| Name | Cosmarium pseudopyramidatum subsp. umbonulatum Nordstedt |
| Authorship | Nordstedt |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium pseudopyramidatum P. Lundell |
| Remarks | Created from Taxon Name Import: Cosmarium pseudopyramidatum subsp. umbonulatum Nordstedt |
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