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Page number:129 
Description type:Non-original description 
Description:Entoloma sericeum (Bull. -) Quél., Ném. Soc. Emul. Montbéliard, sér. lI, 5: 119. 1872 (Champ. Jura Vosges l).
Agaricus sericeus Bull., Herb. France: pl. 413, fig. 2. 1789, non A. sericeus Schaeff., 1774; Rhodophyllus sericeus (Bull. ? Quél.) Quél., Enchir. Fung.: 59. 1886; Nolanea .sericea (Bull. ? Quél.) P.D. Orton in Trans. Br. mycol. Soc. 43: 179. 1960. - Rhodophyllus sericeus var. typicus Kühn. & Romagn., Fl. anal. Champ. sup.: 193. 19.53 (not valid, incorrect epithet). - Rhodophyllus sericeus var. nolantformis Kühner in Kühn. & Romagn. in Rev. Mycol. 19: 9. 1954 (Compl. Fl. anal. 1); Entoloma sericeum f. nolaniforme (Kühner) Noordel. in Persoonia 10: 480. 1980.
Vern. name. - Bruine satijnzwam.
blz 129
var. sericeum - Fig. 109.
Sel. icon. - Arnolds & Noordel. in Fung. rar. Ic. col. 12: pl. 92a. 1981; J.Lange in Fl. agar. dan. 2: pl. 76G, Gl. 1937; Dähncke & Dähncke, 700 Pilze: 253. 1979.
Sel. descr. & figs. - Arnolds & Noordel. in Fung. rar. Ic. col. 12: 15-16, fig. 12. 1981; Einh. in Ber. bayer. bot. Ges. 41: 107, fig. 19. 1969; Noordel. in Persoonia 10: 478-482, figs. 22, 23. 1980.
Pileus 12-75 mm, conical then conico-convex, expanding to convex, finally applanate, usually slightly depressed or blunt, rarely with acute pailla, with margin involute at first, then straight, strongly hygrophanous, when moist dark sepia, brown or reddish brown (Mu. 10 YR 2-4/1-3; 7.5 YR 3-4/2; 5 YR 3/2-3), paler towards margin (10 YR 5/2-4, 6-7/4; 7.5 YR 4-6/2-4), translucently striate up to half the radius in f. sericeum, translucently striate up to centre in f. nolaniformis, strongly pallescent on drying to pale sepia-brown, ochraceous brown, or greyish brown (10 YR 4/3, 5-7/4; 2.5 Y 7/2; 5 Y 7/3), glabrous or minutely radially fibrillose or rugulose, shiny. Lamellae, L = 22-50, I = 3-7, crowded to moderately distant, adnate-emarginate to deeply emarginate or almost free, segmentiform to ventricose, pale or pale grey-brown at first then pink, finally reddish brown (10 YR 7-6/3; 7.5 YR 6-5/2-4; 5 YR 5/3) with irregular, concolorous edge. Stipe 13-75 x 2-6 mm, cylindrical or compressed, about as long as diameter of pileus in f. sericeum, much longer in f. nolaniforme, grey-brown or yellow-brown, almost concolorous with pileus or paler, strongly silvery striate length- wise with loose fibrils, rarely glabrescent or almost glabrous with only a few, scattered fibrils, at apex sometimes pruinose, white tomentose at base. Context concolorous with surface, in fleshy specimens pallid in inner part, rather fragile in pileus, more or less firm in stipe. Smell strongly farinaceous to rancid. Taste farinaceous-rancid.
Spores (7.0-) 7.5-10.5 x 6.5-8.5 (-9.5) µm, Q = 1.0-1.25, Q av.= 1.1, subisodiametrical, 5-angled in side-view with pronounced angles. Basidia 24-45 x 10.5-12.5(-17.5) tm, 4-spored, clamped. Lamella edge fertile. Cystidia absent. Pileipellis a cutis of 2.5-12 µm wide, cylindrical hyphae. Pigment incrusted in pileipellis and pileitrama. Clamp- connections numerous in hymenium.
Habitat. & distr. - Usually gregarious in grassland, both in poorly manured, (semi)natural grassland and in manured meadows, on dry to wet, acid or basic soils. Wide-spread in Europe. Jan.-Dec.
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