Name requested: Tretopileus opuntiaeMycological Papers 78: 2.
Heterotypic synonym: Monotospora sphaerophoraMycologia 52 (2): 355. Mycological Papers 78: 2.
Heterotypic synonym: Tretopileus sphaerophorusMycologia 52 (2): 355. Mycological Papers 78: 2.