Pluteus and Volvopluteus are two closely related genera of Pluteaceae that comprise saprotrophic fungi. Although the genera have been well-studied in Europe and North and South America, the diversity of Pluteus, mainly Pluteus sect. Pluteus, and Volvopluteus in Turkey is poorly known due to insufficient morphological descriptions and a lack of DNA sequence data. In this study, the diversity of Pluteus sect. Pluteus and Volvopluteus in Turkey is evaluated by employing both morphological features and phylogenetic approaches. A general phylogeny of Pluteus sect. Pluteus based on sequences of nuc rDNA internal transcribed spacer ( = ITS) region is presented and four species are given as new records for Turkey: P. brunneidiscus, P. hongoi, P. pellitus, and P. primus. According to the results of the multigene molecular analyses (ITS, 28S = nrLSU, and 18S = nrSSU datasets) of the genus Volvopluteus, the occurrence of Volvopluteus earlei is reported for the first time in Turkey. |