80.3 MB (80.0 MB compressed)
5244 x 5351 pixels
44.5 x 45.2 cm ⏐ 17.5 x 17.8 in (300dpi)
DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY
Butchers broom stem. Polarised light micrograph of a section through a butchers broom stem (Ruscus aculeatis) showing many vascular bundles (dark clusters) within the plant cortex (orange) and supporting fibres (blue). Each vascular bundle consists of an outer circle of fibres (blue) surrounding phloem (dark brown) and xylem (brown) tissue. Phloem transports carbohydrates and plant hormones around the plant while xylem transports water and mineral nutrients from the roots throughout the plant. Magnification: x44 when printed 10 centimetres wide.
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