DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY
Lime tree stem wound. Light micrograph of a section through the wounded stem of a lime tree (Tilia europaea). The outer epidermis has been shed and replaced by a layer of cork (dark red). At this point there has been a wound so the meristem (blue with red nuclei) has produced a layer of new cells. The periderm has then laid down outer layers of cork to plug the hole to stop the ingress of fungi, bacteria and insects. Magnification: x37 when printed 10 centimetres wide.
Model release not required. Property release not available.