CONTENTS 



INTRODUCTION 



GENERAL . . , 



Vegetative Structure . . 



Sexual Reproduction ...... 



Spores and Spore Mother-cells .... 



Accessory Spores ...... 



Morphology of the Spore ..... 



Classification ....... 



SAPROPHYTISM, PARASITISM AND SYMBIOSIS 



^SAPROPHYTISM 



Saprophytes on Wood ..... 



Saprophytes on Soil 



Coprophilous Fungi . . . . 

 Fungi on Fatty Substrata . . . 

 Fungi producing Alcoholic Fermentation . 

 Soot Fungi ........ 



PARASITISM 



Facultative Parasites . . ... 

 Obligate Parasites 



SYMBIOSIS . 



Endotrophic Mycorhiza . . . ... 



Exotrophic Mycorhiza ..... 



SPECIALIZATION OF SAPROPHYTISM AND PARASITISM 

 Heteroecism ....... 



Biological Species ...... 



REACTIONS TO STIMULI 



Chemotropism ....... 



Hydrotropism ....... 



Aerotropism and Osmotropism .... 



Phototropism ....... 



Phototaxis ........ 



Formative Influence of Light .... 



Geotropism ........ 



ASCOMYCETES 



GENERAL 



The Ascospores ....... 



The Ascus . . 



The Ascocarp ....... 



The Paraphyses ....... 



The Peridium ....... 



Alternation of Generations ..... 



Early Investigators . . . . 



