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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).

Taxonomic Literature: Lumbsch, H.T., J. Hattori Bot. Lab. 77: 1-175 [71-72] (1994).

Thallus: Rimose or areolate (primarily areolate); separate thallus parts thin or thick. 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, brownish yellow, epruinose. Parathecium (proper excipulum): White, not dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals small, not dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, distinctly developed, eucortical, (20)-25-30-35 µm wide, basally widened, (25)-30-35-40 µm wide at the base; inspersed with oil droplets. Episamma: Soluble in KOH. Epithecium: Apical cells slightly swollen, hyaline, brownish red, or dark brown, soluble in 10% KOH. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, (10.5)-11-13.5-15.5 µm long, 6.5-8-9-(9.5) µm wide; wall thin, not ornamented.

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

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