CONTENTS ^111 



GOLDEN JUBILEE SYMPOSIUM. Progress and Outstand- 

 ing Achievements in Various Fields of Botany during the Past 

 Fifty Years 55i 



Introduction, by James E. Canright 553 



35. Progress and Outstanding Achievements in Phycology 



during the Past Fifty Years, by George F. Papenjuss 554 



36. Mycology during the Past Fifty Years, by William H. 

 Weston 570 



37. Plant Taxonomy in an Age of Experiment, by Lincoln 

 Constance 5^^ 



38. Fifty Years of Paleobotany, 1906-1956, by Theodor Just 5Q0 



39. Some Aspects of Progress in Plant Morphology during the 

 Past Fifty Years, by Arthur J. Eames 606 



40. Fifty Years of Plant Physiology in the U.S.A., by 



F. W. Went 615 



Index 62g 



