Here is list of sixteen gymnospems:- 1. Cycas 2. Ginkgo 3. Pinus 4. Cupressus 5. Thuja 6. Juniperus 7. Cryptomeria 8. Podocarpus 9. Taxus 10. Cephalotaxus 11. Picea 12. Araucaria 13. Cedrus 14. Abies 15. Ephedra 16. Gnetum. 1. Cycas: Vegetative Structure: The plant is arboreal, un-branched palm tree like. The stem is columnar and also covered by an armour [...]
The upcoming discussion will update you about the difference between gymnosperms and angiosperms. Difference # Gymnosperms: 1. In gymnosperms, vessels are absent (except Gnetales) in the xylem. 2. In gymnosperms, phloem lacks companion cells. 3. The so-called flowers of most of the gymnosperms are simple and unisexual in gymnosperms 4. In gymnosperms, ovules are naked i.e. not enclosed in carpel. [...]
In this article we will discuss about the resemblances of gymnosperms with pteridophytes and angiosperms. Resemblances of Gymnosperms with Pteridophytes: 1. Plant body is sporophytic, and the sporophyte is differentiated into roots, stem and leaves in both gymnosperms and pteridophytes. 2. Members of both the groups show a regular alternation of sporophytic and gametophytic generations. 3. Cercinate vernation of the [...]