Analysis of Karyotypes and Evolutionary Features of Wild Species of Buckwheat Karyotypes of 12 Elymus nutans L. in the Northwestern Plateau of Sichuan Province STUDIES ON KARYOTYPES OF THREE SPECIES IN CRUCIFERAE AN 0BSERVATION ON KARYOTYPES OF THREE DIFFERENT POPULATIONS OF PARIS POLYPHYLLA Distribution, Morphology of Aster sinianus Hand. Mazz. (Asteraceae: Astereae)and Its Karyotypic Study Karyotypic Studies on Three Hybrids and Their Parents in Magnoliaceae Karyotype Analysis of Five Saussurea Species Karyotypes of Seven Species of Alnus in European and American Areas Somatic Cell Karyotypes of Three Elytrigia elongata Accessions A Study on Karyotypes of 6 Species of Elymus in China Chromosome Numbers and Karotypes Analysis of Genus Perilla L Analysis of chromosome karyotypes on three germplasm of Elytrigia repens ANALYSIS OF RESPECTIVE CHROMOSOME NUMBERS AND KARYOTYPES OF 20 VARIETIES OF GENUS NELUMBO Analyses on Karyotypes of Roxburgh Rose Karyotypes, Banding Patterns and the Evolution of Different Ploidy Wheats Cytogenetical Studies on Sorghum (S. bicolor), Sudangrass (S. sudanense), and Their Hybrid A Karyotypic Study on Three Aster Species (Asteraceae) Karyotypes analysis of Ferula fukanensis