Ascomycetes
This classification has since been invalidated. The current classification is Ascomycota, Taxonomic Serial No.: 610624
"Terrestrial and aquatic fungi with the hyphae septate but the septa perforated; complete septa cut off the reproductive bodies, such as spores or gametangia. Chitin is predominant in the cell walls. Sexual reproduction involves the formation of a characteristic cell, the ascus, in which meiosis takes place and within which spores are formed. The hyphae in many ascomycetes are packed together into complex "fruiting bodies" known as ascocarps. Yeasts are unicellular ascomycetes that reproduce asexually by budding. There are about 30,000 species."
Biology of Plants, Fourth Edition, Worth Publishers Inc., Stanford University, Peter H. Raven and Helena Curtis, ©1971
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