The Collaborative International Dictionary of English v.0.48:

Gynandria \Gy*nan"dri*a\ (j[i^]*n[a^]n"dr[i^]*[.a]), n. pl. [NL.
   See Gynandrian.] (Bot.)
   A class of plants in the Linn[ae]an system, whose stamens
   grow out of, or are united with, the pistil. Gynandrian