Name requested: Gyrocratera ploettneriana

	Annales Mycologici 37 (6): 467, 490.
	Mycologia 59 (5): 828.
	Mycotaxon 2 (1): 113.

Homotypic synonym: Hydnotrya ploettneriana

Mycotaxon 2 (1): 113. 62: 82.

Heterotypic synonym: Geopora michaelis

	Annales Mycologici 37 (6): 465, 466.
	Mycologia 60 (3): 498, 520, 522.
	Mycotaxon 2 (1): 113. 62: 82, 83.

Heterotypic synonym: Hydnotryopsis michaelis

	Mycologia 60 (3): 520, 522.
	Mycotaxon 2 (1): 113.

Heterotypic synonym: Geoporella michaelis

	Mycologia 60 (3): 520, 522.
	Mycotaxon 2 (1): 112, 113.

Heterotypic synonym: Hydnotrya michaelis

Mycotaxon 2 (1): 109, 113. 4 (1): 211, 215. 9 (1): 314. 42: 161. 57: 377. 62: 14, 81, 82, 83, 84, 86, 95, 97, 122.