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Family: EntolomataceaeGenus: Entoloma
A robust, light-blue to neon-blue (fading to light grey) coloured mushroom with cream to pink gills.
Cap: 30-80 mm, conical at first, expanding to plano-convex with low, broad umbo (central raised area), with margin first involute then deflexed, light to neon-blue in colour, fading to light grey with age, innately radially fibrillose. Gills: moderately crowded, adnate-decurrent, white then rather purely pink with irregularly serrulate, concolorous edge. Stem: 40-90 x 10-20 mm, cylindrical, blue-violaceous, at least in upper 3/4, basal part white or with faint yellow tinge, innately fibrillose. Context: medium thick, white. Smell and taste floury. Spores: 5.9-7.6 x 5.8-7.5 μm, average 6.8 x 6.7 μm, Q = 1.01.2, Qav = 1.03, thin-walled, with 6-8 angled in side view, thin wall. Basidia: 33-48 x 8.5-10.5 μm, clavate, clamped, 2-4 spored. Pileipellis: a very gelatinous ixocutis at centre, with some ascending hyphae forming a transition to an ixotrichoderm, made of cylindrical hyphae with elements ranging 30-116 x 2-8 μm, with hyaline bluish diffuse pigment; in the middle of the radius an ixocutis with transitions to an ixotrichoderm, hyphae ranging 30-65 x 3–6.5 μm, with pale blue, intracellular diffuse pigment; subpellis differentiated, made up of elongated, inflated elements, ranging 20-72 x 11-28 μm, with bluish and brownish diffuse intracellular pigment.