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)