1. Genus Actinodontum S.Alfinito & Coesel, 2013
2. Genus Actinotaenium (Nägeli) Teiling, 1954
3. Genus Allorgeia Gauthier-Lièvre, 1958
4. Genus Amscottia Grönblad, 1954
5. Genus Bambusina Kützing ex Kützing, 1849
6. Genus Botryocystis Kützing, 1843
7. Genus Bourrellyodesmus Compère, 1977
8. Genus Brachytheca A.A.Gontcharov & M.Watanabe, 1999
9. Genus Cosmarium Corda ex Ralfs, 1848
10. Genus Cosmocladium Brébisson, 1856
11. Genus Croasdalea C.E.M.Bicudo & C.T.J.Mercante, 1993
12. Genus Cruciangulum D.B.Williamson, 1999
13. Genus Cylindriastrum (W.B.Turner) G.M.Palamar-Mordvintseva
14. Genus Desmidium C.Agardh ex Ralfs, 1848
15. Genus Didymidium P.F.Reinsch, 1867
16. Genus Docidium Brébisson ex Ralfs, 1848
17. Genus Euastridium West & G.S.West, 1908
18. Genus Euastrum Ehrenberg ex Ralfs, 1848
19. Genus Groenbladia Teiling, 1952
20. Genus Haplotaenium T.Bando, 1988
21. Genus Heimansia Coesel, 1993
22. Genus Hyalotheca Ehrenberg ex Ralfs, 1848
23. Genus Ichthyocercus West & G.S.West, 1897
24. Genus Ichthyodontum A.M.Scott & G.W.Prescott, 1956
25. Genus Mateola R.Salisbury, 1936
26. Genus Micrasterias C.Agardh ex Ralfs, 1848
27. Genus Octacanthium (Hansgirg) P.Compère, 1996
28. Genus Onychonema G.C.Wallich, 1860
29. Genus Oocardium Nägeli, 1849
30. Genus Pachyphorium Palamar-Mordintseva, 1980
31. Genus Phycastrum Kützing ex Kützing, 1849
32. Genus Phymatodocis Nordstedt, 1877
33. Genus Pleurotaenium Nägeli, 1849
34. Genus Prescottiella C.E.M.Bicudo ex Levanets & Janse van Vuuren, 2023
35. Genus Pseudomicrasterias C.B. Araújo, C.E.M. Bicudo, Stastny & Skaloud, 2022
36. Genus Raphidiastrum Palamar-Mordvintseva, 1976
37. Genus Sphaerozosma Corda ex Ralfs, 1848
38. Genus Spinocosmarium G.W.Prescott & A.M.Scott, 1942
39. Genus Spondylosium Brébisson ex Kützing, 1849
40. Genus Staurastrum Meyen ex Ralfs, 1848
41. Genus Staurodesmus Teiling, 1948
42. Genus Streptonema Wallich, 1860
43. Genus Teilingia Bourrelly, 1964
44. Genus Tetmemorus Ralfs ex Ralfs, 1848
45. Genus Trapezodesmus Kufferath, 1932
46. Genus Triplastrum Iyengar & Ramanathan, 1942
47. Genus Triploceras Bailey, 1851
48. Genus Vincularia K.Fuciková & J.Kastovsky, 2009
49. Genus Xanthidium Ehrenberg ex Ralfs, 1848
50. Genus Aptogonum Ralfs, 1848 accepted as Desmidium C.Agardh ex Ralfs, 1848
51. Genus Arthrodesmus Ehrenberg ex Ralfs, 1848 accepted as Staurodesmus Teiling, 1948 (synonym)
52. Genus Calocylindrus (C.Nägeli) O.Kirchner, 1878 accepted as Cosmarium Corda ex Ralfs, 1848 (synonym)
53. Genus Cosmoastrum G.M.Palamar-Mordvintseva, 1976 accepted as Staurastrum Meyen ex Ralfs, 1848
54. Genus Didiymidium accepted as Didymidium P.F.Reinsch, 1867
55. Genus Didymocladon J.Ralfs, 1848 accepted as Staurastrum Meyen ex Ralfs, 1848
56. Genus Disphinctium accepted as Dysphinctium Nägeli, 1849 accepted as Cosmarium Corda ex Ralfs, 1848 (misspelling)
57. Genus Dysphinctium Nägeli, 1849 accepted as Cosmarium Corda ex Ralfs, 1848
58. Genus Eaustrum accepted as Euastrum Ehrenberg ex Ralfs, 1848
59. Genus Gymnozyga Ehrenberg ex Kützing, 1849 accepted as Bambusina Kützing ex Kützing, 1849
60. Genus Hexasterias Ehrenberg ex Agassiz, 1843 accepted as Staurastrum Meyen ex Ralfs, 1848
61. Genus Holacanthum (P.M.Lundell) N.Wille, 1890
62. Genus Holocystis Hassall ex Wallich, 1876
63. Genus Leptozosma W.B.Turner, 1885 accepted as Desmidium C.Agardh ex Ralfs, 1848
64. Genus Leuronema G.C.Wallich accepted as Sphaerozosma Corda ex Ralfs, 1848
65. Genus Nothocosmarium Raciborski, 1889 accepted as Cosmarium Corda ex Ralfs, 1848
66. Genus Pentasterias Ehrenberg, 1836 accepted as Staurastrum Meyen ex Ralfs, 1848
67. Genus Pleurenterium (P.M.Lundell) G.Lagerheim, 1888 accepted as Staurastrum Meyen ex Ralfs, 1848
68. Genus Pleurotaeniopsis (P.Lundell) Lagerheim, 1887 accepted as Cosmarium Corda ex Ralfs, 1848
69. Genus Scottia Grönblad, 1954 accepted as Amscottia Grönblad, 1954
70. Genus Tetrachastrum R.V.Dixon, 1859
71. Genus Trichodictyon Kützing, 1849 accepted as Penium Brébisson ex Ralfs, 1848
72. Genus Arthrorhabdium Ehrenberg (uncertain)
73. Genus Asteroxanthium Kützing, 1849 (uncertain)
74. Genus Cosmaridium F.Gay, 1884 (uncertain)
75. Genus Dichotomum W.West & G.S.West, 1896 (uncertain)
76. Genus Didymoprium Kützing ex J.Ralfs, 1848 (uncertain)
77. Genus Docidiopsis Raciborski (uncertain)
78. Genus Glaeoprium Berkeley (uncertain > nomen dubium)
79. Genus Isthmosira Kützing, 1845 (uncertain > nomen dubium)
80. Genus Pithiscus Kützing, 1849 (uncertain)
81. Genus Pleurosicyos A.K.J. Corda ex O. Kuntze, 1898 (uncertain)
82. Genus Schizacanthum P.M.Lundell (uncertain)
83. Genus Strephocystis Corda, 1839 (uncertain > nomen dubium)
84. Genus Tessarthonia Turpin, 1828 (uncertain > nomen dubium)
85. Genus Ursinella Turpin, 1828 (uncertain)
86. Genus Xanthidiastrum Delponte (uncertain > nomen dubium)

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