| Name | Pogonatum spinulosum var. serricalyx E. B. Bartram |
| Authorship | E. B. Bartram |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Pogonatum spinulosum Mitten |
| Citation | 1936 Ann. Bryol. 8: 21 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Pogonatum spinulosum var. serricalyx E. B. Bartram |
| Identification made in | [no date] (2) |