Leptosporella (Leptosporellaceae fam. nov.) and Linocarpon and Neolinocarpon (Linocarpaceae fam. nov.) are accommodated in Chaetosphaeriales

In this paper we introduce the new species Leptosporella arengae and L. cocois, Linocarpon arengae and L. cocois, and Neolinocarpon arengae and N. rachidis from palms in Thailand, based on morphology and combined analyses of ITS and LSU sequence data. The phylogenetic positions all these new taxa are well-supported within the order Chaetosphaeriales (subclass Sordariomycetidae), but in distinct lineages. Therefore, a new family, Leptosporellaceae is introduced to accommodate species of Leptosporella, while Linocarpaceae, which constitutes a well-supported monophyletic clade is also introduced to accommodate Linocarpon and Neolinocarpon species. Both families are characterised by specific traits, such as the shape of ascomata and filiform, hyaline ascospores, which may be pale brown-yellowish in mass, that demarcate it from other families.

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