Name requested: Agaricus olivaceoalbusMycology and Phytopathology 4 (5): 474. Persoonia 10 (3): 364, 373, 376, 380. Sydowia 9 (1-6): 379, 380.
Homotypic synonym: Hygrophorus olivaceoalbusMycology and Phytopathology 2 (2): 109. Mycotaxon 69: 67. 83: 111, 490. Persoonia 10 (3): 357, 358, 359, 363, 373, 376, 378, 379*, 380*.