Name requested: Agaricus arrheniiPersoonia 6 (1): 128, 129, 130, 131, 132, 133, 134, 147.
Homotypic synonym: Conocybe arrheniiMycotaxon 87: 286. Persoonia 6 (1): 119, 123, 124, 125, 126, 127, 131, 132, 134, 135, 136, 137, 139, 141, 146, 147, 150, 156, 158. 6 (2): 285, 287. 6 (3): 328, 333, 337.