STRUCTURE OF BISEXUAL FLOWER - DEFINITION

• A flower which contains both male and female reproductive organs is called as a bisexual flower.
• The male reproductive organ is called as an androecium and the female reproductive organ is called as a gynoecium.
• A bisexual flower consists of calyx, corolla, stamens and carpel.
• A unit of calyx is called as a sepal. Sepals are green in colour and are present just above the stalk of the flower.
• A unit of corolla is called as a petal. Petals have different colours and are present above the sepals.
• Androecium is the male reproductive part of the flower and is also called as a stemen. Stamen is made up of an anther and a filament.
• Gynoecium is the female reproductive part of the flower and is also called as a carpel. The parts of the carpel are style, stigma and ovary.

STAMEN AND PISTIL - DEFINITION

• Stamens are the male reproductive parts of the flower.
• The stamens are collectively known as androecium.
• Stamens contain a stalk called filament and a sac-like structure known as anther.
• The anther has pollen grains which are transferred to the stigma of the flower for germination.
• The collection of anther is known as androecium.
• The pistil is the female part of the plant.
• It contains ovary, style and stigma.
• The collection of the pistil is known as gynoecium.