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Page number:94 
Remarks (internal):Entoloma prunuloides is a rare species in the lowlands of north-western Europe occurring in unmanured grasslands. It is probably more com- mon in subalpine meadows in central Europe. Entoloma prunuloides differs from E. eulividum and E. sinuatum in smaller spores and habi- tat.
The description above is partly based on extralimital material.
 
Description type:Non-original description 
Description:Entoloma prunuloides (Fr.: Fr.) Quél. in Mem. Soc. Emul., Montbéliard, ser. II, 5: 117. 1872 (Champ. Jura Vosges 11 ). - Fig. 51.
Agaricus prunuloides Fr.: Fr., Syst. mycol. 1 :198. 1821; Rhodophy!- lus prunuloides (Fr.: Fr.) Quél., Enchir Fung.: 57. 1886. - Entoloma autumnale Velen., Novit. mycol. nov.: 133. 1949.
Misappl. - Rhodophyllus repandus sensu J. Lange, Fl. agar. dan. 2: 95, pl. 73A. 1937.
ExCL. -Rhodophyllus prunuloides sensu Konr. & M., Ic. sel. Fung. 2: pl. 187. 1930 (= E. saepium).
SEL. ICON - Einh. in Ber. bayer. bot. Ges. 41: pl. 11a. 1969; J. Lange, Fl. agar. dan. 2: pl. 73A (as R. repandus); pl. 73B. 1937; Michael, Hennig, Kreisel, Handb. Pilzfr. 3, 3. Aufl.: 203. 1979.
Sel. descr. & figs. - Einh. in Ber. Bayer. bot. Ges. 41: 107, figs 22-24. 1969; Kühner in Bull. trimest. Soc. mycol. Fr. 93: 457-459. 1977; Noordeloos in Persoonia 11:231-232, Figs. 32a,b. 1981.
Vern. name. - Molenaarssatijnzwam.
Pileus 25-70 mm, conico-convex then convex, finally plano-convex usually with low, broad umbo, with slightly involute margin when young, not hygrophanous, not striate, yellowish brown to yellowish grey, relatively pale (Mu. 2.5 Y 8/3-10 YR 8/4) centre slightly darker (towards 10 YR 8/6-8/8, 7/6) slightly viscid when moist, satiny on drying, smooth. Lamellae, L = 45-50, l = 1 -3, moderately distant, thickish, deeply emarginate, ventricose, white then pale pink with irregularly dentate, concolorous edge. Stipe 40-75 x 8-12 mm, cylin- drical usually tapering downwards, white then tinged yellowish-greyish in middle part when old, coarsely fibrose-striate lengthwise, smooth, solid. Context firm, white but brown in cortex of pileus. Smell strongly farinaceous. Taste strongly farinaceous-rancid. Spores 7.0-8.0 (-8.5) x 6.5-8.0 µm, Q =1.0-1.1, Qav =1.05, isodiamet- rical, 5-7-angled in side-view. Basidia 27-45 x 7-13 µm, 4-spored. Lamella edge fertile. Cystidia absent. Pileipellis an ixocutis of 2.5-7.0 µm wide cylindrical hyphae. Pigment pale brown, intracellular in pileipellis. Clamp-connections numerous in all tissues.
Habitat & distr. - Single or in small groups in grassland on calcareous loam. Very rare. Only known from the south of the province of Limburg (Bemelen: Bemelerberg; Wijlre). Aug.-Nov.
 
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