Basionym: Agaricus pediades Fr., Systema Mycologicum 1: 290 (1821) [MB#375067] Obligate synonyms: - Naucoria pediades (Fr.) Pat., Journal de Botanique (Morot) 5: 309 (1891) [MB#100749] - Nolanea pediades (Fr.) Sacc., Sylloge Fungorum 5: 760 (1887) [MB#188900] - Simocybe pediades (Fr.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 427 (1879) [MB#493266] - Naucoria pediades (Fr.) Sacc., Sylloge Fungorum 5: 844 (1887) [MB#567150] - Naucoria pediades (Fr.) Quél. (?) [MB#567151] - Naucoria pediades (Fr.) P. Kumm., Der Führer in die Pilzkunde: 78 (1871) [MB#531193] Taxonomic synonyms: - Naucoria subpediades Murrill, Lloydia 5: 150 (1942) [MB#288738] - Agrocybe subpediades (Murrill) Watling, Kew Bulletin 31 (3): 592 (1977) [MB#308406] - Agaricus arenicola Berk., London Journal of Botany 2: 511 ['411'] (1843) [MB#462496] - Agrocybe arenicola (Berk.) Singer, Beihefte zum Botanischen Centralblatt 56: 169 (1936) [MB#257278] - Naucoria arenicola (Berk.) Sacc., Sylloge Fungorum 5: 845 (1887) [MB#204443] - Naucoria arenaria Peck, Bulletin of the New York State Museum 157: 29 (1912) [MB#204581] - Agrocybe arenaria (Peck) Singer, Beihefte zur Nova Hedwigia 29: 227 (1978) [MB#325917] - Agrocybe splendida Clémençon, Nova Hedwigia 28 (1): 8 (1977) [MB#308403] - Naucoria pediades var. obscuripes Fayod, Verh. Bot. Ver. Prov. Brandenb.: 226 (1889) [MB#182652] - Agaricus pusillus Schaeff., Fungorum qui in Bavaria et Palatinatu circa Ratisbonam nascuntur Icones 4: 45, t. 203 (1774) [MB#234723] - Agrocybe pusilla (Schaeff.) Watling, Bibliotheca Mycologica 82: 54 (1981) [MB#112030] - Agaricus subcoriaceus Batsch, Elenchus fungorum: 71 (1783) [MB#495434] - Agaricus semiorbicularis Bull., Herbier de la France 9: t. 422:1 (1789) [MB#149228] - Naucoria semiorbicularis (Bull.) Quél., Mémoires de la Société d'Émulation de Montbéliard ser. 2, 5: 132 (1872) [MB#179642] - Agrocybe semiorbicularis (Bull.) Fayod, Annales des Sciences Naturelles Botanique ser. 7, 9: 358 (1889) [MB#439296] - Agaricus pumilus var. semiorbicularis (Bull.) Pers., Mycologia Europaea 3: 163 (1828) [MB#498002] - Pseudodeconica semiorbicularis (Bull.) Overeem, De nuttige planten van Nederlandsch Indië 1: 74 (1927) [MB#254653] - Simocybe semiorbicularis (Bull.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 232 (1879) [MB#493290] - Hylophila semiorbicularis (Bull.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 88 (1886) [MB#492957]