| Name | Antithamnion butleriae Collins |
| Authorship | Collins |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Antithamnion Nägeli |
| Remarks | Created from Taxon Name Import: Antithamnion butleriae Collins |
| Citation | 1901 Proc. Amer. Acad. Arts 37: 258 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Antithamnion butleriae Collins |
| Identification made in | [no date] (4) |