• Dr. Peat's Home Page
  • BIOLOGY 11
  • Organismal Diversity Images
    • Prokaryotes
    • Kingdom Protista - Protists>
      • Alveolata
      • Stramenopila (protists with fine hairs)
      • Foraminiferans
      • Rhodophyta
      • Euglenozoa
      • Amoebas
    • Kingdom Animalia - Animal Diversity>
      • Porifera
      • Cnidaria>
        • Hydrozoa (The hydroids)
        • Anthozoa (Sea Anemones and Corals)
        • Scyphozoa (The Jellyfish)
      • Ctenophora
      • Platyhelminthes
      • Nematoda
      • Tardigrada
      • Annelida
      • Rotifera
      • Mollusca
      • Arthropoda
      • Echinodermata
      • Chordata
    • Fungi>
      • Basidiomycota
      • Ascomycota
      • Zygomycota
    • Viridiplantae>
      • Bryophyta
      • Pterophyta
      • Gymnosperms
      • Angiosperms
  • Current Research

Kingdom Viridiplantae
   Gymnosperms
        Coniferophyta (Conifers)

  • Heterosporous seed plants
  • Sperm not motile; conducted to egg by a pollen tube
  • Leaves mostly needle-like or scale-like
  • Trees, shrubs
  • About 50 genera
  • Many produce seeds in cones

Pine Pollinate (Staminate) Cone

Picture
Pollen sac
Pollen


Pine Leaf - 100X (Needle)

Picture
Resin Canals
Epidermis
Stomata
Mesophyll
Xylem
Phloem


Pine Pollen Grain - 1000X

Picture
Pollen Grain
Air bladder


Pine Pollen Tube

Picture
Sperm


Pine Ovulate Cone

Picture
Archegonia
Egg
Female gametophyte

Pine Seed

Picture
Embryo
Gametophyte
Seed Coat

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