Order: Ulothricales
Systematics :
| Kingdom | Planteriket (Plantae) | |||||
| Phylum | Green algae (Chlorophyta) | |||||
| Klasse | Grønnalger (Chlorophyceae) | |||||
| Order | Ulothricales | |||||
| Genus | Bulbochaete | |||||
| Genus | Elakatothrix | |||||
| Species | Elakatothrix biplex | |||||
| Species | Elakatothrix gelatinosa | |||||
| Species | Elakatothrix genevensis | |||||
| Species | Elakatothrix viridis | |||||
| Genus | Grønhår (Ulothrix) | |||||
| Genus | Hormidium | |||||
| Genus | Koliella | |||||
| Species | Koliella longiseta | |||||
| Species | Koliella spiculiformis | |||||
| Species | Koliella spiralis | |||||
| Species | Koliella spirotaenia | |||||
| Genus | Microspora | |||||
| Genus | Oedogonium | |||||
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