Here are some examples of gymnosperms:

* Conifers: These are the most familiar group of gymnosperms, including pines, firs, spruces, cedars, and redwoods. They have cones that hold their seeds.

* Cycads: These are ancient plants with a palm-like appearance.

* Ginkgoes: This is a single species of tree that is considered a living fossil.

* Gnetales: This is a small group of plants that includes the Welwitschia, a desert plant with two giant leaves.

Why are they called "naked seeds"?

Unlike angiosperms (flowering plants), gymnosperms don't enclose their seeds within a fruit. Instead, the seeds are exposed on the surface of scales or leaves, often within cones.