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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: Elix, J.A., Lumbsch, H.T., Mycotaxon 59: 309-317 [315] (1996).

Thallus: Rimose; separate thallus parts thin. Thallus Outline: Indistinct; white. Upper Surface: Verruculose, lemon (citrine) or orange, matt, smooth; epruinose; not sorediate.

Ascocarps: Soon sessile. Margin: Lecanorine, crenulate, 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 to weakly convex, brownish yellow, epruinose, pruina scarce. Parathecium (proper excipulum): White or lemon (citrine), dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals small, not dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, distinctly developed, eucortical, 20-27-35 µm wide, not basally widened, 20-30-40 µm wide at the base; inspersed with oil droplets. Episamma: Soluble in KOH. Epithecium: Apical cells not swollen or slightly swollen, hyaline or brownish red, soluble in 10% KOH. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, 10-11.5-13 µm long, 5-6-7 µm wide; wall thin, not ornamented.

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

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