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Lecanora cenisioides Lumbsch

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: Lumbsch, H.T., J. Hattori Bot. Lab. 77: 1-175 [76] (1994).

Biogeography: Continent: Australasia.

Ecology: Substrate non-calciferous.

Thallus: Areolate (primarily areolate); separate thallus parts thin or thick. Thallus Outline: Zonate; soon disappearing; white. Upper Surface: Verrucose or verruculose, lemon (citrine), matt, smooth; epruinose; not sorediate.

Upper Cortex: Gelatinized.

Ascocarps: Soon sessile, not constricted or strongly constricted at the base. Margin: Lecanorine, smooth, not flexuose, persistent, indistinct to prominent, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Plane, brownish yellow, epruinose, pruina scarce. Parathecium (proper excipulum): White, not dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, distinctly developed, eucortical, (10)-15-15-20 µm wide, basally widened, 15-20-25 µm wide at the base. 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, oblong, (10)-10.5-11.5-13 µm long, (5)-5.5-6.5-7.5 µm wide; wall thin, 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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