Number of species with valid names reported as Halymenia floridana: 2
| N° | Name of the species |
|---|---|
| Cryptonemia floridana (J.Agardh) J.P.Soares, T.Sauvage et M.T.Fujii | |
| Halymenia gelinaria Collins & M.Howe |
| N° | Name of the species |
|---|---|
| Cryptonemia floridana (J.Agardh) J.P.Soares, T.Sauvage et M.T.Fujii | |
| Halymenia gelinaria Collins & M.Howe |