| Name | Xylobium undulatum (Ruiz & Pavon) Rolfe |
| Authorship | (Ruiz & Pavon) Rolfe |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Xylobium |
| Contains | Xylobium undulatum var. portillae Ormerod |
| Citation | 1912 Orchid Rev. 20: 43 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Xylobium undulatum (Ruiz & Pavon) Rolfe |
| Identification made in | [no date] (2), 2023 (1) |