| Name | Trentepohlia jolithus f. crassior Nordstedt |
| Authorship | Nordstedt |
| Rank | Forma |
| Placed in | Trentepohlia jolithus (Linnaeus) Wallroth |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Trentepohlia jolithus f. crassior Nordstedt |
| Identification made in | [no date] (1) |