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Flowering Plants

Flowering Plants

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Flowering Plants

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  1. Flowering Plants BIOL 1407

  2. Flowering Plants • Seed plants • Ovules are enclosed in an ovary • Ovary  fruit around seeds • Photo Credit: BIOL 1407 student, Austin Nature Center field trip, 2006

  3. Flowers • Reproductive Structures • Attract animal pollinators • Photo Credit: Pam Wolfe, Georgetown River Walk 2008

  4. Flowers • Female structures = megasporophylls • Male structures = microsporophylls • Photo Credit: Pam Wolfe, Zilker Botanical Gardens 2008

  5. Flowers • Reproductive structures surrounded by modified leaves • Photo Credit: Pam Wolfe, Zilker Botanical Gardens 2008

  6. Photo Credit: ACC Field Biology Student, 2005

  7. Photo Credit: Courtesy of Luc Viatour @ http://www.lucnix.be

  8. Photo Credit: ACC Field Biology Student, 2005

  9. Flower Pollination • Animal Pollinators • Insects • Bats • Birds • Other mammals (sugar gliders, mouse lemurs) • Wind Pollination • Water Pollination • Photo Credit: Courtesy of Luc Viatour @ http://www.lucnix.be

  10. Photo Credit: Butterfly – Courtesy of Luc Viatour @ http://www.lucnix.beStapelia – Courtesy of ChasMTx @ http://www.ubcbotanicalgarden.org/potd/2005/11/stapelia_gigantea.php

  11. Fruits • Mature ovary • Ovary forms wall around seeds • Photo Credit: Courtesy of Luc Viatour @ http://www.lucnix.be

  12. Photo Credit: Courtesy of Luc Viatour @ http://www.lucnix.be

  13. Photo Credit: Courtesy of Luc Viatour @ http://www.lucnix.be

  14. Seed Dispersal • Seed Dispersal • Animal dispersal • Wind dispersal • Water dispersal • Mechanical dispersal • Photo Credit: Mexican buckeye fruit, BIOL 1407 Student, Austin Nature Center field trip 2006

  15. Photo Credit: Courtesy of Luc Viatour @ http://www.lucnix.be

  16. Photo Credit: Blue Tit Photo – Courtesy of Luc Viatour @ http://www.lucnix.be

  17. Pollination • Pollen germination • Pollen tube growth • Double fertilization

  18. Angiosperm Seeds • Zygote  Embryo • Triploid cell  Endosperm (food supply) • Integuments  Seed coat

  19. Corn Seeds

  20. Bean Seeds Question: Where is the endosperm?

  21. Cotyledon stays within kernel  nutrients from endosperm to seedling

  22. Evolution

  23. Basal Angiosperms

  24. Monocots

  25. Magnoliids

  26. Eudicots Photo Credits: ACC Field Biology Student, 2005

  27. The End Unless otherwise specified, all images in this presentation came from: Campbell, et al. 2008. Biology, 8th ed. Pearson Benjamin Cummings.