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Radial section through an old stem of Aristolochia
	- Large (196 Kb) - Scroll down to information With labels Legend: 1 cork 3 collenchyma 4 parenchyma 5 sclerenchyma 7 vascular cambium 8 xylem 9 pith 2 cork cambium 6 phloem 10 ray
English name: Dutchman's pipe Scientific name: Aristolochia sp. Familia: Aristolochiaceae Classis: Dicotyledonas Phylum: Angiospermae Regnum: Plantae
In the woody part wide parenchyma rays provide a connection through which transport of water and nutrients remains possible.