A new flavone glycoside of Heterosmilax yunnanensis GC MS Analysis of Volatile Constituents of Rhizoma Heterosmilacis Seed coat morphology of Smilacaceae and its systematic significance Studies of systematic evolution and karyotypic variation in Smilax and Heterosmilax (Smilacaceae) A phylogenetic analysis of the Smilacaceae based on morphological data Studies on chemical constituents of Heterosmilax yunnanensis(Ⅱ) THE CHROMOSOME NUMBERS OF 11 SPECIES IN SMILAX L. AND HETEROSMILAX KUNTH