DENDROLOGY

Detailed explanation-1: -Angiosperms are plants that produce flowers and bear their seeds in fruits. They are the largest and most diverse group within the kingdom Plantae, with about 300, 000 species. Angiosperms represent approximately 80 percent of all known living green plants.

Detailed explanation-2: -Angiosperms are distinguished from the other seed-producing plants, the gymnosperms, by having flowers, endosperm within their seeds, and producing fruits that completely envelop the seeds.

Detailed explanation-3: -Gymnosperms are non-flowering plants and instead reproduce through two different unisexual structures called cones. They produce pollen grains in male cones which make their way to female cones, usually by the wind.