New Chromosome Counts and Their Taxonomic Implications in Primulina sensu lato (Gesneriaceae) In Situ Hybridization Analysis and Taxonomic Treatments of Rubus ellipticus,R. pinfaensis and R. ellipticus var. obcordatus Phylogenetic reconstruction of Chirita and allies (Gesneriaceae) with taxonomic treatments COMPARATIVE STUDIES ON FOENICULUM MILLER IN CHINA AND THE TAXONOMIC TREATMENT Micro-morphological Characteristics of Leaf Epidermis and Its Taxonomic Significance in Dioscorea from China A Systematic Study on the Genera Stewartia and Hartia (Theaceae) In Situ Hybridization Analysis and Taxonomic Treatments of Rubus ellipticus,R. pinfaensis and R. ellipticus var. obcordatus The Revision of Sect. Protoxytropis Bunge from Xinjiang Taxonomic Treatment of Chinese Frangula Mill. (Rhamnaceae)