Induction of Continuous Tepal Differentiation from in Vitro Regenerated Flower Buds of Hyacinthus orientalis Variation Patterns of Characters of Flowers and Fruits of Berberis replicata W.W.Smith(Berberidaceae) from Yunnan Province Observation of surface morphology of Chimonanthus tepals and its significance Cloning and Sequence Analysis of AP3-3 Gene in Normal Plant and Natural Variant from Anemone rivularis var.flore-minore Variation Patterns of Main Taxonomic Characters of Berberis sublevis (Berberidaceae) from Yunnan Province