Final answer:
Plants that produce seeds within a cone are known as gymnosperms, which include species such as conifers, cycads, ginkgoes, and gnetophytes, and feature seeds on cone scales.
Step-by-step explanation:
Plants that produce seeds within a cone are called gymnosperms. Gymnosperms encompass various species including conifers, cycads, ginkgoes, and gnetophytes. These vascular plants have a distinct reproduction process where the male cones produce pollen, containing male gametes, and the female cones harbor eggs and allow seeds to develop. Unlike angiosperms, which form seeds inside an ovary and often produce fruit, gymnosperms have seeds that are not enclosed by fruit but are found on the scales of cones. A prime example of gymnosperms are coniferous trees like pines and firs, which display their seeds on cone scales.