LIAS light – Item Descriptions
LIASlight ItemID: 7994
Aspicilia praecrenata (Nyl.) Hue
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Americas – North America (incl Mexico) |
| substrate: | soil, clay, humus, turf, detritus, dead leaves | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – episubstratal – unspecified | squamulose (squamulous) |
| thallus: | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate |
| [th] upper surface: | yellow(ish) (if dull: buff) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) yellow (ochraceous, ochre) |
| [th upper surface]: | epruinose |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (min) 0.3 (low) 0.7 (high) 1.6 (max) 2.5 |
| [th] morphol substructures (eg areoles, squamules): | contiguous, coherent (throughout the thallus) | discontiguous, dispersed (throughout the thallus) |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | verruculose, minutely warted | verrucose, warted | subsquamulose | squamulose | uneven, undulate |
| [th] medulla amyloidity: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.1 (low) 0.3 (high) 0.9 (max) 1.3 |
| ascoma: | subsessile, subimmersed, adnate, semi-immersed, emergent |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | black(ish) | brown(ish) black |
| [ascm, if apoth] disc, mazaedium: | epruinose | pruinose |
| [ascm, if apoth] disc, mazaedium pruina: | scarce, sparse, fine |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) yellow (ochraceous, ochre) |
| [ascm, if apoth] margin excipular photobionts: | present | abundant |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless | hyaline yellow |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.0 (high) 1.5 (max) 2.0 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (low) 2.0 (high) 4.0 (max) 5.0 |
| [ascm] epihymenium, epithecium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | green(ish) brown (olive brown) |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | absent |
| [asc] tholus amyloidity pattern | |
| ascospores: | (min) 2.0 (low) 3.0 (high) 6.0 |
| [asp] shape: | globose, spherical | subglobose, subspherical |
| [asp] length [µm]: | (min) 16.0 (low) 18.0 (high) 23.0 (max) 27.0 |
| [asp] width [µm]: | (low) 15.0 (high) 21.0 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | filiform, vermiform |
| [co] length [µm]: | (low) 7.0 (high) 11.0 (max) 12.0 |
| secondary metabolites: | present |
| secondary metabolites: | aspicilin |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |