LIAS light – Item Descriptions
LIASlight ItemID: 13762
Micarea capitata M. Svensson & G. Thor
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Europe |
| substrate: | bryophytes – mosses, liverworts |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | continuous, diffuse, effuse |
| [th] upper surface: | grey(ish) |
| [th marginal and upper surface] specific structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.1 (low) 0.15 (high) 0.25 (max) 0.35 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | distinctly convex | strongly convex, hemispherical, (sub-)globose | subconcave, slightly concave |
| [ascm, if apoth] disc, mazaedium: | black(ish) |
| [ascm, if apoth] disc, mazaedium: | epruinose |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | black(ish) green |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 0.8 (high) 1.5 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (low) 0.8 (high) 2.0 |
| [ascm] epihymenium, epithecium: | blue(ish) green (turquoise) |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | present |
| [asc] tholus amyloidity pattern: | with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc) |
| ascospores: | (median) 8.0 |
| [asp] shape: | ellipsoidal |
| [asp] length [µm]: | (min) 7.5 (low) 9.0 (high) 11.0 (max) 12.0 |
| [asp] width [µm]: | (min) 2.5 (low) 3.0 (high) 4.0 (max) 4.0 |
| [asp] septa: | absent – spore lumen unilocular, monolocular | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 1.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |