LIAS light – Item Descriptions
LIASlight ItemID: 4962
Porpidia speirea (Ach.) Kremp.
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Africa (incl Madagascar) | Oceania – Australasia | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic |
| substrate: | rock – calcareous, calciferous, basic | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | crustose (crustaceous) – episubstratal – unspecified |
| thallus: | continuous, diffuse, effuse | granular, granulose, granulate | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate |
| [th] upper surface: | grey(ish) | white(ish) | white(ish) brown (beige) |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (low) 0.5 (high) 1.0 (max) 2.0 |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane | granulose, granular | verrucose, warted |
| [th] medulla amyloidity: | present |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.2 (low) 0.9 (high) 1.6 (max) 2.8 |
| ascoma: | immersed, innate | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded | subconvex, slightly convex |
| [ascm, if apoth] disc, mazaedium: | black(ish) | grey(ish) |
| [ascm, if apoth] disc, mazaedium: | epruinose | pruinose |
| [ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: | black(ish) |
| [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) | brown(ish) black |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.3 (high) 2.0 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (low) 3.0 (high) 4.0 |
| [ascm] epihymenium, epithecium: | brown(ish) green (olivaceous, olive green) | green(ish) brown (olive brown) |
| 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) 11.0 (low) 12.0 (high) 19.0 (max) 22.0 |
| [asp] width [µm]: | (low) 6.0 (high) 9.0 |
| [asp] septa: | absent – spore lumen unilocular, monolocular |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent | thin, thinly halonate | thick, distincly halonate |
| conidiomata: | absent | present |
| conidia: | bacilliform, bacillar |
| [co] length [µm]: | (low) 9.0(median) 10.5 (high) 13.0 |
| secondary metabolites: | present |
| secondary metabolites: | 2'-O-methylmicrophyllinic acid | 2'-O-methylperlatolic acid | confluentic acid |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | chlorophytaceous – trebouxiaceous, chlorococcoid |