Source : Webster's Revised Unabridged Dictionary (1913)

Floral \Flo"ral\, a. [L. Floralis belonging to Flora: cf. F.
   floral. See {Flora}.]
   1. Pertaining to Flora, or to flowers; made of flowers; as,
      floral games, wreaths.

   2. (Bot.) Containing, or belonging to, a flower; as, a floral
      bud; a floral leaf; floral characters. --Martyn.

   {Floral envelope} (Bot.), the calyx and corolla, one or the
      other of which (mostly the corolla) may be wanting.

Source : WordNet®

floral envelope
     n : collective term for the outer parts of a flower consisting
         of the calyx and corolla and enclosing the stamens and
         pistils [syn: {perianth}, {chlamys}, {perigone}, {perigonium}]