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3 NON–SEED VASCULAR PLANTS

3 NON–SEED VASCULAR PLANTS. LYCOPHYTA. “Club mosses” or “spike mosses” Ancient species = tree sized Leafy stems resemble moss gametophyte Sporophyte generation = dominant Has roots, stems, leaf-like structures Has single vein running through leaf-like structure

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3 NON–SEED VASCULAR PLANTS

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  1. 3 NON–SEED VASCULAR PLANTS

  2. LYCOPHYTA • “Club mosses” or “spike mosses” • Ancient species = tree sized • Leafy stems resemble moss gametophyte • Sporophyte generation = dominant • Has roots, stems, leaf-like structures • Has single vein running through leaf-like structure • Ex: Lycopodium = resembles miniature pine tree

  3. CLUB & SPIKE MOSS

  4. CLUB & SPIKE MOSS

  5. CLUB & SPIKE MOSS • http://www.youtube.com/watch?v=LZqxHXvzcdg • Lycopodium spores (.26) • http://www.youtube.com/watch?v=TAdElO1FCSM&feature=related • Fine Dust Explosion - Lycopodium Powder (2.26)

  6. PTEROPHYTA • “Ferns” • 1st appeared 375mya • Tree-like • Live on damp forest floors & dry areas • Become dormant when moisture = scarce • Sporophyte generation has roots, stems, leaves

  7. PTEROPHYTA • Thick main stem underground = “rhizome” • Leaves = “fronds” • Leaflets = “pinnae” • First plant to evolved leaves with branched veins • Sporangia produce spores • Sorus or sori = clusters of sporangia

  8. FERNS

  9. FERNS

  10. PTEROPHYTA • http://www.youtube.com/watch?v=QrQ9AZAFzug • Giant Fern Recovery Plan (1.09) • http://www.youtube.com/watch?v=dDVvOE2Bky4

  11. ARTHROPHYTA • “Horsetails” • Ancient vascular plant • 15 species • Genus Equisetum • Bush appearance • “scouring rushes”  have silica • Stem = ribbed & hollow, appears jointed • Spores = produced in strobili

  12. HORSETAILS

  13. HORSETAILS

  14. HORSETAILS • http://www.youtube.com/watch?v=xP3WX3zBr24 • Equisetum arvense (.23) • http://www.youtube.com/watch?v=os5YdYrNVLs • Moar Roar (.31)

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