Study oncharacteristics of Leaf epidermis of 10 species of Ferns

• Main Authors: YANG Li, HUANG Yuxian, LIU Shixiu, YAN Yuehong, DAI Xiling
• Format: Article
• Language: English
• Published: Academic Journals Center of Shanghai Normal University 2016-08-01
• Series: Journal of Shanghai Normal University (Natural Sciences)
• Subjects: Hypolepidaceae; Pteridaceae; Adiantaceae; leaf epidermis; stomatal apparatus
• Online Access: http://qktg.shnu.edu.cn/zrb/shsfqkszrb/ch/reader/create_pdf.aspx?file_no=201604017&flag=1&year_id=2016&quarter_id=4

The leaf epidermal structures of 10 species of ferns (5 genera;3 families) were investigated under light microscope (LM).The results indicated that:(1) Epidermis cells of ferns are mostly irregular,with deep smuate anticlinal walls;(2) The stomatal apparatuses occur in the lower epidermis and most of them are elliptical.In total 9 types of stomatal apparatus are observed in present investigation (Aisocytic type,Polocytic type,Axillocytic type,Anomoteracytic type,Actinocytic type,Copolocytic type,Diacytic type,Desmocytic type,Roundcytic type).Each species possesses 2~6 different types of stomatal apparatus;(3) According to the characters of leaf epidermis,we support that Hypolepidaceae and Dennstaedtiaceae should be combined as one family,but Pteridaceae and Adiantaceae should be separated.The results provide evidences for phylogeny and classification of Hypolepidaceae,Pteridaceae,Adiantaceae.