Table of contents

April 2014 - Volume 69 - 4

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Cover caption: Pollen dispersal. Wind dispersal of pollen from the lesser pond sedge (Carex acutiformis). Each pollen grain contains a male gamete, which fertilises the ovules (eggs), initiating the formation of plant seeds. Pollen is a major cause of hay fever (allergic rhinitis and pollenosis). Credit: Andy Harmer/SCIENCE PHOTO LIBRARY.