LIAS light – Item Descriptions
LIASlight ItemID: 8153
Placopsis elixii D. J. Galloway
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Oceania – Australasia |
| substrate: | rock – siliceous, siliciferous, acidic |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | placodioid-crustose, placodioid-foliose |
| thallus: | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate |
| [th] upper surface: | green(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | white(ish) green | red(dish) brown (if pale: orange brown) | green(ish) white | yellow(ish) white (ivory, off-white, cream-coloured) | red(dish) white (pink) |
| [th upper surface]: | pruinose |
| [th marginal and upper surface] specific structures: | absent | present |
| [th margin] cilia, cilioid structures: | absent |
| [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) 0.1(median) 0.5 (high) 2.0 |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | maculate | pseudocyphellate, with pseudocyphellae |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.5 (low) 1.0 (high) 1.5 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded | subconvex, slightly convex |
| [ascm, if apoth] disc, mazaedium: | brown(ish) black | red(dish) brown (if pale: orange brown) | brown(ish) red (carneous) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | red(dish) brown (if pale: orange brown) |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (median) 2.5 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (median) 2.5 |
| [ascm] epihymenium, epithecium: | red(dish) brown (pale: orange brown) |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | absent |
| ascospores: | (median) 8.0 |
| [asp] shape: | broadly ellipsoidal | ellipsoidal |
| [asp] length [µm]: | (min) 30.0 (low) 31.5 (high) 36.5 (max) 40.0 |
| [asp] width [µm]: | (min) 8.5 (low) 10.0 (high) 12.0 (max) 13.5 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| secondary metabolites: | present |
| secondary metabolites: | lecanoric acid |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | present |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |