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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 [86-87] (1994).

Thallus: Not subdivided parts, areolate (primarily areolate); separate thallus parts thin. Thallus Outline: Indistinct; soon disappearing. Upper Surface: Verrucose or verruculose, lemon (citrine), lime green, or pale grey, matt, smooth; epruinose; not sorediate.

Ascocarps: Soon sessile. Margin: Lecanorine, verrucose or verruculose, smooth, not flexuose, persistent, indistinct to prominent, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Plane, grey-brown, pruina scarce or abundant. Parathecium (proper excipulum): White, not inspersed with crystals. Amphithecium (thalline excipulum): Present; crystals small, abundant, dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, distinctly developed, eucortical, (10)-15-17.5-20-(23) µm wide, basally widened, 20-30-40-(45) µm wide at the base; inspersed with oil droplets. Episamma: Soluble in KOH. Epithecium: Apical cells slightly swollen, hyaline or brownish red, soluble in 10% KOH. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, broadly ellipsoid, (8)-8.5-10.5-12.5-(13) µm long, (5)-5.5-6.5-7.5-(8) µm wide; wall thin, not ornamented.

Secondary Metabolites: 2,5,7-trichloro-3-O-methylnorlichexanthone, atranorin, arthothelin (2,4,5-trichloronorlichexanthone), asemone (= 4,5,7-trichloronorlichexanthone), and isoarthothelin (= 2,5,7-trichloronorlichexanthone), of the following substance class(es): orcinol depsides and xanthones.

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