A COMPARATIVE ANATOMY OF DIFFERENT POPULATIONS ON APOCYNUM VENETUM AND POACYNUM HENDERSONII The Soil Habitat Types of Poacynum hendersonii communities in the Tarim Basin of Xinjiang Molecular Identification of Apoacynum venetum and its Confusable Species Characteristics of Photosynthetic Physiology and Growth with 8 Luobuma Ecotypes in the Apocynum and Poacynum from Altay of Xinjiang,China Micromorphological characters of the seeds of Apocynum venetum and Poacynum hendersonii Simultaneous determination of rutin, hyperin, and isoquercitrin in leaves of Apocynum venetum and Poacynum hendersonii located in Xinjiang by HPLC