The lower layer of cells (the epidermis) was stripped from a lily leaf (with a steady hand!) and stained with Toluidine Blue. By viewing the stained epidermis using a polarised light microscope, the different cells present can be seen, including the guard cells which surround the stomata (mouth like structures which allow gaseous diffusion across the normally impermeable epidermis). The guard cells stain a slightly different colour due to the difference in the chemical structure of the cell walls.
Blank inside so perfect for any occasion.
Cards measure 6 inches (150mm) square and are printed in the UK on high quality card stock. Supplied with a white envelope and individually packed in cellophane bags for protection.
All cards have a description of the image on the reverse.
Choose any five cards for £11 or any ten for £20 – simply use the discount codes ‘5cards’ or ‘10cards’
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