Influences of Growth Media, and Hormone Types and Concentrations on Cutting Propagation of Rhododendron latoucheae Effects of Plant Growth Regulator on Cutting Propagation of Rhododendron latoucheae ON THE ORIGIN AND GEOGRAPHIC DISTRIBUTION OF GENUS RHODODENDRON L. Chemical constituents in twigs and leaves of Rhododendron fortunei Effects of hormone types and concentrations on cutting propagation of Rhododendron latoucheae and its evaluation STUDIES ON THE CORRELATIVITY OF FRUIT MORPHOLOGY AND SEED NUMBER FOR 12 SPECIES OF RHODODENDRON L. FROM ZHEJIANG PROVINCE Effects of Drought Stress on Seed Germination and Seedling Physiological Characteristics of Rhododendron latoucheae Chemotaxonomic Study of Rhododendron Flavonoids from Rhododendron primulaeflorum Chemical constituents in flowers of Rhododendron lapponicum