Si He

Phylogenetic position of the genus Bryhnia Kaurin (Brachytheciaceae, Bryophyta) inferred from chloroplast (rpl16, trnG, trnL–F) and nuclear (ITS) sequence data

Abstract The systematic position of the genus Bryhnia Kaurin has been problematic and remains unsettled. A phylogenetic analysis of Bryhnia and closely related genera, based on the nuclear marker ITS1–5·8S–ITS2 and the plastid markers rpl16, trnG, and trnL–F, was carried out to clarify their relationships and systematic positions. The phylogenetic trees generated from Maximum parsimony and Bayesian analyses show that Bryhnia s.s., represented by B. novae-angliae (Sull. & Lesq.) Grout, B. hultenii E.B.Bartram, and B. scabrida (Lindb.) Kaurin, forms a maximally supported clade nested within Brachythecium Schimp. ‘Bryhnia scabrida’ sensu is Bryhnia brachycladula Cardot, and together they form a monophyletic group with Eurhynchiadelphus eustegia (Besch.) Ignatov & Huttunen and Myuroclada maximowiczii (G.G.Borshch.) Steere & W.B.Schofield. We propose the inclusion of the species currently recognized in Bryhnia in Brachythecium, with the transfer of Bryhnia brachycladula to the genus Myuroclada Besch. Bryhnia brachycladula is further treated as a synonym of the new combination, Myuroclada longiramea (Müll.Hal.) M.Li, Y.F.Wang, M.S.Ignatov & S.Huttunen.

Plagiomnium guizhouense Y.-J.Yi & S.He sp. nov. (Mniaceae) found in southwestern China

Abstract A new species of Plagiomnium (Mniaceae), P. guizhouense Y.-J.Yi & S.He from Guizhou, China is described and illustrated. The new species is similar to P. affine in having spinosely serrate leaf margins with teeth consisting of up to 4 or more cells, a broadly elliptic leaf shape, and a decurrent leaf base, but is distinguished from the latter species by having a cuspidate leaf apex, broader marginal differentiation with borders consisting of 4–5 rows of linear, thick-walled cells, strongly ciliate marginal teeth that are sometimes branched and up to 7 cells long in upper fertile stem leaves and perichaetial leaves, and a much shorter leaf costa that ends just above mid-leaf in the lower leaves.

New combinations for two species of Wijkia (Pylaisiadelphaceae) and a new name in Ectropothecium (Hypnaceae)

Wijkia H.A.Crum is a genus established by Crum (1971) to accommodate species previously placed in Acanthocladium Mitt., an illegitimate homonym. It was originally and traditionally placed in the Sematophyllaceae until recently (Ramsay et al.,

A newly updated and annotated checklist of the Anthocerotae and Hepaticae of Qinling Mts., China

An updated checklist of the Anthocerotae and Hepaticae for Qinling (Mts.) recognizes 261 species, 20 varieties, 9 subspecies and 2 forms in 86 genera and 44 families. The distributional ranges are provided for each taxon in Qinling. The information in this paper is based on a review of the previous reports up to 2014 and the specimens held in PE, KUN, HSNU, SDNU, WUK and WNU herbaria. Eight genera, 122 species, 6 varieties and 6 subspecies are new records for Qinling, including two taxa newly recorded for China. Fifteen species, 8 varieties, and 2 forms are endemic to China.

Aerobryum brevicuspis S.He (Brachytheciaceae), a new species from northern Vietnam

A new species of Aerobryum Dozy & Molk. (Brachytheciaceae), A. brevicuspis S.He from Lao Cai Province, northern Vietnam is described and illustrated. The new species resembles epiphytic A. speciosum Dozy & Molk. in the presence of pendent, sparsely branched stems, similar shape of leaves and areolation, but differs by its apiculate to cuspidate leaf apices, a single, faint or sometimes double costae in branch leaves, rather differentiated alar cells, the presence of a central strand in the stems, and numerous clustered axillary hairs that are often 5-8(-10) cells long.

Atrichum laoshanense Y.-J.Yi & S.He, a new species of Polytrichaceae from eastern China

Atrichum laoshanense Y.-J.Yi & S.He, a new species of Polytrichaceae from Laoshan mountain in Shandong Province, eastern China, is described and illustrated. The new species resembles, and is related to A. angustatum (Brid.) Bruch & Schimp., but differs in the presence of stellately papillose median leaf cells, multicellular laminal teeth with well-defined outgrowths of pedestal cells on the distal dorsal lamina, and papillose stem epidermal cells. An updated key to species of Atrichum in China is presented.

Pseudoparaphysanthus linisii (Neckeraceae), a new combination and a new record for mainland South-east Asia

Stereophyllum linisii Enroth & B.C.Tan (Stereophyllaceae), a rheophytic species, is transferred as Pseudoparaphysanthus linisii (Enroth & B.C.Tan) S.He, Sukkharak & Chantanaorr. (Neckeraceae). The new combination belongs to the recently segregated genus that was established among Neckeropsis sect. Pseudoparaphysanthus. The species has recently been discovered in Thailand and thus new to mainland South-east Asia, representing the first record outside the type locality in the Philippines. Along with the description based on the Thai collection, light microscope photographs of the features of morphological importance and line drawings of the phyllotaxy of this species as well as a key to the genus Pseudoparaphysanthus are provided.

Didymodon kunlunensis D.P.Zhao, S.Mamtimin & S.He (Pottiaceae), a new species from Xinjiang, China

Didymodon kunlunensis D.P.Zhao, S.Mamtimin & S.He is described as a new species found in Xinjiang, China. The new species is characterised by a combination of the following characters: ovate leaves with laminal cells always smooth, red colour in KOH, recurved leaf margins from base to apex, a percurrent costa without dorsal and ventral stereid bands in cross section, a distinct stem central strand and the presence of gemmae in the leaf axils. Light microscope photographs of the significant characters are provided and its distinctions from closely related taxa are discussed. A key to Chinese Didymodon species with smooth laminal cell is provided.

Range Extension of Didymodon tibeticus to Mongolia and a New Synonym of Didymodon nigrescens

Abstract: Zhao, D.-P., He, S., Tsegmed, Ts. & Mamtimin, S. 2018. Range extension of Didymodon tibeticus to Mongolia and a new synonym of Didymodon nigrescens. – Herzogia 31: 311–316. Didymodon tibeticus (Pottiaceae) is reported from Mongolia for the first time outside of the type locality. Didymodon rigidulus var. perobtusus is proposed as new synonym of D. nigrescens.