LIAS light – Item Descriptions
LIASlight ItemID: 446
Bacidia arceutina (Ach.) Arnold
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Europe | Americas – North America (incl Mexico) |
| substrate: | bryophytes – mosses, liverworts | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | continuous, diffuse, effuse | granular, granulose, granulate | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate |
| [th] upper surface: | grey(ish) | white(ish) | green(ish) grey | 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) upper surface: | smooth, plane | rugulose, finely wrinkled |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.2 (low) 0.4(median) 0.5 (high) 0.8 (max) 11.0 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | plane, flat, flattened, expanded | subconvex, slightly convex | convex | distinctly convex |
| [ascm, if apoth] disc, mazaedium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black | red(dish) black | black(ish) brown | grey(ish) brown | blue(ish) brown (violet brown) | yellow(ish) brown | red(dish) brown (if pale: orange brown) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) black | red(dish) black | black(ish) brown | grey(ish) brown | blue(ish) brown (violet brown) | yellow(ish) brown | red(dish) brown (if pale: orange brown) |
| [ascm, if apoth] margin excipular photobionts: | absent |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | yellow(ish) (if dull: buff) | hyaline, colourless | yellow(ish) 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) 1.8(median) 2.2 (high) 2.7 (max) 3.2 |
| [ascm] epihymenium, epithecium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | hyaline, colourless | brown(ish) yellow (ochraceous, ochre) | green(ish) brown (olive brown) | yellow(ish) 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: | filiform, vermiform | acicular (needle-shaped) |
| [asp] length [µm]: | (min) 30.0 (low) 47.0(median) 54.0 (high) 64.0 (max) 71.0 |
| [asp] width [µm]: | (min) 1.2 (low) 1.5(median) 1.8 (high) 2.2 (max) 2.8 |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (min) 3.0 (low) 5.0(median) 7.0 (high) 11.0 (max) 15.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | filiform, vermiform |
| [co] length [µm]: | (low) 9.0 (high) 17.0 |
| secondary metabolites: | absent | present |
| secondary metabolites: | unknown/unidentified pigment(s) |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |