| Name | Prestonia marginata Markgraf |
| Authorship | Markgraf |
| Rank | Species |
| Placed in | Prestonia R. Brown |
| Citation | 1924 Notizbl. Bot. Gart. Berlin-Dahlem 9:88 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Prestonia marginata Markgraf |
| Identification made in | [no date] (3), 1933 (1), 1970 (1) |