LIAS light – Item Descriptions
LIASlight ItemID: 596
Biatora helvola Körb. ex Hellb.
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic |
| substrate: | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate |
| [th] upper surface: | grey(ish) | green(ish) grey | white(ish) grey | grey(ish) green |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (low) 0.1 (high) 0.3 |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane | verrucose, warted |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 0.3 (high) 0.5 (max) 0.8 |
| ascoma: | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | subconvex, slightly convex | convex | distinctly convex |
| [ascm, if apoth] disc, mazaedium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | yellow(ish) brown | red(dish) brown (if pale: orange brown) | white(ish) brown (beige) | yellow(ish) white (ivory, off-white, cream-coloured) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | yellow(ish) (if dull: buff) | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] epihymenium, epithecium: | hyaline, colourless |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | present |
| [asc] tholus amyloidity pattern: | amyloid with acuate axial body towards the apex (= Bacidia-, Buellia-, Ramalina-types etc) |
| ascospores: | (median) 8.0 |
| [asp] shape: | narrowly ellipsoidal |
| [asp] length [µm]: | (min) 8.5 (low) 10.2 (high) 14.2 (max) 17.5 |
| [asp] width [µm]: | (min) 3.0 (low) 3.4 (high) 4.5 (max) 5.0 |
| [asp] septa: | absent – spore lumen unilocular, monolocular | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 0.0 (max) 1.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| secondary metabolites: | present |
| secondary metabolites: | gyrophoric acid | lecanoric acid |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |