Taxonomic structure of gilled Agaricales reported from Ukraine. The area of rectangles corresponds with the relative number of species and infraspecific taxa within a particular family. The richest families were Tricholomataceae (136 species and infraspecific taxa), Agaricaceae (130 taxa), Cortinariaceae and Psathyrellaceae (each included 104 taxa) and Inocybaceae (96 species and infraspecific names). Families Hydnangiaceae, Tubariaceae, Porotheleaceae and Clavariaceae included fewer than ten species each and were not labelled in the Figure.