CONTENTS 



CHAPTER PAGE 



I The Structure and Classification of the Fungi 1 



Position of Fungi in the Plant Kingdom. Mycelium. Cells of 

 Fungi. Oidia and Yeast-like Cells. Spores. Dikaryotic Mycelium. 

 Homothallism and Heterothallism. Heterogamy and Isogamy. 

 Basidiomycetes, Ascomycetes, and Phycomycetes; Life Cycles of 

 Representative Fungi. Key to Classes and Subclasses of Perfect 

 Fungi. 



II Variations in the Lower Fungi 35 

 Pleomoiphism or Degeneration. Microbic Dissociation. Sectors 

 and Secondarj^ Colonies. Induced Variations. Variations in In- 

 fection. Variations in Morphology and Physiolog^^ Reversible 

 Variations. Genetics of Fungi. Practical Considerations. Rela- 

 tion of Variations to Taxonom5^ 



III Methods for Studying Molds, Yeasts, and Actinomycetes 49 

 Culture Media. Isolation of Fungi. Methods of Study of Physio- 

 logical Taxonomic Characters of Yeasts. Giant Colonies. Mor- 

 phologJ^ Slide Cultui-es. Examination of Tissues and Exudates. 



IV Molds Belonging to the Phycomycetes 81 

 Entomophthorales. Families of Mucorales. Important G«nera. 



V Molds Belonging to the Fungi Imperfecti and the Ascomycetes 94 

 Position of Fungi Imperfecti. Vuillemin's Classification. Sac- 

 cardo's Classification. Aspergillus. Penicillium. Cladosporium and 

 Black Yeasts. Other Genera of Fungi Imperfecti. Neurospora. 



VI Fungus Diseases of Man and Animals — Gener.\l Considerations 119 

 Types of Mycoses. Host Specificity. Sensitization. Histology. 

 Toxins. Immunity Reactions. Serology. Allergies. Skin Test- 

 ing. Asthma. Treatment. 



VII Infections Caused by Molds 141 



Coccidioidomycosis. Coccidioidin. Natural Habitat of Coccidioi- 

 des. Dermatophytosis. Dermatophytes. Key to Principal Species. 

 Principal Types of Dermatophytosis. Saprophytic Skin Fungi. 

 American Blastomycosis. Blastomyces dermatitidis. South Amer- 

 ican Blastomycosis. Histoplasmosis. Histoplasma capsulatum. 

 Sporotrichosis. Sporotrichum. Chromoblastomycosis. Phialophora. 

 Aspergillosis. M3'cetoma. 



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