Herbaceous Dicot Vine: Cucurbita - Long Section: Cucurbita Stem Magnification: 100x The Epidermis Is Usually Single Layered With An Outer Cuticle And Multicellular Trichomes. The Cortex Consists Of A Conspicuous Hypodermis Of Parenchyma Cells With Collections Of Collenchyma Cells At The Stem Ridges. The Deepest Layer Of The Cortex Is Marked By A Starch Sheath (large Barrel-shaped Cells Contain Starch Granules). Photo