II. Introduction to Plants

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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce)
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce)
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce) 2. Colonization of Land Environmental
Diffs Aquatic Habitats Terrestrial Water
available Desiccating
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce) 2. Colonization of Land Environmental
Diffs Aquatic Habitats Terrestrial Water
available Desiccating Sunlight
absorbed Sunlight available
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce) 2. Colonization of Land Environmental
Diffs Aquatic Habitats Terrestrial Water
available Desiccating Sunlight
absorbed Sunlight available Nutrients at
Depth Nutrients available
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce) 2. Colonization of Land Environmental
Diffs Aquatic Habitats Terrestrial Water
available Desiccating Sunlight
absorbed Sunlight available Nutrients at
Depth Nutrients available Buoyant Less
Supportive
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce) 2. Colonization of Land Environmental
Diffs Aquatic Habitats Terrestrial Water
available Desiccating Sunlight
absorbed Sunlight available Nutrients at
Depth Nutrients available Buoyant Less
Supportive Low oxygen, higher CO2 reverse
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce) 2. Colonization of Land Environmental
Diffs B. Adaptations to Life on Land 1. Waxy
Cuticle (reduce water loss)
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce) 2. Colonization of Land Environmental
Diffs B. Adaptations to Life on Land 1. Waxy
Cuticle (reduce water loss) 2. Gametes protected
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce) 2. Colonization of Land Environmental
Diffs B. Adaptations to Life on Land 1. Waxy
Cuticle (reduce water loss) 2. Gametes
protected 3. Embryo protected
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II. Introduction to Plants A. Evolutionary
History 1. Green Algal roots Ulva (sea
lettuce) 2. Colonization of Land Environmental
Diffs B. Adaptations to Life on Land 1. Waxy
Cuticle (reduce water loss) 2. Gametes
protected 3. Embryo protected VULNERABLE 4.
Spore wall thick
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II. Introduction to Plants A. Evolutionary
History B. Adaptations to Life on Land C.
Plant Evolution Acquisition of Terrestriality
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III. Plant Diversity A. Non-tracheophytes (no
true vascular tissue) 1. Characteristics a.
short (no vascular tissues)
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III. Plant Diversity A. Non-tracheophytes (no
true vascular tissue) 1. Characteristics a.
short (no vascular tissues) b. limited to moist
habitats (swimming sperm)
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III. Plant Diversity A. Non-tracheophytes (no
true vascular tissue) 2. Diversity a.
Liverworts most primitive plants - lie
flat on ground - antheridia and archegonia
on surface
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III. Plant Diversity A. Non-tracheophytes (no
true vascular tissue) 2. Diversity a.
Liverworts most primitive plants b. Mosses
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III. Plant Diversity A. Non-tracheophytes (no
true vascular tissue) 2. Diversity a.
Liverworts most primitive plants b. Mosses
- have stomata regulate water loss
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Archegonium
Antheridium
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III. Plant Diversity A. Non-tracheophytes (no
true vascular tissue) 2. Diversity a.
Liverworts most primitive plants b. Mosses
- have stomata regulate water loss -
swimming sperm
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III. Plant Diversity A. Non-tracheophytes (no
true vascular tissue) 2. Diversity a.
Liverworts most primitive plants b. Mosses
- have stomata regulate water loss -
swimming sperm - cuticle waxy covering on
leaves