Acrochaete leptochaete (Huber) R.Nielsen, 1983 accepted as Ulvella leptochaete (Huber) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013 (additional source)
Acrochaete viridis (Reinke) R.Nielsen, 1979 accepted as Ulvella viridis (Reinke) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013 (additional source)
Acrochaete wittrockii (Wille) R.Nielsen, 1983 accepted as Ulvella wittrockii (Wille) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013 (additional source)
Antithamnion cruciatum (C.Agardh) Nägeli, 1847 (additional source)
Arthrocladia villosa (Hudson) Duby, 1830 (additional source)
Bangia fuscopurpurea (Dillwyn) Lyngbye, 1819 (basis of record)
Blastophysa rhizopus Reinke, 1889 (additional source)
Blidingia marginata (J.Agardh) P.J.L.Dangeard ex Bliding, 1963 (additional source)
Blidingia minima (Nägeli ex Kützing) Kylin, 1947 (additional source)
Bolbocoleon piliferum Pringsheim, 1862 (additional source)
Bryopsis hypnoides J.V.Lamouroux, 1809 (additional source)
Bryopsis plumosa (Hudson) C.Agardh, 1823 (additional source)
Callithamnion corymbosum (Smith) Lyngbye, 1819 (additional source)
Capsosiphon fulvescens (C.Agardh) Setchell & N.L.Gardner, 1920 (additional source)
Ceramium cimbricum H.E.Petersen, 1924 (additional source)
Ceramium circinatum (Kützing) J.Agardh, 1851 (additional source)
Ceramium deslongchampsii Chauvin ex Duby, 1830 (additional source)
Ceramium diaphanum (Lightfoot) Roth, 1806 (additional source)
Ceramium rubrum C.Agardh, 1811 accepted as Ceramium virgatum Roth, 1797 (additional source)
Chaetomorpha aerea (Dillwyn) Kützing, 1849 (additional source)
Chaetomorpha linum (O.F.Müller) Kützing, 1845 (additional source)
Cladophora albida (Nees) Kutzing, 1843 (additional source)
Cladophora dalmatica Kützing, 1843 (additional source)
Cladophora laetevirens (Dillwyn) Kützing, 1843 (additional source)
Cladophora liniformis Kützing, 1849 (additional source)
Cladophora ruchingeri (C.Agardh) Kützing, 1845 (additional source)
Cladophora rupestris (Linnaeus) Kützing, 1843 (additional source)
Cladophora sericea (Hudson) Kützing, 1843 (additional source)
Cladophora vagabunda (Linnaeus) Hoek, 1963 (additional source)
Cladostephus spongiosus (Hudson) C.Agardh, 1817 (additional source)
Corallina officinalis Linnaeus, 1758 (additional source)
Dasya baillouviana (S.G.Gmelin) Montagne, 1841 accepted as Dasya pedicellata (C.Agardh) C.Agardh, 1824 (additional source)
Desmarestia viridis (O.F.Müller) J.V.Lamouroux, 1813 (additional source)
Dictyosiphon chordaria Areschoug, 1847 (additional source)
Ectocarpus fasciculatus Harvey, 1841 (additional source)
Ectocarpus siliculosus (Dillwyn) Lyngbye, 1819 (additional source)
Elachista fucicola (Velley) Areschoug, 1842 (additional source)
Enteromorpha clathrata (Roth) Greville, 1830 accepted as Ulva clathrata (Roth) C.Agardh, 1811 (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 prolifera (O.F.Müller) J.Agardh, 1883 accepted as Ulva prolifera O.F.Müller, 1778 (additional source)
Epicladia perforans (Huber) R.Nielsen, 1980 (additional source)
Erythrotrichia carnea (Dillwyn) J.Agardh, 1883 (additional source)
Eudesme virescens (Carmichael ex Berkeley) J.Agardh, 1882 (additional source)
Eugomontia sacculata Kornmann, 1960 (additional source)
Feldmannia caespitula (J.Agardh) Knoepffler-Péguy, 1970 (basis of record)
Feldmannia irregularis (Kützing) Hamel, 1939 (additional source)
Giraudia sphacelarioides Derbès & Solier, 1851 (additional source)
Gomontia polyrhiza (Lagerheim) Bornet & Flahault, 1888 (additional source)
