] tholus amyloidity pattern: | amyloid with acuate axial body towards the apex (= Bacidia-, Buellia-, Ramalina-types etc) |
| ascospores: | (min) 32.0 (low) 50.0 (high) 75.0 |
| [asp] shape: | narrowly ellipsoidal | bacilliform, bacillar |
| [asp] length [µm]: | (min) 4.7 (low) 6.0(median) 6.6 (high) 7.6 (max) 11.3 |
| [asp] width [µm]: | (min) 1.6 (low) 2.0(median) 2.2 (high) 2.3 (max) 3.3 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | broadly ellipsoidal | ellipsoidal |
| [co] length [µm]: | (low) 2.5 (high) 4.0 (max) 4.5 |
| secondary metabolites: | present |
| secondary metabolites: | lobaric acid |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |