In this article we will discuss about:- 1. Definition of Gymnosperms 2. External Features of Gymnosperms 3. Classification 4. Internal Structure 5. Reproduction 6. Affinities and Relationship 7. Evolutionary Significance. Definition of Gymnosperms: The term gymnosperms (gymnos = naked; sperma = seed) was introduced by Theophrastus in 300 BC to describe plants with unprotected seeds. […]