Basionym: Agaricus peronatus Bolton, An History of Fungusses, Growing about Halifax 2: t. 58 (1788) [MB#450777] Obligate synonyms: - Collybia peronata (Bolton) P. Kumm., Der Führer in die Pilzkunde: 116 (1871) [MB#295414] - Marasmius peronatus (Bolton) Fr., Anteckningar öfver de i Sverige växande ätliga svampar: 52 (1836) [MB#213243] - Gymnopus peronatus (Bolton) Gray, A natural arrangement of British plants 1: 607 (1821) [MB#493829] - Agaricus peronatus var. peronatus (?) [MB#422102] - Marasmiellus peronatus (Bolton) J.S. Oliveira, Mycological Progress 18 (5): 735 (2019) [MB#828512] Taxonomic synonyms: - Agaricus urens Bull., Herbier de la France 11: tab. 528, fig. 1 (1791) [MB#455988] - Marasmius urens (Bull.) Fr., Anteckningar öfver de i Sverige växande ätliga svampar: 52 (1836) [MB#155499] - Collybia urens (Bull.) P. Kumm., Der Führer in die Pilzkunde: 115 (1871) [MB#455989] - Agaricus ureus Bull., Herbier de la France 11 (1791) [MB#494876] - Chamaeceras urens (Bull.) Kuntze: 457 (1898) [MB#524450]