| Name | Pleuridium costesii Thériot |
| Authorship | Thériot |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Pleuridium |
| Citation | 1921 Revista Chilena Hist. Nat. 25: 289 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pleuridium costesii Thériot |
| Identification made in | [no date] (1) |