Chapter 29 Plant Diversity I: The Colonization of Land
Question ? u What are the characteristics of Plants?
Kingdom Plantae
Additional Characteristics
Cuticle
Problem
Solution - Stomata
Secondary Products
Plant Life Cycle
Spores
Gametophyte
Antheridia Sterile cells Sperm
Archegonia Sterile Cells Egg
Plant Taxonomy
Plants: Evolutionary Trends
Evolution of Plants
Evolutionary Advancement in Plants
Movement from water to land
Nonvascular Land Plants
Divisions or Phyla:
Characteristics Moss Leaf
Bryophytes
Life History
Gametophyte
u Antheridia u Archegonia
Sporophyte
u Sporangium u Spores
Bryophytes - Importances u Peat Moss (many uses). u Soil Formation.
Seedless Vascular Plants
Divisions or Phyla:
Characteristics
Life History
Life Cycle
Spore Types
Psilotum – a Wiskfern Sporangia
Lycopodium - a Club Moss Strobilus
Equisetum - Horsetails Strobilus
True Ferns
Ferns
Fern – Life cycle u Sporophpyte u Sori on fronds
Young Sporophytes
Plant Diversity II: The Evolution of Seed Plants
Seed Plants
Adaptations: Seed Plants
Life Cycle switch
Gymnosperms – Divisions or Phyla
Characteristics
Life Cycle
Conifers
Pollen Cone u Male Cones u Sporangia
Pollination
Ovulate Cone u At time of Pollination u Ovulate Cone
Ovulate Cone u Megaspore u Mature Cones
Fertilization
Conifer Seeds u Embryo u Mature Seed
Other Examples u Cypress u Pacific Yew
Importances u Cycadophyta: u Landscaping u Food
Ginkgo u Tree u Fall Color
Ginkgo - Male u Male cones u Sperm
Ginkgo - Female u Female cones u Mature cones
Angiosperms
Characteristics
Life History