Name requested: Polyporus amarus

	Mycologia 2 (3): 155. 13 (2): 114. 31 (6): 634, 645. 53 (5): 482. 57 (4): 642, 643, 644, 645, 646, 647, 648.
	Mycotaxon 2 (1): 20. 12 (2): 391.

Homotypic synonym: Fomes amarus

	Mycologia 12 (1): 15. 47 (2): 215.
	Sydowia 9 (1-6): 104, 182.

Homotypic synonym: Tyromyces amarus

Mycotaxon 2 (1): 20. 12 (2): 373, 391, 407.

Homotypic synonym: Oligoporus amarus

Mycotaxon 22 (2): 364.

Homotypic synonym: Postia amara

Mycotaxon 26: 272.