HORTICULTURE

Detailed explanation-1: -By far the largest group of living gymnosperms are the conifers (pines, cypresses, and relatives), followed by cycads, gnetophytes (Gnetum, Ephedra and Welwitschia), and Ginkgo biloba (a single living species). About 65% of gymnosperms are dioecious, but conifers are almost all monoecious.

Detailed explanation-2: -Taxonomists recognize four distinct divisions of extant (nonextinct) gymnospermous plants-Pinophyta, Cycadophyta, Ginkgophyta, and Gnetophyta-with 88 genera and more than 1, 000 species distributed throughout the world.

Detailed explanation-3: -Conifers like the spruce, cedar and pine tree are gymnosperms and have seeds on cones. Most coniferous trees are evergreen and are specially adapted to survive in areas with lots of snow. Many are cone-shaped to help snow slide off them so the branches won’t break.