| Name | Synthyris platycarpa Gail & Pennell |
| Authorship | Gail & Pennell |
| Rank | Species |
| Placed in | Synthyris Bentham |
| Citation | 1937 Amer. J. Bot. 24: 40 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Synthyris platycarpa Gail & Pennell |
| Identification made in | [no date] (4) |