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A collection of Orbilia was found on rotten wood in Xishuangbanna County, Yunnan province, China. It is characterized by cylindrical-clavate ascospores, slightly twist, tapered and rounded to the apex, with ellipsoid to rod-shaped spore bodies, which was not described within the known Orbilia species. Furthermore, the ITS sequences of ribosomal DNA of related Orbilia species were compared. We report it as a new Orbilia species according to combination of morphology and rDNA sequence analysis.