%0 Journal Article %A CHEN Qiu-Yan %A WANG Hong %T Leaf Structure of Ten Species of Bryum Dill from No.1 Glacier of Tianshan Mountains %D 2016 %R 10.7525/j.issn.1673-5102.2016.06.004 %J Bulletin of Botanical Research %P 818-826 %V 36 %N 6 %X Anatomical structure of the leaf of ten species of Bryum Dill from No.1 glacier of Tianshan Mountains was observed to explore the relationship between leaf morphological characteristics and environment and its taxonomic significance. The results indicated that:The leaf cells of these 10 species had thick cytoplasm. Middle ribs had large primary cells and well developed small-thick-wall-cells. The cell wall of leaf was thickened and the surface was concaved inwardly while being dried.The leaf surface of most species had particles and different ornamentation, such as rhombic, longitudinal ones etc. These characters were all the adaptabilities to environment for plants to improve cold resistance and drought resistance, to reduce moisture evaporation, and to enhance water conduction. Although some species with similar leaf structures were closely related, but they could be easily and accurately identified by combining paraffin sectioning and SEM technique. The results could provide some theoretical basis for classification of Bryum Dil. %U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2016.06.004