LIAS light – Item Descriptions
LIASlight ItemID: 3445
Leptogium intermedium (Arnold) Arnold
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Eurasia – Europe | Americas – North America (incl Mexico) |
| substrate: | soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | bark, cork, plant surface – trunks, branches, twigs | rock – calcareous, calciferous, basic | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | squamulose (squamulous) | foliose (foliaceous), leaf-like |
| [th] upper surface: | grey(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | blue(ish) grey |
| [th upper surface]: | epruinose |
| [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, squamules): | discontiguous, dispersed (throughout the thallus) |
| [th] morphol substructures (eg areoles, lobes, branches) upper surface: | smooth, plane |
| [th] morphol substructures (eg lobes, branches): | subdichotomous |
| [th] lower surface: | grey(ish) | white(ish) |
| [th lower surface] specific structures: | absent | present |
| [th lower surface] rhizines, rhizoid structures: | absent |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.2 (low) 0.5 (high) 0.8 (max) 1.5 |
| ascoma: | sessile, superficial | subpedicellate, substipitate, subpedunculate, substalked |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | black(ish) brown | yellow(ish) brown | 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: | yellow(ish) brown |
| [ascm, if apoth] margin excipular photobionts: | present | abundant |
| [ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: | yellow(ish) (if dull: buff) | hyaline, colourless |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.0 (high) 2.0 |
| [ascm] epihymenium, epithecium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) |
| 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: | (min) 4.0(median) 8.0 |
| [asp] shape: | ellipsoidal |
| [asp] length [µm]: | (low) 20.0 (high) 32.0 (max) 35.0 |
| [asp] width [µm]: | (min) 8.0 (low) 9.0 (high) 12.0 (max) 13.0 |
| [asp] septa: | present |
| [asp] septa: | transversely septate | muriformly septate – muriform, submuriform |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | bacilliform, bacillar |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | cyanobacterial |