New species of Diaporthe (Diaporthaceae, Diaporthales) from Bauhinia variegata in China

<i>Diaporthe</i> species are known as endophytes, saprobes and pathogens infecting a wide range of plants and resulting in important crop diseases. In the present study, four strains of <i>Diaporthe</i> were obtained from diseased leaves of <i>Bauhiniavariegata</i> in Guangdong Province, China. Phylogenetic analyses were conducted to identify these strains using five gene regions: internal transcribed spacer (ITS), calmodulin (<i>cal</i>), histone H3 (<i>his3</i>), translation elongation factor 1-α (<i>tef1</i>) and β-tubulin (<i>tub2</i>). The results combined with morphology revealed two new species of <i>Diaporthe</i> named <i>D.bauhiniicola</i> in <i>D.arecae</i> species complex and <i>D.guangzhouensis</i> in <i>D.sojae</i> species complex.