| Name | Nostoc verrucosum Vaucher ex Bornet & Flahault |
| Authorship | Vaucher ex Bornet & Flahault |
| Rank | Species |
| Placed in | Nostoc Vaucher ex Bornet & Flahault |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Nostoc verrucosum Vaucher ex Bornet & Flahault |
| Identification made in | [no date] (5) |