1. Genus Aerosphaera Gerneck, 1907
2. Genus Amphikrikos Korshikov, 1953
3. Genus Bernardia Playfair, 1917
4. Genus Bohlinia (Lemmermann) Wille
5. Genus Catenocystis F.Hindák, 1988
6. Genus Cerasterias Reinsch, 1867
7. Genus Chodatella Lemmermann
8. Genus Chodatellopsis Korshikov, 1953
9. Genus Chondrosphaera Skuja, 1964
10. Genus Coenolamellus A.I.Proshkina-Lavrenko, 1966
11. Genus Conradia Kufferath, 1914
12. Genus Cryocystis Kol ex Komárek & Fott, 1983
13. Genus Dactylococcus Nägeli, 1849
14. Genus Dendrocystis Iyengar, 1962
15. Genus Densicystis X.Liu, H.Zhu, H.Song, Q.Wang, X.Xiong, C.Wu, G.Liu & Z.Hu, 2017
16. Genus Didymocystis Korshikov, 1953
17. Genus Droopiella Darienko, Rad-Menéndez, Campbell & Pröschold, 2019
18. Genus Ecballocystis Bohlin, 1897
19. Genus Ecballocystopsis Iyengar, 1933
20. Genus Ecdysichlamys G.S.West, 1912
21. Genus Echinocoleum C.-C.Jao & K.T.Lee, 1947
22. Genus Eremosphaera De Bary, 1858
23. Genus Ettliella F.Hindák, 1988
24. Genus Euchlorocystis X.Liu, H.Zhu, H.Song, Q.Wang, X.Xiong, C.Wu, G.Liu & Z.Hu, 2017
25. Genus Fotterella R.Buck, 1978
26. Genus Franceia Lemmermann, 1898
27. Genus Glochiococcus G.B.De Toni, 1888
28. Genus Gloeocystopsis G.M.Smith, 1916
29. Genus Gloeotaenium Hansgirg, 1890
30. Genus Gloxidium Korshikov, 1931
31. Genus Granulocystis Hindák, 1977
32. Genus Granulocystopsis Hindák, 1977
33. Genus Hemichloris Tschermak-Woess & Friedmann, 1984
34. Genus Hyalochlorella R.O.Poyton, 1970
35. Genus Jaagia Vischer, 1950
36. Genus Juranyiella Hortobagyi, 1962
37. Genus Keriochlamys Pascher, 1943
38. Genus Kirchneriellosaccus A.K.M.N.Islam, 1969
39. Genus Lagerheimia R.Chodat, 1895
40. Subfamily Makinoelloideae Stenclová, 2017
    1. Genus Elongatocystis L.Krienitz & C.Bock, 2011
    2. Genus Makinoella Okada, 1949
    3. Genus Reticulocystis X.D.Liu, G.X.Liu & Z.Y. Hu, 2020
    4. Genus Willea Schmidle, 1900
41. Genus Micracantha Korshikov, 1953
42. Genus Mycacanthococcus Hansgirg, 1890
43. Genus Mycotetraëdron Hansgirg, 1890
44. Genus Nephrochlamys Korshikov, 1953
45. Genus Oocystaenium Gonzalves & Mehra, 1959
46. Genus Oocystella Lemmermann, 1903
47. Genus Oocystidium Korshikov, 1953
48. Genus Oocystis Nägeli ex A.Braun, 1855
49. Subfamily Oocystoideae Korshikov, 1953
    1. Genus Kufferathiella Molinari, Mayta & Guiry, 2021
50. Genus Oocystopsis H.Heynig, 1991
51. Genus Oonephris Fott, 1964
52. Genus Ooplanctella Pazoutova, Skaloud & Nemjova, 2010
53. Genus Pachycladella P.C.Silva, 1970
54. Genus Pilidiocystis Bohlin, 1897
55. Genus Planctonema Schmidle, 1903
56. Genus Planctonemopsis Liu, Zhu, Liu, Hu & Liu, 2017
57. Genus Planktosphaerella Reisigl, 1964
58. Genus Pseudobohlina Bourrelly, 1948
59. Genus Pseudochlorococcum P.A.Archibald, 1970
60. Genus Pseudococcomyxa Korshikov, 1953
61. Genus Quadricoccopsis X.Liu, H.Zhu, H.Song, B.Liu, Q.Wang, G.Liu & Z.Hu, 2018
62. Genus Quadricoccus Fott, 1948
63. Genus Rayssiella Edelstein & Prescott, 1964
64. Genus Reinschiella De Toni, 1889
65. Genus Rhombocystis J.Komárek, 1983
66. Genus Richteriella Lemmermann, 1897
67. Genus Saturnella Mattauch & Pascher, 1936
68. Genus Selenoderma K.Bohlin, 1897
69. Genus Sestosoma Hortobagyi, 1947
70. Genus Siderocystopsis Swale, 1964
71. Genus Staurophanum Turner, 1892
72. Genus Tetrachlorella Korshikov, 1939
73. Genus Thelesphaera Pascher, 1943
74. Genus Trigonidiella P.C.Silva, 1970
75. Genus Trochiscia Kützing, 1834
76. Genus Conococcus H.J.Carter, 1869 (uncertain)
77. Genus Discocytis Skuja, 1959 (uncertain)
78. Genus Kruegera Heering, 1906 (uncertain)
79. Genus Lagerheimiella Boedijn, 1940 (uncertain > nomen dubium)
80. Genus Scotiella Fritsch, 1912 (uncertain > nomen dubium)
81. Genus Trichocystis Kützing, 1849 (uncertain)
82. Genus Calyptobactron Geitler, 1924 accepted as Desmatractum West & G.S. West, 1902
83. Genus Chlorellopsis Zeitler, 1954 accepted as Pseudochlorella J.W.G.Lund, 1955
84. Genus Chlorosphaera Henfrey, 1859 accepted as Eremosphaera De Bary, 1858
85. Genus Chlorothecium Krüger, 1894 accepted as Chloroidium Nadson, 1906
86. Genus Crucigeniella Lemmermann, 1900 accepted as Crucigenia Morren, 1830 (synonym)
87. Genus Hydrocystis W.B.Turner, 1892 accepted as Nephrocytium Nägeli, 1849
88. Genus Pachycladon G.M.Smith, 1924 accepted as Pachycladella P.C.Silva, 1970
89. Genus Palmellococcus R.Chodat, 1894 accepted as Chlorella M.Beijerinck, 1890 (synonym)
90. Genus Schizochlamydella Korshikov, 1953 accepted as Phaeoschizochlamys Lemmermann, 1898 (synonym)
91. Genus Scotiellocystis B.Fott, 1976 accepted as Scotiellopsis Vinatzer, 1975
92. Genus Siderocystis Korshikov, 1953 accepted as Siderocystopsis Swale, 1964
93. Genus Tetraceras Chodat, 1894 accepted as Lagerheimia R.Chodat, 1895
94. Genus Tetratomococcus Korshikov, 1953 accepted as Quadricoccus Fott, 1948
95. Genus Trigonidium Pascher, 1932 accepted as Trigonidiella P.C.Silva, 1970 (synonym)

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