Which genus was described first, Ixiolirion or Allosyncarpia?
Ixiolirion Ixiolirion is a genus of flowering plants native to central and southwest Asia, first described as a genus in 1821. Recent classifications place the group in the monogeneric family Ixioliriaceae in the order Asparagales of the monocots. In earlier systems of classification, it was usually placed in the family Amaryllidaceae.
Gonolobus Gonolobus is a genus of plant in family Asclepiadaceae, first described in 1803. It is native to South America, Central America, Mexico, the West Indies, and the southern United States.