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-Vascular (no true
xylem or phloem) 1. Characteristics a. short
(no vascular tissues)
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III. Plant Diversity A. Non-Vascular (no true
xylem or phloem) 1. Characteristics a. short
(no vascular tissues) b. limited to moist
habitats (swimming sperm)
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III. Plant Diversity A. Non-Vascular (no true
xylem or phloem) 2. Example Mosses
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(No Transcript)
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III. Plant Diversity A. Non-Vascular (no true
xylem or phloem) 2. Mosses - have stomata
regulate water loss - reproductive
structures at stalk tips
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Archegonium
Antheridium
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III. Plant Diversity A. Non-Vascular (no true
xylem or phloem) 2. Mosses - have stomata
regulate water loss - reproductive
structures at stalk tips - swimming sperm
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III. Plant Diversity B. Tracheophyte
Origins 4. Life History simple (primitive) -
Homospory
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III. Plant Diversity C. Non-seed
Tracheophytes 1. Lycophytes (Club Mosses)
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III. Plant Diversity C. Non-seed
Tracheophytes 1. Lycophytes - (Club Mosses) -
ancient dominated first forests 300-350
mya
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III. Plant Diversity C. Non-seed
Tracheophytes 1. Lycophytes - (Club Mosses) -
ancient dominated first forests 300-350 mya
- simple leaves - Dominant Diploid (with
stobili)