| Name | Cylindrospermum riparium Kützing |
| Authorship | Kützing |
| Rank | Species |
| Placed in | Cylindrospermum Kützing ex Bornet & Flahault |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Cylindrospermum riparium Kützing |
| Identification made in | [no date] (1) |