Britzelmayria supernula (Britzelm.) Wächter & A. Melzer, comb. nov.
MycoBank number: MB 831796; Index Fungorum number: IF 831796; Facesoffungi number: FoF;
Basionym: Agaricus supernulus Britzelm., Ber naturhist Ver Augsburg 27:176, 1883. References (partly as Psathyrella narcotica Kits van Wav.): Christan et al. (2017), Deschuyteneer (2018), Einhellinger (1987), Enderle (1989), Kits van Waveren (1971), Kits van Waveren (1985), Krisai- Greilhuber (1992), Ludwig (2007), Örstadius and Enderle (2009). Mat. exam.: Belgium: Brabant, 13.XI.2016, D. Deschuyteneer (AM1859). Germany: Thuringia, Gera- Kaimberg, 06.XI. 2011, A. Vesper (AM1570).