That part of a plant destined to produce seed, and hence
   including one or both of the sexual organs; an organ or combination of
   the organs of reproduction, whether inclosed by a circle of foliar
   parts or not. A complete flower consists of two essential parts, the
   stamens and the pistil, and two floral envelopes, the corolla and
   callyx. In mosses the flowers consist of a few special leaves
   surrounding or subtending organs called archegonia. See Blossom, and
   Corolla.