Mature Tree Bark -
Mature bark (phellem - outer bark) is the corky outer bark that forms on, or as,
a tree of most species matures. It is primarily made up of suberin. Layers
of green cortex-like tissues often form in fissures on old trees that have
(Click here for info from SHIGO, 2002 on Bark)
See "Inner Bark".
See "Outer Bark".
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