| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Isodictya antarctica | (Kirkpatrick, 1908) | synonym | No | junior synonym |
new combination |
| Isodictya cactoides | (Kirkpatrick, 1908) | synonym | No | senior synonym |
new combination |
| Isodictya kerguelenensis | (Ridley & Dendy, 1886) | accepted name | Yes | senior synonym |
new combination |
| Isodictya kerguelensis | (Ridley & Dendy, 1886) | synonym | No | senior synonym |
new combination |