| Name | Ahnfeldtia concinna J. Agardh |
| Authorship | J. Agardh |
| Rank | Species |
| Placed in | Ahnfeldtia Trevisan |
| Holdings | 24 Specimens held in the Harvard University Herbaria identified as Ahnfeldtia concinna J. Agardh |
| Identification made in | [no date] (24) |
| Name | Ahnfeldtia concinna J. Agardh |
| Authorship | J. Agardh |
| Rank | Species |
| Placed in | Ahnfeldtia Trevisan |
| Holdings | 24 Specimens held in the Harvard University Herbaria identified as Ahnfeldtia concinna J. Agardh |
| Identification made in | [no date] (24) |