| Name | Cosmarium tortum f. trigona G. S. West |
| Authorship | G. S. West |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium tortum Lagerheim & Nordstedt ex Wittrock |
| Remarks | Created from Taxon Name Import: Cosmarium tortum f. trigona G. S. West |
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