| Name | Leptodontium excelsum var. flagellaceum (E. B. Bartram) R. H. Zander |
| Authorship | (E. B. Bartram) R. H. Zander |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Leptodontium excelsum (Sullivant) E. Britton |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Leptodontium excelsum var. flagellaceum (E. B. Bartram) R. H. Zander |
| Identification made in | [no date] (2) |