| Name | Cosmarium arctoum var. constrictum Grönblad & A. M. Scott |
| Authorship | Grönblad & A. M. Scott |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium arctoum Nordstedt |
| Remarks | Created from Taxon Name Import: Cosmarium arctoum var. constrictum Gronblad & Scott |
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