Describe the important characteristics of gymnosperms.
The seed forming vascular plants which produce seeds but no fruits are called gymnosperms. General characters of gymnosperm are as follows: Fertilization does not require water. Leaves may be of two kinds: foliage leaves and scale leaves. The ovules are orthotropus. Most primitive seed-bearing plants. Mostly these plants are evergreen. Have no ovary wall, seeds are naked. Exhibit polyembryony. Sexual reproduction oogamous type. Large, tall and woody trees.