Chromosome numbers of 13 species in the genus Dryopteris (Dryopteridaceae) from Yunnan, China Variations of 18S rDNA Loci Among Six Populations of Paeonia obovata Maxim. (Paeoniaceae) Revealed by Fluorescence In Situ Hybridization Supplemental Cytogeographical Studies on the Scilla sinensis (Louriro) Merrill Complex in China The Chromosome Variation of Barnardia japonica Polyploid Complex Uncovered by Giemsa-C Banding Genetic and Epigenetic Variation in the Cytotype Mixture Population of Actinidia chinensis