| Name | Sphagnum serratum var. serrulatum (Schliephacke) Warnstorf |
| Authorship | (Schliephacke) Warnstorf |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Sphagnum serratum Austin |
| Citation | 1911 Pflanzenr. [Engler] 51: 247 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Sphagnum serratum var. serrulatum (Schliephacke) Warnstorf |
| Identification made in | [no date] (1) |