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Diversity of Plants

Introduction to Plants

Mosses

Ferns

Conifers

Flowering Plants

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Introduction to Plants

A. Origin of Plants

B. Characteristics

C. Classification

D. Ecological Role

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B. Characteristics

1. Eukaryotic

2. Multicellular

3.Autotrophic

4. Reproduce sexually and

asexuallya. alternation of generations

1) gametophyte (n)

2) sporophyte (2n)_

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C. Classification

1. Mosses (Bryophyte)

2. Ferns (Pteridophyte)

3. Conifers (Gymnosperms)

4. Flowering (Angiosperms)_

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Mosses and Other Bryophytes

A. Characteristics

B. Habitat

C. Examples

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A. Characteristics

1. Small and carpet-like

2. Protection for the developingembryo

a. antheridium- sperm

b.archegonium- egg

3. No vascular tissue rhizoidsare root-like structures

4. Reproduce by spores_

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B.Habitat

1. Live in moist shady areas

a. surface of logs, rocks, andsoil

b. stream banks

c.the spray of waterfalls_

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C. Examples

1. Mosses_

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2. Liverworts_

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3. Hornworts_

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Ferns and Other Pteridophytes

A. Characteristics

B. Habitat

C. Examples

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A. Characteristics

1. Fronds- leaf of fern growfrom underground stem(rhizome)

2. Protection for embryo

3. Have vascular tissue

a. true roots, stems, andleaves

b. strengthened by lignin

4. Reproduce by spores_

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B.Habitat

1. Live in moist shady areas

a. forest floor

b. moist cliff faces

2. Dominated the ancient Coal

Forests of the PaleozoicEra_

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C. Examples

1. Ferns_

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2. Horsetails_

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3. Club mosses_

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4.Whisk Ferns_

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Conifers & Other Gymnosperms

A. Characteristics

B. Habitat

C. Examples

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A. Characteristics

1. Bare needle-shape leaves andcones with pollen

2. Protection for embryo

3. Have vascular tissue

4. Reproduce by seeds producedin cones

a. small- male, microsporemakes pollen

b. large- female, megasporemakes ovule_

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B.Habitat

1. Live in colder dryer areas

a. northern forests

b. mountains

2. Dominate Canada, Alaska, andnorthern Europe_

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C. Examples

1. Conifers_

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2. Cycads_

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3. Gnetophytes_

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4. Ginkgos_

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Flowers & Other Angiosperms

A. Characteristics

B. Habitat

C. Examples

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A. Characteristics

1. Produce flowers with pollenand fruits (doublefertilization- embryo andendosperm)

2. Protection for embryo

3. Have vascular tissue4. Reproduce by seeds_

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5. Used to be classified into twogroups

a. monocots

b. dicots

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B.Habitat

1. Live in all areas

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C. Examples

1.Amborella2.Water lilies

3. Star Anise

4. Monocots

5. Dicots

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A. Characteristics

1. Small and carpet-like2. Protection for the developing

embryo

a. antheridium- sperm

b. archegonium- egg

3. No vascular tissue

4. Reproduce by spores_

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A. Characteristics

1. Small and carpet-like2. Protection for the developing

embryo

a. antheridium- sperm

b. archegonium- egg

3. No vascular tissue

4. Reproduce by spores_

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A. Characteristics

1. Small and carpet-like2. Protection for the developing

embryo

a. antheridium- sperm

b. archegonium- egg

3. No vascular tissue

4. Reproduce by spores_

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A. Characteristics

1. Small and carpet-like2. Protection for the developing

embryo

a. antheridium- sperm

b. archegonium- egg

3. No vascular tissue

4. Reproduce by spores_

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A. Characteristics

1. Small and carpet-like2. Protection for the developing

embryo

a. antheridium- sperm

b. archegonium- egg

3. No vascular tissue

4. Reproduce by spores_