Bark, Inner (phloem)  - Phloem, or inner bark, is a transport tissue.  It transports energy-containing substances made in leaves toward non-woody absorbing roots.  Inner bark is made up of living and dead cells.
(Click here for info from SHIGO, 2002 on Bark)

See "Inner Bark."  

(See TREE ANATOMY, SHIGO)

Image Source - TREES, ASSOCIATES, and SHIGO (2 CD set).
 

Picture - A CROSS SECTION

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