The most widely accepted system, that proposed by Brian Mathew in 1982 was based on Maw's system, but with less emphasis on flowering times. This mainly depended on three character states: the presence or absence of a prophyll (a basal spathe); the aspect of the style; the corm tunic. and included 81 species, however, one of these, Crocus medius was later recognized as a synonym of Crocus nudiflorus.
The most widely accepted system that proposed by Brian Mathew in 1982 was based on Maw's system, but with less emphasis on flowering times. This mainly depended on three character states: the presence or absence of a prophyll (a basal spathe); the aspect of the style; the corm tunic. and included 81 species, however, one of these, Crocus, medius was later recognized as a synonym of Crocus nudiflorus.