| Name | Ceramium lenormandii G. Martens ex Picquenard |
| Authorship | G. Martens ex Picquenard |
| Rank | Species |
| NomenclaturalStatus | NomInvalid |
| Placed in | Ceramium Roth |
| Remarks | Created from Taxon Name Import: Ceramium lenormandii |
| Citation | 1912 Trav. Sci. Lab. Zool. Physiol. Marit. Concarneau 4(4): 82 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ceramium lenormandii G. Martens ex Picquenard |
| Identification made in | [no date] (1) |