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Sunflower Stem Cross Section


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Sunflower Stem Cross Section. For studying the internal structure of a typical dicot stem, the stem cross section of a young sunflower or cucurbita is. The interfascicular regions between the vascular bundles are thick compared to the solenostele, where they were too thin to be visible.

Sunflower Stem (CrossSection) Prepared Microscope Slide
Sunflower Stem (CrossSection) Prepared Microscope Slide from www.acornnaturalists.com

Web dicot stem cross section. Vascular bundles are arranged in a ring. Web cross section of a young sunflower (helianthus) stem, magnified 100x.

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Sunflower Stem (CrossSection) Prepared Microscope Slide

Sunflower stems are quite tough, and this toughness is in part due to the layer of collenchyma cells positioned to give the stem mechanical stability. Web in this cross section of a dicot stem note the collenchyma cells in the cortex just under the epidermis. The interfascicular regions between the vascular bundles are thick compared to the solenostele, where they were too thin to be visible. Web cross section of sunflower stem showing epidermis (a), cortex (d), pith (c ) and vascular bundle (b), with large cap of phloem fibers and lignified xylem vessels.

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