| Name | Staurastrum proboscideum f. tetragona Nygaard |
| Authorship | Nygaard |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Staurastrum proboscideum (Brébisson) W. Archer |
| Remarks | Created from Taxon Name Import: Staurastrum proboscideum f. tetragona Nygaard |