LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 15108

Xanthoria alaskana J. W. Thomson

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: squamulose (squamulous)
[th] upper surface: green(ish) | blue(ish) green (turquoise)
[th marginal and upper surface] specific structures: absent | present
[th margin] cilia, cilioid structures: absent
[th upper surface] isidia, isidioid structures: absent
[th upper surface] soredia, soralia, soralioid structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.2 (high) 1.0
[th] lower surface: white(ish)
[th lower surface] specific structures: present
[th lower surface] rhizines, rhizoid structures: present
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.5 (high) 2.0
ascoma: subpedicellate, substipitate, subpedunculate, substalked | pedicellate, stipitate, pedunculate, stalked
[ascm, if apoth] disc, mazaedium: red(dish) yellow (orange, orange yellow)
[ascm, if apoth] disc, mazaedium: epruinose
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: hyaline, colourless
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (low) 1.0 (high) 1.5
[ascm] paraphyses/-oid apical cells width [µm]: (low) 4.0 (high) 5.0
[ascm] epihymenium, epithecium: yellow(ish) (if dull: buff)
asci: lecanoralean
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
[asc] tholus amyloidity pattern: entirely amyloid (= Catillaria-, Teloschistes-types etc)
ascospores: (median) 8.0
[asp] shape: ellipsoidal
[asp] length [µm]: (low) 12.5 (high) 15.0
[asp] width [µm]: (low) 6.0 (high) 8.0
[asp] septa: absent | present – spore lumen bilocular, polarilocular, plurilocular
[asp] septa: transversely septate
[asp] transversal septa: (median) 1.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
secondary metabolites: present
secondary metabolites: parietin | unknown/unidentified anthraquinone(s)

[*] 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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