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References: (images/text referenced as numbered)1. Raven, Peter H. and George B. Johnson. Biology 6e. Boston: McGraw Hill, 2002. 2. Knee, Michael. Seedless Vascular Plants. 20 October 2003 <http://www.hcs.ohio-state.edu/hcs300/svp1.htm> 3. Kenrick, P.. "The relationships of vascular plants.." Philosophical Transactions of the Royal Society of London B Biological Sciences. 355 (2000): 847-855. 4. Muller, Mike. Plant Phylogeny: Adaptation to Terrestrial Living. University of Illinois, Chicago. 21 Oct. 2003 <http://www.uic.edu/classes/bios/bios100/labs/plantdiversity.htm>. 5. Online Image Database. Milwaukee, Wisconsin. Milwaukee Public Library. 21 Oct. 2003 <www.mpm.edu/collect/fern-9.gif>. 6. Vasudeva, S. M. "Economic Importance of Pteridophytes.." Indian Fern Journal 16 (1999): 130-152. 7. "Fern," Microsoft® Encarta®
Online Encyclopedia 2003 8. Climate Zones. Blue Planet Biomes. 29 May 2003 <http://www.blueplanetbiomes.org/index.htm> 21 October 2003. 9. Guiry, Micheal D. Plant evolution, growth, anatomy and reproduction. 2003. The National Institution of Ireland. 22 Oct. 2003 <http://seaweed.ucg.ie/firstyears/Guide.html>. |
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