
LIAS light – Item Descriptions
LIASlight ItemID: 4963
Porpidia superba (Körb.) Hertel & Knoph
Characters[*]: | Character States[*]: |
---|---|
global occurrence: | Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic |
substrate: | rock – siliceous, siliciferous, acidic | rock – calcareous, calciferous, basic | rock, stones, pebbles – unspecified |
life habit: | lichenized (mutualistic with algal photobionts) |
thallus: | crustose (crustaceous) – episubstratal – unspecified |
thallus: | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate |
[th] upper surface: | grey(ish) | white(ish) | blue(ish) white | yellow(ish) white (ivory, off-white, cream-coloured) |
[th marginal and upper surface] specific structures: | absent |
[th] morphol substructures (eg areoles, squamules): | discontiguous, dispersed (throughout the thallus) | distantly discontiguous |
[th] morphol substructures (eg areoles, lobes, branches) upper surface: | verrucose, warted | bullate | cracked, fissured, fractured, rimulose, subrimose |
[th] medulla amyloidity: | absent |
ascomata: | absent | present |
ascoma: | apothecial, apothecioid – hymenial |
ascoma [mm]: | (low) 0.5 (high) 1.2 (max) 2.0 |
ascoma: | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial |
[ascm, if apoth] disc, mazaedium: | plane, flat, flattened, expanded | subconvex, slightly convex | convex |
[ascm, if apoth] disc, mazaedium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black |
[ascm, if apoth] disc, mazaedium: | epruinose | pruinose |
[ascm, if apoth] disc, mazaedium pruina: | scarce, sparse, fine | dense |
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black |
[ascm, if apoth] margin excipular photobionts: | absent |
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (if pale: orange brown) |
[ascm] paraphyses/-oids: | present |
[ascm] epihymenium, epithecium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | yellow(ish) brown | red(dish) brown (pale: orange brown) |
asci: | lecanoralean |
[asc] tholus: | thickened |
[asc] tholus amyloidity (iodine reaction): | present |
[asc] tholus amyloidity pattern: | with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc) |
ascospores: | (median) 8.0 |
[asp] shape: | ellipsoidal |
[asp] length [µm]: | (low) 16.0 (high) 21.0 (max) 33.0 |
[asp] width [µm]: | (min) 6.0 (low) 7.0 (high) 14.0 |
[asp] septa: | absent – spore lumen unilocular, monolocular |
[asp] pigmentation: | hyaline, colourless |
[asp] perispore, epispore: | not apparent | thin, thinly halonate | thick, distincly halonate |
conidiomata: | absent | present |
conidia: | bacilliform, bacillar |
secondary metabolites: | absent | present |
secondary metabolites: | stictic acid |
primary photobiont: | present |
secondary photobionts (eg in cephalodia): | absent |
primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |