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Page number:531 
Remarks (internal):Entoloma mutabilipes belongs to stirps Asprellum on account of the strongly striate subglabrous pileus and blue-grey, polished stipe. It differs from all known taxa in this group in the tender pinkish yellow-grey colour of the pileus, in combination with a sterile lamella edge.
 
Description type:- 
Description:Entoloma mutabilipes Noordel. & Liiv in Persoonia 15(1): 30. 1992. (tav. 61, fig. 242)
Pileus 10-20 mm broad, convex to plano-convex, umbilicate, with deflexed or straight, crenate margin, hygrophanous, when moist translucently striate up to three-quart of the radius, pale beige with slight pink tinge with darker, grey-brown centre (calotte), pallescent to pale grey with darker centre, almost glabrous at margin, at centre minutely squamulose. Lamellae almost free, ventricose, white then almost purely pink with concolorous, entire edge. Stipe 30-45 x 1-2 mm, cylindrical, sky-blue when young, soon becoming pale grey, smooth, polished, base white tomentose. Context pallid. Smell and taste indistinct.
Spores 9.0-12.0 x 7.5-9.5 µm, average 10.6 x 7.9 µm, Q = 1.1-1.3-1.5, heterodiametrical, 5­8-angled in side-view. Basidia 23-40 x 7.5-12 µm, 4-spored, clampless. Lamella edge usually entirely sterile, sometimes heterogeneous, with dense clusters of cystidia mixed among fertile basidia. Cheilocystidia 24-70 x 6-15 µm, cylindrical to clavate. Hymenophoral trama regular, made up of cylindrical to inflated hyphae, elements 110-300 x 4-20 µm. Pileipellis a cutis of cylindrical, 4-15 µm wide hyphae with scattered trichodermal tufts of ascending, clavate terminal elements, 20-70 x 12-22 µm. Pigment brownish, intracellular in pileipellis. Brilliant granules and oily guttules very abundant in trama. Clamps absent.
Habitat: in large group in grassy spot in deciduous forest; sept.
Distribution: Only known from the type-locality in Estonia.
 
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