| Name | Fragilaria lapponica var. tetragonalis Prowse |
| Authorship | Prowse |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Fragilaria lapponica Grunow |
| Remarks | Created from Taxon Name Import: Fragilaria lapponica var. tetragonalis Prowse |
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