| Name | Oscillaria antilaria var. phormidioides (Kützing) Rabenhorst ex Gomont |
| Authorship | (Kützing) Rabenhorst ex Gomont |
| Rank | Variety |
| Placed in | Oscillaria antilaria (Kützing) Rabenhorst ex Gomont |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Oscillaria antilaria var. phormidioides (Kützing) Rabenhorst ex Gomont |
| Identification made in | [no date] (1) |