The Structure of Male Flower of Vallisneria longipedunculata by ESEM Effects on the transformation of phosphorus in sediment with growing of Vallisneria natans A new species of Vallisneria (Hydrocharitaceae) from Anhui Province, China Effects of cyanobacterial accumulation and snail grazing on the growth of vallisneria natans Effects of Parafossarulus striatulus on the Growth of Vallisneria spiralis Effects of substrate on Vallisneria natans and Elodea canadensis under cyanobacterial stress conditions Effects of snail herbivory and sediment type on the growth of Vallisneria spiralis Mutualistic relationship between freshwater snails and aquatic macrophytes Effect of different salinity on physiological features of Vallisneria natans The uptake of nitrate and ammonium by the root of Vallisneria natans The Influences of Suspended Sands on Photosynthetic Fluorescence Characteristics of Vallisneria natans in Turbidity Waters ECOLOGICAL STUDIES ON VALLISNERIA L.IN CHINA Effects of environmental factors and their interaction on Vallisneria natans by orthogonal test Influence of silts on growth and development of Vallisneria Asiatica and its leaves’ photosynthetic physiological characteristics in Turbid Water Effects of snail herbivory on interspecific relationship between Elodea nuttallii and Vallisneria spiralis Observe the pollen grains of Vallisneria longipedunculata by electron microscope Observe the pollen grains of Vallisneria longipedun-culata by electron microscope REPRODUCTIVE ECOLOGY OF VALLISNERIA NATANS Competition between Myriophyllum spicatum L. and Vallisneria natans (Lour.) Hara at Different Growth Stages Chromosome Numbers and Karyotype Analysis of 9 Species in Hydrocharitaceae