| Name | Micrasterias americana f. ampullacea Maskell |
| Authorship | Maskell |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Micrasterias americana Ehrenberg ex Ralfs |
| Remarks | Created from Taxon Name Import: Micrasterias americana f. ampullacea Maskell |
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