Name requested: Agaricus porrigens

	Mycologia 4 (4): 215.
	Mycotaxon 81: 149.
	Sydowia 5 (3-6): 452.

Homotypic synonym: Pleurotus porrigens

	Annales Mycologici 32 (5-6): 482.
	Mycologia 29 (3): 374. 33 (5): 486. 39 (1): 77, 81. 56 (4): 625.
	Mycotaxon 81: 149.

Homotypic synonym: Pleurocybella porrigens

	Mycologia 39 (1): 81, 82, 83. 56 (4): 615. 64 (4): 829.
	Mycotaxon 52 (1): 26, 37. 81: 149.
	Sydowia 15 (1-6): 172. 26 (1-6): 96.
	Transactions of the Mycological Society of Japan 23 (4): 502. 24 (2): 242. 26 (3): 369, 370.

Homotypic synonym: Nothopanus porrigens

Mycotaxon 76: 277.