Name requested: Hygrophorus firmusMycotaxon 10 (1): 108, 109. Sydowia 11 (1-6): 355.
Homotypic synonym: Hygrocybe firmaMycotaxon 57: 56. 75: 456. Sydowia 11 (1-6): 355. 12 (1-6): 225, 226, 243. Transactions of the Mycological Society of Japan 27 (3): 287, 289.