| Name | Lyngbya aestuarii f. aeruginosa Gomont |
| Authorship | Gomont |
| Rank | Forma |
| Placed in | Lyngbya aestuarii Liebmann ex Gomont |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Lyngbya aestuarii f. aeruginosa Gomont |
| Identification made in | [no date] (2) |