LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 7644

Arthonia pyrrhuliza Nyl.

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)
[th] upper surface: white(ish) yellow
[th marginal and upper surface] specific structures: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent
[ascm, if apoth] disc, mazaedium: black(ish) brown
[ascm, if apoth] margin excipular photobionts: present
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (median) 2.0
[ascm] paraphyses/-oid apical cells width [µm]: (median) 2.5
[ascm] epihymenium, epithecium: hyaline, colourless | white(ish) brown (beige)
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: obovoid, obovate
[asp] length [µm]: (low) 13.0 (high) 19.0
[asp] width [µm]: (low) 5.0 (high) 7.0
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (low) 3.0 (high) 4.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
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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