Transcript Four Types of Plants

Four Types of Plants
• Non-vascular
• Vascular
• Gynosperms
• Angiosperms
Nonvascular plants: Mosses
• Characteristics
• no water transport system
• rhizoids used to anchor
• spores for reproduction
• no seeds
Where must
mosses live?
“Peat Moss”
Peat Bog
Primitive Vascular Plants: Ferns
• Characteristics
• internal transport system
• xylem/phloem & roots
• swimming sperm
• need water to reproduce
• spores for reproduction
• no seeds
• First true roots, stems, leaves
spores
Where must
ferns live?
Ancient Tree Ferns
Fossil fuels…
I get it!
Carboniferous forest – 290-350 mya
Forests of ferns & mosses decayed into deposits of coal & oil
Ferns - adaptations
• See the first true
• Roots
• Stems
• Leaves
• Still considered primitive because ferns are still dependent on water
for reproduction
Gymnosperms (conifers)
• Characteristics
• internal transport
• xylem/phloem, roots
• seeds
• “naked” seeds in cone (no fruit)
• pollen
• sperm that doesn’t have to swim
Diversity in conifers
Cones & “naked” seeds
sporangium & pollen
male
male (pollen) cones
female
female cones
pine embryo
Flowering plants
• Characteristics
• internal transport system
• xylem/phloem, roots
• flower
• specialized structure for sexual reproduction
• pollen
• sperm that doesn’t have to swim
• seeds within fruit
FLOWER: specialized structure found
in angiosperms
Flower
• 4 rings of flower parts
• sepals
• petals
• stamens
Stigma
Style
Ovary
Anther
Stamen
Filament
• male
• carpel
• female
Petal
Ovule
Sepal
Carpel
Identify the flower structures…
Flower variations