Towards a natural classification of annulatascaceae-like taxa Ⅱ: introducing five new genera and eighteen new species from freshwater

Abstract

Annulatascaceae is an interesting and taxonomically confused family as some family members have been placed in different orders/families in Diaporthomycetidae. Although taxonomic changes have been carried out for some genera, many are questionable or their placements are unstable due to a lack of DNA sequence data. In this study, a survey of freshwater annulatascaceaelike species resulted in 23 new taxa, including five new genera (Aquidictyomyces, Fusoidigranularius, Longivarius, Neodiluviicola and Obliquiminima) and 18 new species in 12 genera, i.e. Annulatascus (A. chiangmaiensis, A. nakhonensis and A. songkhlaensis), Aquapteridospora (A. aquatica), Aquidictyomyces (A. appendiculatus), Cancellidium (C.

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