| Name | Phormidium crosbyanum Tilden |
| Authorship | Tilden |
| Rank | Species |
| Placed in | Phormidium Kützing ex Gomont |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Phormidium crosbyanum Tilden |
| Identification made in | [no date] (2) |
Copyright © 2013 The President and Fellows of Harvard College | Accessibility