Determination of dactylorhin A and militarine in three varieties of Cremastrae Pseudobulbus/Pleiones Pseudobulbus by HPLC New Taxa of Orchidaceae from China (2) Pleione microphylla, a new orchid from southern Guangdong, China Chemical constituents from Pleione bulbocodioides Scanning Electron Microscope Observation on Pollinium Morphology of Five Most Common Cultivated Orchid Genera(Orchidaceae) Advances in studies on chemical constituents in plants of Pseudobulbus Cremastrae seu Pleiones and their pharmacological activities Chemical constituents from Pleione yunnanensis Chemical constituents from Pleione bulbocodioides Scanning Electron Microscope Observation on Pollinium Morphology of Five Most Common Cultivated Orchid Genera(Orchidaceae)