car·po·phore /ˈkɑrpəˌfor, ˌfɔr/
  心皮柄
  Car·po·phore n.  Bot. A slender prolongation of the receptacle as an axis between the carpels, as in Geranium and many umbelliferous plants.
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  carpophore
       n : a slender stalk that furnishes an axis for a carpel