sp. nov. (Bacillariophyta) from the Yongle River in Hunan Province, China.

A new species, Bing Liu & Rioual, , found in the Yongle River, a tributary of the Xiang River (Hunan Province, southern China) is described on the basis of morphological observations made under light and scanning electron microscopes. is distinguished from other taxa by a unique combination of characters that includes its lanceolate valve outline with rostrate apices, sternum gradually becoming wider from valve apices to center, and a greater valve width than the other members of the genus. inhabits the epilithic community in the headwaters of a freshwater river.

Insights into phylogenetic relationships and gene rearrangements: complete mitogenomes of two sympatric species in the genus (Anura, Ranidae).

Mitochondrial genomes (also known as mitogenomes) serve as valuable molecular markers and have found widespread applications in molecular biology and ecology. There is abundant sequence variation in vertebrate mitogenomes, and occasionally, they exhibit gene rearrangements. In this study, two Chinese endemic species, and , were sequenced and analyzed to obtain their complete mitogenomes.

 sp. nov. (Bacillariophyta) from the Shun River in Hunan Province, China.

A new species, , was found in the Shun River of Hunan Province, southern China, and its morphology was described based on light and scannning electron microscope obervations. is characterized by its lanceolate valve outline, apiculate valve apices, slightly undulate valve margins, mostly biseriate striae, variable central area, and closed valvocopula. Many abnormal valves of were observed in the samples investigated and the most frequent morphological abnormalities consisted of a lack of symmetry relative to the apical axis caused by a unilateral expansion in the middle part of the valve.

 (Primulaceae), a new species from Hubei, Central China.

In this study, we describe and illustrate a new species, L.S.Yang, Z.

A new freshwater species of (Bacillariophyta) from Hunan Province, China.

This study describes a new species of , , on the basis of light and scanning electron microscope images. is characterised by its linear valve outline, extremely divergent striae, and very large hexagonal central area occupying ca. 1/5-1/8 of the valve length.

The diatom genus (Bacillariophyta) in China.

This study deals with species found and described from two regions of China with large climate differences during the period of 2014-2022. The first region, located in the Wuling Mountains and Hunan province, has a subtropical climate and the second in Qinghai, a northwest province of China, has a highland continental climate which is characterized by a cold and long winter and warm, short summer. Previously there were nine new species published from the first region.

Two new freshwater species of (Bacillariophyta) from the Wuling Mountains, China.

Two sympatric species found at the same specific locality in the Wuling Mountains of China are documented with light and scanning electron microscope. Both species are new to science and named and has large frustules that are either clockwise or counterclockwise twisted when viewed with the light microscope, and possesses distinctive fibulae, mound-like outgrowths on the valve surface throughout, raised longitudinal ridges on both sides of the raphe, and two helictoglossa-like processes at one apex internally. has narrowly ovate valve outline, distinctive fibulae, troughs alternating with crests from pole to pole, and two helictoglossa-like processes at one apex internally.

: a new diatom species (Bacillariophyta) found in the brackish Lake Qinghai, China.

Lake Qinghai is an ancient brackish water lake in which several endemic diatom species have been discovered. In this study, a species of is observed under light and scanning electron microscopy and described as new, The living cells of always lie in girdle view due to the cell depth being much larger than valve width (3.3-8.

Ultrastructure of three Species of (Bacillariophyta) from Lake Qinghai of China, with reference to the external areola occlusions.

Three sympatric species, found at the same specific locality in Lake Qinghai, China, are studied by using light and scanning electron microscope. Two species are proposed as new to science and named as sp. nov.

(Asteraceae, Crepidinae), a new species from Hubei, China.

T.Deng, D.G.

Rediscovery of reveals a new genus and a new species in Mazaceae.

(Mazaceae) is a perennial herb with opposite leaves and endemic to central China that has not been collected for 130 years. Rediscovery of this enigmatic species in the wild allows for determination of its phylogenetic position within Mazaceae. Phylogenetic reconstruction of Mazaceae based on DNA sequences from four plastid markers (, , and -) and nuclear ribosome ITS consistently showed that was not monophyletic.

From chaos to order: the life history of (Lagerstedt) Genkal and Kharitonov (Bacillariophyta), from initial cells to vegetative cells.

This study presents observations on three species of and documents and illustrates the life history of . We have divided the life history of into the following four series of successive stages: auxospore, initial cell, pre-normal vegetative cell, and normal vegetative cell. The initial cell has a cylinder-like and a frequently twisted outline, a longitudinal perizonium wholly covering the valve surface, and a disc-shaped incunabular scale, but lacks any transverse perizonium bands.

(Primulaceae), a new species from limestone area in Hunan Province, central China.

A new species of , (Primulaceae), is described and illustrated from western Hunan, central China. The species is similar to in plant densely strigillose, leaves subglabrous adaxially, and flowers usually solitary in axils of upper leaves, but differs by the succulent leaves, the creeping or ascending stems 15-25 cm long, and the suborbicular to broadly elliptic corolla lobes. This new species is also supported by a molecular phylogenetic analysis of some species based on ITS sequence data.

(Caryophyllaceae), a new species from China.

, a new species of Caryophyllaceae known from only three populations in Hubei and Hunan provinces of central China, is described. Both morphological and molecular data were used to assess the taxonomic status and relationships of this species. Morphologically, is most similar to Franch.