LIAS light – Item Descriptions
LIASlight ItemID: 5084
Psilolechia leprosa Coppins & Purvis
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Europe | Arctic | Antarctic – Southern Subpolar Islands, Subantarctic Islands |
| substrate: | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | leprose, leprarioid, powdery, byssoid | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | continuous, diffuse, effuse | cracked, fissured, fractured, rimose |
| [th] upper surface: | green(ish) | white(ish) | yellow(ish) grey | grey(ish) green | blue(ish) white | green(ish) white |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | granulose, granular | verrucose, warted |
| [th] medulla amyloidity: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 0.1 (high) 0.5 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | strongly convex, hemispherical, (sub-)globose |
| [ascm, if apoth] disc, mazaedium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) red (carneous) | red(dish) white (pink) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] margin excipular photobionts: | absent |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | yellow(ish) (if dull: buff) | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.3 (high) 2.0 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (min) 3.0 |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | present |
| [asc] tholus amyloidity pattern: | with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc) |
| ascospores: | (median) 8.0 |
| [asp] shape: | oval | ovoid, ovate |
| [asp] length [µm]: | (low) 4.5 (high) 6.5 (max) 9.0 |
| [asp] width [µm]: | (min) 1.3 (low) 1.5 (high) 2.0 (max) 3.5 |
| [asp] septa: | absent – spore lumen unilocular, monolocular | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 1.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| secondary metabolites: | present |
| secondary metabolites: | gyrophoric acid | lecanoric acid | porphyrilic acid | unknown/unidentified (tri-)terpenoid(s), (tri-)terpene(s) |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |