| Name | Lyngbya gracilis Rabenhorst ex Gomont |
| Authorship | Rabenhorst ex Gomont |
| Rank | Species |
| Placed in | Lyngbya C. Agardh ex Gomont |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lyngbya gracilis Rabenhorst ex Gomont |
| Identification made in | [no date] (1) |