Observations on Pluteaceae in Vietnam. 1. New species and new records of Volvariella

Abstract

Six species of Volvariella are described based on materials collected from Vietnam. Four of them (V. niveosulcata, V. guttulosa, V. ptilotricha and V. pulla) are new species, one (Volvariella sp.) is presented as provisional, and two new collections of V. morozovae, a rare species previously known only from the type locality, are described and discussed. Molecular phylogenetic reconstructions are presented based on nrITS and nrLSU regions.