3 NON–SEED VASCULAR PLANTS

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Presentation transcript:

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 Ex: Lycopodium = resembles miniature pine tree

CLUB & SPIKE MOSS

CLUB & SPIKE MOSS

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)

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

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

FERNS

FERNS

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

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

HORSETAILS

HORSETAILS

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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