| Name | Plagiochila longaeva Herzog |
| Authorship | Herzog |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Plagiochila |
| Citation | 1932 Hedwigia 72: 201 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Plagiochila longaeva Herzog |
| Identification made in | 1933 (1), 2000 (1) |