| Name | Tetraplodon angustatus (Hedwig) Bruch & Schimper |
| Authorship | (Hedwig) Bruch & Schimper |
| Rank | Species |
| Placed in | Tetraplodon |
| Citation | 1844 Bryol. Eur. 3: 214 |
| Holdings | 43 Specimens held in the Harvard University Herbaria identified as Tetraplodon angustatus (Hedwig) Bruch & Schimper |
| Identification made in | [no date] (34), 1600 (1), 1967 (2), 1987 (6) |