LIAS light – Item Descriptions
LIASlight ItemID: 13101
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Americas – North America (incl Mexico) | Americas – South and Central America |
| substrate: | leaves, fronds, needles – living |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | filamentose (filamentous), pannose |
| [th] upper surface: | green(ish) | brown(ish) green (olivaceous, olive green) |
| [th upper surface]: | epruinose |
| [th marginal and upper surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 0.2 (high) 0.4 |
| ascoma: | sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked |
| [ascm, if apoth] disc, mazaedium: | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | red(dish) yellow (orange, orange yellow) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | yellow(ish) white (ivory, off-white, cream-coloured) |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| asci: | unitunicate |
| [asc] tholus: | not thickened |
| [asc] tholus amyloidity (iodine reaction): | absent |
| ascospores: | (median) 8.0 |
| [asp] shape: | fusiform |
| [asp] length [µm]: | (low) 9.0 (high) 12.0 |
| [asp] width [µm]: | (low) 3.0 (high) 4.0 |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 1.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trentepohliaceous, trentepohlioid |