LIAS light – Item Descriptions
LIASlight ItemID: 15355
Placocarpus melanophthalmosus Cl. Roux & Gueidan
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Europe |
| substrate: | lichens, lichenized fungi | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) | lichenicolous (in/on lichens) |
| thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed | squamulose (squamulous) |
| thallus: | continuous, diffuse, effuse | compartimentized – areolate, squamulate |
| [th] upper surface: | grey(ish) |
| [th upper surface]: | pruinose |
| [th marginal and upper surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | perithecial, perithecioid – hymenial |
| ascoma [mm]: | (low) 0.1 (high) 0.25 |
| ascoma: | immersed, innate |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | black(ish) |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless |
| [ascm] paraphyses/-oids: | absent | present |
| asci: | fissitunicate – verrucarialean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | absent |
| ascospores: | (median) 8.0 |
| [asp] shape: | ellipsoidal |
| [asp] length [µm]: | (min) 15.5 (low) 17.5(median) 19.6 (high) 22.5 (max) 25.0 |
| [asp] width [µm]: | (min) 7.5 (low) 8.0(median) 9.3 (high) 11.0 (max) 11.5 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent | thin, thinly halonate |
| conidiomata: | absent | present |
| conidia: | bacilliform, bacillar |
| [co] length [µm]: | (min) 3.5 (low) 4.5 (high) 5.5 |
| secondary metabolites: | absent |
| host organism: | |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |