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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. Taxonomic rank: species. Lecanora. Lecanoraceae Körb. (1855).

Taxonomic Literature: Leuckert, C. & Poelt, J., Nova Hedwigia 49: 121-167 [162-163] (1989).

Thallus: Rimose or areolate (primarily areolate), bullate; separate thallus parts thin or thick. Thallus Outline: Lobed or arachnoid; white. Upper Surface: Verrucose or verruculose, lemon (citrine) or pale green, matt or glossy (shiny), smooth or rough; epruinose; not sorediate.

Ascocarps: Strongly constricted at the base. Margin: Lecanorine, verruculose, smooth, not flexuose, excluded, indistinct to distinct, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Weakly convex, brown, pruina abundant. Parathecium (proper excipulum): White, dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals small, not dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, distinctly developed, eucortical, 15-20-25 µm wide, basally widened, 20-35-50 µm wide at the base; inspersed with oil droplets. Episamma: Soluble in KOH. Epithecium: Apical cells slightly swollen, hyaline or dark brown, soluble in 10% KOH. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, (9)-9.5-11.5-13.5-(14) µm long, 6-6.8-7.5-(8) µm wide; wall thin, not ornamented.

Secondary Metabolites: Arthothelin (2,4,5-trichloronorlichexanthone), atranorin, sordidone, and roccellic acid, of the following substance class(es): orcinol depsides, xanthones, chromones, and (higher) aliphatic acids.

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