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Tracheophyta
- Vascular plants
- posses vascular tissue and grow to be large
- posses vascular tissue and grow to be large
- Pteridophyta
- FERNS
- FERNS
- Structure of a fern
- Dominent phase: sporophyte
- Diploid plant
- developed from a zygote
- mature plant has true roots, a stem and leaves
- underground stem - rhizome
- leaflets - pinnae
- leaves covered by cuticle and possesses stomata
- sporangia develop on the underside of leaves
- each cluster - sorus
- protected by umbrella shaped cover - indusium
- protected by umbrella shaped cover - indusium
- each cluster - sorus
- sporangia develop on the underside of leaves
- underground stem - rhizome
- mature plant has true roots, a stem and leaves
- Diploid plant
- Dominent phase: sporophyte
- gametophyte develops from a spore
- separate plant called a protallus
- heart shaped structure
- bears the gametangia
- antheridium and the archegonium
- anchored by rhizoids
- antheridium and the archegonium
- bears the gametangia
- heart shaped structure
- separate plant called a protallus
- production of gametes and fertilization
- archegonia and antheridia produce eggs and sperm by mitosis
- sperm released and swim in water into
archegonia where fertilization of egg takes place
- sperm released and swim in water into
archegonia where fertilization of egg takes place
- archegonia and antheridia produce eggs and sperm by mitosis
- life cycle of a fern
- meiosis and production of spores
- spores are produced in sporangia by meoisis
- spores released when annulus layer dries out and breaks open
- dispersed by the wind
- spore producing capacity enormous
- spore producing capacity enormous
- dispersed by the wind
- spores released when annulus layer dries out and breaks open
- spores are produced in sporangia by meoisis
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