[Objective] This study aimed to study the pharmacognostical properties of medicinal parts of stems and leaves of Viburnum Sargenti Koehne to provide refer- ence for its identification and application. [Method] Methods of characters and micro- scopic identification were used. [Result] Characters, transaction and microscopic characteristics of stems and leaves of V. sargenti Koehne were analyzed systemati- cally. [Conclusion] The experimental results can provide reference for the pharma- cognostical identification, further exploitation and utilization of stems and leaves of V. Sargenti Koehne.
Karyotype analysis of Lycium ruthenicum Murr. was carried out in this study. The results showed that the chromosome number was 2n=2x=24; the arm index was 48; the ratio of the longest chromosome to the shortest one was 1.31; the proportions of chromosomes with arm ratio higher than 2 was 0.08; the asymmetry index was 57.02; the karyotype type was 2A; and the karyotype formula was 2n=-24=20m＋4sm.
