LIAS light – Item Descriptions
LIASlight ItemID: 15014
Megalaria brodoana S. Ekman & Tønsberg
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Americas – North America (incl Mexico) |
| substrate: | bark, cork, plant surface – trunks, branches, twigs |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | granular, granulose, granulate | compartimentized – areolate, squamulate |
| [th] upper surface: | green(ish) | blue(ish) green (turquoise) |
| [th upper surface]: | epruinose |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (min) 0.1 |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | granulose, granular |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.5 (low) 0.6(median) 0.9 (high) 1.2 (max) 1.5 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | plane, flat, flattened, expanded | subconvex, slightly convex |
| [ascm, if apoth] disc, mazaedium: | black(ish) | red(dish) black | red(dish) brown (if pale: orange brown) | brown(ish) red (carneous) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | red(dish) brown (if pale: orange brown) |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | red(dish) brown (if pale: orange brown) | brown(ish) red (carneous) |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.2 (high) 2.4 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (min) 1.2 (low) 1.9(median) 2.7 (high) 3.6 (max) 5.7 |
| [ascm] epihymenium, epithecium: | grey(ish) green | grey(ish) brown | green(ish) brown (olive 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: | (low) 6.0 (high) 8.0 |
| [asp] shape: | subglobose, subspherical | broadly ellipsoidal |
| [asp] length [µm]: | (min) 15.0 (low) 17.0(median) 19.0 (high) 21.0 (max) 26.0 |
| [asp] width [µm]: | (min) 7.4 (low) 9.1(median) 10.4 (high) 11.0 (max) 13.6 |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 1.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | thick, distincly halonate |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |