Apiochloris Pascher, 1930 (habitat flag source)
Apiococcus Korshikov, 1926 (habitat flag source)
Balticola Droop, 1956 (habitat flag source)
Cephalomonas Higinbotham, 1942 (habitat flag source)
Chaetobolus Rosenvinge, 1893 (habitat flag source)
Characiochloridaceae Skuja, 1948 (habitat flag source)
Chlainomonas H.R. Christen, 1959 (habitat flag source)
Chlorangiellaceae Bourrelly ex Fott (habitat flag source)
Chlorhormidium B. Fott, 1960 (habitat flag source)
Chlorobrachis Korshikov, 1925 (habitat flag source)
Chloroceras Schiller, 1927 (habitat flag source)
Chloronephris Pascher & Jahoda, 1928 (habitat flag source)
Chrooderma F.E. Fritsch, 1942 accepted as Cephaleuros Kunze ex E.M. Fries, 1832 (habitat flag source)
Chroolepus C.A. Agardh, 1824 accepted as Trentepohlia Martius, 1817 (habitat flag source)
Closteriaceae Bessey, 1907 (habitat flag source)
Costatochloris H. Ettl & O. Ettl, 1959 (habitat flag source)
Cylindrocapsaceae N. Wille in Warming, 1884 (habitat flag source)
Cylindrocapsopsis M.O.P. Iyengar, 1957 (habitat flag source)
Epibolium Printz, 1916 (habitat flag source)
Gigantochloris Pascher, 1927 (habitat flag source)
Gloeotilopsis Iyengar & Philipose, 1956 (habitat flag source)
Granulochloris Pascher & Jahoda, 1928 (habitat flag source)
Heterothrichopsis Iyengar & Kanthamma, 1941 (habitat flag source)
Hormidiella M.O.P. Iyengar & S. Kanthamma, 1940 (habitat flag source)
Hormidiopsis Heering in Pascher, 1914 (habitat flag source)
Hormidium Kützing, 1843 (habitat flag source)
Hormospora Brébisson, 1839 (habitat flag source)
Hyaliella Pascher, 1913 (habitat flag source)
Hypnomonadaceae (habitat flag source)
Hypnomonas Korshikov, 1926 (habitat flag source)
Korschikoffia Pascher, 1927 (habitat flag source)
Kremastochloris Pascher, 1942 (habitat flag source)
Lochmium Printz, 1916 (habitat flag source)
Microsporopsis W. Vischer, 1940 (habitat flag source)
Nautocapsa H. Ettl & O. Ettl, 1959 (habitat flag source)
Nautococcaceae accepted as Chlorococcaceae (habitat flag source)
Nautococcopsis L. Geitler, 1943 accepted as Chlorochytrium Cohn, 1872 (habitat flag source)
Palmellaceae Decaisne, 1842 (habitat flag source)
Papenfussiomonas Desikachary, 1972 (habitat flag source)
Pascheriella Korshikov, 1928 accepted as Pascherina P.C. Silva, 1959 (habitat flag source)
Pedinoperopsis Korshikov, 1938 (habitat flag source)
Phyllariochloris Pascher & Jahoda, 1928 (habitat flag source)
Phyllomonas Korshikov, 1923 accepted as Phyllariochloris Pascher & Jahoda, 1928 (habitat flag source)
Phymatodocis Nordstedt, 1877 (habitat flag source)
Physolinum Printz, 1921 (habitat flag source)
Pleurothamnion Borzì, 1892 (habitat flag source)
Psephotaxus W. West & G.S. West, 1897 (habitat flag source)
Pseudendocloniopsis Vischer, 1933 (habitat flag source)
Pseudocarteria H. Ettl in Komárek & H. Ettl, 1958 (habitat flag source)
Pseudoschizomeris T. Deason & H. Bold, 1960 (habitat flag source)
Quadrichloris Fott, 1959 (habitat flag source)
Radiosphaera J.W. Snow in Ward & Whipple, 1918 (habitat flag source)
Raphidonemopsis T. Deason, 1969 (habitat flag source)
Rhizothallus P.[J.L.] Dangeard, 1931 (habitat flag source)
Schizogoniaceae accepted as Prasiolaceae Blackman & Tansley, 1902 (habitat flag source)
Selenochloris Pascher, 1927 (habitat flag source)
Sphaerellocystis Ettl, 1960 (habitat flag source)
Spinoclosterium C. Bernard, 1909 (habitat flag source)
Spirogonium Pascher, 1927 (habitat flag source)
Stomatochroon Palm, 1934 (habitat flag source)
Tetrablepharis Senn ex Wille in A. Engler & K. Prantl, 1909 (habitat flag source)
Tetrachloris A. Pascher & R. Jahoda, 1928 accepted as Quadrichloris Fott, 1959 (habitat flag source)
Tetratoma Bütschli in Bronn, 1884 (habitat flag source)
Tingitanella Bourrelly & Gayral, 1950 (habitat flag source)
Triploceras J.W. Bailey, 1851 (habitat flag source)
Tussetia Pascher, 1927 (habitat flag source)
Ulothrix Kützing, 1833 (habitat flag source)
Ulotrichopsis L. Wichmann, 1937 (habitat flag source)
Ulvella beesleyi F.E. Fritsch, 1927 accepted as Protoderma beesleyi (F.E. Fritsch) Printz, 1964 (habitat flag source)
Ulvella frequens Butcher, 1932 accepted as Protoderma frequens (Butcher) Printz, 1964 (habitat flag source)
Wislouchiella Skvortzov, 1925 (habitat flag source)