Tiziano wrote:
Jim Lewis wrote:


You aren't peeling enough off. Go deeper than the reddish pink layer,
down to the bare yellow(ish) WOOD. That reddish pink stuff is the
"live" part (cambium) of the tree. It dries to an ugly brown after
exposure.


Hi Jim
but how can sap flow into such dry bark , I expected to
find something more soft & juicy 2-3 mm thick


It doesn't. The sap runs up "tubes" in the outer parts of
the woody section of a stem -- the Xylem -- pulled by the
transpiration of water from the leaves.

The cambium layer -- usually much less than a mm thick -- is
the live cells that make the tree grow larger. It grows in
both directions, making bark on one side and sapwood on the
other.

See:
http://www.enchantedlearning.com/sub...bel/labeltree/

for the very basic of basics of tree anatomy.

Jim Lewis - - Tallahassee, FL - Nature
encourages no looseness, pardons no errors. Ralph Waldo Emerson

************************************************** ******************************
++++Sponsored, in part, by Kevin Bailey++++
************************************************** ******************************
-- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ --
+++++ Questions? Help? e-mail +++++