In the leaf-blade this sometimes aopears as a layer of thickened subepidermal cells, tht hypoderm, often also as subepidermal bundles of sclerenchymatou~ fibres, or as similar bundles extending right across the leaf from mu epidermis to the other and thus acting as struts. [Please select]
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The oscular collars are fairly well developed, but the subepidermal space is not extensive. [Please select]
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