The Speculated Optimization Landscape Management of Kunming EXPO‘99 from the Viewpoint of Tourist Esthetic Experience INDICATION OF THE TYPE FOR PHILADELPHUS KUNMINGENSIS AND ITS VARIETY Two New Species of the Genus Bupleurum (Umbelliferae) from China Dynamics of the Seed Bank of Cyclobalanopsis glaucoides in Cyclobalanopsis glaucoides Forest on the Xishan Mountain in Kunming THE RESEARCH HISTORY AND PRESENT STATUS ON THE CHEMICAL COMPONENTS OF GENUS HEMSLEYA (CUCURBITACEAE) THE PHYTOGEOGRAPHICAL AFFINITIES OF PTERIDOPHYTES BETWEEN CHINA AND JAPAN KARYOTYPE ANALYSIS OF ADOXA ORIENTALIS New Taxa of Chinese Aristolochia L. New Taxa of the Genus Agrostis from Yunnan Effects of Cd2+ 、Al3+ on the DNA synthesis and DNA repair in Vicia faba Two New Species of the Genus Bupleurum (Umbelliferae) from China Investigation and Analysis of Impact from High Frost on Vascular Plants in the Kunming Botanical Garden Analysis of altitude adaptability of main flue-cured tobacco varieties in Kunming City The Occurrence of Longfengshania in the Early Cambrian from Haikou, Yunnan, China Phenotypic Diversity of Natural Populations of Michelia yunnanensis THE CHEMICAL CONSTITUENTS OF ARISTOLOCHIA KUNMINGENSIS A PRELIMINARY STUDY ON PHOTOSYNTHESIS OF PICEA BRACHYTYLA VAR. COMPLANATA AND ABIES GEORGEI Pollen Analysis of Forest Surface Samples in Kunming Area A Preliminary Study on the Relationship Between the Pollen Percentages in Forest Surface Samples and Surrounding Vegetation on west Mountain of Kunming, Yuunan