Meiotic Studies in 14 Species of the Nepeta L. (Lamiaceae) From Cold Desert Regions of Lahaul-Spiti and Adjoining Areas of Northwest-Himalaya, India

Abstract

Chromosome numbers, meiotic course and pollen viability were given for 14 species of genus Nepeta L. collected from different localities in Lahaul-Spiti, Kulu, Chamba, Kinnour and Sirmour districts of Himachal Pradesh, India. Except for N. leucophylla (2n=4x=36, tetraploid), all the other 13 species (N. campestris, N. connata, N. discolor, N. eriostachya, N. elliptica, N. govaniana, N. graciliflora, N. leucolaena, N. linearis, N. longibracteata, N. podostachys, N. spicata and N. supina) were diploid (2n=2x=18). Analysis of result shows that the majority of Indian Nepeta species are present with x=9.