This volume is based on the National Academy of Sciences′ Colloquium on the Variation and Evolution in Plants and Microorganisms: Toward a New Synthesis 50 Years after Stebbins. The articles appearing in these pages were contributed by speakers at the colloquium and have not been independently reviewed. Any opinions, findings, conclusions, or recommendations expressed in this volume are those of the authors and do not necessarily reflect the views of the National Academy of Sciences.

Library of Congress Cataloging-in-Publication Data

Variation and evolution in plants and microorganisms : toward a new synthesis 50 years after Stebbins / Francisco J. Ayala, Walter M. Fitch, and Michael T. Clegg, editors.

p. cm.

Includes bibliographical references and index.

1. Plants—Evolution—Congresses. 2. Plants—Variation—Congresses.

I. Ayala, Francisco José, 1934- II. Fitch, Walter M., 1929- III. Clegg, Michael T., 1941-IV. Colloquium on the Variation and Evolution in Plants and Microorganisms: Toward a New Synthesis 50 Years After Stebbins (2000 : Beckman Center of the National Academies)

QK980 .V37 2000

581.3'8--dc21

00-010861