LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 12752

Opegrapha fuscothallina Lücking & Matzer

Characters[*]:Character States[*]:
global occurrence: Americas – North America (incl Mexico) | Americas – South and Central America
substrate: leaves, fronds, needles – living
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse
[th] upper surface: brown(ish) grey
[th upper surface]: epruinose
[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) 0.25
ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent
[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
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
[asp] length [µm]: (low) 30.0 (high) 35.0
[asp] width [µm]: (low) 2.5 (high) 3.5
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (low) 7.0 (high) 9.0 (max) 13.0
[asp] pigmentation: hyaline, colourless | greyish brown
[asp] perispore, epispore: thin, thinly halonate | thick, distincly halonate
conidiomata: absent | present
conidia: ellipsoidal
[co] length [µm]: (low) 2.5 (high) 3.5
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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