| Name | Cosmarium tetragonum var. intermedium Boldt |
| Authorship | Boldt |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium tetragonum (Nägeli) W. Archer |
| Remarks | Created from Taxon Name Import: Cosmarium tetragonum var. intermedium Boldt |
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