Basionym:
Agaricus adustus Pers., Synopsis methodica fungorum: 459 (1801) [MB#161781]
Obligate synonyms:
- Omphalia adusta (Pers.) Gray, A natural arrangement of British plants 1: 614 (1821) [MB#486494]
- Russula nigricans var. adusta (Pers.) Barbier, So. Sci. Nat. Sâon.: 191 (1907) [MB#513943]
Taxonomic synonyms:
- Agaricus nigricans Bull., Histoire des champignons de la France 1: tab. 370, fig. 2, 579 (1791) [MB#233248]
- Russula subusta Burl., North American Flora 9: 207 (1915) [MB#214672]
- Russula adusta f. gigantea Britzelm., Botanisches Centralblatt 62 (10): 310 (1895) [MB#373253]