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Page number:522 
Remarks (internal):Entoloma asprellum is defined here as a taxon with translucently striate, fibrillose­squamulose, fairly dark red-brown pileus, sordid lamellae, without cheilocystidia. It has often been confused with other species in stirps Asprellum, and therefore records in literature are not always reliable. 
Description type:Non-original description 
Description:Entoloma asprellum (Fr.) Fayod (tav. 60a, fig. 237)
Agaricus asprellus Fr., Syst. mycol. l: 208. 1821; Leptonia asprella (Fr.) Kumm., Führ. Pilzk.: 96. 1871; Rhodophyllus asprellus (Fr.) Quél., Enchir. Fung.: 61. 1886; Hyporrhodius asprellus (Fr.) Schroet in Cohn, KryptogFL. Schles. 614. 1889; Entoloma asprellum (Fr.) Fayod, Ann. Sci. nat. Bot., sér. VII, 9: 383. 1889.
Escl.: Leptonia asprella sensu Bres., Iconogr. mycol. 12, pl. 577, fig. 2. 1929 (= E. poliopus).
Icon.: Cetto, Fungi Vero 6, pl. 2323. 1989; Lange, Fl. agar. dan. 2, pl. 77D. 1937; Ryman & Holm˴sen, Svampar: 382.1984; Vesterholt in Svampe 21, pl. 23.1990.
Bibl.: Lange, Fl. agar. dan. 2: 99. 1937; Noordeloos in Beih. Nova Hedwigia 91: 260-263, fig. 88.1987.
Pileus 10-30 mm, conical to convex, expanding to plano-convex, with involute then deflexed or straight margin, with slightly depressed to distinctly umbilicate centre, weakly hygrophanous, deeply translucently striate up to half the radius, red-brown, paler at margin, slightly pallescent on drying, densely radially fibrillose to subsquamulose at margin, squamulose at centre with minute, adpressed to uplifted squamules. Lamellae, L = 20-30, l = 1-9, moderately crowded, narrowly adnate or deeply emarginate, sometimes with small decurrent tooth, sometimes almost free, segmentiform to ventricose, sordid grey then grey­pink with eroded, concolorous edge. Stipe 20-60 x 1-4 mm, cylindrical or compressed with groove, steel-grey or blue-grey, pruinose at apex, downwards polished, base white tomentose. Context brown in pileus, grey-blue in stipe. Smell indistinct or slightly farinaceous. Taste mild to slightly rancido
Spores 9.0 x 14.0 x 6.0-10.0 µm, Q = 1.2-1.8, average Q = 1.4-1.5, heterodiametrical, 5-8 angled in side-view. Basidia 4-spored, clampless. Lamella edge fertile. Cystidia absent. Pileipellis a cutis with transitions to a trichoderm at margin, a true trichoderm at centre, made up of inflated terminal elements, 20-90 x 10-25 µm. Pigment intracellular in pileipellis. Clamps absent.
Habitat: In moist grassland, subalpine meadows, and dry to moist tundra with grasses and sedges, also amongst dwarf Salix in alpine/arctic conditions, preferably on basic or neutral soil. Summer-Autumn.
Distribution: wide-spread, not uncommon.



 
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