Name requested: Podosphaera oxyacanthae

	Annales Mycologici 6 (1): 11, 33. 12 (1): 8.
	Mycologia 62 (4): 709, 711, 712.
	Mycotaxon 10 (1): 60.
	Sydowia 17 (1-6): 42. 22 (1-4): 117, 153. 32: 14. 38: 363.
	Transactions of the Mycological Society of Japan 25 (2): 199.

Heterotypic synonym: Podosphaera clandestina

	Mycologia 44 (4): 572. 56 (5): 765.
	Mycology and Phytopathology [as Микология и Фитопатология] 5 (2): 207. 8 (6): 469. 9 (6): 478.
	Mycotaxon 16 (2): 428. 19: 371. 46: 447.
	Sydowia 32: 41, 42.
	Transactions of the Mycological Society of Japan 25 (2): 200, 202. 27 (1): 25.

Heterotypic synonym: Podosphaera minor

Mycotaxon 19: 372.