LIAS light – Item Descriptions
LIASlight ItemID: 7617
Acarospora strigata (Nyl.) Jatta
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Asia Extratropical | Americas – North America (incl Mexico) | Americas – South and Central America | Eurasia – Asia Tropical |
| substrate: | rock – siliceous, siliciferous, acidic | rock – calcareous, calciferous, basic |
| 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: | black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | white(ish) | blue(ish) grey |
| [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) 0.5 (high) 3.0 |
| [th] morphol substructures (eg areoles, squamules): | contiguous, coherent (throughout the thallus) |
| [th] lower surface: | white(ish) |
| [th lower surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 0.1 (high) 1.0 |
| ascoma: | subsessile, subimmersed, adnate, semi-immersed, emergent |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | black(ish) | red(dish) brown (if pale: orange brown) |
| [ascm, if apoth] disc, mazaedium: | epruinose | pruinose |
| [ascm, if apoth] disc, mazaedium pruina: | scarce, sparse, fine | dense |
| [ascm, if apoth] margin excipular photobionts: | present | sparse | abundant |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.0 (high) 2.0 (max) 2.5 |
| [ascm] epihymenium, epithecium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | absent |
| ascospores: | (median) 100.0 |
| [asp] shape: | globose, spherical | broadly ellipsoidal |
| [asp] length [µm]: | (min) 3.0 (low) 4.0 (high) 6.5 (max) 7.0 |
| [asp] width [µm]: | (min) 2.0 (low) 2.5 (high) 3.0 (max) 3.7 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |