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 Add this item to the list  822948 Original description
Description type:Original description 
Description:Basidioma annual, effuse, with appressed margin, loosely adnate, sometimes upraisedin the margin when old, brittle when dry, initially orbicular, confluent afterwards, up to 5 cm broad. Hymenophore smooth, initially even, minutely cracked in aged basidiomata, cinnamon brown (6C8, 6D8) (Kornerup & Wanscher 1978). Margin appressed, slightly fimbriate and yellowish brown (5B7) in young basidiomata, smooth and concolorous with the hymenophore in older basidiomata. Section 60–130 μm, not stratified, composed of the hymenium and the context. Basidia claviform, 4-spored, clampless, the lower two thirds embedded in a resinous brown matter, 18–25 × 4–5.5 μm. Basidiospores ellipsoid in side view, thin-walled, smooth, hyaline, sometimes brown, multiguttulate, non-amyloid, 5.5–7 × 3–4 μm (Lm = 6.1–6.5; Wm = 3.5–3.8; Qm = 1.7–1.8). Setae abundant, arising from the subhymenium or the upper part of the context, projecting up to 50 µm over the hymenium, subulate, dark brown, thick-walled (up to 3 µm), smooth, rarely with a few hyphae forming a sheath, sometimes gibbose at the base, often with a bifurcate or trifurcate base, (30–)69–87(–100) × 6.5–9(–10) μm. Context formed by interwoven generative hyphae, cylindrical, moderately thick-walled, often branched at a right angle, golden brown, clampless, 2.5–4 µm in diam. Basal layer of vaguely parallel-arranged hyphae observed in aged basidiomata. Crystals sometimes present on the subhymnial and context hyphae, bipyramidal to sphaeroid, 2–3 µm in diam. 
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