(Rubiaceae, Ophiorrhizeae), a new species from Vietnam.

is described as a new species endemic to Central Vietnam. It is morphologically closest to in having setose hairs on the abaxial leaf surface and a pedunculate head-like inflorescence but differs from the latter by a number of characteristics: shorter stem, 3-lobed stipules, narrowly lanceolate leaf blades with a cuneate-oblique base and 20-22 pairs of secondary veins, 3.5-4.

A new species of (Araceae) from Vietnam.

is described as a new species endemic to Vietnam. It is unique in the genus in having an oblong-elliptic spathe limb with an obtuse apex and yellowish-greenish filiform staminodes with a down-curved acumen. The ecology, distribution and assessment of the conservation status of the new taxon, as well as a key to all known species in Vietnam, are provided.

, a new species of Gesneriaceae from southern Vietnam.

is described as a new species from Khanh Hoa Province, southern Central Vietnam. It is distinct in the genus in having scutellate leaves that make it a highly potential ornamental plant. The new species looks like in general shapes, sizes and colours of habit, inflorescence, flower, and leaf but is distinguishable by adaxially glabrous and abaxially strigose leaves with serrate margins, scutellate leaf blade and appressed downwards tomentose petiole, sparsely glandular hairs on apical 1/2 of the gynoecium and trapeziform one-lipped stigma with slightly emarginated apex.

Supercapacitive Properties of Micropore- and Mesopore-Rich Activated Carbon in Ionic-Liquid Electrolytes with Various Constituent Ions.

Ionic-liquid (IL) electrolytes, characterized by large potential windows, intrinsic ionic conductivity, low environmental hazard, and high safety, are used for micropore- and mesopore-rich activated-carbon (AC and AC ) supercapacitors. IL electrolytes consisting of various cations [1-ethyl-3-methylimidazolium (EMI ), N-propyl-N-methylpyrrolidinium (PMP ), and N-butyl-N-methylpyrrolidinium (BMP )] and various anions [bis(trifluoromethylsulfonyl)imide (TFSI ), BF , and bis(fluorosulfonyl)imide (FSI )] are investigated. The electrolyte conductivity, viscosity, and ion transport properties at the AC and AC electrodes are studied.

Identification, sexual dimorphism and aspects of the natural history of Sapria himalayana (Rafflesiaceae) on Vietnam's Lang Biang Plateau.

Background: Sapria is a distinctive and narrowly host-specific holoparasitic genus belonging to the Rafflesiaceae. Sapria himalayana, rare throughout its range from NE India, SW China, Thailand to Vietnam, is a little-understood species first recorded for Vietnam in 1959, and only recollected there over half a century later in February 2017. This has facilitated an assessment of its taxonomic identity and our understanding of its morphology and natural history aspects.

[Calcifying pseudoneoplasm of the neuraxis].

Calcifying pseudoneoplasms of the neuraxis (CAPNON) are rare lesions of the central nervous system. To date, about 60 cases have been reported in literature. We present a case that had the peculiarity to occur in a pregnant woman.

Synthesis of Novel Benzothiazole-Piperazine Derivatives and Their Biological Evaluation as Acetylcholinesterase Inhibitors and Cytotoxic Agents.

Objective And Method: A new series of benzothiazole-piperazine derivatives was synthesized and a complete chemical characterization of the novel compounds was provided. In vitro cytotoxic activities were screened against colorectal (HCT-116), breast (MCF-7) and hepatocellular (Huh7) cancer cell lines by Sulforhodamine B assay.

Result And Discussion: All compounds showed cytotoxic activity against hepatocellular (Huh7) and breast (MCF-7) cancer cell lines.

trnL-F is a powerful marker for DNA identification of field vittarioid gametophytes (Pteridaceae).

Background And Aims: The gametophyte phase of ferns plays an important role in habitat selection, dispersal, adaptation and evolution. However, ecological studies on fern gametophytes have been impeded due to the difficulty of species identification of free-living gametophytes. DNA barcoding provides an alternative approach to identifying fern gametophytes but is rarely applied to field studies.