Vascular Plants with Seeds

1. Vascular Plants with Seeds These plants do not require water for sexual reproduction. They reproduce by seeds rather than spores.  Seeds are multicellular and contain a young plant called an embryo.

2. Characteristics of Seed Plants • All seed plants have vascular tissue that transports water and nutrients throughout the plant. • They also have roots, stems, and leaves.

3. Vascular Plants with Seeds There are two groups of seed plants—cone-bearing gymnosperms and flowering angiosperms. Two main groups of seed plants: Gymnosperm Angiosperms

4. Gymnosperms • In gymnosperms, seeds are produced in a cone. • Different types of gymnosperms include conifers, cycads, ginkgoes, and gnetophytes. Siede Preis/Getty Images

5. gymnosperms • the seed plants that do not first produce a flower before the seed • means "naked seed" - produce seeds not covered by the walls of an ovary • do not form flowers or fruits • produce cones or cone-like structures

6. Gymnosperms - conifers

7. Gymnosperms - cycads

8. Gymnosperms - ginkgoes

9. Gymnosperms - gnetophytes

10. Angiosperms • There are more than 260,000 species of flowering plants, or angiosperms. • Almost all of the food eaten by humans comes from angiosperms or from animals that eat angiosperms.

11. angiosperms • The Flowering Plants – means “covered seed” • All have seed enclosed in a fruit • All have flowers (not all are colorful blossoms - corn tassels and catkins of oak trees)

12. Angiosperms • Angiosperms produce seeds that are part of a fruit. • Fruit grows from parts of a flower. • All angiosperms produce flowers. CORBIS

13. Angiosperms – sub divisions • Annuals • Biennials • Perennials

14. Angiosperms - Annuals Plants that grow, flower, and produce seeds in one growing season are called annuals.

15. Angiosperms - Biennials • Biennials complete their life cycles in two growing seasons. • During the first year, the plant grows roots, stems and leaves. • In the second growing season the plant produces new stems, leaves, flowers, and seeds.

16. Angiosperms - Perennials • Perennial plants, like trees and shrubs, can live for more than two growing seasons. • Flowering plants are organized into two groups—monocots and dicots. • These groups are based on the number of leaves in early development, or cotyledons, in a seed.

17. angiosperms

18. Angiosperms subcategories • Monocots • Dicots • Flowering plants are organized into two groups—monocots and dicots. • These groups are based on the number of leaves in early development, or cotyledons, in a seed.

20. Gymnosperms vs Angiosperms