Variation Patterns of Characters of Flowers and Fruits of Berberis replicata W.W.Smith(Berberidaceae) from Yunnan Province Light energy utilization and dissipation in seedlings of three tropical rain forest tree species with different ecological habits Comparative Morphology of the Tepal Epidermis in Illiciales Floral Organogenesis of Kmeria septentrionalis(Magnoliaceae) Reappraisal of the generic status of Pteroxygonum (Polygonaceae) on the basis of morphology, anatomy and nrDNA ITS sequence analysi Two New Varieties of Yulania Spach from Henan Observation of surface morphology of Chimonanthus tepals and its significance Pollen morphology of Horsfieldia tetratepala A new variety of Magnolia(Magnoliaceae) from Hubei,China Variation Patterns of Main Taxonomic Characters of Berberis sublevis (Berberidaceae) from Yunnan Province Induction of Continuous Tepal Differentiation from in Vitro Regenerated Flower Buds of Hyacinthus orientalis Cloning and Sequence Analysis of AP3-3 Gene in Normal Plant and Natural Variant from Anemone rivularis var.flore-minore Morphogenesis of Pistillate Flowers of Cercidiphyllum japonicum (Cercidiphyllaceae) The structures of tepals and fruits of Polygonaceae in China with a note on their systematic significance Pollen morphology, tepal and fruit microcharacteristics of the genus Fagopyrum Mill. from China The Effects of Night Chilling on Chlorophyll Fluorescence in Seedlings of Two Tropical Rain Forest Tree Species