| Name | Hypnum monoicum Sande Lacoste |
| Authorship | Sande Lacoste |
| Rank | Species |
| Placed in | Hypnum Hedwig |
| Citation | 1869 Bryol. Jav. 2: 207. 306. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Hypnum monoicum Sande Lacoste |
| Identification made in | 2018 (1) |