| Name | Inouethuidium R. Watanabe |
| Authorship | R. Watanabe |
| Rank | Genus |
| NomenclaturalStatus | NomLeg |
| Placed in | Thuidiaceae |
| Contains | Inouethuidium robinsii (E. B. Bartram) R. Watanabe Inouethuidium sp. |
| Remarks | Type: I. robbinsii (E. B. Bartram) R. Watanabe (Thuidium robbinsii E. B. Bartram) |
| Citation | 29 Jan 1991 J. Hattori Bot. Lab. 69: 44 |