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.

在2013年最后一本专着《丝裂藻科》的专着之后，已经出版了许多新的分类学和分类方法。在2020年，利用现代分类法扩展了十二指肠科和肺孢菌科的家庭信息。在本文中，我们提供了有关细单胞菌的无性繁殖体和无性系的完善的更新文档。每个家庭都有更新的描述，注释，包括代表形态的数字，可接受的属种列表以及经济和生态意义。我们还为每个订单提供系统发育树。在这项研究中，将31个由50个家庭组成的订单分配给了丝藻纲中的不动产订单，将41个家庭视为一个家庭。因缺乏分子或形态学证据而致癌。引入了新的订单，Catinellales，以及四个新的家族，Catinellaceae，Morenoinaceae Neobuelliellaceae和Thyrinulaceae。介绍了七个属（新布氏杆菌，假微型甲状腺，鞭毛鞭毛虫，Swinscowia，巨缩孔菌，假单胞菌和Schummia）。七新种（Acrospermum螨，Bogoriella complexoluminata，Dothiorella ostryae，Dyfrolomyces distoseptatus，基于形态学和系统发育，介绍了巨节藻，小孢子虫和泰国假小甲状腺菌，以及两个新的记录/报告和五个来自不同家族的新收藏。本文还提供了90种新组合。