(Orchidaceae, Aeridinae), a new subalpine epiphytic orchid from the Mountains of Southwest China.

, a new orchid species from the Balang Mountain, Sichuan Province, Southwest China, is described and illustrated. It morphologically resembles , but differs in having shorter stems, a reniform epichile and a sub-hemispherical hypochile (spur), obtuse-rounded at the apex. The results of molecular phylogenetic analyses based on nuclear ribosome internal transcribed spacer (nrITS) and four chloroplast DNA markers (K, A-H, M-D and L-F) from 50 species indicate that is closely related to and , also endemic to the Hengduan Mountains.

 (Primulaceae), a new species of the primrose from Sichuan, China.

This paper describes and illustrates a new species of Primulaceae, from Wolong National Nature Reserve in Sichuan Province, China. It is very rare and currently only known from its type locality. The new species belongs to subsection Chartacea of the section Petiolares on account of lacking bud scales at flowering, being efarinose and having distinct petiolate leaves with more or less rounded lamina.

 (Orchidaceae, Epidendroideae), a new species from Sichuan, China, based on molecular and morphological data.

(Orchidaceae), a new orchid species from Sichuan Province, Southwest China, is described and illustrated. It morphologically resembles and , but differs markedly from the former in having a thinner and slightly rolled downwards reniform epichile and the central thickened purple-red mat with irregular folds (vs. subtriangular epichile curves upwards, with 2 thick, brown to purplish-brown median ridges from base to apex), and can be clearly distinguished from the latter by having reniform epichile with lobed apex and subconical hypochile with bilobed apex that splits into two conical protrusions (vs.

[Absorbed components analysis of Zhitong Huazheng Capsules in rat serum by UPLC-Q-TOF/MS].

To identify and analyze the constituents in rat serum after oral administration of Zhitong Huazheng capsule (ZTHZC), and provide a reference for its further research on pharmacodynamics material basis. Female Wistar rats were selected as experimental animals, and received intragastric administration of ZTHZC at a dose of 1.5 g·kg⁻¹.