Androecium (whorl of Stamens):-

• Androecium consists of a whorl of stamens. Their number and length are variable in flowers of different species.

A stamen has 2 parts:-

• a. Filament: The long and slender stalk. Its proximal end is attached to the thalamus or the petal of the flower.
• b. Anther: The terminal and typically bilobed structure.
• Each lobe has 2 thecae, i.e., they are dithecous. Often a longitudinal groove runs lengthwise, separating the theca.