26.2: Gymnosperms Last updated Save as PDF Page ID 13675 Boundless Boundless 26.2A: Characteristics of Gymnosperms Gymnosperms are seed plants that have evolved cones to carry their reproductive structures. 26.2B: Life Cycle of a Conifer Conifers are monoecious plants that produce both male and female cones, each making the necessary gametes used for fertilization. 26.2C: Diversity of Gymnosperms Gymnosperms are a diverse group of plants the protect their seeds with cones and do not produce flowers or fruits.