| Name | Calliergon richardsonii (Mitten) Kindberg |
| Authorship | (Mitten) Kindberg |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Calliergon |
| Contains | Calliergon richardsonii var. fluitans (Bryhn) Brotherus Calliergon richardsonii var. pungens Bryhn |
| Citation | 1897 Eur. N. Amer. Bryin. 1: 79 |
| Holdings | 41 Specimens held in the Harvard University Herbaria identified as Calliergon richardsonii (Mitten) Kindberg |
| Identification made in | [no date] (38), 2004 (3) |