LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 4055

Opegrapha herbarum Mont.

Characters[*]:Character States[*]:
global occurrence: Oceania – Australasia | Eurasia – Europe | Americas – North America (incl Mexico)
substrate: wood – dead, living | bark, cork, plant surface – trunks, branches, twigs | rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse
[th] upper surface: grey(ish) | white(ish)
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.5 (high) 1.6
ascoma: sessile, superficial
[ascm, if apoth] disc, mazaedium: black(ish)
[ascm, if apoth] disc, mazaedium: epruinose | pruinose
[ascm, if apoth] disc, mazaedium pruina: scarce, sparse, fine
[ascm, if apoth] margin excipular photobionts: absent
[ascm] paraphyses/-oids: present
[ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (pale: orange brown)
asci: fissitunicate – bitunicate
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): absent | present
[asc] tholus amyloidity pattern: with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc)
ascospores: (median) 8.0
[asp] shape: clavate
[asp] length [µm]: (min) 16.0 (low) 18.0 (high) 24.0 (max) 26.0
[asp] width [µm]: (min) 4.0 (low) 5.0 (high) 7.0 (max) 8.0
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (median) 3.0 (max) 5.0
[asp] pigmentation: hyaline, colourless | medium brown, brownish | reddish brown
conidiomata: absent | present
conidia: bacilliform, bacillar
[co] length [µm]: (low) 3.0 (high) 6.0
secondary metabolites: absent
primary photobiont: present
secondary photobionts (eg in cephalodia): absent
primary photobiont: chlorophytaceous – trentepohliaceous, trentepohlioid

[*] 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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