| Name | Gymnostomum obtusum Hedwig |
| Authorship | Hedwig |
| Rank | Species |
| Placed in | Gymnostomum |
| Citation | 1801 Sp. Musc. Frond. 34. 2 f. 1–3. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Gymnostomum obtusum Hedwig |
| Identification made in | [no date] (1) |