| Name | Tortula williamsii E. B. Bartram |
| Authorship | E. B. Bartram |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Tortula Hedwig |
| Citation | 1924 Bryologist 27: 70 |
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Tortula williamsii E. B. Bartram |
| Identification made in | [no date] (16) |
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