HORTICULTURE

Detailed explanation-1: -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 .

Detailed explanation-2: -As vascular plants, gymnosperms contain two conducting tissues, the xylem and phloem.

Detailed explanation-3: -Gymnosperms. Gymnosperms and seed-producing vascular plants do not enclose the seeds in fruit or a flower; rather, its seeds remain opened in the air. Several examples of gymnosperms are; Conifers –found in different world areas and are cone-bearing trees and shrubs such as pines, redwoods, firs, cedars, and spruces.

Detailed explanation-4: -Gymnosperms are seed-bearing vascular plants, such as cycads, ginkgo, yews and conifers, in which the ovules or seeds are not enclosed in an ovary. The word “gymnosperm” comes from the Greek word gymnospermos, meaning “naked seeds".

Detailed explanation-5: -The xylem of gymnosperms lacks vessels whereas vessels are present in xylem of angiosperms. The phloem of gymnosperms lacks companion cells whereas companion cells are present in angiosperms.