LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 11621

Rhizocarpon subareolatum E. S. Hansen

Characters[*]:Character States[*]:
global occurrence: Arctic
substrate: lichens, lichenized fungi
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: compartimentized – areolate, squamulate
[th] upper surface: white(ish) yellow
[th upper surface]: epruinose
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) width [mm]: (low) 0.5 (high) 1.5
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane
[th] medulla amyloidity: present
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (min) 1.0
[ascm, if apoth] disc, mazaedium: black(ish)
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: black(ish)
[ascm, if apoth] margin excipular photobionts: absent
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[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: with amyloid cap (= Icmadophila-, Lecidea-, Pertusaria-types etc)
ascospores: (median) 8.0
[asp] shape: broadly ellipsoidal
[asp] length [µm]: (low) 22.0 (high) 32.0
[asp] width [µm]: (low) 12.0 (high) 16.0
[asp] septa: present
[asp] septa: muriformly septate – muriform, submuriform
[asp] pigmentation: dark brown
[asp] perispore, epispore: thick, distincly halonate
secondary metabolites: present
host organism:

[*] 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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