Abstract
A multigene analysis of a combined ITS, LSU, SSU, rpb2 and tef1 sequence data matrix was applied to infer the phylogenetic position of the genus Teichospora in the Pleosporales, based on isolates from freshly collected material of the generic type T. trabicola and several additional species. Phylogenetic analyses revealed that Misturatosphaeria and Floricola are synonyms of Teichospora. All species of these genera and several species recently described in the genus Curreya belong to Teichospora and are thus combined in this genus. Also, Melanomma radicans and Ramusculicola thailandica are combined in Teichospora. The new name Teichospora parva is established for Misturatosphaeria minima. Three new species, T. melanommoides, T. pusilla and T. rubriostiolata, are described, and an expanded description of T. mariae is given. The family Teichosporaceae is currently confined to Teichospora, which can be phylogenetically clearly separated from Lophiostoma, the type genus of the Lophiostomataceae. The family name Floricolaceae is a synonym of Teichosporaceae. All species described here form apically free paraphyses among immature asci. This finding contradicts the current general dogma that apically free paraphyses are absent in the Pleosporales and questions the wide use of the term pseudoparaphysis.
Highlights
In the Pleosporales, sexual morphs with brown muriform ascospores are difficult to classify
Teichospora trabicola, the generic type, is contained in a highly supported clade comprising the new species T. pusilla, three species formerly placed in Curreya (C. austroafricana, C. grandicipis, C. proteae) and T. (Misturatosphaeria) claviformis
The phylogenetic position of Teichospora based on its type species T. trabicola is here clarified
Summary
In the Pleosporales, sexual morphs with brown muriform ascospores are difficult to classify. The types of many genera have not been recollected and sequenced, and several new genera have been described without sufficient knowledge of the limits of existing genera Important in this respect are species-rich genera. One of these is Teichospora, for which Index Fungorum lists 267 epithets. In foregoing papers, we have determined the phylogenetic position of the generic types of Cucurbitaria (Doilom et al 2013) and Strickeria (Jaklitsch et al 2016). The latter belongs to the Xylariales and is unavailable for dothideomycetous fungi.
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