Evolution of Seed Plants
The evolution of seeds allowed plants to reproduce independently of water; pollen allows them to disperse their gametes great distances.
Evolution of Gymnosperms
Seed ferns gave rise to the gymnosperms during the Devonian Period, allowing them to adapt to dry conditions.
Evolution of Angiosperms
Angiosperms, which evolved in the Cretaceous period, are a diverse group of plants which protect their seeds within an ovary called a fruit.