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9 results filtered with: Pollination by insects
  • On the various contrivances by which British and foreign orchids are fertilised by insects : and on the good effects of intercrossing / by Charles Darwin.
  • On the various contrivances by which British and foreign orchids are fertilised by insects : and on the good effects of intercrossing / by Charles Darwin.
  • Coltsfoot flower and leaf (Tussilago farfara) with an associated insect and its anatomical segments. Coloured etching, c. 1831.
  • On the various contrivances by which British and foreign orchids are fertilised by insects : and on the good effects of intercrossing / by Charles Darwin.
  • A bee with legs perches on the edge of a petal poised to pollinate the centre of a purple flower; an AIDS awareness initiative advertisement about by Ribe and Vjle Counties Health, Denmark. Colour lithograph by Jens Bach Andersen, 1992.
  • On the various contrivances by which British and foreign orchids are fertilised by insects : and on the good effects of intercrossing / by Charles Darwin.
  • On the various contrivances by which British and foreign orchids are fertilised by insects : and on the good effects of intercrossing / by Charles Darwin.
  • On the various contrivances by which British and foreign orchids are fertilised by insects : and on the good effects of intercrossing / by Charles Darwin.
  • On the various contrivances by which British and foreign orchids are fertilised by insects : and on the good effects of intercrossing / by Charles Darwin.