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Fig. 30-2

PLANT GROUP. Mosses and other nonvascular plants. Ferns and other seedless vascular plants. Seed plants (gymnosperms and angiosperms). Reduced, independent (photosynthetic and free-living). Reduced (usually microscopic), dependent on surrounding sporophyte tissue for nutrition. Gametophyte.

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Fig. 30-2

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  1. PLANT GROUP Mosses and othernonvascular plants Ferns and other seedlessvascular plants Seed plants (gymnosperms and angiosperms) Reduced, independent(photosynthetic andfree-living) Reduced (usually microscopic), dependent on surroundingsporophyte tissue for nutrition Gametophyte Dominant Reduced, dependent ongametophyte for nutrition Sporophyte Dominant Dominant Fig. 30-2 Gymnosperm Angiosperm Sporophyte(2n) Microscopic femalegametophytes (n) insideovulate cone Microscopic femalegametophytes (n) insidethese partsof flowers Sporophyte(2n) Gametophyte(n) Example Microscopic malegametophytes (n) insidethese partsof flowers Microscopic malegametophytes (n) inside pollencone Sporophyte (2n) Sporophyte (2n) Gametophyte(n)

  2. Seed plants (gymnosperms and angiosperms) Reduced (usually microscopic), dependent on surroundingsporophyte tissue for nutrition Gametophyte Dominant Sporophyte Gymnosperm Angiosperm Fig. 30-2c Microscopic femalegametophytes (n) inside ovulate cone Microscopic femalegametophytes (n) insidethese partsof flowers Microscopic malegametophytes (n) insidethese partsof flowers Example Microscopic malegametophytes (n) inside pollencone Sporophyte (2n) Sporophyte (2n)

  3. Key Haploid (n) Ovule Diploid (2n) Ovulatecone Megasporocyte (2n) Integument Pollencone Microsporocytes(2n) Megasporangium(2n) Maturesporophyte(2n) Fig. 30-6-4 Pollengrain Pollengrains (n) MEIOSIS MEIOSIS Microsporangia Microsporangium (2n) Survivingmegaspore (n) Seedling Archegonium Femalegametophyte Seeds Foodreserves(n) Spermnucleus (n) Seed coat(2n) Pollentube Embryo(2n) FERTILIZATION Egg nucleus (n)

  4. Fig. 30-5a Cycas revoluta

  5. Fig. 30-5b Ginkgo bilobapollen-producing tree

  6. Fig. 30-5c Ginkgo bilobaleaves and fleshy seeds

  7. Fig. 30-5d Gnetum

  8. Fig. 30-5e Ephedra

  9. Fig. 30-5f Welwitschia

  10. Ovulate cones Fig. 30-5g Welwitschia

  11. Fig. 30-5h Douglas fir

  12. Fig. 30-5i European larch

  13. Fig. 30-5j Bristlecone pine

  14. Fig. 30-5k Sequoia

  15. Fig. 30-5l Wollemi pine

  16. Fig. 30-5m Common juniper

  17. Tomato Ruby grapefruit Fig. 30-8 Nectarine Hazelnut Milkweed

  18. Wings Fig. 30-9 Seeds within berries Barbs

  19. MonocotCharacteristics EudicotCharacteristics Embryos One cotyledon Two cotyledons Leafvenation Veins usuallyparallel Veins usuallynetlike Fig. 30-13m Stems Vascular tissueusually arrangedin ring Vascular tissuescattered Roots Taproot (main root)usually present Root systemusually fibrous(no main root) Pollen Pollen grain withone opening Pollen grain withthree openings Flowers Floral organsusually inmultiples of three Floral organs usuallyin multiples of four or five

  20. Fig. 30-13e Orchid

  21. Fig. 30-13e1 Pygmy date palm (Phoenix roebelenii)

  22. Fig. 30-13f Lily

  23. Barley Fig. 30-13g Anther Stigma Ovary Filament

  24. Fig. 30-13h California poppy

  25. Fig. 30-13i Pyrenean oak

  26. Fig. 30-13j Dog rose

  27. Fig. 30-13k Snow pea

  28. Fig. 30-13l Zucchini flowers

  29. Fig. 30-13b Water lily

  30. Fig. 30-13c Star anise

  31. Fig. 30-13a Amborella trichopoda

  32. Stigma Carpel Stamen Anther Style Filament Ovary Fig. 30-7 Petal Sepal Ovule

  33. Table 30-1a

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