| Abstract: | Chromosome numbers for 86 vascular plant species of 69 genera and 32 families, from Sakhalin, Moneron and Kurile Islands, are given. The chromosome numbers are reported here for the first time for the following 17 species: Arabis japonica, Artemisia punctigera, Calamagrostis urelytra, Callianthemum sachalinense, Cerastium sugawarae, Dianthus sachalinensis, Lonicera tolmatchevii, Melandrium sachalinense, Myosotis sachalinensis, Oxytropis austrosachalinensis, O. helenae, O. sachalinensis, Polemonium schizanthum, Ranunculus hultenii, Rubus pseudochamaemorus, Scrophularia grayana and Senecio dubitabilis. In addition, for Alchemilla gracilis, Allium ochotense, Caltha fistulosa, Chrysosplenium kamtschaticum, Draba cinerea, Echinochloa occidentalis, Erysimum pallasii, Sagina crassicaulis and Stellaria fenzlii, new cytotypes were revealed. At present, in Sakhalin, Moneron and the Kurile Islands chromosome numbers have been counted for 536 species. Chromosome numbers are now known for 48 species from Moneron. |
