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Introduction to general Botany # (Study of plants around.), Vascular…

- - - - Gametophyte: begins with spores that germinate into prothalli and ends with the fertilization of female gametes by male sperm.
      - Sporophyte: starts with the fertilized eggs that develop into spore producing plant
  - - - 1.Spores bearing
      - Grassy, spikelike leaves and mostly found in swampy, cooler parts of North America and Eurasia.
      - Sporangium present in the inner leaf surface
      - Occurance of ligule
  - - - 1.Falls under genus selaginella
      - Widly distributed all over world mostly in tropic area
      - Most are forest plants while some grow on trees and some in dry areas.
      - 4.Leaves are clustered in spikes or strobili.
- - - - Large, showy, pink or lavender flowers like sunflowers.
    - - Distribute pollen to water surface example Vallisneria's male flower.
      - Distribute pollens beneath the surface example seagrass
    - - Pollination by wind give rise to long stamens and pistils, dull colored, unscented, small or no petals.
    - - Showy, open , bowl shaped flowers like wild roses, sunflowers
      - showy, complicated, non radially symmetrical flowers like peas, foxgloves
    - - Usually large, greenish or off white in color and heavily scented like Magnolias.
- - - - Have dominant diploid sporophyte phase.
      - Have pollen grain as small, multicellular, male haploid gametophyte phase of life cycle.
  - - - They are monoecious plants with male and femlae sporophylls on same mature sporophyte.