In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is

In a typical complete, bisexual and hypogynous flower, the arrangement of floral whorls on the thalamus from the outermost to the innermost, calyx is the whorl of sepals it is the outermost. Corolla is the whorl of petals inside the calyx. Androecium is the whorl of stamens inside the corolla. Gynoecium is the whorl of pistils in the centre of the flower forming the innermost whorl.