Discovery from a large-scaled survey of Trichoderma in soil of China

The first large-scaled survey of soil-inhabiting Trichoderma is conducted in 23 provinces of China. Twenty-three new species belonging to the green-ascospored clades are discovered. Their phylogenetic positions are determined by sequence analyses of the combined partial sequences of translation elongation factor 1-alpha and the second largest RNA polymerase subunit encoding genes. Morphology and culture characteristics are observed, described and illustrated in detail. Distinctions between the new species and their close relatives are compared and discussed. They are named as: T. aggregatum , T. alpinum , T. bannaense , T. breve , T. brevicrassum , T. byssinum , T. chlamydosporicum , T. concentricum , T. ganodermatis , T. hainanense , T. hengshanicum , T. hirsutum , T. hunanense , T. ingratum , T. liberatum , T. linzhiense , T. longisporum , T. polypori , T. pseudodensum , T. simplex , T. solum , T. undatipile and T. zayuense .