The male and female reproductive organs of several pteridophytes and gymnosperms are comparable to floral structures of angiosperms. Make an attempt to compare the various reproductive parts of pteridophytes and gymnosperms with reproductive structures of angiosperms. 

 
The structures are as given
 

Angiosperm

Pteridophyte

Gymnosperm

Reproductive Structure

 

 

Male Reproductive Organ