Basionym: Agaricus zonarius Bull., Herbier de la France 3: t. 104 (1783) [MB#175523] Obligate synonyms: - Agaricus flexuosus Pers., Synopsis methodica fungorum: 430 (1801) [MB#201714] - Agaricus flexuosus var. zonarius (Bull.) Pers., Synopsis methodica fungorum: 430 (1801) [MB#495168] - Lactifluus zonarius (Bull.) Kuntze, Revisio generum plantarum 3 (3): 857 (1891) [MB#231744] - Galorrheus zonarius (Bull.) P. Kumm., Der Führer in die Pilzkunde: 127 (1871) [MB#507871] Taxonomic synonyms: - Lactarius flexuosus (Pers.) Gray, A natural arrangement of British plants 1: 624 (1821) [MB#221453] - Lactarius flexuosus var. flexuosus , A natural arrangement of British plants 1: 624 (1821) [MB#461801] - Agaricus lactifluus var. flexuosus Pers., Synopsis methodica fungorum: 430 (?) [MB#461698] - Lactifluus flexuosus (Pers.) Kuntze, Revisio generum plantarum 3 (3): 856 (1891) [MB#228857]