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Key terms: bark cork stem layer cells tree tissue plants periderm phloem center outside woody pine cortex inner epidermis cork cambium surface produce includes dead secondary maple inside composed vascular cambium xylem quercus trunks layer of cells pine bark inner bark woody stem sycamore oak gases canoes callus growth grows innermost burr removed repair gallery covering older lichen outer bark Search external links cited by footnotes on Wikipedia page Bark: |
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