Question: Between the Buddleja and Cleyera genus plants, which is comprised to the most number of species?
Sentence (from "Buddleja curviflora"): Plants in Taiwan have been described as a separate species "Buddleja formosana" and assessed as Critically Endangered by IUCN, but the distinction is not recognized by Li and Leeuwenberg, who sank "formosana" as a synonym.
Relevant evidence: No