Distyly in Forsythia suspensa (Oleaceae) Reproductive characteristics and adaptive evolution of pin and thrum flowers in endangered species, Primula merrilliana Reproductive Ecology of Distylous Fagopyrum dibotrys Compatibility of Different Pollination Combinations in Primula forbesii Flowering phenology and reproductive strategy study of distyly Fagopyrum Cymosum Development Process of Pistils and Stamens and Effect of Endogenous Hormone Content on Style Growth in Plumbago auriculata Lam. with Distyly Patterns of Floral Variation between Dimorphic and Monomorphic Populations in Distylous Luculia pinceana (Rubiaceae) Distyly and cryptic heteromorphic self-incompatibility in Mussaenda macrophylla (Rubiaceae) Self-pollination in buds and homostyly in Mussaenda shikokiana (Rubiaceae), a monomorphic species in a distylous clade Distyly and Pollination Biology of Dunnia sinensis (Rubiaceae) Patterns of Floral Variation between Dimorphic and Monomorphic Populations in Distylous Luculia pinceana (Rubiaceae) Comparative Study of Fruit-setting Characteristics of Distyly Arnebia euchroma (Boraginaceae) Plants Reproductive biology in the distylous species of Polygonum orientale Pollen Morphology of Seven Natural Primula maximowicizii Populations Reproductive biology of Polygonum japonicum