Entoloma cornicolor O. V. Morozova, Reschke

1. Entoloma cornicolor O.V. Morozova, Reschke & Noordel., in Reschke, Morozova, Dima, Cooper, Corriol, Biketova, Piepenbring & Noordeloos, Persoonia 49: 158 (2022) (Figs. 1, 5) Diagnostic characters. Pileus 15-30 mm in diameter, conic, broadly conic to hemispherical with small umbo when young, convex and papillulate when old; upper surface yellowish-brown or grayish brown when young, pale ochraceous, yellowish beige, with paler margin, darker toward center when old, smooth, glabrous; context thin, concolorous with upper surface or paler. Lamellae adnate, ventricose, moderately distant, whitish when young and pinkish when old. Stipe 40-60 × 1.5-3.0 mm, cylindrical, slightly tapering upward, yellowish-brown, smooth, polished, basal mycelium white, tomentose. Basidiospores 7.6-9.7 × 5.6-7.0 μm, heterodiametrical, with 5-7 angles. Basidia 28.5-35.5 × 10.5-12.5 μm, clavate, thin-wall, with 4-sterigmata. Habitat. Solitary or small groups on litter and soil in mixed forests. Material examined. KOREA, Taebaeksan National Park, Taebaek-si, Gangwon-do, 37°12 ʹ 24.97 ʺ N 128°54 ʹ 58.60 ʺ E, 31 vii 2023, NK Kim, NIBRFG0000517216. Remarks. This species is characterized by its relatively small mycenoid basidiocarps, with deeply translucently striated, beige to yellowish-brown pileus with a contrasting dark center, and polished, small, heterodiametrical basidiospores (Reschke et al., 2022). Their morphology closely resembled that of the Korean collection.