PREFACE TO THE SECOND EDITION xiii 



for any shortcomings in these groups, however, is mine. H. H. Bartlett, 

 as before, has supplied the Latin descriptions of new taxa, for which 

 I am indebted to him. J. S. Karling has graciously given permission to 

 quote certain descriptions from his considerable publications on the 

 Phycomycetes. The portrait of Aladar Scherffel was obtained through 

 the good offices of Olga Sebestyen of the Hungarian Institute for Bio- 

 logical Research at Tihany. 



The preparation of the manuscript and drawings was greatly facili- 

 tated by the efforts of Margaret Barr Bigelow. Marilyn Everett Wilson 

 and Martha Jane Stockard were of much help in the preparation of 

 copy and in proofreading. To all these I wish to express my thanks. 



F. K. S., Jr. 



Ann Arbor, Michigan 

 March, 1959 



