The Sematophyllaceae s.l. (Sematophyllaceae s.str. + Pylaisiadelphaceae) is one of the most diversified families of pleurocarpous mosses, distributed worldwide. The familial definition and subfamilial delimitation of the family have been controversial since their inception. Phylogenetic analyses were carried out using Bayesian inference, maximum likelihood, and maximum parsimony analyses. Our molecular phylogenetic analysis using five molecular markers (nad5, rbcL, rps4, trnL-F, and 26S) from mitochondrial, chloroplast, and nuclear genomes revealed the paraphyly of the Pylaisiadelphaceae and the monophyly of Sematophyllaceae s.l. Based on the molecular and morphological evidence, the Sematophyllaceae s.l. were further divided into six subfamilies, Taxithelioideae, Isopterygoideae, Pylaisiadelphoideae, Aptychelloideae, Platygyrioideae, and Sematophylloideae. The Taxithelioideae is established to accommodate Taxithelium, Taxitheliella, and Vernieri, the Isopterygoideae is established to accommodate Isopterygium and Yakushimabryum, the Pylaisiadelphoideae is newly circumscribed to accommodate Brotherella, Pylaisiadelpha, and Orientobryum, the Aptychelloideae is established to accommodate Aptychella, the Platygyrioideae is temporarily established to accommodate Clastobryella, Clastobryum, Gammiella, Platygyrium, and Trachyphyllum, the Sematophylloideae is resurrected to accommodate the Sematophyllaceae s.str., and Isocladiella, Isocladiellopsis, Mastopoma, Heterophyllium, Pseudotrismegistia, Trismegistia, and Wijkia are transferred to the subfamily. A new classification for the Sematophyllaceae s.l. is then proposed.

中文翻译：

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Sematophyllaceae sl（Hypnales，Bryophyta）的系统发育和分类

Sematophyllaceae sl (Sematophyllaceae s.str. + Pylaisiadelphaceae) 是最多样化的胸膜苔藓科之一，分布于世界各地。家族的家族性定义和亚家族性界定自诞生以来一直存在争议。使用贝叶斯推理、最大似然和最大简约分析进行系统发育分析。我们使用五个分子标记（nad5、rbcL、rps4、trnL-F）进行分子系统发育分析, 和 26S) 来自线粒体、叶绿体和核基因组，揭示了 Pylaisiadelphaceae 的副系和 Sematophyllaceae sl 的单系。基于分子和形态学证据，Sematophyllaceae sl 进一步分为六个亚科，Taxithelioideae、Pylaisiadelphaceae、 Platygyrioideae 和 Sematophylloideae。Taxithelioideae 的建立是为了容纳Taxithelium、Taxitheliella和Vernieri，Isopterygoideae 是为了容纳Isopterygium和Yakushimabryum 的，Pylaisiadelphoideae 被新划为容纳Brotherella、Pylaisiadelpha和Orientobryum，所述Aptychelloideae建立到容纳Aptychella，所述Platygyrioideae暂时建立以容纳Clastobryella，Clastobryum，Gammiella，Platygyrium，和Trachyphyllum，所述Sematophylloideae复活以容纳Sematophyllaceae s.str。，和Isocladiella，Isocladiellopsis，Mastopoma，Heterophyllium，Pseudotrismegistia , Trismegistia和Wijkia转移到亚科。然后提出了 Sematophyllaceae sl 的新分类。