Name requested: Agaricus merdariusMycologia 14 (3): 138.
Homotypic synonym: Psilocybe merdariaMycotaxon 6 (3): 470. 7 (2): 229, 231, 232, 245. 83: 195. 88: 302. 89 (2): 368. 103: 114. 106: 179, 180, 181, 185. Persoonia 2 (1): 93, 94. 9 (3): 329, 349, 350, 359. Sydowia 39: 134, 136.