68.7 MB (4.2 MB compressed)
4843 x 4961 pixels
40.9 x 41.9 cm ⏐ 16.1 x 16.5 in (300dpi)
DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY
Mistletoe stem. Light micrograph of a transverse section through the stem of a mistletoe (Viscum album) plant. The epidermis (outer layer) has a thick layer of cuticle made of waterproof wax (yellow). The inner cortex has bundles of supporting fibres (green) above a ring of phloem (red). Underneath this are the cambium (dark red ring), xylem vessels (brown), patches of parenchyma (green) and primary xylem (pink-green), with an inner bundle of fibres (green). The pith (large, centre) is made up parenchyma (red and green). Magnification: x14 when printed 10 centimetres wide.
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