| Name | Pleurothallis nigriflora L. O. Williams |
| Authorship | L. O. Williams |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Pleurothallis R. Brown |
| GUID | urn:lsid:ipni.org:names:203234-2 |
| Citation | 1942 Amer. Orchid Soc. Bull. 11: 168 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Pleurothallis nigriflora L. O. Williams |
| Identification made in | [no date] (1), 1939 (2), 1995 (1), 1998 (1), 2011 (2), 2018 (1) |