LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 6778

Verrucaria rheithrophila Zschacke

Characters[*]:Character States[*]:
global occurrence: Oceania – Australasia | Eurasia – Europe | Americas – North America (incl Mexico)
substrate: rock – siliceous, siliciferous, acidic | rock, stones, pebbles – unspecified
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse | cracked, fissured, fractured, rimose
[th] upper surface: green(ish) | brown(ish) (if pale: fawn, tan; if mid: cinnamon) | green(ish) grey | black(ish) green | grey(ish) green | brown(ish) green (olivaceous, olive green)
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, squamules): contiguous, coherent (throughout the thallus)
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | pseudocyphellate, with pseudocyphellae
ascomata: absent | present
ascoma: perithecial, perithecioid – hymenial
ascoma [mm]: (median) 0.2 (max) 0.22
ascoma: immersed, innate
[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: hyaline, colourless
[ascm] paraphyses/-oids: absent
asci: fissitunicate – verrucarialean
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): absent
ascospores: (median) 8.0
[asp] shape: ellipsoidal
[asp] length [µm]: (min) 8.5 (low) 12.0(median) 12.7 (high) 14.0 (max) 16.0
[asp] width [µm]: (min) 5.0 (low) 6.5(median) 7.4 (high) 8.0 (max) 10.0
[asp] septa: absent – spore lumen unilocular, monolocular
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
secondary metabolites: absent
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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