Acrochaetiaceae Melchior, 1954 (basis of record)
Acrochaetiales (basis of record)
Acrosiphonia J.Agardh, 1846 (basis of record)
Acrosiphonia arcta (Dillwyn) Gain, 1912 (basis of record)
Acrosiphoniaceae S. Jónsson, 1959 (additional source)
Ahnfeltia Fries, 1836 (basis of record)
Ahnfeltia plicata (Hudson) E.M.Fries, 1836 (basis of record)
Ahnfeltiaceae Maggs & Pueschel, 1989 (basis of record)
Ahnfeltiales (basis of record)
Audouinella Bory de Saint-Vincent, 1823 (basis of record)
Bangia Lyngbye, 1819 (basis of record)
Bangia atropurpurea (Mertens ex Roth) C.Agardh, 1824 (basis of record)
Bangiaceae Duby, 1830 (basis of record)
Blidingia Kylin, 1947 (basis of record)
Blidingia minima (Nägeli ex Kützing) Kylin, 1947 (basis of record)
Bonnemaisoniaceae Schmitz, 1892 (basis of record)
Bonnemaisoniales (additional source)
Bryopsidaceae Bory de Saint-Vincent, 1829 (basis of record)
Callophyllis Kützing, 1843 (basis of record)
Ceramiaceae Dumortier, 1822 (basis of record)
Ceramiales (basis of record)
Ceramium Roth, 1797 (basis of record)
Chaetomorpha Kützing, 1845 (basis of record)
Chaetopeltis Berthold, 1878 (basis of record)
Chaetopeltis orbicularis Berthold, 1878 (basis of record)
Chaetophoraceae Greville, 1824 (basis of record)
Characium A.Braun, 1849 (basis of record)
Chlorococcaceae Blackman & Tansley, 1902 (basis of record)
Chlorococcum Meneghini, 1842 (basis of record)
Chordaria C.Agardh, 1817 (basis of record)
Chordariaceae Greville, 1830 (basis of record)
Chroodactylon Hansgirg, 1885 (basis of record)
Chroodactylon ornatum (C.Agardh) Basson, 1979 (basis of record)
Cladophora Kützing, 1843 (basis of record)
Cladophora coelothrix Kützing, 1843 (basis of record)
Cladophoraceae Wille, 1884 (basis of record)
Coccomyxa Schmidle, 1901 (basis of record)
Corallinaceae Lamouroux, 1812 (basis of record)
Cymodocea K.D.Koenig (basis of record)
Cymodoceaceae Vines (basis of record)
Cystocloniaceae Kützing, 1843 (basis of record)
Delesseria J.V. Lamouroux, 1813 (basis of record)
Delesseriaceae Bory, 1828 (basis of record)
Desmarestia J.V.Lamouroux, 1813 (basis of record)
Desmarestiaceae (Thuret) Kjellman, 1880 (basis of record)
Ectocarpaceae C. Agardh, 1828 (basis of record)
Elachista Duby, 1830 (basis of record)
Endosphaeraceae (basis of record)
Enteromorpha Link, 1820 accepted as Ulva Linnaeus, 1753 (basis of record)
Enteromorpha compressa (Linnaeus) Nees, 1820 accepted as Ulva compressa Linnaeus, 1753 (basis of record)
Enteromorpha intestinalis (Linnaeus) Nees, 1820 accepted as Ulva intestinalis Linnaeus, 1753 (basis of record)
Entocladia Reinke, 1879 (basis of record)
Erythropeltales (basis of record)
Erythropeltidaceae (basis of record)
Erythrotrichia Areschoug, 1850 (basis of record)
Erythrotrichia carnea (Dillwyn) J.Agardh, 1883 (basis of record)
Faucheaceae Strachan, G.W.Saunders & Kraft, 1999 (basis of record)
Gigartina Stackhouse, 1809 (basis of record)
Gigartinaceae Bory, 1828 (basis of record)
Gigartinales (basis of record)
Goniotrichaceae (basis of record)
Gracilaria Greville, 1830 (basis of record)
Gracilaria gracilis (Stackhouse) Steentoft, L.M.Irvine & Farnham, 1995 (basis of record)
Gracilariaceae Nägeli, 1847 (basis of record)
Griffithsia C.Agardh, 1817 (basis of record)
Gymnogongrus C.Martius, 1833 (basis of record)
Halophila Du Petit-Thouars, 1806 (basis of record)
Halophila decipiens Ostenfeld, 1902 (basis of record)
Halopteris Kützing, 1843 (basis of record)
Halymeniaceae Bory, 1828 (basis of record)
Hildenbrandia Nardo, 1834 (basis of record)
Hildenbrandiaceae Rabenhorst, 1868 (basis of record)
Hildenbrandiales (basis of record)
Hydrocharitaceae Jussieu (basis of record)
Kallymenia J.Agardh, 1842 (basis of record)
Kallymeniaceae (J. Agardh) Kylin, 1928 (basis of record)
Kornmanniaceae L.Golden & K.M.Cole, 1986 (basis of record)
Laminariaceae Bory, 1827 (basis of record)
Leptonematella P.C.Silva, 1959 (basis of record)
Lithoderma Areschoug, 1875 (basis of record)
Lithodermataceae Hauck, 1883 (basis of record)
Meiodiscus G.W.Saunders & McLachlan, 1991 (basis of record)
Microspora Thuret, 1850 (basis of record)
Microsporaceae Bohlin, 1901 (basis of record)
Monostroma Thuret, 1854 (basis of record)
Monostromataceae Kunieda, 1934 (basis of record)
Myriogramme Kylin, 1924 (basis of record)
Myrionema Greville, 1827 (basis of record)
Myrionemataceae Nägeli, 1847 (basis of record)
Palmaria Stackhouse, 1802 (basis of record)
Palmariaceae Guiry, 1974 (basis of record)
Palmariales (basis of record)
Pantoneura Kylin, 1919 (basis of record)
Petalonia Derbès & Solier, 1850 (basis of record)
Petalonia fascia (O.F.Müller) Kuntze, 1898 (basis of record)
Petroderma Kuckuck, 1897 (basis of record)
Petroderma maculiforme (Wollny) Kuckuck, 1897 (basis of record)
Peyssonnelia Decaisne, 1841 (basis of record)
Peyssonnelia harveyana P.L.Crouan & H.M.Crouan ex J.Agardh, 1851 (basis of record)
Peyssonneliaceae Denizot, 1968 (basis of record)