| Name | Pylaiella littoralis var. robusta Farlow |
| Authorship | Farlow |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Pylaiella littoralis (Linnaeus) Kjellman |
| Remarks | Created from Taxon Name Import: Pylaiella littoralis var. robusta Farlow |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Pylaiella littoralis var. robusta Farlow |
| Identification made in | [no date] (2) |