LIAS light – Item Descriptions
LIASlight ItemID: 4565
Petractis hypoleuca (Ach.) Vězda
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Europe |
| substrate: | rock – calcareous, calciferous, basic |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed |
| [th] upper surface: | white(ish) | white(ish) yellow | white(ish) red (rose) |
| [th marginal and upper surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma: | immersed, innate |
| [ascm, if apoth] disc, mazaedium: | yellow(ish) red (orange red) |
| [ascm] paraphyses/-oids: | present |
| [asc] tholus amyloidity (iodine reaction): | absent |
| [asp] length [µm]: | (low) 20.0 (high) 38.0 |
| [asp] width [µm]: | (low) 4.5 (high) 7.0 |
| [asp] septa: | present |
| [asp] septa: | transversely septate | muriformly septate – muriform, submuriform |
| [asp] transversal septa: | (low) 5.0 (high) 9.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | thick, distincly halonate |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trentepohliaceous, trentepohlioid |