Аннотация:1. Based on chromosome counts of more than 1000 cells from 231 plants in the Tôhoku District, Anemone Hepatica var. japonica is determined to be diploid with a basic number x=7.2. Utilizing the Levan, Fredga and Sandberg (1964) definition of chromosome types, the chromosome complement consists of 2 pairs of M, 4 pairs of m and 1 pair of t chromosomes, among which the t chromosomes have satellites (Figs. 1, 2, 3).3. No karyotypic difference was found between the two forms, f. magna and f. variegata.4. 10 morphological variations, i.e., 3 basic homomorphic pairs, 3 intermediate and 4 derivative heteromorphic pairs from the basic ones, have been recognized for the seventh satellite chromosome pair (Fig. 4, Table 4).5. On the basis of analyzing the morphological variation of the seventh satellite chromosome pair among 7 populations, it is apparent that 2 basic types (1, 2) and the intermediate and the derivative types of them (1-2, 1', 1-0, 2-0) dominate over the other types (3, 1-3, 2-3) (Fig. 17, Table 4).6. Supernumerary chromosomes are not uncommon among the populations in the Tôhoku District; the frequency of plants with supernumerary chromosomes is sometimes high (Fig. 18, Table 5).7. Intra- and inter-individual numerical variation of supernumerary chromosomes is observed in some populations (Table 6).
