stylopodium

from WordNet (r) 3.0 (2006)

stylopodium
    n 1: an enlargement at the base of the style in some
         Umbelliferae

from The Collaborative International Dictionary of English v.0.48

Stylopodium \Sty`lo*po"di*um\, n.; pl. {Stylopodia}. [NL. See
   {Style}, and {Podium}.] (Bot.)
   An expansion at the base of the style, as in umbelliferous
   plants.
   [1913 Webster]