LIAS light – Item Descriptions
LIASlight ItemID: 7275
Bacidia medialis (Tuck.) Zahlbr.
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Africa (incl Madagascar) | Eurasia – Asia Extratropical | Americas – North America (incl Mexico) | Americas – South and Central America | Eurasia – Asia Tropical |
| substrate: | bark, cork, plant surface – trunks, branches, twigs | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | continuous, diffuse, effuse | granular, granulose, granulate | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate |
| [th] upper surface: | grey(ish) | green(ish) grey | grey(ish) green | brown(ish) green (olivaceous, olive green) | green(ish) brown (olive brown) |
| [th upper surface]: | epruinose |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (median) 0.1 |
| [th] morphol substructures (eg areoles, squamules): | contiguous, coherent (throughout the thallus) | discontiguous, dispersed (throughout the thallus) |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | granulose, granular | verrucose, warted | bullate | subsquamulose |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.3 (low) 0.3(median) 0.5 (high) 0.7 (max) 0.9 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | plane, flat, flattened, expanded | subconvex, slightly convex | convex |
| [ascm, if apoth] disc, mazaedium: | yellow(ish) (if dull: buff) | red(dish) yellow (orange, orange yellow) | yellow(ish) brown | red(dish) brown (if pale: orange brown) | yellow(ish) red (orange red) | red(dish) white (pink) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | yellow(ish) (if dull: buff) | red(dish) yellow (orange, orange yellow) | yellow(ish) brown | red(dish) brown (if pale: orange brown) | yellow(ish) red (orange red) | red(dish) white (pink) |
| [ascm, if apoth] margin excipular photobionts: | absent |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | hyaline, colourless | yellow(ish) brown | red(dish) brown (if pale: orange brown) |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.0 (high) 1.6 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (min) 1.0 (low) 1.5(median) 1.7 (high) 2.1 (max) 3.2 |
| [ascm] epihymenium, epithecium: | yellow(ish) (if dull: buff) | hyaline, colourless | yellow(ish) brown | red(dish) brown (pale: orange brown) |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | present |
| [asc] tholus amyloidity pattern: | amyloid with acuate axial body towards the apex (= Bacidia-, Buellia-, Ramalina-types etc) |
| ascospores: | (median) 8.0 |
| [asp] shape: | clavate | ellipsoid-cylindrical | [cur] – curved, unciform, falcate, sickle-shaped | fusiform | bacilliform, bacillar |
| [asp] length [µm]: | (min) 16.0 (low) 20.0(median) 23.0 (high) 26.0 (max) 40.0 |
| [asp] width [µm]: | (min) 1.9 (low) 2.0(median) 2.8 (high) 3.4 (max) 3.7 |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (min) 3.0 (low) 3.0(median) 3.0 (high) 4.0 (max) 7.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | filiform, vermiform |
| [co] length [µm]: | (low) 13.0 (high) 17.0 |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |