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The Plants • Plants are photoautotroph's. That means they make their own food using the energy they get from the sun. They are multi-cellular eukaryotes. They have a natural history of about 450 million years and are divided into about 10 major groups. Plants are considered to be the first organisms to properly colonise the terrestrial environment.
Chara: A modern algae that resembles primitive plant ancestors.
Seedless non vascular plants • Seedless Non Vascular plant Characteristics: • No flowers, has separate archegonium (female) and antheridium (male) • Produce spores • Does not produce pollen, has flagellated sperm • Not associated with the insects • Gametophyte (dominant generation) and sporophyte generation independently living but sporophyte growing out of gametophyte. • No vascular system; nutrients moved through diffusion.
The Seedless Vascular Plants. • Seedless Vascular plant Characteristics: • No flowers, has separate archegonium (female) and antheridium (male) • Produce spores • Does not produce pollen, has flagellated sperm • Not associated with the insects. • Gametophyte and sporophyte (generally dominant) generation independently living though the sporophyte grows from the archegonium which is on the gametophyte. • Vascular system: Xylem: Tracheids and Phloem: sieve tube members
Pteridophyta: Salvinea: A noxious introduced aquatic fern from the new world.
Gymnosperms: The first seed plants. • Gymnosperm Characteristics: • No flowers • Produce seeds that are not contained within an ovary • Produce pollen • Not closely associated with the insects. • Dominant sporophyte generation • Vascular system: Xylem: Tracheidsand Phloem: sieve tube members
Cycadicae: Bowinea: The byfield fern, a rare native fern found in central Queensland.
Pinicae • Have no pictures of my own yet
Gneticae: • Have no pictures of my own yet
Angiosperms: The Modern Insect Symbionts. • Angiosperm Characteristics: • Produce flowers • Produce seeds that are contained within ovaries • Produce pollen • Close association with the insects • Dominant sporophyte generation • Vascular system:Xylem: vessel elementsand Phloem: sieve tube members
Dicotyledons: The flowering plants with two cotyledons. • Dicotyledon characteristics: • Two cotyledons • Leaves petolate • Netted venation • Flower parts in sets of 4 or 5. • Secondary growth • Tap roots
Angiosperm: Dicotyledon: Opointea: A Vibrant fast growing cactus species.
Monocotyledons: The Flowering Plants with one cotyledon. • Monocotyledon Characteristics: • Only one cotyledon • Leaves that are stem clasping • Parallel venation • Flower parts in sets of 3 • No secondary growth • No tap roots
Angiosperm: Monocotyledon: Bromeliad: A tree dwelling, sometimes carnivorous grass relative.
