pollen, seeds, and plant reproduction 4.life cycle of selaginella 5.general features of plant...

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POLLEN, SEEDS, AND PLANT REPRODUCTION 4. Life cycle of Selaginella 5. General features of plant reproductive development and ecology 6. Life Cycle of the pines 7. Origin of the seed

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Page 1: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

POLLEN, SEEDS, AND PLANT REPRODUCTION

4. Life cycle of Selaginella5. General features of plant reproductive

development and ecology6. Life Cycle of the pines7. Origin of the seed

Page 2: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

Abies amabilis - Oregon Pinus edulis - New Mexico

Page 3: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

Pinus elliottii - Georgia coast Pinus ponderosa - Colorado mts.

Page 4: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

Pinus aristata - Colorado Sequoia sempervirens - Calif.

Page 5: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

POLLEN AND SEED CONES OF A PINE

Seed cones

pollen cones

Page 6: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

Pollen Cones on a pine tree

Page 7: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the
Page 8: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

Pine pollen in hand.

Page 9: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

dispersed pollen

Male gametophyte growing in nucellus

early pollen

Page 10: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the
Page 11: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

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

Page 12: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the
Page 13: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the
Page 14: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the
Page 15: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the
Page 16: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the
Page 17: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the
Page 18: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

POLLEN, SEEDS, AND PLANT REPRODUCTION

4. Life cycle of Selaginella5. General features of plant reproductive

development and ecology6. Life Cycle of the pines7. Origin of the seed

Page 19: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

COAL MEASURE SEQUENCE AT POINT ACONI,CAPE BRETON ISLAND.

COAL

SHALE (MUD STONE) with scattered leaf fossils

SHALE with rootbearing Fossils in place

Page 20: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

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

Page 21: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

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

Page 22: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

Reconstruction of the seed fern Medullosa.

Page 23: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

Reconstructions of seed fern seeds

Page 24: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

Origin of the Seed.

Page 25: POLLEN, SEEDS, AND PLANT REPRODUCTION 4.Life cycle of Selaginella 5.General features of plant reproductive development and ecology 6.Life Cycle of the

Origin of the Seed.