| Name | Petrohua G. W. Saunders |
| Authorship | G. W. Saunders |
| Rank | Genus |
| NomenclaturalStatus | NomLeg |
| Placed in | Batrachospermales |
| Contains | Petrohua bernabei G. W. Saunders Petrohua sp. |
| Remarks | Type: Petrohua bernabei G. W. Saunders |
| Citation | Jun 2007 Phycol. Res. 55(2): 111 |