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Lecanora fuscococcinea Nyl.

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 [312] (1996).

Biogeography: Continent: Africa.

Ecology: Corticolous.

Thallus: Areolate (primarily areolate); separate thallus parts thin. Thallus Outline: Indistinct; soon disappearing. Upper Surface: Verruculose, pale grey, matt, smooth; epruinose; not sorediate.

Ascocarps: Soon sessile. Margin: Lecanorine, verruculose or 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, brownish red or brown, epruinose. Parathecium (proper excipulum): White, not dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals small, not dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, distinctly developed, eucortical, (14)-15-17.5-20 µm wide, not basally widened, (14)-15-20-25 µm wide at the base; inspersed with oil droplets. Episamma: Without episamma. Epithecium: Apical cells slightly swollen, brownish red, insoluble in 10% KOH. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid or oblong, (10)-12-13.5-15-(17) µm long, (5)-6-7-8.5-(9) µm wide; wall thin, not ornamented.

Secondary Metabolites: Atranorin and hopane-6a,22-diol, of the following substance class(es): orcinol depsides and (tri-)terpenoids.

Spot Tests: Upper surface: C –, PD –.

(report generated 04.Okt.2007)


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