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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: basionymous or accepted. Taxonomic rank: species. Lecanora. Lecanoraceae Körb. (1855).

Taxonomic Literature: Lumbsch, H.T., J. Hattori Bot. Lab. 77: 1-175 [121-124] (1994).

Thallus: Areolate (primarily areolate), subsquamulose; separate thallus parts thin or thick. Thallus Outline: Lobed; indistinct; soon disappearing. Upper Surface: Verrucose or verruculose, pale grey or grey, matt, smooth; epruinose; not sorediate.

Ascocarps: Soon sessile, not constricted or strongly constricted at the base. Margin: Lecanorine, smooth, slightly flexuose, persistent, distinct to prominent, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Plane, dark brown or grey-brown, pruina scarce. Parathecium (proper excipulum): White, not inspersed with crystals. Amphithecium (thalline excipulum): Present; crystals small, abundant, dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, indistinct, eucortical, 30-40-50 µm wide, basally widened, (40)-45-60-75-(80) µm wide at the base; inspersed with oil droplets. Episamma: Soluble in KOH. Epithecium: Apical cells slightly swollen, brownish red or dark brown, insoluble in 10% KOH. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, (11)-11.5-13.5-15.5-(16) µm long, (5)-5.5-7-8.5-(9) µm wide; wall thin, not ornamented.

Pycnidia: Cerebriform. Conidiophores: Vobis-type II. Conidia: Filiform; 15-16.5-18 µm long.

Secondary Metabolites: 2,5,7-trichloro-3-O-methylnorlichexanthone, atranorin, asemone (= 4,5,7-trichloronorlichexanthone), and thiophanic acid (= 2,4,5,7-tetrachloronorlichexanthone), of the following substance class(es): orcinol depsides and xanthones.

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