| Name | Tromera difformis (Fries) Arnold |
| Authorship | (Fries) Arnold |
| Rank | Species |
| NomenclaturalStatus | Synonym |
| Placed in | Tromera A. Massalongo ex Körber |
| Citation | 1874 Bot. Zeitung (Regensburg) 57: 85 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Tromera difformis (Fries) Arnold |
| Identification made in | [no date] (5) |