| Name | Closterium oligocampylum f. tenuior Roubal |
| Authorship | Roubal |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Closterium oligocampylum Schmidle |
| Remarks | Created from Taxon Name Import: Closterium oligocampylum f. tenuior Roubal |
| Name | Closterium oligocampylum f. tenuior Roubal |
| Authorship | Roubal |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Closterium oligocampylum Schmidle |
| Remarks | Created from Taxon Name Import: Closterium oligocampylum f. tenuior Roubal |