Question

Define hypogynous, perigynous and epigynous flowers.

Answer 1

• The flower is said to be hypogynous if sepals, petals and stamens are inserted below the ovary.
  
• In perigynous flowers the thalamus forms a cup-shaped structure around the ovary, and sepals, petals and stamens appear to be inserted on the rim of the cup.
  
• When the thalamus completely encloses the ovary and fuses with the ovary wall and sepals, petals and stamens seem to arise above the ovary, the flower is said to be epigynous.