| Name | Tortula agraria f. involuta Bizot & Thériot |
| Authorship | Bizot & Thériot |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Tortula agraria (Hedwig) Beauvais |
| Citation | 1939 Mem. Soc. Cub. Hist. Nat. "Felipe Poey" 13(5): 237 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Tortula agraria f. involuta Bizot & Thériot |
| Identification made in | [no date] (1) |