DENDROLOGY

Detailed explanation-1: -Conifers –found in different world areas and are cone-bearing trees and shrubs such as pines, redwoods, firs, cedars, and spruces. Cycads –can survive in dry environments, possess wood trunks, and these leaves grow directly from the stem. More items •17-Jun-2022

Detailed explanation-2: -The seed plants are often divided arbitrarily into two groups: the gymnosperms and the angiosperms. The basis for this distinction is that angiosperms produce flowers, while the gymnosperms do not.

Detailed explanation-3: -Gymnosperms are vascular plants. They possess tracheids instead of xylem vessels. They have albuminous cells instead of companion cells and sieve cells in the phloem.