Dothideomycetes is one of the largest and most diverse class of ascomycetes. Its members are reported from many plant parts, but less has been reported from wild seed pods and fruits. Dothideomycetes can be seed-borne or colonize fruits and seed pods when they fall to the ground. We studied the Dothideomycetes found on wild fruits and seed pods, mainly in Thailand (tropical), and to a lesser extent, in China (temperate) and UK (temperate). We describe eight new genera, 50 new species, provide 38 new host records and propose seven new combinations. The new genera are: Amorocoelophoma (Amorosiaceae), Cylindroaseptospora (Didymosphaeriaceae), Discotubeufia (Tubeufiaceae), Leucaenicola (Bambusicolaceae), Neolindgomyces (Lindgomycetaceae), Pleohelicoon (Pleomonodictydaceae), Quercicola (Astrosphaeriellaceae) and Xenoastrosphaeriella (Astrosphaeriellaceae). The new species are: Acrocalymma pterocarpi, Allophoma siamensis, Amorocoelophoma cassiae, Anteaglonium gordoniae, Atrocalyx krabiensis, Austropleospora keteleeriae, Caryospora quercus, Cladosporium entadae, C. magnoliigena, Cycasicola leucaenae, Cylindroaseptospora leucaenae, C. siamensis, Delitschia nypae, Dictyocheirospora lithocarpi, Didymella magnoliae, Didymocrea leucaenae, Diplodia magnoliensis, Discotubeufia browneae, Dothiorella lampangensis, Ernakulamia krabiensis, Gloniopsis fluctiformis, G. leucaenae, Lasiodiplodia avicenniarum, L. swieteniae, Leucaenicola aseptata, L. phraeana, Neodeightonia planchoniae, Neolindgomyces pandanae, Neopyrenochaeta cercidis, Neoroussoella entadae, N. leucaenae, Ochroconis ailanthi, Periconia delonicis, Phaeosphaeria sinensis, Pleohelicoon fagi, Psedochaetosphaeronema siamensis, Pseudoberkleasmium acaciae, Pseudocoleophoma bauhiniae, Pseudofusicoccum calophylli, Pseudohelicomyces quercus, Pseudopithomyces entadae, Quercicola fusiformis, Q. guttulospora, Remotididymella bauhiniae, Spegazzinia radermacherae, Stagonosporopsis pini, Stomiopeltis phyllanthi, S. sinensis, Tubeufia entadae and Vaginatispora nypae. These novelties represent both sexual and asexual morphs of species in 35 families of this class. Taxonomic novelties are morphologically illustrated and phylogeny investigated based on multi-gene sequence data. Our results indicate that the plant genus Leucaena harbours higher species diversity.
