Chlorophyceae
- Volvocales
Chiefly freshwater green algae; solitary or colonial.
- Chlorococcales
Unicellular green algae that reproduce by spores.
- Ulvales
An order of protoctist.
- Oedogoniales
Simple or branched filamentous freshwater green algae.
Also contains
- Laminariales
In some classifications coextensive with family Laminariaceae: marine brown algae of...
- Heterotrichales
Yellow-green algae with simple or branching filaments; comprising the single family...
- Charales
Small order of macroscopic fresh and brackish water algae with a distinct axis: stonew...