All other plants developed seeds for reproduction. The gymnosperms include conifers and cycads. Gymnosperms have vascular tissue and reproduce with seeds. Angio means container in Greek, and the angiosperms have developed flowers around the protective chamber called the ovary which, when the egg is fertilised, produces the seed. Seeds are composed of an embryo together with a food supply for its early development, inside a protective seed coat.
Angiosperms also have vascular tissue.