LIAS light – Item Descriptions
LIASlight ItemID: 4882
Polychidium muscicola (Sw.) Gray
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Africa (incl Madagascar) | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic |
| substrate: | soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts | rock – siliceous, siliciferous, acidic | rock – calcareous, calciferous, basic | rock, stones, pebbles – unspecified |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | fruticose (fruticous), shrub-like, beard-like |
| [th] upper surface: | black(ish) | grey(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) |
| [th marginal and upper surface] specific structures: | absent | present |
| [th margin] cilia, cilioid structures: | absent |
| [th upper surface] isidia, isidioid structures: | absent |
| [th upper surface] soredia, soralia, soralioid structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (min) 0.05 (low) 0.06 (high) 0.125 (max) 0.2 |
| [th] morphol substructures (eg lobes, branches): | filamentous-dichotomous |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (low) 1.2 (high) 1.5 (max) 2.0 |
| [ascm, if apoth] disc, mazaedium: | concave | plane, flat, flattened, expanded |
| [ascm, if apoth] disc, mazaedium: | red(dish) brown (if pale: orange brown) |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (low) 1.0 (high) 2.0 |
| [ascm] paraphyses/-oid apical cells width [µm]: | (min) 4.5 |
| asci: | lecanoralean |
| [asc] tholus: | thickened |
| [asc] tholus amyloidity (iodine reaction): | present |
| [asc] tholus amyloidity pattern: | with amyloid cap (= Icmadophila-, Lecidea-, Pertusaria-types etc) |
| ascospores: | (median) 8.0 |
| [asp] shape: | ellipsoidal | fusiform |
| [asp] length [µm]: | (low) 15.0 (high) 25.0 |
| [asp] width [µm]: | (low) 4.5 (high) 11.0 |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (median) 1.0 |
| [asp] pigmentation: | hyaline, colourless |
| [asp] perispore, epispore: | not apparent |
| conidiomata: | absent | present |
| conidia: | cylindrical | bacilliform, bacillar |
| [co] length [µm]: | (low) 1.5 (high) 3.5 |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | cyanobacterial |