, a new species of Brassicaceae in China.

, a new species from Hunan Province, China, is described and illustrated. is similar to . From the latter, is readily distinguished by the terminal leaflet of the cauline leaf 4.

, a new species of (Fabaceae) from Xinjiang, China.

A new species, Z. Z. Yang & Q.

A new combination and synonym in (Apiaceae, Apioideae), based on morphological, molecular and cytological evidence.

Specimen examinations and field observations revealed that Bupleurumsmithiivar.parvifolium was distinctly different from B.smithiivar.

Phylogeny, biogeography, and character evolution of (Gnaphalieae, Asteraceae).

The HAP clade, mainly including Mill, DC., and Kirp., is a major component of tribe Gnaphalieae (Asteraceae).

The identity of (Apiaceae).

Nakai (Apioideae, Apiaceae), originally found in the Wuling Mountain of China, was initially described as a species but later treated as a variety of Vest ex Spreng. However, researchers have recently found that it is more closely related to DC. In this study, we conducted morphological and phylogenetic analyses as well as chromosome counting to determine the taxonomic status of B.

Parallel evolution, atavism, and extensive introgression explain the radiation of sect. (Berberidaceae) in southern East Asia.

East Asia is the richest region of plant biodiversity in the northern temperate zone, and its radiation provides key insights for understanding rapid speciation, including evolutionary patterns and processes. However, it is challenging to investigate the recent evolutionary radiation among plants because of the lack of genetic divergence, phenotypic convergence, and interspecific gene flow. sect.

Phylogeny of in China-with a special reference to its nutlet morphology and plastid genome.

The genus comprises nearly 60 species mainly distributed in East and Southeast Asia. China has the largest number of species in the world, with a total of 44 species, of which 38 are endemic. Nutlet morphology is useful for the taxonomic delimitation of .

A new species of (Convolvulaceae) from Yunnan, China.

, a new species from Yunnan Province, China, is described and illustrated. The new species resembles and , but differs from these in the flowers with an entire or shallowly lobed corolla, as well as smaller elliptic bracts, lax flat-topped cymes and shorter corolla tubes. An updated key to the species of from Yunnan province is also provided.

A new combination in (Boraginaceae, Rochelieae) based on morphological, molecular and palynological evidence.

was recently transferred to the monotypic genus based on phylogenetic studies, while the related species, , has remained in the genus . In this study, morphological, molecular, and palynological evidence supports that should be transferred to the genus . Both and share a combination of nutlets features that distinguish them from : a longer adaxial keel and a linear attachment scar.

Biomass and Species Diversity of Different Alpine Plant Communities Respond Differently to Nitrogen Deposition and Experimental Warming.

The ability of fragile ecosystems of alpine regions to adapt and thrive under warming and nitrogen deposition is a pressing conservation concern. The lack of information on how these ecosystems respond to the combined impacts of elevated levels of nitrogen and a warming climate limits the sustainable management approaches of alpine grasslands. In this study, we experimented using a completely random blocked design to examine the effects of warming and nitrogen deposition on the aboveground biomass and diversity of alpine grassland plant communities.

(Boraginaceae), a new species from Xinjiang, China.

, a new species of Boraginaceae from northern Xinjiang, China, is described and illustrated here. is similar to and ; it differs in having a particularly bristly indumentum, unbranched stems, white and yellow corollas, anthers united only at base, and nutlets with a stipitate cicatrix. An updated key to the species of from Xinjiang and Altai Mountains is also provided.

(Rubiaceae), a new species from Yunnan, China.

, a new species of (Rubiaceae) collected from Yunnan, China, is described for the first time. It is morphologically close to , but differs from the latter mainly by its inflorescences with 5-9 flowers, its 1.5-2.

Ethnopharmacological documentation of medicinal plants used for hypertension among the local communities of DIR Lower, Pakistan.

Ethnopharmacological Relevance: Local communities of the Dir Lower district in Northwest Khyber Pakhtunkhwa, Pakistan rely on botanical anti-hypertensive preparations. Insights into the traditional uses of local flora can direct investigation into phytochemical screening.

Aim Of The Study: This ethnobotanical study aims to identify plant species and recipes used by the local people for the treatment of hypertension in the district of Dir Lower.

Response of soil CO2 emission and summer maize yield to plant density and straw mulching in the North China Plain.

Demand for food security and the current global warming situation make high and strict demands on the North China Plain for both food production and the inhibition of agricultural carbon emissions. To explore the most effective way to decrease soil CO2 emissions and maintain high grain yield, studies were conducted during the 2012 and 2013 summer maize growing seasons to assess the effects of wheat straw mulching on the soil CO2 emissions and grain yield of summer maize by adding 0 and 0.6 kg m(-2) to fields with plant densities of 100,000, 75,000, and 55,000 plants ha(-1).

Flavans from Iris tenuifolia and their effects on β-amyloid aggregation and neural stem cells proliferation in vitro.

Two new flavans (1, 2) and a new flavanone (3), together with three known compounds (4-6), were isolated from the roots of Iris tenuifolia. Their structures were elucidated by means of spectroscopic methods including 1D and 2D NMR techniques and mass spectrometry. Compounds 1, 4, and 6 were further confirmed by single-crystal X-ray diffraction analysis.

[Relationship between species distribution and habitat effective temperature in subalpine meadow of Mt. Xiaowutai].

By the methods of sugar-inversion, plant community field survey and laboratory analysis, this paper measured the effective temperature of habitats, relative coverage of species, and aboveground biomass in subalpine meadow of Mt.Xiaowutai, and analyzed the relationship between species distribution and habitat effective temperature in landscape scale. The results showed that among 97 vascular plant species registered, the distribution patterns of about 36 % of total species were influenced by the effective temperature of the habitats, and the relative coverage of about 20% of them correlated significantly with the effective temperature.