LIAS light – Item Descriptions
LIASlight ItemID: 11922
Massalongia griseolobulata Øvstedal
| Characters[*]: | Character States[*]: |
|---|---|
| global occurrence: | Antarctic – Southern Subpolar Islands, Subantarctic Islands |
| substrate: | bryophytes – mosses, liverworts |
| life habit: | lichenized (mutualistic with algal photobionts) |
| thallus: | squamulose (squamulous) |
| thallus: | compartimentized – areolate, squamulate |
| [th] upper surface: | grey(ish) yellow |
| [th marginal and upper surface] specific structures: | absent |
| [th] morphol substructures (eg areoles, lobes, branches) width [mm]: | (min) 0.1 (low) 0.3 (high) 0.8 |
| [th] lower surface: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) |
| [th lower surface] specific structures: | present |
| [th lower surface] rhizines, rhizoid structures: | present |
| [th lower surface] rhizines, rhizinoid structures: | unbranched, simple |
| ascomata: | absent | present |
| ascoma: | apothecial, apothecioid – hymenial |
| ascoma [mm]: | (min) 0.5 |
| ascoma: | sessile, superficial |
| [ascm, if apoth] disc, mazaedium: | convex |
| [ascm, if apoth] disc, mazaedium: | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | grey(ish) blue |
| [ascm] paraphyses/-oids: | present |
| [ascm] paraphyses/-oid cells width [µm]: | (median) 2.0 |
| 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: | cylindrical |
| [asp] length [µm]: | (low) 25.0 (high) 30.0 |
| [asp] width [µm]: | (low) 7.0 (high) 11.0 |
| [asp] septa: | present |
| [asp] septa: | transversely septate |
| [asp] transversal septa: | (min) 4.0 (low) 6.0 (high) 7.0 |
| [asp] pigmentation: | hyaline, colourless |
| secondary metabolites: | absent |
| primary photobiont: | present |
| secondary photobionts (eg in cephalodia): | absent |
| primary photobiont: | cyanobacterial |