LiasLight

LIAS light – Item Descriptions


LIASlight ItemID: 6150

Thelopsis melathelia Nyl.

Characters[*]:Character States[*]:
global occurrence: Eurasia – Europe | Americas – North America (incl Mexico) | Arctic
substrate: soil, clay, humus, turf, detritus, dead leaves | bryophytes – mosses, liverworts
life habit: lichenized (mutualistic with algal photobionts)
thallus: crustose (crustaceous) – episubstratal – unspecified
thallus: continuous, diffuse, effuse
[th] upper surface: brown(ish) (if pale: fawn, tan; if mid: cinnamon) | red(dish) | grey(ish) green | red(dish) brown (if pale: orange brown) | yellow(ish) red (orange red)
[th upper surface]: epruinose
[th marginal and upper surface] specific structures: absent
[th] morphol substructures (eg areoles, lobes, branches) upper surface: verruculose, minutely warted
ascomata: absent | present
ascoma: perithecial, perithecioid – hymenial
ascoma [mm]: (low) 0.5 (high) 0.8
ascoma: subsessile, subimmersed, adnate, semi-immersed, emergent
[ascm, if apoth] margin surface; [if perith] periostiolar area, ostiole, involucrellum: black(ish) | brown(ish) black | black(ish) brown
[ascm, if apoth] margin excipular photobionts: absent
[ascm, if apoth] subhymenial layers, hypothecium; [if perith] basal excipulum: black(ish) brown | red(dish) brown (if pale: orange brown)
[ascm] paraphyses/-oids: present
[ascm] paraphyses/-oid cells width [µm]: (median) 2.0
[ascm] paraphyses/-oid apical cells width [µm]: (median) 1.5
asci: unitunicate
[asc] tholus: not thickened
[asc] tholus amyloidity (iodine reaction): absent
ascospores: (low) 80.0 (high) 150.0
[asp] shape: ellipsoidal
[asp] length [µm]: (low) 11.0 (high) 20.0
[asp] width [µm]: (low) 4.0 (high) 7.0
[asp] septa: present
[asp] septa: transversely septate
[asp] transversal septa: (min) 1.0(median) 3.0
[asp] pigmentation: hyaline, colourless
[asp] perispore, epispore: thick, distincly halonate
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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