Аннотация:Three new species of Entoloma subgenus Cyanula (Entoloma argus, E. arion, and E. icarus) from Kon Chu Rang NatureReserve and one species of subgenus Claudopus (E. daphnis) from Cat Tien National Park were discovered during aninvestigation of the diversity of the mycobiota of Central and South Vietnam and are described here. Illustrated descriptionsof their macro- and microscopic features and discussion of similar taxa are given. Phylogenetic analysis was based onnrITS1-5.8S-ITS2 and nrLSU regions. The results confirm the polyphyletic origin of the pleurotoid basidiocarp form in thegenus Entoloma.