Leathesia difformis Areschoug, 1847 accepted as Leathesia marina (Lyngbye) Decaisne, 1842 (additional source)
Litosiphon laminariae (Lyngbye) Harvey, 1849 (additional source)
Myrionema strangulans Greville, 1827 (additional source)
Myriotrichia clavaeformis Harvey, 1834 (additional source)
Ostreobium quekettii Bornet & Flahault, 1889 (additional source)
Percursaria percursa (C.Agardh) Rosenvinge, 1893 (additional source)
Petalonia zosterifolia (Reinke) Kuntze, 1898 accepted as Planosiphon zosterifolius (Reinke) McDevit & G.W.Saunders, 2017 (additional source)
Phaeophila dendroides (P.Crouan & H.Crouan) Batters, 1902 (additional source)
Polysiphonia denudata (Dillwyn) Greville ex Harvey, 1833 accepted as Carradoriella denudata (Dillwyn) Savoie & G.W.Saunders, 2019 (additional source)
Polysiphonia elongata (Hudson) Sprengel, 1827 accepted as Carradoriella elongata (Hudson) Savoie & G.W.Saunders, 2019 (additional source)
Polysiphonia fibrillosa (C.Agardh) Sprengel, 1827 accepted as Leptosiphonia fibrillosa (Agardh) Savoie & G.W.Saunders, 2019 (additional source)
Polysiphonia fucoides (Hudson) Greville, 1824 accepted as Vertebrata fucoides (Hudson) Kuntze, 1891 (additional source)
Polysiphonia stricta (Mertens ex Dillwyn) Greville, 1824 (additional source)
Pringsheimiella scutata (Reinke) Marchewianka, 1925 accepted as Ulvella scutata (Reinke) R.Nielsen, C.J.O'Kelly & B.Wysor, 2013 (additional source)
Pseudolithoderma extensum (P.Crouan & H.Crouan) S.Lund, 1959 (additional source)
Pseudopringsheimia confluens (Rosenvinge) Wille, 1909 (additional source)
Pterothamnion plumula (J.Ellis) Nägeli, 1855 (additional source)
Punctaria latifolia Greville, 1830 (additional source)
Punctaria plantaginea (Roth) Greville, 1830 (additional source)
Punctaria tenuissima (C.Agardh) Greville, 1830 (additional source)
Ralfsia verrucosa (Areschoug) Areschoug, 1845 accepted as Pseudoralfsia verrucosa (Areschoug) Parente, Fletcher & G.W.Saunders, 2020 (additional source)
Rhizoclonium tortuosum (Dillwyn) Kützing, 1845 (additional source)
Scytosiphon lomentaria (Lyngbye) Link, 1833 (additional source)
Seirospora interrupta (Smith) F.Schmitz, 1893 (additional source)
Sphacelaria cirrosa (Roth) C.Agardh, 1824 (additional source)
Sphacelaria nana Nägeli ex Kützing, 1855 accepted as Sphacelorbus nanus (Nageli ex Kützing) Draisma, Prud'homme & H.Kawai, 2010 (additional source)
Spongomorpha aeruginosa (Linnaeus) Hoek, 1963 (additional source)
Spongomorpha arcta (Dillwyn) Kützing, 1849 accepted as Acrosiphonia arcta (Dillwyn) Gain, 1912 (additional source)
Stictyosiphon soriferus (Reinke) Rosenvinge, 1935 (additional source)
Stilophora tenella (Esper) P.C.Silva, 1996 (additional source)
Streblonema parasiticum (Sauvageau) De Toni, 1895 (additional source)
Streblonema stilophorae (P.L.Crouan & H.M.Crouan) Kylin, 1908 accepted as Microspongium stilophorae (P.Crouan & H.Crouan) Cormaci & G.Furnari, 2012 (additional source)
Streblonema tenuissimum Hauck, 1884 accepted as Microspongium stilophorae (P.Crouan & H.Crouan) Cormaci & G.Furnari, 2012 (additional source)
Striaria attenuata (Greville) Greville, 1828 (additional source)
Stypocaulon scoparium (Linnaeus) Kützing, 1843 accepted as Halopteris scoparia (Linnaeus) Sauvageau, 1904 (additional source)
Ulothrix flacca (Dillwyn) Thuret, 1863 (additional source)
Ulothrix implexa (Kützing) Kützing, 1849 (additional source)
Ulva rigida C.Agardh, 1823 (additional source)
Ulvaria obscura (Kützing) P.Gayral ex C.Bliding, 1969 (additional source)