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Lecanora epirhoda Vain.

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: Elix, J.A. & Lumbsch, H.T., Mycotaxon 59: 309-317 [312] (1996).

Biogeography: Continent: Southern America.

Ecology: Corticolous.

Thallus: Not subdivided parts, granular; separate thallus parts thin or thick. Thallus Outline: Indistinct; soon disappearing. Upper Surface: Pale grey, matt, smooth; epruinose; not sorediate.

Upper Cortex: Gelatinized.

Ascocarps: Not constricted or strongly constricted at the base. Margin: Lecanorine, crenulate, smooth, slightly flexuose, persistent, indistinct to prominent, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Plane or excavate, brownish red or brown, epruinose. Parathecium (proper excipulum): White, dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals small, abundant, dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, indistinct, eucortical, (20)-25-30-35-(40) µm wide, not basally widened, (20)-25-30-35-(40) µm wide at the base. Episamma: Without episamma. Epithecium: Apical cells not swollen or slightly swollen, brownish red or dark brown, insoluble in 10% KOH. Hymenium: Not inspers or inspersed with crystals. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid, (13)-15-19-22 µm long, (6)-7-9-11 µm wide; wall thin or thick, distinctly differentiated into primary and secondary wall, not ornamented.

Secondary Metabolites: 2'-O-methylperlatolic acid and atranorin, of the following substance class(es): orcinol depsides.

Spot Tests: Upper surface: C –, PD –.

(report generated 04.Okt.2007)


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