LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 3738

Micarea denigrata (Fr.) Hedl.

Characters[*]:Character States[*]:
global occurrence: Oceania – Australasia | Eurasia – Europe | Americas – North America (incl Mexico) | Arctic
substrate: wood – dead, living | bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified
[th] upper surface: grey(ish) | green(ish) grey | grey(ish) green
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.06 (high) 0.2
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (median) 0.5
ascoma: sessile, superficial
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex | convex
[ascm, if apoth] disc, mazaedium: black(ish) | grey(ish)
[ascm, if apoth] margin excipular photobionts: absent
[ascm] paraphyses/-oids: present
[ascm] epihymenium, epithecium: green(ish)
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: elongate-fusiform, ellipsoidal-fusiform | [cur] – curved, unciform, falcate, sickle-shaped | narrowly ellipsoidal | fusiform
[asp] length [µm]: (min) 7.0 (low) 9.0 (high) 16.0 (max) 18.0
[asp] width [µm]: (low) 2.0 (high) 3.3 (max) 3.5
[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
conidiomata: absent | present
conidia: fusiform | [cur] – curved, unciform, falcate, sickle-shaped
[co] length [µm]: (low) 3.0 (high) 24.0
secondary metabolites: present
secondary metabolites: gyrophoric acid
primary photobiont: present
secondary photobionts (eg in cephalodia): absent
primary photobiont: chlorophytaceous – trebouxiaceous, chlorococcoid

[*] Not all (synonymous, equivalent or similar) terms being provided in parallel for a character or character state (e.g. 'endosubstratal, inconspicuous, immersed') need to be valid for the taxon under concern.


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