CONTENTS 



Page 



Preface to the American Edition vii 



Preface to the German Edition ix 



Chapter 



I. Introduction 1 



II. The Thalltjs 3 



III. Reproductive Organs 7 



IV. Sexual Organs and Sexuality 11 



V. Archimycetes 17 



Olpidiaceae 17 



Synchytriaceae 20 



Plasmodiophoraceae 24 



Woroninaceae 26 



VI. Phycomycetes 30 



VII. Chytridiales 33 



Rhizidiaceae 35 



Rhizophidieae 36 



Entophlycteae 37 



Harpochytrieae 39 



Chytridieae 40 



Rhizidieae 40 



Hyphochytriaceae 45 



Cladochytriaceae 45 



VIII. Oomycetes 51 



Monoblepharidaceae 54 



Blastocladiaceae 58 



Ancylistaceae 59 



Saprolegniaceae 63 



Leptomitaceae 70 



Peronosporaceae 73 



IX. Zygomycetes 92 



Mucoraceae 94 



Endogonaceae 113 



Entomophthoraceae 117 



Basidioboleae 117 



Entomophthoreae 120 



X. Ascomycetes 127 



XL Hemiascomycetes — Endomycetales 137 



Dipodascaceae 137 



Endomycetaceae 139 



Saccharomycetaceae 148 



xi 



31940 



