Abstract
This paper elaborates the advances made in the study of morphology, phylogeny, host association and geography of novel and interesting fungi in China and Thailand. We documented saprobic microfungi from dead twigs of different plant hosts from Annonaceae (Anomianthus dulcis, Cananga odorata and Desmos chinensis), Apocynaceae (Alstonia scholaris) and Magnoliaceae (Magnolia champaca, M. garrettii and M. liliifera) in Yunnan Province, China and northern Thailand. Descriptions, illustrations and discussions on the familial placement of taxa are given based on phylogeny and morphological data. One new genus Muriformispora in Neohendersoniaceae (Dothideomycetes) and twelve new species, Acrocalymma magnoliae, Diaporthe chiangmaiensis, Fuscostagonospora magnoliae, Gyrothrix anomianthi, Hermatomyces anomianthi, Muriformispora magnoliae, Neomassaria alstoniae, N. thailandica, Neoroussoella thailandica, Peroneutypa anomianthi, Pseudochaetosphaeronema magnoliae and Torula canangae are introduced. An amended account of Hermatomyces is provided to include the sexual morph of the genus. New host records or new country records are provided for Acrocalymma pterocarpi, A. walkeri, Amphisphaeria micheliae, Angustimassarina populi, Aurantiascoma minimum, Diaporthe musigena, D. pterocarpi, Eutypella citricola, Gyrothrix oleae, Hermatomyces sphaericus, Lasiodiplodia crassispora, L. exigua, L. ponkanicola, L. pseudotheobromae, L. thailandica, L. theobromae, Magnibotryascoma kunmingense, Memnoniella ellipsoidea, Melomastia clematidis, M. thamplaensis, Neoroussoella entadae, Nectria pseudotrichia, Nigrograna thymi, Periconia byssoides, P. pseudobyssoides, Phaeosphaeria sinensis, Pseudopithomyces chartarum, Pseudofusicoccum adansoniae, Rhytidhysteron neorufulum, Setoapiospora thailandica and Xenoroussoella triseptata.