Refined families of Dothideomycetes: orders and families incertae sedis in Dothideomycetes

Abstract

Numerous new taxa and classifications of Dothideomycetes have been published following the last monograph of families of Dothideomycetes in 2013. A recent publication by Honsanan et al. in 2020 expanded information of families in Dothideomycetidae and Pleosporomycetidae with modern classifications. In this paper, we provide a refined updated document on orders and families incertae sedis of Dothideomycetes. Each family is provided with an updated description, notes, including figures to represent the morphology, a list of accepted genera, and economic and ecological significances. We also provide phylogenetic trees for each order. In this study, 31 orders which consist 50 families are assigned as orders incertae sedis in Dothideomycetes, and 41 families are treated as families incertae sedis due to lack of molecular or morphological evidence. The new order, Catinellales, and four new families, Catinellaceae, Morenoinaceae Neobuelliellaceae and Thyrinulaceae are introduced. Seven genera (Neobuelliella, Pseudomicrothyrium, Flagellostrigula, Swinscowia, Macroconstrictolumina, Pseudobogoriella, and Schummia) are introduced. Seven new species (Acrospermum urticae, Bogoriella complexoluminata, Dothiorella ostryae, Dyfrolomyces distoseptatus, Macroconstrictolumina megalateralis, Patellaria microspora, and Pseudomicrothyrium thailandicum) are introduced base on morphology and phylogeny, together with two new records/reports and five new collections from different families. Ninety new combinations are also provided in this paper.

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“…The order Parmulariales was included within Dothideomycetes, according to molecular and morphologic analysis (Dai et al 2018, Hongsanan et al 2020, and presently contains a single family Parmulariaceae. Parmulariaceae includes numerous genera (Hyde et al 2013, Hongsanan et al 2020) and has various types in morphology, especially in ascostromata (Inácio & Cannon 2008, Dai et al 2018. This family was introduced to accommodated taxa growing on living leaves, with biotrophic and pathogenic life-styles.…”

“…The order Parmulariales was introduced by Dai et al (2018) with a single family Parmulariaceae. Parmulariales is phylogenetically and morphologically distinct from Asterinales (Dai et al 2018, Hongsanan et al 2017, 2020, however close to Alysidiellaceae (Hongsanan et al 2020). Only the type species of Parmularia, P. styracis Lév.…”

“…Parmulariaceae has a typical biotrophic lifestyle. Genera of this family are usually pathogens growing on living plants, especial leaves, in tropical areas (Inácio & Cannon 2008 (Hongsanan et al 2020, Index Fungorum 2020. This genus is usually parasitic on palm leaves and widely distributed in tropical areas.…”

“…& Arx ex M.E. Barr was introduced by Barr (1979) and comprises 34 genera (Hongsanan et al 2020, Wijayawardene et al 2020. Dai et al (2018) introduced Parmulariales D.Q.…”

“…We are in the process of studying genera of Parmulariaceae in order to provide a natural classification of this large and important family (Hyde et al 2013, Dai et al 2018, Hongsanan et al 2020. These studies involve examination of specimens of type species of the genera, provision of modern descriptions and illustrations or photomicrographs and, resulting with appropriate placement at the family and ordinal levels (Dai et al 2014).…”