| Name | Calliergon trifarium (F. Weber & D. Mohr) Kindberg |
| Authorship | (F. Weber & D. Mohr) Kindberg |
| Rank | Species |
| Placed in | Calliergon |
| Citation | 1894 Canad. Rec. Sci. 6(2): 72 |
| Holdings | 27 Specimens held in the Harvard University Herbaria identified as Calliergon trifarium (F. Weber & D. Mohr) Kindberg |
| Identification made in | [no date] (26), 2004 (1) |