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Lecanora concilians Nyl.

Data Set Maintenance: Data set standard item. Data set author(s): Lumbsch H. T. & Guderley R. (98-09-01). Data set to be published after submission; 98-09-01.

Nomenclature: Current taxonomic status: accepted or basionymous. Taxonomic rank: species. Lecanora. Lecanoraceae Körb. (1855).

Taxonomic Literature: Lumbsch, H.T., Guderley, R. & Elix, J.A., Bryologist 99: 269-291 [275-277] (1996).

Biogeography: Continent: Northern America and Southern America.

Ecology: Corticolous.

Thallus: Areolate (primarily areolate); separate thallus parts thin. Thallus Outline: Indistinct; soon disappearing. Upper Surface: Verrucose or verruculose, lemon (citrine), matt, smooth; epruinose; not sorediate.

Ascocarps: Soon sessile. Margin: Lecanorine, verrucose or verruculose, smooth, not flexuose or slightly flexuose, persistent, indistinct to prominent, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Plane, dark brown, epruinose. Parathecium (proper excipulum): White, dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, indistinct, eucortical, 10-15-20 µm wide, not basally widened, 10-15-20-(25) µm wide at the base; inspersed with oil droplets. Episamma: Without episamma. Epithecium: Apical cells not swollen or slightly swollen, brownish red or dark brown, insoluble in 10% KOH. Hymenium: Not inspers. Hypothecium: Brownish red; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, (13.5)-14-16-17.5 µm long, (8.5)-9-10.5-11.5 µm wide; wall thin, not ornamented.

Conidiomata: Immersed.

Pycnidia: Cerebriform. Conidiophores: Vobis-type II. Conidia: Filiform; (13)-14-16-18 µm long.

Secondary Metabolites: 2'-O-methylperlatolic acid and atranorin, of the following substance class(es): orcinol depsides.

Spot Tests: Upper surface: C –, PD –.

(report generated 04.Okt.2007)


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