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POLLEN, SEEDS, AND PLANT REPRODUCTION

POLLEN, SEEDS, AND PLANT REPRODUCTION. Life cycle of Selaginella General features of plant reproductive development and ecology Life Cycle of the pines Origin of the seed. Abies amabilis - Oregon . Pinus edulis - New Mexico. Pinus elliottii - Georgia coast. Pinus ponderosa - Colorado mts.

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POLLEN, SEEDS, AND PLANT REPRODUCTION

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  1. POLLEN, SEEDS, AND PLANT REPRODUCTION Life cycle of Selaginella General features of plant reproductive development and ecology Life Cycle of the pines Origin of the seed

  2. Abies amabilis - Oregon Pinus edulis - New Mexico

  3. Pinus elliottii - Georgia coast Pinus ponderosa - Colorado mts.

  4. Pinus aristata - Colorado Sequoia sempervirens - Calif.

  5. pollen cones POLLEN AND SEED CONES OF A PINE Seed cones

  6. Pollen Cones on a pine tree

  7. Pine pollen in hand.

  8. Male gametophyte growing in nucellus early pollen dispersed pollen

  9. The target of the pollen is the ovule -- near the axis of the seed cone.

  10. POLLEN, SEEDS, AND PLANT REPRODUCTION Life cycle of Selaginella General features of plant reproductive development and ecology Life Cycle of the pines Origin of the seed

  11. COAL MEASURE SEQUENCE AT POINT ACONI, CAPE BRETON ISLAND. SHALE (MUD STONE) with scattered leaf fossils COAL SHALE with rootbearing Fossils in place

  12. Seed fern fossils provide cluews to the origin of the seed.

  13. Seed fern fossils provide cluews to the origin of the seed.

  14. Reconstruction of the seed fern Medullosa.

  15. Reconstructions of seed fern seeds

  16. Origin of the Seed.

  17. Origin of the Seed.

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