Chapter 29 Plant Diversity I: The Colonization of Land

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Chapter 29Plant Diversity IThe Colonization
of Land
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Question ?

• What are the characteristics of Plants?

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Kingdom Plantae
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Additional Characteristics
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Cuticle
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Problem
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Solution - Stomata
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Secondary Products
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Plant Life Cycle
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Spores
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Gametophyte
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Antheridia
Sterile cells
Sperm
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Archegonia
Sterile Cells
Egg
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Plant Taxonomy
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Plants Evolutionary Trends
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Evolution of Plants
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Evolutionary Advancement in Plants
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Movement from water to land
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Nonvascular Land Plants
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Divisions or Phyla
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Characteristics
Moss Leaf
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Bryophytes
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Bryophytes
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Life History
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Gametophyte
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Gametophyte

• Antheridia

• Archegonia

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Sporophyte
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Sporophyte

• Sporangium

• Spores

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Bryophytes -Importances

• Peat Moss (many uses).
• Soil Formation.

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Seedless Vascular Plants
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Divisions or Phyla
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Characteristics
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Characteristics
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Life History
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Life Cycle
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Spore Types
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Psilotum a Wiskfern
Sporangia
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Lycopodium - a Club Moss
Strobilus
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Equisetum - Horsetails
Strobilus
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True Ferns
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Ferns
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Fern Life cycle

• Sporophpyte

• Sori on fronds

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Young Sporophytes
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Chapter 30

• Plant Diversity IIThe Evolution of Seed Plants

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Seed Plants
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Adaptations Seed Plants
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Life Cycle switch
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Gymnosperms Divisions or Phyla
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Characteristics
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Life Cycle
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Conifers
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Pollen Cone

• Male Cones

• Sporangia

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Pollination
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Ovulate Cone

• At time of Pollination

• Ovulate Cone

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Ovulate Cone

• Megaspore

• Mature Cones

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Fertilization
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Conifer Seeds

• Embryo

• Mature Seed

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Other Examples

• Cypress

• Pacific Yew

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Importances

• Cycadophyta
• Landscaping
• Food

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Ginkgo

• Tree

• Fall Color

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Ginkgo - Male

• Male cones

• Sperm

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Ginkgo - Female

• Female cones

• Mature cones

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Angiosperms
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Characteristics
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Characteristics
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Life History
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