CONTENTS 



Page 



Preface v 



CHAPTER I 



Introduction . 1 



Thallophyta 1 



Algae 2 



Bacteria 4 



Lichens 4 



Myxothallophyta •. • • 5 



Myxom>-cetes 6 



Acrasieae 9 



Labyrinthuleae 11 



Fungi. " 12 



Pliycomycetes 15 



Ascomycetes 16 



Basidiomycetes 17 



Bibliography : Introduction 18 



CHAPTER II 



Phycomycetes 21 



Origin of the Phycomycetes 21 



Thallus 23 



Asexual Reproduction 24 



Sexual Reproduction 27 



Classification 37 



Key to Orders 39 



Bibliography: Phycomycetes 41 



CHAPTER III 



Chytridiales 43 



Key to Families 47 



Plasmodiophoraceae 48 



Woroninaceae 66 



Olpidiaceae 71 



Synchytriaceae 80 



Rhizidiaceae 88 



Cladochytriaceae 100 



Doubtful Chytridiales 107 



Bibliography: Chytridiales 110 



ix 



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