| Name | Capsosiphon groenlandicus f. magnicellularis Vinogradova |
| Authorship | Vinogradova |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Capsosiphon groenlandicus (J. Agardh) K. L. Vinogradova |
| Remarks | Created from Taxon Name Import: Capsosiphon groenlandicus f. magnicellularis Vinogradova |