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Stomatal crystallinity patterns of floating aquatic plant species. Liquid crystal polarized light microscopy (LC-PolScope) images of the adaxial leaf epidermis from the early-diverging angiosperms Nuphar lutea (A), Nymphaea alba (B), and the monocotyledons Limnobium laevigatum (C) and Alisma plantago-aquatica (D). The retardance color scale bar codes the retardance range. Scale: 50 µm.
