Yu-Mei Wei

Diphyscium suzukii and D. tamasii are reported as new to China. Diphyscium suzukii, previously known only from Japan and categorized as Endangered (CR+EN), is distinguished by smooth leaf cells, relatively small oblong-lanceolate to lingulate leaves, and fimbriate inner perichaetial leaves. Diphyscium tamasii, a Vietnamese endemic with no record since its original description, is characterized by its small stature, strongly reduced vegetative leaves, and apically bifurcate inner perichaetial leaves. Mature sporophytes of D. tamasii are reported here for the first time. An updated key to the Chinese species of Diphyscium is also presented.

Fissidens is one of the most diverse genera of mosses in China. Most members of this genus are terrestrial, with a few preferring tree trunks as substrates. Fissidens pokhrensis is newly discovered in China, occurring at the base of a tree in Yunnan Province. Morphological descriptions and photographs of this species are provided. In addition, an updated identification key is presented for Chinese species of Fissidens characterized by semilimbate leaves and papillose or mammillose laminal cells, including F. pokhrensis .

Kang, K.-L., Dai, Y.-J., Ho, B.-C., Li, M., Zheng, X., Yang, Z.-Q., Wei, Y-M. & Peng, T. 2026. Taxonomische Neubewertung der in China endemischen Art Lindbergia brevifolia und Bestätigung von L. grandiretis für China. – Herzogia 39: 243 – 256. Lindbergia grandiretis (Lindb. ex Broth.) Ignatov & Ignatova, die bislang nur aus Armenien, Georgien und Russland bekannt war, wird als neuer Nachweis für China bestätigt. Zur Klärung ihrer Verwandtschaftsbeziehung wurde ein detaillierter morphologischer Vergleich mit ihrer nahen Verwandten, der in China endemischen L. brevifolia C.Gao, durchgeführt. Der morphologische Vergleich ergab eindeutige Unterschiede in der Form der Blätter und der inneren Perichätialblätter, der Länge der Rippe, der Verzweigung der Papillen, der Kapsellänge, der Morphologie der Exostomzähne sowie der Länge der Basalmembran, wodurch ihre taxonomische Unabhängigkeit bestätigt wurde. Darüber hinaus kann durch Untersuchung von Herbarexemplaren bestätigt werden, dass das derzeitige Verbreitungsgebiet von L. grandiretis in China Ningxia und die Innere Mongolei umfasst, während das Verbreitungsgebiet von L. brevifolia auf Yunnan und Xizang beschränkt ist. Es werden detaillierte morphologische Beschreibungen, Fototafeln, eine Vergleichstabelle für beide Arten sowie ein Bestimmungsschlüssel für alle chinesischen Lindbergia-Arten bereitgestellt.

Yang, Y.-T., Wang, E.-D., Wang, Y.-R., Xia, X.-R., Li, M.-S., Zhu, Z.-M., Xu, Y.-K., Zheng, T.-X., Li, W., Wei, Y.-M. & Wang, J. 2026. Neufund von Fissidens neomagofukui (Fissidentaceae) in China und Diskussion seiner Morphologie und Habitatpreferenz. – Herzogia 39: 257 – 264. Fissidens neomagofukui, eine seltene Moosart, die bislang nur aus Japan und Russland bekannt war, wird erstmals aus China gemeldet. Diese Art zeichnet sich durch kurze, gerade und ungeteilte Peristomzähne aus, die auf der Oberseite große, zerstreute Papillen besitzen. Die Blattrippe endet einige Zellen unterhalb der Blattspitze, die Laminazellen sind glatt und die Blattränder besitzen keinen Saum. Eine detaillierte Beschreibung und eine Abbildung von F. neomagofukui werden präsentiert. Die Entdeckung dieser seltenen Art in China ist auf die effektive Methode der intensiven floristischen Lebensraumbeprobung zurückzuführen. In der Diskussion werden die Anpassungsmerkmale der Sporophyten von Moosen an epiphytische Lebensräume und deren Relevanz für die Artenklassifizierung behandelt.

Fissidens curvatoinvolutus and F. pseudoadelphinus are reported as new additions to China. Previously, F. pseudoadelphinus was only known from Japan. Fissidens curvatoinvolutus, often confused with F. involutus, can be distinguished by its smaller size, crenulate leaf margins, and slightly asymmetrical capsules. Fissidens pseudoadelphinus closely resembles F. teysmannianus, but differs in having narrower, frequently falcated leaves, and a costa that ends far below leaf apex. Detailed photographs, morphological descriptions, and comparisons with similar species are provided.

Following a bryological investigation of Shiwandashan National Nature Reserve in Guangxi, China, Acromastigum herzogii is reported as a new national record, accompanied by a detailed morphological description. Furthermore, two additional species of Lepidoziaceae, Kurzia borneensis and Zoopsis liukiuensis, are documented. The taxonomically poorly understood species K. borneensis is considered here as a distinct and well-circumscribed taxon, new to mainland China. The genus Zoopsis is recorded for the first time from Guangxi.

