Cytological Studies of Eleven Species of Cyperaceae Collected from Central Nepal

抄録

Eleven species of Cyperaceae collected from central Nepal were karyomorphologically studied. Chromosome counts are reported for the first time to be 2n=42 for Carex cruciata, 2n=44 for C. cruenta, 2n=44 for C. fusiformis, 2n=44 for C. longipes var. nepalensis, 2n=44 for C. myosurus, n=14 for Isolepis setacea, and 2n=ca. 122 for Kobresia nepalensis. The chromosome counts of 2n=46 for C. remota and 2n=44 for Eleocharis kamtschatica are different from those presented in previous reports. The karyotypes of E. palustris (2n=16) and E. tetraquetra (2n=20) were the same as those presented in previous reports. One individual of E. palustris collected from Titigaon, Mustang District, showed 2n=15 chromosomes, which is considered to have been derived by fusion of 2 small chromosomes of the 2n=16 individual, forming one large chromosome.