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Lecanora salicicola H. Magn.
Family: Lecanoraceae
Lecanora salicicola image
Ecology: Lignicolous or corticolous. Thallus: Not subdivided parts; separate thallus parts thin. Thallus Outline: Indistinct; soon disappearing. Upper Surface: Lemon (citrine) or pale grey, matt, smooth or rough; epruinose; not sorediate. Upper Cortex: Gelatinized. Ascocarps: Soon sessile. Margin: Lecanorine, verruculose, smooth, not flexuose, persistent or excluded, indistinct to prominent, concolourous with the surrounding thallus; without a thin rim between disk and thalline margin. Disk: Plane, brownish red or brownish yellow, epruinose. Parathecium (proper excipulum): White, dissolving in 10% KOH. Amphithecium (thalline excipulum): Present; crystals dissolving in 10% KOH; photobiont abundant. Amphithecial Cortex: Present, distinctly developed, eucortical, (15)-20-20-25 µm wide, not basally widened, 20-25-35 µm wide at the base; inspersed with oil droplets. 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, ellipsoid or oblong, 11-15.5-18.5 µm long, 4.5-6-7.5-(8) µm wide; wall thin, not ornamented. Secondary Metabolites: Atranorin and roccellic acid, of the following substance class(es): orcinol depsides and (higher) aliphatic acids. Spot Tests: Upper surface: C –, PD –.