2 CONTENTS. 



Page. 

 RELATIONS OF ASCOMYCETES AND BASIDIOMYCETES 



Evidence from binucleated cells for relations of rusts and Basidiomycetes. . . 76 

 Resemblances in Ascomycetes and Basidiomycetes due to parallelism in func- 

 tions 77 



ALTERNATION OF GENERATIONS IN HIGHER FUNGI 



Evidence from reduction phenomena and binucleated cells 79 



Correlation of triple division in ascus with two preceding nuclear fusions ... 81 



Relations of ascus, teleutospore, basidium, and tetrasporange 85 



Summary as to sexual reproduction and alternation of generations in higher 



fungi 86 



INDEX OF LITERATURE 88 



EXPLANATION OF FIGURES IN PLATES 92 



