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 Add this item to the list   831903 Original description
Description type:Original description 
Description:Pileus 10–40 (50) mm wide, glanduliform or (sub)conical when young, later subconical and then expanded, young basidiomata with low or rather explicit (sub)acute umbo, later with prominent mostly acute umbo, margin at first incurved or decurved, later straight or even flexuously uplifted, and then pileus depressed around the centre; young basidiomata with a faint arachnoid layer of a radially scattered velipellis, somewhat persistent at the centre, and sometimes pending from the margin of the pileus or remaining as whitish rim at the border; colour when young dull yellow to bright yellow, later amber-yellow, ochraceous, dull ochraceous or pale brownish with olive hue (Mu 10YR 7/6–7/8, 6/6–6/8 or 5/6–5/8), at the centre sometimes a little greyish, because of faint moist remnants of the velipellis, and older basidiomata with colour contrast: darker brownish at the centre and ochraceous outwards; surface at first smooth and glabrous, sometimes almost shiny, older basidiomata becoming faintly radially rimulose, with slightly and finely diverging fibres, sometimes with finely verrucose centre and seldom with somewhat torn surface towards the margin, and then radially lacerate fibres; no remnants of a cortina observed; cap surface slightly lubricous and sticky when moist and therefore sometimes with adhering particles of soil, margin occasionally deeply torn. Lamellae subdistant to moderately crowded (ca. 40–50, l = 1–3), almost free to adnexed, (sub)ventricose, at first whitish, later beige with olive hue to pale greyish ochre, ochraceous, greyish-brownish or brownish, sometimes with faint pinkish tinge; edge smooth to finely fimbriate, whitish to concolorous. Stipe 30–100 × 3–6 mm, cylindrical, occasionally curved or twisted, near the base often strongly bent, base always stuck deep in the ground, thickened to subbulbous, seldom with small submarginate bulb, beige, pale yellowish, yellowish, pale ochraceous, older basidiomata towards the base faintly brownish; pruinose on the entire length of the stipe. Context whitish to pale yellowish in the pileus, beige in the stipe, but more brownish towards the base of the stipe. Smell subnull. Colour of exsiccata: pileus dingy nut-brownish, light brown, greyish brown (Mu 10YR 4/3–4/6, 7.5YR 5/4–5/6, 4/4–4/6), lamellae and stipe concolorous or a little lighter in colour, in some basidiomata the stipe turns brownish to sometimes almost blackish, when lying a longer time, but young basidiomata did not darken or blacken with drying. Spores 9.2–13.6 µm (av. 11.3 µm, SD 0.9 µm) × 7.0–10.9 µm (av. 8.7 µm, SD 0.8 µm); Q = 1.0–1.6 (av. 1.3, SD 0.7) (n = 240 of 6 coll.), nodulose, sometimes (sub)isodiametric, and then star-shaped, with 7–12 often irregularly, but strongly protruding nodules with obtuse apex. Basidia 25–38 × 7–13 µm, generally 4-spored, but occasionally also 2-spored, sometimes somewhat yellowish guttulate at maturity. Lamella edge sterile, composed of cheilocystidia and rather few (sub)clavate thin-walled paracystidia. Pleurocystidia 47–89 µm (av. 66 µm, SD 8.1 µm) × 14–28 µm (av. 20 µm, SD 2.8 µm); Q = 2.1–5.1 (av. 3.4, SD 0.7) (n = 90 of 6 coll.), mostly ventricose (sub)lageniform, also ventricose (sub)utriform, seldom subcylindrical or ventricose, (sub)clavate, often with long, clearly demarcated, sometimes tapering neck, at the apex generally wide, apex usually crystalliferous, with only short or without pedicel and/or with rounded base, occasionally filled with yellowish amorphous content, walls (0.5) 1.0 (bulge)–1.5 (2.5) µm (neck) thick, pale yellow with 3% KOH. Cheilocystidia similar in appearance and size, but more variable in shape. Pileipellis constituted by an epicutis made up of parallel hyphae 4–12 µm wide, with finely encrusting and parietal ochraceous brownish pigment, subcutis with wider and paler to colourless elements, up to 20 µm wide, with scarse vesiculose oleiferous hyphae, epicutis in young basidiomata sometimes covered with thin hyaline hyphae, with scattered free ends (belonging to velipellis remnants). Caulocystidia metuloid caulocystidia on the entire length of the stipe, 50–90 × 10–25 µm, (sub)lageniform, subcylindrical or (sub)utriform, or deformed with sometimes slightly tapering neck, apex usually crystalliferous, walls 0.5 (bulge)–1.5 (2.0) µm (neck) thick, pale yellow with 3% KOH; intermixed with hyphoid elements and abundant, differently shaped cauloparacystidia. Clamp-connections abundant in all tissues. 
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