| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Acetabularia polyphysoides | P. & H. Crouan | synonym | No | senior synonym |
original combination |
| Parvocaulis polyphysoides | (Crouan & Crouan) Berger, Fettweiss, Gleissberg, Liddle, Richt | accepted name | Yes | senior synonym |
new combination |