Five Trichoderma species new to China and notes on two other widespread species
Collections of Trichoderma from different regions of China were examined.Five Trichoderma species,T.alni,T.floccosum,T.parapiluliferum,T.priscilae and T.songyi,are new to China.Descriptions and illustrations of these fungi are provided based on observations of the Chinese materials.Their taxonomic positions are confirmed by sequence analyses of the combined RNA polymerase Ⅱ subunit b and translation elongation factor 1 alpha genes.In addition,T.paraviridescens and T.simmonsii are shown to be widely distributed in China.