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The World of Plant Classification

The World of Plant Classification. An Unusual Angiosperm. Table 29.1 Ten Phyla of Extant Plants. Figure 29.1 Some highlights of plant evolution. Figure 29.6 Alternation of generations: a generalized scheme. Figure 30.1 Three variations on gametophyte/sporophyte relationships.

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The World of Plant Classification

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  1. The World of Plant Classification An Unusual Angiosperm

  2. Table 29.1 Ten Phyla of Extant Plants

  3. Figure 29.1 Some highlights of plant evolution

  4. Figure 29.6 Alternation of generations: a generalized scheme

  5. Figure 30.1 Three variations on gametophyte/sporophyte relationships

  6. Figure 29.15 Bryophytes

  7. Figure 29.15x1 Hornwort

  8. Figure 29.15x2 Quillwort

  9. Figure 29.9 Gametangia: Archegonium of Marchantia (left), Anteridium of a hornwort (right)

  10. Figure 29.16 The life cycle of Polytrichum, a moss (Layer 1)

  11. Figure 29.16 The life cycle of Polytrichum, a moss (Layer 2)

  12. Figure 29.16 The life cycle of Polytrichum, a moss (Layer 3)

  13. Figure 29.16x Moss life cycle

  14. Figure 29.x1 Polytrichum moss leaf section

  15. Figure 29.18 A moss sporangium with a “spore-shaker” tip

  16. Figure 29.19 Sphagnum, or peat moss: Peat bog in Oneida County, Wisconsin (top), closeup of Sphagnum (bottom left), Sphagnum "leaf" (bottom right)

  17. Figure 29.19x A peat moss bog in Norway

  18. Figure 29.0 Ferns

  19. Figure 29.11 Xylem and phloem in the stem of Polypodium, a fern (a pteridophyte)

  20. Figure 29.21 Pteridophytes: club "moss" (top left), whisk fern (top right), horsetail (bottom left), fern (bottom right)

  21. Figure 29.21x1 Lycophyte

  22. Figure 29.21x2 Horsetail

  23. Figure 29.23 The life cycle of a fern

  24. Figure 29.23x1 Life cycle of a fern: mature fern

  25. Figure 29.23x2 Life cycle of a fern: sorus

  26. Figure 29.23x3 Life cycle of a fern: sporangium

  27. Figure 29.23x4 Life cycle of a fern: mature sporangium

  28. Figure 29.23x5 Life cycle of a fern: germinating

  29. Figure 29.23x6 Life cycle of a fern: gametophyte

  30. Figure 29.23x7 Life cycle of a fern: archegonia

  31. Figure 29.23x8 Life cycle of a fern: sporophytes

  32. Figure 29.24a Fern sporophyll, a leaf specialized for spore production

  33. Figure 29.24b Fern sporophyll, a leaf specialized for spore production

  34. Figure 29.24c Fern sporophyll, a leaf specialized for spore production

  35. Figure 29.25 Artist’s conception of a Carboniferous forest based on fossil evidence

  36. Figure 30.4 Hypothetical phylogeny of the seed plants

  37. Figure 30.0 Seed fossil

  38. Figure 30.3 Winged seed of a White Pine (Pinus strobus)

  39. Figure 30.5a Phylum Ginkgophyta: Ginkgo biloba

  40. Figure 30.5c Phylum Ginkgophyta: Ginkgo biloba

  41. Figure 30.5x1 Ginkgo: Male (left), female (right)

  42. Figure 30.5x2 Ginkgo sperm

  43. Figure 30.6 Phylum Cycadophyta: cycads

  44. Figure 30.7a Phylum Gnetophyta: Welwitschia

  45. Figure 30.7b Phylum Gnetophyta: Gnetum

  46. Figure 30.7c Phylum Gnetophyta: Ephedra

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