• Bucklandia A.T. Brongniart, 1828 † accepted as Conites Sternberg, 1823 † [Family: Cycadeoideaceae]
• Bucklandia H. Roivainen, 1955 (unaccepted) [Family: Grimmiaceae]
• Bucklandia R. Brown ex W. Griffith, 1836 accepted as Exbucklandia R.W. Brown, 1946 [Family: Hamamelidaceae]
• Bucklandia Sternberg, 1825 † accepted as Conites Sternberg, 1823 † [Family: Cycadeoideaceae]