Which genus has more species, Alyxia or Ranunculus?
Alyxia:  It contains at present 106 species, but "Alyxia stellata" and "A. tisserantii" are very variable, might be cryptic species complexes, and are need of further study. Ranunculus: Ranunculus is a genus of about 500 species (Ranunculaceae)] of plants in the Ranunculaceae.
Ranunculus