Source : Webster's Revised Unabridged Dictionary (1913)

Andropetalous \An`dro*pet"al*ous\, a. [Gr. 'anh`r, 'andro`s, man
   + ? leaf.] (Bot.)
   Produced by the conversion of the stamens into petals, as
   double flowers, like the garden ranunculus. --Brande.