| Pleurothallis pruinosa Lindl. | J. A. Steyermark 88498 | Venezuela. Bolívar. Summit of west - facing wooded escarpment, E. of Miamo, leading to Hato de Nuria, Altiplanicie de Nuria. | | 4132141 |  |
| Pleurothallis pruinosa Lindl. | J. A. Steyermark 87733 | Venezuela. Delta Amacuro. between La Margarita and Puerta Miranda. Rio Acure. | | 4132139 |  |
| Pleurothallis pruinosa Lindl. | J. A. Steyermark 87488 | Venezuela. Delta Amacuro. Inundated forest Rio Cuyubini. Along lower section of river, upstream from Casa Cuyubini. | | 4132136 |  |
| Pleurothallis pruinosa Lindl. | H. H. Smith 2361 | Colombia. Magdalena. Santa Marta Mun. | | 4132135 |  |