| Name | Staurastrum alternans f. tetragonum H.T.Croasdale & R.L.Grnblad |
| Authorship | H.T.Croasdale; R.L.Grnblad & 1964 |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Staurastrum alternans Brébisson |
| Remarks | Created from Taxon Name Import: Staurastrum alternans f. tetragonum H.T.Croasdale & R.L.Grnblad, 1964 |