Post on 15-Jan-2016
description
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)