​using suitable diagram explain the structure of male and female sex organs of angiosperms?

Androecium

• The androecium consists of whorls of stamen.

• The stamen consists of the filament (long and slender stalk) and anther (bilobed structure).

• Filament is attached to the thalamus or to the petal.

• Anther:

  • A typical anther is bilobed and each lobe is dithecous (consists of two theca).

  • Theca are separated by a longitudinal groove running lengthwise.

  • The microsporangia are located at the corners, two in each theca. They further develop to form pollen sacs, which contain the pollen grains.

• The gynoecium represents the female reproductive part of a flower.

• Each pistil consists of:

  • Stigma − Receives the pollen grains

  • Style − Elongated, slender part below the stigma

  • Ovary − Bulged basal part containing the placenta, which is located inside the ovarian locule (cavity)

  • The placenta contains the megasporangia or ovules.