Name requested: Collybia fusipes

	Mycology and Phytopathology 2 (2): 110. 6 (2): 115.
	Mycotaxon 9 (1): 202. 63: 361. 81: 128.
	Sydowia 22 (5-6): 373. 26 (1-6): 99.
	Transactions of the Mycological Society of Japan 20 (2): 253.

Heterotypic synonym: Agaricus contortus

Mycotaxon 81: 162.