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 Add this item to the list  810561 Original description
Description type:Original description 
Description:Pileus 5–21 mm diam., obtusely conical or conico-convex with a small umbo initially, becoming convex to plano-convex with a small umbo; surface brown (6F6)/(OAC636) initially, becoming dark brown (6F6–7)/(OAC637) on the squamules and fibrils and brownish orange (6C4)/(OAC653) elsewhere, appressed- to slightly recurved-squamulose towards the center, appressed-fibrillose and rimose towards the margin; margin initially incurved, becoming decurved to straight or slightly reflexed with age, finely fissile. Lamellae emarginate, subventricose to ventricose, close, initially off-white, becoming brownish orange (6C3–4)/(OAC653) or light brown (6D4)/(OAC647) or brown (6D7)/(OAC644) with age, up to 4.5 mm deep, with lamellulae of 3 lengths; edges crenulate, slightly paler. Stipe 9–53 × 2–3 mm, central, terete, equal, solid; surface brownish orange (6C4)/(OAC652) initially, becoming brown (6E6–7)/(OAC644), covered with grayish brown floccose-fibrils all over, densely so towards the base, somewhat woolly at the apex; base slightly swollen, whitish, not marginate, with basal mycelium. Cortina present initially, fugacious. Context soft, up to 2.5 mm wide, grayish orange (6B3)/(OAC654). Odor and taste not distinctive.
Basidiospores 9–11 × 8–9.5 (9.7 ± 0.6 × 8.5 ± 0.5) µm, Q = 1.0–1.3, Qm = 1.1, nodulose, with 6–7 or rarely 9 saddle-shaped, up to 2 µm long projections in profile, slightly thick-walled, pale yellowish brown. Basidia 28–37 × 8–14 µm, 4-spored, occasionally filled with pigmented contents and collapsed (necrobasidia). Pleurocystidia metuloidal, 53–66 × 19–24 µm, utriform or fusiform with a short stalk, wall up to 4 µm thick, hyaline; apices crystalliferous. Lamella edge sterile, with clusters of paracystidia mixed with scattered metuloidal cheilocystidia. Metuloidal cheilocystidia 39–71 × 18–27 µm, versiform: fusiform, ampulliform, ovoid, utriform, clavate, pyriform or obclavate, wall 2–4 µm thick towards the apex, hyaline; apices often muricate with crystalloid deposits. Paracystidia 11–79 × 8–39 µm, versiform: globose, ellipsoid, flexuose, clavate, spheropedunculate, obpyriform, fusiform, ovoid, cylindrical or cylindrical with a median constriction, wall up to 1 µm thick, hyaline, with some refractive contents, occasionally faintly encrusted. Pileipellis a disrupted cutis with ascending trichodermal patches; hyphae 5–25 µm diam., with dense, yellowish brown, spiral encrustations, slightly thick-walled. Stipitipellis a disrupted cutis with loose, ascending trichodermal patches; hyphae 5–20 µm diam., with dense, pale yellowish brown, spiral encrustations, thin- to slightly thick-walled. Caulocystidia absent. Clamp connections present.
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