| Name | Pyramidula tetragona (Bridel) Bridel |
| Authorship | (Bridel) Bridel |
| Rank | Species |
| Placed in | Pyramidula |
| Citation | 1819 [1818] Muscol. Recent. Suppl. 4: 20 |
| Holdings | 13 Specimens held in the Harvard University Herbaria identified as Pyramidula tetragona (Bridel) Bridel |
| Identification made in | [no date] (13) |
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