Antithamnion Nägeli, 1847 (additional source)
Bangia Lyngbye, 1819 (additional source)
Blidingia Kylin, 1947 (additional source)
Blidingia marginata (J.Agardh) P.J.L.Dangeard ex Bliding, 1963 (additional source)
Blidingia minima (Nägeli ex Kützing) Kylin, 1947 (additional source)
Bornetia Thuret, 1855 (additional source)
Bryopsis hypnoides J.V.Lamouroux, 1809 (additional source)
Bryopsis plumosa (Hudson) C.Agardh, 1823 (additional source)
Callithamnion Lyngbye, 1819 (additional source)
Carradoriella P.C.Silva, 1996 (basis of record)
Caulerpa J.V.Lamouroux, 1809 (additional source)
Ceramium Roth, 1797 (additional source)
Ceramium cimbricum H.E.Petersen, 1924 (additional source)
Ceramium codii (H.Richards) Mazoyer, 1938 accepted as Stirkia codii (H.Richards) Barros-Barreto & Maggs, 2023 (additional source)
Ceramium deslongchampsii Chauvin ex Duby, 1830 (additional source)
Ceramium diaphanum (Lightfoot) Roth, 1806 (additional source)
Ceramium flaccidum (Harvey ex Kützing) Ardissone, 1871 accepted as Gayliella flaccida (Harvey ex Kützing) T.O.Cho & L.J.McIvor, 2008 (additional source)
Ceramium rubrum C.Agardh, 1811 accepted as Ceramium virgatum Roth, 1797 (additional source)
Ceramium tenerrimum (G.Martens) Okamura, 1921 accepted as Pseudoceramium tenerrimum (G.Martens) Barros-Barreto & Maggs, 2023 (additional source)
Chaetomorpha Kützing, 1845 (additional source)
Chaetomorpha aerea (Dillwyn) Kützing, 1849 (additional source)
Chaetomorpha crassa (C.Agardh) Kützing, 1845 (additional source)
Chaetomorpha gracilis Kützing, 1845 (additional source)
Chaetomorpha linum (O.F.Müller) Kützing, 1845 (additional source)
Chondria C.Agardh, 1817 (additional source)
Chondria capillaris (Hudson) M.J.Wynne, 1991 (additional source)
Chondria dasyphylla (Woodward) C.Agardh, 1817 (additional source)
Cladophora Kützing, 1843 (additional source)
Cladophora albida (Nees) Kutzing, 1843 (additional source)
Cladophora coelothrix Kützing, 1843 (additional source)
Cladophora echinus (Biasoletto) Kützing, 1849 accepted as Lychaete echinus (Biasoletto) M.J.Wynne, 2017 (additional source)
Cladophora hutchinsiae (Dillwyn) Kützing, 1845 (additional source)
Cladophora laetevirens (Dillwyn) Kützing, 1843 (additional source)
Cladophora lehmanniana (Lindenberg) Kützing, 1843 (additional source)
Cladophora prolifera (Roth) Kützing, 1843 (additional source)
Cladophora sericea (Hudson) Kützing, 1843 (additional source)
Cladophora vagabunda (Linnaeus) Hoek, 1963 (additional source)
Cladophoropsis Børgesen, 1905 (additional source)
Cladophoropsis membranacea Bang ex C.Agardh) Børgesen, 1905 (additional source)
Cladosiphon Kützing, 1843 (additional source)
Codium Stackhouse, 1797 (additional source)
Corallina Linnaeus, 1758 (additional source)
Corallina officinalis Linnaeus, 1758 (additional source)
Cutleria Greville, 1830 (additional source)
Cystoseira C.Agardh, 1820 (additional source)
Dasya C.Agardh, 1824 (additional source)
Dasya baillouviana (S.G.Gmelin) Montagne, 1841 accepted as Dasya pedicellata (C.Agardh) C.Agardh, 1824 (additional source)
Desmarestia J.V.Lamouroux, 1813 (additional source)
Dictyota dichotoma (Hudson) J.V.Lamouroux, 1809 (additional source)
Dictyota linearis (C.Agardh) Greville, 1830 accepted as Dictyota implexa (Desfontaines) J.V.Lamouroux, 1809 (basis of record)
Dipterosiphonia F.Schmitz & Falkenberg, 1897 (additional source)
Ectocarpus Lyngbye, 1819 (additional source)
Ectocarpus siliculosus (Dillwyn) Lyngbye, 1819 (additional source)
