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tracheid
tracheid A type of cell occurring within the xylem of conifers, ferns, and related plants. Tracheids are elongated and their walls are usually extensively thickened by deposits of lignin. Water flows from one tracheid to another through unthickened regions (pits) in the cell walls. Compare vessel element.
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"tracheid." A Dictionary of Biology. 2004. Encyclopedia.com. 29 May. 2012 <http://www.encyclopedia.com>. "tracheid." A Dictionary of Biology. 2004. Encyclopedia.com. (May 29, 2012). http://www.encyclopedia.com/doc/1O6-tracheid.html "tracheid." A Dictionary of Biology. 2004. Retrieved May 29, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-tracheid.html |
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tracheid
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MICHAEL ALLABY. "tracheid." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 29 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "tracheid." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 29, 2012). http://www.encyclopedia.com/doc/1O7-tracheid.html MICHAEL ALLABY. "tracheid." A Dictionary of Plant Sciences. 1998. Retrieved May 29, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-tracheid.html |
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