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LIAS light – Item Descriptions
LIASlight ItemID: 4776
Placidium lachneum (Ach.) de Lesd.
Characters[*]: | Character States[*]: |
---|---|
global occurrence: | Africa (incl Madagascar) | Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico) | Americas – South and Central America | Arctic |
substrate: | soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts |
life habit: | lichenized (mutualistic with algal photobionts) |
thallus: | squamulose (squamulous) |
[th] upper surface: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (if pale: orange brown) |
[th upper surface]: | epruinose |
[th marginal and upper surface] specific structures: | absent |
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (low) 2.0 (high) 7.0 |
[th] lower surface: | black(ish) |
[th lower surface] specific structures: | present |
[th lower surface] rhizines, rhizoid structures: | present |
ascomata: | absent | present |
ascoma: | perithecial, perithecioid – hymenial |
ascoma [mm]: | (min) 0.55 |
ascoma: | immersed, innate |
[ascm] paraphyses/-oids: | absent |
asci: | fissitunicate – verrucarialean |
[asc] tholus: | not thickened | thickened |
[asc] tholus amyloidity (iodine reaction): | absent |
ascospores: | (median) 8.0 |
[asp] shape: | ellipsoidal |
[asp] length [µm]: | (min) 12.0 (low) 14.0(median) 15.3 (high) 17.0 (max) 18.0 |
[asp] width [µm]: | (low) 6.0(median) 7.2 (high) 8.0 |
[asp] septa: | absent – spore lumen unilocular, monolocular |
[asp] pigmentation: | hyaline, colourless |
[asp] perispore, epispore: | not apparent |
conidiomata: | absent | present |
conidia: | bacilliform, bacillar |
[co] length [µm]: | (min) 4.5 (low) 5.0(median) 5.7 (high) 6.0 (max) 7.0 |
secondary metabolites: | absent |
primary photobiont: | present |
secondary photobionts (eg in cephalodia): | absent |
primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |