GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Light micrograph of one unripe seed (green) and two ripe seed grains (brown) of the scarlet pimpernel plant, Anagallis arvensis, a common wild flower. Microscopic contrast technique : Incident lighting. Magnification 40x when printed 10 centimetres wide.
Model release not required. Property release not required.