This paper describes and illustrates the morphological traits of Impatiens zhaojueensis Q. Luo (Balsaminaceae), a new species from the Sichuan Province of southwestern China. Using a scanning electron microscope (SEM), the micromorphological characteristics of its pollen grains and seeds are also described. The new species is closely related to Impatiens baishaensis, but it has larger flowers, obround dorsal petals, somewhat clawed lateral united petals, obround or obround‐dolabriform distal lobes and the ornamentation on the pollen grains has wider meshes.

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This article describes and illustrates Paris panxiensis (J. L. Liu) Y. Yuan & J. L. Liu from a morphological perspective, based on field survey, indoor potting and garden cultivation, and observations gleaned from these activities. This variety is closely related to P. delavayi Franch, P. daliensis H. Li et V. G. Soukup, P. lihengiana G. W. Hu & Q. F. Wang and P. polyphylla Smith var. stenophylla Franch, but differs from these in having the following characteristics: flower parts with a basic number of 4–8, petals far shorter than sepals, linear-virgate, bottom linear, gradually thickening upward, erect, never extend or curved, apex rounded or obtuse, and connectivum projecting.

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Under the grid integrated control management mode, operation and maintenance station location has been the key to ensure the stable operation of the grid system. Based on grid line cost minimization of operation and maintenance station and a k-means algorithm, an operation and maintenance station location model is established. Through the practical example, the model makes operation and maintenance station location rational and scientific under considering the operation and maintenance line materials cost between substations. The electricity materials play important roles in the study and some study will be put on it.