va·ri·e·tal /vəˈraɪətḷ/
  (a.)變化的,多種的,變種的
  Va·ri·e·tal a. Of or pertaining to a variety; characterizing a variety; constituting a variety, in distinction from an individual or species.
     Perplexed in determining what differences to consider as specific, and what as varietal.   --Darwin.
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