CHAPTER 30 PLANT DIVERSITY II: THE EVOLUTION OF SEED PLANTS Seed - PowerPoint PPT Presentation

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CHAPTER 30 PLANT DIVERSITY II: THE EVOLUTION OF SEED PLANTS Seed
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CHAPTER 30 PLANT DIVERSITY II: THE EVOLUTION OF SEED PLANTS Seed

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  1. CHAPTER 30 PLANT DIVERSITY II: THE EVOLUTION OF SEED PLANTSSeed

  2. ----------------------- -------------------------- ------------------------------------

  3. Moss leaf cross section

  4. Change in Dominance of Generations

  5. Ovule to Seed

  6. Winged seed of a White Pine

  7. Division GinkgophytaGinkgo Treea “living fossil” only surviving species of a once large Division

  8. Division Ginkgophyta Ginkgo Tree

  9. Division GinkgophytaGinkgo Tree

  10. Division Ginkgophyta Ginkgo Tree Male

  11. Division Ginkgophyta Ginkgo Tree Female

  12. Division Ginkgophyta Ginkgo Tree Sperm

  13. Division Cycadophyta-Cycads

  14. Division Cycadophyta-Cycads Cone

  15. Welsitschia

  16. Gnetum

  17. Ephedra

  18. Division ConiferophytaDouglas Fir

  19. Division ConiferophytaSequoia

  20. Division ConiferophytaSequoia

  21. Division Coniferophyta Cypress

  22. Division Coniferophyta Pacific Yew

  23. Division Coniferophyta Juniper

  24. Division Coniferophyta Pine farm

  25. Division Coniferophyta Wollemia pine

  26. Division ConiferophytaBristle cone pine Oldest living organism

  27. Pollen Cones

  28. Pollen Cone

  29. Pollen grains

  30. Immature seed cones

  31. Seed Cones

  32. Seed cones

  33. Megasporangium

  34. Pollen sacs - Microsoprangium

  35. Pollen grain

  36. Life cycle of a pine tree

  37. Life cycle of a pine tree

  38. Pine seed and embryo

  39. Division Anthophyta angiosperms

  40. Division Anthophyta angiosperms-water lily

  41. Division Anthophyta angiosperms-Star anise

  42. Division Anthophyta angiosperms-Orchid

  43. Division Anthophyta angiosperms California Poppy

  44. Tracheids are more primitive than vessel elements; ferns only have tracheids; gymnosperms have both but angiosperms have the most vessel elements.

  45. Division Anthophyta Angiosperms