| 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 | 
