The Embryophyta or Metaphyta, are the most familiar subkingdom of green plants that form vegetation on earth. The embryophytes include hornworts, liverworts, mosses, ferns and their allies, gymnosperms and flowering plants, but exclude the green algae. The Embryophyta are informally called land plants because they live primarily in terrestrial habitats, while the related green algae are primarily aquatic. All are complex multicellulareukaryotes with specialized reproductive organs. The name derives from their innovative characteristic of nurturing the young embryo sporophyte during the early stages of its multicellular development within the tissues of the parent gametophyte. With very few exceptions, embryophytes obtain their energy by photosynthesis, that is by using the energy of sunlight to synthesize their food from carbon dioxide and water.
The Magnoliaceae/mæɡˌnoʊliˈeɪsiː/, or Magnolia Family, is a flowering plant family in the orderMagnoliales. It consists of two subfamilies:
Unlike most angiosperms, whose flower parts are in rings, the Magnoliaceae have their stamens and pistils in spirals on a conical receptacle. This arrangement is found in some fossil plants and is believed to be a basal or early condition for angiosperms. The flowers also have parts not distinctly differentiated into sepals and petals, while angiosperms that evolved later tend to have distinctly differentiated sepals and petals. The poorly differentiated perianth parts that occupy both positions are known as tepals.