| Name | Synedra ulna var. constricta Venkt. |
| Authorship | Venkt. |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Synedra ulna (Nitzsch) Ehrenberg |
| Remarks | Created from Taxon Name Import: Synedra ulna var. constricta Venkt. |
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