Abstract: In this present paper, karyomorphologically studies were carried out on nine species within four sections of the genus Primula. The interphase nuclei and prophase chromosomes of these species were ob-served to be the complex chromocenter type and the interstitial type respectively according to Tanaka's cata-logue. The numbers and karyotypes of metaphase chromosomes were formulated to be 2n = 16 = 12m + 4sm for P. monticola (Hand. - Mazz.) Chen et C. M. Hu, 2n= 20= 16m+ 2sm+ 2st for P. vialU Delavay ex Franch., 2n= 22 = 18m + 4sm for P. secundiflora Franch., 2n = 22 = 16m + 6sm for P. poissonU Franch., 2n = 22 = 18m + 4sm for P. beesiana Forr., 2n = 22 = 18m + 4sm for P. buUeyana Forr., 2n = 22= 19m + 2sm + 1st for P. pulvendenta Duthie, 2n = 22 = 16m (Isat) + 6sm for P. awantiaca W. W. Smith et Forr., and 2n = 20 = 14m (Isat) + 4sm + 2T for P. sikkimensis Hook.

Key words: Primula