Pollen Morphology of the Platycodonoid Group (Campanulaceae s. str.) and Its Systematic Implications A new taxonomic system of the Campanulaceae s.s. Evolution of the platycodonoid group with particular references to biogeography and character evolution Cyananthus lobatus f.albiflorus,a New Form of Campanulaceae in Tibet of China The Restoration of the Genus Cyclocodon ( Campanulaceae) and Its Evidence from Pollen and Seed-coat The Geography of the Campanulaceae: On the Distribution Centres Systematics of the Genus Cyananthus Wall. ex Royle Phylogeny of Hanabusaya (Campanulaceae), a Korean endemic, based on ITS sequences of nuclear ribosomal DNA Two New Species of Codonopsis From China Sporogenesis and Gametogenesis of Endangered Adenophora lobophylla Hong (Campanulaceae) Does the relative importance of resource competition and architectural effect in floral variation vary with stages of floral ontogeny? STUDIES ON THE LEAF EPIDERMIS OF THE CAMPANULACEAE IN HEILONGJIANG PROVINCE Echinocodon Hong, a New Genus of Campanulaceae and Its Systematic Position Echinocodon Hong, a New Genus of Campanulaceae and Its Systematic Position