LIAS light – Item Descriptions
LIASlight ItemID: 1879
Dibaeis absoluta (Tuck.) Kalb & Gierl
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Asia Extratropical | Oceania – Australasia | Americas – North America (incl Mexico) | Americas – South and Central America | Oceania – Pacific Islands (Melanesia, Micronesia, Polynesia) | Eurasia – Asia Tropical |
| substrate: | soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified | squamulose (squamulous) |
| thallus: | continuous, diffuse, effuse | compartimentized – areolate, squamulate |
| [th] upper surface: | grey(ish) | green(ish) | yellow(ish) (if dull: buff) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | white(ish) | yellow(ish) green | white(ish) brown (beige) |
| [th upper surface]: | epruinose | pruinose |
| [th marginal and upper surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 0.3 (high) 2.0 (max) 3.0 |
| ascoma: | subpedicellate, substipitate, subpedunculate, substalked | pedicellate, stipitate, pedunculate, stalked |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded | subconvex, slightly convex |
| [ascm, if apoth] disc, mazaedium: | white(ish) brown (beige) | white(ish) red (rose) | yellow(ish) white (ivory, off-white, cream-coloured) |
| [ascm, if apoth] disc, mazaedium: | pruinose |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | white(ish) red (rose) |
| [ascm] paraphyses/-oids: | present |
| asci: | unitunicate |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | present |
| [asc] tholus amyloidity pattern: | with amyloid cap (= Icmadophila-, Lecidea-, Pertusaria-types etc) |
| ascospores: | (min) 4.0(median) 8.0 |
| [asp] shape: | ellipsoidal | ovoid, ovate | ellipsoid-cylindrical |
| [asp] length [µm]: | (min) 9.0 (low) 11.0 (high) 15.0 (max) 15.5 |
| [asp] width [µm]: | (min) 4.0 (low) 4.5 (high) 6.5 (max) 8.0 |
| [asp] septa: | absent – spore lumen unilocular, monolocular | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 1.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| secondary metabolites: | present |
| secondary metabolites: | baeomycesic acid | barbatic acid | squamatic acid | ursolic acid | consquamatic acid |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |