Contributions to species of Xylariales in China-2. Rosellinia pervariabilis and R. tetrastigmae spp. nov., and a new record of R. caudata

摘要

Three species of Rosellinia collected from China are reported based on morphological and molecular characteristics. Rosellinia pervariabilis is proposed as a new species, differentiated by its narrow ascospores (19.5–24.5 × 4–5 μm) without a germ slit.Rosellinia tetrastigmae is also proposed as new and differentiated by its small stromata. Rosellinia caudata is reported as a new record from the Chinese mainland. Detailed morphological descriptions and illustrations are provided, and many new DNA sequences are cited.