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Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative -Leaves, stems, roots -Reproductive - Female, male gametophytes - Embryo development Tissue types, arrangement? Life cycle? Synapomorphies?

Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

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Page 1: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

Ginkgoales-Vegetative

-Leaves, stems, roots-Reproductive

- Female, male gametophytes- Embryo development

Tissue types, arrangement?

Life cycle?

Synapomorphies?

Page 2: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

- Rosette growth habit- Secondary growth?- Girdling leaf traces- Coralloid roots- Eusteles!

Page 3: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

- Rosette growth habit- Secondary growth?- Girdling leaf traces- Coralloid roots- Eusteles!

Page 4: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

Page 5: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

Page 6: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative
Page 7: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

-Microsporophyll

- Eu- or Leptosporangia?

Page 8: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

-Salpinx?

-Megasporophyll

- How does the sperm get to the egg?

M

C

Page 9: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

- Female Gametophyte - Nucellus- Integument

- Endotesta- Scelerotesta- Sarcotesta

Page 10: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

M

C

Page 11: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoCycadales:-Vegetative

-Leaves, stems, roots-Reproductive

- Cones- Female, male gametophytes- Embryo development

Page 12: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoGinkgoales-Vegetative

-Leaves, stems, roots-Reproductive

- Female, male gametophytes- Embryo development

- Leaf Characters?- Short vs. Long shoots

Page 13: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoGinkgoales-Vegetative

-Leaves, stems, roots-Reproductive

- Female, male gametophytes- Embryo development Crystals!

^ Shoot Apical Meristem

Page 14: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoGinkgoales-Vegetative

-Leaves, stems, roots-Reproductive

- Female, male gametophytes- Embryo development

< Root cross section

Page 15: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoGinkgoales-Vegetative

-Leaves, stems, roots-Reproductive

- Female, male gametophytes- Embryo development

Page 16: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoGinkgoales-Vegetative

-Leaves, stems, roots-Reproductive

- Female, male gametophytes- Embryo development

Page 17: Cycadales and Ginkgo Cycadales: -Vegetative -Leaves, stems, roots -Reproductive - Cones - Female, male gametophytes - Embryo development Ginkgoales -Vegetative

Cycadales and GinkgoGinkgoales-Vegetative

-Leaves, stems, roots-Reproductive

- Female, male gametophytes- Embryo development

What happens to the cotyledons during germination?