LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 14035

Buellia sequax (Nyl.) Zahlbr.

Characters[*]:Character States[*]:
global occurrence: Africa (incl Madagascar) | Eurasia – Asia Extratropical | Eurasia – Europe
substrate: lichens, lichenized fungi | rock – siliceous, siliciferous, acidic
life habit: lichenized (mutualistic with algal photobionts) | lichenicolous (in/on lichens)
thallus: crustose (crustaceous) – endosubstratal, inconspicuous, immersed | crustose (crustaceous) – episubstratal – unspecified
thallus: granular, granulose, granulate | compartimentized – areolate, squamulate
[th] upper surface: grey(ish)
[th marginal and upper surface] specific structures: absent
[th] medulla amyloidity: absent
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (low) 0.3 (high) 0.7
ascoma: immersed, innate | subsessile, subimmersed, adnate, semi-immersed, emergent | sessile, superficial
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded | subconvex, slightly convex | convex | distinctly convex | strongly convex, hemispherical, (sub-)globose
[ascm, if apoth] disc, mazaedium: black(ish)
[ascm, if apoth] disc, mazaedium: epruinose | pruinose
[ascm, if apoth] disc, mazaedium pruina: scarce, sparse, fine
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: black(ish)
[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: amyloid with acuate axial body towards the apex (= Bacidia-, Buellia-, Ramalina-types etc)
ascospores: (median) 8.0
[asp] shape: oblong, oblong-obtuse
[asp] length [µm]: (low) 11.0 (high) 13.5
[asp] width [µm]: (low) 4.5 (high) 5.5
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (median) 1.0
[asp] pigmentation: medium brown, brownish
[asp] perispore, epispore: ornamented, rough, warted, striate, cracked
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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