LIAS light – Item Descriptions
LIASlight ItemID: 2905
Lecanora pseudomellea B. D. Ryan
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Americas – North America (incl Mexico) |
| substrate: | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | placodioid-crustose, placodioid-foliose |
| thallus: | compartimentized – areolate, squamulate |
| [th] upper surface: | yellow(ish) (if dull: buff) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | grey(ish) black | blue(ish) black | grey(ish) yellow | red(dish) yellow (orange, orange yellow) | green(ish) brown (olive brown) | yellow(ish) brown | red(dish) brown (if pale: orange brown) |
| [th upper surface]: | epruinose | pruinose |
| [th upper surface] pruina: | scarce, sparse, fine |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (low) 0.7 (high) 1.5 |
| [th] morphol substructures (eg areoles, squamules): | contiguous, coherent (throughout the thallus) | discontiguous, dispersed (towards thallus periphery) | distantly discontiguous |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane |
| [th] morphol substructures (eg lobes, branches): | subdichotomous |
| [th] lower surface: | blue(ish) black | green(ish) black |
| [th lower surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 0.4 (high) 1.0 |
| 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) | 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) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | grey(ish) black | blue(ish) black | grey(ish) yellow | red(dish) yellow (orange, orange yellow) | green(ish) brown (olive brown) | yellow(ish) brown | red(dish) brown (if pale: orange brown) |
| [ascm, if apoth] margin excipular photobionts: | present | abundant |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.0 (high) 2.0 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (low) 2.0 (high) 2.5 |
| [ascm] epihymenium, epithecium: | red(dish) brown (pale: orange brown) |
| 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: | ellipsoidal |
| [asp] length [µm]: | (low) 10.0 (high) 12.0 (max) 14.0 |
| [asp] width [µm]: | (min) 4.0 (low) 5.0 (high) 6.0 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | filiform, vermiform | [cur] – curved, unciform, falcate, sickle-shaped |
| [co] length [µm]: | (min) 10.0 (low) 20.0 (high) 25.0 (max) 30.0 |
| secondary metabolites: | present |
| secondary metabolites: | pannarin | protolichesterinic acid | psoromic acid | unknown/unidentified pigment(s) |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |