| Name | Ulothrix quaternaria f. angustissima Playfair |
| Authorship | Playfair |
| Rank | Forma |
| NomenclaturalStatus | Unknown |
| Placed in | Ulothrix quaternaria Playfair |
| Remarks | Created from Taxon Name Import: Ulothrix quaternaria f. angustissima Playfair |
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