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Lecanora viriduloflava de Lesd.

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: Brodo, I.M., Beih. Nova Hedwigia 79: 63-169 [163] (1984).

Biogeography: Continent: Northern America.

Ecology: Corticolous.

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

Upper Cortex: Gelatinized.

Ascocarps: Soon sessile, not constricted at the base. Margin: Lecanorine, verrucose or verruculose, smooth, not flexuose or slightly flexuose, persistent, prominent, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Plane, brownish yellow, pruina scarce or abundant. Parathecium (proper excipulum): White, dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals small, not dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, distinctly developed, eucortical, 15-20-25-(30) µm wide, not basally widened, 15-25-35 µm wide at the base; inspersed with oil droplets. Episamma: Soluble in KOH. Epithecium: Apical cells not swollen, hyaline. Hymenium: Not inspers. Hypothecium: White; not inspers.

Ascospores: c. 8 per ascus, ellipsoid or broadly ellipsoid, 9.5-11.5-13-(13.5) µm long, (5.5)-6-7-8.5 µm wide; wall thin, not ornamented.

Secondary Metabolites: Atranorin and gangaleoidin, of the following substance class(es): orcinol depsides and orcinol depsidones.

Spot Tests: Upper surface: C –, PD –.

(report generated 04.Okt.2007)


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