Structure

Pteridophyte

Gymnosperm

Angiosperm

Main

reproductive

part

Gametophyte

bears antheridia

and archegonia 

Microsporophylls andmegasporophylls

represent

the

gametophyte.

Flower

bear

antheridium

an

gynoecium.

Male

reproductive

part

Antheridia

produce the malegamete.

The male cone is highlyreduced in size.

Antheridia

are

composed of an anther

and a slender stalk.

Anther produces the

pollen grains, i.e. male

gametes.

Female

reproductive

part

Archegonia

produce

the

female gamete.

The megasporophyll is

large in size and is

easily apparent as the

female cone.

The gynoecium contains

the ovary, style and

stigma. Fertilised egg

develops inside the

ovary and eventually

seeds are produced.