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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: Miywaki, H., J. Hattori Bot. Lab. 64: 271-326 [295-296] (1988); Elix, J.A. & Lumbsch, H.T., Mycotaxon 59: 309-317 [313-314] (1996).

Thallus: Not subdivided parts, rimose or areolate (primarily areolate); separate thallus parts thin or thick. Thallus Outline: Indistinct; soon disappearing; white. Upper Surface: Verruculose, pale green or grey, matt, smooth; epruinose; not sorediate.

Ascocarps: Soon sessile, not constricted at the base. Margin: Lecanorine, verruculose, smooth, not flexuose or slightly flexuose, persistent or excluded, 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. Parathecium (proper excipulum): White, not inspersed with crystals. Amphithecium (thalline excipulum): Present; crystals small, not dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, indistinct, eucortical, 10-12.5-15 µm wide, not basally widened, 10-15-20 µm wide at the base; inspersed with oil droplets. Episamma: Soluble in KOH. Epithecium: Apical cells slightly swollen, hyaline. Hymenium: Not inspers. Hypothecium: White or brownish yellow; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, 10-11.5-13 µm long, (5.5)-5.8-6-8 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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