Summary: Hornworts (Anthocerotophyta) represent a key lineage for understanding fundamental questions in land plant evolution, but their phylogeny and evolutionary history are still not well understood, primarily due to limited genomic resources and insufficient taxon sampling. We conducted comparative genomic analyses of 106 hornwort plastid genomes, including 91 newly generated ones. RNA editing sites were identified by integrating transcriptome data and in silico predictions. Additionally, a new method inspired by marker–capture strategies was proposed to estimate the total number of U‐to‐C editing sites. Hornwort plastomes are larger than those of liverworts and mosses, with rare gene loss or pseudogenization. Both C‐to‐U and U‐to‐C RNA editing occur across all lineages except Leiosporoceros . Diversification rate analyses indicate a major shift between c . 100 and 50 million years ago, possibly linked to the Cretaceous–Paleogene extinction event. Both morphological and molecular evidence support the merging of Folioceros into Anthoceros , and the recognition of two new species in the small genera Paraphymatoceros and Phymatoceros , respectively. This study presents the first large‐scale plastome phylogeny of hornworts, introduces a DNA‐only method for estimating the number of U‐to‐C RNA editing sites, and updates the classification. These results contribute broadly to our understanding of early land plant evolution.

Background/Objectives: Fissidens crispulus Brid. is a dioicous moss with conspicuous axillary hyaline nodules and serrulate leaf margins. It features Neoamblyothallia-type peristome teeth and serves as an ecologically significant model for studying adaptation in the hyperdiverse genus Fissidens (>440 species). Methods: In this study, the complete chloroplast genome of F. crispulus was sequenced and de novo assembled, enabling detailed comparative genomic, phylogenetic, and codon usage bias studies. Results: As the third fully sequenced member of Fissidentaceae, this study deciphers its 124,264–124,440 bp quadripartite genome encoding 129 genes (83 CDS, 32 tRNAs, 8 rRNAs). Repeat analysis identified 125–127 SSRs, dominated by mono-/di-nucleotide A/T repeats (>70%), and dispersed repeats predominantly forward (F) and palindromic (P) (>85%), confirming profound AT-biased composition (GC content: 28.7%). We established 7 hypervariable loci (matK, ycf2, etc.) as novel Dicranidae-wide phylogenetic markers. Codon usage exhibited significant A/U-ending preference, with 12 optimal codons (e.g., GCA, UGU, UUU) determined. Maximum likelihood analyses resolved F. crispulus and F. protonematicola as sister groups with high support value (MBP = 100%). Conclusions: This work provides the foundational cpDNA resource for Fissidens, filling a major gap in bryophyte chloroplast genomics and establishing a framework for resolving the genus’s infrageneric conflicts. Furthermore, it offers critical insights into bryophyte plastome evolution and enables future codon-optimized biotechnological applications.

Ho, B.-C., Alonso-García, M., Chantanaorrapint, S., Ellis, L. T., Promma, C., Rubasinghe, S. C. K., Wei, Y.-M., Ye, W. & Yong, K.-T. 2022. Ergänzungen zur Moosflora von Singapur. – Herzogia 35: 420 – 442. Insgesamt 14 Moosarten werden erstmals für Singapur angegeben. Hierzu gehören fünf Lebermoose, Cephaloziella inaequalis R.M.Schust. (Cephaloziellaceae), Colura cristata Jovet-Ast (Lejeuneaceae), Mizutania riccardioides Furuki & Z.Iwats. (Calypogeiaceae), Radula loriana Castle (Radulaceae) und Riccia fluitans L. (Ricciaceae), acht Laubmoose, Calymperes fasciculatum Dozy & Molk. (Calymperaceae), Calymperes pallidum Mitt. (Calymperaceae), Calymperes subintegrum Broth. (Calymperaceae), Chionoloma induratum Dixon (Pottiaceae), Fissidens holleanus Dozy & Molk. (Fissidentaceae), Pogonatum piliferum (Dozy & Molk.) Touw (Polytrichaceae), Splachnobryum obtusum (Brid.) Müll.Hal. (Pottiaceae), Racopilum cuspidigerum (Schwägr.) Ångstr. (Racopilaceae), und ein Hornmoos, Notothylas breutelii (Gottsche) Gottsche (Notothyladaceae). Cephaloziella, Mizutania, Pogonatum und Racopilum stellen neue Gattungen für Singapur dar, Polytrichaceae und Racopilaceae sind neue Familien. Pogonatum piliferum repräsentiert den ersten und einzigen Vertreter der Klasse Polytrichopsida für Singapur. Beschreibungen sowie Hinweise zu Verbreitung und Ökologie werden für alle Arten bereitgestellt. Abbildungen werden für sieben Arten präsentiert.