Question
Describe the structure of a typical flower.
Solution
Flower is a modified shoot. It is attached to the stem by a stalk called pedicel. Swollen tip of the pedicel is called thalamus. On the thalamus are arranged four whorls of floral leaves. The outermost of whorl is called calyx which is formed of green leaf like speals. Second whorl is called corolla which is coloured and formed of petals. Third whorl is called androecium which is formed of stamens. Fourth (innermost) whorl is called gynoecium or pistil and is formed of carpels. Stamen has two parts—filament and anther which produces grainlike structures called pollens. Stamen is the male reproductive structure of the plant. Pistil has three parts-basal ovary, long style and stigma at the top. Pistil is the female reproductive structure of the plant.
Longitudinal section of a typical flower
Longitudinal section of a typical flower
