Which genus has more species in it, Dipteronia or Syringa?
Dipteronia: Dipteronia is a genus of two living and one extinct species, regarded in the soapberry family Sapindaceae "sensu lato" after Angiosperm Phylogeny Group (APG I 1998, APG II 2003) and more recently (Harrington "et al." 2005) )or traditionally by several authors in Aceraceae, related to the maples.
i don't know