Analysis on ideas and methods to identify target components group of Chinese materia medica preparation Infrageneric relationships of Korean Viola based on eight chloroplast markers Responses of riverine nitrogen export to net anthropogenic nitrogen inputs: A review. Anatomical Study of the Stems of the 10 Selaginella Species and Its Taxonomic Significance A revision of Elaeagnus L. (Elaeagnaceae) in mainland China Infrageneric and Sectional Relationships in the Genus Rhododendron(Ericaceae) Inferred from ITS Sequence Data Application of AFLP Markers to Genetic Relationships between Maize and its Wild Relatives