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What am I describing?

Posted by Phil Voice on November 25, 2009 at 7:36pm in Plants
A tube that exits through the cambium of some trees - It can remove pollution from the air. The London Plane is one particular tree that exhibits this particular feature - as it filters air from the city streets, its bark flakes from the trunk with the carbon and pollution trapped. Just for fun - what am I describing?
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  • Neil Petrie BSc Landscape Mgt November 25, 2009 at 8:07pm
    The actual tube removes pollution from the air? Hmmm? Within the cambium you have the xylem and phloem but don't know of any diffusion going on there??!

    I hope no one else cheats by googling it!
  • PRO
    Phil Voice November 25, 2009 at 8:23pm
    "London Plane; the large medullary rays which characterise London Plane (and gave rise to its common trade name Lacewood) are even larger and darker in platanus occidentalis.

    By contrast, the medullary rays of platanus orientalis are smaller and more delicate. London Plane of course came into its own during the Industrial Revolution in England, since its bark – which forms in large flakes which are continuously falling and renewing themselves – allowed the tree to survive the belching pollution of William Blake's 'Dark, satanic mills'.

    London Planes flourished near factories and in cities where other trees struggled and died."

    http://www.lutesandguitars.co.uk/htm/cat.htm
  • Lawncare-4u.co.uk November 25, 2009 at 10:38pm
    'the underground' !!
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