ANALYSES ON THE CHARACTERS OF THE GENUS OTTELIA (HYDROCHARITACEAE) IN CHINA CLADISTIC STUDIES ON THE GENUS OTTELIA (HYDROCHARITACEAE) A NEW SPECIES OF OTTELIA (HYDROCHARITACEAE) AND ITS KARYOTYPE Chromosome Numbers and Karyotype Analysis of 9 Species in Hydrocharitaceae A New Species of Ottelia (Hydrocharidaceae) Study on Margarya melanioides‘ feeding characteristics towards four attached algae and its potential restoration in Erhai basin Microsatellites primer development for Ottelia acuminata(Hydrocharitaceae), a submerged macrophyte endemic to southwestern China Preliminary Study on the Anti-tubercular Effect of Ottelia alismoides(L.)Pers. ELECTROPHORETIC BANDING PATTERNS OF THREE ISOENZYMES OF CHINESE OTTELIA AND THEIR SYSTEMATIC SIGNIFICANCE NEW DATA OF FLORA FROM CHINA Morphological Study of Fruit,Seed and Seedling Development of Ottelia alismoides (Hydrocharitaceae) Effects of Low CO2 on Photosynthetic Characteristics of Ottelia alismoides and Hydrilla verticillata