LIAS light – Item Descriptions
LIASlight ItemID: 14005
Lithothelium austropacificum P. M. McCarthy
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Oceania – Australasia |
| substrate: | rock – siliceous, siliciferous, acidic |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate |
| [th] upper surface: | grey(ish) green | yellow(ish) green |
| [th upper surface]: | epruinose |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (low) 0.3 (high) 1.2 |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane |
| ascomata: | absent | present |
| ascoma: | perithecial, perithecioid – hymenial |
| ascoma [mm]: | (min) 0.8(median) 1.1 (max) 1.7 |
| ascoma: | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | black(ish) |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.0 (high) 2.0 |
| asci: | fissitunicate – bitunicate |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | absent |
| ascospores: | (median) 8.0 |
| [asp] shape: | broadly ellipsoidal | ellipsoidal | narrowly ellipsoidal |
| [asp] length [µm]: | (min) 18.0(median) 22.5 (max) 28.0 |
| [asp] width [µm]: | (min) 8.0(median) 11.0 (max) 14.0 |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 3.0 |
| [asp] pigmentation: | pale brown | medium brown, brownish | dark brown |
| [asp] perispore, epispore: | not apparent | ornamented, rough, warted, striate, cracked |
| conidiomata: | absent | present |
| conidia: | filiform, vermiform |
| [co] length [µm]: | (low) 10.0 (high) 20.0 |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trentepohliaceous, trentepohlioid |