Peatswamp forest is a unique habitat that supports high biodiversity, particularly fungal diversity. The current study collected submerged and dead plant parts from Eleiodoxa conferta, Eugeissona tristis and Licuala paludosa from a peatswamp forest in Narathiwat Province, Thailand. Morphological features coupled with multigene phylogenetic analyses of ITS, LSU, rpb2 and tef1-a sequence data identified our isolates as new Distoseptispora species (viz. D. arecacearum sp. nov., D. eleiodoxae sp. nov. and D. narathiwatensis sp. nov.). Morphological descriptions, illustrations and notes are provided. [ABSTRACT FROM AUTHOR]