Neopestalotiopsis Species Associated with Flower Diseases of Macadamia integrifolia in Australia

Macadamia (Macadamia integrifolia) is native to eastern Australia and produces an edible nut that extensively cultivated in commercial orchards several countries. Little known about the diversity of fungi associated with diseases macadamia inflorescences. A survey dry flower disease detected isolates Neopestalotiopsis (Pestalotiopsidaceae, Sordariomycetes). Five new species were identified based on molecular phylogenetic analyses concatenated gene sequences internal transcribed spacer (ITS), β-tubulin (TUB), translation elongation factor 1-alpha (TEF1α). The are named drenthii, N. maddoxii, olumideae, vheenae, zakeelii, described by molecular, morphological, cultural characteristics. ecology their pathogenic, saprophytic, or commensal ability not determined.