| Name | Tolypothrix willei Setchell & N. L. Gardner |
| Authorship | Setchell & N. L. Gardner |
| Rank | Species |
| Placed in | Tolypothrix Kützing ex Bornet & Flahault |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Tolypothrix willei Setchell & N. L. Gardner |
| Identification made in | [no date] (1) |