亚龙木属Alluaudia (Drake) Drake 1903
Alluaudia ascendens (Drake) Drake 1903
Alluaudia comosa (Drake) Drake 1903
Alluaudia dumosa (Drake) Drake 1903
龙树科
Alluaudia humbertii Choux 1934
Alluaudia montagnacii Rauh 1961 – 可能是 A. ascendens和 A. procera的杂交种。
Alluaudia procera (Drake) Drake 1903 – 容易生长,有许多种被栽培。
Alluaudiopsis属 Humbert & Choux 1934
Alluaudiopsis fiherensis Humbert & Choux 1934
Alluaudiopsis marnieriana Rauh 1961
Decaria属 Choux 1929
Decaria madagascariensis Choux 1929
Didierea属 Baillon1880
Didierea madagascariensis Baillon 1880
Didierea trolliiCapuron & Rauh 1961