LIAS light – Item Descriptions
LIASlight ItemID: 3313
Megalaria laureri (Th. Fr.) Hafellner
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Asia Extratropical | Oceania – Australasia | Eurasia – Europe | Americas – North America (incl Mexico) |
| substrate: | 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 |
| [th] upper surface: | white(ish) | grey(ish) green |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane | granulose, granular | verrucose, warted |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 0.4(median) 0.9 (high) 1.1 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | plane, flat, flattened, expanded | subconvex, slightly convex |
| [ascm, if apoth] disc, mazaedium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (if pale: orange brown) |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | blue(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (if pale: orange brown) |
| [ascm, if apoth] margin excipular photobionts: | absent |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | red(dish) | red(dish) brown (if pale: orange brown) |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.3 (high) 1.7 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (median) 3.0 |
| [ascm] epihymenium, epithecium: | green(ish) | blue(ish) green (turquoise) | red(dish) brown (pale: orange brown) | blue(ish) red (purple) |
| 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: | ellipsoidal | elongate-fusiform, ellipsoidal-fusiform |
| [asp] length [µm]: | (low) 10.0 (high) 16.0 (max) 18.0 |
| [asp] width [µm]: | (min) 5.0 (low) 6.0 (high) 9.0 |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 1.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| secondary metabolites: | absent | present |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |