| Name | Drepanocladus exannulatus f. serratus (Milde) Loeske |
| Authorship | (Milde) Loeske |
| Rank | Forma |
| Placed in | Drepanocladus exannulatus (Bruch, Schimper & W. Gümbel) Warnstorf |
| Citation | 1903 Moosfl. Harz. 309 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Drepanocladus exannulatus f. serratus (Milde) Loeske |
| Identification made in | [no date] (2) |