Sexual Reproduction in Flowering Plants — BIOLOGY STD 12 Science — Question

Anther is a fertile part of stamens. Each anther has two lobes or is bilobed. The lobes are connected. Each anther lobe contains two chambers called pollen chamber or microspores. Thus, we see that each anther consist of four Microsporangia. This is a typical structure of anther and is known as dithecous. In Monothecus conditions, there is only one lobe and two Mirosporangia in each anther.