Summary1This paper is an investigation into the mycological flora characteristic of grasslands with particular reference to certain soil types.2Twenty stations were examined over a period of two years, the stations being representative of chalk, clay and sand soils.3The experimental method is briefly described and ecological notes on the twenty stations are given in detail.4Lists of the fungi found on grasslands in general and on each of the three soil types are given, and the constancy of species and frequency of individuals are discussed in relation to grasslands as a whole and in relation to each soil type.5The results are discussed and a comparison made between the fungi of grasslands and those of oakwoods and beechwoods.