| Name | Taxithelium planissimum Brotherus |
| Authorship | Brotherus |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Taxithelium |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Taxithelium planissimum Brotherus |
| Identification made in | [no date] (1) |