| Name | Macromeria longiflorum Sessé & Moçiño ex D. Don |
| Authorship | Sessé & Moçiño ex D. Don |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Macromeria D. Don |
| Citation | 1932 Edinburgh New Philos. J. 13: 239 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Macromeria longiflorum Sessé & Moçiño ex D. Don |
| Identification made in | [no date] (1) |