LIAS light – Item Descriptions
LIASlight ItemID: 2934
Characters[*]: | Character States[*]: |
---|---|
global occurrence: | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic |
substrate: | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified |
life habit: | lichenized (mutualistic with algal photobionts) |
thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified |
thallus: | continuous, diffuse, effuse | granular, granulose, granulate |
[th] upper surface: | grey(ish) | yellow(ish) grey | white(ish) grey |
[th upper surface]: | epruinose |
[th marginal and upper surface] specific structures: | absent |
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (median) 0.25 |
[th] morphol substructures (eg areoles, squamules): | discontiguous, dispersed (throughout the thallus) |
[th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane | granulose, granular |
ascomata: | absent | present |
ascoma: | apothecial, apothecioid – hymenial |
ascoma [mm]: | (low) 0.2 (high) 0.6 (max) 0.8 |
ascoma: | sessile, superficial |
[ascm, if apoth] disc, mazaedium: | plane, flat, flattened, expanded | subconvex, slightly convex |
[ascm, if apoth] disc, mazaedium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | yellow(ish) grey | red(dish) brown (if pale: orange brown) |
[ascm, if apoth] disc, mazaedium: | epruinose | pruinose |
[ascm, if apoth] disc, mazaedium pruina: | scarce, sparse, fine |
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | grey(ish) | yellow(ish) grey | white(ish) grey |
[ascm, if apoth] margin excipular photobionts: | present | abundant |
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless |
[ascm] paraphyses/-oids: | present |
[ascm] paraphyses/-oid cells width [µm]: | (low) 1.5 (high) 2.5 |
[ascm] paraphyses/-oid apical cells width [µm]: | (low) 2.5 (high) 3.5 |
[ascm] epihymenium, epithecium: | hyaline, colourless | brown(ish) yellow (ochraceous, ochre) | yellow(ish) brown |
asci: | lecanoralean |
[asc] tholus: | thickened |
[asc] tholus amyloidity (iodine reaction): | present |
[asc] tholus amyloidity pattern: | amyloid with widening axial body towards the apex (= Lecanora-, Parmelia-, Rinodina-types etc) |
ascospores: | (median) 8.0 |
[asp] shape: | ellipsoidal |
[asp] length [µm]: | (low) 8.0 (high) 11.0 (max) 15.0 |
[asp] width [µm]: | (low) 4.5 (high) 6.5 (max) 7.0 |
[asp] septa: | absent – spore lumen unilocular, monolocular |
[asp] pigmentation: | hyaline, colourless |
[asp] perispore, epispore: | not apparent |
secondary metabolites: | present |
secondary metabolites: | 2,5-dichlorolichexanthone |
primary photobiont: | present |
secondary photobionts (eg in cephalodia): | absent |
primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |