LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 5762

Schismatomma rediunta (Hasse) Tehler

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: crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse
[th] upper surface: white(ish) | yellow(ish) white (ivory, off-white, cream-coloured)
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.2 (high) 0.5
ascoma: immersed, innate | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial
[ascm, if apoth] disc, mazaedium: white(ish) grey
[ascm, if apoth] disc, mazaedium: pruinose
[ascm, if apoth] disc, mazaedium pruina: dense
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: black(ish)
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (min) 1.0
[ascm] epihymenium, epithecium: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
asci: fissitunicate – bitunicate
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
ascospores: (median) 8.0
[asp] shape: [cur] – curved, unciform, falcate, sickle-shaped | fusiform
[asp] length [µm]: (min) 16.0 (low) 19.0(median) 20.6 (high) 22.0 (max) 25.0
[asp] width [µm]: (min) 4.0 (low) 4.0(median) 4.8 (high) 5.0 (max) 6.0
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (median) 3.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: not apparent
conidiomata: absent | present
conidia: cylindrical
[co] length [µm]: (low) 6.0 (high) 9.0
secondary metabolites: present
secondary metabolites: roccellic acid
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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