LIAS light – Item Descriptions
LIASlight ItemID: 4908
Porina guentheri (Flot.) Zahlbr.
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Africa (incl Madagascar) | Eurasia – Asia Extratropical | Oceania – Australasia | Eurasia – Europe | Eurasia – Asia Tropical |
| substrate: | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | continuous, diffuse, effuse | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate |
| [th] upper surface: | grey(ish) | red(dish) grey | brown(ish) green (olivaceous, olive green) | grey(ish) brown | green(ish) brown (olive brown) | black(ish) red |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, squamules): | contiguous, coherent (throughout the thallus) |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane | rugulose, finely wrinkled |
| ascomata: | absent | present |
| ascoma: | perithecial, perithecioid – hymenial |
| ascoma [mm]: | (min) 0.23 (low) 0.3 (high) 0.7 (max) 0.8 |
| ascoma: | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | black(ish) | black(ish) red |
| [ascm] paraphyses/-oids: | present |
| asci: | unitunicate |
| [asc] tholus: | not thickened |
| [asc] tholus amyloidity (iodine reaction): | absent |
| ascospores: | (median) 8.0 |
| [asp] shape: | clavate | fusiform | biclavate |
| [asp] length [µm]: | (min) 22.0 (low) 32.0 (high) 45.0 (max) 49.0 |
| [asp] width [µm]: | (min) 3.5 (low) 5.0 (high) 6.5 |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (min) 3.0 (low) 5.0 (high) 7.0 (max) 9.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | ellipsoidal | fusiform | bacilliform, bacillar | [cur] – curved, unciform, falcate, sickle-shaped |
| [co] length [µm]: | (low) 2.0 (high) 4.0 |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trentepohliaceous, trentepohlioid |