| Name | Pleurothallis purpureo-violaceo Cogniaux |
| Authorship | Cogniaux |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Pleurothallis R. Brown |
| Citation | 1893 Fl. Bras. [Martius] 2(4): 405 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Pleurothallis purpureo-violaceo Cogniaux |
| Identification made in | [no date] (1), 1998 (1), 2018 (1) |