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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.: 1-175 [83-86] (1994).

Biogeography: Continent: Africa, Asia-Temperate, Australasia, Europe, Northern America, and Southern America.

Thallus: Rimose or areolate (primarily areolate); separate thallus parts thin. Thallus Outline: Indistinct; soon disappearing; white. Upper Surface: Verruculose, lemon (citrine) or pale grey, matt, smooth; epruinose; not sorediate.

Ascocarps: Soon sessile. Margin: Lecanorine, smooth, not flexuose, persistent, indistinct to prominent, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Plane, brownish red, epruinose. 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, 15-20-20-(25) µm wide, basally widened, 20-45-65 µm wide at the base; inspersed with oil droplets. Episamma: Without episamma. Epithecium: Apical cells slightly swollen or distinctly swollen, brownish red, insoluble in 10% KOH. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, 9.5-12.5-15-(15.5) µm long, (5)-5.5-7-8 µm wide; wall thin, not ornamented.

Secondary Metabolites: Atranorin, of the following substance class(es): orcinol depsides and (tri-)terpenoids.

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