Review on the photosynthetic function of non-photosynthetic woody organs of stem and branches Anatomical Characteristics of C4 and C3 Photosynthetic-pathway Poaceae Plants in Hainan Environmental regulations of C3 and C4 plants STUDY ON THE PHOTOSYNTHETIC PATHWAY OF CYMBIDIUM Comparative Study of the Photooxidative Response in Leaf Discs from Plants with Different Photosynthetic Pathways DISTRIBUTION OF C3 AND C4 PHOTOSYNTHETIC PATHWAYS OF PLANTS ON THE STEPPE OF NORTHEASTERN CHINA Applications of Stable Carbon Isotope Techniques to Ecological Research The Distribution of Stomata and Photosynthetic Pathway in Leaves The Photosynthesis Pathway in Leaves of Dendrobium officinale