Hieracium sublividum (Asteraceae) - more than one species.

The material in Swedish herbaria previously identified as Hieracium sublividum (Dahlst.) Johanss. was revised using both the traditional taxonomical approach and PCA analysis based on 44 morphological characters. Only about half of the specimens did belong to H. sublividum s. stricto (known from the provinces Småland, Öland and Östergötland). Three new species were revealed and are described anew as H. askii T. Tyler (from Småland), H. emblae T. Tyler (from Gotland) and H. hangvarense T. Tyler (from Gotland). The characteristics of all four accepted species are described, illustrated and discussed