Enteromorpha Link, 1820 accepted as Ulva Linnaeus, 1753 (additional source)
Enteromorpha clathrata (Roth) Greville, 1830 accepted as Ulva clathrata (Roth) C.Agardh, 1811 (additional source)
Enteromorpha compressa (Linnaeus) Nees, 1820 accepted as Ulva compressa Linnaeus, 1753 (additional source)
Enteromorpha flexuosa (Wulfen) J.Agardh, 1883 accepted as Ulva flexuosa Wulfen, 1803 (additional source)
Enteromorpha intestinalis (Linnaeus) Nees, 1820 accepted as Ulva intestinalis Linnaeus, 1753 (additional source)
Enteromorpha kylinii Bliding, 1948 accepted as Ulva kylinii (Bliding) H.S.Hayden, Blomster, Maggs, P.C.Silva, Stanhope & Waaland, 2003 (additional source)
Enteromorpha linza (Linnaeus) J.Agardh, 1883 accepted as Ulva linza Linnaeus, 1753 (additional source)
Enteromorpha muscoides (Clemente) Cremades, 1990 accepted as Ulva clathrata (Roth) C.Agardh, 1811 (additional source)
Enteromorpha prolifera (O.F.Müller) J.Agardh, 1883 accepted as Ulva prolifera O.F.Müller, 1778 (additional source)
Enteromorpha torta (Mertens) Reinbold, 1893 accepted as Ulva torta (Mertens) Trevisan, 1842 (additional source)
Entocladia Reinke, 1879 (additional source)
Entocladia viridis Reinke, 1879 accepted as Ulvella viridis (Reinke) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013 (basis of record)
Erythrotrichia Areschoug, 1850 (additional source)
Erythrotrichia carnea (Dillwyn) J.Agardh, 1883 (additional source)
Eudesme J.Agardh, 1882 (additional source)
Eupogodon Kützing, 1845 (additional source)
Eupogodon planus (C.Agardh) Kützing, 1845 (additional source)
Feldmannia G.Hamel, 1939 (additional source)
Feldmannia irregularis (Kützing) Hamel, 1939 (additional source)
Gayralia K.L.Vinogradova, 1969 (basis of record)
Gayralia oxysperma (Kützing) K.L.Vinogradova ex Scagel et al., 1989 (basis of record)
Gelidium J.V. Lamouroux, 1813 (additional source)
Gomontia Bornet & Flahault, 1888 (additional source)
Gomontia polyrhiza (Lagerheim) Bornet & Flahault, 1888 (additional source)
Halopteris Kützing, 1843 (additional source)
Herposiphonia Nägeli, 1846 (basis of record)
Herposiphonia secunda (C.Agardh) Ambronn, 1880 (basis of record)
Heterosiphonia Montagne, 1842 (additional source)
Hypoglossum Kützing, 1843 (additional source)
Laurencia J.V.Lamouroux, 1813 (additional source)
Laurencia obtusa (Hudson) J.V.Lamouroux, 1813 (additional source)
Lejolisia Bornet, 1859 (additional source)
Lejolisia mediterranea Bornet, 1859 (additional source)
Lophosiphonia Falkenberg, 1897 (additional source)
Myriactula arabica (Kützing) Feldmann, 1937 (additional source)
Pedobesia MacRaild & Womersley, 1974 (additional source)
Petalonia Derbès & Solier, 1850 (additional source)
Phaeophila Hauck, 1876 (additional source)
Phaeophila dendroides (P.Crouan & H.Crouan) Batters, 1902 (additional source)
Polysiphonia Greville, 1823 (additional source)
Polysiphonia denudata (Dillwyn) Greville ex Harvey, 1833 accepted as Carradoriella denudata (Dillwyn) Savoie & G.W.Saunders, 2019 (additional source)
Polysiphonia fucoides (Hudson) Greville, 1824 accepted as Vertebrata fucoides (Hudson) Kuntze, 1891 (additional source)
Polysiphonia tenerrima Kützing, 1843 (additional source)
Prasiola Meneghini, 1838 (additional source)
Pringsheimiella Höhnel, 1920 accepted as Ulvella P.L.Crouan & H.M.Crouan, 1859 (additional source)
Pterocladia J.Agardh, 1851 (additional source)
Pterocladia capillacea (S.G.Gmelin) Bornet, 1876 accepted as Pterocladiella capillacea (S.G.Gmelin) Santelices & Hommersand, 1997 (basis of record)