LIAS light – Item Descriptions
LIASlight ItemID: 6312
Tuckermannopsis americana (Spreng.) Hale
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Asia Extratropical | Americas – North America (incl Mexico) | Arctic |
| substrate: | wood – dead, living | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | subfruticose (subfruticous), fruticulose, dactyliform | fruticose (fruticous), shrub-like, beard-like |
| [th] upper surface: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | green(ish) grey | grey(ish) brown | green(ish) brown (olive brown) |
| [th upper surface]: | epruinose |
| [th marginal and upper surface] specific structures: | present |
| [th margin] cilia, cilioid structures: | present |
| [th upper surface] isidia, isidioid structures: | absent |
| [th upper surface] soredia, soralia, soralioid structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (low) 1.0 (high) 2.5 (max) 4.0 |
| [th] morphol substructures (eg areoles, squamules): | distantly discontiguous |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | rugose, plicate, folded, pustulate, faveolate, wrinkled | pseudocyphellate, with pseudocyphellae |
| [th] lower surface: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) |
| [th lower surface] specific structures: | present |
| [th lower surface] rhizines, rhizoid structures: | present |
| [th lower surface] rhizines, rhizinoid structures: | unbranched, simple |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 1.0 (high) 7.0 |
| ascoma: | sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | red(dish) brown (if pale: orange brown) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | grey(ish) brown | green(ish) brown (olive brown) |
| [ascm, if apoth] margin excipular photobionts: | present | abundant |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] epihymenium, epithecium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) |
| 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: | globose, spherical | subglobose, subspherical |
| [asp] length [µm]: | (low) 4.0 (high) 5.0 |
| [asp] width [µm]: | (low) 4.0 (high) 5.0 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | citriform |
| [co] length [µm]: | (low) 5.0 (high) 7.0 |
| secondary metabolites: | present |
| secondary metabolites: | alectoronic acid | atranorin |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |