Which genus has a smaller distribution, Barklya or Illicium?
Barklya: Barklya is a genus of Australian trees in the legume family, Fabaceae. Barklya:  Recorded from Queensland and New South Wales in vine forest and softwood scrub. Illicium:  It has a disjunct distribution, with most species native to eastern Asia and several in parts of North America, including the southeastern United States, Mexico, and the Caribbean.
Barklya