| Name | Hygroamblystegium filum var. compactum E. B. Bartram |
| Authorship | E. B. Bartram |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Hygroamblystegium filum (Müller Halle) Reimers |
| Citation | 1946 Farlowia 2: 137 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hygroamblystegium filum var. compactum E. B. Bartram |
| Identification made in | [no date] (2) |