| Name | Ceramium rubrum f. subtypicum Petersen |
| Authorship | Petersen |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Ceramium rubrum C. Agardh |
| Remarks | Created from Taxon Name Import: Ceramium rubrum f. subtypicum Petersen |
| GUID | urn:lsid:marinespecies.org:taxname:554079 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ceramium rubrum f. subtypicum Petersen |
| Identification made in | [no date] (1) |