Solution

Tetradynamous stamens: a flower has six stamens arranged in two whorls, four long (inner) and two short (outer).
This is a characteristic feature of family Cruciferae (Brassicaceae), e.g. mustard and radish.
Malvaceae has monadelphous stamens, Solanaceae has epipetalous stamens, and Liliaceae has epiphyllous stamens.
So tetradynamous condition occurs in Cruciferae.

Concept Six stamens, four long and two short

Morphology of Flowering Plants in past papers

133 questions from this chapter have appeared across 26 exam years.