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CHAPTER 29 PLANT DIVERSITY I: HOW PLANTS COLONIZED LAND Ferns in a Tasmanian Forest

CHAPTER 29 PLANT DIVERSITY I: HOW PLANTS COLONIZED LAND Ferns in a Tasmanian Forest. Highlights of Plant Evolution. Charophyceans-green algae most closely related to land plants. Charophyceans-green algae most closely related to land plants. Charophyceans homologies with land plants:

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CHAPTER 29 PLANT DIVERSITY I: HOW PLANTS COLONIZED LAND Ferns in a Tasmanian Forest

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  1. CHAPTER 29 PLANT DIVERSITY I: HOW PLANTS COLONIZED LANDFerns in a Tasmanian Forest

  2. Highlights of Plant Evolution

  3. Charophyceans-green algae most closely related to land plants

  4. Charophyceans-green algae most closely related to land plants

  5. Charophyceans homologies with land plants: Chloroplasts Rosette cellulose-synthesizing complexes Almost identical enzymes in their perioxisomes Formation of a phragmoplast during cytokinesis and cell plate formation Sperm rRNA and cytoskeletal proteins

  6. Apical meristems of plants shoots and roots Apical meristem

  7. Embryo of a Liverwort Maternal tissue of the archegonium Embryo

  8. Embryo of an Angiosperm Endosperm Maternal tissue of the archegonium Embryo Integuments

  9. Alternation of generations a generalized scheme

  10. Division Pterophyta - a fern spore

  11. Sporangium of a Hornwort Spores Sporangium tissue

  12. Archegonium of a liverwort egg

  13. Antheridium of a Liverwort Sperm

  14. Pterophyta stem Waxey cuticle

  15. Pterophyta Stem Phloem Xylem

  16. Phloem Xylem

  17. Fossilized tissue of a sporophyte and spores

  18. Hypothetical mechanism for the origin of alternation of generations in the ancestor of plants

  19. Liverworts

  20. Liverworts

  21. Hornworts

  22. Phylum Bryophyta Multicellular with specialized cells and tissues but they do not contain any vascular tissue which restricts their size. Sporophytes Gametophytes

  23. Bryophytes Mosses--Sporophyte

  24. Bryophytes Mosses—Gametophyte Archegonia and antheridia grow on separate stalks of the same gametophyte so splashing water is required to transfer the sperm to the egg

  25. Bryophytes Mosses

  26. Bryophytes Mosses Gametophytes

  27. Quillwort

  28. Life Cycle of a Moss Bryophyte

  29. Life Cycle of a Moss Bryophyte

  30. Life Cycle of a MossBryophyte

  31. Bryophytes Mosses--Gametophyte

  32. Bryophytes Mosses—GametophyteSpermEggArchegonium

  33. Bryophytes Mosses--Sporophyte

  34. Sporangium

  35. Bryophytes Mosses--Spores

  36. Bryophytes Mosses--Protonema

  37. Small Sporophyte of a liverwort

  38. Bryophytes Moss--Sporangium

  39. Sphagnum Moss

  40. Sphagnum MossGametophyte Sporophyte

  41. Sphagnum leaf

  42. Peat Bog

  43. protracheophyte & polysporangiophytes Fossil of an early plant with vascular tissue

  44. SporophyllsLycophyta-Club Moss

  45. SporophyllsLycophyta-Club Moss

  46. Whisk Fern

  47. Division Sphenophyta-Horsetails Silica in cell walls makes them abrasive. Sporophyte is predominant generation; homosporus;

  48. Division Sphenophyta-Horsetails

  49. Pterophyta-Ferns

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