Author:
Jan Scholten
Book:
Type:
Chapter:
3-633.13.00

English: sea grasses.

Taxonomy
The 5 families Zosteraceae, Cymodoceaceae, Posidoniaceae, Potamogetonaceae and Ruppiaceae form one monophyletic clade in the Apg3 classification. The are sea grasses.
In the Plant theory they are treated as one family Zosteraceae. It is placed in Subphase 3. They have 16 genera.

Families
Cymodoceaceae: Manatee-grass family; Sea grasses; Amphibolis, Cymodocea, Halodule, Syringodium, Thalassodendron
Posidoniaceae: Sea grass family: Posidonia.
Potamogetonaceae: Pondweed family; Althenia, Groenlandia, Lepilaena, Potamogeton, Stuckenia, Zannichellia.
Ruppiaceae: Ruppia.
Zosteraceae: Sea grass family; Phyllospadix, Zostera, including Heterozostera, Zostera, Zosterella.