Dendrobium moniliforme var.malipoense,A New Variety of Orchidaceae from China Chemical Constituents of Dendrobium moniliforme Leaf photosynthetic characteristics and its response for light intensity of three species of Dendrobium Sw.in Huoshan County Studies on Polysaccharide Alkaloids and Minerals from Dendrobium moniliforme (L.)Sw. Comparison on growth, physiology and medicinal components of Dendrobium huoshanense hybrid and its parents