| Name | Isopterygium subpinnatum Thériot |
| Authorship | Thériot |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Isopterygium |
| Citation | 1930 Rev. Bryol. 3: 49 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Isopterygium subpinnatum Thériot |
| Identification made in | [no date] (1) |