LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 2569

Lecania dubitans (Nyl.) A. L. Sm.

Characters[*]:Character States[*]:
global occurrence: Eurasia – Asia Extratropical | Eurasia – Europe | Americas – North America (incl Mexico)
substrate: bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: granular, granulose, granulate | cracked, fissured, fractured, rimose | compartimentized – areolate, squamulate
[th] upper surface: grey(ish) | white(ish) | brown(ish) grey | white(ish) grey | grey(ish) white
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (min) 0.24 (low) 0.34(median) 0.37 (high) 0.4 (max) 0.53
ascoma: sessile, superficial
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex | convex
[ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | black(ish) brown | red(dish) brown (if pale: orange brown)
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | white(ish) grey
[ascm, if apoth] margin excipular photobionts: present
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid apical cells width [µm]: (min) 5.0
[ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) brown (pale: orange brown)
asci: lecanoralean
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
[asc] tholus amyloidity pattern: amyloid with acuate axial body towards the apex (= Bacidia-, Buellia-, Ramalina-types etc)
ascospores: (median) 8.0
[asp] shape: fabiform, reniform | [cur] – curved, unciform, falcate, sickle-shaped
[asp] length [µm]: (min) 10.3 (low) 12.7(median) 13.5 (high) 14.3 (max) 16.2
[asp] width [µm]: (min) 3.7 (low) 4.3(median) 4.4 (high) 4.6 (max) 5.9
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (median) 1.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
secondary metabolites: absent | present
secondary metabolites: unknown/unidentified pigment(s)
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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