| Name | Cosmarium quaternarium Nordstedt |
| Authorship | Nordstedt |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium |
| Contains | Cosmarium quaternarium var. quaternarium Nordstedt Cosmarium quaternarium var. tumefactum Nordstedt |
| Remarks | Created from Taxon Name Import: Cosmarium quaternarium Nordstedt |
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