The karyotype of Lilium concolor Salisb.var.partheneion Bak, was analysed and C-bending patterns of the karyotype were studied. The plants of Lilium concolor Salisb.var.partheneion Bak. were collected from the natural habitat at Seo-myun Wolsung-gun Kyungbuck in Korea. Somatic chromosome numbers were found to be 2n = 24, 2n = 24 + 1B and 2n = 24 + 2B, which consist of 4v + 20i ordinary chromosomes and one or two telocentric supernumerary chromosomes.
The karyotype is characterized by five kinds of chromosomes a, b, f, I and k which possess secondary constriction (Fig. 1). The appearance of secondary constrictions in these five chromosomes varied among cells and plants. Five variations in karyotype were distinguishable by the homozygous, heterozygous, or latent condition of secondary
constrictions in chromosome f and I (Table I). Sixty bands were observed in 2n = 24 + 2B chromosomes. The bands on the chromosomes were distributed in the centromere, secondary constriction, and intercalary regions of arms. Each centromere and constriction region of all chromosomes showed a band. Each chromosome pair was homozygous in banding patterns. According to banding patterns there is no variation in karyotype which is distinguished by secondary
constriction (Fig. 2,3).
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