Knowledge of the basidioporogenous yeasts has increases considerably in recent years. These yeasts are now classified in two taxonomically different groups, the teliospore-forming yeasts and the Filobasidiaceae. There are also other basidiomycetous fungi, such as the Tremellales, with a yeast phase in their life cycle. The descriptions of the yeast states of several of these species have been included in this edition.

The taxonomic system proposed is a large step in the evolution of a satisfactory classification.

More than 1000 pages of information from 16 contributors -well laid out and easy to consult, classified for easy access.

The Fourth Revised Edition, edited by C.P. Kurtzman and J. Fell, is due for publication in 1998.