| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Protopolyclinum claviforme | Kott, 1963 | synonym | No | senior synonym |
original combination |
| Protopolyclinum pulvinatum | unspecified | synonym | No | junior synonym |
|
| Protopolyclinum sabulosa | unspecified | synonym | No | junior synonym |
|
| Pseudodiazona claviforme | (Kott, 1963) | synonym | No | junior synonym |
new combination |
| Pseudodiazona claviformis | (Kott, 1963) | accepted name | Yes | senior synonym |
new combination |