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