LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 14624

Opegrapha pauciexcipulata Aptroot & Yazici

Characters[*]:Character States[*]:
global occurrence: Eurasia – Asia Extratropical
substrate: bark, cork, plant surface – trunks, branches, twigs
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse | cracked, fissured, fractured, rimose
[th] upper surface: brown(ish) yellow (ochraceous, ochre)
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) upper surface: smooth, plane | cracked, fissured, fractured, rimulose, subrimose
ascomata: absent | present
ascoma: apothecial, apothecioid – hymenial
ascoma [mm]: (min) 0.3
ascoma: sessile, superficial
[ascm, if apoth] disc, mazaedium: plane, flat, flattened, expanded
[ascm, if apoth] disc, mazaedium: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[ascm, if apoth] disc, mazaedium: epruinose
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: brown(ish) (if pale: fawn, tan; if mid: cinnamon)
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (low) 2.0 (high) 3.0
[ascm] epihymenium, epithecium: hyaline, colourless
asci: fissitunicate – bitunicate
[asc] tholus: thickened
[asc] tholus amyloidity (iodine reaction): present
[asc] tholus amyloidity pattern: with amyloid tube, ring (= Collema-, Micarea-, Porpidia-, Psora-types etc)
ascospores: (median) 8.0
[asp] shape: fusiform | acicular (needle-shaped)
[asp] length [µm]: (low) 19.0 (high) 26.0
[asp] width [µm]: (low) 2.5 (high) 3.0
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (low) 7.0 (high) 9.0
[asp] pigmentation: hyaline, colourless
conidiomata: absent | present
conidia: filiform, vermiform | acicular (needle-shaped)
[co] length [µm]: (low) 12.0 (high) 14.0
secondary metabolites: absent
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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