The Life Cycle of Bryophytes - PowerPoint PPT Presentation

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The Life Cycle of Bryophytes

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  1. The Life Cycle of Bryophytes • bryophytes are diplohaplontic plants with a heteromorphic alternation of generations • within the sporangiumspores are formed by meiosis • protonema and gametophores develop after germination • antheridia and archegonia produce sperm and eggs • after fertilization a new, attached sporophyte is formed

  2. Hooker and Taylor, Muscologia Britannica, 1818

  3. Anthocerotopsida spor gam

  4. Bryopsida spor spor gam gam

  5. Sphagnopsida spor gam

  6. spor gam Jungermanniopsida

  7. Marchantiopsida spor gam

  8. spores

  9. germinating spore

  10. chloronema

  11. caulonema

  12. thalloid flap

  13. protonema and sporeling

  14. antheridia

  15. antheridium

  16. archegonia

  17. young sporophyte

  18. sporophytes

  19. capsule and peristome

  20. asexual reproduction

  21. gemmae