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Literature:
 
Page number:139 
Description type:Non-original description 
Description:Entoloma triste (Velen.) Noordel. in Persoonia 10: 254. 1979. - Fig. 131.
Nolanea tristis Velen., Ceské Houby: 630. 1921.
Sel. descr. - Noordel. in Persoonia 10: 509. 1980.
Pileus 10-20 mm, conical finally expanding to convex with small papilla, hygrophanous, when moist blackish brown, not striate or very obscurely so at margin only, pallescent on drying to moderately dark brown, radially fibrillose, shiny. Lamellae, distant, greyish-ochraceous with pink tinge. Stipe 20 x 1.5 mm, horn brown at apex, darker towards base, paler than pileus, white tomentose at base. Smell absent. Taste not known.
Spores 10.5-12.0(-14.0) x (7.0-) 7.5-9.0 µm, Q = 1.2-1.6, Q av. = 1.35, 6-8-angled in side-view. Basidia 25-38 x 12.5-14.5 µm, 4-spored, clamped. Lamella edge fertile. Cystidia absent. Pileipellis a cutis of radially arranged. 4-10 µm wide hyphae. Pigment abundant, brown, intracellular in pilepellis. Clamp-connections present in hymenium.
Habitat & distr. - Solitary or in small groups in grassland or on peaty soil, in the Netherlands found in Calluna heath with Sphagnum on dry, acid, sandy soil. Very rare (Nieuw Ginneken). Also known from Denmark and Czechoslovakia. May-Sept.
 
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