Bibliography

http://www.britannica.com/EBchecked/topic/250316/gymnospermhttp://www.hcs.ohio-state.edu/hcs300/svp2.htmhttp://www.facebook.com/l.php?u=http%3A%2F%2Fwww.bio.umass.edu%2Fbiology%2Fconn.river%2Fmosses.html&h=9906b5e863ab5ce0cf8bc2a900a2affchttp://www.cavehill.uwi.edu/FPAS/bcs/bl14apl/bryo1.htm
http://arnica.csustan.edu/Boty1050/Vascular/vascular_plants.htm
http://tolweb.org/angiosperms
http://mojavedesert.net/glossary/gymnosperm.html
http://bryophytes.plant.siu.edu/bryophytes.html
http://www.youtube.com/watch?v=35vPjdTNRU0