Periderm-2

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perid-2-300.jpg (37652 bytes)
Cortex of a woody stem with an early stage of Periderm development in the outer Cortex.		 Peri-2-300.jpg (21261 bytes)
Magnified Image of the Periderm in the image to the left. Periclinal Divisions in the Phellogen produce cells predominately towards the Outside in radial files. If you trace a cell file backwards you will arrive at the Cork Cambium or Phellogen

Cork cells are dead at maturity!Peri-2-300Lab.jpg (28400 bytes) Consequently, all cells and tissues outside of the cork die. The Epidermis in the adjacent image is dead. Locate the Epidermis and note the presence of a Cuticle.

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