Question

What are the definitions of different parts of a flowering plant?
i.e. anther, stigma, polengrain etc.

Answer 1

the part of a stamen that contains the pollen.

In a flower, this landing zone and entrance is the stigma. It plays a pivotal role in reproduction. Most stigmas are adapted to trap pollen with hairs, flaps and other surfaces to increase their efficiency. Most stigmas are covered with a waxy, sticky substance.

Pollen is a fine to coarse powdery substance comprising pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm ...

Answer 2

Anther – the part of the stamen when pollen grains is produc.

Stigma – The part of the pistil when pollen germinate.
Pollen grain – coarse powdery substance.
Hope this answer helps you.....