Marasmiellus carneopallidus (Pouzar) Singer

Diagnosis original
Pileus 10–30(40) mm broad, hemispherical, then convex to al-most applanate, sometimes slightly depressed at centre, smooth, glabrous, hygrophanous, translucently striate at margin when moist, crenulate, white (7.5YR 8/1, WHITE PAGE N 9.5), pinkish white (7.5YR 8/2), flesh-coloured, pink (7.5YR 8/4) to ochre or very pale brown (10YR 8/3, 10YR 8/4), darker at centre, white (WHITE PAGE N 9.5) on drying. Lamellae distant, adnate, ventricose, thick, up to 5 mm high, whitish, cream, very pale yellow (WHITE PAGE 2.5Y_/2 9.5/); edge entire and concolorous; lamellulae present. Stipe 15–40 × 1–3(5) mm, central, cylindrical, slightly broadened upwards, straight or curved, tough, (sub)concolorous with pileus at apex, brown, pinkish grey (7.5R 7/1), reddish grey (7.5R 5/1, 7.5R 6/1) downwards, pruinose, pulverulent, inserted on roots or stems of grasses, herbs and shrubsContext thin-fleshed at margin, thicker in the pileus centre, concolorous with surface in pileus, darker in stipe base. Smell difficult to define, reminding of al- monds. Taste mild. Basidiospores of the first collection (7.2)8.0–9.8(10) × (4.2)4.4–5.2(5.4) μm, Q = (1.6)1.66–2.0(2.1) (other values of descriptive and inferential statistics are specified in Tab. 1); of the second collection (8.2)8.22–10.5(11) × (4.2)4.4–5.1(6) μm, Q = (1.7)1.8–2.2(2.3) (other values of descriptive and inferential statistics are specified in Tab. 2); ellipsoid to almost oblong (Fig. 3), smooth, thin-walled, non- dextrinoid, inamyloid. Basidia 34–50 × 7–9 μm, 4-spored, sometimes 2-spored, clavate, often clamped; sterigmata 5–7 μm long. Cheilocystidia 15–30 × 6–15 μm, polymorphic, clavate to cylindrical-sinuous, thin-walled. Pleurocystidia absent. Caulocystidia 35–85 × 8–15 μm, abundant, in clusters, polymorphic, clavate, subcylindrical, often irregular, lobate or with projections, thick-walled (Fig. 4). Pileipellis a cutis of cylindrical hyphae with clavate or coralloid, up to 15 μm wide terminal elements (Fig. 5). Clamps numerous. P h e n o l o g y: June and October.