Acetabularia J.V.F. Lamouroux, 1812 (habitat flag source)
Acrosiphoniaceae S. Jónsson, 1959 accepted as Ulotrichaceae Kützing, 1843 (habitat flag source)
Adinimonadaceae accepted as Desmocapsaceae (habitat flag source)
Adinimonas J. Schiller, 1928 (habitat flag source)
Anadyomenaceae Kützing, 1843 (habitat flag source)
Boodleaceae Børgesen, 1925 (habitat flag source)
Borodinellaceae accepted as Chlorosarcinaceae Bourrelly ex Groover & Bold, 1969 (habitat flag source)
Bryopsidaceae Bory de Saint-Vincent, 1829 (habitat flag source)
Capsosiphonaceae V.J. Chapman, 1952 accepted as Ulotrichaceae Kützing, 1843 (habitat flag source)
Caulerpaceae Kützing, 1843 (habitat flag source)
Ceratoperidiniaceae A.R. Loeblich III, 1980 (habitat flag source)
Chaetosiphonaceae Blackman & Tansley, 1902 (habitat flag source)
Chlorococcaceae (habitat flag source)
Chytriodiniaceae (habitat flag source)
Coccomyxaceae Smith, 1933 (habitat flag source)
Codiaceae Kützing, 1843 (habitat flag source)
Codiolaceae accepted as Ulotrichaceae Kützing, 1843 (habitat flag source)
Desmocapsa Pascher, 1914 (habitat flag source)
Desmococcus F. Brand, 1925 (habitat flag source)
Dictyosphaeriaceae G.S. West, 1916 accepted as Chlorellaceae Brunnthaler, 1913 (habitat flag source)
Dissodium T.H. Abé, 1941 (habitat flag source)
Hormotilaceae (habitat flag source)
Hydrodictyaceae (habitat flag source)
Micractiniaceae accepted as Chlorellaceae Brunnthaler, 1913 (habitat flag source)
Oocystaceae Bohlin, 1901 (habitat flag source)
Palmellopsidaceae Korshikov, 1953 (habitat flag source)
Prasiolaceae Blackman & Tansley, 1902 (habitat flag source)
Pyrophacaceae Lindemann, 1928 accepted as Pyrocystaceae (Schütt, 1896) Lemmermann, 1899 (habitat flag source)
Siphonocladaceae Schmitz, 1879 (habitat flag source)
Spiromonadaceae accepted as Amphimonadidae (habitat flag source)
Udoteaceae J.G. Agardh, 1887 (habitat flag source)
Ulvaceae J.V. Lamouroux ex Dumortier, 1822 (habitat flag source)
Ulvellaceae Schmidle, 1899 (habitat flag source)
Valoniaceae Kützing, 1849 (habitat flag source)
Zooxanthellaceae accepted as Symbiodiniaceae Fensome, Taylor, Norris, Sarjeant, Wharton & Williams, 1993 (habitat flag source)