Gymnosperms are non-flowering plants and are in phylum Coniferophyta (also known as Pinophyta). Instead of flowers, they have cones which evolved from reproductive structures called scales. Angiosperms are flowering plants and are in phylum Anthophyta (also known as Magnoliophyta). They are divided into two major groups, monocots and dicots. The reproductive structures are found in the flower parts.