| Name | Cosmarium speciosum f. americanum (West & West) West & West |
| Authorship | (West & West) West; West & 1908 |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium speciosum P. Lundell |
| Remarks | Created from Taxon Name Import: Cosmarium speciosum f. americanum (West & West) West & West, 1908 |