Anatomical Structure of Nutritive Organs in Calystegia soldanella

The anatomical structure of nutritive organs of Calystegia soldanella growing in the seacoast area of Qingdao city was studied by using paraffin section method.The observed results are as follows: it belongs to typical salt-secreting plant;there are lots of salt glands that consist of multi-cells and distribute in upper and lower epidermis of leaves;the epidermal cells of leaf arrange compactly and cuticle covers the epidermis;there are stomata in upper and lower epidermis and the stomata are as the same level as epidermis cells;its leaves are bifacial and have advanced palisade tissue.There are a lot of stomata that distribute in epidermis of stems.There are several layers of prothenchyma between epidermis and cortical layer.The epidermal cells of stems stand out to form lots of fibrils.Its anatomical structure shows adaptation to the salinity environments.