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Page number:250 
Remarks (internal):Entoloma favrei is very close to E. minutum, from which it mainly differs by the darker colour of the basidiocarps, and slightly more heterodiametrical spores. The capitate caulocystidia remind of those found in E. tenellum, but that species differs by the lack of clamps in all tissues, including the hymenium, and by having well-differentiated cheilocystidia. 
Description type:Non-original description 
Description:Entoloma favrei Noordel. 1982. (tav. 29c, fig. 110)
Entoloma favrei Noordel. in Int. J. Lich. Mycol. 1: 56. 1982.
Sin.: Leptonia cinerascens Velen., Ceske Houby: 623. 1923 non Entoloma cinerascens Hesl., 1967.
Interpr, err.: Entoloma tenellum sensu Noordel. in Persoonia 10: 470. 1980.
Bibl.: Noordeloos in Persoonia 10: 256, fig. 24. 1979 (type-study); Noordeloos in Persoonia 10: 470-472, fig. 18. 1980 (come Entoloma tenellum); Noordeloos in Int J. Lich. Mycol. 1: 56. 1982; Noordeloos in Bas & al., Fl. agar. neerl., vol. 1: 125, fig. 100. 1987; Noordeloos & Gulden in Can. J. Bot. 67: 1735. 1989; Schmidt-Heckel in Forsch. Ber. Nat. Park Berchtesgaden 8: 137-138. 1985.
Holotypus: J. Velenovsky, July 1919, in colle sicco graminis inter Strancice et Boskov, Cecoslovacchia (PRM, Herb. Velenovsky, bottle 48b).
Pileus 5-15 mm. broad, conico-convex then expanding, usually with a minute papilla, with margin slightly involute at first, later straight, hygrophanous, when moist translucently striate up to the centre, brown-grey to beige-grey, strongly pallescent on drying to sordid beige or almost white, smooth, glabrous, becoming brilliantly shining-fibrillose when dry. Lamellae, L = 10-25, l = 1-5, moderately distant, adnate-emarginate to almost free, broadly ventricose, greyish or brownish then with pink tinge, with entire, concolorous edge. Stipe 20-35 x 0.5-2 mm cylindrical, straight, hyaline, ochraceous-brown to greyish brown, minutely pruinose at apex, downwards polished, shining. Context very thin and brittle. Smell none. Taste mild.
Spores 8.0-12(-14) x 7-9.5 µm, Q= 1.1-1.5, 5-8-angled in side-view. Basidia 4-spored, clamped. Lamella edge fertile. Cystidia absent. Pileipellis a thin cutis of narrow, cylindrical hyphae, 2.5-14 µm wide. Pigment minutely encrusting in upper layers of pileus. Caulocystidia 50-150 x 7-12 x 3-6 µm, cylindrical with capitate head, at apex of stipe only. Clamps present in hymenium, elsewhere rare or lacking. Habitat: in marshy forest, road-sides, among mosses, etc.; in Salix-Betula copses and Alnus stands, in the lowlands and in subalpine Alnus and subarctic Betula stands; summer­
Distribution: Rare, but wide-spread in Europe.

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