Name requested: Ustilago elymicolaAnnales Mycologici 32 (3-4): 286. Mycotaxon 41 (2): 491. Transactions of the Mycological Society of Japan 30 (4): 457.
Heterotypic synonym: Ustilago macrosporaMycologia 2 (6): 268. 11 (4): 202. 12 (5): 281. 13 (3): 181. Mycotaxon 41 (2): 491.
Heterotypic synonym: Ustilago aculeataAnnales Mycologici 38 (5-6): 461. Mycologia 43 (1): 70. Mycotaxon 41 (2): 491. Sydowia 5 (1-2): 41. Transactions of the Mycological Society of Japan 30 (4): 457.
Heterotypic synonym: Ustilago serpensMycotaxon 31 (2): 401, 403. 41 (2): 490, 491. Transactions of the Mycological Society of Japan 30 (4): 445.