LIAS light – Item Descriptions
LIASlight ItemID: 4524
Pertusaria pertusa (Weigel) Tuck.
| Characters[*]: | Character States[*]: | 
|---|---|
| global occurrence: | Africa (incl Madagascar) | Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) | 
| substrate: | bark, cork, plant surface – trunks, branches, twigs | 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 | 
| [th] upper surface: | grey(ish) | green(ish) grey | grey(ish) green | 
| [th upper surface]: | epruinose | 
| [th marginal and upper surface] specific structures: | absent | 
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (median) 1.5 (max) 2.5 | 
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | verrucose, warted | 
| ascomata: | absent | present | 
| ascoma: | apothecial, apothecioid – hymenial | 
| ascoma [mm]: | (low) 1.0 (high) 3.0 | 
| ascoma: | immersed, innate | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial | 
| [ascm, if apoth] disc, mazaedium: | black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | 
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | black(ish) | grey(ish) | 
| [ascm] paraphyses/-oids: | present | 
| asci: | lecanoralean | 
| [asc] tholus: | thickened | 
| [asc] tholus amyloidity (iodine reaction): | present | 
| [asc] tholus amyloidity pattern: | with amyloid cap (= Icmadophila-, Lecidea-, Pertusaria-types etc) | 
| ascospores: | (low) 2.0 (high) 4.0 | 
| [asp] length [µm]: | (min) 100.0 (low) 140.0 (high) 240.0 (max) 300.0 | 
| [asp] width [µm]: | (min) 35.0 (low) 40.0 (high) 85.0 | 
| [asp] septa: | absent – spore lumen unilocular, monolocular | 
| [asp] pigmentation: | hyaline, colourless | 
| [asp] perispore, epispore: | not apparent | thin, thinly halonate | ornamented, rough, warted, striate, cracked | 
| secondary metabolites: | present | 
| secondary metabolites: | constictic acid | cryptostictic acid | hypoconstictic acid | hypostictic acid | norstictic acid | stictic acid | coronaton | 
| primary photobiont: | present | 
| secondary photobionts (eg in cephalodia): | absent | 
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |