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Abstract
Collections of Bionectriaceae and Nectriaceae from Henan, Hubei and Guangdong provinces, China, were examined. Three new species, Neonectria confusa, N. shennongjiana and N. sinensis, are described and illustrated. Distinctions between the new species and their related taxa are discussed. Phylogenetic relationships among some Neonectria species are investigated based on analyses of nuclear ribosome DNA ITS1-5.8S-ITS2 and β-tubulin partial sequences. Combined analyses of molecular and morphological data suggest that N. confusa and N. shennongjiana can be classified in Neonectria sensu stricto and N. sinensis in the N. mammoidea-Group. A key to the known species of Neonectria from China is provided.
The authors thank Drs Wen-Ping Wu, Xiang-Min Zhang and You-Zhi Wang for providing some of the specimens and cultures for this study and Dr A.Y. Rossman for kindly sending specimens on loan. This project was supported by the National Natural Science Foundation of China (Nos. 30470009, 30670055), Ministry of Science and Technology of China (Special Project for Fundamental Research No. 2006FY120100) and State 863 Project (No. 2008AA 02Z312) to WYZ.