Cover photograph (Copyright © 2005, American Society for Microbiology. All Rights Reserved.): Fungi of the Duke Forest (Orange County, N.C.). Clockwise, from upper left: Boletus retipes (bolete), Artomyces pyxidatus (coral mushroom), Boletellus betula (bolete), Russula aeruginea (gilled Russula), Mycena subcaerulea (gilled mushroom), and Pseudocolus fusiformis (a stinkhorn). (See related article on page 5544.)