TY - JOUR AU - Li , Xiao juan AU - Li, Jian xiu PY - 2023/01/18 Y2 - 2024/03/29 TI - SEM Study of Leaf Epidermis and Spores of Nine Species Of Dryopteris Adans. From Shandong Province, China JF - Bangladesh Journal of Botany JA - Bangladesh J. Bot. VL - 51 IS - 40 SE - Articles DO - 10.3329/bjb.v51i40.63839 UR - https://www.banglajol.info/index.php/BJB/article/view/63839 SP - 951-960 AB - <p>Scanning Electron Microscopy (SEM) structures of leaf epidermis and spores of 9 species of <em>Dryopteris </em>Adans. from Shandong Province of China were studied. These species are: <em>Dryopteris erythrosora </em>(Eaton) O. Ktze.<em>, D. fuscipes </em>C. Chr.<em>, D. tsoongii </em>Ching<em>, D. crassirhizoma </em>Nakai and <em>D. championii </em>(Benth.) C. Chr.<em>, D. lijianxiuii </em>X. J. Li (new species), <em>D. shandongensis </em>J. X. Li &amp; F. Li<em>, D. laoshanensis </em>J. X. Li &amp; S. T. Ma and <em>D. parachinensis </em>Ching &amp; F. Z. Li<em>. </em>The study showed that the perispore ornamentation and submicroscopic structural characteristics of peripheral wall of leaf epidermal cells were stable within each species and have significant differences between species. It does not only provide evidences of submicroscopic structural characteristics for its morphological classification, but also provides a palynological basis for the classification and identification of new pteridophyte resources of Shandong area. A new Identification Key to 9 species of <em>Dryopteris </em>Adans. is prepared using both morphological and SEM characters of spores and leaf epidermis. Therefore, the submicroscopic structural characteristics of palynology and the leaf epidermis of the genus were of great significance in taxonomy.</p><p>Bangladesh J. Bot. <strong>51</strong>(4): 951-960, 2022 (December) Special</p> ER -