Two new species of Sugitazyma (Trimorphomycetaceae, Tremellales) from China: S. polliae and S. pingtangensis

Sugitazyma is a genus of basidiomycetous yeasts with only one known species, Sugitazyma miyagiana . To further explore the diversity of this genus, field surveys were conducted in Guizhou and Hainan Provinces, China. Phylogenetic analyses based on the internal transcribed spacer (ITS) region and the D1/D2 domain of the large subunit (LSU) rRNA gene revealed that four isolates from plant leaves, represent two new species of Sugitazyma : Sugitazyma polliae sp. nov . (holotype strain GDMCC 2.527 T ) and Sugitazyma pingtangensis sp. nov . (holotype strain CICC 33642 T ). Descriptions and illustrations of the two new species are provided, together with comparisons with closely related taxa. A key to the species of Sugitazyma is also presented.