tetraspermous plant

from The Collaborative International Dictionary of English v.0.48

Tetraspermous \Tet`ra*sper"mous\, a. [Tetra- + Gr. ? a seed.]
   (Bot.)
   Having four seeds.
   [1913 Webster]

   {Tetraspermous plant}, a plant which produces four seeds in
      each flower.
      [1913 Webster]