Name requested: Agaricus marginellus

	Mycologia 29 (6): 727.
	Transactions of the Mycological Society of Japan 28 (2): 181.

Homotypic synonym: Hydropus marginellus

	Mycologia 35 (2): 159. 38 (2): 227. 56 (4): 623.
	Mycotaxon 81: 132. 89 (2): 331.
	Persoonia 17 (4): 634.
	Sydowia 15 (1-6): 174. 36: 9. 39: 118.
	Transactions of the Mycological Society of Japan 28 (2): 171, 181, 183, 188.

Heterotypic synonym: Mycena marginella

Mycologia 62 (1): 27.