• Assia Gerlach, 1957 accepted as Anonchus Cobb, 1913
• Bassia Allioni, 1766 [Family: Amaranthaceae]
• Bassia J.G. König ex Linnaeus, 1771 accepted as Madhuca Hamilton ex J.F. Gmelin, 1791 [Family: Sapotaceae]
• Bassia Jousseaume, 1880 † accepted as Hexaplex Perry, 1810 [Family: Muricidae]
• Bassia L. Agassiz, 1862 [Family: Abylidae]
• Bassia Quoy & Gaimard in de Blainville, 1830 [Family: Abylidae]
• Cassia Lamarck, 1801 accepted as Cassis Scopoli, 1771 [Family: Cassidae]
• Cassia Linnaeus, 1753 [Family: Fabaceae]
• Fassia R.W.G. Dennis, 1964
• Lassia Baillon, 1858 accepted as Tragia Linnaeus, 1753
• Massia Balansa, 1890 accepted as Eriachne R. Brown, 1810
• Sassia Bellardi, 1873 [Family: Ranellidae]
• Sassia Molina, 1782 accepted as Oxalis Linnaeus, 1753 [Family: Oxalidaceae]
• Tassia Druce, 1910 accepted as Tascia Walker, 1856 [Family: Zygaenidae]
• Tassia H. Sydow & P. Sydow, 1919 [Family: Ascomycota incertae sedis]
• Valisia Wiebes, 1993 † (uncertain)
• Vanesia Adams, 1861 (uncertain)
• Varasia Philippi, 1860 (uncertain)
• Vascoa A.P. de Candolle, 1825 accepted as Rafnia Thunberg, 1800
• Vaselia Van Tieghem, 1902 accepted as Elvasia A.P. de Candolle, 1811
• Vaseya Thurber, 1863 accepted as Muhlenbergia Schreber, 1789
• Vasilia Gorochov, 1988
• Vassobia Rusby, 1907
• Vastina Ehrmann, 1929 (uncertain)
• Vasula Mörch, 1860
• Vossia Adanson, 1763 (unaccepted) [Family: Aizoaceae]
• Vossia Alexeyev, 1992 accepted as Uroteuthis Rehder, 1945 [Family: Loliginidae]
• Vossia Brunner, 1891 [Family: Tettigoniidae]
• Vossia Thümen, 1879 accepted as Neovossia Körnicke, 1879 [Family: Tilletiaceae]
• Vossia Wallich & Griffith, 1836 [Family: Poaceae]
• Yassia Jones, 1930 †