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Transverse section of the stem of a one year-old elderberry
	- Large (219 Kb) - Scroll down to information With labels Legend: 1 lenticel 3 xylem 4 pith 2 bark
English name: Elderberry Scientific name: Sambucus sp. Familia: Caprifoliaceae Classis: Dicotyledonas Phylum: Angiospermae Regnum: Plantae
the cork, deposited by cork cambium under the epidermis, takes over the protective function of the epidermis. In the area where a stoma was present a lenticel has developed that provides a functional replacement for the stoma (gas exchange)