Sunday, 3 June 2007

Holey Loggy

Holey Loggy

Tree trunk eaten out hollow or man made? I don't know. What I care is that it makes interesting subject. Check out the weathered wrinkles and its barks.

In old stems the epidermal layer, cortex, and primary phloem become separated from the inner tissues by thicker formations of cork. Due to the thickening cork layer these cells die because they do not receive water and nutrients. This dead layer is the rough corky bark that forms around tree trunks and other stems. In smaller stems and on typically non woody plants, sometimes a secondary covering forms called the periderm, which is made up of cork cambian, cork and phelloderm. It replaces the dermal layer and acts as a covering much like the corky bark, it too is made up of mostly dead tissue. The skin on the potato is a periderm.

(courtesy of

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