Duplex PCR revealed that the Kladnica, Šanac and Gojna Gora localities were G. pallida (lanes 3, 4 and 5) and Milatovići was G. rostochiensis (lane 6) (Fig. 8). The two sets of primers amplified products of the 239 bp fragment for G. pallida and the 274 bp fragment for G. rostochiensis in the ITS-1 region.