Subclass: Florideophycidae
Systematics :
| Kingdom | Planteriket (Plantae) | ||||
| Phylum | Red algae (Rhodophyta) | ||||
| Klasse | Red algae (Rhodophyceae) | ||||
| Subclass | Florideophycidae | ||||
| Order | Acrochaetiales | ||||
| Order | Ahnfeltiales | ||||
| Order | Bangiales | ||||
| Order | Bonnemaisoniales | ||||
| Order | Ceramiales | ||||
| Order | Gelidales | ||||
| Order | Gigartinales | ||||
| Order | Gracilariales | ||||
| Order | Hildenbrandiales | ||||
| Order | Kalkalger (Corallinales) | ||||
| Order | Nemaliales | ||||
| Order | Palmariales | ||||
| Order | Plocamiales | ||||
| Order | Rhodymeniales | ||||
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