| Name | Cosmarium trilobulatum f. retusum Gutwinski |
| Authorship | Gutwinski & 1890 |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium trilobulatum Reinsch |
| Remarks | Created from Taxon Name Import: Cosmarium trilobulatum f. retusum Gutwinski, 1890 |
| Name | Cosmarium trilobulatum f. retusum Gutwinski |
| Authorship | Gutwinski & 1890 |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Cosmarium trilobulatum Reinsch |
| Remarks | Created from Taxon Name Import: Cosmarium trilobulatum f. retusum Gutwinski, 1890 |