Major characteristics of Pteridophytes

• Pteron; Gk: feather (feather like leaves)
• Seedless vascular plants-vascular cryptogams
• First land plants
• About 10,00 species
• Botanical amphibians: bryophytes
• Botanical snakes: pteridophytes
• Dominant plants during carboniferous period
Plant body:
• Plant body is sporophytic
• Differentiated into true roots, stem and leaves
• Stem aerial or rhizomatous
• Vascular system: Xylem lacks vessels
• Companion cells and sieve tubes are absent sieve cells are present
• Secondary growth is absent except Isoetes
• Requires water for fertilization as male gametes are motile
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