Ryuguphycus H.Kawai, T.Hanyuda & T.Kitayama, 2020 genus doubtful

Lola A.Hamel & G.Hamel, 1929 genus accepted

Enteromorpha Link, 1820 genus synonym

Ulvaria Ruprecht, 1850 genus accepted

Solenia C.Agardh, 1824 genus doubtful

Zignoa Trevisan, 1842 genus doubtful

Gemina V.J.Chapman, 1952 genus accepted

Umbraulva E.H.Bae & I.K.Lee, 2001 genus accepted

Chloropelta Tanner, 1980 genus accepted

Kallonema G.Dickie, 1871 genus synonym

Letterstedtia J.E.Areschoug, 1850 genus accepted

Hydrosolen Martius, 1833 genus doubtful

Percursaria Bory de Saint-Vincent, 1823 genus accepted

Phycoseris Kützing, 1843 genus synonym

Tetranema Areschoug, 1850 genus doubtful

Ruthnielsenia C.J.O'Kelly, B.Wysor & W.K.Bellows, 2004 genus accepted

Ochlochaete G.H.K.Thwaites, 1849 genus accepted

Enteronia Chevallier, 1836 genus doubtful

Ochlochaete Thwaites ex Harvey genus synonym

Phyllona Wiggers, 1780 genus synonym

Diplonema Kjellman, 1883 genus synonym

Ramularia H.Roussel, 1806 genus doubtful

Phascon M.Adanson, 1763 genus doubtful

Hydracanthus Kützing, 1847 genus doubtful

Lobata V.J.Chapman, 1952 genus accepted

Fistularia Greville, 1824 genus doubtful

Tubularia Roussel, 1806 genus synonym

Haemmerlenia Trevisan, 1848 genus doubtful

Ulva Linnaeus, 1753 genus accepted

Chaetobolus Rosenvinge, 1893 genus synonym

Ruthnielsenii genus synonym