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Page number:113 
Remarks (internal):Entoloma dysthales can be distinguished from the closely related species E. dysthaloides and E. hirtum by its large spores with average length exceeding 15 µm. 
Description type:Non-original description 
Description:Entoloma dysthales (Peck) Sacc.. Syll. Fung. 9: 83. 1891. - Fig. 82.
Agaricus dysthales Peck in Ann. Rep. N.Y. State Mus. 32: 28. 1879; Nolanea dysthales (Peck) Murrill, N.Amer. Fl. 10: 101. 1917; Rhodo- phyllus dysthales (Peck) Romagn. in Bull. trimest. Soc. mycol. Fr. 53: 328. 1937; Leptonia dysthales (Peck) Konr. & Ivi., Agaricales 2: 184. 1952; Pouzarella dysthales (Peck) Mazzer, Monogr. Stud. Gen. Pouza- rella: 105. 1976. - Inocybe bucknallii Mass. in Ann. Bot. 18: 473. 1904; Asterosporina bucknallii (Mass.) Rea, Brit. Basidiomyc.: 213. 1922.
Misappl. - Nolanea babingtonii sensu Dennis in Trans. Br. mycol. Soc. 31: 206. 1948; Leptonia babingtonii sensu PD. Orton in Trans. Br. mycol. Soc. 43: 177 . 1960.
Sel. descr. & figs. - R. Heim, Genre Inocybe: 360. 1931 (as I. bucknallii); Mos. in Persoonia 7: 283. 1973; Mazzer, Monogr. Stud. Gen. Pouzarella: 105, figs. 27, 31, 35, 53-57. 1976; Noordel. in Persoonia 10: 215-219, figs. 7-12. 1979.
Vern. name. - Vloksteelsatijnzwam.
Pileus (2-) 6-18 mm, conico-campanulate or hemispherical, expanding to conico-convex, rarely plano-convex and then with small papilla, with straight margin, with undulating marginal zone with age, weakly hygrophanous, when moist blackish grey or sepia brown (Mu. 10 YR 3/l- 3/2), slightly paler at margin, translucently striate up to half of radius, on drying slightly pallescent to grey-brown, centre remaining darker, when young with silvery hyaline hairs which turn brown with age, later on with fine, pointed squamules, at margin fringed and sometimes rimose, sometimes entirely minutely squamulose. Lamellae. L = 10-17, I= 1-3, distant to moderately crowded, narrowly adnate or emarginate, narrowly segmentiform at first, then ventricose, sometimes transvenose, dark grey to grey-brown. finally with pink tinge (7.5 YR 3/2, 4/2) with flocculose, slightly paler edge. Stipe 12-48 x 0.3-2 mm, filiform to cylindrical. sometimes slightly broadened at base. concolorous with pileus (10 YR 3/2), longitudinally silvery-striate, sparsely to densely flocculose to subsquamulose with pale to dark brown hairs, especially in basal half; at base strigose with long, radiating, pale yellow-brown hairs, solid or narrowly fistulose. Context thin in pileus, relatively firm. concolorous with surface. Smell indistinct. Taste mild.
Spores (13.5-) 14.0-19.5 (-21.5) x (7.5-) 8.0-10.5 (-11.0) µm, Q = (1.5-) 1.6-2.1, Qav = 1.8. irregularly nodulose-angular in outline with slightly thickened. brownish wall. Basidia 33-62 x 11-20 µm. 4-spored, clampless. Lamella edge sterile. Cheilocystidia (17-)21-82(-90) x 8-21 µm, subglobose, obpyriform to narrowly or broadly clavate, sometimes in chains of 2-3 cells, with rounded or conical apex, rarely with finger-like projection at apex, with brown, sometimes incrusted wall. Pileipellis a transition between a cutis and a trichoderm, made up of septate hairs, with elements 32-200 µm long, 10-35 µm wide at base, 9-12 µm wide at apex. Stipitipellis a cutis of cylindrical, 4-17 µm wide, hyphae, with at apex of stipe 10-2 septate, inflated to cylindrical hairs with elements 20-55 x 10-33 µm. in basal part with longer. multiseptate hairs, often in bundles, and similar to hairs on pileus, with elements 25-70(-110) µm long, 27.5-30 µm wide at base, 5-12 km wide at apex. Pigment coarsely incrusting in all parts of pileipellis, pileitrama and hymenophoral trama. Clamp-connections absent from all tissues.
Habitat & distr. - In small groups, terrestrial in damp forests of Alnus, and/or Fraxinus, once found in moist dune-meadow with Salix repens. Rare. Wide-spread, known to occur in Europe and N.America. June-Nov.
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