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Lecanora rhodi Szatala

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: Dickhäuser, A., Lumbsch, H.T. & Feige, G.B., Mycotaxon 56: 303-323 [314-316] (1995).

Biogeography: Continent: Europe.

Ecology: Substrate non-calciferous.

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

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

Ascospores: c. 8 per ascus, ellipsoid or broadly ellipsoid, 10-12-13.5-(14) µm long, 5-6-7-(7.5) µm wide; wall thin, not ornamented.

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

Spot Tests: Upper surface: C –, PD + orange.

(report generated 04.Okt.2007)


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