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 Add this item to the list  804544 Original description
   
Description type:Original description 
Description:Pileus 10–39 mm diam., convex to irregularly infundibuliform, center depressed to deeply depressed, with acute papilla, central area rugulose, smoother towards the margin but becoming slightly, or sometimes strongly, grooved, sometimes concentrical wrinkles present near margin, margin smooth to faintly crenate; surface dry, smooth; warm brown (7E6–8), in central area often darker, up to almost liver brown (8F6–8); often translucently striate towards the margin. Lamellae decurrent, distant (5–6 L+l/cm), moderately broad (2–4 mm), whitish pink (6A2, 6B3); edge smooth, concolorous. Stipe 15–25 × 2–5 mm, cylindrical, more or less equal, central to slightly eccentrical; surface dry, smooth, subtomentose; pale brownish pink (7–8C3, but with a slightly more brownish tinges). Context thin in pileus, solid to stuffed in stipe; whitish unchanging or locally and very faintly getting a pale yellowish tinge, smell pleasantly sweetish (with a scent like burned sugar); taste mild to slightly bitter, after a while faintly acrid. Latex rather abundant, watery white, color fading when drying on context or lamellae, or sometimes with a hardly noticeable, pale yellowish tinge, latex drying with a clearly visible pale yellow tinge (1A2–3) when isolated on a glass slide. Basidiospores (n=20) 6.1–6.6–7.1(–7.2) × 6.4–7.1–7.8 µm, Q = 1.04–1.08–1.17; globose to subglobose to ellipsoid, ornamentation amyloid, forming an incomplete reticulum, thick and high ridges up to 1.2 µm high, typically with high obtuse warts in between main ridges, sometimes thin lines interconnecting between main ridges; plage inamyloid, sometimes distally amyloid. Basidia abundant, 58–73 × 11–15 µm; generally 4-spored, 2-spored basidia also present, subclavate to irregularly subcylindrical, rather slender, thin-walled, with granular contents; with sterigmata 4–10 × 1.5–2.5 µm. Pleuromacrocystidia scarce to abundant, 67–72 × 13–15 µm; not emergent, subfusiform, with a mucronate apex, thin-walled. Pleuropseudocystidia abundant, 4–6 µm diam., not emergent, cylindrical with an obtuse apex. Lamellae edge fertile, composed of marginal cells, cheilocystidia and some basidia; marginal cells 17–23 × 6–13 µm, subclavate to clavate to broadly clavate; cheilocystidia abundant, 29–44 × 8–10 µm, subcylindrical to subfusiform to lanceolate, with a mucronate apex, thin-walled, not emergent. Hymenophoral trama with abundant lactifers intermixed with rosettes of sphaerocytes. Pileipellis a trichoepithelium, compact layer of globose cells with some terminal elements on top, 60–100 µm thick, terminal elements oblique to parallel cylindrical. Stipitipellis a cutis, terminal elements repent and oblique, cylindric, subpellis composed of compact, parallel and septate hyphae, 3–6 µm diam., thin-walled. 
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