| 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) |