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"The bark lies immediately beneath the epidermis. It consists of several layers. In the early state it is cellular, and is exactly like the pith with which it is in contact; but by the production of vessels and woody fiber, they are separated and become very different in appearance and constitution. The bark consists of two portions, the cellular and vascular, the latter of which is called liber, and the inner portion of the bark."—Darby, 1855

The Bark

"The bark lies immediately beneath the epidermis. It consists of several layers. In the early state…

Two men cutting cork, made from the bark of the cork oak (Quercus suber).

Cork

Two men cutting cork, made from the bark of the cork oak (Quercus suber).