LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 128

Alectoria vancouverensis (Gyeln.) Gyeln. ex Brodo & D. Hawksw.

Characters[*]:Character States[*]:
global occurrence: Americas – North America (incl Mexico)
substrate: bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: fruticose (fruticous), shrub-like, beard-like
[th] upper surface: yellow(ish) (if dull: buff) | grey(ish) green | yellow(ish) green
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.4 (high) 0.9
[th] morphol substructures (eg areoles, squamules): distantly discontiguous
[th] morphol substructures (eg areoles, lobes, branches) upper surface: pseudocyphellate, with pseudocyphellae
[th] morphol substructures (eg lobes, branches): isotomic-dichotomous
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 1.0 (high) 2.6
ascoma: pedicellate, stipitate, pedunculate, stalked
[ascm, if apoth] disc, mazaedium: concave
[ascm, if apoth] disc, mazaedium: black(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[ascm, if apoth] disc, mazaedium: epruinose
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: yellow(ish) (if dull: buff) | grey(ish) green | yellow(ish) green
[ascm, if apoth] margin excipular photobionts: present | abundant
[ascm] paraphyses/-oids: present
[ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
asci: lecanoralean
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
[asc] tholus amyloidity pattern: amyloid with widening axial body towards the apex (= Lecanora-, Parmelia-, Rinodina-types etc)
ascospores: (low) 2.0 (high) 4.0
[asp] shape: broadly ellipsoidal | ellipsoidal
[asp] length [µm]: (low) 23.0 (high) 35.0
[asp] width [µm]: (low) 16.0 (high) 23.0
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless | medium brown, brownish
[asp] perispore, epispore: thick, distincly halonate
secondary metabolites: present
secondary metabolites: alectoronic acid | barbatic acid | olivetoric acid | usnic 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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