LIAS light – Item Descriptions
LIASlight ItemID: 15059
Lecidella xylogena (Müll. Arg.) Kantvilas & Elix
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Oceania – Australasia |
| substrate: | wood – dead, living |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | granular, granulose, granulate | compartimentized – areolate, squamulate |
| [th] upper surface: | yellow(ish) (if dull: buff) | green(ish) yellow |
| [th marginal and upper surface] specific structures: | absent | present |
| [th margin] cilia, cilioid structures: | absent |
| [th upper surface] isidia, isidioid structures: | absent |
| [th upper surface] soredia, soralia, soralioid structures: | absent | present |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | granulose, granular |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 0.3 (high) 0.7 |
| ascoma: | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | subconvex, slightly convex | subconcave, slightly concave |
| [ascm, if apoth] disc, mazaedium: | grey(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | brown(ish) grey |
| [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: | black(ish) | grey(ish) | red(dish) brown (if pale: orange brown) |
| [ascm, if apoth] margin excipular photobionts: | absent |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (min) 1.0(median) 1.5 (max) 2.0 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (low) 3.5 (high) 5.0 |
| [ascm] epihymenium, epithecium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | grey(ish) green |
| 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: | broadly ellipsoidal |
| [asp] length [µm]: | (min) 7.0 (low) 8.0(median) 10.9 (high) 14.0 |
| [asp] width [µm]: | (low) 4.0(median) 6.3 (high) 8.0 (max) 9.0 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| secondary metabolites: | present |
| secondary metabolites: | 2,4-dichloronorlichexanthone | 2,5,7-trichloro-3-O-methylnorlichexanthone | 4,5,7-trichloronorlichexanthone (asemone) | isoarthothelin | thiophanic acid | thiophaninic acid | usnic acid | isopigmentosin B | isopigmentosin C |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |