THE MACERATION METHOD FOR PREPARATION OF PLANT SPECIMEN OF HIGH RESOLUTION FOR SCANNING ELECTRON MICROSCOPY USING MICROWAVE Studies on Pollen Morphology of Nelumbo Germplasm Scanning Electron Microscope Observation on Pollinium Morphology of Five Most Common Cultivated Orchid Genera(Orchidaceae) Deodorization Effects of Metal Reagents Pd/Al3O2on the Powder of LWT Effect of ethanol concentration in receiver fluid on in vitro transdermal test xtraction ofAstragalus polysaccharides bycellulase Comparative Study of Tracheary Elements in Peranemaceae from China Scanning Electron Microscope Observation on Pollinium Morphology of Five Most Common Cultivated Orchid Genera(Orchidaceae)