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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).

Thallus: Areolate (primarily areolate); separate thallus parts thin or thick. Thallus Outline: Indistinct; white. Upper Surface: Verrucose, pale grey or pale green, matt, smooth; epruinose; not sorediate.

Ascocarps: Soon sessile. Margin: Lecanorine, crenulate, smooth, not flexuose or slightly flexuose, persistent, distinct to prominent, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Plane or excavate, brownish red, brown, or brownish yellow, 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, 8-10-12 µm wide, basally widened, 20-27-35 µm wide at the base; inspersed with oil droplets. Episamma: Soluble in KOH. Epithecium: Apical cells not swollen, brownish red, insoluble in 10% KOH. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, (13)-13.5-14.5-15.5-(16) µm long, 7-7.7-8.5-(9) µm wide; wall thin, not ornamented.

Secondary Metabolites: Atranorin and usnic acid, of the following substance class(es): orcinol depsides and dibenzofurans [and usnic acids].

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