| Name | Cosmarium biretum var. triquetrum Brebisson |
| Authorship | Brebisson |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium biretum Brébisson ex Ralfs |
| Remarks | Created from Taxon Name Import: Cosmarium biretum var. triquetrum Brebisson |
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