Name requested: Stereum ambiguum

	Mycologia 10 (1): 13. 13 (1): 30. 33 (5): 575.
	Mycotaxon 12 (2): 394. 37: 54.

Homotypic synonym: Columnocystis ambigua

	Mycotaxon 10 (2): 492. 12 (2): 394, 397. 83: 4.
	Sydowia 14 (1-6): 128.

Homotypic synonym: Veluticeps ambigua

Mycotaxon 37: 53, 54, 55.