| Name | Pleurothallis pterocaulis L. O. Williams |
| Authorship | L. O. Williams |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Pleurothallis R. Brown |
| GUID | urn:lsid:ipni.org:names:203410-2 |
| Citation | 1940 Ann. Missouri Bot. Gard. 27: 280 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Pleurothallis pterocaulis L. O. Williams |
| Identification made in | [no date] (1), 1998 (1), 2011 (1) |