At any stage, you can move up or down the Taxonomic hierachy of Antarctic/subantarctic species by clicking on any name. Lower level taxon counts are shown in [].
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| Kingdom | Plantae | |
| Phylum | Magnoliophyta | |
| Class | Liliopsida | |
| Order | Najadales | |
| Family | Posidoniaceae |
List of all species - see Taxon profile using the number
| Genus Alga | ||||
| Alga sp. | ||||
| Alga sp./Cyanobacterium | ||||