This is an exciting time to produce an overview of the systematics and evolution of the fungi. Molecular and subcellular characters have given us our first view of the true phylogeny of the fungi. The systematic chapters present detailed illustrated treatments of specific fungal groups with the authors' interpretation of the systematics of that group as well as a survey of specific economic, ecological, morphological, ultrastructural, molecular and cultural data. Other chapters, in addition to treating techniques useful in modern mycology, provide the reader with views of the place of the fungi among the Eukaryotes and relationships within the Mycota. Volume VII, Part A, includes an overview of the fungal hierarchy, Pseudomycota, Chytridiomycota, Zygomycota, Ascomycota and their yeasts, and anamorphic states. Volume VII, Part B, includes the Basidiomycota and their yeasts, and chapters on speciation, molecular evolution, preservation, computer techniques, and nomenclature.